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Query: UMLS:C0033774 (pruritus)
 14,546 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Atopy should be considered an immunological disorder that may result in several clinical conditions including respiratory disease, allergic dermatitis, food allergy dermatitis, and perhaps flea allergy dermatitis. The clinical course of the disease tends to fluctuate from season to season, which makes objective evaluation of injection therapy difficult. The disease is subject to both familial and environmental influences, and dogs maintain the atopic state throughout their life. The disease cannot be cured; however, a combination of symptomatic and specific injection therapy usually provides adequate control of the clinical signs. Owners of atopic dogs should appreciate that their pet has inherently itching skin, a cure for which is unlikely to be found.
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PMID:Atopy. 15 78

A controlled, cross-over trial was carried out to compare the efficacy and safety of oxatomide vs disodium chromoglycate (DSCG) for treating food allergy and intolerance. Twenty patients (15F, 5M; mean age 36.6 years), with chronic urticaria (twelve patients) or eczema (eight patients) caused by food allergy (ten cases) or food intolerance (ten cases), were treated with oxatomide (60 mg/day in a single evening administration) and with DSCG (2000 mg/day) for six weeks. The two treatments were separated by a 3-week wash-out period. All the patients completed the trial. During the treatment, both drugs succeeded in controlling the symptoms. With oxatomide, the wheals totally disappeared from 75% of the patients (p = 0.00135), the eczematous lesions disappeared from 64% (p = 0.056), and the itching from 70% (p = 0.00012); the figures for DSCG were 33%, 50% (p = 0.038) and 50%, respectively. Both drugs were well tolerated and there was no need to discontinue the treatment of any of the patients.
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PMID:Controlled study of oxatomide vs disodium chromoglycate for treating adverse reactions to food. 135 63

Fifty-two children with atopic dermatitis were investigated with the mixed-food radio-allergosorbent test (RAST) and the skin provocation test 'Skin Application Food Test' (SAFT). The mixed-food RAST is a commercially available test with multiple allergens on one disk. The disk contains 6 common food allergens: cow's milk, egg, peanut, soy, codfish and wheat. The SAFT is a system with which foods are applied to the skin in the state in which they are consumed. This test system is routinely used in our subdivision of Paediatric Dermatology in Sophia Children's Hospital. In some children, atopic dermatitis grew worse after a positive SAFT reaction. In 50% of the 38 children with food allergy a correlation was found between exacerbation/induction of atopic dermatitis and consumption or direct skin contact of foods to which the child was allergic. Due to direct skin contact of foods, atopic dermatitis can grow worse with sudden attacks of pruritus, especially on the hands and in the face. The SAFT imitates the naturally occurring symptoms, is child friendly and easy to perform. The mixed-food RAST can be used as a screening test to identify the children with atopic dermatitis and an atopic immune response to foods, so possibly food allergy. Further investigations of the sensitivity of the target organ (in atopic dermatitis: the skin) and the usefulness of the SAFT are then indicated.
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PMID:[Immunologically mediated contact urticaria caused by foods in young children with constitutional eczema]. 163 98

We reported two cases of acute recurrent pancreatitis lasting for 8 and 10 years, respectively, and characterized by acute abdominal pain associated with an increased serum level of pancreatic enzymes and in one case transient enlargement of the pancreas on sonography and CT scan. Exocrine and endocrine pancreatic function remained normal. Pain attacks were associated with headache or typical migraine, myalgia, pruritus, and diarrhea. In one case only, the IgE serum level was increased. In both cases, the symptoms were reproduced in the 2 h following the consumption of some particular food and cured for years by the suppression of this food and the use of cromoglycate, but recurred 1 month to 3 years after this treatment was stopped, to be again healed by the same treatment. We suggest that these cases are due to food allergy and that food allergy could be a rare cause of acute recurrent pancreatitis. Responsible foods were beef (twice), milk, potato, fish, and eggs, which is in agreement with the frequency of food allergens in southwestern Europe.
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PMID:Is food allergy a cause of acute pancreatitis? 210 39

A case of lymphonodular hyperplasia as a cause for lower gastrointestinal bleeding in a 6 year-old child is reported. Bleeding associated with peribuccal eczema and buccal itching after eating some foods, all regressing on restricted diets, suggest the possible role of a food allergy. Digestive and cutaneous signs improved with oral sodium cromoglycate associated with restricted diet.
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PMID:[Proctorrhagia secondary to lymphonodular hyperplasia revealing a food allergy]. 234 50

A total of 65 patients with food allergy which manifested primarily by disorders of the gastrointestinal tract, bronchi and skin were placed under observation. The patients were administered sodium chromoglycate (nalcrom) per os in a dose of 200 mg 4 times a day for 2-3 weeks, in part of cases up to 3 months and even up to 1-1.5 year. The skin manifestations of allergy (pruritus, urticaria, Quincke's edema, and eczematous rash), abdominal pain, diarrhea, vomiting, bronchospasm, rhinitis, and conjunctivitis disappeared. At the same time the majority of the patients demonstrated the reduction of the intensity of skin responses to the administration of different food antigens, the decrease of the antibody titer in blood serum in response to food antigens, and of the IgE content in blood. The side effects (nausea, heartburn, intensification of skin itch and abdominal pain) were noted in 4 cases.
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PMID:[Treatment of patients with food allergy using Nalcrom]. 249 73

Radioimmunological tests were carried out in 180 children with pruritus and 167 children with pruritus and allergic respiratory diseases. Difference between these groups was statistically insignificant in case of food allergy. Results of RAST were more often positive in case of respiratory allergy in the patients with pruritus and coexisting allergic respiratory diseases than in patients with skin involvement only. Reaction was more intense and allergy polyvalence measured with RAST was higher. All differences were statistically significant (p less than 0.001 or 0.01). Mean IgE levels was higher in children of all age groups in case of pruritus coexisting with allergic respiratory diseases.
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PMID:[Radioimmunologic tests in children with pruritus and with a combination of pruritus and allergic respiratory disease]. 263 38

Eighteen patients affected by itching, urticaria, eczema, angioedema, and asthma related to food-stuff intake were studied and classified in two groups (true food allergy and pseudoallergy) on the basis of clinical data, skin prick tests, total and specific IgE levels (PRIST and RAST) and double-blind challenge test. Autologous mixed lymphocyte reaction (AMLR) and T cell activation markers were thought to be tests possibly useful to discriminate between 'true' food allergy and 'pseudoallergy'. The present study failed to show either a significant increase in T cell activation markers (MLR4, Ia) or a significant decrease in AMLR proliferation in such subjects as compared to normal controls. In addition, we found no differences between 'true' allergic and 'pseudoallergic' patients on the basis of the parameters evaluated. Although the AMLR defect was reported both in asthma and in dermatitis, and therefore was thought to be related to atopy, the present data do not confirm this hypothesis in 'true' food allergy.
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PMID:T cell activation surface markers and autologous mixed lymphocyte reaction do not differ in true and pseudo food allergy. 295 85

The Restaurant syndromes can be caused by five major factors: food allergens, sulfites, monosodium glutamate (MSG), tartrazine, and scombroidosis (and other seafood poisoning). A history of atopy and ingestion of known food allergens such as peanuts, egg, fish, and walnuts, together with positive results of skin tests or RAST to these foods, will favor a diagnosis of food allergy. Allergic reactions to peanuts have produced fatalities in minutes through an IgE mediated reaction. An extremely rapid onset (minutes) of symptoms consisting of flushing, bronchospasm and hypotension is consistent with a sulfite reaction. Burning, pressure, and tightness or numbness in the face, neck, and upper chest following ingestion of Chinese food favors a diagnosis of adverse reaction to MSG. Also, development of late onset bronchospasm (up to 14 hours) may be related to MSG reactions. Bronchospasm and urticaria in a patient with a history of aspirin intolerance suggests tartrazine sensitivity. If everyone ingesting a fish meal develops flushing, urticaria, pruritus, gastrointestinal complaints, or bronchospasm, this implies scombroidosis, ciguatera, or other seafood poisoning. Finally, severe headache or hypertension can result from ingestion of naturally occurring amines, such as tyramine (cheese, red wine) and phenylethylamine (chocolate). A double-blind oral challenge test may be the only way of confirming the diagnosis for most of the etiological factors of the Restaurant syndromes. The treatment of choice for acute reaction is epinephrine followed by antihistamine. Proper labeling and avoidance of these ingredients in sensitive individuals are the best preventive measures.
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PMID:The restaurant syndromes. 330 66

Based on the disagreements about the role of atopy in the condition known as atopic dermatitis, it is not surprising that there have been divergent views concerning the appropriate treatment of the disease. A large population of physicians, including most dermatologists and some allergists, believe that the fundamental approach to a successful outcome of the dermatitis is to control the itching and to improve the chronic dryness of the skin. Following a completely different approach are physicians, including many allergists, who are convinced that atopic dermatitis usually involves an imbalance of, or an abnormality in, the immunologic system. For this group, one of the main features of treatment is to remove or avoid offending allergens. Because of the demonstrated pathogenic role of food allergy in the majority of patients with eczema, any child with chronic moderate or severe disease that requires daily medications should be considered for allergic evaluation of this disorder. Further studies still need to be performed concerning the role of environmental and food allergens and the early- and late-phase reactions in atopic dermatitis.
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PMID:An allergist's view of atopic dermatitis. 352 80


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