Oxidative Medicine and Cellular Longevity / 2016 / Article / Fig 4

Clinical Study

Skin Antiageing and Systemic Redox Effects of Supplementation with Marine Collagen Peptides and Plant-Derived Antioxidants: A Single-Blind Case-Control Clinical Study

Figure 4

Metabolic parameters related to collagen and ATP synthesis: levels of plasma hydroxyproline (a) and of the lipophilic antioxidant total coenzyme Q10 (reduced and oxidized forms, CoQ10H2 + CoQ10) (b) and erythrocyte ATP (c) in the study group of patients (), before and after food supplement administration period. Values are represented as mean (□), standard error of the mean (upper and lower limits of the box), and 1.96 × standard error (upper and lower whiskers). Intergroup significant differences () are indicated in the relative panels. CoQ10H2: reduced coenzyme Q10; CoQ10: oxidized coenzyme Q10; ATP: adenosine triphosphate; RBC: red blood cells. Reference normality range: total coenzyme Q10 (0.4–1.6 mg/L); ATP (1.0–4.0 mM).

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