purpose: to study recordings of oscillatory potentials (ops) of the electroretinogram (erg) in diabetic eyes that have no visible fundus alterations, to ascertain whether changes in sensitivity are evident when compared with recordings from age-matched controls. methods: ops of the erg were measured from 68 eyes of 34 patients with diabetes without retinopathy and from 30 eyes of 15 normal subj...

In this paper we analyze the vibrational spectra of a large ensemble of non-homologous protein structures by means of a novel tool, that we coin Hierarchical Network Model (HNM). Our coarse-grained scheme accounts for the intrinsic heterogeneity of force constants displayed by protein arrangements and also incorporates side chain degrees of freedom. Our analysis shows that vibrational entropy p...

In order to identify the effects of vitamin B 12 and folic acid in reducing methanolinduced retinopathy, ERG waves were compared before and after methanol intoxication in rabbits. In this study 34 rabbits were divided into 4 groups. All groups received 4 g/kg of methanol intraperitoneally. In addition, the second, third and fourth groups received vitamin B 12 injection, oral folic acid and ...

A large amount of studies of the last decades revealed an association between human behavior and oscillatory activity in the human brain. Alike, abnormalities of oscillatory activity were related with pathological behavior in many neuropsychiatric disorders, such as in Parkinson's disease (PD) or in schizophrenia (SCZ). As a therapeutic tool, non-invasive brain stimulation (NIBS) has demonstrat...

In order to identify the effects of vitamin B 12 and folic acid in reducing methanolinduced retinopathy, ERG waves were compared before and after methanol intoxication in rabbits. In this study 34 rabbits were divided into 4 groups. All groups received 4 g/kg of methanol intraperitoneally. In addition, the second, third and fourth groups received vitamin B 12 injection, oral folic acid and ...