Additionally, basic biochemical parameters and malnutrition biomarkers, including glucose, urea, creatinine, uric acid, total proteins, albumins, transthyretin, and retinol binding protein, total bilirubin, alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase, γ-glutamyltransferase, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triacylglycerols, and glycated hemoglobin HbA1c, will be analyzed in blood samples by a commercial medical laboratory. Here, TTR is linked to nutritional deficiency disease.