TY - JOUR
T1 - Comparison of remnant lipoprotein-cholesterol measurements
T2 - the immune adsorption method (RLP-C) and the direct assay with detergent (RemL-C)
AU - Hihara, Mari
AU - Sato, Itsuko
AU - Hayashi, Fujio
AU - Sugiyama, Daisuke
AU - Kawano, Seiji
AU - Fujioka, Yoshio
AU - Ishikawa, Yuichi
AU - Kumagai, Shunichi
PY - 2009/1
Y1 - 2009/1
N2 - Elevation of serum remnant lipoprotein concentration is an emerging risk factor for coronary artery disease. An immunoseparation procedure for remnant-like particle cholesterol(RLP-C) has been evaluated extensively in recent years. In addition, a new detergent-based method has been developed and applied to automated analyzer as "MetaboLead RemL-C" (RemL-C, KYOWA MEDEX CO., LTD.). Then, we compared the concentrations of remnant lipoproteins as RemL-C with those as RLP-C in various conditions. RemL-C assay was intra-assay-reproducible (n=20, CVs: 0.6-2.2%), and reproducible for 2 days in the refrigeration and for 8 hours in room temperature. This assay was also inter-assay-reproducible (during 5 days in the deep freezing, CVs: 1.6-3.0%). The available range for RemL-C assay was between 0.09 and 121.1 mg/dl. There were no detectable interferences from hemoglobin, free/conjugated bilirubin, chyle, and Intrafat. However, heparin influenced the titer of RemL-C concentrations. Correlation of values between RLP-C and RemL-C in 123 samples was excellent (r=0.924, p<0.001). However, different responses to intermediate lipoprotein fraction derived from a patients with type III hyperlipidemia were observed. In conclusion, RemL-C and RLP-C measurements may have a similar clinical significance. Differences in sensitivity for intermediate lipoprotein fraction between both methods may exist.
AB - Elevation of serum remnant lipoprotein concentration is an emerging risk factor for coronary artery disease. An immunoseparation procedure for remnant-like particle cholesterol(RLP-C) has been evaluated extensively in recent years. In addition, a new detergent-based method has been developed and applied to automated analyzer as "MetaboLead RemL-C" (RemL-C, KYOWA MEDEX CO., LTD.). Then, we compared the concentrations of remnant lipoproteins as RemL-C with those as RLP-C in various conditions. RemL-C assay was intra-assay-reproducible (n=20, CVs: 0.6-2.2%), and reproducible for 2 days in the refrigeration and for 8 hours in room temperature. This assay was also inter-assay-reproducible (during 5 days in the deep freezing, CVs: 1.6-3.0%). The available range for RemL-C assay was between 0.09 and 121.1 mg/dl. There were no detectable interferences from hemoglobin, free/conjugated bilirubin, chyle, and Intrafat. However, heparin influenced the titer of RemL-C concentrations. Correlation of values between RLP-C and RemL-C in 123 samples was excellent (r=0.924, p<0.001). However, different responses to intermediate lipoprotein fraction derived from a patients with type III hyperlipidemia were observed. In conclusion, RemL-C and RLP-C measurements may have a similar clinical significance. Differences in sensitivity for intermediate lipoprotein fraction between both methods may exist.
UR - http://www.scopus.com/inward/record.url?scp=63849083788&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=63849083788&partnerID=8YFLogxK
M3 - Article
C2 - 19227187
AN - SCOPUS:63849083788
VL - 57
SP - 24
EP - 30
JO - Rinsho byori. The Japanese journal of clinical pathology
JF - Rinsho byori. The Japanese journal of clinical pathology
SN - 0047-1860
IS - 1
ER -