Zenil-Vegaa M, Ceróna E, López-Bello G, et al. - Researchers sought to appraise the correlation between glycine and insulin plasma levels in patients with pulmonary tuberculosis (PTB) and type 2 diabetes mellitus (DM2). Four groups [1) patients with PTB; 2) patients with PTB-DM2; 3) household contacts with DM2 (C-DM2), and 4) healthy household contacts (H–C)] were examined for plasma levels of insulin and glycine. Outcomes revealed that patients with PTB and PTB-DM2 exhibit a significant association between glycine and insulin plasma levels, which implies the possible utility of the determination of glycine levels as a reference test to assess both pathologic conditions. They also observed significant changes in the glucose levels in these groups providing additional support to the above outcomes.