388 results on '"Parul Sharma"'
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2. Is Completeness and Timeliness of Public Health Action (PHA) a Robust Tool to Improve the TB Treatment Outcome in the Private Sector?
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Parul Sharma, Nitin Solanki, and Bhavisha Vegada
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private practitioners ,public health action ,tuberculosis ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Public health action (PHA) in tuberculosis (TB) includes six components: doing screening for HIV/diabetes, carrying out drug susceptibility testing, counseling on tobacco, counseling on nutrition, benefits of Nikshay Poshan Yojana, and contact tracing. All the patients notified by the private practitioners (PPs) and missing any of the above components are intervened by the government staff to cover all the above components. Objectives: The aim of the article is (1) to assess the timeliness and completeness of PHA and (2) to assess the impact of PHA on the quality of care for TB patients in the private sector. Methods: A sequential mixed-method (cross-sectional study followed by qualitative study) study was carried out in the Patan district, North Gujarat for a period of one year. Quantitative data were collected through home visits to patients residing in three randomly selected talukas out of nine talukas in the Patan district. Qualitative data were collected purposively from selected clinics of PPs (including a mix of PP notifying and not notifying TB till saturation is achieved) from the above talukas. Results: Out of a total of 176 patients from the private sector, 48 patients took all six components of PHA. Out of them, 98% were cured compared to 82% who did not receive PHA. None of the PP had heard about PHA or its components. Conclusion: The Public–private model for TB management needs strengthening. Regular and mandatory training of PPs on the latest TB management guidelines including importance of timely and complete PHA should be carried out.
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- 2024
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3. Sustainable farming practices and soil health: a pathway to achieving SDGs and future prospects
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Pooja Sharma, Parul Sharma, and Nitika Thakur
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Sustainable farming ,Sustainable development goals (SDG’s) ,Soil health ,Precision agriculture ,Carbon farming ,IPM ,Environmental sciences ,GE1-350 - Abstract
Abstract Sustainable farming practices aim to produce agricultural products at a low environmental cost, ensuring food availability for future generations. These approaches combine the production of agricultural crops and livestock for site-specific uses, with an emphasis on long-term objectives including satisfying the food supply worldwide, improving the environment, making the most efficient use of resources and boosting the welfare of farmers and society as a whole. Sustainability in farming is mostly dependent on soil health, which is the soil’s capacity to function within ecological and land-use boundaries. It enhances general wellness, maintains the purity of the air and water, and supports biological productivity. The depletion of soil functions brought about by modern agricultural intensification has an impact on ecosystem services and long-term productivity. The goal of sustainable farming is to raise fertility and organic matter in the soil. Key practices include carbon farming, conservation agriculture, integrated pest management (IPM), and precision farming. In order to support sustainable crop production, these techniques improve soil fertility, structure, and biodiversity. Going forward, research should concentrate on developing novel approaches to tackle the issues of climate change and global food security.
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- 2024
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4. Chemical composition and antifungal potential of Vinca rosea leaf essential oil and extracts from Northern India
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Parul Sharma, Ramandeep Kaur, Urvashi Bhardwaj, and Jaspal Kaur
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Catharanthus roseus ,extraction ,GC–MS analysis ,phytochemical ,Fusarium graminearum ,Bipolaris sorokiniana ,Agriculture ,Food processing and manufacture ,TP368-456 - Abstract
Advancing understanding of the diverse properties of essential oils has spurred a significant increase in both their production and application. The current research aimed to study the chemical, physical, and antifungal characteristics of Vinca rosea leaves’ essential oil compared to its extract. The leaf’s essential oil and extract composition were examined using GC-MS and further tested for antifungal activity against Fusarium graminearum and Bipolaris sorokiniana by poisoned food technique. 34 compounds were identified in leaves essential oil predominantly composed of butylated hydroxytoluene (32.74%). The methanolic extract showed the presence of alkaloids, mainly vindoline, and the non-polar extract showed the presence of cholesterol as the primary compound. The methanolic extract demonstrated stronger antifungal activity against F. graminearum, with ED50 and ED90 of 80 and 240 µg/mL, compared to the essential oil, which had higher ED50 and ED90 of 98 and 865 µg/mL, respectively. In the case of B. sorokiniana, ED50 values of methanol extract, essential oil, and hexane extract were 76, 100, and >1000 µg/ml, respectively, and ED90 were observed to be 290, 875, and >1000 µg/ml. Vinca rosea essential oil can potentially be used to develop natural antifungal agents. For the first time, the chemical composition of the essential oil of V. rosea cultivated in the Northern Indian region is being reported.
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- 2024
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5. Pulmonary SARS-CoV-2 infection leads to para-infectious immune activation in the brain
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Cordelia Dunai, Claire Hetherington, Sarah A. Boardman, Jordan J. Clark, Parul Sharma, Krishanthi Subramaniam, Kukatharmini Tharmaratnam, Edward J. Needham, Robyn Williams, Yun Huang, Greta K. Wood, Ceryce Collie, Andrew Fower, Hannah Fox, Mark A. Ellul, Marie Held, Franklyn N. Egbe, Michael Griffiths, Tom Solomon, Gerome Breen, Anja Kipar, Jonathan Cavanagh, Sarosh R. Irani, Angela Vincent, James P. Stewart, Leonie S. Taams, David K. Menon, and Benedict D. Michael
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virology ,immunology ,SARS-CoV-2 ,neurology ,microglia ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Neurological complications, including encephalopathy and stroke, occur in a significant proportion of COVID-19 cases but viral protein is seldom detected in the brain parenchyma. To model this situation, we developed a novel low-inoculum K18-hACE2 mouse model of SARS-CoV-2 infection during which active viral replication was consistently seen in mouse lungs but not in the brain. We found that several mediators previously associated with encephalopathy in clinical samples were upregulated in the lung, including CCL2, and IL-6. In addition, several inflammatory mediations, including CCL4, IFNγ, IL-17A, were upregulated in the brain, associated with microglial reactivity. Parallel in vitro experiments demonstrated that the filtered supernatant from SARS-CoV-2 virion exposed brain endothelial cells induced activation of uninfected microglia. This model successfully recreates SARS-CoV-2 virus-associated para-infectious brain inflammation which can be used to study the pathophysiology of the neurological complications and the identification of potential immune targets for treatment.
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- 2024
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6. GST polymorphism as a predictive biomarker for modulating the susceptibility to chronic obstructive pulmonary disease: A North Indian study
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Harsh Yadav, Depanshi Pandit, Sidhartha Singh, Parul Sharma, Kranti Garg, Nidhi Girdhar, Karan Sharma, Vishal Chopra, Siddharth Chopra, and Siddharth Sharma
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COPD ,GSTM1 ,GSTT1 ,multiplex PCR ,polymorphism ,Physiology ,QP1-981 - Abstract
Abstract Chronic obstructive pulmonary disease (COPD) is commonly characterized by shortness of breath, coughing or expectoration. Smoking is the leading cause of COPD development, but only a small percentage of smokers develop symptoms, implying a genetic component. Glutathione S‐transferase enzymes are responsible for detoxifying cigarette smoke components. The role of glutathione S‐transferase T1 (GSTT1) and glutathione S‐transferase M1 (GSTM1) gene polymorphism was assessed with COPD susceptibility and associated clinical parameters in the North Indian population. This was a cross‐sectional study involving 200 COPD patients and 200 healthy individuals, with peripheral blood sampling and adequate questionnaires. Multiplex PCR was used for genotyping GSTT1 and GSTM1 gene polymorphism. Logistic regression was used to calculate the odds ratio and 95% confidence intervals to assess the COPD risk and GST polymorphisms. The GSTT1 gene deletion rate was higher in COPD cases (34.5%) than in healthy individuals (20.5%). A statistical relationship between the GSTT1(−) null genotype and COPD risk was observed (odds ratio = 2.04, 95% CI = 1.30–3.20, P = 0.0019). After adjusting for covariates like age, sex and smoking status, a significant association was found for GSTT1(−) null genotype and COPD risk (adjusted odds ratio = 2.90, 95% CI = 1.43–5.87, P = 0.003). The GSTT1(−) genotype was also significantly correlated with clinical parameters for COPD risk. Another primary observation was that females with the GSTT1(−) null genotype were more vulnerable to COPD than males with the same gene deletion. The GSTT1(−) null genotype strongly correlates with COPD development, while no association was observed in the GSTM1(−) null genotype in the North Indian population.
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- 2024
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7. Compassion Fatigue and Compassion Satisfaction Among Nursing Officers
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Parul Sharma, Bindu Shaiju, Jahanara Rahman, and Dharmander Singh
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burnout ,compassion fatigue ,compassion satisfaction ,secondary traumatic stress ,Nursing ,RT1-120 - Abstract
Introduction: Nurses make up the largest group of health-care workers, so it is important to rule out compassion fatigue (CF) and compassion satisfaction among nursing officers. Methodology: A descriptive study was adopted, and purposive sampling technique was used. The present study’s sample included 134 nursing officers. The data were gathered in January 2022 using the Structured CF Scale and the Structured Compassion Satisfaction Scale. The data were analyzed using descriptive and inferential statistics. Results: The findings of the research revealed that the majority of the nursing officers had a moderate level of CF in terms of burnout and secondary traumatic stress and moderate level of compassion satisfaction while taking care of patients suffering from COVID-19. The findings of the present study also revealed that there was no significant relationship between CF in terms of burnout and secondary traumatic stress and compassion satisfaction, but a negative and weak correlation was evident. It was found that there was no significant association between CF in terms of burnout with selected demographic variables. It was also found that there was a significant association between CF in terms of secondary traumatic stress with age and there was no significant association between compassion satisfaction with demographic variables. Conclusion: It was found that the majority of nursing officers were highly satisfied with their jobs and they were found to be more compassionate during this pandemic.
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- 2024
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8. Baseline findings of a multicentric ambispective cohort study (2021–2022) among hospitalised mucormycosis patients in India
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Rizwan Suliankatchi Abdulkader, Manickam Ponnaiah, Tarun Bhatnagar, Devika S, Amanda G.A Rozario, Gayathri K, Malu Mohan, Michaelraj E, Divya Saravanakumar, Aditya Moorthy, Amit Kumar Tyagi, Bhagirathsinh D Parmar, K Devaraja, Gaurav Medikeri, Jutika Ojah, Kajal Srivastava, Karthikeyan K, Nandini Das, Niharika B, Parul Sharma, Pradipta Kumar Parida, Prasanna Kumar Saravanam, Praveen Kulkarni, Priya S, Pushpa Patil S, Rahul Kumar Bagla, Ramesh D, Renuka S Melkundi, Satish S Satpute, Seetharaman Narayanan, Shubhashri Jahagirdar, Simmi Dube, Sunil Kumar Panigrahi, Surendra Babu D, Vaibhav Saini, Rita Singh Saxena, Abhinav Srivastava, Achyut Chandra Baishya, Ajai Garg, Amit Kumar Mishra, Anjan Jyoti Talukdar, Ankita Kankaria, Arathi Karat, Arul Sundaresh Kumar, Ashi Chug, Ashok Vankundre, Balakrishnan Ramaswamy, Bharathi MB, Bhargav R Jadav, Muthuswamy Dhiwakar, Girija Ghate, Hardik V Shah, Ipsita Saha, Kavya Sivapuram, Krupal J Joshi, Mahendra Singh, Mukesh Chand Bairwa, Divya K, Muthurajesh E, Navneh Samagh, Nethra Dinakaran, Nikhil Gupta, Nitin Gupta, Nitin M Nagarkar, Nitin Solanki, Prasan Kumar Panda, Prithvi Bachalli, Raghunath Shanbag, Rajashri Patil, Rajesh Kumar A, Rakesh Narayan Patil, Ramanikanth Thookkanaickenpalayam Vijayaraghavan, Ramesh Hanumantappa, Rathinavel A, Saleel Kumar Mandal, Sanjay Pandharinath Kishve, Sara Varghese Thomas, Saurav Sarkar, Shalini Thakur, Siddaram Patil, Somu Lakshmanan, Srinivas D Rao, Sumathi V, Tulasi Nayak, Umesh R Dixit, Unnikrishnan B, Varsha Backiavathy, Vijendra Shenoy, Vinay Kumar Hallur, Aparna Bhatnagar, and Manoj V Murhekar
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Mucormycosis ,India ,cohort ,hospitalisation ,COVID-19 ,survival ,Biology (General) ,QH301-705.5 ,Microbiology ,QR1-502 - Abstract
In India, the incidence of mucormycosis reached high levels during 2021–2022, coinciding with the COVID-19 pandemic. In response to this, we established a multicentric ambispective cohort of patients hospitalised with mucormycosis across India. In this paper, we report their baseline profile, clinical characteristics and outcomes at discharge. Patients hospitalized for mucormycosis during March–July 2021 were included. Mucormycosis was diagnosed based on mycological confirmation on direct microscopy (KOH/Calcofluor white stain), culture, histopathology, or supportive evidence from endoscopy or imaging. After consent, trained data collectors used medical records and telephonic interviews to capture data in a pre-tested structured questionnaire. At baseline, we recruited 686 patients from 26 study hospitals, of whom 72.3% were males, 78% had a prior history of diabetes, 53.2% had a history of corticosteroid treatment, and 80% were associated with COVID-19. Pain, numbness or swelling of the face were the commonest symptoms (73.3%). Liposomal Amphotericin B was the commonest drug formulation used (67.1%), and endoscopic sinus surgery was the most common surgical procedure (73.6%). At discharge, the disease was stable in 43.3%, in regression for 29.9% but 9.6% died during hospitalization. Among survivors, commonly reported disabilities included facial disfigurement (18.4%) and difficulties in chewing/swallowing (17.8%). Though the risk of mortality was only 1 in 10, the disability due to the disease was very high. This cohort study could enhance our understanding of the disease’s clinical progression and help frame standard treatment guidelines.
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- 2024
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9. Phlorotannin-Rich Ascophyllum nodosum Seaweed Extract Inhibits Influenza Infection
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Daniele F. Mega, Parul Sharma, Anja Kipar, Udo Hetzel, Chloe Bramwell, Alan Merritt, Samuel Wright, Chris Plummer, Richard A. Urbanowicz, and James P. Stewart
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influenza A virus ,antiviral ,seaweed ,Ascophyllum nodosum ,Microbiology ,QR1-502 - Abstract
Seaweed-derived compounds are a renewable resource utilised in the manufacturing and food industry. This study focuses on an enriched seaweed extract (ESE) isolated from Ascophyllum nodosum. The ESE was screened for antiviral activity by plaque reduction assays against influenza A/Puerto Rico/8/1934 H1N1 (PR8), A/X-31 H3N2 (X31) and A/England/195/2009 H1N1 (Eng195), resulting in the complete inhibition of infection. Time of addition assays and FACS analysis were used to help determine the modes of action. The therapeutic potential of ESE was then explored using differentiated human bronchiole epithelial cells at the air–liquid interphase and a murine model challenged with IAV. The data indicates that ESE primarily interacts directly with virions, reducing mean virus–cell binding by 79.3% with 0.01 mg/mL ESE. Interestingly, ESE also inhibits the early and late stages of the influenza A lifecycle when treatment occurs after cell binding. This inhibitory effect appears to reduce the internalisation of the virus and the release of progeny virus by targeting neuraminidase activity, with IC50 values of 0.5 μg/mL for X31, 3.2 μg/mL for Eng195 and 12.8 μg/mL for PR8. The intranasal administration of 5 mg/kg ESE in mice infected with IAV reduced the viral load in lung tissue. ESE may be a promising broad-acting antiviral agent in the treatment of influenza infections.
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- 2024
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10. Para-infectious brain injury in COVID-19 persists at follow-up despite attenuated cytokine and autoantibody responses
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Benedict D. Michael, Cordelia Dunai, Edward J. Needham, Kukatharmini Tharmaratnam, Robyn Williams, Yun Huang, Sarah A. Boardman, Jordan J. Clark, Parul Sharma, Krishanthi Subramaniam, Greta K. Wood, Ceryce Collie, Richard Digby, Alexander Ren, Emma Norton, Maya Leibowitz, Soraya Ebrahimi, Andrew Fower, Hannah Fox, Esteban Tato, Mark A. Ellul, Geraint Sunderland, Marie Held, Claire Hetherington, Franklyn N. Egbe, Alish Palmos, Kathy Stirrups, Alexander Grundmann, Anne-Cecile Chiollaz, Jean-Charles Sanchez, James P. Stewart, Michael Griffiths, Tom Solomon, Gerome Breen, Alasdair J. Coles, Nathalie Kingston, John R. Bradley, Patrick F. Chinnery, Jonathan Cavanagh, Sarosh R. Irani, Angela Vincent, J. Kenneth Baillie, Peter J. Openshaw, Malcolm G. Semple, ISARIC4C Investigators, COVID-CNS Consortium, Leonie S. Taams, and David K. Menon
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Science - Abstract
Abstract To understand neurological complications of COVID-19 better both acutely and for recovery, we measured markers of brain injury, inflammatory mediators, and autoantibodies in 203 hospitalised participants; 111 with acute sera (1–11 days post-admission) and 92 convalescent sera (56 with COVID-19-associated neurological diagnoses). Here we show that compared to 60 uninfected controls, tTau, GFAP, NfL, and UCH-L1 are increased with COVID-19 infection at acute timepoints and NfL and GFAP are significantly higher in participants with neurological complications. Inflammatory mediators (IL-6, IL-12p40, HGF, M-CSF, CCL2, and IL-1RA) are associated with both altered consciousness and markers of brain injury. Autoantibodies are more common in COVID-19 than controls and some (including against MYL7, UCH-L1, and GRIN3B) are more frequent with altered consciousness. Additionally, convalescent participants with neurological complications show elevated GFAP and NfL, unrelated to attenuated systemic inflammatory mediators and to autoantibody responses. Overall, neurological complications of COVID-19 are associated with evidence of neuroglial injury in both acute and late disease and these correlate with dysregulated innate and adaptive immune responses acutely.
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- 2023
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11. The Ralstonia Research Community Rejects the Proposal to Classify Phylotype I Ralstonia into the New Species Ralstonia nicotianae
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Tiffany Lowe-Power, Parul Sharma, Poliane Alfenas-Zerbini, Belén Álvarez, Mohammad Arif, Caroline Baroukh, Ana Maria Bocsanczy, Elena G. Biosca, José A. Castillo, Gilles Cellier, Teresa Coutinho, André Drenth, Ville-Petri Friman, Stephane Genin, Alice Guidot, Yasufumi Hikichi, Qi Huang, Anjali Iyer-Pascuzzi, Kenji Kai, Yann Pecrix, Stephane Poussier, Jane D. Ray, Maurício Rossato, Rebecca Schomer, Maria Inés Siri, Boris A. Vinatzer, and Caitilyn Allen
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bacterial wilt disease ,Ralstonia phylotypes ,Ralstonia pseudosolanacearum ,Ralstonia solanacearum ,Ralstonia syzygii ,taxonomy ,Plant culture ,SB1-1110 ,Botany ,QK1-989 - Abstract
The Ralstonia solanacearum species complex is a group of globally important plant pathogens. Bacteria in this very large and genetically diverse group all colonize the xylem elements of angiosperm plants and cause high-impact wilting diseases of many crops. Because they threaten economic and food security, several R. solanacearum species complex subgroups are strictly regulated as quarantine pests. Biologically meaningful and consistent nomenclature is essential for organisms that have major economic and regulatory importance, such as plant-pathogenic Ralstonia. There are currently three species of Ralstonia wilt pathogens: R. pseudosolanacearum (corresponding to two phylogenetic groups that are described in the literature as phylotypes I and III), R. solanacearum (phylotypes IIA, IIB, and IIC), and R. syzygii (phylotype IV, containing three subspecies: subsp. syzygii, subsp. celebensis, and subsp. indonesiensis). A recent paper proposed reclassifying phylotype I as a new species named “Ralstonia nicotianae.” The purpose of this commentary is to register our objection to the taxon “Ralstonia nicotianae.” [Figure: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
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- 2023
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12. De novo transcriptome profiling and development of novel secondary metabolites based genic SSRs in medicinal plant Phyllanthus emblica L. (Aonla)
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Bhuvnesh Kapoor, Megha Sharma, Rajnish Sharma, Ashwini Zadokar, Anamika Thakur, Parul Sharma, Suresh Kumar, K. Pung Rozar, Kewat Sanjay Kumar, Nagaraj Hegde, and Devendra Pandey
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Medicine ,Science - Abstract
Abstract Phyllanthus emblica (Aonla, Indian Gooseberry) is known to have various medicinal properties, but studies to understand its genetic structure are limited. Among the various secondary metabolites, ascorbic acid, flavonoids, terpenoids, phenols and tannins possess great potential for its pharmacological applications. Keeping this consideration, we assembled the transcriptome using the Illumina RNASeq500 platform, generating 39,933,248 high-quality paired-end reads assembled into 1,26,606 transcripts. A total of 87,771 unigenes were recovered after isoforms and unambiguous sequences deletion. Functional annotation of 43,377 coding sequences against the NCBI non-redundant (Nr) database search using BlastX yielded 38,692 sequences containing blast hits and found 4685 coding sequences to be unique. The transcript showed maximum similarity to Hevea brasilensis (16%), followed by to Jatropha curcas (12%). Considering key genes involved in the biosynthesis of flavonoids and various classes of terpenoid compounds, thirty EST-SSR primer sequences were designed based on transcriptomic data. Of which, 12 were found to be highly polymorphic with an average of 86.38%. The average value for marker index (MI), effective multiplicity ratio (EMR), resolution power (Rp) and polymorphic information content (PIC) was 7.20, 8.34, 8.64 and 0.80, respectively. Thus, from this study, we developed newly EST-SSRs linked to important genes involved in the secondary metabolites biosynthesis that will be serving as an invaluable genetic resource for crop improvement including the selection of elite genotypes in P. emblica and its closely related Phyllanthaceae species.
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- 2023
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13. Structural and functional characterization of nanobodies that neutralize Omicron variants of SARS-CoV-2
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Katy Cornish, Jiandong Huo, Luke Jones, Parul Sharma, Joseph W. Thrush, Sahar Abdelkarim, Anja Kipar, Siva Ramadurai, Miriam Weckener, Halina Mikolajek, Sai Liu, Imogen Buckle, Eleanor Bentley, Adam Kirby, Ximeng Han, Stephen M. Laidlaw, Michelle Hill, Lauren Eyssen, Chelsea Norman, Audrey Le Bas, John Clarke, William James, James P. Stewart, Miles Carroll, James H. Naismith, and Raymond J. Owens
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nanobodies ,Omicrons ,spike protein ,SARS-CoV-2 ,COVID-19 ,Biology (General) ,QH301-705.5 - Abstract
The Omicron strains of SARS-CoV-2 pose a significant challenge to the development of effective antibody-based treatments as immune evasion has compromised most available immune therapeutics. Therefore, in the ‘arms race’ with the virus, there is a continuing need to identify new biologics for the prevention or treatment of SARS-CoV-2 infections. Here, we report the isolation of nanobodies that bind to the Omicron BA.1 spike protein by screening nanobody phage display libraries previously generated from llamas immunized with either the Wuhan or Beta spike proteins. The structure and binding properties of three of these nanobodies (A8, H6 and B5-5) have been characterized in detail providing insight into their binding epitopes on the Omicron spike protein. Trimeric versions of H6 and B5-5 neutralized the SARS-CoV-2 variant of concern BA.5 both in vitro and in the hamster model of COVID-19 following nasal administration. Thus, either alone or in combination could serve as starting points for the development of new anti-viral immunotherapeutics.
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- 2024
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14. Hypoxia inducible factors inhibit respiratory syncytial virus infection by modulation of nucleolin expression
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Xiaodong Zhuang, Giulia Gallo, Parul Sharma, Jiyeon Ha, Andrea Magri, Helene Borrmann, James M. Harris, Senko Tsukuda, Eleanor Bentley, Adam Kirby, Simon de Neck, Hongbing Yang, Peter Balfe, Peter A.C. Wing, David Matthews, Adrian L. Harris, Anja Kipar, James P. Stewart, Dalan Bailey, and Jane A. McKeating
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Molecular biology ,Omics ,Transcriptomics ,Science - Abstract
Summary: Respiratory syncytial virus (RSV) is a global healthcare problem, causing respiratory illness in young children and elderly individuals. Our knowledge of the host pathways that define susceptibility to infection and disease severity are limited. Hypoxia inducible factors (HIFs) define metabolic responses to low oxygen and regulate inflammatory responses in the lower respiratory tract. We demonstrate a role for HIFs to suppress RSV entry and RNA replication. We show that hypoxia and HIF prolyl-hydroxylase inhibitors reduce the expression of the RSV entry receptor nucleolin and inhibit viral cell-cell fusion. We identify a HIF regulated microRNA, miR-494, that regulates nucleolin expression. In RSV-infected mice, treatment with the clinically approved HIF prolyl-hydroxylase inhibitor, Daprodustat, reduced the level of infectious virus and infiltrating monocytes and neutrophils in the lung. This study highlights a role for HIF-signalling to limit multiple aspects of RSV infection and associated inflammation and informs future therapeutic approaches for this respiratory pathogen.
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- 2024
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15. Multivalent bicyclic peptides are an effective antiviral modality that can potently inhibit SARS-CoV-2
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Katherine U. Gaynor, Marina Vaysburd, Maximilian A. J. Harman, Anna Albecka, Phillip Jeffrey, Paul Beswick, Guido Papa, Liuhong Chen, Donna Mallery, Brian McGuinness, Katerine Van Rietschoten, Steven Stanway, Paul Brear, Aleksei Lulla, Katarzyna Ciazynska, Veronica T. Chang, Jo Sharp, Megan Neary, Helen Box, Jo Herriott, Edyta Kijak, Lee Tatham, Eleanor G. Bentley, Parul Sharma, Adam Kirby, Ximeng Han, James P. Stewart, Andrew Owen, John A. G. Briggs, Marko Hyvönen, Michael J. Skynner, and Leo C. James
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Science - Abstract
Abstract COVID-19 has stimulated the rapid development of new antibody and small molecule therapeutics to inhibit SARS-CoV-2 infection. Here we describe a third antiviral modality that combines the drug-like advantages of both. Bicycles are entropically constrained peptides stabilized by a central chemical scaffold into a bi-cyclic structure. Rapid screening of diverse bacteriophage libraries against SARS-CoV-2 Spike yielded unique Bicycle binders across the entire protein. Exploiting Bicycles’ inherent chemical combinability, we converted early micromolar hits into nanomolar viral inhibitors through simple multimerization. We also show how combining Bicycles against different epitopes into a single biparatopic agent allows Spike from diverse variants of concern (VoC) to be targeted (Alpha, Beta, Delta and Omicron). Finally, we demonstrate in both male hACE2-transgenic mice and Syrian golden hamsters that both multimerized and biparatopic Bicycles reduce viraemia and prevent host inflammation. These results introduce Bicycles as a potential antiviral modality to tackle new and rapidly evolving viruses.
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- 2023
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16. Effects of plastic chemical bisphenol a on gut functions
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Maloy Bikash Mandal, Parul Sharma, and Devarshi Dixit
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bisphenol a ,endocrine disrupting chemicals ,gut motility ,plastic chemicals ,xenoestrogen ,Medicine - Abstract
Bisphenols are chemicals extensively used in plastic industries. Bisphenol A (BPA), a member of the bisphenol family, is widely used in manufacturing epoxy resins and polycarbonate plastic. Epoxy resins have applications in manufacturing the inside lining of metal cans to preserve the quality of canned foods. Polycarbonate plastics have a usage in the manufacture of packaging of food and drinks. BPA-containing plastic is also extensively used in the production of dental implants and sales receipts. There is constant leaching of BPA from the plastic items into the edibles stored in them, particularly when these plastic containers get exposed to high temperatures, non-neutral pH and multiple uses. On consuming these contaminated food items, the gut is the first organ exposed to BPA, followed by all other body systems. In most human body fluid samples examined, BPA is present in a detectable amount. BPA belongs to the family of known endocrine-disrupting chemicals with oestrogenic properties. The increasing alarms regarding the adverse effects of BPA on child development compelled prohibiting products that contain BPA from being used in baby care in many countries worldwide. Being a known xeno-oestrogen, BPA may target the oestrogen receptors in the gut and may affect the various actions mediated by oestrogen in the gut. Besides oestrogenic properties, BPA may have many other hormonal and non-hormonal actions that may affect gut functions. The present article reviews the studies reporting the effect of BPA on gut functions.
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- 2023
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17. Immediate loading of bicortically engaged long implants in maxillary and mandibular esthetic region – A clinicoradiographic evaluation
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Parul Sharma, Shubh Karmanjit Singh Bawa, Vikas Jindal, Ranjan Malhotra, Divye Malhotra, Pankaj Chauhan, and Divya Thakur
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bicortical implant ,dental implant ,immediate loading ,long implant ,osseofixation ,Dentistry ,RK1-715 - Abstract
Background: Bicortical engagement is the engagement of nasal cortical plate and basal cortical plate in maxillary and mandibular esthetic zone, respectively. These are longer implants which offer osseointegration along with high osseofixation. Increased length of implant provides increased bone–implant contact offering primary stability which permits immediate loading. Aim: The aim of the study was to clinicoradiographically evaluate immediate loading in bicortically engaged long implants in maxillary and mandibular esthetic region. Materials and Methods: Thirty patients with missing teeth in esthetic region were selected for the study. Implants were placed in both arches engaging nasal cortex and basal bone wherever required. One-time definitive abutment was placed and immediate loading was done. Results: No failure was observed in the study period of 9 months. The mean insertion and reverse torque was 66.67 ± 6.794 and 41.67 ± 3.101, respectively, indicating high primary stability. No pain, discomfort, infection, or implant mobility was observed. The mean crestal bone loss changes were statistically insignificant. Conclusion: Hundred percent implant survival was observed.
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- 2023
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18. FLAgellum Member 8 modulates extravascular distribution of African trypanosomes.
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Estefanía Calvo-Alvarez, Jean Marc Tsagmo Ngoune, Parul Sharma, Anneli Cooper, Aïssata Camara, Christelle Travaillé, Aline Crouzols, Annette MacLeod, and Brice Rotureau
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Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Abstract
In the mammalian host, the biology of tissue-dwelling Trypanosoma brucei parasites is not completely understood, especially the mechanisms involved in their extravascular colonization. The trypanosome flagellum is an essential organelle in multiple aspects of the parasites' development. The flagellar protein termed FLAgellar Member 8 (FLAM8) acts as a docking platform for a pool of cyclic AMP response protein 3 (CARP3) that is involved in signaling. FLAM8 exhibits a stage-specific distribution suggesting specific functions in the mammalian and vector stages of the parasite. Analyses of knockdown and knockout trypanosomes in their mammalian forms demonstrated that FLAM8 is not essential in vitro for survival, growth, motility and stumpy differentiation. Functional investigations in experimental infections showed that FLAM8-deprived trypanosomes can establish and maintain an infection in the blood circulation and differentiate into insect transmissible forms. However, quantitative bioluminescence imaging and gene expression analysis revealed that FLAM8-null parasites exhibit a significantly impaired dissemination in the extravascular compartment, that is restored by the addition of a single rescue copy of FLAM8. In vitro trans-endothelial migration assays revealed significant defects in trypanosomes lacking FLAM8. FLAM8 is the first flagellar component shown to modulate T. brucei distribution in the host tissues, possibly through sensing functions, contributing to the maintenance of extravascular parasite populations in mammalian anatomical niches, especially in the skin.
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- 2023
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19. Genomic delineation and description of species and within-species lineages in the genus Pantoea
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Katherine C. Crosby, Mariah Rojas, Parul Sharma, Marcela A. Johnson, Reza Mazloom, Brian H. Kvitko, Theo H. M. Smits, Stephanus N. Venter, Teresa A. Coutinho, Lenwood S. Heath, Marike Palmer, and Boris A. Vinatzer
- Subjects
Pantoea ,taxonomy ,genomics ,reverse ecology ,core genome ,pangenome analysis ,Microbiology ,QR1-502 - Abstract
As the name of the genus Pantoea (“of all sorts and sources”) suggests, this genus includes bacteria with a wide range of provenances, including plants, animals, soils, components of the water cycle, and humans. Some members of the genus are pathogenic to plants, and some are suspected to be opportunistic human pathogens; while others are used as microbial pesticides or show promise in biotechnological applications. During its taxonomic history, the genus and its species have seen many revisions. However, evolutionary and comparative genomics studies have started to provide a solid foundation for a more stable taxonomy. To move further toward this goal, we have built a 2,509-gene core genome tree of 437 public genome sequences representing the currently known diversity of the genus Pantoea. Clades were evaluated for being evolutionarily and ecologically significant by determining bootstrap support, gene content differences, and recent recombination events. These results were then integrated with genome metadata, published literature, descriptions of named species with standing in nomenclature, and circumscriptions of yet-unnamed species clusters, 15 of which we assigned names under the nascent SeqCode. Finally, genome-based circumscriptions and descriptions of each species and each significant genetic lineage within species were uploaded to the LINbase Web server so that newly sequenced genomes of isolates belonging to any of these groups could be precisely and accurately identified.
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- 2023
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20. Observation of a quality improvement initiative to contextually adapt and use Robson classification in real time to collect data around CS delivery and to develop strategies to reduce CS rate
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Rajeev Ranjan, Parul Sharma, Mahtab Singh, Shailja Sinha, Prabha Kumari, Camelia Maitra, and Shalini Bansal
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Medicine (General) ,R5-920 - Published
- 2023
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21. Sequential Infection with Influenza A Virus Followed by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Leads to More Severe Disease and Encephalitis in a Mouse Model of COVID-19
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Jordan J. Clark, Rebekah Penrice-Randal, Parul Sharma, Xiaofeng Dong, Shaun H. Pennington, Amy E. Marriott, Stefano Colombo, Andrew Davidson, Maia Kavanagh Williamson, David A. Matthews, Lance Turtle, Tessa Prince, Grant L. Hughes, Edward I. Patterson, Ghada Shawli, Daniele F. Mega, Krishanthi Subramaniam, Jo Sharp, Joseph D. Turner, Giancarlo A. Biagini, Andrew Owen, Anja Kipar, Julian A. Hiscox, and James P. Stewart
- Subjects
Severe Acute Respiratory Syndrome Coronavirus-2 ,influenza A virus ,co-infection ,transcriptomic signatures ,Microbiology ,QR1-502 - Abstract
COVID-19 is a spectrum of clinical symptoms in humans caused by infection with SARS-CoV-2. The coalescence of SARS-CoV-2 with seasonal respiratory viruses, particularly influenza viruses, is a global health concern. To understand this, transgenic mice expressing the human ACE2 receptor (K18-hACE2) were infected with influenza A virus (IAV) followed by SARS-CoV-2 and the host response and effect on virus biology was compared to K18-hACE2 mice infected with IAV or SARS-CoV-2 alone. The sequentially infected mice showed reduced SARS-CoV-2 RNA synthesis, yet exhibited more rapid weight loss, more severe lung damage and a prolongation of the innate response compared to the singly infected or control mice. Sequential infection also exacerbated the extrapulmonary encephalitic manifestations associated with SARS-CoV-2 infection. Conversely, prior infection with a commercially available, multivalent live-attenuated influenza vaccine (Fluenz Tetra) elicited the same reduction in SARS-CoV-2 RNA synthesis, albeit without the associated increase in disease severity. This suggests that the innate immune response stimulated by IAV inhibits SARS-CoV-2. Interestingly, infection with an attenuated, apathogenic influenza vaccine does not result in an aberrant immune response and enhanced disease severity. Taken together, the data suggest coinfection (‘twinfection’) is deleterious and mitigation steps should be instituted as part of the comprehensive public health and management strategy of COVID-19.
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- 2024
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22. Author Correction: Para-infectious brain injury in COVID-19 persists at follow-up despite attenuated cytokine and autoantibody responses
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Benedict D. Michael, Cordelia Dunai, Edward J. Needham, Kukatharmini Tharmaratnam, Robyn Williams, Yun Huang, Sarah A. Boardman, Jordan J. Clark, Parul Sharma, Krishanthi Subramaniam, Greta K. Wood, Ceryce Collie, Richard Digby, Alexander Ren, Emma Norton, Maya Leibowitz, Soraya Ebrahimi, Andrew Fower, Hannah Fox, Esteban Tato, Mark A. Ellul, Geraint Sunderland, Marie Held, Claire Hetherington, Franklyn N. Egbe, Alish Palmos, Kathy Stirrups, Alexander Grundmann, Anne-Cecile Chiollaz, Jean-Charles Sanchez, James P. Stewart, Michael Griffiths, Tom Solomon, Gerome Breen, Alasdair J. Coles, Nathalie Kingston, John R. Bradley, Patrick F. Chinnery, Jonathan Cavanagh, Sarosh R. Irani, Angela Vincent, J. Kenneth Baillie, Peter J. Openshaw, Malcolm G. Semple, ISARIC4C Investigators, COVID-CNS Consortium, Leonie S. Taams, and David K. Menon
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Science - Published
- 2024
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23. Drought and heat stress mediated activation of lipid signaling in plants: a critical review
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Parul Sharma, Nita Lakra, Alisha Goyal, Yogesh K. Ahlawat, Abbu Zaid, and Kadambot H. M. Siddique
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lipid signaling ,abiotic stress ,lipid remodeling ,phosphatidic acid ,inositol phospholipids ,stress tolerance ,Plant culture ,SB1-1110 - Abstract
Lipids are a principal component of plasma membrane, acting as a protective barrier between the cell and its surroundings. Abiotic stresses such as drought and temperature induce various lipid-dependent signaling responses, and the membrane lipids respond differently to environmental challenges. Recent studies have revealed that lipids serve as signal mediators forreducing stress responses in plant cells and activating defense systems. Signaling lipids, such as phosphatidic acid, phosphoinositides, sphingolipids, lysophospholipids, oxylipins, and N-acylethanolamines, are generated in response to stress. Membrane lipids are essential for maintaining the lamellar stack of chloroplasts and stabilizing chloroplast membranes under stress. However, the effects of lipid signaling targets in plants are not fully understood. This review focuses on the synthesis of various signaling lipids and their roles in abiotic stress tolerance responses, providing an essential perspective for further investigation into the interactions between plant lipids and abiotic stress.
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- 2023
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24. 'I lost my faith and stopped taking the medicines' – need for an intervention model based on health belief constructs for improving adherence to tuberculosis treatment
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Nitinkumar Solanki, Parul Sharma, Mihir P Rupani, and Bharat Goswami
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constructivism paradigm ,default ,health behavior theory ,lost to follow up ,treatment outcome ,Medicine - Abstract
Background: India is reporting the highest number of tuberculosis (TB) cases worldwide. The health belief model has proved beneficial to understand health-related behaviors among patients with TB. We explored the reasons and solutions for non-adherence to the treatment of TB using the constructs of the health belief model. Methods: We conducted in-depth interviews among patients who were reported 'lost to follow up' (LFU) and among the service providers under the national TB program in the Patan district based on the constructs of the health belief model – perceived susceptibility, perceived severity, perceived benefits, and perceived barriers. All the interviews were audio-recorded and transcripts were analyzed using thematic analysis. Results: The analysis resulted in nine major reasons for LFU which were explained under the health belief model constructs. Perceived susceptibility was reflected by lack of support from health workers, losing faith in government, and dependence on alcohol. Negative counseling by quacks explained perceived severity, while improvement in symptoms corroborated with the perceived benefits. Side effects to anti-TB drugs, high pill burden, stigma, and financial constraints were the perceived barriers reported by the patients. Conclusions: The health belief model explains treatment non-adherence behavior among patients with tuberculosis in India. To eliminate TB, program managers in India need to design a comprehensive intervention model to counsel the patients on the benefits of completing treatment, generate awareness to dispel the myths surrounding the disease, and instill confidence through regular visits by health workers. Primary care physicians should try incorporating counselling of patients with TB in their routine care to reduce LFU.
- Published
- 2022
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25. Facility Based Management of Child Malnutrition- Lesson Learnt from a North Gujarat Study
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Nitin Solanki, Parul Sharma, and Rakesh Ninama
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child malnutrition treatment centre ,facility based management ,malnutrition ,nutrition rehabilitation centre ,Medicine ,Public aspects of medicine ,RA1-1270 - Abstract
Introduction: Malnutrition is a key health problem in India and Gujarat. Mission BalamSukham was launched to overcome malnutrition. Facility-based management of malnutrition is one of two components of this program. Objectives: 1. To evaluate Strengths, Weaknesses, Opportunities and Challenges (or Threats) of Child Malnutrition Treatment Centre (CMTC) and Nutrition Rehabilitation Centre (NRC). 2. To project into areas that needs improvement to overcome the centres’ weaknesses and challenges. Method: In-depth interviews were taken for health workers and beneficiaries of NRC and CMTC of Patan district till saturation of responses. Transcripts were made and themes were analysed based on the SWOC matrix. Results: Major issues identified by the study were absence of continuous financial support to operationalize CMTCs selected under Gatishil Gujarat program, Absence of Paediatrician, lack of awareness regarding child nutrition over night stay at centre and quality of training. Conclusion: Some internal weaknesses and strengths were acknowledged. Only facility-based management of SAM children did not make a difference in community. Training of ASHA and Anganwadi worker about nutritional counselling, screening and monitoring of SAM child is needed to strengthen the community-based management of SAM children.
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- 2021
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26. Experimental Evidence Pointing to Rain as a Reservoir of Tomato Phyllosphere Microbiota
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Marco E. Mechan Llontop, Long Tian, Parul Sharma, Logan Heflin, Vivian Bernal-Galeano, David C. Haak, Christopher R. Clarke, and Boris A. Vinatzer
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Plant culture ,SB1-1110 ,Microbial ecology ,QR100-130 ,Plant ecology ,QK900-989 - Abstract
Plant microbiota play essential roles in plant health and crop productivity. Comparisons of community composition have suggested seed, soil, and the atmosphere as reservoirs of phyllosphere microbiota. After finding that leaves of tomato (Solanum lycopersicum) plants exposed to rain carried a higher microbial population size than leaves of tomato plants not exposed to rain, we experimentally tested the hypothesis that rain is a thus-far-neglected reservoir of phyllosphere microbiota. Therefore, rain microbiota were compared with phyllosphere microbiota of tomato plants either treated with concentrated rain microbiota, filter-sterilized rain, or sterile water. Based on 16S ribosomal RNA amplicon sequencing, 104 operational taxonomic units (OTUs) significantly increased in relative abundance after inoculation with concentrated rain microbiota but no OTU significantly increased after treatment with either sterile water or filter-sterilized rain. Some of the genera to which these 104 OTUs belonged were also found at higher relative abundance on tomato plants exposed to rain outdoors than on tomato plants grown protected from rain in a commercial greenhouse. Taken together, these results point to precipitation as a reservoir of phyllosphere microbiota and show the potential of controlled experiments to investigate the role of different reservoirs in the assembly of phyllosphere microbiota.
- Published
- 2021
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27. Ultrastructural and molecular approach as a tool for taxonomic identification of aquatic macroinvertebrates: A review
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Aseem Grover, Parul Sharma, Radhika Sharma, and Reshma Sinha
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Aquatic insects ,Macroinvertebrates ,Molecular markers ,Electron microscopy ,DNA barcoding ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Aquatic insects require water at one or other phase for the completion of their life cycle. The insect larvae serve as food for larger invertebrates and vertebrates in aquatic food chain. Their diversity, number, and abundance act as water quality indicators, and thus species are classified accordingly as pollution tolerant or sensitive. So, identifying these aquatic larvae and macroinvertebrates are important for determining the biodiversity, and classification of insect species, followed by assessment of water health, and understanding the influence of climate change and anthropogenetic activities on these. Chances of misidentification have been reported due to loss of expertise, absence of taxonomic keys for larvae or intermediate stages, or damaged structure during collection or preservation. Recent advances in molecular and electron microscopy have revolutionized the identification procedure. Scanning electron microscopy detail the structure and morphology of the insect, while molecular techniques employing PCRs, DNA barcoding, and molecular markers allow the identification of the insects from any tissue (whole/part), and comparing the nucleotide sequences helps in the evaluating the family tree and lineage. The review summarizes the present status of aquatic invertebrates identification and the importance of these two techniques in the taxonomic identification of aquatic insects.
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- 2022
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28. Assessing the heat sensitivity of Urdbean (Vigna mungo L. Hepper) genotypes involving physiological, reproductive and yield traits under field and controlled environment
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Shikha Chaudhary, Uday Chand Jha, Pronob J. Paul, P. V. Vara Prasad, Kamal Dev Sharma, Sanjeev Kumar, Debjyoti Sen Gupta, Parul Sharma, Sarvjeet Singh, Kadambot H. M. Siddique, and Harsh Nayyar
- Subjects
urdbean ,heat stress ,genetic variability ,physiological traits ,biochemical traits ,Plant culture ,SB1-1110 - Abstract
The rising temperatures are seriously impacting the food crops, including urdbean; hence efforts are needed to identify the sources of heat tolerance in such crops to ensure global food security. In the present study, urdbean genotypes were evaluated for heat tolerance under natural outdoor for two consecutive years (2018, 2019) and subsequently in the controlled environment of the growth chamber to identify high temperature tolerant lines. The genotypes were assessed involving few physiological traits (membrane damage, chlorophyll, photosynthetic efficiency, stomatal conductance, lipid peroxidation), reproductive traits (pollen germination % and pollen viability %) and yield related traits (total number of pods plant-1, total seeds plant-1, single seed weight and seed yield plant-1). Based upon these tested traits, PantU31, Mash114, UTTARA and IPU18-04 genotypes were identified as promising genotypes for both years under heat stress condition. Further confirming heat tolerance, all these four tolerant and four sensitive genotypes were tested under controlled environment under growth chamber condition. All these four genotypes PantU31, Mash114, UTTARA and IPU18-04 showed high chlorophyll content, photosynthetic efficiency, stomatal conductance, leaf area, pods plant-1, total seeds plant-1 and low reduction in pollen germination % and pollen viability under stress heat stress condition. Moreover, yield and yield related traits viz., pods plant-1, seeds plant-1, single seed weight and seed yield plant-1 showed very strong positive correlation with pollen germination and pollen viability except electrolyte leakage and malondialdehyde content. Thus, these genotypes could be potentially used as donors for transferring heat tolerance trait to the elite yet heat-sensitive urdbean cultivars.
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- 2022
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29. A potent SARS-CoV-2 neutralising nanobody shows therapeutic efficacy in the Syrian golden hamster model of COVID-19
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Jiandong Huo, Halina Mikolajek, Audrey Le Bas, Jordan J. Clark, Parul Sharma, Anja Kipar, Joshua Dormon, Chelsea Norman, Miriam Weckener, Daniel K. Clare, Peter J. Harrison, Julia A. Tree, Karen R. Buttigieg, Francisco J. Salguero, Robert Watson, Daniel Knott, Oliver Carnell, Didier Ngabo, Michael J. Elmore, Susan Fotheringham, Adam Harding, Lucile Moynié, Philip N. Ward, Maud Dumoux, Tessa Prince, Yper Hall, Julian A. Hiscox, Andrew Owen, William James, Miles W. Carroll, James P. Stewart, James H. Naismith, and Raymond J. Owens
- Subjects
Science - Abstract
Neutralizing nanobodies (Nb) are of considerable interest as therapeutic agents for COVID-19 treatment. Here, the authors functionally and structurally characterize Nbs that bind with high affinity to the receptor binding domain of the SARS-CoV-2 spike protein and show that an engineered homotrimeric Nb prevents disease progression in a Syrian hamster model of COVID-19 when administered intranasally.
- Published
- 2021
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30. Putrescine Mitigates High Temperature Effects by Modulating Morpho-Physiological and Biochemical Attributes in Brassica juncea Seedlings
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Parul Sharma, Nita Lakra, Yogesh Ahlawat, Abbu Zaid, Ahmed M. Abd-ElGawad, Hosam O. Elansary, and Anita Gupta
- Subjects
high temperature ,putrescine ,Brassica juncea ,chlorophyll ,stomatal density ,antioxidant enzymes ,Agriculture - Abstract
A variety of environmental issues are affecting crops all across the world, but rising temperatures are posing the greatest threat. High temperature has been found to drastically inhibit seedling emergence and cause leaf necrosis at the seedling stage, which results in poor plant stand and significantly decreased yields. Polyamines (PAs) are positively charged, low-molecular-weight aliphatic nitrogenous bases present in all living organisms and are involved in various biological processes in plant growth and development, including senescence and response to different abiotic stresses. Putrescine (Put) functions as a master growth regulator that promotes optimal plant development and greater stress tolerance. Here, the current study aimed to elucidate how Put (1 mM) functions in reducing the negative impacts of high temperature on four varieties of Brassica juncea (RH-1707, RH-1708, RH-1566 and RH-1999-42). Exposure of plants to high temperature resulted in decrease in growth parameters, chlorophyll content and relative water content. Simultaneously, increases were found in antioxidant enzymes, electrolyte leakage, lipid peroxidation, hydrogen peroxide content and stomatal density. High temperature more significantly affected varieties RH-1707 and RH-1708, while RH-1566 and RH-1999-42 showed lesser effects. Exogenous application of Put mitigated the negative impacts of high temperature by enhancing growth, chlorophyll content, relative water content and antioxidant enzyme activities and, simultaneously, it reduces oxidative damage and stomatal density. This study specifies that varieties RH-1707 and RH-1708 are sensitive whereas RH-1566 and RH-1999-42 are tolerant of high temperature and provides an insight into the effectiveness of Put in mitigating the effects of high temperature to a significant extent in B. juncea seedlings.
- Published
- 2023
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31. The Stereotypic Response of the Pulmonary Vasculature to Respiratory Viral Infections: Findings in Mouse Models of SARS-CoV-2, Influenza A and Gammaherpesvirus Infections
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Simon De Neck, Rebekah Penrice-Randal, Jordan J. Clark, Parul Sharma, Eleanor G. Bentley, Adam Kirby, Daniele F. Mega, Ximeng Han, Andrew Owen, Julian A. Hiscox, James P. Stewart, and Anja Kipar
- Subjects
severe acute respiratory syndrome coronavirus 2 ,influenza A virus ,murine gammaherpesvirus 68 ,mouse models ,lung ,vasculitis ,Microbiology ,QR1-502 - Abstract
The respiratory system is the main target of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease 19 (COVID-19) where acute respiratory distress syndrome is considered the leading cause of death. Changes in pulmonary blood vessels, among which an endothelialitis/endotheliitis has been particularly emphasized, have been suggested to play a central role in the development of acute lung injury. Similar vascular changes are also observed in animal models of COVID-19. The present study aimed to determine whether the latter are specific for SARS-CoV-2 infection, investigating the vascular response in the lungs of mice infected with SARS-CoV-2 and other respiratory viruses (influenza A and murine gammaherpesvirus) by in situ approaches (histology, immunohistology, morphometry) combined with RNA sequencing and bioinformatic analysis. Non-selective recruitment of monocytes and T and B cells from larger muscular veins and arteries was observed with all viruses, matched by a comparable transcriptional response. There was no evidence of endothelial cell infection in any of the models. Both the morphological investigation and the transcriptomics approach support the interpretation that the lung vasculature in mice mounts a stereotypic response to alveolar and respiratory epithelial damage. This may have implications for the treatment and management of respiratory disease in humans.
- Published
- 2023
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32. A case report on anesthesia management for a patient with deep neck space infection (retropharyngeal and parapharyngeal abscess)
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Aastha Jindal, Amit Kumar, Kamlesh Kunwar Shekhawat, and Parul Sharma
- Subjects
airway management ,anaesthetic management ,tracheostomy ,Dentistry ,RK1-715 - Abstract
A 44-year-old woman complained of neck swelling, discomfort, and swallowing difficulties. She was admitted to the hospital on an emergency basis for incision and drainage. Deep neck space infection was diagnosed using a neck X-ray, ultrasonography, and contrast enhanced computed tomography. The successful anesthetic management of this patient at the Pacific Institute of Medical Sciences in Udaipur is presented here.
- Published
- 2022
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33. Assessment of awareness regarding health hazards of plastic chemicals and their warning label among a sample population of Varanasi City: A cross-sectional study
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Parul Sharma, Priyanka Bhagat, M B Mandal, and T B Singh
- Subjects
bisphenol a free plastic ,plastic chemicals ,resin identification codes ,Pharmacy and materia medica ,RS1-441 ,Analytical chemistry ,QD71-142 - Abstract
Background: Plastic containers are widely used to store and serve edibles. In the production of some types of plastic, chemicals such as bisphenol A (BPA) and bisphenol S (BPS) are used. These chemicals leach from the plastic containers into the edibles, get access into the biological systems, and cause a toxic impact on health. Aim: This cross-sectional survey was planned to assess the usage of food contact plastic and awareness regarding the health hazards of plastic chemicals and warning labels on plastic items among a sample population of Varanasi city. Materials and Methods: Data were collected by interviewing the 556 adult participants, using a prevalidated structured questionnaire. Chi-square test was used to test the association and P < 0.05 was considered as significant. Results: Most of the participants were found to be following routine practices during cooking and storage of edibles which may expose them to BPA and BPS through the gut. Although many participants were aware that plastic may contain some type of chemicals which may enter the human body and harm human health in some way, they lacked precise knowledge regarding warning label like “BPA free plastic” “plastic containing BPA” and “food grade plastic.” Furthermore, none of the participants could recognize the “resin identification codes” correctly. Conclusion: Most of the participants had only elementary awareness of health risk of plastic usage. A significant number of participants lacked crucial information that can help them to make healthy choices as a consumer and use safe alternatives of plastic.
- Published
- 2021
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34. The role of familial characteristics on the nutritional status of preschool children: A comparative study on rural and urban children
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Shaili Vyas, Sushmita Sonkar, Neha Sharma, Ashok Kumar Srivastava, Parul Sharma, and Kajal Srivastava
- Subjects
familial characteristics ,rural ,urban ,underfive ,undernutrition ,Public aspects of medicine ,RA1-1270 - Abstract
Introduction: Nutritional status of underfive children is a proxy indicator for assessing the nutrition of the entire community and also the key predictor of child survival. While several studies have focused on the determinants of child's nutrition status in India, little attention has been given to the aspect of rural-urban variation in child's nutritional status in terms of their determinants. The present study is aimed to ascertain the magnitude and the factors affecting the malnutrition across rural & urban areas of Uttar Pradesh. Methodology: A community-based study was conducted for 2 months in the field practice areas of a tertiary care hospital. Multistage random sampling technique was used for the selection of study subjects. A total of 117 under-five children were studied equally from rural and urban area. A pre-designed pre-tested proforma was used to assess the feeding practices. Stunting and underweight were used to proxy the child nutrition status. Data were evaluated on SPSS version 17. Chi-square test was used to find out the association of family characteristics with nutritional status in the two areas. Results: Undernutrition was more prevalent in rural children than their urban counterparts. It was seen that in the rural areas, 1-3 year children were more wasted & underwt whereas 0-1 yr children were more stunted, whereas in urban areas0-1 yr children were more affected in terms of wasted & underwt whereas stunting was more prevalent in 3-5 yr children. Religion, family size, Environment & Social Class was found to have association with significant association with Undernutrition. Parental Education as well as Father's Occupation was also found to have Significant association with the nutritional status of underfive children. Conclusion: Familial characteristics have an important bearing on the nutritional status of underfive children. Hence Improvement in literacy especially female literacy will go a long way in improving the nutritional status of the child. Strategies are needed to improve the economic status of the community.
- Published
- 2021
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35. Performance analysis of deep learning CNN models for disease detection in plants using image segmentation
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Parul Sharma, Yash Paul Singh Berwal, and Wiqas Ghai
- Subjects
Machine learning ,Plant disease detection ,Image segmentation ,Agriculture (General) ,S1-972 ,Information technology ,T58.5-58.64 - Abstract
Food security for the 7 billion people on earth requires minimizing crop damage by timely detection of diseases. Most deep learning models for automated detection of diseases in plants suffer from the fatal flaw that once tested on independent data, their performance drops significantly. This work investigates a potential solution to this problem by using segmented image data to train the convolutional neural network (CNN) models. As compared to the F-CNN model trained using full images, S-CNN model trained using segmented images more than doubles in performance to 98.6% accuracy when tested on independent data previously unseen by the models even with 10 disease classes. Not only this, by using tomato plant and target spot disease type as an example, we show that the confidence of self-classification for S-CNN model improves significantly over F-CNN model. This research work brings applicability of automated methods closer to non-experts for timely detection of diseases.
- Published
- 2020
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36. Isolation of gene conferring salt tolerance from halophilic bacteria of Lunsu, Himachal Pradesh, India
- Author
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Sonika Gupta, Parul Sharma, Kamal Dev, and Anuradha Sourirajan
- Subjects
Halobacillus trueperi ,Lunsu ,Salt tolerance clone ,Permease ,Multidrug transport ,Recombinant ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Abstract Background Halophiles offer an attractive source of genes conferring salt tolerance. Halobacillus trueperi SS1 strain of Lunsu, Himachal Pradesh, India, a strict halophile, was exploited to isolate and clone the genes for salt tolerance. The genomic library of BamH1 digest of H. trueperi SS1 was constructed in pUC19, and recombinants were screened for salt tolerance on an LB medium containing ampicillin (100 μg/ml) and NaCl (0 to 1.5 M). Results One recombinant clone named as salt-tolerant clone (STC) conferred salt tolerance to host Escherichia coli/DH5α, which showed growth in the LB medium supplemented with ampicillin and 1.2 M NaCl. Restriction digestion and PCR analysis revealed the presence of an insert of approximately 2000 bp in the STC. DNA sequencing of the 2-kb insert on both strands yielded a sequence of 2301 nucleotides. Protein BLAST analysis of 2301-bp sequence of H. trueperi SS1 present in STC showed 97% identity to multidrug transport ATP binding/permease protein of Halobacillus karajensis. The insert contained in STC was subcloned into pGEX4T2 vector, and the recombinant clone STC/pGEX4T2 conferred salt tolerance to the bacterial host E. coli. Conclusions The present study led to the isolation of salt tolerance gene encoding a putative multidrug transport ATP binding/permease protein from H. trueperi SS1. The salt tolerance gene can be subcloned for transferring salt tolerance traits into agricultural crop plants for cultivation in saline and coastal lands.
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- 2020
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37. A Systematic Comparative Assessment of Certification Standards in India and Suggested Evaluation Frameworks
- Author
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Madhu Verma, Parul Sharma, and Elphin Tom Joe
- Subjects
sustainability standards ,sustainable agriculture ,differentiated certification ,standards criteria ,spice certification ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Sustainable agriculture has the potential of addressing major social and environmental challenges affecting agriculture in India. One of the ways to promote sustainable agriculture is through certification. This refers to the broad family of voluntary standards set by third-party against which producers are independently audited and certified. An appropriate sustainability framework can guide more effective food procurement by accounting for context in the form of demand architecture and production systems. The study therefore presents a review of five different sustainability certifications prevalent in India with focus on spice certification. These have been analyzed against value drivers, impact pathways to different capitals, sustainability issues, and the stakeholders involved. The results indicate that these certifications cover most common issues with no evident differences indicating the possibility for a need for differentiation to allow consumers choose based on their preferred concerns. An evaluation framework is prepared to make a case for evaluating these certification initiatives to outline the differential parameters.
- Published
- 2022
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38. CRISPR-Cas-Led Revolution in Diagnosis and Management of Emerging Plant Viruses: New Avenues Toward Food and Nutritional Security
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Susheel Kumar Sharma, Om Prakash Gupta, Neeta Pathaw, Devender Sharma, Albert Maibam, Parul Sharma, Jyotsana Sanasam, Suhas Gorakh Karkute, Sandeep Kumar, and Bijoya Bhattacharjee
- Subjects
CRISPR-Cas ,viral resistance ,genome editing ,diagnostics ,management ,CRISPR regulatory framework ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Plant viruses pose a serious threat to agricultural production systems worldwide. The world's population is expected to reach the 10-billion mark by 2057. Under the scenario of declining cultivable land and challenges posed by rapidly emerging and re-emerging plant pathogens, conventional strategies could not accomplish the target of keeping pace with increasing global food demand. Gene-editing techniques have recently come up as promising options to enable precise changes in genomes with greater efficiency to achieve the target of higher crop productivity. Of genome engineering tools, clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) proteins have gained much popularity, owing to their simplicity, reproducibility, and applicability in a wide range of species. Also, the application of different Cas proteins, such as Cas12a, Cas13a, and Cas9 nucleases, has enabled the development of more robust strategies for the engineering of antiviral mechanisms in many plant species. Recent studies have revealed the use of various CRISPR-Cas systems to either directly target a viral gene or modify a host genome to develop viral resistance in plants. This review provides a comprehensive record of the use of the CRISPR-Cas system in the development of antiviral resistance in plants and discusses its applications in the overall enhancement of productivity and nutritional landscape of cultivated plant species. Furthermore, the utility of this technique for the detection of various plant viruses could enable affordable and precise in-field or on-site detection. The futuristic potential of CRISPR-Cas technologies and possible challenges with their use and application are highlighted. Finally, the future of CRISPR-Cas in sustainable management of viral diseases, and its practical utility and regulatory guidelines in different parts of the globe are discussed systematically.
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- 2021
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39. Impact of educational intervention on oral health knowledge among AYUSH workers in Sriganganagar, Rajasthan – A quasi experimental study
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Parul Sharma, Simarpreet Singh, Anmol Mathur, Manu Batra, Vikram Pal Aggarwal, and Mankirat Kaur Gill
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brushing ,health care workers ,knowledge ,oral care ,oral hygiene ,Dentistry ,RK1-715 - Abstract
Background: Young children receive no dental care though they are frequently visiting AYUSH workers for routine medical check-ups. These checks-ups can be integrated with oral health to uplift the oral health status of children by taking advantage of an existing network of the workforce who has made roots into the existing society. Aims: The aim of this study was to assess the impact of educational intervention on oral health knowledge among AYUSH workers. Materials and Methods: Quasi-experimental study design was used among AYUSH workers registered under RBSK program in the Ganganagar district. A close-ended questionnaire was prepared. The intervention was carried out by a PowerPoint presentation regarding oral health after data collection. The same questionnaire was mailed again to the doctors after 1 month, with 1-week duration to respond back. Statistical analysis was performed using Chi-square and paired t-test using SPSS v22. Chi-square and paired t-test were used for analysis. P value was considered significant at
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- 2020
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40. Endoglucanase gene of M42 aminopeptidase/endoglucanase family from thermophilic Bacillus sp. PW1 and PW2 isolated from Tattapani hot spring, Himachal Pradesh, India
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Divyanshi Sharma, Parul Sharma, Kamal Dev, and Anuradha Sourirajan
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Thermophilic ,Tattapani ,Bacillus ,Endoglucanase ,M42 aminopeptidase/endoglucanase family ,Dual enzyme ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Abstract Background Thermostable cellulases are in constant demand for several biotechnological applications. Two thermophilic bacterial strains PW1 and PW2 isolated from Tattapani hot spring were found to have cellulolytic activity. Subsequently, PW1 and PW2 were identified and mined for genes encoding cellulase activity. Results Sequencing of the 16S rDNA of PW1 and PW2 identified them as Bacillus sp. PW1 (Acc no. KU711837) and Bacillus sp. PW2 (Acc no. KU711838), respectively, which clustered in the clades containing thermophilic members of Bacillus sp. and Geobacillus species. Phylogenetic analysis revealed that despite the morphological and sequence identities, Bacillus sp. PW1 and Bacillus sp. PW2 are different at the genetic level. The cellulase genes (~ 1.1 kb) of the two bacterial strains were amplified using primers designed against related thermophilic cellulases. Sequencing of the cellulase gene amplicons of PW1 and PW2 revealed that they encode proteins of 280 and 206 amino acid residues, respectively. Sequence and domain analysis of the protein products of PW1 and PW2 revealed that they belong to M42 family of aminopeptidase/endoglucanase. The PW2 endoglucanase coding sequence was submitted to Genbank under accession no. MH049504. The structures of putative endoglucanases of PW1 and PW2 were generated using 1VHE.A as template, which showed the presence of vast proportion of random coils. Molecular docking of the modeled endoglucanase proteins with various substrates and products of cellulases showed that carboxymethyl cellulose and maltose exhibit the highest binding affinity, while xylan and glucose the least. Conclusions The two thermophilic bacteria PW1 and PW2 and their endoglucanase gene can be further utilized for recombinant production of thermostable cellulases for their application in industries.
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- 2019
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41. Genetic Landscape of Rare Autoinflammatory Disease Variants in Qatar and Middle Eastern Populations Through the Integration of Whole-Genome and Exome Datasets
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Parul Sharma, Abhinav Jain, and Vinod Scaria
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autoinflammatory disease ,Qatar ,Middle East ,genome ,epidemiology ,Genetics ,QH426-470 - Abstract
Rare monogenic autoinflammatory diseases are a group of recurrent inflammatory genetic disorders caused due to genetic variants in over 37 genes. While a number of these disorders have been identified and reported in Middle Eastern populations, the carrier frequency of these genetic variants in the Middle Eastern population is not known. The availability of whole-genome and exome datasets of over 1,000 individuals from Qatar persuaded us to explore the genetic epidemiology of rare autoinflammatory genetic variants. We have systematically analyzed genetic variants in genome-scale datasets from Qatar with a compendium of variants associated with autoinflammatory diseases. The variants were systematically reclassified according to the American College of Medical Genetics and Genomics guidelines for interpretation of variant pathogenicity. Our analysis identified seven pathogenic and likely pathogenic variants with significant differences in their allele frequencies compared to the global population. The cumulative carrier frequency of these variants was found to be 2.58%. Furthermore, our analysis revealed that five genes, implicated in rare autoinflammatory diseases, were under natural selection. To the best of our knowledge, this is the first and most comprehensive study on the population-scale analysis and genetic epidemiology of genetic variants that cause rare autoinflammatory disease in Middle Eastern populations.
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- 2021
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42. DALIA- a comprehensive resource of Disease Alleles in Arab population.
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Aastha Vatsyayan, Parul Sharma, Shrey Gupta, Sumiti Sandhu, Seetha Lakshmi Venu, Vandana Sharma, Bouabid Badaoui, Kaidi Azedine, Serti Youssef, Anna Rajab, Alaaeldin Fayez, Seema Madinur, Anop Ranawat, Kavita Pandhare, Srinivasan Ramachandran, Sridhar Sivasubbu, and Vinod Scaria
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Medicine ,Science - Abstract
The Arab population encompasses over 420 million people characterized by genetic admixture and a consequent rich genetic diversity. A number of genetic diseases have been reported for the first time from the population. Additionally a high prevalence of some genetic diseases including autosomal recessive disorders such as hemoglobinopathies and familial mediterranean fever have been found in the population and across the region. There is a paucity of databases cataloguing genetic variants of clinical relevance from the population. The availability of such a catalog could have implications in precise diagnosis, genetic epidemiology and prevention of disease. To fill in the gap, we have compiled DALIA, a comprehensive compendium of genetic variants reported in literature and implicated in genetic diseases reported from the Arab population. The database aims to act as an effective resource for population-scale and sub-population specific variant analyses, enabling a ready reference aiding clinical interpretation of genetic variants, genetic epidemiology, as well as facilitating rapid screening and a quick reference for evaluating evidence on genetic diseases.
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- 2021
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43. Secondary Attack Rate and Epidemiological Determinants of Secondary High-Risk Contacts of SARS COV-2; Lessons to Learn: A Study from North Gujarat
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Parul Sharma, Nitin Solanki, and Rakesh Ninama
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SAR ,High Risk ,Secondary Contact ,Covid-19 ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Transmission of the SARS CoV-2 disease among secondary contacts is a challenge and must be addressed. Secondary attack rate (SAR) is the probability that an infection occurs among susceptible contact within incubation period. It can be influenced by many factors including personal hygiene habits, behaviors, and characteristics of close-contact environments. Objectives: The study was conducted to finds out the Secondary Attack Rate among Household contacts of Covid19 positive patients; to study the socio-demographic and other factors affecting the Secondary Attack Rate; and to compare the disease outcomes in the primary cases and secondary contacts. Methodology: Observational Retrospective Study was conducted telephonically among randomly selected 444 primary contacts from District Patan and their 1059 secondary high-risk contacts. Results and conclusion: The overall SAR was found to be 5.6% which was highest (21%) in >60 years age group followed by 18 to60 years old.
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- 2020
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44. Is work-associated stress converted into psychological distress among the staff nurses: A hospital-based study
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Anuradha Davey, Parul Sharma, Sanjeev Davey, and Arvind Shukla
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General stress score ,staff nurses ,working environment ,Medicine - Abstract
Introduction: “Stress is the subjective feeling produced by events that are uncontrollable.” Constant stress brings about changes in the balance of hormones in the body which may lead to thoughts that make us feel frustrated, angry, nervous, anxious, etc., The aims of the study are (1) to find out the level of stress among staff nurses; (2) the association between sociodemographic determinants and working environment and stress; and (3) impact on their mental well-being in terms of somatic symptoms, anxiety/insomnia, social dysfunction, severe depression, and on work productivity. Materials and Methods: Institutional-based cross-sectional study; total sample size comprised 100 staff nurses. Data were collected using a two-part questionnaire: Part I: socio demographic variables and working envioronment, Part II: Goldberg and Hillier's 28-item scaled version of the General Health Questionnaire (GHQ-28) used to measure the psychological aspect of quality of life of staff nurses. Results: Hospital nurses reported mild (12%) to moderate/severe (77%) levels of job-related stress. The common stressors were poor attitude of male patients, absence of separate washroom for female nurses, posting in busy departments with increased workload, and inadequate salary. The single most important factor responsible for high levels of stress (70%) among the study subjects was inadequate salary. Conclusion: Assessing stress and job satisfaction is not a onetime action; it requires continuous monitoring and evaluation. Therefore, it is important to further explore how work-associated stress affects nurses, and what factors in their working environment cause the greatest burden.
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- 2019
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45. Neuroinvasion and Neurotropism by SARS-CoV-2 Variants in the K18-hACE2 Mouse
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Frauke Seehusen, Jordan J. Clark, Parul Sharma, Eleanor G. Bentley, Adam Kirby, Krishanthi Subramaniam, Sabina Wunderlin-Giuliani, Grant L. Hughes, Edward I. Patterson, Benedict D. Michael, Andrew Owen, Julian A. Hiscox, James P. Stewart, and Anja Kipar
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Severe Acute Respiratory Syndrome Coronavirus 2 ,mouse model ,COVID-19 ,encephalitis ,microgliosis ,influenza A virus coinfection ,Microbiology ,QR1-502 - Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) not only affects the respiratory tract but also causes neurological symptoms such as loss of smell and taste, headache, fatigue or severe cerebrovascular complications. Using transgenic mice expressing human angiotensin-converting enzyme 2 (hACE2), we investigated the spatiotemporal distribution and pathomorphological features in the CNS following intranasal infection with SARS-CoV-2 variants, as well as after prior influenza A virus infection. Apart from Omicron, we found all variants to frequently spread to and within the CNS. Infection was restricted to neurons and appeared to spread from the olfactory bulb mainly in basally oriented regions in the brain and into the spinal cord, independent of ACE2 expression and without evidence of neuronal cell death, axonal damage or demyelination. However, microglial activation, microgliosis and a mild macrophage and T cell dominated inflammatory response was consistently observed, accompanied by apoptotic death of endothelial, microglial and immune cells, without their apparent infection. Microgliosis and immune cell apoptosis indicate a potential role of microglia for pathogenesis and viral effect in COVID-19 and the possible impairment of neurological functions, especially in long COVID. These data may also be informative for the selection of therapeutic candidates and broadly support the investigation of agents with adequate penetration into relevant regions of the CNS.
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- 2022
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46. Genome Editing Technology for Genetic Amelioration of Fruits and Vegetables for Alleviating Post-Harvest Loss
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Chanchal Kumari, Megha Sharma, Vinay Kumar, Rajnish Sharma, Parul Sharma, Pankaj Kumar, and Mohammad Irfan
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post-harvest loss ,genetic engineering ,genome editing ,CRISPR/Cas9 ,horticultural crops ,fruits ,Technology ,Biology (General) ,QH301-705.5 - Abstract
Food security and crop production are challenged worldwide due to overpopulation, changing environmental conditions, crop establishment failure, and various kinds of post-harvest losses. The demand for high-quality foods with improved nutritional quality is also growing day by day. Therefore, production of high-quality produce and reducing post-harvest losses of produce, particularly of perishable fruits and vegetables, are vital. For many decades, attempts have been made to improve the post-harvest quality traits of horticultural crops. Recently, modern genetic tools such as genome editing emerged as a new approach to manage and overcome post-harvest effectively and efficiently. The different genome editing tools including ZFNs, TALENs, and CRISPR/Cas9 system effectively introduce mutations (In Dels) in many horticultural crops to address and resolve the issues associated with post-harvest storage quality. Henceforth, we provide a broad review of genome editing applications in horticulture crops to improve post-harvest stability traits such as shelf life, texture, and resistance to pathogens without compromising nutritional value. Moreover, major roadblocks, challenges, and their possible solutions for employing genome editing tools are also discussed.
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- 2022
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47. A Computational Study of the Role of Secondary Metabolites for Mitigation of Acid Soil Stress in Cereals Using Dehydroascorbate and Mono-Dehydroascorbate Reductases
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Shuvasish Choudhury, Muhammed Khairujjaman Mazumder, Debojyoti Moulick, Parul Sharma, Sandeep Kumar Tata, Dibakar Ghosh, Hayssam M. Ali, Manzer H. Siddiqui, Marian Brestic, Milan Skalicky, and Akbar Hossain
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AsA-GSH cycle ,aluminum ,cereal crops ,DHAR ,electrostatic interactions ,manganese ,Therapeutics. Pharmacology ,RM1-950 - Abstract
The present study investigates the potential ameliorative role of seven secondary metabolites, viz., ascorbate (AsA), reduced glutathione (GSH), jasmonic acid (JA), salicylic acid (SA), serotonin (5-HT), indole–3–acetic acid (IAA) and gibberellic acid (GA3), for mitigation of aluminium (Al3+) and manganese (Mn2+) stress associated with acidic soils in rice, maize and wheat. The dehydroascorbate reductase (DHAR) and mono-dehydroascorbate reductase (MDHAR) of the cereals were used as model targets, and the analysis was performed using computational tools. Molecular docking approach was employed to evaluate the interaction of these ions (Al3+ and Mn2+) and the metabolites at the active sites of the two target enzymes. The results indicate that the ions potentially interact with the active sites of these enzymes and conceivably influence the AsA–GSH cycle. The metabolites showed strong interactions at the active sites of the enzymes. When the electrostatic surfaces of the metabolites and the ions were generated, it revealed that the surfaces overlap in the case of DHAR of rice and wheat, and MDHAR of rice. Thus, it was hypothesized that the metabolites may prevent the interaction of ions with the enzymes. This is an interesting approach to decipher the mechanism of action of secondary metabolites against the metal or metalloid - induced stress responses in cereals by aiming at specific targets. The findings of the present study are reasonably significant and may be the beginning of an interesting and useful approach towards comprehending the role of secondary metabolites for stress amelioration and mitigation in cereals grown under acidic soil conditions.
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- 2022
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48. Comparative Effect of Pseudomonas aeruginosa, Pseudomonas fluorescens and Pseudomonas putida on the Growth of Replanted Apple
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Parul Sharma, Pankaj Prakash Verma, and Mohinder Kaur
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pseudomonas sp. ,bioformulation ,apple ,replant site ,Microbiology ,QR1-502 - Abstract
Fluorescent Pseudomonas species have a number of traits like antifungal, siderophores, phosphate solubilization, lytic enzymes, HCN, ammonia and plant growth regulators that allow them to act as plant growth promoting and biocontrol agents. They competitively colonize plant roots, play important role in enhancing the growth of plants and in plant disease control. These may be used for soil improvement and to increase soil fertility hence for management of replant problem of apple in Himachal Pradesh. To ensure the sustained availability of PGP and biocontrol agent’s in soil formulation development protocol has to be standardized. On the basis of different PGPR activities three indigenous strains viz., Pseudomonas aeruginosa C, Pseudomonas fluorescens M and Pseudomonas putida L were selected for field studies. In all the treatments with individual (L, M and C) and consortia strains (L+M, L+C, M+C, L+M+C) there was an 8.0 to 86.5 per cent increase in plant height as compared to control. The performance of replanted apple was much better in terms of root colonization capacity, plant establishment and increase in plant growth in terms of plant height, number of nodes and branches over their respective control after fifteen months of plantation.
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- 2017
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49. Correlation of perceived parenting patterns on the personality traits of medical students
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Parul Sharma and Arun Kumar Tandon
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international personality disorder examination scale ,parenting styles ,personality traits ,Psychiatry ,RC435-571 - Abstract
Introduction: Parents are children's primary nurturers, and the responsibility of proper guidance of their children falls on their shoulders. Each parent, however, differs in the way they interact with their children. Do these interactions correlate, in any way, with the way the personality traits that their children develop, when they grow up, is the question that has been tried to answer in this study. Methodology: The study was conducted on 100 MBBS students of the 4th year of MMMC and H Kumarhatti, Solan, Himachal Pradesh, India. Two self-administered questionnaires were administered to the students: (1) International Personality Disorder Examination (IPDE)- ICD 10 was used to screen for the personality traits of students and (2) the Perceptions of Parents Scale to assess the students' retrospective perception of their parents' methods of parenting. Result: MAS and FAS were found to be significantly negatively correlated with paranoid trait among students;MW was significantly negatively correlated with paranoid trait among students; and FI,FASand FW were significantly negatively correlated with borderline trait, and FI was significantly negatively correlated with dependant traits. Conclusion: Parenting style of both parents as seen in the study, does show correlation with development of some personality traits of their wards.
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- 2019
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50. Role of jyotishamati taila abhyanga in the management of the shvitra W.S.R vitiligo: A clinical study
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Priya Kutiyal, Sanjay Gupta, Parul Sharma, and Lalita Sharma
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Shvitra ,Vitiligo ,Jyotishamati Taila Abhyanga ,Environmental sciences ,GE1-350 - Abstract
The word Shvitra means in Sanskrit is Shvitra, which is white patch, without Kandu and inflammation, it present on anywhere of body, In this disease white spots or white discoloration takes place on the skin so it is named as Shvitra. Vitiligo is a long-term condition where pale white patches develop on the skin. It's caused by the lack of melanin, a pigment in the skin. In modern Science PUVA therapy and corticosteroid are used for treatment of disease but they may cause very harmful effect like skin burn, nausea dermatoheliosis that is ultraviolet ageing of skin. There is need Safe easier less complicate cost effective Ayurvedic treatment. Abhyanga stimulates Bhrajjak pitta which is present in the skin and helps restoring color. Jyotishamati Taila has extra medicinal property so it treats disease more comfortably.
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- 2019
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