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A Peris

Publications and source records attributed to A Peris.

At least 37 records · Page 2Linked to original sources
PubMed1990

Occupational asthma caused by inhalation of casein.

Solutions of casein are usually sprayed over the leather in the final stage of tanning. We present the result of a thorough investigation of an atopic tannery worker with occupational asthma. Data from clinical record and metacholine challenges support the occupational source of the patient's symptoms, and positive bronchial challenge with casein clearly defines it as the specific aetiological agent. The presence of specific IgE suggests a hypersensitivity type I mechanism. In the tanning process chromium salts, paraphenylendiamine and formaldehyde have all been included as specific aetiological agents of asthma, but occupational asthma induced by inhalation of casein has not previously been reported.

Adult↗
PubMedDate not supplied

[Hyperuricemia as a risk factor for cerebrovascular accident: a case-control study].

INTRODUCTION: Although several collateral studies have been made of the relationship between hyperuricemia and cerebral vascular accidents (CVA), no definite conclusion has been reached. OBJECTIVE: To analyze the possible relationship between hyperuricemia and CVA. PATIENTS AND METHODS: We studied the cases and controls paired for age, sex and hospital. They included patients with CVA (125) and controls (250 ophthalmological patients). Both groups contained 50.4% men and 49.6% women with an average age of 70 +/- 11 years. Data regarding vascular risk factors, a known personal history of hyperuricemia were recorded and serum uric acid levels determined in both groups. The relative risks were calculated using the Odds Ratio (OR) with a confidence interval of 95% (CI 95) and a conditional logistic regression study made. RESULTS: A statistically significant relationship was found between CVA and: arterial hypertension (OR: 6.32; CI 95: 3.43, 11.65); smoking (OR: 3.79; CI 95: 1.36, 10.58); alcoholism (OR: 2.54; CI 95: 1.11, 5.41); ischemic cardiopathy (OR: 2.37; CI 95: 1.2, 4.70) and previous CVA (OR: 5.93; CI 95: 3.17, 11.09). No relation was found with: a history of hyperuricemia (OR: 1.53; CI 95: 0.63, 3.73), serum uric acid levels (OR: 0.86, CI 95: 0.36, 2.00 when the uricemia was between 5 and 5.99 mg/dl and OR: 0.46, CI 95: 0.21, 1.02, when the uricemia was over 6 mg/dl). CONCLUSION: Our results suggest that hyperuricemia is not an independent risk factor for CVA.

Adult↗
PubMedDate not supplied

Idiopathic hypercalciuria: effects of calcium load test on magnesiuria.

Twenty-three children with idiopathic hypercalciuria and 7 control children were studied. Patients were classified into three groups according to the response to an oral calcium load. Five children displayed absorptive hypercalciuria (UCa/Cr 0.14 +/- 0.04 mg/mg with poor calcium diet and 0.33 +/- 0.16 after loading, p less than 0.01); 10 were classified renal hypercalciuria (UCa/Cr during the fasting state of 0.28 +/- 0.09 and 0.31 +/- 0.11 after loading) and 8 were classified as alimentary hypercalciuria (UCa/Cr 0.14 +/- 0.07 during the fasting state and 0.15 +/- 0.04 after loading). The urinary cAMP showed no significant differences in any of the three groups compared to the control. Magnesiuria did not show significant differences between the two forms of hypercalciuria and the control; a significant increase was observed after the loading and a positive correlation between magnesiuria and calciuria in the absorptive form. Our study supports the validity of the test for the classification of the different forms of hypercalciuria in children. The urinary cAMP is not a valid approach for classification. The difference observed in the magnesiuria suggests a different pathogenic mechanism between the two types of idiopathic hypercalciuria.

Administration, Oral↗