scholarly journals The Maldevelopment of the Fetuses of Mice Treated with Gonadotropic Hormone before the Conception

1958 ◽  
Vol 31 (3-4) ◽  
pp. 195-202_1 ◽  
Author(s):  
Hideo Nishimura ◽  
Akira Shikata
Keyword(s):  
Gonadotropic Hormone

scholarly journals PREPARATION OF THE GONADOTROPIC HORMONE OF PREGNANT MARE BLOOD

1936 ◽  
Vol 114 (1) ◽  
pp. 59-63
Author(s):  
Edwin L. Gustus ◽  
Roland K. Meyer ◽  
Oliver R. Woods
Keyword(s):  
Gonadotropic Hormone

Prolificacy of Rats Treated with Mare Gonadotropic Hormone

Science ◽  
1940 ◽  
Vol 91 (2366) ◽  
pp. 436-437
Author(s):  
H. H. Cole
Keyword(s):  
Gonadotropic Hormone

scholarly journals CONCENTRATION OF THE GONADOTROPIC HORMONE IN PREGNANT MARE'S SERUM

1933 ◽  
Vol 58 (5) ◽  
pp. 569-574 ◽  
Author(s):  
Herbert M. Evans ◽  
Edwin L. Gustus ◽  
Miriam E. Simpson
Keyword(s):  
Aluminum Hydroxide ◽  
Physiological Saline ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Subcutaneous Injections ◽  
Gonadotropic Hormone ◽  
Female Mice ◽  
Immature Male ◽  
Active Aluminum

The gonadotropic hormone of the blood of the pregnant mare has been greatly concentrated by adsorption on active aluminum hydroxide followed by elution. The preparations so obtained gave demonstrable gonadotropic effects within 100 hours in 21 day old female mice following three subcutaneous injections of 0.001 mg. in 1 cc. of physiological saline. As is well known, other gonadotropic substances do not cause conspicuous development of the male gonads but injections of comparatively large doses of these preparations into immature male rats caused marked development of the testes, which in 10 days were trebled in weight. An astonishing increase in the weight of the seminal vesicles resulted, for these organs were approximately 75 times heavier than in controls.

THE APPEARANCE OF GONADOTROPIC HORMONE IN THE URINE OF WOMEN AFTER OVARIECTOMY*

Endocrinology ◽  
1940 ◽  
Vol 27 (1) ◽  
pp. 154-154 ◽  
Author(s):  
Robert I. Walter ◽  
Samuel H. Geist ◽  
Udall J. Salmon
Keyword(s):  
Gonadotropic Hormone

GONADOTROPIC HORMONE IN AP OF MALE AND FEMALE RABBITS DURING GROWTH1,2

Endocrinology ◽  
1942 ◽  
Vol 30 (1) ◽  
pp. 11-15 ◽  
Author(s):  
A. J. BERGMAN ◽  
MIRIAM E. TURNER
Keyword(s):  
Gonadotropic Hormone ◽  
Male And Female

scholarly journals The gonadotropic hormone and the level of blood phosphorus in the hen

1938 ◽  
Vol 32 (7) ◽  
pp. 1176-1180 ◽  
Author(s):  
Michael Laskowski
Keyword(s):  
Gonadotropic Hormone

scholarly journals Metabolic Changes Associated with Endocrine Activity and the Reproductive Cycle in XENOPUS LAEVIS

1934 ◽  
Vol 11 (3) ◽  
pp. 267-272
Author(s):  
H. A. SHAPIRO ◽  
H. ZWARENSTEIN
Keyword(s):  
Xenopus Laevis ◽  
Serum Calcium ◽  
Normal Level ◽  
Calcium Level ◽  
Calcium Metabolism ◽  
Serum Calcium Level ◽  
Intact Animal ◽  
Ovarian Tissue ◽  
Endocrine Activity ◽  
Gonadotropic Hormone

1. Experiments are described which show that active extracts of ovarian tissue minus corpus luteum can be obtained which significantly raise the lowered level of the serum calcium in ovariectomised toads; and also raise the serum calcium level in normal toads above the normal level. 2. Injection of adequate doses of antuitrin (Parke, Davis and Co.), raises the lowered level of serum calcium in hypophysectomised toads almost to normal; and of ovariectomised toads to the normal level. The effect is obtained more readily in the ovariectomised condition. 3. Injection of pituitrin (Parke, Davis and Co.), depresses the serum calcium level in normal, ovariectomised and completely hypophysectomised toads. The effect is more readily obtained in the normal intact animal than in the ovariectomised or the totally hypophysectomised state, when the ovaries have undergone involution. 4. It is suggested that there is evidence that the principles exerting a hormonelike action on calcium metabolism are not, in the case of the ovary, either oestrin or the luteal hormone, or in the case of the pituitary, the gonadotropic hormone.

scholarly journals Comparative analysis of the ftness of Drosophila virilis lines contrasting in response to stress

2019 ◽  
Vol 22 (8) ◽  
pp. 1090-1096
Author(s):  
E. K. Karpova ◽  
I. Yu. Rauschenbach ◽  
N. E. Gruntenko
Keyword(s):  
Heat Stress ◽  
Natural Populations ◽  
Population Level ◽  
Stress Reaction ◽  
Egg Laying ◽  
Drosophila Virilis ◽  
Gonadotropic Hormone ◽  
Adverse Conditions ◽  
Low Intensity ◽  
Response To Stress

One of the crucial elements contributing to the adaptation of organisms to unfavorable environmental conditions is the reaction of stress. The study of its genetic control and role in adaptation to unfavorable conditions are of special interest. The juvenile hormone (JH) acts as a gonadotropic hormone in adult insects controlling the development of the ovaries, inducing vitellogenesis and oviposition. It was shown that a decrease in JH degradation in individuals reacting to adverse conditions by stress reaction (R­individuals) causes delay in egg laying and seems to allow the population to “wait out” the unfavorable conditions, thereby contributing to the adaptation at the population level. However, monitoring natural populations of D. melanogaster for the capability of stress reaction demonstrated that they have a high percentage of individuals incapable of it (NR­individuals). The study of reproductive characteristics of R­ and NR­individuals showed that under normal conditions R­individuals have the advantage of procreating offspring. Under unfavorable conditions, if the stressor is intense enough, NR­individuals die, but if its intensity is low, then they, unlike R­individuals, continue to produce offspring. Based on these data, it was hypothesized that the balance of R­ and NR­alleles in the population ensures its adaptation under frequent stresses of low intensity. To verify the hypothesis by an experiment, the ftness characteristics (lifespan, fecundity) of the R and NR lines of D. virilis were studied under normal conditions and under regular heat stress of various frequency.

scholarly journals Zondek, V. On the delay of menstruation by follicular hormone. (Wiener klin Wschr. No. 15, 1936)

1937 ◽  
Vol 33 (12) ◽  
pp. 1507-1508
Author(s):  
Y. Kanel
Keyword(s):  
Anterior Lobe ◽  
Gonadotropic Hormone

The author summarizes the role of various factors causing menstruation. A number of different theories are described, and as a result, the author comes to the conclusion that menstruation is a complex hormonal process. The mechanism of menstruation depends on both the gonadotropic hormone of the anterior lobe and the hormones of the ovary folliculin, progestin.

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