Oxidative stress plays an important role in the pathogenesis of some diseases such as lung cancer, chronic obstructive pulmonary disease, and atheroscleorosis. Smoking may enhance oxidative stress not only through the production of reactive oxygen radicals in smoke but also through weakening of the antioxidant defense systems. In this study, we investigated the effects of smoking on lipid peroxidation and paraoxonase activity in a healthy population. The study consisted of (n = 30) smokers and (n = 30) nonsmokers. The age of the population which is studied was 44.74 +/- 10.59 yr. The levels of serum malondialdehyde (MDA) and paraoxonase (PON1) activities were measured by the modified Buege method and the Eckerson method, respectively. Student's t-test was used to analyze the data. The serum MDA levels were significantly higher (p < .05) and serum PON1 activities were significantly lower (p < .001) in smokers than in nonsmokers. Thus, increased levels of serum MDA and decreased PON1 activities may be important in determining the oxidant/antioxidant imbalance in smokers.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/08958370701401418 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metabolomic and molecular analysis reveals multiple pathways of TBBPA-induced developmental toxicity in zebrafish embryos.
Toxicol Appl Pharmacol
March 2025
Center of Molecular Metabolism, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China. Electronic address:
Tetrabromobisphenol A (TBBPA), a commonly utilized flame retardant, presents potential risks to both environmental and human health, with particular concern regarding its impact on embryonic development.This study employed zebrafish embryos as a model organism to investigate the comprehensive toxicological effects of TBBPA exposure, integrating metabolomics analysis with molecular and biochemical approaches. Embryos exposed to TBBPA concentrations ranging from 0.
View Article and Find Full Text PDFKirenol alleviates cerebral ischemia-reperfusion injury by reducing oxidative stress and ameliorating mitochondrial dysfunction via activating the CK2/AKT pathway.
Free Radic Biol Med
March 2025
Institute of Structural Pharmacology & TCM Chemical Biology, Fujian Key Laboratory of Chinese Materia Medica, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; Wuya College of Innovation, School of Pharmacy, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China. Electronic address:
Ischemic stroke represents a predominant cause of morbidity and mortality globally, resulting from abrupt vascular occlusion or rupture, which precipitates considerable neuronal damage. This study aims to shed more light on the specific neuroprotective mechanisms of Kirenol, a bioactive diterpene derived from traditional herbal medicine, with a particular focus on its regulation of mitochondrial dynamics via the CK2/AKT signalling pathway and its impact on the mitochondrial fusion protein Optic atrophy 1 (Opa1). The effects of Kirenol on neuronal viability, mitochondrial function, and pertinent signalling pathways were evaluated by employing a middle cerebral artery occlusion (MCAO) model in rats and subjecting HT22 neuronal cells to oxidative stress.
View Article and Find Full Text PDFThe neuroprotective role of Humanin in Alzheimer's disease: The molecular effects.
Eur J Pharmacol
March 2025
Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira, Egypt. Electronic address:
Humanin (HN) is an endogenous micropeptide also known as a mitochondria-derived peptide. It has a neuroprotective effect against Alzheimer's disease (AD) and other neurodegenerative diseases by improving hippocampal acetylcholine and attenuating the development of oxidative stress and associated neurotoxicity. HN protects the neuron from the toxic effects of amyloid beta (Aβ).
View Article and Find Full Text PDFLoss of MAF bZIP transcription factor G restores ATG7/BECN1-mediated autophagy to inhibit ferroptosis and improve angiogenesis in diabetic foot ulcer wound healing.
Can J Diabetes
March 2025
Department of Medical Laboratory, The Third Hospital of Changsha, Changsha 410035, Hunan Province, P.R. China. Electronic address:
Background: Diabetic foot ulcer (DFU), a complication of diabetes, is associated with an increased risk of major amputation and mortality. However, the underlying pathogenesis of DFU remains unclear. The goal of this study was to investigate the role and underlying mechanism of MAF bZIP transcription factor G (MAFG) in DFU wound healing.
View Article and Find Full Text PDFPhotobiomodulation therapy facilitates transplantation of dental pulp stem cells for spinal cord injury.
Photodiagnosis Photodyn Ther
March 2025
Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China; Present address: Department of Physiology, University of California, San Francisco, CA, 94107, USA. Electronic address:
Background: While dental pulp stem cells (DPSCs) show therapeutic potential for spinal cord injury (SCI), post-traumatic oxidative stress and mitochondrial dysfunction critically compromise grafted cell survival. Photobiomodulation therapy (PBMT) is a noninvasive approach that may enhance regenerative efficacy. This study investigates whether PBMT improves the survival and neural differentiation of transplanted DPSCs in SCI models.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!