Results 21 to 30 of about 57,391 (186)

Premature ovarian failure

open access: yesGynecological Endocrinology, 1999
Forty women with premature ovarian failure (POF) arising post-puberty (PPOF) during the reproductive lifespan, underwent karyotyping, pelvic ultrasonography, hormonal assays, hematochemical and immunological examinations. In 52.5%, PPOF was idiopathic, while in 45% the cause was immunological and in 2.5% chromosomal.
L, Falsetti   +3 more
openaire   +3 more sources

Construction Methods and Comparative Research Progress of Premature Ovarian Failure Animal Models

open access: yesShiyan dongwu yu bijiao yixue, 2021
Currently, the factors associated with premature ovarian failure animal models mainly include iatrogenic, immune, genetic, metabolic, and environmental factors. The animal models constructed based on these factors have their own characteristics. Here the
LI Hongxuan   +5 more
doaj   +1 more source

Molecular cytogenetic analysis of Xq critical regions in premature ovarian failure. [PDF]

open access: yes, 2013
BACKGROUND: One of the frequent reasons for unsuccessful conception is premature ovarian failure/primary ovarian insufficiency (POF/POI) that is defined as the loss of functional follicles below the age of 40 years.
Beke Artúr   +7 more
core   +2 more sources

Relationship between Serum Estrogen, Magnesium and Body Mass Index in premature Ovarian Failure Women in Tikrit City/ Iraq . [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2014
This study was conducted to evaluate serum estrogen, magnesium level and body mass index of 30 women with premature ovarian failure and 30 women as control group attended to emergency department/ Tikrit teaching hospital in Tikrit City Their ages ranged ...
Madlen Q. Abass, Emad H. Abdulla
doaj   +1 more source

Regulation of reproduction via tight control of gonadotropin hormone levels. [PDF]

open access: yes, 2018
Mammalian reproduction is controlled by the hypothalamic-pituitary-gonadal axis. GnRH from the hypothalamus regulates synthesis and secretion of gonadotropins, LH and FSH, which then control steroidogenesis and gametogenesis. In females, serum LH and FSH
Coss, Djurdjica
core   +1 more source

Fertility preservation in gynaecologic cancers [PDF]

open access: yes, 2018
Due to substantial improvement in the diagnosis and treatment of gynaecologic cancers, a better understanding of patient care needs to be revised. We reviewed the literature related to fertility preservation strategies in gynaecological cancer and ...
De Felice, Francesca   +9 more
core   +1 more source

Premature ovarian failure in a woman with a balanced 15;21 translocation: a case report

open access: yesJournal of Medical Case Reports, 2011
Introduction A case of premature ovarian failure with concomitant findings of Robertsonian translocation between 15 and 21 chromosomes is reported here.
Asgari Zahra   +3 more
doaj   +1 more source

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

open access: yes, 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   +28 more
core   +3 more sources

Current views on the molecular mechanisms of the initial stages of folliculogenesis [PDF]

open access: yesГинекология, 2020
The ovary is a unique structure of the female body, which simultaneously presents various morphohistological units-from primordial to dominant follicles. Over the past decades, scientists have focused on studying the mechanisms of folliculogenesis at the
Larisa A. Marchenko   +2 more
doaj   +1 more source

Roles of binding elements, FOXL2 domains, and interactions with cJUN and SMADs in regulation of FSHβ. [PDF]

open access: yes, 2014
We previously identified FOXL2 as a critical component in FSHβ gene transcription. Here, we show that mice deficient in FOXL2 have lower levels of gonadotropin gene expression and fewer LH- and FSH-containing cells, but the same level of other pituitary ...
Barakat, Nermeen H   +7 more
core   +1 more source

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