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Biomedical subjects

E del-Río

Publications and source records attributed to E del-Río.

7 recordsLinked to original sources
PubMed1993

Type IV allergy to rubber additives: a 10-year study of 686 cases.

BACKGROUND: Rubber additives, mainly vulcanizers and antioxidants, are increasingly a cause of contact dermatitis. OBJECTIVE: The aim of the present study was to determine the frequency of type IV allergy to rubber additives. METHODS: Seven thousand patients seen during a 10-year period were evaluated. Of them, 4680 were patch tested with the standard series recommended by the Spanish Group for Research of Contact Dermatitis (GEIDC) and a series of individual rubber additives. RESULTS: A total of 686 patients (14.7% of those patch tested) had one or more positive reactions to rubber additives. Of these, 582 (84.8%) were men and 104 (15.2%) were women. The incidence of rubber sensitization was especially high among construction workers (47.0%). CONCLUSION: Rubber additives are a common cause of occupational contact dermatitis, particularly in construction workers. We postulate that rubber gloves and boots (utilized to avoid contact with sensitizing substances) themselves may be a common cause of contact dermatitis. The high incidence of allergy to some rubber additives, such as thiurams and carbas, indicates that their replacement by other less sensitizing vulcanizers is advisable.

Adolescent↗
PubMed1993

Agminated blue nevi: case report and review of the literature.

Blue nevi may rarely appear in multiple form and grouped in a circumscribed area, a pattern of arrangement that is more properly designed under the term agminated blue nevi. In this paper a new case with light and ultrastructural studies is described, and the previously reported cases are reviewed. Histologically, there was a characteristic perifollicular arrangement of dermal melanocytes, most of which showed ultrastructurally an extracellular sheath. Agminated blue nevi seem to be benign lesions, but because of their rarity, no definite prognosis can be given.

Extracellular Matrix↗