Anti-Müllerian hormone independently affect mtDNA copy number in human granulosa cells.

BACKGROUND: Recently, as a delayed childbearing trend is emerging in modern women's adulthood, diminished reproductive potential due to age-related changes is more prevalent. Reduction in the abundance of mitochondrial DNA (mtDNA) copies and circulating anti-Müllerian hormone (AMH) have been separately reported with aging, contributing to the decrease in successful reproduction. However, there are limited reports on the impact of age on mtDNA and AMH in the same individual and whether mtDNA copy numbers are influenced by age and AMH. METHODS: In the present study, we utilized a real-time quantitative PCR (RT-qPCR) to quantify the mtDNA copy number of granulosa cells obtained from 43 women undergoing an in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) program. RESULTS: According to our analysis, a significant correlation was observed between age and mtDNA copy number (r = -0.54, P < 0.001) and between age and AMH level (r = -0.48, P < 0.001) of the same individual. There was also a positive correlation between mtDNA copy number and AMH (r = 0.88, P < 0.001) with AMH level falling as mtDNA decreases. In our regression, age and AMH were shown to have low collinearity (VIF = 1.297) but only AMH was correlated with mtDNA quantity (P < 0.001). CONCLUSION: Our study suggests that both mtDNA and AMH abundance are influenced by age and that AMH levels independently affect mtDNA copy number regardless of age. Further research is required to understand the role of AMH on mitochondria bioenergetics.

Vitamin B3 (niacin), B6, C, and iron intake are associated with the free androgen index, especially in normoandrogenic polycystic ovary syndrome

Objective: Nutritional intake is one of the most common environmental risk factors for polycystic ovary syndrome (PCOS) because it is associated with obesity and insulin resistance. The aim of this study was to determine the relationship between micronutrient intake and androgen levels associated with PCOS. Material and Methods: This cross-sectional study was performed in patients with PCOS divided into two groups, normoandrogenic (NA) and hyperandrogenic (HA), and healthy controls. Dietary intake assessment was performed using a modified 38-item semi-quantitative food frequency questionnaire. Bivariate, correlation, and multivariate analyses were performed to determine the association between study variables. Results: There were 79 patients with PCOS, of whom 50 were NA and 29 were HA. There were 66 subjects in the healthy control group. The baseline characteristics in all groups were similar, except for body mass index and hormonal profile which were elevated in the HA group compared to the other groups. There was a significant negative correlation between the free androgen index (FAI) and intake of vitamin B1, vitamin B2, niacin, vitamin B6, calcium, and iron in the NA group, while this association was absent in the HA group. Multivariate linear regression analysis showed that the intake of vitamin B6, vitamin C, niacin, and iron had a significant effect on the FAI. Conclusion: There is an effect of micronutrient intake on androgen levels in women with PCOS. The association was more significant in NA PCOS than in the HA PCOS groups. These findings suggest an association between micronutrients, androgens and PCOS at a systemic level.

The Correlation of Chronological Age and Micro Ribonucleic Acid-135b Expression in Spent Culture Media of In vitro Fertilisation Patient.

Background: The lack of accuracy in embryo viability assessment methods still remains a challenge to increase the in vitro fertilisation (IVF) success rate. The chronological age and micro ribonucleic acid (RNA)-135b influence the quality of the embryo since microRNA-135b expresses stably in the spent culture media. Therefore, microRNA-135b has the potential to become a non-invasive biomarker of IVF embryo quality. Aims: (1) The aim of this study is to determine the chronological age and microRNA-135b expression distribution of IVF patients. (2) to determine the correlation between chronological age and microRNA-135b expression in spent culture media of IVF patients. Study Setting and Design: An observational study was conducted in Yasmin IVF clinic. Materials and Methods: The chronological age data were collected from the medical records and 31 spent culture media samples from 11 IVF patients were taken on day 5 of embryo culture. We also collected the basal media sample as the control group. The microRNA-135b expression was analysed using quantitative real-time polymerase chain reaction (qPCR) analysis. Statistical Analysis Used: The data analysis was performed using IBM SPSS Statistics 25. Results: The chronological age and microRNA-135b expression were distributed abnormally. There was a significant positive correlation with moderate statistical power between chronological age and microRNA-135b expression in spent culture media. MicroRNA-135b expression increased 4.9-fold in spent culture media than basal media of IVF. Conclusions: The increase of chronological age is followed by the rise of microRNA-135b expression in spent culture media of IVF patients. The microRNA-135b is a potential biomarker to predict IVF embryo quality.

Increased Levels of CD107a and Intracellular Cytokines in IL-2 Stimulated PBMCs from Endometriosis Patients.

It has been postulated that the immune system is impaired in individuals with endometriosis, with attention directed to natural killer (NK) cells. Specifically, it has been hypothesized that altered numbers of peripheral NK cells in blood are associated with the presence of endometriotic lesions. This study aimed to evaluate the level of the peripheral NK cell surface marker CD107a in endometriosis in the presence of IL-2 stimulation. Peripheral blood mononuclear cells (PBMCs) were obtained from 7 women with endometriosis and 7 women without endometriosis. The PBMCs were divided into two groups and either treated with recombinant IL-2 or left untreated. The cytotoxic activity of the PBMCs toward target cells (K562) was evaluated. Then, both groups were cocultured for 4 days. The expressions of CD107a, TNF-α, and IFN-γ were determined using flow cytometry analysis. There was no difference in the expression of CD107a prior to IL-2 stimulation in PBMCs from women with endometriosis compared to those from women without endometriosis. However, we observed upregulation of the expression of the surface marker CD107a after treatment in the endometriosis group. In addition, there was a significant difference in CD107a expression in the endometriosis group before versus after stimulation with IL-2 (p < 0.01). We also found no difference in the production of TNF-α and IFN-γ before versus after treatment with IL-2 in either groups. The levels of CD107a were significantly enhanced in peripheral blood taken from women with endometriosis after treatment with IL-2.

Suppressing HOXA-10 Gene Expression by MicroRNA 135b During the Window of Implantation in Infertile Women.

BACKGROUND: Implantation failure has long been identified as a common problem underlying low success rate of IVF. Currently, endometrial receptivity has gained expert attention as it is demonstrated to contribute to successful embryo implantation. MicroRNAs (miRNAs) is known to affect endometrial receptivity through post-transcriptional gene expression regulation. This study aimed to evaluate the expression of miRNA 135b and HOXA-10 during the implantation window in endometrial tissue of infertile women. METHODS: A total of 14 patients diagnosed with infertility in the gynaecology clinic of Cipto Mangunkusumo and Daya Medika hospitals Jakart, Indonesia were selected as the observed group, and 9 fertile patients were enrolled in the control group. Total RNA was isolated from endometrial tissues collected at the secretory phase of the menstrual cycle. The miRNA 135b and HOXA-10 mRNA expression were measured using quantitative real-time PCR (qPCR). The correlation between these variables was then determined using Pearson's correlation coefficient. RESULTS: The expression of miRNA 135b in the infertile group was significantly higher by 1.81-fold compared to the control group (p<0.01), whereas, expression of HOXA-10 mRNA was significantly lower in the infertile group compared to the controls (p=0.047). Significant negative correlation was observed between the expression of miRNA 135b and HOXA-10 mRNA in infertile women (p=0.021; r=-0.607). CONCLUSION: Taken together, this study provides that alteration of miRNA expression is involved in regulating the implantation process partly via modulation of the expression of gene required for implantation.

The Frequency of Chromosomal Euploidy Among 3PN Embryos.

BACKGROUND: The evaluation of embryo morphology is one of the most important parameters used to evaluate developmental timing, also providing an indication of chromosomal failure or degeneration. The first step in the evaluation of a fertilization event is determining the number and shape of the pronuclei (PN). Normally fertilized eggs possess two even PN. However, some embryos which develop from abnormally fertilized zygotes may be tri-pronuclear zygotes (3PN). METHODS: Thirty embryos were collected from 12 women who underwent in vitro fertilization (IVF) at Dr. Cipto Mangunkusumo General Hospital in Jakarta, Indonesia. Embryos were cultured until the blastocyst stage on days 5-6. The blastomere biopsy was performed by piercing the zona pellucida with a laser under a microscope. Chromosomal numerical abnormalities were analyzed using Next Generation Sequencing (NGS). RESULTS: Among the 30 embryos with 3PN zygotes, 33.3% had a normal chromosomal array, with 22 pairs of autosomes and 2 pairs of sex chromosomes. While the rest of sample population detected as abnormal chromosome (66.7%), with the highest percentage of abnormality was triploidy 43.3%, followed by mosaicism 13.4% and aneuploidy 10%. CONCLUSION: This was a preliminary study revealed not all morphologically 3PN embryos are genetically abnormal.