Associations of Apelin, Visfatin, and Urinary 8-Isoprostane With Severe Hypertension in African Americans: The MH-GRID Study.

Background: Apelin is an adipokine directly associated with adiposity, insulin resistance, and decreased blood pressure. Urinary 8-isoprostane is a marker of chronic oxidative endothelial stress. Visfatin, an adipokine that acts by binding and activating the insulin receptor, has been associated with hypertension.

Interactive modeling for ongoing utility of pharmacogenetic diagnostic testing: application for warfarin therapy.

Background: The application of pharmacogenetic results requires demonstrable correlations between a test result and an indicated specific course of action. We developed a computational decision-support tool that combines patient-specific genotype and phenotype information to provide strategic dosage guidance. This tool, through estimating quantitative and temporal parameters associated with the metabolism- and concentration-dependent response to warfarin, provides the necessary patient-specific context for interpreting international normalized ratio (INR) measurements.

Fluorescence of putative chromophores in Skh-1 and citrate-soluble calf skin collagens.

Background/purpose: Fluorescence of Skh-1 hairless mouse and calf skin acid-soluble type I collagens are envelopes of several bands putatively due to tyrosine (excitation/emission peak at 275/300 nm), dihydroxyphenylalanine (dopa; 280/325 nm), tyrosine aggregate (285/360 nm), dityrosine 325/400 nm), and advanced glycation end (AGE) product (370/450 nm), respectively. As these fluorophores can be markers of pathological conditions, we wish to present further evidence for or against these assignments.

Methods: We analysed intact type I mouse collagens and AGE by conventional fluorescence spectroscopy, synchronous spectroscopy, high-performance liquid chromatography (HPLC), and borate quenching.

Toward understanding the influence of soil metals and sulfate content on plant thiols.

Plants respond to increased concentrations of metals by a number of mechanisms, including chelation with phytochelatins (PCs). Soil specimens and plants (Veronica anagalis-aquatica, Typha domingensis, Cynodon dactylon, Chenopodium album, Rumex dentatus, Amaranthus gracilis, Chenopodium murale, Inula viscosa) leaves were collected from two sites in northern Jordan and subsequently metals (cadmium, copper, and lead), sulfate, and PC (from leaves) levels were determined. One of these sites was contaminated with metals and the other served as a control site.