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2016-IJPPS-EVALUATING THE LEVELS OF OXIDATIVE DNA DAMAGE IN HUMAN LYMPHOCYTES IN RESPONSE TO CAFFEINE USING COMET ASSAY (SINGLE CELL GEL ELECTROPHORESIS).pdf (379.46 kB)

Evaluating the levels of oxidative DNA damage in human lymphocytes in response to caffeine using comet assay (single cell gel electrophoresis)

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posted on 2023-05-18, 20:05 authored by Al-Wasiti, EA, Al-Shaban, SAW, Al-Salihi, AR, Al-Aubaidy, HA

Objectives: Caffeine asin (coffee, cola, and tea) is the most widely consumed beverages worldwide. The current study aims to evaluate the effects of caffeine in different concentrations on human cultured peripheral lymphocytes, in healthy individuals, using comet assay. The extent of DNA damage reflects a balance between oxidative stress (the presence of hydrogen peroxide H2O2 as a reactive oxygen species ROS), and DNA repair ability (the presence of anti-oxidant may be caffeine substances at known concentrations). This is an important method to prevent and avoid many cancerous diseases in an era of various pollutants.

Methods: Ten milliliters of venous blood samples were collected from 40 healthy young individuals, and lymphocyte cultures were set up after lymphocyte isolation with ficoll centrifugation. The mixture of lymphocytes culture media was incubated in the sterile incubator for 5 min after adding serial concentrations of caffeine (100, 500, 5000, 10000) µg/ml, as(group1,2,3,4 respectively) to 5% H2O2. The levels of oxidative DNA damage were expressed as comet tail length.

Results: At concentration 100 ug/ml, there was a significant elevation in the mean comet tail length level in cultured lymphocytes treated with hydrogen peroxide (106.96 µm) compared with the treated with All (mixture of caffeine, and H2O2), 6.670 µm.

Conclusion: We’ve concluded that a caffeine concentration of 100 µg/ml possesses the strongest anti-oxidant properties and causes much less DNA damage in lymphocytic culture when exposed to hydrogen peroxide.

History

Publication title

International Journal of Pharmacy and Pharmaceutical Sciences

Volume

8

Issue

6

Pagination

137-141

ISSN

0975-1491

Department/School

Tasmanian School of Medicine

Publisher

International Journal of Pharmacy and Pharmaceutical Sciences

Place of publication

India

Rights statement

Copyright 2016 The Authors Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Repository Status

  • Open

Socio-economic Objectives

Clinical health not elsewhere classified

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