Figure 4 | Scientific Reports

Figure 4

From: Electrochemical detection of uric acid in undiluted human saliva using uricase paper integrated electrodes

Figure 4

Uric acid (UA) levels in serum and unstimulated whole saliva samples. (a) Patients with gout (n = 8) showed significantly higher levels of serum or salivary UA than control subjects (n = 20, all p < 0.05). Salivary UA levels measured with our UA sensor were significantly lower than serum and salivary UA levels measured via conventional enzymatic colorimetric assays in both controls and gout cases (both p < 0.0001 by ANOVA). Error bars represent standard error of mean. (b) UA levels in serum or saliva (measured with Salimetrics® and UA sensor) were significantly positively correlated with each other.

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