XYY syndrome is characterized by a variable neurodevelopmental phenotype, with features including developmental delays, cognitive impairments, and an increased risk for mental health conditions. There are two recent developments that have primarily motivated this review. The first is the increased use of ...
The XYY syndrome: A follow-up study on 38 boys In the last decade there has been a significant increase in the proportion of XYY males detected prenatally, mostly as a fortuitous finding. It is of utmos... M Geerts,J Steyaert,JP Fryns - 《Genetic Counseling》...
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Genetic and endocrinological studies in a patient with the XYY SyndromeCytogenetic and endocrinological studies were made in a patient suspected of hypogonadism. The chromosomal analysis was conducted on a leucocyte culture according to M oorhead et al. The 47, XYY karyotype was found. The auto...
Certain persons have been discovered who possess more or less than the normal complement of two sex chromosomes. The probable incidence of males possessing an XYY complement (XY being normal) of sex chomosomes has been estimated at 1: 1000 byBurke, Kenneth JDenv.l.j...
In the last decade there has been a significant increase in the proportion of XYY males detected prenatally, mostly as a fortuitous finding. It is of utmost importance to obtain a clear idea of the developmental profile of boys with karyotype 47,XYY and of possible problem areas during further...
An investigation of the childhood of 20 adult males and 2 boys with the XYY syndrome, ranging in age from 6 to 58 years at the time of diagnosis, is presented and discussed. A comparison with controls, 42 male criminals with more or less similar behavioral characteristics, indicated that tru...
In addition, this patient’s Y chromosome material gain may be a contributing factor to clinical features overlapping with 47, XYY syndrome including developmental delays, learning difficulties, and attention deficits. Due to the patient’s prematurity and associated complications, it is difficult to ...
inversions and other abnormalities. Aneuploidies—Klinefelter's syndrome (47,XXY); 47,XYY males; Turner's syndrome (46,X); and Down's syndrome (Trisomy 21). Trisomies in the fetus may explain a number of pregnancies that do not progress. Sperm from infertile males is more likely to have ...
doxal phosphate to the assay medium in vitro resulted in an apparent increase in activity of cystathionine synthase, but this was found to be due to the formation No XYY individual was identified, but two boys with an XXY complement characteristic of Kline- felter's syndrome were discovered. ...