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Magnetic bead isolation of neutrophil plasma membranes and quantification of membrane-associated guanine nucleotide binding proteins.
A protocol for isolation of neutrophil plasma membranes utilizing a plasma membrane marker antibody, anti-CD15, attached to superparamagnetic beads was developed. Cells were initially disrupted byExpand
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Helodermin-like peptides in thyroid C cells: stimulation of thyroid hormone secretion and suppression of calcium incorporation into bone.
Helodermin is a vasoactive intestinal peptide-like peptide in the salivary gland venom of the lizard Heloderma suspectum. Helodermin-like immunofluorescence was observed in the parafollicular (C)Expand
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Pituitary adenylate cyclase-activating peptide (PACAP), a VIP-like peptide, has prolonged airway smooth muscle relaxant activity
Pituitary adenylate cyclase-activating peptide (PACAP), a widely distributed peptide belonging to the vasoactive intestinal peptide (VIP) family of peptides, stimulates the accumulation of cyclicExpand
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Vascular effects of pituitary adenylate cyclase activating peptide: a comparison with vasoactive intestinal peptide
The effects of pituitary adenylate cyclase activating peptide (PACAP) on the blood pressure of the anesthetized rat and on the isolated rat tail artery were investigated and compared to those ofExpand
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Receptor binding kinetics and cellular responses of six N-formyl peptide agonists in human neutrophils.
The goal of this study was to elucidate the relationships between early ligand binding/receptor processing events and cellular responses for the N-formyl peptide receptor system on human neutrophilsExpand
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Adrenergic and cromolyn sodium modulation of ECL cell histamine secretion.
The histamine secreting enterochromaffin-like (ECL) cell is now recognized as the principal regulator of gastric acid secretion. Histamine is not only a primary modulator of acid secretion, but mayExpand
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Helodermin-like peptides in noradrenaline cells of adrenal medulla
Helodermin, a VIP/secretin-like peptide, was first isolated from the venom of the lizard Gila monster. Small amounts of helodermin-like peptides have since been detected in many mammalian tissues.Expand
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Helospectin-like peptides in the gastrointestinal tract: Immunocytochemical localization and immunochemical characterization
Helospectins I and II are two non-amidated, vasoactive intestinal peptide (VIP)-like peptides, isolated from the salivary gland venom of the lizard Heloderma horridum. Helospectin I has 38 amino acidExpand
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Neuropeptides of the vasoactive intestinal peptide/helodermin/pituitary adenylate cyclase activating peptide family elevate plasma cAMP in mice: comparison with a range of other regulatory peptides
A number of regulatory peptides were investigated for their ability to elevate plasma cAMP. Pituitary adenylate cyclase activating peptide (PACAP)-27, PACAP-38, helodermin, helospectin I and II,Expand
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Helodermin- and helospectin-like immunoreactivities in the rat brain: An immunochemical and immunohistochemical study
Helodermin is an amidated peptide of 35 amino acid residues isolated from the lizard Heloderma suspectum. Homologous peptides, helospectins I and II, peptides of 38 and 37 amino acid residues,Expand
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