Effects of nateglinide and rosiglitazone on pancreatic alpha- and beta-cells, GLP-1 secretion and inflammatory markers in patients with type 2 diabetes: randomized crossover clinical study - Tostes, Glauce Cordeiro Ulhôa; Cunha, Maria Rosário; Fukui, Rosa Tsunechiro; Correia, Márcia Regina Silva; Rocha, Dalva Marreiro; Santos, Rosa Ferreira dos; Silva, Maria Elizabeth Rossi da (Diabetology and Metabolic Syndrome, 2016)