The Impact of Zinc Oxide Nanoparticle on LH, FSH, and Testosterone Hormones in Mature Male NMRI Rats

Nanoparticles are widely applied in all aspects of modern life because of their unique features such as small size and high surface area.Several types of research have been carried out to discover the feasible detrimental impacts of Nano-particles on human reproduction. The purpose of this study was to examine the impact of zinc oxide nanoparticles in mature male rats through examining LH, FSH, and testosterone sex hormones. Therefore, 30 Naked Mole-RatInitiative (NMRI) rats were divided into 5 groups. Different doses of zinc oxide nanoparticles (250, 500 and 700 mg.kg-1) were intraperitoneally injected to animals only once. Then, the serum level of luteinizing hormone(LH), Follicle StimulatingHormone (FSH), and testosterone hormones were measured using Enzyme-Linked Immunosorbent Assay (ELISA) method after 21 days. The results were analyzed by ANOVA and Tukey tests. The results indicated that zinc oxide nanoparticles doses caused a significant increase in FSH and testosterone level of blood (Respectively) in 250 and 700mg.kg-1in comparison with the control group. Moreover, this research illustrated that zinc oxide nanoparticle can cause a dose-related increase in Testosterone and FSH hormones levels while causing no significant change in LH hormone level

Recent progress of NR5A1 gene mutation / 国际儿科学杂志

NR5A1 gene mutation is one of the common cause of 46 XY dysplasia (46,XY disorder of sex development,46,XY DSD),which is an autosomal dominant disease.It has wide phenotypes:46,XY gonadal dysplasia is the most common one,site-specific mutations can lead to adrenal dysfunction and may affect the height.In recent years,more and more studies have shown that the mutation of NR5A1 gene can lead to 46,XX ovotesticular DSD and 46,XX testicular DSD.The disease is also characterized by hypergonadotropic hypogonadism,so LH and FSH are high,especially the FSH,leading to a decrease in LH/FSH.The treatment of NR5A1 gene mutation is mainly symptomatic.Gender identification needs to take many factors into consideration.Before puberty,children can use GnRHa to inhibit gonad development and avoid premature ovarian failure.In this review,recent progress of NR5A1 is summarized.

Síndrome de Ovarios Poliquísticos / Polycystic ovary syndrome

Resumen El síndrome de ovarios poliquísticos (SOPQ) es la disfunción endocrino- metabólica más frecuente en mujeres de edad reproductiva. El diagnostico de esta patología se basa en la presencia de anovulación, hiperandrogenismo y ovarios poliquísticos. La etiología del SOPQ es compleja y multifactorial; por lo cual el tratamiento se basa en tratar las manifestaciones clínicas y la inducción de la ovulación en el momento que se desee la concepción.

Abstract Polycystic ovary syndrome is the most common endocrinologic and metabolic disfunction in reproductive- aged women. The diagnosis of this pathology is based on the presence of ovulatory dysfunction, hyperandrogenism and polycystic ovaries. Its ethiology is complex and with multiple factors, therefore its treatment is based on fixing the clinical manifestations of the syndrome and in the case of women who would like to conceive, in inducing ovulation.

Correlation between the Serum Luteinizing Hormone to Folliclestimulating Hormone Ratio and the Anti-Mullerian Hormone Levels in Normo-ovulatory Women

Serum anti-Mullerian hormone (AMH) levels are regarded as an age-specific marker for predicting the ovarian reserve in women of reproductive age. Some studies have shown that the luteinizing hormone (LH)/follicle stimulating hormone (FSH) ratio can be used as a predictor of ovarian reserve. The purpose of this study was to assess the variation of LH/FSH ratio with aging and to evaluate the correlation between serum LH/FSH ratio and AMH levels as a predictor of the ovarian reserve in normo-ovulatory women. We retrospectively analyzed the day 3 serum hormone levels in 1,251 patients (age range: 20-50 yr) between January 2010 and January 2011. We divided the patients into 6 groups according to their age. Relation between serum AMH level and LH/FSH ratio was analyzed statistically. The serum AMH level was inversely correlated with age (r = -0.400, P < 0.001). A significant negative correlation was found between serum LH/FSH ratio and age (r = -0.213, P < 0.001). There was a significant partial correlation between serum LH/FSH ratio and AMH level when adjusted by age (r = 0.348, P < 0.001). The LH/FSH ratio could be considered as a useful marker for the ovarian reserve and could be applied to the clinical evaluation with AMH.

Correlation between the Serum Luteinizing Hormone to Folliclestimulating Hormone Ratio and the Anti-Mullerian Hormone Levels in Normo-ovulatory Women

Serum anti-Mullerian hormone (AMH) levels are regarded as an age-specific marker for predicting the ovarian reserve in women of reproductive age. Some studies have shown that the luteinizing hormone (LH)/follicle stimulating hormone (FSH) ratio can be used as a predictor of ovarian reserve. The purpose of this study was to assess the variation of LH/FSH ratio with aging and to evaluate the correlation between serum LH/FSH ratio and AMH levels as a predictor of the ovarian reserve in normo-ovulatory women. We retrospectively analyzed the day 3 serum hormone levels in 1,251 patients (age range: 20-50 yr) between January 2010 and January 2011. We divided the patients into 6 groups according to their age. Relation between serum AMH level and LH/FSH ratio was analyzed statistically. The serum AMH level was inversely correlated with age (r = -0.400, P < 0.001). A significant negative correlation was found between serum LH/FSH ratio and age (r = -0.213, P < 0.001). There was a significant partial correlation between serum LH/FSH ratio and AMH level when adjusted by age (r = 0.348, P < 0.001). The LH/FSH ratio could be considered as a useful marker for the ovarian reserve and could be applied to the clinical evaluation with AMH.

An Observational Study on 100 Patients with Polycystic Ovarian Syndrome (PCOS).

Background: Women with polycystic ovarian syndrome (PCOS) have chronic anovulation and androgen excess not attributable to another cause. The fundamental pathophysiologic defect is unknown. Defects in LH secretion, LH/FSH ratio, amplitude of LH pulsations have been described; but the prevalence of these defects is not still clearly determined. Objective: To review the variable clinical presentations of polycystic ovarian syndrome. Materials and Methods: This observational study was carried out in Combined Military Hospitals of Jessore, Rangpur and Ghatail during November 2008 to June 2013. One hundred patients attending Gynaecology Outpatient Department (GOPD) having at least two of the following criteria ––hyperandrogenism, chronic oligo- or anovulation and ultrasonographic findings were selected. In all selected women LH and FSH serum levels were determined and LH/FSH ratios were calculated. Body mass index (BMI) was measured and was scored to classify their state of obesity. The collected data were compiled and arranged in tables and were subjected to analysis. Results: Most of the patients (92%) were 20–30 years old. Chief complaint of the patients was infertility, either primary (72%) or secondary (28%). Eighty percent women had menstrual irregularities, 30% were hirsute, 71% cases were overweight and 17% were obese. On pelvic ultrasonogram polycystic ovaries were found in 20% cases and 80% had normal ovaries. Thirty percent patients had LH/FSH ratio between 2.1–2.9, 32% had >3 and it was found normal in 38% of cases. Conclusion: PCOS cannot be diagnosed by a single clinical or laboratory finding. The diagnostic approach should be based largely on history and physical examination.

Gonadotropin hormone level of polycystic ovary syndrome / Монголын Анагаах Ухаан

BackgroundPolycystic ovary syndrome (PCOS) is one of the most common female endocrine disorders affecting women of reproductive age, with a prevalence of about 5%–10% in the general population. PCOS is characterized by menstrual disturbances due to hirsutism, chronic anovulation or oligoovulation, and acne due to excessive androgen production (hyperandrogenemia). The pathogenesis of PCOS is still unexplained. Following the main criteria of diagnosis (Rotterdam Consensus 2003), Dewailly, Welt and Pehlivanov divided the patients with PCOS into 4 phenotype groups: Oligo + HA + PCO, Oligo + HA, HA + PCO, Oligo + PCO. ObjectiveThis aim of the study was to compare gonadotropin levels in serum of reproduction age for comparative healthy women and polycystic ovary syndrome (PCOS).MethodsA cross-sectional study was performed comprising 425 comparative healthy women of reproductive age group 18-35 (<20 n=76, 21-25 n=131, 26-30 n=92, 31-35 n=126). To collect blood sample 4 times of healthy, normal menstrual cycle and body mass index (BMI) of women. To determine FSH, LH hormone in serum by ELISA (Eucardio lab kit used). To evaluate FSH, LH, LH/FSH normal menstrual phase (early follicular phase,late follicular phase, ovulation and mid-luteal phase). PCOS patients divided 2 type (oligo+ha, ha+pco).ResultsThe mean age was group A 26.33±5.28, group B 24.9±4.93, and group C 29.75±4.12, BMI a; 22.35±2.95, b; 28.88±3.85, c; 28.0±3.19. The mean level was FSH a; 4.64±1.65 mIU/ml, b; 12.07±3.85 mIU/ml, c; 5.35±7.20 mIU/ml, LH a; 6.42±3.3 mIU/ml, b; 39.43±15.89 mIU/ml, c; 10.89±2.53 mIU/ml of PCOS. To correlate FSH, LH, LH/FSH level was women was significantly (p<0.05).Conclusion: The increased level of LH, LH/FSH strongly correlates with the clinical degree of amenorrhea and hyperandrogenism.It seems that LH, LH/FSH could be a crucial diagnostic and predictive factor among women with menstrual disorders or presence of polycystic ovaries.

The Effects of Body Mass Index on Baseline Hormonal Status and Glucose Metabolism in Women with Chronic Anovulation / 대한불임학회지

OBJECTIVE: To assess the difference of baseline hormonal status and pathophysiology, and confirm the risk factors for long term complication according to Body Mass Index in women with polycystic ovary syndrome. MATERIALS AND METHODS: Serum level of LH, FSH, Estradiol, Prolactin, Testosterone, DHEA-S, fasting insulin were measured and 100 gm oral glucose tolerance test and endometrial biopsy were performed in total 75 chronic anovulation patients and 20 normal cycling infertility patients. 95 evaluated patients were divided into 3 groups including patients with chronic anovulation having BMI below 25, BMI beyond 25.1, normal cycling infertility patients, Group 1 (n=39), Group 2 (n=36), Group 3 (n=20), respectively. Statistical analysis was performed respect to relationship between BMI and measured hormone level, sum of glucose level during 100 gm OGTT, insulin resistance using t-test, ANOVA test, Post Hoc test, Mann-Whitney test. p<0.05 was considered as statistically significant. RESULTS: Serum LH level and LH/FSH ratio was significantly higher in Group 1, compared than Group 2 or 3 (p<0.05), BMI and LH, LH/FSH ratio was negatively correlated (r=-0.351, r=-0.318). There was no significant difference according to BMI in FSH, testosterone, estradiol, prolactin, DHEA-S level. Fasting insulin and sum of glucose level during 100 gm OGTT were significantly higher in Group 2 compared than Group 1 or Group 3 (p<0.05), there was no significant difference between Group 1 and Group 3. Insulin resistance was more frequently identified in Group 2 compared than Group 1 (p=0.001). CONCLUSIONS: BMI and LH, LH/FSH ratio were negatively correlated, so clinical significance of LH, LH/FSH ratio in diagnosis of PCOS may be attenuated by increasing body weight. Overweight patients with chronic anovulation may be the risk group for developing insulin resistance, hyperinsulinemia, glucose intolerance, later type 2 DM. Hyperinsulinemia may operate mainly in overweight chronic anovulation patients in development of hyperandrogenism.