47,XXY (Klinefelter) Archives - Page 3 of 20 - The Association for X and Y Chromosome Variations

Rare Disorder of Sexual Differentiation with a Mosaic 46,XX/47,XXY in a Klinefelter Syndrome Individual

Article Title: Rare Disorder of Sexual Differentiation with a Mosaic 46,XX/47,XXY in a Klinefelter Syndrome Individual

Authors: Pattamshetty, Mantri, and Mohan

Date of Publication: April 12, 2020

“Early cytogenetic testing is essential to identify these individuals and testosterone replacement therapy and breast reduction for case management are helpful. Assisted reproductive technology (ART) may assist these individuals father children in some cases.”

Rick Frith2022-10-19T13:05:04-04:00Categories: 47,XXY (Klinefelter), Mosaicism|

Phenotypic differences in mosaic Klinefelter patients as compared with non-mosaic Klinefelter patients

Article Title: Phenotypic differences in mosaic Klinefelter patients as compared with non-mosaic Klinefelter patients

Authors: Samplaski, Lo, Grober, Millar, Dimitromanolakis, and Jarvi

Date of Publication: April 2014

“Klinefelter syndrome (KS) is the most common genetic cause of human male infertility. About 80% to 85% of cases are due to the congenital numerical chromosome aberration 47,XXY. Approximately 15% to 20% of KS men are mosaics, usually with two cell lines: 47,XXY/46,XY. The true prevalence of mosaic forms may be underestimated due to different chromosomal mosaicism levels in different tissues. In addition, popular belief holds that men with mosaic KS are more androgenized than their non-mosaic counterparts. These two factors, in addition to others, may result in underdetection of men with mosaic KS.”

Rick Frith2022-10-19T13:00:26-04:00Categories: 47,XXY (Klinefelter), Mosaicism|

Association between domains of quality of life and patients with Klinefelter syndrome: a systematic review

Article Title: Association between domains of quality of life and patients with Klinefelter syndrome: a systematic review

Authors: Mehmet, Gillard, Jayasena, and Llahana

Date of Publication: May 31, 2022

“This is the first evidence synthesis of QoL in men with KS. Current evidence suggests that combined physical and psychological impairments affect men with KS who also experience impairments in relationships and independence in society. Further research is needed to identify factors that influence the QoL in men with KS.”

Rick Frith2022-10-12T12:34:50-04:00Categories: 47,XXY (Klinefelter)|Tags: Quality of life|

Early symptoms of autism spectrum disorder in children with sex chromosome trisomies

Article Title: Early symptoms of autism spectrum disorder (ASD) in 1–8 year old children with sex chromosome trisomies (XXX, XXY, XYY), and the predictive value of joint attention

Authors: Bouw, Swaab, Tartaglia, Wilson, van der Velde, and van Rijn

Date of Publication: September 15, 2022

“These findings show a neurodevelopmental impact of the extra X or Y chromosome on social adaptive development associated with risk for ASD already from early childhood onward. These findings advocate for close monitoring and early (preventive) support, aimed to optimize social development of young children with SCT.”

Rick Frith2022-09-22T13:46:40-04:00Categories: 47,XXX (trisomy x), 47,XXY (Klinefelter), 47,XYY|Tags: Autism Spectrum Disorder|

Klinefelter syndrome: going beyond the diagnosis

Article Title: Klinefelter syndrome: going beyond the diagnosis

Authors: Butler, Srirangalingam, Faithfull, Sangster, Senniappan, and Mitchell

Date of Publication: August 10, 2022

“This review presents the contemporary approach to the provision of support for boys and adolescents with Klinefelter syndrome (KS) and their parents by practitioners who have a special interest in their clinical care and research.”

Rick Frith2022-08-25T12:01:43-04:00Categories: 47,XXY (Klinefelter)|

Emotional reactivity and expressivity in young children with sex chromosome trisomies

Article Title: Emotional reactivity and expressivity in young children with sex chromosome trisomies: evidence from psychophysiological and observational data

Authors: Kuiper, Swaab, Tartaglia, Cordeiro, and van Rijn

Date of Publication: July 25, 2022

“Although sex chromosomal trisomies (SCT) in children are highly prevalent and associated with an increased risk for neurodevelopmental difficulties including socio-emotional problems, little is known about underlying mechanisms that could drive this risk. Studying emotional reactivity and expressivity of young children with SCT in early childhood could identify deviations in early emotional development and potentially serve as risk markers to guide clinical care in developing interventions.”

Supporting students with sex chromosome aneuploidies in educational settings

Article Title: Supporting students with sex chromosome aneuploidies in educational settings: Results of a nationwide survey

Authors: Thompson, Davis, Janusz, Frith, Pylead, Howell, Boada, Wilson, and Tartaglia

Date of Publication: August 2022

“Many parents reported their children’s educators had little to no knowledge of SCA conditions, justifying a need to train teachers and policy makers in the unique educational needs of children and adolescents with SCAs. School psychologists should be aware of the frequent need for accommodations and individualized support plans in this population so they can support children and families by advocating for early and comprehensive evaluations and intervention plans.”

Rick Frith2022-06-28T12:56:32-04:00Categories: 47,XXX (trisomy x), 47,XXY (Klinefelter), 47,XYY, 48,XXXY, 48,XXYY, All Variations, Other Variations|Tags: Education|

Detection and characterization of male sex chromosome abnormalities in the UK Biobank study

Article Title: Detection and characterization of male sex chromosome abnormalities in the UK Biobank study

Authors: Zhao, Gardner, Tuke, Zhang, Pietzner, Koprulu, Jia, Ruth, Wood, Beaumont, Tyrrell, Jones, Lango Allen, Day, Langenberg, Frayling, Weedon, Perry, Ong, and Murray

Date of Publication: May 16, 2022

“Purpose: The study aimed to systematically ascertain male sex chromosome abnormalities, 47,XXY (Klinefelter syndrome [KS]) and 47,XYY, and characterize their risks of adverse health outcomes.”

“Conclusion: KS and 47,XYY were mostly unrecognized but conferred substantially higher risks for metabolic, vascular, and respiratory diseases, which were only partially explained by higher levels of body mass index, deprivation, and smoking.”

Rick Frith2022-06-13T15:18:29-04:00Categories: 47,XXY (Klinefelter), 47,XYY|

Early Social Behavior in Young Children with Sex Chromosome Trisomies (Trisomy X, XXY, XYY)

Article Title: Early Social Behavior in Young Children with Sex Chromosome Trisomies (XXX, XXY, XYY): Profiles of Observed Social Interactions and Social Impairments Associated with Autism Spectrum Disorder (ASD)

Authors: Bouw, Swaab, Tartaglia, Cordeiro, and van Rijn

Date of Publication: March 23, 2022

“Individuals with Sex Chromosome Trisomies (SCT; XXX, XXY, XYY) have an increased vulnerability for developing challenges in social adaptive functioning. The present study investigates social interaction behavior in the context of varying social load, and Autism Spectrum Disorder (ASD) symptomatology in young children aged 1–7.5 years old, with SCT (N = 105) and control children (N = 101). Children with SCT show less interaction behaviors and more social withdrawal, as compared to their control peers, which were most evident in the high social load condition. Second, social impairments related to ASD are more prevalent, as compared to controls (27.1% at clinical level). These findings stress the importance of early monitoring and (preventive) support of early social development in young children with SCT.”

Rick Frith2022-05-16T14:10:26-04:00Categories: 47,XXX (trisomy x), 47,XXY (Klinefelter), 47,XYY|Tags: Autism Spectrum Disorder, Social Behavior|

‘I Wish the School Had a Better Understanding of the Diagnosis’: parent perspectives on educational needs of students with SCAs

Article Title: ‘I Wish the School Had a Better Understanding of the Diagnosis’: parent perspectives on educational needs of students with sex chromosome aneuploidies

Authors: Thompson, Stinnett, Tartaglia, Davis, and Janusz

Date of Publication: March 13, 2022

“Students with SCAs, have a unique educational profile that may be challenging to support within the schools. Challenges with reading and writing, EF, fatigue/endurance, social skills and emotion management may act as barriers to learning, and are frequently triggered in busy classroom environments. Skills hovering in the borderline range are common to the SCA phenotype and are not often well served by special education systems with limited resources and strict cut-offs for qualification. As a result, families may feel they need to advocate strongly for their child to receive adequate support services. To improve the educational experience of children with SCAs, we recommend increased collaboration between the school and the child’s medical team, strong parent partnerships and acknowledgement of the significant role the genetic condition plays in the educational experiences of students with SCAs.”