(1) It is suggested that (a) LRF may have a trophic action upon the anterior pituitary gland during the pre-puberal phase of life, and that (b) the first formation of LRF coincides with the development of the primary plexus of the pituitary portal system.
(2) The genital tracts of 968 slaughtered bulls (46% of which were young post-puberal animals) were examined for defects of a congenital or developmental nature.
(3) It is stated that incubation of plasma membranes by IgG fraction isolated from antimembrane testicular serum (IgG-ATCSm) in a large dose (43 g of protein G per 125 g of protein of membrane fraction) caused statistically reliable inhibition of Na+, K(+)-ATPase activity in the membranes of testicle cells of puberal and old rats.
(4) It was shown that the ER level in hepatocytes was far lower than in uterine cells and drastically increased during puberation and after ovariectomy.
(5) This study assessed sex differences in spontaneous wheel running and maze performance in relation to puberal status in rats.
(6) Investigation of the stability of mice testicles in different age groups (juvenile, puberal and old) has shown that the 1st and the 3d groups are the most sensitive ones.
(7) One patient got his psychic traumatization mainly in early childhood where as the other suffered from a more puberal conflict.
(8) In order to examine the relation between breast development and hormone levels, serum levels of hormones including LH, FSH, PRL, progesterone, 17 alpha OH-progesterone, estradiol (E2), pregnenolone, pregnenolone-sulfate, 17 alpha OH-pregnenolone, cortisol, dehydroepiandrosterone (DHA), dehydroepiandrosterone-sulfate (DHA-S), testosterone and delta 4-androstenedione were measured by RIA in 162 puberal girls aged 9 to 17 years.
(9) Grafts and injections of cellular extracts from thymus and spleen of guinea pigs, were carried out in puberal and impuberal female rats.
(10) A modification in the neurological symptomatology was noted during his puberal phase: fits of convulsions changed into daily crises of mind-failures.
(11) The relationship of changes in luteal function from the puberal through the third estrous cycle and pregnancy is not clear.
(12) 76 patients (prepuberal, puberal and adults) who had undergone surgery for monolateral (35) or bilateral (41) cryptorchidism in childhood were studied.
(13) They furthermore suggest that the mediocortical amygdala is not involved in possible extra-hypothalamic control of the puberal desensitization process.
(14) The clinical evaluation and the treatment of 46 patients that presented with puberal gynecomastia in a period of ten years to an Adolescent Medicine Department were assessed.
(15) In addition, we refer to the typical problems of this age group, the psychic and somatic variants of the norm; special regard is paid to puberal gynecomastia and obesity.
(16) During the puberal evolution the HD male rats showed elevation in plasma testosterone levels, an increase in the testicular response to hCG and also in the number of testicular binding sites to LH and FSH at 38-43 days (before the onset of puberty) and to prolactin (after 60 days).
(17) In testes from post-puberal men GRH immunoreactivity was localized in the Leydig cells; cells of the germinal epithelium did not stain.
(18) Whether oostegites develop in puberal females whose ovaries have been removed depends upon the degree of maturation of the ovaries at the time of removal.
(19) Electrophoretical and immuno-electrophoretical analysis of plasma, serum and some plasmatic extracts of Macropipus puber (L).
(20) Using the puberal rat and the PMS-treated rat as animal systems, ovarian events associated with follicular and luteal development have been characterized by measuring gonadotrophic hormone (LH, FSH and prolactin) and progesterone concentrations in peripheral serum; and selected enzymic (NAD-kinase:NAD-K and glucose-6-phosphate dehydrogenase: G6PD) activities and nucleotide (NAD, NADH, NADP, NADPH, ATP) concentrations in ovarian tissue.
Puberty
Definition:
(n.) The earliest age at which persons are capable of begetting or bearing children, usually considered, in temperate climates, to be about fourteen years in males and twelve in females.
(n.) The period when a plant first bears flowers.
Example Sentences:
(1) These results do not support the view that in the rat pheromones from adult males enhance puberty in females, contrary to what is known to happen in the mouse.
(2) In contrast, idiopathic GH deficient girls have an onset of puberty and PHV nearer to a normal chronological age and at an early bone age.
(3) We report the treatment of 44 boys with constitutional delay of growth and puberty (CDGP) at a mean chronological age of 14.3 years (range, 12.4-17.1) and bone age of 12.1 years (range, 9.1-15.0).
(4) Four patients entered puberty during the first year of treatment.
(5) In girls and boys, the mean concentration of both gonadotropins increased with advancing puberty.
(6) Age at puberty (onset of cyclic progesterone concentrations) was greatest in heifers fed Diet 1 and lowest in heifers fed Diet 5.
(7) A 17-year-old boy who had been treated for insulin-dependent diabetes since age 2, and for coeliac disease since age 6, presented a major growth retardation (-6 SD), a delayed puberty and a hepatomegaly with excessive glycogen storage (Mauriac's syndrome).
(8) Adrenal androgens appear to be the major determinants of sebaceous gland activity during the prepubertal period and to be additive to another hormone or hormones during puberty.
(9) An investigation of the tissue distribution of CMB-2 showed that the puberty, CMB-2 is secreted into the rete testis and accumulates in the epididymis in high concentration.
(10) Seventeen of them showed a constitutional delay in growth and puberty, twenty-three suffered from growth-hormone deficiency (GHD) and eight had a suspected GHD as a result of pharmacological tests.
(11) This paper describes a case with symptomless enlarged submandibular glands, the bioptic findings which were suggesting the diagnosis of sialadenosis, the verification of the underlying disorder by child psychiatry, and the recuperation of the boy during puberty.
(12) Most of what is understood about precocious puberty in boys comes from boys with precocious puberty secondary to poorly controlled CAH.
(13) These and other data suggest that the sensitivity of the hypothalamic-pituitary "gonadostat" decreases at the onset of puberty.
(14) One possible explanation is that the bacteria associated with periodontal diseases cannot become established in great numbers prior to puberty.
(15) However, following puberty (i.e., by 60 days of age), the response in male rats was significantly greater than that observed in female rats.
(16) The development of signs of puberty and a growth spurt appearing at this late age clearly show the potential for maturation and growth once malnutrition is corrected.
(17) The progress of 108 children who were identified by the vision screening programme in school as having defective vision (excluding those with puberty onset myopia) was reviewed.
(18) Inhibin levels were high in prepubertal lambs (approximately 375 pM), but these levels were not sustained near the time of puberty (approximately 180 pM).
(19) Breast development is usually the first event of puberty and menarche virtually the last.
(20) It is hypothesized here that puberty in the rat is the consequence of the appearance of free, and therefore physiologically active, estrogen in the circulation.