Al-Mustansiriyah Journal of Science最新文献_第8页

Investigation of Virulence Factors in Microbial Organisms that Associated with Public Health Risk Isolates from Different Environmental Regions 不同环境区与公共卫生风险相关的微生物中毒力因子的研究

Al-Mustansiriyah Journal of Science Pub Date : 2023-02-25 DOI: 10.23851/mjs.v33i5.1303

S. A. Abid, Sarah N. Aziz, N. A. Saeed, S. N. Mizil, I. AL-Kadmy, N. Hussein, Nadal A. Al-Saryi, S. Ibrahim, J. D. Hussein

{"title":"Investigation of Virulence Factors in Microbial Organisms that Associated with Public Health Risk Isolates from Different Environmental Regions","authors":"S. A. Abid, Sarah N. Aziz, N. A. Saeed, S. N. Mizil, I. AL-Kadmy, N. Hussein, Nadal A. Al-Saryi, S. Ibrahim, J. D. Hussein","doi":"10.23851/mjs.v33i5.1303","DOIUrl":"https://doi.org/10.23851/mjs.v33i5.1303","url":null,"abstract":"Infectious diseases caused by infected tools in the environments are threaten to the safety and public health. Transmission sources of these infectious diseases are unknown, but it is thought that non-living materials called fomites, are the major source of acquired infections. Three hundred and one swabs were taken from different sources and cultured on blood agar to study heamolysis ability of isolated bacteria. In this study, MacConkey agar was used to isolate Gram-negative bacteria and Sabouraud agar (SDA) to isolate fungi. The biofilm formation test was done by Congo red plate assay. 41 (13.6%) bacterial isolates were obtained and (18.27%) of fungi were isolated on Sabouraud agar (SDA). Staphylococcus aureus was the more frequent bacterial species that isolated in this study. 29% of samples showed hemolysin activity on blood agar and 32%of the isolates were biofilm- producer. Results revealed that (7.9%) of Gram-negative bacteria harbored the fimH gene, (9%) harbored the icaA were Gram-positive and 6.3 % of fungal samples had HWP1 gene. Furthermore, (9.3%) from the total samples are bacterial samples harbored hla gene belong to Staphylococcus spp. Furthermore, (5.07%) of tested samples possessed hlyA gene were Gram-negative bacteria. We found in our study that infectious organisms can be transmitted from one individual to another by fomites responsible for acquired infection.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83235679","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: 4

The Influence of Age, Gender and Weight on Sex Hormone Levels and Histological Development of Reproductive Organs in Arabi Sheep 年龄、性别和体重对阿拉伯羊性激素水平和生殖器官组织发育的影响

Al-Mustansiriyah Journal of Science Pub Date : 2023-02-25 DOI: 10.23851/mjs.v33i5.1309

Aseel Jameel Jumaa, W. Y. Kassim

引用次数: 0

Detection of Biofilm Formation in Classical and Hypervirulent Klebsiella pneumoniae 经典和高致病性肺炎克雷伯菌生物膜形成的检测

Al-Mustansiriyah Journal of Science Pub Date : 2023-02-25 DOI: 10.23851/mjs.v33i5.1315

Iman Mohammad Mahmood Alansary, Nadal A. Al-Saryi

{"title":"Detection of Biofilm Formation in Classical and Hypervirulent Klebsiella pneumoniae","authors":"Iman Mohammad Mahmood Alansary, Nadal A. Al-Saryi","doi":"10.23851/mjs.v33i5.1315","DOIUrl":"https://doi.org/10.23851/mjs.v33i5.1315","url":null,"abstract":"Klebsiella pneumoniae has considered as a relevant healthcare-associated pathogen, its risk of infections is increasing in the presence of medical devices. K. pneumoniae is known for its ability to form biofilm on biotic and abiotic surfaces. Biofilm of K. pneumoniae assists in bacterial protection from host immune responses and antibiotics. Hypervirulent Klebsiella pneumoniae (hvKp) emerges as a new pathotype, which first appeared in Asian Pacific Rim but spread globally. Thus, this study aimed to investigate the ability of K. pneumoniae including hvKp and potential hvKp isolates to form biofilm. One hundred isolates of K. pneumoniae were collected from different hospitals in Baghdad city. These isolates were identified by phenotypic characterization on selective agar plates, biochemical tests, VITEK II, and molecular identification. Biofilm formation was tested in these isolates by two methods, congo red and Tissue Culture Plate method. In congo red method, 33% of the isolates were biofilm producer and (63%) can form biofilm by TCP method divided as: 14% strong, 15 moderate, 34% weak, and 37% non-biofilm producer. The hvKp and potential hvKp isolates showed a variable ability to form biofilm as classical K. pneumoniae.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78597042","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

The Relation Between the Noise Stress Effects and Neurotransmitters, Sex Hormones Levels in the Male and Female Balb/c Mice 噪声应激效应与雌雄Balb/c小鼠神经递质、性激素水平的关系

Al-Mustansiriyah Journal of Science Pub Date : 2023-02-25 DOI: 10.23851/mjs.v33i5.1321

Zainab A. A. Al-Shammary, Sabah A. Hameid, J. Jouda

{"title":"The Relation Between the Noise Stress Effects and Neurotransmitters, Sex Hormones Levels in the Male and Female Balb/c Mice","authors":"Zainab A. A. Al-Shammary, Sabah A. Hameid, J. Jouda","doi":"10.23851/mjs.v33i5.1321","DOIUrl":"https://doi.org/10.23851/mjs.v33i5.1321","url":null,"abstract":"Many studies suggest that noise stress could damage many body systems such as nervous and endocrine systems, so the goal of this study was to demonstrate how the levels of neurotransmitters and sex hormones in mature male and female mice are affected by different noise stress exposure durations? In this study, 60 Balb/C mice (males and females) were used. Fifty mice were exposed to 90dB noise stress for 4h/daily and were scarified in different time points; 1,7,14,21, and 28 days while the rest 10mice were not exposed to noise stress and they serve as control. After the end of the experiment, the blood was collected and the serum samples were used to determine neurotransmitters levels, serotonin (5-HT) and noradrenaline (NA), and hormones levels included testosterone, estrogen and cortisol levels. The findings showed that neurotransmitters levels were significantly higher in mice exposed to noise stress for 1,8,14, and 21days which was non-significant decrease compared to the control in the 28-day stress group. While the levels of cortisone were continuously rising in the exposed noise stress mice groups with the length of duration, the levels of estrogen in female and testosterone in male were continuously decreasing. Interestingly, the levels of neurotransmitters and cortisol were significantly higher in females than males in all noise stress groups. Additionally, these effects completely differ after 28 days of noise exposure, which needs more future studies to prove the risk of exposure to this type of stress on the body systems.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73125411","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

Influence of Graphene Sheets Accumulation on Optical Band Gap Enhanced Graphite Exfoliation 石墨烯片积累对光学带隙增强石墨剥离的影响

Al-Mustansiriyah Journal of Science Pub Date : 2022-12-30 DOI: 10.23851/mjs.v33i4.1216

Riad M. Hameed, Ahmad Al-Haddad, Abbas K. H. Albarazanchi

引用次数: 1

Effect of Colloidal Cu NPs/Cinnamon Extract on the Antibacterial Activity 胶体铜NPs/肉桂提取物对抗菌活性的影响

Al-Mustansiriyah Journal of Science Pub Date : 2022-12-30 DOI: 10.23851/mjs.v33i4.1154

Maryam Mohammed K., B. M. Ahmed

引用次数: 1

Study IR- Raman Spectra properties of Aluminium Phosphide Diamondoids Nanostructures via DFT 利用DFT研究磷化铝类金刚石纳米结构的红外-拉曼光谱特性

Al-Mustansiriyah Journal of Science Pub Date : 2022-12-30 DOI: 10.23851/mjs.v33i4.1182

H. A. Fayyadh, Dh. Kh. Kafi, A. Darweesh

引用次数: 0

Study of Phenotypic and Genotypic Factors of Staphylococcus aureus Clinical Local Isolates 金黄色葡萄球菌临床局部分离株表型和基因型因素的研究

Al-Mustansiriyah Journal of Science Pub Date : 2022-12-30 DOI: 10.23851/mjs.v33i4.1166

A. M. Ali, M. M. Abdallah

引用次数: 0

Special Arcs in PG(3,13) PG(3,13)中的特殊弧线

Al-Mustansiriyah Journal of Science Pub Date : 2022-12-30 DOI: 10.23851/mjs.v33i4.1197

Saja Makki Attook, E. B. Al-Zangana

引用次数: 0

Numerical Simulation of The Spectroscopic Properties of The Laser Dye for Low Concentrations 低浓度激光染料光谱特性的数值模拟

Al-Mustansiriyah Journal of Science Pub Date : 2022-12-30 DOI: 10.23851/mjs.v33i4.1158

H. Dagher

{"title":"Numerical Simulation of The Spectroscopic Properties of The Laser Dye for Low Concentrations","authors":"H. Dagher","doi":"10.23851/mjs.v33i4.1158","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1158","url":null,"abstract":"In the current study, a mathematical model using the MATLAB program was studied depending on the logistic power peak function to simulate the change in the absorbance with the different values of the concentrations of Rhodamine B. There are five parameters that have been applied to the concentration values of this laser dye that are proposed by the logistic power peak function of the seventh degree. To measure the absorption measurements, a range of concentrations from 4.7x10-7 to 3.76x10-6 M was prepared from Rhodamine B and dissolved in deionized water with a peak absorption at 556 nm. A JASCO V-630 spectrophotometer was used to record the spectra of the dye. The intensity is detected using a silicon photodiode (S1337). The results were found that the suggested function approved the relationship between the absorbance and the values of the concentrations with a significant accuracy depending on the high values of the correlation coefficients between the approximated original data which were determined more than 99.2%. The advantages of this function represent by providing parameters, which are used to describe the mathematical processes with high-resolution property profiles.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78045352","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