申请人:Shiseido Company, Ltd.
公开号:US10393749B2
公开(公告)日:2019-08-27
The present invention addresses the problem of identifying a biomarker of renal failure, said biomarker being available from urine or blood, and fluctuating from an early stage than glomerular filtration rate and serum creatinine level, and thus developing a technique for diagnosing early stage kidney failure. A method for analyzing the blood, plasma, serum or urine of a renal failure suspected subject comprises a step of measuring the concentration of a pair of D-form and L-form of at least one amino acid selected from the amino acid group consisting of [D-serine] and [L-serine], etc., contained in the blood, plasma, serum or urine of the subject, and calculating, as an pathological index of the subject, the ratio of the D-form concentration to the L-form concentration or the percentage of the D-form concentration relative to the total concentration of the D-form and L-form.
本发明要解决的问题是确定肾功能衰竭的生物标志物,所述生物标志物可从尿液或血液中获得,并且从早期阶段就比肾小球滤过率和血清肌酐水平波动,从而开发出一种诊断早期肾功能衰竭的技术。分析疑似肾衰竭受试者的血液、血浆、血清或尿液的方法包括以下步骤:测量选自[D-丝氨酸]和[L-丝氨酸]等组成的氨基酸组的至少一种氨基酸的一对 D-形式和 L-形式的浓度、作为受试者的病理指标,计算 D-形式浓度与 L-形式浓度之比,或 D-形式浓度占 D-形式和 L-形式总浓度的百分比。