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Biomedical subjects

L Gedda

Publications and source records attributed to L Gedda.

At least 55 records · Page 3Linked to original sources
PubMed1981

Low birth weight in twins versus singletons: separate entities and different implications for child growth and survival.

The condition of low birth weight is compared in twins and in singletons in terms of birth weight distributions and with respect to factors such as the incidence of stillbirths, length of gestation, maternal age, parity, and legitimacy. In the light of demographic, biological, and developmental considerations, it is concluded that low birth weight in twins is a different condition from low birth weight in singletons and should be dealt with independently, especially in view of the different implications for child growth and survival.

Birth Order↗
PubMed1981

The human twin.

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Cognition↗
PubMed1980

[Interaction between the ABO and Rh-Hr blood group systems in pairs of monozygotic (MZ) and dizygotic (DZ) twins].

Previous studies have revealed significant deviations of twin pairs' blood group distributions. A comparison between monozygotic (MZ) and dizygotic (DZ) pairs in a sample of 688 twin pairs as to interaction between ABO and Rh indicates that the main contribution to total deviation comes from the MZ pairs, thus confirming a different behaviour of the two twin types in this respect.

ABO Blood-Group System↗
PubMed1980

The human twin.

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Biometry↗
PubMed1979

Sleep and dream characteristics in twins.

A study of sleep and dream characteristics has been carried out by questionnaire on a sample of 77 MZ and 76 DZ same-sex twin pairs of two age groups, 6-8 and 16-18 years. Genetic effects could not be detected in the younger age group and appeared to be rather limited in the older one, possibly as a result of the limited variability of the considered variables and of the levelling influence of the common environment.

Adolescent↗
PubMed1979

Twin azygotic test for the study of hereditary qualitative traits in twin populations.

Following previous formulations of a model of qualitative analysis of twin population data independent of zygosity, a new Bayesian approach has been developed. The present model can be applied to any qualitative genetic trait in twin population data, provided no specific source of variation be introduced by the twin condition, and allows not only estimation of the frequencies of mono- and dizygosity as well as the gene frequencies, but also verification of the trait's mode of inheritance.

Bayes Theorem↗
PubMed1978

The role of chronogenetics and of gemellology in the prevention of genetic morbidity.

The prevention of hereditary diseases after birth is essentially based on the detection of these diseases at their preclinical level. This may be made possible through a careful pedigree examination and possible identification of a "genealogical alarm", as well as a detailed clinical examination of the subject and possible identification of preclinical signs of the pathogenesis, i.e., of a "clinical alarm". The respective roles of chronogenetics and of gemellology in this approach are reviewed.

Female↗