Results 91 to 100 of about 75,810 (239)

Reproductive Challenges of the Ageing Female: A Comprehensive Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Changes in societal norms over the last few decades have resulted in novel family planning trends, notably delayed childbearing and increased maternal age at the birth of the first child. Despite advances in reproductive medicine, ageing poses significant challenges.
Sofia Bitzika, Meletios P. Nigdelis, Angelos Daniilidis, Erich‐Franz Solomayer, Irene Lambrinoudaki, Efstratios M. Kolibianakis, Dimitrios G. Goulis   +6 more
wiley   +1 more source

Microbial and Metabolic Correlates of Endometrial Dysfunction in Polycystic Ovary Syndrome: A Translational Study

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective Women with polycystic ovary syndrome (PCOS) exhibit a substantially increased risk of miscarriage, yet the underlying mechanisms remain inadequately understood. This study aimed to investigate whether specific gut microbial dysbiosis and metabolic disturbance are associated with and may potentially contribute to endometrial ...
Mengyu Jing, Xi Chen, Meiyan Jiang, Huiya Fang, Xiaoming Zhu, Xuejing Jin, Yonghui Jiao, Ningning Hou, Weiwei Gong, Aixia Liu   +9 more
wiley   +1 more source

Indications and Efficacy of Progestogen‐Monotherapy as Menopause Hormone Therapy: A Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Menopausal hormone therapy (MHT) remains the most effective treatment for vasomotor symptoms (VMS) and other manifestations of menopause; however, its use is limited in women with contraindications to oestrogen. Progestogen monotherapy, though historically underutilized, represents a viable alternative in this population. This narrative review
Chloe Thomas, Olivia Carere, Lauren Clarfield, Michelle Jacobson   +3 more
wiley   +1 more source

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

Integrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding   +5 more
wiley   +1 more source

Response to an estradiol-based fixed-time artificial insemination (FTAI) protocol in postpartum beef cows: interaction between the ovulatory inductor and the genotype [PDF]

Journal of Central European Agriculture
To evaluate if the ovulatory inducer, the genotype, and their interaction affect the reproductive response to a fixed-timed artificial (FTAI) protocol and to determine whether this protocol improves the breading season pregnancy rate (PR), a total of 242
Cyndi HERNÁNDEZ-CORONADO, Rene CALDERÓN-ROBLES, Ana ROSALES-TORRES, Ricardo FAUSTINO-CARMONA, Adrian Guzmán-Sánchez   +4 more
doaj   +1 more source

Voltage-gated calcium channel activity of gonadotropin-releasing hormone (GnRH) neurons is altered by age and by prenatal androgen exposure in female mice. [PDF]

J Neuroendocrinol
Abstract Polyendocrine metabolic ovarian syndrome (PMOS), a common cause of infertility, is marked by persistently high luteinizing hormone (LH) pulse frequency, presumably driven by high‐frequency GnRH pulses. Prenatally androgenized (PNA) mice mimic neuroendocrine PMOS symptoms including high LH‐pulse frequency.
Chen X, Jaime J, DeFazio RA, Moenter SM.
europepmc   +2 more sources

Systemic Therapy Management Strategies for Early‐Stage Breast Cancer in Australia

Asia-Pacific Journal of Clinical Oncology, EarlyView.
Advances in systemic therapy for early‐stage breast cancer in Australia highlight genomic‐guided decisions, subtype‐specific strategies, and emerging targeted and immunotherapies, shaping personalized and de‐escalated treatment approaches. ABSTRACT Breast cancer is the most common cancer among Australian women, with early‐stage disease (Stages I, II ...
Nicholas Zdenkowski, Rachel Dear, Sanjeev Kumar, Hilary Martin, Dhanusha Sabanathan, Stephen J. Luen, Belinda Yeo   +6 more
wiley   +1 more source

Identification of MEF2A, MEF2C, and MEF2D interactomes in basal and Fsk‐stimulated mouse MA‐10 Leydig cells

Andrology, EarlyView.
Abstract Background Myocyte enhancer factor 2 transcription factors regulate essential transcriptional programs in various cell types. The activity of myocyte enhancer factor 2 factors is modulated through interactions with cofactors, chromatin remodelers, and other regulatory proteins, which are dependent on cell context and physiological state.
Karine de Mattos, Marie‐Pier Scott‐Boyer, Arnaud Droit, Robert S. Viger, Jacques J. Tremblay   +4 more
wiley   +1 more source

Loss‐of‐Function Variants in CCDC189 Cause Human Oligoasthenoteratozoospermia by Disrupting Sperm Flagellar and Acrosomal Architecture

Andrology, EarlyView.
ABSTRACT Background Oligoasthenoteratozoospermia (OAT), characterized by reduced sperm count, impaired motility, and abnormal morphology, is a major cause of male infertility with substantial genetic heterogeneity. However, the underlying genetic etiology remains unresolved in a large proportion of affected individuals.
Jianteng Zhou, Ghulam Mustafa, Tingting Lin, Jingwei Ye, Huan Zhang, Hanwei Jiang, Kexin Yang, Guoning Huang, Qinghua Shi   +8 more
wiley   +1 more source

GnRH-E1 RNA, Gnrh1 mRNA, and Gnrh1 pre-mRNA stability following actinomycin D treatment of GT1-7 neurons.

, 2016
GT1-7 neurons were treated with either DMSO control vehicle (black bars) or 1 μg/mL actinomycin D (white bars). Total RNA was harvest at 2, 4, 8, and 24 hours after treatment.
Liza E. Brusman (3157143), Pamela L. Mellon (3157146), Polly P. Huang (352229), Nicholas J. G. Webster (195220), Anita K. Iyer (3157140)   +4 more
core   +1 more source