INHIBITORY ACTION OF CORTISONE ON TESTOSTERONE-INDUCED GROWTH OF THE VENTRAL PROSTATE, THE DORSOLATERAL PROSTATE, THE COAGULATING GLANDS AND THE SEMINAL VESICLES IN CASTRATED ADRENALECTOMIZED RATS

1972 ◽  
Vol 69 (2) ◽  
pp. 359-368 ◽  
Author(s):  
Lars-Eric Tisell
Keyword(s):  
Inhibitory Action ◽  
Testosterone Propionate ◽  
Reproductive Organs ◽  
Inhibitory Effect ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Adrenal Steroids ◽  
Androgenic Effect ◽  
Adrenalectomized Rats

ABSTRACT The weight and histology of the ventral and dorsolateral prostate, the coagulating glands and the seminal vesicles were studied in castrated non-adrenalectomized male rats after sixteen days of daily injections of testosterone propionate and in castrated adrenalectomized rats after daily injections of testosterone propionate alone or in combination with cortisone. Testosterone propionate was given in daily doses of 0.020 mg and cortisone in daily doses of 1 mg, 3 mg or 9 mg. Testosterone alone induced a less pronounced growth of the dorsolateral prostate, the coagulating glands and the seminal vesicles in castrated non-adrenalectomized than in castrated adrenalectomized rats, suggesting an inhibitory effect of adrenal steroids on the action of testosterone. Cortisone which has a weak androgenic effect when given alone, partially counteracted the testosterone induced growth of the accessory reproductive organs in castrated adrenalectomized rats.

THE GROWTH OF THE VENTRAL PROSTATE THE DORSOLATERAL PROSTATE, THE COAGULATING GLANDS AND THE SEMINAL VESICLES IN CASTRATED MALE RATS INJECTED WITH ACTH AND/OR INSULIN

1969 ◽  
Vol 62 (4) ◽  
pp. 694-710 ◽  
Author(s):  
Lars-Eric Tisell ◽  
Lennart Angervall
Keyword(s):  
Morphological Changes ◽  
Levator Ani ◽  
Regular Insulin ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Levator Ani Muscle ◽  
Adrenal Steroids ◽  
Protamine Zinc Insulin

ABSTRACT The growth of the ventral and the dorsolateral prostate, the coagulating glands, seminal vesicles and levator ani muscle was studied in castrated male rats after fifteen days of daily injections with ACTH or insulin alone, or in combination. ACTH was given in a dose of 8 IU daily. Insulin was administered in increasing daily doses, i. e. regular insulin up to 8 IU and protamine zinc insulin up to 10 IU. After ACTH treatment there were variable histological signs of stimulation of the dorsolateral prostate, while the other accessory reproductive organs showed no response. Regular insulin produced no quantitative or morphological changes in the accessory reproductive organs, and no morphological signs of increased secretion of the adrenal steroids. Administration of ACTH and regular insulin in combination stimulated the growth of all the accessory reproductive organs. Protamine zinc insulin produced prolonged hypoglycaemia and morphological signs of increase secretion of adrenal steroids, thus the adrenals became enlarged and the thymus atrophic. Protamine zinc insulin stimulated growth of all the accessory reproductive organs, a stimulation which was further accentuated after combination with ACTH. Possible mechanisms for the action of insulin on the male accessory reproductive organs are discussed. The varying response of the different parts of the prostate and the seminal vesicles emphasizes the importance of the simultaneous examination of these organs.

ADRENAL EFFECT ON THE GROWTH OF THE VENTRAL AND DORSOLATERAL PROSTATE IN CASTRATED RATS INJECTED WITH OESTRADIOL

1972 ◽  
Vol 71 (1) ◽  
pp. 191-204 ◽  
Author(s):  
Lars-Eric Tisell
Keyword(s):  
Epithelial Cells ◽  
Secretory Activity ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Adrenal Steroids ◽  
Oestradiol Benzoate ◽  
Combined Actions ◽  
Adrenalectomized Rats ◽  
Epithelial Growth ◽  
Stimulation Of

ABSTRACT The growth of the ventral and dorsolateral prostate, the coagulating glands and the seminal vesicles was studied morphologically in castrated non-adrenalectomized and castrated adrenalectomized rats following injections for ten days of oestradiol benzoate. Oestradiol benzoate was given in daily doses of 0.001 mg or 0.010 mg, and to non-adrenalectomized rats also in daily doses of 0.100 mg. Oestradiol increased the weight of all the accessory reproductive organs in both the adrenalectomized and non-adrenalectomized rats. The weight increase of the dorsolateral prostate was most pronounced in the nonadrenalectomized rats. Oestradiol induced signs of secretory activity in epithelial cells of the ventral and dorsolateral prostate in the non-adrenalectomized but not in the adrenalectomized rats. The higher the dose of oestradiol the more marked was the stimulation of the epithelial growth in the ventral and dorsolateral prostate of the non-adrenalectomized rats. The growth and secretory activity observed in epithelial cells of the ventral and dorsolateral prostate of the oestradiol treated castrated non-adrenalectomized rats is assumed to be the result of the combined actions of oestradiol and adrenal steroids rather than merely the effect of an increased secretion of adrenal steroids induced by the oestradiol treatment.

scholarly journals Antispermatogenic Activity of the Benzothiazoline Ligand and Corresponding Organoantimony(V) Derivative in Male Albino Rats

2006 ◽  
Vol 2006 ◽  
pp. 1-6 ◽  
Author(s):  
Pankaj K. Sharma ◽  
H. Rehwani ◽  
A. K. Rai ◽  
R. S. Gupta ◽  
Y. P. Singh
Keyword(s):  
Oral Administration ◽  
Reproductive System ◽  
Biochemical Parameters ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Control Group ◽  
Albino Rats ◽  
Sperm Density

Triphenylantimony(V) derivative,Ph3Sb(OPri)[SC6H4N:C(CH3)CH2C(O)CH3],1b, and the corresponding benzothiazoline ligand [1, 2],HNC6H4SC︹(CH3)CH2C(O)CH3,1a, have been tested for their effects on the reproductive system of male albino rats. The oral administration of both1aand1bat the dose level of 10 mg/rat/day produced significant reduction in the weights of testes, epididymides, seminal vesicles, and ventral prostate. Significant decrease in sperm motility as well as in sperm density resulted in 100% sterility. Significant (P<.01) alterations were also found in biochemical parameters of reproductive organs in treated male rats as compared to the control group. Production of preleptotene, pachytene, and secondary spermatocytes was decreased by 42%, 43%, 39%, and by 44%, 49%, 55% in the ligand,1a, and organoantimony(V) derivative,1b, treated rats, respectively. These results indicate that both compounds1aand1bare antispermatogenic in nature and on oral administration in male rats, and finally caused sterility. A comparison indicates that the organoantimony(V) derivative1bis more effective pertaining to its antispermatogenic activity than the corresponding ligand1a.

RECOVERY OF GONADAL FUNCTION IN MALE RATS TREATED NEONATALLY WITH 17β-OESTRADIOL BENZOATE

1964 ◽  
Vol 47 (2) ◽  
pp. 200-208 ◽  
Author(s):  
Fred A. Kind ◽  
Manuel Maqueo ◽  
A. Folch Pi
Keyword(s):  
Testosterone Propionate ◽  
Levator Ani ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Levator Ani Muscle ◽  
Gonadal Function ◽  
Gonadal Activity ◽  
Oestradiol Benzoate ◽  
Old Rats

ABSTRACT Groups of five day old rats were injected with 120 or 240 μg of oestradiol benzoate. When examined at the age of fifty days, the animal presented atrophied testes and marked decreases in the weights of ventral prostate, seminal vesicles and levator ani muscle. Treatment with pregnant mare's serum or with testosterone propionate given from day 20 through day 50 fully restored the gonadal activity. The dose of PMS needed to restore spermatogenesis was 10 IU which was given every third day. Testosterone propionate, 1 mg, given daily was equally effective.

scholarly journals Effect of Benzothiazoline Ligand and Corresponding Organoantimony(V) Derivative on the Reproductive System of Male Rats

2006 ◽  
Vol 2006 ◽  
pp. 1-7 ◽  
Author(s):  
D. Shanker ◽  
A. K. Rai ◽  
Y. P. Singh ◽  
H. Rehwani ◽  
V. Khushalani ◽  
...  
Keyword(s):  
Condensation Reaction ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Control Group ◽  
Albino Rats ◽  
Elemental Analyses ◽  
Pachytene Spermatocytes ◽  
Antimony Complex

BenzothiazolineHNC6H4SC︹(C6H5)CH:C(OH)COOCH3 1prepared by the condensation reaction of aroyl pyruvate and 2-aminothiophenol has been treated withPh3Sb(OPri)2to yieldPh3Sb[SC6H4NC(C6H5)CH:CO︹COOCH3] 2. These compounds have been characterized by elemental analyses and molecular weight determinations. The probable structures of the ligand as well as antimony complex have been tentatively proposed on the basis of IR and NMR (H1andC13) spectral evidences. Both compounds have been tested for their antifertility activity in male albino rats. The oral administration of compounds1and2at the dose level of 10 mg/rat/day significantly reduced the weights of testes, epididymides, ventral prostate, and seminal vesicles. The production of preleptotene spermatocytes was decreased by36.57%;57.23%, pachytene spermatocytes by40.06%;62.01%, and secondary spermatocytes by52.45%;63.22%, following the treatment of compounds1and2, respectively. The marked reduction in sperm motility and density resulted in infertility by100%. Significant (P<.01) alterations were found in biochemical parameters of reproductive organs in treated animals as compared to control group. It is concluded that all these effects may finally impair the fertility of male rats.

EFFECT OF CORTISONE ON THE GROWTH OF THE VENTRAL PROSTATE, THE DORSOLATERAL PROSTATE, THE COAGULATING GLANDS AND THE SEMINAL VESICLES IN CASTRATED ADRENALECTOMIZED AND CASTRATED NON-ADRENALECTOMIZED RATS

1970 ◽  
Vol 64 (4) ◽  
pp. 637-655 ◽  
Author(s):  
Lars-Eric Tisell
Keyword(s):  
Levator Ani ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Present Knowledge ◽  
Ventral Prostate ◽  
Levator Ani Muscle ◽  
Smooth Muscle Tissue ◽  
Histological Changes ◽  
Adrenalectomized Rats ◽  
Stimulation Of

ABSTRACT The growth of the ventral and the dorsolateral prostate, the coagulating glands and the seminal vesicles was studied in cortisone-treated and non-treated castrated non-adrenalectomized and castrated adrenalectomized rats. The cortisone was administered in daily doses of 3 mg or 9 mg for a period of 15 days. Combined castration and adrenalectomy resulted in a greater degree of atrophy of the ventral prostate than castration alone, thus indicating some maintenance effect of the adrenals on the ventral prostate. No differences in the other accessory reproductive organs were demonstrated when comparing non-treated castrated non-adrenalectomized with castrated adrenalectomized rats. Both doses of cortisone stimulated the growth of the dorsolateral prostate, the coagulating glands and the seminal vesicles, but the larger dose resulted in a greater degree of stimulation. Only the larger dose of cortisone gave histological changes in the ventral prostate indicative of a slight stimulating effect. Catabolic or anti-anabolic effects of cortisone as registered by a decrease in body weight and weight of the levator ani muscle did not inhibit the growth stimulating effect of cortisone on the accessory reproductive organs. Cortisone stimulated the growth of both the epithelium and the smooth muscle tissue of the glands. The effect on the different accessory reproductive organs after cortisone administration was contrary to previous studies, which demonstrated the stimulating effects of androgens in the rat, in that the ventral prostate was relatively unstimulated. Possible mechanisms for the stimulation of the growth of the accessory reproductive organs are discussed in the light of our present knowledge of cortisone metabolism and of the secretion in the cortisone-treated rats of hormones which have been found to modify the growth of the accessory reproductive organs.

THE GROWTH OF THE VENTRAL PROSTATE, THE DORSOLATERAL PROSTATE, THE COAGULATING GLANDS AND THE SEMINAL VESICLES IN CASTRATED ADRENALECTOMIZED RATS INJECTED WITH OESTRADIOL AND/OR CORTISONE

1971 ◽  
Vol 68 (3) ◽  
pp. 485-501 ◽  
Author(s):  
Lars-Eric Tisell
Keyword(s):  
Histological Examination ◽  
Combined Treatment ◽  
Secretory Activity ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Dependent Growth ◽  
The Individual ◽  
Stimulation Of

ABSTRACT The growth of the ventral and dorsolateral prostate, the coagulating glands and the seminal vesicles was studied morphologically in castrated adrenalectomized male rats following daily injections for sixteen days of oestradiol benzoate or cortisone acetate alone, or in combination. Oestradiol was given in daily doses of 0.001 mg or 0.010 mg. Cortisone was administered in daily doses of 1 mg or 3 mg. After oestradiol alone the histological examination revealed an increase in the amount of fibromuscular tissue especially in the coagulating glands and the seminal vesicles but no signs of secretory activity in the epithelium. Cortisone alone induced a moderate stimulation of the epithelium in all the accessory reproductive organs but no signs of secretory activity were observed in the ventral prostate. Oestradiol and cortisone given in combination induced pronounced proliferation of the epithelium in all the accessory reproductive organs. After this treatment the epithelium of the ventral prostate also showed signs of secretory activity. The response of the epithelium in all the accessory reproductive organs was dependent on the size of the dose of both oestradiol and cortisone. Cortisone counteracted the fibromuscular overgrowth especially observed in the coagulating glands and the seminal vesicles after oestradiol given alone. The individual smooth muscle cells, however, were better developed after the combined treatment. The effects of the combined treatment are discussed in the light of the present knowledge of the individual effects of oestradiol and cortisone on the accessory reproductive organs. The importance of including a histological examination in experiments on hormonal dependent growth of the accessory reproductive organs of male rats is emphasized.

METABOLISM AND MODE OF ACTION OF ANDROGENS IN TARGET TISSUES OF MALE RATS

1972 ◽  
Vol 69 (1) ◽  
pp. 165-173 ◽  
Author(s):  
H. Schmidt ◽  
I. Noack ◽  
K. D. Voigt
Keyword(s):  
Cell Proliferation ◽  
Cell Metabolism ◽  
Seminal Vesicles ◽  
Male Rats ◽  
Ventral Prostate ◽  
Nucleic Acid Content ◽  
The Difference ◽  
Independent Effects ◽  
Sites Of Action ◽  
Peripheral Metabolism

ABSTRACT The effect of testosterone and 5α-dihydrotestosterone on protein and nucleic acid content as well as on the activities of some enzymes has been studied in the ventral prostate and the seminal vesicles of immature castrated rats. Both androgens were given intraperitoneally in doses of 1 mg daily for one or three days the rats were sacrificed one day after the last injection. In the prostate it was found that 5α-dihydrotestosterone had a greater effect on DNA increase, i. e. cell proliferation than testosterone, whereas cell metabolism was stimulated by the two androgens to nearly the same extent. In the seminal vesicles a single dose led to the same results as had been obtained in the prostate, i. e. a greater cell proliferative action of 5α-dihydrotestosterone and an equal stimulation of cell metabolism by testosterone and 5α-dihydrotestosterone was also observed. When three doses of the two androgens were given, cell proliferation as well as cell metabolism in the seminal vesicles were significantly more increased after 5α-dihydrotestosterone than after testosterone. The difference of action after systemic administration of the two androgens is explained by their different accumulation and by their different peripheral metabolism in the target tissues. From the partly independent effects of various androgens on cell proliferation and cell metabolism the conclusion may be drawn that there exist at least two intracellular sites of action.

scholarly journals Altered sexual differentiation of hepatic uridine diphosphate glucuronyltransferase by neonatal hormone treatment in rats

1979 ◽  
Vol 180 (2) ◽  
pp. 313-318 ◽  
Author(s):  
Coral A. Lamartiniere ◽  
Cindy S. Dieringer ◽  
Etsuko Kita ◽  
George W. Lucier
Keyword(s):  
Enzyme Activity ◽  
Adult Male ◽  
Sexual Differentiation ◽  
Reproductive Tract ◽  
Testosterone Propionate ◽  
Hormone Treatment ◽  
Male Rats ◽  
Ventral Prostate ◽  
Uridine Diphosphate ◽  
Neonatal Administration

The hepatic microsomal enzyme UDP-glucuronyltransferase undergoes a complex developmental pattern in which enzyme activity is first detectable on the 18th day of gestation in rats. Prepubertal activities are similar for males and females. However, postpubertal sexual differentiation of enzyme activity occurs in which male activities are twice those of females. Neonatal administration of testosterone propionate or diethylstilboestrol to intact animals resulted in lowered UDP-glucuronyltransferase activity in liver microsomal fractions of adult male rats, whereas no changes were observed in the adult females and prepubertal male and female animals. Neonatal administration of testosterone propionate and diethylstilboestrol adversely affected male reproductive-tract development as evidenced by decreased weights of testes, seminal vesicles and ventral prostate. Diethylstilboestrol also markedly decreased spermatogenesis. Hypophysectomy of adult male rats resulted in negative modulation of microsomal UDP-glucuronyltransferase and prevented the sexual differentiation of enzyme activity. In contrast hypophysectomy had no effect on female UDP-glucuronyltransferase activity. A pituitary transplant under the kidney capsule was not capable of reversing the enzyme effects of hypophysectomy, therefore suggesting that the male pituitary factor(s) responsible for positive modulation of UDP-glucuronyltransferase might be under hypothalamic control in the form of a releasing factor. Neonatal testosterone propionate and diethylstilboestrol administration apparently interfered with the normal sequence of postpubertal UDP-glucuronyltransferase sexual differentiation.

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