Related Experiment Video
Updated: Sep 2, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
Published on: June 30, 2013
[Oxidation mechanisms and anti-oxidation in HIV infected patients--effect on disease progression]
1Zakład Biochemii Klinicznej, Akademii Medycznej, Bydgoszczy.
Abstract:
Recently it has been proposed that reactive oxygen species (ROS) are involved in pathogenesis of many human diseases. An elevated level of these molecules causes oxidative stress and is toxic for living cells. Oxidative stress is the reason of many damages of cellular structures, as result of free radical reactions with proteins, lipids, nucleic acids etc. In most of human diseases overproduction of ROS is characteristic for early stage of disease. Some of infectious factors, e.g. viruses can cause oxidative stress by disturbance of cellular antioxidants system or induction of oxidative reactions. There is some evidence of presence of oxidative stress in early stage of HIV infection (glutathione and other antioxidants loss in serum and decreased activity of antioxidant enzymes). All these metabolic disturbances may be involved in AIDS pathogenesis, for example through incorrect induction of lymphocyte apoptosis, tumours related to AIDS and high rate of HIV mutation. This suggests a possible, important role of oxidative stress in AIDS pathogenesis and that administration of antioxidant drugs, by HIV infected patients, may offer protection against mechanisms responsible for lymphocyte apoptosis and AIDS related carcinogenesis.
Insights
Reactive oxygen species (ROS) cause oxidative stress, damaging cells and contributing to human diseases. Antioxidant therapies may protect HIV-infected patients from AIDS pathogenesis, including apoptosis and cancer.
Area of Science:
- Biochemistry
- Pathology
- Immunology
Context:
- Reactive oxygen species (ROS) are implicated in the pathogenesis of numerous human diseases.
- Elevated ROS levels lead to oxidative stress, which is toxic to cells and causes damage to cellular structures.
- Oxidative stress is often a characteristic of the early stages of many diseases, including viral infections.
Purpose:
- To explore the role of oxidative stress in the pathogenesis of Acquired Immunodeficiency Syndrome (AIDS).
- To investigate the potential benefits of antioxidant drug administration in managing HIV infection.
Summary:
- Oxidative stress, caused by an imbalance of reactive oxygen species (ROS), is increasingly recognized as a factor in human disease.
- In HIV infection, evidence suggests oxidative stress occurs early, evidenced by reduced antioxidants and enzyme activity.
- This oxidative stress may contribute to AIDS pathogenesis, influencing lymphocyte apoptosis, AIDS-related tumors, and HIV mutation rates.
Impact:
- Understanding the role of oxidative stress in AIDS pathogenesis could lead to novel therapeutic strategies.
- Antioxidant interventions may offer a protective mechanism against key pathological processes in HIV infection, such as apoptosis and carcinogenesis.
- This research highlights the potential of targeting oxidative stress to improve outcomes for individuals with HIV/AIDS.
Related Concept Videos
Retrovirus Life Cycles
Humoral Immune Responses
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Phase I Oxidative Reactions: Overview
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...

