Evaluation of time passed since death by examination of oxidative stress markers, histopathological, and molecular changes of major organs in male albino rats

2020 ◽  
Vol 135 (1) ◽  
pp. 269-280
Author(s):  
Nermeen N. Welson ◽  
Shereen S. Gaber ◽  
Gaber El-Saber Batiha ◽  
Sabreen Mahmoud Ahmed
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.


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

2021 ◽  
Vol 14 (1) ◽  
pp. 31-37
Author(s):  
N.S. Sadi ◽  
S.M. Abubakar ◽  
A. Ibrahim ◽  
A.M. Umar ◽  
A.M. Gadanya ◽  
...  

Tamarind tree is a multipurpose tree of which almost every part finds at least some use, either nutritional or medicinal. Due to its pleasant acidic taste and rich aroma, the pulp is widely used for domestic and industrial purpose. A study was carried out to evaluate the effect of Tamarind juice intake in CCl4 induced oxidative stress albino rats. The Proximate, antinutrient, and Phytochemical contents of tamarind juice were analyzed using standard AOAC methods while mineral contents were determined using atomic absorption spectrometry. Oxidative stress markers were also analyzed using colorimetric assay kit. The serum levels of oxidative stress markers were compared between the normal and test groups. Experimental rats were divided into five groups: Normal control group, negative control (CCl4) group, standard drug (Vitamin C) group, tamarind low and high dose group. At the end of the experiment, significant increase in malondialdehyde level and decrease in superoxide dismutase, catalase, reduced glutathione and glutathione Peroxidase activities were recorded in CCl4-exposed rats as compared to normal control group. In the tamarind supplemented groups, the level of MDA along with the activities of SOD, CAT, GSH and GPx were comparable with the normal control rats (p>0.05). Thus, it appears that tamarind juice ameliorate the effect of CCl4; suggesting that consumption of natural compounds with an antioxidant profile may be a preventive alternative to those diseases associated with oxidative stress.


2019 ◽  
Vol 9 (1) ◽  
pp. 46-51
Author(s):  
Ifemeje J C ◽  
Ezeonyemalu U E ◽  
Chukwuebuka Egbuna ◽  
Olisah M C ◽  
Ifemeje M O

This work investigated the effects of food additives on the oxidative stress markers and liver marker enzymes. Food additives are products added to the basic food stuff with an aim of improving its flavor, aspect, texture, color, taste, and value. Thirty (30) Wistar rats were divided into five groups of six rats each. Group A received a daily dose of distillated water and normal rat pellet, Group B, C, D and E received 20 mg/kg body of Aspartame, Sodium Benzoate, Sodium nitrite and sodium sulfite respectively. The duration for exposure of these animals to food additives was 30 days and the groups were observed daily for general conditions. At the end of feeding the animals, blood samples were collected and analyzed. The result of the analysis showed that ALT significantly (p<0.05) increased with sodium nitrite and sodium sulfite while ALP increased significantly (p<0.05) with sodium sulphite. The oxidative stress biomarker, catalase showed a significant increase with sodium benzoate and sodium sulphite. The results revealed that the food additives are injurious to the animals. The toxicity of the food additives studied at 20 mg/kg are in the order of Sodium nitrite > Sodium benzoate > Sodium sulphite > Aspartame.


Author(s):  
SURENDRA BABU THANGACHI ◽  
VARSHA SRIRAM MOKHASI ◽  
AGA AMMAR MURTHUZA

Objective: The study was intended to explore whether Monosodium glutamate (MSG) induces oxidative stress on the liver of Wistar albino rats when fed chronically at three different doses, namely, low, mid, and high doses identical to human consumption doses in growing countries. Methods: The acclimatized Wistar albino rats (n=24) were randomly selected and grouped into four groups, namely Control, Low dose MSG (180 mg kg), Mid dose MSG (360 mg/kg), and High dose MSG (720 mg/kg). The animals were orally administered MSG for 120 days. After completion of the experimental period (120 days), euthanized animal liver was homogenized to investigate the oxidative stress marker enzymes such as Superoxide Dismutase (SOD), Glutathione Peroxidase (GPx), Catalase (CAT), and Myeloperoxidase (MPO). Results: The MPO showed a significant increase (p<0.05) in liver homogenate of all MSG induced groups when compared to control group. The SOD, CAT, and GPx activity deteriorated (p<0.05) in monosodium induced groups contrasting to the control group. Conclusion: The effects of MSG on oxidative stress markers on liver homogenate in the current study exhibited erratic abnormal changes in oxidative stress markers of monosodium induced groups which contemplate the harmful effects of MSG consumed chronically. The further studies should confirm the genetic basis of oxidative stress damage and transform the safety regulations of MSG consumption throughout the world.


Author(s):  
Reveka Gyftaki ◽  
Sofia Gougoura ◽  
Nikolaos Kalogeris ◽  
Vasiliki Loi ◽  
George Koukoulis ◽  
...  

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