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Inicio Clínica e Investigación en Arteriosclerosis Efecto de diferentes polimorfismos en el gen del OATP-C sobre la respuesta hipol...
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Vol. 16. Issue 6.
Pages 227-232 (January 2004)
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Vol. 16. Issue 6.
Pages 227-232 (January 2004)
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Efecto de diferentes polimorfismos en el gen del OATP-C sobre la respuesta hipolipemiante al tratamiento con pravastatina
Effect of different polymorphisms in OATP-C gene on the hypolipidemic response to pravastatin therapy
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R. Peñaa, J.M. Mostazaa,
Corresponding author
jmostaza.hciii@salud.madrid.org

Correspondencia: Unidad de Arteriosclerosis. Hospital Carlos III. Sinesio Delgado, 10. 28029 Madrid. España
, C. Lahoza, E. Subiratsb, X. Pintóc, F. Lagunaa, M.F. García-Iglesiasa, E. Torrecillaa
a Unidad de Arteriosclerosis. Hospital Carlos III. Madrid. España
b Servicio de Medicina Interna. Hospital de Puigcerdà. Puigcerdà. Girona. España
c Unidad de lípidos. Hospital de Bellvitge. L’Hospitalet de Llobregat. Barcelona. España
grupo del estudio RAP
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Article information
Fundamento

Existe una gran variabilidad en la respuesta de los lípidos y lipoproteínas plasmáticas al tratamiento con estatinas, en parte debida a factores genéticos. Recientemente se han identificado diversos polimorfismos en el gen del OATP-C, transportador implicado en la internalización de la pravastatina en el hepatocito, que afectan a su actividad. El objetivo del presente estudio fue evaluar el efecto de diferentes polimorfismos en el gen del OATP-C sobre la respuesta de los lípidos y las lipoproteínas plasmáticas a la pravastatina

Pacientes y métodos

Se seleccionó a 290 sujetos hipercolesterolémicos (el 56% mujeres, con una edad media de 57 años), con indicación de tratamiento farmacológico hipolipemiante tras seguir una dieta baja en grasa saturada y colesterol. Las determinaciones de lípidos y lipoproteínas se realizaron de forma centralizada, antes y después de 16 semanas de tratamiento, con 20 mg/día de pravastatina

Resultados

El polimorfismo T217C en el exón 2 del gen del OATP-C no se detectó en ningún sujeto de nuestra población. La distribución del polimorfismo T521C en el exón 5 fue de un 70% el T/T, 29% el T/C y 1% el C/C. El polimorfismo T521C no tuvo ningún efecto sobre los valores basales de lípidos ni sobre su respuesta al tratamiento con pravastatina

Conclusión

El polimorfismo T521C en el exón 5 del gen del OATP-C no influye sobre la respuesta hipolipemiante a la pravastatina

Palabras clave:
Polimorfismos genéticos
OATP-C
Pravastatina
Colesterol
Background

Considerable variability exists in the plasma lipid and lipoprotein response to statin treatment due, in part, to genetic factors. Multiple polymorphisms in the OATP-C gene, a transporter involved in the hepatic uptake of pravastatin, some of which affect the transport activity, have recently been identifed. The aim of the present study was to evaluate the effect of different polymorphisms in the OATP-C gene on the plasma lipoprotein response to pravastatin treatment

Patients and methods

290 subjects (56% women; mean age: 57 years) who were hypercholesterolemic despite a diet poor in saturated fat and cholesterol were selected for this study. Plasma lipids and lipoproteins were measured centrally, before and after 16 weeks of treatment with 20 mg/d of pravastatin

Results

The T217C polymorphism in exon 2 of the OATP-C gene was not detected in our population. Distribution of the T521C polymorphism in exon 5 was 70% T/T, 29% T/C and 1% C/C. The T521C polymorphism neither influenced baseline lipid and lipoprotein levels nor their response to pravastatin therapy

Conclusion

The T521C polymorphism in exon 5 of the OATP-C gene does not appear to influence the hypolipidemic effect of pravastatin treatment

Key words:
Genetic polymorphisms
OATP-C
Pravastatin
Cholesterol
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