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Biomedical subjects

A Ramalho

Publications and source records attributed to A Ramalho.

8 recordsLinked to original sources
PubMed1992

[Incidence of and mortality from malignant tumors inthe municipality of++Vila Nova de Gaia: 1981-1987].

Data from the population based Cancer Registry of Vila Nova de Gaia for the 1981-1987 period are presented. Cancer is becoming a disease increasingly frequent in Portugal, causing progressively higher mortality rates. Population and geographic characteristics of Vila Nova de Gaia country is presented. Information sources of this Registry are hospitals, pathology labs, Health Authority files and death certificates. Net (229.2, 216.6) and standardized for european population (369.9, 245.9) incidence rates are presented for respectively men and women. Comparisons with registries from other countries (e.s.) are made.

Adolescent↗
PubMedDate not supplied

Use of the frequencies of micronuclei as quantitative indicators of X-ray-induced chromosomal aberrations in human peripheral blood lymphocytes: comparison of two methods.

The yield of radiation-induced micronuclei in human lymphocytes was assessed by two methods, i.e., by incorporating bromodeoxyuridine or by inhibiting cytokinesis by cytochalasin for identification of cells which have undergone one cell division. The cytochalasin block method was found to be more efficient with a capacity to detect between 60 and 90% of the induced fragments. Dose-response characteristics and the results of fractionation experiments indicate that the yield of micronuclei reflects both classes of acentric fragments, i.e., those associated and independent of exchange type of aberrations.

Bromodeoxyuridine↗