The role of mitochondrial DNA copy number in female infertility: a bidirectional two-sample Mendelian randomization study DOI Creative Commons

Xiaoju Wan,

Xiaobao Lai,

Meizhen Huang

et al.

Gynecological Endocrinology, Journal Year: 2024, Volume and Issue: 40(1)

Published: Dec. 23, 2024

Background Previous studies on the impact of mitochondrial DNA (mtDNA) copy number female infertility were limited and inconsistent.

Language: Английский

Endocrine-Disrupting Chemicals and Female Reproductive Aging DOI
Jiaxin Wu, Sioḃán D. Harlow, John F. Randolph

et al.

Seminars in Reproductive Medicine, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Female reproductive aging often affects women's emotional, physical, and physiological well-being. Ovarian is characterized by fluctuations in hormones determines the age at which menopause occurs. Understanding potentially modifiable factors that influence this process essential for addressing health disparities, improving quality of life, informing relevant public strategies. This review synthesizes vivo, vitro, epidemiological findings about effects endocrine-disrupting chemicals (EDCs), specifically heavy metals perfluoroalkyl polyfluoroalkyl substances (PFAS) on female aging. Most vivo vitro studies have demonstrated alter ovarian morphology, folliculogenesis, steroidogenesis. Evidence regarding PFAS limited inconsistent. Epidemiological consistently shown are associated with a higher risk diminished reserve (indicated decreased anti-Müllerian hormone) earlier menopause, hormone changes. exposure has been estradiol but not significantly reserve. Gaps literature require more comprehensive research EDCs aging, including reserve, vasomotor symptoms, to inform future interventions reduce hazardous exposures improve health.

Language: Английский

Citations

0

Folicular dynamics, endocrine profiles and endometrial gene expression in fertile and subfertile cows DOI
C. Viñoles,

Ana Beatriz Alvez,

Xiomara González

et al.

Reproduction Fertility and Development, Journal Year: 2025, Volume and Issue: 37(4)

Published: Feb. 2, 2025

Context Subfertility has a negative impact on the productivity of beef cow herds; thus, it is relevant to unravel mechanisms. Aims To study follicular development, body composition, concentrations progesterone and metabolic hormones their gene expression in endometrium during oestrus cycle. Methods Fertile subfertile Hereford cows were classified at 25 (n =84) 60 =25) months old, as (1) fertile, pregnant first insemination 25months, that became pregnantmore than three five times 60months =5), or (2) subfertile, i.e. failed inseminations fewer two opportunities =6). Key results had greater insuling-like growth factor 1 (IGF-1), leptin adiponectin (P P Conclusions Differences plasma fluid endometrial are associated with success pregnancy cows. Implications Strategies improve follicle microenvironments needed herds.

Language: Английский

Citations

0

Evaluation and preservation of fertility in patients with hematologic malignancies DOI Creative Commons
Xuan Wang,

Ruihao Huang,

Lei Liu

et al.

Cancer Letters, Journal Year: 2025, Volume and Issue: unknown, P. 217569 - 217569

Published: Feb. 1, 2025

Language: Английский

Citations

0

Pyruvate Regulates the Expression of DLAT to Promote Follicular Growth DOI Creative Commons

Liuhong Zhang,

Yixuan Guo,

Enyuan Huang

et al.

Cells, Journal Year: 2025, Volume and Issue: 14(6), P. 444 - 444

Published: March 17, 2025

Increasing evidence has suggested that dihydrolipoamide S-acetyltransferase (DLAT), a subunit of the pyruvate dehydrogenase complex, is crucial for metabolism and regulation cell death. The excessive death granulosa cells (GCs) hinders progression follicular growth. However, relationship between DLAT growth poorly understood. Here, we found significantly shortened age pubertal initiation in mice promoted by promoting proliferation GCs. In addition, up-regulated expression high level was observed large follicles, which were associated with Mechanistically, increased mRNA protein levels pathways such as PCNA MCL1 to promote GC proliferation. Additionally, bound CASP3 CASP9 proteins inhibit apoptosis Taken together, these results reveal mechanism regulated growth, represents promising target supports new strategies improving follicles.

Language: Английский

Citations

0

Exposure to Disinfection By-Products and Risk of Diminished Ovarian Reserve: Case-Control Evidence and Cellular Metabolomic Insights DOI Creative Commons
Yichang Tian,

Zelin Wang,

Cong Wang

et al.

Reproductive Toxicology, Journal Year: 2025, Volume and Issue: unknown, P. 108901 - 108901

Published: April 1, 2025

Disinfection of drinking water is a critical measure for ensuring safety and controlling waterborne infectious diseases. However, during the disinfection process, variety by-products (DBPs), some which exhibit reproductive toxicity, are generated. This study aimed to assess whether DBP exposure contributes risk diminished ovarian reserve (DOR) explored underlying metabolic mechanisms. A total 182 participants, including 91 healthy women with DOR, were recruited case-control conducted between October 2023 February 2024. Serum concentrations DBPs, dibromoacetic acid (DBAA), monochloroacetic (MCAA), dichloroacetic (DCAA), trichloroacetic (TCAA), chlorate, perchlorate, measured evaluate exposure. Key indicators evaluating DOR included antral follicle count (AFC), anti-Mullerian hormone (AMH), follicle-stimulating (FSH). All six DBPs higher in patients (all p < 0.05). After covariates, all showed negative correlations AMH AFC, positive basal FSH, significant association To further investigate mechanisms, we an vitro using human granulosa cell line (KGN). KGN cells exposed DBAA perchlorate 48hours, metabolomic analysis was performed identify altered pathways. Metabolomics data suggested that might have contributed by disrupting arginine biosynthesis purine metabolism, respectively. In conclusion, (GC) metabolism.

Language: Английский

Citations

0

Mitochondrial Oxidative Phosphorylation Alterations in Placental Tissues from Early- and Late-Onset Preeclampsia DOI Open Access

Theresa Lehenauer,

Heidi Jaksch‐Bogensperger, Sara Huber

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(9), P. 3951 - 3951

Published: April 22, 2025

Preeclampsia (PE), a pregnancy complication characterized by high blood pressure and organ damage, has been suggested to be associated with mitochondrial dysfunction, although evidence remains limited. This study aimed investigate the activity of oxidative phosphorylation (OXPHOS) enzymes expression related proteins in placental tissues from women diagnosed early-onset preeclampsia (eoPE, <34 weeks gestation), late-onset (loPE, ≥34 normotensive controls. Placental samples were analyzed using immunohistochemistry, western blotting, enzymatic assays assess OXPHOS complexes. Complex I was increased 80% eoPE 56% loPE, positive correlations between normalized complex expression, gestational age at delivery (r = 0.85, p 0.01), birth weight 0.88, 0.004) loPE. Relative II loPE showed duration 0.76, 0.03) 0.77, 0.03), while controls, correlated 0.64, 0.03). Additionally, IV enzyme negatively maternal −0.69, The observed highlight metabolism as promising biomarker for predicting disease progression guiding therapeutic interventions preeclampsia. Unraveling its precise role PE pathogenesis is critical advancing diagnostic precision improving maternal-fetal outcomes.

Language: Английский

Citations

0

On the role of artificial intelligence in analysing oocytes during in vitro fertilisation procedures DOI Creative Commons

Antonio Iannone,

Alessandro Carfì, Fulvio Mastrogiovanni

et al.

Artificial Intelligence in Medicine, Journal Year: 2024, Volume and Issue: 157, P. 102997 - 102997

Published: Oct. 8, 2024

Nowadays, the most adopted technique to address infertility problems is in vitro fertilisation (IVF). However, its success rate limited, and associated procedures, known as assisted reproduction technology (ART), suffer from a lack of objectivity at laboratory level clinical practice. This paper deals with applications Artificial Intelligence (AI) techniques IVF procedures. intelligence considered promising tool for ascertaining quality embryos, critical step IVF. Since oocyte influences final embryo quality, we present systematic review literature on AI-based used assess quality; analyse results discuss several research directions. In particular, highlight how can support process examine their current presented literature. Then, challenges must face fully deploying solutions medical Among them, availability high-quality data sets well standardised imaging protocols formats, use physics-informed simulation machine learning techniques, study informative, descriptive yet observable features, and, above all, studies oocytes specifically about live birth potential. An improved understanding determinants improve rates while reducing costs, risks long-term cultures, bioethical concerns.

Language: Английский

Citations

2

Melatonin supplementation attenuates cuproptosis and ferroptosis in aging cumulus and granulosa cells: potential for improving IVF outcomes in advanced maternal age DOI Creative Commons
Kuan‐Hao Tsui, Chia‐Jung Li, Li‐Te Lin

et al.

Reproductive Biology and Endocrinology, Journal Year: 2024, Volume and Issue: 22(1)

Published: Nov. 8, 2024

Advanced maternal age is associated with decreased oocyte quantity and quality in vitro fertilization (IVF) success rates. This study aimed to investigate whether melatonin supplementation can improve IVF outcomes women of advanced by modulating cuproptosis ferroptosis.

Language: Английский

Citations

1

Causal association between telomere length and female reproductive endocrine diseases: a univariable and multivariable Mendelian randomization analysis DOI Creative Commons

Qiaorui Yang,

Jinfu Zhang,

ZhenLiang Fan

et al.

Journal of Ovarian Research, Journal Year: 2024, Volume and Issue: 17(1)

Published: July 15, 2024

The relationship between leukocyte telomere length (LTL) and female reproductive endocrine diseases has gained significant attention research interest in recent years. However, there is still limited understanding of the exact impacts LTL on these diseases. Therefore, primary objective this study was to investigate genetic causal association by employing Mendelian randomization (MR) analysis.

Language: Английский

Citations

0

Ovarian hemostasis and ovarian reserve: the perspective of a pediatric gynecologist DOI Open Access
E. V. Sibirskaya,

Sergey M. Sharkov,

P.O. Nikiforova

et al.

Russian Pediatric Journal, Journal Year: 2024, Volume and Issue: 27(4), P. 283 - 290

Published: Sept. 16, 2024

Introduction. All current methods of hemostasis used in ovarian surgery inevitably lead to damage healthy follicles. Significant loss reserve childhood can the development premature insufficiency future. Therefore, choice a method that is most gentle on tissue becomes particularly important pediatric gynecology. Materials and methods. Paper search analysis was completed using PubMed, Embase, Cochrane Library Google Scholar databases. This literature review includes systematic reviews, cohort studies, case series, randomized controlled trials (RCTs) from 1989 2024. Results. modern decrease reserve. The rate potential repair depends as well technique hemostasis. According presented data, there no unambiguous opinion between coagulation ligature when working with tissue. Coagulation technically easier less time-consuming than suturing, especially for an inexperienced surgeon. Complications associated technical errors during significant deterioration long-term perspective. Thus, appropriate each clinical situation determined according capabilities, skills, preferences surgeon operation plan. Conclusion. Careful preservation practice paramount importance future reproductive health female patients. When choosing hemostasis, it take into account capabilities skills Further study needed assess impact

Language: Английский

Citations

0