Document Detail

Physical growth of Japanese twins.
MedLine Citation:
PMID:  7871945     Owner:  NLM     Status:  MEDLINE    
The present study aimed at clarifying the characteristics of twins' physical growth. First, 557 pairs of normal Japanese twins were analyzed according to the following three life stages: (1) intrauterine growth, (2) body weight and height from birth to 6 years, and (3) body weight and height at school age (from 6 to 11 years). The following results were obtained. 1. Intrauterine growth of twins was very different from that of singletons, especially as regards weight, so twins should be estimated by twin standards. 2. Size deficit at birth was appropriately recovered over the first 6 years. 3. No size deficit was observed by school age. Second, the similarity of bodyweight and height according to zygosity was analyzed using 605 pairs of normal Japanese twins, 427 monozygotic (MZ), 113 same-sexed dizygotic (DZ) and 65 opposite-sexed DZ pairs. The similarity between MZ and DZ pairs was almost the same at birth. However, MZ pairs became increasingly more similar with age, whereas DZ pairs became more dissimilar. This tendency was very clearly seen through early infancy, thus suggesting that genetic factors became more apparent during this life stage.
S Ooki; A Asaka
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Publication Detail:
Type:  Comparative Study; Journal Article; Twin Study    
Journal Detail:
Title:  Acta geneticae medicae et gemellologiae     Volume:  42     ISSN:  0001-5660     ISO Abbreviation:  Acta Genet Med Gemellol (Roma)     Publication Date:  1993  
Date Detail:
Created Date:  1995-03-30     Completed Date:  1995-03-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370314     Medline TA:  Acta Genet Med Gemellol (Roma)     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  275-87     Citation Subset:  IM    
Department of Health Science, Yamanashi Medical University, Japan.
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MeSH Terms
Birth Weight
Body Constitution
Body Height
Body Weight
Child, Preschool
Embryonic and Fetal Development
Gestational Age
Head / growth & development
Infant, Newborn
Japan / epidemiology
Twins / statistics & numerical data*
Twins, Dizygotic

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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