Oxidative Stress and Longevity in Okinawa: An Investigation of Blood Lipid Peroxidation and Tocopherol in Okinawan Centenarians

Table 1

Plasma lipid peroxide in young, middle-aged, and older age groups (mean and SD), nmol/ml. LPO levels were measured using the TBA method [21, 22].

	20s	30s	70s	80s	100s
Male; (𝑛)	3.34±1.79 (4)	4.06±1.24 (8)***	3.15±0.70 (11)***	2.92±0.32 (5)***	1.49±0.51 (30)
Female; (𝑛)	3.18±0.64 (4)*	2.95±0.53 (8)**	3.56±0.81 (18)***	2.90±0.46 (3)	1.72±1.28 (109)
Total; (𝑛)	3.30±1.25 (8)***	3.51±1.08 (16)***	3.40±0.79 (29)***	2.91±0.34 (8)***	1.67±1.16 (139)

Significant difference between centenarians and particular age group: *𝑃<.05, **𝑃<.01, ***𝑃<.001.