Clinica chimica acta; international journal of clinical chemistry · 2021
Underlying diseases in sporadic presentation of high creatine kinase levels in girls.
СтатьяНазвание и аннотация: Перевод в очереди
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Lee Tomoko, Tokunaga Sachi, Taniguchi Naoko, Misaki Maiko, Shimomura Hideki, Nishino Ichizo, Itoh Kyoko, Takeshima Yasuhiro
Аннотация
BACKGROUND: Persistent creatine kinase (CK) elevation can occur due to various conditions. Identifying the causes of hyperCKemia is crucial for enabling appropriate follow-up and care. Girls with elevated CK levels may be carriers of Duchenne/Becker muscular dystrophy (DMD/BMD), making diagnosis more difficult than that in boys. This study aimed to elucidate the underlying causes of high CK levels in girls.
METHODS: Fourteen girls (seven symptomatic, seven asymptomatic) with persistently elevated CK levels but without a family history of muscle diseases were referred to our hospital between April 2014 and August 2018. Muscle biopsy and/or genetic analysis were conducted for diagnoses.
RESULTS: Among the symptomatic girls, six (85.7%) had muscular dystrophy (five DMD/BMD carriers, and one sarcoglycanopathy [limb-girdle muscular dystrophy: LGMDR4]), and one had dermatomyositis. Among the asymptomatic girls, four (57.1%) had muscular dystrophy (three DMD/BMD carriers, and one calpainopathy [LGMDR1]), and three were undiagnosed.
CONCLUSION: Our results indicate that muscular dystrophy, including DMD/BMD carriers, must be considered in girls with highperCKemia regardless of symptoms presentation, and in symptomatic girls with dermatomyositis. Investigations in girls with hyperCKemia should be performed under proper ethical considerations. Further research is necessary to develop a diagnostic strategy for girls with hyperCKemia.
METHODS: Fourteen girls (seven symptomatic, seven asymptomatic) with persistently elevated CK levels but without a family history of muscle diseases were referred to our hospital between April 2014 and August 2018. Muscle biopsy and/or genetic analysis were conducted for diagnoses.
RESULTS: Among the symptomatic girls, six (85.7%) had muscular dystrophy (five DMD/BMD carriers, and one sarcoglycanopathy [limb-girdle muscular dystrophy: LGMDR4]), and one had dermatomyositis. Among the asymptomatic girls, four (57.1%) had muscular dystrophy (three DMD/BMD carriers, and one calpainopathy [LGMDR1]), and three were undiagnosed.
CONCLUSION: Our results indicate that muscular dystrophy, including DMD/BMD carriers, must be considered in girls with highperCKemia regardless of symptoms presentation, and in symptomatic girls with dermatomyositis. Investigations in girls with hyperCKemia should be performed under proper ethical considerations. Further research is necessary to develop a diagnostic strategy for girls with hyperCKemia.