Abstract Citronellal was converted to menthol in a one-pot approach using H-Beta zeolite-based Ni catalyst batch reactor at 80 °C, under 20 bar of total pressure. The effects acidity (H-Beta-25 with the molar ratio SiO 2 /Al O 3 = 25 and H-Beta-300 300) loading (5, 10 15 wt %) on catalytic performance were investigated. impregnated support evaporation-impregnation method. physico-chemical prope...

background patients with beta thalassemia suffer from increased susceptibility to infections and putridity plays a major role in the patient's morbidity and mortality. the risk of transfusion-transmitted viral infection is well known in these patients. however, there is dearth of information about the seroprevalence of herpes simplex virus (hsv) infection in patients with beta thalassemia in li...

A major expansion of CD8+57+ lymphocytes expressing an alpha-beta T-cell receptor (TCR) is frequent after bone marrow transplantation (BMT). We examined the clonality of the TCR beta gene repertoire in these expanded CD8+57+ cells after allogeneic or autologous BMT. We performed a polymerase chain reaction (PCR) analysis of the V beta chain usage in CD8+57+ cells purified from nine BMT recipien...

abstract introduction : celiac disease (cd) is an autoimmune disorder triggered by ingestion of gluten in genetically predisposed individuals.  this study reports evaluated prevalence of cd in patients with beta-thalassemia major. materials and methods: in this case-control study in a period of 3 years  which was performed on 620 children in two groups of  beta-thalassemia major  patients (n=20...

BACKGROUND Glucose effects on beta cell survival and DNA-synthesis suggest a role as regulator of beta cell mass but data on beta cell numbers are lacking. We examined outcome of these influences on the number of beta cells isolated at different growth stages in their population. METHODS Beta cells from neonatal, young-adult and old rats were cultured serum-free for 15 days. Their number was ...

A new saponin, malonylginsenoside Ra3, was isolated from the fresh root of Panax ginseng, along with four known ginsenosides. The new compound was identified as (20S)-protopanaxadiol-3-O-(6-O-malonyl-beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranoside-20-O-beta-D-xylopyranosyl(1-->3)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside on the basis of extensive 1D and 2D NMR as well as HRESI-MS ...