(1) Intact rams exhibited GH secretory episodes of greater (P less than 0.01) amplitude than did castrated lambs.
(2) Positive feedback effects on serum gonadotrophins in castrates were observed following injection of certain doses of some steroids.
(3) In contrast, castration during pseudopregnancy did not abolish the secondary peaks.
(4) No specific labeling could be detected in the adrenocorticotrophs of adrenalectomized rats or gonadotrophs (castration cells) of castrated rats.
(5) In a final experiment, prostatic atrophy in castrate rats was not enhanced by either adrenalectomy or flutamide treatment.
(6) Castrated rams did not show this increase, with or without supplementary testosterone.
(7) Naloxone also prevented testosterone's negative feedback inhibition of serum LH in the castrated male rat.
(8) Moreover, the levels of these parameters were comparable in tumours whether implanted in non-castrated or gonadectomized animals.
(9) Castration of male rats results in a decrease in submandibular gland RSKG-7 mRNA, which can be restored to the normal level by treatment with thyroxine or testosterone.
(10) In vivo administration of anti-EGF antibody or anti-TGF-alpha antibody significantly reduced estrogen-induced labelling index in castrated mouse uterus.
(11) In castrates, the prostatic stroma became thickened, with a large increase in fibrous material between and surrounding each acinus, although smooth muscle cells retained their normal cytology.
(12) Median survival was significantly prolonged in primed animals 191 vs 40 days for untreated animals and 150 days for the nonprimed castration + chemotherapy animals (P less than 0.02).
(13) Adreno-cortical compensation of the concentration of the hormone did not occur in the post-castration period.
(14) Rat dorsal prostate epithelium was studied in intact adult animals, in animals castrated for three days and in rats after inhibition of prolactin secretion.
(15) The ability of melatonin to influence LH pulse frequency in entire and castrated rams indicated that an effect of melatonin on the hypothalamic pulse generator is independent of testicular steroids.
(16) The treatment with supraphysiological doses of the gonadotropin releasing hormone analogue Buserelin results in the suppression of serum testosterone to castration range with a probability of 95% after 28 days.
(17) To determine the effect of photoperiod on substance P, peptide containing neurons were counted in (1) enucleates (n = 6), (2) enucleated castrates treated with testosterone (n = 6), (3) castrates treated with testosterone (n = 4), and (4) intact controls (n = 6).
(18) In addition, there was a marginally significant (P less than 0.1) relationship between prolactin secretion in the castrate ram and the stage of testicular activity in the entire rams with elevated levels associated with regressed activity.
(19) In terms of total cellular receptor content, initial levels were higher in castrate animals, but rapidly fell to intact levels within an hour following estradiol injection.
(20) The effect of naloxone administration on the LH-RH secretion in hypophyseal portal blood and LH secretion in peripheral blood was studied in four short term castrated rams (between 2 to 4 days after castration).
Reproductive
Definition:
(a.) Tending, or pertaining, to reproduction; employed in reproduction.
Example Sentences:
(1) The availability and success of changes in reproductive technology should lead to a reappraisal of the indications for hysterectomy, especially in young women.
(2) The purpose of this paper is to discuss the potential for integrating surveillance techniques in reproductive epidemiology with geographic information system technology in order to identify populations at risk around hazardous waste sites.
(3) In this way they offer the doctor the chance of preventing genetic handicaps that cannot be obtained by natural reproduction, and that therefore should be used.
(4) The sensitivity , accuracy, and reproductibility of this method are described and discussed.
(5) Thus, inhibition of reproductive function of young males after EP action has been demonstrated.
(6) The La Parguera facility was established in part to contrast the social behavior of free-ranging groups with that in enclosures, as well as to compare the seasonal events linked to reproduction with those at Cayo Santiago.
(7) Thus, the carotid pulse tracing provides an accurate reproduction of the morphology of the pressure tracing recorded from the ascending aorta, and when calibrated by peripheral blood pressure measurement, it can be used to calculate LV pressure throughout ejection.
(8) Somewhat surprisingly then, in view of the mechanisms in mammals, birds do not seem to use this seasonal message in the photoperiodic control of reproduction.
(9) Such factors can mask any interactions between biologic factors of the aging female reproductive system and other social factors that might otherwise detemine fertility during the later reproductive years.
(10) The results indicate that additional feed in late gestation improves reproductive performance in sows.
(11) Here we show that the subsequent survival and reproductive success of subordinate female red deer is depressed more by rearing sons than by rearing daughters, whereas the subsequent fitness of dominant females is unaffected by the sex of their present offspring.
(12) The variations in behavior and physiology across the year were considered in terms of factors constraining the timing of the natural reproductive pattern.
(13) Opposition to legal abortion takes magical thinking and a lack of logic | Jessica Valenti Read more The only female Republican candidate for the White House has doubled down on her restrictive position over reproductive rights since a successful debate performance .
(14) 23, 163-185) for growth and reproduction of individual daphnids.
(15) This variation in risk remained when allowance was made for the incomplete nature of some of the reproductive histories.
(16) A regulatory role for GABA in the reproductive tract is postulated.
(17) We have examined the serum MT response in the male hamster to a single dose of 25 micrograms MT administered in the morning or in the afternoon--the same timing and dose used by others to produce reproductive effects.
(18) The lavage model was considered suitable for reproduction of severe respiratory distress.
(19) Circumvaginal muscle (CVM) home training based on principles of exercise physiology were tested on 48 healthy reproductive-age women.
(20) the smallest concentrations were measured, differing significantly from animals in other reproductive periods.