Objectives To study the phenotype of a China LQT family and investigate the relationship of phenotype and gene. Methods The clinical materials were analyzed and gene mutations were screened by sequencing. Results A di...Objectives To study the phenotype of a China LQT family and investigate the relationship of phenotype and gene. Methods The clinical materials were analyzed and gene mutations were screened by sequencing. Results A distinctive biphasic T wave pattern was shown in the left precordial leads of all patients. The LQT2 related HERG gene Ala561Val mutation was found. Conclusions A prolonged QT interval accompanied biphasic T wave indicates HERG mutation.展开更多
The mutations of CARD15 gene and clinical features of Chinese patients with Blau syndrome were analyzed. We identified10 missense mutations, out of which five were new: R334 L, E383 D, R471 C, C495 R and D512 F. The r...The mutations of CARD15 gene and clinical features of Chinese patients with Blau syndrome were analyzed. We identified10 missense mutations, out of which five were new: R334 L, E383 D, R471 C, C495 R and D512 F. The rest of them, R334 W,R334Q, G481 D, M513 T and R587 C, have been reported previously. Among all the mutations, R334 W, R334 Q and C495 R had the highest frequency. Blau syndrome was found at early age after birth. It began with lepidic rash and symmetric polyarthritis and was phenotypically characterized by typical rash, arthritis, iridocyclitis and arteritis. Cardiac involvement was also found in Blau syndrome. In addition to nerve deafness, renal involvement, osteochondroma and central nervous system involvement were also found in our patients. Therefore, Chinese children with Blau syndrome have unique gene mutations and complicated clinical phenotypes. Pathologic examination and CARD15 mutation testing should be considered for diagnosis as early as possible for suspected patients.展开更多
文摘Objectives To study the phenotype of a China LQT family and investigate the relationship of phenotype and gene. Methods The clinical materials were analyzed and gene mutations were screened by sequencing. Results A distinctive biphasic T wave pattern was shown in the left precordial leads of all patients. The LQT2 related HERG gene Ala561Val mutation was found. Conclusions A prolonged QT interval accompanied biphasic T wave indicates HERG mutation.
基金supported by Special Fund for Clinical Medicine of Chinese Medical Association (12040690369)
文摘The mutations of CARD15 gene and clinical features of Chinese patients with Blau syndrome were analyzed. We identified10 missense mutations, out of which five were new: R334 L, E383 D, R471 C, C495 R and D512 F. The rest of them, R334 W,R334Q, G481 D, M513 T and R587 C, have been reported previously. Among all the mutations, R334 W, R334 Q and C495 R had the highest frequency. Blau syndrome was found at early age after birth. It began with lepidic rash and symmetric polyarthritis and was phenotypically characterized by typical rash, arthritis, iridocyclitis and arteritis. Cardiac involvement was also found in Blau syndrome. In addition to nerve deafness, renal involvement, osteochondroma and central nervous system involvement were also found in our patients. Therefore, Chinese children with Blau syndrome have unique gene mutations and complicated clinical phenotypes. Pathologic examination and CARD15 mutation testing should be considered for diagnosis as early as possible for suspected patients.
