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Showing 4 results for khalili
Study of Molecular Epidemiologic of Group B Streptococcus Colonization in Pregnant Women by PCR Method 
Mk Sharifi Yazdi, R Bakhtiari, G Mobasseri, Mm Soltan Dallal, Mb Khalili,
Volume 5, Issue 2 (20 2011)
Abstract

Background and Aim: Group B streptococcus(GBS)(Streptococcus agalactiae) is the leading cause of morbidity and mortality of the newborn infant and accounted as a factor leading septicemia after birth in mothers. Infections in infants are usually acquired by contact with the genital tract of the mother during labor and delivery. So a rapid screening test for group B streptococcus that could accurately identify pregnant women who are carrying the bacteria at the time of delivery would obviate the need for prenatal screening.The goal of this study was molecular epidemiology of group B beta Hemolytic Streptococcal(GBS) colonization in the vaginal flora of pregnant women.

Materials and Methods: Samples were taken from mucus of anal and vaginal of 250 pregnant women during 35-37 week's ingestion by swap. Samples were tested by standard culture using Todd Hewitt Broth and Blood Agar and also by PCR using cfb gene.

Results: Culture identified 21(8.4%) women as carriage of GBS from 250 women but PCR assay could identify 24(9/6%) women. In comparison to culture results, sensitivity, NPV Specificity PPV of PCR Were(100%, 100% and 97%, 82%) respectively. The times that used for PCR assay and culture were 2h and 36h respectively.

Conclusion: In conclusion, we found that group B streptococci can be detected rapidly and reliably by a PCR assay of combined vaginal and anal secretions from pregnant women at the time of delivery. Also this study shows that incidence of GBS is at high rate in Iranian pregnant woman, so we recommend screening of pregnant woman for detecting of GBS emphatically.


Prevalence Of Staphylococcus Aureus (SA) And Methicillin Resistant Staphylococcus Aureus (MRSA) In Personnel Of Operation Room Of Shahid Sadoughi Hospital, Yazd, Iran 
Mohammad Bagher Khalili, Mitra Moshref, Mohammadreza Sharifi, Maryam Sadeh, Alireza Sazmand,
Volume 6, Issue 5 (13 2013)
Abstract

Background and Aim: Staphylococcus aureus(SA) may cause infection in all body organs. Many personnel and patients in hospitals may become carriers of this species. The aim of this study was to investigate relative frequency of SA and its resistance to Methicillin.

Materials and Methods: A couple of swabs were taken from nose and nails of 151 personnels working in operation room of Shahid Sadoughi Hospital in Yazd. Samples were inoculated into Mannitol salt agar medium and S. aureus colonies were antibiogramed to determine the rate of resistance to methicillin. Statistical analyses were performed by chi-square and Fishers' exact test.

Results: Overall prevalence of SA was 35.09%(19.2% and 15.9% in noses and nails, respectively). Prevalence of methicillin-resistant SA(MRSA) was 11.92%(5.3% and 6.6% in noses and nails, respectively). Surgeons had the highest, and workers the lowest prevalence of nasal SA carrier rate. In contrast, the nails of servants had the highest, and surgeons the lowest SA carrier rate. No significant difference was found between carrier rate and age, sex and duration of employment. But a meaningful relation was found between type of job and MRSA in both noses and nails. All of the MRSA isolates were sensitive to vancomycin.

Conclusion: Since employees of operation room are continuously working with patients undergone operation, screening both the personnel and patients to determine the rate of carriage, preventing transfusions of fore mentioned bacterium is necessary and highly recommended.


The Study of Enteropathogenic Escherichia Coli Prevalence by PCR Method in Under-5-Year-Old Children’s Diarrheal Samples Caused by the Country’s Food
Rashin Bahmanabadi , Mohammad Bagher Khalili , Mohammad Mehdi Soltan Dallal,
Volume 11, Issue 6 (3-2018)
Abstract
Background and Aim: Enteropathogenic Escherichia coli (EPEC) pathotypes belong to Enterobacteriaceae family that is known as the cause of gastroenteritis and diarrhea in under-5-year-old children. These bacteria have high prevalence in developed and developing countries that may cause severe illness or even death. The aim of this study was to examine EPEC prevalence in diarrheal samples of children under 5 years -- caused by the country’s food -- by PCR method.
Materials and Methods: In a cross-sectional study, 45diarrheal samples of children suffering from country food outbreaks were transferred to the Department of Microbiology, School of Public Health, Tehran University of Medical Sciences (TUMS). E. coli strain was identified using standard methods and biochemical tests. For the detection of Enteropathogenic E. coli, the presence of eae gene was checked by PCR method, and serologic test using specific antiserum (Mast company, England) was checked by agglutination method on slide.
Results: Of the 45 outbreaks, 28 Escherichia coli were identified, among which 1 isolate (3.6%) was identified as E. coli EPEC. This isolate contained eae gene. Based on the serological response of somatic antigen (O) and flagella (H), the isolated Escherichia coli serotype was EPEC O119B14.
Conclusion: Although the prevalence of EPEC E. coli in children’s diarrheal samples from food outbreaks is low, the presence of these isolates is important and should be considered.

FAS and ACC dysfunction in visceral Adipose Tissue
Ehsan Khalili, Naghmeh Janat Alipour, Reza Meshkani, Karamolah Tolabi, Solaleh Emamgholipour,
Volume 14, Issue 2 (Jun & Jul 2020)
Abstract
Background and Aim: A great interest for determining the particular mechanisms underlying lipogenesis and adipogenesis has been raised among researchers in order to fight obesity. We aimed to investigate the gene expression of FAS and its role in regulation of lipogenesis and adipogenesis in visceral adipose tissues from obese and normal-weight subjects.
materials and Methods: A total of.participants including 40 obese patients(BMI≥35 kg/m2 according to WHO criteria) and 20 healthy subjects(BMI=18.8-24.9 kg/m2 according to WHO criteria) were recruited from who were referred to Erfan, Loghman Hakim, Sina, and Imam Khomeini hospitals bypass or sleeve gastrectomy surgeries in obese ones and elective surgery in controls. Participants were all woman aged from 20-50 years and postmenopausal subjects were not included in this study. Isolated total RNA from adipose tissue was used to synthesize complementary DNA(cDNA) and quantitative real-time PCR was performed for analyzing the gene expression of FAS, and ACC. Data was normalized to geometric means of GAPDH and β-actin expression levels.
Results: in VAT from obese subjects, gene expression of FAS was higher than in those from controls. We found a positive correlation between genes expression of FAS and ACC with obesity indices.
Conclusion: It appears that obesity is associated with dysregulation of FAS genes involved in lipogenesis and adpogenesis.

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