Results 31 to 40 of about 58,363 (266)

Female reproductive decline is determined by remaining ovarian reserve and age. [PDF]

PLoS ONE, 2014
The early decline and loss of female fertility in humans and other species represents an evolutionary paradox. Despite being born with a vast stock of oocytes, females encounter an exhaustion of ovarian reserve and sterility half way through their ...
Pawel Wilkosz, Gareth D Greggains, Tom G Tanbo, Peter Fedorcsak   +3 more
doaj   +1 more source

Peptide Regulators in the Ovarian Follicle [PDF]

Australian Journal of Biological Sciences, 1981
Data generated within the last several years have shown that follicular fluid contains substances, presumably peptide in nature, which exert potentially important effects on granulosa cells and the oocyte. This review briefly summarizes the current evidence concerning the nature and importance of these putative regulators including the luteinization ...
openaire   +2 more sources

The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo, Miriam A. Bornhorst, Angela J. Waanders, Sara Zarnegar‐Lumley, Ashwin Lakshman Koppayi, Lucy A. Godley   +5 more
wiley   +1 more source

Short-term culture of adult bovine ovarian tissues: chorioallantoic membrane (CAM) vs. traditional in vitro culture systems

Reproductive Biology and Endocrinology, 2018
Background A suitable culture system is important for follicle growth in adult bovine ovarian tissue. This study aimed to assess the avian chorioallantoic membrane (CAM) for short-term culture of adult bovine ovarian tissues compared with a traditional ...
Kylie Beck, Jaswant Singh, Mohammad Arshud Dar, Muhammad Anzar   +3 more
doaj   +1 more source

Ovarian reserve in patients who have undergone endometriosis surgery [PDF]

Vojnosanitetski Pregled, 2018
Background/Aim. Endometriosis is a gynaecological disorder characterized by the presence of endometrial tissue outside the uterine cavity. The aim of this paper was to determine the effect of laparoscopic cystotomy and cystectomy on ovarian function, as ...
Džatić-Smiljković Olivera, Vasiljević Mladenko, Rudić Ivana, Vugdelić Jelena, Ristić Aleksandar, Vugdelić Rada   +5 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

Fractionation of Ovarian Follicles and in vitro Oocyte Maturation and Ovulation Assay of Ciona intestinalis Type A

Bio-Protocol, 2020
Ascidians are the closest living relatives of vertebrates (Delsuc et al., 2006; Satoh et al., 2014) and are important for the evolutionary study of the ovarian follicle development including oocyte maturation and ovulation.
Shin Matsubara, Akira Shiraishi, Tomohiro Osugi, Tsuyoshi Kawada, Honoo Satake   +4 more
doaj   +1 more source

Value of the Ultrasound in the Study of Ovarian Reserve for Prediction of Oocyte Recovery [PDF]

Revista Brasileira de Ginecologia e Obstetrícia, 2016
Purpose To identify which methods used in the assessment of the ovarian reserve are exclusive or complementary to identify the best response to follicle development.
Meire Spressão, Antonio Hélio Oliani, Denise Cristina Mós Vaz Oliani   +2 more
doaj   +2 more sources

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source