1H-MRS metabonomic analysis of plasma samples of esophageal cancer patients based on different pattern recognition / 中华肿瘤杂志
Chinese Journal of Oncology
;
(12): 681-684, 2010.
Artículo
en Chino
| WPRIM
| ID: wpr-293527
ABSTRACT
<p><b>OBJECTIVE</b>To analyze the metabonomic (1)H-MRS of plasma samples from patients with esophageal cancer and healthy controls applying different pattern recognition methods, and to explore the potential of application of (1)H-MR-based metabonomics in clinical research.</p><p><b>METHODS</b>(1)H-MR was performed on plasma samples from 109 EC patients and 50 health controls to analyze the metabonomic variation between EC patients and healthy subjects and the corresponding (1)H-MRS were recorded on Varian Unity ANOVA 600 MHz to perform principal components analysis (PCA), partial least squares discriminant analysis (PLS-DA), orthogonal partial least squares discriminant analysis (OPLS-DA), respectively.</p><p><b>RESULTS</b>OPLS-DA analysis could correctly separate almost all the plasma samples from EC patients and health controls, better than both the PCA and PLS-DA. The plasma levels of leucine, alanine, isoleucine, valine, glycoprotein, lactate, acetone, acetate, choline, isobutyrate, unsaturated lipid, VLDL, LDL, 1-methylhistidine were significantly decreased in EC patients (r total > 0.27, P < 0.05), while that of dimethylamine, α-glucose, β-glucose, citric acid increased in the EC patients (r total < -0.27, P < 0.05).</p><p><b>CONCLUSIONS</b>The analysis of metabonomic (1)H-MRS of plasma samples by OPLS-DA method can eliminate the influence of non-experimental factors and decrease the heterogeneity of samples. It is useful and of great potential for application in clinical diagnosis and research of esophageal cancer.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Plasma
/
Sangre
/
Análisis Químico de la Sangre
/
Neoplasias Esofágicas
/
Espectroscopía de Resonancia Magnética
/
Análisis Discriminante
/
Análisis de los Mínimos Cuadrados
/
China
/
Análisis de Componente Principal
/
Etnología
Límite:
Adulto
/
Anciano
/
Femenino
/
Humanos
/
Masculino
País/Región como asunto:
Asia
Idioma:
Chino
Revista:
Chinese Journal of Oncology
Año:
2010
Tipo del documento:
Artículo
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