Journal of Arak University of Medical Sciences

Morphine and Naloxone Effects on Seizure in Brain Slice of Morphine-Dependent Infant Mice

Ehsan Sabori

Abstract

Background: The aim of this study was to evaluate the effects of different concentrations of morphine and naloxone on epileptic activity in live brain slices taken from morphine-dependent and control infant mice.

Materials and Methods: Forty neonatal mice were randomly selected. To establish dependency, 2, 4, 8, 16 and 32 mg / kg morphine was injected subcutaneously once daily (0.1 cc) for 5 consecutive days from day 14-18 after birth. On postnatal days 19-20, brain slices were prepared and cerebrospinal fluid was perfused with low magnesium to induce experimental- epiletform activity. The effects of 10, 100 and 1000 µM concentrations of morphine and 10 µM naloxone were investigated on epileptic activity. Chenges in the number as well as onset and amplitude of activities were considered as an indicator to determine the quantity of their effect.

Results: The results showed that morphine 100 µM increased the activity while 10 and 1000 µM concentrations of morphine and 10 µM naloxone attenuated epileptic activity in both groups. Naloxone reduced pro-seizure effect of morphine, but anti-seizure effect of morphine couldn't restored by naloxone.

Conclusion: Morphine has a two-phase concentration-dependent effect on epileptic activity in the infant mice; so that low and high concentrations of morphine inhibit epileptic activity, but its moderate concentration potentiates the epileptic activity. Naloxone has an anti-seizure effect.

Metabolic Response to Soy Supplementation in Women with Polycystic Ovary Syndrome

Mehri Jamilian

Abstract

Background: We are aware of no study examining the effects of Soy supplementation on patients with polycystic ovary syndrome (PCOS).This study was conducted to evaluate the effects of Soy supplementation on metabolic profiles in women with PCOS.

Materials and Methods: This randomized, double-blind, placebo-controlled clinical trial was conducted among 70 women diagnosed with PCOS. Participants were randomly divided into two groups to receive 50 mg Soy isoflavone supplements (n=35) or placebo (n=35) for 12 weeks. Fasting blood samples were taken at baseline and after a 12-week intervention to quantify related factors.

Results: Intervention group, subjects who received Soy supplements had significantly decreased total serum testosterone levels (-0.2±0.4 vs. +0.1±0.3 ng/mL, p=0.01) compared with the placebo. In addition, a significant rise in plasma glutathione (+96.0±102.2 vs. +22.7±157.8 µmol/L, p=0.04) and a significant decrease in malondialdhyde levels (-0.7±0.8 vs. +0.8±2.3, p=0.001) was observed following the consumption of Soy supplements compared with the placebo.

Conclusion: According to this study, Soy supplementation among PCOS women had beneficial effects on metabolic profiles.

The effect of three-week intensive interval training on Lipocalin-2 and Interleukin1-β in healthy and adult rat Hippocampus

Bahman Hasanvand

Abstract

Background: In response to the exercise, variety of inflammatory and anti-inflammatory changes in cytokines were occurred into the tissue spaces and also to the systemic circulation. The purpose of the current study was to determine the effect of three-week intensive interval training on Lipocalin-2 and Interleukin1-β in healthy and adult rat hippocampus.

Materials and Methods: Twenty Wistar rats were divided into training and control groups. Training group performed 15 (bouts) × 4 (min) exercise training for 60 min with 85 to 90% of VO_2max used for four sessions/week (for 3 weeks). Then, blood (for ELISA analyzing) and tissue sampling was performed from rat’s hippocampus and they were evaluated by using a Real-Time PCR method. Also, independent and paired t tests were used to define within and between group differences.

Results: Findings showed that gene translations of Lipocalin-2 and Interleukin1-β were significantly decreased in rat’s hippocampus (p=0.0001 and p=0.0001, respectively). Also, similar decreases were shown in serum levels of Lipocalin-2 and Interleukin1-β in rats (p=0.017 and p=0.003, respectively).

Conclusion: It seems that significant decrease of Lipocalin-2 subsequent of short-time intensive interval training is due to decreasing and significant changes in Interleukin1-β. Also, current training protocol on treadmill can significantly decrease levels of Lipocalin-2 and Interleukin1-β in rat serum and hippocampus.

Association Study of MiR-34b/c Genetic Variation and Ulcerative Colitis in Guilan Province

Zivar Salehi

Abstract

Background: Ulcerative colitis (UC) is a chronic disease that specifically affects the mucosa of the rectum and colon. The pathogenesis of UC is not well defined, but it is proposed that genetic and environmental factors result in an aberrant immune response to a subset of commensal enteric bacteria.The aim of this study was to investigate whether miR-34b/c rs4938723 T/C polymorphism is associated with UC risk.

Materials and Methods: Blood samples were collected from 50 patients diagnosed with UC and 100 healthy control subjects. Genomic DNA was extracted from peripheral blood. Genetic variation of miR34b/c was determined by tetra-primers ARMS-PCR (amplification refractory mutation system-polymerase chain reaction). All statistical analyses were conducted using the MedCalc version 12.1.

Results: There was a significant difference in genotype and allele distributions between cases and controls. It was observed that the CT heterozygotes had a 2.29-fold increase in risk of UC (OR=2.29, 95%CI=1.08-4.82, p=0.02).

Conclusion: It is suggested that the miR34b/c (rs4938723 T>C) polymorphism may be associated with the risk of UC. However, larger studies with more patients and controls are needed to confirm this result.

Effects of Aerobic Exercise and GNRH Agonists on Apelin Serum Levels and Insulin Resistance Index in Girls with Central Precocious Puberty

Ali Heidarianpour

Abstract

Background: The aim of this study was to investigate the effect of aerobic exercise and GnRH agonist on the levels of apelin and insulin resistance index in girls with central precocious puberty.

Materials and Methods: In this study, twenty-five girls (7.44±0.34 years) with precocious puberty were included. They were randomly divided into three groups (drug, n=10, exercise+drug, n=8, and exercise, n=7) and one control group (healthy, n=10). In the experimental group, aerobic exercise for 12 weeks, 3 days/week was done, duration intensity of exercise gradually increased 5 minutes and 5% respectively every 2 week. Also, the GnRH agonists were used as medicine. BMI, the apelin and insulin resistance index were assessed before and after exercise.

Results: Insulin resistance index and apelin serum levels in experimental group (exercise and exercise+ drug) were significantly decreased(p=0.05), while these factors were unchanged in control group (p=0.05). Additionally, BMI in exercie groups was significantly decreased (p=0.000), while it was increased in experimental group (drug group) (p=0.06).

Conclusion: Considering to current data, it could demonstrate that aerobic training and GNRH agonists at the same time can lead to a decrease in BMI and apelin and an improvement in insulin resistance index.

The Effect of Education on Preventive Behaviors of Failure to Thrive in Mothers with Children Aged One to Five Years: Applied Health Belief Model

Mahboobeh Khorsandi

Abstract

Background: One of the common and important health problems is failure to thrive in childhood. The purpose of this study was to determine the effect of education on preventive behaviors of failure to thrive in mothers with children based on health belief model.

Materials and Methods: This study is an interventional one in which 100 mothers with children one to five years involved (samples divided into two case and control groups, each of 50) sampling was done by a simple random method. For collecting information, a researcher-made questionnaire based on the health belief model and performance check list were used. Then, case group was trained for one month. 3 months after training, data were gathered and analyzed by Spss20 software. In addition to descriptive statistics, tests such as Chi-square, paired t-test and independent T-test were used.

Results: The mean age of case and control was 29.98±5.51 and 25.35±5.30 years old, respectively. The average age of children was 23.31 ± 13.14 and 27.55 ± 14.01months, respectively. Before the intervention, no significant difference was seen between groups. The average score in case group before intervention was as: knowledge(31.87±14.24), perceived susceptibility(64.23±5.86), perceived severity(64.41±9.34), perceived benefits(61.75±6.79), perceived barriers(67.91±8.14), self-efficacy(68.00±7.87), cues to action(44.53±6.82) and action(70.00±9.77). However, after the intervention, significant differences between groups in all variables were obserred.

Conclusion: According to the results, education based on health belief model is recommended for promoting preventive behaviors of failure to thrive.

Effect of Supplementing Mouse Maternal Diet during Pregnant and Weaning Period by Fish Oil and Vitamin E on Male Offspring Reproductive Organs

Abdolhosein Shahverdi

Abstract

Background: The aim of this study was to investigate the effect of fed fish oil (FO) with or without vitamin E for mothers on the testis cells of male offsprings.

Materials and Methods: Sixty mature female NMRI mice were divided into different groups: control (CTR; Standard diet(vitamin E 50 mg IU/kg) pre and postnatal period); I) Gavages 0.01 ml/day/mother fish oil (FO)+CTR diet during prenatal period; II) Gavages FO+CTR diet during postnatal period; III) consumed VITE(125 mg IU/kg) 2.5 folded greater than standard recommendations(2×)during prenatal period; IV)consumed VITE(2×)diet during pre and postnatal period; V)consumed VITE(2×)diet during postnatal period; VI) Gavages FO+VITE(2×) diet during prenatal period; VII) Gavage FO+VITE(2×)diet during postnatal period ;VIII) Gavages FO+VITE (2×)diet during pre and postnatal period. After weaning, the testes were collected and histological data were analyzed using SAS software by Duncan test.

Results: testes cells length, width and weight was lower in offspring which their mothers fed FO+CTR diet during prenatal, (p<0.05).Vitamin E consumption during postnatal period improved these parameters (p<0.05). Spermatogoni (47 vs. 43), spermatocyte (43 vs. 34), Spermatid (63 vs. 44), Sertoli (0.9 vs. 2), and Leydig (3 vs. 1.7) were increased as FO+VITE was used than CTR (p<0.05).

Conclusion: The positive effects of supplementation maternal diet by FO with VITE or sole VITE was observed. Thus, antioxidants should be consumed along with omega-3 fatty acids in maternal diet.

Psychometric Indices of Post Bariatric Surgery Self-Management Behaviors Questionnaire

Sadrollah Khosravi

Abstract

Background: Bariatric surgery is the most effective intervention for treating severe obesity and patient's adherence to self-management behaviors is essential to reduce complications after surgery. The purpose of this study was to investigate the psychometric properties of BSSQ in Iranian population.

Materials and Methods: The statistical society was all of the obese patients that underwent laparoscopic obesity surgery in Shiraz Ghadir Mother & Child Hospital from December 2016 till June 2016, and 201 of them (149 females and 52 males) were selected by using available sampling method. They responded to demographic characteristics, post bariatric surgery self-management behaviors questionnaire and general and specific adherence scales. For validity, methods such as content validity, structural validity (factor analysis and correlation analysis), simultaneous validity were used. The reliability of the questionnaire was determined by using bisection and internal stability methods by Cronbach s alpha.

Results: According to the results of explatory factor analysis, sisx factors including eating behaviors, physical activity, fruits, vegitables, grain and protein intake, fluid intake and dumping syndrome management were elicited, that these 6 factors explained 61.54% of variance of self-management behaviors. Total score of correlation matrix BSSQ with GAS & SAS were 0.363 and 0.702. For reliability, the Cronbach's alpha coefficient of this instrument was found 0.90 and guttman split-half coefficient was 0.78.

Conclusion: Results show that BSSQ has an acceptable validity and reliability and it can be used for assessing the post bariatric surgery self-management behaviors in Iranian population.

Cytotoxicity Assessment of Copper Nanoparticles (40nm) on the Human Umbilical Vein Endothelial Cells Viability

Bagher Seyed Alipour

Abstract

Background: Copper nanoparticles (Cu NPs) induced angiogenesis, has been adapted to respond the most important challenging in wound healing. But due to the toxicity of nanoparticles, the nontoxic concentrations is important. The aim of this study was to determine the concentration and size of copper nanoparticles for investigating the effect of its cytotoxicity on the endothelial cell.

Materials and Methods: In this study, we exposed Cu NPs (40nm) with concentrations of 1, 10, 100 μM and 1 ,10 mM to endothelial cells and evaluate its viability effect after 24, 48 and 72 hours, according to the MTS) Methy Thiazol Tetrazolium (assay. Its optical density was determined using an ELISA reader and then was recorded.

Results: The findings demonstrated that Cu NPs was significantly (p<0.05) cytotoxic in concentration higher than 100 μM and cell viability was significantly increased following 48 and 72 hours in all concentrations, so that, the most difference was seen in 100 µM concentration. The IC₅₀ values of Cu NPs at incubation time 24, 48 and 72 hours were 31.44, 36.67 and 29.38 μM.

Conclusion: The results showed that different concentration of Cu NPs in the 48 and 72 hours didn’t cause any cytotoxicity effect, but it stimulated endothelial cell proliferation. Therefore, Cu NPs with dose and time dependent effect has been increased endothelial cell proliferation.

Study the Effect of Exercise on Bone Markers, Glycemic and Anthropometric Indices in Postmenopausal Women with Diabetes

Bahloul Ghorbanian

Abstract

Background: Diabetes mellitus is a common disease in human societies that dealing with its complications imposes enormous cost to the health system. The previous studies have shown that bone biochemical markers can be used for evaluation of bone metabolism in response to physical activity. The purpose of this study was to examine the effect of increasing 10-week aerobic exercise (AE) on serum osteocalcin, PTH and glycemic and anthropometric indices in postmenopausal women with type II diabetes.

Materials and Methods: In this semi-experimental study, 40 postmenopausal women with type II diabetes (40-60 years) as available subjects were selected and randomly assigned into two exercise (20) and control (20) groups. Exercise protocol was AE and walking activity for 10 weeks (3d/wk, 45 to 60 min/d with 45% to 60% HRRmax intensity). Blood samples were taken before and after exercise to measure serum variables. Data were analyzed by T-test and statistical significance criterion was set as p<0.05.

Results: AE makes a significant increase in osteocalcin levels and a decrease in insulin resistance index, insulin and fasting blood glucose in the experimental group (p<0.05). Changes in other variables such as PTH, HbA1c and anthropometric indices were not significant (p>0.05).

Conclusion: Due to the favorable effects of AE on osteocalcin and glycemic indices, it seems that this training method can be recommended as a non-invasive treatment for maintaining bone density and controlling blood glucose in diabetic patients.