Reactive Oxygen Species and Inflammation in the Elderly
Author Information
Author(s): Ogawa Kishiko, Suzuki Katsuhiko, Okutsu Mitsuharu, Yamazaki Kyoko, Shinkai Shoji
Primary Institution: Waseda University
Hypothesis
The spontaneous production of reactive oxygen species (ROS) from neutrophils changes with age and is associated with conventional inflammatory markers.
Conclusion
Spontaneous ROS production from neutrophils may increase with age and represent a different aspect of age-associated immune dysregulation.
Supporting Evidence
- Elderly subjects had higher spontaneous ROS production than young subjects.
- Inflammatory markers were significantly higher in the elderly group.
- Spontaneous ROS production negatively correlated with HSP70 in the elderly.
Takeaway
As people get older, their immune cells produce more reactive oxygen species, which can lead to inflammation.
Methodology
The study compared spontaneous ROS production and inflammatory markers in 37 elderly and 22 young subjects using flow cytometry and enzyme-linked immunosorbent assays.
Potential Biases
The elderly group had multiple health conditions that could influence ROS production.
Limitations
The study did not include aged healthy subjects without conditions associated with low-grade inflammation.
Participant Demographics
37 elderly subjects (median age 87, range 70-95) and 22 young subjects (median age 26, range 21-37), with the elderly group primarily consisting of women.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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