Interval between induced ovulation by intravenous injection of HCG and spontaneous ovulation thereafter in adult rats
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چکیده
منابع مشابه
EFFECTS OF LEVOTHYROXINE ADMINISTRATION ON OVULATION RATE AND SEX HORMONE LEVELS IN PREPUBERTAL AND ADULT RATS
Thyroid gland dysfunction is associated with disorders of female reproductive functions. The aim of this study was to examine the effects of hyperthyroidism on ovulation rate and peripheral sex steroid levels in prepubertal and adult rats. Two groups of female rats aging 30 days (prepubertal rats) and 60 days (adult rats) were made hyperthyroid by oral administration of levothyroxine daily...
متن کاملOvulation in light-estrous rats induced by darkness.
Adult female rats show continual vaginal cornification and cease ovulation a few weeks after they are exposed to continuous lighting (light-estrous rats). When these rats were placed in the darkness for 10 hr, 80% of the animal ovulated approximately 46 hr later. Peripheral LH increased to a small peak immediately after placing in darkness concomitant with a decrease in pituitary LH content; a ...
متن کاملSubstitution of acupuncture for HCG in ovulation induction.
By using human menopausal gonadotropin (HMG) and human chorionic gonadotropin (HCG), fairly good clinical therapeutic efficacy has been obtained in the treatment of infertility. However, difficulties are brought about due to the ovarian hyperstimulation syndrome (OHSS) easily induced by these two drugs. Therefore, we attempted to use acupuncture instead of HCG in the induction of ovulation from...
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Two methods for the determination of ovulation were compared to one ultrasonography performed 5 times a day. Time of ovulation by echography was 40 +/- 5.8 h (mean +/- SD) after the onset of oestrus. Preovulatory LH rise (two blood samples per day) began near the onset of oestrus but, in our conditions, this parameter could not be used to predict ovulation. The basal level of progesterone (two ...
متن کاملAqueous porcine pineal extract: inhibition of ovulation induced with PMSG and HCG in immature mice.
Extracts of porcine pineal glands inhibited ovulation induced with gonadotropins (PMS(; and HCG) in prepuberal mice. Ovulations in mice given gonadotropins plus .0, .125, .25, .5 and 1.0 dose units of crude pineal extract (1.0 dose unit to 1.1 mg extractable protein) averaged 14.0, 9.2, 6.8, 6.0 and 2.9 ovulations per mouse, respectively. This was a significant inhibition over the controls (P<....
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ژورنال
عنوان ژورنال: The Japanese journal of animal reproduction
سال: 1969
ISSN: 0453-0551
DOI: 10.1262/jrd1955.14.129