vector in southern and south-eastern Brazil, incriminated for oli

vector in southern and south-eastern Brazil, incriminated for oligosymptomatic malaria. Previous studies based on the analysis of X chromosome banding patterns and inversion frequencies in An. cruzii populations from these areas have suggested the occurrence of three sibling species. In contrast, two genetically distinct groups among An. cruzii populations from south/south-east and north-east Brazil have been revealed by isoenzyme

analysis. Therefore, An. cruzii remains unclear.

Methods: In this study, a partial sequence of the timeless gene (similar to 400 bp), a locus involved in the control of circadian rhythms, was used buy Blebbistatin as a molecular marker to assess the genetic differentiation between An. cruzii populations from six geographically distinct areas of Brazil.

Results: The timeless gene revealed that An. cruzii from Itaparica Island, Bahia State (north-east Brazil), constitutes

a highly differentiated group compared with the other five populations from south and south-east Brazil. In addition, significant genetic differences were also observed among some of the latter populations.

Conclusion: Analysis of the genetic differentiation in the timeless gene among An. cruzii populations from different areas of Brazil indicated that this malaria vector is a complex of at least two cryptic species. The data also suggest that further work might support the occurrence of other siblings within this complex in Brazil.”
“A MK5108 molecular weight novel microbial phospholipase C (PLC) from Bacillus licheniformis MTCC 7445 was purified to homogeneity by ammonium sulphate fractionation, dialysis, anion exchange chromatography and gel AZD1208 ic50 exclusion chromatography. The bacteria growing on vegetable oils secreted significantly high amount of PLC. The enzyme was purified to 23.4-fold with 46% recovery and specific activity 398 U/mg. It exhibited optimum activity

at 70 degrees C and pH 10.0. Using diphosphatidylglycerol as substrate the PLC of B. licheniformis MTCC 7445 had a V-max and K-m of 0.68 mM/min and 32 mM, respectively. It hydrolyzed phosphatidylinositol and phosphatidylserine as well as phosphatidylcholine but not other glycerophospholipids. Its activity was enhanced by 113% with Mn2+ and 110% with Mg2+. During degumming of vegetable oils with this enzyme preparation, the phosphorus content of the oil became lower than 4 mg/kg after 5 h of enzyme treatment at 40 degrees C. The novel PLC from B. licheniformis MTCC 7445 is potentially useful for the refining of high quality oils with 95% removal of phospholipids with attractive yield.”
“Aspirin is one of the pharmacological agents used for thromboprophylaxis.

National thromboprophylaxis guidelines, peer-reviewed studies and data from national joint register of England and Wales were analysed for evidence regarding the efficacy of aspirin versus other agents in thromboprophylaxis and the recommendations of guidelines.

Comments are closed.