ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ)
Year:2017 | Volume:19 | Issue:11 (116)|Papers Count:12

Background: High blood pressure increases various cardiovascular events about 2 to 3 times in a person. The purpose of this study is to recognize the effect of a course of pilates exercise on hypertension, nitric oxide, and resting heart rate in the eldrlymen with hypertension.Materials and Methods: Subjects of this quasi-experimental research included 30 elderly men with hypertension grade one(in the range of systolic- diastolic 140/90 to 159/99mm Hg) who participated voluntarily and accessibly in the study and were divided randomly into two experimental peer (15 people) and control (15 people) groups. Weight, height and BMI of subjects were 75±80, 170±175 and 25-26, respectively. The experimental group did selected exercise of Pilates for eight weeks (three one-hour sessions per week). Desired variables of the subjects of both groups were evaluated 24 hours before the start of exercise and 24 hours after the last session. Data analysis was conducted using dependent and independent t-test by SPSS16 statistical software at the significant level of p≤0.05.Results: The research results showed that the eight-week pilates exercise gave rise to reduction in blood pressure (p≤0.05) as well as resting heart rate (p≤0.05) and to increase in nitric oxide of elderly men with hypertension (p≤0.05).Conclusion: The eight-week pilates exercise reduced blood pressure and resting heart rate and increased the production of nitric oxide in elderly men. So, it seems that the regular physical exercise can be effective as a preventive factor in the outbreak of cardiovascular diseases of the elderly men.

Background: Aminoglycosides are used as antibiotics in combination with beta-lactamas for many treatments of staphylococcal infections. Development of resistance in resistant strains can be done by enzymes produced by effective genes that cause the destruction of aminoglycoside antibiotics. The aim of this study was to investigate the prevalence of the aac (6') Ie / aph (2"), aph (3') - IIIa1, ant (4') - Ia1 genes and mecA in staphylococcus strains which play an effective part in the resistance of aminoglycosides.Materials and Methods: in this descriptive cross-sectional observation, 113 clinical samples including 68 isolate of Staphylococcus epidermidis and 45 isolate of Staphylococcus saprophyticus of 459 clinical samples were identified by biochemical and molecular tests. The antibiotic susceptibility pattern of isolates was determined using MIC method by E-test strips. Then, to determine the presence of genes responsible for resistance to aminoglycosides, gene-specific primers were used.Results: Of 68 isolates obtained from saprophyticus Staphylococcus aureus, 39isolates(57.35%) were mecA gene. As well, 13 isolates (19.11%) have aac (6') Ie / aph (2") gene, 9 isolates (13.23%) have aph (3')- IIIa1 gene and 7 isolates (7.3%) have ant (4')- Ia1 gene. Of 45 isolates of Staphylococcus saprophyticus, 23 isolates(51.11%) have mecA genes, 8 isolates (17.77%) have aac (6') Ie / aph (2") gene, 4 isolates (8/8%) have aph (3') - IIIa1 gene and 2 isolates (4.4%) have gene ant (4') - Ia1 gen.Conclusion: Statistical analysis showed that the prevalence of aminoglycoside genes is more among strains resistant to methicillin and this would suggest that methicillin-resistant strains are easy situation for the acquisition of resistance to other antibiotics.

Background: In the recent years, introducing plant materials with the ability to destroy or control of biofilm formation of Streptococcus mutans is highly regarded.This study was planned to investigate the anti-bacterial activity and biofilm inhibition of Satureja Khuzestanica Jamzad against biofilm and single form of S.mutans.Materials and Methods: The plant material collected, air dried and powdred. Then thier methanolic extract prepared by maceration method.The concentrated extract then diluted by sterile phosphate buffer.The anti-bacterial and biofilm inhibition activity of the extracts evaluated by dick diffiusion and micro titeration method respectively. Also, bioinformatic study of glucansucrase inhibition by dominant plant compounds of S.Khuzestanica Jamzad investigated by molecular docking method using Auto dock4 software.Results: The results revalued that all tested extracts especially leaf ectract had significant ntibacterial activity against single form of S.mutans.Results also showed that leaf and stem extract had most and least biofilm inhibition with 70 and 13 presend inhibition, respectively. The bioinformatics results also confirmed that studied phytochemicals especially gama- terpinen, carvacrol and beta-bisabolene can effectively inhibit the glucansucrase.Conclusion: The results of present study showed that S.Khuzestanica Jamzad had significant antibacterial activity against single form of S.mutans and gama-terpinen, carvacrol and betabisabolene are most effective compounds in biofilm inhibition.

Background: Ureaplasma and M. genitalium species belong to a kind of bacteria that are sexually transmitted and are the possible cause of pelvic inflammatory disease and nongonococcal urethritis, and et al. The aim of this study was to determine the urea plasma and Mycoplasma genitalium species frequency in women with vaginal infection and various sexual partners who referred to women's health promotion and treatment center in Arak.Materials and Methods: Endocervical swab samples from 110 women with vaginal infections referred to women’s health promotion and treatment center in Arak, were prepared. Patients’ personal information and identities during reception process were registered. The samples were transferred to the laboratory in the transport environment and after DNA extraction, were evaluated according to Real- time PCR assay.Results: Urea plasma and Mycoplasma genitalium bacteria existed in 96 (87.27%) and 4 (3.63%) of patients, respectively. Among them, 4 cases had both bacteria infections. The amount of isolation in young women between 30-39 years old was more than others.Conclusion: The results show that the colonization of urea plasma species in adult women is 40-80% and in studied group is 87.27%. These results indicate that with due attention to the increasing number of sexual partners and the increase of sexual activity, the urea plasma colonization of women will increase. In view of the potential influence of mycoplasma species on side effects resulted from pregnancy infection of mothers and mortality, on-time diagnosis and treatment will be increasingly essential.

Background: Probiotics are known as a factor for prevention of infectious diseases such as urinary tract infection (UTI). The present study aimed to investigate the positive effects of probiotics on urinery truct infection of cateterized intensive care unit patients.Materials and Methods: In a triple blind clinical trial, 125 cateterized intensive care unit patients were randomly selected and divided into two groups, Treatment group (n=63) was well matched with placebo group (n=62) for age and sex and duration of admission. Case group received one lactocare capsule for 10 days and control group with a same method received placebo for 10 days.In both groups urine analysis and urine culture were measured with a same method at the first day and then twentieth day and finally data were analysed with t-test.Results: The incidence of urinary tract infection between treatment and control group (respectively 17.4% and 22.5%) had no statistically significant difference (p=0.672). But, in terms of sex, incidence of urinary tract infections in women compared to men with the same condition was significantly different (p=0.002). In treatment group with long term cathetrization, urinary tract infections significantly were significantly different (p=0.041).Conclusion: Administration of lactocare capsule has no statistically significant impact on the incidence of urinery truct infection of cateterized intensive care unit patients. In comparsion of cateterized men and women receiving probiotics, the reduction of urinary tract infection in women was more than in men. Probiotics had preventive effects on long term catheterization.

Background: Protein tyrosine phosphatase 1B (PTP1B) is a key enzyme in dephosphorylation of the insulin receptor (IR) and it is a central factor to induce the insulin resistance. The purpose of this study was to evaluate the effect of 12-week aerobic training on protein tyrosine phosphatase 1B gene expression and insulin resistance in diabetic rats.Materials and Methods: In this study, 16 Wistar rats were divided into aerobic training and control groups. After inducing diabetes intra protaneally, aerobic training group performed training protocol for 12 weeks and 5 session/week. The duration and speed of each session increased progressively as 18 to 26 m/min and 10 to 55 min, respectively. Then, blood and tissue (from gastrocnemius) sampling were carried out in diabetic rats. Insulin resistance markers and PTP1B gene expression were evaluated by commercial kits and Real-Time PCR method, respectively.Results: Findings showed that PTP1B significantly was decreased in diabetic rats of aerobic training group (p=0.0001). Also, glucose and insulin resistance significantly was decreased in aerobic training groups (p=0.02 and p=0.006, respectively). However, insulin in control rats was significantly increased (p=0.015).Conclusion: It seems that, current aerobic training protocol has capability to decrease PTP1B and insulin resistance in diabetic rats. Furthermore, the direct correlation between PTP1B and insulin illustrated that any changes in insulin resistance due to exercise training associated with diminution of negative regulation of insulin signaling pathway.

Background: Prevalence extension of antibiotic resistant bacteria has raised concerns about control of infections especially nosocomial infections. Many attempts have been done to replace antibiotics or limit their use. The use of antimicrobial agents produced by bacteria as antibiotic replacement has been promising in recent years. The goal of this study was to isolate Bacillus strains and evaluate their antimicrobial activity against some standard pathogens and clinical antibiotic resistant strains.Materials and Methods: In the present study, Bacillus strains were isolated from various resources and identified by 16S rDNA PCR method. Then, the phylogenetic tree of the isolates was constructed and antimicrobial activity of the isolates was investigated against some standard pathogens and clinical antibiotic resistant strains using spotting and well diffusion methods.Results: Eight Bacillus strains were isolated from 15 different samples. Based on the molecular identification, the isolates were identified as B. pumilus, B. coagulans, B. licheniformis, B. endophitycus and B.amiloliquefaciens. The results showed that isolates have antimicrobial activity against meticilin-resistant Staphylococcus aureus, vancomycin resistant enterococci, Klebsiella, Acinetobacter, Salmonella, Shigella, Listeria, Streptococcus and Escherichia coli.Conclusion: In this study, isolated Bacillus strains produced antimicrobial agents against pathogens and antibiotic resistant strains and inhibited their growth.

Background: Leishmaniasis is a protozoan parasitic disease and a global health problem. The aim of this study is to diagnose the parasitic infection in humans for epidemiological identification and providing control programs using proprietary co-designed primers in three species of Leishmania.Materials and Methods: 30 common Leishmania isolates were gathered from different centers in Iran. Having been cultured in RPMI-1640 Medium, DNA was extracted and the gene ITS2-rRNA was amplified by PCR. The amplicons were examined by electrophoresis on agarose gel 2%. Also, in FLASH PCR method, a specific probe and florence colour were used to investigae the amplicon existence on sample.Results: The results of the investigations by PCR and FLASH PCR methods show that these methods are sensitive and specific for diagnosis of Leishmania.Conclusion: In this study, identification of Leishmania parasite using specific primer pairs was successful and TaqMan could be one of the most sensitive diagnostic methods to identify parasite load for the ITS2 region of Leishmania.

Background: The present research aimed to measure the effectiveness of Eye Movement Desensitization and Reprocessing (EMDR) on reducing the severity of symptoms of post-traumatic Stress Disorder (PTSD) and Stuttering in a four-year-old child post-traumatic stress disorder in children is one of the disorders relating to trauma and stressful factors, also, stutterring or word fluency disorder is a nerve growth disorder.Materials and Methods: This research design was conducted as a case study with a multiple baseline design. Participant in this research was a four-year- old child with Diagnostic Posttraumatic Stress Disorder and Psychogenic Stuttering. He had been placed under the intervention with EMDR at Shahid Birjand Counseling Center. The instruments used for this research included demographic researcher- made questionnaire, the third edition of stuttering severity test, the scale of parents’ report of post- traumatic Symptoms and child’s report of posttraumatic Symptoms. Data analysis was done through graphic and descriptive analysis. The data was collected as base line and during the treatment as well as after the treatment and follow- up (in terms of 3 and 24 months).Results: Means percentage improvement (MPI) to reducing the severity of post-traumatic symptoms was achieved as %74.66 and it was %56.06 for reduction of the severity of stuttering and they continued to maintain in the follow- up period.Conclusion: Results showed that EMDR method had affected on reduction of the severity of post- traumatic stress disorder symptoms and stuttering intensity.

Background: Biological and epidemiological data indicate that the levels of vitamin D maybe affect the breast cancer risk. Vitamin D plays an important role in cell proliferation, apoptosis and tumor growth suppression. Vitamin D receptor is a critical mediator for the cellular reactions of vitamin D. Some of the epidemiological studies, reviewed the relationship between VDR gene polymorphism ApaI and breast cancer, but the controversial findings have been achieved.Materials and Methods: In this study, a population-based case-control study including 140 patients and 160 healthy individuals of women in Markazi Province were evaluated using PCR- RFLP approach. Genomic DNA was extracted from blood samples using the salting-out procedure. Polymorphism of interest was determined by PCR-RFLP method using ApaI enzyme and statistical analysis was performed by SPSS software.Results: Based on the results of this study, distribution of AA genotype in cancer and control groups was, 38.6 and 26.87, for AC genotype 55.00 and 66.87, and finally for CC genotype 6.43 and 6.26 respectively. The results of this study showed no association between ApaI polymorphism of the VDR gene and breast cancer (OR=0.903, CI=95%, 0.29-2.95.)Conclusion: In this study, we found no association between ApaI polymorphism and breast cancer, which are consistent with the findings of some other researchs. It is necessary to examine a larger population to achieve more definitive results.