effects of betanin of beetroot in polycystic ovary syndrome induced rat

Background: Polycystic ovary syndrome [PCOS] as a common cause of infertility is the endocrine disorder among reproductive-aged women. Nevertheless, the management and treatment of this major problem is not deterministic, and surrounded by many controversies

Objective: In this study the effects of betanin, as red pigment present in red beetroot, in the PCOS induced rats are evaluated

Methods: Sodium valerate was injected intraperitoneally into wistar female rats to induce PCOS for 25 days. The rats were randomly divided into five groups: a normal control group without sodium valerate, Sham [sodium valerate-induced PCOS] group received 0.5 ml distilled water , metformin group and two groups that received betanin at doses of 8 and 16 mg/kg/ day for 30 days after they were administered sodium valerate. The Glucose, lipid profile, gonadotropine hormones were determined using calorimetric assays in PCOS induced rats. Histological examinations were carried out on hematoxylin-eosin stained sections using light microscopy

Results: When compared with sham, betanin caused low ovarian cysts with a high incidence of ovarian primary, antral, graafian follicles and corpus luteum. The plasma glucose, cholesterol, LDL and LH levels were found to be diminished significantly in rats with PCOS whereas plasma HDL and FSH levels were significantly increased

Conclusion: The betanin affected the cysts and follicles of the PCOS induced rats

[ effect of trans-chalcone on amylase activity, blood glucose and lipid levels in diabetic and non diabetic rats]

Alpha amylase is the most important decomposing enzyme in starch. Digestion and absorption of starch in the intestine can be prevented and also the blood sugar levels can be controlled by restrain and control of alpha amylase. The aim of this study was to evaluate the effect of trans-chalcone on amylase activity, blood glucose and lipid levels in diabetic and non diabetic rats. This experimental study was conducted in 1388 at Tehran University of Medical Sciences. Sixty rats were randomly divided to ten equal groups: non diabetic control, diabetic control, four non diabetic experiments and four diabetic experiments. Control groups received grape seed oil and experimental groups received 2, 8,16 and 32 mg/kg of body weight in a period of 24 days with a gastric cannula. Blood sugar, every two days, serum insulin levels in days 0,12, and 24 and at the end of the experiment, lipoproteins and alpha amylase activity were measured. The data were analyzed by one way analysis of variance, ANOVA, followed by Turkeys test with SPSS soft ware. On average Chalcone reduced 25.5% of blood sugar in normal and diabetic rats. IT also decreased the serum insulin level. On average, chalcone decreased 34.9% of alpha amylase activity in normal and diabetic rats. Following disturbances in lipids metabolism caused by diabetes, this drug improved lipoproteins metabolism and reduced water, food and urine volume. This study shows that trans-Chalcone reduces blood sugar and body weight via inhibition of alpha amylas. Moreover, improvement of lipoprotein metabolism may happen via the inhibitory effect of this drug on hydroxyl methyl glutaryl -COA reductase and phosphodiesterase

[Cloning of catalytic domain of exotoxin A from pseudomonas aeruginosa]

Antibody against Pseudomonas aeruginosa exotoxin A can be used in immunotherapy together with antibiotics to treat acute burn patients. Exotoxin A is one of the virulence factors in Pseudomonas aeruginosa that comprises of three domains, binding domain, translocation and catalytic domain. The purpose of this study was to construct the recombinant domain of the catalytic part of this microorganism in order to produce antibody against it. Pseudomonas aeruginosa samples were isolated from burn patients hospitalized in Mousavi Hospital, Zanjan, Iran and its species was identified by Biochemical tests. Bacteria genomic DNA and also the catalyhc domain of exotoxin A was amplified by PCR. PCR Products and plasmid extracts was digested by restriction enzymes. Subsequently PCR products and plasmids transformed into E. coli BL21 [DE3]. Clones containing gene of interest was determined by restriction enzyme digestion and sequencing. The sequence homology of the catalytic domain of exotoxin A was compared with that of the published gene data bank. The results showed a complete homology between our gene species and the published genome in data banks. The results of this study showed that about 90% of the isolated bacteria contained exotoxin A and there was a sequence homology between our species and published gene data banks