Results 11 to 20 of about 69,338 (308)

Short oestrous cycles in sheep during anoestrus involve defects in progesterone biosynthesis and luteal neovascularisation [PDF]

, 2014
Anoestrous ewes can be induced to ovulate by the socio-sexual, 'ram effect'. However, in some ewes the induced ovulation is followed by an abnormally short luteal phase causing a so called, "short cycle".
Acritopoulou, C Fabre Nys, Cahill, Chanvallon, Chemineau, Chemineau, Dickson, Dickson, H M Brown, Hazzard, Hinney, J Cognié, Koos, Land, Lassoued, Livak, Martin, Martin, Pearce, Pearce, Pritts, R J Scaramuzzi, Richards, Ungerfeld, Weems, Weems, Wulff, Wulff, Wulff   +28 more
core   +3 more sources

Investigating Ovulation Induction Outcomes in Patients with Decreased Ovarian Reserve Treated with Double Stimulation during The Follicular and Luteal Phases Compared to The Conventional Antagonist Cycle: A Randomized Clinical Trial [PDF]

International Journal of Fertility and Sterility
Background: It is difficult to obtain healthy oocytes in poor ovarian responders with conventional treatment methods.Thus, the need to investigate new methods is essential.
Fatemeh Ghahghayi, Abolfazl Payandeh, Aida Najafian, Marzieh Ghasemi, Ayob Jabari Jabari   +4 more
doaj   +1 more source

Estrous cycle-dependent changes of Fas expression in the bovine corpus luteum: influence of keratin 8/18 intermediate filaments and cytokines [PDF]

, 2012
Background Fas expression and Fas-induced apoptosis are mechanisms attributed to the selective destruction of cells of the corpus luteum (CL) during luteal regression.
Birt, Alyssa, Duncan, Alice, Forcina, Jennifer, Townson, David H.   +3 more
core   +2 more sources

GnRH agonist as a luteal support in IVF cycle: mini-review—is there a role?

Middle East Fertility Society Journal, 2022
Background It has been established that assisted reproductive technology (ART) cycles are usually accompanied by a defective luteal phase, and that luteal phase support (LPS) is mandatory to improve reproductive outcomes.
Hasan Maghraby, Amr S. Abdelbadie, Ashraf Aboali, Aboubakr Elnashar   +3 more
doaj   +1 more source

Premenopausal endogenous oestrogen levels and breast cancer risk: a meta-analysis. [PDF]

, 2011
BACKGROUND: Many of the established risk factors for breast cancer implicate circulating hormone levels in the aetiology of the disease. Increased levels of postmenopausal endogenous oestradiol (E2) have been found to increase the risk of breast cancer ...
AH Eliassen, C Frost, CR Rosenberg, D J Bratton, DJ Hand, DK Wysowski, EW Steyerberg, G Chene, HV Thomas, J Russo, JN Matthews, JP Costantino, JTCB Herjan, K Tanabe, K Walker, K Walker, KJ Helzlsouer, LJ Martin, M Kabuto, MC Pike, MH Gail, N Vasiljevic, R DerSimonian, R Kaaks, RC Travis, RF Galbraith, S Greenland, SA Missmer, The Endogenous Hormones and Breast cancer Collaborative Group, TJ Key   +29 more
core   +1 more source

Luteal blood flow as a predictive factor for methotrexate treatment outcomes in women with unruptured tubal pregnancy

BMC Pregnancy and Childbirth, 2020
Background Blood flow in the corpus luteum is associated with luteal function. However, the impact of luteal blood flow on methotrexate (MTX) treatment in women with unruptured tubal pregnancy has not been reported.
Li Wang, Meili Pei, Ting Yang, Juan Zhao, Xiaofeng Yang   +4 more
doaj   +1 more source

Morfometría macroscópica del ovario y cuerpo lúteo de yeguas criollas de Colombia

Revista de Medicina Veterinaria, 2013
El objetivo del presente estudio era realizar una descripción de parámetros morfométricos del ovario y cuerpo lúteo (CL) de yeguas criollas de Colombia. Se utilizaron cincuenta ovarios provenientes de yeguas adultas.
Erika Brigith Quesada Navarro, Gustavo Adolfo Martínez Núñez, Miguel Ángel Bedoya Ríos, Ángela María Gonella-Diaza   +3 more
doaj   +1 more source

Deciphering the functional role of EGR1 in Prostaglandin F2 alpha induced luteal regression applying CRISPR in corpus luteum of buffalo

Biological Research, 2021
Background PGF2α is essential for the induction of the corpus luteum regression which in turn reduces progesterone production. Early growth response (EGR) proteins are Cys2-His2-type zinc-finger transcription factor that are strongly linked to cellular ...
Meeti Punetha, Sai Kumar, Avishek Paul, Bosco Jose, Jaya Bharati, Arvind Sonwane, Jonathan A. Green, Kristin Whitworth, Mihir Sarkar   +8 more
doaj   +1 more source

Prolactin is a strong candidate for the regulation of luteal steroidogenesis in vizcachas (Lagostomus maximus) [PDF]

, 2018
Prolactin (PRL) is essential for the maintenance of the corpora lutea and the production of progesterone (P4) during gestation of mice and rats, which makes it a key factor for their successful reproduction.
Charif, Santiago Elías, Corso, María Clara, Cortasa, Santiago Andrés, Di Giorgio, Noelia Paula, Dorfman, Verónica Berta, Halperin, Julia, Inserra, Pablo Ignacio Felipe, Lux Lantos, V., Proietto, Sofia, Schmidt, Alan Raul, Vitullo, Alfredo Daniel   +10 more
core   +1 more source

Hormonal Predictors of Abnormal Luteal Phases in Normally Cycling Women

Frontiers in Public Health, 2018
Objective: Explore potential relationships between preovulatory, periovulatory, and luteal-phase characteristics in normally cycling women.Design: Observational study.Setting: Eight European natural family planning clinics.Patient(s): Ninety-nine women ...
Saman H. Abdulla, Saman H. Abdulla, Saman H. Abdulla, Saman H. Abdulla, Thomas P. Bouchard, Rene A. Leiva, Rene A. Leiva, Phil Boyle, Jean Iwaz, Jean Iwaz, Jean Iwaz, Jean Iwaz, René Ecochard, René Ecochard, René Ecochard, René Ecochard   +15 more
doaj   +1 more source