Results 151 to 160 of about 2,308 (193)

Kinins in ant venoms—A comparison with venoms of related hymenoptera

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1989
1. Venom preparations have been made of six ant, one pompilid wasp, two mutillid wasp, and four social wasp species. 2. The venoms were analysed pharmacologically in order to detect kinin-like activity. 3. Due to the small amounts of venoms available only a cascade of smooth muscle preparation could be used. 4.
Piek, T., Schmidt, J. O., de Jong, J. M., Mantel, P.   +3 more
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51 Fire ant venom hypersensitivity

Journal of Allergy and Clinical Immunology, 1983
Abstract Levels of IgE antibody to fire ant whole body extract (FA-WBE) and fire ant venom (FAV) were evaluated in 60 patients with clinical histories of fire ant sting hypersensitivity and 11 frequently stung individuals without significant clinical reactivity to fire ant. An overlap of levels of IgE antibody to FA-WBE and FAV was seen between groups
B.R. Paull, T.H. Coghlan, S.B. Vinson
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A Harvester Ant Venom: Chemistry and Pharmacology

Science, 1978
The mammalian toxicity of the potently algogenic venom of the ant Pogonomyrmex badius is greater than that reported for any other insect venom. This enzyme-rich venom contains high concentrations of phospholipase A 2 and B, hyaluronidase, acid phosphatase, lipase, and esterases.
J O, Schmidt, M S, Blum
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Venom chemistry of ants in the genusMonomorium

Journal of Chemical Ecology, 1982
A comparative analysis of the venomous alkaloids produced by ant species in the subgenusMonomorium of the genusMonomorium has been undertaken. All species produce mixtures of unsymmetricaltrans-2,5-dialkylpyrrolidines, but the proportions of the constituents may vary considerably between species.
T H, Jones, M S, Blum, R W, Howard, C A, McDaniel, H M, Fales, M B, Dubois, J, Torres   +6 more
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Hypersensitivity to Fire Ant Venom

Annals of Allergy, Asthma & Immunology, 1996
Reading this article will reinforce the reader's knowledge of the taxonomy, origin, and distribution of fire ants and will increase his ability to diagnose and manage reactions caused by the two imported species, Solenopsis invicta and richteri. This review will also enhance the reader's knowledge of the available diagnostic methods and therapeutic ...
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Anabaseine: Venom Alkaloid of Aphaenogaster Ants

Science, 1981
Anabaseine, a tobacco alkaloid, is identified as a poison gland product in Aphaenogaster ants, in which it functions as an attractant.
J W, Wheeler, O, Olubajo, C B, Storm, R M, Duffield   +3 more
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Prevention of anaphylaxis with ant venom immunotherapy

Current Opinion in Allergy and Clinical Immunology, 2003
Worldwide, eight genera of ants have been associated with sting allergy. Until recently only whole ant body extracts have been used for immunotherapy. The purpose of this review is to examine recent advances in the understanding of ant venom allergy and treatment using venom immunotherapy.Public health problems due to severe ant sting anaphylaxis are ...
Simon G A, Brown, Robert J, Heddle
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Teasing apart ant venom

Science, 2018
Organismal Biology![Figure][1] The giant red bull ant has complex multifunctional venom. PHOTO: KAAREL OLESK/GETTY IMAGES Ant venoms are primarily made up of poorly characterized polypeptides. Robinson et al. combined transcriptomics and mass spectrometry–based proteomics to determine the mechanism of action of giant red bull ant venoms.
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Histamine release by fire ant (Solenopsis) venom

Toxicon, 1978
Abstract Venoms from the fire ants Solenopsis invicta and S. geminata were free of detectable histamine but caused histamine release from rat peritoneal mast cells in vitro. On a per ant basis, venom from S. invicta ( ed 50 = 0·12 venom reservoirs/ml ) was four times as potent as venom from S.
G W, Read, N K, Lind, C S, Oda
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Fire Ants Feed Their Nestmates with Their Own Venom

SSRN Electronic Journal, 2022
Venom secretion is widely used by ants for disease control and more generally as an external surface disinfectant. Here we report evidence that Solenopsis invicta feed their nestmates with their own venom. Venom alkaloids were found in crops and midguts of ants at concentration levels that have previously been reported as effective against various ...
Jian, Chen, Yuzhe, Du
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