[Comparative studies on the basal blood levels of contrainsular hormones in diabetics with and without retinopathy].

Comparative studies on the basal blood level of II contrainsular hormones have been carried out in patients with diabetes mellitus in subgroups with present, absent resp. retinopathy. The presence of diabetic retinopathy was established to be accompanied by the reduction of T3 and serotonin, whereas its absence was accompanied with the increase of TTH. The elucidation of the significance of the hormonal discrepancies established for the pathogenesis of retinopathy requires additional studies.