H. Münkel

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The beta-1, beta-2 and beta-3 adrenergic properties of several benzodioxole-containing phenethanolamines were determined in vitro in both functional and binding assays. In addition, two of the compounds were evaluated for their effects on radioligand binding and cyclic AMP (cAMP) production in stably transfected Chinese Hamster Ovary (CHO) cells expressing(More)
Amyloid precursor protein (APP) is cleaved predominantly within the beta amyloid peptide (BAP) domain to release a non-amyloidogenic amino-terminal PN2 fragment. Treatment of cells with phorbol dibutyrate, an agent which activates protein kinase C, has been shown to increase the release of an amino-terminal fragment. A panel of mutant APP reporter(More)
Abnormal proteolytic processing of amyloid precursor protein (APP) is thought to be central to the formation and deposition of beta amyloid peptide in Alzheimer's disease. A putative "secretase" activity normally releases an amino-terminal APP fragment by cleaving APP at residues within the beta amyloid peptide thereby precluding amyloidogenesis. In order(More)
Using an S1 nuclease protection assay, we have identified a novel "variant" Amyloid Precursor Protein (APP) RNA in human brain which is 3-6-fold more abundant than APP-770, but less abundant than APP-751 or APP-695. This variant, referred to as amyloid precursor-related protein 365 (APRP-365), is not detected in mouse and rat brain RNAs. A 1.6 kilo-basepair(More)
When glucose was given to starved rats there was an increase in both 6-phosphofructo 2-kinase and pyruvate kinase activity and a decrease in fructose 2,6-bisphosphatase activity 30 min and 60 min later. These changes were accompanied by an increase in glycogen deposition and by modest, but significant increases in fructose 2,6-bisphosphate levels at the(More)
Fructose-2,6-bisphosphate levels in freeze-clamped livers of starved rats were 0.5 nmol/g liver. Oral administration of 1 g glucose per kg body weight to starved rats increased glycogen levels from 4 mg/g liver to 13.5 mg/g in 2 hr but did not significantly alter fructose-2,6-bisphosphate levels. The low level of this effector is consistent with an active(More)
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