CD36 Deficiency has Little Influence on the Pathophysiology of Hypertrophic Cardiomyopathy
| Autor: | Satoshi Hirasaki, Noriyuki Kinoshita, Masao Nakagawa, Akiko Matsuo, Akihiro Azuma, Yoshihiko Adachi, Tohru Inaba, Tomoki Nakamura, Hiroki Sugihara |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Adult
Blood Platelets CD36 Antigens Male Cardiac Catheterization medicine.medical_specialty Adolescent CD36 Population Cardiomyopathy macromolecular substances Biology Gastroenterology Monocytes Electrocardiography chemistry.chemical_compound Internal medicine parasitic diseases medicine Humans cardiovascular diseases Family history education Molecular Biology Aged Aged 80 and over education.field_of_study Fatty acid metabolism Hypertrophic cardiomyopathy Cardiomyopathy Hypertrophic Middle Aged Flow Cytometry medicine.disease Pathophysiology Endocrinology chemistry Echocardiography cardiovascular system biology.protein Etiology Female Cardiology and Cardiovascular Medicine |
| Zdroj: | Journal of Molecular and Cellular Cardiology. 31:1253-1259 |
| ISSN: | 0022-2828 |
| DOI: | 10.1006/jmcc.1999.0957 |
| Popis: | CD36 is homologous with myocardial long-chain fatty acid (LCFA) binding protein and has been suggested to relate to myocardial fatty acid metabolism. Myocardial scintigraphy with iodine-123 15-(p-iodophenyl)-3-(R, S)-methylpentadecanoic acid (BMIPP) revealed an impairment in LCFA metabolism chiefly in the hypertrophic myocardium in hypertrophic cardiomyopathy (HCM). Recently, the incidence of CD36 deficiency has been reported to be high in HCM patients, and CD36 deficiency was proposed as an etiology of hereditary HCM. However, the pathophysiological effect of CD36 deficiency on HCM has not been fully investigated. We analysed the expression of CD36 antigens on both platelets and monocytes obtained from 82 patients with HCM using two-color flow cytometry. Among the study patients, seven patients (8.5%) demonstrated type II CD36 deficiency, whereas type I CD36 deficiency was not detected. Two of 23 patients (8.7%) with a family history of HCM and five of 59 patients (8.5%) without a family history of HCM showed type II CD36 deficiency respectively. Contrary to the previous report, three of 53 patients with asymmetric septal hypertrophy (ASH) (5.7%) and four of 29 patients without ASH (13.8%) showed CD36 deficiency. Moreover, clinical characteristics, scintigraphic findings, echocardiographic data, and hemodynamic findings disclosed no significant differences between the HCM patients showing normal CD36 expression and those with CD36 deficiency. The incidence of CD36 deficiency in HCM patients is not higher than in the general population. Therefore, CD36 deficiency is not a characteristic factor of HCM and has little influence on the pathyphysiology of HCM. |
| Databáze: | OpenAIRE |
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