Electroencephalographic Examination in the XYY Syndrome and in Klinefelter's Syndrome

1974 ◽  
Vol 125 (586) ◽  
pp. 236-237 ◽  
Author(s):  
Johannes Nielsen ◽  
Takayuki Tsuboi
Keyword(s):  
General Population ◽  
Chromosome Aberrations ◽  
Sex Chromosome ◽  
Klinefelter’S Syndrome ◽  
Klinefelter's Syndrome ◽  
Xyy Syndrome

Previous electroencephalographic studies of persons with sex chromosome aberrations have indicated that there might be more electroencephalographic aberrations in males with double Y and double X than in the general population. A survey of these studies has recently been made by Fenton et al. (1971).

Genetic Counseling in a Patient with XXY/XXXY/XY Mosaic Klinefelter’s Syndrome: Estimate of Sex Chromosome Aberrations in Sperm Before Intracytoplasmic Sperm Injection

1998 ◽  
Vol 69 (3) ◽  
pp. 482-485 ◽  
Author(s):  
Roland Kruse M.D. ◽  
Martina Guttenbach Ph.D. ◽  
Bettina Schartmann M.Sc. ◽  
Regine Schubert Ph.D. ◽  
Hans van der Ven M.D. ◽  
...  
Keyword(s):  
Genetic Counseling ◽  
Intracytoplasmic Sperm Injection ◽  
Chromosome Aberrations ◽  
Sex Chromosome ◽  
Klinefelter’S Syndrome ◽  
Klinefelter's Syndrome

Criminality Among Patients with Klinefelter's Syndrome and the Xyy Syndrome

1970 ◽  
Vol 117 (539) ◽  
pp. 365-369 ◽  
Author(s):  
Johannes Nielsen
Keyword(s):  
High Frequency ◽  
Preliminary Report ◽  
Klinefelter’S Syndrome ◽  
Klinefelter's Syndrome ◽  
Xyy Syndrome

The present study is a preliminary report of the frequency and type of criminality in men with Klinefelter's syndrome and the XYY syndrome; it has been made on the background of previous findings of a comparatively high frequency of criminality among such patients.

Twins in Sibships with Klinefelter's Syndrome and the XYY Syndrome

1970 ◽  
Vol 19 (3) ◽  
pp. 399-404 ◽  
Author(s):  
J. Nielsen
Keyword(s):  
Multiple Births ◽  
Klinefelter’S Syndrome ◽  
Klinefelter's Syndrome ◽  
Xyy Syndrome

SummaryThe frequency of twins and triplets was significantly higher than expected among 56 patients with Klinefelter's syndrome (7.1%), compared with 1.58% in the population (P<0.001), and the frequency of multiple births in the 56 sibships (4.08%) was also significantly higher than expected (P<0.01).One of 15 patients with the XYY syndrome was a twin, and there were 2 twin births among the 53 births in the 15 sibships.

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