Monozygotic twinning
نویسندگان
چکیده
منابع مشابه
Monozygotic Twinning in Mice.
Because of the predominance of multiple ovulation in mice, it has been generally accepted that evidence for monozygotic twinning would be difficult to obtain. The two attempts that have been made have failed to find any evidence for twins surviving birth at a measurable rate. In Fisher and Mather's (I936) sevenfold backcross experiment there is no evidence of twinning at all. In each of Bateman...
متن کاملMonozygotic twinning, cerebral palsy and congenital anomalies.
BACKGROUND The majority of cases of cerebral palsy (CP) have their pathogenesis during fetal development and are a form of congenital anomaly, the aetiology of which is uncertain. Anomalous development of other organs evident at birth is also a congenital anomaly. A small proportion of these are known to be caused by chromosomal or gene abnormalities, environmental teratogens and dietary defici...
متن کاملMonozygotic twinning: is it related to apoptosis in the embryo?
The advent of prolonged in-vitro preimplantation embryo culture using sequential culture media (Gardner et al., 1998) has permitted many IVF laboratories to successfully adopt blastocyst transfer. Unfortunately, an unexpected side effect of this success has seen a small but significant appearance of monozygotic twinning. This has now been described by several authors (Peramo et al. Curiously en...
متن کاملThe incidence of monozygotic twinning following PGD is not increased.
BACKGROUND Monozygotic (MZ) twin pregnancies are associated with increased perinatal mortality and morbidity, and risk of congenital anomalies. The causes of MZ twinning in humans are unclear but the incidence may increase after PGD, for example, as a result of holes created in the zona pellucida. We compared the incidence of MZ twin pregnancies in ICSI cycles with PGD, versus ICSI cycles witho...
متن کاملAn unusual case of monozygotic epigastric heteropagus twinning.
Epigastric heteropagus refers to unequal and asymmetric conjoined twins in which the dependent component (parasite) is smaller and usually attached to the epigastrium of the dominant component (autosite). Epigastric heteropagus is a very rare type of conjoined twins. It is generally assumed that conjoined twins represent a form of monozygotic twinning, but there has been no confirmation of this...
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ژورنال
عنوان ژورنال: Clinical Case Reports and Reviews
سال: 2018
ISSN: 2059-0393
DOI: 10.15761/ccrr.1000387