JOURNAL OF GORGAN UNIVERSITY OF MEDICAL SCIENCES
Year:2011 | Volume:13 | Issue:2 (38)|Papers Count:20

Background and Objective: Lead threaten living creature’s life as air pollutant and causes several diseases such as degenerative disease of nervous system. This research was conducted to determine the effect of Curcumin on BDNF changes and oxidative/antioxidative process in rat’s hippocampus which exposed to Lead acetate.Materials and Methods: In this experimental study, 40 male Wistar rats were randomly assigned to four groups of ten: Base, Sham (control), lead and Curcumin + Lead. lead and Curcumin + Lead groups received 20 mg/kg lead acetate and Curcumin + Lead group also received 30 mg/kg Curcumin, peritoneally for 8 weeks (3 days in weeks). MDA (oxidative stress biomarker) and TAC (total antioxidative capacity) levels were measured by TBARS and FRAP methods, respectively, and hippocampus BDNF level was measured by ELISA method in rat hippocampus region. Data was analyzed by one-way ANOVA test and Tukey at P<0.05 level.Results: Injection of lead acetate significantly increased MDA, non-significantly decreased hippocampus BDNF and significantly decreased TAC levels in the Lead group compared with control groups. On the other hand, curcumin administration led to non significantly decreased MDA, non significantly increased BDNF and significantly increased TAC levels compared with other groups (P<0.05).Conclusion: This study showed that Curcumin adminstration in long term lead acetate-treated male Wistar Rats did not increased BDNF of hippocampus, but it prevent the reduction of BNDF due to lead-intoxification.

Background and Objective: Memory is an especial ability of brain in which saves the information and reuptake it. The memory is depended on hippocampus and amigdal. The neuronal density of hippocampus and amigdal have direct effect on their physiological functions. Cannabis sativais belongs to Cannabinaceae family that Tetrahidrocanabinol is important component of this plant. The aim of this study was to assess the effect of alcoholic extract of Cannabis sativaon CA1, CA2 and CA3 subfeilds of hippocampus neuronal density in male Rats.Materials and Methods: This experimental study was performed on 18 male Rats with (250-320 gr) weight and 3 month old in faculty of science, Islamic Azad University of Mashhad, Iran (2010-2011). At first the alcoholic extraction was provided by the soxhlet method of the seed of this plant with coded 2548. Eighteen male wistar Rats were allocated into 2 experimental groups (25, 75 mg/kg of alcoholic extract of Cannabis sativa) and one control group. Alcoholic extract of Cannabis sativawas injected intraperitonealy (I.P.) in experimental groups for two weeks (every week one injection). After four weeks animal was decapitated and their brain dissected, fixed in 10% formalin, sectioned in 7mm thickness and stained by toluidin blue. By applying stereological techniques and systematic random sampling scheme the neuronal density of hippocampus were estimated.Results: Neuronal density in control and treated with alcoholic extract (25, 75 mg\kg) CA1 was 17982, 26750 and 22801 respectively. Neuronal density in CA2 was 19171, 26750 and 22801 respectively and also in CA3 was 19391, 24043, 28571 respectively. Neuronal density in CA1, CA2 and CA3 of hippocampus in treated groups with alcoholic extract (25, 75 mg\kg) was significantly increased in comparision with controls (P<0.01).Conclusion: This study determined that the alcoholic extract of Cannabis sativa can induce hippocampus neurogenesis which is not dose depended.

Background and Objective: Morphological alterations of hippocampus and dentate gyrus due to opium were reported in humans and animals. Also other evidences have shown that astrocytes actively participate in synaptic plasticity. This study was done to determine the conditioning place preference (CPP) on astrocytes number of Rat dentate gyrus by immunohistochemical technique.Materials and Methods: In this experimental study, 48 male Wistar Rat weighted average 220-250 g were used. For behavioural tests, Rats divided into eight experimental groups. The Rats were received morphine at different doses (2.5, 5, 7.5 mg/kg) for three days by subcutaneous injection and sham groups, received saline dose (1 mg/kg) and then CPP test in them were investigated.48 hours after behavioural testing animals were decapitated under chloroform anesthesia and their brains fixed and after tissue processing, slices stained with immunohistochemistery techniques. For morphometric study PTAH staining of astrocytes was used.Results: The most dose responses of morphine was observed in 7.5 mg/kg. The number of astrocytes in the controls (20.627±6.129) was similar to control-saline group (17.339±4.71). This difference was not significant, while the difference in the number of astrocytes in control group with morphine-treated experimental groups was significant (P<0.05).Conclusion: We concluded that the phenomenon of conditioned place preference induced by morphine can cause a significant increase in the number of astrocytes of sham and experimental groups compared to controls.

Background and Objective: Anterior Cruciate Ligament (ACL) tear is One of the most common injuries at knee joint. Threshold of motion sense included inputs that are received by mechanical receptors at dynamic position. The objection of present study was to find the effect of functional brace on the Kinesthesia motion sense in patients with ACL rupture.Materials and Methods: In this Quasi- experimental study, 20 patients with ACL tear, with aging range between 18 to 44 years old were recruited. Patients were selected in a simple non probability sampling manner. Using Continuous passive motion for testing the Kinesthesia motion sense, as a dependent variable. Data was analyzed with Paired t-test and Colmogrof-Smirnof tests.Results: Threshold of motion sense at affected knee before and after bracing was 3.93±1.67, 4.45±1.86 in open eyes and 3.82±1.61, 4.13±1.96 in closed eyes (P<0.05).Conclusion: This study showed that the functional brace did not play in important role in the improvement of threshold of motion sense in patients with ACL tear.

Background and Objective: Lipoprotein (a) [Lp (a)] is a new cardiovascular risk factor and its concentration increase cardiovascular diseases, while physical activity decrease cardiovascular diseases. This study intend to investigate the effect of eight week walking program on lipoprotein (a) concentration in non-athlete iranian menopausal women.Materials and Methods: Twenty two healthy menopause women of 47-55 year of age any specific disorder were enrolled in this study. The subjects randomly divided into experimental and control groups. Anthropometric characteristics including height, weight, body mass index (BMI), body fat percent and Waist-to-Hip ratio (WHR) and serum lipoprotein on fasting were measured pre and post-walking program. The data were compared using independent t-test, U mann witny and pearson correlation caefficeint was used for assessement of relation between lipoprotein (a) with anthropometric indexes.Results: According to these results, there was a significant reduction of serum lipoprotein (a) (pre test 12.5±4/1; post test 10.5±3md), WHR, BMI and body fat percent prior and after the training in experimental group (P<0.05) while non significant changes was observed in control group. Also, there was non significant relationship between lipoprotein (a) with Anthropometric indexes.Conclusion: This study revealed that 8-week walking program had useful effects on menopausal women’ serum lipoprotein (a) concentration, WHR, BMI and body fat percent.

Background and Objective: Striae gravidarum is one of the cutaneous physiological changes during pregnancy with a high prevalence. This study was done to evaluate the effect of olive oil on prevention of striae gravidarum.Materials and Methods: In a randomized controlled clinical trial, 100 nulliparous women referring to Tehran health ceatens were gone under investigation during 2009. Those whome had the inclusion criteria were divided to experimental group (using olive oil) and control group. The questionnaire was completed via interview and observation. Data were analyzed using descriptive statistics and Chi-Square test.Results: Moderate striae gravidarum was seen 32% and 22% in intervention and conrtol groups, respectively. Severe striae gravidarum was 6% and 14% in intervention and control groups, respectively, but this diference was not significant.Conclusion: This study showed that olive oil did not demonstrate to have any role in reducing of stria gravidarum.

Background and Objective: Poor sleep quality is common among hemodialysis patients and can potentially predict morbidity, mortality and quality of life in these patients. On the other hand, hemodialysis patients are encountered with vitamin C deficiency. The purpose of this study was to determine the effect of intravenous vitamin C on sleep quality in hemodialysis patients.Materials and Methods: In this double blind randomized clinical trial, 60 qualified hemodialysis patients were gone under investigation in Sari a city located in North of Iran during 2010. Patients randomly allocated in two equal intervention and control groups. The main measured outcome was the Pittsburg sleep quality index (PSQI) which consists of seven components. At the end of each hemodialysis session, Intervention group received vitamin C vial (500mg/5cc) intravenously, three times a week for 8 weeks and control group received normal saline in a same way. Data were collected at pretreatment and after two months of treatment. Data were analyzed by Independent t test, Paired t test, Wilcoxon and Chi-Square tests.Results: The result indicated that the sleep quality improves significantly in vitamin C group but not in control group (P<0.001). Vitamin C caused significant improvement in subjective sleep quality, sleep latency, habitual sleep efficiency and sleep disturbances in intervention group (p<0.05). Also, Global PSQI score of intervention group had a greater improvement than control group. Moreover vitamin C caused significant improvement in subjective sleep quality, sleep latency, habitual sleep efficiency and sleep disturbances in intervention group after treatment (p<0.05).Conclusion: This study showed that intravenous vitamin C can effectively improve sleep quality in hemodialysis patients.

Background and Objective: The safety of teenagers and young are the major factor in developing a community and they are also the major group at risk of behavioural problems. So, this study was performed to evaluate the prevalence of risky behaviours among different university students in Babol, located in Norther of Iran.Materials and Methods: This cross sectional study was carried out in a random sample of 882 Babol university students including medical university, university of engineering and Azad University with roughly equal sampling ratio with respect to university and gender. The data was gathered by a designed questionnaire including demographic characteristics, physical involvement with others (violence), cigarette smoking, drug abuse, physical inactivity, overweight and obesity. In statistical analysis the Chi square test was used to determine the association of risky behaviours with demographic characteristics.Results: The results revealed that in general the prevalence of physical involvement with others (violence) during a recent year was 33.3% current cigarette smoking 13.7%, overweight and obesity 25.6%, physical inactivity 15.3% and drug user during recent year 0.3%. In general, the prevalence of some risky behaviour was more in boys than girls (P<0.001), and it was more in single than married (P<0.001) and in residence of dormitory and rented houses than personal houses (P<0.001) and also in engineering and Azad university in contrast to medical university (P<0.001). For example, the prevalence of cigarette smoking was 25.7% in boys and 3.6% in girls (P<0.001).Conclusion: This study showed a rather high frequency of risky behaviours among students in Babol city in North of Iran.

Background and Objective: Several strains of the Echinococcus granulosus have been described based on morphological characters, intermediate host specificity and/or genetic analysis of mitochondrial and nuclear DNA. The aim of this study was to characterize different E.granulosus isolates by using sequences of mitochondrial atp6 gene.Materials and Methods: In this study, Sixty infected liver and lungs of cattle, sheep and goats were collected from the abattoir of Varamin city-Iran during 2008. Protoscoleces were removed from each fertile cyst and DNA extracted. New and specific primers were designed for two existing genotypes (G1 and G6) of E. granulosus known to occur in Iran and applied in PCR reactions.Results: The new primers selectively amplified the G1 and G6 genotypes of E. granulosus with specific bands of 708 and 705 bp respectively. The G1 genotype was identified in all fertile cyst samples.Conclusion: This study showed that the new primer pairs which specifically amplify portions of the mitochondrial atp6 gene of the G1 and G6 strains of Echinococcus granulosus are proper molecular marker for investigating genetic variation in a number of isolates of E. granulosus from a range of hosts (sheep, goats, cattle) in Iran. The result of sequenced samples showed that our sequences were the same as those reported previously for these strains.

Background and Objective: Hypertension is considered as a major public health problem in most countries due to its association with ischemic heart disease. The aim of this study was to determine people awareness of hypertension in Golestan province of Northern Iran.Materials and Methods: This cross sectional population based study carried out on 2497 subjects (15-65 years old) including 1500 men and 1247 women in Golestan province- Northern Iran during 2006. The subjects were chosen by proportional-cluster sampling based on sex and age groups. The subjects were interviewed, antropometric indexes and serum biochemical factors were evaluated. Blood pressure was measured three times with 5 minutes interval and defined based on JNC-7 classification. Serum cholesterol and fast blood sugar (FBS) were determined using laboratory kits (enzymatic methods), and spectrophotometery technique. Data was analyzed by SPSS-16 software and Chi-Square test.Results: In general, the prevalence of hypertension in this region was 23.9%. with higher rate among women urban area by 3.3% and 5% respectively. Only 48.7% of hypertensive patients were aware of their disease and that was significantly more in women than men (P<0.001). Low physical activity, chronical age, diabetes, hypercholesterolemia, general obesity, central obesity and illiteracy were the risk factor for hypertension morbidity (P<0.05).Conclusion: This study showed, in spite of prevalency of hypertension among 20% of subjects in this area only 48.7% of them were aware about their disorder.

Background and Objective: Suicide is one of the important causes of death worldwide particularly among 44-15 years. The aim of this study was to survey the prevalency of attempted suicide in Golestan province, North of Iran during 2003-07.Materials and Methods: This descriptive study conducted on 4977 suicide attempted subjects in Golestan province, North of Iran during 2003-07. Data were gathered through a filed questioners. Data was analyzed by SPSS-18 and Chi-Square test.Results: Mean ± SD of the subjects was 22.91±7.59 years. The female to male ratio was 1.62. 55.6% of subjects were single. The subjects resided in urban and rural area were 62% and 37.8%, respectively.61.4% and 27.1% of subjects have finished and un-finished high-school studies.2% and 0.9% from those attempted sucide were died and referred to specific centers, respectively for further medical follow-up. There was a positive correlation between suicide single status and low educated subjects with P=0.036 and P=0.001 respectively.Conclusion: The findings indicated that the prevalancy of suicide were higher among single, female and those with lower education.

Background and Objective: Menstrual disorders are including of metruragy, oligomenorrhea, polymenorrhea, dysmenorrheal and amenorrhea. Hormonal disorders can be the cause of such abnormalities. This study was designed to evaluate, the correlation between serum thyroid and sex hormones level, with menstrual disorders.Materials and Methods: This descriptive - analytical study carried out on 110 women with menstrual disorders without anatomical disorders referred to private clinic during 2007-08. In third day of menstrual cycle, sample blood was taken for determination of LH, FSH, PRL, TSH, T3, T4 and Testosterone. Laboratory tests were performed by ELISA method.Results: The 42.7% of women with menstrual disorders were in age group lower than 25 years. Oligomenorrhea with 42.7% was the major menstrual disorder and amenorrhea was the lowest with 4.5%. The most hormonal disorders was related to T3 (46.3%), LH (44.5%) and testosterone was the lowest with 5.4%.11 cases (10.0%) have presented with hirsutism.Conclusion: According to findings of this study T3 and LH are the common hormonal disorders in menstrual abnormalities.

Background and Objective: The metabolic syndrome is a cluster of metabolic disorders that are associated with elevated risk of cardiovascular diseases and type-II diabetes. This study investigated the prevalence of metabolic syndrome among adolescents population in Gorgan, Northern Iran - 2009.Materials and Methods: A cross-sectional survey was conducted involving 450 adolescents 15-17 years, selected through 2 stage cluster randomized sampling from high schools. Anthropometric measurements, blood pressure, fasting blood glucose and lipid profile were assessed. Metabolic syndrome was defined according to NHANES III criteria. Data was analyzed by SPSS-16 software, Chi-Square and logestic regration.Results: The overall metabolic syndrome prevalence was 3.3% (CI 95%: 1.8–5.4). More than half of cases (54.6%) had at least 1 or 2 components. High triglyceride level was the most common disorder in both genders (boys 27.6%, girls 52.4%) and then low HDL cholesterol level (17.3%) and central obesity (7.6%) were common among boys and girls respectively. Where as abdominal obesity in boys (0.9%) and hypertension in girls (3.1%) were less common.Conclusion: This study showed that the rate of metabolic syndrome is slightly lower but the obsity in adolescents is higher than other parts of country.

Background and Objective: Over half of medical researches in Iran are done by students of different levels as their thesis. In medical school, thesis is a 6 hours mandatory course. This study caried out to determine the publication of thesis in faculty of medical in Gorgan, located in North of Iran.Materials and Methods: This descriptive study was performed on all thesis and all faculty members who have been advisor of at least one thesis up to the time of this study. To collect data, we used a questionnaire which contained questions about the research, their output and any obstacles to publication. All data have been analyzed by SPSS-13 software and Chi-Square test.Results: According to the collected information, 322 thesis were directed by 43 faculty academic members of Gorgan Medical School.87.6% and 12.4% thesis supervisors were clinical and basic science academic members respectively. The majority of 127 (39.4%) published papers have either been published by domestic medical journals or represented in medical seminars inside the country. Basic members have published 70% of their papers while only 35.1% of clinical faculty members have published their research findings. Experimental papers have been published more than other papers (48.5%). The most important publication barrier were lack of time and collaborator in this matter.Conclusion: This study showed that publication rate of medical student thesis is far from ideal.

Background and Objective: Child obesity is increased in developing countries. This study assessed the prevalence of obesity on children which are exclusively on breast feeding and its duration among children aged 24-59 months in Bandar Turkmen district Northern, Iran.Materials and Methods: In this descriptive- analytical study, 343 in children aged 24-59 months were selected with stratified random sampling. Obesity was defined as >+2SD NCHS (National Center for Health Surveys) reference. Data were collected by questionnaire, interview with mothers and were analyzed with Chi-Square and Fisher tests and multiple regression logistic models.Results: In this study, 6.4% of children were obese. Prevalence of obesity was not significantly different between boys and girls (5.4% and 7.4% respectively). Breast feeding duration <18 months (P<0.005) and formula or cow’s milk plus breast feeding up to 6 months old (P<0.01) was significantly correlated with children’s obesity. Breast feeding duration more than 18 months reduced the obesity risk factor with 64%.Conclusion: This study demonestrated that exclusively breast feeding in the first 6 months of life and breast feeding duration more than 18 months reduce the child obesity.

Background and Objective: Legg-Calve-Perthes disease is one of the most common disabling diseases of childhood and if not managed appropriately is truly disabling. Severity of disease and duration of disease onset are main determinants of choosing treatment strategy of either conservative management or surgical treatment. This study was designed to determine Legg-Calve-Perthes treatments and relation between type of treatment and duration of the disease.Materials and Methods: This descriptive study was carreid out on 50 patients with Legg-Calve-Perthes disease admitted in Ghaem Hospital in Mashhad, North East of Iran from 1995-2005.Results: According to age of patients and severity of disease, the subjects allocated to conservatine (11 patients) and surgical treatment (39 patients). Clinical improvment signs include pain reduction, range of joints motion, which were avaluate by physical examination and taking medical history of patients. In conservative group, only 4 patients assumed to be successfully treated with mean age of 7.25 years and the mean interval between disease onset and beginning of treatment was 2.25 months. Surgical group had mean age of 10.85 years and mean interval between onset of disease and initiation of treatment was 18 months. Conservative group showed less sever form of disease (lateral pillar group A and group B with age less than 8 years), but patients treated surgically were more severely involved (lateral pillar group B with age more than 8 years and group C).Conclusion: This study showed that age and severity of disease (lateral pillar classification) are main elements in treatment strategy (choosing conservative VS surgical treatment). The interval between onset of disease and onset of treatment strongly affects treatment success.

Background and Objective: Cardiovascular diseases are among 46% of deaths in Iran. Changing lifestyle is very important for the disease control. If the patients perceive the benefits of preventive behaviours, the barriers to those behaviours will decline and the probability of engaging in the behaviours will increase. This study carried out to determine perceived benefits and barriers of preventive behaviours of relapsed myocardial infraction.Materials and Methods: This cross-sectional study was carried out on 100 patients with a history of myocardial infraction referred to Yazd Cardiovascular Research Center during 2007. A questionnaire was used for data collection which measured perceived benefits of, barriers to preventive behaviours of myocardial infraction relapse and status of those behaviours. Data was analyzed using SPSS-13 and Pearson coefficient and regression tests.Results: Subjects earned a mean score of 30.24 (out of 36) in perceived benefits and 22.07 (out of 68) in perceived barriers and 24.48 (out of 37) in preventive behaviours. Preventive behaviours was positively correlated with net benefit and negatively with perceived barriers.Conclusion: This study showed that in spit of suitable level of perceived benefits of myocardial infraction, but still the perceived barriers are significant enough and therefor removal of barriers to such behaviour are essential.

Celiac disease is one of the most common cause of malabsorbtion syndrom. The symptom of this disease associated secondary to malabsorbtive problems. Celiac can be accompanied with liver enzyme dysfunction with various extra intestinal findings. This case was a 27-year old man presented with abnormal liver function test over period of 1 year. He did not have another symptom such as diarrhea, weight loss or skin lesion. In medical examination, there was no ascites, peripheral edema or jaundice. Diagnostic re-examination of the paitent include serology tests and Viral hepatitis, Wilson disease and auto Imuune respones showed to be normal.Abdominal and biliary sonography had normal results. Liver biopsy revealed no sign of any pathology, but duodenal biopsy and serologic findings were compatible by Celiac disease. The symptom improved on a gluten-free diet and his liver enzyme function tests became normal subsequently.