# Oxidative stress markers and atherogenic lipid alterations among chronic smokers

**Authors:** Gaurang Hasmukhbhai Suhagiya, Soham V Shah, Krupa Rajeshbhai Gondaliya, Aditi Singh, Gazal Mangukiya, Huma Saiyad

PMC · DOI: 10.6026/973206300214917 · 2025-12-15

## TL;DR

Chronic smoking increases oxidative stress and alters lipid levels, raising cardiovascular risk.

## Contribution

Identifies oxidative stress markers and lipid changes as cardiovascular risk predictors in smokers.

## Key findings

- Smokers had higher MDA levels and lower SOD and CAT activities.
- Dyslipidemia and higher Atherogenic Index of Plasma were linked to oxidative stress.
- Oxidative stress markers may predict cardiovascular risk in smokers.

## Abstract

The constant entry of exogenous reactive oxygen species makes cigarette smoking one of the key contributors to systemic oxidative
stress. Therefore, it is interest to compare the oxidative stress markers and lipid profiles of chronic smokers and age matched non-smokers.
A cross-sectional examination of 200 males showed that serum Malondialdehyde (MDA) level was much higher and the SOD and CAT activities
were much lower among smokers. Dyslipidemia and higher Atherogenic Index of Plasma were strongly positively related to oxidative stress.
Thus, those oxidative biomarkers are potential cardiovascular risk predictors in chronic smokers.

## Linked entities

- **Proteins:** SOD1 (superoxide dismutase 1), CAT (catalase)
- **Chemicals:** Malondialdehyde (PubChem CID 10964)
- **Diseases:** dyslipidemia (MONDO:0002525)

## Full-text entities

- **Genes:** CAT (catalase) [NCBI Gene 847], SOD1 (superoxide dismutase 1) [NCBI Gene 6647] {aka ALS, ALS1, HEL-S-44, IPOA, SOD, STAHP}
- **Diseases:** Atherogenic (MESH:D050197), Dyslipidemia (MESH:D050171)
- **Chemicals:** reactive oxygen species (MESH:D017382), lipid (MESH:D008055), MDA (MESH:D008315)

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Source: https://tomesphere.com/paper/PMC13018467