Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil

Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil

Activation of endothelial cells (ECs) occurs early in atherogenesis leading to increased pro-inflammatory environment in the vessels. Oxidative stress also has been linked to atherogenesis, by promoting inflammatory environment and reduced nitric oxide availability in endothelium. Theaflavins rich f...

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Main Author: Awang Jalil, Remee
Format: Thesis
Language:English
Published: 2016
Online Access:http://ir.uitm.edu.my/id/eprint/17794/
http://ir.uitm.edu.my/id/eprint/17794/2/TM_REMEE%20AWANG%20JALIL%20MD%2016_5.pdf
id uitm-17794
recordtype eprints
spelling uitm-177942018-09-27T01:05:51Z http://ir.uitm.edu.my/id/eprint/17794/ Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil Awang Jalil, Remee Activation of endothelial cells (ECs) occurs early in atherogenesis leading to increased pro-inflammatory environment in the vessels. Oxidative stress also has been linked to atherogenesis, by promoting inflammatory environment and reduced nitric oxide availability in endothelium. Theaflavins rich fractions (TFs-RF) from black tea, Camellia sinensis are believed to promote cardio protective benefits. However, their potential therapeutic roles as anti-inflammatory and anti-oxidative in atherogenesis are not well established. The objectives of this study were to investigate (i) the anti-inflammatory effects of TF-RFs on cytokines [Interleukin-6 (IL-6), and tumour necrosis factor alpha (TNF-a)] , cyclooxygenase-2 (COX-2), endothelial nitric oxide synthase (eNOS) and nitric oxide (NO), and (ii) the anti-oxidative effects of TFs-RF on reactive oxygen species (ROS) activity in stimulated human ECs. Cytotoxicity of TFs-RF (1.6 - 200 |xg/ml) towards Human umbilical vein endothelial cells (HUVECs) were assessed by using 3-(4,5-dimethylthiazol-2-yl)-5(3-carboxymethoxyphenyl)- tetrazolium (MTS) assay. Confluent HUVECs were incubated with 10, 20, 30, 40 and 50 |ig/ml of TFs-RF together with lipopolysaccharides(LPS) for 16 hours. Culture medium were collected and measured for IL-6, TNF-a, COX-2 and eNOS protein expression and NO level by using Enzyme-linked immunosorbent assay (ELISA) and colorimetric assay respectively… 2016 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/17794/2/TM_REMEE%20AWANG%20JALIL%20MD%2016_5.pdf Awang Jalil, Remee (2016) Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil. Masters thesis, Universiti Teknologi MARA.
repository_type Digital Repository
institution_category Local University
institution Universiti Teknologi MARA
building UiTM Institutional Repository
collection Online Access
language English
description Activation of endothelial cells (ECs) occurs early in atherogenesis leading to increased pro-inflammatory environment in the vessels. Oxidative stress also has been linked to atherogenesis, by promoting inflammatory environment and reduced nitric oxide availability in endothelium. Theaflavins rich fractions (TFs-RF) from black tea, Camellia sinensis are believed to promote cardio protective benefits. However, their potential therapeutic roles as anti-inflammatory and anti-oxidative in atherogenesis are not well established. The objectives of this study were to investigate (i) the anti-inflammatory effects of TF-RFs on cytokines [Interleukin-6 (IL-6), and tumour necrosis factor alpha (TNF-a)] , cyclooxygenase-2 (COX-2), endothelial nitric oxide synthase (eNOS) and nitric oxide (NO), and (ii) the anti-oxidative effects of TFs-RF on reactive oxygen species (ROS) activity in stimulated human ECs. Cytotoxicity of TFs-RF (1.6 - 200 |xg/ml) towards Human umbilical vein endothelial cells (HUVECs) were assessed by using 3-(4,5-dimethylthiazol-2-yl)-5(3-carboxymethoxyphenyl)- tetrazolium (MTS) assay. Confluent HUVECs were incubated with 10, 20, 30, 40 and 50 |ig/ml of TFs-RF together with lipopolysaccharides(LPS) for 16 hours. Culture medium were collected and measured for IL-6, TNF-a, COX-2 and eNOS protein expression and NO level by using Enzyme-linked immunosorbent assay (ELISA) and colorimetric assay respectively…
format Thesis
author Awang Jalil, Remee
spellingShingle Awang Jalil, Remee
Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil
author_facet Awang Jalil, Remee
author_sort Awang Jalil, Remee
title Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil
title_short Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil
title_full Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil
title_fullStr Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil
title_full_unstemmed Effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / Remee Awang Jalil
title_sort effects of theaflavins rich fraction on pro-inflammatory markers and oxidative stress in stimulated endothelial cells / remee awang jalil
publishDate 2016
url http://ir.uitm.edu.my/id/eprint/17794/
http://ir.uitm.edu.my/id/eprint/17794/2/TM_REMEE%20AWANG%20JALIL%20MD%2016_5.pdf
first_indexed 2023-09-18T22:59:05Z
last_indexed 2023-09-18T22:59:05Z
_version_ 1777418051595010048

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