Reproductive toxicity and metabolic perturbations in male rats exposed to boron

2021 ◽  
pp. 147370
Author(s):  
Chong Wang ◽  
Ziqing Kong ◽  
Lian Duan ◽  
Fuchang Deng ◽  
Yuanyuan Chen ◽  
...  
Keyword(s):  
Reproductive Toxicity ◽  
Male Rats

REPRODUCTIVE TOXICITY OF CHLORPYRIFOS, CYPERMETHRIN AND THEIR INTERACTION IN MALE ALBINO RATS

2018 ◽  
pp. 69-86
Author(s):  
Asmaa ELnamaky ◽  
Amal Halawa ◽  
Mamdouh Abouelmaged
Keyword(s):  
Reproductive Toxicity ◽  
Prostatic Acid Phosphatase ◽  
Serum Levels ◽  
Reproductive Organs ◽  
Male Rats ◽  
Albino Rats ◽  
Glutathione S Transferase ◽  
Significant Drop ◽  
Sperm Abnormalities ◽  
Pituitary Glands

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

N ‐acetyl cysteine co‐treatment abates perfluorooctanoic acid‐induced reproductive toxicity in male rats

Andrologia ◽  
2021 ◽  
Author(s):  
Solomon E. Owumi ◽  
Ayomide P. Akomolafe ◽  
Innocent O. Imosemi ◽  
Oyeronke A. Odunola ◽  
Adegboyega K. Oyelere
Keyword(s):  
Reproductive Toxicity ◽  
Perfluorooctanoic Acid ◽  
Male Rats ◽  
Acetyl Cysteine

Ameliorative effect of Alpinia officinarum Hance extract on nonylphenol‐induced reproductive toxicity in male rats

Andrologia ◽  
2021 ◽  
Author(s):  
Marzieh Pirzadeh ◽  
Mohammad Barary ◽  
Seyed Mohammad Hosseini ◽  
Sohrab Kazemi ◽  
Ali Akbar Moghadamnia
Keyword(s):  
Reproductive Toxicity ◽  
Male Rats ◽  
Alpinia Officinarum ◽  
Ameliorative Effect

Effect of oral administration of carbofuran on male reproductive system of rat

1995 ◽  
Vol 14 (11) ◽  
pp. 889-894 ◽  
Author(s):  
N. Pant ◽  
AK Prasad ◽  
SC Srivastava ◽  
R. Shankar ◽  
SP Srivastava
Keyword(s):  
Body Weight ◽  
Sperm Count ◽  
Reproductive Toxicity ◽  
Giant Cells ◽  
Toxicity Assessment ◽  
Male Rats ◽  
Ventral Prostate ◽  
Seminiferous Tubules ◽  
Effect Level ◽  
Dose Dependent Decrease

1 Carbofuran was administered orally to adult male rats at dose levels of 0.1, 0.2, 0.4 or 0.8 mg kg -1 body weight, 5 d wk-1 for 60 days. A dose dependent decrease was observed in body weight of rats treated with 0.2-0.8 mg carbofuran kg -1 body weight 2 A significant decrease in the weight of epididymides, seminal vesicles, ventral prostate and coagulating glands was observed at various test doses of carbofuran except at the lowest dose. 3 Decreased sperm motility, reduced epididymal sperm count along with increased morphological abnormali ties in head, neck and tail regions of spermatozoa were observed in rats exposed to 0.2, 0.4, or 0.8 mg carbo furan kg-1 body weight. 4 In addition, significant alterations were observed in the activities of marker testicular enzymes viz. sorbitol dehydrogenase (SDH), glucose-6-P-dehydrogenase (G6PDH) (decreased), lactate dehydrogenase (LDH) and γ-glutamyl transpeptidase (γ-GT) (increased) depending on dose. 5 Histologically, the results indicated the toxicity of carbo furan on testes depending on dose. The changes pre dominantly consisted of moderate oedema, congestion, damage to Sertoli cells and germ cells, along with the accumulation of cellular debris and presence of giant cells in the lumen of a few seminiferous tubules which showed disturbed spermatogenesis with the higher doses of carbofuran. 6 These observations determined a no effect level dose of 0.1 mg kg-1 body weight of carbofuran on the biochemi cal and morphological indices studied for male repro ductive toxicity assessment in the rat model. The results of the present study provide first hand information on the reproductive toxicity of carbofuran in male rats.

scholarly journals Reproductive toxicity of manganese dioxide in forms of micro- and nanoparticles in male rats

2019 ◽  
Author(s):  
Narges Yousefalizadegan ◽  
Zahra Mousavi ◽  
Tayebeh Rastegar ◽  
Yasaman Razavi ◽  
Parvaneh Najafizadeh
Keyword(s):  
Manganese Dioxide ◽  
Reproductive Toxicity ◽  
Male Rats ◽  
Vehicle Group ◽  
Left Testicle ◽  
Mno2 Nanoparticles ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Chronic Injection ◽  
Stimulating Factor

Background: Manganese Dioxide (MnO2) has long been used in industry, and its application has recently been increasing in the form of nanoparticle. Objective: The present study was an attempt to assess the effects of MnO2 nanoparticles on spermatogenesis in male rats. Materials and Methods: Micro- and nanoparticles of MnO2 were injected (100 mg/kg) subcutaneously to male Wistar rats (150 ± 20 gr) once a week for a period of 4 weeks, and the vehicle group received only normal saline (each group included 8 rats). The effect of these particles on the bodyweight, number of sperms, spermatogonia, spermatocytes, diameter of seminiferous tubes, testosterone, estrogen, follicle stimulating factor, and the motility of sperms were evaluated and then compared among the control and vehicle groups as the criteria for spermatogenesis. Results: The results showed that a chronic injection of MnO2 nanoparticles caused a significant decrease in the number of sperms, spermatogonia, spermatocytes, diameter of seminiferous tubes (p < 0.001) and in the motility of sperms. However, no significant difference was observed in the weight of prostate, epididymis, left testicle, estradiol (p = 0.8) and testosterone hormone (p = 0.2). Conclusion: It seems that the high oxidative power of both particles was the main reason for the disturbances in the function of the testis. It is also concluded that these particles may have a potential reproductive toxicity in adult male rats. Further studies are thus needed to determine its mechanism of action upon spermatogenesis.

scholarly journals Reproductive toxicity of triazole fungicides cyproconazole and epoxiconazole when exposed to male and female wistar rats during gametogenesis

2021 ◽  
Vol 54 (1) ◽  
pp. 52-61
Author(s):  
NR Shepelskaya ◽  
YaV Kolyanchuk
Keyword(s):  
Body Weight ◽  
Reproductive Toxicity ◽  
Reproductive Function ◽  
Female Rats ◽  
Male Rats ◽  
Corpora Lutea ◽  
Disruptive Effect ◽  
Male And Female ◽  
Two Samples ◽  
Adverse Effect Level

Aim. Studying the effect of generic pesticides cyproconazole (98 %) and two samples of epoxiconazole (epoxiconazole 1 — 95,75 % and epoxiconazole 2 — 98,7 %) on the reproductive system of male and female Wistar Han rats at the level of the organism when exposed during gametogenesis, identification and characterization of their hazard, as well as assessment of the risk of reproductive toxicity of these compounds. Materials and Methods. The test samples were administered daily (5 days a week) by oral gavage at doses of 0.2 and 2.0 mg/kg for cyproconazole and 0.5 and 2.0 mg/kg for epoxiconazoles during 11 weeks for males, and 10 weeks for females. Also, there were kept intact males and females, intended for crossover mating with experimental animals. After the end of the exposure, functional indicators of the state of the gonads and the ability of animals to reproduce offspring were studied. The duration and the frequency of each stage of the estrous cycle in female rats and the number of motile sperm, the total amount of sperm and the number of abnormal forms of germ cells of the male rats were studied. The reproductive function state in females was evaluated on day 20th of pregnancy. Thereby the number of corpora lutea in the ovaries, number of alive, dead and resorbed foetuses and embryos, the foetus weight, total weight of litters were registered. The studies were carried out in accordance with the recommendations of the Bioethics Commission and the Centre’s standard operating procedures, developed in accordance with the recommendations and requirements of Good Laboratory Practice (GLP). Conclusions. Test substances at a maximum dose of 2.0 mg/kg of body weight have reproductive toxicity and endocrine-disruptive effect, exerting a significant antiandrogenic effect on males and antiestrogenic effect on female rats. No-observed-adverse-effect-level (NOАEL) for gonadal and reproductive toxicity for male and female Wistar Han rats were established. They are 0.2 mg/kg body weight for cyproconazole and 0.5 mg/kg body weight for epoxiconazole. Key Words: azole fungicides, cyproconazole, epoxiconazole, reproductive toxicity, antiandrogenic and antiestrogenic effects, Wistar Han rats.

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