Results 171 to 180 of about 66,422 (214)
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Patterns of histamine release in the brain
Agents and Actions, 1991The pattern of histamine release has been investigated in various brain areas of anaesthetized cats and conscious, freely moving rats by the push-pull technique. In the hypothalamus, medial amygdaloid nucleus and mamillary body of the anaesthetized cat, histamine was found to be released according to an ultradian rhythm with a frequency of 1 cycle per ...
A, Philippu, H, Prast
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Myocardial infarction and histamine release
Agents and Actions, 1986On the basis of previous data suggesting the involvement of cardiac histamine in ischemic heart disease (IHD), we evaluated plasma histamine (H) and creatine-kinase isoenzyme (CK-MB) level in cardiac and healthy subjects. 20 patients with acute myocardial infarction (AMI) (10 developing AMI in Hospital, thus making possible the detection of plasma H ...
F, Zaca +7 more
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Histamine Release by Contrast Media
Radiology, 1971The blood draining organs with a high histamine content was sampled and elevation of plasma histamine was found to result from injections of certain contrast media. All methylglucamine contrast media tested to date (acetrizoate, diatrizoate, and iodipamide) produced such elevations.
E C, Lasser +3 more
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Inhibition of Histamine Release in Anaphylaxis
Nature, 1955ALTHOUGH the effects of anaphylaxis and chemical histamine releasers are similar and mainly attributable to histamine release, the mechanism by which the release occurs in the two cases is fundamentally different. We have found that lack of oxygen and also inhibitors of oxidative and glycolytic metabolism have a powerful inhibitory action on the ...
J L, MONGAR, H O, SCHILD
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Development of a microassay for histamine release
Clinical & Experimental Allergy, 1987SummaryA microassay has been developed to measure histamine release from both washed human leucocytes and whole blood, in which blood samples can be diluted down to 1:20 without affecting their sensitivity to antigen. The sensitivity and reproducibility of the single isotope histamine radioenzymatic assay [REA] was compared to the conventional ...
P M, Clinton, R D, Murdoch, D M, Kemeny
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Histamine Release in Anesthesia and Surgery
Allergy and Asthma Proceedings, 1985Histamine release can occur in response to anaphylactic or chemically mediated anaphylactoid reactions during general anesthesia. Narcotics and muscle relaxants have been demonstrated both in vitro and in vivo to cause significant histamine release. This histamine release appears to be directly related to changes in the cardiovascular system that are ...
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Isotope assay of histamine release
Biochemical Medicine, 1974Abstract The single isotopic enzymatic histamine assay system has been adopted for the studying of the release of histamine from sensitized human leukocytes when challenged with the appropriate allergen. It is a simple, rapid, sensitive, and reproducible method based on the use of the enzyme histamine N-methyltransferase and the high specific ...
M N, Blumenthal +3 more
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Release of histamine by substance P
Naunyn-Schmiedeberg's Archives of Pharmacology, 19811. The basic peptide substance P causes histamine release from peritoneal mast cells of the rat in vitro whereas the closely related neutral peptides eledoisin and physalaemin do not. 2. Infusion of substance P (7.4 nmol min-1), but not of eledoisin (8.4 nmol min-1) or physalaemin (7.9 nmol min-1), into the rat hindquarter preparation caused a more ...
F, Erjavec +6 more
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Histamine releasing factor is not an interferon
Agents and Actions, 1986The speculation that human histamine releasing factor (HRF) - a lymphokine that releases histamine from human tissues, might be the same as gamma-interferon was investigated. The speculation arose from the fact that HRF and gamma-interferons are both lymphokines and have both been reported to affect histamine release from human basophils.
I C, Ezeamuzie, E S, Assem
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Histamine release by vagal stimulation
Agents and Actions, 1983The content of acetylcholine and histamine in the effluent of isolated, vagally innerved guinea-pig auricles was determined. Spontaneous or stimulation-induced overflow of acetylcholine was detected only in the presence of acetylcholinesterase inhibitors.
BLANDINA, PATRIZIO +4 more
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