GPT and Alzheimer disease: As for their biochemical profiles, AD (+) group appeared to have significantly lower hemoglobin level, platelet count and international normalized ratio (INR) than AD (–) group, but no significance was observed in serum levels of aspartate transaminases (AST), alanine transaminases (ALT), total bilirubin, prognostic nutritional index (PNI), platelet to lymphocyte ratio (PLR) or neutrophil to lymphocyte ratio (NLR).