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 ◽  
...  

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.

2006 ◽  
Vol 2006 ◽  
pp. 1-6 ◽  
Author(s):  
Pankaj K. Sharma ◽  
H. Rehwani ◽  
A. K. Rai ◽  
R. S. Gupta ◽  
Y. P. Singh

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.


1972 ◽  
Vol 69 (2) ◽  
pp. 359-368 ◽  
Author(s):  
Lars-Eric Tisell

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.


1969 ◽  
Vol 62 (4) ◽  
pp. 694-710 ◽  
Author(s):  
Lars-Eric Tisell ◽  
Lennart Angervall

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.


2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Latika Dawara ◽  
S. C. Joshi ◽  
R. V. Singh

A series of Bi(III) and As(III) complexes with two N∩S donor ligands, 1-(4-chloro-2-oxo-2H-chromen-3-yl)-methylene)-thiosemicarbazide (L1H) and N′-[1-(2-oxo-2H-chrome-3yl-ethylidene]-hydrazinecarbodithionic acid benzyl ester (L2H) have been synthesized by the reaction of BiCl3 and Ph3As with ligands in 1 : 1 and 1 : 2 molar ratios. All the synthesized compounds were characterized by elemental analyses, melting point determinations, and a combination of electronic, IR, 1H NMR, 13C NMR spectroscopic techniques, and X-ray diffraction for structure elucidation. In order to evaluate the effect of metal ions upon chelation, both the ligands and their complexes have been screened for their antimicrobial activity against the various pathogenic bacterial and fungal strains. The metal complexes have shown to be more antimicrobial against the microbial species as compared to free ligands. Both the ligands and their corresponding metal complexes have been tested for their antifertility activity in male albino rats. The marked reduction in sperm motility and density resulted in infertility. Significant 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.


Author(s):  
Alexander Reznikov ◽  
Аnna Lymareva

Abstract. In everyday life, people come into contact with chemical products that have hormone-like properties, for example, antiandrogenic (dibutyl phthalate, DBP) or estrogenic (bisphenol A, BPA). For a number of years, the issue of the potential harm of low doses of these endocrine disruptors (ED) for a developing fetus after entering the body of a pregnant mother has been discussed. Taking into consideration the ED ability to overcome the placental barrier, and the fact that one of the general mechanisms of the pathogenic effect of ED on humans and animals is oxidative stress, it is reasonable to study the state of lipid peroxidation (LPO) in the reproductive organs of adult male offspring, which was subjected to prenatal effects of low doses of DBP and BPA. The aim is to elucidate the prenatal effect of low doses of DBP and BPA on the content of LPO products in the ventral prostate (VP) and gonads of adult male rats. Material and methods. Wistar rats received orally an oil solution of DBP at 100 mg / kg bw. or BPA in Dorfman gel at 25 μg / kg bw per day from 15 to 21 days of pregnancy, control animals – carriers of drugs. In male offspring of 6 and 18 months of age, the contents of LPO products – malonic dialdehyde (MDA) and diene conjugates (DC) – were determined per mg of protein in the VP and testes. Results. In the testes of young rats prenatally exposed to DBP, the contents of both studied LPO products were significantly increased. The content of MDA in the VP of aging experimental rats exceeded 6 times, and DC – 1.5 times the values of control animals. The expression levels of MDA and DC in the testes of experimental animals increased by 134 % and 37 %, respectively. In the testes of 6-month-old rats exposed to BPA in utero, the contents of LPO products significantly increased in comparison with the control group: MDA by 155 %, DC – by 16 %. In the VP, the content of MDA significantly increased, DC did not differ from the control group. Conclusions. The result of oral administration of DBP to rats at a threshold dose relative to reproductive fetotoxicity during the last week of pregnancy is the activation of LPO in the testes of young and in the VP and testes of aging offspring. Oral administration of a subthreshold BPA dose to rats in the last week of pregnancy leads to the activation of LPO in the testes and the VP of young offspring. Key words: dibutyl phthalate, bisphenol A, prenatal action, lipid peroxidation, male rats, ventral prostate, testes.


1971 ◽  
Vol 68 (3) ◽  
pp. 485-501 ◽  
Author(s):  
Lars-Eric Tisell

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.


1972 ◽  
Vol 69 (1) ◽  
pp. 165-173 ◽  
Author(s):  
H. Schmidt ◽  
I. Noack ◽  
K. D. Voigt

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.


Author(s):  
Asmaa ELnamaky ◽  
Amal Halawa ◽  
Mamdouh Abouelmaged

he present work was designed to investigate the reproductive toxicity induced by oral administration of chlorpyrifos (CPF), cypermethrin (CYP) and their combination in adult male albino rats. Forty mature male albino rats were separated into four groups (10 each), the first group was used as control, while second, third and fourth groups received orally 1/20 LD50 of CPF (10 mg/kg b.wt), 1/20 LD50 of CYP (17.22 mg/kg b.wt) and 1/40 LD50 of CPF plus 1/40 LD50 of CYP (5 mg/kg b.wt CPF plus 8.61 mg/kg b.wt CYP) respectively for 26 days. The results revealed that exposure to CPF and/or CYP induced a significant decrease in the reproductive organs weight. Moreover, a significant decrease in spermatic picture (sperm cell concentration and viability) was observed with high percent of sperm abnormalities. Serum levels of testosterone and pituitary gonadotropins (FSH and LH) have been declined significantly in all treated groups. Significant elevations were observed in malondialdehyde and nitric oxide concentrations, while antioxidant enzymes superoxide dismutase and glutathione-S-transferase activities were decreased significantly as a result of induced oxidative stress. A significant drop in prostatic acid phosphatase activity was observed. Additionally, the results showed some histopathological alterations in the reproductive organs as well as neurological lesions in brain and pituitary glands. In conclusion, CPF and CYP induce deleterious effects on reproductive efficiency of male rats which reflect more obvious impacts when both combined


2021 ◽  
pp. 39-45
Author(s):  
Nura I. Al-Zail ◽  
Salah F. Kamies

Pyrethroid cyhalothrin (PC) is an insecticide that is used worldwide for pest control in agriculture and household use. Samoa extract (SE) is a potent antioxidant protecting cells from oxidative stress. The present study investigates the protective and therapeutic effect of SE on PC-induced changes in sperm quality in male rats. Fifty adult male albino rats were divided into five groups: group I: served as control; group II: received PC i.p. only (6.2 mg/kg b.wt.); group III: received SE only (100 mg/kg b.wt., p.o.) for eight weeks; group IV: received SE as a protective agent daily for eight weeks, then followed by the administration of PC (i.p.) three times a week for two weeks; group V: exposed to PC (i.p.) three times a week for two weeks, then treated with the SE daily for 8 weeks. Results showed that PC caused markedly impaired sperm quality (a count, viability, motility, and abnormality). Compared to PC-treated animals, SE in the protective group markedly restored the alteration of sperm indices. However, SE in the curative group was found to be less effective in restoring PC-induced alterations. In conclusion, the data of this study revealed that the SE as a protective agent is more effective than as a therapeutic agent. Keywords: Samoa; Pyrethroid; Sperm quality; Rat


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