KL-6 is Not Ineffective Biomarker of Indium Lung
KL-6 is Not Ineffective Biomarker of Indium Lung
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KL-6 并非无效的铟肺生物标志物
DOI:
10.1007/s00420-013-0873-x
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Hirata M
中科院分区:
文献类型:
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作者:
Nakano M;Omae K;Tanaka A;Hirata M
It has been reported that serum Krebs von den Lungen-6 (KL-6)(Kohno et al. 1989) is the most sensitive biomarker of indium-induced lung disease (Chonan et al. 2007; Hamaguchi et al. 2008; Nakano et al. 2009). In a previous report, Liu et al.(2012) noted that serum KL-6 was not elevated in indium tin oxide (ITO) processing workers and suggested that KL-6 may not be an appropriate indicator for evaluating the health of ITO workers. However, the KL-6 values reported in their paper are extremely different from those in our articles (Chonan et al. 2007; Hamaguchi et al. 2008; Nakano et al. 2009). We presumed that the cause of the difference may be a discrepancy in the measurement of serum KL-6 and compared their method using the ‘‘Human Krebs yon den Lundgen-6 ELISA Kit’’(Cusabio Biotech Co., Ltd., Cat. no. CSB-E12700h, China)(KL-6C)(Cusabio Biotech Co. 2013) with our method using the Picolumi KL-6 kit (EIDIA Co., Ltd., Japan)(KL-6J)(Eidia Co. 2013) in 66 Japanese indium-exposed workers (mean age 46 year, SD 13.3, range of indium in serum:\0.1–69.5 μg/L). The measurement of KL-6C and KL-6J was performed at a nationwide clinical laboratory (Special Reference Laboratory, Tokyo, Japan). KL-6C below the detection limit (3.9 U/ml) was ascribed to an arbitrary value of 3.9 U/ml. The geometric means (geometric standard deviation) of KL-6C and KL-6J were 5.00 U/ml (1.63) and 345.4 U/ml (1.86), respectively. Figure 1 is a scatter chart of KL-6J and KL-6C and showed