CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

Comparison in prevalence, predictors, and clinical outcome of VSR versus FWR after acute myocardial infarction: The prospective, multicenter registry MOODY trial-heart rupture analysis Natural History of Spontaneous Coronary Artery Dissection With Spontaneous Angiographic Healing Cardiac Troponin Composition Characterization after Non ST-Elevation Myocardial Infarction: Relation with Culprit Artery, Ischemic Time Window, and Severity of Injury Uptake of Drug-Eluting Bioresorbable Vascular Scaffolds in Clinical Practice : An NCDR Registry to Practice Project Myocardial Inflammation Predicts Remodeling and Neuroinflammation After Myocardial Infarction Contemporary Diagnosis and Management of Patients With Myocardial Infarction in the Absence of Obstructive Coronary Artery Disease: A Scientific Statement From the American Heart Association Patient Characteristics Associated With Antianginal Medication Escalation and De-Escalation Following Chronic Total Occlusion Percutaneous Coronary Intervention: Insights From the OPEN CTO Registry High-sensitivity troponin in the evaluation of patients with suspected acute coronary syndrome: a stepped-wedge, cluster-randomised controlled trial Impact of Oxidative Stress on the Heart and Vasculature: Part 2 of a 3-Part Series 2014 AHA/ACC Guideline for the Management of Patients with Non-ST-Elevation Acute Coronary Syndromes: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines

Clinical Trial2018 May 30;19(1):89.

JOURNAL:BMC Med Genet. Article Link

Clinical and genetic characteristics of pulmonary arterial hypertension in Lebanon

Abou Hassan OK, Haidar W, BouAkl I et al. Keywords: BMPR2; Mutation; Pulmonary hypertension

ABSTRACT


BACKGROUNDPulmonary arterial hypertension (PAH) is a rare disease with an incidence rate of 2-6 cases per million per year. Our knowledge of the disease in the Middle East and North Africa (MENA) region is limited by the small number of clinical studies and the complete absence of genetic studies.


METHODS - Our aim was to shed light on the clinical and genetic characteristics of PAH in Lebanon and the region by using exome sequencing on PAH patients referred to the American University of Beirut Medical Center (AUBMC). Twenty-one idiopathic, hereditary and Congenital Heart Disease (CHD) PAH patients were prospectively recruited, their clinical data summarized, and sequencing performed.

RESULTS - The mean age at diagnosis was 33 years with a female preponderance of 70%. The mean pulmonary artery pressure at the time of diagnosis was 55. Genetic testing showed that 5 out of 19 idiopathic and Congenital Heart Disease PAH patients had Bone Morphogenetic Protein Receptor 2 (BMPR2) mutations at 25% prevalence, with 2 of these patients exhibiting a novel mutation. It also showed the presence of 1 BMPR2 mutation with 100% penetrance in a heritable PAH family. In the remaining cases, the lack of a complete genotype/phenotype correlation entailed a multigenic inheritance; suspected interactions involved previously associated genes T-box transcription factor 4 (TBX4), Bone Morphogenic Protein 10 (BMP10) and Growth Differentiation Factor 2 (GDF2).

CONCLUSIONS - This is the first study that looks into the genetic causes of PAH, including known and new BMPR2 mutations, in the MENA region. It is also the first study to characterize the clinical features of the disease in Lebanon.