The aim of this study is to evaluate the bioactive compounds in the ethanolic leaf extract of Azima tetracantha by using Gas chromatographyMass Spectrometry (GCMS). Azima tetracantha leaves were collected from Ariyalur District, Tamil Nadu. The dried leaf powder was extracted with the solvent ethanol by using Soxhlet apparatus. One microlitre of the extract was subjected for analysis by GCMS to...

A method for the determination of conjugated bile acids in human bile using isotachophoresis in 95% methanol is described. The leading ion is 0.01 M chloride, the counter ion is hydroxylamine at its pK value and the terminating ion is N-2-hydroxyethylpiperazine-N'-2-ethanesulphonic acid (HEPES). The sample preparation consists of C18-silica cartridge adsorption. Microlitre amounts of the methan...

We have developed proprietary technologies for executing continuous flow assays in biochips which mimic human capillaries. Such technologies are integral to the rapidly growing laboratory instrumentation sector for applications in drug discovery, biotechnology, medical diagnostics and environmental studies. A common link between all sectors is the movement toward miniaturization to increase thr...

Histoplasmosis, caused by two varieties of dimorphic fungi, Histoplasma capsulatum variant capsulatum and Histoplasma capsulatum variant duboisii is a systemic fungal infection. It has a worldwide distribution and is shown to be more prevalent in North America and Central America. Both variants occur in Africa. Disease spectrum ranges from asymptomatic primary infection to disseminated disease ...

The superb depth resolution of low-energy forward recoil spectrometry, (LE-FRES), is demonstrated by measuring the interfacial profile between 1,4-polybutadiene (PB), and deuterated polystyrene (dPS), at 1758C. To enhance depth resolution, the top dPS layer is ‘thinned’ by ion sputtering, prior to LE-FRES analysis, to achieve a resolution of 13 nm at the interface. An interfacial width of 6.0 ^...

The Rockefeller University Press $30.00 J. Cell Biol. Vol. 185 No. 2 235–249 www.jcb.org/cgi/doi/10.1083/jcb.200811138 JCB 235 Correspondence to Claudio Sette: [email protected]; or Stéphane Richard: [email protected] Maria Paola Paronetto’s present address is Centre de Regulaciò Genomica, Barcelona 08003, Spain. Abbreviations used in this paper: ANOVA, analysis of variance; dp...

Over the past two centuries human life expectancy has increased by nearly 50 years. Genetic factors account for about one-third of the variation in life expectancy so that most of the interindividual variation in lifespan is explained by stochastic and environmental factors, including diet. In some model organisms, dietary (energy) restriction is a potent, and highly reproducible, means of incr...