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[Tear antioxidant potential in young adults].
Patrícia Ioschpe Gus1, Adriane Belló-Klein, Susana Llesuy
1Universidade de São Paulo, São Paulo, SP, Brasil.
Arquivos Brasileiros De Oftalmologia
|November 23, 2006
Summary
Human tear antioxidant levels, including total reactive antioxidant potential and superoxide dismutase, were measured in young adults. Lifestyle factors like exercise, gender, smoking, and vitamin C intake significantly influenced these antioxidant levels.
Area of Science:
- Biochemistry
- Human Physiology
- Ophthalmology
Context:
- Tear fluid serves as a crucial ocular surface defense mechanism.
- Antioxidant status in tears may reflect systemic health and lifestyle.
- Onion-induced reflex tearing provides a non-invasive method to assess tear antioxidants.
Purpose:
- To quantify antioxidant status in human tears stimulated by onion fumes.
- To investigate the influence of lifestyle factors on tear antioxidant levels.
Summary:
- Total reactive antioxidant potential (TRAP) and superoxide dismutase (SOD) were measured in tears of healthy young adults.
- Catalase was not detected in the tear samples.
- Regular exercise, male gender, smoking, and Vitamin C intake showed significant associations with tear antioxidant levels.
Impact:
- Demonstrates the measurability of reflex tearing antioxidants in humans.
- Highlights the impact of lifestyle choices on ocular antioxidant defense.
- Provides baseline data for future studies on tear antioxidant function and eye health.
