Study on the Imprinting Status of Insulin-Like Growth Factor II (IGF-II) Gene in Villus during 6–10 Gestational Weeks

Table 2

IGF-II gene imprinting status in the abnormal and normal embryonic development groups.

Group	Genotype AA/BB		AB
	𝑛	%	𝑛	%
Normal group	26	68.4	12	31.6
Abnormal group	26	55.3	21	44.7
(chromosomal abnormality)	6	35.3	11	64.7

A, B, and AB indicates three kinds of genetic imprinting status, AA/BB indicate normal imprinting, AB indicates gene imprinting loss.