Biomedical subjects
Publications and source records attributed to G Nigro.
The problem of some aspects of infantile atherosclerosis is examined synthetically (period of onset, classification of hyperdyslipidemia, lipidic fractions, threshold values, variations with age) and prevention examined at length. In particular, stress is laid on a "mixed" mass screening method to prevent many subjects being untouched by targeted screening investigation.
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To assess the incidence, nature and evolution of cardiac disease in Duchenne muscular dystrophy, 328 patients were studied between 1976 and 1987 for periods varying from 3 to 11 years. Patients underwent regular clinical examination, electrocardiography, echocardiography and radiological assessment. Pre-clinical cardiac involvement was found in 25% of patients under 6 years old increasing to 59% between the ages of 6 and 10 years and then declining in incidence with age. Clinically apparent cardiomyopathy is first evident after 10 years of age and increases in incidence with age, being present in all patients over 18 years of age. Its clinical impact is discussed.
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The dynamic morphological aspects of the uterine mucosa during the various phases of the endometrial cycle were examined, by using ultrasonographic methods, in 148 patients having regular menstrual cycles and a biphasic basal body temperature. During the proliferative phase, ultrasonographic examinations permitted a visualization of the mucosa in 33%-45% of the cases, respectively in the initial and in the later part of the phase. During the secretory phase, the endometrium was identifiable in 81.4% (initial part) to 90% of the cases (later part of phase). During the menstrual phase, on the other hand, the median echo of the endometrial cavity could never be clearly identified.
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A fatal case of Coxsackievirus B-6 (CBV-6) infection in a 4 1/2-year-old girl is reported. The disease was initially characterized by a severe meningoencephalitis and, successively, by the appearance of hyperglycaemia and glycosuria, concomitantly with complement-fixing-islet cell antibodies (CF-ICA) and ICA, diarrhoea, electrolyte disorders, arrhythmia and decrease of the IgG levels, suggesting a multi-system involvement. CBV-6 was identified by isolation from stool and cerebrospinal fluid and by detection of specific IgM antibodies.
Paired sera from 46 vaccinees and 22 patients with clinically typical or atypical parotitis were tested for class-specific mumps antibodies by two different indirect enzyme-linked immunosorbent assay (ELISA) procedures. Both ELISAs appeared suitable, specific and more sensitive than neutralization (NT) and complement-fixation (CF). However, the macro-ELISA (M-ELISA) method, using beads as antigen-coated solid phase, showed a higher sensitivity than micro-ELISA (m-ELISA), performed on microplates. Diagnostic rises in mumps IgG antibodies and mumps IgA antibodies were detected more frequently by M-ELISA, mostly in post-vaccination sera. In addition, higher mean OD values of mumps IgG, IgA and IgM antibodies were generally found by M-ELISA. Nevertheless, m-ELISA appeared more convenient for evaluating class-specific mumps antibodies in large-scale studies, since the procedure is simpler, more rapid and less expensive than that of M-ELISA. Conversely, M-ELISA may be considered the test of choice for detecting low class-specific antibody levels. However, the determination of class-specific mumps antibodies appeared as an essential tool for evaluating vaccine-induced or naturally acquired mumps immunity.