Dhaka University Journal of Biological Sciences最新文献_第9页

Toxoplasma Gondii Enhances Oxidative Stress in Pregnant Women: A Case-Control Study 刚地弓形虫增强孕妇氧化应激:一项病例对照研究

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57918

N. Paul, Mosfiqur Rahman, Atiqur Rahman, T. Rahman

{"title":"Toxoplasma Gondii Enhances Oxidative Stress in Pregnant Women: A Case-Control Study","authors":"N. Paul, Mosfiqur Rahman, Atiqur Rahman, T. Rahman","doi":"10.3329/dujbs.v31i1.57918","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57918","url":null,"abstract":"Toxoplasma gondii (T. gondii) is an intracellular protozoan parasite that causes the disease Toxoplasmosis. Acute infection of T. gondii in pregnant women is dangerous because the parasite can transmit into developing foetus and can cause congenital toxoplasmosis. To assess the prevalence of T. gondii infection, its association with pregnancy and the impact of this parasite on generating oxidative stress, ninety-two pregnant women and sixty-five age matched non-pregnant control subjects were enrolled in this study. Using an immunological assay with a rapid test cassette, T. gondii specific IgG antibody was detected in 25% pregnant women while it was found only 9.2% in non-pregnant healthy control subjects, suggesting that a higher percentage of pregnant women carried chronic T. gondii infection compared to control subjects. Anti-T. gondii IgM was also tested and found to be positive in only 3.3 % pregnant women as compared to control. Polymerase Chain Reaction analysis was carried out with the DNA isolated from blood of both anti-T. gondii IgM and IgG positive pregnant women and was found to be negative for T. gondii REP-529 gene, suggesting a chronic infection. Our data suggest that pregnant women who were in contact with cat in their third trimester of pregnancy demonstrated a significantly higher association with acquiring infection. Furthermore, to determine any association of T. gondii infection with oxidative stress in pregnant women, oxidative stress markers were assessed in plasma samples. The total oxidative stress was found to be higher in T. gondii positive subjects compared to T. gondii negative samples whereas total antioxidant defence was observed to be slightly decreased in T. gondii positive pregnant women. It can primarily be said that chronic T. gondii infection in pregnant women may increase oxidative stress and this, therefore, may act as a risk factor for congenital toxoplasmosis.\u0000Dhaka Univ. J. Biol. Sci. 31(1): 79-91, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86284781","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

Adaptation of the Brain Injury Questionnaire of Sexuality Into Bangla and Initial Findings From a Sample Of Bangladeshi Traumatic Brain Injury Patients 性脑损伤问卷在孟加拉的适用性及孟加拉创伤性脑损伤患者样本的初步调查结果

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57927

Md Shahanur Hossain, G. Powell, M. M. Rahman

{"title":"Adaptation of the Brain Injury Questionnaire of Sexuality Into Bangla and Initial Findings From a Sample Of Bangladeshi Traumatic Brain Injury Patients","authors":"Md Shahanur Hossain, G. Powell, M. M. Rahman","doi":"10.3329/dujbs.v31i1.57927","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57927","url":null,"abstract":"Bangladesh is an over populated country with a high incidence of traumaticbrain injury (TBI) for which neuropsychological services are only just emerging.In this context the present study undertook in a culturally sensitive manner totranslate into Bangla (Bengali) the Brain Injury Questionnaire of Sexuality (BIQS)and to present findings from a sample of TBI patients. Standard proceduresincluding back translation for scale adaptation were followed. The Banglaversion of BIQS (BIQS-B) were applied on 30 TBI and 53 healthy sample. Factorand principle component analysis of the BIQS-B yielded three components as inthe original scale explaining 75.3% of the total variance. Reliability is satisfactory,matching that of the English version. The TBI sample scored lower on the BIQS-Bthan did the healthy controls by virtue of not reporting the positive changes insexuality over time that the health controls reported (means of 43.90 vs 52.02, p <0.001). In a very different culture, the factor structure of the BIQS-B is in factsimilar to the English version and has acceptable reliability and validity, hencecontributing to the goal of improving access to services not just in Bangladeshbut in Bangla speaking minority ethnic groups in other countries. Dhaka Univ. J. Biol. Sci. 31(1): 183-191, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79305083","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

Optimization of Culture Media Ingredient and Inoculum On the Yield of Tubifex Worms at Pilot Scale Level 培养基成分及接种量优化对管形虫中试产量的影响

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57928

Md. Inja-Mamun Haque, M. Hasan

引用次数: 0

Isolation and Identification of Pigment Producing Bacteria From the Ratargul Swamp Forest Soil 沼泽森林土壤中产色素细菌的分离与鉴定

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57911

Nafisa Anzum, F. Khan, M. Z. Hossain, M. Islam, M. Saha

{"title":"Isolation and Identification of Pigment Producing Bacteria From the Ratargul Swamp Forest Soil","authors":"Nafisa Anzum, F. Khan, M. Z. Hossain, M. Islam, M. Saha","doi":"10.3329/dujbs.v31i1.57911","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57911","url":null,"abstract":"Pigments are one of the most significant secondary metabolites produced by microorganisms. The aim of the present study was to isolate and identify pigmentproducing bacteria from the Ratargul Swamp Forest (RSF) soil, which is the one and only fresh water swamp forest of Bangladesh. Soil samples were randomly collected from 10 different quadrates (10 m x 10 m) of RSF. The pH values of the soil samples were found to be strongly acidic and ranged between 4.71 and 5.48. Bacterial load of the samples ranged from 1.33×105 to 1.93×108 cfu/g, 6.05×106 to 9.07×107 cfu/g and from 1.16×107 to 1.61×108 cfu/g on nutrient agar (NA), peptone yeast-extract glucose (PYG) agar and Luria-Bertani (LB) agar media, respectively. Interestingly, both the highest and lowest bacterial counts were observed on NA, which was 1.93×108 cfu/g and 1.33×105 cfu/g, respectively. The isolates were found to produce various pigments like yellow, red, dark orange and sweet pink during their colony developments. A total of 71 bacterial isolates were obtained of which 11 were subjected to further study. All the selected bacteria were found to be rod shaped. Out of the 11 isolates, 9 were Gram-positive and 2 were Gramnegative. Provisionally identified potential pigment producing eight bacterial isolates were identified by using molecular marker. Seven of them were matched with their conventional identification up to generic level but conventionally identified Erwinia stewartii was found to be as Aeromonas sobria. Among the 11 isolates, 8 could produce three different types of pigments namely red, yellow and dark orange during in vitro pigment production. The isolated pigment producing bacteria could be used for better biotechnological application.\u0000Dhaka Univ. J. Biol. Sci. 31(1): 1-8, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74935056","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: 2

Changes in Photosynthetic Pigment of Wheat(Triticum Aestivum L. Var. Bari Gom-25) As Affected By Naa and N-Fertilizer Naa和n肥对小麦光合色素的影响

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57925

A. G. Adam, N. Jahan, P. Rashid

{"title":"Changes in Photosynthetic Pigment of Wheat(Triticum Aestivum L. Var. Bari Gom-25) As Affected By Naa and N-Fertilizer","authors":"A. G. Adam, N. Jahan, P. Rashid","doi":"10.3329/dujbs.v31i1.57925","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57925","url":null,"abstract":"A field experiment was conducted to investigate the changes inphotosynthetic pigment of BARI Gom-25 as affected by foliar spray of NAA andN-fertilizers. The experiment consisted of seven different concentrations of NAA(NAA0 = 0, NAA1 = 10, NAA2 = 20, NAA3 = 30, NAA4 = 40, NAA5 = 50 and NAA6 =60 ppm) and five N-levels (F0=0, F1=25, F2=50, F3=75 and F4=100% of therecommended dose) and their 35 combination treatments. Results revealed thatfoliar application of 40 ppm NAA (NAA4) produced higher chlorophyll a contentat all stages (tillering, flowering and grain filling) and were significantly higherthan control at tilling and flowering stages. Chlorophyll b and carotenoidcontents did not show any general trend to NAA at any stage except at tillingstage. Application of 50% of the recommended N-fertilizer (F2) producedsignificantly maximum photosynthetic pigment contents at tilling stage whereas,at flowering stage the same results were obtained from 100% of therecommended N-fertilizers (F4) but with few exceptions. At grain filling stage,photosynthetic pigment did not show any general trend to N-fertilizerapplication. Findings on combined effects indicated that 20 and 30 ppm NAA incombination with 50% N-fertilizer (NAA2F2 and NAA3F2) had producedsignificantly maximum chlorophyll a content at tilling stage. However, atflowering stage the highest chlorophyll a content was noted from NAA2F4treatment (20 ppm NAA in combination with 100% N-fertilizer). Findings alsorevealed that combined application of NAA and N-fertilizer had not resulted anygeneral trend on chlorophyll b and carotenoid contents in most of the caseswhere the maximum value in photosynthetic pigment was found depending onthe concentrations of NAA, fertilizer dose and plant growth stages.\u0000Dhaka Univ. J. Biol. Sci. 31(1): 169-176, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"2007 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76747425","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

Virulence analysis of Pyricularia oryzae isolates causing wheat blast in Bangladesh 孟加拉国小麦稻瘟病菌分离株毒力分析

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54641

A. Noman, S. Shamsi

引用次数: 1

Clay mineralogy of soils from lower atrai basin of Bangladesh 孟加拉国下阿特拉盆地土壤的粘土矿物学

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54654

A. Islam, Z. Khan, A. Mazumder, A. Moslehuddin, M. Uddin, Y. Mori

{"title":"Clay mineralogy of soils from lower atrai basin of Bangladesh","authors":"A. Islam, Z. Khan, A. Mazumder, A. Moslehuddin, M. Uddin, Y. Mori","doi":"10.3329/DUJBS.V30I2.54654","DOIUrl":"https://doi.org/10.3329/DUJBS.V30I2.54654","url":null,"abstract":"The lower Atrai basin, the study area, lies in the Agroecological Zone-5 (AEZ-5) of Bangladesh. This study reveals the clay mineral composition of top soils of seven different soil series viz. Binsara, Taras, Jaonia, Hasnabad, Laskara, Manda and Mainam developed in the basin. X-ray diffraction (XRD) technique was employed to identify and quantify the minerals. Results show that mica (41 to 59%) was the most dominant mineral among all soils except Laskara. In Laskara soils, the interstratified mica-vermiculite-smectite (41%) was the predominant mineral. Next to mica, kaolinite (10 to 12%) was found to be present in the Binsara, Taras 1, Jaonia, and Taras 2 soils. Chlorite (7 to 17%) was identified in all the soils and was found to be the second dominant mineral in the Manda and Mainam soils. In contrast, the interstratified mica-vermiculitesmectite (33%) was found to be the second dominant mineral in the Hasnabad soils. Small amounts of vermiculite mineral (1 to 13%) were identified in almost all the soils except Binsara. All the soils have interstratified mica-chlorite minerals (2 to 7%). A tiny amount of smectite (1%) was identified in Taras 1 soil. As far as the clay mineralogical composition is concerned, most studied soils were found at the initial stage of weathering, indicating the high potential to sustain low input subsistence agriculture. \u0000Dhaka Univ. J. Biol. Sci. 30(2): 293-306, 2021 (July)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88608938","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

Evaluation of a school-based self-esteem intervention program for adolescents 以学校为基础的青少年自尊干预计划之评估

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54646

Umme Kawser, Tahneena Mehreinn, Rajon Das Jony, M. Matin

引用次数: 0

Community structure of protozoan parasites in Heteropneustes fossilis (Bloch 1794) in Bangladesh 孟加拉国Heteropneustes化石(Bloch 1794)中原生动物寄生虫的群落结构

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54655

A. Bhuiyan, Zannatun Nahar Jhinu, Rita Parveen, Abdul Jabber Hawlader

{"title":"Community structure of protozoan parasites in Heteropneustes fossilis (Bloch 1794) in Bangladesh","authors":"A. Bhuiyan, Zannatun Nahar Jhinu, Rita Parveen, Abdul Jabber Hawlader","doi":"10.3329/DUJBS.V30I2.54655","DOIUrl":"https://doi.org/10.3329/DUJBS.V30I2.54655","url":null,"abstract":"The study was conducted to prepare a database for the infection status of protozoan parasites on an important host fish species of Bangladesh, Heretropneustes fossilis. Host samples were collected from the freshwater habitats of six different districts of Bangladesh- Manikganj, Faridpur, Mymensingh, Kishoreganj, Bogura, and Jashore. H. fossilis was noted to be infected by 6 parasite species, of which 3 belonged to myxozoa (Henneguya singhi, Henneguya qadrii and Henneguya mystusia); 1 belonged to ciliophora (Trichodina siddiquae) and 2 (Trypanosoma singhii and Piscinoodium pillulare) belonged to mastigophora.The parasites, Trypanosoma singhii and Henneguya singhi were recorded as new locality record in H. fossilis. The three parasites Piscinoodium pillulare, Henneguya qadrii and Henneguya mystusia were the first recorded parasites in this fish and the first locality record in Bangladesh. The parasites were observed to occupy gill, body slime, and blood. Gill parasites were abundantly found compared to body slime and blood parasites. The highest prevalence (67.21%) of infection of H. fossilis was observed in Manikganj and the lowest prevalence (54.67%) of infection was observed in Bogura. Parasites of H. fossilis showed the highest diversity in fishes of Faridpur (2.63). Species richness of parasites was highest in Manikganj (0.38) and species evenness was relatively low (0.13-0.19) in almost all the study sites. \u0000Dhaka Univ. J. Biol. Sci. 30(2): 307-316, 2021 (July)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89884140","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

Non-invasive DNA extraction for molecular identification of royal Bengal tiger Panthera tigris tigris 孟加拉虎底格里斯虎分子鉴定的无创DNA提取

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54657

Alam, M. Rahaman, R. Begum, Rm Shahjahan

引用次数: 0