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Biomedical subjects

M Carreras

Publications and source records attributed to M Carreras.

At least 55 records · Page 3Linked to original sources

A comparative study between the values of lecithin, sphingomyelin, lysolecithin, the L/S index, and the Clements test in amniotic fluid.

The relationship between the concentration of several phospholipids in amniotic fluid and the ocurrence of neonatal RDS was established some years ago. However the methods used for the determination of those substances are sophisticated and time consuming. They require specalized equipment and take at least 2 or 3 hours. CLEMENTS described a semiquantitative method which overcomes these disadvantages. The present study compared the concentration of lecithin, shingomyelin, lysolecithin and the L/S ratio against the results obtained when processing the same samples with the CLEMENTS Test. the results are expressed in mg/100 ml. for the different phospholipids and the test was evaluated as positive, intermediate or negative. a statistically significant correlation has been found between the values of lecithin, lysolecithin and L/S ratio and the results of the CLEMENTS Test, respectively. No correlation could be found with sphingomyelin (Figs. 1-4). It is concluded that the CLEMENTS Test can be a useful tool as a screening test available to any obstetrical centre.

Amniotic Fluid↗

HLA antigens and multiple sclerosis in the Province of Ferrara, northern-Italy: a community-based study.

The association between Multiple Sclerosis (MS) and DR2 HLA antigen is well known in Caucasoids. In the past few years a significant correlation has been found between DQwl and MS in North-East Scotland and in several other countries. In previous HLA studies in Italian MS patients, a lack of any association or an increased frequency of DR2 have been observed; however, the results of most Italian surveys derive from heterogeneous sample of affected individuals. This study was carried out in a homogeneous population of patients living in and originating from the province of Ferrara, Northern-Italy. Among the prevalence cases, 116, indigenous, unrelated patients, were typed for HLA-A-B, -DR and DQ antigens. The comparisons with 185 healthy individuals, originating from the same area, revealed an increased prevalence of DR2 antigen in Ferrara MS patients. This antigen does not appear to be related to the clinical variables of the disease.

Female↗