61 results on '"Sanat, Phatak"'
Search Results
2. Computer vision detects inflammatory arthritis in standardized smartphone photographs in an Indian patient cohort
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Sanat Phatak, Somashree Chakraborty, and Pranay Goel
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artificial intelligence ,inflammatory arthritis ,digital health ,computer vision ,screening ,Medicine (General) ,R5-920 - Abstract
IntroductionComputer vision extracts meaning from pixelated images and holds promise in automating various clinical tasks. Convolutional neural networks (CNNs), a deep learning network used therein, have shown promise in analyzing X-ray images and joint photographs. We studied the performance of a CNN on standardized smartphone photographs in detecting inflammation in three hand joints and compared it to a rheumatologist’s diagnosis.MethodsWe enrolled 100 consecutive patients with inflammatory arthritis with an onset period of less than 2 years, excluding those with deformities. Each patient was examined by a rheumatologist, and the presence of synovitis in each joint was recorded. Hand photographs were taken in a standardized manner, anonymized, and cropped to include joints of interest. A ResNet-101 backbone modified for two class outputs (inflamed or not) was used for training. We also tested a hue-augmented dataset. We reported accuracy, sensitivity, and specificity for three joints: wrist, index finger proximal interphalangeal (IFPIP), and middle finger proximal interphalangeal (MFPIP), taking the rheumatologist’s opinion as the gold standard.ResultsThe cohort consisted of 100 individuals, of which 22 of them were men, with a mean age of 49.7 (SD 12.9) years. The majority of the cohort (n = 68, 68%) had rheumatoid arthritis. The wrist (125/200, 62.5%), MFPIP (94/200, 47%), and IFPIP (83/200, 41.5%) were the three most commonly inflamed joints. The CNN achieved the highest accuracy, sensitivity, and specificity in detecting synovitis in the MFPIP (83, 77, and 88%, respectively), followed by the IFPIP (74, 74, and 75%, respectively) and the wrist (62, 90, and 21%, respectively).DiscussionWe have demonstrated that computer vision was able to detect inflammation in three joints of the hand with reasonable accuracy on standardized photographs despite a small dataset. Feature engineering was not required, and the CNN worked despite a diversity in clinical diagnosis. Larger datasets are likely to improve accuracy and help explain the basis of classification. These data suggest a potential use of computer vision in screening and follow-up of inflammatory arthritis.
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- 2023
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3. Quantification of joint mobility limitation in adult type 1 diabetes
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Sanat Phatak, Pranav Mahadevkar, Kaustubh Suresh Chaudhari, Shreya Chakladar, Swasti Jain, Smita Dhadge, Sarita Jadhav, Rohan Shah, Aboli Bhalerao, Anupama Patil, Jennifer L. Ingram, Pranay Goel, and Chittaranjan S. Yajnik
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magnetic resonance imaging (MRI) ,outcome measure (healthcare) ,tenosynovitis ,metacarpophalangeal (MCP) joint ,limited joint mobility (LJM) ,stiffness ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
AimsDiabetic cheiroarthropathies limit hand mobility due to fibrosis and could be markers of a global profibrotic trajectory. Heterogeneity in definitions and lack of a method to measure it complicate studying associations with organ involvement and treatment outcomes. We measured metacarpophalangeal (MCP) joint extension as a metric and describe magnetic resonance (MR) imaging determinants of MCP restriction.MethodsAdults with type 1 diabetes were screened for hand manifestations using a symptom questionnaire, clinical examination, and function [Duruoz hand index (DHI) and grip strength]. Patients were segregated by mean MCP extension (60°) for MR imaging (MRI) scanning. Patients in the four groups were compared using ANOVA for clinical features and MRI tissue measurements (tenosynovial, skin, and fascia thickness). We performed multiple linear regression for determinants of MCP extension.ResultsOf the 237 patients (90 men), 79 (33.8%) with cheiroarthropathy had MCP extension limitation (39° versus 61°, p < 0.01). Groups with limited MCP extension had higher DHI (1.9 vs. 0.2) but few (7%) had pain. Height, systolic blood pressure, and nephropathy were associated with mean MCP extension. Hand MRI (n = 61) showed flexor tenosynovitis in four patients and median neuritis in one patient. Groups with MCP mobility restriction had the thickest palmar skin; tendon thickness or median nerve area did not differ. Only mean palmar skin thickness was associated with MCP extension angle on multiple linear regression.ConclusionJoint mobility limitation was quantified by restricted mean MCP extension and had structural correlates on MRI. These can serve as quantitative measures for future associative and interventional studies.
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- 2023
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4. Does hand stiffness reflect internal organ fibrosis in diabetes mellitus?
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Sanat Phatak, Jennifer L. Ingram, Pranay Goel, Satyajit Rath, and Chittaranjan Yajnik
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diabetic cheiroarthropathy ,fibrosis ,multi-organ ,hand - pathology ,joint stiffness ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
Fibrosis leads to irreversible stiffening of tissue and loss of function, and is a common pathway leading to morbidity and mortality in chronic disease. Diabetes mellitus (both type 1 and type 2 diabetes) are associated with significant fibrosis in internal organs, chiefly the kidney and heart, but also lung, liver and adipose tissue. Diabetes is also associated with the diabetic cheirarthropathies, a collection of clinical manifestations affecting the hand that include limited joint mobility (LJM), flexor tenosynovitis, Duypuytren disease and carpal tunnel syndrome. Histo-morphologically these are profibrotic conditions affecting various soft tissue components in the hand. We hypothesize that these hand manifestations reflect a systemic profibrotic state, and are potential clinical biomarkers of current or future internal organ fibrosis. Epidemiologically, there is evidence that fibrosis in one organ associates with fibrosis with another; the putative exposures that lead to fibrosis in diabetes (advanced glycation end product deposition, microvascular disease and hypoxia, persistent innate inflammation) are ‘systemic’; a common genetic susceptibility to fibrosis has also been hinted at. These data suggest that a subset of the diabetic population is susceptible to multi-organ fibrosis. The hand is an attractive biomarker to clinically detect this susceptibility, owing to its accessibility to physical examination and exposure to repeated mechanical stresses. Testing the hypothesis has a few pre-requisites: being able to measure hand fibrosis in the hand, using clinical scores or imaging based scores, which will facilitate looking for associations with internal organ fibrosis using validated methodologies for each. Longitudinal studies would be essential in delineating fibrosis trajectories in those with hand manifestations. Since therapies reversing fibrosis are few, the onus lies on identification of a susceptible subset for preventative measures. If systematically validated, clinical hand examination could provide a low-cost, universally accessible and easily reproducible screening step in selecting patients for clinical trials for fibrosis in diabetes.
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- 2023
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5. Personalized medicine in India: Mirage or a viable goal?
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Somashree Chakraborty, Anisha Wagh, Pranay Goel, and Sanat Phatak
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india ,multi-omics ,personalized medicine ,precision medicine ,therapeutic decision making ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Personalized medicine refers to using individual patient characteristics including phenotype and genotype, to tailor the therapeutic strategy. This approach seeks to challenge the “one-size-fits-all” method to patient management. In the bargain, it reduces adverse drug reactions, improves compliance, and reduces the economic burden of disease management. Traditionally, as extrapolated from usage in oncology, the term applied to using genomic, metabolomic, and epigenomic data in selecting medications; however, even simpler data such as clinical phenotype can aid therapeutic decision making. Autoimmune diseases provide many such data points, owing to the multi-organ nature of clinical manifestations as well as the availability of a wide variety of tests for antibodies as well as cytokines. Rheumatologists already use personalization intuitively, based on various factors such as organ involvement, comorbidities, fertility concerns, and costs. However, in a literature search, few studies look at tailoring treatment regimens to individual characteristics. Building coherent databases can help in better analysis of data and answering locally relevant questions in the future.
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- 2022
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6. Vertical sleeve gastrectomy associates with airway hyperresponsiveness in a murine model of allergic airway disease and obesity
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Jack T. Womble, Mark D. Ihrie, Victoria L. McQuade, Akhil Hegde, Matthew S. McCravy, Sanat Phatak, Robert M. Tighe, Loretta G. Que, David D’Alessio, Julia K. L. Walker, and Jennifer L. Ingram
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asthma ,obesity ,sleeve gastrectomy ,bariatric surgery ,airway hyperresponsiveness ,airway inflammation ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
IntroductionAsthma is a chronic airway inflammatory disease marked by airway inflammation, remodeling and hyperresponsiveness to allergens. Allergic asthma is normally well controlled through the use of beta-2-adrenergic agonists and inhaled corticosteroids; however, a subset of patients with comorbid obesity experience resistance to currently available therapeutics. Patients with asthma and comorbid obesity are also at a greater risk for severe disease, contributing to increased risk of hospitalization. Bariatric surgery improves asthma control and airway hyperresponsiveness in patients with asthma and comorbid obesity, however, the underlying mechanisms for these improvements remain to be elucidated. We hypothesized that vertical sleeve gastrectomy (VSG), a model of metabolic surgery in mice, would improve glucose tolerance and airway inflammation, resistance, and fibrosis induced by chronic allergen challenge and obesity.MethodsMale C57BL/6J mice were fed a high fat diet (HFD) for 13 weeks with intermittent house dust mite (HDM) allergen administration to induce allergic asthma, or saline as control. At week 11, a subset of mice underwent VSG or Sham surgery with one week recovery. A separate group of mice did not undergo surgery. Mice were then challenged with HDM or saline along with concurrent HFD feeding for 1-1.5 weeks before measurement of lung mechanics and harvesting of tissues, both of which occurred 24 hours after the final HDM challenge. Systemic and pulmonary cytokine profiles, lung histology and gene expression were analyzed.ResultsHigh fat diet contributed to increased body weight, serum leptin levels and development of glucose intolerance for both HDM and saline treatment groups. When compared to saline-treated mice, HDM-challenged mice exhibited greater weight gain. VSG improved glucose tolerance in both saline and HDM-challenged mice. HDM-challenged VSG mice exhibited an increase in airway hyperresponsiveness to methacholine when compared to the non-surgery group.DiscussionThe data presented here indicate increased airway hyperresponsiveness in allergic mice undergoing bariatric surgery.
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- 2023
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7. Assistive devices: Regaining mobility in myositis
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Samira Davalbhakta, Akshay Oswal, and Sanat Phatak
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assistive devices ,muscle weakness ,myositis ,orthotics ,physical therapy ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Assistive devices (ADs) refer to external devices adapted to improve tasks and function. The common types of ADs include those improving mobility such as wheelchairs and walkers, positioning devices such as standing frames, custom-made devices (orthotics) such as fitted shoes and braces, and daily living devices. In inflammatory myositis, ADs are of utility in combating weakness, improving mobility, preventing and treating contractures, preventing falls, and assisting in daily chores. This narrative review looks at the evidence for the use of ADs in myositis and disorders with a similar pattern of muscle weakness (e.g., muscular dystrophy) subsequent to a literature search. A range of devices, from ankle orthoses to robotic exoskeletons, has been used in children with these diseases, and is part of the rehabilitation process. Evidence for their use in inflammatory myositis comes mainly from inclusion body myositis where progression is usual, and distal movement loss additionally affects functionality. In these patients, gait ADs and lower limb orthoses have been shown to be useful. Patient acceptability of these interventions is paramount in choosing the correct device and fit. An interaction of the treating rheumatologist with the physiatrist, the physical therapist, the occupational therapist, and the patient is paramount in ensuring compliance and benefit.
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- 2020
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8. Effectiveness and safety of generic tofacitinib in spondyloarthritis: A real‐world retrospective analysis from India
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Sanat Phatak, Aditya Khenat, Mansi Malandkar, and Sanjiv Amin
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Rheumatology - Published
- 2023
9. Biomarkers in scleroderma: Current status
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Latika Gupta, Sanat Phatak, and Sukesh Edavalath
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Biomarkers ,fibrosis ,systemic sclerosis ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Scleroderma is an autoimmune disease characterized by indolent obliterative vasculopathy and widespread fibrosis. The two main morphological manifestations of the disease overlap and may make it difficult to separate activity from damage. Many patients, especially those with the limited subset of the disease, have an indolent course without clear-cut inflammatory manifestations. There is a felt need for validated biomarkers, which can differentiate activity from damage, and yet be sensitive to change with therapy. Multiplex arrays of biomarkers have ushered an era of targeted or personalized medicine based on phenotypic characteristics in an individual.
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- 2017
10. Phosphodiesterase-5 inhibitors: Raynaud's and beyond
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Sanat Phatak, Sajal Ajmani, Vikas Agarwal, and Durga Prasanna Misra
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Fibrosis ,phosphodiesterase 5 inhibitors ,pulmonary hypertension ,Raynaud's phenomenon ,sildenafil ,tadalafil ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Phosphodiesterases (PDE) are a group of ubiquitously present enzymes involved in regulation of various cellular pathways. PDE5 acts to metabolize cyclic guanosine monophosphate (GMP). The various PDE5 inhibitors available are sildenafil, tadalafil, vardenafil, and mirodenafil. We shall discuss the roles of various PDE5 inhibitors in rheumatic diseases. PDE5 inhibitors prevent degradation of cyclic GMP; hence, they have vasodilatory properties which render them useful in the management of secondary Raynaud's phenomenon. They have also demonstrated efficacy in the healing of digital ulcers in systemic sclerosis and potentially prevent the formation of new digital ulcers. Their vasodilatory property has also been utilized in the management of pulmonary arterial hypertension, wherein their ability to favorably affect hemodynamics of a pressure-overloaded right heart is beneficial. Recent evidences have suggested a potential antifibrotic role of these agents, and studies in idiopathic pulmonary fibrosis and systemic sclerosis-associated interstitial lung disease hold promise for future exploration of these agents for these indications.
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- 2017
11. Diagnostic accuracy of antineutrophil cytoplasmic antibodies (ANCA) in predicting relapses of ANCA-associated vasculitis: systematic review and meta-analysis
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Mona Pathak, Anu Balakrishnan, Sakir Ahmed, Pankti Mehta, and Sanat Phatak
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Rheumatology ,Immunology ,Immunology and Allergy - Published
- 2022
12. High fatigue scores in patients with idiopathic inflammatory myopathies: a multigroup comparative study from the COVAD e-survey
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Silvia, Grignaschi, Minchul, Kim, Giovanni, Zanframundo, Naveen, Ravichandran, Lilleker, James B., Parikshit, Sen, Mrudula, Joshi, Vishwesh, Agarwal, Sinan, Kardes, Jessica, Day, Ashima, Makol, Marcin, Milchert, Tamer, Gheita, Babur, Salim, Tsvetelina, Velikova, Abraham Edgar Gracia-Ramos, Ioannis, Parodis, Elena, Nikiphorou, Tulika, Chatterjee, Ai Lyn Tan, Saavedra, Miguel A., Samuel Katsuyuki Shinjo, Nelly, Ziade, Johannes, Knitza, Masataka, Kuwana, Arvind, Nune, Oliver, Distler, Hector, Chinoy, Lorenzo, Cavagna, Vikas, Agarwal, Rohit, Aggarwal, Latika, Gupta, Bhupen, Barman, Yogesh Preet Singh, Rajiv, Ranjan, Avinash, Jain, Sapan, C Pandya, Rakesh Kumar Pilania, Aman, Sharma, M Manesh Manoj, Vikas, Gupta, Chengappa, G Kavadichanda, Pradeepta Sekhar Patro, Sajal, Ajmani, Sanat, Phatak, Rudra Prosad Goswami, Abhra Chandra Chowdhury, Ashish Jacob Mathew, Padnamabha, Shenoy, Ajay, Asranna, Keerthi Talari Bommakanti, Anuj, Shukla, Arunkumar, R Pande, Kunal, Chandwar, Döndü Üsküdar Cansu, John, D Pauling, Chris, Wincup, Nicoletta Del Papa, Gianluca, Sambataro, Atzeni, Fabiola, Marcello, Govoni, Simone, Parisi, Elena Bartoloni Bocci, Gian Domenico Sebastiani, Enrico, Fusaro, Marco, Sebastiani, Quartuccio, Luca, Franceschini, Franco, Pier Paolo Sainaghi, Giovanni, Orsolini, Rossella De Angelis, Maria Giovanna Danielli, Vincenzo, Venerito, Lisa, S Traboco, Suryo Anggoro Kusumo Wibowo, Jorge Rojas Serrano, Ignacio García-De La Torre, Erick Adrian Zamora Tehozol, Jesús, Loarce-Martos, Sergio, Prieto-González, Raquel Aranega Gonzalez, Akira, Yoshida, Ran, Nakashima, Shinji, Sato, Naoki, Kimura, Yuko, Kaneko, Stylianos, Tomaras, Margarita Aleksandrovna Gromova, Aharonov, Or, Ihsane, Hmamouchi, Leonardo Santos Hoff, Margherita, Giannini, François, Maurier, Julien, Campagne, Alain, Meyer, Melinda, Nagy-Vincze, Daman, Langguth, Vidya, Limaye, Merrilee, Needham, Nilesh, Srivastav, Marie, Hudson, Océane, Landon-Cardinal, Syahrul Sazliyana Shaharir, Wilmer Gerardo Rojas Zuleta, José António Pereira Silva, and João Eurico Fonseca
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Myositis ,Surveys and questionnaires ,Autoimmune diseases ,COVID-19 ,Fatigue - Published
- 2023
13. COVAD survey 2 long-term outcomes: unmet need and protocol
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Zoha Zahid Fazal, Parikshit, Sen, Mrudula, Joshi, Naveen, Ravichandran, Lilleker, James B., Vishwesh, Agarwal, Sinan, Kardes, Minchul, Kim, Jessica, Day, Ashima, Makol, Marcin, Milchert, Tamer, Gheita, Babur, Salim, Tsvetelina, Velikova, Abraham Edgar Gracia-Ramos, Ioannis, Parodis, Elena, Nikiphorou, Ai Lyn Tan, Tulika, Chatterjee, Lorenzo, Cavagna, Saavedra, Miguel A., Samuel Katsuyuki Shinjo, Nelly, Ziade, Albert, Selva-O’Callaghan, Arvind, Nune, Johannes, Knitza, Masataka, Kuwana, Carlos-Enrique Toro Gutiérrez, Carlo Vinicio Caballero-Uribe, Dzifa, Dey, Oliver, Distler, Hector, Chinoy, Vikas, Agarwal, Rohit, Aggarwal, Latika Gupta, COVAD Study Group: Barman, Yogesh Preet Singh, Rajiv, Ranjan, Avinash, Jain, Sapan, C Pandya, Rakesh Kumar Pilania, Aman, Sharma, Manesh Manoj, M, Vikas, Gupta, Chengappa, G Kavadichanda, Pradeepta Sekhar Patro, Sajal, Ajmani, Sanat, Phatak, Rudra Prosad Goswami, Abhra Chandra Chowdhury, Ashish Jacob Mathew, Padnamabha, Shenoy, Ajay, Asranna, Keerthi Talari Bommakanti, Anuj, Shukla, Arun Kumar, R Pandey, Prithvi Sanjeevkumar Gaur, Mahabaleshwar, Mamadapur, Akanksha, Ghodke, Kunal, Chandwar, Kshitij, Jagtap, Döndü Üsküdar Cansu, Reşit, Yıldırım, Aarat, Patel, John, D Pauling, Chris, Wincup, Margherita, Giannini, François, Maurier, Julien, Campagne, Alain, Meyer, Nicoletta Del Papa, Gianluca, Sambataro, Atzeni, Fabiola, Marcello, Govoni, Simone, Parisi, Elena Bartoloni Bocci, Gian Domenico Sebastiani, Enrico, Fusaro, Marco, Sebastiani, Quartuccio, Luca, Franceschini, Franco, Pier Paolo Sainaghi, Giovanni, Orsolini, Rossella De Angelis, Maria Giovanna Danielli, Vincenzo, Venerito, Silvia, Grignaschi, Alessandro, Giollo, Lisa, S Traboco, Syahrul Sazliyana Shaharir, Suryo Anggoro Kusumo Wibowo, Erick Adrian Zamora Tehozol, Jorge Rojas Serrano, Ignacio García-De La Torre, Colunga‑pedraza, Iris J., Javier, Merayo-Chalico, Jesús, Loarce-Martos, Sergio, Prieto-González, Albert, Gil-Vila, Raquel, Aranega, Leonardo Santos Hoff, Ran, Nakashima, Shinji, Sato, Naoki, Kimura, Yuko, Kaneko, Stylianos, Tomaras, Fabian Nikolai Proft, Marie-Therese, Holzer, Margarita Aleksandrovna Gromova, Aharonov, Or, Melinda, Nagy-Vincze, Zoltán, Griger, Ihsane, Hmamouchi, Pr Imane El bouchti, Zineb, Baba, Uyi, Ima-Edomwonyi, Ibukunoluwa, Dedeke, Emorinken, Airenakho, Nwankwo Henry Madu, Abubakar, Yerima, Hakeem, Olaosebikan, Okwara Celestine Chibuzo, Becky, A, Ouma Devi Koussougbo, Elisa, Palalane, Daman, Langguth, Vidya, Limaye, Merrilee, Needham, Nilesh, Srivastav, Marie, Hudson, Océane, Landon-Cardinal, Wilmer Gerardo Rojas Zuleta, Álvaro, Arbeláez, Javier, Cajas, José António Pereira Silva, João Eurico Fonseca, Olena, Zimba, Doskaliuk, Bohdana, Ho, So, Manuel Francisco Ugarte-Gil, Lyn, Chinchay, José Proaño Bernaola, Victorio, Pimentel, Tanveer Hasan, A. T. M., Sreoshy, Saha, Binit, Vaidya, Hanan Mohamed Fathi, Reem Hamdy, A Mohammed, Yi-Ming, Chen, Ghita, Harifi, Lina El Kibbi, Hussein Mohammed Halabi, Akawatcharangura, P, Wanruchada, Katchamart, Yurilís, Fuentes-Silva, Karoll, Cabriza, Jonathan, Losanto, Nelly, Colaman, Antonio, Cachafeiro-Vilar, Generoso Guerra Bautista, Enrique Julio Giraldo Ho, Raúl Agustín González, Lilith Stange Nunez, Cristian Vergara, M, Jossiell Then Báez, Hugo, Alonzo, Carlos Benito Santiago Pastelin, Rodrigo García Salinas, Alejandro Quiñónez Obiols, Nilmo, Chávez, Andrea Bran Ordóñez, Sandra, Argueta, Daniel, Quijivix, Gil Alberto Reyes Llerena, Radames, Sierra-Zorita, Dina, Arrieta, Eduardo Romero Hidalgo, Ricardo, Saenz, Idania Escalante, M., Roberto, Morales, Wendy, Calapaqui, Ivonne, Quezada, Gabriela, Arredondo, Institut Català de la Salut, [Fazal ZZ] Medical College, Aga Khan University Hospital, National Stadium Road, Sindh, Pakistan. [Sen P] Maulana Azad Medical College, 2-Bahadurshah Zafar Marg, New Delhi, India. [Joshi M] Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals, Pune, India. [Ravichandran N] Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. [Lilleker JB] Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, Centre for Musculoskeletal Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK. Neurology, Manchester Centre for Clinical Neurosciences, Northern Care Alliance NHS Foundation Trust, Salford, UK. [Agarwal V] Mahatma Gandhi Mission Medical College, Navi Mumbai, Maharashtra, India. [Selva-O'Callaghan A] Unitat d’Inflamació i Autoimmunitat, Servei de Medicina Interna, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain, and Vall d'Hebron Barcelona Hospital Campus
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Investigative Techniques::Epidemiologic Methods::Data Collection::Surveys and Questionnaires [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,Autoimmune diseases ,COVID-19 ,Long-term adverse effects ,Registries ,Vaccination ,COVID-19 Vaccines ,COVID-19/prevention & control ,Immunology ,Complex Mixtures::Biological Products::Vaccines::Viral Vaccines [CHEMICALS AND DRUGS] ,Otros calificadores::Otros calificadores::/efectos adversos [Otros calificadores] ,Enquestes ,Antiviral Agents ,Rheumatology ,Other subheadings::Other subheadings::/adverse effects [Other subheadings] ,virosis::infecciones por virus ARN::infecciones por Nidovirales::infecciones por Coronaviridae::infecciones por Coronavirus [ENFERMEDADES] ,Immunology and Allergy ,Humans ,Pandemics/prevention & control ,Vacunes - Efectes secundaris ,Pandemics ,Virus Diseases::RNA Virus Infections::Nidovirales Infections::Coronaviridae Infections::Coronavirus Infections [DISEASES] ,técnicas de investigación::métodos epidemiológicos::recopilación de datos::encuestas y cuestionarios [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] ,mezclas complejas::productos biológicos::vacunas::vacunas víricas [COMPUESTOS QUÍMICOS Y DROGAS] ,Long term adverse effects ,Covid-19 ,COVID-19 (Malaltia) - Vacunació ,COVID-19 Vaccines/adverse effects - Abstract
COVID-19; Registries; Vaccination COVID-19; Registros; Vacunación COVID-19; Registres; Vacunació Vaccine hesitancy is considered a major barrier to achieving herd immunity against COVID-19. While multiple alternative and synergistic approaches including heterologous vaccination, booster doses, and antiviral drugs have been developed, equitable vaccine uptake remains the foremost strategy to manage pandemic. Although none of the currently approved vaccines are live-attenuated, several reports of disease flares, waning protection, and acute-onset syndromes have emerged as short-term adverse events after vaccination. Hence, scientific literature falls short when discussing potential long-term effects in vulnerable cohorts. The COVAD-2 survey follows on from the baseline COVAD-1 survey with the aim to collect patient-reported data on the long-term safety and tolerability of COVID-19 vaccines in immune modulation. The e-survey has been extensively pilot-tested and validated with translations into multiple languages. Anticipated results will help improve vaccination efforts and reduce the imminent risks of COVID-19 infection, especially in understudied vulnerable groups. HC is supported by the National Institution for Health Research Manchester Biomedical Research Centre Funding Scheme. The views expressed in this publication are those of the authors and not necessarily those of the NHS, the National Institute for Health Research or the Department of Health.
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- 2022
14. Subgroups of patients with young-onset type 2 diabetes in India reveal insulin deficiency as a major driver
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Annemari Käräjämäki, Sanat Phatak, Banshi Saboo, Meet Shah, Rucha H. Wagh, Emma Ahlqvist, Rashmi B. Prasad, Anupam Datta, Olof Asplund, Malay Parikh, Sanjeeb Kakati, Leif Groop, Pooja Kunte, Tiinamaija Tuomi, Sharvari Rahul Shukla, Chittaranjan S. Yajnik, Dattatrey Bhat, Centre of Excellence in Complex Disease Genetics, HUS Abdominal Center, Institute for Molecular Medicine Finland, Tiinamaija Tuomi Research Group, University Management, CAMM - Research Program for Clinical and Molecular Metabolism, Endokrinologian yksikkö, and Leif Groop Research Group
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medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,India ,030209 endocrinology & metabolism ,Type 2 diabetes ,Article ,Nephropathy ,Young-onset type 2 diabetes ,03 medical and health sciences ,0302 clinical medicine ,Insulin resistance ,HYPERGLYCEMIA ,Diabetes mellitus ,Internal medicine ,Internal Medicine ,Medicine ,030304 developmental biology ,RISK ,0303 health sciences ,business.industry ,Subgroups ,HOMEOSTASIS MODEL ASSESSMENT ,medicine.disease ,Obesity ,Europe ,SIDD ,OBESITY ,3121 General medicine, internal medicine and other clinical medicine ,Cohort ,ADIPOSITY ,business ,Complication ,RESISTANCE ,Insulin deficiency - Abstract
Aim/hypothesis Five subgroups were described in European diabetes patients using a data driven machine learning approach on commonly measured variables. We aimed to test the applicability of this phenotyping in Indian individuals with young-onset type 2 diabetes. Methods We applied the European-derived centroids to Indian individuals with type 2 diabetes diagnosed before 45 years of age from the WellGen cohort (n = 1612). We also applied de novo k-means clustering to the WellGen cohort to validate the subgroups. We then compared clinical and metabolic-endocrine characteristics and the complication rates between the subgroups. We also compared characteristics of the WellGen subgroups with those of two young European cohorts, ANDIS (n = 962) and DIREVA (n = 420). Subgroups were also assessed in two other Indian cohorts, Ahmedabad (n = 187) and PHENOEINDY-2 (n = 205). Results Both Indian and European young-onset type 2 diabetes patients were predominantly classified into severe insulin-deficient (SIDD) and mild obesity-related (MOD) subgroups, while the severe insulin-resistant (SIRD) and mild age-related (MARD) subgroups were rare. In WellGen, SIDD (53%) was more common than MOD (38%), contrary to findings in Europeans (Swedish 26% vs 68%, Finnish 24% vs 71%, respectively). A higher proportion of SIDD compared with MOD was also seen in Ahmedabad (57% vs 33%) and in PHENOEINDY-2 (67% vs 23%). Both in Indians and Europeans, the SIDD subgroup was characterised by insulin deficiency and hyperglycaemia, MOD by obesity, SIRD by severe insulin resistance and MARD by mild metabolic-endocrine disturbances. In WellGen, nephropathy and retinopathy were more prevalent in SIDD compared with MOD while the latter had higher prevalence of neuropathy. Conclusions /interpretation Our data identified insulin deficiency as the major driver of type 2 diabetes in young Indians, unlike in young European individuals in whom obesity and insulin resistance predominate. Our results provide useful clues to pathophysiological mechanisms and susceptibility to complications in type 2 diabetes in the young Indian population and suggest a need to review management strategies. Graphical abstract
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- 2021
15. COVID-19 vaccine safety during the antenatal period in women with idiopathic inflammatory myopathies
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Andreoli, Laura, Parikshit, Sen, Lini, Daniele, Melinda Nagy Vincze, Karen, Schreiber, COVAD Study Group, Vikas, Agarwal, Rohit, Aggarwal, Latika Gupta The COVAD study group includes: Naveen, R, Mrudula, Joshi, Sreoshy, Saha, Kshitij, Jagtap, Lilleker, James B., Vishwesh, Agarwal, Sinan, Kardes, Jessica, Day, Marcin, Milchert, Tamer, Gheita, Babur, Salim, Tsvetelina, Velikova, Abraham Edgar Gracia-Ramos, Ioannis, Parodis, Elena, Nikiphorou, Tulika, Chatterjee, Ai Lyn Tan, Lorenzo, Cavagna, Saavedra, Miguel A., Samuel Katsuyuki Shinjo, Nelly, Ziade, Johannes, Knitza, Masataka, Kuwana, Arvind, Nune, Oliver, Distler, Hector, Chinoy, Ashima, Makol, Dzifa, Dey, Carlos Enrique Toro Gutie´rrez, Carlo Vinicio Caballero-Uribe, Bhupen, Barman, Yogesh Preet Singh, Rajiv, Ranjan, Avinash, Jain, Pandya, Sapan C., Rakesh Kumar Pilania, Aman, Sharma, Manesh, Manoj, Vikas, Gupta, Kavadichanda, Chengappa G., Pradeepta Sekhar Patro, Sajal, Ajmani, Sanat, Phatak, Rudra Prosad Goswami, Abhra Chandra Chowdhury, Ashish Jacob Mathew, Padnamabha, Shenoy, Ajay, Asranna, Keerthi Talari Bommakanti, Anuj, Shukla, Pande, Arunkumar R., Kunal, Chandwar, Akanksha, Ghodke, Zoha Zahid Fazal, Do¨ndu¨ U¨ sku¨ dar Cansu, Res¸it, Yıldırım, Aarat, Patel, Pauling, John D., Chris, Wincup, Armen Yuri Gasparyan, Nicoletta Del Papa, Gianluca, Sambataro, Atzeni, Fabiola, Marcello, Govoni, Simone, Parisi, Elena Bartoloni Bocci, Gian Domenico Sebastiani, Enrico, Fusaro, Marco, Sebastiani, Quartuccio, Luca, Franceschini, Franco, Pier Paolo Sainaghi, Giovanni, Orsolini, Rossella De Angelis, Maria Giovanna Danielli, Vincenzo, Venerito, Silvia, Grignaschi, Alessandro, Giollo, Alessia, Alluno, Florenzo, Ioannone, Marco, Fornaro, Lisa, S Traboco, Syahrul Sazliyana Shaharir, Suryo Anggoro Kusumo Wibowo, Erick Adrian Zamora Tehozol, Jorge Rojas Serrano, Ignacio Garc ıa-De La Torre, Colunga-Pedrazza, Iris J., Javier Merayo Chalico, Jesu´, s Loarce-Martos, Sergio Prieto-Gonza´ lez, Raquel Aranega Gonzalez, Leonardo Santos Hoff, Akira, Yoshida, Ran, Nakashima, Shinji, Sato, Naoki, Kimura, Yuko, Kaneko, Takahisa, Gono, Stylianos, Tomaras, Fabian Nikolai Proft, Marie-Therese, Holzer, Russka, Shumnalieva, Margarita Aleksandrovna Gromova, Aharonov, Or, Zolta´n, Griger, Ihsane, Hmamouchi, Imane El bouchti, Zineb, Baba, Margherita, Giannini, Franc¸ois, Maurier, Julien, Campagne, Alain, Meyer, Daman, Langguth, Vidya, Limaye, Merrilee, Needham, Nilesh, Srivastav, Marie, Hudson, Oce´ane, Landon-Cardinal, Wilmer Gerardo Rojas Zuleta, ´ lvaro Arbela´ez, A, Javier, Cajas, Jose´ Anto´nio Pereira Silva, Jo~ao Eurico Fonseca, Olena, Zimba, Doskaliuk, Bohdana, Uyi, Ima-Edomwonyi, Ibukunoluwa, Dedeke, Emorinken, Airenakho, Nwankwo Henry Madu, Abubakar, Yerima, Hakeem, Olaosebikan, Okwara Celestine Chibuzo, Becky, Adugna, Oruma Devi Koussougbo, Elisa, Palalane, Ho, So, Manuel Francisco Ugarte-Gil, Lyn, Chinchay, Jose´ Proa~no Bernaola, Victorio, Pimentel, Tanveer Hasan, A. T. M., Binit, Vaidya, Hanan Mohammed Fathi, Mohammed, Reem Hamdy A., Yi-Ming, Chen, Ghita, Harifi, Lina El Kibbi, Hussein Mohammed Halabi, Akawatcharangura, P., Wanruchada, Katchamart, Yuril ıs Fuentes-Silva, Karoll, Cabriza, Jonathan, Losanto, Nelly, Colaman, Antonio, Cachafeiro-Vilar, Generoso Guerra Bautista, Enrique Julio Giraldo Ho, Rau´, l Gonza´ lez, Lilith Stange Nunez, Cristian Vergara, M, Jossiell Then Ba´ez, Hugo, Alonzo, Carlos Benito Santiago Pastelin, Rodrigo Garc ıa Salinas, Alejandro Qui~no´nez Obiols, Nilmo, Cha´vez, Andrea Bran Ordo´ ~nez, Sandra, Argueta, Gil Alberto Reyes Llerena, Radames, Sierra-Zorita, Dina, Arrieta, Eduardo Romero Hidalgo, Ricardo, Saenz, Idania Escalante, M, Roberto, Morales, Wendy, Calapaqui, Ivonne, Quezada, and Gabriela, Arredondo
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Rheumatology ,Pharmacology (medical) - Published
- 2022
16. COVID-19 vaccination in autoimmune diseases (COVAD) study: vaccine safety and tolerance in rheumatoid arthritis
- Author
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Naveen, R, Ioannis, Parodis, Mrudula, Joshi, Parikshit, Sen, Julius, Lindblom, Vishwesh, Agarwal, James, B Lilleker, Ai Lyn Tan, Arvind, Nune, Samuel Katsuyuki Shinjo, Babur, Salim, Nelly, Ziade, Tsvetelina, Velikova, Abraham Edgar Gracia-Ramos, Miguel, A Saavedra, Jessica, Day, Ashima, Makol, Oliver, Distler, Hector, Chinoy, COVAD Study Group, Vikas Agarwal, Rohit Aggarwal, Latika, Gupta, Elena Nikiphorou The COVAD study group collaborators are: Bhupen Barman, Yogesh Preet Singh, Rajiv, Ranjan, Avinash, Jain, Pandya, Sapan C., Rakesh Kumar Pilania, Aman, Sharma, Manoj, M, Vikas, Gupta, Kavadichanda, Chengappa G., Pradeepta Sekhar Patro, Sajal, Ajmani, Sanat, Phatak, Rudra Prosad Goswami, Abhra Chandra Chowdhury, Ashish Jacob Mathew, Padnamabha, Shenoy, Ajay, Asranna, Keerthi Talari Bommakanti, Anuj, Shukla, Pandey, Arun Kumar R., Kunal, Chandwar, Sinan, Kardes¸, Do¨ndu¨ U¨ sku¨ dar Cansu, Minchul, Kim, Tulika, Chatterjee, Pauling, John D., Chris, Wincup, Lorenzo, Cavagna, Nicoletta Del Papa, Gianluca, Sambataro, Atzeni, Fabiola, Marcello, Govoni, Simone, Parisi, Elena Bartoloni Bocci, Gian Domenico Sebastiani, Enrico, Fusaro, Marco, Sebastiani, Quartuccio, Luca, Franceschini, Franco, Pier Paolo Sainaghi, Giovanni, Orsolini, Rossella De Angelis, Maria Giovanna Danielli, Vincenzo, Venerito, Marcin, Milchert, Traboco, Lisa S., Suryo Anggoro Kusumo Wibowo, Erick Adrian Zamora Tehozol, Jorge Rojas Serrano, Ignacio Garc ıa-De La Torre, Jesu´, s Loarce-Martos, Sergio Prieto-Gonza´ lez, Albert, Gil-Vila, Raquel Aranega Gonzalez, Masataka, Kuwana, Akira, Yoshida, Ran, Nakashima, Shinji, Sato, Naoki, Kimura, Yuko, Kaneko, Johannes, Knitza, Stylianos, Tomaras, Margarita Aleksandrovna Gromova, Aharonov, Or, Gheita, Tamer A., Ihsane, Hmamouchi, Leonardo Santos Hoff, Margherita, Giannini, Franc¸ois, Maurier, Julien, Campagne, Alain, Meyer, Melinda, Nagy-Vincze, Daman, Langguth, Vidya, Limaye, Merrilee, Needham, Nilesh, Srivastav, Marie, Hudson, Oce´ane, Landon-Cardinal, Syahrul Sazliyana Shaharir, Wilmer Gerardo Rojas Zuleta, Jose´ Anto´ nio Pereira Silva, Jo~ao Eurico Fonseca, and Olena, Zimba.
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rheumatoid arthritis ,Adverse effects ,COVID-19 ,autoimmune diseases ,vaccination ,Rheumatology ,Pharmacology (medical) - Abstract
Objectives The COVID-19 vaccination in autoimmune diseases (COVAD) study aimed to assess short-term COVID-19 vaccination-related adverse events (AEs) in RA patients. Methods An online self-reported questionnaire (March–December 2021) was used to capture data related to COVID-19 vaccination-related AEs in RA, other autoimmune rheumatic diseases (AIRDs) (excluding RA and inflammatory myositis), non-rheumatic autoimmune diseases (nrAIDs) and healthy controls (HCs). Descriptive and multivariable regression analyses were performed. Results Of the 9462 complete respondents, 14.2% (n = 1347) had been diagnosed with RA; they had a mean (s.d.) age of 50.7 (13.7) years, 74.2% were women and 49.3% were Caucasian. In total, 76.9% and 4.2% of patients with RA reported minor and major AEs, respectively. Patients with active and inactive RA had similar AE and hospitalization frequencies. Overall, AEs were reported more frequently by BNT162b2 and mRNA-1273 recipients and less frequently by BBV152 recipients compared with the rest. Major AE and hospitalization frequencies were similar across recipients of different vaccines. Patients receiving methotrexate and hydroxychloroquine reported fewer minor AEs than those patients not on them. Compared with HCs and patients with other AIRDs, patients with RA reported similar total AEs, overall minor AEs, and hospitalizations. Compared with nrAIDs, patients with RA reported lower frequencies of overall AEs, minor AEs (both odds ratio [OR] = 0.7; 95% CI: 0.5, 0.9), and injection site pain (OR = 0.6; 95% CI: 0.5, 0.8) with similar major AE and hospitalization frequencies. Conclusion Despite the differences in AE frequency across different COVID-19 vaccines, all were well tolerated in patients with RA and were comparable to HCs, providing reassurance as to the safety of COVID-19 vaccination.
- Published
- 2022
17. Serial visualization of Glucose-insulin metabolism in thin young Indians with prediabetes reveals early failure of beta cell secretion in relation to decreasing insulin sensitivity
- Author
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Pradeep Tiwari, Sanat Phatak, Souvik Bandopadhyay, Tavpritesh Sethi, Caroline HD Fall, and Chittaranjan Yajnik
- Abstract
Background & ObjectiveDefective beta cell function in relation to impaired insulin sensitivity results in glucose intolerance. There are few studies documenting the lifecourse evolution of this relationship. The Pune Maternal Nutrition Study (PMNS) longitudinal birth cohort offered the opportunity to document these parameters from childhood in young, rural prediabetic participants and compare them to normal glucose tolerant (NGT).MethodsPMNS subjects were classified as NGT or Glucose intolerant according to their OGTT results at 18 years of age. Insulin Sensitivity (HOMA-S) and β-cell function (HOMA-β) were estimated at 6,12 and 18 years. Their inter-relationship was estimated using HOMA-β as a nonlinear function of HOMA-S, separately for NGT and Glucose intolerant individuals at 6,12 and 18 years. Rates of change of HOMA-S and HOMA-β were estimated using a linear mixed effect model and visualized using LOESS plots.ResultOf 619 participants, 177 had glucose intolerance at 18 years of age. A nonlinear hyperbolic relationship between HOMA-S and HOMA-B was observed at all time points. There was a progressive fall in HOMA-S and rise in HOMA-B with increasing age. Glucose intolerant participants had lower HOMA-B for all levels of HOMA-S as compared to NGT, manifesting as shift towards the origin in the hyperbolic curve.ConclusionWe provide evidence for early life dysregulation in glucose insulin metabolism leading to pre-diabetes at 18 years of age. Prediabetic individuals started with lower beta cell function and lower insulin sensitivity from an early age. Diabetes prevention should start from early life.
- Published
- 2022
18. Efficacy of B12 Fortified Nutrient Bar and Yogurt in Improving Plasma B12 Concentrations—Results From 2 Double-Blind Randomized Placebo Controlled Trials
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Pallavi C. Yajnik, Chittaranjan S. Yajnik, Vaishali Kantikar, Dattatray S. Bhat, Nilam Memane, Deepa A. Raut, Aboli Bhalerao, Sudhir Kumar Tomar, Sanat Phatak, Tejas Limaye, Sonal Kasture, Himangi Lubree, and Rasika Ladkat
- Subjects
0303 health sciences ,medicine.medical_specialty ,Nutrition and Dietetics ,030309 nutrition & dietetics ,business.industry ,Geography, Planning and Development ,030209 endocrinology & metabolism ,Placebo ,Dietary vitamin ,Asymptomatic ,Gastroenterology ,law.invention ,Double blind ,03 medical and health sciences ,0302 clinical medicine ,Nutrient ,Randomized controlled trial ,law ,Internal medicine ,Medicine ,medicine.symptom ,business ,Food Science - Abstract
Background: Dietary vitamin B12 (B12) deficiency is common in Indians. Long-term compliance to tablet supplementation is poor in asymptomatic individuals. Objective: To study efficacy of B12 fortified nutrient bar and yogurt in improving plasma B12 concentrations in children and adults. Methods: Two double-blind, placebo-controlled directly observed therapy randomized controlled trials were conducted for 120 days: (1) Healthy children (10-13 years) were fed nutrient bar fortified with B12 (2 μg), multiple micronutrients B12 (1.8 μg) or placebo. (2) Healthy adults (18-50 years) were fed yogurt fortified with B12 (2 μg) or Propionibacterium (1 × 108 cfu/g) or placebo. B12, folate, homocysteine, and hemoglobin concentrations were measured before and post intervention. Results: We randomized 164 children and 118 adults; adherence was 96% and 82%, respectively. In children, B12 fortified bars increased B12 concentrations significantly above baseline (B12 alone +91 pmol/L, B12+ multiple micronutrients +82 pmol/L) compared to placebo. In adults, B12 fortified yogurt increased B12 significantly (+38 pmol/L) but Propionibacterium and placebo did not. In both trials, homocysteine fell significantly with B12 supplementation. Rise of B12 and fall of homocysteine were influenced by dose of B12 and folic acid. There was no significant difference in change of anthropometry and hemoglobin between groups. Conclusions: B12 fortified foods are effective in improving B12 status in Indian children and adults. They could be used to improve B12 status in the national programs for children, adolescents, and women of reproductive age. They could also be used as over-the-counter products.
- Published
- 2021
19. COVID-19 and thrombotic microangiopathies
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Sanjay K. Agarwal, Vivek R. Sharma, Nishant R Tiwari, and Sanat Phatak
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medicine.medical_specialty ,Thrombotic microangiopathy ,Coronavirus disease 2019 (COVID-19) ,Disease ,030204 cardiovascular system & hematology ,Vascular injury ,Article ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,Thrombotic Microangiopathies ,Intensive care medicine ,Complement Activation ,SARS-CoV-2 ,business.industry ,Critically ill ,COVID-19 ,Thrombosis ,C5 inhibition ,Hematology ,medicine.disease ,Pathophysiology ,030220 oncology & carcinogenesis ,business ,Cytokine storm - Abstract
Severe COVID-19 can manifest as multiorgan dysfunction with pulmonary involvement being the most common and prominent. As more reports emerge in the literature, it appears that an exaggerated immune response in the form of unfettered complement activation and a cytokine storm may be a key driver of the widespread organ injury seen in this disease. In addition, these patients are also known to be hypercoagulable with a high rate of thrombosis and a higher-than-expected failure rate of anticoagulation. While macrovascular thrombosis is common in these individuals, the frequent finding of extensive microvascular thromboses in several series and case reports, raises the possibility of thrombotic microangiopathy (TMA) as being a contributing factor in the thrombotic and multi-organ complications of the disease. If this is correct, rapidly identifying a TMA and treating the underlying pathophysiology may allow for better outcomes in these critically ill patients. To further explore this, we reviewed the published literature on COVID-19, looking for reports describing TMA-like presentations. We summarize our findings here along with a discussion about presentation, pathophysiology, and a suggested treatment algorithm.
- Published
- 2021
20. Real-World Evidence of the Effectiveness and Safety of Generic Tofacitinib in Rheumatoid Arthritis Patients: A Retrospective, Single-Centre Analysis from Western India
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Sanat Phatak, Aditya Khenat, Mansi Malandkar, and Sanjiv Amin
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COVID-19 ,India ,General Medicine ,Middle Aged ,Arthritis, Rheumatoid ,Pyrimidines ,Treatment Outcome ,Piperidines ,Rheumatology ,Antirheumatic Agents ,Humans ,Female ,Pyrroles ,Protein Kinase Inhibitors ,Retrospective Studies - Abstract
BackgroundGeneric tofacitinib has been available in India for more than a year and is widely used in rheumatoid arthritis (RA) therapy. There is scarce real-world data on its effectiveness and safety from India, especially given infection endemicity.MethodsWe retrospectively analysed records (demographic and clinical information, haematology and biochemistry, adverse events) of patients prescribed generic tofacitinib from a single centre in Mumbai, India. Disease activity was calculated using the disease activity score-28 and erythrocyte sedimentation rate (DAS28-ESR) and other tools, and we used paired T-tests for significant response. We defined clinical tofacitinib failure as a composite outcome, including clinician’s decision to change to an alternative disease-modifying anti-rheumatic drug (DMARD) or flare after self-withdrawal. We performed logistic regression and survival analysis for determinants of clinical failure.ResultsWe reviewed records of 102 patients (92 female; median age: 53 years) with mean RA duration of 146 months. Thirteen had prior treatment with innovator tofacitinib. There was significant improvement in disease activity parameters at a mean duration of 186 days. No serious adverse events were reported; 4 patients had tuberculosis and 19 patients had mild COVID-19 while on treatment. Clinical failure was seen in 25 patients, and mean time to failure on survival analysis was 357 days. No baseline characteristic predicted clinical failure.InterpretationGeneric tofacitinib showed good effectiveness and a tolerable adverse effect profile, despite tuberculosis endemicity andCOVID-19.. Setting up registries would be valuable in gaining more data on generic tofacitinib.Key points-There is scarce data from India regarding the use of tofacitinib in rheumatoid arthritis, despite widespread use-In this retrospective analysis of 102 patients at a single centre, we found tofacitinib monotherapy was efficacious and tolerable.-Tuberculosis was detected in four and nineteen patients had mild covid.
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- 2022
21. Nuclear magnetic resonance–based targeted profiling of urinary acetate and citrate following cyclophosphamide therapy in patients with lupus nephritis
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Nikhil Gupta, Sujata Ganguly, Sandeep Kumar, Anupam Guleria, Smriti Chaurasia, Dinesh Kumar, Sanat Phatak, Sanjukta Majumdar, Ramnath Misra, Umesh Kumar, and Amita Aggarwal
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Adult ,Male ,0301 basic medicine ,Magnetic Resonance Spectroscopy ,Urinary system ,Lupus nephritis ,Urine ,Acetates ,Kidney Function Tests ,Severity of Illness Index ,Citric Acid ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Metabolomics ,Rheumatology ,medicine ,Humans ,In patient ,Cyclophosphamide therapy ,Cyclophosphamide ,030203 arthritis & rheumatology ,business.industry ,Induction Chemotherapy ,medicine.disease ,Lupus Nephritis ,030104 developmental biology ,Case-Control Studies ,Cancer research ,Female ,business ,Nephritis ,Reprogramming ,Biomarkers - Abstract
Objective Metabolomics, the study of global alterations in small metabolites, is a useful tool to look for novel biomarkers. Recently, we reported a reprogramming of the serum metabolomic profile by nuclear magnetic resonance (NMR) spectroscopy following treatment in lupus nephritis (LN). This study aimed to compare the urine excretory levels of citrate and acetate in patients with biopsy-proven LN before and six months after cyclophosphamide induction therapy and to evaluate their correlation with the Systemic Lupus Erythematosus Disease Activity Index 2K (SLEDAI 2K) and renal SLEDAI. Methods Urine obtained from LN patients ( N = 18, 16 female) at diagnosis and six months following induction therapy with cyclophosphamide and healthy controls (HC; N = 18, median age = 35 years, all female) were stored at –80°C. Metabolomic profiling was done using high resolution 800 MHz 1D 1H NMR spectroscopy. The urinary ratio of metabolites was calculated as (metabolite×1000)/creatinine. Disease activity was measured using the SLEDAI. Metabolomic profiles were compared between groups and correlated with clinical parameters. Results Compared to HC, LN patients had significantly lower median urinary citrate/creatinine levels (LN = 18.26, range 12.80–27.62; HC = 107.7, range 65.39–138.4; p Conclusions Urinary citrate, which reflects dampened aerobic glycolysis and oxidative phosphorylation, improved significantly and is a potential non-invasive biomarker for diagnosis and monitoring treatment response in LN.
- Published
- 2020
22. Higher risk of short term COVID-19 vaccine adverse events in myositis patients with autoimmune comorbidities: results from the COVAD study
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Mrinalini, Dey, Naveen, R, Elena, Nikiphorou, Parikshit, Sen, Sreoshy, Saha, James, B Lilleker, Vishwesh, Agarwal, Sinan, Kardes, Jessica, Day, Marcin, Milchert, Mrudula, Joshi, Tamer, Gheita, Babur, Salim, Tsvetelina, Velikova, Abraham Edgar Gracia-Ramos, Ioannis, Parodis, Albert Selva O'Callaghan, Minchul, Kim, Tulika, Chatterjee, Ai Lyn Tan, Ashima, Makol, Arvind, Nune, Lorenzo, Cavagna, Miguel, A Saavedra, Samuel Katsuyuki Shinjo, Nelly, Ziade, Johannes, Knitza, Masataka, Kuwana, Oliver, Distler, Bhupen, Barman, Yogesh Preet Singh, Rajiv, Ranjan, Avinash, Jain, Sapan, C Pandya, Rakesh Kumar Pilania, Aman, Sharma, Manesh, Manoj, Vikas, Gupta, Chengappa, G Kavadichanda, Pradeepta Sekhar Patro, Sajal, Ajmani, Sanat, Phatak, Rudra Prosad Goswami, Abhra Chandra Chowdhury, Ashish Jacob Mathew, Padnamabha, Shenoy, Ajay, Asranna, Keerthi Talari Bommakanti, Anuj, Shukla, Arunkumar, R Pande, Kunal, Chandwar, John, D Pauling, Chris, Wincup, Döndü Üsküdar Cansu, Erick Adrian Zamora Tehozol, Jorge Rojas Serrano, Ignacio García-De La Torre, Nicoletta Del Papa, Gianluca, Sambataro, Fabiola, Atzeni, Marcello, Govoni, Simone, Parisi, Elena Bartoloni Bocci, Gian Domenico Sebastiani, Enrico, Fusaro, Marco, Sebastiani, Quartuccio, Luca, Franceschini, Franco, Pier Paolo Sainaghi, Giovanni, Orsolini, Rossella De Angelis, Maria Giovanna Danielli, Vincenzo, Venerito, Lisa, S Traboco, Leonardo Santos Hoff, Suryo Anggoro Kusumo Wibowo, Stylianos, Tomaras, Daman, Langguth, Vidya, Limaye, Merrilee, Needham, Nilesh, Srivastav, Akira, Yoshida, Ran, Nakashima, Shinji, Sato, Naoki, Kimura, Yuko, Kaneko, Jesús, Loarce-Martos, Sergio, Prieto-González, Albert, Gil-Vila, Raquel Arànega Gonzalez, Hector, Chinoy, Vikas, Agarwal, Rohit, Aggarwal, Latika, Gupta, and COVAD Study Group
- Published
- 2022
23. Remote intracranial granulomas in granulomatosis with polyangiitis
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Sanat Phatak, Yogeshwari Deshmukh, Gayatri Ekbote, Niranjan Ambekar, and Valentine Lobo
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Rheumatology - Published
- 2022
24. Correction to: Subgroups of patients with young-onset type 2 diabetes in India reveal insulin deficiency as a major driver
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Sanat Phatak, Pooja Kunte, Leif Groop, Sanjeeb Kakati, Rashmi B. Prasad, Malay Parekh, Meet Shah, Emma Ahlqvist, Anupam Datta, Olof Asplund, Annemari Käräjämäki, Tiinamaija Tuomi, Banshi Saboo, Rucha H. Wagh, Chittaranjan S. Yajnik, Dattatrey Bhat, and Sharvari Rahul Shukla
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Pediatrics ,medicine.medical_specialty ,business.industry ,Insulin deficiency ,Endocrinology, Diabetes and Metabolism ,Young onset ,MEDLINE ,Correction ,India ,Type 2 diabetes ,medicine.disease ,Diabetes Mellitus, Type 2 ,Internal Medicine ,Medicine ,Humans ,Insulin ,Obesity ,Insulin Resistance ,business - Abstract
Five subgroups were described in European diabetes patients using a data driven machine learning approach on commonly measured variables. We aimed to test the applicability of this phenotyping in Indian individuals with young-onset type 2 diabetes.We applied the European-derived centroids to Indian individuals with type 2 diabetes diagnosed before 45 years of age from the WellGen cohort (n = 1612). We also applied de novo k-means clustering to the WellGen cohort to validate the subgroups. We then compared clinical and metabolic-endocrine characteristics and the complication rates between the subgroups. We also compared characteristics of the WellGen subgroups with those of two young European cohorts, ANDIS (n = 962) and DIREVA (n = 420). Subgroups were also assessed in two other Indian cohorts, Ahmedabad (n = 187) and PHENOEINDY-2 (n = 205).Both Indian and European young-onset type 2 diabetes patients were predominantly classified into severe insulin-deficient (SIDD) and mild obesity-related (MOD) subgroups, while the severe insulin-resistant (SIRD) and mild age-related (MARD) subgroups were rare. In WellGen, SIDD (53%) was more common than MOD (38%), contrary to findings in Europeans (Swedish 26% vs 68%, Finnish 24% vs 71%, respectively). A higher proportion of SIDD compared with MOD was also seen in Ahmedabad (57% vs 33%) and in PHENOEINDY-2 (67% vs 23%). Both in Indians and Europeans, the SIDD subgroup was characterised by insulin deficiency and hyperglycaemia, MOD by obesity, SIRD by severe insulin resistance and MARD by mild metabolic-endocrine disturbances. In WellGen, nephropathy and retinopathy were more prevalent in SIDD compared with MOD while the latter had higher prevalence of neuropathy.Our data identified insulin deficiency as the major driver of type 2 diabetes in young Indians, unlike in young European individuals in whom obesity and insulin resistance predominate. Our results provide useful clues to pathophysiological mechanisms and susceptibility to complications in type 2 diabetes in the young Indian population and suggest a need to review management strategies.
- Published
- 2021
25. Poor In Utero Growth and Reduced β-Cell Compensation and High Fasting Glucose from Childhood Are Harbingers of Glucose Intolerance in Young Indians
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Aboli Bhalerao, Clive Osmond, Pallavi C. Yajnik, Chittaranjan S. Yajnik, Anand Pandit, Dattatray S. Bhat, Souvik Bandopadhyay, Kalyanaraman Kumaran, Kurus Coyaji, Sanat Phatak, Caroline H.D. Fall, Rucha H. Wagh, and Sheila Bhave
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Blood Glucose ,Male ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,India ,Physiology ,Type 2 diabetes ,Pregnancy ,Diabetes mellitus ,Glucose Intolerance ,Internal Medicine ,medicine ,Humans ,Insulin ,Prediabetes ,Young adult ,Child ,Advanced and Specialized Nursing ,business.industry ,Fasting ,Glucose Tolerance Test ,medicine.disease ,Malnutrition ,Glucose ,Diabetes Mellitus, Type 2 ,Female ,Insulin Resistance ,Underweight ,medicine.symptom ,business - Abstract
OBJECTIVE India is a double world capital of early-life undernutrition and type 2 diabetes. We aimed to characterize life course growth and metabolic trajectories in those developing glucose intolerance as young adults in the Pune Maternal Nutrition Study (PMNS). RESEARCH DESIGN AND METHODS PMNS is a community-based intergenerational birth cohort established in 1993, with serial information on parents and children through pregnancy, childhood, and adolescence. We compared normal glucose-tolerant and glucose-intolerant participants for serial growth, estimates of insulin sensitivity and secretion (HOMA and dynamic indices), and β-cell compensation accounting for prevailing insulin sensitivity. RESULTS At 18 years (N = 619), 37% of men and 20% of women were glucose intolerant (prediabetes n = 184; diabetes n = 1) despite 48% being underweight (BMI CONCLUSIONS Inadequate compensatory insulin secretory response to decreasing insulin sensitivity in early life is the major pathophysiology underlying glucose intolerance in thin rural Indians. Smaller birth size, maternal pregnancy hyperglycemia, and higher glycemia from childhood herald future glucose intolerance, mandating a strategy for diabetes prevention from early life, preferably intergenerationally.
- Published
- 2021
26. Efficacy of B
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Chittaranjan, Yajnik, Sonal, Kasture, Vaishali, Kantikar, Himangi, Lubree, Dattatray, Bhat, Deepa, Raut, Nilam, Memane, Aboli, Bhalerao, Rasika, Ladkat, Pallavi, Yajnik, Sudhir, Tomar, Tejas, Limaye, and Sanat, Phatak
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Adult ,Vitamin B 12 ,Folic Acid ,Adolescent ,Double-Blind Method ,Food, Fortified ,Humans ,Female ,Micronutrients ,Child ,Yogurt - Abstract
Dietary vitamin BTo study efficacy of BTwo double-blind, placebo-controlled directly observed therapy randomized controlled trials were conducted for 120 days: (1) Healthy children (10-13 years) were fed nutrient bar fortified with BWe randomized 164 children and 118 adults; adherence was 96% and 82%, respectively. In children, BB
- Published
- 2021
27. Overweight-Obesity And Glucose Intolerance In Offspring Of Indian Diabetic Mothers
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Sonali S. Wagle, Sanat Phatak, Shubha Ambardekar, Bhat Dattatrey, Madhura K. Deshmukh, Rajashree Kamat, Sayali Wadke, Shivani Rangnekar, Rasika Ladkat, Kalyanaraman Kumaran, Pallavi C. Yajnik, and Chittaranjan S. Yajnik
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Type 1 diabetes ,medicine.medical_specialty ,Diabetes risk ,business.industry ,Offspring ,nutritional and metabolic diseases ,Type 2 diabetes ,medicine.disease ,Obesity ,Endocrinology ,Diabetes mellitus ,Internal medicine ,Homeostatic model assessment ,medicine ,business ,Glycemic - Abstract
AimsMaternal diabetes in pregnancy increases offspring obesity and diabetes risk. We investigated body size and composition, and glucose tolerance in offspring born to Indian diabetic mothers (ODM) and to non-diabetic mothers (ONDM), and studied maternal and paternal determinants.MethodsWe compared the physical characteristics, body composition (Dual energy X-ray Absorptiometry) and glycemia of ODMs and matched ONDMs. Overweight-obesity was defined using International Obesity Task Force (IOTF) for 2-18 years (cutoff of BMI > 25 kg/m2) and World Health Oraganization (WHO) criteria for >18 years (BMI > 25 kg/m2). Glycemic measures included capillary blood glucose measurement in children =10 years. We calculated separate SD scores for capillary fasting, capillary random and venous fasting plasma glucose. Those above median SD score were classified as glucose intolerant. We evaluated insulin sensitivity (Homeostatic Model Assessment HOMA-S and Matsuda index), beta cell function (HOMA-β and insulinogenic index) and β-cell compensatory response (Disposition Index: [Log (Insulinogenic index) + Log (Matsuda index)]). We studied the association of maternal and paternal body size and glycemia with outcomes in the child.ResultsWe studied 200 ODMs of 176 diabetic mothers (133 GDM, 21 type 2 diabetes, 22 type 1 diabetes), and 177 ONDMs at an average of 9.7 years after delivery. ODMs were heavier, more adipose and more glucose intolerant than ONDMs. Differences for body size parameters were more prominent in males and they also had a wider spectrum of metabolic abnormalities. Three (4%) ODM were receiving treatment for diabetes (diagnosed between 10-25 years of age). On OGTT, the older ODMs (>= 10 years) had higher prevalence of glucose intolerance (1 DM, 14 IFG, 12 IGT and 4 both IFG and IGT) compared to ONDM, (0 DM, 7 IFG, 9 IGT and 1 both IFG and IGT). None of the diabetic and pre-diabetic ODMs, including children of type 1 diabetic mothers, were positive for circulating GAD or ZnT8 antibodies.Younger ODMs (Type 2 diabetic and GDM mothers were heavier compared to type 1 diabetic mothers, and their children were more likely to be overweight-obese. Children of type 1 diabetic mothers were glucose intolerant despite lack of overweight-obesity. In addition, fathers had an independent influence on the child’s phenotype, especially for overweight-obesity. Maternal hyperglycemia during pregnancy had an overriding influence on offspring glucose intolerance.ConclusionsODMs were more overweight-obese and glucose intolerant compared to ONDMs. We propose that these two outcomes in the ODMs are independently programmed by respective parental phenotypes. Preventive strategies will need to be informed by these findings. Studies of genetic and epigenetic mechanisms involved in fetal programming of body size and glycemia will further help our understanding.Research in ContextWhat is already known about this subject?India has experienced a rapid escalation of diabetes in young individuals including diabetes in pregnancy. Short-term effects of maternal hyperglycemia on the offspring are well known.What is the key question?There is little data on long-term effects of maternal hyperglycemia on offspring body size and cardiometabolic risk factors. We compared these in the offspring of diabetic mothers compared to those of non-diabetic mothers. We also sought differences within types of diabetes (type 1, type 2, GDM) and studied paternal determinants of these outcomes.What are the new findings?Type 1 diabetic mothers were thinnest and most hyperglycemic; type 2 diabetic mothers were most overweight-obese, GDM mothers were intermediate. Gestational maternal hyperglycemia was the overriding determinant of offspring hyperglycemia. Maternal hyperglycemia predicted offspring glucose intolerance but not overweight obesity; maternal overweight-obesity predicted offspring overweight-obesity but not hyperglycemia, suggesting an uncoupling of these phenotypes often considered congruent. Fathers had an additive influence on offspring size.How might this impact on clinical practice in the foreseeable future?Knowing the relative independence of influences on body size and metabolic outcomes will inform strategies of their primordial and primary prevention. Establishing genetic and epigenetic mechanisms will help.
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- 2021
28. High rates of diabetes and pre-diabetes in postpartum period in Indian GDM women
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Sanat Phatak, S Yajnik Chittaranjan, S Wagle Sonali, S Ladkat Rasika, S Bhat Dattatray, R Shukla Sharvari, G Lubree Himangi, D Kale Shailaja, S Memane Nilam, and K Meenakumari
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High rate ,medicine.medical_specialty ,Pregnancy ,Waist ,endocrine system diseases ,Obstetrics ,business.industry ,Offspring ,nutritional and metabolic diseases ,medicine.disease ,Pre diabetes ,Diabetes mellitus ,medicine ,Family history ,business ,Postpartum period - Abstract
AimTo investigate postpartum glucose intolerance in South Asian Indian GDM women within 1 year of delivery.MethodsBetween 2001-2005, 220 women were treated for GDM at the Diabetes Unit, King Edward Memorial Hospital, Pune. GDM was diagnosed by 75g OGTT [WHO 1999 pregnancy criteria]. OGTT was repeated 3 months to 1 year postpartum. One hundred and nineteen non-GDM women were also studied.ResultsOf 220 GDM women [30years, BMI 26.0kg/m2] 9 women continued to be diabetic after delivery and a further 111 attended OGTT within one year of delivery. Two had IFG, 16 IGT and 23 diabetes [WHO 1999], thus 50[42%] women were glucose intolerant. Of the non-GDM, 1 had IFG, 8 IGT and 3 diabetes (10% glucose intolerant). Those who were hyperglycemic at follow up had stronger family history of diabetes [64% vs. 58%], were shorter [154.6 vs. 156.5cm], had higher FPG concentrations during pregnancy [5.27 vs. 4.99 mmol/L], and higher BMI [26.3 vs.25.0kg/m2] and waist circumference [88.0 vs. 82.3cm] at follow up compared to normoglycemic women. Hyperglycemia was not associated with GAD antibody positivity (4 vs 3 in normoglycemic).ConclusionWe describe one of the highest rates of postpartum hyperglycemia within a short time after delivery in young urban GDM women from India. Majority of risk factors for GDM were present from before pregnancy, and we propose that metabolic disturbances were also likely present. This has implications for peri-conceptional epigenetic programming of diabetes in the offspring. Pre-pregnancy screening and treatment of glucose intolerance and its risk factors in the high-risk populations could be an important measure for primordial prevention of diabetes.Key messagesWe describe one of the highest rates of postpartum hyperglycemia in young urban GDM women from India within a short time after delivery.Our results invite further research and policy discussion for screening and treatment of glucose intolerance before pregnancy in high-risk populations.
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- 2021
29. Efficacy of B12 fortified nutrient bar and yogurt in improving plasma B12 concentrations – results from two double blind randomised placebo controlled trials
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Aboli Bhalerao, Sonal Kasture, Dattatray S. Bhat, Tejas Limaye, Himangi Lubree, Pallavi C. Yajnik, Rasika Ladkat, Chittaranjan S. Yajnik, Sudhir Kumar Tomar, Sanat Phatak, Deepa A. Raut, Nilam Memane, and Vaishali Kantikar
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medicine.medical_specialty ,Homocysteine ,business.industry ,Offspring ,Anthropometry ,Placebo ,Micronutrient ,Gastroenterology ,chemistry.chemical_compound ,chemistry ,Internal medicine ,medicine ,Over-the-counter ,Vitamin B12 ,Fortified Food ,business - Abstract
BackgroundDietary vitamin B12 (B12) deficiency is common in Indians. It may affect hematologic and neurocognitive systems and maternal deficiency predisposes offspring to neural tube defects and non-communicable disease. Long-term tablet supplementation is not sustainable.ObjectiveTo study efficacy of B12 fortified nutrient bar and yogurt in improving plasma B12 concentrations in children and adults.MethodsTwo double-blind, placebo-controlled randomised directly observed therapy (DOT) trials were conducted: 1. Healthy children (10–13Y) were fed nutrient bar fortified with B12 (2 mcg), multiple micronutrients (B12 1.8 mcg) or placebo for 120 days. 2. Healthy adults (18–50Y) were fed yogurt fortified with B12 (2 mcg) or Propionibacterium (1×108cfu/g) or placebo for 120 days. B12, folate, homocysteine and hemoglobin concentrations and anthropometry were measured before and post intervention.ResultsWe randomised 164 children and 118 adults; adherence was 96% and 82% respectively. In children, B12 fortified bars increased B12 concentrations significantly above baseline (B12 alone: median +91 pmol/l, B12+ multiple micronutrients: +82 pmol/l) compared to placebo. In adults, B12 fortified yogurt increased B12 significantly (median +38 pmol/l) compared to placebo, but Propionibacterium did not. In both trials, homocysteine fell significantly with B12 supplementation. There was no significant difference in different groups in anthropometry and hemoglobin.ConclusionsB12 fortified foods are effective in improving B12 status in Indian children and adults. They could be used to improve vitamin B12 status in the national programs for children, adolescents and women of reproductive age. They could also be used as over the counter products.Brief HighlightsVitamin B12 deficiency is common in India. Culturally acceptable fortified foods will help reduce it. We performed two RCTs (children and adults) with B12 fortified nutrient bar and yogurt at near RDA doses and found significant improvement in B12 status. This has important implications for nutritional policy.
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- 2021
30. COVID-19 vaccination in autoimmune disease (COVAD) survey protocol
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Parikshit, Sen, Latika, Gupta, James, B Lilleker, Vishwesh, Aggarwal, Sinan, Kardes, Marcin, Milchert, Tamer, Gheita, Babur, Salim, Tsvetelina, Velikova, Abraham Edgar Gracia-Ramos, Ioannis, Parodis, Albert Selva O'Callaghan, Elena, Nikiphorou, Ai Lyn Tan, Lorenzo, Cavagna, Miguel, A Saavedra, Samuel Katsuyuki Shinjo, Nelly, Ziade, Johannes, Knitza, Masataka, Kuwana, Giovanni, Cagnotto, Arvind, Nune, Oliver, Distler, Hector, Chinoy, Vikas, Aggarwal, Rohit, Aggarwal, COVAD Study Group COVAD Study Group: Bhupen Barman, Yogesh Preet Singh, Rajiv, Ranjan, Avinash, Jain, Sapan, C Pandya, N Malaviya, A, Rakesh Kumar Pilania, Aman, Sharma, M Manesh Manoj, Vikas, Gupta, Chengappa, G Kavadichanda, Pradeepta Sekhar Patro, Sajal, Ajmani, Sanat, Phatak, Rudra Prosad Goswami, Abhra Chandra Chowdhury, Ashish Jacob Mathew, Padnamabha, Shenoy, Ajay, Asranna, Keerthi Talari Bommakanti, Anuj, Shukla, Naveen, R, Döndü Üsküdar Cansu, John, D Pauling, Chris, Wincup, Tulika, Chatterjee, Minchul, Kim, Margherita, Giannini, Nicoletta Del Papa, Gianluca, Sambataro, Atzeni, Fabiola, Marcello, Govoni, Simone, Parisi, Elena Bartoloni Bocci, Gian Domenico Sebastiani, Enrico, Fusaro, Marco, Sebastiani, Luca, Quartuccio, Franceschini, Franco, Pier Paolo Sainaghi, Giovanni, Orsolini, Rossella De Angelis, Maria Giovanna Danielli, Lisa, S Traboco, Suryo Anggoro Kusumo Wibowo, Jorge Rojas Serrano, Ignacio García-De La Torre, Erick Adrian Zamora Tehozol, Jesús, Loarce-Martos, Sergio, Prieto-González, Albert, Gil-Vila, Raquel, Aranega, Ran, Nakashima, Shinji, Sato, Naoki, Kimura, Yuko, Kaneko, Stylianos, Tomaras, Margarita Aleksandrovna Gromova, and Aharonov, Or
- Subjects
medicine.medical_specialty ,COVID-19 Vaccines ,Coronavirus disease 2019 (COVID-19) ,Autoimmune diseases ,Immunology ,Disease ,Observational Research ,Rheumatology ,Internal medicine ,Pandemic ,Humans ,Immunology and Allergy ,Medicine ,Intensive care medicine ,Adverse effect ,Survey ,Autoimmune disease ,business.industry ,Vaccination ,COVAD ,COVID-19 ,medicine.disease ,Increased risk ,Health Care Surveys ,Autoimmune Diseases ,Vaccination Hesitancy ,business - Abstract
The coronavirus disease-2019 (COVID-19) pandemic continues to be a cause of unprecedented global morbidity and mortality. Whilst COVID-19 vaccination has emerged as the only tangible solution to reducing poor clinical outcomes, vaccine hesitancy continues to be an obstacle to achieving high levels of vaccine uptake. This represents particular risk to patients with autoimmune diseases, a group already at increased risk of hospitalization and poor clinical outcomes related to COVID-19 infection. Whilst there is a paucity of long-term safety and efficacy data of COVID-19 vaccination in patients with autoimmune diseases, the current evidence strongly suggests that the benefits of vaccination outweigh the risks of adverse effects and disease flares. Herein, we report the protocol of the COVID-19 Vaccination in Autoimmune Diseases (COVAD) study, an ongoing international collaborative study involving 29 countries and over 110 investigators. Supplementary Information The online version contains supplementary material available at 10.1007/s00296-021-05046-4.
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- 2021
31. Poor in-utero growth, and reduced beta cell compensation and high fasting glucose from childhood, are harbingers of glucose intolerance in young Indians
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Souvik Bandopadhyay, Kalyanaraman Kumaran, Clive Osmond, Kurus Coyaji, Sheila Bhave, Anand Pandit, Rucha H. Wagh, Sanat Phatak, Dattatray S. Bhat, Caroline H.D. Fall, Pallavi C. Yajnik, Aboli Bhalerao, and Chittaranjan S. Yajnik
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Pediatrics ,medicine.medical_specialty ,Pregnancy ,business.industry ,Type 2 diabetes ,medicine.disease ,High plasma ,In utero ,Diabetes mellitus ,Medicine ,Underweight ,medicine.symptom ,Beta cell ,Young adult ,business - Abstract
ObjectiveIndia is a double world capital for early life undernutrition and type 2 diabetes. We aimed to characterise lifecourse growth and metabolic trajectories in those developing glucose intolerance as young adults, in the Pune Maternal Nutrition Study (PMNS).Research design and MethodsPMNS is a community-based intergenerational birth cohort established in 1993, with serial information on parents and children through pregnancy, childhood and adolescence. We compared normal glucose tolerant and glucose intolerant participants for serial growth, estimates of insulin sensitivity and secretion (HOMA and dynamic indices) and beta cell compensation accounting for prevailing insulin sensitivity (disposition index).ResultsAt 18 years (N=619) 37% men and 20% women were glucose intolerant (184 prediabetes, 1 diabetes) despite 48% being underweight (BMI2). Glucose intolerant participants had higher fasting glucose from childhood. Mothers of glucose intolerant participants had higher glycemia in pregnancy. Glucose intolerant participants were shorter at birth. Insulin sensitivity decreased with age in all participants, and the glucose intolerant had consistently lower compensatory insulin secretion from childhood. Participants in the highest quintile of fasting glucose at 6 and 12 years had a 2.5- and 4.0-fold higher risk respectively of 18-year glucose intolerance; this finding was replicated in two other cohorts.ConclusionInadequate compensatory insulin secretory response to increasing insulin insensitivity from early life is the major pathophysiology underlying glucose intolerance in thin rural Indians. Smaller birth size, maternal pregnancy hyperglycemia, and higher glycemia in childhood herald future glucose intolerance, mandating a strategy for diabetes prevention from early life, preferably intergenerationally.
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- 2020
32. sj-pdf-1-lup-10.1177_0961203320918011 - Supplemental material for Nuclear magnetic resonance–based targeted profiling of urinary acetate and citrate following cyclophosphamide therapy in patients with lupus nephritis
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Ganguly, Sujata, Kumar, Umesh, Gupta, Nikhil, Guleria, Anupam, Majumdar, Sanjukta, Sanat Phatak, Chaurasia, Smriti, Kumar, Sandeep, Aggarwal, Amita, Kumar, Dinesh, and Ramnath Misra
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111702 Aged Health Care ,FOS: Health sciences - Abstract
Supplemental material, sj-pdf-1-lup-10.1177_0961203320918011 for Nuclear magnetic resonance–based targeted profiling of urinary acetate and citrate following cyclophosphamide therapy in patients with lupus nephritis by Sujata Ganguly, Umesh Kumar, Nikhil Gupta, Anupam Guleria, Sanjukta Majumdar, Sanat Phatak, Smriti Chaurasia, Sandeep Kumar, Amita Aggarwal, Dinesh Kumar and Ramnath Misra in Lupus
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- 2020
- Full Text
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33. Personalized medicine in India: Mirage or a viable goal?
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Sanat Phatak, Somashree Chakraborty, Anisha Wagh, and Pranay Goel
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Rheumatology - Published
- 2022
34. NMR-Based Serum Metabolomics Reveals Reprogramming of Lipid Dysregulation Following Cyclophosphamide-Based Induction Therapy in Lupus Nephritis
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Sanat Phatak, Durgesh Dubey, Smriti Chaurasia, Ramnath Misra, Ranjan Gupta, Sandeep Kumar, Umesh Kumar, Abhishek Zanwar, Amita Aggarwal, Dinesh Kumar, and Anupam Guleria
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Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Magnetic Resonance Spectroscopy ,Cyclophosphamide ,Lupus nephritis ,Disease ,Biochemistry ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Metabolomics ,Internal medicine ,medicine ,Humans ,Lupus Erythematosus, Systemic ,Longitudinal Studies ,030203 arthritis & rheumatology ,Systemic lupus erythematosus ,medicine.diagnostic_test ,business.industry ,Induction Chemotherapy ,General Chemistry ,Middle Aged ,Lipid Metabolism ,medicine.disease ,Lupus Nephritis ,Blood ,Treatment Outcome ,030104 developmental biology ,Case-Control Studies ,Metabolome ,Female ,Renal biopsy ,business ,Nephritis ,Reprogramming ,Biomarkers ,medicine.drug - Abstract
Lupus nephritis (LN) is a major cause of morbidity and mortality in lupus. Renal biopsy is the gold standard for classification of nephritis, but because of its impracticality, new approaches for improving patient prognostication and monitoring treatment efficacy are needed. We aimed to evaluate the potential of metabolic profiling in identifying biomarkers to distinguish disease and monitor treatment efficacy in patients with LN. Serum samples from patients with LN ( n = 18) were profiled on NMR-based metabolomics platforms at diagnosis and after 6 months of treatment. LN patients had a different metabolomic fingerprint as compared with healthy controls, with increased lipoproteins and lipids and reduced acetate and amino acids. Using multivariate statistical analysis, we found that the metabolic changes observed in naïve LN patients at diagnosis displayed a variation in the opposite direction upon responding to treatment. Increased levels of lipid metabolites including low- and very-low-density lipoproteins (LDL/VLDL) in LN patients significantly decreased after 6 months of treatment, whereas the serum levels of acetate increased. These levels correlated significantly with SLE Disease Activity Index (SLEDAI 2K), renal SLEDAI, and serum C3 and C4 levels. The result presented in this pilot longitudinal study revealed the reprogramming of metabolome in LN patients on immunosuppressive therapy using NMR-based metabolomics, and thus this approach may be used to monitor the response to treatment.
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- 2018
35. AB1313 NMR SPECTROSCOPY REVEALS ALTERATIONS OF URINARY ACETATE AND CITRATE LEVELS FOLLOWING CYCLOPHOSPHAMIDE THERAPY IN PATIENTS WITH LUPUS NEPHRITIS
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Smriti Chaurasia, Ramnath Misra, Dinesh Kumar, Sujata Ganguly, Anupam Guleria, Amita Aggarwal, Nikhil Gupta, Sanat Phatak, Sanjukta Majumdar, and Umesh Kumar
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medicine.medical_specialty ,Creatinine ,Cyclophosphamide ,medicine.diagnostic_test ,business.industry ,Urinary system ,Lupus nephritis ,Urine ,Nuclear magnetic resonance spectroscopy ,medicine.disease ,Gastroenterology ,chemistry.chemical_compound ,Metabolomics ,chemistry ,Internal medicine ,Biopsy ,medicine ,business ,medicine.drug - Abstract
Background: Metabolomics, the study of global alterations in small metabolites is a useful tool to look for novel biomarkers. Recently, we reported a reprogramming of the serum metabolomic profile on nuclear magnetic resonance(NMR) spectroscopy following treatment in Lupus Nephritis (LN) [1]. Objectives: We explored urinary parameters using NMR Spectroscopy in patients with biopsy proven proliferative lupus nephritis. Change in parameters after 6 months Cyclophosphamide induction treatment and its correlation with disease activity was assessed. Methods: Urine obtained from Lupus Nephritis (n=18, F=16,M=2) at diagnosis and following induction therapy with cyclophosphamide, and healthy controls (n=18, median age 35,all females) were stored at -80 °C. Metabolomic profiling was done using high resolution 800 MHz 1D 1H NMR spectroscopy. Urinary ratio of metabolites was calculated- (Metabolitex1000)/Creatinine. Disease activity was measured using SLEDAI. Metabolomic profiles were compared between groups and correlated with clinical parameters using SPSS. Results: Urinary metabolomic fingerprint of LN patients differed from healthy controls by having significantly raised urinary acetate/creatinine(LN=41.84±100.6, HC=12.36±9.40, p= Conclusion: The decreased urinary citrate mirrors the finding seen in serum of the patients done earlier which reflects dampened aerobic glycolysis and oxidative phosphorylation.(1) Raised urinary acetate levels possibly reflects proximal renal tubular injury leading to increased urinary excretion(2). Change in levels with treatment show that urinary metabolomics parameters are potential noninvasive biomarkers for diagnosis and monitoring treatment response in LN References [1] Guleria A, et al. NMR based serum metabolomics reveals reprogramming of lipid dysregulation following Cyclophosphamide based induction therapy in lupus nephritis. J Proteome Res. 2018, 17 (7), 2440–2448. [2] Gartland KP, Bonner FW, Nicholson JK. Investigations into the biochemical effects of region-specific nephrotoxins. Molecular Pharmacology. 1989 Feb 1;35(2):242-50. Disclosure of Interests: None declared
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- 2019
36. Racial/ethnic differences in the burden of type 2 diabetes over the life course: a focus on the USA and India
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William C. Knowler, Sanat Phatak, Sherita Hill Golden, Robert L. Hanson, and Chittaranjan S. Yajnik
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0301 basic medicine ,Adult ,Male ,Adolescent ,Endocrinology, Diabetes and Metabolism ,Ethnic group ,India ,030209 endocrinology & metabolism ,Disease ,Type 2 diabetes ,Overweight ,White People ,Article ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Asian People ,Risk Factors ,Internal Medicine ,Medicine ,Humans ,Child ,Socioeconomic status ,Aged ,business.industry ,Incidence ,Type 2 Diabetes Mellitus ,Hispanic or Latino ,Middle Aged ,medicine.disease ,United States ,Black or African American ,030104 developmental biology ,Diabetes Mellitus, Type 2 ,Socioeconomic Factors ,Life course approach ,Female ,Racial/ethnic difference ,medicine.symptom ,business ,Demography - Abstract
Type 2 diabetes is a common disease worldwide, but its prevalence varies widely by geographical region and by race/ethnicity. This review summarises differences in the frequencies of type 2 diabetes according to race, ethnicity, socioeconomic position, area of residence and environmental toxins. Type 2 diabetes susceptibility often begins early in life, starting with genetic susceptibility at conception and continuing in later life, via in utero, childhood and adult exposures. Early-life factors may lead to overt type 2 diabetes in childhood or in later life, supporting the concept of developmental origins of health and disease. The causes of the racial/ethnic differences in incidence of type 2 diabetes are not well understood. Specifically, the relative contributions of genetic and environmental factors to such differences are largely unknown. With a few exceptions in isolated populations, there is little evidence that differences in frequencies of known type 2 diabetes susceptibility genetic alleles account for racial/ethnic differences, although the search for genetic susceptibility has not been uniform among the world's racial/ethnic groups. In the USA, race/ethnicity is associated with many other risk factors for type 2 diabetes, including being overweight/obese, diet and socioeconomic status. Some studies suggest that some of these factors may account for the race/ethnic differences in prevalence of type 2 diabetes, although there is inadequate research in this area. A better understanding of the impact of these factors on type 2 diabetes risk should lead to more effective prevention and treatment of this disease. This has not yet been achieved but should be a goal for future research.
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- 2019
37. Multiple myeloma masquerading as severe seropositive rheumatoid arthritis with subcutaneous nodules and mononeuritis multiplex
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Sukesh Edavalath, Ritu Verma, Durga Prasanna Misra, Abhra Chandra Chowdhury, Able Lawrence, and Sanat Phatak
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030203 arthritis & rheumatology ,Immunofixation ,medicine.medical_specialty ,Tenosynovitis ,biology ,medicine.diagnostic_test ,business.industry ,Mononeuritis Multiplex ,Amyloidosis ,medicine.disease ,Dermatology ,03 medical and health sciences ,0302 clinical medicine ,Rheumatology ,Subcutaneous nodule ,030220 oncology & carcinogenesis ,Biopsy ,Immunology ,biology.protein ,Medicine ,Polyarthritis ,business ,Multiple myeloma - Abstract
Multiple myeloma can rarely mimic seronegative rheumatoid arthritis (RA). We report a 55-year-old woman who presented with longstanding deforming polyarthritis with extensive subcutaneous nodules, tenosynovitis, anti-cyclic citrullinated peptide positivity and mononeuritis multiplex. Even though the clinical picture was consistent with seropositive RA, the absence of bone erosion or joint space narrowing on hand and knee radiographs led us to question the diagnosis of RA. Further investigation revealed a diagnosis of multiple myeloma with cutaneous amyloid deposits, based on serum immunofixation, bone marrow aspiration and biopsy of a subcutaneous nodule. The only clue to suspect myeloma from the basic investigations and clinical examination was mild hypercalcemia. This case serves to reiterate the need to maintain a heightened suspicion for other diagnoses even when RA appears most likely.
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- 2016
38. Assistive devices: Regaining mobility in myositis
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Akshay Oswal, Sanat Phatak, and Samira Davalbhakta
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medicine.medical_specialty ,Weakness ,lcsh:Diseases of the musculoskeletal system ,Rehabilitation ,business.industry ,medicine.medical_treatment ,Muscle weakness ,Orthotics ,medicine.disease ,Gait ,Physical medicine and rehabilitation ,Rheumatology ,orthotics ,medicine ,assistive devices ,physical therapy ,lcsh:RC925-935 ,Inclusion body myositis ,medicine.symptom ,business ,myositis ,human activities ,Myositis ,muscle weakness ,Muscle contracture - Abstract
Assistive devices (ADs) refer to external devices adapted to improve tasks and function. The common types of ADs include those improving mobility such as wheelchairs and walkers, positioning devices such as standing frames, custom-made devices (orthotics) such as fitted shoes and braces, and daily living devices. In inflammatory myositis, ADs are of utility in combating weakness, improving mobility, preventing and treating contractures, preventing falls, and assisting in daily chores. This narrative review looks at the evidence for the use of ADs in myositis and disorders with a similar pattern of muscle weakness (e.g., muscular dystrophy) subsequent to a literature search. A range of devices, from ankle orthoses to robotic exoskeletons, has been used in children with these diseases, and is part of the rehabilitation process. Evidence for their use in inflammatory myositis comes mainly from inclusion body myositis where progression is usual, and distal movement loss additionally affects functionality. In these patients, gait ADs and lower limb orthoses have been shown to be useful. Patient acceptability of these interventions is paramount in choosing the correct device and fit. An interaction of the treating rheumatologist with the physiatrist, the physical therapist, the occupational therapist, and the patient is paramount in ensuring compliance and benefit.
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- 2020
39. Outcomes in juvenile onset lupus: single center cohort from a developing country
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Able Lawrence, Sanat Phatak, Vikas Agarwal, Pramod K. Srivastava, Ramnath Misra, and Amita Aggarwal
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Male ,Pediatrics ,medicine.medical_specialty ,Multivariate analysis ,Time Factors ,Adolescent ,Arthritis ,India ,Disease ,030204 cardiovascular system & hematology ,Single Center ,03 medical and health sciences ,0302 clinical medicine ,Rheumatology ,Cause of Death ,Medicine ,Humans ,Lupus Erythematosus, Systemic ,Age of Onset ,Child ,Developing Countries ,Survival analysis ,Retrospective Studies ,030203 arthritis & rheumatology ,Systemic lupus erythematosus ,business.industry ,Infant ,medicine.disease ,Prognosis ,Survival Analysis ,Child, Preschool ,Cohort ,Multivariate Analysis ,Female ,business ,Developed country - Abstract
Introduction About 10–20% of systemic lupus erythematosus (SLE) patients have onset in childhood and have more severe organ involvement. Survival of juvenile SLE patients is improving worldwide. Long-term data of childhood onset SLE from developing countries is scarce. Methods Clinical and laboratory data at initial presentation and follow-up visits were retrieved from clinic files, hospital information system and personal interviews. Treatment received, complications, flares, outcomes and death were recorded. Survival was calculated using Kaplan–Meier survival curves and regression analysis was done for predictors of mortality. Results Children with SLE ( n = 273, 250 girls) had a median age at onset of 14 years and duration of illness prior to diagnosis at our hospital of 1 year. Fever and arthritis were the most common presenting manifestations. Renal disease was seen in 60.5% and central nervous system (CNS) disease in 29%. The median follow-up period in 248 patients was 3.5 years. Fourteen children died, and 10 of these had active disease at the time of death. The mean actuarial survival was 24.5 years and survival rates at 1, 5 and 10 years were 97.9%, 95% and 89% respectively. Fever, CNS disease, anti-dsDNA levels and serious infections predicted death on univariate and multivariate analysis. Infections were seen in 72 children (26.3%), and 38 of these infections were serious. One-third of the patients had damage on the last follow-up. Flares were seen in 120 children, the majority being major flares. Conclusion Outcomes of pediatric SLE in North Indian children are similar to those seen in developed countries. Infections pose a major challenge in these patients.
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- 2018
40. 113 Skewing of T Helper axis towards Th1 and Th17 cells in sarcoid arthritis compared to non-articular sarcoidosis
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Harshit Singh, Alok Nath, Sajal Ajmani, Vikas Agarwal, Sanat Phatak, Saurabh Chaturvedi, Avinash Jain, and Durga Prasanna Misra
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Rheumatology ,business.industry ,Sarcoid arthritis ,Immunology ,medicine ,Pharmacology (medical) ,Sarcoidosis ,medicine.disease ,business - Published
- 2018
41. Prospective validation of the Juvenile Spondyloarthritis Disease Activity Index in children with enthesitis-related arthritis
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Abhishek Zanwar, Amita Aggarwal, and Sanat Phatak
- Subjects
musculoskeletal diseases ,0301 basic medicine ,Male ,medicine.medical_specialty ,Adolescent ,Arthritis ,Sensitivity and Specificity ,Severity of Illness Index ,03 medical and health sciences ,Disability Evaluation ,0302 clinical medicine ,Rheumatology ,Internal medicine ,Severity of illness ,medicine ,Humans ,Pharmacology (medical) ,Spondylitis, Ankylosing ,Prospective Studies ,Prospective cohort study ,Child ,Spondylitis ,BASDAI ,Retrospective Studies ,030203 arthritis & rheumatology ,Ankylosing spondylitis ,business.industry ,Construct validity ,Reproducibility of Results ,medicine.disease ,Arthritis, Juvenile ,Juvenile Spondyloarthritis Disease Activity Index ,030104 developmental biology ,Female ,Symptom Assessment ,business - Abstract
Objective To measure disease activity in children with enthesitis-related arthritis the Juvenile Spondyloarthritis Disease Activity Index (JSpADA) was developed and retrospectively validated. We prospectively validated JSpADA and also assessed performance of adult SpA scores. Methods Children with enthesitis-related arthritis (ILAR criteria) less than 18 years of age were enrolled. Baseline characteristics and different disease activity measures (JSpADA, BASDAI, Ankylosing Spondylitis Disease Activity Score-ESR, juvenile arthritis DAS-10 joints), and Childhood HAQ, physician global assessment and patient global assessment were recorded at baseline. In some children follow-up was also done. Results The mean (s.d.) age of 127 children (116 boys) was 14.3 (2.4) years and disease duration was 36.9 (3) months. Ninety of 104 (86.5%) children were HLA-B27 positive. JSpADA showed high correlation with physician global assessment (r = 0.87; P < 0.0001), patient global assessment (r = 0.80, P < 0.0001), juvenile arthritis DAS-10 joints (r = 0.89; P < 0.0001) and Childhood HAQ (r = 0.83, P < 0.0001). The JSpADA scores showed good internal consistency, discriminative validity and sensitivity to change. In 15% of children back mobility could not be tested due to active arthritis in lower limbs. The 7-variable JSpADA excluding back mobility performed as well as the original JSpADA. Adult scores showed good construct validity, discriminative capacity and sensitivity to change, and had good correlation with JSpADA (BASDAI, r = 0.84; Ankylosing Spondylitis Disease Activity Score-ESR, r = 0.84). Conclusion JSpADA is a valid score for measuring disease activity in enthesitis-related arthritis. Adult scores also performed well. Excluding back mobility needs to be assessed in future to improve JSpADA performance.
- Published
- 2018
42. ERAP1 rs30187 single nucleotide polymorphism does not confer disease susceptibility in North Indian children with enthesitis-related arthritis
- Author
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Sanat Phatak, Amita Aggarwal, and Rajni Srivastava
- Subjects
0301 basic medicine ,Adult ,Male ,Adolescent ,Genotype ,Population ,India ,Single-nucleotide polymorphism ,Aminopeptidases ,Polymerase Chain Reaction ,Polymorphism, Single Nucleotide ,Minor Histocompatibility Antigens ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Rheumatology ,Gene Frequency ,medicine ,Prevalence ,SNP ,Humans ,Genetic Predisposition to Disease ,Age of Onset ,education ,Child ,Allele frequency ,Genotyping ,Aged ,030203 arthritis & rheumatology ,Genetics ,Aged, 80 and over ,Ankylosing spondylitis ,education.field_of_study ,business.industry ,General Medicine ,DNA ,Middle Aged ,medicine.disease ,Arthritis, Juvenile ,Genotype frequency ,Minor allele frequency ,030104 developmental biology ,Child, Preschool ,Immunology ,Female ,business - Abstract
ERAP1 single nucleotide polymorphisms (SNP) are associated with ankylosing spondylitis. Data on ERAP1SNPs in juvenile idiopathic arthritis (JIA) is scarce. ERAP1 rs30187 SNP was shown to confer risk in the enthesitis-related arthritis (ERA) category of JIA. We examined the prevalence and association of this SNP in Indian children with ERA. SNPs in ERAP1 (rs30187) were genotyped in children with ERA (n = 271), ankylosing spondylitis (AS) (n = 213) and healthy controls (n = 101), using Taqman genotyping. Allele frequencies and genotype frequencies were calculated and compared using the Cochran Armitage test. Minor allele frequencies were 0.52 in ERA, 0.57 in AS, and 0.57 in healthy controls. Neither ERA nor AS patients showed significant association with this SNP. Segregating according to HLAB27 status did not alter the lack of association. rs30187 SNP in ERAP1 does not confer risk of developing ERA or AS in the Asian Indian population.
- Published
- 2016
43. Urinary B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL): potential biomarkers of active lupus nephritis
- Author
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Vinita Agrawal, S.K. Mishra, Ramnath Misra, Ranjan Gupta, Sanat Phatak, Smriti Chaurasia, and Amita Aggarwal
- Subjects
0301 basic medicine ,Adult ,Male ,Cyclophosphamide ,Urinary system ,Immunology ,Tumor Necrosis Factor Ligand Superfamily Member 13 ,Lupus nephritis ,Severity of Illness Index ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Blisibimod ,B-Cell Activating Factor ,medicine ,Immunology and Allergy ,Humans ,Lupus Erythematosus, Systemic ,Prospective Studies ,B-cell activating factor ,skin and connective tissue diseases ,030203 arthritis & rheumatology ,B-Lymphocytes ,Systemic lupus erythematosus ,business.industry ,Area under the curve ,Original Articles ,Middle Aged ,medicine.disease ,Lupus Nephritis ,030104 developmental biology ,Female ,business ,Nephritis ,Biomarkers ,medicine.drug - Abstract
Summary B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) help in B cell activation, maintenance and plasma cell survival. B cell infiltration has been demonstrated in kidneys of patients with lupus nephritis (LN). Serum levels of BAFF and APRIL have shown inconsistent relationships with lupus disease activity. We evaluated urinary levels of BAFF and APRIL as biomarker for LN. Thirty-six patients with proliferative lupus nephritis (AN), 10 with active lupus without nephritis (AL) and 15 healthy controls (HC) were studied. APRIL and BAFF levels were measured in both serum and urine using enzyme-linked immunosorbent assay (ELISA). Urine levels were normalized for urinary creatinine excretion. Urine levels were correlated with conventional disease activity markers and histology. Levels were reassessed in 20 AN patients at 6 months after treatment with cyclophosphamide. Urinary APRIL (uAPRIL) and BAFF (uBAFF) levels were raised significantly in AN. uAPRIL, but not uBAFF, correlated moderately with renal Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) in AN (r = 0·36, P
- Published
- 2016
44. A Young Woman with Panniculitis and Cytopenia who Later Developed Coagulopathy
- Author
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Sanat, Phatak, Latika, Gupta, and Amita, Aggarwal
- Subjects
Panniculitis ,Disseminated Intravascular Coagulation ,Lymphoma, T-Cell ,Thrombocytopenia ,Lymphohistiocytosis, Hemophagocytic ,Diagnosis, Differential ,Young Adult ,Fatal Outcome ,Subcutaneous Tissue ,Panniculitis, Lupus Erythematosus ,Humans ,Female ,Tomography, X-Ray Computed ,Skin - Abstract
A young woman presented with panniculitis, fever and blood cytopenias, later going on to develop hemophagocytic lymphohistiocytosis. Further evaluation revealed the presence of subcutaneous panniculitis like T-cell lymphoma (SPTCL). With this case we present an approach to panniculitis, a commonly encountered skin manifestation with a wide range of differentials. We discuss the close similarity between lupus erythematous panniculitis (LEP) and lymphoma.
- Published
- 2016
45. NMR based serum metabolomics reveals a distinctive signature in patients with Lupus Nephritis
- Author
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Durgesh Dubey, Sajal Ajmani, Edavalath Sukesh, Atul Rawat, Umesh Kumar, Paul A. Bacon, Chunni Lal Khetrapal, Smriti Chaurasia, Ramnath Misra, Dinesh Kumar, Avadhesh Pratap, Sanat Phatak, and Anupam Guleria
- Subjects
0301 basic medicine ,Adult ,Male ,Very low-density lipoprotein ,Magnetic Resonance Spectroscopy ,Lupus nephritis ,Urine ,Article ,03 medical and health sciences ,chemistry.chemical_compound ,Metabolomics ,Medicine ,Humans ,In patient ,Creatinine ,Multidisciplinary ,business.industry ,Lipid metabolism ,Middle Aged ,medicine.disease ,Lipid Metabolism ,Molecular biomarkers ,Lipids ,Lupus Nephritis ,Magnetic Resonance Imaging ,030104 developmental biology ,chemistry ,Immunology ,Female ,business ,Biomarkers - Abstract
Management of patient with Lupus Nephritis (LN) continues to remain a challenge for the treating physicians because of considerable morbidity and even mortality. The search of biomarkers in serum and urine is a focus of researchers to unravel new targets for therapy. In the present study, the utility of NMR-based serum metabolomics has been evaluated for the first time in discriminating LN patients from non-nephritis lupus patients (SLE) and further to get new insights into the underlying disease processes for better clinical management. Metabolic profiling of sera obtained from 22 SLE patients, 40 LN patients and 30 healthy controls (HC) were performed using high resolution 1D 1H-CPMG and diffusion edited NMR spectra to identify the potential molecular biomarkers. Using multivariate analysis, we could distinguish SLE and LN patients from HC and LN from SLE patients. Compared to SLE patients, the LN patients had increased serum levels of lipid metabolites (including LDL/VLDL lipoproteins), creatinine and decreased levels of acetate. Our results revealed that metabolic markers especially lipids and acetate derived from NMR spectroscopy has high sensitivity and specificity to distinguish LN among SLE patients and has the potential to be a useful adjunctive tool in diagnosis and clinical management of LN.
- Published
- 2016
46. Antineutrophil cytoplasmic antibody (ANCA) testing: Audit from a clinical immunology laboratory
- Author
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Amita Aggarwal, Ramnath Misra, Vikas Agarwal, Sanat Phatak, and Able Lawrence
- Subjects
Clinical immunology ,Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis ,Enzyme-Linked Immunosorbent Assay ,Unnecessary Procedures ,Antibodies, Antineutrophil Cytoplasmic ,03 medical and health sciences ,0302 clinical medicine ,Rheumatology ,Predictive Value of Tests ,Medicine ,Humans ,False Positive Reactions ,030212 general & internal medicine ,Positive test ,Fluorescent Antibody Technique, Indirect ,Anti-neutrophil cytoplasmic antibody ,Retrospective Studies ,030203 arthritis & rheumatology ,Medical Audit ,Indirect immunofluorescence ,biology ,business.industry ,Clinical Laboratory Techniques ,Reproducibility of Results ,IIf ,medicine.disease ,Predictive value of tests ,Immunology ,Practice Guidelines as Topic ,biology.protein ,Guideline Adherence ,Antibody ,business ,Vasculitis ,Biomarkers - Abstract
Aim Anti-neutrophil cytoplasmic antibodies (ANCA) are associated with small vessel vasculitis now termed ‘ANCA associated vasculitis’ (AAV). ANCAs are reported in diverse diseases where they have no clinical utility. We carried out an audit in a clinical immunology laboratory and assessed if use of ordering practices could have improved utility of ANCA. Methods All samples received for ANCA testing during 2014 were tested by indirect immunofluorescence (IIF) and automated enzyme-linked immunosorbent assay (ELISA). Clinical records of all samples positive by one or more assays were retrieved. We assessed the effect of applying proposed test ordering guidelines on performance of the tests. Results Of 1590 samples, 108 (6.8%) had a positive result by at least one method. IIF showed perinuclear pattern in 72 (21 were antinuclear antibody positive), cytoplasmic in 22, six had atypical pattern and eight were negative. By ELISA anti-myeloperoxidase antibodies were present in 33 samples, anti-proteinase 3 in 24, while five sera had both antibodies. ELISA and IIF were concordant in 45 samples. Twenty-seven patients had AAV of which 23 were both ELISA and IIF positive. Among these 27 with AAV all had at least one ordering criteria, while in 81 patients without AAV but with positive test, 38 had no ordering criteria. Conclusion Reduction in false positive can be achieved by considering only those samples as ANCA positive that test positive both on IIF and ELISA and by following ordering guidelines before requesting ANCA testing, and by use of ordering criteria by clinicians.
- Published
- 2016
47. Presumptive Lupus Enteritis
- Author
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Pradeepta Sekhar Patro, Able Lawrence, Abhishek Zanwar, and Sanat Phatak
- Subjects
Pathology ,medicine.medical_specialty ,Enteritis ,Diagnosis, Differential ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Intestine, Small ,medicine ,Humans ,Lupus Erythematosus, Systemic ,030203 arthritis & rheumatology ,Systemic lupus erythematosus ,Lupus erythematosus ,business.industry ,General Medicine ,medicine.disease ,Abdominal Pain ,030211 gastroenterology & hepatology ,Drug Therapy, Combination ,Female ,Steroids ,business ,Immunosuppressive Agents ,Anti-SSA/Ro autoantibodies - Published
- 2016
48. HLA B27 typing in 511 children with juvenile idiopathic arthritis from India
- Author
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Rajni Srivastava, Sanat Phatak, Amita Aggarwal, Akhilesh Yadav, and Preeti Bajpai
- Subjects
musculoskeletal diseases ,0301 basic medicine ,Male ,medicine.medical_specialty ,Adolescent ,Genotype ,Spondyloarthropathy ,Immunology ,Arthritis ,India ,03 medical and health sciences ,Psoriatic arthritis ,0302 clinical medicine ,Rheumatology ,Internal medicine ,medicine ,Prevalence ,Immunology and Allergy ,Rheumatoid factor ,Humans ,skin and connective tissue diseases ,Child ,HLA-B27 Antigen ,030203 arthritis & rheumatology ,Oligoarthritis ,business.industry ,Sacroiliitis ,Polyarticular Arthritis ,medicine.disease ,Arthritis, Juvenile ,030104 developmental biology ,Child, Preschool ,Polyarthritis ,Female ,business - Abstract
The enthesitis-related arthritis (ERA) category of juvenile idiopathic arthritis (JIA) is the most common category in India. HLA B27 has a high prevalence in ERA, and ILAR classification includes it in exclusion criteria for other categories, but due to its cost, it is not routinely done. We undertook this study to assess the prevalence of HLA B27 in ERA and other groups of juvenile arthritis in India. Consecutive patients of JIA ERA and select patients from other categories were recruited from a single tertiary care hospital over a span of 3 years. HLA B27 was tested using PCR. Five hundred and eleven children were studied: 312 had ERA, and 199 had other categories (29 oligoarthritis, 107 polyarthritis, 44 systemic onset JIA, 9 psoriatic arthritis and 10 undifferentiated). The prevalence of HLA B27 was highest in the ERA group (87 %) and correlated with the presence of sacroiliitis. Prevalence was 10.3 % in oligoarthritis, 16 % in polyarticular rheumatoid factor (RF)-positive arthritis, 26 % in RF-negative polyarticular arthritis, 66 % in psoriatic arthritis and 40 % in the unclassified and 0 % in systemic onset category. Twenty-seven children had a change in category of JIA as per ILAR owing to HLA B27 testing positive, most commonly in the RF-negative polyarthritis group. Only six of these had clinical features suggestive of Spondyloarthropathy. There is high prevalence of HLA B27 in ERA. Though HLA B27 testing helps in correct classification, a minority of these patients have features suggestive of spondyloarthropathy like back pain, enthesitis or sacroiliitis.
- Published
- 2016
49. Rickettsial fever presenting with isolated third nerve palsy
- Author
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Anjali, Rajadhyaksha, Sanat, Phatak, Nilesh, Nolkha, Yasmeen, Pathan, and Archana, Sonawale
- Subjects
Adult ,Male ,Fever ,Doxycycline ,Oculomotor Nerve Diseases ,Humans ,Rickettsia Infections ,Anti-Bacterial Agents - Abstract
Rickettsial fevers are known to have neurological involvement, mostly in the form of meningoencephalitis. Focal neurodeficits, including isolated cranial nerve palsies have been rarely reported. We hereby report a case of a 25 year old man who presented to us with high grade fever caused by rickettsia and left sided partial third cranial nerve palsy. He responded to doxycycline.
- Published
- 2014
50. Recurrent cardiac tamponade in a young woman
- Author
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Santosh B Salagre, Shobha M Itolikar, Manish Itolikar, and Sanat Phatak
- Subjects
Adult ,medicine.medical_specialty ,Nifedipine ,Prednisolone ,Cardiomegaly ,Pericardial effusion ,Scleroderma ,Pericardial Effusion ,Article ,Hypothyroidism ,X ray computed ,Cardiac tamponade ,Internal medicine ,Medicine ,Humans ,skin and connective tissue diseases ,Cyclophosphamide ,Scleroderma, Systemic ,integumentary system ,business.industry ,Thyroid disease ,General Medicine ,medicine.disease ,Connective tissue disease ,Rheumatology ,Surgery ,Cardiac Tamponade ,Female ,business ,Tomography, X-Ray Computed ,Pericardium - Abstract
A young woman presented with recurrent pericardial effusion, she had previously been treated with antitubercular medications. She had clinical features of systemic sclerosis (SSc) which was subsequently confirmed on further workup. She was also found to be profoundly hypothyroid. Cardiac tamponade is uncommon in both SSc as well as hypothyroidism, unlike in our patient who was found to have both of these disorders. In her case, the pericardial involvement probably ante-dated the other features of SSc.
- Published
- 2013
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