scholarly journals Chemopreventive Effect in HepG2 cells exposed to L. Reuteri with Antioxidant Supplements

2010 ◽  
Vol 24 (S1) ◽  
Author(s):  
Kevin M. Green ◽  
Salam Ibrahim ◽  
Minnie Holmes‐McNary
Keyword(s):  
Hepg2 Cells ◽  
Chemopreventive Effect ◽  
Antioxidant Supplements

Pouteria ramiflora (Mart.) Radlk. extract: Flavonoids quantification and chemopreventive effect on HepG2 cells

2018 ◽  
Vol 81 (16) ◽  
pp. 792-804 ◽  
Author(s):  
Katiuska Tuttis ◽  
Daryne Lu Maldonado Gomes da Costa ◽  
Higor Lopes Nunes ◽  
Ana Flávia Leal Specian ◽  
Juliana Mara Serpeloni ◽  
...  
Keyword(s):  
Hepg2 Cells ◽  
Chemopreventive Effect

scholarly journals Antioxidant Activity and Mechanism of Resveratrol and Polydatin Isolated from Mulberry (Morus alba L.)

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7574
Author(s):  
Ziwei Li ◽  
Xiaoman Chen ◽  
Guo Liu ◽  
Jun Li ◽  
Jinglin Zhang ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Hepg2 Cells ◽  
Senile Dementia ◽  
Blood Lipid ◽  
Morus Alba ◽  
Health Improvement ◽  
Sod Activity ◽  
Antioxidant Supplements ◽  
Mulberry Fruits ◽  
Stilbene Compounds

Natural stilbenes have unique physiological effects, such as anti-senile dementia, anti-cancer, anti-bacterial, lowering blood lipid, and other important biological functions, which have attracted great attention from scholars in recent years. In this study, two stilbene compounds, resveratrol (RES) and polydatin (PD), were isolated from Mulberry (Morus alba L.), and their antioxidant activity and mechanism were investigated. The results showed that the contents of RES and PD in mulberry roots were 32.45 and 3.15 μg/g, respectively, significantly higher than those in mulberry fruits (0.48 and 0.0020 μg/g) and mulberry branches (5.70 and 0.33 μg/g). Both RES and PD showed high antioxidant potential by DPPH, ABTS free-scavenging methods, and ORAC assay, and provided protection against oxidative damage in HepG2 cells by increased catalase (CAT) activity, superoxide dismutase (SOD) activity, and Glutathione (GSH) content, and decreasing generation of reactive oxygen species (ROS), lactate dehydrogenase (LDH) level, and malondialdehyde (MDA) content. Therefore, RES and PD treatment could be effective for attenuating AAPH-induced oxidative stress in HepG2 cells. This study will promote the development and application of stilbene compounds. Furthermore, the RES and PD could be used as antioxidant supplements in functional foods, cosmetics, or pharmaceuticals, contributing to health improvement.

Effects of Antioxidant Supplementation and Exercise Training on Erythrocyte Antioxidant Enzymes

2006 ◽  
Vol 76 (5) ◽  
pp. 324-331 ◽  
Author(s):  
Marsh ◽  
Laursen ◽  
Coombes
Keyword(s):  
Antioxidant Enzymes ◽  
Exercise Training ◽  
Endurance Training ◽  
Young Male ◽  
Antioxidant Defenses ◽  
Antioxidant Enzyme Activities ◽  
Antioxidant Supplementation ◽  
Male Wistar Rats ◽  
Exercise Induced ◽  
Antioxidant Supplements

Erythrocytes transport oxygen to tissues and exercise-induced oxidative stress increases erythrocyte damage and turnover. Increased use of antioxidant supplements may alter protective erythrocyte antioxidant mechanisms during training. Aim of study: To examine the effects of antioxidant supplementation (α-lipoic acid and α-tocopherol) and/or endurance training on the antioxidant defenses of erythrocytes. Methods: Young male Wistar rats were assigned to (1) sedentary; (2) sedentary and antioxidant-supplemented; (3) endurance-trained; or (4) endurance-trained and antioxidant-supplemented groups for 14 weeks. Erythrocyte superoxide dismutase (SOD), glutathione peroxidase (GPX), and catalase (CAT) activities, and plasma malondialdehyde (MDA) were then measured. Results: Antioxidant supplementation had no significant effect (p > 0.05) on activities of antioxidant enzymes in sedentary animals. Similarly, endurance training alone also had no effect (p > 0.05). GPX (125.9 ± 2.8 vs. 121.5 ± 3.0 U.gHb–1, p < 0.05) and CAT (6.1 ± 0.2 vs. 5.6 ± 0.2 U.mgHb–1, p < 0.05) activities were increased in supplemented trained animals compared to non-supplemented sedentary animals whereas SOD (61.8 ± 4.3 vs. 52.0 ± 5.2 U.mgHb–1, p < 0.05) activity was decreased. Plasma MDA was not different among groups (p > 0.05). Conclusions: In a rat model, the combination of exercise training and antioxidant supplementation increased antioxidant enzyme activities (GPX, CAT) compared with each individual intervention.

Linalool Effect on HepG2 cells: Structure Function Relation

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
J Usta ◽  
K Racha ◽  
K Boushra ◽  
S Shatha ◽  
B Yolla ◽  
...  
Keyword(s):  
Structure Function ◽  
Hepg2 Cells ◽  
Function Relation

Transcriptome analysis in HepG2 cells revealed multiple activity mechanisms of a Tibetan polyherbal formula

2012 ◽  
Vol 33 (S 01) ◽  
Author(s):  
K Becker ◽  
A Klein ◽  
OA Wrulich ◽  
P Gruber ◽  
D Fuchs ◽  
...  
Keyword(s):  
Transcriptome Analysis ◽  
Hepg2 Cells

Impact of soluble Endoglin on TGF-β1 mediated immediate early responses in HepG2 cells

2014 ◽  
Vol 52 (01) ◽  
Author(s):  
M Neß ◽  
SK Meurer ◽  
E Borkham-Kamphorst ◽  
R Weiskirchen
Keyword(s):  
Hepg2 Cells ◽  
Immediate Early ◽  
Soluble Endoglin ◽  
Tgf Β1

The Effects of Vitamin K1 and Warfarin on Prothrombin Expression in Human Hepatoblastoma (HepG2) Cells

1992 ◽  
Vol 68 (01) ◽  
pp. 040-047 ◽  
Author(s):  
C Scott Jamison ◽  
Bryan F Burkey ◽  
Sandra J Friezner Degen
Keyword(s):  
Total Protein ◽  
Hepg2 Cells ◽  
Enzyme Linked Immunosorbent Assay ◽  
Response Analysis ◽  
Secreted Protein ◽  
Mrna Levels ◽  
Vitamin K1 ◽  
Maximal Increase ◽  
Protein Levels ◽  
Warfarin Treatment

SummaryCultures of human hepatoblastoma (HepG2) cells were treated with vitamin K1 or warfarin and prothrombin antigen and mRNA levels were determined. With 3 and 6 h of 10 µg vitamin K1 treatment secreted prothrombin antigen levels, relative to total secreted protein levels, were increased 1.5-fold and 2.1-fold, respectively, over ethanol-treated control levels as determined by an enzyme-linked immunosorbent assay. Dose-response analysis with 3 h of 25 µg/ml vitamin K1 treatment demonstrated a maximal increase of 2.0-fold in secreted prothrombin antigen levels, relative to total secreted protein levels, over ethanol-treated control levels. Pulse-chase analysis with 35S-methionine and immunoprecipitation of 35S-labelled prothrombin demonstrated that, with vitamin K1 treatment (25 µg/ml, 3 h), the rate of prothrombin secretion increased approximately 2-fold and the total amount (intra- and extracellular) of prothrombin synthesized increased approximately 50% over ethanol-treated control levels. Warfarin treatment (1, 5, or 10 µg/ml, 24 h) resulted in decreases in secreted prothrombin antigen levels, relative to total protein levels to approximately 85%, 87% or 81% of ethanol-treated control levels. Analysis of total RNA isolated from these cultures by Northern and solution hybridization techniques demonstrated that prothrombin mRNA was approximately 2.1 kb and that neither vitamin K1 nor warfarin treatment affected the quantity of prothrombin mRNA (ranging from 240–350 prothrombin mRNA molecules per cell). These results demonstrate that vitamin K1 and warfarin, in addition to effects on γ-carboxylation, affect prothrombin synthesis post-transcriptionally, perhaps influencing translation, post-translational processing and/or secretion mechanisms.

SERPINA1 levels dictate TTR expression in HepG2 cells

2019 ◽  
Author(s):  
C Niemietz ◽  
S Guttmann ◽  
V Sandfort ◽  
H Schmidt
Keyword(s):  
Hepg2 Cells
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