Clinical endocrinology · 2025
Klinefelter Syndrome: A Review.
СтатьяОбзорНазвание и аннотация: Перевод в очереди
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Blackburn James, Ramakrishnan Anand, Graham Catherine, Bambang Katerina, Sriranglingam Umasuthan, Senniappan Senthil
Аннотация
BACKGROUND: Klinefelter syndrome (KS) is an uncommonly recognised condition typified by gynaecomastia, small testes and aspermatogenesis. It is caused by a supernumerary X chromosome, resulting in a 47 XXY karyotype. Since its first description, the phenotype of KS has evolved and there is a much greater appreciation of the subtle features of the condition.
METHOD: In this review, we explore the phenotype of the KS with particular consideration to patients with pre-natal and early infancy diagnosis, given that this is becoming increasingly common. The current understanding of the genetic mechanisms of KS, caused by supernumerary X chromosome are explored and the genotype-phenotype correlation are discussed.
RESULTS: The implications of the condition both in childhood and later development are explored in detail, with particular focus on social and educational implications. Potential treatments, with emphasis on preservation of fertility are discussed. We highlight the optimal therapeutic conditions in which fertility preservation is most likely to be achieved, compared to those which can be more challenging. Finally, we discuss the other health challenges which can be associated with KS. These include poor bone health, diabetes, cardiovascular complications, and malignancy. The challenges in managing these co-morbid conditions and most up-to-date management recommendations are also explored.
METHOD: In this review, we explore the phenotype of the KS with particular consideration to patients with pre-natal and early infancy diagnosis, given that this is becoming increasingly common. The current understanding of the genetic mechanisms of KS, caused by supernumerary X chromosome are explored and the genotype-phenotype correlation are discussed.
RESULTS: The implications of the condition both in childhood and later development are explored in detail, with particular focus on social and educational implications. Potential treatments, with emphasis on preservation of fertility are discussed. We highlight the optimal therapeutic conditions in which fertility preservation is most likely to be achieved, compared to those which can be more challenging. Finally, we discuss the other health challenges which can be associated with KS. These include poor bone health, diabetes, cardiovascular complications, and malignancy. The challenges in managing these co-morbid conditions and most up-to-date management recommendations are also explored.