(n.) The nettle rash, a disease characterized by a transient eruption of red pimples and of wheals, accompanied with a burning or stinging sensation and with itching; uredo.
Example Sentences:
(1) This initial observation of release of eosinophil chemotactic factor of anaphylaxis in vivo along with histamine assigns the mast cell a central role in cold urticaria.
(2) We report an episode of hypotension, tachycardia, bronchospasm and urticaria following application of a non-ionic contrast medium (Iopamidol) during isoflurane anaesthesia.
(3) This suggests that common food additives are seldom if ever of significance as precipitating factors in chronic urticaria or atopic dermatitis.
(4) An almost equal sex distribution was found in chronic urticaria (51.9% female).
(5) The antimalarial drugs can clear up skin lesions in patients with polymorphous light eruption and solar urticaria who cannot obtain relief with topical sunscreens and in some patients with porphyria cutanea tarda.
(6) Both before and after application of the stimulus, the walls of the superficial dermal vessels of the patients with dermographism were thinner and contained less extracellular matrix material than vessel walls of the patients with cold-induced urticaria.
(7) Localized heat urticaria is a rare disorder, in which the nature of the mediator is not fully established.
(8) (2) One case (1.3%) of minor degree of urticaria was found as a side effect, and one case each of eosinophilia and elevation of GOT, GPT and Al-P was observed as abnormal laboratory value.
(9) The drug was withdrawn in 6 patients--lack of response in one, thrombocytopenia in one, urticaria in one, rash in one, and granulocytopenia in 2.
(10) A young woman with diabetes mellitus developed chronic urticaria after changing from isophane been insulin suspension to isophane beef-pork insulin suspension.
(11) A frequent cause of contact urticaria is skin exposure to the common stinging nettle (Urtica dioica).
(12) Different reaction types seem to have been responsible for the occurrence of the urticaria.
(13) The second-generation H1-receptor antagonists are replacing the first generation H1-receptor antagonists in the symptomatic treatment of allergic rhinoconjunctivitis, and in relieving pruritus in patients with urticaria.
(14) These results indicate that a 10 day trial of both H1 and H2 antihistamines may be useful in patients with chronic urticaria resistant to all other standard treatment modalities.
(15) A case is here reported of a 35 year old woman with a history of urticaria following anti-tetanus serum and penicillin injections, who frequently ate exotic fruit, and who was intolerant to alcohol.
(16) In children, manifestations of IgE-mediated food allergy (often in association with other immune mechanisms) include self-limiting and immediate reactions (e.g., urticaria, wheeze) and chronic diseases (food-sensitive enteropathies, eczema).
(17) Histamine release from peripheral blood basophils challenged with C5a, f-met-peptides and calcium ionophore was studied in patients with cold urticaria before and after exposure to low environmental temperatures.
(18) Many solar urticaria patients may benefit from the use of antihistamines.
(19) The predominant signs were facial edema, flushing, urticaria, bronchospasm, tachycardia, and hypotension.
(20) The association of chronic urticaria with C3NeF without clinical and biological signs of membranoproliferative glomerulonephritis and partial lipodystrophy has not to our knowledge been reported before.
Wheal
Definition:
(n.) A pustule; a whelk.
(n.) A more or less elongated mark raised by a stroke; also, a similar mark made by any cause; a weal; a wale.
(n.) Specifically (Med.), a flat, burning or itching eminence on the skin, such as is produced by a mosquito bite, or in urticaria.
(n.) A mine.
Example Sentences:
(1) Three patients reacted with a wheal size greater than or equal to a histamine control at a dilution of 1:1,000 and 3 patients at 1:100.
(2) The validation of the VSC technique with venous occlusion plethysmography (VOP) showed that the increase of time of disappearance of the wheals is well correlated with the increase of capillary permeability demonstrated by VOP.
(3) Cimetidine, an H2-receptor antagonist slightly reduced the effect of clonidine on the wheal and flare reaction.
(4) Numerous mast cells were degranulated in late wheals, as shown by electron microscopy.
(5) The wheal and erythema reaction caused by intracutaneous application of 5 mug histamine can be inhibited by applying fenoterol in doses from 100--400 mug in form of a metered aerosol on the skin 5 min before the injection of histamine.
(6) Treatment with astemizole, as measured at the end point of each patient's treatment and compared to placebo, resulted in significant improvement of pruritus, erythema, number of wheals, frequency of urticarial attacks, and control of urticaria (p less than or equal to 0.03).
(7) The surface areas of the wheal and flare responses were measured by planimetry.
(8) Substance P produces dose-related wheal and flare reactions in human skin.
(9) Clinically, they are characterised by an immediate wheal and flare or a delayed papular to eczematous process.
(10) The flare response to SP and histamine was suppressed by capsaicin pretreatment whereas the wheal was enlarged.
(11) Histamine caused dose-related increases in blood flow and in areas of wheal and erythema in human skin.
(12) The patient developed an immediate type of skin reaction with erythema and whealing following monochromatic irradiation at 400 nm, but did not have any abnormal immediate skin reaction after exposure to natural sunlight.
(13) The allergen-triggered wheal and flare reaction in ovalbumin sensitized guinea pigs was potentiated by MK 422 and the late phase reaction of the inflammatory response was especially augmented.
(14) Except at high doses the local vasodilatation induced by CGRP was not associated with a wheal and flare as seen with histamine, substance P, and VIP.
(15) Two other patients with sunlight-induced solar urticaria, who had an erythema-and-wheal reaction during and after exposure to sunlight, had no suppressive wave bands in either the UV or visible-light range.
(16) There were also 3 highly allergic children, with immediate hypersensitivity reactions to other food, who, despite having never been exposed to egg, developed large skin prick test wheals to egg white.
(17) It is concluded that the wheal need not be associated with the Provocation-Neutralisation technique, and that a neuropsychological basis for the Provocation-Neutralisation response should be explored.
(18) Pressure wheals were characterized by a mild mononuclear perivascular infiltrate and by patchy dermal infiltrates of eosinophils.
(19) Sections from the wheals of recent onset 24 hours old or less taken from 11 patients with urticaria were examined by electron microscopy.
(20) Five minutes after an id injection of PHA (bactophytohaemoagglutinin M, Difco, 1 mg), mix monilieae, mix tricophyton and PPD Berna, she showed an extensive wheal and flare reaction in the PHA injection area, eyelid oedema and respiratory distress.