90 results on '"Nath UK"'
Search Results
2. Yield performance based selection of superior mutant lines from mutant wheat genotypes
- Author
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Sarkar, M, primary, Naher, J, primary, and Nath, UK, primary
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- 2019
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3. Genetic analysis of some agronomic traits in groundnut (Arachis hypogaea L.)
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Alam, MK, primary, Nath, UK, primary, Azad, MAK, primary, Alam, MA, primary, and Khan, AA, primary
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- 2014
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4. Genetic divergence and genetic gain in bread wheat through selection practices
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Ferdous, M, primary, Nath, UK, primary, and Islam, A, primary
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- 1970
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5. In vitro regeneration system in brinjal (Solanum melongena L.) for stress tolerant somaclone selection
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Ferdausi, A, primary, Nath, UK, primary, Das, BL, primary, and Alam, MS, primary
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- 1970
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6. Acute Myeloid Leukemia Presenting as Extensive Arterial and Venous Thrombosis: A Case Report.
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Kachhwaha A, Shah B, Ronanki K, Dalton PM, and Nath UK
- Abstract
Background: Thromboembolism with solid malignancies is a commonly associated feature, which is less common in hematological malignancies. Disseminated intravascular coagulation (DIC) causing thrombotic events is characteristically associated with certain hematological malignancies (e.g., acute promyelocytic leukemia (APL). Acute myeloid leukemia (AML) presenting as extensive thromboembolism is not a common clinical presentation. Anticoagulation in these subsets of patients remains a major challenge since patients often have thrombocytopenia and bleeding manifestations, requiring close monitoring., Case Presentation: A 54-year-old male with a known case of ischemic heart disease on regular anti- platelet therapy presented with acute onset progressive shortness of breath with mild anemia. On further evaluation, the patient was diagnosed with bilateral pulmonary artery and venous thrombosis along with left complete renal and partial inferior vena cava (IVC) thrombosis. The patient was started safely on anticoagulant therapy with normal platelet counts. Later, peripheral smear and immunophenotyping by flow cytometry revealed the diagnosis of acute myeloid leukemia, and the patient started its treatment., Conclusion: Extensive arterial and venous thrombosis at presentation of acute myeloid leukemia is an uncommon finding and needs anticoagulation therapy along with the treatment of the underlying disease. Close monitoring of bleeding and maintaining an adequate platelet count is required, especially in hematological malignancies., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2024
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7. Targeting CERS6-AS1/FGFR1 axis as synthetic vulnerability to constrain stromal cells supported proliferation in Mantle cell lymphoma.
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Jindal U, Mamgain M, Nath UK, Sharma I, Pant B, Sharma A, Gupta A, Rahman K, Yadav S, Singh MP, Mishra S, Chaturvedi CP, Courty J, Singh N, Gupta S, Kumar S, Verma SP, Mallick S, Gogia A, Raghav S, Sarkar J, Srivastava KR, Datta D, and Jain N
- Subjects
- Humans, Gene Expression Regulation, Neoplastic, RNA-Binding Proteins metabolism, RNA-Binding Proteins genetics, Neoplastic Stem Cells pathology, Neoplastic Stem Cells metabolism, Nucleolin, Cell Line, Tumor, Phosphoproteins metabolism, Phosphoproteins genetics, Phosphoproteins antagonists & inhibitors, Mice, Signal Transduction, Tumor Cells, Cultured, Lymphoma, Mantle-Cell pathology, Lymphoma, Mantle-Cell genetics, Lymphoma, Mantle-Cell metabolism, Receptor, Fibroblast Growth Factor, Type 1 metabolism, Receptor, Fibroblast Growth Factor, Type 1 genetics, Receptor, Fibroblast Growth Factor, Type 1 antagonists & inhibitors, Cell Proliferation, Tumor Microenvironment, Stromal Cells metabolism, Stromal Cells pathology, RNA, Long Noncoding genetics
- Abstract
The interaction between stromal and tumor cells in tumor microenvironment is a crucial factor in Mantle cell lymphoma (MCL) progression and therapy resistance. We have identified a long non-coding RNA, CERS6-AS1, upregulated in MCL and associated with poor overall survival. CERS6-AS1 expression was elevated in primary MCL within stromal microenvironment and in a subset of MCL cells adhered to stromal layer. These stromal-adhered MCL-subsets exhibited cancer stem cell signatures than suspension counterparts. Mechanistically, we found that downregulating CERS6-AS1 in MCL reduced Fibroblast Growth Factor Receptor-1 (FGFR1), expression attributed to loss of its interaction with RNA-binding protein nucleolin. In addition, using in-silico approach, we have discovered a direct interaction between nucleolin and 5'UTR of FGFR1, thereby regulating FGFR1 transcript stability. We discovered a positive association of CERS6-AS1 with cancer stem cell signatures, and Wnt signaling. Building on these, we explored potential therapeutic strategies where combining nucleolin-targeting agent with FGFR1 inhibition significantly contributed to reversing cancer stem cell signatures and abrogated primary MCL cell growth on stromal layer. These findings provide mechanistic insights into regulatory network involving CERS6-AS1, nucleolin, and FGFR1 axis-associated crosstalk between tumor cells and stromal cell interaction and highlights therapeutic potential of targeting a non-coding RNA in MCL., (© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)
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- 2024
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8. A rare case of primary myelofibrosis with novel cytogenetic abnormality - deletion 4q25.
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Chattopadhyay D, Hajra S, Chandra H, and Nath UK
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- 2024
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9. Therapeutic strategies and treatment sequencing in patients with chronic lymphocytic leukemia: An international study of ERIC, the European Research Initiative on CLL.
- Author
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Chatzikonstantinou T, Scarfò L, Minga E, Karakatsoulis G, Chamou D, Kotaskova J, Iacoboni G, Demosthenous C, Albi E, Alcoceba M, Al-Shemari S, Aurran-Schleinitz T, Bacchiarri F, Chatzileontiadou S, Collado R, Davis Z, de Deus Santos MD, Dimou M, Dmitrieva E, Donaldson D, Dos Santos G, Dreta B, Efstathopoulou M, El-Ashwah S, Enrico A, Frygier A, Galimberti S, Galitzia A, Gimeno E, Guarente V, Guieze R, Harrop S, Hatzimichael E, Herishanu Y, Hernández-Rivas JÁ, Jaksic O, Kalicińska E, Laribi K, Karakus V, Kater AP, Kho B, Kislova M, Konstantinou Ε, Koren-Michowitz M, Kotsianidis I, Kubova Z, Labrador J, Lad D, Laurenti L, Longval T, Lopez-Garcia A, Marquet J, Maslejova S, Mayor-Bastida C, Mihaljevic B, Milosevic I, Miras F, Moia R, Morawska M, Nath UK, Navarro-Bailón A, Olivieri J, Panovska-Stavridis I, Papaioannou M, Pierie C, Puiggros A, Reda G, Rigolin GM, Ruchlemer R, Schipani M, Schiwitza A, Shen Y, Shokralla T, Simkovic M, Smirnova S, Soliman DSA, Stilgenbauer S, Tadmor T, Tomic K, Tse E, Vassilakopoulos T, Visentin A, Vitale C, Vrachiolias G, Vukovic V, Walewska R, Xu Z, Yagci M, Yañez L, Yassin M, Zuchnicka J, Oscier D, Gozzetti A, Panagiotidis P, Bosch F, Sportoletti P, Espinet B, Pangalis GA, Popov VM, Mulligan S, Angelopoulou M, Demirkan F, Papajík T, Biderman B, Murru R, Coscia M, Tam C, Cuneo A, Gaidano G, Claus R, Stavroyianni N, Trentin L, Antic D, Smolej L, Kalashnikova OB, Catherwood M, Spacek M, Pospisilova S, Doubek M, Nikitin E, Chatzidimitriou A, Ghia P, and Stamatopoulos K
- Abstract
Competing Interests: Thomas Chatzikonstantinou received honoraria from AbbVie. Lydia Scarfò received honoraria from AbbVie, AstraZeneca, BeiGene, Lilly, Janssen, Octapharma. Gloria Iacoboni received honoraria and travel support from Novartis, Kite/Gilead, Bristol‐Myers Squibb, Abbvie, Autolus, Miltenyi, and AstraZeneca. Rosa Collado received support for attending meetings from Janssen‐Cilag and S.A. Sara Galimberti received honoraria support for attending meetings from AbbVie, AstraZeneca, Jazz, Novartis, and Incyte, honoraria from Roche, Celgene, Pfizer, and Janssen, and support for attending meetings from Jazz, AstraZeneca, and Roche. Romain Guieze received honoraria, consulting fees, and support for attending meetings from AbbVie, Beigene, Roche, Janssen, and AstraZeneca. Eleftheria Hatzimichael received honoraria from AbbVie, Janssen‐Cilag, AstraZeneca, and Roche. Yair Herishanu received honoraria from Janssen, AbbVie, Roche, AstraZeneca, Medion, and Lilly. José‐Ángel Hernández‐Rivas received honoraria as a consultant from Janssen, AbbVie, AstraZeneca, Lilly, and BeiGene and support for attending meetings from Janssen, AbbVie, AstraZeneca, and BeiGene. Ozren Jaksic received honoraria from Johnson and Johnson, AstraZeneca, and Lilly, honoraria from Johnson and Johnson, AbbVie, AstraZeneca, and Lilly, and support for attending meetings from Johnson and Johnson, and AbbVie. Kamel Laribi received consulting fees from AbbVie, AstraZeneca, Janssen, Beigene, Takeda, and Novartis. Maya Koren‐Michowitz received honoraria from Novartis, Pfizer, and Gad Medical LTD. and support for attending meetings from Novartis. Arnon P. Kater received advisory board fees and research money from Janssen, AbbVie, BMS, AstraZeneca, and Roche/Genentech, and support for attending meetings from Janssen and AbbVie. Ioannis Kotsianidis received honoraria and consulting fees from AbbVie and Janssen. Ivana Milosevic received honoraria from AbbVie, Roche, Sandoz, AstraZeneca, and Janssen, and support for attending meetings from AbbVie, Roche, and Takeda. Almudena Navarro‐Bailón received honoraria, advisory board fees, and support for attending meetings from AbbVie, AstraZeneca, Takeda, Janssen, and Beigene. Jacopo Olivieri received honoraria from AbbVie, AstraZeneca, and Janssen. Gianluigi Reda received consulting fees from AbbVie, AstraZeneca, Janssen, and Beigene, and is currently employed by AstraZeneca. Gian M. Rigolin received honoraria for participation in speaker's bureau from AbbVie, Astra Zeneca, Beigene, and Janssen, and support for attending meetings from Janssen. Mattia Schipani received honoraria and support for attending meetings from AstraZeneca, AbbVie, and Janssen‐Cilag and owns shares of stock in AbbVie, AstraZeneca, Merck, Eli Lilly, Sanofi, Johnson and Johnson, Pfizer, Gilead, and GSK. Tereza Shokralla and Stephan Stilgenbauer reports research funding from, consultancy or advisory role for, honoraria from, speakers' bureau participation for, and travel support from AbbVie, Amgen, AstraZeneca, BeiGene, Bristol Myers Squibb, Celgene, Gilead, GlaxoSmithKline, Hoffmann‐La Roche, Incyte, Infinity, Janssen, Novartis, and Sunesis. Eric Tse received support for attending meetings from Takeda. Theodoros Vassilakopoulos received honoraria from Takeda, Roche, Genesis Pharma, Merck, Novartis, Gilead, Sandoz, AstraZeneca, Integris, and Servier, and support for attending meetings from Takeda, Roche, Genesis Pharma, Merck, Pfizer, and Winmedica. Candida Vitale received honoraria from AbbVie, consulting fees from AstraZeneca, and support for attending meetings from AstraZeneca, Takeda, and Janssen. Renata Walewska received honoraria from AbbVie, AstraZeneca, and Beigene, support for attending meetings from Janssen, AbbVie, and AstraZeneca, and advisory board fees from AbbVie, AstraZeneca, Janssen, Beigene, and SecuraBio. Lucrecia Yañez received honoraria from AbbVie, AstraZeneca, Novartis, Gilead, Janssen, Jazz, MSD, and Pfizer, support for attending meetings from AbbVie, AstraZeneca, Gilead, Janssen, and Pfizer, and advisory board fees from AbbVie, AstraZeneca, Jazz, Janssen, Beigene, and Celgene. Francesc Bosch received consulting fees, honoraria, and payment for expert testimony from AbbVie, Genentech, Novartis, Takeda, Janssen, Roche, Mundipharma, Celgene/BMS, AstraZeneca, Lilly, Beigene, Gilead and TG Therapeutics, Advantage Allogene, Lava Therapeutics, and Enterome. Stephen Mulligan received advisory board fees from AbbVie, AstraZeneca, Janssen, Roche, and BeiGene. Maria Angelopoulou received consulting fees from AbbVie, Takeda, Janssen, Roche, Genesis, Gilead, and Amgen and honoraria from AbbVie, Takeda, Roche, Genesis, Gilead, and Novartis. Fatih Demirkan received support for attending meetings from Janssen and AbbVie. Tomas Papajík received honoraria and advisory board fees from AbbVie, Janssen‐Cilag, and AstraZeneca, and support for attending meetings from AstraZeneca. Marta Coscia received honoraria, advisory board fees, and support for attending meetings from AbbVie, AstraZeneca, and Janssen. Constantine Tam received honoraria from AbbVie, Beigene, Janssen, and LOXO. Antonio Cuneo received honoraria, advisory board fees, and support for attending meetings from AbbVie, AstraZeneca, Beigene, Janssen, and Lilly. Gianluca Gaidano received honoraria from Abbvie, AstraZeneca, BeiGene, Hikma, Incyte, Janssen, and Lilly. Niki Stavroyianni received honoraria from Janssen, AbbVie, AstraZeneca, and Lilly, and support for attending meetings from Janssen and AstraZeneca. Lukas Smolej received consulting fees, honoraria, and support for attending meetings from AbbVie, AstraZeneca, and Janssen and advisory board fees from AbbVie and AstraZeneca. Martin Spacek received honoraria and consulting and advisory board fees, and support for attending meetings from AbbVie, AstraZeneca, and Janssen. Michael Doubek received research support and honoraria from AbbVie, AstraZeneca, and Janssen. Eugene Nikitin received honoraria from AbbVie. Kostas Stamatopoulos received research support from AbbVie, AstraZeneca, Janssen, Novartis, and Roche; honoraria from AbbVie, AstraZeneca, Bristol Myers Squibb, Lilly, and Janssen. Paolo Ghia received research support from AbbVie, AstraZeneca, BMS, Janssen and honoraria from AbbVie, AstraZeneca, BeiGene, BMS, Galapagos, Genmab, Janssen, Loxo Oncology @Lilly, MSD, Roche, and is an Editor of HemaSphere. Georgios Karakatsoulis, Eva Minga, Dimitra Chamou, Jana Kotaskova, Christos Demosthenous, Elisa Albi, Miguel Alcoceba, Salem Al‐Shemari, Thérèse Aurran‐Schleinitz, Francesca Bacchiarri, Sofia Chatzileontiadou, Zadie Davis, Marcos Daniel de Deus Santos, Maria Dimou, Elena Dmitrieva, David Donaldson, Gimena Dos Santos, Barbara Dreta, Maria Efstathopoulou, Shaimaa El‐Ashwah, Alicia Enrico, Andrzej Frygier, Andrea Galitzia, Eva Gimeno, Valerio Guarente, Sean Harrop, Elżbieta Kalicińska, Volkan Karakus, Bonnie Kho, Maria Kislova, Εliana Konstantinou, Zuzana Kubova, Jorge Labrador, Deepesh Lad, Luca Laurenti, Thomas Longval, Alberto Lopez‐Garcia, Juan Marquet, Stanislava Maslejova, Carlota Mayor‐Bastida, Biljana Mihaljevic, Fatima Miras, Riccardo Moia, Marta Morawska, Uttam K. Nath, Irina Panovska‐Stavridis, Maria Papaioannou, Cheyenne Pierie, Anna Puiggros, Rosa Ruchlemer, Annett Schiwitza, Yandong Shen, Tereza Shokralla, Martin Simkovic, Svetlana Smirnova, Dina S. A. Soliman, Tamar Tadmor, Kristina Tomic, Andrea Visentin, George Vrachiolias, Vojin Vukovic, Zhenshu Xu, Munci Yagci, Mohamed Yassin, Jana Zuchnicka, David Oscier, Alessandro Gozzetti, Panagiotis Panagiotidis, Blanca Espinet, Paolo Sportoletti, Gerassimos A. Pangalis, Viola M. Popov, Bella Biderman, Roberta Murru, Rainer Claus, Livio Trentin, Darko Antic, Olga B. Kalashnikova, Mark Catherwood, Sarka Pospisilova, and Anastasia Chatzidimitriou have no conflict of interest to disclose.
- Published
- 2024
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10. Correction: Targeting CERS6-AS1/FGFR1 axis as synthetic vulnerability to constrain stromal cells supported proliferation in Mantle cell lymphoma.
- Author
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Jindal U, Mamgain M, Nath UK, Sharma I, Pant B, Sharma A, Gupta A, Rahman K, Yadav S, Singh MP, Mishra S, Chaturvedi CP, Courty J, Singh N, Gupta S, Kumar S, Verma SP, Mallick S, Gogia A, Raghav S, Sarkar J, Srivastava KR, Datta D, and Jain N
- Published
- 2024
- Full Text
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11. A Validated Chiral Chromatography Method for Enantiomeric Separation of Pomalidomide in Human Plasma.
- Author
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Vardhan G, Kumar V, Sahu PL, Prakash A, Prasad R, Handu S, Nath UK, and Dhamija P
- Subjects
- Humans, Stereoisomerism, Chromatography, High Pressure Liquid methods, Reproducibility of Results, Linear Models, Thalidomide blood, Thalidomide analogs & derivatives, Thalidomide chemistry, Limit of Detection
- Abstract
In the present work, new chiral stationary phase high-performance liquid chromatography (CSP-HPLC) method was established and validated for the quantification of pomalidomide (PMD) enantiomers in human plasma. The chromatographic enantiomeric separation was achieved on a Daicel-CSP, Chiralpack IA 4.6 × 250 mm, 5 μm; because of its advantages of high degree of retention, high resolution capacity, better reproducibility, ability to produce lower back pressure and low degree of tailing. The mobile phase was maintained as methanol: glacial acetic acid (499.50 ml:50 μL). Ultraviolet wavelength for detection was 220 nm. PMD enantiomer-I and enantiomer-II were separated at 8.83 and 15.34 min, respectively. Limit of detection and limit of quantification for each enantiomer and the calibration curve of standard PMD was linear in range between 10-5,000 ng mL-1. The method was validated according to The International Council for Harmonisation of Technical Requirements of Pharmaceuticals for Human Use (ICH(Q2R1)) specific guidelines. We found no interference peak with PMD chromatogram obtained. This is a simple, reliable and specific method for detection and quantification of enantiomer of PMD in human plasma sample., (© The Author(s) 2024. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
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- 2024
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12. Acquired alpha-thalassemia in association with myelodysplastic syndrome.
- Author
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Jha N, Hajra S, Kumar K, Nath UK, and Balasubramanian P
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- 2024
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13. A Rare Case of Familial Methemoglobinemia with Congenital Heart Disease.
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Nayak J, Kumar K, Singh SK, Dhingra G, and Nath UK
- Abstract
Methemoglobinemia is a rare dyshemoglobin disorder which can either be congenital or acquired. Dyshemoglobin disorders can be asymptomatic or symptomatic. We narrate the case of a 12-year-old girl who presented with a fever, cough, and oxygen saturation of 85%. She was diagnosed with COVID-19, along with a large atrial septal defect and pulmonary arterial hypertension. Arterial blood gas analysis revealed normal partial pressure of oxygen and on 100% exposure to oxygen, blood color turned chocolate brown. After the resolution of COVID-19 in 10 days, the patient was treated with oral ascorbic acid and successful atrial septal defect repair. It is important to suspect dyshemoglobin disorder in a patient who presents with hypoxia/hypoxemia., (Copyright © 2024, Oman Medical Journal.)
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- 2024
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14. Fine mapping and candidate gene analysis of CRA8.1.6 , which confers clubroot resistance in turnip ( Brassica rapa ssp. rapa ).
- Author
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Wei X, Xiao S, Zhao Y, Zhang L, Nath UK, Yang S, Su H, Zhang W, Wang Z, Tian B, Wei F, Yuan Y, and Zhang X
- Abstract
Clubroot disease poses a significant threat to Brassica crops, necessitating ongoing updates on resistance gene sources. In F
2 segregants of the clubroot-resistant inbred line BrT18-6-4-3 and susceptible DH line Y510, the genetic analysis identified a single dominant gene responsible for clubroot resistance. Through bulk segregant sequencing analysis and kompetitive allele-specific polymerase chain reaction assays, CRA8.1.6 was mapped within 110 kb (12,255-12,365 Mb) between markers L-CR11 and L-CR12 on chromosome A08. We identified B raA08g015220.3.5C as the candidate gene of CRA8.1.6 . Upon comparison with the sequence of disease-resistant material BrT18-6-4-3, we found 249 single-nucleotide polymorphisms, seven insertions, six deletions, and a long terminal repeat (LTR) retrotransposon (5,310 bp) at 909 bp of the first intron. However, the LTR retrotransposon was absent in the coding sequence of the susceptible DH line Y510. Given the presence of a non-functional LTR insertion in other materials, it showed that the LTR insertion might not be associated with susceptibility. Sequence alignment analysis revealed that the fourth exon of the susceptible line harbored two deletions and an insertion, resulting in a frameshift mutation at 8,551 bp, leading to translation termination at the leucine-rich repeat domain's C-terminal in susceptible material. Sequence alignment of the CDS revealed a 99.4% similarity to Crr1a , which indicate that CRA8.1.6 is likely an allele of the Crr1a gene. Two functional markers, CRA08-InDel and CRA08-KASP1, have been developed for marker-assisted selection in CR turnip cultivars. Our findings could facilitate the development of clubroot-resistance turnip cultivars through marker-assisted selection., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Wei, Xiao, Zhao, Zhang, Nath, Yang, Su, Zhang, Wang, Tian, Wei, Yuan and Zhang.)- Published
- 2024
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15. Prevalence, Attributes, and Risk Factors of QT-Interval-Prolonging Drugs and Potential Drug-Drug Interactions in Cancer Patients: A Prospective Study in a Tertiary Care Hospital.
- Author
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Agnihotri A, Ramasubbu SK, Bandyopadhyay A, Bidarolli M, Nath UK, and Das B
- Abstract
Introduction Cancer chemotherapy regimens include multiple classes of adjuvant drugs as supportive therapy. Because of the concurrent intake of other drugs (like antiemetics, antidepressants, analgesics, and antimicrobials), there is a heightened risk for possible QT interval prolongation. There is a dearth of evidence in the literature regarding the usage of QT-prolonging anticancer drugs and associated risk factors that have the propensity to prolong QT interval. The purpose was to explore the extent of the use of QT-interval-prolonging drugs and potential QT-prolonging drug-drug interactions (QT-DDIs) in cancer patients attending OPD in a tertiary-care hospital. Methods This was a hospital-based, cross-sectional, observational study. Risk stratification of QT-prolonging drugs for torsades de pointes (TdP) was done by the Arizona Center for Education and Research on Therapeutics (AzCERT)/CredibleMeds-lists, and potential QT-DDIs were determined with four online DDI-checker-software. Results In 1331 cancer patients, the overall prevalence of potential QT-prolonging drug utilization was 97.3%. Ondansetron, pantoprazole, domperidone, and olanzapine were the most frequent QT-prolonging drugs in cancer patients. The top six antineoplastics with potential QT-prolonging and torsadogenic actions were capecitabine, oxaliplatin, imatinib, bortezomib, 5-fluorouracil, and bendamustine. Evidence-based pragmatic QTc interval prolongation risk assessment tools are imperative for cancer patients. Conclusion This study revealed a high prevalence of QT-prolonging drugs and QT-DDIs among cancer patients who are treated with anticancer and non-anticancer drugs. As a result, it's critical to take precautions, stay vigilant, and avoid QT-prolonging in clinical situations. Evidence-based pragmatic QTc interval prolongation risk assessment tools are needed for cancer patients., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Agnihotri et al.)
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- 2024
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16. Transcriptome analysis reveals the potential lncRNA-mRNA modules involved in genetic male sterility and fertility of Chinese cabbage (brassica rapa L. ssp. pekinensis).
- Author
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Wei X, Wang X, Zhao Y, Chen W, Nath UK, Yang S, Su H, Wang Z, Zhang W, Tian B, Wei F, Yuan Y, and Zhang X
- Subjects
- Male, Humans, RNA, Messenger genetics, RNA, Messenger metabolism, Gene Expression Profiling methods, Transcriptome, Fertility, Gene Expression Regulation, Plant, Plant Infertility genetics, Brassica rapa, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism, Brassica genetics, Infertility, Male
- Abstract
Background: Long non-coding RNAs (lncRNAs) play a crucial role in regulating gene expression vital for the growth and development of plants. Despite this, the role of lncRNAs in Chinese cabbage (Brassica rapa L. ssp. pekinensis) pollen development and male fertility remains poorly understood., Results: In this study, we characterized a recessive genic male sterile mutant (366-2 S), where the delayed degradation of tapetum and the failure of tetrad separation primarily led to the inability to form single microspores, resulting in male sterility. To analyze the role of lncRNAs in pollen development, we conducted a comparative lncRNA sequencing using anthers from the male sterile mutant line (366-2 S) and the wild-type male fertile line (366-2 F). We identified 385 differentially expressed lncRNAs between the 366-2 F and 366-2 S lines, with 172 of them potentially associated with target genes. To further understand the alterations in mRNA expression and explore potential lncRNA-target genes (mRNAs), we performed comparative mRNA transcriptome analysis in the anthers of 366-2 S and 366-2 F at two stages. We identified 1,176 differentially expressed mRNAs. Remarkably, GO analysis revealed significant enrichment in five GO terms, most notably involving mRNAs annotated as pectinesterase and polygalacturonase, which play roles in cell wall degradation. The considerable downregulation of these genes might contribute to the delayed degradation of tapetum in 366-2 S. Furthermore, we identified 15 lncRNA-mRNA modules through Venn diagram analysis. Among them, MSTRG.9997-BraA04g004630.3 C (β-1,3-glucanase) is associated with callose degradation and tetrad separation. Additionally, MSTRG.5212-BraA02g040020.3 C (pectinesterase) and MSTRG.13,532-BraA05g030320.3 C (pectinesterase) are associated with cell wall degradation of the tapetum, indicating that these three candidate lncRNA-mRNA modules potentially regulate pollen development., Conclusion: This study lays the foundation for understanding the roles of lncRNAs in pollen development and for elucidating their molecular mechanisms in regulating male sterility in Chinese cabbage., (© 2024. The Author(s).)
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- 2024
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17. Rusfertide, a Hepcidin Mimetic, for Control of Erythrocytosis in Polycythemia Vera.
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Kremyanskaya M, Kuykendall AT, Pemmaraju N, Ritchie EK, Gotlib J, Gerds A, Palmer J, Pettit K, Nath UK, Yacoub A, Molina A, Saks SR, Modi NB, Valone FH, Khanna S, Gupta S, Verstovsek S, Ginzburg YZ, and Hoffman R
- Subjects
- Humans, Hepcidins therapeutic use, Hematocrit, Iron, Polycythemia Vera drug therapy, Polycythemia Vera complications, Polycythemia Vera diagnosis, Polycythemia etiology, Polycythemia complications
- Abstract
Background: Polycythemia vera is a chronic myeloproliferative neoplasm characterized by erythrocytosis. Rusfertide, an injectable peptide mimetic of the master iron regulatory hormone hepcidin, restricts the availability of iron for erythropoiesis. The safety and efficacy of rusfertide in patients with phlebotomy-dependent polycythemia vera are unknown., Methods: In part 1 of the international, phase 2 REVIVE trial, we enrolled patients in a 28-week dose-finding assessment of rusfertide. Part 2 was a double-blind, randomized withdrawal period in which we assigned patients, in a 1:1 ratio, to receive rusfertide or placebo for 12 weeks. The primary efficacy end point was a response, defined by hematocrit control, absence of phlebotomy, and completion of the trial regimen during part 2. Patient-reported outcomes were assessed by means of the modified Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) patient diary (scores range from 0 to 10, with higher scores indicating greater severity of symptoms)., Results: Seventy patients were enrolled in part 1 of the trial, and 59 were assigned to receive rusfertide (30 patients) or placebo (29 patients) in part 2. The estimated mean (±SD) number of phlebotomies per year was 8.7±2.9 during the 28 weeks before the first dose of rusfertide and 0.6±1.0 during part 1 (estimated difference, 8.1 phlebotomies per year). The mean maximum hematocrit was 44.5±2.2% during part 1 as compared with 50.0±5.8% during the 28 weeks before the first dose of rusfertide. During part 2, a response was observed in 60% of the patients who received rusfertide as compared with 17% of those who received placebo (P = 0.002). Between baseline and the end of part 1, rusfertide treatment was associated with a decrease in individual symptom scores on the MPN-SAF in patients with moderate or severe symptoms at baseline. During parts 1 and 2, grade 3 adverse events occurred in 13% of the patients, and none of the patients had a grade 4 or 5 event. Injection-site reactions of grade 1 or 2 in severity were common., Conclusions: In patients with polycythemia vera, rusfertide treatment was associated with a mean hematocrit of less than 45% during the 28-week dose-finding period, and the percentage of patients with a response during the 12-week randomized withdrawal period was greater with rusfertide than with placebo. (Funded by Protagonist Therapeutics; REVIVE ClinicalTrials.gov number, NCT04057040.)., (Copyright © 2024 Massachusetts Medical Society.)
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- 2024
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18. Unraveling the genetic enigma of rice submergence tolerance: Shedding light on the role of ethylene response factor-encoding gene SUB1A-1.
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Khalil MI, Hassan MM, Samanta SC, Chowdhury AK, Hassan MZ, Ahmed NU, Somaddar U, Ghosal S, Robin AHK, Nath UK, Mostofa MG, Burritt DJ, Ha CV, Gupta A, Tran LP, and Saha G
- Subjects
- Ethylenes pharmacology, Genes, Plant, Plant Leaves physiology, Adaptation, Physiological genetics, Oryza physiology
- Abstract
The world's low-lying rice (Oryza sativa) cultivation areas are under threat of submergence or flash flooding due to global warming. Rice plants manifest a variety of physiological and morphological changes to cope with submergence and hypoxia, including lowering carbohydrate consumption, inhibiting shoot elongation, and forming a thicker leaf gas film during submergence. Functional studies have revealed that submergence tolerance in rice is mainly determined by an ethylene response factor (ERF) transcription factor-encoding gene, namely SUBMERGENCE 1A-1 (SUB1A-1) located in the SUB1 quantitative trait locus. The SUB1A-1-dependent submergence tolerance is manifested through hormonal signaling involving ethylene, gibberellic acid, brassinosteroid, auxin and jasmonic acid. Considerable progress has been made toward the introduction of SUB1A-1 into rice varieties through a conventional marker-assisted backcrossing approach. Here, we review the recent advances in the physiological, biochemical and molecular dynamics of rice submergence tolerance mediated by the 'quiescence strategy'. Thus, the present review aims to provide researchers with insights into the genetics of rice submergence tolerance and future perspectives for designing submergence-resilient plants for sustainable agriculture under the uncertainties of climate change., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Gopal Saha reports financial support was provided by Bangladesh Bureau of Educational Information and Statistics., (Copyright © 2023 Elsevier Masson SAS. All rights reserved.)
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- 2024
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19. Other malignancies in the history of CLL: an international multicenter study conducted by ERIC, the European Research Initiative on CLL, in HARMONY.
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Chatzikonstantinou T, Scarfò L, Karakatsoulis G, Minga E, Chamou D, Iacoboni G, Kotaskova J, Demosthenous C, Smolej L, Mulligan S, Alcoceba M, Al-Shemari S, Aurran-Schleinitz T, Bacchiarri F, Bellido M, Bijou F, Calleja A, Medina A, Khan MA, Cassin R, Chatzileontiadou S, Collado R, Christian A, Davis Z, Dimou M, Donaldson D, Santos GD, Dreta B, Efstathopoulou M, El-Ashwah S, Enrico A, Fresa A, Galimberti S, Galitzia A, García-Serra R, Gimeno E, González-Gascón-Y-Marín I, Gozzetti A, Guarente V, Guieze R, Gogia A, Gupta R, Harrop S, Hatzimichael E, Herishanu Y, Hernández-Rivas JÁ, Inchiappa L, Jaksic O, Janssen S, Kalicińska E, Laribi K, Karakus V, Kater AP, Kho B, Kislova M, Konstantinou E, Koren-Michowitz M, Kotsianidis I, Kreitman RJ, Labrador J, Lad D, Levin MD, Levy I, Longval T, Lopez-Garcia A, Marquet J, Martin-Rodríguez L, Maynadié M, Maslejova S, Mayor-Bastida C, Mihaljevic B, Milosevic I, Miras F, Moia R, Morawska M, Murru R, Nath UK, Navarro-Bailón A, Oliveira AC, Olivieri J, Oscier D, Panovska-Stavridis I, Papaioannou M, Papajík T, Kubova Z, Phumphukhieo P, Pierie C, Puiggros A, Rani L, Reda G, Rigolin GM, Ruchlemer R, Daniel de Deus Santos M, Schipani M, Schiwitza A, Shen Y, Simkovic M, Smirnova S, Abdelrahman Soliman DS, Spacek M, Tadmor T, Tomic K, Tse E, Vassilakopoulos T, Visentin A, Vitale C, von Tresckow J, Vrachiolias G, Vukovic V, Walewska R, Wasik-Szczepanek E, Xu Z, Yagci M, Yañez L, Yassin M, Zuchnicka J, Angelopoulou M, Antic D, Biderman B, Catherwood M, Claus R, Coscia M, Cuneo A, Demirkan F, Espinet B, Gaidano G, Kalashnikova OB, Laurenti L, Nikitin E, Pangalis GA, Panagiotidis P, Popov VM, Pospisilova S, Sportoletti P, Stavroyianni N, Tam C, Trentin L, Chatzidimitriou A, Bosch F, Doubek M, Ghia P, and Stamatopoulos K
- Abstract
Background: Patients with chronic lymphocytic leukemia (CLL) have a higher risk of developing other malignancies (OMs) compared to the general population. However, the impact of CLL-related risk factors and CLL-directed treatment is still unclear and represents the focus of this work., Methods: We conducted a retrospective international multicenter study to assess the incidence of OMs and detect potential risk factors in 19,705 patients with CLL, small lymphocytic lymphoma, or high-count CLL-like monoclonal B-cell lymphocytosis, diagnosed between 2000 and 2016. Data collection took place between October 2020 and March 2022., Findings: In 129,254 years of follow-up after CLL diagnosis, 3513 OMs were diagnosed (27.2 OMs/1000 person-years). The most common hematological OMs were Richter transformation, myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). Non-melanoma skin (NMSC) and prostate cancers were the most common solid tumors (STs).The only predictor for MDS and AML development was treatment with fludarabine and cyclophosphamide with/without rituximab (FC ± R) (OR = 3.7; 95% CI = 2.79-4.91; p < 0.001). STs were more frequent in males and patients with unmutated immunoglobulin heavy variable genes (OR = 1.77; 95% CI = 1.49-2.11; p < 0.001/OR = 1.89; 95% CI = 1.6-2.24; p < 0.001).CLL-directed treatment was associated with non-melanoma skin and prostate cancers (OR = 1.8; 95% CI = 1.36-2.41; p < 0.001/OR = 2.11; 95% CI = 1.12-3.97; p = 0.021). In contrast, breast cancers were more frequent in untreated patients (OR = 0.17; 95% CI = 0.08-0.33; p < 0.001).Patients with CLL and an OM had inferior overall survival (OS) than those without. AML and MDS conferred the worst OS (p < 0.001)., Interpretation: OMs in CLL impact on OS. Treatment for CLL increased the risk for AML/MDS, prostate cancer, and NMSC. FCR was associated with increased risk for AML/MDS., Funding: AbbVie, and EU/EFPIAInnovative Medicines Initiative Joint Undertaking HARMONY grant n° 116026., Competing Interests: TC received honoraria from AbbVie. LS received consulting fees from AbbVie, BeiGene, AstraZeneca, Lilly, and Janssen, honoraria from Janssen and Octapharma, support for attending meetings from BeiGene and Janssen and advisory board fees from Merck. SMu received advisory board fees from AbbVie, AstraZeneca, Janssen, Roche and BeiGene. JAHR received honoraria as a consultant from Janssen, AbbVie, AstraZeneca, Lilly, and BeiGene and support for attending meetings from Janssen, AbbVie, AstraZeneca, and BeiGene. LI received honoraria from AbbVie, Roche, and Janssen-Cilag. APK received advisory board fees and research money from Janssen, AbbVie, BMS, AstraZeneca, Roche/Genentech, support for attending meetings from Janssen and AbbVie. M-DL received travel expenses from Janssen and AbbVie. GMR received honoraria for participation to speaker's bureau from AbbVie, Astra Zeneca, Beigene, and Janssen, and support for attending meetings from Janssen. JVT received consulting fees from AbbVie, AstraZeneca, BeiGene, and Janssen, honoraria for scientific talks from AbbVie, AstraZeneca, BeiGene, Janssen, Lilly, and Roche, travel support from AbbVie, AstraZeneca, BeiGene, Janssen, Roche, and Lilly, and advisory boards fees for AbbVie, Amgen, AstraZeneca, BeiGene. GI received honoraria from Novartis, BMS, Sandoz, AstraZeneca, Janssen, Kite/Gilead, and Miltenyi, support for attending meetings from Kite/Gilead, AstraZeneca, and AbbVie and advisory board fees from Kite/Gilead, Novartis, BMS, and Autolus. FBi received support for attending meetings from AbbVie. RCo received support for attending meetings from Janssen-Cilag and S.A. SG received honoraria support for attending meetings from AbbVie, AstraZeneca, Jazz, Novartis, and Incyte, honoraria from Roche, Celgene, Pfizer, and Janssen, and support for attending meetings from Jazz, AstraZeneca, and Roche. RGS received support for attending meetings from AbbVie and S.L.U. RG received honoraria, consulting fees, and support for attending meetings from AbbVie, Beigene, Roche, Janssen, AstraZeneca. YH received honoraria from Janssen, AbbVie, Roche, AstraZeneca, Medion, and Lilly. OJ received honoraria from Johnson and Johnson, AstraZeneca, and Lilly, honoraria from Johnson and Johnson, AbbVie, AstraZeneca, and Lilly, and support for attending meetings from Johnson and Johnson, and AbbVie. LK received consulting fees from AbbVie, AstraZeneca, Janssen, Beigene, Takeda, and Novartis. MKM received honoraria from Novartis, Pfizer, and Gad Medical LTD and support for attending meetings from Novartis. IKo received honoraria and consulting fees from AbbVie and Janssen. IM received honoraria from AbbVie, Roche, Sandoz, AstraZeneca, and Janssen, and support for attending meetings from AbbVie, Roche, and Takeda. ANB received honoraria, advisory board fees and support for attending meetings from AbbVie, AstraZeneca, Takeda, Janssen, and Beigene. JO received honoraria from AbbVie, AstraZeneca, and Janssen. GR received consulting fees from AbbVie, AstraZeneca, Janssen, and Beigene, and is currently employed by AstraZeneca. TP received honoraria and advisory board fees from AbbVie, Janssen-Cilag, and AstraZeneca and support for attending meeting from AstraZeneca. MS received honoraria and support for attending meeting from AstraZeneca, AbbVie, and Janssen-Cilag and owns shares of stock in AbbVie, AstraZeneca, Merck, Eli Lilly, Sanofi, Johnson and Johnson, Pfizer, Gilead, and GSK. MSp received honoraria and consulting and advisory board fees, and support for attending meeting from AbbVie, AstraZeneca, and Janssen. ET received support for attending meetings from Takeda. TV received honoraria from Takeda, Roche, Genesis Pharma, Merck, Novartis, Gilead, Sandoz, AstraZeneca, Integris, and Servier and support for attending meetings from Takeda, Roche, Genesis Pharma, Merck, Pfizer, and Winmedica. CV received honoraria from AbbVie, consulting fees from AstraZeneca and support for attending meeting from AstraZeneca, Takeda, and Janssen. RW received honoraria from AbbVie, AstraZeneca, and Beigene, support for attending meetings from Janssen, AbbVie, and AstraZeneca and advisory board fees from AbbVie, AstraZeneca, Janssen, Beigene, and SecuraBio. EWS received honoraria from AbbVie, Roche, and Janssen-Cilag and support for attending meetings from AbbVie. LY received honoraria from AbbVie, AstraZeneca, Novartis, Gilead, Janssen, Jazz, MSD, and Pfizer, support for attending meetings from AbbVie, AstraZeneca, Gilead, Janssen, and Pfizer, and advisory board fees from AbbVie, AstraZeneca, Jazz, Janssen, Beigene, and Celgene. MAn received consulting fees from AbbVie, Takeda, Janssen, Roche, Genesis, Gilead, and Amgen and honoraria from AbbVie, Takeda, Roche, Genesis, Gilead, and Novartis. MC received honoraria, advisory board fees, and support for attending meetings from AbbVie, AstraZeneca, and Janssen. ACu received honoraria, advisory board fees, and support for attending meetings from AbbVie, AstraZeneca, Beigene, Janssen, and Lilly. FD support for attending meetings from Janssen and AbbVie. GG received honoraria, and advisory board fees from AbbVie, AstraZeneca, Beigene, Janssen and advisory board fees from Lilly. EN received honoraria from AbbVie. LSm received consulting fees, honoraria and support for attending meetings from AbbVie, AstraZeneca, and Janssen and advisory board fees from AbbVie and AstraZeneca. NS received honoraria from Janssen, AbbVie, AstraZeneca, and Lilly, and support for attending meetings from Janssen and AstraZeneca. CT received honoraria from AbbVie, Beigene, Janssen, and LOXO. FB received consulting fees, honoraria and payment for expert testimony from AbbVie, Genentech, Novartis, Takeda, Janssen, Roche, Mundipharma, Celgene/BMS, AstraZeneca, Lilly, Beigene, Gilead and TG Therapeutics, Advantage Allogene, Lava Therapeutics, and Enterome. MDo received honoraria and advisory board fees from AbbVie, AstraZeneca and Janssen, advisory board fees from Swixx, and support for attending meetings from Janssen. PG received honoraria and consulting fees from AbbVie, AstraZeneca, BMS, Janssen, Lilly/Loxo Oncology, MSD, and Roche; grant support from AbbVie, AstraZeneca, BMS, Janssen. KS received honoraria from Janssen, AbbVie, Lilly and AstraZeneca, consulting fees and support for attending meetings from Janssen and AstraZeneca. GK, EM, DC, JK, CD, MA, SA, TAS, FBa, MB, ACa, AM, AKM, RC, SC, ACh, ZD, MDi, DD, GDS, BD, ME, SEA, AE, AF, AG, EG, IGGM, AGo, AjG, RGu, SH, EH, SJ, EKa, VK, BK, MK, EK, RJK, JL, DL, IL, TL, ALG, JM, LMR, MMa, SM, CMB, BM, FM, RM, MMo, RMu, UKN, ACO, DO, IPS, MP, ZK, PP, CP, AP, LR, RR, MDDS, AS, YS, MSi, SS, DSAS, TT, KT, AV, GV, VV, ZX, MYa, MY, JZ, DA, BB, MCa, RCl, BE, OBK, LL, GP, PPa, VMP, SP, PS, LT, AC, have no conflict of interest to disclose., (© 2023 Published by Elsevier Ltd.)
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- 2023
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20. Adipose Tissue in Peripheral Obesity as an Assessment Factor for Pressure Ulcers.
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Vathulya M, Chattopadhyay D, Kandwal P, Nath UK, Kapoor A, and Sinha M
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- Humans, Obesity complications, Adipose Tissue, Pressure Ulcer therapy
- Abstract
Scope and Significance: Pressure ulcers are very difficult to treat and pose an economic burden, just below cancer and cardiovascular illness, at 4.82 billion U.S. dollars. It is important to understand the pathophysiology of the condition, risk stratification, and ways of preventing it. Prevention forms the most important aspect of their management. The authors systematically evaluated the existing risk prediction scales and explored the evidence from literature regarding the role of additional factors including body mass index, obesity, subcutaneous tissue thickness, and skin integrity in pressure ulcers. With this review it is hoped that the future management of pressure ulcers will concentrate on the preventable and alterable factors in its pathophysiology. Translational Relevance: The review focuses on how adipose tissue thickness can predict the occurrence of pressure ulcer. If adequately proved that a definite thickness of peripheral adipose tissue is efficient in prevention of pressure ulcers, then methods of maintaining the thickness of this tissue will be the next effective strategy in the management of this chronic issue. Clinical Relevance: The review addresses the management of pressure ulcers to wound care providers and emphasize on confounding parameters of obesity, subcutaneous tissue thickness, and skin integrity during the treatment regimen of pressure ulcers. Objectives: The main objective of this review is to draw a consensus concerning the role of adipose tissue in pressure ulcers, based on the published research. A review of the various preexisting predictive scales for pressure ulcers is a secondary objective to highlight the shortcomings in ulcer management. This review finally aims in the future at paving a way to refine our prognosticating scales for pressure sores based on these results. Accurate preventative injury risk scales are needed so that preventative resources can be directed to the patients for whom they are the most appropriate.
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- 2023
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21. Safety and efficacy of Vitamin D 3 supplementation with Imatinib in Chronic Phase- Chronic Myeloid Leukaemia: an Exploratory Randomized Controlled Trial.
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Bandyopadhyay A, Palepu S, Dhamija P, Nath UK, Chetia R, Bakliwal A, Vaniyath S, Chattopadhyay D, and Handu S
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- Female, Pregnancy, Humans, Imatinib Mesylate adverse effects, Cholecalciferol therapeutic use, India, Dietary Supplements, Leukemia, Myelogenous, Chronic, BCR-ABL Positive drug therapy
- Abstract
Objectives: The study aimed to compare early molecular response (EMR) rates at 3 months of imatinib therapy with and without vitamin D
3 supplementation in patients newly diagnosed with chronic-phase chronic myeloid leukaemia (CML-CP). The secondary objective was to assess the effects of vitamin D3 on complete haematological response (CHR) and its safety., Design: Double-blind, placebo-controlled, exploratory randomised trial., Setting: Tertiary care hospital in northern India., Participants: Treatment-naive patients with chronic phase chronic myeloid leukaemia (n=62) aged >12 years were recruited from January 2020 to January 2021. Patients with progressive disease, pregnancy and hypercalcaemia were excluded., Intervention: Oral vitamin D3 supplementation (60 000 IU) or matched placebo was given once weekly for an initial 8 weeks along with imatinib after randomisation with 1:1 allocation ratio., Primary and Secondary Outcome Measures: The primary outcome was to compare EMR (defined as BCR-ABL1 transcript level ≤10%, international scale) at 3 months. The secondary outcomes were to compare effect of the intervention on CHR, correlation of 25(OH)2D3 levels with treatment response and safety according to Common Terminology Criteria for Adverse Events (CTCAE) version 5., Results: At baseline, 14.5% of the patients had normal vitamin D3 levels. EMR at 3 months was attained in 24 patients (82.7%) of the vitamin D3 group and 21 (75%) of the placebo group (OR 1.6, 95% CI 0.37 to 7.37, p=0.4). A significant difference in vitamin D3 levels from baseline to the end of study was observed. Patients with vitamin D3 supplementation did not achieve higher CHR in comparison with placebo (OR 1.3, 95% CI 0.25 to 7.23, p=1.0). Vitamin D3 levels were not significantly correlated with BCR-ABL1 levels. No dose-limiting toxicities were observed., Conclusion: Vitamin D3 levels were low among patients with CML-CP in this study. Vitamin D3 supplementation with imatinib therapy did not have significant effect on EMR or CHR. Further clinical trials could be undertaken to assess the effective dosage and duration of vitamin D3 supplementation in these patients., Trial Registration Number: CTRI/2019/09/021164., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)- Published
- 2023
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22. Mucocutaneous Findings in Hematolymphoid Neoplasms: An Observational Study.
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Batra A, Hazarika N, and Nath UK
- Abstract
Background: Cutaneous manifestations of hematological neoplasms can be divided into three broad categories - direct infiltration, paraneoplastic conditions, and those due to the treatment of hematological cancers., Objectives: To study the frequency and patterns of mucocutaneous manifestations in patients with hematolymphoid neoplasms and those due to chemotherapy., Materials and Methods: This was an observational study done with 172 patients. Categorization of mucocutaneous manifestations was done into malignancy-associated and chemotherapeutic drugs-associated and data was analyzed., Results: Out of a total of 172 patients, 15.6% (27/172) had malignancy-related mucocutaneous manifestations. Among these, 4.6% (8/172) had direct infiltration of malignant cells into the skin and 11% (19/172) had paraneoplastic manifestations. The most common chemotherapy-related mucocutaneous manifestations were nail changes - 47.1% (81/172), of which transverse melanonychia was the most common (20.9%). About 44.2% (76/172) had a cutaneous infection, the commonest of which was a fungal infection (15.1%). Chemotherapy-induced alopecia was noted in 46.5% (80/172) and found to be significantly associated with cytarabine, daunorubicin, doxorubicin, methotrexate, and vincristine. Cutaneous hyperpigmentation was found to be significantly associated with cytarabine, doxorubicin, and vincristine., Conclusion: Mucocutaneous manifestations cause additional discomfort to a patient undergoing chemotherapy. Early recognition and timely and appropriate management facilitate symptom control and prevent treatment-related morbidity. A multidisciplinary approach involving hemato-oncologists and dermatologists can help achieve this target., Competing Interests: There are no conflicts of interest., (Copyright: © 2023 Indian Dermatology Online Journal.)
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- 2023
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23. bra-miR167a Targets ARF8 and Negatively Regulates Arabidopsis thaliana Immunity against Plasmodiophora brassicae .
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Liao R, Wei X, Zhao Y, Xie Z, Nath UK, Yang S, Su H, Wang Z, Li L, Tian B, Wei F, Yuan Y, and Zhang X
- Subjects
- Indoleacetic Acids metabolism, Plant Diseases genetics, Arabidopsis genetics, Arabidopsis metabolism, Arabidopsis Proteins genetics, Arabidopsis Proteins metabolism, Plasmodiophorida physiology
- Abstract
Clubroot is a soil-borne disease caused by Plasmodiophora brassicae , which can seriously affect the growth and production of cruciferous crops, especially Chinese cabbage crops, worldwide. At present, few studies have been conducted on the molecular mechanism of this disease's resistance response. In this experiment, we analyzed the bioinformation of bra-miR167a, constructed a silencing vector (STTM167a) and an overexpression vector (OE-miR167a), and transformed them to Arabidopsis to confirm the role of miR167a in the clubroot resistance mechanism of Arabidopsis . Afterwards, phenotype analysis and expression level analysis of key genes were conducted on transgenic plants. From the result, we found that the length and number of lateral roots of silence transgenic Arabidopsis STTM167a was higher than that of WT and OE-miR167a. In addition, the STTM167a transgenic Arabidopsis induced up-regulation of disease resistance-related genes ( PR1 , PR5 , MPK3 , and MPK6 ) at 3 days after inoculation. On the other hand, the auxin pathway genes ( TIR1 , AFB2 , and AFB3 ), which are involved in maintaining the balance of auxin/IAA and auxin response factor ( ARF ), were down-regulated. These results indicate that bra-miR167a is negative to the development of lateral roots and auxins, but positive to the expression of resistance-related genes. This also means that the STTM167a can improve the resistance of clubroot by promoting lateral root development and the level of auxin, and can induce resistance-related genes by regulating its target genes. We found a positive correlation between miR167a and clubroot disease, which is a new clue for the prevention and treatment of clubroot disease.
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- 2023
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24. Leukemia-associated aberrant immunophenotype: A flow cytometry-based experience of 110 cases from a tertiary care center in Northern India.
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Venugopalan RK, Singh N, Anthony ML, Kunnumbrath A, Gupta AK, Nath UK, Chowdhury N, and Chandra H
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- Humans, Flow Cytometry methods, Tertiary Care Centers, Immunophenotyping, Leukemia, Myeloid, Acute diagnosis, Leukemia, Lymphocytic, Chronic, B-Cell, Precursor Cell Lymphoblastic Leukemia-Lymphoma diagnosis, Precursor Cell Lymphoblastic Leukemia-Lymphoma epidemiology
- Abstract
Background: Leukemic cells express a characteristic set of "cluster of differentiation" (CD) markers, which forms the basis of the current WHO classification. Leukemia-associated aberrant immunophenotype (LAIP) refers to expression of unusual CD markers by leukemic cells, which are not normally expressed by their respective lineage. The incidence of LAIP varies considerably, and its clinical implications, prognostic relevance, and sensitivity to therapy are still debatable. This study was conducted to identify the immunophenotypic aberrancies in newly diagnosed leukemias in our Institute., Method: This was an observational study, which included newly diagnosed leukemias on flow cytometry. Aberrant immunophenotypic expressions were recorded whenever present and were correlated with prognostic factors like age, gender, and total leucocyte count (TLC)., Results: The study included 110 newly diagnosed cases of leukemias (85 acute and 25 chronic) over 1.5 years. Immunophenotypic aberrancies were detected in 40.4% of the cases. The highest incidence of aberrations was detected in acute myeloid leukemia (60.7%). LAIPs were detected in 50% of T-acute lymphoblastic leukemia and 25% cases of in B-cell acute lymphoblastic leukemia (B-ALL). Aberrant CD33 and CD56 expression in B-ALL correlated with poor prognostic factors like higher age and higher TLC, respectively. Immunophenotypic aberrancies were present in 28% cases of chronic lymphocytic leukemia., Conclusion: The results of this study have generated valuable baseline data on the incidence of LAIPs in this region. This information is vital because establishing LAIPs at the time of diagnosis is crucial for disease monitoring. Some LAIPs are associated with underlying cytogenetic abnormalities and hence impact the management and prognosis.
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- 2023
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25. Development and validation of a novel chiral chromatographic method for separation of lenalidomide enantiomers in human plasma.
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Vardhan G, Kumar V, Sahu PL, Prakash A, Nath UK, Handu S, and Dhamija P
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- Humans, Lenalidomide, Stereoisomerism, Chromatography, High Pressure Liquid methods, Reproducibility of Results, Thalidomide
- Abstract
Lenalidomide (LND) is an analogue of thalidomide that is second generation immunomodulatory drugs (IMiDs). LND contains asymmetric carbon atom and exist R and S enantiomer. S (-) form of enantiomer are considered to be more potent and biologically active in tumor cell. It is available in racemic form for clinical use. The study aims to develop and validate enantiomer separation of LND in human plasma. The chromatographic enantiomeric separation was achieved on a Daicel-CSP, Chiralpack IA 4.6 × 250 mm_5 μm. The mobile phase was constituted in combination of methanol:glacial acetic acid at a concentration of 499.50 ml: 50 μl. UV wavelength detection was 220 nm. The RSD% for all validation parameters was found to be within the acceptable limit. The chiral chromatographic (chiral stationary phase-high-performance liquid chromatography [CSP-HPLC]) method developed and validated for the quantitative estimation of LND enantiomers S (-) and R (+) in human plasma sample is accurate, precise, robust, stable and selective., (© 2022 Wiley Periodicals LLC.)
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- 2023
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26. B-lymphoblastic lymphoma presenting as acute pancreatitis: a rare mimicker.
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Kumari N, Bakliwal A, Singh M, Dhingra G, Gupta A, and Nath UK
- Abstract
Competing Interests: Conflict of interest The authors declare that there is no conflict of interest regarding the publication of this paper.
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- 2023
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27. Identification and in-vitro analysis of potential proteasome inhibitors targeting PSMβ5 for multiple myeloma.
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Yadav R, Nath UK, Celik I, Handu S, Jain N, and Dhamija P
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- Humans, Proteasome Inhibitors pharmacology, Proteasome Inhibitors therapeutic use, Molecular Docking Simulation, Bortezomib pharmacology, Proteasome Endopeptidase Complex metabolism, Drug Resistance, Neoplasm, Cell Line, Tumor, Multiple Myeloma genetics, Antineoplastic Agents therapeutic use
- Abstract
The proteasome subunit β5 (PSMβ5) is a chief target of proteasome inhibitors (PIs) for treatment of multiple myeloma (MM). The relevance of PSMβ5 mutations and their functional impact on the development of resistance to PIs have been demonstrated recently. Therefore, this present study deals with an in-depth E-pharmacophore based screening and repurposing of FDA-approved drugs that could target PSMβ5 for MM. Our molecular docking-based investigation revealed risedronate and zoledronate as potential alternative therapeutic molecules for targeting the PSMβ5 gene. Risedronate and zoledronate displayed high binding affinity (-9.51 and -8.56 kcal/mol respectively) to PSMβ5. Moreover, 100 ns molecular dynamics simulation analysis of docking complexes revealed risedronate and zoledronate with a superior binding free energies and stable interactions with PSMβ5. The RMSD plot shows that the risedronate-PSMβ5 (mean: 0.24 nm) and zoledronate-PSMβ5 (mean: 0.25 nm) complexes are identical and stays stable until 100 ns. We further validated the activity of zoledronate in MM cell lines RPMI8226 and U266 where zoledronate showed significant anti-proliferative and apoptotic activity. Importantly, zoledronate showed an enhanced anti-proliferative activity when combined with bortezomib in MM cell lines. Thus, this study demonstrates that combining bortezomib with zoledronate could have a significant impact on reducing MM cell growth and can be an alternative strategy for treating MM., Competing Interests: Conflict of Interest Statement The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022. Published by Elsevier Masson SAS.)
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- 2023
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28. Hepatic Plasmacytoma With DEL13q14 Positive on Fluorescent In Situ Hybridization (FISH) on Tissue Biopsy.
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Kumar K, Singh S, Nayak J, Dhingra G, and Nath UK
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A 40-year-old male presented with abdominal distension and dyspnea. On evaluation found to have hepatic plasmacytoma without marrow clonal plasma cells. Fluorescent in situ hybridization (FISH) on tissue biopsy revealed myeloma-defining cytogenetics. After treating with novel agents, the patient had a complete response to therapy., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Kumar et al.)
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- 2022
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29. A sequential exploratory study to develop and validate neutropenic nursing care bundle for neutropenic patients admitted in a tertiary care hospital, Uttarakhand.
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Dahiya N, Rani R, and Nath UK
- Abstract
Background: Patients diagnosed with cancer and who undergo cancer treatment are at potential risk of bone marrow suppression leading to prolonged hospitalization, delay in treatment, and chemotherapy dose reductions, which ultimately results in significant morbidity and mortality. This sequential exploratory study using a mixed-method approach was aimed to develop and validate a neutropenic nursing care (NNC) bundle for neutropenic patients admitted in a tertiary care hospital, Uttarakhand., Material and Methods: This sequential exploratory study design with an instrument developmental model was used to develop the NNC bundle. It consisted of two phases: Qualitative phase and quantitative phase. In the qualitative phase, focused group discussion with eight oncology nurses was performed to derive themes related to neutropenic nursing care using conventional content analysis. An extensive literature review was also performed on these themes to explore the current pieces of evidence for item pool generation. In the quantitative phase, a preliminary draft bundle was developed, and two Delphi rounds (I and II) were carried out among the five experts for the content validation of the NNC bundle and a final bundle was developed., Results: Major domains identified for the bundle were hand hygiene, care of central and peripheral lines, routine oral care, antiseptic bath, peri-anal care, diet, and environmental hygiene. The content validity index (CVI) of the bundle was found to be >80% for all the items with I-CVI >0.8 and S-CVI = 0.99 after conducting two rounds of Delphi., Conclusion: The present study has provided a set of valid written neutropenic nursing interventions to prevent complications in neutropenic patients. The NNC bundle should be subjected to other levels of evaluation that measure the bundle's practicability and suitability for the intended field., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 Journal of Education and Health Promotion.)
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- 2022
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30. Next-Generation Sequencing Highlights of Diffuse Large B-cell Lymphoma in a Tertiary Care Hospital in North India.
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Mamgain G, Naithani M, Patra P, Mamgain M, Morang S, Nayak J, Kumar K, Singh S, Bakliwal A, Rajoreya A, Vaniyath S, Chattopadhyay D, Chetia R, Gupta A, Dhingra G, Sundriyal D, and Nath UK
- Abstract
Introduction: Next-generation sequencing (NGS) elucidates the diffuse large B-cell lymphoma (DLBCL) genetic characteristics by finding recurrent and novel somatic mutations. This observational study attempted to create an NGS panel with a focus on identifying novel somatic mutations which could have potential clinical and therapeutic implications. This panel was created to look for mutations in 133 genes chosen on basis of a literature review and it was used to sequence the tumor DNA of 20 DLBCL patients after a centralized histopathologic review., Methods: The study included 20 patients having DLBCL. The quality and quantity of tumor cells were accessed by H&E staining and correlated with histopathology and Immunohistochemistry (IHC) status. Patients were grouped as ABC (activated B-cell), PMBL (primary mediastinal large B-cell lymphoma), and other or unclassified subtypes. The lymphoma panel of 133 was designed on targeted sequencing of multiple genes for the coding regions through NGS. The libraries were prepared and sequenced using the Illumina platform. The alignment of obtained sequences was performed using Burrows-Wheeler Aligner and identification of somatic mutations was done using LoFreq (version 2) variant caller. The mutations were annotated using an annotation pipeline (VariMAT). Previously published literature and databases were used for the annotation of clinically relevant mutations. The common variants were filtered for reporting based on the presence in various population databases (1000G, ExAC, EVS, 1000Japanese, dbSNP, UK10K, MedVarDb). A custom read-depth-based algorithm was used to determine CNV (Copy Number Variants) from targeted sequencing experiments. Rare CNVs were detected using a comparison of the test data read-depths with the matched reference dataset. Reportable mutations were prioritized and prepared based on AMP-ASCO-CAP (Association for Molecular Pathology-American Society of Clinical Oncology-College of American Pathologists), WHO guidelines, and also based on annotation metrics from OncoMD (a knowledge base of genomic alterations)., Results: The informativity of the panel was 95 percent. NOTCH 1 was the most frequently mutated gene in 16.1% of patients followed by 12.9% who had ARID1A mutations. MYD88 and TP53 mutations were detected in 9.6% of the patient while 6.4% of patients had CSF3R mutations. NOTCH 1 and TP 53 are the most frequently reported gene in the middle age group (40-60). Mutation in MYD88 is reported in every age group. MYD88 (51%) is the most common mutation in ABC subtypes of DLBCL, followed by NOTCH 1 (44%) and SOCS 1 (33%) according to our findings. NOTCH 1 mutations are frequent in ABC and PMBL subtypes. Closer investigation reveals missense mutation is the most frequent mutation observed in the total cohort targeting 68.4% followed by frameshift deletion reported in 26.3%. Six novel variants have been discovered in this study., Conclusions: This study demonstrates the high yield of information in DLBCL using the NGS Lymphoma panel. Results also highlight the molecular heterogeneity of DLBCL subtypes which indicates the need for further studies to make the results of the NGS more clinically relevant., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Mamgain et al.)
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- 2022
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31. Diffuse large B-cell lymphoma and new insights into its pathobiology and implication in treatment.
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Mamgain G, Singh PK, Patra P, Naithani M, and Nath UK
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The most common non-Hodgkin lymphoma (NHL) subtype is diffuse large B-cell lymphoma (DLBCL). It accounts for roughly 30% of all cases of NHL affecting both nodal and extra nodal sites. There are molecular subtypes of DLBCL, germinal centre subtype (GCB), and activated B-cell (ABC), based on gene expression profiling (GEP), in accumulation to distinct morphological and clinicopathological subtypes. To prognosticate patients, the International Prognostication Index (IPI) and its variants are used. In ABC type DLBCL, limited stage disease is treated with a combination of abbreviated systemic chemotherapy (three cycles) and field radiation therapy. Although advanced stage disease is treated with a full course of chemotherapy as well as novel agents (Bortezomib, Ibrutinib, Lenalidomide). In this review study, we looked at the role of multiple aspects of genetic and microenvironment changes which have effects in DLBCL tumours., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 Journal of Family Medicine and Primary Care.)
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- 2022
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32. Derivative 6 as an additional chromosomal abnormality along with t(15;17): A case report.
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Dalvi RC, Mandava S, Pais AP, Kokate PP, Sinha N, and Nath UK
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- Humans, Oxides, Arsenic Trioxide therapeutic use, Tretinoin, Chromosome Aberrations, Arsenicals, Leukemia, Promyelocytic, Acute drug therapy, Leukemia, Promyelocytic, Acute genetics
- Abstract
Acute promyelocytic leukemia (APL) is a type of acute myeloid leukemia (AML) characterized by the presence of t(15;17)(q22;q21) translocation leading to fusion between PML and RARa gene. Treatment combining all-trans retinoic acid (ATRA) and arsenic trioxide (ATO) has dramatically improved the prognosis of APL. We report a rare finding of primary clone of t(15;17) followed by a sequential clonal evolution of additional derivative chromosome 6 formation by a two hit mechanism. Our case showed a good clinical response with a four years and nine months event free survival after ATRA and ATO combination therapy in spite of existence of three chromosomal abnormalities stating that targeted therapy overcomes the adverse effects of additional genetic markers. However, close monitoring with assessment for long term prognostic behavior is required., Competing Interests: None
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- 2022
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33. Flow Cytometric Expression of CD49d in Newly Diagnosed Chronic Lymphocytic Leukemia and Its Correlation with Established Prognostic Markers.
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Kunnumbrath A, Singh N, Gupta AK, Chowdhury N, Nath UK, and Chandra H
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Introduction Chronic lymphocytic leukemia (CLL) is the commonest hematological malignancy in the West but is relatively uncommon in India. The prognosis of CLL is determined by well-established prognostic markers. CD49d has been emerging as a promising prognostic marker in CLL. CD49d expression in CLL has been found to have an aggressive clinical course, shorter time to first treatment, and poorer prognosis. The aim of this study was to analyze the flow cytometric expression of CD49d in newly diagnosed CLL and to correlate its expression with clinico-hematological parameters. Materials and Methods Twenty-five consecutive patients of CLL, diagnosed on flow cytometry, were included in the study. Patients on treatment or those with relapse were excluded. The panel for flow cytometry included the routine markers used for CLL diagnosis along with CD49d. The expression of CD49d was correlated with clinico-hematological parameters in all patients. "R" software was used for the statistical analysis. Fisher's exact test and Wilcox test were used to assess the correlation of CD49d to categorical and continuous data, respectively. Results The mean age of the patients was 62.6 ± 12.5 years, and 80% were symptomatic at diagnosis. CD49d expression was found in 44% cases, with a higher proportion being male patients. CD49d and prolymphocyte percentage showed a statistically significant correlation ( p = 0.0007). We found a statistically significant correlation between CD49d expression and lymphadenopathy and splenomegaly with p -values of 0.033 and 0.0472, respectively. CD49d positivity correlated significantly with a higher Rai stage ( p = 0.0196) and intermediate and high-risk cases according to Binet staging ( p = 0.033). Conclusion CD49d expression in the present study correlated with a higher prolymphocyte percentage, lymphadenopathy, splenomegaly, and higher Rai and Binet stages. CD49d expression on flow cytometry was reproducible and easy to interpret., Competing Interests: Conflict of Interest None declared., (The Indian Association of Laboratory Physicians. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ).)
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- 2022
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34. Audit of In-Hospital Mortality from a Medical Oncology and Hemato-Oncology Center with the Emphasis on Best Supportive Care.
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Sundriyal D, Nath UK, Kumar P, Gupta S, Joseph D, Vaniyath S, Chetia R, Bakliwal A, Chattopadhyay D, Dhingra G, and Sehrawat A
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Deepak Sundriyal Background and Objectives The newly established medical oncology and hemato-oncology center at the All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand, India, provided us an opportunity to audit in-hospital mortalities with a vision that the audit will serve as a standard for ceaseless improvement. Aim of the study was to initiate a vigorous process for the evaluation of all-cause mortality in patients suffering from cancer. Methods An audit of all in-hospital deaths that occurred during the year 2019 was performed, and comprehensive scrutiny of various parameters (demographic, clinico-pathological, therapeutic, causes of death) was done. Reviews from two independent observers sharpened the infallibility of the audit. The lacunae in the existing practices and the scope for further improvement were noted. Results Forty-five in-hospital deaths were registered during the study period (January-December 2019). The majority of the deaths occurred in patients with advanced stage of malignancy ([ n = 31] 68.8%). Most common causes of death were progressive disease, neutropenic, and non-neutropenic sepsis. Chemotherapeutic agents, growth factors, blood components, and antibiotics were found to be used judiciously as per institutional policy. The reviewers emphasized on the use of comorbidity indexes in the treatment planning and avoiding intensive care unit referrals for patients receiving best supportive care (BSC). Emphasis was put on providing only BSC to the patients with a very limited life expectancy. Emphasis was also laid down on record of out of the hospital deaths. Interpretation and Conclusion The audit disclosed areas of care which require further improvement. The mortality audit exercise should become a regular part of evaluation and training for the ongoing and future quality commitment. This should impact the clinical decision making in an oncology center providing quality care to the terminally ill patients., Competing Interests: Conflict of Interest The authors state that they do not have any conflict of interests., (MedIntel Services Pvt Ltd. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).)
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- 2022
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35. Generalised cutaneous plasmacytomas as initial manifestation in a patient of IgA multiple myeloma.
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Batra A, Vaniyath S, Kumar S, Melanda H, Kumari N, Hazarika N, and Nath UK
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- Humans, Female, Immunoglobulin A, Multiple Myeloma complications, Multiple Myeloma diagnosis, Plasmacytoma diagnostic imaging, Breast Neoplasms, Skin Neoplasms diagnosis
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- 2022
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36. Evaluation of Vascular Health of E-Beta Thalassemia Patients: Effect of Iron Overload.
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De D, Nath UK, and Chakrabarti P
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- Carotid Arteries diagnostic imaging, Carotid Intima-Media Thickness, Ferritins, Humans, Iron Overload, beta-Thalassemia complications, beta-Thalassemia epidemiology
- Abstract
Hb E-β thalassemia is the most common form of hemoglobinopathy in Southeast Asia and eastern India. Iron overload resulting from blood transfusion and increased intestinal iron absorption promotes the formation of reactive oxygen species (ROS), leading to oxidative stress, organ dysfunction, and tissue damage. Of these, cardiovascular complications are the leading cause of mortality. Impaired endothelial function is a biomarker of vascular health in patients with cardiovascular risks. Therefore, assessment of endothelial function is a useful prognostic tool. In the present study, 60 E- β thalassemia patients and 60 healthy, age, sex matched control subjects were taken. The mean hemoglobin and ferritin of thalassemic patients were 7.43gm/dl and 1032 mcg/dl respectively. The vascular health was compared by measuring flow-mediated vasodialation (FMD), arterial elastic parameters, and carotid intima-medial thickness (CIMT). There was lower FMD (7.49%) and higher CIMT (0.46mm) in thalassemic group than control (10.52 % and 0.36mm respectively) (p value< 0.05). Also arterial stiffness is elevated and arterial distensibility is lower in thalassemic patients than control. Among the thalassemic patients FMD or CIMT did not correlate with serum ferritin value. So, the E- β thalassemia patients had poor vascular health and are at a higher risk of developing atherosclerosis and cardio-vascular complication than normal population. The vascular dysfunction does not correlate with serum ferritin value, so regular monitoring with Doppler study is required for early diagnosis of subclinical atherosclerosis in this group of patients. However the effects of chelation therapy, Hydroxyurea, or other targeted therapies needs to be validated by further study., (© Journal of the Association of Physicians of India 2011.)
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- 2021
37. The Role of Microbiota in the Development of Cancer Tumour Cells and Lymphoma of B and T Cells.
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Mamgain G, Patra P, Naithani M, and Nath UK
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Human body harbours enormous numbers of microbial organisms, including bacteria, viruses, and fungi which have a momentous role in well-being and illness in humans. Immune system shelters us from pathogenic bacteria, microorganisms found in human tissues have many benefits related to the functional movement of the host by regulating important procedures such as immunity, signalling, and breakdown. Lymphocytes assume a significant part in the reaction to bacterial colonization, primarily by prompting a safe reaction to obstruction or initiation. Most immunologically occupant cells have a place with the mucosal invulnerable framework and are continually motioned by dendritic cells or other Antigen introducing cells that gather intestinal samples. Thus, Microbiome is a key contributor to developing lymphoma and specific alterations to microbiome composition could attenuate the risk. There is an indication that microbial morphology can affect and control humanoids. The difference in the composition of these microorganisms is associated with tumour development. With the increased knowledge of the connection among the human microbiome and carcinogenesis, the use of these findings to prevent, predict or diagnose of lymphomas has attracted a great attention. In this article, we explored current knowledge of various microbial ecosystems, their connection with carcinogens and the potential for useful microorganisms to control and prevent B and T cell lymphoma., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2021, Mamgain et al.)
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- 2021
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38. Genome-wide identification, genomic organization, and expression profiling of the CONSTANS-like (COL) gene family in petunia under multiple stresses.
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Khatun K, Debnath S, Robin AHK, Wai AH, Nath UK, Lee DJ, Kim CK, and Chung MY
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- Gene Expression Regulation, Plant, Genomics, Phylogeny, Plant Proteins genetics, Plant Proteins metabolism, Stress, Physiological genetics, Petunia genetics, Petunia metabolism
- Abstract
Background: CONSTANS-like (CO-like, COL) are putative zinc-finger transcription factors known to play vital role in various plant biological processes such as control of flowering time, regulation of plant growth and development and responses to stresses. However, no systematic analysis of COL family gene regarding the plant development and stress response has been previously performed in any solanaceous crop. In the present study, a comprehensive genome-wide analysis of COL family genes in petunia has been conducted to figure out their roles in development of organs and stress response., Results: A total of 33 COL genes, 15 PaCOL genes in P. axillaris and 18 PiCOL genes in P. inflata, were identified in petunia. Subsequently, a genome-wide systematic analysis was performed in 15 PaCOL genes. Considering the domain composition and sequence similarity the 15 PaCOL and 18 PiCOL genes were phylogenetically classified into three groups those are conserved among the flowering plants. Moreover, all of the 15 PaCOL proteins were localized in nucleus. Furthermore, differential expression patterns of PaCOL genes were observed at different developmental stages of petunia. Additionally, transcript expression of 15 PaCOL genes under various abiotic and phytohormone treatments showed their response against stresses. Moreover, several cis-elements related to stress, light-responsive, hormone signaling were also detected in different PaCOL genes., Conclusion: The phylogenetic clustering, organ specific expression pattern and stress responsive expression profile of conserved petunia COL genes indicating their involvement in plant growth and development and stress response mechanism. This work provide a significant foundation for understanding the biological roles of petunia COL genes in plant growth, development and in stress response., (© 2021. The Author(s).)
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- 2021
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39. Introgression of Bacterial Blight Resistance Genes in the Rice Cultivar Ciherang: Response against Xanthomonas oryzae pv. oryzae in the F 6 Generation.
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Biswas PL, Nath UK, Ghosal S, Goswami G, Uddin MS, Ali OM, Latef AAHA, Laing AM, Gao YM, and Hossain A
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Bacterial blight (BB) is caused by Xanthomonas oryzae pv. oryzae and is one of the most important diseases in rice. It results in significantly reduced productivity throughout all rice-growing regions of the world. Four BB resistance genes have been reported; however, introgression of a single gene into rice has not been able to sufficiently protect rice against BB infection. Pyramiding of effective BB resistance genes (i.e., Xa genes) into background varieties is a potential approach to controlling BB infection. In this study, combinations of four BB resistance genes, Xa4 , xa5 , xa13 , and Xa21 , were pyramided into populations. The populations were derived from crossing Ciherang (a widespread Indonesian rice variety) with IRBB60 (resistance to BB). Promising recombinants from the F
6 generation were identified by scoring the phenotype against three virulent bacterial strains, C5, P6, and V, which cause widespread BB infection in most rice-growing countries. Pyramiding of genes for BB resistance in 265 recombinant introgressed lines (RILs) were confirmed through marker-assisted selection (MAS) of the F5 and F6 generations using gene-specific primers. Of these 265 RILs, 11, 34 and 45 lines had four, three, or two BB resistance genes, respectively. The RILs had pyramiding of two or three resistance genes, with the Xa4 resistance gene showing broad spectrum resistance against Xoo races with higher agronomic performance compared to their donor and recipients parents. The developed BB-resistant RILs have high yield potential to be further developed for cultivation or as sources of BB resistance donor material for varietal improvement in other rice lines.- Published
- 2021
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40. Life-Threatening Cryptosporidium Diarrhea in a Child on Induction Chemotherapy for Acute Lymphoblastic Leukemia.
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Bakliwal A, Nath UK, Mohanty A, and Gupta P
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Cryptosporidium infection is usually self-limiting but can be life-threatening in immunocompromised patients. It has emerged as an important cause of diarrhea in such patients worldwide. In this report, we describe a case of Cryptosporidium diarrhea in a child on induction therapy for acute lymphoblastic leukemia (ALL); timely diagnosis using multiplex polymerase chain reaction (PCR) led to definitive treatment and a favorable outcome in our patient., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2021, Bakliwal et al.)
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- 2021
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41. RNA-Seq-Based Profiling of pl Mutant Reveals Transcriptional Regulation of Anthocyanin Biosynthesis in Rice ( Oryza sativa L.).
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Xu R, Pan R, Zhang Y, Feng Y, Nath UK, Gan Y, Shi C, and Akhter D
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- Anthocyanins genetics, Gene Expression Regulation, Plant genetics, Mutant Proteins genetics, Oryza growth & development, Pigmentation genetics, Plant Breeding, Plant Leaves growth & development, RNA-Seq, Anthocyanins biosynthesis, Oryza genetics, Plant Leaves genetics, Transcriptome genetics
- Abstract
Purple-colored leaves in plants attain much interest for their important biological functions and could be a potential source of phenotypic marker in selecting individuals in breeding. The transcriptional profiling helps to precisely identify mechanisms of leaf pigmentation in crop plants. In this study, two genetically unlike rice genotypes, the mutant purple leaf ( pl ) and wild (WT) were selected for RNA-sequencing and identifying the differentially expressed genes (DEGs) that are regulating purple leaf color. In total, 609 DEGs were identified, of which 513 and 96 genes were up- and down-regulated, respectively. The identified DEGs are categorized into metabolic process, carboxylic acid biosynthesis, phenylpropanoids, and phenylpropanoid biosynthesis process enrichment by GO analysis. Kyoto Encyclopedia of Genes and Genomes (KEGG) confirmed their association with phenylpropanoid synthesis, flavonoid synthesis, and phenylalanine metabolism. To explore molecular mechanism of purple leaf color, a set of anthocyanin biosynthetic and regulatory gene expression patterns were checked by qPCR. We found that OsPAL ( Os02g0626100 , Os02g0626400 , Os04g0518400 , Os05g0427400 and Os02g0627100 ), OsF3H ( Os03g0122300 ), OsC4HL ( Os05g0320700 ), and Os4CL5 ( Os08g0448000 ) are associated with anthocyanin biosynthesis, and they were up-regulated in pl leaves. Two members of regulatory MYB genes ( OsMYB55 ; Os05g0553400 and Os08g0428200 ), two bHLH genes ( Os01g0196300 and Os04g0300600 ), and two WD40 genes ( Os11g0132700 and Os11g0610700 ) also showed up-regulation in pl mutant. These genes might have significant and vital roles in pl leaf coloration and could provide reference materials for further experimentation to confirm the molecular mechanisms of anthocyanin biosynthesis in rice.
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- 2021
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42. COVID 19 infection associated with thrombotic thrombocytopenic purpura.
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Dhingra G, Maji M, Mandal S, Vaniyath S, Negi G, and Nath UK
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- Adult, Antineoplastic Agents administration & dosage, Female, Humans, Immunologic Factors administration & dosage, Plasma Exchange methods, Platelet Count methods, SARS-CoV-2 isolation & purification, Treatment Outcome, ADAMTS13 Protein blood, ADAMTS13 Protein deficiency, COVID-19 blood, COVID-19 complications, COVID-19 diagnosis, Purpura, Thrombotic Thrombocytopenic blood, Purpura, Thrombotic Thrombocytopenic diagnosis, Purpura, Thrombotic Thrombocytopenic etiology, Purpura, Thrombotic Thrombocytopenic therapy, Rituximab administration & dosage, Vincristine administration & dosage
- Abstract
Thrombotic thrombocytopenic purpura (TTP) which can cause significant mortality is a thrombotic microangiopathy due to deficiency of VWF cleaving protease ADAMTS13 and as per medical literature there are examples that TTP can be caused by COVID 19 infection. A 35 years old female after admission with right sided weakness and slurring of speech was found to be COVID positive and diagnosed as a case of TTP. Patient had absent ADAMTS13 level on day 1. Treatment was started with therapeutic plasma exchange (TPE) later injection Vincristine and Rituximab was given after 4th TPE as it was suspected as refractory case. Finally patient received 16 TPE procedures with cryo poor plasma as exchange fluid and gradually her platelet count started to maintain normal and she was discharged. Specific management and such association of this type of cases need to be studied more judiciously., (© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2021
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43. Trichosporon dohaense causing life-threatening fungemia in acute leukemia: First case report from India.
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Mohanty A, Meena S, Nath UK, Bakliwal A, Kaistha N, and Gupta P
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- Adult, Antifungal Agents therapeutic use, Fungemia drug therapy, Humans, India, Leukemia, Myeloid, Acute complications, Leukemia, Myeloid, Acute drug therapy, Leukemia, Myeloid, Acute microbiology, Male, Risk Factors, Trichosporonosis drug therapy, Fungemia diagnosis, Trichosporon pathogenicity, Trichosporonosis blood, Trichosporonosis diagnosis
- Abstract
Competing Interests: None
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- 2021
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44. Febrile neutropenia due to COVID-19 in an immunocompetent patient.
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Devi YM, Sehrawat A, Panda PK, and Nath UK
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- Aged, Humans, Male, COVID-19 complications, COVID-19 diagnosis, Febrile Neutropenia virology, Immunocompromised Host
- Abstract
While lymphopenia has been a common finding in COVID-19 infection, particularly in severe cases, febrile neutropenia has been very rarely reported in immunocompetent patients with COVID-19. Herein, we report the case of a 76-year-old hypertensive and diabetic man who was hospitalised with severe COVID-19 infection and developed delayed-onset severe neutropenia with neutropenic fever, which responded to treatment with antibiotics and granulocyte colony-stimulating factor. This case highlights the importance of identifying a rare complication (febrile neutropenia on the fifth week) of COVID-19 infection in hospitalised patients by intensive monitoring and aggressive management for favourable outcomes., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2021. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2021
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45. Quality of life and factors affecting it in adult cancer patients undergoing cancer chemotherapy in a tertiary care hospital.
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Ramasubbu SK, Pasricha RK, Nath UK, Rawat VS, and Das B
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- Adult, Antineoplastic Agents administration & dosage, Cross-Sectional Studies, Educational Status, Female, Humans, India epidemiology, Male, Middle Aged, Neoplasms complications, Neoplasms mortality, Neoplasms psychology, Surveys and Questionnaires statistics & numerical data, Survival Analysis, Tertiary Care Centers statistics & numerical data, Young Adult, Antineoplastic Agents adverse effects, Neoplasms drug therapy, Quality of Life
- Abstract
Background: Cancer is the second most common cause of deaths worldwide. Likewise, in India, it is a major health problem, and disease burden is escalating every year. Cancer chemotherapy produces unfavorable effects on the well-being of an individual. Since the past few years, quality of life (QoL) is considered as the main goal of cancer treatment in the survival of a patient., Aim: This current study aimed to assess the QoL and factors affecting it in adult cancer patients undergoing chemotherapy treatment., Methods and Results: An analytical, cross-sectional study was conducted to achieve the objectives, employing the consecutive sampling method. A total of 120 adult (>19 years) patients were recruited from daycare chemotherapy unit of a tertiary care hospital. The data were collected using patient record form and Functional Assessment of Cancer Therapy-General (FACT-G), a quality of life (QoL) questionnaire. The overall mean score of quality of life (QoL) was 61.933 ± 5.85502. The domains of functional well-being and emotional well-being were most negatively affected after cancer chemotherapy. Education (illiteracy) and occupation (unemployment) were negatively associated with overall quality of life (QoL) of cancer patients on chemotherapy. Adverse drug reactions due to cancer chemotherapy negatively affect the quality of life (QoL) of cancer patients. Education (illiteracy) affects social well-being domain of cancer patients. Working in the government/private sector has a positive impact on functional well-being domain of quality of life (QoL)., Conclusion: The study findings suggest an overall low quality of life (QoL) among adult cancer patients undergoing chemotherapy at our setup. It has been identified as a stressful therapy, also affecting both psychological and physical well-being. Poor infrastructure, illiteracy, poverty, and lack of proper treatment facilities at most centres often lead to poor survival outcomes and hence focus has always been on achieving quantity of life rather than quality of life (QoL). This is further complicated due to nonavailability of validated tools in local vernacular, apathy of the treating physicians in the context of QoL aspects and social and cultural factors that are unique to this society. Psycho-oncology needs to become an integral entity of comprehensive cancer care., (© 2020 The Authors. Cancer Reports published by Wiley Periodicals LLC.)
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- 2021
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46. Visceral leishmaniasis masquerading as drug-induced pancytopenia in myasthenia gravis.
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Nath UK, Bhattacharyya D, Chattopadhya D, Dhingra G, Azad S, and Mohanty A
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- Azathioprine adverse effects, Diagnosis, Differential, Humans, Immunosuppressive Agents adverse effects, Male, Middle Aged, Pancytopenia chemically induced, Pancytopenia diagnosis, Travel, Azathioprine administration & dosage, Immunosuppressive Agents administration & dosage, Leishmaniasis, Visceral diagnosis, Myasthenia Gravis drug therapy
- Abstract
Visceral leishmaniasis (VL), also known as kala-azar (black fever in Hindi), is a disease primarily caused by Leishmania donovani. The most important clinical manifestation of visceral leishmaniasis is fever. Nonspecific laboratory findings of visceral leishmaniasis include anemia, neutropenia, eosinopenia, and thrombocytopenia. Definitive diagnosis of visceral leishmaniasis requires the demonstration of either parasite by smear or tissue by culture (usually bone marrow or spleen). Myasthenia gravis is an autoimmune disease caused by antibodies to acetylcholine receptors in the post-junctional membrane of the neuromuscular junction. It typically presents with fatigable muscle weakness without any sensory or brain involvement. It is usually treated with corticosteroids and immunosuppressants like azathioprine. Here we encountered a confirmed case of myasthenia gravis on azathioprine with pancytopenia. While working up to evaluate pancytopenia, bone marrow examination revealed presence of Donovan bodies and the patient showed good response to liposomal amphotericin-B. In retrospect, a case of myasthenia gravis, who presented with pancytopenia presumably drug-induced, was found to have visceral leishmaniasis.
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- 2021
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47. Frequency of anemia and micronutrient deficiency among children with cleft lip and palate: a single-center cross-sectional study from Uttarakhand, India.
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Chattopadhyay D, Vathulya M, Naithani M, Jayaprakash PA, Palepu S, Bandyopadhyay A, Kapoor A, and Nath UK
- Abstract
Background: Children with cleft lip and/or palate can be undernourished due to feeding difficulties after birth. A vicious cycle ensues where malnutrition and low body weight precludes the child from having the corrective surgery, in the absence of which the child fails to gain weight. This study aimed to identify the proportion of malnutrition, including the deficiency of major micronutrients, namely iron, folate and vitamin B12, in children with cleft lip and/or palate and thus help in finding out what nutritional interventions can improve the scenario for these children., Methods: All children less than 5 years with cleft lip and/or cleft palate attending our institute were included. On their first visit, following were recorded: demographic data, assessment of malnutrition, investigations: complete blood count and peripheral blood film examination; serum albumin, ferritin, iron, folate, and vitamin B12 levels., Results: Eighty-one children with cleft lip and/or palate were included. Mean age was 25.37± 21.49 months (range, 3-60 months). In 53% of children suffered from moderate to severe wasting, according to World Health Organization (WHO) classification. Iron deficiency state was found in 91.6% of children. In 35.80% of children had vitamin B12 deficiency and 23.45% had folate deficiency. No correlation was found between iron deficiency and the type of deformity., Conclusion: Iron deficiency state is almost universally present in children with cleft lip and palate. Thus, iron and folic acid supplementation should be given at first contact to improve iron reserve and hematological parameters for optimum and safe surgery.
- Published
- 2021
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48. CaPSY1 gene plays likely the key role in carotenoid metabolism of pepper (Capsicum annuum) at ripening.
- Author
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Wei X, Meng C, Yuan Y, Nath UK, Zhao Y, Wang Z, Yang S, Li L, Niu L, Yao Q, Wei F, and Zhang X
- Subjects
- Carotenoids, Fruit genetics, Plant Breeding, Vegetables, Capsicum genetics
- Abstract
Phytoene synthase (PSY) is the first committed enzyme in carotenoid biosynthesis, which plays important role in ripen fruit colour. However, the roles of CaPSY genes are not explained detail in ripen pepper fruit colour. In this study, three CaPSY genes (CaPSY1, CaPSY2 and CaPSY3) were identified through basic local alignment search tool (BLAST) in pepper genome. Among them, CaPSY1 was predicted as putative candidate based on relative expression values using five developmental stages of fruit in Zunla-1 cultivar and also in ripen fruits of five contrasting pepper lines. The CaPSY1 was characterised functionally through virus-induced gene silencing (VIGS) in ripen fruits and overexpression in Arabidopsis thaliana (L.) Heynh. Silencing of CaPSY1 gene altered colour with increased lutein and decreased zeaxanthin content in pepper fruits. The transgenic Arabidopsis line CaPSY1 gene showed higher expression of PSY1 gene compared with WT and dwarf phenotype due to reduction of GA3 (gibberellic acid) and higher abscisic acid (ABA) content. Our results confirmed that CaPSY1 gene involved in carotenoid metabolism in ripen pepper fruit and provide clue to develop bright red coloured pepper lines through breeding.
- Published
- 2021
- Full Text
- View/download PDF
49. Prevalence, severity, and nature of risk factors associated with drug-drug interactions in geriatric patients receiving cancer chemotherapy: A prospective study in a tertiary care teaching hospital.
- Author
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Ramasubbu SK, Mahato SK, Agnihotri A, Pasricha RK, Nath UK, and Das B Dr
- Subjects
- Age Factors, Aged, Aged, 80 and over, Antineoplastic Agents pharmacokinetics, Comorbidity, Cross-Sectional Studies, Drug Interactions, Drug-Related Side Effects and Adverse Reactions etiology, Female, Hospitals, Teaching statistics & numerical data, Humans, India, Male, Middle Aged, Neoplasms epidemiology, Prevalence, Prospective Studies, Risk Factors, Tertiary Care Centers statistics & numerical data, Antineoplastic Agents adverse effects, Drug-Related Side Effects and Adverse Reactions epidemiology, Neoplasms drug therapy, Polypharmacy statistics & numerical data
- Abstract
Introduction: Polypharmacy increases hazard of drug-drug interactions(DDIs), hospitalization, treatment toxicity, and mortality in elderly individuals with cancer. The present study explores and analyzes prevalence and severity of DDIs in geriatric cancer patients subjected to anticancer chemotherapy, their mechanisms, stratification of severity, and correlation between DDI risk and number of medications taken., Methods: This was a cross-sectional study conducted between January-July 2019 at the Medical Oncology/Hematology and Radiation-Oncology Departments, All India Institute of Medical Sciences(AIIMS) Rishikesh. The study included a convenience sampling of 126 geriatric cancer patients., Results: 126 patients were enrolled in present study. DDIs were identified in 97.6% of elderly cancer patients, and 88.9% had at least one DDI with antineoplastic medications. Highest number of DDIs involving antineoplastic medications in any given patient was 12. DDIs involving medications used for treatment of non-cancerous diseases were observed in 83.3% of patients; highest number of interactions identified in any given patient was 15. Out of 473 interactions, 237(50.1%) DDIs were attributable to pharmacodynamic mechanisms of action. 126(27%) of DDIs involved pharmacokinetic mechanisms and 110(23.6%) involved unknown mechanisms. In this present study, total number of DDIs could be positively correlated with total number of medications and number of health problems., Conclusions: Geriatric cancer patients are at high risk of DDIs ascribable to polypharmacy. Physicians may utilize online DDI checking softwares to alert themselves, characterize potential DDIs, and modify medications judiciously. An integrative and algorithmic approach with inclusion of geriatricians, oncologists, cardiologists, general practitioners, and clinical pharmacologists/ pharmacists is imperative to optimize drug therapy., (Copyright © 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2021
- Full Text
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50. Genome-Wide Identification and Expression Profiling of the PDI Gene Family Reveals Their Probable Involvement in Abiotic Stress Tolerance in Tomato ( Solanum Lycopersicum L.).
- Author
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Wai AH, Waseem M, Khan ABMMM, Nath UK, Lee DJ, Kim ST, Kim CK, and Chung MY
- Subjects
- Abscisic Acid metabolism, Fruit growth & development, Gene Expression Profiling, Gene Expression Regulation, Plant, Genes, Plant, Multigene Family, Plant Proteins metabolism, Protein Disulfide-Isomerases metabolism, Adaptation, Physiological genetics, Solanum lycopersicum physiology, Plant Proteins genetics, Protein Disulfide-Isomerases genetics, Stress, Physiological genetics
- Abstract
Protein disulfide isomerases (PDI) and PDI-like proteins catalyze the formation and isomerization of protein disulfide bonds in the endoplasmic reticulum and prevent the buildup of misfolded proteins under abiotic stress conditions. In the present study, we conducted the first comprehensive genome-wide exploration of the PDI gene family in tomato ( Solanum lycopersicum L.). We identified 19 tomato PDI genes that were unevenly distributed on 8 of the 12 tomato chromosomes, with segmental duplications detected for 3 paralogous gene pairs. Expression profiling of the PDI genes revealed that most of them were differentially expressed across different organs and developmental stages of the fruit. Furthermore, most of the PDI genes were highly induced by heat, salt, and abscisic acid (ABA) treatments, while relatively few of the genes were induced by cold and nutrient and water deficit (NWD) stresses. The predominant expression of SlPDI1-1 , SlPDI1-3 , SlPDI1-4 , SlPDI2-1 , SlPDI4-1 , and SlPDI5-1 in response to abiotic stress and ABA treatment suggested they play regulatory roles in abiotic stress tolerance in tomato in an ABA-dependent manner. Our results provide new insight into the structure and function of PDI genes and will be helpful for the selection of candidate genes involved in fruit development and abiotic stress tolerance in tomato.
- Published
- 2020
- Full Text
- View/download PDF
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