Exosomes derived from hypoxic mesenchymal stem cells restore ovarian function by enhancing angiogenesis.

Background: hucMSC-exosomes can be engineered to strengthen their therapeutic potential, and the present study aimed to explore whether hypoxic preconditioning can enhance the angiogenic potential of hucMSC-exosomes in an experimental model of POF.

Methods: Primary hucMSCs and ROMECs were isolated from fresh tissue samples and assessed through a series of experiments. Exosomes were isolated from hucMSCs under normoxic or hypoxic conditions (norm-Exos and hypo-Exos, respectively) and then characterized using classic experimental methods.

Association of dietary preferences with primary ovarian insufficiency (POI): a mendelian randomization-based analysis.

Background: Primary ovarian insufficiency (POI) is a critical cause of infertility and is increasingly recognized as a complex metabolic disorder. Dietary factors may influence the risk of POI, but causal relationships remain unclear.

Methods: We conducted an MR study using genetic instrumental variables for 83 dietary preferences from the UK Biobank, with the Inverse Variance Weighted method as the primary analysis.

Berberine promotes primordial follicle activation and increases ovulated oocyte quantity in aged mice.

Background: Primordial follicle activation is vital for the reproduction of women with advanced age and premature ovarian insufficiency (POI). But there is a lack of effective and safe therapeutic options to activate their primordial follicles in vivo. Berberine (BBR) possesses multiple pharmacological properties, but its impact on primordial follicle activation remains unclear.

miR-21-loaded bone marrow mesenchymal stem cell-derived exosomes inhibit pyroptosis by targeting MALT1 to repair chemotherapy-induced premature ovarian insufficiency.

Chemotherapy is essential for treating malignant tumors, but it can cause premature ovarian insufficiency (POI). Recent studies suggest that exosomes enriched with miR-21 (miR-21-Exo) may help mitigate POI, though the underlying mechanisms remain largely unexplored. This research investigates how miR-21-Exo influences chemotherapy-induced POI using an experimental model where KGN cells are exposed to cisplatin.

Epigenomic Landscape of Human Cumulus Cells in Premature Ovarian Insufficiency Using Single-Base Resolution Methylome and Hydroxymethylome.

Premature ovarian insufficiency (POI) has recently been reported to be linked with epigenetic changes. Previous studies have focused on the regulation of individual genes associated with ovarian function through single-gene epigenetic variations; however, there is a deficiency in the comprehensive comprehension of the epigenetic profile for POI. Therefore, we conducted a multi-omics study integrating methylation, hydroxymethylation and transcriptome sequencing analyses in cumulus cells from women with POI and their matched controls.

Impact of psychological stress on ovarian function: Insights, mechanisms and intervention strategies (Review).

Mental stress may lead to ovarian dysfunction. Psychological stress disrupts ovarian function, leading to adverse fertilization outcomes, premature ovarian insufficiency and decreased ovarian reserve. Furthermore, psychological stress caused by decreased ovarian function and infertility can exacerbate the mental burden.

Bi-allelic variants in DAP3 result in reduced assembly of the mitoribosomal small subunit with altered apoptosis and a Perrault-syndrome-spectrum phenotype.

The mitochondrial ribosome (mitoribosome) synthesizes 13 protein subunits of the oxidative phosphorylation system encoded by the mitochondrial genome. The mitoribosome is composed of 12S rRNA, 16S rRNA, and 82 mitoribosomal proteins encoded by nuclear genes. To date, variants in 12 genes encoding mitoribosomal proteins are associated with rare monogenic disorders and frequently show combined oxidative phosphorylation deficiency.

The best ovarian reserve marker to predict ovarian response following controlled ovarian hyperstimulation: a systematic review and meta-analysis.

Background: One of the most challenging aspects of treating patients facing primary ovarian insufficiency, especially those eligible for controlled ovarian hyperstimulation (COH), is the assessment of ovarian function and response to stimulatory protocols in terms of the number of oocytes retrieved. The lack of consistency between studies regarding the best parameter for response evaluation necessitates a comprehensive statistical analysis of the most commonly utilized ovarian reserve markers (ORM). This systematic review and meta-analysis aims to establish the optimal metric for assessing ovarian reserve among COH candidates.

Hypoxic mesenchymal stem cell-derived exosomal circDennd2a regulates granulosa cell glycolysis by interacting with LDHA.

Background: Premature ovarian insufficiency (POI) is an ovarian dysfunction disorder that significantly impacts female fertility. Ovarian granulosa cells (GCs) are crucial somatic components supporting oocyte development that rely on glycolysis for energy production, which is essential for follicular growth. Hypoxia-induced exosomal circRNAs regulate glycolysis, but their biological functions and molecular mechanisms in POI are largely unexplored.

Acupuncture and related therapies for anxiety and depression in patients with premature ovarian insufficiency and diminished ovarian reserve: a systematic review and meta-analysis.

Background: The decreased ovarian function has a negative impact on the mental health of women and increases the risk of anxiety and depression. A growing number of clinical studies have demonstrated that acupuncture-related therapies can effectively and safely restore hormone levels and improve ovarian reserve function. However, the effectiveness of acupuncture-related therapies in alleviating anxiety and depression symptoms in patients with ovarian hypofunction has not been thoroughly evaluated.

Genetic risk stratification and risk factors of early menopause in women: a multi-center study utilizing polygenic risk scores.

Objective: This study aims to evaluate the utility of polygenic risk scores (PRS) in women with early menopause (EM) and to investigate the clinical characteristics and risk factors associated with EM based on genetic risk.

Study Design: Genotyping data and clinical data from women with EM and women with normal age of menopause retrieved from UK Biobank were used for early menopause risk prediction model establishment. Subsequently, 99 women diagnosed with EM and 1027 control women underwent PGT-M were recruited for model validation from across eight hospitals in China.

MicroRNAs as Biomarkers and Therapeutic Targets in Female Infertility.

The study of microRNAs (miRNAs) has emerged in recent decades as a key approach to understanding the pathophysiology of many diseases, exploring their potential role as biomarkers, and testing their use as future treatments. Not only have neurological, cardiovascular diseases, or cancer benefited from this research but also infertility. Female infertility, as a disease, involves alterations at multiple levels, such as ovarian and uterine alterations.

Novel PNPLA8 variants associated with primary ovarian insufficiency, tremors, cerebellar ataxia and limb weakness: a case report and literature review.

Background: PNPLA8 is a gene that causes an autosomal recessive mitochondrial disease characterised by microcephaly and intractable epilepsy in infants and cerebellar ataxia and limb weakness in adults. Herein, we report the clinical, muscle pathology, and brain imaging features of an adult patient with new variants of PNPLA8.

Methods: A 27-year-old Chinese woman presented with abnormal gait at age 11, remained amenorrhoeic with an infantile uterus at age 17, and presented with head and limb tremors at age 21.

Microbial harmony in female reproductive health: exploring the impact of intestinal flora on ovarian function and disease pathogenesis.

The intestinal microbiota is vast in type and quantity and it plays a critical role in regulating various physiological functions in the host, including intestinal function, immune response and energy metabolism. Existing research shows that intestinal flora is associated with various hormones, cell cycles and ovarian function-related diseases in the female ovaries. Certain microorganisms within the intestinal flora can modulate the levels of hormones secreted by the ovary, such as estrogen and androgens.

Comparison of 68Ga-FAPI PET CT/MRI and 18F-FDG PET/CT in metastatic lesions of gynecological cancers: a systematic review and head-to-head meta-analysis.

Background: 68Ga-labled fibroblast activating protein inhibitor (68Ga-FAPI) represents a new and exciting positron emission tomography-computed tomography/magnetic resonance (PET-CT/MR) radiotracer.

Purpose: To compare the diagnostic efficacy of 68Ga-FAPI PET CT/MR and 18F-fluorodeoxyglucose (18F-FDG) PET/CT in metastatic lesions of gynecological cancers (GCs).

Material And Methods: The PubMed, Embase, and Web of Science databases were thoroughly investigated from inception until 22 December 2023.

N-Methyladenosine Modification on the Function of Female Reproductive Development and Related Diseases.

Background: N6-methyladenosine (m6A) modification is a widespread and reversible epigenetic alteration in eukaryotic mRNA, playing a pivotal role in various biological functions. Its significance in female reproductive development and associated diseases has recently become a focal point of research.

Objective: This review aims to consolidate current knowledge of the role of m6A modification in female reproductive tissues, emphasizing its regulatory dynamics, functional significance, and implications in reproductive health and disease.

Evidence-based guideline: premature ovarian insufficiency.

Study Question: How should premature/primary ovarian insufficiency (POI) be diagnosed and managed based on the best available evidence from published literature?

Summary Answer: The current guideline provides 145 recommendations on symptoms, diagnosis, causation, sequelae, and treatment of POI.

What Is Known Already: Premature ovarian insufficiency (POI) presents a significant challenge to women's health, with far-reaching implications, both physically and emotionally. The potential implications include adverse effects on quality of life; fertility; and bone, cardiovascular, and cognitive health.

Turner syndrome: fertility, familial clustering, and cancer risk.

Study Question: Is there an increased risk of reproductive or colon cancer in women with Turner syndrome and their family members?

Summary Answer: Our data suggest that there is an increased risk for sigmoid colon cancer in women with Turner syndrome and an increased prostate cancer risk in second- and third-degree male relatives.

What Is Known Already: Turner syndrome has been associated with lower risk of breast cancer, but increased risk of gonadoblastoma and colon cancer in some, but not all studies. There is also evidence for a genetic predisposition to sex chromosome aneuploidy, which may indicate a predisposition to Turner syndrome and the associated cancer risk in family members.

The effects of acupuncture on patients with premature ovarian insufficiency and polycystic ovary syndrome: an umbrella review of systematic reviews and meta-analyses.

Background: Previous studies have suggested that acupuncture could improve the clinical outcomes of women with premature ovarian insufficiency (POI) and polycystic ovary syndrome (PCOS). However recent meta-analyses have provided inconclusive findings. This umbrella meta-analysis aimed to explore the effect of acupuncture therapies on PCOS and POI outcomes.

Evidence-based guideline: Premature Ovarian Insufficiency.

Study Question: How should premature/primary ovarian insufficiency (POI) be diagnosed and managed, based on the best available evidence from published literature?

Summary Answer: The current guideline provides 145 recommendations on symptoms, diagnosis, causation, sequelae and treatment of POI.

What Is Known Already: Premature ovarian insufficiency (POI) presents a significant challenge to women's health, with far-reaching implications, both physically and emotionally. The potential implications include adverse effects on quality of life; fertility; and bone, cardiovascular and cognitive health.