Pinilla-Monsalve Gabriel D, Lores Juliana, Pachajoa Harry, López-Ponce de León Juan D, López Alejandro, Rodríguez-Rojas Lisa X, Nastasi-Catanese José A
Faculty of Health Sciences, Universidad Icesi, Cali 760032, Colombia.
Department of Genetics, Fundación Valle del Lili, Cali 760032, Colombia.
Appl Clin Genet. 2020 Mar 26;13:63-69. doi: 10.2147/TACG.S243148. eCollection 2020.
Hypertriglyceridemia is a common disease with only 2% of cases exhibiting monogenic mutations. Familial chylomicronemia syndrome (FCS) is a rare genetic condition associated with recurrent and severe episodes of pancreatitis and is mainly caused by mutations in the LPL gene, with few cases related to abnormal function of apolipoprotein C-II. This is a 50-year-old female with a past medical history of arterial hypertension, miscarriage and recurrent pancreatitis. In the last four years, her triglycerides and lipase concentration reached >3000 mg/dL and >700 U/L, respectively. The patient was not responsive to statins, fibrates, or tetrahydrolipstatin. A novel homozygous frameshift mutation on exon 3 of the gene was detected, c.133_134delTC. Subsequent Sanger sequencing confirmed that three first-degree relatives were carriers of the same mutation. To the best of our knowledge, we are reporting the first Colombian patient with FCS due to an mutation. We propose that this mutation caused recurrent hypertriglyceridemic pancreatitis.
高甘油三酯血症是一种常见疾病,仅有2%的病例表现为单基因变异。家族性乳糜微粒血症综合征(FCS)是一种罕见的遗传疾病,与复发性严重胰腺炎发作相关,主要由脂蛋白脂肪酶(LPL)基因突变引起,少数病例与载脂蛋白C-II功能异常有关。这是一名50岁女性,既往有动脉高血压、流产和复发性胰腺炎病史。在过去四年中,她的甘油三酯和脂肪酶浓度分别达到>3000mg/dL和>700U/L。该患者对他汀类药物、贝特类药物或四氢利普他汀均无反应。在该基因的第3外显子上检测到一个新的纯合移码突变,即c.133_134delTC。随后的桑格测序证实,三名一级亲属是相同突变的携带者。据我们所知,我们报告了首例因该基因突变导致FCS的哥伦比亚患者。我们认为该突变导致了复发性高甘油三酯血症性胰腺炎。