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  1. Article ; Online: ABPA and AFRS: addressing prevalence, early diagnosis, allergens, and occupational concerns.

    Minhas, Anu Priya / Das, Santasabuj

    The Journal of asthma : official journal of the Association for the Care of Asthma

    2024  , Page(s) 1–13

    Abstract: Objective: This study aimed to comprehensively investigate the prevalence of ABPA and AFRS, scrutinize existing diagnostic criteria and immunoassays, pinpoint their limitations, highlight ABPA as an occupational health implication, and identify ... ...

    Abstract Objective: This study aimed to comprehensively investigate the prevalence of ABPA and AFRS, scrutinize existing diagnostic criteria and immunoassays, pinpoint their limitations, highlight ABPA as an occupational health implication, and identify suggestive measures to improve ABPA diagnosis in the context of Occupational Health Nursing and primary healthcare.
    Data sources: The data sources such as PubMed, Health and Safety Science Abstracts, OSH Update, Medline, and Google Scholar were searched.
    Study selections: All published studies in the English language from 1990 till Oct, 2023 using Mesh terms keywords "Allergic bronchopulmonary aspergillosis," "Allergic fungal rhinosinusitis," "Signs and Symptoms," "Rapid Diagnostic Tests," "Diagnosis," "Occupational Health," "Occupational Health Nursing," "Prevalence," "Allergens" following "Boolean operators" search strategy were selected.
    Results: This review succinctly covered signs, symptoms, and prevalence data concerning ABPA and AFRS. It briefly discussed existing diagnostic criteria and immunoassays, highlighted factors influencing the assay's variability, and underscored the role and scope of specific allergens toward improved, simple, and early ABPA diagnosis. ABPA as a neglected occupational health concern was emphasized, and the importance of RDTs in the context of healthcare professionals and OHNs was stated. Finally, this study suggested analyzing the impact of compromised post-pandemic immune status and the use of immunosuppressive drugs on ABPA prevalence among vulnerable communities and occupations.
    Conclusion: To conclude, global and Indian ABPA and AFRS prevalence data, factors influencing existing assay variability, and the scope of improvement in RDTs for ABPA diagnosis in the background of primary healthcare professionals and OHNs were addressed.
    Language English
    Publishing date 2024-01-12
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 603816-5
    ISSN 1532-4303 ; 0277-0903
    ISSN (online) 1532-4303
    ISSN 0277-0903
    DOI 10.1080/02770903.2024.2303766
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: ABDpred: Prediction of active antimicrobial compounds using supervised machine learning techniques.

    Jana, Tanmoy / Sarkar, Debasree / Ganguli, Debayan / Mukherjee, Sandip Kumar / Mandal, Rahul Shubhra / Das, Santasabuj

    The Indian journal of medical research

    2024  Volume 159, Issue 1, Page(s) 78–90

    Abstract: Background objectives: Discovery of new antibiotics is the need of the hour to treat infectious diseases. An ever-increasing repertoire of multidrug-resistant pathogens poses an imminent threat to human lives across the globe. However, the low success ... ...

    Abstract Background objectives: Discovery of new antibiotics is the need of the hour to treat infectious diseases. An ever-increasing repertoire of multidrug-resistant pathogens poses an imminent threat to human lives across the globe. However, the low success rate of the existing approaches and technologies for antibiotic discovery remains a major bottleneck. In silico methods like machine learning (ML) deem more promising to meet the above challenges compared with the conventional experimental approaches. The goal of this study was to create ML models that may be used to successfully predict new antimicrobial compounds.
    Methods: In this article, we employed eight different ML algorithms namely, extreme gradient boosting, random forest, gradient boosting classifier, deep neural network, support vector machine, multilayer perceptron, decision tree, and logistic regression. These models were trained using a dataset comprising 312 antibiotic drugs and a negative set of 936 non-antibiotic drugs in a five-fold cross validation approach.
    Results: The top four ML classifiers (extreme gradient boosting, random forest, gradient boosting classifier and deep neural network) were able to achieve an accuracy of 80 per cent and above during the evaluation of testing and blind datasets.
    Interpretation conclusions: We aggregated the top performing four models through a soft-voting technique to develop an ensemble-based ML method and incorporated it into a freely accessible online prediction server named ABDpred ( http://clinicalmedicinessd.com.in/abdpred/ ).
    MeSH term(s) Humans ; Algorithms ; Machine Learning ; Anti-Infective Agents ; Supervised Machine Learning ; Anti-Bacterial Agents/therapeutic use
    Chemical Substances Anti-Infective Agents ; Anti-Bacterial Agents
    Language English
    Publishing date 2024-03-04
    Publishing country India
    Document type Journal Article
    ZDB-ID 390883-5
    ISSN 0971-5916 ; 0019-5340
    ISSN 0971-5916 ; 0019-5340
    DOI 10.4103/ijmr.ijmr_1832_22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A network biology approach to identify crucial host targets for COVID-19.

    Barman, Ranjan Kumar / Mukhopadhyay, Anirban / Maulik, Ujjwal / Das, Santasabuj

    Methods (San Diego, Calif.)

    2022  Volume 203, Page(s) 108–115

    Abstract: The ongoing global pandemic of COVID-19, caused by SARS-CoV-2 has killed more than 5.9 million individuals out of ∼43 million confirmed infections. At present, several parts of the world are encountering the 3rd wave. Mass vaccination has been started in ...

    Abstract The ongoing global pandemic of COVID-19, caused by SARS-CoV-2 has killed more than 5.9 million individuals out of ∼43 million confirmed infections. At present, several parts of the world are encountering the 3rd wave. Mass vaccination has been started in several countries but they are less likely to be broadly available for the current pandemic, repurposing of the existing drugs has drawn highest attention for an immediate solution. A recent publication has mapped the physical interactions of SARS-CoV-2 and human proteins by affinity-purification mass spectrometry (AP-MS) and identified 332 high-confidence SARS-CoV-2-human protein-protein interactions (PPIs). Here, we taken a network biology approach and constructed a human protein-protein interaction network (PPIN) with the above SARS-CoV-2 targeted proteins. We utilized a combination of essential network centrality measures and functional properties of the human proteins to identify the critical human targets of SARS-CoV-2. Four human proteins, namely PRKACA, RHOA, CDK5RAP2, and CEP250 have emerged as the best therapeutic targets, of which PRKACA and CEP250 were also found by another group as potential candidates for drug targets in COVID-19. We further found candidate drugs/compounds, such as guanosine triphosphate, remdesivir, adenosine monophosphate, MgATP, and H-89 dihydrochloride that bind the target human proteins. The urgency to prevent the spread of infection and the death of diseased individuals has prompted the search for agents from the pool of approved drugs to repurpose them for COVID-19. Our results indicate that host targeting therapy with the repurposed drugs may be a useful strategy for the treatment of SARS-CoV-2 infection.
    MeSH term(s) Antiviral Agents/pharmacology ; Antiviral Agents/therapeutic use ; Autoantigens ; Cell Cycle Proteins ; Drug Repositioning ; Humans ; Nerve Tissue Proteins ; Pandemics ; SARS-CoV-2 ; COVID-19 Drug Treatment
    Chemical Substances Antiviral Agents ; Autoantigens ; CDK5RAP2 protein, human ; Cell Cycle Proteins ; CEP250 protein, human ; Nerve Tissue Proteins
    Language English
    Publishing date 2022-03-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1066584-5
    ISSN 1095-9130 ; 1046-2023
    ISSN (online) 1095-9130
    ISSN 1046-2023
    DOI 10.1016/j.ymeth.2022.03.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Intranasal immunization of mice with chimera of Salmonella Typhi protein elicits protective intestinal immunity.

    Chakraborty, Suparna / Dutta, Pujarini / Pal, Ananda / Chakraborty, Swarnali / Banik, George / Halder, Prolay / Gope, Animesh / Miyoshi, Shin-Ichi / Das, Santasabuj

    NPJ vaccines

    2024  Volume 9, Issue 1, Page(s) 24

    Abstract: Development of safe, highly effective and affordable enteric fever vaccines is a global health priority. Live, oral typhoid vaccines induce strong mucosal immunity and long-term protection, but safety remains a concern. In contrast, efficacy wears off ... ...

    Abstract Development of safe, highly effective and affordable enteric fever vaccines is a global health priority. Live, oral typhoid vaccines induce strong mucosal immunity and long-term protection, but safety remains a concern. In contrast, efficacy wears off rapidly for injectable, polysaccharide-based vaccines, which elicit poor mucosal response. We previously reported Salmonella Typhi outer membrane protein, T2544 as a potential candidate for bivalent (S. Typhi and S. Paratyphi A) vaccine development. Here, we show that intranasal immunization with a subunit vaccine (chimera of T2544 and cholera toxin B subunit) induced strong systemic and intestinal mucosal immunity and protection from S. Typhi challenge in a mouse model. CTB-T2544 augmented gut-homing receptor expression on lymphocytes that produced Th1 and Th17 cytokines, secretory IgA in stool that inhibited bacterial motility and epithelial attachment, antibody recall response and affinity maturation with increased number of follicular helper T cells and CD4+ central and effector memory cells.
    Language English
    Publishing date 2024-02-06
    Publishing country England
    Document type Journal Article
    ISSN 2059-0105
    ISSN (online) 2059-0105
    DOI 10.1038/s41541-024-00812-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A candidate glycoconjugate vaccine induces protective antibodies in the serum and intestinal secretions, antibody recall response and memory T cells and protects against both typhoidal and non-typhoidal

    Haldar, Risha / Dhar, Amlanjyoti / Ganguli, Debayan / Chakraborty, Suparna / Pal, Ananda / Banik, George / Miyoshi, Shin-Ichi / Das, Santasabuj

    Frontiers in immunology

    2024  Volume 14, Page(s) 1304170

    Abstract: ... ...

    Abstract Human
    MeSH term(s) Child ; Humans ; Animals ; Mice ; Typhoid-Paratyphoid Vaccines ; Memory T Cells ; Intestinal Secretions ; Serogroup ; Typhoid Fever ; Salmonella enteritidis ; Vaccines, Subunit ; Immunoglobulin A, Secretory ; Immunoglobulin G
    Chemical Substances Typhoid-Paratyphoid Vaccines ; Vaccines, Subunit ; Immunoglobulin A, Secretory ; Immunoglobulin G
    Language English
    Publishing date 2024-01-09
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1304170
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: A network biology approach to identify crucial host targets for COVID-19

    Barman, Ranjan Kumar / Mukhopadhyay, Anirban / Maulik, Ujjwal / Das, Santasabuj

    Methods. 2022 Mar. 27,

    2022  

    Abstract: The ongoing global pandemic of COVID-19, caused by SARS-CoV-2 has killed more than 5.9 million individuals out of ∼43 million confirmed infections. At present, several parts of the world are encountering the 3rd wave. Mass vaccination has been started in ...

    Abstract The ongoing global pandemic of COVID-19, caused by SARS-CoV-2 has killed more than 5.9 million individuals out of ∼43 million confirmed infections. At present, several parts of the world are encountering the 3rd wave. Mass vaccination has been started in several countries but they are less likely to be broadly available for the current pandemic, repurposing of the existing drugs has drawn highest attention for an immediate solution. A recent publication has mapped the physical interactions of SARS-CoV-2 and human proteins by affinity-purification mass spectrometry (AP-MS) and identified 332 high-confidence SARS-CoV-2-human protein-protein interactions (PPIs). Here, we taken a network biology approach and constructed a human protein-protein interaction network (PPIN) with the above SARS-CoV-2 targeted proteins. We utilized a combination of essential network centrality measures and functional properties of the human proteins to identify the critical human targets of SARS-CoV-2. Four human proteins, namely PRKACA, RHOA, CDK5RAP2, and CEP250 have emerged as the best therapeutic targets, of which PRKACA and CEP250 were also found by another group as potential candidates for drug targets in COVID-19. We further found candidate drugs/compounds, such as guanosine triphosphate, remdesivir, adenosine monophosphate, MgATP, and H-89 dihydrochloride that bind the target human proteins. The urgency to prevent the spread of infection and the death of diseased individuals has prompted the search for agents from the pool of approved drugs to repurpose them for COVID-19. Our results indicate that host targeting therapy with the repurposed drugs may be a useful strategy for the treatment of SARS-CoV-2 infection.
    Keywords COVID-19 infection ; Severe acute respiratory syndrome coronavirus 2 ; adenosine monophosphate ; death ; drugs ; guanosine triphosphate ; humans ; mass spectrometry ; pandemic ; protein-protein interactions ; vaccination
    Language English
    Dates of publication 2022-0327
    Publishing place Elsevier Inc.
    Document type Article
    Note Pre-press version
    ZDB-ID 1066584-5
    ISSN 1095-9130 ; 1046-2023
    ISSN (online) 1095-9130
    ISSN 1046-2023
    DOI 10.1016/j.ymeth.2022.03.016
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: A comparative study of sequence- and structure-based features of small RNAs and other RNAs of bacteria

    Barik, Amita / Das, Santasabuj

    RNA biology. 2018 Jan. 2, v. 15, no. 1

    2018  

    Abstract: Small RNAs (sRNAs) in bacteria have emerged as key players in transcriptional and post-transcriptional regulation of gene expression. Here, we present a statistical analysis of different sequence- and structure-related features of bacterial sRNAs to ... ...

    Abstract Small RNAs (sRNAs) in bacteria have emerged as key players in transcriptional and post-transcriptional regulation of gene expression. Here, we present a statistical analysis of different sequence- and structure-related features of bacterial sRNAs to identify the descriptors that could discriminate sRNAs from other bacterial RNAs. We investigated a comprehensive and heterogeneous collection of 816 sRNAs, identified by northern blotting across 33 bacterial species and compared their various features with other classes of bacterial RNAs, such as tRNAs, rRNAs and mRNAs. We observed that sRNAs differed significantly from the rest with respect to G+C composition, normalized minimum free energy of folding, motif frequency and several RNA-folding parameters like base-pairing propensity, Shannon entropy and base-pair distance. Based on the selected features, we developed a predictive model using Random Forests (RF) method to classify the above four classes of RNAs. Our model displayed an overall predictive accuracy of 89.5%. These findings would help to differentiate bacterial sRNAs from other RNAs and further promote prediction of novel sRNAs in different bacterial species.
    Keywords Gibbs free energy ; RNA folding ; comparative study ; entropy ; gene expression regulation ; models ; prediction ; statistical analysis ; transcription (genetics)
    Language English
    Dates of publication 2018-0102
    Size p. 95-103.
    Publishing place Taylor & Francis
    Document type Article
    ISSN 1555-8584
    DOI 10.1080/15476286.2017.1387709
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Macrophage Cell Lines and Murine Infection by Salmonella enterica Serovar Typhi L-Form Bacteria.

    Ganguli, Debayan / Chakraborty, Swarnali / Chakraborty, Suparna / Pal, Ananda / Gope, Animesh / Das, Santasabuj

    Infection and immunity

    2022  Volume 90, Issue 6, Page(s) e0011922

    Abstract: Antibiotic resistance of pathogenic bacteria has emerged as a major threat to public health worldwide. While stable resistance due to the acquisition of genomic mutations or plasmids carrying antibiotic resistance genes is well established, much less is ... ...

    Abstract Antibiotic resistance of pathogenic bacteria has emerged as a major threat to public health worldwide. While stable resistance due to the acquisition of genomic mutations or plasmids carrying antibiotic resistance genes is well established, much less is known about the temporary and reversible resistance induced by antibiotic treatment, such as that due to treatment with bacterial cell wall-inhibiting antibiotics such as ampicillin. Typically, ampicillin concentration in the blood and other tissues gradually increases over time after initiation of the treatment. As a result, the bacterial population is exposed to a concentration gradient of ampicillin during the treatment of infectious diseases. This is different from
    MeSH term(s) Ampicillin/pharmacology ; Animals ; Anti-Bacterial Agents/pharmacology ; Cell Line ; Macrophages/microbiology ; Mice ; Salmonella typhi/genetics
    Chemical Substances Anti-Bacterial Agents ; Ampicillin (7C782967RD)
    Language English
    Publishing date 2022-05-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218698-6
    ISSN 1098-5522 ; 0019-9567
    ISSN (online) 1098-5522
    ISSN 0019-9567
    DOI 10.1128/iai.00119-22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Susceptibility of male reproductive system to bisphenol A, an endocrine disruptor: Updates from epidemiological and experimental evidence.

    Yadav, Shiv K / Bijalwan, Vandana / Yadav, Suresh / Sarkar, Kamalesh / Das, Santasabuj / Singh, Dhirendra P

    Journal of biochemical and molecular toxicology

    2022  Volume 37, Issue 4, Page(s) e23292

    Abstract: Bisphenol A (BPA) is an omnipresent environmental pollutant. Despite being restrictions in-force for its utilization, it is widely being used in the production of polycarbonate plastics and epoxy resins. Direct, low-dose, and long-term exposure to BPA is ...

    Abstract Bisphenol A (BPA) is an omnipresent environmental pollutant. Despite being restrictions in-force for its utilization, it is widely being used in the production of polycarbonate plastics and epoxy resins. Direct, low-dose, and long-term exposure to BPA is expected when they are used in the packaging of food products and are used as containers for food consumption. Occupationally, workers are typically exposed to BPA at higher levels and for longer periods during the manufacturing process. BPA is a known endocrine disruptor chemical (EDC), that causes male infertility, which has a negative impact on human life from emotional, physical, and societal standpoints. To minimize the use of BPA in numerous consumer products, efforts and regulations are being made. Despite legislative limits in numerous nations, BPA is still found in consumer products. This paper examines BPA's overall male reproductive toxicity, including its impact on the hypothalamic-pituitary-testicular (HPT) axis, hormonal homeostasis, testicular steroidogenesis, sperm parameters, reproductive organs, and antioxidant defense system. Furthermore, this paper highlighted the role of non-monotonic dose-response (NMDR) in BPA exposure, which will help to improve the overall understanding of the harmful effects of BPA on the male reproductive system.
    MeSH term(s) Male ; Humans ; Endocrine Disruptors/toxicity ; Semen ; Genitalia, Male ; Testis ; Benzhydryl Compounds/toxicity
    Chemical Substances bisphenol A (MLT3645I99) ; Endocrine Disruptors ; Benzhydryl Compounds
    Language English
    Publishing date 2022-12-16
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1410020-4
    ISSN 1099-0461 ; 1095-6670
    ISSN (online) 1099-0461
    ISSN 1095-6670
    DOI 10.1002/jbt.23292
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: A comparative study of sequence- and structure-based features of small RNAs and other RNAs of bacteria.

    Barik, Amita / Das, Santasabuj

    RNA biology

    2017  Volume 15, Issue 1, Page(s) 95–103

    Abstract: Small RNAs (sRNAs) in bacteria have emerged as key players in transcriptional and post-transcriptional regulation of gene expression. Here, we present a statistical analysis of different sequence- and structure-related features of bacterial sRNAs to ... ...

    Abstract Small RNAs (sRNAs) in bacteria have emerged as key players in transcriptional and post-transcriptional regulation of gene expression. Here, we present a statistical analysis of different sequence- and structure-related features of bacterial sRNAs to identify the descriptors that could discriminate sRNAs from other bacterial RNAs. We investigated a comprehensive and heterogeneous collection of 816 sRNAs, identified by northern blotting across 33 bacterial species and compared their various features with other classes of bacterial RNAs, such as tRNAs, rRNAs and mRNAs. We observed that sRNAs differed significantly from the rest with respect to G+C composition, normalized minimum free energy of folding, motif frequency and several RNA-folding parameters like base-pairing propensity, Shannon entropy and base-pair distance. Based on the selected features, we developed a predictive model using Random Forests (RF) method to classify the above four classes of RNAs. Our model displayed an overall predictive accuracy of 89.5%. These findings would help to differentiate bacterial sRNAs from other RNAs and further promote prediction of novel sRNAs in different bacterial species.
    MeSH term(s) Bacteria/genetics ; Base Composition/genetics ; Base Pairing ; Gene Expression Regulation, Bacterial ; RNA, Bacterial/classification ; RNA, Bacterial/genetics ; RNA, Messenger/classification ; RNA, Messenger/genetics ; RNA, Ribosomal/classification ; RNA, Ribosomal/genetics ; RNA, Small Untranslated/classification ; RNA, Small Untranslated/genetics ; RNA, Transfer/classification ; RNA, Transfer/genetics
    Chemical Substances RNA, Bacterial ; RNA, Messenger ; RNA, Ribosomal ; RNA, Small Untranslated ; RNA, Transfer (9014-25-9)
    Language English
    Publishing date 2017-11-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1555-8584
    ISSN (online) 1555-8584
    DOI 10.1080/15476286.2017.1387709
    Database MEDical Literature Analysis and Retrieval System OnLINE

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