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  1. Article: GI Research in a Veterinary School.

    Anwer, M Sawkat

    Cellular and molecular gastroenterology and hepatology

    2016  Volume 2, Issue 6, Page(s) 704–706

    Language English
    Publishing date 2016-11
    Publishing country United States
    Document type Editorial
    ISSN 2352-345X
    ISSN 2352-345X
    DOI 10.1016/j.jcmgh.2016.08.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Gastrointestinal parasitosis in cattle

    Md. Abu Sayeed / Lauren Ungar / Yeasin Haider Chowdhury / Md. Saiful Bari / Md. Mizanur Rahman / M. Sawkat Anwer / Md. Ahasanul Hoque

    Veterinary Medicine and Science, Vol 10, Iss 1, Pp n/a-n/a (2024)

    Unveiling the landscape across diverse production systems in Bangladesh

    2024  

    Abstract: Abstract Background Factors influencing parasitosis in cattle in Bangladesh remain inadequately explored, necessitating a comprehensive investigation for interventions and sustainable livestock farming. Objectives We conducted this study to estimate the ... ...

    Abstract Abstract Background Factors influencing parasitosis in cattle in Bangladesh remain inadequately explored, necessitating a comprehensive investigation for interventions and sustainable livestock farming. Objectives We conducted this study to estimate the prevalence and distribution of gastrointestinal parasites, exploring their intricate relationship with farm management practices across a spectrum of small‐, medium‐, and large‐scale commercial farms. Methods We conducted this study in the Chattogram district of Bangladesh. We collected a total of 189 freshly voided faecal samples from different farms. We recorded the age, breed, milking status, sex, body condition score, and anthelmintic use history of the sampled animals. We processed the samples using the direct smear method, with the identification of one egg per sample being considered positive. Results We estimated the prevalence of gastrointestinal parasite infection in large‐scale (52.1%), medium‐scale (54.5%), and small‐scale farms (70.0%), with statistically significant differences (p ≤ 0.05). Both pregnant and lactating cows, as well as indigenous cattle, were more likely to have gastrointestinal parasites (p ≤ 0.05). The predominant parasites across farms of all sizes were trematodes (Paramphistomum spp. and Schistosomas spp.) and protozoa (Balantidium coli and Coccidia spp.). Conclusion Poor farm management practices, such as no pasture management and inadequate deworming regimens, may contribute to the elevated prevalence and infection load observed on small‐scale farms. The increased parasitosis in previously dewormed animals can be attributed to the development of anthelmintic resistance against gastrointestinal parasites. Implementing proper and effective deworming strategies is crucial to preventing gastrointestinal parasitosis and mitigating the risk of anthelmintic resistance.
    Keywords commercial farm ; gastrointestinal ; parasitosis ; prevalence ; resistance ; Veterinary medicine ; SF600-1100
    Subject code 630
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Role of protein kinase C isoforms in bile formation and cholestasis.

    Anwer, M Sawkat

    Hepatology (Baltimore, Md.)

    2014  Volume 60, Issue 3, Page(s) 1090–1097

    Abstract: Transhepatic solute transport provides the osmotic driving force for canalicular bile formation. Choleretic and cholestatic agents affect bile formation, in part, by altering plasma membrane localizations of transporters involved in bile formation. These ...

    Abstract Transhepatic solute transport provides the osmotic driving force for canalicular bile formation. Choleretic and cholestatic agents affect bile formation, in part, by altering plasma membrane localizations of transporters involved in bile formation. These short-term dynamic changes in transporter location are highly regulated posttranslational events requiring various cellular signaling pathways. Interestingly, both choleretic and cholestatic agents activate the same intracellular signaling kinases, such as phosphoinositide-3-kinase (PI3K), protein kinase C (PKC), and mitogen-activated protein kinase (MAPK). An emerging theme is that choleretic and cholestatic effects may be mediated by different isoforms of these kinases. This is most evident for PKC-mediated regulation of plasma membrane localization of Na+-taurocholate cotransporting polypeptide (NTCP) and multidrug resistance-associated protein 2 (MRP2) by conventional PKCα (cPKCα), novel PKCδ (nPKCδ), nPKCε, and atypical PKCζ (aPKCζ). aPKCζ may mediate choleretic effects by inserting NTCP into the plasma membrane, and nPKCε may mediate cholestatic effects by retrieving MRP2 from the plasma membrane. On the other hand, cPKCα and nPKCδ may be involved in choleretic, cholestatic, and anticholestatic effects by inserting, retrieving, and inhibiting retrieval of transporters, respectively. The effects of PKC isoforms may be mediated by phosphorylation of the transporters, actin binding proteins (radixin and myristoylated alanine-rich C kinase substrate), and Rab proteins. Human NTCP plays an important role in the entry of hepatitis B and D viruses into hepatocytes and consequent infection. Thus, PKCs, by regulating NTCP trafficking, may also play an important role in hepatic viral infections.
    MeSH term(s) Animals ; Bile/metabolism ; Cholestasis/enzymology ; Humans ; Protein Isoforms/metabolism ; Protein Kinase C/metabolism
    Chemical Substances Protein Isoforms ; Protein Kinase C (EC 2.7.11.13)
    Language English
    Publishing date 2014-07-28
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 604603-4
    ISSN 1527-3350 ; 0270-9139
    ISSN (online) 1527-3350
    ISSN 0270-9139
    DOI 10.1002/hep.27088
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Gastrointestinal parasitosis in cattle: Unveiling the landscape across diverse production systems in Bangladesh.

    Sayeed, Md Abu / Ungar, Lauren / Chowdhury, Yeasin Haider / Bari, Md Saiful / Rahman, Md Mizanur / Anwer, M Sawkat / Hoque, Md Ahasanul

    Veterinary medicine and science

    2023  Volume 10, Issue 1, Page(s) e1325

    Abstract: Background: Factors influencing parasitosis in cattle in Bangladesh remain inadequately explored, necessitating a comprehensive investigation for interventions and sustainable livestock farming.: Objectives: We conducted this study to estimate the ... ...

    Abstract Background: Factors influencing parasitosis in cattle in Bangladesh remain inadequately explored, necessitating a comprehensive investigation for interventions and sustainable livestock farming.
    Objectives: We conducted this study to estimate the prevalence and distribution of gastrointestinal parasites, exploring their intricate relationship with farm management practices across a spectrum of small-, medium-, and large-scale commercial farms.
    Methods: We conducted this study in the Chattogram district of Bangladesh. We collected a total of 189 freshly voided faecal samples from different farms. We recorded the age, breed, milking status, sex, body condition score, and anthelmintic use history of the sampled animals. We processed the samples using the direct smear method, with the identification of one egg per sample being considered positive.
    Results: We estimated the prevalence of gastrointestinal parasite infection in large-scale (52.1%), medium-scale (54.5%), and small-scale farms (70.0%), with statistically significant differences (p ≤ 0.05). Both pregnant and lactating cows, as well as indigenous cattle, were more likely to have gastrointestinal parasites (p ≤ 0.05). The predominant parasites across farms of all sizes were trematodes (Paramphistomum spp. and Schistosomas spp.) and protozoa (Balantidium coli and Coccidia spp.).
    Conclusion: Poor farm management practices, such as no pasture management and inadequate deworming regimens, may contribute to the elevated prevalence and infection load observed on small-scale farms. The increased parasitosis in previously dewormed animals can be attributed to the development of anthelmintic resistance against gastrointestinal parasites. Implementing proper and effective deworming strategies is crucial to preventing gastrointestinal parasitosis and mitigating the risk of anthelmintic resistance.
    MeSH term(s) Female ; Animals ; Cattle ; Lactation ; Bangladesh/epidemiology ; Anthelmintics/therapeutic use ; Intestinal Diseases, Parasitic/epidemiology ; Intestinal Diseases, Parasitic/veterinary ; Intestinal Diseases, Parasitic/parasitology ; Gastrointestinal Diseases/epidemiology ; Gastrointestinal Diseases/veterinary ; Cattle Diseases/parasitology
    Chemical Substances Anthelmintics
    Language English
    Publishing date 2023-11-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2819409-3
    ISSN 2053-1095 ; 2053-1095
    ISSN (online) 2053-1095
    ISSN 2053-1095
    DOI 10.1002/vms3.1325
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Identifying Benefits, Challenges, and Options for Improvement of Veterinary Work-Based Learning in Bangladesh.

    Sattar, Abdullah Al / Hoque, Ahasanul / Irin, Nusrat / Charles, David / Ciappesoni, José Luis / Anwer, M Sawkat / Debnath, Nitish / Baillie, Sarah

    Journal of veterinary medical education

    2022  , Page(s) e20220049

    Abstract: Work-based learning (WBL) provides relevant contemporary experience of working environments. Potential benefits for students include developing invaluable skills (clinical, personal, cultural, and professional) and gaining greater awareness of the ... ...

    Abstract Work-based learning (WBL) provides relevant contemporary experience of working environments. Potential benefits for students include developing invaluable skills (clinical, personal, cultural, and professional) and gaining greater awareness of the profession and future career opportunities. However, there are also challenges related to running and sustaining a successful WBL program. In the context of this study, WBL refers to external placements undertaken by final-year students. The aims of the study were to identify ways to optimize the benefits while managing the challenges in delivering WBL in a veterinary curriculum. An in-depth study was undertaken at Chattogram Veterinary and Animal Sciences University (CVASU), Bangladesh, where a WBL program has been in place for 20 years. Final-year veterinary students at CVASU were surveyed to ascertain WBL experiences; survey findings were further explored in focus groups with students, recent graduates, faculty, and placement providers. Most agreed that they had sufficient opportunities to observe, assist, and directly handle pet and farm animals with top skills learned, including clinical diagnosis and communication, and recognized the value of learning in professional workplaces. Based on suggested areas of improvement, the following recommendations can be made: carefully selecting placements, adjusting time allocation, improving communication and building strong collaborations with placement providers, allowing students to customize more placements to align with their career preferences, and staffing adequately to arrange placements and manage a WBL program. Overall, results suggest the current WBL arrangements at CVASU are reasonably good, but there are some specific areas for improvement.
    Language English
    Publishing date 2022-09-26
    Publishing country Canada
    Document type Journal Article
    ISSN 0748-321X
    ISSN 0748-321X
    DOI 10.3138/jvme-2022-0049
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Improvement of DVM Curriculum to Meet OIE Recommendations at Chattogram Veterinary and Animal Sciences University, Bangladesh.

    Hoque, Md Ahasanul / Ahad, Abdul / Saifuddin, A K M / Warner, Angeline E / Debnath, Nitish C / Sawkat Anwer, M

    Journal of veterinary medical education

    2020  Volume 47, Issue s1, Page(s) 48–57

    Abstract: A veterinary education twinning project between Chattogram Veterinary and Animal Sciences University (CVASU) and Tufts Cummings School of Veterinary Medicine (TCSVM) was supported by the World Organisation for Animal Health (OIE) to align CVASU's ... ...

    Abstract A veterinary education twinning project between Chattogram Veterinary and Animal Sciences University (CVASU) and Tufts Cummings School of Veterinary Medicine (TCSVM) was supported by the World Organisation for Animal Health (OIE) to align CVASU's veterinary curriculum with OIE's recommended Core Curriculum and Day 1 Competencies. The major objectives were curriculum development with improvement to the internship program, introduction of problem-based learning (PBL), and implementation of continuing education (CE). Major activities to achieve these objectives involved several workshops and seminars at CVASU and establishing student exchange and CVASU faculty training programs. Major accomplishments were (a) implementation of a revised Doctor of Veterinary Medicine (DVM) curriculum at CVASU aligned with the OIE-recommended curriculum and Day 1 Competencies; (b) incorporation of PBL into the curriculum and development of 23 PBL cases relevant to Bangladesh-specific diseases; (c) improvement of the internship program by including Day 1 Competencies; (d) development and implementation of 11 structured CE sessions including hands-on training; (e) improvement of curriculum, teaching, and clinical training at CVASU following training of CVASU faculty and students at TCSVM; and (f) three peer-reviewed publications from summer research projects by TCSVM students at CVASU. The twinning project allowed CVASU to improve its DVM curriculum by aligning with OIE's recommended curriculum and Day 1 Competencies. The impact of the project went beyond CVASU as evidenced by other veterinary schools adopting the CVASU curriculum and PBL, veterinary school deans engaged in improving veterinary curriculum and clinical training, and implementation of a national CE program for veterinarians.
    MeSH term(s) Animals ; Bangladesh ; Curriculum ; Education, Veterinary ; Schools, Veterinary ; Universities
    Language English
    Publishing date 2020-06-09
    Publishing country Canada
    Document type Journal Article
    ISSN 0748-321X
    ISSN 0748-321X
    DOI 10.3138/jvme-2019-0107
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Coronavirus disease 2019 and future pandemics: Impacts on livestock health and production and possible mitigation measures.

    Haque, Md Hakimul / Islam, Md Aminul / Karim, Md Rezaul / Kayesh, Mohammad Enamul Hoque / Sarker, Subir / Nazir, K H M Nazmul Hussain / Anwer, M Sawkat

    Veterinary world

    2021  Volume 14, Issue 9, Page(s) 2434–2443

    Abstract: The World Health Organization declared coronavirus disease 2019 (COVID-19) a pandemic on March 11, 2020. COVID-19, the current global health emergency, is wreaking havoc on human health systems and, to a lesser degree, on animals globally. The outbreak ... ...

    Abstract The World Health Organization declared coronavirus disease 2019 (COVID-19) a pandemic on March 11, 2020. COVID-19, the current global health emergency, is wreaking havoc on human health systems and, to a lesser degree, on animals globally. The outbreak has continued since the first report of COVID-19 in China in December 2019, and the second and third waves of the outbreak have already begun in several countries. COVID-19 is expected to have adverse effects on crop production, food security, integrated pest control, tourism, the car industry, and other sectors of the global economy. COVID-19 induces a range of effects in livestock that is reflected economically since human health and livelihood are intertwined with animal health. We summarize the potentially harmful effects of COVID-19 on livestock and possible mitigation steps in response to this global outbreak. Mitigation of the negative effects of COVID-19 and future pandemics on livestock requires the implementation of current guidelines.
    Language English
    Publishing date 2021-09-20
    Publishing country India
    Document type Journal Article ; Review
    ZDB-ID 2456277-4
    ISSN 2231-0916 ; 0972-8988
    ISSN (online) 2231-0916
    ISSN 0972-8988
    DOI 10.14202/vetworld.2021.2434-2443
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Sodium-dependent bile salt transporters of the SLC10A transporter family: more than solute transporters.

    Anwer, M Sawkat / Stieger, Bruno

    Pflugers Archiv : European journal of physiology

    2013  Volume 466, Issue 1, Page(s) 77–89

    Abstract: The SLC10A transporter gene family consists of seven members and substrates transported by three members (SLC10A1, SLC10A2 and SLC10A6) are Na(+)-dependent. SLC10A1 (sodium taurocholate cotransporting polypeptide [NTCP]) and SLC10A2 (apical sodium- ... ...

    Abstract The SLC10A transporter gene family consists of seven members and substrates transported by three members (SLC10A1, SLC10A2 and SLC10A6) are Na(+)-dependent. SLC10A1 (sodium taurocholate cotransporting polypeptide [NTCP]) and SLC10A2 (apical sodium-dependent bile salt transporter [ASBT]) transport bile salts and play an important role in maintaining enterohepatic circulation of bile salts. Solutes other than bile salts are also transported by NTCP. However, ASBT has not been shown to be a transporter for non-bile salt substrates. While the transport function of NTCP can potentially be used as liver function test, interpretation of such a test may be complicated by altered expression of NTCP in diseases and presence of drugs that may inhibit NTCP function. Transport of bile salts by NTCP and ASBT is inhibited by a number of drugs and it appears that ASBT is more permissive to drug inhibition than NTCP. The clinical significance of this inhibition in drug disposition and drug-drug interaction remains to be determined. Both NCTP and ASBT undergo post-translational regulations that involve phosphorylation/dephosphorylation, translocation to and retrieval from the plasma membrane and degradation by the ubiquitin-proteasome system. These posttranslational regulations are mediated via signaling pathways involving cAMP, calcium, nitric oxide, phosphoinositide-3-kinase (PI3K), protein kinase C (PKC) and protein phosphatases. There appears to be species difference in the substrate specificity and the regulation of plasma membrane localization of human and rodent NTCP. These differences should be taken into account when extrapolating rodent data for human clinical relevance and developing novel therapies. NTCP has recently been shown to play an important role in HBV and HDV infection by serving as a receptor for entry of these viruses into hepatocytes.
    MeSH term(s) Animals ; Bile Acids and Salts/metabolism ; Humans ; Liver/metabolism ; Organic Anion Transporters, Sodium-Dependent/antagonists & inhibitors ; Organic Anion Transporters, Sodium-Dependent/metabolism ; Protein Transport ; Sodium/metabolism ; Symporters/antagonists & inhibitors ; Symporters/metabolism
    Chemical Substances Bile Acids and Salts ; Organic Anion Transporters, Sodium-Dependent ; Symporters ; sodium-bile acid cotransporter (145420-23-1) ; Sodium (9NEZ333N27)
    Language English
    Publishing date 2013-10-03
    Publishing country Germany
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 6380-0
    ISSN 1432-2013 ; 0031-6768
    ISSN (online) 1432-2013
    ISSN 0031-6768
    DOI 10.1007/s00424-013-1367-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Hydrophobic bile acid apoptosis is regulated by sphingosine-1-phosphate receptor 2 in rat hepatocytes and human hepatocellular carcinoma cells.

    Webster, Cynthia R L / Anwer, M Sawkat

    American journal of physiology. Gastrointestinal and liver physiology

    2016  Volume 310, Issue 10, Page(s) G865–73

    Abstract: The hepatotoxic bile acid glycochenodeoxycholate (GCDC) modulates hepatocyte cell death through activation of JNK, Akt, and Erk. The nonhepatotoxic bile acid taurocholate activates Akt and Erk through the sphingosine-1-phosphate receptor 2 (S1PR2). The ... ...

    Abstract The hepatotoxic bile acid glycochenodeoxycholate (GCDC) modulates hepatocyte cell death through activation of JNK, Akt, and Erk. The nonhepatotoxic bile acid taurocholate activates Akt and Erk through the sphingosine-1-phosphate receptor 2 (S1PR2). The role of the S1PR2 in GCDC-mediated apoptosis and kinase activation is unknown. Studies were done in rat hepatocytes, HUH7 cells, and HUH7 cells stably transfected with rat Ntcp (HUH7-Ntcp). Cells were treated with GCDC and apoptosis was monitored morphologically by Hoechst staining and biochemically by immunoblotting for the active cleaved fragment of caspase 3. Kinase activation was determined by immunoblotting with phospho-specific antibodies. JTE-013, an inhibitor of S1PR2, significantly attenuated morphological evidence of GCDC-induced apoptosis and prevented caspase 3 cleavage in rat hepatocytes and HUH7-Ntcp cells. In hepatocytes, JTE-013 mildly suppressed, augmented, and had no effect on GCDC-induced JNK, Akt, and Erk phosphorylation, respectively. Similar results were seen in HUH7-Ntcp cells except for mild suppression of JNK and Erk phosphorylation. Knockdown of S1PR2 in HUH7-Ntcp augmented Akt, inhibited JNK, and had no effect on Erk phosphorylation. GCDC failed to induce apoptosis or kinase activation in HUH7 cells. In conclusion, SIPR2 inhibition attenuates GCDC-induced apoptosis and inhibits and augments GCDC-induced JNK and Akt phosphorylation, respectively. In addition, GCDC must enter hepatocytes to mediate cell death or activate kinases. These results suggest that SIPR2 activation is proapoptotic in GCDC-induced cell death but that this effect is not due to direct ligation of the S1PR2 by the bile acid.
    MeSH term(s) Animals ; Apoptosis ; Carcinoma, Hepatocellular/metabolism ; Cell Line, Tumor ; Cells, Cultured ; Glycochenodeoxycholic Acid/metabolism ; Glycochenodeoxycholic Acid/toxicity ; Hepatocytes/metabolism ; Humans ; Liver Neoplasms/metabolism ; MAP Kinase Kinase 4/metabolism ; MAP Kinase Signaling System ; Male ; Proto-Oncogene Proteins c-akt/metabolism ; Pyrazoles/pharmacology ; Pyridines/pharmacology ; Rats ; Rats, Wistar ; Receptors, Lysosphingolipid/antagonists & inhibitors ; Receptors, Lysosphingolipid/metabolism ; Sphingosine-1-Phosphate Receptors
    Chemical Substances JTE 013 ; Pyrazoles ; Pyridines ; Receptors, Lysosphingolipid ; S1PR2 protein, human ; Sphingosine-1-Phosphate Receptors ; sphingosine-1-phosphate receptor-2, rat ; Glycochenodeoxycholic Acid (640-79-9) ; Proto-Oncogene Proteins c-akt (EC 2.7.11.1) ; MAP Kinase Kinase 4 (EC 2.7.12.2)
    Language English
    Publishing date 2016-03-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603840-2
    ISSN 1522-1547 ; 0193-1857
    ISSN (online) 1522-1547
    ISSN 0193-1857
    DOI 10.1152/ajpgi.00253.2015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Cellular regulation of hepatic bile acid transport in health and cholestasis.

    Anwer, M Sawkat

    Hepatology (Baltimore, Md.)

    2004  Volume 39, Issue 3, Page(s) 581–590

    MeSH term(s) Animals ; Bile Acids and Salts/metabolism ; Biological Transport/physiology ; Cholestasis/metabolism ; Health ; Humans ; Liver/metabolism ; Liver/pathology
    Chemical Substances Bile Acids and Salts
    Language English
    Publishing date 2004-03
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 604603-4
    ISSN 1527-3350 ; 0270-9139
    ISSN (online) 1527-3350
    ISSN 0270-9139
    DOI 10.1002/hep.20090
    Database MEDical Literature Analysis and Retrieval System OnLINE

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