Background: Leptin, a key hormone in energy homeostasis and neuroendocrine function, has a permissive role in the pathogenesis of reproductive dysfunction. Objective: To assess the role of serum leptin in women with PCOS and to evaluate leptin and insulin levels in PCOS women before and after treatment with metformin. Materials and Methods: Sixty women of reproductive age (18- 38years) were allocated to four groups: 15 obese women with PCOS (BMI >30 kg/m2), 15 obese controls, 15 non-obese women with PCOS (BMI 18 -30 kg/m2), and 15 non-obese controls. Serum leptin and insulin levels were measured and compared between case and control subjects also comparison done pretreatment and after treatment with metformin. Results: There was a significant increase in leptin in nonobese PCOS compared to non-obese control (5.64±1.43), (P value=0.0032), insulin level was significantly higher in PCOS group (15.87±6.65) than control (5.47±1.68), (P value<0.001). There was significant decrease in BMI, leptin and insulin levels after 12 month of metformin treatment in obese and non-obese PCOS subjects. Conclusion: Leptin level increased remarkably with increasing body weight and it is higher in non-obese PCOS women in comparison with non-obese healthy women.
Background: Leptin is an adipocyte —secreted protein that participates in the regulation of energy homeostasis. It prevents the body from storing fat, controls hunger and cravings, regulates food intake and energy expenditure, provides the body with an index of nutritional status and controls the whole body fat metabolism. Leptin is a product of ob gene created by adipocytes. It seems to signal metabolic information to the reproductive system. Objective: The aim of this study to evaluate the relationship between serum leptin and infertility in oligozoospermic men. Materials and Methods: Seventy men were investigated; fertile normozoospermic as a control (n=35) and infertile oligozoospermic (n=35). The patients underwent estimation of body weight (kg), height body mass index (BMI), semen analysis, serum FSH, LH, testosterone and leptin, lipid profile and serum malondialdehyde (MDA). The infertile group was given a treatment course of clomiphene citrate (50 mg) and vitamin E (400mg) and then all the previous parameters were reevaluated after 3 months. Results: Mean body weight was significantly higher in infertile oligozoospermia compared to controls. The height showed no significant difference between the groups. Hormonal profile revealed significant (P=0.0001) difference in FSH between control group and oligozoospermic group (7.04±4.20 versus 3.35±1.47 mIU/ml), but after treatment with clomiphene citrate and vitamin E there is a slight non-significant (P=0.231) decrease in the level of FSH in oligozoospermic group. The level of testosterone showed a statistically significant (P=0.0001) difference between fertile normozoospermic (5.52 ±1.29 ng/ml) and infertile oligozoospermic. This hormone showed a significant (P<0.0001) increase in its level after treatment with clomiphene citrate and vitamin E (3.48±1.56 ng/ml). Other hormone showed non significant difference between the two groups pre and post treatment. Lipid profile showed no significant difference between the two groups. There was no significant (P=0.477) difference in serum MDA between the control and the infertile groups (4.69±1.32 vs. 5.18±1.19 µmol/L) respectively, but after treatment the results showed a mild significant (P=0.026) decrease in comparison to the level in the control group and also a significant (P=0.0001) decrease in comparison to the level before treatment. Infertile oligozoospermic had significantly higher serum leptin level (8.03±1.22 ng/ml) than control (3.62 ± 1.00 ng/ml). Conclusion: Serum leptin demonstrated a significant positive correlation with age, body weight, BMI and a significant inverse correlation with serum testosterone. It had nonsignificant correlation with the height and sperm concentration. These results are suggestive of a link between the adipocyte derived hormone leptin and male reproduction.
Serum chemerin levels are associated with body fat percentage and BMI, and elevated chemerin levels are associated with metabolic problems and inflammatory shifts. This study aimed to evaluate the effect of BMI in serum and follicular fluid chemerin and Leptin levels on patients undergoing ICSI . This study was performed by 44 women who underwent ICSI procedures and divided into two groups based on BMI: the non-obese group, with a BMI<30 and the obese group, with a BMI>30. The result in the non-obese group showed a significant positive correlation was found between Serum chemerin levels, indicating a strong effect size (p< .001). This suggests that as Serum chemerin levels rise, so will FF chemerin. A significant positive correlation of r =0.92 was found between the oocytes retrieved and the Number of metaphases II, indicating a strong effect size (p<.001, This shows that the number of metaphase II oocytes increases as the number of retrieved oocytes increases. A significant positive correlation of 0.66 was found between the number of embryos and the G1 embryo, indicating a large effect size. Conclusion: Serum chemerin had a significant correlation with oocyte maturity and embryo grading, and there was no significant difference between obese and non-obese patients regarding serum chemerin pregnancy.