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The lipid requirements of the Torpedo californica nicotinic acetylcholine receptor (nAChR) were assessed by reconstituting purified receptors into lipid vesicles of defined composition and by using photolabeling with 3-trifluoromethyl-3-(m-[125I]iodophenyl)diazirine ([125I]TID) to determine functionality. Earlier studies demonstrated that nAChRs… (More)
The photoactivatable sterol probe [3alpha-(3)H]6-Azi-5alpha-cholestan-3beta-ol ([3H]Azicholesterol) was used to identify domains in the Torpedo californica nicotinic acetylcholine receptor (nAChR) that interact with cholesterol. [3H]Azicholesterol partitioned into nAChR-enriched membranes very efficiently (>98%), photoincorporated into nAChR subunits on an… (More)
Two cases of endometriosis in the uterine wall cesarean section scar tissue are presented. The diagnosis was confirmed by histopathologic examination of the scar tissue taken after total abdominal hysterectomy.
Eight serum specimens collected from dengue patients in Guatemala and Honduras during the Central American epidemic of 2007 were analyzed. Virus identification and serotyping performed by a nested RT-PCR assay revealed two DENV-1 isolates from Guatemala, four DENV-2 isolates, two each from Guatemala and Honduras, and two DENV-4 isolates from Honduras. Viral… (More)
We described our methods of screening mice for inborn errors of metabolism including metabolic storage diseases, disorders of amino acid metabolism, and organic acidemias. Our screening program consisted of histopathology, quantitative serum amino acid analysis, and urinary organic acid analysis. In this preliminary study, we tested mice representing 28… (More)