View clinical trials related to Klinefelter Syndrome.
Filter by:The purpose of this study is to investigate the following: 1. Whether Klinefelter Syndrome is associated with altered total and regional brain volumes and altered brain activity. 2. The influence of genetic factors and testosterone treatment on the neuropsychological phenotype, total and regional brain volumes and brain activity in men with Klinefelter syndrome.
This study aims to understand the impact of living with Klinefelter syndrome (KS) and the factors that contribute to adaptation in adolescents and adults. Individuals with KS may have variable symptoms, including hypogonadism, gynecomastia, learning disabilities, and delay and underdevelopment of secondary sexual characteristics. Perhaps the most challenging symptom of KS is infertility, which seems to be a universal symptom. It is not fully understood how males with KS conceptualize their condition, cope with their diagnosis, and adapt to living with this condition. In this study, Lazarus and Folkman s Transactional Model of Stress and Coping provides a framework for examining coping and adaptation in males with KS. A cross-sectional research design using a quantitative survey will be utilized to examine the relationships among appraisals (illness perceptions and perceived stigma), time elapsed since learning of diagnosis, coping, and adaptation. Adolescents and adults with KS will be recruited from national KS support networks via website postings, email listservs, and printed newsletter postings. Adolescents will also be recruited from a private practice. Participants will have the option to complete an online or paper version of the survey. The main outcome variable is adaptation to living with a KS diagnosis.
Klinefelter syndrome (KS) is the most common sex-chromosome disorder with a prevalence of one in 660 men and is a frequent cause of hypogonadism and infertility. It is caused by the presence of extra X-chromosomes, the most common karyotype being 47,XXY. The phenotype is variable, but the most constant finding is small hyalinized testes, hypergonadotrophic hypogonadism, infertility, eunuchoid body proportion, increased height and learning disabilities. Klinefelter syndrome has been associated with increased prevalence of diabetes, osteoporosis and cardiovascular diseases but the pathogenesis is unknown. Accordingly the aim of the study was to investigate measures of body composition, insulin sensitivity, bone mineral density, echocardiography, as well as biochemical markers of endocrine, metabolic and bone function in KS and an age-matched control group.
The purpose of this study is to evaluate the effects of low-dose androgen on the motor and cognitive development of boys with Klinefelter syndrome.