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STUDY DESIGN One-dimensional polyacrylamide gel electrophoresis was used to study serum esterase enzymatic activity in three groups of patients and one group of normal volunteers. OBJECTIVES To determine whether there is a statistically significant correlation between variations of serum pseudocholinesterase and the perception of pain in patients with(More)
PURPOSE To measure scanner and patient variation in computed tomographic (CT) numbers for electron-beam CT and to determine the ability of calibration phantoms to reduce variability in calcium quantitation. MATERIALS AND METHODS Two calibration phantoms were imaged to ensure longitudinal homogeneity and to determine the short-term intrascanner variation(More)
STUDY DESIGN This two-dimensional gel electrophoretic study analyzed the plasma of six groups of patients to determine the association of an elevated apolipoprotein E variant with peripheral nerve damage (PND). OBJECTIVES To find a statistically significant plasma protein alteration in patients with PND including chronic spinal pain. SUMMARY OF(More)
Non-biased screening of plasma proteins by two-dimensional gel electrophoresis from individuals suffering low back syndrome revealed a polypeptide spot that was increased 2-5-fold over the concentration found in normal control individuals. The apparent molecular weight (34-36 kDa) and pI (5.7) of this spot suggested that it might be apolipoprotein-E.(More)