Biomedical subjects
Publications and source records attributed to G Conti.
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We refer about two children with Wolf-Hirschhorn's syndrome or syndrome with partial deletion of short arm of chromosome number 4. The diagnosis was possible with an accurate estimation of phenotype. Cytogenetics examination showed the chromosomal aberration typical for this syndrome.
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The cells from 3 human effusions of tumoral origin (adenocarcinoma) were observed by light and transmission electron microscopy. The presence and the type of cells undergoing apoptosis were studied. Among the different cell types present in these effusions, only some lymphocytes, macrophages and eosinophils (cells concerned in cell-mediated tumor immunity) are affected by the morphological changes of apoptosis. We did not find, as other authors did, tumor cells or other cell types (mesothelial cells, histiocytes, other granulocytes) showing apoptic alterations. The authors conclude that this peculiar morphological type of cell death affects the effector cells of the cell-mediated tumor immunity being at the end of their life-span.
The clinical features, serology behaviour, scintiscan characteristics and the degree of X-ray progression according to the disease duration were compared in two RA groups with a disease onset after 65 years of age (LORA) and before 65 (EORA) respectively. No differences emerged in either the clinical findings or in the scintiscan picture. A sub-group of LORA showed acute flares of the illness presenting with very high ESR values and high fever. The erosive index (EI) evaluated in three areas (carpal-bone and wrist, MCP and PIP joints) revealed an undistinguishable degree of X-ray damage either in seropositive or seronegative patients, whereas seropositive EORA fared clearly worse than seronegative ones. A prospective study in two small sub-groups of LORA and EORA revealed a progression of X-ray erosions despite second line drug treatment in both groups, especially in LORA.
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The progressive loss of renal function in children with chronic renal failure (CRF) has a negative influence on their nutritional status and statural growth. Supportive therapies with 1-25 dihydroxy-vitamin D3, recombinant erythropoietin and growth hormone have significantly improved the biochemical and clinical features but the success of these therapies is largely related to an appropriate diet, with adequate protein/caloric intakes. Children more than adults have minimal protein requirements to avoid malnutrition and growth impairment FAO/WHO and RDA recommendations save as guidelines for a correct diet in children with CRF. Following these allowances leads to a "normoproteic" diet, with a protein intake which is often half the unrestricted one in Western European countries, but which is still likely to be not enough to protect against renal deterioration. Indeed the European Study Group for Nutritional Treatment of CRF in children failed to show a significant effect of diet on the mean decline of glomerular filtration rate over two years.