Results 101 to 110 of about 687,311 (290)

Development of a Zebrafish Embryo‐Based Test System for Thyroid Hormone System Disruption: 3Rs in Ecotoxicological Research

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract There is increasing concern regarding pollutants disrupting the vertebrate thyroid hormone (TH) system, which is crucial for development. Thus, identification of TH system–disrupting chemicals (THSDCs) is an important requirement in the Organisation for Economic Co‐operation and Development (OECD) testing framework.
Lisa Gölz   +9 more
wiley   +1 more source

Successful pregnancy and live birth from a hypogonadotropic hypogonadism woman with low serum estradiol concentrations despite numerous oocyte maturations: a case report

open access: yesBMC Pregnancy and Childbirth, 2017
Background The increase in serum estradiol (E2) concentrations during the follicular phase becomes the index of oocyte maturation in vivo. When ovarian stimulation is performed to hypogonadotropic hypogonadism (HH) patients with only follicle ...
Kaori Matsumoto   +2 more
doaj   +1 more source

Protective Effects of Fenugreek and Stevia Extracts on Dexamethasone‐Induced Testicular Damage in a Rat Model

open access: yesFood Safety and Health, EarlyView.
Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad   +3 more
wiley   +1 more source

Evaluating sex hormone levels in reproductive age women with multiple sclerosis and their relationship with disease severity

open access: yesJournal of Research in Medical Sciences, 2012
Background : Sex-related differences in the severity of multiple sclerosis (MS) could be influenced by the sex hormones. Materials and Methods: This cohort (historical) study evaluated the sex hormone levels during menstrual cycle and their correlation ...
Azam Foroughipour   +3 more
doaj  

Influence of Spirulina platensis exudates on the endocrine and nervous systems of a mammalian model

open access: yesAsian Pacific Journal of Tropical Biomedicine, 2015
Objective: To investigate the effect of intra-peritoneal injection of purified exudates of axenic Spirulina platensis on the mammalian endocrine and nervous systems.
Samah M.M. Fathy, Ashraf M.M. Essa
doaj   +1 more source

Activin B is produced early in antral follicular development and suppresses thecal androgen production [PDF]

open access: yes, 2012
Little is known about the role of activin B during folliculogenesis. This study investigated the expression levels of activin/inhibin subunits (βA, βB, and α), steroid enzyme, and gonadotrophin receptors in theca (TC) and granulosa cells (GC) by QPCR and
Young, J M   +5 more
core   +1 more source

The mitochondrial DNA copy number and ovary‐related reproductive disorders: A bidirectional two‐sample Mendelian randomization study

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.
Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng   +4 more
wiley   +1 more source

Impact of antral follicular count on ovulation and pregnancy rate in sub infertile women with polycystic ovarian syndrome undergoing ovulation induction by clomiphene citrate and gonadotropins

open access: yesGinekologia Polska
Objectives:To show the relationship between antral follicular count (AFC) levels and ovulation and pregnancy rates in sub-fertile women with polycystic ovarian syndrome who received clomiphene citrate and gonadotropin-based ovulation induction therapy ...
Ala'a Shallal Farhan
doaj   +1 more source

Subclinical cardiac alterations and cardiometabolic profile in adolescents with newly diagnosed polycystic ovary syndrome: A cross‐sectional comparative echocardiographic study

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective While cardiometabolic comorbidities have been well established in adults with polycystic ovary syndrome (PCOS), it remains unclear whether the early signs of cardiovascular morbidity emerge during adolescence. This study aimed to investigate whether metabolic and cardiovascular alterations begin in adolescents with PCOS.
Demet Aygün Ari   +8 more
wiley   +1 more source

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