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Titolo:
BIRTH-WEIGHT IN OPPOSITE SEX TWINS AS COMPARED TO SAME-SEX DIZYGOTIC TWINS
Autore:
ORLEBEKE JF; VANBAAL GCM; BOOMSMA DI; NEELEMAN D;
Indirizzi:
FREE UNIV AMSTERDAM,DEPT PHYSIOL PSYCHOL,DE BOELELAAN 1111 1081 HV AMSTERDAM NETHERLANDS
Titolo Testata:
European journal of obstetrics, gynecology, and reproductive biology
fascicolo: 2, volume: 50, anno: 1993,
pagine: 95 - 98
SICI:
0301-2115(1993)50:2<95:BIOSTA>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
PAIRS;
Keywords:
TWINS; BIRTH WEIGHT; SEX; BIRTH ORDER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
J.F. Orlebeke et al., "BIRTH-WEIGHT IN OPPOSITE SEX TWINS AS COMPARED TO SAME-SEX DIZYGOTIC TWINS", European journal of obstetrics, gynecology, and reproductive biology, 50(2), 1993, pp. 95-98

Abstract

The question addressed in the present report is whether the large birth weight differences in dizygotic twin pairs of opposite sex (DZos), especially in 'male first' couples - observed by Blickstein and Weissman (Blickstein 1, Weissman A. Birth weight discordancy in male-first and female-first pairs of unlike-sexed twins. Am J Obstet Gynecol 1990;162:661-663) and replicated in the present study - can be explained bytwo general influences on birth weight, viz. sex and birth order, or whether some specific effect on fetal growth has to be assumed that ispresent only in twin pairs of differing sex. The associated enhanced health risk would hit the female twin (from a male first-female secondcouple) in the first place. If the hypothesis is correct, then one may expect that birth weight of twins is somehow dependent on the sex ofthe co-twin. This was studied in 3069 twin pairs born in The Netherlands since the end of 1986. Results show that among DZ twins, birth weight is not affected by the sex of the co-twin. Therefore, birth weightdifferences in DZos pairs have to be ascribed to the general effects of sex and birth order. There is no effect that is specific to DZos pairs only.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/01/20 alle ore 06:52:22