β Scribed by J. Eisenberg; Rahel Hamburger-Bar; R. H. Belmaker
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The recent discovery that the extra chromosome in about 30% of cases of 47, trisomy 21 is of paternal origin has revived interest in the possibility of paternal age as a risk factor for a Down syndrome birth, independent of maternal age. Parental age distribution for 611 Down's syndrome 47, +21 case
Paternal age distribution for 1279 cases of Down's syndrome born in 1952--1968 was compared with the corresponding distribution for the general population, corrected for the maternal age as well as for the year of birth of the patients. Although there was no difference in the mean paternal age, the
The effect of gravidity on maternal serum a-fetoprotein (AFP), unconjugated oestriol (uE,), and human chorionic gonadotrophin (hCG) levels was investigated in 27 592 women being screened for Down's syndrome. There was no difference in the median AFP level in primigravid and multigravid women, but th
In 23 subjects of different ages with Down's syndrome a number of parameters of non-specific defense of humoral and cellular immunity were investigated. While in all age groups complement factors C3, C4 and C5 as well as phagocytosis and NBT indices were in the normal range, a dysgammaglobulinaemia