Psychostimulant drugs of abuse increase dendritic spine density in reward centers of the brain. However, little is known about their effects in the hippocampus, where activity-dependent changes in the density of dendritic spine are associated with learning and memory. Recent reports suggest that Cdk5 plays an important role in drug addiction, but its role in psychostimulant's effects on dendrit...

OBJECTIVE To assess the prevalence of systemic inflammatory syndromes on admission to a tertiary-care university pediatric intensive care unit (ICU), and relate this to length of hospital stay, risk of death and mortality rate. METHODS Cross-sectional, prospective, observational study, including all patients admitted to the Hospital de Clinicas de Porto Alegre (HCPA) ICU between August 1st 19...

For more than 20 years, Pt/TiO2 represents the benchmark photocatalyst/co-catalyst platform for photocatalytic hydrogen (H2) generation. Here, single atom (SA) Pt is decorated on different polymorphs of TiO2 (anatase, rutile, and mixed phase P25) using a simple immersion anchoring approach. On P25 anatase, SAs act as highly effective co-catalyst pure water splitting with H2 evolution activity (...

Ageing induces modifications capable of compromising seed vigour and viability. This study investigated the effects exogenous application five antioxidants: ascorbic acid (AA), gallic (GA), reduced glutathione (GSH), trolox glycerol, on physical biochemical lesions induced by controlled deterioration (CD) in Brassica oleracea (cabbage) Lactuca sativa (lettuce) seeds. The antioxidants were appli...

TiO2/SiO2 composites were synthesized via a simple sol gel method by surface reduction of Ti4+ ions to Ti3+ using titanium isopropoxide as TiO2 precursor and rice husks (RHA) SiO2 source. The silica content calcination temperature the materials evaluated. Thermal, crystallographic physicochemical aspects suggest that biogenic (SiO2) can improve thermal stability anatase phase TiO2, when reaches...

····························· P3 Introduction ·····························P4-8 Material and Methods ·························P9-12 Results ······························· P13-19 Discussion and Conclusions ·······················P20-24 Acknowledgements ·························· P24 References ····························· P25-26

We report on an elaboration of new composite photocatalysts (TiO2–P25@ n-TiO2@HAP) based grafted size-selected 5-nm titanium-oxo-alkoxo nanoparticles P25-TiO2 and HAP obtained by co-precipitation salts. The oxo-TiO2 particles were prepared in a sol–gel reactor with rapid reagents micromixing. photocatalytic test ethylene degradation, continuous-flow fixed-bed reactor, showed increase the yield ...

The present study aimed to investigate the protective effect of a modified p5 peptide, TFP5, on 1-methyl-4-phenyl pyridine ion (MPP+)-induced neurotoxicity in cortical neurons and explore the therapeutic effect of TFP5 on Parkinson's disease (PD). MPP+ was applied to a primary culture of mouse cortical neurons to establish the cell model of PD. Neurons were divided into four groups: Control, mo...