Ethanol and aqueous extracts of Machilus thunbergii used traditionally for the treatments a wide variety of diseases were screened in vitro for the matrix metalloproteinase (MMP)-9 inhibitor actions. Meso-dihydroguaiaretic acid from the stems bark of Machilus thunbergii showed significant MMP-9 inhibition in human keratinocyte cells cause by ultraviolet irradiation. Here we investigated the eff...

UNLABELLED To visualize the regional localization of glutathione (GSH) in the brain, the relationship between the concentrations of tissue GSH and uptake of [99mTc]meso-hexamethyl propyleneamine oxime ([99mTc] meso-HMPAO) or [99mTc]d,l-hexamethyl propyleneamine oxime ([99mTc]d,l-HMPAO) was studied in mice. METHODS The uptake of [99mTc]meso-HMPAO in the mouse brain was decreased to 35% of cont...

Carotenoids are plant-derived pigment molecules that vertebrates cannot synthesize de novo that protect the fovea of the primate retina from oxidative stress and light damage. meso-Zeaxanthin is an ocular-specific carotenoid for which there are no common dietary sources. It is one of the three major carotenoids present at the foveal center, but the mechanism by which it is produced in the eye i...

A meso-meso directly linked cyclic octameric porphyrin square was synthesized via stepwise Suzuki-Miyaura cross coupling reactions, and its ability to capture a guest molecule in the inside cavity has been confirmed.

Meso-alkylidenyl-thia(p-benzi)porphyrin and its ring expanded analog containing exocyclic C-C double bonds at meso-positions, undergo initial protonation at the exocyclic alkylidene alpha-carbon.

richard saltman and antonio duran take up the challenging issue of governance in their article “governance, government and the search for new provider models,” and use two case studies of health policy changes in sweden and spain to shed light on the subject. in this commentary, i seek to link their conceptualization of governance, especially its interrelated roles at the macro, meso, and micro...

BACKGROUND 2,3-Butanediol (2,3-BD) can be used as a liquid fuel additive to replace petroleum oil, and as an important platform chemical in the pharmaceutical and plastic industries. Microbial production of 2,3-BD by Bacillus licheniformis presents potential advantages due to its GRAS status, but previous attempts to use this microorganism as a chassis strain resulted in the production of a mix...

The meso/micro layered manufacturing technologies have significant implications for the design and fabrication of complex miniature structures. A laser-based additive/subtractive Rapid Manufacturing system is thus developed to build meso/micro structures. By incorporating laser microdeposition and micromachining with a pulsed Nd:YAG laser that has four harmonic wavelengths, this manufacturing s...

Group 4 metal initiators with a tetradentate bis(phenolato) ligand polymerized meso-lactide efficiently under ring-opening to give syndiotactic polylactide. L-Lactide was converted faster than rac-lactide and meso-lactide.

The equilibrium exchange of hydrogen between the 2,3methylene positions of succinate and water was studied under aerobic conditions with specifically tritiated and deuterated succinates and soluble succinic dehydrogenase prepared by the method of Singer from bovine heart. The exchange of tritium from racemic 2-tritiosuccinate (racemic-T1), racemic 2,3-ditritiosuccinate (racemic-T?), and meso-2,...