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  1. Article: High Frequencies of Antiviral Effector Memory T

    Dhanushkodi, Nisha Rajeswari / Prakash, Swayam / Quadiri, Afshana / Zayou, Latifa / Singer, Mahmoud / Takashi, Nakayama / Vahed, Hawa / BenMohamed, Lbachir

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Vaginal mucosa-resident anti-viral effector memory B- and T cells appeared to play a crucial role in protection against genital herpes. However, how to mobilize such protective immune cells into the vaginal tissue close to infected epithelial cells ... ...

    Abstract Vaginal mucosa-resident anti-viral effector memory B- and T cells appeared to play a crucial role in protection against genital herpes. However, how to mobilize such protective immune cells into the vaginal tissue close to infected epithelial cells remains to be determined. In the present study, we investigate whether and how, CCL28, a major mucosal-associated chemokine, mobilizes effector memory B- and T cells in leading to protecting mucosal surfaces from herpes infection and disease. The CCL28 is a chemoattractant for the CCR10 receptor-expressing immune cells and is produced homeostatically in the human vaginal mucosa (VM). We found the presence of significant frequencies of HSV-specific memory CCR10
    Language English
    Publishing date 2023-05-24
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.05.23.542021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Therapeutic prime/pull vaccination of HSV-2-infected guinea pigs with the ribonucleotide reductase 2 (RR2) protein and CXCL11 chemokine boosts antiviral local tissue-resident and effector memory CD4

    Quadiri, Afshana / Prakash, Swayam / Dhanushkodi, Nisha Rajeswari / Singer, Mahmoud / Zayou, Latifa / Shaik, Amin Mohammed / Sun, Miyo / Suzer, Berfin / Lau, Lauren Su Lin / Chilukurri, Amruth / Vahed, Hawa / Schaefer, Hubert / BenMohamed, Lbachir

    Journal of virology

    2024  , Page(s) e0159623

    Abstract: Following acute herpes simplex virus type 2 (HSV-2) infection, the virus undergoes an asymptomatic latent infection of sensory neurons of dorsal root ganglia (DRG). Chemical and physical stress cause intermittent virus reactivation from latently infected ...

    Abstract Following acute herpes simplex virus type 2 (HSV-2) infection, the virus undergoes an asymptomatic latent infection of sensory neurons of dorsal root ganglia (DRG). Chemical and physical stress cause intermittent virus reactivation from latently infected DRG and recurrent virus shedding in the genital mucosal epithelium causing genital herpes in symptomatic patients. While T cells appear to play a role in controlling virus reactivation from DRG and reducing the severity of recurrent genital herpes, the mechanisms for recruiting these T cells into DRG and the vaginal mucosa (VM) remain to be fully elucidated. The present study investigates the effect of CXCL9, CXCL10, and CXCL11 T-cell-attracting chemokines on the frequency and function of DRG- and VM-resident CD4
    Language English
    Publishing date 2024-04-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80174-4
    ISSN 1098-5514 ; 0022-538X
    ISSN (online) 1098-5514
    ISSN 0022-538X
    DOI 10.1128/jvi.01596-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: High Frequencies of Phenotypically and Functionally Senescent and Exhausted CD56

    Srivastava, Ruchi / Dhanushkodi, Nisha / Prakash, Swayam / Coulon, Pierre Gregoire / Vahed, Hawa / Zayou, Latifa / Quadiri, Afshana / BenMohamed, Lbachir

    bioRxiv : the preprint server for biology

    2022  

    Abstract: Unvaccinated COVID-19 patients display a large spectrum of symptoms, ranging from asymptomatic to severe symptoms, the latter even causing death. Distinct Natural killer (NK) and ... ...

    Abstract Unvaccinated COVID-19 patients display a large spectrum of symptoms, ranging from asymptomatic to severe symptoms, the latter even causing death. Distinct Natural killer (NK) and CD4
    Language English
    Publishing date 2022-07-27
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2022.07.26.501655
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: HDAC4 Mediates Smoking-Induced Pancreatic Cancer Metastasis.

    Yang, Jiyong / Chheda, Chintan / Lim, Adrian / Hauptschein, Dina / Zayou, Latifa / Tang, Josiah / Pandol, Stephen J / Edderkaoui, Mouad

    Pancreas

    2022  Volume 51, Issue 2, Page(s) 190–195

    Abstract: Objective: Cigarette smoking is an established risk factor for pancreatic ductal adenocarcinoma (PDAC). In this project, we investigated the effect of smoking and the role of histone deacetylase 4 (HDAC4) in PDAC invasion and metastasis.: Methods: ... ...

    Abstract Objective: Cigarette smoking is an established risk factor for pancreatic ductal adenocarcinoma (PDAC). In this project, we investigated the effect of smoking and the role of histone deacetylase 4 (HDAC4) in PDAC invasion and metastasis.
    Methods: Cells were treated with 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone and cigarette smoke extract and the mRNA levels of HDACs were measured by real-time polymerase chain reaction. Invasion was measured using the Matrigel Invasion Assay. Syngeneic PDAC mice were treated with 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone and metastasis measured. Human PDAC primary and metastatic tissues were analyzed by immunohistochemistry.
    Results: Levels of HDAC4 mRNA were increased by smoking. Smoking compounds significantly promoted invasion of cancer cells and promoted metastasis of PDAC cells to different organs, including the liver and the lung, whereas inhibition of HDAC4 prevented this effect. The effect of HDAC4 inhibition on preventing smoking-induced metastasis was greater in the liver compared with the lung. We found that HDAC4 is highly expressed in primary and metastatic PDAC tumors.
    Conclusions: We found that HDAC4 is the only HDAC induced by smoking among all HDACs analyzed. We found that smoking promotes invasion and metastasis of PDAC cells through a mechanism that involves HDAC4 and that HDAC4 is a promising target for preventing PDAC metastasis.
    MeSH term(s) Animals ; Carcinoma, Pancreatic Ductal/pathology ; Cell Line, Tumor ; Gene Expression Regulation, Neoplastic ; Histone Deacetylases/genetics ; Humans ; Mice ; Neoplasm Metastasis ; Pancreatic Neoplasms/genetics ; Pancreatic Neoplasms/pathology ; RNA, Messenger ; Repressor Proteins/genetics ; Smoking/adverse effects ; Pancreatic Neoplasms
    Chemical Substances RNA, Messenger ; Repressor Proteins ; HDAC4 protein, human (EC 3.5.1.98) ; Histone Deacetylases (EC 3.5.1.98)
    Language English
    Publishing date 2022-04-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 632831-3
    ISSN 1536-4828 ; 0885-3177
    ISSN (online) 1536-4828
    ISSN 0885-3177
    DOI 10.1097/MPA.0000000000001998
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Antiviral and Anti-Inflammatory Therapeutic Effect of RAGE-Ig Protein against Multiple SARS-CoV-2 Variants of Concern Demonstrated in K18-hACE2 Mouse and Syrian Golden Hamster Models.

    Dhanushkodi, Nisha Rajeswari / Prakash, Swayam / Quadiri, Afshana / Zayou, Latifa / Srivastava, Ruchi / Shaik, Amin Mohammed / Suzer, Berfin / Ibraim, Izabela Coimbra / Landucci, Gary / Tifrea, Delia F / Singer, Mahmoud / Jamal, Leila / Edwards, Robert A / Vahed, Hawa / Brown, Lawrence / BenMohamed, Lbachir

    Journal of immunology (Baltimore, Md. : 1950)

    2024  Volume 212, Issue 4, Page(s) 576–585

    Abstract: SARS-CoV-2 variants of concern (VOCs) continue to evolve and reemerge with chronic inflammatory long COVID sequelae, necessitating the development of anti-inflammatory therapeutic molecules. Therapeutic effects of the receptor for advanced glycation end ... ...

    Abstract SARS-CoV-2 variants of concern (VOCs) continue to evolve and reemerge with chronic inflammatory long COVID sequelae, necessitating the development of anti-inflammatory therapeutic molecules. Therapeutic effects of the receptor for advanced glycation end products (RAGE) were reported in many inflammatory diseases. However, a therapeutic effect of RAGE in COVID-19 has not been reported. In the present study, we investigated whether and how the RAGE-Ig fusion protein would have an antiviral and anti-inflammatory therapeutic effect in the COVID-19 system. The protective therapeutic effect of RAGE-Ig was determined in vivo in K18-hACE2 transgenic mice and Syrian golden hamsters infected with six VOCs of SARS-CoV-2. The underlying antiviral mechanism of RAGE-Ig was determined in vitro in SARS-CoV-2-infected human lung epithelial cells (BEAS-2B). Following treatment of K18-hACE2 mice and hamsters infected with various SARS-CoV-2 VOCs with RAGE-Ig, we demonstrated (1) significant dose-dependent protection (i.e., greater survival, less weight loss, lower virus replication in the lungs); (2) a reduction of inflammatory macrophages (F4/80+/Ly6C+) and neutrophils (CD11b+/Ly6G+) infiltrating the infected lungs; (3) a RAGE-Ig dose-dependent increase in the expression of type I IFNs (IFN-α and IFN-β) and type III IFN (IFNλ2) and a decrease in the inflammatory cytokines (IL-6 and IL-8) in SARS-CoV-2-infected human lung epithelial cells; and (4) a dose-dependent decrease in the expression of CD64 (FcgR1) on monocytes and lung epithelial cells from symptomatic COVID-19 patients. Our preclinical findings revealed type I and III IFN-mediated antiviral and anti-inflammatory therapeutic effects of RAGE-Ig protein against COVID-19 caused by multiple SARS-CoV-2 VOCs.
    MeSH term(s) Cricetinae ; Humans ; Mice ; Animals ; SARS-CoV-2 ; Mesocricetus ; COVID-19 ; Receptor for Advanced Glycation End Products/genetics ; Post-Acute COVID-19 Syndrome ; Mice, Transgenic ; Antiviral Agents/pharmacology ; Antiviral Agents/therapeutic use ; Disease Models, Animal ; Lung ; gamma-Globulins ; Melphalan
    Chemical Substances Receptor for Advanced Glycation End Products ; K-18 conjugate ; Antiviral Agents ; gamma-Globulins ; Melphalan (Q41OR9510P)
    Language English
    Publishing date 2024-01-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3056-9
    ISSN 1550-6606 ; 0022-1767 ; 1048-3233 ; 1047-7381
    ISSN (online) 1550-6606
    ISSN 0022-1767 ; 1048-3233 ; 1047-7381
    DOI 10.4049/jimmunol.2300392
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Therapeutic Prime/Pull Vaccination of HSV-2 Infected Guinea Pigs with the Ribonucleotide Reductase 2 (RR2) Protein and CXCL11 Chemokine Boosts Antiviral Local Tissue-Resident and Effector Memory CD4

    Quadiri, Afshana / Prakash, Swayam / Dhanushkodi, Nisha Rajeswari / Singer, Mahmoud / Zayou, Latifa / Shaik, Amin Mohammed / Sun, Miyo / Suzer, Berfin / Lau, Lauren / Chilukurri, Amruth / Vahed, Hawa / Schaefer, Hubert / BenMohamed, Lbachir

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Following acute herpes simplex virus type 2 (HSV-2) infection, the virus undergoes latency in sensory neurons of the dorsal root ganglia (DRG). Intermittent virus reactivation from latency and shedding in the vaginal mucosa (VM) causes recurrent genital ... ...

    Abstract Following acute herpes simplex virus type 2 (HSV-2) infection, the virus undergoes latency in sensory neurons of the dorsal root ganglia (DRG). Intermittent virus reactivation from latency and shedding in the vaginal mucosa (VM) causes recurrent genital herpes. While T-cells appear to play a role in controlling virus reactivation and reducing the severity of recurrent genital herpes, the mechanisms for recruiting these T-cells into DRG and VM tissues remain to be fully elucidated. The present study investigates the effect of CXCL9, CXCL10, and CXCL11 T-cell-attracting chemokines on the frequency and function of DRG- and VM-resident CD4
    Language English
    Publishing date 2023-08-09
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.08.08.552454
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A Broad-Spectrum Multi-Antigen mRNA/LNP-Based Pan-Coronavirus Vaccine Induced Potent Cross-Protective Immunity Against Infection and Disease Caused by Highly Pathogenic and Heavily Spike-Mutated SARS-CoV-2 Variants of Concern in the Syrian Hamster Model

    Prakash, Swayam / Dhanushkodi, Nisha R / Singer, Mahmoud / Quadiri, Afshana / Zayou, Latifa / Vahed, Hawa / Coulon, Pierre-Gregoire / El Babsiri, Assia / Gil, Daniel / Ulmer, Jeffrey B / BENMOHAMED, LBACHIR

    bioRxiv

    Abstract: The first-generation Spike-alone-based COVID-19 vaccines have successfully contributed to reducing the risk of hospitalization, serious illness, and death caused by SARS-CoV-2 infections. However, waning immunity induced by these vaccines failed to ... ...

    Abstract The first-generation Spike-alone-based COVID-19 vaccines have successfully contributed to reducing the risk of hospitalization, serious illness, and death caused by SARS-CoV-2 infections. However, waning immunity induced by these vaccines failed to prevent immune escape by many variants of concern (VOCs) that emerged from 2020 to 2024, resulting in a prolonged COVID-19 pandemic. We hypothesize that a next-generation Coronavirus (CoV) vaccine incorporating highly conserved non-Spike SARS-CoV-2 antigens would confer stronger and broader cross-protective immunity against multiple VOCs. In the present study, we identified ten non-Spike antigens that are highly conserved in 8.7 million SARS-CoV-2 strains, twenty-one VOCs, SARS-CoV, MERS-CoV, Common Cold CoVs, and animal CoVs. Seven of the 10 antigens were preferentially recognized by CD8+ and CD4+ T-cells from unvaccinated asymptomatic COVID-19 patients, irrespective of VOC infection. Three out of the seven conserved non-Spike T cell antigens belong to the early expressed Replication and Transcription Complex (RTC) region, when administered to the golden Syrian hamsters, in combination with Spike, as nucleoside-modified mRNA encapsulated in lipid nanoparticles (LNP) (i.e., combined mRNA/LNP-based pan-CoV vaccine): (i) Induced high frequencies of lung-resident antigen-specific CXCR5+CD4+ T follicular helper (TFH) cells, GzmB+CD4+ and GzmB+CD8+ cytotoxic T cells (TCYT), and CD69+IFN-g+TNF-a+CD4+ and CD69+IFN-g+TNFa+CD8+ effector T cells (TEFF); and (ii) Reduced viral load and COVID-19-like symptoms caused by various VOCs, including the highly pathogenic B.1.617.2 Delta variant and the highly transmittable heavily Spike-mutated XBB1.5 Omicron sub-variant. The combined mRNA/LNP-based pan-CoV vaccine could be rapidly adapted for clinical use to confer broader cross-protective immunity against emerging highly mutated and pathogenic VOCs.
    Keywords covid19
    Language English
    Publishing date 2024-02-15
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2024.02.14.580225
    Database COVID19

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  8. Article: A Broad-Spectrum Multi-Antigen mRNA/LNP-Based Pan-Coronavirus Vaccine Induced Potent Cross-Protective Immunity Against Infection and Disease Caused by Highly Pathogenic and Heavily Spike-Mutated SARS-CoV-2 Variants of Concern in the Syrian Hamster Model.

    Prakash, Swayam / Dhanushkodi, Nisha R / Singer, Mahmoud / Quadiri, Afshana / Zayou, Latifa / Vahed, Hawa / Coulon, Pierre-Gregoire / Ibraim, Izabela Coimbra / Tafoya, Christine / Hitchcock, Lauren / Landucci, Gary / Forthal, Donald N / El Babsiri, Assia / Tifrea, Delia F / Figueroa, Cesar J / Nesburn, Anthony B / Kuppermann, Baruch D / Gil, Daniel / Jones, Trevor M /
    Ulmer, Jeffrey B / BenMohamed, Lbachir

    bioRxiv : the preprint server for biology

    2024  

    Abstract: The first-generation Spike-alone-based COVID-19 vaccines have successfully contributed to reducing the risk of hospitalization, serious illness, and death caused by SARS-CoV-2 infections. However, waning immunity induced by these vaccines failed to ... ...

    Abstract The first-generation Spike-alone-based COVID-19 vaccines have successfully contributed to reducing the risk of hospitalization, serious illness, and death caused by SARS-CoV-2 infections. However, waning immunity induced by these vaccines failed to prevent immune escape by many variants of concern (VOCs) that emerged from 2020 to 2024, resulting in a prolonged COVID-19 pandemic. We hypothesize that a next-generation Coronavirus (CoV) vaccine incorporating highly conserved non-Spike SARS-CoV-2 antigens would confer stronger and broader cross-protective immunity against multiple VOCs. In the present study, we identified ten non-Spike antigens that are highly conserved in 8.7 million SARS-CoV-2 strains, twenty-one VOCs, SARS-CoV, MERS-CoV, Common Cold CoVs, and animal CoVs. Seven of the 10 antigens were preferentially recognized by CD8
    Language English
    Publishing date 2024-02-15
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.02.14.580225
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Cross-protection induced by highly conserved human B, CD4

    Prakash, Swayam / Dhanushkodi, Nisha R / Zayou, Latifa / Ibraim, Izabela Coimbra / Quadiri, Afshana / Coulon, Pierre Gregoire / Tifrea, Delia F / Suzer, Berfin / Shaik, Amin Mohammed / Chilukuri, Amruth / Edwards, Robert A / Singer, Mahmoud / Vahed, Hawa / Nesburn, Anthony B / Kuppermann, Baruch D / Ulmer, Jeffrey B / Gil, Daniel / Jones, Trevor M / BenMohamed, Lbachir

    Frontiers in immunology

    2024  Volume 15, Page(s) 1328905

    Abstract: Background: The coronavirus disease 2019 (COVID-19) pandemic has created one of the largest global health crises in almost a century. Although the current rate of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections has decreased ... ...

    Abstract Background: The coronavirus disease 2019 (COVID-19) pandemic has created one of the largest global health crises in almost a century. Although the current rate of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections has decreased significantly, the long-term outlook of COVID-19 remains a serious cause of morbidity and mortality worldwide, with the mortality rate still substantially surpassing even that recorded for influenza viruses. The continued emergence of SARS-CoV-2 variants of concern (VOCs), including multiple heavily mutated Omicron sub-variants, has prolonged the COVID-19 pandemic and underscores the urgent need for a next-generation vaccine that will protect from multiple SARS-CoV-2 VOCs.
    Methods: We designed a multi-epitope-based coronavirus vaccine that incorporated B, CD4
    Results: The pan-variant SARS-CoV-2 vaccine (i) is safe , (ii) induces high frequencies of lung-resident functional CD8
    Conclusion: A multi-epitope pan-variant SARS-CoV-2 vaccine bearing conserved human B- and T- cell epitopes from structural and non-structural SARS-CoV-2 antigens induced cross-protective immunity that facilitated virus clearance, and reduced morbidity, COVID-19-related lung pathology, and death caused by multiple SARS-CoV-2 VOCs.
    MeSH term(s) Animals ; Humans ; Mice ; CD4-Positive T-Lymphocytes ; CD8-Positive T-Lymphocytes ; COVID-19/prevention & control ; COVID-19 Vaccines/immunology ; Epitopes, T-Lymphocyte/genetics ; Pandemics ; SARS-CoV-2/genetics ; Cross Protection
    Chemical Substances COVID-19 Vaccines ; Epitopes, T-Lymphocyte
    Language English
    Publishing date 2024-01-22
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2024.1328905
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: High frequencies of alpha common cold coronavirus/SARS-CoV-2 cross-reactive functional CD4

    Coulon, Pierre-Gregoire / Prakash, Swayam / Dhanushkodi, Nisha R / Srivastava, Ruchi / Zayou, Latifa / Tifrea, Delia F / Edwards, Robert A / Figueroa, Cesar J / Schubl, Sebastian D / Hsieh, Lanny / Nesburn, Anthony B / Kuppermann, Baruch D / Bahraoui, Elmostafa / Vahed, Hawa / Gil, Daniel / Jones, Trevor M / Ulmer, Jeffrey B / BenMohamed, Lbachir

    Frontiers in immunology

    2024  Volume 15, Page(s) 1343716

    Abstract: Background: Cross-reactive SARS-CoV-2-specific memory CD4: Methods: This study compares the antigen specificity, frequency, phenotype, and function of cross-reactive memory CD4: Results: Compared to severely ill COVID-19 patients and patients with ...

    Abstract Background: Cross-reactive SARS-CoV-2-specific memory CD4
    Methods: This study compares the antigen specificity, frequency, phenotype, and function of cross-reactive memory CD4
    Results: Compared to severely ill COVID-19 patients and patients with fatal COVID-19 outcomes, the asymptomatic COVID-19 patients displayed significantly: (i) higher rates of co-infection with the 229E alpha species of CCCs (α-CCC-229E); (ii) higher frequencies of cross-reactive functional CD134
    Conclusions: These findings (i) support a crucial role of functional, poly-antigenic α-CCCs/SARS-CoV-2 cross-reactive memory CD4
    MeSH term(s) Humans ; COVID-19 ; SARS-CoV-2 ; CTLA-4 Antigen ; CD8-Positive T-Lymphocytes ; Common Cold ; Memory T Cells ; Hepatitis A Virus Cellular Receptor 2 ; Programmed Cell Death 1 Receptor ; CD4-Positive T-Lymphocytes ; Epitopes
    Chemical Substances CTLA-4 Antigen ; Hepatitis A Virus Cellular Receptor 2 ; Programmed Cell Death 1 Receptor ; Epitopes
    Language English
    Publishing date 2024-03-28
    Publishing country Switzerland
    Document type Journal Article ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2024.1343716
    Database MEDical Literature Analysis and Retrieval System OnLINE

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