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In recent years,microRNAs(miRNAs)have been detected at different stages of follicular development and in different cells of follicles.Extracellular vesicle(EV)-derived miRNAs have also been detected in the follicular fluid of mature follicles.miRNAs participate in the regulation of normal follicular development,and the regulation disorder may lead to the occurrence of some ovarian diseases.In order to further systematically elucidate the regulatory mechanism of miRNAs on follicular development and find suitable EV-derived miRNAs that can predict oocyte development,we reviewed the functions of miRNAs in follicular development from the perspectives of granulosa cell development,oocyte development,and hormone synthesis.
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http://dx.doi.org/10.3881/j.issn.1000-503X.12683 | DOI Listing |
Vet World
July 2025
Department of Veterinary Science, Faculty of Veterinary Medicine, Rajamangala University of Technology Tawan-OK, Chonburi, Thailand.
Background And Aim: Granulosa cells (GCs) are crucial mediators of follicular development and oocyte competence in goats, with their gene expression profiles serving as potential biomarkers of fertility. However, the lack of a standardized, quantifiable method to assess GC quality using transcriptomic data has limited the translation of such findings into reproductive applications. This study aimed to develop a hybrid deep learning model integrating one-dimensional convolutional neural networks (1DCNNs) and gated recurrent units (GRUs) to classify GCs as fertility-supporting (FS) or non-fertility-supporting (NFS) using single-cell RNA sequencing (scRNA-seq) data.
View Article and Find Full Text PDFVet World
July 2025
Bio-Innovation Research Center, Tokushima University, 779-3233 Tokushima, Japan.
Background And Aim: Porcine follicular fluid (pFF) is frequently used to mimic the follicular microenvironment during maturation (IVM) of oocytes. However, the influence of oxidative stress levels within pFF on oocyte quality and embryo development remains unclear. This study aimed to investigate how varying oxidative stress index (OSI) of pFF affect porcine oocyte meiotic progression, fertilization, and embryonic development during IVM.
View Article and Find Full Text PDFJ Appl Toxicol
September 2025
School of Public Health, Key Laboratory of Special Environmental and Health Research, Xinjiang Medical University, Urumqi, China.
Humans' exposure to arsenic (As) has been associated with the development of various diseases. Some health effects may be mediated by arsenic-induced toxicity to the thyroid and endocrine systems, but its underlying mechanisms remain unclear. The overall aim of our study was focused on using sodium arsenite (NaAsO)-exposed rats to investigate the involvement of the phosphatidylinositol 3-kinase (PI3K) and transcription factor NF-E2-related factor 2 (Nrf2) pathways in toxicity to the thyroid and endocrine systems.
View Article and Find Full Text PDFNat Immunol
September 2025
Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
CD4 T follicular helper (T) cells support tailored B cell responses against multiple classes of pathogens. To reveal how diverse T phenotypes are established, we profiled mouse T cells in response to viral, helminth and bacterial infection. We identified a core T signature that is distinct from CD4 T follicular regulatory and effector cells and identified pathogen-specific transcriptional modules that shape T function.
View Article and Find Full Text PDFZool Res
September 2025
College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong 510642, China. E-mail:
Zona pellucida glycoprotein-1 (ZP1) is essential for maintaining oocyte structural integrity and facilitating fertilization. Mutations in are strongly associated with primary infertility disorders such as fertilization failure and empty follicle syndrome; however, the absence of accurate experimental models has hindered mechanistic understanding and obscured the etiological basis of -related infertility. In this study, CRISPR/Cas9-mediated genome editing was employed to generate two -edited cynomolgus macaques ( ), designated #ZP1-1 (male) and #ZP1-2 (female).
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