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Amyloid beta peptide (Abeta), the pathogenic agent of Alzheimer's disease (AD), is a physiological metabolite in the brain. We examined the role of neprilysin, a candidate Abeta-degrading peptidase, in the metabolism using neprilysin gene-disrupted mice. Neprilysin deficiency resulted in defects both in the degradation of exogenously administered Abeta and(More)
There is growing evidence that GABA (γ-aminobutyric acid) can activate GABAA receptors (GABAARs) in the absence of an α subunit. In this study, we compared the pharmacology of homomeric and binary α4, β3 or δ subunits with ternary α4β3δ to identify subunit interfaces that contribute to the pharmacology of GABA, THIP, and DS2, and the antagonists, Zn(2+),(More)
When two new steroids, methyl prednisolonate and methyl 20-dihydroprednisolonate, were applied locally their anti-inflammatory activities were nearly equivalent to those of the parent compound prednisolone in the cotton pellet granuloma bioassay. However, when these two derivatives were administered systemically, their anti-inflammatory activities were(More)
This study investigated the link between growth arrest and DNA damage 45γ (GADD45γ) expression and tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) synthesis. We stimulated THP-1 monocyte cells using lipopolysaccharide (LPS). We knocked-down and over-expressed GADD45γ using lentiviral vectors harboring GADD45γ short hairpin RNA and GADD45γ open(More)
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