Results 31 to 40 of about 60,280 (202)

Luteinizing hormone and its dilemma in ovulation induction

Journal of Human Reproductive Sciences, 2011
Concept of a ′therapeutic window′ of luteinizing hormone (LH) for successful conception in assisted reproductive technology and ovulation induction has been reviewed in this literature. The separate but complementary roles of follicle stimulating hormone
Pratap Kumar, Sameer Farouk Sait
doaj   +1 more source

Species-specific differences in follicular antral sizes result from diffusion-based limitations on the thickness of the granulosa cell layer

, 2013
The size of mature oocytes is similar across mammalian species, yet the size of ovarian follicles increases with species size, with some ovarian follicles reaching diameters more than 1000-fold the size of the enclosed oocyte.
Bächler, M., De Geyter, Ch., Iber, D., Menshykau, D.   +3 more
core   +1 more source

Dissociation between Cervical Mucus and Urinary Hormones during the Postpartum Return of Fertility in Breastfeeding Women [PDF]

, 2018
Identifying the return of fertility with cervical mucus observations is challenging during the postpartum period. Use of urinary measurements of estrogen and progesterone can assist in understanding the return to fertility during this period.
Blackwell, Len, Bouchard, Thomas, Brown, Simon, Fehring, Richard, Parenteau-Carreau, Suzanne   +4 more
core   +2 more sources

Changes in the ovary and the peripheral concentrations of sex hormones after the aspiration of follicular fluid from the spontaneous follicular cysts of dairy cows

The Journal of Reproduction and Development, 2021
The aim of the present study was to clarify the ovarian and hormonal dynamics after the aspiration of follicular fluid in cows with follicular cysts. Follicular fluid was aspirated from the follicular cysts and follicles that were fated to become cystic ...
Kazuhiro KENGAKU, Tomomi TANAKA, Hideo KAMOMAE   +2 more
doaj   +1 more source

Molecular investigation of hormonal alterations in Oreochromis niloticus as a bio-marker for long-term exposure to zinc oxide nanoparticles

Journal of Taibah University for Science, 2021
This study aimed to investigate the potential effects of long-term zinc oxide nanoparticles’ (Zn-ONPs) exposure to the hormonal profile of O. niloticus and their application as a bio-marker for fresh water pollution by Zn-ONPs. Two hundred-forty female O.
Ali Alkaladi, Mohamed Afifi, Haytham Ali, Michel Couderchet   +3 more
doaj   +1 more source

Recent advances in managing differentiated thyroid cancer [PDF]

, 2018
The main clinical challenge in the management of thyroid cancer is to avoid over-treatment and over-diagnosis in patients with lower-risk disease while promptly identifying those patients with more advanced or high-risk disease requiring aggressive ...
Durante, Cosimo, Filetti, Sebastiano, Grani, Giorgio, Lamartina, Livia   +3 more
core   +2 more sources

Activity of 3β-hydroxysteroid dehydrogenase associated with progesterone production in bovine granulosa cells cultured under different concentrations of serum, insulin-like growth factor I, and gonadotropin [PDF]

, 2014
Three-β-hydroxysteroid dehydrogenase (3β-HSD) is the enzyme responsible for progesterone production. This study aimed to determine whether 3β-HSD activity can be shown to reflect progesterone production by granulosa cells cultured under different serum
Mihm Carmichael, Monika, Şimsek, Özkan
core   +1 more source

Effect of different culture systems and 3, 5, 3'-triiodothyronine/follicle-stimulating hormone on preantral follicle development in mice. [PDF]

PLoS ONE, 2013
The mechanical method to isolate preantral follicle has been reported for many years. However, the culture systems in vitro are still unstable. The aim of this study was to analyze the effect of the culture system of mice preantral follicles on the ...
Cheng Zhang, Xiaoxia Wang, Zhengpin Wang, Wanbao Niu, Baochang Zhu, Guoliang Xia   +5 more
doaj   +1 more source

The Effects of the Follicle-Stimulating Hormone on Human Follicular Fluid-Derived Stromal Cells

International Journal of Molecular Sciences, 2023
The prevalence of infertility is getting higher over the years. The increasing age of first-time parents, although economically more desirable, can cause various biological problems from low natural conception rate to poor pregnancy outcomes. The growing demand for assisted reproductive technology procedures worldwide draws medical specialists’ and ...
Giedrė Skliutė, Brigita Vaigauskaitė-Mažeikienė, Algirdas Kaupinis, Mindaugas Valius, Edita Kazėnaitė, Rūta Navakauskienė   +5 more
openaire   +3 more sources

Rodent Models of Polycystic Ovary Syndrome [PDF]

, 2013
Rodents are clearly valuable models for assessing disruption of fertility. The effects of different steroid treatments at different stages of reproductive life through from fetal to adult have been assessed for effects on fertility, ovarian morphology ...
Duncan, Colin, McNeilly, Alan S
core   +1 more source