Oxidative Medicine and Cellular Longevity / 2016 / Article / Fig 3

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 3

Systemic oxidative stress markers: plasma levels of nitrites/nitrates (NO2 + NO3) (a), of malonyl dialdehyde (MDA) (b), and of Cu,Zn-superoxide dismutase 3 (Cu,Zn-SOD3) (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. NO2 + NO3: nitrites + nitrates; MDA: malonyl dialdehyde. Reference normality range: plasma NO2 + NO3 (70.3–221.0 μM); plasma MDA (1.0–2.2 μM); plasma Cu,Zn-SOD3 (5.0–20.1 U/mL).
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