Vilchis C, Salceda R
Instituto de Fisiologia Celular, UNAM, Departamento Neurociencias, Mexico, D.F., México.
Neurochem Res. 1996 Oct;21(10):1167-71. doi: 10.1007/BF02532391.
Free amino acid levels and high affinity uptake of glutamate, aspartate, gamma-aminobutyrate, glycine and taurine were studied in retina and retinal pigment epithelium of streptozotocin diabetic rats. Results show that experimental diabetes produces a generalized fall in the content of free amino acids in both retina and retinal pigment epithelium. With regard to the high affinity uptake, in the two tissues of diabetic animals showed decreased aspartate uptake, enhanced taurine and gamma-aminobutyrate uptake, whereas that of glycine and glutamate was unchanged. These results might suggest that diabetes causes alterations of specific amino acid transport systems and/or alterations of some cell populations.
