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  1. Article ; Online: MicroRNA, miR-501 regulate the V(D)J recombination in B cells.

    Kumari, Rupa / Roy, Urbi / Desai, Sagar / Mondal, Arannya S / Nair, Rajshree R / Nilavar, Namrata / Choudhary, Bibha / Raghavan, Sathees C

    The Biochemical journal

    2023  Volume 480, Issue 24, Page(s) 2061–2077

    Abstract: ... responsible for V(D)J recombination, is important to prevent genomic rearrangements and ... assay. Importantly, overexpression of miRNAs led to inhibition of V(D)J recombination in B cells ... and thus V(D)J recombination and its possible implications on immunoglobulin leukemogenesis. ...

    Abstract The stringent regulation of RAGs (Recombination activating genes), the site-specific endonuclease responsible for V(D)J recombination, is important to prevent genomic rearrangements and chromosomal translocations in lymphoid cells. In the present study, we identify a microRNA, miR-501, which can regulate the expression of RAG1 in lymphoid cells. Overexpression of the pre-miRNA construct led to the generation of mature miRNAs and a concomitant reduction in RAG1 expression, whereas inhibition using anti-miRs resulted in its enhanced expression. The direct interaction of the 3'UTR of miR-501 with RAG1 was confirmed by the reporter assay. Importantly, overexpression of miRNAs led to inhibition of V(D)J recombination in B cells, revealing their impact on the physiological function of RAGs. Of interest is the inverse correlation observed for miR-501 with RAG1 in various leukemia patients and lymphoid cell lines, suggesting its possible use in cancer therapy. Thus, our results reveal the regulation of RAG1 by miR-501-3p in B cells and thus V(D)J recombination and its possible implications on immunoglobulin leukemogenesis.
    MeSH term(s) Humans ; V(D)J Recombination/genetics ; Homeodomain Proteins/genetics ; Homeodomain Proteins/metabolism ; MicroRNAs/genetics ; B-Lymphocytes
    Chemical Substances Homeodomain Proteins ; MicroRNAs ; MIRN501 microRNA, human
    Language English
    Publishing date 2023-10-29
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2969-5
    ISSN 1470-8728 ; 0006-2936 ; 0306-3275 ; 0264-6021
    ISSN (online) 1470-8728
    ISSN 0006-2936 ; 0306-3275 ; 0264-6021
    DOI 10.1042/BCJ20230250
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Enlargement of the Pancreas in Children Diagnosed with Acute Pancreatitis: An Approach Based on P/V Ratio.

    Raut, Dhanraj S / Desai, Shubhangi A / Raje, Dhananjay V / Singh, Dinesh / Dandge, Vithalrao P

    The Indian journal of radiology & imaging

    2022  Volume 32, Issue 4, Page(s) 488–496

    Abstract: ... ...

    Abstract Background
    Language English
    Publishing date 2022-08-30
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 605869-3
    ISSN 0971-3026 ; 0970-2016
    ISSN 0971-3026 ; 0970-2016
    DOI 10.1055/s-0042-1754368
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Impact of Noninvasive Respiratory Support in Patients With COVID-19 Requiring V-V ECMO.

    Ahmad, Qamar / Green, Adam / Chandel, Abhimanyu / Lantry, James / Desai, Mehul / Simou, Jikerkhoun / Osborn, Erik / Singh, Ramesh / Puri, Nitin / Moran, Patrick / Dalton, Heidi / Speir, Alan / King, Christopher

    ASAIO journal (American Society for Artificial Internal Organs : 1992)

    2022  Volume 68, Issue 2, Page(s) 171–177

    Abstract: ... unknown. We reviewed data of patients with coronavirus disease 2019 (COVID-19) treated with V-V ECMO ...

    Abstract The impact of the duration of noninvasive respiratory support (RS) including high-flow nasal cannula and noninvasive ventilation before the initiation of extracorporeal membrane oxygenation (ECMO) is unknown. We reviewed data of patients with coronavirus disease 2019 (COVID-19) treated with V-V ECMO at two high-volume tertiary care centers. Survival analysis was used to compare the effect of duration of RS on liberation from ECMO. A total of 78 patients required ECMO and the median duration of RS and invasive mechanical ventilation (IMV) before ECMO was 2 days (interquartile range [IQR]: 0, 6) and 2.5 days (IQR: 1, 5), respectively. The median duration of ECMO support was 24 days (IQR: 11, 73) and 59.0% (N = 46) remained alive at the time of censure. Patients that received RS for ≥3 days were significantly less likely to be liberated from ECMO (HR: 0.46; 95% CI: 0.26-0.83), IMV (HR: 0.42; 95% CI: 0.20-0.89) or be discharged from the hospital (HR: 0.52; 95% CI: 0.27-0.99) compared to patients that received RS for <3 days. There was no difference in hospital mortality between the groups (HR: 1.12; 95% CI: 0.56-2.26). These relationships persisted after adjustment for age, gender, and duration of IMV. Prolonged duration of RS before ECMO may result in lung injury and worse subsequent outcomes.
    MeSH term(s) COVID-19 ; Extracorporeal Membrane Oxygenation/adverse effects ; Humans ; Respiration, Artificial ; Retrospective Studies ; SARS-CoV-2 ; Treatment Outcome
    Language English
    Publishing date 2022-01-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 759982-1
    ISSN 1538-943X ; 0162-1432 ; 1058-2916
    ISSN (online) 1538-943X
    ISSN 0162-1432 ; 1058-2916
    DOI 10.1097/MAT.0000000000001626
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Prof. (Dr.) V R Brave.

    Desai, Rajiv S

    Journal of oral and maxillofacial pathology : JOMFP

    2019  Volume 23, Issue 3, Page(s) 324–325

    Language English
    Publishing date 2019-12-23
    Publishing country India
    Document type Journal Article
    ZDB-ID 2390999-7
    ISSN 1998-393X ; 0973-029X
    ISSN (online) 1998-393X
    ISSN 0973-029X
    DOI 10.4103/jomfp.JOMFP_324_19
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Enlargement of the Pancreas in Children Diagnosed with Acute Pancreatitis: An Approach Based on P/V Ratio

    Raut, Dhanraj S. / Desai, Shubhangi A. / Raje, Dhananjay V. / Singh, Dinesh / Dandge, Vithalrao P.

    Indian Journal of Radiology and Imaging

    2022  Volume 32, Issue 04, Page(s) 488–496

    Abstract: ... Enlargement of the pancreas is often envisaged in such conditions. This study evaluates P/V ratio, as a marker ... imaging-based diagnostic criterion for acute pancreatitis in children based on P/V ratio.: Material and ... for pancreatic disorders, from a single hospital center. The age of children ranged between 2 and 18 years. P/V ...

    Abstract Background: Acute pancreatitis is a reversible inflammation of the pancreatic parenchyma. Enlargement of the pancreas is often envisaged in such conditions. This study evaluates P/V ratio, as a marker to decide pancreatic enlargement in disease condition.
    Purpose: The aim of this study was to develop imaging-based diagnostic criterion for acute pancreatitis in children based on P/V ratio.
    Material and Methods: This study included 37 children with acute pancreatitis and 283 children asymptomatic for pancreatic disorders, from a single hospital center. The age of children ranged between 2 and 18 years. P/V ratio, which is the ratio of greatest anteroposterior dimension of the head, body, and tail of the pancreas relative to the transverse lumbar vertebral body, was obtained for each child through ultrasonographic examination. Age-adjusted receiver operating characteristics (AROC) analysis was performed on P/V ratio at presentation for each pancreatic region, and the sensitivity at 90% specificity, the threshold errors, and the corresponding cutoffs were obtained. The enlargement assessment was also done after clinical recovery by referring to the cutoffs of respective regions.
    Results: AROC analysis for males and females resulted into a maximum sensitivity of 83.33 and 81.67%, respectively, at 90% specificity for head. The error thresholds for both the groups were same, i.e., 0.098, indicating that 90% of the observations had errors less than the threshold. The corresponding P/V ratio cutoff for males and females was 0.43 and 0.42, respectively.
    Conclusion: Radiologists and clinicians can refer a cutoff value of 0.4 for each region, along with hypoechogenicity, to decide about enlargement of the pancreas in acute pancreatitis condition.
    Keywords acute pancreatitis ; acute recurrent pancreatitis ; age-adjusted receiver operating characteristics ; anteroposterior
    Language English
    Publishing date 2022-08-30
    Publisher Thieme Medical and Scientific Publishers Pvt. Ltd.
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 605869-3
    ISSN 1998-3808 ; 0971-3026 ; 0970-2016
    ISSN (online) 1998-3808
    ISSN 0971-3026 ; 0970-2016
    DOI 10.1055/s-0042-1754368
    Database Thieme publisher's database

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  6. Article ; Online: Policy Changes as a Context for Moral Injury Development in the Wake of Dobbs v Jackson Women's Health Organization.

    Desai, Alisha / Holliday, Ryan / Wallis, Marianne / Thornewill, Alice / Bahraini, Nazanin H / Borges, Lauren M

    Obstetrics and gynecology

    2022  Volume 141, Issue 1, Page(s) 15–21

    Abstract: The U.S. Supreme Court's 2022 ruling in Dobbs v Jackson Women's Health Organization held that the U ...

    Abstract The U.S. Supreme Court's 2022 ruling in Dobbs v Jackson Women's Health Organization held that the U.S. Constitution does not confer the right to an abortion, which set into motion an overhaul of reproductive health care services in certain states. Health care professionals are now operating within a rapidly changing landscape of clinical practice in which they may experience conflict between personal and professional morals (eg, bodily autonomy, patient advocacy), uncertainty regarding allowable practices, and fear of prosecution (eg, loss of medical license) related to reproductive health care services. The ethical dilemmas stemming from Dobbs create a context for exposure to potentially morally injurious events, moral distress, and moral injury (ie, functional impairment stemming from exposure to moral violations) among health care professionals. Considerations related to clinical intervention and approaches to policy are reviewed. Early identification of health care professionals' potentially morally injurious event exposure related to restricted reproductive services is critical for preventing and intervening on moral injury, with implications for improving functioning and retention within the medical field.
    MeSH term(s) Female ; Humans ; Pregnancy ; Abortion, Induced ; Morals ; Policy ; Stress Disorders, Post-Traumatic/etiology ; Women's Health
    Language English
    Publishing date 2022-11-30
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 207330-4
    ISSN 1873-233X ; 0029-7844
    ISSN (online) 1873-233X
    ISSN 0029-7844
    DOI 10.1097/AOG.0000000000005009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: MicroRNA miR-29c regulates RAG1 expression and modulates V(D)J recombination during B cell development.

    Kumari, Rupa / Roy, Urbi / Desai, Sagar / Nilavar, Namrata M / Van Nieuwenhuijze, Annemarie / Paranjape, Amita / Radha, Gudapureddy / Bawa, Pushpinder / Srivastava, Mrinal / Nambiar, Mridula / Balaji, Kithiganahalli Narayanaswamy / Liston, Adrian / Choudhary, Bibha / Raghavan, Sathees C

    Cell reports

    2021  Volume 36, Issue 2, Page(s) 109390

    Abstract: ... lymphoid-specific genes, which initiate V(D)J recombination in developing lymphocytes. We report ... and direct interaction of miR-29c to RAG1. Modulation of miR-29c levels leads to change in V(D)J ...

    Abstract Recombination activating genes (RAGs), consisting of RAG1 and RAG2, are stringently regulated lymphoid-specific genes, which initiate V(D)J recombination in developing lymphocytes. We report the regulation of RAG1 through a microRNA (miRNA), miR-29c, in a B cell stage-specific manner in mice and humans. Various lines of experimentation, including CRISPR-Cas9 genome editing, demonstrate the target specificity and direct interaction of miR-29c to RAG1. Modulation of miR-29c levels leads to change in V(D)J recombination efficiency in pre-B cells. The miR-29c expression is inversely proportional to RAG1 in a B cell developmental stage-specific manner, and miR-29c null mice exhibit a reduction in mature B cells. A negative correlation of miR-29c and RAG1 levels is also observed in leukemia patients, suggesting the potential use of miR-29c as a biomarker and a therapeutic target. Thus, our results reveal the role of miRNA in the regulation of RAG1 and its relevance in cancer.
    MeSH term(s) 3' Untranslated Regions/genetics ; Animals ; B-Lymphocytes/cytology ; B-Lymphocytes/metabolism ; Base Sequence ; CRISPR-Cas Systems/genetics ; Cell Line, Tumor ; Gene Expression Regulation ; Homeodomain Proteins/genetics ; Homeodomain Proteins/metabolism ; Humans ; Luciferases/metabolism ; Lymphocytes/metabolism ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; MicroRNAs/genetics ; MicroRNAs/metabolism ; RNA Processing, Post-Transcriptional/genetics ; V(D)J Recombination/genetics ; Mice
    Chemical Substances 3' Untranslated Regions ; Homeodomain Proteins ; MIRN29 microRNA, mouse ; MicroRNAs ; RAG-1 protein (128559-51-3) ; Luciferases (EC 1.13.12.-)
    Language English
    Publishing date 2021-07-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2021.109390
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Clinical and pathologic correlation of cutaneous COVID-19 vaccine reactions including V-REPP: A registry-based study.

    McMahon, Devon E / Kovarik, Carrie L / Damsky, William / Rosenbach, Misha / Lipoff, Jules B / Tyagi, Anisha / Chamberlin, Grace / Fathy, Ramie / Nazarian, Rosalynn M / Desai, Seemal R / Lim, Henry W / Thiers, Bruce H / Hruza, George J / French, Lars E / Blumenthal, Kimberly / Fox, Lindy P / Freeman, Esther E

    Journal of the American Academy of Dermatology

    2021  Volume 86, Issue 1, Page(s) 113–121

    Abstract: ... We propose the acronym "V-REPP" (vaccine-related eruption of papules and plaques) for this spectrum ...

    Abstract Background: Cutaneous reactions after COVID-19 vaccination have been commonly reported; however, histopathologic features and clinical correlations have not been well characterized.
    Methods: We evaluated for a history of skin biopsy all reports of reactions associated with COVID-19 vaccination identified in an international registry. When histopathology reports were available, we categorized them by reaction patterns.
    Results: Of 803 vaccine reactions reported, 58 (7%) cases had biopsy reports available for review. The most common histopathologic reaction pattern was spongiotic dermatitis, which clinically ranged from robust papules with overlying crust, to pityriasis rosea-like eruptions, to pink papules with fine scale. We propose the acronym "V-REPP" (vaccine-related eruption of papules and plaques) for this spectrum. Other clinical patterns included bullous pemphigoid-like (n = 12), dermal hypersensitivity (n = 4), herpes zoster (n = 4), lichen planus-like (n = 4), pernio (n = 3), urticarial (n = 2), neutrophilic dermatosis (n = 2), leukocytoclastic vasculitis (n = 2), morbilliform (n = 2), delayed large local reactions (n = 2), erythromelalgia (n = 1), and other (n = 5).
    Limitations: Cases in which histopathology was available represented a minority of registry entries. Analysis of registry data cannot measure incidence.
    Conclusion: Clinical and histopathologic correlation allowed for categorization of cutaneous reactions to the COVID-19 vaccine. We propose defining a subset of vaccine-related eruption of papules and plaques, as well as 12 other patterns, following COVID-19 vaccination.
    MeSH term(s) COVID-19/prevention & control ; COVID-19 Vaccines/adverse effects ; Exanthema/chemically induced ; Humans ; Registries ; Skin Diseases/chemically induced
    Chemical Substances COVID-19 Vaccines
    Language English
    Publishing date 2021-09-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603641-7
    ISSN 1097-6787 ; 0190-9622
    ISSN (online) 1097-6787
    ISSN 0190-9622
    DOI 10.1016/j.jaad.2021.09.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Rapid, selective capture of toxic oxo-anions of Se(iv), Se(vi) and As(v) from water by an ionic metal–organic framework (iMOF)

    Sharma, Shivani / Let, Sumanta / Desai, Aamod V / Dutta, Subhajit / Karuppasamy, Gopalsamy / Shirolkar, Mandar M / Babarao, Ravichandar / Ghosh, Sujit K

    Journal of materials chemistry A. 2021 Mar. 16, v. 9, no. 10

    2021  

    Abstract: ... tendency, for instance oxo-anions of selenium and arsenic (Se(iv)/Se(vi)/As(v)), is an arduous challenge ... of Se(vi)/As(v)/Se(iv) even at ultralow concentrations (∼1000 ppb). The cationic network illustrates ...

    Abstract Designing selective sorbent materials to sequestrate toxic oxo-anions having weaker binding tendency, for instance oxo-anions of selenium and arsenic (Se(iv)/Se(vi)/As(v)), is an arduous challenge. Herein, we demonstrate the molecular shape recognition aided synthesis of a chemically stable cationic MOF (iMOF-3C) which exhibits fast, selective removal behavior (∼99% in 5 min) towards toxic oxo-anions of Se(vi)/As(v)/Se(iv) even at ultralow concentrations (∼1000 ppb). The cationic network illustrates superior performance in the presence of interfering ions, viz. CO₃²⁻ and SO₄²⁻, which was further validated by exceptional distribution coefficient values Kd > 10⁶ mL g⁻¹. The maximum uptake capacity stands among the best performing materials reported in the domain of ionic MOFs (iMOFs). Furthermore, iMOF-3C successfully performs in complicated systems such as river water to yield drinking quality water as per the WHO and US EPA standards. The exceptional binding ability was corroborated by DFT calculations (high binding energies) that also aid in visualizing the binding sites for the entrapped oxo-anions.
    Keywords United States Environmental Protection Agency ; arsenic ; coordination polymers ; river water ; selenium ; sorbents ; toxicity
    Language English
    Dates of publication 2021-0316
    Size p. 6499-6507.
    Publishing place The Royal Society of Chemistry
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2702232-8
    ISSN 2050-7496 ; 2050-7488
    ISSN (online) 2050-7496
    ISSN 2050-7488
    DOI 10.1039/d0ta04898d
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: MicroRNA miR-29c regulates RAG1 expression and modulates V(D)J recombination during B cell development

    Rupa Kumari / Urbi Roy / Sagar Desai / Namrata M. Nilavar / Annemarie Van Nieuwenhuijze / Amita Paranjape / Gudapureddy Radha / Pushpinder Bawa / Mrinal Srivastava / Mridula Nambiar / Kithiganahalli Narayanaswamy Balaji / Adrian Liston / Bibha Choudhary / Sathees C. Raghavan

    Cell Reports, Vol 36, Iss 2, Pp 109390- (2021)

    2021  

    Abstract: ... regulated lymphoid-specific genes, which initiate V(D)J recombination in developing lymphocytes. We report ... and direct interaction of miR-29c to RAG1. Modulation of miR-29c levels leads to change in V(D)J ...

    Abstract Summary: Recombination activating genes (RAGs), consisting of RAG1 and RAG2, are stringently regulated lymphoid-specific genes, which initiate V(D)J recombination in developing lymphocytes. We report the regulation of RAG1 through a microRNA (miRNA), miR-29c, in a B cell stage-specific manner in mice and humans. Various lines of experimentation, including CRISPR-Cas9 genome editing, demonstrate the target specificity and direct interaction of miR-29c to RAG1. Modulation of miR-29c levels leads to change in V(D)J recombination efficiency in pre-B cells. The miR-29c expression is inversely proportional to RAG1 in a B cell developmental stage-specific manner, and miR-29c null mice exhibit a reduction in mature B cells. A negative correlation of miR-29c and RAG1 levels is also observed in leukemia patients, suggesting the potential use of miR-29c as a biomarker and a therapeutic target. Thus, our results reveal the role of miRNA in the regulation of RAG1 and its relevance in cancer.
    Keywords miRNA ; RAG complex ; immunoglobulin diversity ; lymphoid system ; B cell development ; epigenetic regulation ; Biology (General) ; QH301-705.5
    Subject code 570
    Language English
    Publishing date 2021-07-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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