Journal of bio-science最新文献_第6页

Tackling the COVID-19 Pandemic- A Review 应对COVID-19大流行——综述

Journal of bio-science Pub Date : 2021-08-04 DOI: 10.3329/jbs.v29i2.54964

CC Nganwuchu, K. Habas, N. Mohammed, M. O. Wusuansa, D. Makanjuola, K. Assi, RC Gopalan, M. Nasim

{"title":"Tackling the COVID-19 Pandemic- A Review","authors":"CC Nganwuchu, K. Habas, N. Mohammed, M. O. Wusuansa, D. Makanjuola, K. Assi, RC Gopalan, M. Nasim","doi":"10.3329/jbs.v29i2.54964","DOIUrl":"https://doi.org/10.3329/jbs.v29i2.54964","url":null,"abstract":"Since December 2019, a new type of coronavirus called novel coronavirus (2019-nCoV, or COVID-19) was identified in Wuhan, China and on March 11, 2020, the World Health Organization (WHO) has declared the novel coronavirus (COVID-19) outbreak a global pandemic. With more than 101,797,158 confirmed cases, resulting in 3,451,354 deaths as of May 21, 2021, the world faces an unprecedented economic, social, and health impact. The clinical spectrum of COVID-19 has a wide range of manifestations, ranging from an asymptomatic state or mild respiratory symptoms to severe viral pneumonia and acute respiratory distress syndrome. Several diagnostic methods are currently available for detecting the coronavirus in clinical, research, and public health laboratories. Some tests detect the infection directly by detecting the viral RNA using real time reverse transcriptase polymerase chain reaction (RT-PCR) and other tests detect the infection indirectly by detecting the host antibodies. Additional techniques are using medical imaging diagnostic tools such as X-ray and computed tomography (CT). Various approaches have been employed in the development of COVID-19 therapies. Some of these approaches use drug repurposing (e.g. Remdesivir and Dexamethasone) and combinational therapy (e.g. Lopinavir/Ritonavir), whilst others aim to develop anti-viral vaccines (e.g. mRNA and antibody). Additionally, health experts integrate data sharing, provide with guidelines and advice to minimize the effects of the pandemic. These guidelines include wearing masks, avoiding direct contact with infectious people, respiratory and personal hygiene. Taken together, an extensive knowledge on transmission mechanisms, clinical spectrums, specific diagnostics methods, host-virus interactions are required to tackle this pandemic.\u0000J. Bio-Sci. 29(2): 175-186, 2021 (December)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46367872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence and Antibiotic Resistance Patters of Escherichia Coli Isolated From Milk and Milk Product 牛奶及乳制品中分离的大肠杆菌的流行及耐药模式

Journal of bio-science Pub Date : 2021-08-04 DOI: 10.3329/jbs.v29i2.54957

T. Sultana, M. Rabbi, B. Sarker, MS Islam, M. Begum, K. Hossain

{"title":"Prevalence and Antibiotic Resistance Patters of Escherichia Coli Isolated From Milk and Milk Product","authors":"T. Sultana, M. Rabbi, B. Sarker, MS Islam, M. Begum, K. Hossain","doi":"10.3329/jbs.v29i2.54957","DOIUrl":"https://doi.org/10.3329/jbs.v29i2.54957","url":null,"abstract":"Milk contains many nutrients including carbohydrate, protein, fat, vitamins and minerals. Milk protein has high nutritional value because it contains all the essential amino acids. Considering the nutritive value, milk is widely consumed by the people as an ideal food. The biochemical changes in milk and milk products by microorganisms can be either desirable or undesirable. The safety of milk and milk products with respect to food borne diseases is of great concern around the world. Therefore, the present study was undertaken to determine the prevalence of Escherichia coli in milk and milk product with their antibiogram assay. A total of 150 milk and milk product (yogurt) samples were collected from Rajshahi Metropolitan area of Bangladesh and analyzed by cultural, staining and biochemical tests for the isolation and identification of E. coli. Antibiogram assay of all the isolates were done by disk diffusion method. The overall prevalence of E. coli was 20.0% in milk and milk product (yogurt) in Rajshahi Metropolitan area. The prevalence of E. coli was 26.0% and 34.0% in raw milk and in milk product (yogurt), respectively. E. coli was not detected in pasteurized milk in this study. In antibiogram assay, isolated E. coli showed 100.0%, 60.0%, 40.0%, 40.0%, 33.3%, 33.3%, 20.0%, and 10.0% resistance to penicillin, gentamycin, ampicillin, streptomycin, amoxycillin, sulfamethoxasole-trimethoprim, nalidixic acid, and ciprofloxacin, respectively. The isolates also showed 73.3%, 60.0%, 53.3%, 53.3%, 30.0%, 23.3%, and 20% sensitive to ciprofloxacin, nalidixic acid, sulfamethoxasole-trimethoprim, streptomycin, amoxycillin, ampicillin, and gentamycin, respectively. The findings of this experiment speculated that the use of ciprofloxacin and nalidixic acid may have the preference in the clinical control of milk borne E. coli infection in Bangladesh. J. Bio-Sci. 29(2): 81-91, 2021 (December)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69504118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temporal Variations of Condition Factor and Relative Weight For Mystus Gulio (Hamilton, 1822) From the Coastal Water in Bangladesh 孟加拉国沿海水域Mystus Gulio（Hamilton，1822）条件因子和相对权重的时间变化

Journal of bio-science Pub Date : 2021-07-11 DOI: 10.3329/jbs.v29i0.54827

O. Rahman, M. Hossain, Md. Mizanur Rahman, M. Islam, M. A. Rahman, Most. Farida Parvin, Sarmin, B. Sarker, W. Sabbir, Khadija Habib

{"title":"Temporal Variations of Condition Factor and Relative Weight For Mystus Gulio (Hamilton, 1822) From the Coastal Water in Bangladesh","authors":"O. Rahman, M. Hossain, Md. Mizanur Rahman, M. Islam, M. A. Rahman, Most. Farida Parvin, Sarmin, B. Sarker, W. Sabbir, Khadija Habib","doi":"10.3329/jbs.v29i0.54827","DOIUrl":"https://doi.org/10.3329/jbs.v29i0.54827","url":null,"abstract":"The long whiskers catfish, Mystus gulio (Hamilton, 1822), is a valuable, delicious food fish in coastal areas of Bangladesh. It is found in fresh and brackish water of South Asian region. The present study illustrates the temporal variation of condition factor (KF) and prey-predator through relative weight (WR) along with length-weight relation (LWR) of M. gulio in the Maloncho River at southern Bangladesh. There were a total of 1200 individuals collected between January-December 2017 and October 2019 to June 2020. Different traditional gears (such as cast net, seine net, square lift net) were used for collecting the fish samples. There were 35% males and 65% females. The total length of fish ranged 7.8-18.3 cm for males and 9.3-22.1 cm for females. The body weight ranged 8.80–72.34 g for males and 8.09-128.82 g for females. LWR was significant with r2 value >0.950. The calculated co-efficient (b) were negative allometric growth in male and female (b<3.0, p<0.001). The KF indicated the best condition of this species. WR revealed no significant difference from 100 for both sex (p = 0.441) and females (p = 0.221), indicating a suitable habitat for growth. From conservation point of view, the findings of this present study on M. gulio will be helpful in Bangladesh (Maloncho River) and neighboring countries.\u0000J. Bio-Sci. 29(1): 111-122, 2021 (June)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44837961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Response of Chickpea (Cicer Arietinum L.) To Boron and Molybdenum Fertilization 鹰嘴豆(Cicer Arietinum L.)的反应硼和钼的施肥

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i2.54953

A. B. M. Zahidul Hoque, M. Alam, S. Khatun, M. Salahin

{"title":"Response of Chickpea (Cicer Arietinum L.) To Boron and Molybdenum Fertilization","authors":"A. B. M. Zahidul Hoque, M. Alam, S. Khatun, M. Salahin","doi":"10.3329/jbs.v29i2.54953","DOIUrl":"https://doi.org/10.3329/jbs.v29i2.54953","url":null,"abstract":"An experiment was conducted to study the effect of micronutrients on the growth and yield performance of chickpea. The experiment was consisted using two factors- variety and treatments. Two local cultivars viz. BARI Chola-5 and BARI Chola-9 and five treatments e.g. T0 = control, T1 = 2 kg B/ha, T2 = 2 kg Mo/ha, T3= seed priming with Mo (1g/l water), T4 = foliar spray of B (0.5 g/l water) + seed priming with Mo (1g/l water), and T5 = 2 kg B/ha + seed priming with Mo (1g/l water) were considered for this study. A randomized complete block design (RCBD) was adopted with three replications. Significant variation was observed between the varieties and here the BARI Chola-9 produced the higher seed yield (2.47 ton/ ha). Treatment showed significant effect on the yield attributes and yield of chickpea. The highest plant height, number of branches/ plant, number of pods/ plant, nodule/ plant, number of effective pod/ plant, length of the pod, 1000-grain weight, seed yield, straw yield, biological yield was obtained from T4. The highest seed yield (2.68 ton/ ha) was recorded from BARI Chola-9 with foliar spray of boron and seed priming with Mo. The results indicated that foliar spray of B and seed priming with molybdenum can be beneficial in improving growth and yield of chickpea variety BARI Chola-9. J. Bio-Sci. 29(2): 43-51, 2021 (December)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69504055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Morphological and Molecular Characterization of Several Neogastropod Species (Mollusca: Gastropoda) From Coastal Waters of Bangladesh With One New Record 孟加拉沿海几种胃足纲新物种(软体动物:腹足纲)的形态和分子特征及新记录

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i0.54824

KS Sultana, PS Brishti, S. Ahmed, M. Billah, K. Habib

{"title":"Morphological and Molecular Characterization of Several Neogastropod Species (Mollusca: Gastropoda) From Coastal Waters of Bangladesh With One New Record","authors":"KS Sultana, PS Brishti, S. Ahmed, M. Billah, K. Habib","doi":"10.3329/jbs.v29i0.54824","DOIUrl":"https://doi.org/10.3329/jbs.v29i0.54824","url":null,"abstract":"The present study reports the morphological and molecular characterization of marine neogastropods collected from the South-East to the South-West coasts of Bangladesh. A total of 21 species under 13 families were identified morphologically, of which 7 species were barcoded successfully using partial sequence of mitochondrial cytochrome oxidase subunit-I (COI) gene. The average nucleotide frequencies of these species were G (guanine) = 20.57%, C (cytosine) = 18.44%, A (adenine) = 23.65%, T (thymine) = 37.35% and the GC content was 39.01%. The average Kimura two-parameter (K2P) distances of the COI barcode sequences within species, genera, and families were 20.7%, 22.0%, and 22.0%, respectively. The average inter-species genetic divergence was calculated as 21.0%. In addition, the COI barcode sequence of Nassarius stolatus was identified and submitted to the GenBank for the first time. The study also reports the new record of a species, Indothais rufotincta Tan & Sigurdsson, 1996 from Bangladesh. This finding greatly extends the distributional range of this species from the West coast to the East coast of the Bay of Bengal. J. Bio-Sci. 29(1): 79-91, 2021 (June)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69503898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Identification and Antibiogram Assay of Escherichia Coli Isolated From Chicken Eggs 鸡蛋中分离的大肠埃希菌鉴定及抗生素谱分析

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i0.54828

M. Hossain, W. Rahman, M.S. Ali, T. Sultana, K. Hossain

{"title":"Identification and Antibiogram Assay of Escherichia Coli Isolated From Chicken Eggs","authors":"M. Hossain, W. Rahman, M.S. Ali, T. Sultana, K. Hossain","doi":"10.3329/jbs.v29i0.54828","DOIUrl":"https://doi.org/10.3329/jbs.v29i0.54828","url":null,"abstract":"Chicken eggs contain all the essential components such as proteins, lipids, vitamins, minerals, carbohydrates, and growth factors required by the human being. Despite of their nutritional values eggs can cause health problems through consumption of contaminated eggs with pathogenic microorganisms. Therefore, the present study was undertaken to identify Escherichia coli isolated from chicken eggs with their antibiogram assay in Rajshahi district of Bangladesh. E. coli was isolated from 180 chicken eggs collected from different areas of Rajshahi district and identified based on cultural, staining, and biochemical characteristics. Antibiogram assay of all the isolates were done by disk diffusion method. The overall prevalence of E. coli was 38.89% in chicken eggs of which 27.78% was on egg shells and 11.11% was in egg content. The prevalence of E. coli was 58.33% in commercial layer farm eggs, 41.66% in whole seller eggs, and 16.67% in retailer eggs. In antibiogram study, isolated E. coli showed 64.28% to 92.85% sensitivity to chloramphenicol, gentamycin, and ceftriaxone. The highest sensitivity was found to meropenem (100%). Isolated E. coli showed resistance to ciprofloxacin, tetracycline, amoxicillin, ampicillin, and erythromycin ranging from 50% to 71.42%. Judicious use of antibiotics and public awareness will help to reduce the development of antibiotic resistance. J. Bio-Sci. 29(1): 123-133, 2021 (June)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69503944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effects of Osmotic, Thermal and Plant Growth Regulators Seed Priming on Different Wheat Varieties 渗透、热和植物生长调节剂对不同小麦品种种子催种的影响

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i2.54960

M. Ahmed, F. Khatun, Z. Islam

{"title":"Effects of Osmotic, Thermal and Plant Growth Regulators Seed Priming on Different Wheat Varieties","authors":"M. Ahmed, F. Khatun, Z. Islam","doi":"10.3329/jbs.v29i2.54960","DOIUrl":"https://doi.org/10.3329/jbs.v29i2.54960","url":null,"abstract":"Proper germination and proper growth of seedlings in conventional farming methods are often not achieved at the desired rate. The purpose of priming is to reduce germination time and improve stand and percentage of germination and increases vigour for fast and strong plant development. In order to evaluate the effect of seed priming on growth and yield of wheat the present study was conducted at Agronomy Farm House, Rajshahi University. Three wheat varieties (BARI Gom-24, BARI Gom-25 and BARI Gom-26) were tested with three groups of priming media (osmo-priming, thermos-priming and plant growth regulator priming) and control (non-soaked). Seeds were primed for 24 h at 25°C with four priming media, osmo-priming (1% NaCl, 2% KNO3, 2% KH2PO4, and 10% PEG), PEG-Priming (50 μM GA3 and 50 μM BAP) and thermo-priming (0°C, 5°C and 10°C) and control was without priming agent. All types of priming media were significantly different among their types for plant height (cm), tiller number and dry biomass (g). PEG was significantly different in osmo-priming, GA3 was significantly different in PGR-priming and 0°C was significantly different in thermo-priming. In case of vigor index, 2% KH2PO4 was suitable among osmo-priming, GA3 was better than BAP priming and 0°C was optimum among all temperature priming. Seed priming helps seeds to grow rapidly and evenly in the field, producing healthier and faster maturing crops with better yields. J. Bio-Sci. 29(2): 111-122, 2021 (December)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69504129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Meiotic Behaviour in Ten Species of Pteridophytes From Bangladesh 孟加拉国10种蕨类植物减数分裂行为

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i0.54829

M. Mannan, G. Kabir

引用次数: 0

Phytochemical Analysis of Different Parts of Acalypha Indica L. 荆芥不同部位的植物化学分析。

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i0.54823

Mim E Tasmim, M. Nasiruddin, M. Islam, RS Sultana

引用次数: 0

Hba1c Variability Has a Strong Relationship With Peripheral Sensory And Motor Neuropathy in Type-2 Diabetes Mellitus 2型糖尿病患者Hba1c变异性与周围感觉和运动神经病变密切相关

Journal of bio-science Pub Date : 2021-01-01 DOI: 10.3329/jbs.v29i0.54825

Mahbub Hossain, Mk Sarkar, I. Mahbub, S. Islam

{"title":"Hba1c Variability Has a Strong Relationship With Peripheral Sensory And Motor Neuropathy in Type-2 Diabetes Mellitus","authors":"Mahbub Hossain, Mk Sarkar, I. Mahbub, S. Islam","doi":"10.3329/jbs.v29i0.54825","DOIUrl":"https://doi.org/10.3329/jbs.v29i0.54825","url":null,"abstract":"Diabetic peripheral neuropathy (DPN) is one of the most common long-term microvascular complications of diabetes. This study was undertaken to investigate the association of HbA1c variability with diabetic peripheral neuropathy (sensory and motor) in patients with type-2 diabetes. In this cross-sectional study, a total of 150 type-2 diabetic patients were screened for DPN and undergone quarterly HbA1c measurements during the year preceding enrolment were recruited. DPN was confirmed in patients displaying both clinical manifestations of neuropathy and neurological abnormalities assessment. Among the recruited patients, 24% (n = 36) were found to have DPN, and these patients also presented with a higher HbA1c as compared to the patients without DPN (p<0.05). In addition, the advanced age and longer duration of diabetes were important and significant (p<0.05) risk factors for peripheral neuropathy. Overall study suggests that increased HbA1c level is strongly associated with DPN (sensory and motor) in type-2 diabetic patients and could be considered as a potent indicator for DPN in the recruited patients. J. Bio-Sci. 29(1): 93-100, 2021 (June)","PeriodicalId":90580,"journal":{"name":"Journal of bio-science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69503903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1