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This study has been performed on show the incidence of sensory neural hearing loss (SNHL) in patients with chronic Otitis Media (COM) and it’s different parameters. 207 patients with persistent or previous otorrhea have been examined. 70 patients had bilateral otorrhea and 137 patients had unilateral problem so overall 277 ears are evaluated. The BC greater than 15 dB without carhartnotch was the basis for diagnosis of SNHL. 66 patients had SNHL and of them 26 cases were bilateral so total number of ears with SNHL were 92 (The incidence of SNHL was 32.2%). 3 cases were due to other causes like TB (1 case) RM fistula (1 case) and squamous cell carcinoma (SCC) of middle ear (1 case). About 90.3% of cases had down slooping high frequency SNHL in their audiogram. In 47.6% of the ears with granulation tissue and cholesteatoma had SNHL while 28.7% of cases with chronic perforation revealed SNHL. Analysis of this study showed that there is a probability of increased SNHL during old ages the cases of prolonged and persisted otorrhea also revealed a higher incidence of SNHL. We didn’t disclose correlation between age and severity of SNHL.

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Background&Objective: Bisphenol A (BPA) is a xenobiotic estrogenic compound that are a monomer of some plastics (poly carbonate and epoxy resin) that are widely used in dental sealant, dishes and tableware. This compound has suspected to have estrogenic effects on reproductive system and related to endocrine disrupting chemicals. In this present study we investigated possible low dose effects of BPA on testis weight and structure and prostate weight. Materials&Methods: Male wistar rats (12-13 week old) were administrated a daily intra peritoneal 10µg/kgbw/day, 50µg/kgbw/day, 100µg/kgbw/day dose of BPA for6 and 12 days and one day after last injection testis and prostate weighted and histological section of testes prepared( 5 micrometer ) and stained by H&E and weigert hematoxilin . All data were expressed as means±SE. two-way ANOVA and chi- quire was performed. Results: in compare with control group, testis and prostate weight of dose groups were decreased. Disruptions of epithelial layer cells of semniferous tubules were detected. Conclusion: The present study showed that BPA at low doses affects histological structure and weight of testis and prostate, in the adult wistar rat.

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Background&Objective: To assess the effect of a lateral – wedge insole with subtalar supporting on the femorotibial angle in patients with varus defomrity of the knee. Materials&Methods: The efficacy of a wedged insole with subtalar supporting and that of traditional wedge insole shoe insert were compared. 20 outpatient with knee osteoarthritist were randomized to be treated with either the supported or traditional inserted insole. In both group , the baseline and 2 month koos scores for subjective knee pain and ADL and quality of live and symptoms were compared. Results: At the baseline , there were no significant difference in the femorotibial angle and pain and ADL, quality of life and symptoms, the 10 subjects wearing the subtalar supporting demonstrated a significatly increase femoretibial angle and koos scores without pain compared with insole group, there were no significant difference between twe group in pain after treatment. Conclusion: These results suggest that an insole with a subtalar supporting maintained the valgus correction of the, femoretibial angle in patgle in patients with varus knee OA for 2 months.

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Background and Objective: The growing development progress of electronic industries and the increasing use of electrical appliances have led to higher rate of exposure of people to electromagnetic field (EMF). Thus, in this study we investigated the effect of EMF on morphometric indices of epididymis and vas deferen in mice. Materials and Methods: In this experimental study, 30 BALB/c male mice were selected and divided into three control, sham and experimental groups. Experimental group were exposed to 50 Hz, 0.5 mT EMF for 4 hours per days, 6 days per week for 8 weeks while the animal in control and sham groups were not exposed to EMF. After the exposure period, the mice were dissected and left testis was removed and weighted. Samples of epididymis and vas deferen in all groups were taken and were processed for routine light microscopic studies. The diameters of epididymis and vas deferen and the height of epithelial cells in all groups were compared using ANOVA and Tukey tests. Results: The mean diameter of epididymis in EMF group significantly decreased compared to the control group (P<0.05). The mean diameter of vas deferen, the height of epithelial cells in epididymis and vas deferen in EMF groups significantly decreased compared to the control and sham groups (P<0.05). In addition, the weight of testes in EMF group significantly decreased compared to the control and sham groups (P<0.05). Conclusion: This study showed that the EMF exposure for long time could have hazard effect for the male reproductive system by decreasing the diameter of reproductive ducts, the length of epithelial cells and weight of testes.

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Background and Objective: Patello femoral pain syndrome is one of the most common orthopeadics complains, which effect athletes, militaries and ordinary people. The symptoms is idiopathic disease, but one of the most important reason for this disease can be the structural problem of lower limb and one of the efficient method of conservative treatment of patients with patello femoral pain syndrome can be using neoprene palumbo and geno direxa stable orthoses, but there is only a few experimental researches supporting the effects of these orthoses. This study was designed to determine the effects of neoprene palumbo and geno direxa stable on pain and daily activity of patients with patello femoral pain syndrome. Materials and Methods: In this clinical trial study 30 male patients (18-40 years old) with patello femoral pain syndrome randomly were divided in 2 groups of 15 patients. Which were placed in Neoprene palumbo and Geno direxa stable orthoses groups respectively. The pain intensity and activity of daily living joint rigidity were assessed before, during and 3 weeks after treatment by visual analogue scale (VAS) and KOOS questionnaire. Following both orthoses application data were analyzed using pair and independent t-test. Results: In both groups the mean of pain intensity decreased and daily physical activity increased after treatment (P<0.05), but there was not significant difference between neoprene palumbo and geno direxa stable methods, on pain and daily physical activities. Conclusion: This study indicated that Neoprene palumbo and geno direxa stable orthoses improved the sign of patello femoral pain syndrome including pain intensity and daily life, activity.

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Background and Objective: Androgens are among the causative factors in preeclampsia. This study was done to compare the serum androgens and progesterone in preeclampsia and normal pregnancy. Materials and Methods: This case-control study was done on 30 preeclamptic and 30 healthy pregnant women in Gorgan, Iran. Higher or equal to 140/90 mmHg and proteinuria equal or more than +1 in dip stick test in the third trimester of pregnancy were considered as the diagnostic criteria of preeclampsia. Progesterone, free and total testosterone, and dehydroepiandrosterone sulphate (DHEA) were measured by ELISA method. Results: Total testosterone level was 1.8±0.3 ng/ml and 1.3±0.9 ng/ml in cases and controls, respectively. This difference was not significant. Progesterone was lower in cases (95±46.9 ng/ml) than in controls (165.4±75 ng/ml) (P<0.01). Free testosterone and DHEA were 5.6±2.3 ng/ml and 1±0.5 ng/ml in cases, respectively which was significantly higher than the controls (3.2±1.5 ng/ml and 0.7±0.4 ng/ml, respectively) (P<0.045). Conclusion: Serum level of free testosterone, DHEA and progesterone increased and reduced respectivley in preeclampsia.

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Background and Objective: Children constipation is one of the common causes of abdominal pain. Cow´s milk in children diet is suggested to be one of the main cause of chronic constipation. This study was performed to determine the effect of cow´s milk elimination from children diet with chronic constipation. Methods: This quasi-experimental study, was performed on 80 children with chronic constipation. Rome-III criteria were considered for disease diagnosis. Cow’s milk was eliminated for three weeks from children’s diet and the clinical symptoms in children were surveyed, subsequently. Results: Constipation was cured in 33.8% of children as result of cow's milk free diet. The rate of treatment response in affecting children whom their disease in began under 2 years of age (52.6%) was significantly higher than others (16.6%) (P<0.05). Children treatment was not significantly related to child’s gender and amount of milk consumption. Conclusion: Eliminating of cow's milk from the diet improves the chronic constipation in children.

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Background and Objective: Chronic subdural hematoma is a common disease among patients whom admitted in neurosurgical departments. Although therapeutic strategy of this disease is simple but prognosis of patients is not easily predictable. This study was done to determine the Prognostic factors in patients with chronic subdural hematoma underwent Burr hole trephination surgery method. Method: This descriptive - analytic study was done on 90 patients with chronic subdural hematoma whom treated with Burr hole trephination surgery technique in Urmia, Iran during 2009-13. Age, sex and size of hematoma, mid-line shift, density and location of hematoma, level of consciousness before surgery, history of disease, physical examination, post-operative brain expansion and post-operative pneumocephalus were recorded for each patient as possible effective variables in outcome. Patients prognosis were evaluated by modified Rankin scale was considered as follow: 0-1=good, 2-5=bad. Results: 63 (70%) and 27 (30%) of patients were in good and bad prognosis, respectively. Age older than 70 years, level of consciousness less than 12 and history of diabetes were the most significant variables being correlated with bad prognosis after surgery (P<0.05). Conclusion: Elderly age, level of consciousness prior to surgery and diabetes were correlated with bad prognosis in patients with chronic subdural hematoma underwent Burr hole trephination surgery method.

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Background and Objective: Anti tuberculosis drugs therapy is the most effective method for controling the tuberculosis (TB). Early detection and appropriate treatment can prevent the TB-drug resistance. This study was carried out to determine the complications leading to hospitalization due to consumption of anti-TB drugs in patients with tuberculosis. Methods: In this descriptive-analytic study, 1550 records of patients with TB in urban and rural health centers of Gorgan, north of Iran were assessed during 2007-12. Checklist consists of demographic and clinical data for each patient was recorded in a questionare. Results: 44 cases experienced the complications of anti-TB drugs. 27 (61.4%) of cases with complications were women. 77.3% and 22.7% of patients affected with pulmonary and extra pulmonary tuberculosis,respectively. 38.6% of patients were diabetic. The hepatic complication was seen in 37 cases (84.1%). Skin and other complications were seen in 5 and 2 cases, respectively. There was not any relationship between drug complications and other disases. Conclusion: Hepatic damage is the most common complication leading to hospitalization in tuberculosis patients using anti-TB drugs.

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Background and Objective: With respect to the antioxidant role of melatonin and retinoic acid, it seems to be effective both in the maturation and embryonic development. This study was done to investigate the effect of combination of melatonin and All-Trans retinoic acid (RA) on maturation, fertilization and embryonic development of immature mouse oocytes. Methods: In this experimental study, cumulus - oocyte complex (COCs) were recovered from 4-6 week old female mice NMRI and were divided into 6 maturation medium groups including control, sham, experiment 1(melatonin 100 nM, 1 and 2 µM), experiment 2 (retinoic acid 1, 2, 4, 6 µM), experiment 3 (melatonin 2 µM+RA 4 µM), experiment 4 (Mel 100nM + retinoic acid 4µM). The maturation rate was recorded after 24 hours of culture in a humidified atmosphere of 5% CO2 at 37°C. The matured oocytes were fertilized with sperm. Fertilization and embryonic development rates to the blastocyst stage were recorded. Results: Maturation rate in the control and sham groups were 50.6% and 49.4%, respectively. Maturation rate were 54.3%, 54.8%, 59.9% in melatonin group with concentrations of 100 nM, 1 and 2 µM, respectively. Maturation rate were 51.6%, 51%, 59% and 49.6% in t-RA group with concentrations of 1, 2, 4, 6 μM. Maturation rate were 60.4% and 54.2% in the experiment 3 and 4 groups, respectively. The maturation rates in the melatonin 2 µM, retinoic acid 4 µM and experiment 3 significantly increased in compare to control (P<0.05). The embryonic development rate in the melatonin with 100nM concentration and 4 µM of retinoic acid increased significantly compared to controls (P<0.05). Although, embryonic development rate in experiment 3 was higher than control, but lower in compare to melatonin 100 nM and the retinoic acid 4 µM. The embryonic development rate in experiment 4 significantly increased in compare to control (P<0.05). Conclusion: Combination of melatonin and All-Trans retinoic acid in medium culture increase maturation rate and improved embryonic development in dose dependent manner.

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Background and Objective: Smoking is one of the important risk factors for many diseases and increases the premature death.Transtheoretical models is one of the behavioral models for behavior understanding specifically in addictive behaviors. This study was done to evaluate the application of transtheoretical model to determination of smoking behavior among smokers.

Methods: This descriptive - analytical study conducted on 450 male smokers in Gorgan, northern Iran during 2014. Data gathering instruments were Diclemente smoking stages of change, Velicer decisional balance and temptation, Prochaska processes of change measurements along Fagerstrom test for nicotine dependency.

Results: Based on the stages of changes, 39.1%, 13.8%, 42.4%, 2.7% and 2% of subjects were in precontemplation, contemplation, preparation, action and maintenance stage, respectively. There was a significant relationship between stages of change with all transtheoretical model variables and nicotine dependency (P<0.05). Cons of smoking, self-reevaluation, self-liberation, and social liberation had the highest effect while helping relationship had the lowest effect.

Conclusion: Cons of smoking, self-reevaluation, self-liberation, and social liberation had the strongest predictors of smoking stages movement. Helping relationship had the lowest predictor of smoking stages movement.

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Background and Objective: Golestan province in north of Iran is known as a high risk area for cancers. Differences in climatic characteristics including rainfall, temperature and humidity may affect the diet, types of vegetation and lifestyle of residents in this area. The aim of this study was to determine the relationship between rainfall and temperature with the incidence of cancer in Golestan province, north of Iran.
Methods: In this descriptive-analytic study, climatological data and Data of cancer incidence in Golestan province, north of Iran were collected during 2005 and 2010.
Results: Higher incidence of cancers was seen in areas with dried climate including Eastern parts of the province and the Turkmen sahra (P<0.05). A significant negative correlation was found between the rainfall and the incidence of esophageal cancer (r=-0.64, P<0.04). The average rainfall was significantly lower in high-risk area for esophageal cancer than in low-risk area (P<0.05). The incidence of gastric cancers was significantly higher in dry climate than humid climates (P<0.05). The incidence of esophageal and intestinal cancers was non-significantly higher in dry climate than humid climates. The incidence of breast cancer was non-significantly lower in dry climate than humid climates.
Conclusion: This study showed that higher incidence of cancers in dry climates when compared with humid climates. Also, environmental factors may play a role in high incidence rate of cancers in this area.

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Background and Objective: Helicobacter pylori infection is one of the most common chronic bacterial infections all over the world, particularly in the developing countries. LeoA gene plays an important role in pathogenesis, and the main role of this gene is to increase the bacterial toxin secretion. This study was conducted to isolate and clone the leoA gene in a pEGFP-C2 expression vector and evaluate its expression in eukaryotic system.
Methods: In this laboratory study, the leoA gene was amplified from the standard strain of Helicobacter pylori genome (ATCC 43504) by PCR method. It was then inserted into the pTZ vector by cloning T/A. Sub cloning of this gene was performed in a pEGFP-C2 expression vector with a ligase enzyme. The final structure of pEGFP-C2-leoA was transformed by electroporation in CHO (Chinese hamster ovary) cells and the expression of the leoA gene was evaluated by SDS-PAGE and RT-PCR.
Results: The results of PCR indicated that the 1758 bp fragment was amplified from the leoA gene. Cloning of this gene was performed successfully in pTZ and pEGFP-C2 vectors, respectively. The enzyme digestion with two KpnI and SacII enzymes, as well as sequencing, confirmed the accuracy of gene cloning. The observation of the protein product of the leoA gene in CHO cells indicated the successful expression of the LeoA gene in the eukaryotic system of Helicobacter pylori.
Conclusion: The final construct of pEGFP-C2-leoA had a successful expression of the leoA gene in animal cells.

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Background and Objective: Increasing interest has been devoted to the design and discovery of more effective anticancer agents in current medicinal chemistry because of the high prevalence of cancer in different societies and resistance occurrence to existing anticancer drugs. The aim of this study was to evaluate the anticancer activity of two novel quinoline compounds (RQ1 and RQ2) on human gastric cancer cells.
Methods: In this descriptive - analytic study, the anticancer effects of the compounds were evaluated by MTT assay. This test was performed on two categories of gastric cancer cells sensitive to Danorubicin (EPG85-257P) and resistant to Danorubicin (EPG85-257RDB). The arresting mechanism in the G2 / M phase of the cell cycle and the induction of apoptosis by the compounds was investigated using the PI test and flow cytometric analysis.
Results: Novel quinoline derivatives RQ1 and RQ2 showed good anticancer effects on both sensitive and resistant human gastric cancer cells (IC50=25-38mM). Compound RQ2 showed the most cytotoxic activity on the Danorubicin-sensitive cancer cell line with IC50=25mM. The percentage of Danorubicin resistant gastric cancer cells (EPG85-257RDB) in the G2 / M phase at 25mm concentration of RQ1 and RQ2 was 35.95 and 34.88, respectively, and 41.1% and 42.89% of these cells, after treatment with 50mm concentration of RQ1 and RQ2 arrested at the G2 / M phase respectively.
Conclusion: The two novel quinoline compounds, RQ1 and RQ2 showed strong anticancer effect on both sensitive and resistant human gastric cancer cell lines.

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Multiple sclerosis (MS) is a chronic and multiphasic autoimmune disease which affecting the nervous system. Recently, neurotrophic factor secreting cells have been proposed as one of the best sources for cell therapy in MS disease. Therefore, this review study was done with aimed to introduce neurotrophic factor secreting cells and the role of neurotrophic factors in the treatment of MS. The present study, based on the Systematic Review and using multiple sclerosis, neurotrophin and cell therapy keywords, 98 articles were searched from various databases including Pubmed, SID, Springer, SinceDirect Magiran, Web of Sciences and the Google Scholar. After removing irrelevant and repetitive articles, 50 articles were selected. The results of these studies showed that cell-based therapies in MS have been designed with the aim of replacing destroyed cells or with the goal of neuronal support using neural growth factors. Neurotrophic factors secreting cells with the ability to migrate to neurological lesions and secretion of neurotrophic factors can play a major role in supporting neural tissue and preventing its destruction. These factors, through tyrosine kinase receptors, have a variety of effects on the development and proper functioning of neurons. On conclusion, neurotrophic factor secreting cells due to the secretion of a wide range of neural growth factors which required for neural development might be one of the ideal cell sources for cell-based therapy in MS disease.

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Background and Objective: The incidence of tuberculosis in Golestan province in northern Iran is 26.7 cases in 100000 persons. Lack of energy and nutrients is one of the reasons for the increased risk of tuberculosis. Malnutrition is an important cause of high mortality in the Tuberculosis (TB) population. With decreasing level of visceral proteins, anthropometric indices, and micronutrients increase the risk of mortality. This study was performed to determine the status of nutritional status of patients with Tuberculosis in Gonbad-e-Kavous, north of Iran during 2014.
Methods: This descriptive-analytical study was performed on 45 pulmonary tuberculosis patients with mean age of 57±20 living in Gonbad city, north of Iran during 2014. Demographic information and history of tuberculosis, body mass index, albumin, hemoglobin, total protein and blood cell count and food intake were recorded for each patient.
Results: 58% of patients were women. 52% of patient was resident in rural area. There was a significant difference in terms of body mass index and previous history of tuberculosis in patients with different disease intensities. Among patients with different disease intensities, the difference in the distribution of anemia severity was not significant. There was no significant difference between the two sexes in terms of disease severity distribution. According to the fitted regression model, the age variable, even in the presence of other variables, had a significant effect on disease severity (P<0.05).
Conclusion: With increasing disease severity, patients' BMI decreases and the severity of malnutrition and anemia increases. The severity of the disease increases with age. Tuberculosis patients need nutritional support.

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Background and Objective: Middle age is associated with various biopsychosocial changes. Sexual health is one of the most important aspects of health, which is less addressed in middle age. The study aimed to determine the relationship between sexual self-concept and sexual health in middle-aged women in Gorgan, Iran.
Methods: This descriptive-analytical study was carried out on 428 eligible married women (mean age: 46.38±5.46 years) who had electronic records in one of the comprehensive health centers of Gorgan, Iran. Data collection was done in 2019 using a demographic checklist, the Persian version of Snell’s multidimensional sexual self-concept questionnaire, and the sexual health of middle-aged women scale.
Results: The mean score of sexual self-concept was 115.10±26.88 in the positive domain, 18.09±11.22 in the negative domain, and 39.92±11.88 in the situational domain. The mean score of sexual health was 129.18±18.71. There was a significant positive correlation between sexual health and the positive (r=0.67, P<0.001) and situational sexual self-concept (r=0.63, P<0.001). There was also a significant inverse correlation between sexual health and negative sexual self-concept (r=-0.48, P<0.001).
Conclusion: This study showed that the sexual health of married middle-aged women has a direct relationship with the positive sexual self-concept and an inverse relationship with the negative sexual self-concept.
 

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Background and Objective: The application of different nanoparticles using green synthesis is increasing due to fewer complications. This study was conducted to identify the effect of cobalt ferrite nanoparticles synthesized with sumac extract on changes in biochemical and histological factors in rats.
Methods: In this experimental study, 30 five-month-old male Wistar rats with an approximate weight of 250-300 mg/kg of body weight were divided into three groups: The control group (saline receiving), the experimental groups receiving intraperitoneal cobalt ferrite nanoparticles synthesized with sumac extract at a dose of 10 and 20 mg/kg of body weight. Serum and tissue samples (liver, kidney, and spleen) were isolated. Serum concentrations of urea, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and creatinine were determined. The photometric method was used to measure liver enzymes, the calorimetric method without omitting proteins based on the Jaffe method was used to measure creatinine, and the urease-glutamate dehydrogenase (GLDH) method was used to measure urea. Tissue samples were assessed by hematoxylin-eosin staining. Transmission electron microscopy (TEM) and scanning electron microscope (SEM) microscopic studies were used for microscopic investigations.
Results: No statistical significance was observed in blood samples and factors (urea, creatinine, ALT, and AST) in the experimental groups compared to the control group. Similarly, in the morphological investigation, the size of the liver, kidney, and spleen of the groups receiving cobalt ferrite nanoparticles synthesized with sumac extract was normal compared to the control group.
Conclusion: Cobalt ferrite nanoparticles synthesized with sumac had no toxic effect on the rats’ liver, spleen, and kidney tissues.