Results 301 to 310 of about 349,469 (338)

Monozygotic Twinning as a Congenital Defect and Congenital Defects in Monozygotic Twins

Fetal Diagnosis and Therapy, 1990
The process of monozygotic twinning in animals and humans is presented. In addition, congenital defects in monozygotic twins versus dizygotic twins and singletons is discussed. Overall, the rates of congenital anomalies are higher among whites as compared to blacks, males as compared to females, and multiples as compared to singletons.
Louis G. Keith, Barbara Luke
openaire   +3 more sources

Monozygotic twinning and structural defects

The Journal of Pediatrics, 1979
An excess of structural defects occurs in monozygotic twins compared in dizygotic twins or singletons. The excess is composed of three categories of defects. The first includes defects which are part of the MZ twinning, such as conjoined twins and some amorphous twins.
Schinzel, Albert A G L, Smith, D W, Miller, J R   +2 more
openaire   +3 more sources

Endometriosis in monozygotic twins

Acta Obstetricia et Gynecologica Scandinavica, 1994
Objective. To study the reproductive and medical history of monozygotic twin sisters and mothers of patients with endometriosis.Material and methods. Among 515 patients with endometriosis, eight had a monozygotic twin sister all of whom had had a gynecological laparoscopy or laparotomy. In addition, five of their mothers had had a laparotomy.
openaire   +2 more sources

Colonic atresia in monozygotic twins

American Journal of Medical Genetics, 2000
We describe monozygotic twins with colonic atresia and discuss genetic causes of colonic atresia.
Olajire Idowu, Sunghoon Kim, Steve Yedlin   +2 more
openaire   +3 more sources

Delayed Ovulation and Monozygotic Twinning

Acta geneticae medicae et gemellologiae, 1976
Aiming to show that delayed ovulation may induce MZ twinning, follicular maturation was induced in the rabbit by a small quantity of Pregnant Mare Serum Gonadotropin (16 UI four times): coitus, which induces ovulation in the rabbit, was delayed 60 hours after the last injection.
Emile Papiernik-Berkhauer, Ondine Bomsel-Helmreich   +1 more
openaire   +3 more sources

Rett syndrome in monozygotic twins

American Journal of Medical Genetics, 1988
AbstractThe evolution of the Rett syndrome in 29‐year‐old twin girls is presented. Evidence for monozygosity is given together with a brief account of the problems these girls posed to their family in early childhood.
M. W. Partington, John M. Optiz, James F. Reynolds   +2 more
openaire   +3 more sources

Waldenström's Macroglobulinemia in Monozygotic Twins

Acta Medica Scandinavica, 1986
ABSTRACTThis paper reports a unique familial occurrence of Waldenström's macroglobulinemia (WM) in monozygotic twins. The determination of twin monozygosity has been performed by electrophoretic and immunological typing of genetic systems (erythrocyte blood groups, leucocyte antigens and serum protein polymorphism).
D. Rochu, M. Marneux, Gorin Nc, A. Fine, J. Y. Muller, Patrick Lambin, Jean-Marius Fine   +6 more
openaire   +3 more sources

Differences between germline genomes of monozygotic twins

Nature Genetics, 2021
Hákon Jónsson, Erna Magnúsdóttir, H. Eggertsson, Olafur A. Stefansson, G. Arnadottir, Ogmundur Eiriksson, Florian Zink, Einar A. Helgason, I. Jónsdóttir, Arnaldur Gylfason, Adalbjorg Jonasdottir, Á. Jónasdóttir, Doruk Beyter, T. Steingrimsdottir, G. Norddahl, O. Magnusson, G. Másson, B. Halldórsson, U. Thorsteinsdóttir, A. Helgason, P. Sulem, D. Gudbjartsson, K. Stefánsson   +22 more
semanticscholar   +1 more source

STUDIES OF HUMAN TWINS I. METHODS OF DIAGNOSING MONOZYGOTIC AND DIZYGOTIC TWINS

, 1928
1. The original objective of these studies was the study of the roles of heredity and environment in determining mental capacities of various sorts.2. The first essential was to learn how to diagnose with certainty the two types of twins, monozygotic and
H. H. Newman
semanticscholar   +1 more source

Monozygotic twins with the Turner syndrome

American Journal of Obstetrics and Gynecology, 1972
Abstract A monozygotic identical twin pair with the 45,XO Turner syndrome is reported. The twins were phenotypically identical, a surprisingly unusual occurrence among monozygotic twins with the Turner syndrome. Monozygotic twinning is apparently the most common form of twinning among reported patients with the Turner syndrome.
R. Neil Schimke, William A. Horton, David J. Harris, Paul L. Riekhof   +3 more
openaire   +3 more sources