Results 171 to 180 of about 3,308 (205)

Isolation of a Hemolytic Component of Fire Ant Venom

Science, 1959
A crystalline hemolytic principle, shown to be a constituent of fire ant venom and having the properties of an amine, was isolated from crude extracts of whole ants. The chromatographic procedure of isolation is described, and a preliminary report is given about some properties of the substance.
G A, ADROUNY, V J, DERBES, R C, JUNG
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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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Novel Pyrrolidines in the Venom of the Ant Monomorium indicum

Journal of Natural Products, 1989
New 2,5-dialkylpyrrolidines found in the venom of Monomorium indicum include trans-2-butyl-5-(4-pentenyl)pyrrolidine [1], trans-2-butyl-5-(6-heptenyl)pyrrolidine [4], trans-5-(5-hexenyl)-2-(4-pentenyl)pyrrolidine [6], trans-5-(6-heptenyl)-2-(5-hexenyl)pyrrolidine [8], and trans-5-heptyl-2-hexylpyrrolidine [16], whose structures were confirmed by ...
T H, Jones, M S, Blum, P, Escoubas, T M, Musthak Ali   +3 more
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Safety and efficacy of fire ant venom in the diagnosis of fire ant allergy

Journal of Allergy and Clinical Immunology, 1992
Thirty-three adult patients who had had systemic allergic reactions to fire ant stings and 33 insect-nonallergic control subjects were skin tested with single lots of Solenopsis invicta (Sol i) fire ant venom (IFAV) and two commercially available imported fire ant whole body extracts (IFA WBEs).
C T, Stafford, S L, Wise, D A, Robinson, B L, Crosby, D R, Hoffman   +4 more
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Neurotoxic kinins from wasp and ant venoms

Toxicon, 1991
Kinins are polypeptides of 9-18 amino-acid residues containing a bradykinin-like sequence, in some cases as part of a molecule. The bradykinin-like sequence is either bradykinin, Hyp3-bradykinin or Thr6-bradykinin. Kinins are neurotoxic components of wasp and ant venoms, causing in the insect CNS a presynaptic block of the cholinergic transmission by ...
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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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New Alkaloids in the Venoms of Fire Ants

Annals of the Entomological Society of America, 1974
A recent comparative analysis of the venom components of 4 species of fire ants ( Solenopsis geminata [F], S. invicta Buren, S. richteri Forel, and S. xyloni MacCook) has demonstrated that their alkaloidal compositions may be of some taxonomic utility (Brand et al. 1972).
John G. Macconnell, Roger N. Williams, John M. Brand, Murray S. Blum   +3 more
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Ant Venoms: Chemical and Pharmacological Properties

Journal of Toxicology: Toxin Reviews, 1992
AbstractStinging ants are now recognized as being of considerable public health significance in both temperate and tropical regions. Many species of ants produce venoms that contain powerful algogens and these secretions may cause severe systemic reactions as well.
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Periodic Graphics: Ant venom and pheromones

C&EN Global Enterprise, 2019
Chemical educator and Compound Interest blogger Andy Brunning homes in on the chemicals that help the insects protect themselves and communicate To download a pdf of this article, visit cenm.ag/antvenom. References used to create this graphic:The Biochemical Toxin Arsenal from Ant VenomsCommunication in AntsAncient Fertility PheromoneAnt Battle Yields ...
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Fire ant venom hypersensitivity. I. Comparison of fire ant venom and whole body extract in the diagnosis of fire ant allergy.

The Journal of allergy and clinical immunology, 1983
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.
B R, Paull, T H, Coghlan, S B, Vinson
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