مجله دانشگاه علوم پزشکی اراک
سال بیست و یکم شماره 2 (پیاپی 131، اردیبهشت 1397)

Breast cancer is the most common cancer in women. It has been proven the association of cause of this disease with changes in several genes. One of the pathways associated with breast cancer is the folate reuptake pathway. The key enzyme of this pathway is coded by the TYMS gene. MicroRNAs control the expression of genes by binding to their regulatory regions. In this study, we evaluated changes in the regulatory region of TYMS gene with demographic characteristics (including the grade of cancer and metastasis) in breast cancer patients.
In this study, the regulatory region of TYMS gene was investigated using related bioinformatics software. After collecting cancerous samples and DNA extraction from blood samples of normal and patients, change in the miRNA binding region by digestion with NlaIII enzyme was assayed.
Bioinformatics studies showed that the restriction site of some of the endonuclease enzymes in the 3'-UTR of the TYMS gene is related to the binding region of miRNAs, including Hsa-miR-433-3p. The results indicated the correctness of the genomic purification process, the PCR and enzymatic digestion reaction. In this study, in the regulatory region, CC homozygote, AC heterozygote and AA mutant homozygote variant had differences with control group (OR: 1.3465, %95 CI: 0.7275 to 2.4923, p Studies have shown that some of polymorphisms in the key genes involved in cancer are directly related to their diagnosis and treatment process, and given the importance of timely diagnosis of cancer, the achievement of diagnostic biomarkers in breast cancer in the early stages will be important. Probably, the nucleotide change at the site of the microRNA binding site could be used as a diagnostic biomarker for degree of tumor progression.

Pseudomonas aeruginosa is an opportunistic gram-negative bacterium that is a major cause of nosocomial infections such as severe burns. Curcumin is the main component of turmeric (Curcuma longa) that has anti-cancer and anti-inflammatory effects. The aim of this study was to evaluate antibacterial effect of curcumin in ciprofloxacin resistant isolates of Pseudomonas aeruginosa through mexC and mexD gene expression.
In this descriptive-analytical study, Pseudomonas aeruginosa strains were obtained from hospitals and laboratories in Guilan province. After disc difusion and MIC tests, four ciprofloxacin resistant strains of Pseudomonas aeruginosa were treated by ciprofloxacin (1/2MIC) only (control sample) and in the combination with curcumin encapsulated in micelle nanoparticles (test sample). After 24h, RNA extraction and cDNA synthesis was performed. Then, the expression of mexC and mexD genes was evaluated quantitatively by Real-time PCR method in curcumin treated and un-treated cells
This study showed that combination of ciprofloxacin (1/2 MIC) with curcumin encapsulated in micelle nanoparticles led to approximately 50% of growth inhibition in Pseudomonas aeruginosa. In treated cells with curcumin and ciprofloxacin compared to treated cells with ciprofloxacin alone, mexC and mexD genes were significantly (p0.65 fold in three isolates and >0.1 fold in four isolates, respectively.
Our results suggested that curcumin encapsulated in micelle nanoparticles combined with 1/2 MIC value of ciprofloxacin inhibits the growth of Pseudomonas aeruginosa through reducing mexC and mexD expression.

Diabetes mellitus is associated with reductions in fertility indices. Interval training, on the other hand, through reducing the adverse effects of diabetes, exerts a positive impact on diabetic individuals.The aim of the present study was to examine the effects of ten weeks of High Intensity Interval Training (HIIT) on reproductive hormones and sperm parameters in Wistar rats with diabetes mellitus type 2.
In this experimental study, 36 Wistar rats with mean weight of 200±48 were randomly assigned to healthy control, diabetic control and diabetic high intensity interval training groups. The diabetic training group received ten weeks of HIIT training by treadmill following the induction of diabetes. Twenty-four hours after the last training session, left epididymis of the rats was examined for studying sperm parameters and blood serum samples were examined for evaluating reproductive hormones. Data were analyzed by one-way ANOVA and Tukey's post hoc test at a significant level of 0.05%.
Ten weeks of HIIT training reduces fasting blood glucose (p=0.001) and significantly increases serum testosterone (p=0.001), LH (p=0.042) and FSH (p=0.024) levels in the HIIT training group in comparison to the diabetic group. In addition, sperm parameters (sperm count, survival rate and motility) presented significant improvements compared to the diabetic group (p It seems that HIIT training can improve sperm count, survival rate and motility, through increasing serum testosterone, LH and FSH levels (reproductive hormones) in rats with diabetes mellitus type 2.

Bakcground: Application of Talc powder, Bleomycin and Tetracycline is among conventional treatments in recurrent malignant pleural effusion caused by malignant pleurodesis. The aim of this research is to estimate the effect and safety in application of betadine as a cheap and available chemical factor in treatment of pleurodesis.
In this semi-empirical study, all patients suffering from recurrent pleural effusion enrolled the study. In order to perform pleurodesis, after chest tube insertion, solution containing iodopovidon, lidocaine, and normal saline was injected into the pleural cavity through chest tube. All the patients were examined for the pleural effusion and pleurodesis recurrence during a 6-month follow-up.
In this study, a total number of patients was 50 among whom 23 were male (46%) and 27 were female (54%). In the 6-month follow-up, 40 patients (80%) were completely recovered and the recurrence of the pleural effusion was noticed in 10 patients (20%). Comparison of the success rate of recovery in terms of the gender of the patients showed no significant relation between gender and response to the recovery process (p=0.219). Of the total of 32 patients (64%) with chest pain after pleurodesis, 23 patients had complete recovery, and the incidence of chest pain in patients with no improvement was significantly higher (p=0.018).
Iodopovidone is a cheap, highly available material and of high efficacy in comparison to other sclerosant chemical substances, that provides an appropriate option in treatment of malignant pleural effusion.

The exhaustive and strenuous exercise may cause damaging effects to the heart. The present study aims to investigate the effect of Saffron stigmas aqueous extracts on serum cardiac troponin T and Creatine kinase MB isoenzyme of male rats following an exhaustive exercise.
64 Wistar male rats were assigned into following four groups (n=16) :1) without exercise 瘫ⶊ奞 water 2 ml, 2) without exercise aqueous saffron extract, 50 mg/kg distilled water 2 ml, 3) distilled water 2 ml 8 weeks exercise, and 4) aqueous saffron extract, 50 mg/kg 瘫ⶊ奞 water 2 ml 8 weeks exercise.At the end of experiment, half of the rats were killed immediately before exhaustive exercise; on the other hand remaining rats were killed immediately after performing an acute bout of exhaustive exercise on the treadmill. Serum cardiac troponin T and CK-MB isoenzyme levels were measured by ELISA and spectrophotometric methods, respectively. Data were analyzed by one–way ANOVA.
The results show that in all groups, cardiac troponin T and CK-MB isoenzyme serum levels were significantly increased following an exhaustive exercise. The lowest increase was observed in group 4 and the highest increase was observed in group 1 (p Based on the results of this study, it can be concluded that the use of saffron extract with aerobic training is more effective than aerobic exercise or saffron extract alone in modifying the increase of serum troponin T and CK-MB isoenzyme level following an exhausting exercise.

Multiple sclerosis (MS) is a myelinating inflammation and an impairment of neuronal cell regeneration in the central nervous system with unknown causes. The aim of this study was to evaluate serum melatonin levels in the treatment of patients with multiple sclerosis.

A prospective study and a Cohort were conducted on 40 MS patients with multiple sclerosis patients referring to instituate MS in Arak city for one year. In this study, patients who were treated with interferon-moderating drugs and who had not been treated for more than one year were randomly selected. A questionnaire containing demographic information and clinical information and separation of interacting factors was completed and completed. Clinical information included MRI, VEP, EDSS (Expanded Disability Status Scale) score, and clinical symptoms. The patients also received peripheral blood samplers 3 times in 6 months intervals to measure melatonin and their melatonin levels, and then the relationship between the data obtained from the patient's clinical data, EDSS, serum melatonin levels using the software SPSS with ANOVA and Post-hoc statistical analyzed.

In patients with MS, in spite of receiving drug treatment, the level of melatonin as an antioxidant decreased in second order sampling, which is consistent with the deterioration of the patient's clinical condition (EDSS test), and this is not observed in the control group.

According to the findings of this study, it can be argued that the level of melatonin is a measurable objective and measurable variable (with the help of ELISA) that can be used in the follow-up of these patients, along with clinical evaluations and questionnaires.

Multiple sclerosis (MS) is caused by thedestruction of myelin in central nervous system which leads to functional disabilities. Balancing problems are the most common dysfunctions and dizziness is known as its first sign in these patients.This study aimed to assessthe effects of vestibular rehabilitation by Cawthorne & Cooksey exercises on balance and the following disabilities caused by dizziness in patients with MS.
This study was a semi-experimental research with pre-test and post-test. Subjects of this study were 30 women with Multiple sclerosis regardless of the type of MS and dizziness that were divided into control and experimental groups. Experimental group performed the exercise protocol for a 12 week period and 3 times per day for 5-15 minutes. Berg balance scale (BBS) was used to access the balance and (Dizziness Handicap Inventory) DHI questionnaire was used to accessing the dizziness before and after intervention.
The results showed that, after finishing exercise protocol, in experimental group there was a significant difference in patient with MS, whereas there was no significant difference between pre and post-test in control group.
Cawthorne & Cooksey exercises as a non-invasive method can be an effective therapy to improving the balance and disability caused by dizziness in patients with MS.

In recent years, increasingly antibiotic resistance problem among Klebsiella isolates and side effects of antibiotics overuse have made researchers to study the antimicrobial activity of medicinal plants. The aim of this study was to study the inhibitory effect of ethanolic and aqueous extract of Vaccinium arctostaphylos on ESBLs producing Klebsiella strains.
Among 143 isolates of Klebsiella collected from some hospitals and clinical laboratories in Karaj, ESBLs producer were screened by phenotypic confirmatory test (PCT). One of them was identified based on 16S rRNA gene sequencing. MIC and MBC of ethanol and aqueous extracts of Vaccinium arctostaphylos were determined using microdilution method on selected ESBLs producing Klebsiella strains.
Resistance to ceftazidime, ceftriaxon and cefotaxime was observed in 14.7% of the isolates. 32 isolates (22%) were detected as ESBL producers. Results of MIC and MBC tests showed that ethanolic and aqueous extract of Vaccinium arctostaphylos have inhibitory effect on ESBLs producing Klebsiella strains,
The presence of antibacterial activity could be confirmed in most plant species used in traditional medicine in Iran and we should focus on combining traditional medicines and modern drugs.

Early diagnosis of prenatal illnesses and timely treatment of congenital anomalies has been the mainstay of the health system. In this study, our aim is to provide Roc curve multivariate modeling in detection of fetal abnormalities using associated markers in screening Down syndrome in the first and second periods of pregnancy.
This is a descriptive-analytical study that uses information from two sets of data. In the first set, 152 individuals, who had the results of the first- trimester and second screening tests at risk and in the second group, 75 individuals with normal results. The studied variables included the serum markers in the first- trimester and the second- trimester screening, auxiliary variables (includes demographic information). Statistical analysis was performed by using ROC regression, incremental value analysis and Stata 12 software.
In evaluating the value of each diagnostic test in the presence of auxiliary variables using logistic regression and rock curves, the results generally showed that in screening the first- trimester of PAPP-A and in the screening the second-trimester,Inhibin-A can be used alone as a diagnostic test.
Best diagnostic test in the first- trimester, respectively, PPAP-A, NT, FREE B-HCG and in the second- trimester of screening, respectively, Inhibin-A, HGG, UE3 and AFP were based on the area under the ROC curve. In addition, the most significant effect of the predictor variable on the outcome of the diagnostic test was family history.

The aim of this research was to investigate the effect of substructural exercises on serum brain-derived neurotrophic factor (BDNF) and attention function in boys with attention deficit hyperactivity disorder (ADHD).
The research method was semi-experimental with pre-test and post-test design with control group. Statistical population of this research included all elementary male students who in the early reviews, the symptoms of attention deficit hyperactivity disorder were diagnosed and referred for further study and treatment to the core of counseling and psychology of education in Sardar district in academic year 2016-2017. From the above community, 30 boys aged 7 to 12 years old were selected as the sample and randomly assigned to control and experimental groups. In order to recognize the attention deficit, the Conner's Parent's Questionnaire and clinical interview were used and to measure attention, Continuous Performance Test (CPT) and to measure the serum levels of BDNF, ESTOBIOPHARM kit were used. The experimental group subjects performed aerobic exercises with intensity 45-75% of maximal heart rate for 12 weeks in 36 sessions of training, 25-75 minutes, and data were analyzed using multivariate covariance.
The results showed that there was a significant difference between control and experimental groups in serum levels of BDNF and continuous attention function (p Regarding the results of this study, it can be concluded that endurance training increases the BDNF and thus improves attention in boy with attention deficit hyperactivity disorder (ADHD).