Evaluation of ovarian reserve after laparoscopic surgery in patients with polycystic ovary syndrome

Anti-mullerian hormone levels before and after ovarian drilling in polycystic ovary syndrome: has this an effect on fertility?

BACKGROUND

Polycystic ovary syndrome (PCOS) is the most common endocrine, metabolic, and multi-causal disorder in the reproductive period with a possible genetic origin. Women with PCOS are characterized by oligo-ovulation, clinical or biochemical hyperandrogenism, and polycystic ovaries. Women with PCOS have an increased number of antral follicles. Anti-Mullerian hormone (AMH), a dimeric glycoprotein produced from the granulosa cells of the pre-antral and antral follicles, is elevated in PCOS. AMH has been implicated in two stages of follicle dysfunction that lead to the development of PCOS. The level of AMH decreases following ovarian drilling in patients with PCOS. The present study compared the level of AMH before and after Laparoscopic ovarian drilling (LOD) in patients with PCOS and its effect on fertility.

MATERIALS AND METHODS

This cohort study was carried out on 84 women with PCOS who underwent LOD in Akbarabadi Hospital in Tehran in 2020. Demographic characteristics, AMH, and estradiol levels were determined before surgery and compared with the amount one week after surgery. The effect of AMH level on pregnancy rate was also evaluated.

RESULTS

The mean age of the patients was 29.01 ± 4.01 years. The mean Body Mass Index (BMI) of the patients was 26.33 ± 4.14 kg/m². The results showed that the mean AMH level decreased significantly after ovarian drilling (P-value < 0.001). Menstrual cycle distribution was significantly different before and after LOD (P < 0.001). None of the variables had an effect on the pregnancy (P-value > 0.05). Oligomenorrhea in the previous menstrual period might cause AMH levels to increase by 3.826 units after LOD (P-value < 0.001).

CONCLUSION

Measuring serum AMH concentration before treatment can be a useful tool to predict LOD outcomes. This can help in selecting the patient for treatment.

TRIAL REGISTRATION

The project was found to be under the ethical principles and the national norms and standards for conducting research in Iran with the approval ID and issue date of IR.IUMS.FMD.REC.1397.206 and 2018.08.26 respectively, which has been registered with the research project number 2766 in the Vice-Chancellor for Research and Technology Development of Iran University of Medical Sciences, School of Medicine, Tehran, Iran. URL: https://ethics.

RESEARCH

ac.ir/EthicsProposalView.php?id=34791 .

Vitamin D and Polycystic Ovary Syndrome: a Narrative Review

Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders of reproductive age women and contributes to metabolic dysfunctions including insulin resistance (IR) and dyslipidemia. Vitamin D is a steroid hormone, which is involved in calcium metabolism and bone structure and has a potential role in the prevention of many illnesses, including cancers, autoimmune disorders, hypertension, diabetes, and obesity. Recently, it has been reported that vitamin D deficiency was a common complication of PCOS and vitamin D status was associated with reproductive ability, metabolic alterations, and mental health of PCOS patients. This review summarizes the advances between vitamin D status and the pathophysiological process of PCOS. Vitamin D level was negatively associated with serum androgen level. Vitamin D treatment could reduce serum androgen and anti-MüllerianHormone (AMH) levels, and decrease endometrial thickness, which resulted in improvement of menstrual cycle and folliculogenesis of PCOS patients. Moreover, vitamin D concentrations were negatively correlated with parameters of IR and body fat mass. Vitamin D supplementation has beneficial effects on IR and lipid metabolism. In addition, a positive of vitamin D on mental health of PCOS patients was proposed. Understanding the relationship between vitamin D status and the symptoms of PCOS patients is of great clinical significance to treat and prevent the progression of PCOS.

Relationship between Serum Levels of Anti-Mullerian Hormone, Adiponectin and Oxidative Stress Markers in Patients with Polycystic Ovary Syndrome

Background

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age. Anti-Mullerian hormone (AMH) is a valid indicator of ovarian function and is used for PCOS diagnosis. Some studies have shown that adipokines affect the synthesis of AMH, and therefore they are somehow related in function. The aim of the present study was to determine the relationship between serum levels of AMH, adiponectin and oxidative stress markers in PCOS patients.

Materials and Methods

In this cross-sectional study, PCOS patients and healthy women (80 cases in total) were investigated. Serum levels of AMH, adiponectin, gonadotropins, androgens, total antioxidant capacity (TAC), nitric oxide (NO) and insulin resistance (IR) were measured by standard methods. An independent t test was used to compare the two groups and Pearson correlation coefficient was used to determine the relationship between variables.

Results

There was a significant difference between the means of AMH (5.16 ± 5.3 vs. 2.44 ± 2.5 ng/mL) (P=0.007) and adiponectin (24.55 ± 9.41 vs. 30.57 ± 14.2 μg/L) (P=0.029) among the PCOS and control groups, respectively. The correlation between AMH and adiponectin in the control group was statistically significant and negative (P=0.028, r=-0.35), while in the PCOS group it was not significant (P=0.11, r=-0.25).

Conclusion

Various biochemical and hormonal factors differ between PCOS and healthy women. Different factors can influence AMH and adiponectin levels independently of PCOS in women of reproductive age.

Comparison of Laparoscopic Ovarian Drilling Success between Two Standard and Dose-Adjusted Methods in Polycystic Ovary Syndrome: A Randomized Clinical Trial

Background

One of the treatment methods for increasing the ovarian response to ovulation induction in polycystic ovary syndrome (PCOS) is laparoscopic ovarian drilling (LOD). The optimal amount of the electrosurgical energy discharged in the ovaries to achieve maximum treatment response with minimal follicle injury is unknown. This study was performed to compare the success level of LOD by means of standard and dose-adjusted treatment methods among infertile clomiphene-resistant PCOS women.

Materials and Methods

This randomized clinical trial was conducted on infertile clomiphene citrate-resistant PCOS women in the Gynaecology Department of Imam Reza Hospital between 2016 and 2017. The patients were randomly di- vided into two groups based on the ovarian cautery method. The two groups were examined and compared regarding the antral follicles, the serum levels of anti-Müllerian hormone (AMH), androgens, and mid-luteal progesterone one month after surgery. The regularity of cycles, ovulation, and pregnancy were examined monthly up to six months after surgery.

Results

In total, 60 women received bilateral LOD (n=30 per group). The level of AMH (P=0.73), testosterone (P=0.91), and dehydroepiandrosterone sulphate (DHEAS, P=0.16) did not differ at study entrance and one month after ovarian cautery [P=0.94 (AMH), P=0.46 (testosterone), and P=0.12 (DHEAS)] and for postoperative mid-luteal pro- gesterone (P=0.31). Intragroup comparisons showed a statistically significant difference in the decrease in the number of antral follicles and testosterone in the standard group (P=0.02) and AMH level in the cautionary dose-adjusted group (P=0.04). We observed no difference in cycle regularity (P=0.22), ovulation (P=0.11), and pregnancy (P=0.40) between the two groups after six months.

Conclusion

The results indicated that there was no difference between the two methods of ovarian cautery with re- gards to establishing cycle regularity and ovulation. The standard treatment was effective in decreasing the numbers of antral follicles and testosterone levels, whereas the dose-adjusted method significantly affected the decrease in AMH levels (Registration Number: IRTC20171210037820N1).

The impact of repetitive oocyte retrieval on the ovarian reserve: a retrospective cohort study

PURPOSE

To investigate a possible influence of repetitive micro-traumata on the ovaries in the course of oocyte retrieval during IVF/ICSI treatment on serum anti-Müllerian hormone (AMH) levels.

METHODS

The study included retrospectively collected data from women who underwent three or more consecutive IVF/ICSI treatments between 2007 and 2017. The primary endpoint of the study was to evaluate changes in serum AMH levels on cycle days 1-3 during the course of repetitive IVF/ICSI treatments.

RESULTS

A total of 125 patients were included in this study. Median AMH levels before the first, second and third IVF/ICSI cycles were 3.8 ng/mL (IQR 1.8-7.1), 3.3 ng/mL (IQR 1.8-6.1) and 3.0 ng/mL (IQR 1.6-5.3), respectively (p = n.s.). In patients who underwent IVF/ICSI due to polycystic ovary syndrome (PCOS), we found a significant decrease in AMH serum levels between the first [AMH 9.7 ng/mL (IQR 7.4-14.4)] and the third [AMH 5.3 ng/mL (IQR 3.3-10.4)] IVF/ICSI cycles (p = 0.026). When performing a generalized linear model, we found PCOS to be an independent predictor for serum AMH decrease during the course of three oocyte retrievals (p < 0.001).

CONCLUSIONS

When comparing the indications for IVF/ICSI, we observed a significant decrease in AMH serum levels after repetitive oocyte retrievals only in women with PCOS, while the decrease in AMH was not significant in patients with tubal factor, endometriosis, male factor and unexplained infertility. This finding leads us to hypothesize that repetitive micro-traumata on the ovarian cortex might diminish/normalize functional ovarian reserve in women with PCOS. Further prospective studies are highly warranted to allow firm conclusions.

Evaluation of Relationship between Body Mass Index with Vitamin D Receptor Gene Expression and Vitamin D Levels of Follicular Fluid in Overweight Patients with Polycystic Ovary Syndrome

BACKGROUND

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder associated with reproductive disorders and metabolic dysfunctions including insulin resistance. The roles of vitamin D in the regulation of metabolic modulations specifically involving insulin and reproduction processing are introduced. In addition, obesity appears to be closely associated with severity of PCOS. The present study is to evaluate the effect of body mass index (BMI) on vitamin D levels in follicular fluid and vitamin D receptor (VDR) expression levels in granulos cells.

MATERIALS AND METHODS

A comparative study was conducted on 80 women with average age of 20-35 years referred for in vitro fertilization (IVF). Patients were divided into four groups, and serum levels of testosterone and insulin resistance (IR) were evaluated at the puncture time. Also, vitamin D levels of follicular fluid were evaluated. VDR gene expression was assayed by quantified-polymerase chain reaction (PCR) technique. Correlations were evaluated with calculation of the Spearman coefficient, and also independent relationships were assessed by means of multiple regression analysis.

RESULTS

Vitamin D levels of follicular fluid decreased in PCOS patients compared with non-PCOS. Also, over-weight individuals had lower vitamin D levels compared with normal-weight patients. Vitamin D levels of follicular fluid were highly correlated with BMI (r=-0.51, P<0.01). Homeostatic model assessment-IR (HOMA-IR) values were significantly higher in women of PCOS/overweight and PCOS/normal weight in comparison with women of non-PCOS/normal weight (P<0.01). The gene expression data of VDR in granulosa cells were significantly lower in the PCOS/overweight group compared with the non-PCOS/normal weight (P<0.01).

CONCLUSION

The findings indicated significant differences in VDR gene expression in granulosa cells and vitamin D of follicular fluid in PCOS/overweight patients.