MiR-19b-3p inhibits cell viability and proliferation and promotes apoptosis by targeting IGF1 in KGN cells.

Background: Endometriosis (EM) is a major cause of infertility, but the pathogenesis and mechanisms are not yet fully elucidated. MiR-19b-3p is involved in many diseases, but its functional role in EM-associated infertility remains unexplored. This study aimed to examine miR-19b-3p abundance and IGF1 concentration in cumulus cells (CCs) and follicular fluid of EM-associated infertility patients, and to investigate the potential role of miR-19b-3p in KGN cells by identifying its target and elucidating the underlying mechanisms.

Nampt/SIRT2/LDHA pathway-mediated lactate production regulates follicular dysplasia in polycystic ovary syndrome.

Decreased nicotinamide adenine dinucleotide (NAD) content has been shown to contribute to metabolic dysfunction during aging, including polycystic ovary syndrome (PCOS). However, the effect of NAD on ovulatory dysfunction in PCOS by regulating glycolysis has not been reported. Based on the observations of granulosa cells (GCs) transcriptome data from the Gene Expression Omnibus (GEO) database, the signal pathways including glycolysis and nicotinate-nicotinamide metabolism were significantly enriched, and most genes of the above pathway like LDHA and SIRT2 were down-regulated in PCOS patients.

A new insight on evaluation of the fertility and pregnancy outcome in patients with primary Sjögren syndrome: a propensity score matched study in multi-IVF centers.

Background: Primary Sjögren syndrome (pSS) is often related to adverse neonatal outcomes. But it's currently controversial whether pSS has an adverse effect on female fertility and clinical pregnancy condition. More importantly, it's unclear regarding the role of pSS in oocyte and embryonic development.

Pre-pregnancy obesity is not associated with poor outcomes in fresh transfer in vitro fertilization cycles: a retrospective study.

Purpose: The impact of body mass index (BMI) on in vitro fertilization (IVF) has been well acknowledged; however, the reported conclusions are still incongruent. This study aimed to investigate the effect of BMI on IVF embryos and fresh transfer clinical outcomes.

Methods: This retrospective cohort analysis included patients who underwent IVF/ICSI treatment and fresh embryo transfer from 2014 to March 2022.

Proton pump inhibitors affect sperm parameters by regulating aquaporins.

Proton pump inhibitors (PPIs) were one of the most commonly used drugs in daily life. The adverse effects of long-term use of PPIs have aroused widespread controversy. It was of great significance to explore the molecular mechanism of sperm abnormality caused by PPIs.

Effects of different sperm sources on the clinical outcomes of oocyte maturation cycles combined with intracytoplasmic sperm injection.

Objectives: To evaluate the embryonic developments and clinical outcomes of different sperm sources with cycles of intracytoplasmic sperm injection (ICSI) and maturation (IVM).

Methods: This retrospective study was approved by the hospital ethics committee and conducted in the hospital fertilization (IVF) clinic. From January 2005 to December 2018, 239 infertile couples underwent IVM-ICSI cycles and were divided into three groups according to different sperm sources.

Selective deficiency of UCP-1 and adropin may lead to different subtypes of anti-neutrophil cytoplasmic antibody-associated vasculitis.

Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a systemic autoimmune disease that is prone to respiratory and renal failures. Its major target antigens are serine protease 3 (PR3) and myeloperoxidase (MPO), but the determinants of PR3 and MPO subtypes are still unclear. Uncoupling protein-1 (UCP-1) and adropin (Adr) regulate mutually and play an important role in endothelial cell injury.

Ovarian tissue bank for fertility preservation and anti-menopause hormone replacement.

Traditional fertility preservation methods such as embryo or oocyte cryopreservation cannot meet the needs of a cancer patient or for personal reasons. The cryopreservation of ovarian tissue can be an alternative and has become a hot spot to preserve fertility or hormone replacement. The freezing of ovarian tissue can be carried out at any time without ovarian hyperstimulation to retrieve follicles.

Artificial Ovary for Young Female Breast Cancer Patients.

In recent decades, there has been increasing attention toward the quality of life of breast cancer (BC) survivors. Meeting the growing expectations of fertility preservation and the generation of biological offspring remains a great challenge for these patients. Conventional strategies for fertility preservation such as oocyte and embryo cryopreservation are not suitable for prepubertal cancer patients or in patients who need immediate cancer therapy.

expression in human cumulus cells is associated with embryo development competence.

Embryo quality determines the success of fertilization and embryo transfer (IVF-ET) treatment. Biomarkers for the evaluation of embryo quality have some limitations. Apoptosis in cumulus cells (CCs) is important for ovarian function.

Exosomal lncRNA and mRNA profiles in polycystic ovary syndrome: bioinformatic analysis reveals disease-related networks.

Research Question: What is the role of exosomal lncRNAs and mRNAs profiles and their interaction networks in regulating the development of polycystic ovary syndrome (PCOS)?

Design: LncRNA microarray was used to analyse the expression profiles of lncRNA and mRNA in follicular fluid exosomes from three patients with polycystic ovary syndrome (PCOS) and three control women. Gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were applied to explore biological functions of exosomal mRNAs in PCOS. Six PCOS-related genes were selected, and coding-non-coding gene co-expression (CNC) networks and competing endogenous RNA (ceRNA) networks analysis were combined to reveal lncRNA-miRNA-mRNA interaction networks.

Chromosome aneuploidy analysis in embryos derived from in vivo and in vitro matured human oocytes.

Background: In vitro oocyte maturation (IVM) is being increasingly approached in assisted reproductive technology (ART). This study aimed to evaluate the quality of embryos generated by in-vitro matured immature follicles, as a guideline for further clinical decision-making.

Methods: A total of 52 couples with normal karyotypes underwent in vitro fertilization, and 162 embryos were donated for genetic screening.

Effect of sequential versus single-step culture medium on IVF treatments, including embryo and clinical outcomes: a prospective randomized study.

Purpose: Sequential media G5 series (Vitrolife) and single-step medium Continuous Single Culture Complete (CSC-C) (Irvine Scientific) are two different culture media. We want to examine difference between culturing effects of the two media.

Methods: To compare the fertilization and early embryo development, a prospective randomized controlled trial with sibling oocytes in infertile patients, aged ≤ 45 years with ≥ 8 oocytes (226 cycles) was conducted.

Pathogenic Variants in Cause Acephalic Spermatozoa Syndrome.

Acephalic spermatozoa syndrome is a rare type of teratozoospermia, but its pathogenesis is largely unknown. Here, we performed whole-exome sequencing for 34 patients with acephalic spermatozoa syndrome and identified pathogenic variants in the X-linked gene, , in two patients. Sanger sequencing confirmed the pathogenic variants of in the patients.

Construction of Competing Endogenous RNA Networks Incorporating Transcription Factors to Reveal Differences in Granulosa Cells from Patients with Endometriosis.

This study aimed to reveal the molecular differences in granulosa cells (GCs) from patients with endometriosis (EM). RNA sequencing was performed on GCs from patients with EM-related infertility ( = 3) and controls ( = 3). Differentially expressed long noncoding RNAs [differentially expressed lncRNAs (DELs), |log2 FC|>4, false discovery rate (FDR) <0.

Biallelic mutations in spermatogenesis and centriole-associated 1 like () cause acephalic spermatozoa syndrome and male infertility.

Acephalic spermatozoa syndrome is a rare type of teratozoospermia that severely impairs the reproductive ability of male patients, and genetic defects have been recognized as the main cause of acephalic spermatozoa syndrome. Spermatogenesis and centriole-associated 1 like (SPATC1L) is indispensable for maintaining the integrity of sperm head-to-tail connections in mice, but its roles in human sperm and early embryonic development remain largely unknown. Herein, we conducted whole-exome sequencing (WES) of 22 infertile men with acephalic spermatozoa syndrome.

Biallelic mutations in KATNAL2 cause male infertility due to oligo-astheno-teratozoospermia.

Oligo-astheno-teratozoospermia (OAT) is a common cause of male infertility, and most of idiopathic OAT patients are thought to be caused by genetic defects. Here, we recruited 38 primary infertile patients with the OAT phenotype and 40 adult men with proven fertility for genetic analysis and identified biallelic mutations of KATNAL2 by whole-exome sequencing in two cases. F013/II:1, from a consanguineous family, carried the KATNAL2 c.

Upregulated lnc-HZ02 and miR-hz02 inhibited migration and invasion by downregulating the FAK/SRC/PI3K/AKT pathway in BPDE-treated trophoblast cells.

BPDE (benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide), a metabolite of environmental carcinogenic BaP, weakens the migration and invasion of human villous trophoblast cells and may further induce miscarriage. However, the underlying mechanisms remain largely unknown. In this study, we identified that in trophoblast Swan 71 and HTR-8/SVneo cells, miR-hz02 upregulates the level of lnc-HZ02, which inhibits the expression of an RNA-binding protein HuR.

Research Progress on the Relationship between Obesity-Inflammation-Aromatase Axis and Male Infertility.

Aromatase is a key enzyme in the transformation of androgen into estrogen. Its high expression will destroy the hormonal balance in the male body, and the excessive transformation of androgen into estrogen in the body will further damage the spermatogenic function of the testis, affect the normal development of the sperm, and cause spermatogenic disturbance. Adipose tissue has a high expression of aromatase and shows high enzymatic activity and ability to convert estrogen.

Mutations in are associated with abnormal zona pellucida and female infertility.

Background: The zona pellucida (ZP) of human oocytes plays essential protective roles in sperm-egg interactions during fertilisation and embryo development. -null female rabbits exhibit a thin and irregular ZP, which severely impairs embryo development and fertility. However, the effects of defect on human female reproduction remain unknown.

PTEN Expression in Human Granulosa Cells Is Associated with Ovarian Responses and Clinical Outcomes in IVF.

The ovarian reserve determines the success of in vitro fertilization (IVF) and embryo transfer treatment. It predicts the ovarian response in controlled ovarian hyperstimulation cycles. Apoptosis in granulosa cells surrounding oocytes is important for ovarian function and has been closely associated with follicular atresia.

A familial analysis of two brothers with azoospermia caused by maternal 46,Y, t(X; 1) (q28; q21) chromosomal abnormality.

Chromosomal abnormality is a primary genetic factor that lead to azoospermia and male infertility. Here, we report the cases of two brothers with primary infertility, whose chromosomes displayed a balanced translocation, and their karyotypes were 46,Y, t(X; 1) (q28; q21). Both presented an azoospermia phenotype without abnormal clinical symptoms.

Circular RNA expression profiling and bioinformatic analysis of cumulus cells in endometriosis infertility patients.

To explore the circular RNA (circRNA) profile in cumulus cells from endometriosis-associated infertility patients. The expression of circRNAs was profiled by high-throughput sequencing. Sanger sequencing was performed to identify the backsplicing site.

Whole-exome sequencing in patients with premature ovarian insufficiency: early detection and early intervention.

Background: The loss of ovarian function in women, referred to as premature ovarian insufficiency (POI), is associated with a series of concomitant diseases. POI is genetically heterogeneous, and in most cases, the etiology is unknown.

Methods: Whole-exome sequencing (WES) was performed on DNA samples obtained from patients with POI, and Sanger sequencing was used to validate the detected potentially pathogenic variants.