Results 261 to 270 of about 55,852 (309)
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Theriogenology, 1997
The aim of our study was to characterize follicular recruitment and growth in response to the repeated removal of follicles. All tertiary follicles (> 2 mm of diameter) in the ovaries of 10 non-lactating Holstein Friesian cows were punctured at midcycle (Day 0) by means of an ultrasound-guided needle. Puncture sessions were scheduled twice weekly at 3-
BONI, Raffaele +4 more
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The aim of our study was to characterize follicular recruitment and growth in response to the repeated removal of follicles. All tertiary follicles (> 2 mm of diameter) in the ovaries of 10 non-lactating Holstein Friesian cows were punctured at midcycle (Day 0) by means of an ultrasound-guided needle. Puncture sessions were scheduled twice weekly at 3-
BONI, Raffaele +4 more
openaire +3 more sources
Follicular and hormonal dynamics during the first follicular wave in heifers
Theriogenology, 1999A few days after the first follicular wave emerges as 4-mm follicles, follicular deviation occurs wherein 1 follicle of the wave continues to grow (dominant follicle) while the others regress. The objectives of this study were to characterize follicle growth and associated changes in systemic concentrations of gonadotropins and estradiol at 8-h ...
L J, Kulick +3 more
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Follicular Dynamics and Apoptosis Following Unilateral Oophorectomy
Systems Biology in Reproductive Medicine, 2010Ovarian physiology has been based on the assumption that the mammalian ovary has a constant germ cell pool. According to this accepted doctrine primordial follicles, which are limited in number, are depleted through ovulation or atresia. Therefore, the primary goal of this study was to examine the follicle dynamics and morphologic apoptotic changes ...
Ulukus, Cagnur +3 more
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Follicular dynamics in the polycystic ovary syndrome
Molecular and Cellular Endocrinology, 2000Anovulation in women with polycystic ovary syndrome (PCOS) is characterised by arrested growth of antral follicles. A relative lack of FSH may contribute to the persistence of anovulation but is unlikely, by itself, to be a major cause of it. Granulosa cells from anovulatory women with polycystic ovaries hypersecrete oestradiol, compared with size ...
S, Franks, H, Mason, D, Willis
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Ovarian follicular dynamics in Caspian mares
Journal of Equine Veterinary Science, 2002Abstract The characteristics of the major follicular waves (primary and secondary) throughout estrous cycle were studied in 7 healthy Caspian mares (age, 4-15 years; weight, 198.6 ± 0.9 kg) during the breeding season. Ovarian follicular dynamics were monitored by using an ultrasound scanner equipped with a 5-MHz, B-mode, linear-array, rectal ...
A. Shirazi +3 more
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Ovarian follicular dynamics in water buffalo
Theriogenology, 1996Abstract The pattern of growth and regression of ovarian follicles was characterized during 7 complete estrous cycles in 5 water buffalo by daily ultrasonographic examinations of the ovaries. Follicles ≥ 4 mm were measured and their relative locations within the ovary were determined to follow the sequential development of each individual follicle ...
M. Taneja, A. Ali, G. Singh
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Follicular dynamics during the ovulatory season in goats
Theriogenology, 1994Growth and regression of ovarian follicles>or=3 mm were studied by transrectal ultrasonography for 4 interovulatory intervals in each of 5 Saanen goats. The observed number of growing identified 4-mm follicles per day differed (Por=6 mm followed a pattern of significant peaks on Days 0 (ovulation), 4,8 and 14.
O J, Ginther, K, Kot
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An Analysis of Follicular Punches, Mechanics, and Dynamics in Follicular Unit Extraction
Facial Plastic Surgery Clinics of North America, 2013Success in follicular unit extraction requires an understanding of forces, fluid dynamics, instrumentation, and individual patient variation. Sharp punches require a lower axial and tangential force to dissect follicular groups. The angle of hair emergence and the size of a punch influence the wound size and the depth of an incision.
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Progress in understanding ovarian follicular dynamics in cattle
Theriogenology, 2008The study of follicular dynamics began in the mid-20th century, but progress has been particularly rapid in the last two decades through the use of tools that have enabled serial, non-invasive examination. A brief overview of early oogenesis and folliculogenesis is provided as a backdrop to the evolution of our understanding of follicular dynamics ...
G P, Adams +3 more
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Factors that affect ovarian follicular dynamics in cattle
Journal of Animal Science, 1992Studies of ovarian follicular dynamics in cattle may lead to methods for improving fertility, for synchronizing estrus with more precision, and for enhancing superovulatory responses. Within an estrous cycle, two or three large (> 10 mm) follicles develop during consecutive waves of follicular growth.
M C, Lucy +4 more
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