Tyrosol galactoside (Tyr), an analog of Sal, was recently synthesized
in our laboratory. The purpose of the current study was to investigate and compare the neuroprotective effects of Sal and Tyr against focal cerebral ischemia check details in vivo and H2O2-induced neurotoxicity in vitro. Sal and Tyr significantly prevented a cerebral ischemic injury induced by a 2 h middle cerebral artery occlusion and a 24 h reperfusion in rats in vivo. Furthermore, the oxidative insult was markedly attenuated by treatments of Sal and Tyr in the cultured rat cortical neurons after a 30 min exposure to 50 mu M of H2O2. Western blot analysis revealed that Sal and Tyr decreased the expression of Bax and restored click here the balance of pro- and anti-apoptotic proteins. The neuroprotective effects of these two analogues show that Tyr has a better antioxidative action compared with Sal both in vivo and in vitro, and suggest that the antioxidant
activity of Sal and Tyr may be partly due to their different substituents in their glycosyl groups. This gives a new insight into the development of therapeutic natural antioxidants against oxidative stress.”
“Studies comparing canine distemper virus (CDV) strains from Africa with that of previously described lineages have been hampered due to a lack of field strains for in vitro experiments. Since the attenuation of the Onderstepoort strain in the 1940s, there have not been any reports of CDV isolations in southern Africa. Clinical specimens consisting of whole blood, spleen, lungs, brain and cerebrospinal fluid from dogs with clinical signs
compatible with distemper diagnosis were obtained from private veterinary practices and diagnostic laboratories. The animals all displayed various catarrhal, systemic, or nervous signs of the disease. One hundred and sixty two specimens from 124 dogs were inoculated into Vero cells expressing canine signalling lymphocyte activation molecule (Vero.DogSLAM). Cytopathic effects (CPE) in the form of syncytia formation and cell necrosis were observed in 33 (20.4%) specimens within 24 h of inoculation and the presence of CDV was confirmed with the aid of the direct fluorescent antibody test and electron microscopy (EM). Four of the CDV-positive dogs had a history of canine HIF-1 activation distemper vaccinations. Seventy three percent of all positive dogs were less than 12 months old. Local isolates of wild-type CDV were generated and we conclude that isolation of CDV using Vero.DogSLAM is a specific and practical method for the antemortem diagnosis of distemper in dogs.”
“Transplant recipients are encouraged to write anonymous thank-you letters to the donor family. We prospectively explored heart transplant recipients’ embodied responses to the ‘obligation’ to write a thank-you letter using audio/video-taped open-ended interviews (N = 27).