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A novel homozygous missense mutation in PNPLA2 in a patient manifesting primary triglyceride deposit cardiomyovasculopathy
被引:1
|作者:
Hara, Yasuhiro
[1
]
Ikeda, Yoshihiko
[1
,2
]
Kimura, Hayato
[3
]
Shimamoto, Shinsaku
[4
]
Ishikawa, Mao
[1
]
Kobayashi, Kunihisa
[5
]
Nagasaka, Hironori
[6
]
Shimoyama, Hisashi
[4
]
Hirano, Ken-ichi
[1
]
机构:
[1] Osaka Univ, Grad Sch Med, Dept Triglyceride Sci, Lab Novel Noninvas & Nutr Therapeut CNT, 6-2-4 Furuedai, Suita, Osaka 5650874, Japan
[2] Natl Cerebral & Cardiovasc Ctr, Dept Pathol, 6-1 Kishibeshinmachi, Suita, Osaka 5648565, Japan
[3] Itami City Hosp, Dept Pathol, 1-100 Koyaike, Itami, Hyogo 6648540, Japan
[4] Itami City Hosp, Dept Cardiol, 1-100 Koyaike, Itami, Hyogo 6648540, Japan
[5] Fukuoka Univ, Dept Endocrinol & Diabet Mellitus, Chikushi Hosp, 1-1-1 Zokumyoin, Chikushino, Fukuoka 8188502, Japan
[6] Iwate Prefectural Isawa Hosp, Dept Pediat, 61 Aza Ryugababa, Ohshu, Iwate 0230864, Japan
关键词:
Adipose triglyceride lipase;
Heart failure;
Mutation;
Triglyceride deposit cardiomyovasculopathy;
PNPLA2;
LIPID STORAGE DISEASE;
GENETIC DEFICIENCY;
LIPASE;
D O I:
10.1016/j.ymgmr.2023.100960
中图分类号:
Q3 [遗传学];
学科分类号:
071007 ;
090102 ;
摘要:
Primary triglyceride deposit cardiomyovasculopathy (P-TGCV), caused by a rare genetic mutation in PNPLA2 encoding adipose triglyceride lipase (ATGL), exhibits severe cardiomyocyte steatosis and heart failure. Here, we report the case of a 51-year-old man with P-TGCV homozygous for a novel PNPLA2 mutation (c.446C > G, P149R) in the catalytic domain of ATGL. Analyses of endomyocardial biopsy specimens and in vitro expression experiments showed mutant protein expression with conserved lipid binding, but reduced lipolytic activity, indicating mutation pathogenicity.
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页数:4
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