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A vasoconstrictor; (–)-enantiomer of nordefrin; rapidly increases blood pressure and heart rate in anesthetized dogs (1-5 UG/kg); in combination with mepivacaine, increases systolic arterial blood pressure in anesthetized dogs (0.514 and 1.542 mg/kg)
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A peripherally acting antitussive agent; inhibits the citric acid-induced cough reflex in conscious guinea pigs but not the cough reflex induced by electrical stimulation of the afferent superior laryngeal nerve in anesthetized guinea pigs (ED50s = 5.5 and >20 mg/kg, respectively); prevents BALF eosinophil and neutrophil infiltration in an ovalbumin-sensitized guinea pig model of allergic airway inflammation; inhibits increases in tracheal and bronchial plasma exudation induced by cigarette smoke in anesthetized guinea pigs at 30 mg/kg
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A protein-modifying agent; introduces sulfhydryl groups to proteins; used in conjunction with the protein cross-linking reagent SMCC in the conjugation of proteins with IgG antibodies for use in ELISAs
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A flavone; has antioxidant activity in a TRAP assay at 1 μg/ml; inhibits sucrose hydrolysis by rat intestinal α-glucosidase and ATPase activity of the SARS coronavirus helicase nsP13 (IC50s = 12 and 0.86 μM, respectively); decreases LPS-induced NO release and iNOS and TNF-α mRNA expression in RAW 264.7 macrophages at 50 μM; decreases tumor weight and volume in an HT-1080 human fibrosarcoma mouse xenograft model at 0.5 μg/g
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An ansa macrolide; inhibits polymerization and induces depolymerization of bovine brain tubulin (EC50s = 12 and 43 µM, respectively); inhibits sea urchin egg mitosis at 10 µM and decreases proliferation of KB nasopharyngeal cancer cells (EC50 = 0.19 UG/ml)
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S-methyl-L-Thiocitrulline is a potent NOS inhibitor with selectivity toward the neuronal isoform compared to eNOS and iNOS. For human enzymes, it exhibits Ki values of 1.2, 11, and 40 nM for nNOS, eNOS, and iNOS, respectively.{1325,1293}
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A colorimetric substrate for trypsin and papain; enzymatic cleavage releases pNA, which can be quantified by colorimetric detection at 405 nm as a measure of trypsin or papain activity
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A heterobifunctional building block; has been used in the conjugation of oligonucleotides to antibodies for protein detection, as well as in the synthesis of fluorescent BODIPY-etoposide
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A natural monoamine alkaloid that acts as neuromodulator in the central nervous system; stimulates the release of norepinephrine and dopamine and is metabolized by monoamine oxidases as well as other enzymes; intended for forensic and research applications
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