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Biomedical subjects

T Cainelli

Publications and source records attributed to T Cainelli.

At least 37 records · Page 2Linked to original sources

Analytic epidemiology in psoriasis.

The cause of psoriasis has only recently been subject to structured epidemiologic research approach. This is reflected in the scarcity of quantitative knowledge about etiologic factors for psoriasis other than genetics. A schematic model suggests that susceptibility to develop psoriatic lesions includes both genetic and extragenetic predisposing factors. Expression in terms of visible lesions is modulated by precipitating or trigger factors. Unlike many chronic diseases, psoriasis spontaneously waxes and wanes. When assessing factors that trigger the onset of the disease, one must also consider factors that lead to recurrence or exacerbation. Cohort and case-control studies are the main methodologic options for risk assessment. Combination of these techniques and the merging of an epidemiologic approach with basic biologic research are suggested routes to valuable results in this area.

Case-Control Studies↗

Feasibility of a registry of pemphigus in Italy: two years experience. Gruppo Italiano Studi Epidemiologici in Dermatologia (GISED)

BACKGROUND: There are still unanswered questions about optimal treatment strategies and long-term prognosis of pemphigus. The Italian Group for Epidemiologic Research in Dermatology (GISED) started to register pemphigus in March 1990. METHODS: The registry is hospital-based, covering newly diagnosed cases referred to 33 dermatologic centers in the north and the middle-south of Italy. Serum samples were collected at the time of diagnosis, for centralized storage. RESULTS: In the period between March 1990 and December 1991, 110 cases were collected, with 105 retained. Median age at diagnosis was 54, and the man to woman ratio was 0.7. The median lag of diagnosis was 4 months. Seventy-four of 79 patients with pemphigus vulgaris/vegetans and 24 of the 26 with pemphigus erythematosus/foliaceus were given corticosteroid treatment. CONCLUSIONS: A hospital-based registry is feasible and provides useful information about both clinical aspects and management of pemphigus, serving as a basis for developing ad hoc research programs (e.g., formal epidemiologic studies and clinical research).

Adolescent↗

Cutaneous manifestations associated with antiphospholipid antibodies in patients with suspected primary antiphospholipid syndrome: a case-control study.

OBJECTIVE: To study the association of a variety of dermatological manifestations related to vascular abnormalities with antiphospholipid antibodies in patients with suspected primary antiphospholipid syndrome. METHOD: Case-control study. Consecutive patients referred to the coagulation and haemostasis service of a general hospital for the first determination of antiphospholipid antibodies (lupus anticoagulant and anticardiolipin antibodies) and newly diagnosed disorders (for example, thrombocytopenia, thrombotic disorders, and unexplained repeated abortions) were selected. Patients were examined by two dermatologists according to predefined criteria, and information about general characteristics and relevant dermatological and medical histories were collected using an ad hoc questionnaire. The study was limited to patients without evidence of systemic lupus erythematosus. A total of 35 patients was examined; 13 subjects were positive for lupus anticoagulant or anticardiolipin antibodies, or both (cases), and 22 were negative (controls). RESULTS: Moderate to severe livedo reticularis and acrocyanosis were significantly associated with antiphospholipid antibodies, with relative risks of 13.1 (95% confidence interval 1.1 to 149.0) and 8.6 (95% confidence interval 1.1 to 65.1). Capillaritis was also associated with the antibodies. Histories of Raynaud's phenomenon and superficial thrombophlebitis were more common in cases than controls. CONCLUSIONS: This study provides quantitative evidence of the association of antiphospholipid antibodies with several cutaneous diseases in which vascular abnormalities seem to play a major part. The study suggests that these manifestations might appear early in the development of the antiphospholipid syndrome.

Adult↗

Occupational dermatitis from isothiazolinones in the nylon production.

Kathon is a biocide consisting of a mixture of two isothiazolinone derivatives (5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one) in an approximate ratio of 3:1, respectively, and with MgCl2 and Mg(NO3)2 present as stabilizers. The isothiazolinones are marketed under several brand names, and the concentration of the active ingredient varies according to their intended application. At a concentration of 3-15 ppm it shows activity against a wide spectrum of fungi, gram-positive and gram-negative bacteria. Contact allergy to it has been caused by cosmetics and also by products used in the pottery and various other industries. Recently we had the opportunity to observe 6 cases of occupational allergic contact dermatitis from an isothiazolinone mixture named Grotan TK 2 in a large textile industry producing nylon. An oil emulsion containing isothiazolinones is used in the spinning phase of the work cycle to prevent bacterial contamination that would damage yarn quality; furthermore, it helps to decrease the electrostatic charge that is produced by high speed at which the yarn moves and also to decrease the breakage possibility.

Child, Preschool↗

Unusual manifestations of primary cutaneous amyloidosis in association with Raynaud's phenomenon and livedo reticularis.

A patient with unusual manifestations of primary cutaneous amyloidosis, including macules, papules, oedematous plaques and urticarial lesions is described. Raynaud's phenomenon and livedo reticularis were an associated finding. During the acute phase, single doses of systemic corticosteroids resulted in an impressive, long-lasting improvement in cutaneous manifestations.

Adult↗

Development of anthralin short-contact therapy in psoriasis: survey of published clinical trials.

In a survey of clinical trials concerning the efficacy of short-contact therapy with anthralin in psoriasis vulgaris, focusing principally on methodologic issues, twenty-four papers published between January 1982 and December 1989, in English, French, and Italian, were selected. Nine of 24 papers reported on more than one trial, giving a total of 37 clinical trials to be evaluated. A great heterogeneity was evident in many aspects of the design and conduct of these trials, making pooling of results impossible. Most trials suffered from flaws in general methodologic aspects such as randomization and blinding. Limitations in general applicability of results were discussed with reference to the popular use of self-control design and selection of composite indexes (e.g., PASI) as an outcome variable. Published trials are not a reliable guide to clinical decisions concerning short-contact therapy, and some methodologic observations we made could be of general interest in designing clinical trials of psoriasis.

Anthralin↗