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Biomedical subjects

A Ottaviani

Publications and source records attributed to A Ottaviani.

35 records · Page 2Linked to original sources

[Dermatitis herpetiformis and latent celiac disease in two siblings].

The association between coeliac disease (CD) and dermatitis herpetiformis (DH) is well known. Moreover, this cutaneous disease may be the only sign of an otherwise asymptomatic CD. Subjects presenting with both CD and DH generally show an HLA pattern in which A1, B8, DR2, DR7, DQw2 are the most frequent antigens one can find. We report about 2 brothers presenting with DH, clinically asymptomatic, without antigliadin serum antibodies (AGA), but positive to the research of antiendomysial (EMA) ones. The biopsy performed by digestive endoscopy showed a complete atrophy of duodenal villi and the diagnosis of CD was confirmed according to the European Society for Pediatric Gastroenterology and Nutrition (ESPGAN) criteria. The diet without gluten caused the DH to recovery and the duodenal villi microscopic aspect to normalize as well. Both the brothers had the same HLA pattern: A1, B8, DR3-DR2, DQw2. Our clinical study suggests that it is very important, especially for the general practitioner, to recognize a DH and in every child presenting with a dermatitis like that it will be mandatory to perform a laboratory research of both AGA and EMA.

Adolescent↗

[Autoimmune endocrinopathies and Down's syndrome: a case report].

The authors refer about a girl, 16 years old, affected by Down's syndrome which developed diabetes mellitus (type I) and soon after hypothyroidism following autoimmune thyroiditis. They underline the usefulness of monitoring endocrine function in these patients.

Adolescent↗

[Liver damage and obesity in pediatric age].

In adult obese patients both an increase of aminotranspherase values and hepatic steatosis have been frequently showed. Conversely in childhood the existence of a liver's damage is often not investigated. To assess the prevalence of hepatic alterations in obese children, we studied 135 subjects, all affected by simple obesity, showing in a 20% of them the presence of ultrasonographic evidence of hepatic steatosis and/or hyperaminotransferasemia. Our study demonstrates the existence of silent hepatic alterations also in obese children and suggests to improve the treatment of obesity in childhood to prevent the progression of liver's damage.

Adolescent↗

p53 and cyclinX D1 protein expression in carcinomas of the parotid gland.

BACKGROUND: p53 and cyclin D1 genes play a central role in the regulation of the G1 phase of the cell-cycle, and are frequently involved in head and neck tumorigenesis. MATERIALS AND METHODS: By means of immunohistochemistry, we retrospectively investigated the overexpression of cyclin D1 and p53 genes in a series of 28 parotid gland carcinomas. The immunohistochemical analysis was performed using the ABC method and the antibodies DCS6 (for cyclin D1) and CM1 (for p53). RESULTS: p53 was overexpressed in 12 (42.9%) and cyclin D1 in 6 cases (21.4%). No significant association was found between p53 or cyclin D1 expression and the evaluated clinicopathological parameters of tumor extension, clinical stage, and lymph node or distant metastases. Nevertheless, it is worth noting that all of the patients with a high expression of p53 died of their disease. CONCLUSIONS: The present data confirm the role of p53 abnormalities in the pathogenesis of salivary gland carcinoma and report, for the first time, the involvement of cyclin D1 gene in these tumors.

Adult↗