Pre-ovulatory temperature gradients within mammalian ovaries: a review
نویسندگان
چکیده
منابع مشابه
Luteal phase progesterone excretion in ovulatory women with polycystic ovaries.
BACKGROUND Various studies have reported a prevalence of polycystic ovaries (PCO) of approximately 20% in the 'normal' population. Our aim was to investigate the frequency of ovulation and pattern of luteal phase progesterone secretion in a group of women with PCO who reported regular cycles and in whom ovulation had been established on the basis of previous investigations. METHODS Subjects c...
متن کاملEndocrine abnormalities in ovulatory women with polycystic ovaries on ultrasound.
Polycystic-appearing ovaries (PAO) on ultrasound have been described in a variety of endocrinopathies and also occur in ovulatory women. By some investigators this is merely referred to as 'PCO' (polycystic ovaries). Although there is controversy in this regard, we do not consider women with PAO/PCO who have no known endocrine disturbance to have polycystic ovary syndrome (PCOS) and therefore p...
متن کاملMethods of separation and in-vitro culture of pre-antral follicles from mammalian ovaries.
A variety of procedures to isolate intact pre-antral follicles have been developed in our laboratories based on different concentrations of collagenase and DNase in a simple salt solution containing glucose as an energy substrate. The enzyme mixture effectively separates follicles of different sizes derived from ovaries of hamster, mouse, rat, pig and human. While no damage of the basal lamina ...
متن کاملAbsorption of ultrasound by mammalian ovaries.
The transient thermoelectric method was employed to determine the ultrasonic absorption coefficient of excised bovine, canine, feline, murine, ovine, and porcine ovaries at 1 MHz. The dynamics of the organ yields significant variations with physiological stage and structure. Values ranged from 0.017 cm-1 for the follicle to 0.050 cm-1 for the corpus luteum, largely reflecting macromolecular con...
متن کاملStem cells in aged mammalian ovaries
ovary undergoes several changes after the menopause. The main characteristics of the post-menopausal ovary are a loss of follicles and several changes as a consequence of apoptotic processes. Signs of atrophy and fibrosis are evident. Primordial follicles are usually absent in postmenopause, whereas corpora atretica, hemorrhagica and albicantia, scar tissue, and simple follicular cysts are comm...
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ژورنال
عنوان ژورنال: Journal of Animal Physiology and Animal Nutrition
سال: 2005
ISSN: 0931-2439,1439-0396
DOI: 10.1111/j.1439-0396.2005.00509.x