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M D Del Pozo

Publications and source records attributed to M D Del Pozo.

9 recordsLinked to original sources
PubMed2006

Rosemary contact dermatitis and cross-reactivity with other labiate plants.

Rosemary, a plant belonging to the labiate family, is frequently used in the making of cosmetics and also for medicinal purposes. There are few reported cases of contact dermatitis due to this plant. Here we present 1 case and asses the existence of cross-reactivity with plants from the same family. 53-year-old man with several episodes of a pruritic and erythematous eruption that resulted in peeling of the skin, after applying rosemary alcohol, on the chest reported. Epicutaneous tests were done with the standard European series (GEIDC), with the commercial plant series (Bial-Aristegui) and with plants from the labiate family. Results were positive for 3 of 4 labiate species tested. we present a case of rosemary contact dermatitis, where we have found cross-reactivity with 3 of 4 species tested from the same family.

Cross Reactions↗
PubMed2005

Occupational asthma caused by white mushroom.

The commercial growing of white mushroom (Agaricus bisporus) is a frequent activity in certain Spain regions as La Rioja. We report two cases of white mushroom workers suffering from asthma caused by hypersensitivity to basidiocarp and spores of white mushroom.

Adult↗
PubMed1997

Anisakis simplex, a relevant etiologic factor in acute urticaria.

Anisakis simplex, a parasite of fish and cephalopods, can induce IgE-mediated reactions. This study aimed to determine the etiologic role of A. simplex in patients affected by urticaria/angioedema (AE) or anaphylaxis. We studied 100 adult subjects suffering acute episodes of urticaria/AE, by anamnesis, prick tests with A. simplex and fish-mix extracts, and total and specific IgE to both A. simplex and cod. The following criteria of A. simplex allergy were considered: 1) urticaria/AE within 6 h after fish ingestion; 2) specific IgE to A. simplex; 3) positive prick test to A. simplex extract; 4) exclusion of other suspected causes. Double-blind, placebo-controlled food challenge was not carried out because ethical considerations forbid challenge with a parasite. Specific IgE to A. simplex (> 0.7 kU/l) was found in 22 subjects, but only eight were diagnosed as having A. simplex allergy. Other allergens were involved in 37 patients, and 55 cases were considered idiopathic. Specific IgE to fish (> 0.7 kU/l) was found in two patients, but only one was diagnosed as having fish allergy. We concluded that A. simplex is an important etiologic factor in acute urticaria. We suggest that it should be considered in cases of urticaria/AE or anaphylaxis, especially after fish ingestion.

Adolescent↗
PubMedDate not supplied

Anisakis simplex induces not only anisakiasis: report on 28 cases of allergy caused by this nematode.

Anisakis simplex R., parasitizes several sea-fish and cephalopods. This parasite induces not only anisakiasis but also anaphylactic reactions, as has recently been confirmed. We present 28 patients with immediate hypersensitivity to Anisakis simplex, developed after parasitized fish ingestion. Each case was diagnosed by suggestive anamnesis, skin prick tests with an A. simplex extract, specific IgE detection in serum (CAP System), and histamine release test. The clinical manifestations were urticaria/angioedema in all 28 patients and respiratory arrest in one. Paradoxically, the patients reported tolerance to ingestion of the same kind of fish between and after the allergic episodes. Type 1 hypersensitivity to A. simplex was demonstrated by a positive skin-prick test reaction, specific IgE detection in all cases and positive histamine release in a representative case. Sensitization to the proteins of the fish themselves was ruled out by negative reactions of the same tests in all cases. It was also proven that the allergen/s involved may be resistant to cooking and deep freezing. Hence, anaphylactic reactions may result either from infection or, more frequently, from mere exposure to the allergen. The results confirm that A. simplex can develop IgE-mediated anaphylactic reactions, the clinical severity of which was pronounced in the patients examined. Physicians must take into account that the consumption of parasitized fish may cause severe reactions, even if fish of the same kind is subsequently tolerated. A higher frequency of reactions of this type can be expected in countries where fish is a staple diet.

Adolescent↗