scholarly journals Effect of Tranylcypromine on Spermatogenesis in Adult Male Rats

2019 ◽  
Vol 13 (1) ◽  
pp. 9-12
Author(s):  
Mahboobeh Gholamzadeh ◽  
◽  
Mehrdad Shariati ◽  
Davood Moghadamnia ◽  
◽  
...  
Keyword(s):  
Adult Male ◽  
Leydig Cells ◽  
Monoamine Oxidase Inhibitor ◽  
Oxidase Inhibitor ◽  
Male Rats ◽  
Control Group ◽  
Tissue Sections ◽  
Male Wistar Rats ◽  
Hematoxylin And Eosin ◽  
Spss Software

Background: Tranylcypromine is a monoamine oxidase inhibitor. It inhibits the breakdown of dopamine, serotonin, epinephrine and other monoamines. The aim of this study was to investigate the adverse effects of trarylcypromine on the spermatogenesis in adult male rats. Methods: In this study, 50 adults male Wistar rats, weighing 200-250g, were used and divided into 5 groups of 10. Control group that was not given the treatment; the sham group received normal saline as a solvent and the experimental groups 1, 2 and 3 received 10, 20 and 40 mg/kg of trarylcypromine orally for 21 days. At the end of the trial period, the testes of rats were removed, tissue sections were prepared, stained with hematoxylin and eosin, and the histological features were examined under light microscopy. The statistical analyses performed were ANOVA and Tukey tests, using SPSS software, version 19. Results: The results demonstrated that the number of spermatogonials, primary spermatocytes, spermatids and Leydig cells in the experimental groups 2 and 3 receiving tranylcypromine significantly decreased compared to those in the control group. However, the number of Sertoli cells in the experimental groups did not change significantly at any dose of the drug compared to those in the control group (P≤0.05). Conclusion: Tranylcypromine reduced spermatogenesis and the respective indices in rat testicular tissues.

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 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 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.

Chronic immobilization stress induces anxiety-related behaviors and affects brain essential minerals in male rats

2020 ◽  
pp. 1-8
Author(s):  
Zafer Sahin ◽  
Alpaslan Ozkurkculer ◽  
Omer Faruk Kalkan ◽  
Ahmet Ozkaya ◽  
Aynur Koc ◽  
...  
Keyword(s):  
Immobilization Stress ◽  
Central Area ◽  
Essential Elements ◽  
Male Rats ◽  
Control Group ◽  
Male Wistar Rats ◽  
Swimming Test ◽  
The Brain ◽  
Center Area ◽  
Chronic Immobilization Stress

Abstract. Alterations of essential elements in the brain are associated with the pathophysiology of many neuropsychiatric disorders. It is known that chronic/overwhelming stress may cause some anxiety and/or depression. We aimed to investigate the effects of two different chronic immobilization stress protocols on anxiety-related behaviors and brain minerals. Adult male Wistar rats were divided into 3 groups as follows ( n = 10/group): control, immobilization stress-1 (45 minutes daily for 7-day) and immobilization stress-2 (45 minutes twice a day for 7-day). Stress-related behaviors were evaluated by open field test and forced swimming test. In the immobilization stress-1 and immobilization stress-2 groups, percentage of time spent in the central area (6.38 ± 0.41% and 6.28 ± 1.03% respectively, p < 0.05) and rearing frequency (2.75 ± 0.41 and 3.85 ± 0.46, p < 0.01 and p < 0.05, respectively) were lower, latency to center area (49.11 ± 5.87 s and 44.92 ± 8.04 s, p < 0.01 and p < 0.01, respectively), were higher than the control group (8.65 ± 0.49%, 5.37 ± 0.44 and 15.3 ± 3.32 s, respectively). In the immobilization stress-1 group, zinc (12.65 ± 0.1 ppm, p < 0.001), magnesium (170.4 ± 1.7 ppm, p < 0.005) and phosphate (2.76 ± 0.1 ppm, p < 0.05) levels were lower than the control group (13.87 ± 0.16 ppm, 179.31 ± 1.87 ppm and 3.11 ± 0.06 ppm, respectively). In the immobilization stress-2 group, magnesium (171.56 ± 1.87 ppm, p < 0.05), phosphate (2.44 ± 0.07 ppm, p < 0.001) levels were lower, and manganese (373.68 ± 5.76 ppb, p < 0.001) and copper (2.79 ± 0.15 ppm, p < 0.05) levels were higher than the control group (179.31 ± 1.87 ppm, 3.11 ± 0.06 ppm, 327.25 ± 8.35 ppb and 2.45 ± 0.05 ppm, respectively). Our results indicated that 7-day chronic immobilization stress increased anxiety-related behaviors in both stress groups. Zinc, magnesium, phosphate, copper and manganese levels were affected in the brain.

Attenuation of Morphine-Induced Tolerance and Dependence by Pretreatment with Cerebrolysin in Male rats

Drug Research ◽  
2017 ◽  
Vol 68 (01) ◽  
pp. 33-37 ◽  
Author(s):  
Hamed Ghavimi ◽  
Sara Darvishi ◽  
Saeed Ghanbarzadeh
Keyword(s):  
Male Rats ◽  
Control Group ◽  
Tail Flick ◽  
Tail Flick Test ◽  
Attenuation Effect ◽  
Morphine Administration ◽  
Male Wistar Rats ◽  
Potent Growth ◽  
Induced Tolerance ◽  
Withdrawal Signs

Abstract Background Dependence and tolerance to morphine are major problems which limit its chronic clinical application. Purpose This study was aimed to investigate the attenuation effect of Cerebrolysin, a mixture of potent growth factors (BDNF, GDNF, NGF, CNTF etc,), on the development of Morphine-induced dependence and tolerance. Methods Male Wistar rats were selected randomly and divided into different groups (n=8) including: a control group, groups received additive doses of morphine (5–25 mg/kg, ip, at an interval of 12 h until tolerance completion), and groups pretreated with Cerebrolysin (40, 80 and 160 mg/kg, ip, before morphine administration). Development of tolerance was assessed by tail-flick test and the attenuation effect of Cerebrolysin on morphine-induced dependence was evaluated after injection of naloxone (4 mg/kg, ip, 12 h after the morning dose of morphine). Seven distinct withdrawal signs including: jumping, rearing, genital grooming, abdominal writhing, wet dog shake and teeth grinding were recorded for 45 min and total withdrawal score (TWS) was calculated. Results Results showed that administration of Cerebrolysin could prolonged development (10 and 14 days in administration of 80 mg/kg and 160 mg/kg Cerebrolysin) and completion (4, 10 and 14 days in administration of 40, 80 and 160 mg/kg Cerebrolysin, respectively) of tolerance. Results also indicated that administration of Cerebrolysin (40, 80 and 160 mg/kg) could significantly decreased the TWS value (62±2, 77±4 and 85±6%, respectively). Conclusion In conclusion, it was found that pretreatment with Cerebrolysin could attenuated morphine-induced tolerance and dependence.

Insulin secretion in Walker 256 tumor cachexia

1990 ◽  
Vol 258 (6) ◽  
pp. E1033-E1036 ◽  
Author(s):  
L. C. Fernandes ◽  
U. F. Machado ◽  
C. R. Nogueira ◽  
A. R. Carpinelli ◽  
R. Curi
Keyword(s):  
Insulin Secretion ◽  
Islets Of Langerhans ◽  
Adult Male ◽  
Male Rats ◽  
Control Group ◽  
Tumor Bearing ◽  
Isolated Islets Of Langerhans ◽  
Outflow Rate ◽  
Walker 256 ◽  
Walker 256 Tumor

The effect of cachexia on insulin secretion was examined in adult male rats. Isolated islets of Langerhans from Walker 256 tumor-bearing rats secreted less insulin by glucose stimuli as compared with the control group; this was accompanied by significant change in 45Ca2+ outflow rate. Reduced insulin secretion to glucose stimuli in tumor-bearing rats probably led to low insulinemia (one-third). These findings indicate that reduced insulin secretion is probably an important factor for the development of cachexia in Walker 256 tumor-bearing rats.

Dietary fat and adiposity: a dose-response relationship in adult male rats fed isocalorically

1995 ◽  
Vol 268 (4) ◽  
pp. E546-E550 ◽  
Author(s):  
C. N. Boozer ◽  
G. Schoenbach ◽  
R. L. Atkinson
Keyword(s):  
Body Weight ◽  
Body Fat ◽  
Adult Male ◽  
Dietary Fat ◽  
Male Rats ◽  
Control Group ◽  
Low Fat Diet ◽  
Mesenteric Fat ◽  
Total Body Fat ◽  
Total Body

This study examined the effects of increasing levels of dietary fat fed isocalorically on body weight, body composition, and adipose distribution. Adult male rats were weight matched into four groups. One group that was fed a low-fat diet (12%) served as reference controls. The other three groups were fed diets of 24, 36, or 48% fat in amounts to equal the energy intake of the control group. After 6 wk, body weights of the four groups were not significantly different. Intrascapular brown fat did not differ between groups. Total body fat and adipose depot weights, however, increased in proportion to the level of fat in the diet. Total body fat and retroperitoneal and mesenteric depot weights of the 48% fat group were greater than controls (P < 0.05). Mesenteric fat in this group was also significantly increased over all other groups (P < 0.05). These results show that high-fat diets fed to adult animals cause increased body fat in the absence of significant changes in body weight and that mesenteric fat is increased disproportionately.

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 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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