Purpose. To evaluate efficacy of intravitreal triamcinolone (IVT) and bevacizumab (IVB) as adjunctive treatments to panretinal photocoagulation (PRP) in proliferative diabetic retinopathy (PDR). Methods. In 60 eyes of 45 patients with PDR, PRP (PRP group), PRP with IVT (IVT group), or PRP with IVB (IVB group) was performed. Regression of new vessels (NV), changes in best-corrected visual acuity...

Chronic wasting disease (CWD) is a transmissible spongiform encephalopathy (TSE) of deer and elk, and little is known about its transmissibility to other species. An important factor controlling interspecies TSE susceptibility is prion protein (PrP) homology between the source and recipient species/genotypes. Furthermore, the efficiency with which the protease-resistant PrP (PrP-res) of one spe...

Prion diseases are fatal infectious neurodegenerative disorders in man and animals associated with the accumulation of the pathogenic isoform PrP(Sc) of the host-encoded prion protein (PrP(c)). A profound conformational change of PrP(c) underlies formation of PrP(Sc) and prion propagation involves conversion of PrP(c) substrate by direct interaction with PrP(Sc) template. Identifying the interf...

The cellular prion protein (PrP(C)) has been widely investigated ever since its conformational isoform, the prion (or PrP(Sc)), was identified as the etiological agent of prion disorders. The high homology shared by the PrP(C)-encoding gene among mammals, its high turnover rate and expression in every tissue strongly suggest that PrP(C) may possess key physiological functions. Therefore, defini...

Metal induced free radicals are important mediators of neurotoxicity in several neurodegenerative conditions such as Alzheimer's disease, Parkinson's disease, and Huntington's disease. Similar evidence is now emerging for prion diseases, a group of neurodegenerative disorders of humans and animals. The main pathogenic agent in all prion disorders is PrP-scrapie (PrP(Sc)), a beta-sheet rich isof...

Platelet-rich plasma (PRP) has gained growing popularity in the treatment of articular cartilage lesions in the last decade. However, the potential harmful effects of leukocytes in PRP on cartilage regeneration have seldom been studied in vitro, and not at all in vivo yet. The objective of the present study is to compare the effects of leukocyte- and platelet-rich plasma (L-PRP) and pure platel...

INTRODUCTION The use of PRP has been studied for different fields, with promising results in regenerative medicine. Until now, there is no study in the literature evaluating thrombin levels in serum, used as autologous thrombin preparation. Therefore, in the present study we evaluated the role played by different thrombin concentrations in PRP and the impact in the release of growth factors. Al...

The transmissible agent of prion disease consists of prion protein (PrP) in β-sheet-rich state (PrP(Sc)) that can replicate its conformation according to a template-assisted mechanism. This mechanism postulates that the folding pattern of a newly recruited polypeptide accurately reproduces that of the PrP(Sc) template. Here, three conformationally distinct amyloid states were prepared in vitro ...

This study was done for comparative evaluation of Hydrogel dressing with conventional dressing in 2nd degree burns involving up to 25 % of the total body surface area in our S.S.G. Hospital, Vadodara, Gujarat state, India from June 2005 to November 2006. In one group treatment with Hydrogel dressing was continued every three days and in the other group conventional dressing with Silver Sulfadia...