Genetic studies on speech and language disorders
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서지정보
ㆍ발행기관 : 충북대학교 동물의학연구소
ㆍ수록지정보 : Journal of Biomedical Research / 16권 / 3호
ㆍ저자명 : Changsoo Kang
ㆍ저자명 : Changsoo Kang
영어 초록
Speech and language are uniquely human-specific traits that have contributed to humans becoming the predominant species on earth from an evolutionary perspective. Disruptions in human speech and language function may result in diverse disorders, including stuttering, aphasia, articulation disorder, spasmodic dysphonia, verbal dyspraxia, dyslexia, and specific language impairment (SLI). These disorders often cluster within a family, and this clustering strongly supports the hypothesis that genes are involved in human speech and language functions. For several decades, multiple genetic studies, including linkage analysis and genome-wide association studies, were performed in an effort to link a causative gene to each of these disorders, and several genetic studies revealed associations between mutations in specific genes and disorders such as stuttering, verbal dyspraxia, and SLI. One notable genetic discovery came from studies on stuttering in consanguineous Pakistani families; these studies suggested that mutations in lysosomal enzyme-targeting pathway genes (GNPTAB, GNPTG, and NAPGA) are associated with non-syndromic persistent stuttering. Another successful study identified FOXP2 in a Caucasian family affected by verbal dyspraxia. Furthermore, an abnormal ultrasonic vocalization pattern (USV) was observed in knock-in (KI) and humanized mouse models carrying mutations in the FOXP2 gene. Although studies have increased our understanding of the genetic causes of speech and language disorders, these genes can only explain a small fraction of all disorders in patients. In this paper, we summarize recent advances and future challenges in an effort to reveal the genetic causes of speech and language disorders in animal models.참고 자료
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