cAMP-dependent protein kinase was examined in mitochondria and cytosol prepared from different-sized antral follicles and corpora lutea of porcine ovaries. In all ovarian tissues examined except small follicles, protein kinase-specific activity was significantly higher in mitochondria than in cytosol, with the highest to lowest activities being found in medium (4-6 mm) follicles, large (7-12 mm...

K N O W L E D G E of the normal quantitative cyclic changes in the ovarian follicular system would be a meaningful aid in assessing the influence of exogenous agents on the ovary. Previous reports on cyclic changes in bovine vesicular follicles (Hammond, 1927: Cole, 1930; McNutt , 1927: Cupps et al., 19,59; Hansel, 1959) were based on gross counts, or study of the largest follicle in isolated s...

The dissolving microneedle loading vasodilatorTOP-M119 (M119) penetrates the scalp and releases drug to blood vessels. TheM119 induces vasodilation angiogenesis, it causes vascularization around hair follicles supplying oxygen nutrients. This mode of action M119 finally affects alopecia follicles' conversion anagen growth. is reported by Hyungil Jung co-workers in article number 2200052.

We examined the echotexture in ultrasonographic images of the wall of dominant ovulatory follicles in women during natural menstrual cycles and dominant anovulatory follicles which developed in women using oral contraceptives (OC). Ovarian follicles in women are fluid-filled structures in the ovary that contain oocytes (eggs). Dominant follicles are physiologically selected for preferential dev...

Comparisons were made between diameters of 54 bovine follicles greater than 5.9 mm from 32 pairs of ovaries measured on the ovarian surface and diameters of the same follicles subsequently dissected from the ovaries. Seventy-eight percent of follicles measured on the ovarian surface were within 1.9 mm of the size measured after dissection. The remaining 22% of follicles measured on the surface ...

This study was undertaken to determine changes in follicular populations on ovaries of dairy cows during three stages of the estrous cycle and their steroidogenic capacity in vitro. Numbers of small (2.0 to 5.0 mm), intermediate (5.1 to 10 mm) and large (greater than 10 mm) antral follicles on ovaries of multiparous cows and heifers (n = 31) in the early luteal (d 4), mid-luteal (d 12) and foll...

BACKGROUND The objective of this study was to determine whether follicles grown within human ovarian cortical strip culture for 6 days in serum-free medium could be isolated at the secondary stage of pre-antral development and grown in vitro to the late pre-antral/early antral stage during a 4 day culture period. METHODS Ovarian cortical biopsies were obtained from six women aged 26-40 years,...

The role of exogenous leptin in the follicular steroidogenesis in pigs has not been fully elucidated and available data are controversial. In the current study porcine follicles were recovered from ovaries during early, middle, and preovulatory stages of the follicular phase of the estrous cycle. Follicles were cultured in the presence of the recombinant ovine leptin (oLEP) with or without LH (...

Because IGFBP inhibit IGF-stimulated cellular proliferation and differentiation, it is hypothesized that variations among IGFBP in individual follicles might contribute to the regulation of recruitment, selection, dominance, and turnover of ovarian follicles. Sources of IGFBP in fluid of bovine follicles are not well established; thus, objectives of this study were to determine levels of IGFBP ...

The concentrations of various components of follicular fluid were compared among three groups of follicles (small, <5 mm; medium: 5-10 mm; large, >10 mm) with a control that consisted of the components of umbilical serum using seven pregnant Antarctic minke whales. Follicular oocytes recovered from the follicles were also used for measurement of oocyte diameter after removing the cumulus cells....