Wesley H. Anderson

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Kappa opioid receptors and their endogenous neuropeptide ligand, dynorphin A, are densely localized in limbic and cortical areas comprising the brain reward system, and appear to play a key role in modulating stress and mood. Growing literature indicates that kappa receptor antagonists may be beneficial in the treatment of mood and addictive disorders.(More)
Compared with other radiological examinations in which the breasts are directly exposed, the breast doses involved in computed tomographic (CT) chest examinations are high. A CT protocol which reduces such breast dose has been investigated. Breast doses have been measured for contiguous 10 mm scans and interspaced 3 mm scans. Differences in the breast doses(More)
In fibroblasts, the protein kinase C (PKC) activator phorbol 12-myristate (PMA) either inhibits or stimulates phospholipase C-mediated hydrolysis of phosphatidylethanolamine in the absence or presence of ethanol, respectively. Here, we demonstrate that the specific PKC inhibitor bisindolylmaleimide GF 109203X prevents only the inhibitory, but not the(More)
Two new acetylenic fatty acids, 9, 12-octadecadien-6-ynoic and 11,14-eicosadien-8-ynoic, were identified from lipids of the moss,Fontinalis antipyretica. They resemble the previously identified 9,12,15-octadecatrien-6-ynoic acid by having a methylene interrupted unsaturated system. The C20 acetylenic acid shows that the capability of mosses to synthesize(More)
Scopolamine produces rapid and significant symptom improvement in patients with depression, and most notably in patients who do not respond to current antidepressant treatments. Scopolamine is a nonselective muscarinic acetylcholine receptor antagonist, and it is not known which one or more of the five receptor subtypes in the muscarinic family are(More)
We describe a surface determinant shared by human monocytes and cells of the megakaryocytic axis that has been identified using a mouse monoclonal antibody. This monocyte-platelet antigen (MPA) is expressed on all (greater than 99%) of peripheral blood monocytes, platelets, and megakaryocytes. It is also expressed weakly on the monocytic cell line U937 and(More)
Spiral volumetric computed tomography (CT) was used prospectively in 20 patients with a suspected solitary pulmonary nodule less than 1 cm in diameter on plain chest radiographs. Four additional nodules were detected with spiral CT than were detected with conventional CT. This technique required a 12-second breath hold; patient cooperation was excellent.
In serum-starved NIH 3T3 clone 7 fibroblasts, choline phosphate (ChoP) (0.5-1 mM) and insulin synergistically stimulate DNA synthesis. Here we report that ATP also greatly enhanced the mitogenic effects of ChoP (0.1-1 mM) both in the absence and presence of insulin; maximal potentiating effects required 50-100 microM ATP. The co-mitogenic effects of ATP(More)
A major goal of this work was to determine in NIH 3T3 fibroblasts whether the recently described effects of H2O2 on phospholipase D-mediated hydrolysis of phosphatidylethanolamine (PtdEtn) and phosphatidylcholine (PtdCho) are mediated by similar or different mechanisms. While exposure of NIH 3T3 fibroblasts to H2O2 stimulated the hydrolysis of both PtdEtn(More)
We have shown that in an estrogen receptor-negative multidrug-resistant subline of MCF-7 human breast carcinoma cells longer-term (24 h), but not shorter-term (30 min), treatments with clinically relevant (2-5 microM) concentrations of tamoxifen (TAM) inhibited phorbol ester-stimulated phospholipase D (PLD) activity by 50-80%. TAM caused these inhibitory(More)