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Results for “Ovulation Detection”

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At least 37 records · Page 2Linked to original sources
PubMed1979

The concentrations of urinary oestrone-3-glucuronide, LH and pregnanediol-3alpha-glucuronide as indices of ovarian function.

Methods based upon the principles of radioimmunoassay have been developed and evaluated for the measurement of oestrone-3-glucuronide, LH and pregnanediol-3alpha-glucuronide in samples of unextracted urine. The procedures have been applied to daily urine (early morning fraction and combined 24 hour collections) from 6 women throughout one complete menstrual cycle and to serial samples from an additional 14 women who only collected early morning specimens. The results showed that there were characteristic, well-defined changes in the concentration of all 3 metabolites in both samples of urine and from all subjects. In addition, there was a reasonable correlation between the concentration of all 3 compounds in samples of early morning urine and the corresponding rates of excretion per 24 hours. These findings suggest that the procedures may be of value for monitoring ovarian function over long periods of time, without the problems of stress and inconvenience to the patient. Furthermore, the ratio of values for oestrone-3-glucuronide to pregnanediol-3alpha-glucuronide may be used to indicate the start and finish of the fertile period.

Adult↗
PubMed1977

Sialic acid concentration in the reproductive organs, pituitary gland and urine of the Indian langur monkey (Presbytis entellus entellus).

The concentration of sialic acid was determined in the reproductive organs, pituitary gland and urine of male and female langur monkeys. In the male, sialic acid concentration was lowest in the testes and highest in the epididymides. Both caput and cauda epididymides contained almost the same concentration. Castration and subsequent androgen administration did not modify the concentration of sialic acid by comparison with intact animals, suggesting that sialic acid is not androgen-dependent in the langur. There was no significant difference in sialic acid concentration in the uterus during the proliferative and luteal phases of the menstrual cycle. After ovariectomy, there was a decrease in the concentration of sialic acid in the uterus, cervix and vagina while oestrogen or oestrogen plus progesterone administration increased its concentration significantly, but not to the control level. However, the difference in concentration between oestrogen-treated and oestrogen plus progesterone-treated monkeys was not significant. There was a peak of sialic acid excretion in the urine on day 8 of the normal 22-day menstrual cycle, i.e. a day before the probable day of ovulation. In pregnant monkeys siliac acid excretion increased significantly 2 days before delivery compared with the values recorded 7 to 3 days before parturition. The part played by sialic acid during the menstrual cycle and pregnancy in the female is not clear.

Animals↗
PubMed1977

Preselective sex determination.

Preselective sex determination in ten consecutive pregnancies has been achieved by means of strict control over timing and technique of coitus which was combined with acidic or alkaline douching. Eight female and two male babies were born.

Acetates↗
PubMed1976

"Timing" of ovulation by laparoscopy and evaluation of some physico-chemical parameters.

The Authors describe the laparoscopic aspects of spontaneous human ovulation and correlate it with the evaluation of basal body temperature, the total urinary oestrogens, pregnanediol and urinary LH and some hematic values of 17-beta-estradiol, 17-alpha-Hydroxyprogesterone and rogesterone. They find that the rise in temperature and the oestrogenuria peak precede ovulation by some hours in the great ovulation by sompe hours in the great majority of cases. They analyze the validity of the other parameters studied, and show a relatively constant behavior, with regard to ovulation, in the mean evaluation of several cases. In the individual analysis, on the contrary, this relation is difficult to find and less significant. The Authors stress the importance of comparing the physico-chemical evaluations with the biological phenomenon of ovulation directly ascertained by means of laparoscopy.

Body Temperature↗
PubMed1976

Alkaline phosphatase, arylsulfatase and beta-glucuronidase in saliva of cyclic women.

Levels of the enzymes alkaline phosphatase, arylsulfatase, and beta-glucuronidase have been measured in whole unstimulated saliva samples collected daily during normal menstrual cycles. The cellular content of the saliva has been shown to be a major source of the three enzymes. The enzymes were found to have peak maximum levels of activity during the periovulatory -hase of the cycle. This observation can be attributed to the presence of increased numbers of exfoliated cells from the oral mucosa resulting from the pre-ovulatory estrogen stimulus to cell proliferation.

Alkaline Phosphatase↗