Influences of Torture by Immobilization andStarvation on Oxidative Stress Markers , DNA Damage and Cellular Changes in Differnt Organs of Albino Rats

2012 ◽  
Vol 12 (1) ◽  
pp. 1-12
Author(s):  
Naira F. Girgis ◽  
Samia S. Sokar ◽  
Hala M. Elharoun
2021 ◽  
Vol 10 (4) ◽  
pp. 468-475
Author(s):  
Sradhasini Rout ◽  
Bandana Rath ◽  
Subrat Kumar Bhattamisra ◽  
Anjan Kumar ◽  
Ishani Rath ◽  
...  

Introduction: The pathogenesis of Parkinson’s disease (PD) is multifactorial in which oxidative stress, neuroinflammation, and mitochondrial dysfunction are the leading factors. Currently, the antioxidant and anti-inflammatory agents of natural sources as neuroprotectants have raised much attention. The current study aimed to explore the neuroprotective effect of methanolic extract of Sargassum wightii in male Wistar albino rats against rotenone-induced PD. Methods: The rats were administered with rotenone (10 mg/kg orally) daily for 28 days to induce PD. S. wightii (200 mg/kg and 400 mg/kg) and levodopa+carbidopa combination (10 mg/kg) were administered to different groups of rats one hour prior to rotenone for 28 days. Behavioral parameters (akinesia, tremor, motor coordination, and locomotor activities) and body weight were recorded on days 14th and 28th of drug treatment. On the 28th day, the animals were sacrificed for the neurobiochemical analyses of brain tissue. Results: Rotenone treatment caused a significant reduction in behavioural parameters (P < 0.001), neurochemical deficits (P < 0.001), and elevation of oxidative stress markers (P < 0.001) in the brain. Pre-treatment with S. wightii at 200 mg/kg and 400 mg/kg doses significantly attenuated the rotenone-induced behavioral alterations and restored the mitochondrial NADH dehydrogenase activity and dopamine level in the striatum (P < 0.001). Moreover, 400 mg/kg of S. wightii restored the rotenone-induced increased oxidative stress markers like malondialdehyde (MDA), superoxide dismutase (SOD), and reduced glutathione (GSH) in the striatum (P < 0.01). Conclusion: S. wightii has provided a neuroprotective effect, probably by virtue of its antioxidant and dopamine restoring potential. Hence, it may offer a promising and new therapeutic lead for the treatment of PD but needs further research.


2020 ◽  
Vol 9 (1) ◽  
pp. 33-37
Author(s):  
Elias Adikwu ◽  
Ben Ehigiator

Impairment in testicular function can occur through perturbations in testicular oxidative stress markers and histology. Xylopia aethiopica (XE) is used to enhance fertility in males, but with information gap on its effect on testicular oxidative stress markers and histology. The present study assessed the effects of ethanolic stem bark extract of Xylopia aethiopica (EEXA) on testicular oxidative stress markers and histology of male albino rats. Sixty adult male albino rats (200g-250g) were randomly grouped into 4 (A-D) of 15 rats per group. The rats in the control group A (A1-A3) were administered per oral (p.o) with water (0.2 mL/day) for 15, 30 and 60 days respectively. The rats in groups B (B1-B3), C(C1-C3) and D (D1-D3) were administered p.o with EEXA (200, 400 and 800 mg/kg/day) for 15, 30 and 60 days respectively. The rats were anesthetized at the termination of EEXA administration and were dissected and testes removed. The testes were weighed and evaluated for oxidative stress markers and histology. Testicular weights were decreased in a dose and-time dependent fashion in EEXA-treated rats. Significant decreases in testicular superoxide dismutase, glutathione, catalase, and glutathione peroxidase levels with significant increases in malondialdehyde levels in a dose and time-dependent fashion were observed in rats administered with EEXA. Testicular histology showed cellular necrosis, degeneration and loss of interstitial tissues in rats administered with EEXA. This study observed that EEXA perturbed testicular oxidative markers and histology. Its use may impair testicular function.


Author(s):  
F. K. Uwikor ◽  
E. O. Nwachuku ◽  
F. Igwe ◽  
E. S. Bartimaeus

Hypoestes rosea has been used as a traditional medicine in the Niger delta for dysfunction of the endocrine system. However, there has been no known study on the effects of hypoestes rosea on oxidative stress. In this study we evaluated the effect of aqueous extract of Hypoestes rosea (AEHR) leaf on oxidative stress markers of lead acetate induced male and female albino rats at acute and sub-chronic stages in pre-treatment and post-treatment phases. Animals were divided into 17 groups of five each for both sexes in the treatment groups, while the positive control group had 10 animals in each sex. 8 groups were for the acute phase of the study for 21 days in each sex, while 8 were for 35 days for the sub chronic stage of the study. Negative Control (NC) group received rat feed only, Experimental (EC) group received 100 mg/kg bwt/day for 21 days at acute and 35 days for sub chronic.  Positive Control (PC) group received 60mg/kg b.wt per day of lead acetate for 35 days. The other 3 groups received 100 mgkg, 200 mg/kg and 300 mg/kg b. wt respectively for 14 and 28 days either as pre treatment or post treatment, for both sexes of the albino rats. Samples were taken at the end of the study period through the jugular vein under chloroform anaesthesia. Results showed lead acetate induced oxidative stress in the rats, evidenced by the significantly decreased (p < 0.05) Superoxide Dismutase (SOD) and Total Antioxidant Capacity (TAC) between the NC and PC groups. The plant in a dose dependent pattern was able to significantly (p < 0.05), reverse the effect of lead acetate in the Post and pre treatment phases. Our study also shows that dose dependent AEHR extract significantly reduced the impact of lead in oxidative stress markers. In conclusion, consumption of AEHR by albino rats could help protect against lead acetate induced oxidative stress.


2020 ◽  
Vol 5 (3) ◽  
pp. 7-15
Author(s):  
Agbor Cyril Abang ◽  
Anyanwu G. E

Local Nigerian men have been using AuriculariaPolytricha as a treatment for sexual dysfunction without supporting evidence from scientific experiments. This study was to investigate the effect of ethanolic extract of A. Polytricha on testicular DNA expression and some oxidative stress markers using STZ-Induced diabetic rats as a model. The experiment included six groups, Group A (Normal Control, treated with normal saline), Group B (treated with 65mg/kg.bw of STZ), Groups C, D, and E (treated with 250mg/kg.bw, 500mg/kg.bw, 1000mg/kg.bw AP after inducing diabetics), and Group F (treated with 40mg/kg.bw metformin after inducing diabetics). The experiment lasted for 35 days. After termination of the experiment, Fuelgen nuclear reaction was used for DNA demonstration to assess testicular DNA distribution while serum Superoxide Dimutase (SOD), Catalase and Melondialdehyde where evaluated using reagent based antioxidant enzyme assay. Results reveals that SOD and Melondialdehyde activities were remarkably (p<0.05) higher in diabetic control animals when compared with the normal control group. Values in Groups C, D and F that were administered with 250, 500mg/kg.bw A. polytricha and metformin respectively were also significantly (p<0.05) increased when compared with the normal control group. However, diabetic animals placed on 1000mg/kg.bw A. polytrichadid not show any statistical significance in comparison with normal control group but was remarkably (p<0.01) decreased when compared to the diabetic group that received low dose A. polytricha, an indication that the reversal is dose dependent. Catalase concentration in diabetic control animals was remarkably (p<0.05) higher when compared to the normal control but was not significantly (p<0.05) different in groups D (DM+500mg/kg.bw A. polytricha) and E (DM+1000mg/kg.bw A. polytricha) when compared with the normal control group. Diabetic control animals showed reduced magenta colour intensity of DNA and increased clustering and cross linking of DNA strands when compared with the normal control. However the degree of cross link in DNA strands was reduced in the diabetic animals placed on 1000mg/kg.bw A. polytrichawhen compared with the diabetic control group. Reversal in DNA damage and values of serum oxidative stress markers following administration of graded doses of A. polytricha could be attributed to essential phytochemical and therapeutic constituents in A. polytricha like polyphenol and flavonoid which can be found useful in prevention and treatment of diabetes induced testicular dysfunction. In summary, AP can contribute to a reversal in DNA damage and levels of serum oxidative stress markers in treating diabetes-induced testicular dysfunction.


2020 ◽  
Vol 121 (05) ◽  
pp. 325-330
Author(s):  
T. Devrim ◽  
H. Ekici ◽  
A. K. Devrim ◽  
M. Sozmen ◽  
A. Senol ◽  
...  

2015 ◽  
Vol 8 (6) ◽  
pp. 1-11
Author(s):  
Seena Pandarekandy ◽  
Sneha Kannamparathazhathethil ◽  
Rahmath Abdulrahiman ◽  
Ahammed Shahal ◽  
Surya Subrahmanyan ◽  
...  

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