نتایج جستجو برای: atretic follicles

تعداد نتایج: 11103  

Journal: :journal of reproduction and infertility 0

background: the present study was conducted in order to evaluate the effects of bilateral uterine artery ligation (bual) on the ovarian follicular fate, and alterations in carbohydrate, lipid, lipase and serum levels of f9sh, lh, prolactin, estrogen and progesterone. methods: twenty-four mature female rabbits divided into two test and control-sham groups. the animals underwent ovariohystrectomy...

2011
Stanley E. Trauth STANLEY E. TRAUTH

Macroscopic and histological analyses of the ovarian cycle of Crotaphytus col/aris were conducted during 1971 and 1972. The reproductive season extends from April to late June; examination of ovarian h istosections revealed two distinct sets of corpora lutea, indicating that two clutches of eggs are produced per season. The average clutch size was 6.4. Corpora lutea regress into permanent ovari...

R. Sadrkhanlou S. Hasanzadeh V. Najati,

For the present study, and follow-up of histochemical changes in estradiol valerate-induced polycysticovary syndrome (PCOS), 48 virgin 90-day-old female rats were used. The rats were divided into thetreatment and control groups. For each rat of the treatment group, 4 mg estradiol valerate was injectedthrough intramuscular route for the induction of PCOS. The control group was taken the same amo...

Journal: :iranian journal of veterinary research 2006
v. najati r. sadrkhanlou s. hasanzadeh

for the present study, and follow-up of histochemical changes in estradiol valerate-induced polycysticovary syndrome (pcos), 48 virgin 90-day-old female rats were used. the rats were divided into thetreatment and control groups. for each rat of the treatment group, 4 mg estradiol valerate was injectedthrough intramuscular route for the induction of pcos. the control group was taken the same amo...

Journal: :Journal of reproduction and fertility 1980
R D Peppler J Canale

Mature, non-pregnant, female armadillos (Dasypus novemcinctus) were killed throughout the year (3-6/month, N = 54) and both ovaries were examined for follicular development. All normal and atretic follicles > 358 micrometers were counte. Total number of normal follicles remained constant from January to June but decreased by 50% in the remaining months except in October and November. Follicles ...

2012
Kaveh Akhtari Mazdak Razi Hassan Malekinejad

BACKGROUND The present study was conducted in order to evaluate the effects of bilateral uterine artery ligation (BUAL) on the ovarian follicular fate, and alterations in carbohydrate, lipid, lipase and serum levels of F9SH, LH, prolactin, estrogen and progesterone. METHODS Twenty-four mature female rabbits divided into two test and control-sham groups. The animals underwent ovariohystrectomy...

2012
Fei Lin Ran Li Zeng xiang Pan Bo Zhou De bing Yu Xu guang Wang Xue shan Ma Jing Han Ming Shen Hong lin Liu

More than 99% of ovarian follicles undergo atresia in mammals, but the mechanism of follicular atresia remains to be elucidated. In this study, we explored microRNA (miRNA) regulation of follicular atresia in porcine ovary. A miRNA expression profile was constructed for healthy, early atretic, and progressively atretic follicles, and the differentially expressed miRNAs were selected and analyze...

Journal: :international journal of reproductive biomedicine 0
mazdak razi kaveh akhtari ali reza najafpour keyvan abdi rasoul shahrooz simineh shahmohamadloo

background: nowadays it is proofed that the uterine artery plays essential role in follicular growth and/or post parturition hemorrhagic. objective: this study was conducted to evaluate the effect of bilateral uterine artery ligation (bual) on follicular fate and the probable histochemical changes of the carbohydrate and lipids in the ovaries of rabbits. materials and methods: 24 mature female ...

Journal: :Reproduction 2006
Inger B Carlsson Mika P E Laitinen Jennifer E Scott Henna Louhio Louiza Velentzis Timo Tuuri Johanna Aaltonen Olli Ritvos Robert M L Winston Outi Hovatta

The receptor tyrosine c-Kit and its cognate ligand, c-Kit ligand (KL, stem cell factor, SCF), are involved in ovarian follicular development in several animal species. We studied the expression of KL and c-Kit using in situ hybridization and immunohistochemistry in donated human ovarian cortical tissue. The KL transcripts were expressed in granulosa cells of primary follicles, whereas the expre...

Journal: :Reproduction, nutrition, development 1989
B Lefèvre A Gougeon F Nomé J Testart

Histological examination of gonadotrophin stimulated Macaca fascicularis ovaries removed at mid-follicular phase showed that germinal vesicles (GV) could exhibit different configurations in follicles greater than 1000 microns in diameter. We describe 3 types of nuclear organization called GV1 (dispersed and filamentous chromatin), GV2 (clumped and filamentous chromatin) and GV3 (perinucleolar c...

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