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Islam MR, Sarker U, Azam MG, Hossain J, Alam MA, Ullah R, Bari A, Hossain N, El Sabagh A, Islam MS. Potassium augments growth, yield, nutrient content, and drought tolerance in mung bean (Vigna radiata L. Wilczek.). Sci Rep 2024; 14:9378. [PMID: 38654029 DOI: 10.1038/s41598-024-60129-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/19/2024] [Indexed: 04/25/2024] Open
Abstract
Uneven rainfall and high temperature cause drought in tropical and subtropical regions which is a major challenge to cultivating summer mung bean. Potassium (K), a major essential nutrient of plants can alleviate water stress (WS) tolerance in plants. A field trial was executed under a rainout shelter with additional K fertilization including recommended K fertilizer (RKF) for relieving the harmful impact of drought in response to water use efficiency (WUE), growth, yield attributes, nutrient content, and yield of mung bean at the Regional Agricultural Research Station, BARI, Ishwardi, Pabna in two successive summer season of 2018 and 2019. Drought-tolerant genotype BMX-08010-2 (G1) and drought-susceptible cultivar BARI Mung-1 (G2) were grown by applying seven K fertilizer levels (KL) using a split-plot design with three replications, where mung bean genotypes were allotted in the main plots, and KL were assigned randomly in the sub-plots. A considerable variation was observed in the measured variables. Depending on the different applied KL and seed yield of mung bean, the water use efficiency (WUE) varied from 4.73 to 8.14 kg ha-1 mm-1. The treatment applying 125% more K with RKF (KL7) under WS gave the maximum WUE (8.14 kg ha-1 mm-1) obtaining a seed yield of 1093.60 kg ha-1. The treatment receiving only RKF under WS (KL2) provided the minimum WUE (4.73 kg ha-1 mm-1) attaining a seed yield of 825.17 kg ha-1. Results showed that various characteristics including nutrients (N, P, K, and S) content in stover and seed, total dry matter (TDM) in different growth stages, leaf area index (LAI), crop growth rate (CGR), root volume (RV), root density (RD), plant height, pod plant-1, pod length, seeds pod-1, seed weight, and seed yield in all pickings increased with increasing K levels, particularly noted with KL7. The highest grain yield (32.52%) was also obtained from KL7 compared to lower K with RKF. Overall, yield varied from 1410.37 kg ha-1 using 281 mm water (KL1; well-watered condition with RKF) to 825.17 kg ha-1 using 175 mm water (KL2). The results exhibited that the application of additional K improves the performance of all traits under WS conditions. Therefore, mung beans cultivating under WS requires additional K to diminish the negative effect of drought, and adequate use of K contributes to accomplishing sustainable productivity.
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Affiliation(s)
- Mohammad Rafiqul Islam
- Agronomy Division, Regional Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Ishwardi, Pabna, 6620, Bangladesh
| | - Umakanta Sarker
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
| | | | - Jamil Hossain
- Pulses Research Centre, BARI, Ishwardi, Pabna, 6620, Bangladesh
| | | | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Bari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nazmul Hossain
- Department of Agronomy, Iowa State University, Ames, IA, 50010, USA
| | - Ayman El Sabagh
- Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, 33156, Egypt
| | - Mohammad Sohidul Islam
- Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
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Haque SMR, Tisha S, Islam MR, Swarna SS, Bari MS, Baset KU. Chronic Morbidities Overrule Acute Morbidities in Determining Self-Reported Health in Rural Bangladesh. Mymensingh Med J 2024; 33:568-579. [PMID: 38557542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Self- rated health (SRH) is a valuable screening-level measure of a community's health status. A better understanding of the factors that influence SRH is time-demanding and challenging. This study aims to examine the determinants of SRH by investigating health morbidities, demographic and socio-economic factors in Bangladesh perspective. This cross-sectional study was conducted among 908 adults (aged 18 years and above) in Manikganj district of central Bangladesh from 2nd January to 13th January 2017. Chi-square test was performed to test the association and binary logistic regression was performed to predict the relationship of SRH with all potential variables. The present study reveals the balance of bad health versus good health which was 27.2% and 72.8% respectively. Participants had at least one or more chronic diseases reported 3.40 times (p<0.001) bad health compared to those who did not have any chronic illness. In contrast, acute morbidity was not a significant determinant for SRH (OR=1.379, p=0.063). Older population aged 60 years and above had 3.96 times (p<0.001) higher chance of having self-reported bad health than the younger population. In addition, depression was also found a significant contributor (OR=2.05, p<0.001) to bad health. Chronic morbidity, older age and depression are the significant predictors of SRH. If SRH is used as a screening-level measure for the rural communities then the chronic disease status of rural Bangladesh will be identified quickly and easily.
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Affiliation(s)
- S M R Haque
- Dr SM Raysul Haque, Assistant Professor, Department of Public Health, Independent University Bangladesh; E-mail:
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Islam MR, Sultana N. Prevalence of Thyroid Dysfunction in Type 2 Diabetes Mellitus. Mymensingh Med J 2024; 33:341-349. [PMID: 38557508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The level of thyroid hormones is often changed in uncontrolled diabetic patients. Screening for Thyroid dysfunction (TD) among patients with Type 2 Diabetes mellitus (T2DM) should be performed considering the increased prevalence of thyroid disorders. This cross-sectional comparative study was conducted in outpatient department of Endocrinology and Medicine, Mymensingh Medical College Hospital, Mymensingh (MMCH) from 1st March 2020 to 30th August 2021. One hundred (100) patients with type 2 diabetes along with 100 (hundred) non-diabetic controls of same age group were enrolled in the study. After taking clinical data, patients were investigated to estimate Fasting plasma glucose (FPG), serum free tri-iodothyronine (FT3), free thyroxin (FT4) and thyroid stimulating hormone (TSH) level to see thyroid dysfunction. Patients were selected with purposive sampling. Thyroid dysfunction was found to be more in T2DM (15.0%) in comparison with non-diabetic controls (5.0%) and this difference was statistically significant (p=0.018). In both diabetic and non-diabetic groups, subclinical hypothyroidism and hypothyroidism were the most common thyroid dysfunction. Thyroid dysfunction was found more in 40-60 years that suggests the prevalence of thyroid dysfunction are increasing in diabetic patients with advancing age. Thyroid dysfunction was found more among overweight and obese patient in both groups. Mean BMI was found higher among diabetic patient with thyroid dysfunction. Logistic regression showed significant association of Thyroid dysfunction with age >50 years and high FPG level. We found thyroid dysfunction was more prevalent in patients with T2DM than non-diabetics. So, screening for thyroid dysfunction among type 2 diabetic patients by estimating Serum TSH, FT4 level should be performed.
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Affiliation(s)
- M R Islam
- Dr Mohammad Rakibul Islam, Emergency Medical Officer, Mymensingh Medical College Hospital, Mymensingh, Bangladesh; E-mail:
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Islam MR, Biswas S, Mowla SGM, Banik GC, Ahmed HU, Rahim A, Tanveer T, Amin MR, Azad KAK. Mental Health Assessment of Health Care Providers of Bangladesh during Covid-19 Pandemic: A Cross-Sectional Web-Based Study. Mymensingh Med J 2024; 33:247-253. [PMID: 38163800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
SARS COV 2 raised immense agony to everyone. As health care workers remains direct contact with patients, they are vulnerable to mental health disorder. The study was done to identify mental health status of health care providers of Bangladesh. It was a cross sectional web based survey among health care providers of bangladesh. A structured web based questionnaire was prepared both in Bangla and English version for better understanding. Total 2594 health care workers responded to online survey. Male were 1303(50.2%) and female were 1291(49.8%). Occupational demography shows 98.5% were physicians. Mean value of patient health questionnaire 9 (PHQ9) and generalized anxiety disorder (GAD) were 8.43±6.082 and 8.27±5.234 respectively among healthcare providers. To overcome anxiety and depression, 93.4% of HCW didn't receive any psychological material and 85.6% HCW didn't find physiological resources even through media. Despite many lacking, healthcare workers were resilient in our study.
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Affiliation(s)
- M R Islam
- Professor Mohammad Rafiqul Islam, Professor of Medicine, Shaheed Suhrawardy Medical College, Dhaka, Bangladesh; E-mail:
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Husna A, Rahman MM, Badruzzaman ATM, Sikder MH, Islam MR, Rahman MT, Alam J, Ashour HM. Extended-Spectrum β-Lactamases (ESBL): Challenges and Opportunities. Biomedicines 2023; 11:2937. [PMID: 38001938 PMCID: PMC10669213 DOI: 10.3390/biomedicines11112937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 11/26/2023] Open
Abstract
The rise of antimicrobial resistance, particularly from extended-spectrum β-lactamase producing Enterobacteriaceae (ESBL-E), poses a significant global health challenge as it frequently causes the failure of empirical antibiotic therapy, leading to morbidity and mortality. The E. coli- and K. pneumoniae-derived CTX-M genotype is one of the major types of ESBL. Mobile genetic elements (MGEs) are involved in spreading ESBL genes among the bacterial population. Due to the rapidly evolving nature of ESBL-E, there is a lack of specific standard examination methods. Carbapenem has been considered the drug of first choice against ESBL-E. However, carbapenem-sparing strategies and alternative treatment options are needed due to the emergence of carbapenem resistance. In South Asian countries, the irrational use of antibiotics might have played a significant role in aggravating the problem of ESBL-induced AMR. Superbugs showing resistance to last-resort antibiotics carbapenem and colistin have been reported in South Asian regions, indicating a future bleak picture if no urgent action is taken. To counteract the crisis, we need rapid diagnostic tools along with efficient treatment options. Detailed studies on ESBL and the implementation of the One Health approach including systematic surveillance across the public and animal health sectors are strongly recommended. This review provides an overview of the background, associated risk factors, transmission, and therapy of ESBL with a focus on the current situation and future threat in the developing countries of the South Asian region and beyond.
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Affiliation(s)
- Asmaul Husna
- Department of Pathology, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan Town 350, Miaoli County, Taiwan
| | - Md. Masudur Rahman
- Department of Pathology, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
| | - A. T. M. Badruzzaman
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan Town 350, Miaoli County, Taiwan
| | - Mahmudul Hasan Sikder
- Department of Pharmacology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Livestock Division, Bangladesh Agricultural Research Council, Farmgate, Dhaka 1215, Bangladesh
| | - Md. Tanvir Rahman
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Jahangir Alam
- Animal Biotechnology Division, National Institute of Biotechnology, Dhaka 1349, Bangladesh
| | - Hossam M. Ashour
- Department of Integrative Biology, College of Arts and Sciences, University of South Florida, St. Petersburg, FL 33701, USA
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Hossain MK, Hendi A, Asim N, Alghoul MA, Rafiqul Islam M, Hussain SMS. Chemiresistive Gas Sensing using Graphene-Metal Oxide Hybrids. Chem Asian J 2023:e202300529. [PMID: 37695946 DOI: 10.1002/asia.202300529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 09/13/2023]
Abstract
Chemiresistive sensing lies in its ability to provide fast, accurate, and reliable detection of various gases in a cost-effective and non-invasive manner. In this context, graphene-functionalized metal oxides play crucial role in hydrogen gas sensing. However, a cost-effective, defect-free, and large production schemes of graphene-based sensors are required for industrial applications. This review focuses on graphene-functionalized metal oxide nanostructures designed for gaseous molecules detection, mainly hydrogen gas sensing applications. For the convenience of the reader and to understand the role of graphene-metal oxide hybrids (GMOH) in gas sensing activities, a brief overview of the properties and synthesis routes of graphene and GMOH have been reported in this paper. Metal oxides play an essential role in the GMOH construct for hydrogen gas sensing. Therefore, various metal oxides-decorated GMOH constructs are detailed in this review as gas sensing platforms, particularly for hydrogen detection. Finally, specific directions for future research works and challenges ahead in designing highly selective and sensitive hydrogen gas sensors have been highlighted. As illustrated in this review, understanding of the metal oxides-decorated GMOH constructs is expected to guide ones in developing emerging hybrid nanomaterials that are suitable for hydrogen gas sensing applications.
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Affiliation(s)
- Mohammad Kamal Hossain
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Abdulmajeed Hendi
- Physics Department & IRC-Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Nilofar Asim
- Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Mohammad Ahmed Alghoul
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Mohammad Rafiqul Islam
- Department of Electrical and Electronic Engineering, Khulna University of Engineering and Technology, Khulna, 9203, Bangladesh
| | - Syed Muhammad Shakil Hussain
- Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
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Hossain I, Subarna JF, Kabiraj CK, Begum JA, Parvin R, Martins M, Diel DG, Chowdhury EH, Islam MR, Nooruzzaman M. A Booster with a Genotype-Matched Inactivated Newcastle Disease Virus (NDV) Vaccine Candidate Provides Better Protection against a Virulent Genotype XIII.2 Virus. Vaccines (Basel) 2023; 11:vaccines11051005. [PMID: 37243108 DOI: 10.3390/vaccines11051005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Newcastle disease (ND) is endemic in Bangladesh. Locally produced or imported live Newcastle disease virus (NDV) vaccines based on lentogenic virus strains, locally produced live vaccines of the mesogenic Mukteswar strain, as well as imported inactivated vaccines of lentogenic strains, are being used in Bangladesh under different vaccination regimens. Despite these vaccinations, frequent outbreaks of ND are being reported in Bangladesh. Here we compared the efficacy of booster immunization with three different vaccines in chickens that had been primed with two doses of live LaSota vaccine. A total of 30 birds (Group A) were primed with two doses of live LaSota virus (genotype II) vaccine at days 7 and 28, while 20 birds (Group B) remained unvaccinated. At day 60, birds of Group A were divided into three sub-groups, which received booster immunizations with three different vaccines; A1: live LaSota vaccine, A2: inactivated LaSota vaccine, and A3: inactivated genotype XIII.2 vaccine (BD-C161/2010 strain from Bangladesh). Two weeks after booster vaccination (at day 74), all vaccinated birds (A1-A3) and half of the unvaccinated birds (B1) were challenged with a genotype XIII.2 virulent NDV (BD-C161/2010). A moderate antibody response was observed after the primary vaccination, which substantially increased after the booster vaccination in all groups. The mean HI titers induced by the inactivated LaSota vaccine (8.0 log2/5.0 log2 with LaSota/BD-C161/2010 HI antigen) and the inactivated BD-C161/2010 vaccine (6.7 log2/6.2 log2 with LaSota/BD-C161/2010 HI antigen) were significantly higher than those induced by the LaSota live booster vaccine (3.6 log2/2.6 log2 with LaSota/BD-C161/2010 HI antigen). Despite the differences in the antibody titers, all chickens (A1-A3) survived the virulent NDV challenge, while all the unvaccinated challenged birds died. Among the vaccinated groups, however, 50% of the chickens in Group A1 (live LaSota booster immunization) shed virus at 5- and 7-days post challenge (dpc), while 20% and 10% of the chickens in Group A2 (inactivated LaSota booster immunization) shed virus at 3 and 5 dpc, respectively, and only one chicken (10%) in Group A3 shed virus at 5 dpc. In conclusion, the genotype-matched inactivated NDV booster vaccine offers complete clinical protection and a significant reduction in virus shedding.
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Affiliation(s)
- Ismail Hossain
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Jannatul Ferdous Subarna
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Congriev Kumar Kabiraj
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Jahan Ara Begum
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Rokshana Parvin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mathias Martins
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
- Texas A & M Veterinary Medical Diagnostic Laboratory, 483 Agronomy Rd., College Station, TX 77843-4471, USA
| | - Diego G Diel
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
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Islam R, Sultana N, Haque Z, Rafiqul Islam M. Effect of dietary dexamethasone on the morphologic and morphometric adaptations in the lymphoid organs and mortality rate in broilers. Vet Med Sci 2023. [PMID: 37067539 DOI: 10.1002/vms3.1139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 12/02/2022] [Accepted: 02/19/2023] [Indexed: 04/18/2023] Open
Abstract
BACKGROUND Thymus, bursa of Fabricius and spleen are the major lymphoid organs of avian species that plays a crucial role in their immunity. Though glucocorticoids are reportedly used as growth promoters, they also suppress the immune system. OBJECTIVES The objective of this study was to investigate the morphologic and morphometric adaptations in the lymphoid organs as well as the mortality rate in broilers in response to long-term treatment with dexamethasone (DEX). METHODS A total of 80 one-day-old broiler chicks (Cobb 500) were randomly divided into four homogenous groups (control - C and treatment groups - T1, T2, and T3). The treatment groups received DEX at the rate of 3, 5, and 7 mg/kg commercial feed. Samples, i.e. thymus, bursa of Fabricius, and spleen, were collected on 7, 14, 21, and 28 days of the experiment. Relative weight of the organs was calculated on each sampling day. The tissues were then processed and stained with haematoxylin and eosin stain for morphological and morphometric study. RESULTS The relative weight of lymphoid organs was found substantially (p < 0.05) less in the DEX-treated groups. Significant (p < 0.05) reduction in lobular size and the cortical-medullary ratio was observed in the thymus of the DEX-treated broilers. Follicular atrophy and massive depletion of lymphocytes were evident in the bursa of Fabricius. The mortality rate was also increased which was largely dependent on the dose and duration of DEX treatment. CONCLUSIONS The study results indicate that DEX treatment can alter the morphology and morphometry of lymphoid organs which might result in severe immunosuppression and increased mortality rate in broilers.
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Affiliation(s)
- Rafiqul Islam
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Nasrin Sultana
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Ziaul Haque
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Siddiqui M, Globig A, Hoffmann B, Rahman MM, Islam MR, Chowdhury EH. Development of cell culture based peste des petits ruminants (PPR) virus vaccine candidate from Bangladeshi isolates. J Virol Methods 2023; 314:114690. [PMID: 36775141 DOI: 10.1016/j.jviromet.2023.114690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
This study was conducted to develop a cell culture based PPR virus vaccine candidate using recent Bangladeshi strain of peste des petits ruminant's (PPR) virus. PPR virus was isolated from field outbreaks, confirmed by RT-PCR and used as viral inoculum for serial passaging in Vero cells for adaptation and attenuation. 60th serial passage had completed and RT-PCR and real time RT-PCR were done in every 5 passages for confirmation of PPR virus in tissue culture fluid (TCF). To assess the adaptation and attenuation cytopathology, virus titration, sequencing of both F and N genes and live animal experimentation were done. Different cellular alterations produced by PPR virus in infected Vero cells including syncytia formation, development of both intranuclear and intra cytoplasmic inclusion bodies and finally cell degradation are the indications of adaptation. The virus titre was found 2.5, 3.31, 3.55, 4.44, 4.71 and 6.5 Log10 TCID50/ml at 10th, 20th, 30th, 40th, 50th and 60th passages level respectively. In F gene sequence analysis it has been observed that few nucleotide (nt) and mino acid (aa) has been substituted as the effects of serial passaging of PPR virus in Vero cells. TCF at 60th passage level was found effective to produced protective antibody (Ab) titre in live animal experimentation. It is concluded that serially passaged and Vero cells adapted PPR virus TCF could be used as a vaccine candidate for further use to develop a potent & effective vaccine against PPR diseases.
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Affiliation(s)
- Msi Siddiqui
- Department of Anatomy & Histology, Faculty of Veterinary, Animal & Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh.
| | - Anja Globig
- Friedrich Loffler Institute, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany.
| | - Bernd Hoffmann
- Friedrich Loffler Institute, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, Germany.
| | - M M Rahman
- Office of the Director General, Bangladesh Islamic Foundation, Ministry of Religious Affairs, Govt. of the Peoples Republic of Bangladesh, Dhaka, Bangladesh.
| | - M R Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
| | - E H Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
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Bakhtiar SM, Islam MR, Ahmed MJ, Rahman A, Rafiq K. Assessment of Heavy Metals Contamination and Antimicrobial Drugs Residue in Broiler Edible Tissues in Bangladesh. Antibiotics (Basel) 2023; 12:antibiotics12040662. [PMID: 37107024 PMCID: PMC10135153 DOI: 10.3390/antibiotics12040662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
There are substantial public health consequences when hazardous heavy metal contaminants and antimicrobial drug residues are present in broiler edible tissues. This study aimed to assess the concentration of antimicrobial drugs and heavy metals residues in broiler meat, bones and edible composites (combinations of liver, kidney and gizzard). Samples were collected from different types of broiler farms, broiler wet meat markets and supermarkets, covering all five divisions of Bangladesh. The antimicrobial drug and heavy metal residues were analyzed by uHPLC and ICP-MS, respectively. In addition, a cross-sectional survey was conducted among broiler meat consumers in the study areas to evaluate their attitude towards the consumption of broiler meat. The survey clearly stated that broiler meat consumers in Bangladesh have a negative attitude toward the consumption of broiler meat, although all respondents reported to eat broiler meat regularly. The antibiotic with the highest prevalence of residues in broiler edible tissues was oxytetracycline, followed by doxycycline, sulphadiazine and chloramphenicol. On the other hand, all collected broiler edible tissues contained chromium and lead, followed by arsenic. The fact of the matter is that the antimicrobial drugs and heavy metals residues were found to be below the maximum residue limit (MRL), except for the lead content. In addition, the broiler meat samples from supermarkets had lower levels of antimicrobial drugs and heavy metals residue compared to the broiler meat collected from various types of farms and broiler wet meat markets. Irrespective of the source, broiler meat was found to contain antimicrobial drugs and heavy metals residues below the MRL, except for lead, suggesting that broiler meat is safe for human consumption. Therefore, raising public awareness regarding misconceptions about broiler meat consumption among consumers would be warranted.
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Islam MA, Lomax S, Doughty AK, Islam MR, Thomson PC, Clark CEF. Revealing the diversity of internal body temperature and panting response for feedlot cattle under environmental thermal stress. Sci Rep 2023; 13:4879. [PMID: 36966196 PMCID: PMC10039931 DOI: 10.1038/s41598-023-31801-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 03/17/2023] [Indexed: 03/27/2023] Open
Abstract
Core body temperature (CBT) regulation is crucial for mammalian wellbeing and survival. Cattle pant to dissipate excess heat to regulate CBT when ambient conditions exceed thermoneutral zones. However, to date, neither the variability in cattle heat response, the lagged response of CBT to thermal indices, nor the diurnal patterns of thermal indices, CBT and panting have been reported in the literature. We decomposed thermal indices, CBT and panting time-series data for 99 feedlot heifers across three discrete heat events into diurnal, trend and residual components. Both raw and decomposed data were analysed to explore the lagged CBT and panting responses and the association between series. We show ambient thermal conditions impact CBT with a 1-h lag despite a lag of between 1.5 to 3 h from raw data. Average individual panting scores were used to identify heat-susceptible and heat-tolerant cattle. Heat-susceptible cattle showed greater CBT (P < 0.01) between 8:00 and 23:00 and greater panting duration (P < 0.05) between 10:00 and 18:00 than heat-tolerant cattle under the same thermal conditions and these variations followed a similar pattern despite differences in cattle breed. This new information enables targeted amelioration and selection of individuals against heat susceptibility.
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Affiliation(s)
- M A Islam
- Livestock Production and Welfare Group, School of Life and Environmental Sciences, Sydney Institute of Agriculture, University of Sydney, Camden, New South Wales, 2570, Australia.
- Department of Dairy Science, Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - S Lomax
- Livestock Production and Welfare Group, School of Life and Environmental Sciences, Sydney Institute of Agriculture, University of Sydney, Camden, New South Wales, 2570, Australia
| | - A K Doughty
- Allflex Livestock Intelligence, Allflex Australia Pty Ltd., 33 Neumann Road, Capalaba, Queensland, 4157, Australia
| | - M R Islam
- Livestock Production and Welfare Group, School of Life and Environmental Sciences, Sydney Institute of Agriculture, University of Sydney, Camden, New South Wales, 2570, Australia
| | - P C Thomson
- Sydney School of Veterinary Science, University of Sydney, Camden, New South Wales, 2570, Australia
| | - C E F Clark
- Livestock Production and Welfare Group, School of Life and Environmental Sciences, Sydney Institute of Agriculture, University of Sydney, Camden, New South Wales, 2570, Australia
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Hossain I, Parvin R, Rahman MM, Begum JA, Chowdhury EH, Islam MR, Diel DG, Nooruzzaman M. Comparative pathogenicity of a genotype XXI.1.2 pigeon Newcastle disease virus isolate in pigeons and chickens. Microb Pathog 2023; 178:106068. [PMID: 36933579 DOI: 10.1016/j.micpath.2023.106068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/20/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Here, we performed molecular and pathogenic characterization of a Newcastle disease virus (NDV) isolate from pigeons in Bangladesh. Molecular phylogenetic analysis based on the complete fusion gene sequences classified the three study isolates into genotype XXI (sub-genotype XXI.1.2) together with recent NDV isolates obtained from pigeons in Pakistan (2014-2018). The Bayesian Markov Chain Monte Carlo analysis revealed that the ancestor of Bangladeshi pigeon NDVs and the viruses from sub-genotype XXI.1.2 existed in the late 1990s. Pathogenicity testing using mean embryo death time pathotyped the viruses as mesogenic, while all isolates carried multiple basic amino acid residues at the fusion protein cleavage site. Experimental infection of chickens and pigeons revealed no or minimum clinical signs in chickens, while a relatively high morbidity (70%) and mortality (60%) were observed in pigeons. The infected pigeons showed extensive and systemic lesions including hemorrhagic and/or vascular changes in the conjunctiva, respiratory and digestive system and brain, and atrophy in the spleen, while only mild congestion in the lungs was noticed in the inoculated chickens. Histologically, consolidation in the lungs with collapsed alveoli and edema around the blood vessels, hemorrhages in the trachea, severe hemorrhages and congestion, focal aggregation of mononuclear cells, and single hepatocellular necrosis in the liver, severe congestion, multifocal tubular degeneration, and necrosis, as well as mononuclear cell infiltration in the renal parenchyma, encephalomalacia with severe neuronal necrosis with neuronophagia were noticed in the brain in infected pigeons. In contrast, only slight congestion was found in lungs of the infected chickens. qRT-PCR revealed the replication of the virus in both pigeons and chickens; however, higher viral RNA loads were observed in oropharyngeal and cloacal swabs, respiratory tissues, and spleen of infected pigeons than the chickens. In conclusion, genotype XXI.1.2 NDVs are circulating in the pigeon population of Bangladesh since 1990s, produce high mortality in pigeons with pneumonia, hepatocellular necrosis, renal tubular degeneration, and neuronal necrosis in pigeons, and may infect chickens without overt signs of clinical disease and are likely to shed viruses via the oral or cloacal routes.
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Affiliation(s)
- Ismail Hossain
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Rokshana Parvin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mohammad Mijanur Rahman
- Department of Livestock Services, Ministry of Fisheries and Livestock, Krishi Khamar Sarak, Dhaka, Bangladesh
| | - Jahan Ara Begum
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Diego G Diel
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh; Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
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Khatun MM, Rahman M, Islam MJ, Haque SE, Adam IF, Chau Duc NH, Sarkar P, Haque MN, Islam MR. Socio-economic inequalities in undiagnosed, untreated, and uncontrolled diabetes mellitus in Bangladesh: is there a gender difference? Public Health 2023; 218:1-11. [PMID: 36933353 DOI: 10.1016/j.puhe.2023.01.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 11/13/2022] [Accepted: 01/31/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVES We aimed to determine: (1) the prevalence and socio-economic distribution of undiagnosed, untreated, and uncontrolled diabetes mellitus (DM); (2) the relationship between socio-economic status (SES) and undiagnosed, untreated, and uncontrolled DM; and (3) if this relationship is mediated by gender. STUDY DESIGN Cross-sectional nationally representative household-based survey. METHODS We used data from the Bangladesh Demographic Health Survey from 2017 to 18. Our findings were based on the responses of 12,144 individuals aged 18 years and older. As a measure of SES, we focused on standard of living (hereinafter referred to as wealth). The study's outcome variables were prevalence of total (diagnosed + undiagnosed), undiagnosed, untreated, and uncontrolled DM. We used three regression-based approaches-adjusted odds ratio, relative inequality index, and slope inequality index-to assess different aspects of SES differences in the prevalence of total, undiagnosed, untreated, and uncontrolled DM. We used logistic regression analysis to look at the adjusted association between SES and the outcomes after gender stratification to see whether gender status moderates the association between SES and the targeted outcomes. RESULTS In our sample analysis, the age-adjusted prevalence of total, undiagnosed, untreated, and uncontrolled DM was 9.1%, 61.4%, 64.7%, and 72.1%, respectively. Females had a higher prevalence of DM and undiagnosed, untreated, and uncontrolled DM than males. When compared to people in the poor SES group, people in the rich and middle SES groups had 2.60 times (95% confidence interval [CI] 2.05-3.29) and 1.47 times (95% CI 1.18-1.83) higher chance of developing DM. When compared to individuals in the poor SES group, those in the rich SES groups were 0.50 (95% CI 0.33-0.77) and 0.55 times (95% CI 0.36-0.85) less likely to have undiagnosed and untreated DM. CONCLUSIONS In Bangladesh, rich SES groups were more likely than poor SES groups to have DM, whereas poor SES groups with DM were less likely than rich SES groups to be aware of their disease and obtain treatment. The government and other concerned parties are urged by this study to pay more attention to developing suitable policy measures to reduce the risk of DM, particularly among rich SES groups, as well as targeted efforts to screen for and diagnose DM in socio-economically disadvantaged groups.
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Affiliation(s)
- M M Khatun
- Department of Population Science and Human Resource Development University of Rajshahi, Rajshahi 6205, Bangladesh
| | - M Rahman
- Department of Population Science and Human Resource Development University of Rajshahi, Rajshahi 6205, Bangladesh.
| | - M J Islam
- Griffith Criminology Institute, Griffith University, Mount Gravatt, QLD 4122, Australia
| | - S E Haque
- Uchicago Research Bangladesh, Bangladesh
| | - I F Adam
- Faculty of Public Health, University of Khartoum, Sudan
| | - N H Chau Duc
- Hue University of Medicine and Pharmacy, Hue University, Viet nam
| | - P Sarkar
- Dr. Wazed Research and Training Institute, Begum Rokeya University, Rangpur, Bangladesh
| | - M N Haque
- Department of Population Science and Human Resource Development University of Rajshahi, Rajshahi 6205, Bangladesh
| | - M R Islam
- Department of Population Science and Human Resource Development University of Rajshahi, Rajshahi 6205, Bangladesh
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Hossain MK, Islam MR, Sundaram RM, Bhuiyan MAR, Wickneswari R. Introgression of the QTL qSB11-1TT conferring sheath blight resistance in rice ( Oryza sativa) into an elite variety, UKMRC 2, and evaluation of its backcross-derived plants. Front Plant Sci 2023; 13:981345. [PMID: 36699836 PMCID: PMC9869143 DOI: 10.3389/fpls.2022.981345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Sheath blight (SB) is the most damaging fungal disease in rice caused by a soil-borne pathogenic fungus, Rhizoctonia solani Kuhn (R. solani). The disease resistance in rice is a complex quantitative trait controlled by a few major genes. UKMRC2 is a newly developed elite rice variety that possesses high yield potential but is susceptible to sheath blight disease indicating a huge risk of varietal promotion, mass cultivation, and large-scale adoption. The aim of our present study was the development of varietal resistance against R. solani in UKMRC2 to enhance its stability and durability in a wide range of environments and to validate the effects of an SB-resistance QTL on the new genetic background. METHODS In our study, we developed 290 BC1F1 backcross progenies from a cross between UKMRC2 and Tetep to introgress the QTL qSBR11-1TT into the UKMRC2 genetic background. Validation of the introgressed QTL region was performed via QTL analysis based on QTL-linked SSR marker genotyping and phenotyping against R. solani artificial field inoculation techniques. RESULTS AND DISCUSSION The QTL qSBR11-1TT was then authenticated with the results of LOD score (3.25) derived from composite interval mapping, percent phenotypic variance explained (14.6%), and additive effect (1.1) of the QTLs. The QTL region was accurately defined by a pair of flanking markers K39512 and RM7443 with a peak marker RM27360. We found that the presence of combination of alleles, RM224, RM27360 and K39512 demonstrate an improved resistance against the disease rather than any of the single allele. Thus, the presence of the QTL qSBR11-1TT has been validated and confirmed in the URMRC2 genetic background which reveals an opportunity to use the QTL linked with these resistance alleles opens an avenue to resume sheath blight resistance breeding in the future with marker-assisted selection program to boost up resistance in rice varieties.
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Affiliation(s)
- Md. Kamal Hossain
- Department of Genetics, School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Mohammad Rafiqul Islam
- International Rice Research Institute (IRRI), Bangladesh Country Office, Dhaka, Bangladesh
| | - Raman Meenakshi Sundaram
- Crop Improvement Section, Indian Council for Agricultural Research-Indian Institute of Rice Research (ICAR-IIRR), Rajendranagar, Hyderabad, India
| | - Md. Atiqur Rahman Bhuiyan
- Department of Genetics, School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Ratnam Wickneswari
- Department of Genetics, School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
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Hasan MZ, Nahar K, Sharif JU, Paul SC, Thakur AK, Mahmud A, Siddique NA, Islam MR, Paul GK. Serum Magnesium Level and It's Relation in Predicting Adverse In-Hospital Outcome in Patients with First Attack of Myocardial Infarction. Mymensingh Med J 2023; 32:65-72. [PMID: 36594303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Acute myocardial infarction (AMI) patients characterize a large proportion of admissions in coronary care unit and their management and risk stratification is of immense importance. Hypomagnesemia is a long-term risk factor for incident of both myocardial infarction and arrhythmia. We assessed whether serum magnesium levels at admission is associated with arrhythmias and in-hospital mortality in patients with acute myocardial infarction (AMI). The aim of the study was to evaluate the prognostic implications of serum magnesium level in patients with acute myocardial infarction. This cross-sectional observational study was conducted in the department of cardiology in Mymensingh Medical College Hospital from October 2017 to March 2019. Total 259 acute myocardial infarction patients were included considering inclusion and exclusion criteria. The sample population was divided into two groups: Group-I: Patients with acute myocardial infarction with serum magnesium ≥1.82mg/dl. Group-II: Patients with acute myocardial infarction with serum magnesium <1.82mg/dl. Serum magnesium level was measured on admission, and the incidence of in-hospital major cardiac events was assessed. In this study mean serum magnesium level of Group-I, Group-II were 2.21±0.14mg/dl, 1.60±0.15mg/dl respectively. It was statistically significant (p<0.05). In-hospital outcomes of the study group revealed that low risk group patients were uneventful outcome during hospitalization period, they had no any complication. In Group-I patient, 9(4.8%) were developed arrhythmias, 26(13.9%) were developed heart failure, 9(4.8%) were developed cardiogenic shock and 3(1.6%) were died and in Group-II patient, 44(61.10%) developed arrhythmias, 9(12.50%) were developed heart failure, 7(9.7%) were developed cardiogenic shock and 12(16.7%) were died out of them which was statistically significant (p<0.05). Mean duration of hospital stay of the study population according serum magnesium level was in Group-I, 4.27±0.68 days, in Group-II, 5.84±1.05 days which was statistically significant (p<0.05). In conclusion patient with serum magnesium level less than 1.82mg/dl increased the risk of in-hospital arrhythmia and death.
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Affiliation(s)
- M Z Hasan
- Dr Md Zunaid Hasan, Assistant Registrar, Department of Cardiology, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh; E-mail:
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Biswas PS, Ahmed MME, Afrin W, Rahman A, Shalahuddin AKM, Islam R, Akter F, Syed MA, Sarker MRA, Ifterkharuddaula KM, Islam MR. Enhancing genetic gain through the application of genomic selection in developing irrigated rice for the favorable ecosystem in Bangladesh. Front Genet 2023; 14:1083221. [PMID: 36911402 PMCID: PMC9992429 DOI: 10.3389/fgene.2023.1083221] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/18/2023] [Indexed: 02/24/2023] Open
Abstract
Increasing selection differential and decreasing cycle time, the rate of genetic improvement can be accelerated. Creating and capturing higher genetic with higher accuracy within the shortest possible time is the prerequisite for enhancing genetic gain for any trait. Comprehensive yield testing at multi-locations at early generations together with the shortest line fixation time can expedite the rapid recycling of parents in the breeding program through recurrent selection. Genomic selection is efficient in capturing high breeding value individuals taking additive genetic effects of all genes into account with and without extensive field testing, thus reducing breeding cycle time enhances genetic gain. In the Bangladesh Rice Research Institute, GS technology together with the trait-specific marker-assisted selection at the early generation of RGA-derived breeding lines showed a prediction accuracy of 0.454-0.701 with 0.989-2.623 relative efficiency over the four consecutive years of exercise. This study reports that the application of GS together with trait-specific MAS has expedited the yield improvement by 117 kg ha-1·year-1, which is around seven-fold larger than the baseline annual genetic gain and shortened the breeding cycle by around 1.5 years from the existing 4.5 years.
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Affiliation(s)
- Partha S Biswas
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - M M Emam Ahmed
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - Wazifa Afrin
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - Anisar Rahman
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - A K M Shalahuddin
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - Rafiqul Islam
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - Fahamida Akter
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - Md Abu Syed
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - Md Ruhul Amin Sarker
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
| | - K M Ifterkharuddaula
- Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh
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Hasan A, Bose P, Aktar MT, Haque ZF, Islam MR, Hossain MT, Siddique MP. groEL gene-based molecular detection and antibiogram profile of Riemerella anatipestifer from duck in Bangladesh. J Adv Vet Anim Res 2022; 9:684-693. [PMID: 36714514 PMCID: PMC9868785 DOI: 10.5455/javar.2022.i637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 05/07/2022] [Accepted: 11/15/2022] [Indexed: 01/13/2023] Open
Abstract
Objectives This study was designed to detect Riemerella anatipestifer through polymerase chain reaction (PCR) from duck farming areas of the Mymensingh and Sylhet divisions and to determine the antibiogram profile of the PCR-positive isolates using the disc diffusion method. Materials and Methods Fifty two samples were collected, comprising clinically sick (32 ducks) and dead ducks (20). PCR confirmation was accomplished, and consistent findings were observed, employing R. anatipestifer groEL (271-bp) gene as appropriate molecular markers. For further clarification, see R. anatipestifer specific PCR assay (546-bp) and gyrB-based PCR (162-bp) were also done. The disc diffusion method was followed for the antibiotic susceptibility test of the isolates against commonly used antibiotics. Results A total of 21 samples, 8 from clinically sick birds and 13 from dead birds, showed positive results in both conventional and molecular assays out of 52 samples. High occurrences were found in oropharyngeal swabs from sick ducks and the liver and heart from dead ducks. Antibiotic susceptibility testing revealed that the isolates were 100% resistant to penicillin G, cefradine, streptomycin, neomycin, gentamycin, meropenem, and erythromycin, but 100% sensitive to -cotrimoxazole, florfenicol, and levofloxacin. Conclusion For diverse duck-populated areas in Bangladesh, this study shows the severity of R. anatipestifer infection among ducks.
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Affiliation(s)
- Alamgir Hasan
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Palash Bose
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mst Tachhlima Aktar
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Zobayda Farzana Haque
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh, Bangladesh,Department of Nutritional Sciences, College of Human Sciences, Texas Tech University, Lubbock, TX, USA
| | | | | | - Mahbubul Pratik Siddique
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Chowdhury VP, Azmi IJ, Haque MA, Islam MR, Akter M, Mahmud S, Faruque ASG, Talukder KA. Evaluation of the impact of Shigella virulence genes on the basis of clinical features observed in patients with shigellosis. J Infect Dev Ctries 2022; 16:1835-1844. [PMID: 36753649 DOI: 10.3855/jidc.16783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 10/04/2022] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION Shigella continues to cause significant morbidity and mortality each year, mostly in under-five children living in developing countries. We investigated the association between Shigella virulence genes and shigellosis. METHODOLOGY We randomly selected 61 S. flexneri strains isolated from patients in Bangladesh between 2009 and 2013, and evaluated the presence of 140 MDa large-virulence-plasmid (p140), and 22 virulence genes including ipaH, ial, toxin, and T3SS-related genes. RESULTS We found p140 in 79% (n = 48) and ipaBCD in 90% (n = 55) strains, while seven strains were missing the p140. The prevalence of ial was 89%, ipgC and ipgE was 85%, and the prevalence for the remaining genes was < 85%. During the multivariate analysis, we found that instead of sen, the Shigella enterotoxin gene set along with several other virulence genes such as ipgA, icsB, ipgB1, spa15, and mxiC, were significantly influencing multiple clinical features relevant to shigellosis, including bloody stool, mucoid stool, and rectal straining. CONCLUSIONS We believe our model will help to determine the actual disease burden by directly looking for the genetic material in clinically suggestive patients, especially when detecting the causative organisms by traditional means is difficult.
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Affiliation(s)
| | - Ishrat Jahan Azmi
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research (icddr,b), Dhaka, Bangladesh
| | - Md Ahshanul Haque
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research (icddr,b), Dhaka, Bangladesh
| | | | - Mahmuda Akter
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research (icddr,b), Dhaka, Bangladesh
| | - Shahin Mahmud
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research (icddr,b), Dhaka, Bangladesh
| | - Abu Syed Golam Faruque
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research (icddr,b), Dhaka, Bangladesh
| | - Kaisar Ali Talukder
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research (icddr,b), Dhaka, Bangladesh
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Amin MR, Islam MR, Bhuiyan M, Islam MS, Islam F, Tuli HJ, Nawar A, Tabassum T, Fardous J, Hasan MJ. Sketch of 2018 dengue outbreak in a megacity, Bangladesh. Trop Med Health 2022; 50:80. [PMID: 36289528 PMCID: PMC9598007 DOI: 10.1186/s41182-022-00470-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/09/2022] [Indexed: 12/04/2022] Open
Abstract
Background Dengue has become a major public health threat in Bangladesh since 2000, when the first outbreak was reported. Each outbreak has distinct characteristics, and thus, the report of the outbreak helps to understand the disease process and subsequent clinical management of these patients. On that ground, the study was designed to sketch the clinico-epidemiological characteristics of the 2018 dengue outbreak in Bangladesh. Methods This hospital-based cross-sectional study was conducted in one of the largest public medical college hospitals and a single private hospital located in the southern and northern parts of the megacity of the country. A total of 297 confirmed dengue cases were assessed with a preformed pretested questionnaire. Clinico-epidemiological and laboratory parameters were reported along with sociodemographic details. Statistical analysis was performed with SPSS 20. Results Male patients were predominantly affected by dengue infection. The mean age of the patients was 31.24 ± 13.99 (SD) years, with a range from 2 to 85 years. Eighty-two percent of patients reported from the Dhaka metropolitan city. The highest percentage of cases (37.1%) was isolated from Bansree, Dhaka city, followed by Rampura (21.4%) and Khilgaon (6.2%). In addition to common symptoms, e.g., fever (90.6%), headache (90.6%), chills (81.8%), anorexia and vomiting (76.4%), backache, and redness of the eyes were two prominent symptoms that affected more than two-thirds of the study population. On the other hand, less common symptoms, such as cough, abdominal pain, and respiratory distress, were present in 39.7%, 33.7%, and 15.5% of patients, respectively. Overall, 17.6% of patients were hypotensive during admission, with a mean systolic blood pressure of 107.65 ± 18.17 (SD) mmHg. Other prominent signs were dehydration (80.5%) and rash (33%). Conclusion This outbreak was especially characterized by gastrointestinal symptoms, which were predominant along with other typical features.
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Affiliation(s)
- Mohammad Robed Amin
- grid.413674.30000 0004 5930 8317Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | | | - Muktadir Bhuiyan
- grid.413674.30000 0004 5930 8317Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Md. Shahnoor Islam
- grid.413674.30000 0004 5930 8317Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Fathema Islam
- grid.413674.30000 0004 5930 8317Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Habiba Jannatun Tuli
- grid.413674.30000 0004 5930 8317Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Afra Nawar
- grid.413674.30000 0004 5930 8317Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | | | - Jannatul Fardous
- Tropical and Infectious Disease Division, Tropical Disease and Health Research Center, Dhaka, Bangladesh
| | - Mohammad Jahid Hasan
- Tropical and Infectious Disease Division, Tropical Disease and Health Research Center, Dhaka, Bangladesh
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Islam R, Sultana N, Bhakta S, Haque Z, Hasan A, Siddique MP, Islam MR. Modulation of growth performance, gut morphometry, and cecal microbiota in broilers by clove (Syzygium aromaticum) and tulsi (Ocimum sanctum) supplementation. Poult Sci 2022; 102:102266. [PMID: 36370662 PMCID: PMC9660731 DOI: 10.1016/j.psj.2022.102266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
In an epoch of the growing risk of antibiotic resistance, there is a dire need to establish an effective novel feeding practice for broiler nutrition as an alternative to antibiotics. Hence, the aim of the current study was to evaluate the impact of clove powder and tulsi extract on the growth performance, gut morphologic and morphometric indices, and cecal microbial status of broiler, as an alternative to antibiotic growth promoters (AGPs). Sixty day-old chicks of Cobb-500 strain were randomly divided into 4 groups, each having 15 birds. Chicks of the control group (T0) were fed commercial broiler feed with no additional supplementation. The treatment groups were offered commercial broiler feed and received clove powder and tulsi extract with drinking water at the rate of 0.5% + 2% (T1), 1% + 3% (T2), and 1.5% + 4% (T3), respectively. Results showed a nonlinear relationship with the dosage of clove and tulsi. All the growth parameters substantially (P < 0.05) improved in T2 while T1 and T3 showed no significant improvement compared to T0. The final body weight was significantly (P < 0.05) higher in T2. Giblet and offal weights showed no noticeable differences except in the intestine and heart where intestine weight markedly (P < 0.05) decreased in T3 and heart weight significantly (P < 0.05) increased in T1 and T2. Clove and tulsi supplementation substantially improved the villus height and villus surface area of the small intestine in T2 while the large intestine remained mostly unaffected by the treatment. Cecal microbial status significantly improved in all the treatment groups having increased (P < 0.05) Lactobacillus spp. count and decreased (P < 0.05) E. coli count compared to T0. Based on the aforementioned findings, it can be concluded that the combination of clove and tulsi can improve the growth performance and gut health of broilers which is largely dose-dependent and might be supplied as a potential alternative to AGPs.
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Affiliation(s)
- Rafiqul Islam
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Nasrin Sultana
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
| | - Sonali Bhakta
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Ziaul Haque
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Alamgir Hasan
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mahbubul Pratik Siddique
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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Saha B, Khatun N, Azim N, Islam SA, Proteek MF, Islam MR, Begum FA, Biddut MA, Khan MK, Islam MR. Platelet Count as a Prognostic Factor in Stage IV Non-Small Cell Lung Cancer. Mymensingh Med J 2022; 31:937-946. [PMID: 36189536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Increase platelet count can accompany various cancers including lung cancer. This finding has recently been suggested to indicate poor prognosis. In patients with malignancies, thrombocytosis has previously been related disease stage, histological type and survival. In this study, the prevalence of thrombocytosis and the prognostic information provided by platelet count were analyzed in patients with stage IV Non-Small Cell Lung Cancer (NSCLC) with an aim to assess elevated platelet count as a prognostic factor in patients with stage IV NSCLC and to investigate whether there is relationship between thrombocytosis, other clinico-pathologic factors and median survival. This prospective observational study was conducted in National Institute of Cancer Research and Hospital (NICRH), Dhaka, Bangladesh from September 2019 to August 2020. A total of 108 patients were enrolled purposively. Detail history taking, thorough physical examination was done along with relevant investigations. Data were collected by semi structured questionnaire and analysis was done with the help of Statistical Package for Social Science (SPSS), version 21.0. The mean age of the patients was found 56.4±12.2 years with range from 35 to 75 years. Majority (79.6%) patients were male, 52.8% patients came from low income and 36.1% were farmer. Majority (40.7%) were symptomatic; in bed >50.0% of day. Almost two third (59.3%) had <5.0% weight loss. Almost three fourth (69.4%) had squamous cell carcinoma. At the time of first assessment 75(69.4%) patients had normal and 33(30.6%) had elevated platelet count level. Age, sex and histological type were statistically not significant between normal and elevated platelet count level groups. But performance status, weight loss were statistically significant (p<0.05) between two groups. According to univariate analysis, age, performance status at presentation, weight loss more than 10.0% for 3 months and platelet count prior the start of treatment were all significant predictors for the overall survival. In multivariate analysis age, performance status at presentation and initial thrombocytosis were independent prognostic determinants for overall survival. Median survival time was significantly higher for the normal platelet count group and elevated platelet count group (7.5 months versus 5.5 months) respectively (95% CI, 5.5-7.5), p<0.001. The frequency of thrombocytosis in patients with stage-IV NSCLC at first presentation was 30.6% and median survival time in these patients was significantly shorter compared in patients without thrombocytosis. These results concluded that an elevated platelet count could be a useful prognostic factor for survival in patients with stage-IV NSCLC.
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Affiliation(s)
- B Saha
- Dr Beauty Saha, Registrar, Department of Radiotherapy, Mymensingh Medical College Hospital, Mymensingh, Bangladesh; E-mail:
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Hassan SN, Tilottoma B, Begum S, Kabir S, Khan AH, Rahman RN, Ahmed MS, Chowdhury FQ, Islam MR. Ocular Manifestation and Correlation with CD4+ T Cell Count among Adult HIV/AIDS Patients in Bangladesh. Mymensingh Med J 2022; 31:779-789. [PMID: 35780364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Patients with HIV or AIDS suffer from wide varieties of complications that are related to infection. The eye as an organ is not spared from HIV-related manifestations. The ocular manifestations can be the presenting sign of a systemic infection in an otherwise asymptomatic HIV-positive person. The disease can have adnexal, anterior segment, posterior segment, orbital and neuro-ophthalmic manifestations. The objective of the study was to evaluate the ophthalmological manifestations among adult HIV infected patients of Bangladesh and co-relate the findings with CD-4+ T cell count. This cross sectional study was conducted in the department of Community Ophthalmology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from January 2013 to September 2015. Purposive sampling technique was applied to enroll the patients. Total 110 patients were enrolled regardless of their immunological status by inclusion and exclusion criteria. Relevant clinical evaluation including history & physical examinations, laboratory investigations and some ocular examinations like- visual acuity, slit lamp biomicroscopy, IOP, indirect ophthalmoscopy with +90D (diopter) and +20D were done. The age of the study population ranged from 20-58 years with mean±SD 37.63±8.16 years. Among the study population 67(60.9%) were male and 43(39.1%) were female. According to ART status, 58(52.7%) were on ART and 52(47.3%) were ART naive. The mean CD4+ T- cells count was 410±281.65 with minimum to maximum was 6-1266 cells/μl. Among them 53(48.2%) had HIV related ocular findings and 57(51.8%) had no HIV related ocular manifestation. In relation with CD+ T- cells count, highly significant relation was found with lower CD4+ T- cells count and ocular manifestation (p=0.001).
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Affiliation(s)
- S N Hassan
- Dr Shah-Noor Hassan, Associate Professor, Department of Ophthalmology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Nooruzzaman M, Hossain I, Rahman MM, Uddin AJ, Mustari A, Parvin R, Chowdhury EH, Islam MR. Comparative pathogenicity of infectious bursal disease viruses of three different genotypes. Microb Pathog 2022; 169:105641. [PMID: 35714848 DOI: 10.1016/j.micpath.2022.105641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/03/2022] [Accepted: 06/11/2022] [Indexed: 11/29/2022]
Abstract
Infectious bursal disease (IBD) is a highly immunosuppressive and often fatal viral disease of young chickens. The causal agent IBD virus (IBDV) is an avian Birnavirus having two genome segments that have evolved independently and contributed to the emergence of many genotypes with different pathogenic profile. The present study aimed at genetic and pathogenic characterization of IBDVs from Bangladesh. We performed phylogenetic analysis of 15 IBDV isolates recovered from field outbreaks in chickens during 2020-2021 and compared the pathogenicity of three selected isolates belonging to different genotypes on experimental infection in chickens. Out of 15 isolates, one was the typical vvIBDV of genotype A3B2, 13 were reassortant vvIBDV of genotype A3B3 having very virulent-like segment A and early Australian-like segment B, and the remaining one isolate was a classical virulent IBDV of A1aB1 genotype. A few amino acid substitutions were observed between the genotypes in four putative antigenic sites on VP2. In a comparative pathogenicity study, the typical vvIBDV isolate BD-25(A3B2) appeared to be the most virulent with 100% morbidity and 90% mortality, followed by the segment-reassortant vvIBDV isolate BD-28(A3B3) with 50% morbidity and 30% mortality. However, the gross and histopathological lesions in the bursa of Fabricius were similar. The classical virulent isolate BD-26(A1aB1) did not cause any clinical disease. In conclusion, three genotypes of IBDV are co-circulating in poultry of Bangladesh and the typical vvIBDV of A3B2 genotype was more virulent than the reassortant vvIBDV of A3B3 genotype. Further studies are required to assess the country-wide distribution of IBDV of different genotypes and the efficacy of the currently available vaccines in protecting chickens against different genotypes of IBDV in Bangladesh.
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Affiliation(s)
- Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Ismail Hossain
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mohammad Mijanur Rahman
- Department of Livestock Services, Ministry of Fisheries and Livestock, Krishi Khamar Sarak, Dhaka, Bangladesh
| | - Abm Jalal Uddin
- Department of Livestock Services, Ministry of Fisheries and Livestock, Krishi Khamar Sarak, Dhaka, Bangladesh
| | - Afrina Mustari
- Department of Physiology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Rokshana Parvin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
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Alam MA, Rahman M, Ahmed S, Jahan N, Khan MAA, Islam MR, Alsuhaibani AM, Gaber A, Hossain A. Genetic Variation and Genotype by Environment Interaction for Agronomic Traits in Maize (Zea mays L.) Hybrids. Plants 2022; 11:plants11111522. [PMID: 35684294 PMCID: PMC9182618 DOI: 10.3390/plants11111522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/27/2022] [Accepted: 06/02/2022] [Indexed: 11/16/2022]
Abstract
In order to develop high-yielding genotypes of adapted maize, multilocation trials of maize were performed including forty-five maize hybrids exploiting genetic variability, trait associations, and diversity. The experiments were laid out in an RCB design and data were recorded on eight yield and yield-contributing traits, viz., days to anthesis (AD), days to silking (SD), anthesis–silking interval (ASI), plant height (PH), ear height (EH), kernels per ear (KPE), thousand-kernel weight (TKW), and grain yield (GY). An analysis of variance (ANOVA) showed significant variation present among the different traits under study. The phenotypic coefficient of variance (PCV) showed a higher value than the genotypic coefficient of variance (GCV), indicating the environmental influence on the expression of the traits. High heritability coupled with high genetic advance was found for these traits, indicative of additive gene action. The trait associations showed that genotypic correlation was higher than phenotypic correlation. Based on genetic diversity, the total genotypes were divided into four clusters, and the maximum number of 16 genotypes was found in cluster IV. Among the eight yield and yield-contributing traits, PH, ASI, EH, and TKW were the important traits for variability creation and were mostly responsible for yield. Genotypes G5, G8, G27, G29, and G42 were in the top ranks based on grain yield over locations, while a few others showed region-centric performances; all these genotypes can be recommended upon validation for commercial release. The present findings show the existence of proper genetic variability and divergence among traits, and the identified traits can be used in a maize improvement program.
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Affiliation(s)
- Mohammad Ashraful Alam
- Spices Research Centre, Bangladesh Agricultural Research Institute, Bogura 5810, Bangladesh;
| | - Marufur Rahman
- Regional Station, Bangladesh Institute of Research and Training on Applied Nutrition, Rangapur 5470, Bangladesh;
| | - Salahuddin Ahmed
- Maize Breeding Division, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh;
| | - Nasrin Jahan
- Plant Genetic Resources Research Centre, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh;
| | - Mohammad Al-Amin Khan
- Regional Spices Research Centre, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh;
| | - Mohammad Rafiqul Islam
- Regional Agricultural Research Station, Bangladesh Agricultural Research Institute, Pabna 6620, Bangladesh;
| | - Amnah Mohammed Alsuhaibani
- Department of Physical Sport Science, College of Education, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Ahmed Gaber
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Akbar Hossain
- Department of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh
- Correspondence:
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Hossain MS, Ali S, Hossain M, Uddin SZ, Moniruzzaman M, Islam MR, Shohael AM, Islam MS, Ananya TH, Rahman MM, Rahman MA, Worth M, Mondal D, Mahmud ZH. ESBL Producing Escherichia coli in Faecal Sludge Treatment Plants: An Invisible Threat to Public Health in Rohingya Camps, Cox's Bazar, Bangladesh. Front Public Health 2022; 9:783019. [PMID: 34976932 PMCID: PMC8714839 DOI: 10.3389/fpubh.2021.783019] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 11/22/2021] [Indexed: 12/29/2022] Open
Abstract
Introduction: Human faecal sludge contains diverse harmful microorganisms, making it hazardous to the environment and public health if it is discharged untreated. Faecal sludge is one of the major sources of E. coli that can produce extended-spectrum β-lactamases (ESBLs). Objective: This study aimed to investigate the prevalence and molecular characterization of ESBL-producing E. coli in faecal sludge samples collected from faecal sludge treatment plants (FSTPs) in Rohingya camps, Bangladesh. Methods: ESBL producing E. coli were screened by cultural as well as molecular methods and further characterized for their major ESBL genes, plasmid profiles, pathotypes, antibiotic resistance patterns, conjugation ability, and genetic similarity. Results: Of 296 isolates, 180 were phenotypically positive for ESBL. All the isolates, except one, contained at least one ESBL gene that was tested (blaCTX−M−1, blaCTX−M−2, blaCTX−M−8, blaCTX−M−9, blaCTX−M−15, blaCTX−M−25, blaTEM, and blaSHV). From plasmid profiling, it was observed that plasmids of 1–211 MDa were found in 84% (151/180) of the isolates. Besides, 13% (24/180) of the isolates possessed diarrhoeagenic virulence genes. From the remaining isolates, around 51% (79/156) harbored at least one virulence gene that is associated with the extraintestinal pathogenicity of E. coli. Moreover, 4% (3/156) of the isolates were detected to be potential extraintestinal pathogenic E. coli (ExPEC) strains. Additionally, all the diarrhoeagenic and ExPEC strains showed resistance to three or more antibiotic groups which indicate their multidrug-resistant potential. ERIC-PCR differentiated these pathogenic isolates into seven clusters. In addition to this, 16 out of 35 tested isolates transferred plasmids of 32–112 MDa to E. coli J53 recipient strain. Conclusion: The present study implies that the faecal sludge samples examined here could be a potential origin for spreading MDR pathogenic ESBL-producing E. coli. The exposure of Rohingya individuals, living in overcrowded camps, to these organisms poses a severe threat to their health.
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Affiliation(s)
- Md Sakib Hossain
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Sobur Ali
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Monir Hossain
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - M Moniruzzaman
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | | | - Md Shafiqul Islam
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Md Mominur Rahman
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh
| | | | - Martin Worth
- WASH Section, United Nations Children's Fund, Dhaka, Bangladesh
| | - Dinesh Mondal
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
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Islam MR, Ahmed S, Mostafa MG, Khan L, Alam MM, Alam A, Ahmed MB, Rahman MA. Predictors of Malignancy in Thyroid Nodules. Mymensingh Med J 2022; 31:372-378. [PMID: 35383753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thyroid swellings are common clinical problem throughout the world and also in Bangladesh. Most of thyroid swellings are multinodular, but a good percentage is solitary thyroid nodule. There is no robust, feasible method for malignancy differentiation has not been well established. The study evaluated thyroid nodules for risk of malignancy and compared history, clinical, sonographic features and FNAC findings with histopathology. This was a cross sectional study on 160 consecutive subjects of thyroid nodules done in the department of ENT and Head Neck Surgery of Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh during from July 2018 to December 2019. All patients were admitted and diagnosed by detail history, clinical examination, investigations and underwent thyroidectomy. Detailed history, clinical examination, ultrasonographic finding and FNAC variables were documented retrospectively and a mathematical model was established for malignancy prediction. In this study mean age of the patients of thyroid nodules was 37.54±11.49 years and majority of the patients were within 21-40 years of age. Frequency of thyroid nodules is more in female with male female ratio 1:7. Most of the thyroid nodules appeared in this study within 0-2 years (61.9%). In this series of thyroid nodules constituted 88.1% firm, 8.8% hard, 3.1% cystic. Among the patients 89(55.6%) cases have solitary thyroid nodule and 71(44.4%) cases have multinodular goitre Majority of the nodules were warm 57.5% followed by cold 42.5%. FNAC showed nodular goitre 72.5%, Follicular neoplasm 1.3%, Papillary carcinoma of thyroid 7.5%, colloid goitre 9.4%, suspicious papillary carcinoma 3.8% and lymphocytic thyroiditis 1.3%. In this study out of 85 solid nodule, 69(81.18%) were benign and 16(18.82%) was malignant and out of 3 cystic nodule 3(100%) were benign. In this study most of the benign and malignant nodules were predominantly solid. Study showed the malignancy is significantly (p=0.001) more in solid than cystic nodules. Final diagnosis in this study was done on the basis of histopathological reports. Out of 160 patients, histopathologically benign lesion was 120(75%) and malignant was 40(25%). Among malignant cases 36(22.5%) cases were papillary carcinoma, 1 case was medullary carcinoma and 3 cases were follicular carcinoma.
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Affiliation(s)
- M R Islam
- Dr Md Rafiqul Islam, Associate Professor, ENT and Head Neck Surgery, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
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Islam R, Sultana N, Ayman U, Islam MR, Hashem MA. Role of steroid growth promoter on growth performance and meat quality traits in broiler. Poult Sci 2022; 101:101904. [PMID: 35523031 PMCID: PMC9079692 DOI: 10.1016/j.psj.2022.101904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/23/2022] [Accepted: 03/26/2022] [Indexed: 11/19/2022] Open
Abstract
Growth promoters are added with broiler feed to boost the overall feed efficiency and growth rate. The current study investigated the effect of dexamethasone (DEX)—a commonly used growth promoter—on the broiler growth rate, meat quality, and muscle biology. Four homogenous groups (20 chicks/group) of broiler one-day-old chicks were fed commercial broiler feed where the treatment groups received 3, 5, and 7 mg/kg of DEX with their diet for 28 d. Feed consumption and body weight were monitored on a daily basis. Muscle samples were collected on 7, 14, 21, and 28 d of the experiment to investigate meat quality and muscular biology. The residue of DEX in meat was detected using thin-layer chromatography. We observed that DEX had substantially decreased (P < 0.05) feed intake, feed efficiency, and overall weight gain in the broiler. While the weight of breast and thigh meat was decreased, the relative meat weight (meat/body weight) was increased significantly in chicks fed DEX. Simultaneously, body fat decreased while the percentage of fat increased significantly (P < 0.05) in the DEX groups. Contrariwise, DEX improved the investigated meat quality parameters with the potential threat of accumulation of DEX residue in the meat at a high dose (7 mg/kg). We also observed that DEX significantly increased the number of myofibers and decreased the cross-sectional area of myofibers. Based on these findings, we conclude that DEX reduces feed intake, feed efficiency, and growth rate, but might improve meat quality with a potential risk of residual DEX accumulation if fed at a high dose.
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Affiliation(s)
- Rafiqul Islam
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Nasrin Sultana
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
| | - Ummay Ayman
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Md Abul Hashem
- Department of Animal Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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Islam MR, Naveed SA, Zhang Y, Li Z, Zhao X, Fiaz S, Zhang F, Wu Z, Hu Z, Fu B, Shi Y, Shah SM, Xu J, Wang W. Identification of Candidate Genes for Salinity and Anaerobic Tolerance at the Germination Stage in Rice by Genome-Wide Association Analyses. Front Genet 2022; 13:822516. [PMID: 35281797 PMCID: PMC8905349 DOI: 10.3389/fgene.2022.822516] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/03/2022] [Indexed: 11/29/2022] Open
Abstract
Multiple stress tolerance at the seed germination stage is crucial for better crop establishment in the direct-seeded rice ecosystem. Therefore, identifying rice genes/quantitative trait loci (QTLs) associated with salinity and anaerobic tolerance at the germination stage is a prerequisite for adaptive breeding. Here, we studied 498 highly diverse rice accessions Xian (Indica) and Geng (Japonica), and six traits that are highly associated with salinity and anaerobic tolerance at germination stage were measured. A high-density 2.8M Single Nucleotide Polymorphisms (SNP) genotype map generated from the 3,000 Rice Genomes Project (3KRGP) was used for mapping through a genome-wide association study. In total, 99 loci harboring 117 QTLs were detected in different populations, 54, 21, and 42 of which were associated with anaerobic, salinity, and combined (anaerobic and salinity) stress tolerance. Nineteen QTLs were close to the reported loci for abiotic stress tolerance, whereas two regions on chromosome 4 (qSGr4a/qCL4c/qRI4d and qAGr4/qSGr4b) and one region on chromosome 10 (qRI10/qCL10/ qSGr10b/qBM10) were associated with anaerobic and salinity related traits. Further haplotype analysis detected 25 promising candidates genes significantly associated with the target traits. Two known genes (OsMT2B and OsTPP7) significantly associated with grain yield and its related traits under saline and anaerobic stress conditions were identified. In this study, we identified the genes involved in auxin efflux (Os09g0491740) and transportation (Os01g0976100), whereas we identified multistress responses gene OsMT2B (Os01g0974200) and a major gene OsTPP7 (Os09g0369400) involved in anaerobic germination and coleoptile elongation on chromosome 9. These promising candidates provide valuable resources for validating potential salt and anaerobic tolerance genes and will facilitate direct-seeded rice breeding for salt and anaerobic tolerance through marker-assisted selection or gene editing.
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Affiliation(s)
- Mohammad Rafiqul Islam
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shahzad Amir Naveed
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yue Zhang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhikang Li
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Agronomy, Anhui Agricultural University, Hefei, China.,Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Xiuqin Zhao
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Sajid Fiaz
- Department of Plant Breeding and Genetics, The University of Haripur, Haripur, Pakistan
| | - Fan Zhang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Zhichao Wu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhiqing Hu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Binying Fu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yingyao Shi
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Shahid Masood Shah
- Department of Biotechnology, COMSATS University Islamabad-Abbottabad Campus, Abbottabad, Pakistan
| | - Jianlong Xu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China.,Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Wensheng Wang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Agronomy, Anhui Agricultural University, Hefei, China.,National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, China
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Chowdhury EH, Kundu P, Begum JA, Chowdhury T, Rahman M, Khatun A, Saha SS, Nooruzzaman M, Parvin R, Islam MR. Peste des petits ruminants virus antibodies in domestic large ruminants in Bangladesh. J Infect Dev Ctries 2022; 16:369-373. [PMID: 35298434 DOI: 10.3855/jidc.15189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 08/20/2021] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION Peste des petits ruminants (PPR) is an important transboundary animal disease of small ruminants which causes serious damage to the livelihood and food security of millions of small-scale farmers. PPR is endemic in goats in Bangladesh since 1993. The aim of this study was to determine the seroprevalence of PPR in sheep, cattle, and buffaloes in Bangladesh. METHODOLOGY A total of 434 blood samples from sheep (n = 100), cattle (n = 190) and buffalo (n = 144) were collected aseptically. Sera were separated and antibody titer was determined using a commercially available c-ELISA kit. RESULTS The overall seroprevalence was 16% and 3.68% in sheep and cattle, respectively, while buffaloes had a considerably higher seroprevalence of 42.36%. The study suggests that buffaloes are more prone to the PPR virus (PPRV) infection and cattle. CONCLUSIONS This study provides serological evidence of PPRV infection in cattle and buffaloes. These results may warrant further studies to find out the role of large ruminants in transmitting PPRV infection to small ruminants and vice versa and inclusion of all domestic and wild ruminants for regular surveillance program.
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Affiliation(s)
- Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh.
| | - Preyangkar Kundu
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Jahan Ara Begum
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Tusar Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mushfiqur Rahman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Afia Khatun
- Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi, Bangladesh
| | - Shib Shankar Saha
- Department of Pathology and Parasitology, Patuakhali Science and Technology University, Barishal, Bangladesh
| | - Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Rokshana Parvin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Badruzzaman ATM, Rahman MM, Hasan M, Hossain MK, Husna A, Hossain FMA, Giasuddin M, Uddin MJ, Islam MR, Alam J, Eo SK, Fasina FO, Ashour HM. Semi-Scavenging Poultry as Carriers of Avian Influenza Genes. Life (Basel) 2022; 12:life12020320. [PMID: 35207607 PMCID: PMC8879534 DOI: 10.3390/life12020320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/29/2022] [Accepted: 02/04/2022] [Indexed: 02/05/2023] Open
Abstract
Ducks are the natural reservoir of influenza A virus and the central host for the avian influenza virus (AIV) subtype H5N1, which is highly pathogenic. Semi-scavenging domestic ducks allow for the reemergence of new influenza subtypes which could be transmitted to humans. We collected 844 cloacal swabs from semi-scavenging ducks inhabiting seven migratory bird sanctuaries of Bangladesh for the molecular detection of avian influenza genes. We detected the matrix gene (M gene) using real-time RT-PCR (RT-qPCR). Subtyping of the AIV-positive samples was performed by RT-qPCR specific for H5, H7, and H9 genes. Out of 844 samples, 21 (2.488%) were positive for AIV. Subtyping of AIV positive samples (n = 21) revealed that nine samples (42.85%) were positive for the H9 subtype, five (23.80%) were positive for H5, and seven (33.33%) were negative for the three genes (H5, H7, and H9). We detected the same genes after propagating the virus in embryonated chicken eggs from positive samples. Semi-scavenging ducks could act as carriers of pathogenic AIV, including the less pathogenic H9 subtype. This can enhance the pathogenicity of the virus in ducks by reassortment. The large dataset presented in our study from seven areas should trigger further studies on AIV prevalence and ecology.
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Affiliation(s)
- A T M Badruzzaman
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh; (A.T.M.B.); (M.M.R.); (M.K.H.); (A.H.); (F.M.A.H.)
| | - Md. Masudur Rahman
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh; (A.T.M.B.); (M.M.R.); (M.K.H.); (A.H.); (F.M.A.H.)
| | - Mahmudul Hasan
- National Reference Laboratory for Avian Influenza, Bangladesh Livestock Research Institute, Savar, Dhaka 1340, Bangladesh; (M.H.); (M.G.)
| | - Mohammed Kawser Hossain
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh; (A.T.M.B.); (M.M.R.); (M.K.H.); (A.H.); (F.M.A.H.)
| | - Asmaul Husna
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh; (A.T.M.B.); (M.M.R.); (M.K.H.); (A.H.); (F.M.A.H.)
| | - Ferdaus Mohd Altaf Hossain
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh; (A.T.M.B.); (M.M.R.); (M.K.H.); (A.H.); (F.M.A.H.)
| | - Mohammed Giasuddin
- National Reference Laboratory for Avian Influenza, Bangladesh Livestock Research Institute, Savar, Dhaka 1340, Bangladesh; (M.H.); (M.G.)
| | - Md Jamal Uddin
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh;
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
| | - Mohammad Rafiqul Islam
- Livestock Division, Bangladesh Agricultural Research Council, Farmgate, Dhaka 1215, Bangladesh;
| | - Jahangir Alam
- Animal Biotechnology Division, National Institute of Biotechnology, Savar, Dhaka 1349, Bangladesh;
| | - Seong-Kug Eo
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan 54596, Korea;
| | - Folorunso Oludayo Fasina
- Emergency Centre for Transboundary Animal Diseases, Food and Agriculture Organization of the United Nations (ECTAD-FAO), United Nations Office in Nairobi (UNON), UN Avenue, Gigiri, Nairobi 00100, Kenya;
- Department of Veterinary Tropical Diseases, University of Pretoria, Onderstepoort 0110, South Africa
| | - Hossam M. Ashour
- Department of Integrative Biology, College of Arts and Sciences, University of South Florida, St. Petersburg, FL 33701, USA
- Correspondence:
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Rafiq K, Tofazzal Hossain M, Ahmed R, Hasan MM, Islam R, Hossen MI, Shaha SN, Islam MR. Role of Different Growth Enhancers as Alternative to In-feed Antibiotics in Poultry Industry. Front Vet Sci 2022; 8:794588. [PMID: 35224074 PMCID: PMC8873819 DOI: 10.3389/fvets.2021.794588] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/23/2021] [Indexed: 11/22/2022] Open
Abstract
The poultry industry has grown so fast alongside the irrational use of antibiotics to maximize profit and make the production cost-effective during the last few decades. The rising and indiscriminate use of antibiotics might result in the deposition of residues in poultry food products and in the development of resistance to these drugs by microorganisms. Therefore, many diseases are becoming difficult to treat both in humans and animals. In addition, the use of low-dose antibiotics as growth enhancer results in antibiotic residues in food products, which have detrimental effects on human health. On the other hand, many studies have shown that antibiotics administered to poultry and livestock are poorly absorbed through the gut and usually excreted without metabolism. These excreted antibiotics eventually accumulate in the environment and enter the human food chain, resulting in the bioaccumulation of drug residues in the human body. In this regard, to find out alternatives is of paramount importance for the production of safe meat and egg. Therefore, in recent years, much research attention was disarticulated toward the exploration for alternatives to antibiotic as in-feed growth enhancers after its ban by the EU. As a result, probiotics, prebiotics, phytobiotics, spirulina, symbiotic, and their combination are being used more frequently in poultry production. Feed additives therefore gained popularity in poultry production by having many advantages but without any residues in poultry products. In addition, numerous studies demonstrating that such biological supplements compete with antimicrobial resistance have been conducted. Therefore, the purpose of this review article was to highlight the advantages of using biological products instead of antibiotics as poultry in-feed growth enhancers to enhance the production performance, reduce intestinal pathogenic bacteria, and maintain gut health, potentiating the immune response, safety, and wholesomeness of meat and eggs as evidence of consumer protection, as well as to improve the safety of poultry products for human consumption.
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Affiliation(s)
- Kazi Rafiq
- Department of Pharmacology, Bangladesh Agricultural University, Mymensingh, Bangladesh
- *Correspondence: Kazi Rafiq
| | | | - Rokeya Ahmed
- Department of Pharmacology, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Md. Mehedi Hasan
- Department of Pharmacology, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Rejaul Islam
- Department of Pharmacology, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Md. Ismail Hossen
- Livestock Division, Bangladesh Agricultural Research Council, Dhaka, Bangladesh
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Islam MM, Islam J, Islam MS, Ahamed T, Islam MR, Khatun MM, Islam MA. Duck virus enteritis (duck plague) outbreak in an Australian black swan ( Cygnus atratus) flock at safari park in Bangladesh: A case report. J Adv Vet Anim Res 2022; 8:557-562. [PMID: 35106294 PMCID: PMC8757670 DOI: 10.5455/javar.2021.h545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 11/23/2022] Open
Abstract
Objective: Duck virus enteritis is a severe viral disease that kills ducks and swans worldwide. The clinical manifestations, gross pathology, molecular detection, and characterization of the duck virus enteritis virus (DVEV) in Australian black swans at a safari park in Bangladesh were described in this case report. Materials and Methods: On a safari park in Bangladesh, an Australian black swan flock exhibited clinical signs of anorexia, greenish watery diarrhea, increased thirst, partial paralysis, and death. Postmortem examinations of deceased swans revealed extensive pathological abnormalities in the trachea, liver, and spleen. To isolate DVEV, a viral inoculum produced from the liver and spleen of dead swans was implanted into 9–13-day-old embryonated duck eggs via the chorioallantoic membrane (CAM) route. DVEV was confirmed using a polymerase chain reaction (PCR) assay. Phylogenetic analysis was used to determine the genetic relationship between the DVEV isolates from Australian black swans, and 16 DVEV isolates previously described in the GenBank. Results: Hemorrhage was noted in the annular ring of the trachea, as well as an enlarged and hemorrhagic liver and spleen. The PCR assay amplified a 446-bp fragment of the DVEV DNA polymerase gene in the liver, spleen, and CAM homogenates. The phylogenetic analysis found that the DVEV isolates from swans were comparable to those from Bangladesh, India, Vietnam, China, Germany, the USA, and Egypt. Conclusion: According to the findings of this study, the DVEV was the cause of illness and mortality in an Australian black swan flock.
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Affiliation(s)
- Md Mohirul Islam
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Jahidul Islam
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Md Sadequl Islam
- Department of Anatomy and Histology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Tanvir Ahamed
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | | | - Mst Minara Khatun
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Md Ariful Islam
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Amin MR, Hasan MJ, Khan MAS, Raf MA, Islam MR, Shams T, Islam MJ, Kabir ASML, Sharif M, Gozal D. Correction to: Chikungunya outbreak in Bangladesh (2017): sociodemographic and clinical characteristics of patients from three hotspots. Trop Med Health 2022; 50:10. [PMID: 35074006 PMCID: PMC8785541 DOI: 10.1186/s41182-022-00403-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Mohammad Robed Amin
- Department of Medicine, Dhaka Medical College and Hospital-2, Room No 502, Dhaka, Bangladesh
| | | | | | - Md Abdur Raf
- Pi Research Consultancy Center, Dhaka, Bangladesh
| | | | - Tarek Shams
- Department of Medicine, Cox's Bazar Medical College, Cox's Bazar, Bangladesh
| | | | | | - Mohiuddin Sharif
- Department of Medicine, Dhaka Medical College and Hospital-2, Dhaka, Bangladesh
| | - David Gozal
- Department of Child Health, MU Women's and Children's Hospital University of Missouri School of Medicine, Columbia, MO, USA
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Islam MR, Hoque MJ, Uddin MN, Dewan A, Haque NB, Islam MT, Islam MH, Hasan MA. Antimicrobial Resistance of E Coli Causing Urinary Tract Infection in Bangladesh. Mymensingh Med J 2022; 31:180-185. [PMID: 34999700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Rapid spread of multidrug resistant microorganisms is a matter of great concern throughout the glove including Bangladesh. The objective was to identify the causative organisms for urinary tract infection (UTI) and their sensitivity patterns to antibiotics. This descriptive cross-sectional study was conducted on patients admitted with UTI (n=60) at a tertiary level hospital in Dhaka, Bangladesh from March 2019 to September 2019. Data were collected through clinical record reviews. Data of all these 60 cases were analyzed for socio-demographic characteristics. Of the 60 patients, culture and sensitivity report was available for 42 patients. Therefore, data were further analyzed for these 42 cases. Median age of patients was 35 years and 80% were female. The main organisms isolated from urine culture of UTI patients were E. coli (64%), Klebsiella (12%) and Enterococci species (10%). Susceptibility to antibiotics was analyzed only for E. coli (n=27) since the number of isolates of other organisms were small. E. coli was found to be resistant to most of the first- and second-line antibiotics, such as Amoxicillin (100%), Amoxyclav (72%), Co-trimoxazole (89%), Nalidixic acid (78%), Ceftazidim (94%), Ceftriaxone (73%), Cefuroxime (100%), Ciprofloxacin (59%), Cephotaxime (80%), Cefixime (100%) and Moxifloxacin (100%). E. coli was the predominant organism responsible for UTI and was resistant to most of the first- and second-line antibiotics. Immediate action is needed to develop empirical guideline for empirical management of UTI and establish surveillance system for monitoring.
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Affiliation(s)
- M R Islam
- Dr Mohammad Rafiqul Islam, Associate Professor of Medicine, Shaheed Suhrawardy Medical College, Dhaka, Bangladesh; E-mail:
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Hasan I, Rubayet Jahan M, Nabiul Islam M, Rafiqul Islam M. Effect of 2400 MHz mobile phone radiation exposure on the behavior and hippocampus morphology in Swiss mouse model. Saudi J Biol Sci 2022; 29:102-110. [PMID: 35002399 PMCID: PMC8716897 DOI: 10.1016/j.sjbs.2021.08.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/23/2021] [Accepted: 08/19/2021] [Indexed: 12/14/2022] Open
Abstract
Electromagnetic field exposure to the nervous system can cause neurological changes. The effects of extremely low-frequency electromagnetic fields, such as second-generation and third-generation radiation, have been studied in most studies. The current study aimed to explore fourth-generation cellular phone radiation on hippocampal morphology and behavior in mice. Swiss albino male mice (n = 30) were randomly categorized into 3 groups; control, 40 min, and 60 min exposure to 2400 MHz radiofrequency electromagnetic radiation (RF-EMR) daily for 60 days. The control mice were housed in the same environments but were not exposed to anything. Anxiety-like behaviors were tested using the elevated plus-maze. For histological and stereological examination, the brain was dissected from the cranial cavity. On Cresyl violet stained brain slices, the number of pyramidal neurons in the cornu ammonis of the hippocampus were counted. In exposed mice compared to control mice, a significant increase in anxiety-like behavior has been observed. Histological observations have shown many black and dark blue cytoplasmic cells with shrunken morphology degenerative alterations in the neuronal hippocampus in the radiation exposed mice. In the RF-EMR mouse hippocampus, stereological analyses revealed a significant decrease in pyramidal and granule neurons compared to controls. Our findings suggest that 2400-MHz RF-EMR cell phone radiation affects the structural integrity of the hippocampus, which would lead to behavioral changes such as anxiety. However, it alerts us to the possible long-term detrimental effects of exposure to RF-EMR.
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Affiliation(s)
- Imam Hasan
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mir Rubayet Jahan
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.,Division of Neuroanatomy, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube 755-8505, Japan
| | - Md Nabiul Islam
- Division of Neuroanatomy, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube 755-8505, Japan
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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Islam MR, Hasan I, Monisha NZ, Afrin M. Gross and Histomorphological Study of the Ovary and Oviduct of Turkey Hen with Especial Emphasis on the Sperm-Host Gland. Iraqi J Vet Med 2021. [DOI: 10.30539/ijvm.v45i1.1033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Turkey bird is one of the popular poultry species which is reared primarily for meat production and considered as one of the major sources of animal protein. With such importance of this species, this study was designed to investigate the gross and histomorphology of the ovary and oviduct with especial emphasis on sperm-host glands of the turkey hen involving ten mature female turkeys (Meleagris gallopavo). The present study highlighted the distribution pattern of sperm-host glands (SHGs) in the oviduct of turkey hen that has a potential role in producing a fertile egg in poultry industries. The oviduct of turkey consists of the infundibulum, magnum, isthmus, uterus, and vagina which are sole distributors for making nutrition enriched egg. The tissue samples were collected from the ovary, different segments of the oviduct and especially uterovaginal junction (UVJ) and infundiomagnal junction of the oviduct. The ovaries and the oviducts were dissected and fixed in Bouins solution and processed for a light microscopic study. Histologically, the left ovary of turkey consisted of an outer cortex and inner medulla, with different stages of follicles. In all areas of the oviduct except the infundibulum and vagina, the tunica mucosa epithelium was lined with ciliated pseudo stratified columnar epithelium, and the lamina propria-submucosa contained branched tubular glands. Sperm-storage tubules were observed in the uterovaginal junction and infundibulo-magnum junction. These tubules were mostly branched, slightly coiled and extended into the lamina propria from the bases of the mucosal folds. These glands had proximal and distal parts; the proximal part was lined by pseudostratified columnar epithelium and distal part by non-ciliated simple columnar epithelium. The number of sperm host glands was more at uterovaginal junction than infundibulomagnal junction. The sperm-host glands might play a functional role in the storage and release of spermatozoa from the SHGs in response to oviposition or ovulation. The results would help poultry scientists and farmers in developing effective disease control and growth strategies.
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Hossain MJ, Rahman SMA, Emran TB, Mitra S, Islam MR, Dhama K. Recommendation and Roadmap of Mass Vaccination against Coronavirus Disease 2019 Pandemic in Bangladesh as a Lower-Middle-Income Country. Arch Razi Inst 2021; 76:1815-1822. [PMID: 35546989 DOI: 10.22092/ari.2021.356357.1824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 11/10/2021] [Indexed: 10/15/2022]
Abstract
Low-income countries (LICs) and lower-middle-income countries (LMICs) are still deprived of the optimum doses of coronavirus disease 2019 (COVID-19) vaccines for their population, equal access and distribution, as well as mass immunization roadmaps to be implemented for achieving herd immunity and protection from the ongoing pandemic. In this short report, we are interacting with the world public health experts, as well as national and global leaders for warranting the mass vaccination drive to be more progressive against COVID-19 with equitable access of vaccines to LICs or LMICs to save the lives of the poorest country people and refugees. From several scientific databases, such as Google Scholar, PubMed, as well as national and international news websites, the data were collected data by utilizing appropriate keywords regarding the topic. Bangladesh might be exemplified in this brief communication as the representative of LMIC. As of October 14, 2021, 48% of the world's people have received at least one dose of the COVID-19 vaccine. In contrast, only 2.5% of people from LICs have come in under COVID-19 vaccination for at least a single shot. Both LICs and LMICs need far more vision and ambition, including political, administrative, and diplomatic progress along with enhancing the vaccination drive for their population to be immunized through simultaneous mass vaccination progress of other countries with implementing public health safety measures against the COVID-19 pandemic.
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Affiliation(s)
- M J Hossain
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road Dhanmondi, Dhaka-1205, Bangladesh
| | - S M A Rahman
- Department of Clinical Pharmacy and Pharmacology, Faculty of Pharmacy, University of Dhaka, Dhaka-1000, Bangladesh
| | - T B Emran
- Department of Pharmacy, BGC Trust University, Chittagong-4381, Bangladesh
| | - S Mitra
- Department Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka-1000, Bangladesh
| | - M R Islam
- Department of Pharmacy, University of Asia Pacific, 74/A, Green Road, Farmgate, Dhaka 1205, Bangladesh
| | - K Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
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Nooruzzaman M, Akter MN, Begum JA, Begum S, Parvin R, Giasuddin M, Islam MR, Lamien CE, Cattoli G, Dundon WG, Chowdhury EH. Molecular insights into peste des petits ruminants virus identified in Bangladesh between 2008 and 2020. Infect Genet Evol 2021; 96:105163. [PMID: 34848354 DOI: 10.1016/j.meegid.2021.105163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
An in-depth knowledge of the molecular evolution of the peste des petits ruminants virus (PPRV) is critical for the success of the current global eradication program. For this reason, a molecular evolutionary analysis of PPRVs circulating in Bangladesh over a decade (2008-2020) was performed. The complete genome sequencing of three PPRV isolates from 2008 (BD2), 2015 (BD12) and 2017 (BD17) as well as full length nucleocapsid (N), matrix (M) and fusion (F) gene sequencing of seven more samples from 2015 to 2020 was performed. Phylogenetic analysis classified all ten PPRVs from Bangladesh as members of lineage IV and showed that they were closely related to PPRV strains detected in China and Tibet during 2007-2008, and India during 2014-2018. Time scale Bayesian Maximum Clade Credibility (MCC) phylogenetic analysis of the three complete genomes revealed a mean Time to Most Recent Common Ancestor (TMRCA) of 2000. Comparative deduced amino acid residue analysis at various functional motifs of PPRVs related to virus structure and function, virulence and host adaptation, receptor binding sites and polymerase activity revealed conserved residues among the PPRVs from Bangladesh. In total sixteen epitopes were predicted from four immunogenic proteins i.e. N, M, F and haemagglutinin (H). Interestingly, the predicted epitopes from the N and M proteins shared conserved epitopes with two vaccine strains currently being used, indicating that the strains from Bangladesh could be potentially used as alternative local vaccines.
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Affiliation(s)
- Mohammed Nooruzzaman
- Department of Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mst Nazia Akter
- Department of Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Jahan Ara Begum
- Department of Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Shahana Begum
- Department of Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; Department of Physiology, Faculty of Veterinary, Animal & Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh
| | - Rokshana Parvin
- Department of Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Md Giasuddin
- Animal Health Division, Bangladesh Livestock Research Institute, Savar, Dhaka, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Charles E Lamien
- Animal Production and Health Laboratory, Joint FAO/IAEA Division, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Giovanni Cattoli
- Animal Production and Health Laboratory, Joint FAO/IAEA Division, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - William G Dundon
- Animal Production and Health Laboratory, Joint FAO/IAEA Division, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
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Hossain MJ, Soma MA, Islam MR, Emran TB. Urgent call for actionable measures to fight the current co-epidemic of dengue burden during the SARS-CoV-2 delta variant era in South-Asia. Ethics Med Public Health 2021; 19:100726. [PMID: 34632034 PMCID: PMC8486616 DOI: 10.1016/j.jemep.2021.100726] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/26/2021] [Indexed: 12/20/2022]
Affiliation(s)
- M J Hossain
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi, 1205 Dhaka, Bangladesh
| | - M A Soma
- Department of Pharmacy, University of Asia Pacific, 74/A Green Road, Farmgate, 1205 Dhaka, Bangladesh
| | - M R Islam
- Department of Pharmacy, University of Asia Pacific, 74/A Green Road, Farmgate, 1205 Dhaka, Bangladesh
| | - T B Emran
- Department of Pharmacy, BGC Trust University Bangladesh, 4381 Chittagong, Bangladesh
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Rahman MM, Uddin S, Jahangir MMR, Solaiman ZM, Alamri S, Siddiqui MH, Islam MR. Integrated Nutrient Management Enhances Productivity and Nitrogen Use Efficiency of Crops in Acidic and Charland Soils. Plants (Basel) 2021; 10:plants10112547. [PMID: 34834910 PMCID: PMC8621362 DOI: 10.3390/plants10112547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/12/2021] [Accepted: 11/18/2021] [Indexed: 05/30/2023]
Abstract
Integrated Plant Nutrient System (IPNS) is practiced worldwide to maintain soil quality. Two field experiments were conducted in 2019 and 2020 in acidic and charland soils to assess the impact of different manures, viz., poultry manure (PM), vermicompost (VC), compost (OF), rice husk biochar (RHB), poultry manure biochar (PMB)-based IPNS, and dolomite over control on productivity and nitrogen use efficiency (NUE) of the Mustard-Boro-Transplanted Aman and Maize-Jute-Transplanted Aman cropping patterns, and on soil properties. The experiments were laid out in a randomized complete block design with four replications. The results showed that IPNS treatments significantly improved soil aggregate properties and total nitrogen in acidic soil, and bulk density in charland soil. In both years, IPNS treatments increased system productivity from 55.4 to 82.8% in acidic soil and from 43.3 to 115.4% in charland soil over that of control. IPNS and dolomite treatments increased nitrogen uptake from 35.5 to 105.7% over that of control and NUE in both soils in 2019 and 2020. PMB- and OF-based INPS treatments exhibited superior performances in both soils, and the impact was more prominent in 2020. Therefore, PMB- and OF-based IPNS can be recommended for maximizing system productivity and NUE with concurrent improvement of physicochemical properties of acidic and charland soils.
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Affiliation(s)
- Mohammad Mojibur Rahman
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.M.R.); (S.U.); (M.M.R.J.)
- Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh
| | - Shihab Uddin
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.M.R.); (S.U.); (M.M.R.J.)
| | | | - Zakaria M. Solaiman
- UWA School of Agriculture and Environment, The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia;
| | - Saud Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia; (S.A.); (M.H.S.)
| | - Manzer H. Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia; (S.A.); (M.H.S.)
| | - Mohammad Rafiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.M.R.); (S.U.); (M.M.R.J.)
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Hasan MJ, Tabassum T, Sharif M, Khan MAS, Bipasha AR, Basher A, Islam MR, Amin MR. Comparison of clinical manifestation of dengue fever in Bangladesh: an observation over a decade. BMC Infect Dis 2021; 21:1113. [PMID: 34715814 PMCID: PMC8555248 DOI: 10.1186/s12879-021-06788-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 10/13/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The clinical presentation of dengue fever had been observed to change with time since its first outbreak in 2000 in Bangladesh. This report showed the clinical presentation of the 2019 outbreak in Bangladesh along with its comparison to previous outbreaks witnessed in this region. METHODS This hospital-based cross-sectional study was conducted in one of the largest tertiary care hospitals in Dhaka city. A total of 553 laboratory-confirmed and 194 probable dengue cases were interviewed. The clinical manifestation of the confirmed cases of the current outbreak was compared with three of the outbreak reports retrieved from the databases. R version 3.6.3 was used for data analysis. RESULTS Among the confirmed cases, two-thirds were male (63.2%) and the average age was 27(± 11) years. Positive tests for NS1 and IgM were present in 99.6% (n = 525/527) and 82.6% (n = 38/46) of the cases, respectively. Thrombocytopenia was present in 66.1% of cases. Fever (100%) was common for all. Gastrointestinal (GIT) features, including abdominal pain (86.5%), anorexia and/or vomiting (69.6%), and Diarrhea (> 3 motions/day) (26.2%) were more frequent than typical rash and other pain symptoms. Hypotension was present in approximately a quarter of patients (25%). GIT features (anorexia, nausea, and/or vomiting) and hypotension were more common among adult participants while bleeding manifestation (melena and vaginal bleeding, p = 0.009 & 0.032) was more frequent in pediatric patients. Compared to outbreaks of 2008, 2016, and 2018, increasing trends in GIT symptoms e.g. anorexia, abdominal pain, and diarrhea were observed. While a negative trend in hemorrhagic manifestations (skin rash, melena, and conjunctival hemorrhage/hemorrhagic sclera) and arthralgia/joint pain were found. CONCLUSION The present outbreak was noticeably characterized by GIT symptoms and hypotension in addition to the typical clinical features like rash and pain symptoms. An increasing trend in GIT features and decreasing trend in hemorrhagic manifestations was noted over the last decade of dengue outbreaks.
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Affiliation(s)
| | | | - Mohiuddin Sharif
- Department of Medicine, Dhaka Medical College and Hospital-2, Dhaka, Bangladesh
| | | | | | - Ariful Basher
- BSMMU, OSD, Directorate General of Health Service, Dhaka, Bangladesh
| | | | - Mohammad Robed Amin
- Department of Medicine, Dhaka Medical College and Hospital-2, Dhaka, Bangladesh
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Nooruzzaman M, Barman LR, Mumu TT, Chowdhury EH, Dimitrov KM, Islam MR. A Pigeon-Derived Sub-Genotype XXI.1.2 Newcastle Disease Virus from Bangladesh Induces High Mortality in Chickens. Viruses 2021; 13:v13081520. [PMID: 34452385 PMCID: PMC8402815 DOI: 10.3390/v13081520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/16/2021] [Accepted: 07/29/2021] [Indexed: 01/23/2023] Open
Abstract
Newcastle disease virus (NDV) is a significant pathogen of poultry; however, variants also affect other species, including pigeons. While NDV is endemic in Bangladesh, and poultry isolates have been recently characterized, information about viruses infecting pigeons is limited. Worldwide, pigeon-derived isolates are commonly of low to moderate virulence for chickens. Here, we studied a pigeon-derived NDV isolated in Bangladesh in 2010. To molecularly characterize the isolate, we sequenced its complete fusion gene and performed a comprehensive phylogenetic analysis. We further studied the biological properties of the virus by estimating mean death time (MDT) and by experimentally infecting 5-week-old naïve Sonali chickens. The studied virus clustered in sub-genotype XXI.1.2 with NDV from pigeons from Pakistan isolated during 2014–2018. Deduced amino acid sequence analysis showed a polybasic fusion protein cleavage site motif, typical for virulent NDV. The performed in vivo pathogenicity testing showed a MDT of 40.8 h, and along with previously established intracerebral pathogenicity index of 1.51, these indicated a velogenic pathotype for chickens, which is not typical for pigeon-derived viruses. The experimental infection of chickens resulted in marked neurological signs and high mortality starting at 7 days post infection (dpi). Mild congestion in the thymus and necrosis in the spleen were observed at an advanced stage of infection. Microscopically, lymphoid depletion in the thymus, spleen, and bursa of Fabricius were found at 5 dpi, which progressed to severe in the following days. Mild to moderate proliferation of glial cells was noticed in the brain starting at 2 dpi, which gradually progressed with time, leading to focal nodular aggregation. This study reports the velogenic nature for domestic chickens of a pigeon-derived NDV isolate of sub-genotype XXI.1.2. Our findings show that not all pigeon-derived viruses are of low virulence for chickens and highlight the importance of biologically evaluating the pathogenicity of NDV isolated from pigeons.
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Affiliation(s)
- Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.N.); (L.R.B.); (T.T.M.); (E.H.C.)
| | - Lalita Rani Barman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.N.); (L.R.B.); (T.T.M.); (E.H.C.)
| | - Tanjin Tamanna Mumu
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.N.); (L.R.B.); (T.T.M.); (E.H.C.)
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.N.); (L.R.B.); (T.T.M.); (E.H.C.)
| | - Kiril M. Dimitrov
- Texas A&M Veterinary Medical Diagnostic Laboratory, 483 Agronomy Rd, College Station, TX 77843, USA
- Correspondence: (K.M.D.); (M.R.I.)
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.N.); (L.R.B.); (T.T.M.); (E.H.C.)
- Correspondence: (K.M.D.); (M.R.I.)
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Hasan MJ, Tabassum T, Sharif M, Khan MAS, Bipasha AR, Basher A, Islam MR, Amin MR, Gozal D. Clinico-epidemiologic characteristics of the 2019 dengue outbreak in Bangladesh. Trans R Soc Trop Med Hyg 2021; 115:733-740. [PMID: 33190156 DOI: 10.1093/trstmh/traa126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/11/2020] [Accepted: 10/19/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Dengue fever shows a broad range of clinical presentations worldwide. Here we report on our clinical findings during the 2019 dengue outbreak in one of the largest tertiary care hospitals in Dhaka, the capital of Bangladesh. METHODS A total of 747 suspected dengue cases (553 confirmed and 194 probable) were interviewed with a pro forma case record form. Statistical analyses were conducted using SPSS 20.0. Ethical clearance was obtained from the Dhaka Medical College. RESULTS The mean age of the dengue cases was 27 y and approximately two-thirds were male. Positive tests for NS1 and anti-dengue immunoglobulin M antibody were present in 91.9% and 59.4% of the cases, respectively. Thrombocytopenia was present in 69% of cases and fever was present in 99.1% of cases. Gastrointestinal (GI) features, including anorexia and/or vomiting (69.4%), abdominal pain (39.8%) and diarrhoea (25.6%), were more prevalent than typical rash and pain symptoms. Hypotension was present in approximately one-quarter of patients (25.4%). Probable and confirmed dengue cases have shown similar clinical characteristics and laboratory findings. CONCLUSIONS The 2019 outbreak of dengue fever in Bangladesh was characterized by increased presentation with GI features. Recognition of this trend would permit early diagnosis and proper management of patients.
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Affiliation(s)
| | | | - Mohiuddin Sharif
- Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | | | | | | | | | | | - David Gozal
- Department of Child Health, MU Women's and Children's Hospital University of Missouri School of Medicine, Columbia, MO, USA
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Rahman MM, Nooruzzaman M, Kabiraj CK, Mumu TT, Das PM, Chowdhury EH, Islam MR. Surveillance on respiratory diseases reveals enzootic circulation of both H5 and H9 avian influenza viruses in small-scale commercial layer farms of Bangladesh. Zoonoses Public Health 2021; 68:896-907. [PMID: 34219385 DOI: 10.1111/zph.12879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/11/2021] [Accepted: 06/26/2021] [Indexed: 01/27/2023]
Abstract
Poultry production in Bangladesh has been experiencing H5N1 highly pathogenic avian influenza (HPAI) and H9N2 low pathogenic avian influenza (LPAI) for the last 14 years. Vaccination of chickens against H5 HPAI is in practice since the end of 2012. Subsequently, the official reporting of HPAI outbreaks gradually decreased. However, the true extent of circulation of avian influenza virus (AIV) in commercial poultry production is not clear. To explore this, we conducted active surveillance in 422 small-scale commercial layer farms in 20 villages of Mymensingh and Tangail districts of Bangladesh during 2017 and 2018 for the presence of diseases with respiratory signs. A total of 88 farms with respiratory disease problems were identified and investigated during the surveillance. In addition, 22 small-scale commercial layer farms in the neighbouring areas with respiratory disease problem were also investigated on request from the farmers. Pooled samples of oropharyngeal swabs from live birds or respiratory tissues from dead birds of the farm suffering from respiratory disease problem were tested for molecular detection of avian influenza virus (AIV), Newcastle disease virus (NDV), infectious bronchitis virus (IBV), infectious laryngotracheitis virus (ILTV), Mycoplasma gallisepticum and Avibacterium paragallinarum. A total of 110 farms (88 in the surveillance site and 22 in the neighbouring region) were investigated, and one or more respiratory pathogens were detected from 89 farms. AIV was detected in 57 farms often concurrently with other pathogens. Among these 57 farms, H5, H9, both H5 and H9 or non-H5 and non-H9 AIV were detected in 28, 9, 13 or 7 farms, respectively. Birds of most of the H5 AIV-positive farms did not present typical clinical signs or high mortality. Twenty such farms were observed longitudinally, which had only 1.05%-5.50% mortality but a marked drop in egg production. This widespread circulation of H5 AIV along with H9 AIV and other pathogens in small-scale commercial layer farms, often with low mortality, reaffirms the enzootic circulation of AIV in Bangladesh, which may escape syndromic surveillance focused on unusual mortality only. To reduce public health risks, strengthening of the control programme with comprehensive vaccination, enhanced biosecurity, improved surveillance and outbreak response is suggested.
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Affiliation(s)
- Mohammad Mijanur Rahman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Congriev Kumar Kabiraj
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Tanjin Tamanna Mumu
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Priya Mohan Das
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Mostafa MG, Ahmed S, Islam MR, Rahman MA, Khan L, Alam MM, Ahmed MB. Efficacy of Clotrimazole 1% Solution Compared to Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% Cream in Patient with Otomycosis. Mymensingh Med J 2021; 30:638-643. [PMID: 34226449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fungal infection of the ear canal is called Otomycosis. It is more common in hot and humid condition. There are many modalities of treatment or therapeutic agent for treatment of otomycosis. Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream is a topical antifungal agent described to be effective in the treatment of otomycosis. This study was performed to compare the efficacy of topical application clotrimazole 1% solution and Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream in the treatment of otomycosis. A controlled, randomized and open clinical trial was carried out in ENT department of Mymensingh Medical College Hospital, Mymensingh, Bangladesh from January 2020 to July 2020. Patients diagnosed with fungal otitis externa who were treated with topical antifungals were included in this study. They were randomized into two treatment groups: i) Clotrimazole 1% solution, 2) Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream. Patients were microscopically evaluated at two weeks of treatment to determine resolution of disease. Recurrence and complications were recorded. Demographic and clinical variables were collected and analyzed, follow up and final outcomes (absence of infection) were compared between two groups. One hundred & two (102) patients were included, 51 in the clotrimazole 1% solution group and 51 in the Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream group. Predominant symptoms are pain, pruritus, aural fullness and hearing loss. Aspergillus organism was isolated most frequently (63.73%). Treatment with clotrimazole 1% solution groups resulted in 88.23% resolution vs. 80.39% resolution with Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream at 2 weeks of treatment. Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream group demonstrated higher treatment failure 11.76 and 19.60 respectively. Clotrimazole 1% solution is more effective than Econazole Nitrate 1% + Triamcinolone Acetonide 0.1% cream for uncomplicated otomycosis. More study is needed to corroborate our results.
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Affiliation(s)
- M G Mostafa
- Dr Md Golam Mostafa, Associate Professor, Department of ENT and Head Neck Surgery, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
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Amin MR, Das SK, Kabir A, Islam MR, Ahmed SM, Hasan MJ. Open Label Randomized Controlled Comparison of Three Alternative Regimes of Ciprofloxacin, Azithromycin and Cefixime for Treatment of Uncomplicated Typhoid Fever in Bangladesh. Mymensingh Med J 2021; 30:725-737. [PMID: 34226462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Multi-drug resistant Typhoid fever (resistant to previously used chloramphenicol, ampicillin, amoxicillin, and trimethoprim-sulfamethoxazole) has been commonly described in the South East Asia region and a recent report suggests that the salmonella typhi have reduced response to fluoroquinolones (nalidixic acid-resistant). The optimum treatment protocol for this type of serovar has not been established. This study compared different antimicrobial regimens for the treatment of uncomplicated typhoid fever which was conducted in the medicine ward of Dhaka Medical College Hospital (DMCH) and outdoor setting in private practice in Dhaka metropolitan city, Mymensingh and Sylhet town from January 2017 to December 2017. Bangladeshi adults with uncomplicated typhoid fever were included in this an open-label randomized controlled trial. Ciprofloxacin (20mg/kg of body weight/day for 14 days), azithromycin (20mg/kg/day for 14 days), and Cefixime (16mg/kg/day for 14 days) were compared. Of the 81 enrolled patients, 62 were eligible for analysis (61 S. enterica serovar Typhi, 1 Salmonella enterica serovar paratyphi A). Of the S enterica serovar Typhi isolates, 88.7% (55/62) were MDR and 93.5% (58/62) were nalidixic acid resistant (NAR). The clinical cure rate was 62% (13/21) with ciprofloxacin, 71% (15/21) with Cefixime, and 85% (17/20) with azithromycin (p=0.053). The mean (95% confidence interval [CI]) fever clearance time for patients treated with azithromycin (5.8 days [5.1 to 6.5 days]) was shorter than that for patients treated with cefixime (7.1 days [6.2 to 8.1 days]) and ciprofloxacin (8.2 days [7.2 to 9.2 days]) (p<0.001). All three antibiotics were well tolerated. A 7-day course of azithromycin can be successfully used in uncomplicated typhoid fever due to isolates of MDR S enterica serovar Typhi.
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Affiliation(s)
- M R Amin
- Dr Mohammad Robed Amin, Professor of Medicine, Line Director, NCDC, DGHS, Dhaka, Bangladesh; E-mail:
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Fathema K, Hassan MN, Mazumder MW, Benzamin M, Ahmed M, Islam MR, Haque N, Sutradhar PK, Rahman AR, Rukunuzzaman M. COVID 19 in Children: Gastrointestinal, Hepatobiliary and Pancreatic Manifestation. Mymensingh Med J 2021; 30:570-579. [PMID: 33830145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The most devastating pandemic of this era coronavirus disease-2019 (COVID-19) is caused by a novel virus named severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). Although it is primarily a respiratory pathogen, it can also result in several extra-pulmonary manifestations includes gastrointestinal symptoms, hepatocellular injury. Angiotensin-converting enzyme-2 (ACE-2) receptor and transmembrane serine protease 2 (TMPRSS2), the entry receptor for the causative coronavirus SARS-CoV-2 is co-express in the gastrointestinal tract, hepatocyte, and cholangiocytes similar to the respiratory mucosa. The presence of these receptors facilitates the entry into the tissue and causes direct viral tissue damage, which is a proposed mechanism of injury. Diarrhoea, nausea, vomiting, abdominal discomfort are common gastrointestinal manifestations, whereas derangement of liver function tests is the most hepatic manifestation in COVID-19. In this article, we reviewed on SARS-CoV-2 disease COVID-19 regarding gastrointestinal, hepatic, and pancreatic manifestation, the mechanisms by which the virus may inflict damage, and their management perspective.
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Affiliation(s)
- K Fathema
- Dr Kaniz Fathema, Resident, Department of Pediatric Gastroenterology and Nutrition, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh;
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Siddique AB, Moniruzzaman M, Ali S, Dewan MN, Islam MR, Islam MS, Amin MB, Mondal D, Parvez AK, Mahmud ZH. Characterization of Pathogenic Vibrio parahaemolyticus Isolated From Fish Aquaculture of the Southwest Coastal Area of Bangladesh. Front Microbiol 2021; 12:635539. [PMID: 33763050 PMCID: PMC7982743 DOI: 10.3389/fmicb.2021.635539] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/27/2021] [Indexed: 12/28/2022] Open
Abstract
Vibrio parahaemolyticus is a major foodborne pathogen responsible for significant economic losses in aquaculture and a threat to human health. Here, we explored the incidence, virulence potential, and diversity of V. parahaemolyticus isolates from aquaculture farms in Bangladesh. We examined a total of 216 water, sediment, Oreochromis niloticus (tilapia), Labeo rohita (rui), and Penaeus monodon (shrimp) samples from the aquaculture system where 60.2% (130/216) samples were positive for V. parahaemolyticus. Furthermore, we identified 323 V. parahaemolyticus strains from contaminated samples, 17 of which were found positive for trh, a virulence gene. Four isolates out of the 17 obtained were able to accumulate fluid in the rabbit ileal loop assay. The correlation between the contamination of V. parahaemolyticus and environmental factors was determined by Pearson correlation. The temperature and salinity were significantly correlated (positive) with the incidence of V. parahaemolyticus. Most of the pathogenic isolates (94.1%) were found resistant to ampicillin and amoxicillin. O8: KUT was the predominant serotype of the potentially pathogenic isolates. ERIC-PCR reveals genetic variation and relatedness among the pathogenic isolates. Therefore, this region-specific study establishes the incidence of potential infection with V. parahaemolyticus from the consumption of tilapia, rui, and shrimp raised in farms in Satkhira, Bangladesh, and the basis for developing strategies to reduce the risk for diseases and economic burden.
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Affiliation(s)
- Abu Baker Siddique
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh.,Department of Microbiology, Jahangirnagar University, Dhaka, Bangladesh
| | - M Moniruzzaman
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Sobur Ali
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Md Nayem Dewan
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Mohammad Rafiqul Islam
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Md Shafiqul Islam
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Mohammed Badrul Amin
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Dinesh Mondal
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | | | - Zahid Hayat Mahmud
- Laboratory of Environmental Health, Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
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Begum S, Nooruzzaman M, Islam MR, Chowdhury EH. A Sequential Study on the Pathology of Peste Des Petits Ruminants and Tissue Distribution of the Virus Following Experimental Infection of Black Bengal Goats. Front Vet Sci 2021; 8:635671. [PMID: 33681333 PMCID: PMC7933573 DOI: 10.3389/fvets.2021.635671] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/29/2021] [Indexed: 12/15/2022] Open
Abstract
We studied the sequential pathology of peste des petits ruminants (PPR) in Black Bengal goats and analyzed virus distribution in tissues and virus shedding following experimental infection with a Bangladeshi isolate of lineage IV PPR virus (PPRV). The early clinical signs like fever, depression, and ocular and nasal discharges first appeared at 4-7 days post-infection (dpi). Three out of eight inoculated goats died at 13, 15, and 18 dpi, and the rest were killed at different time points from 5 to 18 dpi. Initially, the virus multiplied mostly in the lymphoid organs of the pharyngeal region and caused extensive lymphoid destruction and hemorrhages. This was followed by viremia, massive virus replication in the lungs, and pneumonia along with the appearance of the clinical signs. Subsequently, the virus spread to other organs causing necrotic and hemorrhagic lesions, as well as the virus localized in the upper respiratory, oral and intestinal mucosa resulting in catarrhal, erosive, and ulcerative lesions. On hematological and biochemical investigation progressive leukopenia and hypoproteinemia, a gradual increase of serum metabolites and enzymes associated with liver and kidney damage, and electrolyte imbalance were observed. Seroconversion started at 7 dpi and all the surviving animals had serum antibodies at 14 dpi. Virus shedding was observed in nasal and ocular secretions at 4 dpi and in feces and urine at 14 dpi, which gradually increased and continued till the end of the experiment (18 dpi) despite seroconversion. Therefore, the virus shedding of naturally infected seroconverted goats should be monitored for effective control strategies.
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Affiliation(s)
- Shahana Begum
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammed Nooruzzaman
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Hasan I, Amin T, Alam MR, Islam MR. Hematobiochemical and histopathological alterations of kidney and testis due to exposure of 4G cell phone radiation in mice. Saudi J Biol Sci 2021; 28:2933-2942. [PMID: 34012329 PMCID: PMC8117002 DOI: 10.1016/j.sjbs.2021.02.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 11/17/2022] Open
Abstract
The radiofrequency electromagnetic radiation emitted by smart phones on biological systems has wide media coverage and public concern in recent years. The aim of this study was to explore the effects of fourth-generation cell phone radiation exposure on hematological (Total leukocyte count, Total erythrocyte count, and hemoglobin %), biochemical (Serum creatinine) parameters, and histopathological changes in the kidney and testis of Swiss albino mice. A total of 30 male Swiss albino mice weighing 45–65 g was randomly divided into three groups (n = 10). The first group A was the control group, the second group B, was exposed to 40 minutes of mobile phone radiation daily, the third group C was exposed to 60 minutes of radiation daily from two 2400 Megahertz fourth-generation connected mobile phones for 60 days, respectively. The electromagnetic radiation frequency radiometer measured the frequency of electromagnetic radiation emitted from cell phones. The specific absorption rate was calculated as 0.087 W/kg. The control group was kept under similar conditions, but the electromagnetic field was not given for the same period. All the mice were sacrificed at the end of the experiment. The blood samples were collected for hematobiochemical study, and then kidney and testis tissues were collected for histopathological study. Results of the study showed that the body weight and total erythrocyte count values were significantly (p < 0.05) decreased while total leukocyte count, hemoglobin %, and serum creatinine values were significantly (p < 0.05) increased in both the radiation exposure groups relative to the control group. Histopathological observation showed the kidney of 60 minutes exposed mice interstitial inflammation that causes marked mononuclear cellular infiltration compared to the 40 minutes and control mice. Compared to control mice, histopathological examinations of testicular tissue from the exposed mice, showed irregular in shapes and non-uniform sizes and fewer spermatogenic cells layer that leads to the larger lumen in the seminiferous tubules. It is concluded that fourth-generation cell phone radiation exposure may affect blood hemostasis and inflammation of mice's kidney and testis tissue. Based on these studies, it is important to increase public consciousness of potential adverse effects of mobile phone radiofrequency electromagnetic radiation exposure.
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Affiliation(s)
- Imam Hasan
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Tanjina Amin
- Department of Anatomy and Histology, Faculty of Veterinary Medicine & Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Md Rafiqul Alam
- Department of Surgery and Obstetrics, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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