[ effects of probiotic yoghurt consumption on blood pressure and serum lipids in type 2 diabetic patients: randomized clinical trial]

Considering the high prevalence of hypertension and dyslipidemia in type 2 diabetic patients, the aim of the present study was to investigate the effects of probiotic yoghurt on blood pressure and serum lipid concentrations in these patients. In this controlled, double-blind, randomized clinical trial, 60 patients [23 males and 37 females] with type 2 diabetes and an LDL-cholesterol level higher than 100 mg/dL were assigned to one of two groups. Subjects in the intervention group consumed daily 300 gr of probiotic yoghurt containing Lactobacillus acidophilus and Bifidobacterium lactis, and those in the control group consumed daily 300 gr of conventional yoghurt, for 6 weeks. Dietary intakes, anthropometric measurements, blood pressure and serum lipids concentrations were measured at the baseline and at the end of the study. Statistical analyses were performed using the SPSS software, the statistical tests being analysis of covariance and paired-samples t-test. Systolic and diastolic blood pressure remained unchanged in both groups, while the total cholesterol and LDL-cholesterol concentrations decreased by 4.54% and 7.45% in the intervention group, respectively, as compared with the control values [P = 0.008 andP = 0.004, respectively]. However, no significant differences were observed between the initial and final triglyceride and HDL-cholesterol concentrations in the intervention group. Consumption of probiotic yoghurt can decrease the total cholesterol and LDL-cholesterol in type 2 diabetic patients; however, it has no effect on blood pressure. This study shows that probiotic yoghurt may help reduce cardiovascular disease risk factors in type 2 diabetes

Thyroid autoimmunity in patients with breast cancer

There is a lack of national/regional data on the relationship between breast cancer and thyroid diseases and the limited data available are controversial. This study was designed and conducted to investigate thyroid autoimmunity in women with newly diagnosed breast cancer. In a case-control study, 40 women with confirmed diagnoses of breast cancer and 40 age-matched healthy counterparts were recruited during a 12-month period from outpatient clinics of the Tabriz University of Medical Sciences. The case group were enrolled for the study before receiving treatment. Thyroid and physical examination was carried out in all participants and serum levels of TSH, FT4, ATPO and ATG were determined. The results were compared between two groups, and different histopathological subgroups of breast cancer. The mean age was 49.4817.75 and 46.80 +/- 7.00 years in the case and control groups respectively. Thyroid and physical examination were normal in all participants. TSH, ATPO and ATG serum levels were comparable between the two groups; however, the median level of serum FT4 was significantly higher in the case group [1.20 microg/dl vs. 1.03 microg/dl; p<0.001]. Increased levels of serum TSH and FT4 were found in 7.5% of the cases, while there were decreased levels in 2.5% of the cases, with no significant differences between the two groups. Thyroid tests were comparable between the different histopathological subtypes of breast cancer. No relationship was found between thyroid autoimmunity and breast cancer, a finding in concordance with some reports and in contrast with others. It seems that further studies with larger sample sizes are needed for conclusive findings

[Effects of total extract of urtica dioica on insulin and c-peptide secretion from rat [RIN5F] pancreatic beta cells and glucose utilization by human muscle cells]

The hypoglycemic effects of the Uritca Dioica [UD] extract, used for treatment of diabetes mellitus for many centuries, have been documented in several studies. The present study was designed to determine the possible mechanisms of hypoglycemic effects of UD on human muscle cells and RIN5F rat pancreatic beta cells. In the cell culture laboratory of the Drug Applied Research Center, pancreatic Beta cells and human muscle cells were prepared in multiple flasks containing culture media. Alcoholic extract of UD at concentrations of 50, 100 and 200 micro g/mL were added to muscle cell flasks. The same concentrations of extract plus insulin were added to other muscle cell flasks.Glucose levels were measured in the flasks before and after 60, 120, and 180 minutes after adding of extract. Also the same concentration of UD were added to flask containing RIN5F rat pancreatic beta cells, and insulin and C-peptide level were measured at 0, 60, 120 and 180 minutes. Mean glucose level in the muscle cell media with UD alone and UD plus insulin, at the concentrations and time intervals mentioned, did not change significantly. Insulin levels in pancreatic cells media, before and after applying of UD at different concentrations, and at different times was

[Evaluation of endocrine disorders in patients with thalassemia major]

Thalassemia major is a genetic disorder, in which blood transfusion is critical for the survival of patients. Over the course of the past two and three decades, hypertransfusion therapy in these patients has significantly increased life expectancy and quality of life. Unfortunately however this type of therapy has also increased the frequency of complications due to iron overload. Today endocrine abnormalities are far more common than before in beta-thalassemia patients. The aim of this study was to evaluate the prevalence of endocrine disturbances in patients with thalassemia major, aged over 10 years. Fifty-six patients, aged over 10 years, with thalassemia major were enrolled. Physicians collected demographic data and history of therapies as well as menstrual history in females. Patients were examined to determine their pubertal status and SDS of height for evaluation of short stature. For evaluation of glucose tolerance, fasting blood glucose and oral glucose tolerance tests were performed. Serum levels of calcium, phosphorous, thyroid stimulating hormone, free thyroxin, luteinizing hormone, and follicular stimulating hormone, estradiol in girls and testosterone in boys were measured. Fifty-six patients 10 to 27 years with thalassemia major old were evaluated. In this study, the prevalences of diabetes mellitus, impaired fasting glucose and impaired glucose tolerance test were 8.9%, 28.6% and 7.1% respectively. Short stature [SDS