Hepatic lipid peroxidation and trace elements — nutritional status in streptozotocin-induced diabetic rats

1992 ◽  
Vol 31 (2) ◽  
pp. 103-109 ◽  
Author(s):  
A. Wachnik ◽  
G. Biró ◽  
L. Biró ◽  
A. Gergely ◽  
M. Antal
Keyword(s):  
Lipid Peroxidation ◽  
Trace Elements ◽  
Nutritional Status ◽  
Diabetic Rats ◽  
Hepatic Lipid ◽  
Hepatic Lipid Peroxidation

An aqueous extract fromMoringa oleiferaleaves ameliorates hepatotoxicity in alloxan-induced diabetic rats

2017 ◽  
Vol 95 (4) ◽  
pp. 524-530 ◽  
Author(s):  
Mabrouk Attia Abd Eldaim ◽  
Ahmed Shaban Abd Elrasoul ◽  
Samy Ahmed Abd Elaziz
Keyword(s):  
Gene Expression ◽  
Lipid Peroxidation ◽  
Aqueous Extract ◽  
Caspase 3 ◽  
Diabetic Rats ◽  
Control Group ◽  
Albino Rats ◽  
Hepatic Lipid ◽  
The Third ◽  
Hepatic Lipid Peroxidation

This study was carried out to evaluate the possible mechanisms through which an aqueous extract from MO leaves demonstrates hepatoprotective effects in alloxan-induced diabetic rats. Eighty albino rats were assigned to 4 groups. The control group was orally administered sterile saline. The second group was injected with alloxan (150 mg/kg body mass (b.m.)) by intraperitoneal injection (i.p.). The third group was given MO (250 mg/kg b.m.) orally, daily. The fourth group was injected with alloxan, as for the second group, and administrated an aqueous extract of MO leaves, as for the third group. Alloxan induced degenerative changes in hepatic and pancreatic tissues, increased hepatic lipid peroxidation, and increased gene expression of PC and caspase 3. However, it decreased the activities of hepatic SOD and CAT, and gene expression of GS. In contrast, the MO extract prevented changes to the histoarchitecture of hepatic and pancreatic tissues and normalized the reduced hepatic levels of glutathione, as well as the activities of SOD and CAT, and the gene expression of GS, while reducing blood glucose levels, hepatic lipid peroxidation, and the gene expression of PC and caspase 3. This study indicated that an aqueous extract of MO leaves can be a potent antioxidant and used as an hepatoprotective agent.

Effect of sex hormones on copper, zinc, iron nutritional status and hepatic lipid peroxidation in rats

Nahrung/Food ◽  
1993 ◽  
Vol 37 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Anna Wachnik ◽  
G. Biró ◽  
L. Biró ◽  
M. Korom ◽  
Anna Gergely ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Nutritional Status ◽  
Sex Hormones ◽  
Hepatic Lipid ◽  
Hepatic Lipid Peroxidation ◽  
Copper Zinc

scholarly journals Oxidative Stress in Rats After 60 Days of Hypergalactosemia or Hyperglycemia

2003 ◽  
Vol 22 (6) ◽  
pp. 423-427 ◽  
Author(s):  
Mary Otsyula ◽  
Matthew S. King ◽  
Tonya G. Ketcham ◽  
Ruth A. Sanders ◽  
John B. Watkins
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Superoxide Dismutase ◽  
Glutathione Peroxidase ◽  
Insulin Treatment ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Glutathione Disulfide ◽  
Hepatic Lipid Peroxidation ◽  
Streptozotocin Diabetic Rats

Two of the models used in current diabetes research include the hypergalactosemic rat and the hyperglucosemic, streptozotocin-induced diabetic rat. Few studies, however, have examined the concurrence of these two models regarding the effects of elevated hexoses on biomarkers of oxidative stress. This study compared the activities of superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase and the concentrations of glutathione, glutathione disulfide, and thiobarbituric acid reactants (as a measure of lipid peroxidation) in liver, kidney, and heart of Sprague-Dawley rats after 60 days of either a 50% galactose diet or insulin deficiency caused by streptozotocin injection. Most rats from both models developed bilateral cataracts. Blood glucose and glycosy-lated hemoglobin A1c concentrations were elevated in streptozotocin diabetic rats. Streptozotocin diabetic rats exhibited elevated activities of renal superoxide dismutase, cardiac catalase, and renal and cardiac glutathione peroxidase, as well as elevated hepatic lipid peroxidation. Insulin treatment of streptozotocin-induced diabetic rats normalized altered markers. In galactosemic rats, hepatic lipid peroxidation was increased whereas glutathione reductase activity was diminished. Glutathione levels in liver were decreased in diabetic rats but elevated in the galactosemic rats, whereas hepatic glutathione disulfide concentrations were decreased much more in diabetes than in galactosemia. Insulin treatment reversed/prevented all changes caused by streptozotocin-induced diabetes. Lack of concomitance in these data indicate that the 60-day galactose-fed rat is not experiencing the same oxidative stress as the streptozotocin diabetic rat, and that investigators must be cautious drawing conclusions regarding the concurrence of the effects of the two animal models on oxidative stress biomarkers.

scholarly journals Bariatric Surgery-Induced Weight Loss Reduces Hepatic Lipid Peroxidation Levels and Affects Hepatic Cytochrome P-450 Protein Content

2010 ◽  
Vol 251 (6) ◽  
pp. 1041-1048 ◽  
Author(s):  
Lauren N. Bell ◽  
Constance J. Temm ◽  
Rashmil Saxena ◽  
Raj Vuppalanchi ◽  
Philip Schauer ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Lipid Peroxidation ◽  
Weight Loss ◽  
Protein Content ◽  
Hepatic Lipid ◽  
Hepatic Lipid Peroxidation ◽  
Cytochrome P 450 ◽  
Hepatic Cytochrome

scholarly journals 4-HNE Immunohistochemistry and Image Analysis for Detection of Lipid Peroxidation in Human Liver Samples Using Vitamin E Treatment in NAFLD as a Proof of Concept

2020 ◽  
Vol 68 (9) ◽  
pp. 635-643 ◽  
Author(s):  
Maren C. Podszun ◽  
Joon-Yong Chung ◽  
Kris Ylaya ◽  
David E. Kleiner ◽  
Stephen M. Hewitt ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Image Analysis ◽  
Vitamin E ◽  
Dynamic Range ◽  
Clinical Diagnostics ◽  
Automated Image Analysis ◽  
Antioxidant Vitamin ◽  
Alcoholic Fatty Liver ◽  
Hepatic Lipid ◽  
Hepatic Lipid Peroxidation

Lipid peroxidation is a common feature of liver diseases, especially non-alcoholic fatty liver disease (NAFLD). There are limited validated tools to study intra-hepatic lipid peroxidation, especially for small specimen. We developed a semi-quantitative, fully automated immunohistochemistry assay for the detection of 4-hydroxynoneal (4-HNE) protein adducts, a marker of lipid peroxidation, for adaptation to clinical diagnostics and research. We used Hep G2 cells treated with 4-HNE to validate specificity, sensitivity, and dynamic range of the antibody. Staining and semi-quantitative automated readout were confirmed in human needle-biopsy liver samples from subjects with NAFLD and normal liver histology. The ability to detect changes in lipid peroxidation was tested in paired liver biopsies from NAFLD subjects, obtained before and after 4 weeks of treatment with the antioxidant vitamin E (ClinicalTrials.gov NCT01792115, n=21). The cellular calibrator was linear and NAFLD patients had significantly higher levels of 4-HNE adducts compared to controls ( p=0.02). Vitamin E treatment significantly decreased 4-HNE ( p=0.0002). Our findings demonstrate that 4-HNE quantification by immunohistochemistry and automated image analysis is feasible and able to detect changes in hepatic lipid peroxidation in clinical trials. This method can be applied to archival and fresh samples and should be considered for use in assessing NAFLD histology.

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