scholarly journals Histomorphological Effects of Cottonseed Oil on Testes in Adult Male Wistar Rats

2018 ◽  
Vol 25 (4) ◽  
Author(s):  
Lilian Ebele Chris-Ozoko ◽  
Onome Okpe ◽  
Wilson Josiah Iju ◽  
John Chukwuma Oyem
Keyword(s):  
Adult Male ◽  
Wistar Rats ◽  
Cottonseed Oil ◽  
Male Rats ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Luminal Diameter ◽  
Orogastric Tube ◽  
Group I ◽  
Male Wistar Rats

Cottonseed oil is an extract from the seeds of cotton plant, that is rich in protein, carbohydrate and fiber.          The objective of the research was to study the effect of cottonseed oil on the histology of the testis.          Materials and methods. Twelve adult male Wistar rats weighing 200 – 250g, were randomly sorted into four groups (I - IV), each containing three animals. Cottonseed oil was administered orally to the experimental animals by means of an orogastric tube. The rats in Group I (the control group) received standard rat pellet and oral normal saline ad libitum only. The animals in Groups II, III, and IV received 0.2 ml, 0.6 ml and 1.0 ml of cotton seed oil per body weight respectively. On the 21st day, the animals were sacrificed by cervical dislocation. The testes were excised and, then, fixed with appropriate fixatives for routine tissue processing.          Results. The results revealed an increase in the luminal diameter of seminiferous tubules, a decrease in the Leydig cell population, the disorientation of spermatogenic series and their detachment from the germinal epithelium.          Conclusions. The present study demonstrated that oral administration of cottonseed oil to male rats displayed a deleterious effect on their testis by disrupting spermatogenesis and the histological architecture of the testis.

scholarly journals Azathioprine and Methotrexate impaired the morphology and functions of the testes in adult wistar rats

2014 ◽  
Vol 31 (02) ◽  
pp. 075-081
Author(s):  
A. Akinlolu ◽  
O. Akinola ◽  
P. Khobe ◽  
K. Obasi ◽  
O. Dada
Keyword(s):  
Adult Male ◽  
Wistar Rats ◽  
Follicle Stimulating Hormone ◽  
Physiological Saline ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Connective Tissues ◽  
Group I ◽  
Male Wistar Rats ◽  
Dose Dependent

Abstract Introduction: AAzathioprine and Methotrexate are both used in the treatment of cancer; and are classified as cytotoxic drugs with reported adverse effects such as oxidative damage to the DNA/RNA, the testes and sperm cells. This study, therefore, tested the hypothesis that AAzathioprine and Methotrexate administrations impair the morphology and functions of the testes in adult male wistar rats. Methods: AAzathioprine (50-150mg per day) and Methotrexate (2.5mg per week) are used in the treatment of cancer in adult Man. We tested the hypothesis that AAzathioprine and Methotrexate impair the morphology and functions of testes in rats. Forty adult male wistar rats (150-230g) were employed in the study: Control Group I received physiological saline while Experimental Groups II - V received oral administrations of 5mg/kg/bodyweight of AAzathioprine per day, 15mg/kg/bodyweight of AAzathioprine per day, 8mg/kg/bodyweight of Methotrexate per week and 20mg/kg/bodyweight of Methotrexate per week respectively for 35 days. Results: Histological examinations of the testes of rats of Groups II - V showed dose-dependent morphological anomalies such as fewer collagen ibers of connective tissues, disrupted seminiferous tubules and scanty spermatozoa when compared to rats of Group I. Statistical analyses showed dose-dependent elevated levels (P≤0.05) of superoxide dismutase and malondialdehyde in testes homogenates of rats of Groups II - V when compared to rats of Group I. This implied increased oxidative stress in rats of Groups II - V. Evaluations of Follicle Stimulating Hormone and Testosterone showed dose-dependent significantly elevated levels (P≤0.05) in rats of Groups II - V when compared to rats of Group I. Conclusions: Our findings are consistent with the stated hypothesis.

scholarly journals Testicular and epididymal histomorphometric assessment in F1 male Wistar rats after gestational Ricinus communis oil exposure

2015 ◽  
Vol 32 (03) ◽  
pp. 187-191 ◽  
Author(s):  
S. Salami ◽  
J. Omirinde ◽  
M. Balogun ◽  
Y. Raji
Keyword(s):  
Wistar Rats ◽  
Ricinus Communis ◽  
Male Rats ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Critical Periods ◽  
Luminal Diameter ◽  
Male Wistar Rats ◽  
And Function ◽  
Tubular Diameter

Abstract Introduction: Fetal programming hypothesis presupposes that stimulus or insult acting during critical periods of uterine growth and development do alter tissue structure and function. In the present study changes in histomorphometric integrity of the testes and epididymis in adult F1 male rats maternally exposed to Ricinus communis oil (RCO) at different gestation periods were assessed. Materials and Methods: Therapeutic dose of RCO 950 mg/kg BW was administered to pregnant Wistar rats at gestation days GD 1-7, 7-14, 14-21 and 1-21 respectively. Testes and epididymis of adult male F1 offspring were then harvested for Histomorphometry assessment under Light microscope. Seminiferous tubular diameter (STD), seminiferous luminal diameter (SLD) and Seminiferous epithelial height (EH) of both peripheral and central seminiferous tubules were measured in the testes. Epididymal tubular diameter (ETD), epididymal luminal diameter (ELD) and epididymal epithelial height (EEH) were measured in epididymis. Results: Results were expressed as the mean ± SEM and significance taken at p<0.05. STD significantly (p<0.001) increased in F1 males from GD1-7, 7-14, 14-21 relative to control group. SEH significantly (p<0.001) decreased in F1 males from GD1-7,7-14 and 1-21. SLD increased significantly (p<0.001) in F1males from GD1-7, 7-14, 14-21 and 1-21. ETD significantly (p<0.01) increased in F1 males from GD1-7, 7-14, 14-21. EEH significantly (p<0.001) increased in F1 males from GD1-7 and GD7-14. ELD however increased significantly (p<0.001) only in F1 males from GD1-7. Conclusion: Maternal RCO exposure at different gestation periods impaired negatively histomorphometry of the testis and epididymis in male offspring.

scholarly journals Influence of prolonged flaxseed ( Linum usitatissimum ) consumption over epididymis and testicle histoarchitecture of Wistar rats

2017 ◽  
Vol 37 (6) ◽  
pp. 650-656 ◽  
Author(s):  
Lanna B.N.S. Corrêa ◽  
Ludmila F.M. de F. Cardozo ◽  
Ilma C. de A. Ribeiro ◽  
Gilson T. Boaventura ◽  
Maurício A. Chagas
Keyword(s):  
Sertoli Cell ◽  
Wistar Rats ◽  
Serum Levels ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Lactation Period ◽  
Luminal Diameter ◽  
Flaxseed Meal ◽  
Male Wistar Rats ◽  
Hormonal Evaluation

ABSTRACT: Flaxseed is considered a functional food with several health benefits. However, because of its high phytoestrogen content, flaxseed influences hormone metabolism and affects the gonadal biomorphology. In this study, computerized histomorphometry was used to evaluate seminiferous and epididymal tubules, considering the different regions of the epididymis (head, body and tail) of rats subjected to a prolonged diet of flaxseed. Young adult male Wistar rats (n=20) were divided into 2 groups during their lactation period: Control Group (CG), fed casein-based meals and Flaxseed Group (FG), fed a 25% flaxseed meal. After 250 days of continuous ingestion, the animals were euthanized and a blood sample was collected. The testicles and epididymis were removed and fixed in buffered formalin solution. The samples were subjected to routine histological paraffin techniques and stained with hematoxilin and eosin. Immunostaining was performed using an antivimentin antibody for Sertoli cell identification. For morphometry, images of the slides were scanned and analyzed using Image J to determine the epithelial height, tubular and luminal diameter and tubular and luminal area. In the hormonal evaluation, FG had a higher serum concentration of estrogen (P=0.001), but no change was observed in the concentration of testosterone. The morphometric assay of seminiferous tubules and epididymal regions revealed no significant differences between the analyzed groups. Similarly, Sertoli cell quantification showed no significant differences in the FG (P=0.98). These results revealed that the continuous and prolonged intake of 25% flaxseed meals from gestation to 250 days of age, even with a significant increase in serum levels of estradiol, does not exert adverse effects on the testicular and epididymal structure or on the cells participating in the spermatogenesis of rats.

scholarly journals Amlodipine besylate impairs the morphology of bone marrow in adult male wistar rats

1970 ◽  
Vol 6 (1) ◽  
pp. 867-872
Author(s):  
AA Akinlolu ◽  
OK Ghazali ◽  
LB Ayantunji ◽  
GO Omotoso
Keyword(s):  
Bone Marrow ◽  
Adult Male ◽  
Wistar Rats ◽  
Physiological Saline ◽  
Control Group ◽  
Amlodipine Besylate ◽  
Group I ◽  
Male Wistar Rats ◽  
Long Acting ◽  
Dose Dependent

Amlodipine is a long-acting calcium channel blocker used in the treatment of hypertension and angina. In adult man, the treatment regimen is 5 or 10 mg daily. This study evaluated the effects of prolonged oral administration of Amlodipine Besylate on the morphology of bone marrow in adult male Wistar rats. Sixteen rats (140 - 190 g) comprising of four groups were employed in the study. Rats of Control Group I received physiological saline orally while rats of Experimental Groups II - IV received oral administrations of 5, 10 and 15 mg/kg bodyweight of Amlodipine Besylate respectively for nine weeks. Histo-pathological examinations of the bone marrow showed normal cytoarchitecture of erythrocytes and leukocytes in rats of Control Group I. However, dose-dependent degeneration and lyses of erythrocytes and leukocytes were observed in amlodipine-treated rats. In conclusion, impaired morphology of the bone marrow were observed in amlodipine-treated adult male Wistar ratsKey words: Amlodipine Besylate, bone marrow, morphology, rats.

scholarly journals Synthesis of Silver Nano-particles by Electrochemical Method and the Effects on the Serum Levels of Thyroid Hormones (T3, T4) in Adult Male Rats

2019 ◽  
Vol 13 (4) ◽  
pp. 21-25
Author(s):  
Zohreh Parang ◽  
◽  
Davood Moghadamnia ◽  
Keyword(s):  
Adult Male ◽  
Electrochemical Method ◽  
Wistar Rats ◽  
Serum Levels ◽  
Nano Particles ◽  
Male Rats ◽  
Control Group ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
The Mean

Background: Silver nano-particles have anti-fungal properties. In the present study, silver nano-particles were synthesized by electrochemical method and its effects on the serum levels ofT3 and T4 hormones were investigated in adult male rats. Methods: In this experimental study, 28 adult male Wistar rats weighing approximately 180-220g were divided into 4 groups of 7 rats. The control group (no treatment). The experimental groups 1and 2 received silver intraperitoneal nano-particle doses of 25 and 100 mg/kg, respectively, for 14 days. The nano-aprticles had been synthesized at 75 seconds interval. The experimental group 3 received silver nano-particles that were synthesized at 300 seconds interval with an intraperitoneal dose of 25 mg/kg for 14 days. At the end of this period, blood samples were obtained from the rats’ hearts, and the serum levels of T3 and T4 hormones were measured. The results were statistically analyzed using ANOVA and Duncan tests. Results: At the completion of the study, there was no significant difference in the mean body weights in all experimental groups compared to control group. The results showed that the mean serum levels of T3 hormone in the experimental group1 increased significantly relative to the control group. However, there was no significant difference in the mean serum levels of T4 hormone in all experimental groups compared to that in the control group (P < 0.05). Conclusions: Silver nano-particles increased the serum T3 hormone level in male Wistar rats.

scholarly journals Some Effects of Crude Aqueous Extracts of Hibiscus sabdariffa Leaves on the Testes and Sperm Parameters of Adult Male Wistar Rats (Rattus norelegicus)

2019 ◽  
pp. 1-8
Author(s):  
A. Ashamu Ebenezer ◽  
A. Oyeniran David ◽  
T. Awora Koyinsola ◽  
O. T. Olayemi ◽  
O. Oyewo Olutoyi
Keyword(s):  
Body Weight ◽  
Adult Male ◽  
Wistar Rats ◽  
The Body ◽  
Male Rats ◽  
Control Group ◽  
Testis Weight ◽  
Hibiscus Sabdariffa ◽  
Male Wistar Rats ◽  
Group D

Hibiscus sabdariffa is a common garden plant native to warm-temperate, subtropical and tropical regions throughout the world, used in traditional medicine. It is mostly cultivated for its flowers. The calyces are used as a refrigerant in form of tea (especially in making the sorrel drink popularly known as ‘zobo’ in Nigeria), jellies and jam. Aim: This study evaluates the effects of aqueous leaves extract of Hibiscus sabdariffa on the body, testis weight, histology of the testes and sperm parameter of adult male Wistar rats. Methodology: Twenty-five adult male wistar rats of 10-12 weeks and weighing about 120-140g were divided into four groups (A, B, C and D) (five rats / group), Group A was kept as control and B, C, D were administered 250 mg, 500 mg, 1000 mg  of Hibiscus sabdarfia leaf extract per Kg body weight for 8 weeks. The rats in each group were fed with rat feed and water ad libitum. Administration was by means of an oral cannula. At the end of each experimental period, the rats were sacrificed by cervical dislocation, the testes were harvested and immediately fixed in Bouin’s fluid for histological procedure. However, as soon as the animals were sacrificed, the cauda epididymis was removed and semen analysis was carried out immediately. Results: There was a significant decrease in body weight of all the test groups at (P <0.05) and a significant decrease in the testes of the rats in group D when compared with the control group. Statistical analysis revealed decrease in sperm count, motility and viability with a significance decrease (P <0.05) in group D only as compared to control group. The histoarchitecture revealed significant degenerative changes characterized by vacuolization in the intestitium and seminiferous epithelium when compared with the control group. Conclusion: The aqueous leaves extract of Hibiscus sabdariffa appears to have adverse effects on the fertility of male rats especially when taken over a long period of time.

scholarly journals Amlodipine besylate impairs the morphology of bone marrow in adult male wistar rats

1970 ◽  
Vol 6 (2) ◽  
pp. 963-968
Author(s):  
AA Adelaja ◽  
OK Ghazali ◽  
LB Ayantunji ◽  
GO Omotoso
Keyword(s):  
Bone Marrow ◽  
Adult Male ◽  
Wistar Rats ◽  
Physiological Saline ◽  
Control Group ◽  
Amlodipine Besylate ◽  
Group I ◽  
Male Wistar Rats ◽  
Long Acting ◽  
Dose Dependent

Amlodipine is a long-acting calcium channel blocker used in the treatment of hypertension and angina. In adult man, the treatment regimen is 5 or 10 mg daily. This study evaluated the effects of prolonged oral administration of Amlodipine Besylate on the morphology of bone marrow in adult male Wistar rats. Sixteen rats (140 - 190 g) comprising of four groups were employed in the study. Rats of Control Group I received physiological saline orally while rats of Experimental Groups II - IV received oral administrations of 5, 10 and 15 mg/kg bodyweight of Amlodipine Besylate respectively for nine weeks. Histo-pathological examinations of the bone marrow showed normal cytoarchitecture of erythrocytes and leukocytes in rats of Control Group I. However, dose-dependent degeneration and lyses of erythrocytes and leukocytes were observed in amlodipine-treated rats. In conclusion, impaired morphology of the bone marrow were observed in amlodipine-treated adult male Wistar ratsKey words: Amlodipine Besylate, bone marrow, morphology, rats.

scholarly journals Anticarcinogenic effect of probiotic fermented milk and chlorophyllin on aflatoxin-B1-induced liver carcinogenesis in rats

2011 ◽  
Vol 107 (7) ◽  
pp. 1006-1016 ◽  
Author(s):  
M. Kumar ◽  
V. Verma ◽  
R. Nagpal ◽  
A. Kumar ◽  
P. V. Behare ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Lactobacillus Rhamnosus ◽  
Thiobarbituric Acid ◽  
Fermented Milk ◽  
Hepatoprotective Effect ◽  
Control Group ◽  
Time Interval ◽  
Group I ◽  
Male Wistar Rats ◽  
Aflatoxin B

The present investigation was carried out to evaluate the hepatoprotective effect of probiotic fermented milk (FM) containing Lactobacillus rhamnosus GG and Lactobacillus casei strain Shirota, alone as well as in combination with chlorophyllin (CHL) as an antioxidant agent in male Wistar rats administered aflatoxin-B1 (AFB1). AFB1 was injected intraperitoneally at the rate of 450 μg/kg body weight per animal twice a week for 6 weeks, maintaining an equal time interval between the two consecutive AFB1 administrations. A total of 125 male Wistar rats were randomly allocated to five groups, each group having twenty-five animals. Group I was offered FM containing L. rhamnosus GG and L. casei strain Shirota. Group II was administered AFB1 and served as the control group; group III was administered FM-AFB1, in which besides administering AFB1, FM was also offered. Group IV was offered CHL and AFB1, and group V was offered both FM and CHL along with AFB1. The rats were euthanised at the 15th and 25th week of the experiment and examined for the biochemical and hepatopathological profile. A significant reduction in thiobarbituric acid-reactive substances (TBARS) was observed in the FM–CHL–AFB1 group compared with the AFB1 control group. FM alone or in combination with CHL was found to show a significant (P < 0·05) hepatoprotective effect by lowering the levels of TBARS and by enhancing the activities of antioxidant enzymes such as glutathione peroxidase, superoxide dismutase, catalase and glutathione-S-transferase, indicating that probiotic FM alone or in combination with CHL possesses a potent protective effect against AFB1-induced hepatic damage.

Acute and subchronic co-administrations to cadmium, diazinon and selenium induce apparent osteoporotic symptoms in adult male rats

Biologia ◽  
2014 ◽  
Vol 69 (10) ◽  
Author(s):  
Hana Ďúranová ◽  
Monika Martiniaková ◽  
Ivana Boboňová ◽  
Radoslav Omelka ◽  
Robert Stawarz ◽  
...  
Keyword(s):  
Adult Male ◽  
Osteoporotic Fractures ◽  
Bone Diseases ◽  
Male Rats ◽  
Control Group ◽  
Femoral Bone ◽  
Negative Effects ◽  
Young Males ◽  
Male Wistar Rats ◽  
Group B

AbstractCadmium (Cd) and diazinon (DZN) are known to be environmental risk factors for various bone diseases including osteoporosis. Selenium (Se), an essential constituent of many antioxidant enzymes, has in higher concentrations negative effects on the bone. The present study was aimed to investigate possible changes in femoral bone of adult male rats after their acute and subchronic exposures to Cd, DZN and Se. A total of 30 male Wistar rats were randomized into three experimental groups. The rats in the group A (4-months-old) were injected intraperitoneally with a mixture of 2 mg CdCl2 kg−1, 20 mg DZN kg−1 and 2 mg Na2SeO3 kg−1 body weight and killed 36 h after xenobiotics had been injected. In the group B, young males (1-month-old) were administered with a combination of 30 mg CdCl2 L−1, 40 mg DZN L−1 and 5 mg Na2SeO3 L−1 in their drinking water, for 90 days. Ten 4-months-old males without toxicant supplementation served as a control group (C). After treatment period, detailed histological analysis of femoral bone was performed in each group. Our results revealed apparent osteoporotic symptoms (resorption lacunae, osteoporotic fractures) in rats from groups A and B. Moreover, histomorphometrical evaluation showed reduced bone vascularization (constricted primary osteons’ vascular canals and Haversian canals) and weakness mechanical properties of bones (smaller size of the secondary osteons) in these rats in comparison with those of the control group. Our study demonstrates for the first time that acute and subchronic co-administrations to Cd, DZN and Se induce evident manifestation characteristics of osteoporosis in male rats.

scholarly journals Upregulation of Kiss-1 and Gpr54 Genes Expression in Pituitary of Male Rats Following the Central Administration of Neuropeptide Y

2019 ◽  
Vol 4 (4) ◽  
pp. 137-142
Author(s):  
Vahid Azizi ◽  
Shahrbanoo Oryan ◽  
Homayuon Khazali ◽  
Abdolkarim Hosseini
Keyword(s):  
Gene Expression ◽  
Pituitary Gland ◽  
Neuropeptide Y ◽  
Wistar Rats ◽  
Third Ventricle ◽  
Male Rats ◽  
Control Group ◽  
Central Administration ◽  
Reproductive Axis ◽  
Male Wistar Rats

Introduction: The neuropeptide Y (NPY) in the neural circuits of the hypothalamus has a stimulating effect on reproductive activities in mammals. Kisspeptin (KiSS1) is a quintessential neurotransmitter in the reproductive axis which directly stimulates gonadotropin-releasing hormone neurons in the hypothalamus. The distribution of KiSS1 expressing cells in the pituitary was described previously. Despite earlier reports showing the KiSS1 receptor, G-protein coupled receptor 54 (GPR54) expression in the pituitary, the potential physiological roles of kisspeptin at this gland have remained obscure. Accordingly, this study investigated the role of NPY on the relative expression of Kiss1 and Gpr54 genes in the pituitary gland in male Wistar rats. Methods: In general, 20 male Wistar rats weighing 200-250 g in 4 groups (5 in each group) received saline, NPY (2.3 nM), BIBP3226 (NPY receptor antagonist, 7.8 nM), and NPY+ BIBP3226. Then, they received the simultaneous injection of these molecules through the third ventricle of the brain. Finally, the relative mean expressions of Kiss1 and Gpr54 genes in the anterior pituitary were quantitatively analyzed by the real-time polymerase chain reaction. Results: The central injection of NPY increased the relative mean expressions of Kiss1 and Gpr54 genes in the pituitary gland compared to the control group although the injection of BIBP3226 eradicated these effects. However, the gene expression of Gpr54 in the rats receiving NPY coupled with BIBP3226 in hypophysis in comparison to the group receiving only NPY demonstrated a significant reduction (P<0.05). Conclusion: Overall, the central injection of NPY stimulated the gene expression of Kiss1 and Gpr54 in the pituitary gland.

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