Effects of meditation on brain electrical activity [Efectos de la Meditación sobre la Actividad Eléctrica Cerebral]

The aim of this work was to study the changes on different parameters of brain electrical activity (EEG) produced by a 4 moth Autoallusive meditation training during two experimental conditions, rest and concentration in respiration, in nonexperienced subjects. EEG of 8 meditation trained (EG) and 8 control (CG) subjects was recorded during rest (BL) and during concentration on respiration before and after the training. In the EG vs CG: absolute power decreased, alpha2 relative power increased during concentration and alpha2 interhemispheric correlation increased during BL, from pre to post-training. In both groups: alpha1 relative power increased on BL on the post-training; alpha2 interhemispheric correlation was higher during concentration. Changes in the experimental group could be interpreted as a higher alert and more relaxed state, with higher functional sinchronization between cerebral hemispheres, produced by meditation training

Effects of meditation on brain electrical activity [Efectos de la MeditaciZapotitlánn sobre la Actividad Eléctrica Cerebral]

The aim of this work was to study the changes on different parameters of brain electrical activity (EEG) produced by a 4 moth Autoallusive meditation training during two experimental conditions, rest and concentration in respiration, in nonexperienced subjects. EEG of 8 meditation trained (EG) and 8 control (CG) subjects was recorded during rest (BL) and during concentration on respiration before and after the training. In the EG vs CG: absolute power decreased, alpha2 relative power increased during concentration and alpha2 interhemispheric correlation increased during BL, from pre to post-training. In both groups: alpha1 relative power increased on BL on the post-training; alpha2 interhemispheric correlation was higher during concentration. Changes in the experimental group could be interpreted as a higher alert and more relaxed state, with higher functional sinchronization between cerebral hemispheres, produced by meditation training

High levels of IgG class antibodies to recombinant HSP60 kDa of Yersinia enterocolitica in sera of patients with uveitis

Aims: To determine the levels of IgG class antibodies to recombinant heat shock protein 60 kDa of Yersinia enterocolitica (rHSP60Ye), Klebsiella pneumoniae (rHSP60Kp), Escherichia coli (rHSP60Ec), Shigella flexneri (rHSP60Sf), and Streptococcus pyogenes (rHSP60Sp) in the serum of patients with HLA-B27 associated acute anterior uveitis (HLA-B27 associated AAU), idiopathic acute anterior uveitis (idiopathic AAU), pars planitis, Vogt-Koyanagi-Harada (VKH), and healthy subjects. Methods: The genes that code for HSP60Ye, HSP60Kp, HSP60Ec, HSP60Sf, and HSP60Sp were cloned by PCR from genomic DNA. The rHSPs were purified by affinity using a Ni-NTA resin. The serum levels of IgG class antibodies to rHSP60s were determined by ELISA in patients with uveitis (n = 42) and in healthy subjects (n = 25). Results: The majority of patients with uveitis had higher levels of IgG class antibodies to rHSP60Ye compared with levels of healthy subjects (p = 0.01), although these differences were only observed in the HLA-B27 associated AAU (p = 0.005) and in pars planitis patients (p = 0.001). The levels of IgG antibodies to the rHSP60Kp, rHSP60Sf, rHSP60Ec, and rHSP60Sp were similar in patients with uveitis and in healthy subjects (p>0.05). Conclusion: The results suggest that HSP60Ye could be involved in the aetiology of HLA-B27 associated AAU and pars planitis