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青岛大学附属医院内分泌与代谢性疾病科,青岛 266000
刘梦婷,Email:17860693167@163.com,研究方向:内分泌与代谢病。
孙晓方,Email:sunxiaofang@qdu.edu.cn。
收稿:2025-10-13,
修回:2025-11-23,
录用:2025-12-11,
纸质出版:2026-10-28
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刘梦婷,赵宇航,刘方超,等.ANOS1基因新突变类型致卡尔曼综合征罕见病例的分子诊断与表型分析及文献综述[J].重庆医科大学学报,2026,51(10):1398-1403.
Liu Mengting,Zhao Yuhang,Liu Fangchao,et al.Molecular diagnosis and phenotypic analysis of Kallmann syndrome caused by a novel mutation in the ANOS1 gene:a case report and literature review[J].Journal of Chongqing Medical University,2026,51(10):1398-1403.
刘梦婷,赵宇航,刘方超,等.ANOS1基因新突变类型致卡尔曼综合征罕见病例的分子诊断与表型分析及文献综述[J].重庆医科大学学报,2026,51(10):1398-1403. DOI: 10.13406/j.cnki.cyxb.004013.
Liu Mengting,Zhao Yuhang,Liu Fangchao,et al.Molecular diagnosis and phenotypic analysis of Kallmann syndrome caused by a novel mutation in the ANOS1 gene:a case report and literature review[J].Journal of Chongqing Medical University,2026,51(10):1398-1403. DOI: 10.13406/j.cnki.cyxb.004013.
目的
2
分析
ANOS1
基因突变相关的卡尔曼综合征(Kallmann syndrome,KS)的基因型与临床表型,为KS的临床诊治提供分子诊断依据与个体化治疗策略。
方法
2
收集1例男性KS患者的临床资料,并采集外周血DNA,对其家系进行基因突变检测,进而对既往发表的
ANOS1
基因突变致KS的相关文献进行综述。
结果
2
先证者以发育迟缓起病,辅助检查提示睾酮(testosterone,T)、促黄体生成素(luteinizing hormone,LH)、卵泡刺激素(follicle-stimulating hormone,FSH)低,全外显子测序显示其携带新发现的ANOS1基因移码突变(p.Ser596Alafs*24),导致ANOS1蛋白质结构的明显改变;其母亲同样存在该突变,但无性腺功能低下的临床表现。通过文献复习,发现
ANOS1
基因突变在性腺功能方面可导致KS和特发性低促性腺激素性性腺功能减退症(idiopathic hypogonadotropic hypogonadism,IHH);此外,患者还表现出一系列其他非生殖特征,这可能与突变位点的不同有关。
结论
2
KS是一种罕见病,遗传学分析是诊断该病的核心,
ANOS1
基因突变可导致KS;在治疗方面,促性腺激素释放激素脉冲泵治疗有助于促进KS患者的第二性征发育、精子生成,改善患者的整体生活质量。
Objective
2
To investigate the genotype and clinical phenotype of Kallmann syndrome(KS) associated with ANOS1 gene mutations,and to provide molecular diagnosis and individualized treatment for the clinical diagnosis and treatment of KS.
Methods
2
Clinical data were collected from a male KS patient,and peripheral blood DNA was collected. Gene mutation detection was performed for his family. A literature review was performed for the articles on KS caused by ANOS1 gene mutations.
Results
2
The proband had developmental delay as the initial presentation. Auxiliary examinations showed low levels of testosterone,luteinizing hormone,and follicle-stimulating hormone. Whole-exome sequencing showed that the proband carried a novel frameshift mutation of p.Ser596Alafs*24 in the ANOS1 gene,which induced a significant alteration in the structure of ANOS1 protein,and the mother of the proband also carried this mutation,but without the clinical manifestation of hypogonadism. The literature review showed that as for gonadal function,ANOS1 gene mutations could cause KS and idiopathic hypogonadotropic hypogonadism,and in addition,there might be a series of other non-reproductive features,which may be associated with different mutation sites.
Conclusion
2
KS is a rare genetic disorder,and genetic analysis plays a central role in the diagnosis of this condition. ANOS1 gene mutations may cause KS. In terms of treatment,pulsatile gonadotropin-releasing hormone therapy can effectively promote the development of secondary sexual characteristics and spermatogenesis in patients with KS,thereby improving the overall quality of life of patients.
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