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Biomedical subjects

R Poletti

Publications and source records attributed to R Poletti.

At least 19 recordsLinked to original sources

ASP, DSP, NSP and PSP monitoring in 'mucilaginous aggregates' and in mussels in a coastal area of the Northern Adriatic Sea facing Emilia-Romagna in 1988, 1989 and 1991.

In this study, monitoring of marine biotoxins in "mucilaginous aggregates" and in mussels from coastal area of Emilia Romagna (Northern Adriatic Sea) in June-August 1988, 1989 and 1991, are reported. Both "mucilaginous aggregates" and mussels were analysed for NSP and PSP in 1988, and ASP, DSP, NSP, PSP in 1989, 1991. Concerning "mucilaginous aggregate" any presence of biotoxins was never detected. In the mussels it was possible to exclude the presence of PSP, ASP and NSP, but very high levels of DSP were shown in all the considered periods, in relation to the presence in the sea water of cells of the Dinophysis genus.

Adhesives

Mortality study of asbestos cement workers.

The present study describes cause-specific mortality of asbestos cement workers in the Emilia Romagna region of Italy. The cohort included workers in ten factories, most of which started operating between 1955 and 1965. Asbestos, mainly chrysotile, constituted 10%-20% of the dry component of the mixture. Crocidolite range between 5% and 50% of total asbestos. Asbestos concentrations up to 44 ff/cc were reported prior to 1975, while in recent years they have usually been below 0-1 ff/cc. The cohort included 3341 workers who had at some time been employed in the ten factories under study. Their mortality experience was compared with that of the population resident in Emilia Romagna. Vital status was ascertained at 1989. Seventy-three subjects were lost to follow-up (2.2%). Mortality from all causes and from all types of cancer was increased in the cohort. Malignant neoplasms of the respiratory tract showed a significant increase (SMR: 134; 90% confidence interval: 101-175; 40 observed) due to lung cancer (SMR: 124; 90% confidence interval: 91-166; 33 observed) and neoplasms of the pleura, mediastinum, and other parts of the respiratory tract (SMR: 602; 90% confidence interval 237-1267; 5 observed). The discrepancy between observed and expected mortality mainly concerned subjects with at least 20 years of employment in the factories. Five more cases of histologically confirmed mesothelioma occurred after the end of follow-up.

Asbestos

[Hg, Pb and Cd in zooplankton from an area of the Adriatic opposite the Romagna coast line].

The concentrations of heavy metals Hg, Pb and Cd found in zooplankton samples collected in two stations off Cesenatico (Northern Adriatic Sea) from March 1978 to January 1979, have been reported. The Hg, Pb and Cd concentrations showed large variations which did not seem to be correlated with taxonomic composition. The detected levels of metals were higher at the offshore than the nearshore station, accordingly with the sediment pattern. The high concentration of Hg were apparently associated with sources of local industrial pollution.

Animals