Showing 70 results for Rahim
Rahim Vakili, Mahmood Mahmoudi, Ali Ghasemi,
Volume 3, Issue 1 (16 2004)
Abstract
Diabetes mellitus is the commonest endocrine-metabolic disorder during the early years of life. As many as one in five of insulin-dependent diabetics may have thyroid antibodies in their sera, which is 2-20 times higher than the general population.
Methods: Tpo-ab, Tg-ab, TSH and HbAlC were measured in 48 children and adolescents with diabetes and compared with for sex/age-matched controls. Clinical data including sex, age at onset and duration of diabetes, family history and signs and symptoms of thyroid disorders were recorded. Statistical analysis was made using SPSS software.
Results: In diabetic group, twelve patients had positive thyroid autoantibodies Tg-ab was positive in ten and Tp-ab was positive in nine and both were positive in seven patients. The prevalence of thyroid antibodies in our study was 25% and in the control group, nobody had thyroid antibodies (P=0.006). Of the twelve patients with autoimmune thyroid disorders, three had hypothyroidism.
Conclusion: The prevalence of autoimmune thyroid disorders was not influenced by sex, age, duration of diabetes or HbAlc level. On the whole, nearly one-fourth of diabetic patients had thyroid antibodies, and annual thyroid antibodies investigation for these patients is suggested.
Hossein Fakhrzadeh, Abdolhamid Bagheri, Anahita Hamidi, Rasoul Pourebrahim, Ramin Heshmat, Masoumeh Noori, Yalda Rezaeikhah, Bagher Larijan ,
Volume 3, Issue 2 (16 2004)
Abstract
Background:Obesity is a serious public health problem in developing countries due to its association with the cardiovascular risk factors. Childhood obesity is responsible for a number of different complications both during childhood and adulthood. The aim of the present study was to determine the cardiovascular risk factors in overweight and obese Iranian children.
Methods: We screened 13086 children aged 7-12 years by measuring waist circumference. Those with a waist circumference ≥61 cm were selected for further evaluation. Anthropometric measurements were done and blood samples were taken from 563 enrolled overweight/obese children (284 boys and 279 girls). We determined cardiovascular risk factors (including fasting total cholesterol, LDL-C, HDL-C, triglycerides, blood pressure). In addition we measured the fasting blood sugar, insulin, apo-A , apo-B and leptin levels.
Results: Only 2.7% of overweight or obese children had no risk factors. While, 20.6% had one and 70.85% had two or more risk factors. The prevalence of high total Cholestrol levels was 42.6%. HDL-C showed an acceptable level in 92.4%of children .There were strong correlations between BMI and serum apoB and leptin levels (p<0.005).
Conclusion: The high prevalence of cardiovascular risk factors in overweight and obese Iranian children emphasizes the need for prevention and control of childhood obesity from early childhood in our country.
Hossein Fakhrzadeh, Rasoul Pourebrahim, Fatemeh Bandarian, Ramin Heshmat, Fouruzan Djalilpour, Masoumeh Noori, Ozra Tabatabaie, Farzaneh Zahedi, Iman Rahimi, Sara Ghotbi,
Volume 4, Issue 1 (17 2004)
Abstract
Background: Cardiovascular disease is one of the major leading cause of death in Iran. There is a strong association between parental history of cardiovascular disease clustering of risk factors in the offspring. Detection and treatment of cardiovascular risk factors since childhood is essential to reduce the incidence of disease in adulthood. This study was performed to identify major cardiovascular risk factors in middle school-aged children and their parents in high risk compared to control families.
Methods: The middle schools of the 6th of Tehran were divided randomly into two groups. A total of 169 high-risk children with their families were recruited from the first group while 105 control children with their families were recruited from the second group of schools. Coronary risk factor survey was performed in the participants.
Results: Prevalence of increased total- and LDL-cholesterol and high FBS were higher in high-risk parents and children. Prevalence of increased BMI was higher in fathers and children of high-risk families. More fathers in high-risk families were smoker. The means of waist circumference and WHR were significantly higher in high-risk fathers. The means of total- and LDL- cholesterol were significantly higher both in parents and children of high-risk group. The means of FBS were significantly higher in fathers and offspring of high-risk families.
Conclusion: Cardiovascular risk factors are more prevalent and clustered in high-risk families. Screening of these families is essential to prevent progression of cardiovascular disease since childhood and reduce its burden in adulthood.
Mohammad Ali Boroumand, Leila Sam, Seyed Hesameddin Abbasi, Mojtaba Salarifar, Ebrahim Kassaian, Saeedeh Forghani,
Volume 4, Issue 2 (17 2004)
Abstract
Background: This study was performed to evaluate the prevalence and risk factors of asymptomatic bacteriuria (ASB) in women with type 2 diabetes mellitus in Iranian population.
Methods: Between March 2003 and December 2003, 202 nonpregnant women with diabetes type 2 who were between 31 to 78 years old and had no abnormalities of the urinary tract system were included. We defined ASB as the presence of at least 105 colony-forming units/ml of 1 or 2 bacterial species, in two separated cultures of clean-voided midstream urine. All the participants were free from any symptoms of urinary tract infection (UTI). Risk factors for developing bacteriuria was assessed and compared in participants with and without bacteriuria.
Results: In this study, the prevalence of ASB was 10.9% among diabetic women. E.coli was the most prevalent microorganism responsible for positive urine culture. Most of the isolated microorganisms were resistant to Co-trimoxazole, Nalidixic acid and Ciprofloxacin. Pyuria (P<0.001) and glucosuria (P<0.05) had meaningful relation with bacteriuria but no association was evident between age (P<0.45), duration of diabetes (P<0.09), macroalbuminuria (P<0.10) and HbA1c level (P<0.75), and the presence of ASB.
Conclusion: The prevalence of ASB is more prevalent in women with type 2 diabetes, which pyuria and glucosuria can be considered as risk factors in this regard. Routine urine culture can be recommended for diabetic women even when there is not any urinary symptom.
Hossein Fakhrzadeh, Pantea Ebrahimpour, Rasoul Pourebrahim, Ramin Heshmat, Bagher Larijani,
Volume 4, Issue 2 (17 2004)
Abstract
Background: Homocysteine is regarded as a risk factor for metabolic syndrome and cardiovascular diseases. It is of great importance to determine exact risk factors of these disorders because of their high prevalence.
Methods: The 25-64 year old individuals in 17th district of Tehran were studied. It was designed according to the WHO MONICA (Multinational Monitoring of Trends and Determinants in Cardiovascular Disease) project using the ATP III criteria. Homocysteine levels higher than 15 µmol/l and Folate and vitamin B12 lower than 11 nmol/l and 185 pmol/l, respectively were considered as abnormal.
Results: Of the whole population, prevalence of abnormal homocysteine, Folic acid and vitamin B12 was 54.5%, 98.2% and 27%, respectively. Homocysteine levels were higher in men than women (P= 0.026). None of the differences between the means of these three risk factors were statistically significant in people with and without the metabolic syndrome. The only significant difference was higher homocysteine levels in women with metabolic syndrome (P= 0.010).
Conclusions: According to this study, hyperhomocysteinemia and Folate and vitamin B12 deficiency are more prevalent in our population. But there was no correlation between these factors and risk of metabolic syndrome. Because of the controversy about this issue and high prevalence of cardiovascular diseases in our country, further studies are suggested.
Anahita Hamidi, Abdolhamid Bagheri, Hossein Fakkhrzadeh, Ramin Heshmat, Alireza Moayyeri, Mohammad Jafar Mahmoudi, Rasoul Pourebrahim, Ozra Tabatabaee, Bagher Larijani,
Volume 4, Issue 2 (17 2004)
Abstract
Background: Leptin is an adipocyte- derived hormone that plays an important role in the pathogenesis of obesity. Obesity is associated with insulin resistance and hyperinsulinemia. Insulin resistance is one of the factors which have been suggested to affect leptin serum levels. There are few studies evaluating the relation between leptin level and insulin resistance in childhood and adolescence obesity. The aim of the present study is to investigate this relationship in Iranian obese children.
Methods: We screened 13089 primary school students aged 7-12 years. Children were divided to overweight and normal based on the recently published National Center for Health Statistics growth charts. The number of children which were overweight was 498, of whom 347 subjects particiated in the study. Fasting blood glucose, insulin and leptin levels were measured and homeostasis model assessment (HOMA) of insulin resistance (HOMA-IR) and fasting glucose to insulin ratio (FGIR) were calculated and compared between two groups.
Results: Serum leptin levels were significantly higher in overweight compared to normal group. (11.58±8.1 and 8.1±5.2 respectively p<0.05). Before adjustment for BMI, there was a significant correlation between leptin and fasting insulin, HOMA –IR index and FGIR. (r=0.1, p< 0.05, r=0.1 , p<0.01, r=0.07, p<0.05 respectively). After adjustment for BMI, no significant correlation was found (r=0.097, p=0.20).
Conclusion: The relation between leptin and insulin resistance was weak and disappeared after adjustment for BMI. It seems that many other factors including BMI and total fat amount may affect this relationship. Further studies in this field are required.
Hosein Fakhrzadeh, Pantea Ebrahimpour, Rasool Pourebrahim, Ramin Heshmat, Masoumeh Noori, Alireza Shafaee, Bagher Larijani,
Volume 4, Issue 4 (17 2005)
Abstract
Background: Homocysteine is one of the novel cardiovascular risk factors. We know most of the cardiovascular and diabetes risk factors are accompanied. The aim of this study was to determine the role of homocysteine in diabetes.
Methods: The study was performed in 25-64 year old individuals of the 17th district of Tehran according to WHO MONICA project. Homocysteine levels higher than 15 µmol/l was considered as abnormal. According to ADA 2004 criteria, fasting glucose levels of 100 to 125 mg/dl were considered as impaired glucose tolerance (IGT), while levels higher than 125 mg/dl included diabetes.
Results: Prevalence of hyperhomocysteinemia was 54.5% in the whole population. Prevalence of IGT and diabetes were 3.5% and 10.1%, respectively. There was no difference between prevalence of IGT and diabetes in both hyperhomocysteinemic and normal group (P= 0.365). The difference was also not significant in each genders, but mean glucose levels were significantly lower in people with hyperhomocysteinemia (P= 0.003).
Conclusion: This study emphasizes that an inverse relation between glucose and homocysteine levels. Some studies indicate an opposite result and there is controversy on it. More researches may determine the exact role of homocysteine in diabetes.
Faranak Kazerouni, Ebrahim Javadi,
Volume 5, Issue 1 (18 2005)
Abstract
Background: Type 2 diabetic patients have 2 or 4 fold risk of coronary heart diseases. According to researches, all types of dyslipidemia independently have atherogenic properties so it seems small dense LDL has the most effects in this case. To investigate whether glycemic control, which is assessed by concurrent HbAlc, has any favorable impact on LDL size we determined the relation between LDL size and HbAlc in diabetics.
Methods: In this study, LDL size was determined by non-denaturing polyacrylamide gel electrophoresis in 81 type 2 diabetics 50 to 70 aged. BMI was calculated in all participants as weight (Kg) divided by height (m2). TG and HDL-C were measured using enzymatic kits. HbAlc was determined using immunoturbidometric method.
Results: Based on results obtained LDL size in diabetics was significantly correlated with TG (r=-0.281, P<0.05), sex (r=-0.276, P<0.05), HbAlc (r=-0.232, P<0.05) and HDL-C (r=0.215, P<0.01). In linear regression analysis TG (standardized =-0.192 p<0.054), HDL-C (standardized =0.214 p<0.05) and female sex (standardized =0.196 p<0.056) were the independent determinants of LDL size (although they showed borderline significance). HbAlc showed high co linearity with HDL-C and was excluded from the model.
Conclusion: HbAlc is inversely correlated with LDL size in diabetics. However it is not an independent predictor of LDL size. It is likely that decrease in HDL-C levels due to poor glycemic control results in decrease in LDL size.
Hossein Fakhrzadeh, Maryam Ghodsi, Anahita Hamidi, Alireza Moayyeri, Ramin Heshmat, Rasool Poorebrahim, Masoumeh Noori, Bagher Larijani,
Volume 5, Issue 1 (18 2005)
Abstract
Background: It is well recognized that an increased body weight is often associated with increased blood pressure. Moreover, leptin an adipocyte-derived hormone is strongly suggested to have an important role in pathogenesis of the obesity. We aimed to evaluate the levels of serum leptin in association with obesity and hypertension in a sample of Iranian obese children.
Methods: Children from all the primary schools of a distinct of Tehran were screened for obesity. Children with a waist circumference equal to or above 90th percentile for their age and height were invited for the study. Anthropometric measurements were done and blood samples for fasting serum leptin levels were collected from 563 enrolled obese children. Multivariate linear regression analysis was used to evaluate relationship of various factors with obesity.
Results: Mean Serum leptin levels were 8.65 ±2.18 (ng/ml). Serum Leptin levels were higher in girls than boys (P=0.009). There were significant correlations between body mass index (BMI) and serum Leptin levels, child age, systolic and diastolic blood pressure. Systolic blood pressure and diastolic blood pressure lost their association with serum Leptin level in multivariate linear regression analysis.
Conclusion: BMI is independently associated with Leptin levels among obese children. This may affirm a role for this hormone in the pathogenesis of childhood obesity. It seems unlikely that plasma Leptin be a major mediator of association between obesity and hypertension. However, severe hyperleptinemia may act as a risk factor for increased blood pressure.
Hosein Fakhrzadeh, Sara Ghotbi, Ramin Heshmat, Rasoul Pour-Ebrahim, Masoumeh Nouri, Alireza Shafaee, Bagher Larijani,
Volume 5, Issue 2 (18 2005)
Abstract
Background: Elevated total plasma Homocysteine, is an independent risk factor for cardiovascular disease. Folate and vitamin B12 have not only a protective effect on cardiovascular disease but also an essential effect on total Homocysteine concentrations (tHcy). This survey has been conducted to evaluate the determinants of tHcy in 1191 healthy Iranian adults.
Methods: This study which was a part of the Cardiovascular Risk Factors Survey in the Population Lab Region, has been designed and conducted based on MONICA/WHO project. A total of 1191 people have been recruited and assessed on serum Homocysteine, Folic acid and vitamin B12, triglycerides, cholesterol, HDL-C, LDL-C, FBS, BMI, BP and smoking, with interview, questionnaires, examination and blood sampling. Blood samples were analyzed according to standard methods.
Results: The variables were assessed in 1191 participants include 416 men (34.9%) and 775 women (65.1%). Prevalence of hyperhomocysteinemia was correlated significantly with male sex and aging. Hcy levels were inversely related to serum Folate and vitamin B12 concentrations. After further adjustments, we detected a positive correlation between tHcy and age, male sex, smoking and BMI, and a negative one with LDL-C and diabetes. Although there was a correlation between tHcy and blood pressure, after age, sex, BMI and smoking adjustment, it just remained significant in women and with systolic blood pressure.
Conclusion: We found that dietary and lifestyle parameters such as Folate intake and smoking habit are the main determinants of distribution of plasma Homocysteine in an apparently healthy population. We assumed that lifestyle changes could have considerable subsequences in public health. Our findings confirm the potential advantages of dietary improvements and increased intake of nutrients along with smoking cessation in order to prevent cardiovascular diseases in high-risk patients.
Mahmood Khayatian, Bijan Farzami, Ebrahim Mirzajani, Bagher Larijani, Mohammad Taghikhani, S. Zahra Bathaei, Safoora Vardasbi, Esmael Elmi-Akhouni,
Volume 5, Issue 2 (18 2005)
Abstract
Background: Glucokinase serves as a glucose sensor in pancreatic β-cells and plays a key role in glucose homeostasis and glucose-stimulated insulin secretion (GSIS). In the present study we examined the effect of glucosamine, a glucokinase inhibitor, on the pancreatic glucokinase and hexokinase activities and on insulin secretion from freshly rat pancreatic islets of Langerhans. Insulin concentration was measured by rat insulin ELISA kit.
Methods: The pancreatic islets from normal and type 2 diabetic (nSTZ) rats were isolated by collagenase digestion method. Glucose phosphorylation was quantitated by measuring the rate of glucose-6-phosphate formation in the fluorometric assay. Insulin secretion from hand-picked islets was evaluated in static incubation system. Insulin concentration was measured by rat insulin ELISA kit.
Results: Our findings demonstrate that glucosamine in a dose dependent manner, reduced glucokinase activity in islet extract, but had no effect on hexokinase activity. The glucose-stimulated insulin secretion, was inhibited by glucosamine but it had no effect on the basal insulin secretion. In diabetic rats glucokinase was decreased while the basal insulin secretion and the activity of hexokinase were higher than normals.
Conclusion: Based on results obtained from the present study, the assumption could be made that the decrease in the activity of glucokinase of pancreatic islets could be related to the impaired glucose stimulated insulin secretion. The increase in basal insulin secretion of diabetic rats may be due to an increase in pancreatic hexokinase activity.
Hossein Fakhrzadeh, Azadeh Sadat Khezri, Ali Refaei, Rasoul Pourebrahim, Mohammad Jafar Mahmoudi, Ramin Heshmat, Fatemeh Bandarian,
Volume 6, Issue 1 (19 2006)
Abstract
Background: Cardiovascular Diseases are becoming increasingly prevalent due to urbanization and industrialization of our country. Therefore Screening of the Cardiovascular Risk Factors is one of the most important health system priorities. The aim of this study was to evaluate a screening method implementing family history for cardiovascular risk factors.
Methods: We chose 10 Junior-high schools in the 6th district of Tehran using simple random sampling. Then a questionnaire asking about family history of cardiovascular disease in the first degree relatives (including grand parents) was distributed between them and was completed –
with contribution of parents. Then high-risk and low-risk families were invited separately to Dr Shariati Hospital for further evaluation. SPSS software version 10 using student T-test, Chi-Square and descriptive tests were applied for data analysis
Results: Approximately 40% of families had positive family history (high risk). From this group, 72% participated for follow-up. From the low-risk group, only 34% participated. Total cholesterol and LDL-C levels were significantly higher in high risk (HR) group. FBS was also significantly higher in fathers and children of the HR group (P<0.05). High TC, LDL-C and FBS levels were more prevalent among the HR families (P<0.05). No significant differences were observed in age, BMI, BP, TG and HDL-C between the 2 groups.
Conclusion: Families with a history of cardiovascular disease participated in greater numbers in the screening process and the prevalence of risk factors in this group was significantly higher. The findings confirm the usability of family history in screening programs.
Ladan Giahi, Abolghasem Jazayeri, Abbas Rahimi, Mazaher Rahmani, Bagher Larijani,
Volume 6, Issue 2 (18 2006)
Abstract
Background: Plasma concentration of adiponectin was found to play an important role in regulation of glucose metabolism, insulin resistance and conditions commonly associated with obesity. The aim of this study was to assess adiponectin level and its relation with percent of body fat mass and insulin sensitivity in over-weight men.
Method: This study was conducted on two groups of type 2 diabetic (n=20) and non-diabetic (n=20) overweight adult men. Serum level of adiponectin (ELIZA), FBS (GOD-PAP), fasting insulin (immunoreactive assay) and body fat mass (Bio-electric impedance) were measured. Insulin sensitivity was calculated using QUICKI.
Results: Diabetics had significantly higher mean of fat mass% than non-diabetics (26.55± 2.87% vs. 22.93±2.64 p< 0.05), despite fairly similar BMIs (27.7 kg/m2). Adiponectin concentration was lower in diabetics (7.77 ±3.53µg/ml) than non-diabetics (8.13 ± 0.03µg/ml) however, this difference was not statistically significant. The negative correlation between adiponcetin and fat mass didn't reach statistical significance. Adiponectin positively related with insulin sensitivity in non-diabetics (r= +0.5 p= 0.04).
Conclusion: Lower level of adiponcetin in diabetics than their non-diabetic counterparts. As well as the positive association of adiponectin with insulin sensitivity confirm the suggested role of decreased level of adiponectin in conditions such as insulin resistance and diabetes.
Mahtab Alizadeh, Azam Rahimi, Masome Arshinji, Farshad Sharifi, Seyed Masoud Arzaghi, Hossein Fakhrzadeh,
Volume 13, Issue 1 (1-2014)
Abstract
Objective: The present study describes assessing physical health status of old people in different age
groups in Tehran metropolitan area. The outcomes of this study could help to health policy makers to
develop of better health policy in gerontology field by determine of priorities of care in different age
groups of old people and effect of socio-economic components on elder’s’ physical health.
Method: This was a cross sectional study in 2010. The participants were (N=402) aged 60 years old and
over which have underrepresented from Shahid Beheshti university. The survey methods were via face-
to-face interviews, and just in a few cases as telephone interviews. The instrument to data collection
included demographic questionnaire, SF-36 short form and ADL tools. Data analyzed by Stata and SPSS
Ver.15 through t-test, one-way ANOVA. Regression models applied as well.
Findings: Based on the results 45% of elderly were in (60-69) years old, 36.5% were in (70-79) years
old, and 18.5% were 80+ years old. The median age was 71.5±8.9 years. Regarding ADL, 18.2% of
elderly were dependent 22.3% were semi dependent, and 59.5% of participants were independent to do
activity of daily living. Regarding physical functioning, 29.6% of elderly had severe limitation 32.6%
had moderate limitation, and 37.8% had no limitation in their physical function. Components of age, sex,
marital status, education, job, income, insurance, housing, and living with whom had significant
association with physical health status in old people. Although based on regression model and
considering in effect of conflict variables, age and sex had more effect to predict of activity of daily
living in old people. Age, sex, to be alone, and financial problems were the most predictors on physical
function in aged people.
Conclusion: The important components that effect on physical health of elderly related to fragile elderly
from aspect of socio economic factors. Based on the results of this study aged elderly and old women
were more disable to do Activity of Daily Living (ADL). Regarding physical function age, sex, living
with whom, and financial dependency were significant components in relation with physical function. In
other words, older people, women, elderly who did not live with their spouse, and elderly who were
dependent in financial aspect to others had more difficulty in physical function.
Maryam Chinisaz, Azadeh Ebrahim-Habibi, Parichehreh Yaghmaei, Kazem Parivar, Ahmad- Reza Dehpour,
Volume 13, Issue 4 (5-2014)
Abstract
Background: The flexible structure of proteins is one important factor in the formation of ordered aggregates (amyloid fibril). This is a major problem for therapeutic proteins such as insulin. Study on the induction and inhibition of insulin fibrillation process with specific compounds such as aromatic derivatives may provide useful information about means of stabilization of protein structures.
Methods: To induce fibrillation, regular insulin was incubated in phosphate buffer (pH=7.4) during 24 hours. Amyloid formation was investigated by using Congo red absorbance and transmission electron microscopy (TEM). Then nodular amyloidosis was observed in mice upon amyloid fibril injection, after which the excised nodule was studied by Congo red staining and polarized light microscopy. Then, some aromatic compounds effect was investigated on the fibrillation process.
Results: Regular insulin form mature amyloid fibrils at pH=7.4, 37°C after 24 hours. Silibinin had the highest inhibitory effect on that process. Furthermore, Amyloid fibril injection in mice caused nodular amyloidosis.
Conclusion: Regular insulin has a high potential to undergo amyloid aggregation. Nodular amyloidosis confirms fibril formation by insulin under in vitro condition. Silibinin could be considered as a potential compound capable to increase protein structure stability.
Parichehreh Yaghmaei, Faazaneh Abbasi, Azadeh Ebrahim-Habibi, Atieh Hesaraki,
Volume 13, Issue 5 (7-2014)
Abstract
Background : PCOS (Polycystic Ovary Syndrome = PCOS) is a relatively common disease in women of childbearing age. Bisphenol s are chemical groups that are composed of two functional hydroxyl group and most of them are based on methane. In this study, the effects of phenolic compounds, (bisphenol A and AP) in polycystic ovary syndrome were investigated.
Methods : mature Wister rats were classified in six groups . Healthy controls ( healthy rats that received Grape seed Oil as solvent ), PCOS Group ( disease induced by testosterone propionate ) experimental groups 1.2.3.4 , respectively. after induction of PCOS,they received bisphenol- A and AP in doses of25 mg / kg, 50mg/kg, by gavage . Blood samples were taken and the hormones LH, FSH was measured . Ovaries were also to be studied histologically .
Results : The results showed that the amount of LH to FSH ratio increases after induction with bisphenol-A and bisphenols AP,. Furthermore the number of follicles and growing follicles were reduced significantly, and these concequences causing negative effects on polycystic ovary syndrome.
Ghasem Sazegar, Vahid Ebrahimi, Mohammad Javad Saeedi Boroujeni, Shabnam Mohammadi, Ramin Salimnezhad,
Volume 14, Issue 1 (1-2015)
Abstract
Background: Given diabetes mellitus has an adverse effect on spermatogenesis and male fertility, the aim of the present study was to investigate the effect of L-carnitine administration on spermatogenesis and testicular structure in diabetic rats induced with Stereptozotocin.
Methods: In this experimental study, fifteen rats were randomly divided into 3 groups: control group was received citrate buffer. Case group was diabetic rats that received 40 mg/kg carnitine for 16 days. Third group was diabetic rats that did not receive carnitine. After sixteen days, morphometric study was performed. Besides, index of testicular weight was obtained. Then, data were analyzed using SPSS software and ANOVA.
Results: In testicular sections of diabetic rats were observed a disruption and deformity in first layer of somniferous tubules. Statistical analysis showed a significant difference in carnitine group when compared to the control group (P<0.05). There was a significant difference between weight of diabetic rat compared to the control group (P<0.001). Besides, there was the most ratio of testis index in control group.
Conclusion: Our finding showed that short-term L-carnitine administration was affective on the diameter and thickness of seminiferous tubules. Hence, L-carnitine treatment may cause an improvement in spermatogenesis of diabetic men.
Mahsa Soltani-Nobakht , Parichehreh Yaghmaei, Azadeh Ebrahim-Habibi,
Volume 14, Issue 3 (3-2015)
Abstract
Background: Alpha-amylase is the most important enzyme in the digestion of starch. Activators of this enzyme could be potentially used as digestive aids and its inhibitors block the absorption of starch compounds and result in the control of blood sugar levels. This study aimed at the investigation of aromatic compounds on bovine serum alpha-amylase. Methods: Effect of carvacrol, cumyl phenol, tryptamine, tryptophan, N-acetyl-L-tryptophan, Bis phenol A, 2-benzyloxy phenol, 2,6 diisopropyl phenol and 4-chloro-2-isopropyl-5-methyl phenol was investigated on bovine serum alpha-amylase with use of artificial substrate (laboratory kit). Results: Most of tested aromatic compounds showed a similar pattern. All these compounds had 5-30% inhibitory effect on the tested serum with the exception of tryptamine which showed a 20% increase in the enzyme activity. The best inhibitory effect was obtained from cumyl phenol in the range of 30%. Conclusion: This study showed that aromatic compounds with one and two cycles have moderate inhibitory effect on bovine serum alpha-amylase and tryptamine showed a slight activator effect. With regard to these results, indolic and phenolic structures may be effective on alpha-amylase, and in the next step, investigation of these compounds derivatives is suggested.
Habibeh Taghavi Kojidi, Farshad Farzadfar, Niloofar Peykari, Bagher Larijani, Shadi Rahimzadeh, Ehsan Rezaei-Darzi, Sahar Saeedi Moghaddam,
Volume 15, Issue 2 (1-2016)
Abstract
Background: Thyroid cancer is the most common form of endocrine cancer. The age and gender-adjusted incidence of thyroid cancer has increased faster than that of any other malignancy in recent years, with the increased incidence seen in both genders, all ethnic backgrounds and all sizes of thyroid cancer. It appears that the rise in thyroid cancer incidence is not only due to medical surveillance and improved disease detection. In Iran, also scattered studies had been accomplished in different provinces and requirement to more attention and planning for thyroid cancer. Thyroid cancer’s control and prevention requires to the evidence–based strategies in different population groups based on national and provincial comprehensive studies on the prevalence and incidence. Thus we aimed to provide the comprehensive information about thyroid cancer prevalence and trend in national, provincial levels among Iranian population.
Methods: In this study we used some steps respectively to show how thyroid cancer prevalence changes in 1990 to 2010 between different provinces. We aggregate cancer registry data set by province, age categorized, gender and merge with other national covariates that were gathered in Iran. Then, linear regression model and logistic regression model were used to modeling and predicting for other provinces and years.
Results: Mean of thyroid cancer prevalence displayed that prevalence increased with increase in years especially more rapidly from 2002-2010 the prevalence rates were estimated to be (0.0-0.25) and (4.2-13.7) per 100000 in 1990 and 2010 respectively and increased in both females and males. Female to male ratio was 2.5. Highest prevalence thyroid cancer were in four provinces of Iran, Isfahan (mean rate 4.3 per 100000), Yazd (mean rate 4.1 per 100000), Tehran (mean rate 4 per 100000) and Qazvin (mean rate 3.1 per 100000) respectively.
Conclusion: Iran map displayed with increase in years, thyroid cancer prevalence become larger. Additional research on the risk factors for thyroid cancer is needed to explain the difference of thyroid cancer prevalence between provinces.
Farid Bahrpeyma, Mehdi Ebrahimi, Razieh Javadian Kotenaei,
Volume 15, Issue 2 (1-2016)
Abstract
Background: One of the most common complications of Diabetic Polyneuropathy (DPN) is decreased balance and Postural Control disorder. Balance has an important role in static and dynamic activities as a base of activities of daily living. The objective of this study was the evaluation and comparison of dynamic and functional balance in patients with DPN and healthy subjects.
Methods: In this study, dynamic and functional balance of 11diabetic patients with DPN (detected by Michigan questionnaire) and 11 healthy subjects were evaluated by Biodex Balance System (BBS) and Tandem Stance (TS) test in open and closed eyes conditions. The participants were matched by age and BMI. An independent t-test was used to compare balance parameters between patient and normal group. Furthermore, the correlation between dynamic balance parameters of BBS and TS tests were calculated using the Pearson’s Correlation Coefficient.
Results: The results of BBS in patients with diabetic peripheral neuropathy were significantly higher than normal subjects (P<0.05). The mean of time of TS test in diabetic group was significantly lower than healthy subjects (P<0.05). Also there was a significant (P=0.004) negative (r = 0.794) correlation between Medio-Lateral stability index (recorded from BBS) and TS with open eye, in diabetes group.
Conclusion: Older adults with DPN have an impaired functional balance in comparison with matched control subjects and this may expose the patients to danger of falling during daily activities.
