CCl4-induced Oxidative Stress In Rats Research Articles

Antioxidative potential and ameliorative effects of green lentil (Lens culinaris M.) sprouts against CCl4-induced oxidative stress in rats.

The present study is aimed to investigate the antioxidative potential and ameliorative effects of Lens culinaris Medikus sprouts hydroalcoholic extract (LSHE) on CCl4-induced oxidative stress in rats. The research has been carried out in two successive stages. Firstly, the highest phenolic content and antioxidant activity of L. culinaris sprouts were assessed at 20 ± 1°C and 90-93% RH during sprouting. Total phenolic content (TPC), total carotenoids (TC), total flavonoids (TF), total flavonols (TFL), DPPH-RSA, and vitamin C contents of L. culinaris seeds and 6-days sprouts were determined. Subsequently, phenolics by HPLC analysis of L. culinaris seeds, 3rd and 6th-day sprouts were identified and quantified. Results indicated that 6th-day sprouts contained considerable phenolics with superior antioxidant capacity, thus selected to be examined for biological activity in a rat's module consisting of five groups. G1, normal rats orally received distilled water. G2 received 1.0 mL kg-1 of CCl4 and olive oil (1:1) intraperitoneally (i.p.) twice a week. G3 received CCl4 (i.p.) and 50 mg GAE kg-1 of LSHE daily/orally. G4 received CCl4 (i.p.) 100 mg kg-1 of LSHE orally/daily. G5 (reference group) treated by intramuscular injection (i.m.) of vit. E+Selenium (Vit. E+Se, 50 mg kg-1 twice a week). The weight gain, relative weight of organs, hypoglycemic and hypolipidemic efficiencies, liver's and kidneys' functions, and antioxidant biomarkers were examined. LSHE enhanced the weight gain recovery % and significantly reduced fasting blood glucose. The hypolipidemic effect of LSHE was dramatically reduced triglycerides (TG), total cholesterol (CHO), high- and low-density lipoproteins (HDL-c and LDL-c), and very-low-density lipoproteins (VLDL-c). Administration of 50 and 100 LSHE mg kg-1 ameliorated liver and kidney function in dose-dependent manure. Intriguingly, LSHE considerably reduced malondialdehyde (MDA) while significantly raising reduced glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) in a dose-dependent manner. In conclusion, biochemical examinations confirmed the therapeutic efficacy of LSHE as a functional product. It encouraged us to recommend L. culinaris sprout production for attenuating hepatotoxicity and nephrotoxicity, as well as being beneficial and profitable for controlling oxidative stress complications.

Phenolic Profile, Antioxidant Activity, and Ameliorating Efficacy of Chenopodium quinoa Sprouts against CCl4-Induced Oxidative Stress in Rats.

Quinoa (Chenopodium quinoa) is classified as one of the pseudo-cereal grains rich in both macronutrients and micronutrients. This study tracks changes in the polyphenol composition of red quinoa (RQ) and yellow quinoa (YQ) seeds during germination. The antioxidant bioactivity of raw and germinated seed was also determined in vitro. Phenolic acids and their derivatives and flavonoids were identified by using HPLC-DAD and quantified after 0, 3, and 6 days of germination. Subsequently, the extracts of 6-day-old quinoa sprouts were prepared to biologically evaluate their functional properties against CCl4-induced oxidative stress in rats. The results indicated that antioxidant activity (AOA) of total phenolic compounds (TPC), and flavonoids significantly increased in RQ and YQ sprouts during germination up to 9 days. RQ sprouts exhibited stronger bioactive compound diversity than YQ sprouts as observed in HPLC analysis. Among the 11 and 8 quantified polyphenols, ferulic acid and quercetin were predominant phenolic acid and flavonoid in RQ and YQ sprouts, respectively. After 6 days of germination, 16 and 8 polyphenols were detected and quantified in RQ and YQ sprouts, respectively. Interestingly, the treatment of rats at a dose of 30 mg of Gallic acid Equivalent (GAE) kg−1 significantly reduced fasting blood glucose (FBG), alanine aminotransferase (ALT), aspartate aminotransferase AST, and total bilirubin (TIBIL) and improved liver inflammation. Furthermore, RQ and YQ sprouts improved the blood profile by significantly decreasing low-density lipoproteins (LDL) and very low-density lipoproteins (VLDL) and increasing high-density lipoproteins (HDL). Moreover, RQ and YQ sprout extracts significantly reduced malonaldehyde (MDA) and efficiently enhanced the reduced glutathione (GSH) and superoxide dismutase (SOD) activities in oxidative stress-induced rats as compared to CCl4-rats. In conclusion, red quinoa sprouts (RQS) and yellow quinoa sprouts (YQS) provide naturally synthesized polyphenols, possessing superior antioxidant activity, and their ethanolic extracts have promising effects and potential health benefits to counter induced oxidative stress. Incorporating quinoa sprouts as functional food ingredients should be considered and scaling-up its production is beneficial.

Determination of Tissue Protective and Antioxidant Activities of Two Medicinal Mushrooms from Turkey against CCl4-lnduced Experimental Oxidative Stress in Rats.

This study aimed at determining hepatoprotective and antioxidants effects of Lactarius deliciosus and Agrocybe cylindracea against CCl4-induced oxidative stress (OS) in rats. Herein, 36 rats were divided into 6 groups: (I) Control, (II) CCl4, (III) CCl4 + L. deliciosus, (IV) L. deliciosus, (V) CCl4 + A. cylindracea, and (VI) A. cylindracea. According to the 7-week study results, aspartate aminotransferase (AST), alanine aminotransferase (ALT), glutathione S-transferase (GST) (brain), superoxide dismutase (SOD) (kidney), malondialdehyde (MDA) (kidney), MDA (spleen), MDA (erythrocyte), GST (erythrocyte), and GST (liver) in group III (at 10%, 26%, 34%, 57%, 7%, 25%, 42%, 27%, and 35%, respectively) were significantly lower than in group II. Moreover, the reduced glutathione (GSH) (spleen) and catalase (spleen) in group III (at 20% and 38%, respectively) were significantly higher than in group II. AST, ALT, triglyceride, glutathione reductase (GR) (brain), GR (kidney), SOD (spleen), and SOD (liver) in group V (at 194%, 147%, 38%, 36%, 66%, 8%, and 7%, respectively) were significantly higher than in group II. However, MDA (kidney), MDA (erythrocyte), (GSH) (erythrocyte), MDA (liver), GSH (liver), and GST (liver) in group V (at 48%, 35%, 34%, 15%, 30%, and 41%, respectively) were significantly lower than in group II. Hence, while L. deliciosus may exhibit tissue-protective against CCl4-induced OS in rats, A. cylindracea does not.

Protective Effects of Ammannia baccifera Against CCl4-Induced Oxidative Stress in Rats.

Ammannia baccifera Linn. is commonly used as a traditional medicine in India and China. The antioxidant potential of an ethanolic extract of A. baccifera (EEAB; 250 mg/kg and 500 mg/kg) was evaluated against CCL4-induced toxicity in rats. Antioxidant activity was assessed by measuring the enzymatic and non-enzymatic antioxidants. Phytochemical constituents of EEAB were also analyzed by using UHPLC-QTOF-MS. EEAB treatment markedly reduced CCl4 effects on lipid peroxidation, cholesterol, triacylglycerides, and protein carbonyls. It increased the levels of phospholipids, total sulfhydryl, and antioxidant enzymes, which were reduced by CCl4 intoxication. Treatment with EEAB significantly alleviated the CCl4 effect on non-enzymatic antioxidants. Isoenzyme pattern analyses revealed that significant alterations in superoxide dismutase (SOD1), glutathione peroxidase (GPx2, GPx3), and catalase (CAT) occurred in rats that were exposed to CCl4 and restored post EEAB treatment. Moreover, CCl4-induced down regulation of SOD, CAT, and GPx gene expression was conversely counteracted by EEAB. Its bioactivity may be due to its incorporation of major compounds, such as chlorogenic acid, quercetin, protocatechuic acid, lamioside, crocetin, and khayasin C. These results suggest that EEAB may be used as a potent antioxidant and hepatoprotective agent since it is a rich source of flavonoids and phenolic compounds.

Essential oil from halophyte Lobularia maritima: protective effects against CCl4-induced hepatic oxidative damage in rats and inhibition of the production of proinflammatory gene expression by lipopolysaccharide-stimulated RAW 264.7 macrophages.

The present study evaluates the chemical profiling of the essential oil of a halophyte, L. maritima (LmEO), and its protective potential against CCl4-induced oxidative stress in rats. Forty compounds have been identified in LmEO. The major components are α-pinene (3.51%), benzyl alcohol (8.65%), linalool (22.43%), pulegone (3.33%), 1-phenyl butanone (7.33%), globulol (4.32%), γ-terpinene (6.15%), terpinen-4-ol (4.31%), α-terpineol (3.9%), ledol (3.59%), epi-α-cadinol (3.05%) and α-cadinol (4.91%). In comparison with the CCl4-intoxicated group, LmEO treatment resulted in decreased liver serum marker enzymes, decreased lipid peroxidation and increased antioxidant enzyme levels, with overall further amelioration of oxidative stress. The administration of LmEO to CCl4-treated rats at a dose of 250 mg kg−1 body weight significantly reduced the toxic effects and the oxidative stress on the liver, thus validating the traditional medicinal claim of this plant. Moreover, the anti-inflammatory activity of LmEO was evaluated in lipopolysaccharide-stimulated murine RAW 264.7 cells. Our oil could modulate the inflammatory mode of the macrophages by causing reduction in iNOS and COX2 enzymes as well as in IL-1β, IL-6, and TNF-α cytokine levels. These findings suggest that LmEO exerts anti-inflammatory effects by regulating the expression of inflammatory cytokines.

Antioxidant and Hepatoprotective Effects of Dried Flower Extracts of Hibiscus sabdariffa L. on Rats Treated with Carbon Tetrachloride

The hypolipidemic, antioxidative and hepatoprotective activities of 200 and 300mg/kg body weight ethanolic extract of dried flower of Hibiscus sabdariffa L. (HSE) were assessed in rats treated with 0.25ml/kg body weight (intraperitoneally) of carbon tetrachloride (CCl4). Hepatic malondialdehyde (MDA), serum lipid profile, serum vitamins A, C and βcarotene, alanine transaminase (ALT), aspartate transaminase (AST) and alkaline phosphatase (ALP) activities were measured. The oral administration of the extracts showed a significant (P<0.05) dose-dependent decrease in the CCl4- induced MDA formation in liver. Also HSE pretreatment, showed a significant increase in HDL-C concentration and decrease in the levels of total cholesterol, LDL-C and TG as compared to control. The levels of vitamins A, C, and βcarotene were shown to be significantly (P<0.05) decreased and increased respectively in CCl4 and HSE treated groups when compared with the control. The increase in the levels of these vitamins might not be unconnected with the antioxidant properties possessed by the extract. The extract also displayed a strong hepatoprotective effect as it significantly reduced CCl4induced hepatotoxicity in rats, as judged from the serum activities of ALT, AST, and ALP. These results suggest that the ethanolic extract of dried flower of Hibiscus sabdariffa L. possesses antioxidant, hepatoprotective and hypolipidemic effects on CCl4-induced oxidative stress in rats.

Absorption of andrographolides from Andrographis paniculata and its effect on CCl4-induced oxidative stress in rats

A simple and validated high-performance liquid chromatography (HPLC) method with UV detection has been used to determine the content of andrographolide (AP) and 14-deoxy-11,12-didehydroandrographolide (DIAP) in rat plasma after oral dose of methanol extract (1g/kg body weight) of Andrographis paniculata leaf. An increase in plasma concentration of AP and DIAP was observed from 30min to 3h after oral administration of the extract. The maximum plasma concentrations of AP and DIAP were 1.42±0.09μg/ml and 1.31±0.04μg/ml, respectively. Fourteen days oral treatment of rats with the methanol extract (1g/kg body weight) followed by CCl4 administration preserved catalase (CAT), and superoxide dismutase (SOD) activities in erythrocytes, whereas plasma lipid peroxidation, alanine transaminase (ALT) and aspartate transaminase (AST) activities were restored to values comparable with control values. Treatment of rats with CCl4 did not showed significant alteration (p>0.05) in plasma total antioxidant status (TAS) as compare to values of control group.