Growth hormone (GH) concentration in the blood of healthy adult was measured by RIA (radioimmunoassay) method. The results are as follow: Concentration of GH in the blood of male is lower than in female(p<0.05). There is no significant difference in concentrations of GH at 8-10 AM and 6-9 PM.
Hormones ; Radioimmunoassay

Through studies on the hormonal threshold area of menstruation had shown that the hormonal threshold area of menstruation is not a right line but an area consisted of two limits, superior and inferior ones. Menstrual bleeding occurred only when the curve of hormonal effect on development of the endometrium is situated in this area of two limits. Above or under that threshold area the curve of hormonal effect on development does not cause endometrial hemorrhage. The author also showed that the superior limit has a mean value 57.65±43.36 pmol/L and the inferior one is at 29.27±19.43 pmol/L of estradiol. Basing on the above statement the author suggested that the menstruation may be defined as occurred when the curve of hormonal effect on endometrial development situates in a threshold area of menstrual bleeding and not when the sexual steroids go down under a certain threshold as earlier
Hormones ; Menstruation

A study on the healthy voluntary adults without acute or chronic thyroid diseases, with ages of 21-48 who lived in Hanoi, Hai phong and HoChi Minh city has shown that there were no differences of total T3, T4 and FT3, FT4, TSH in the morning, noon and afternoon and there were no significant difference of these between men and women in each region and between regions.
Hormones ; Receptors, Thyrotropin ; Thyroid Hormones

This study relates to stability of the hormones in the thyroid powder of the pig, dried by lyophilizating; vacuum drying at the temperature of 50oC, and by normal drying at the temperature 70oC. Using high performance liquid chromatography (HPLC) to measure thyroid hormone concentration in the powder of thyroid before and after release test at the temperature of 40±2oC and the relative humidity of 75±5% for 3 months. The result is: The hormone of the thyroid powder, dried at 70oC, have got required stability and it is less than the one of the thyroid powder dried by lyophilizating or vacuum drying.
Hormones ; Vacuum ; Thyroid Hormones ; Chromatography, Liquid

No abstract available.
Adrenal Cortex Hormones* ; Glaucoma*

No abstract available.
Aging* ; Gonadal Hormones* ; Gonads*

No abstract available.
Neuropeptides* ; Pituitary Hormones*

No abstract available.
Aging* ; Gonadal Hormones* ; Gonads*

No abstract available.
Neuropeptides* ; Pituitary Hormones*

No abstract available.
Adrenal Cortex Hormones*