KR20190006955A - 측정 대상 물질의 비교 대상 물질에 대한 비율을 구하는 방법, 프로그램, 기억 매체 및 장치 - Google Patents
측정 대상 물질의 비교 대상 물질에 대한 비율을 구하는 방법, 프로그램, 기억 매체 및 장치 Download PDFInfo
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Abstract
Description
도 1b는 본 발명의 제1 실시형태에 의한 HbA1c의 총 Hb에 대한 비율의 측정 기술을 모식적으로 나타내는 도면이다.
도 1c는 HbA1c의 총 Hb에 대한 비율을 측정하는 측정 장치의 일 구성예를 나타내는 기능 블록도이다.
도 2는 항원 항체 반응에 의한 금 콜로이드 응집의 흡수 스펙트럼을 분광 광도계로 측정한 결과의 일례를 나타내는 도면이다. 가로축이 파장, 세로축이 흡광도이며, 경과 시간마다의 해석 결과(측정 결과)가 나타나 있다.
도 3은 도 2의 데이터에 기초하여 얻어지는 도면으로, 파장 525nm에서의 흡광도와 파장 630nm에서의 흡광도의 비율을 구하여 반응 개시 시간(시간=0)으로부터의 경과 시간 의존성을 나타낸 도면이다.
도 4는 총 Hb농도(y)와 흡광도(x)의 관계를 나타내는 도면이다.
도 5는 총 Hb농도가 0.5, 0.75, 1.0, 1.5, 2.0, 2.5mg/mL이고 HbA1c의 총 Hb에 대한 비율이 3.7~15.3%인 검체를 이용하여 측정을 행하였을 때의 반응 개시 5분 후의 HbA1c의 총 Hb에 대한 비율과 파장 525nm에서의 흡광도 변화(변화량Δ)를 플롯한 그래프이다.
도 6은 가로축을 총 Hb농도×HbA1c의 총 Hb에 대한 비율=[x1]로 한 도면이다.
도 7a는 총 Hb농도가 1.5mg/mL일 때에 Factor가 1.00이 되고, 총 Hb농도가 낮아지면 높아지고 총 Hb농도가 높아지면 낮아지도록 농도 계수(Factor)를 설정한 도면이다.
도 7b는 총 Hb농도마다 농도 계수(Factor)를 최적화한 후의 도 7a의 회귀 곡선을 나타내는 도면이다.
도 8은 도 7b에 도시된 농도 계수를 이용하여 [x2]와 흡광도 변화(변화량Δ)의 관계를 구한 도면이다.
도 9는 도 8에 기초하여 흡광도 변화와 [x2]의 관계를 총 Hb농도에 의존하지 않도록 하여 일률적으로 구한 검량선이다.
도 10은 본 실시형태에 의한 처리의 일례를 나타내는 흐름도이다.
도 11a는 도 10에 이어지는 도면이다.
도 11b는 도 11a에 이어지는 도면으로, 측정값 산출의 순서를 정리한 흐름도이다.
도 12는 농도 계수(Factor)를 구하는 도 11a의 단계 S7의 처리예를 나타내는 흐름도이다.
도 13은 농도 계수(Factor)를 구하는 도 12의 단계 S7-4의 처리예를 나타내는 흐름도이다.
도 14는 총 Hb농도가 0.5, 0.75, 1.0, 1.5, 2.0, 2.5mg/mL이고 HbA1c의 총 Hb에 대한 비율이 3.7~15.3%인 검체를 이용하여 측정을 행하였을 때의 반응 개시 5분 후의 HbA1c의 총 Hb에 대한 비율과, 파장 525nm에서의 흡광도와 파장 630nm에서의 흡광도의 비율, 즉 흡광도 비(Ratio)를 플롯한 그래프이다.
도 15는 가로축을 총 Hb농도×HbA1c의 총 Hb에 대한 비율=[x1]로 한 도면이다.
도 16a는 총 Hb농도가 1.5mg/mL일 때에 Factor가 1.00이 되고, 총 Hb농도가 낮아지면 높아지고 총 Hb농도가 높아지면 낮아지도록 농도 계수(Factor)를 설정한 도면이다.
도 16b는 총 Hb농도마다 농도 계수(Factor)를 최적화한 후의 도 16a의 회귀 곡선을 나타내는 도면이다.
도 17은 도 16b에 도시된 농도 계수(Factor)를 이용하여 [x2]와 흡광도 비(Ratio)의 관계를 구한 도면이다.
도 18은 도 17의 세로축과 가로축을 바꾼 검량선을 나타내는 도면이다.
도 19는 본 발명의 제3 실시형태에 의한, 총 Hb농도가 1.0, 2.0, 2.5mg/mL이고 HbA1c의 총 Hb에 대한 비율이 5.7~15.3%인 검체를 이용하여 측정을 행하였을 때의 반응 개시 5분 후의 HbA1c의 총 Hb에 대한 비율과 파장 525nm에서의 흡광도 변화(변화량Δ)를 플롯한 그래프로서 농도가 상이한 측정 대상 물질의 희석 계열을 3종류로 한 예를 나타내는 도면이다.
도 20은 가로축을 총 Hb농도×HbA1c의 총 Hb에 대한 비율=[x1]로 한 도면이다.
도 21a는 Hb농도가 2.0mg/mL일 때에 Factor가 1.00이 되고, 총 Hb농도가 낮아지면 높아지고 총 Hb농도가 높아지면 낮아지도록 농도 계수(Factor)를 설정한 도면이다.
도 21b는 총 Hb농도마다 농도 계수(Factor)를 최적화한 후의 도 21a의 회귀 곡선을 나타내는 도면이다.
도 22는 도 21b에 도시된 농도 계수를 이용하여 [x2]와 흡광도 변화(변화량Δ)의 관계를 구한 도면이다.
도 23은 도 22에 기초하여 흡광도 변화와 [x2]의 관계를 총 Hb농도에 의존하지 않도록 하여 일률적으로 구한 검량선이다.
본 명세서에서 인용한 모든 간행물, 특허 및 특허출원은 그대로 인용에 의해 본 명세서에 도입되는 것으로 한다.
Claims (10)
- 측정 대상 물질의 측정 시약을 이용한 측정 대상 물질의 비교 대상 물질에 대한 비율을 구하는 방법으로서,
비교 대상 물질의 농도가 상이한 측정 대상 물질의 희석 계열과 상기 측정 시약의 반응이 진행됨으로써 발생하는 상기 측정 대상 물질의 희석 계열 각각의 흡광도 변화량을 구하여 얻어지는 복수의 검량선이 하나의 검량선에 수속되는 농도 계수를 비교 대상 물질의 농도마다 구하는 과정에 있어서,
측정 대상 물질의 비교 대상 물질에 대한 비율(%)=[X]/(농도 계수×비교 대상 물질의 농도) (1)
을 얻는 단계와,
비교 대상 물질의 농도마다의 농도 계수와 비교 대상 물질의 농도의 관계를 나타내는 회귀식을 구하는 단계를 갖는 측정 대상 물질의 비교 대상 물질에 대한 비율을 구하는 방법. - 청구항 1에 있어서,
상기 흡광도 변화량을 구하는 단계는,
측정 대상 물질을 포함한 검체와 상기 측정 시약에 의해 발생하는 반응이 진행됨으로써 발생하는 특징적인 단파장에서의 흡광도 증가 혹은 감소의 변화량을 구하는 단계, 혹은
측정 대상 물질을 포함한 검체와 상기 측정 시약에 의해 발생하는 반응이 진행됨으로써 발생하는 특징적인 2파장에서의 흡광도 증가 혹은 감소의 변화량으로서, 흡광도가 증가하거나 혹은 감소하는 제1 파장에서의 제1 흡광도와, 흡광도가 증가하거나 혹은 감소하는 제2 파장에서의 제2 흡광도의 차 혹은 비를 구하는 단계를 갖는 방법. - 청구항 1 또는 청구항 2에 있어서,
상기 측정 시약이, 면역법의 응집법이나 응집 저지법 혹은 효소법 중 어느 하나를 이용하는 측정 시약이며,
상기 식(1), 및 비교 대상 물질의 농도마다 최적화한 농도 계수와 비교 대상 물질의 농도의 회귀식과, 측정 시약을 이용하여 측정 대상 물질을 포함한 검체를 측정하여 얻는 흡광도 변화량으로부터, 측정 대상 물질의 비교 대상 물질에 대한 비율을 구하는 단계를 갖는 방법. - 컴퓨터에,
청구항 1 내지 청구항 3 중 어느 한 항에 기재된 방법을 실행시키기 위한 프로그램. - 청구항 4에 기재된 프로그램을 기록하는 컴퓨터 판독 가능한 기록 매체.
- 측정 대상 물질의 측정 시약을 이용한 측정 대상 물질의 비교 대상 물질에 대한 비율을 구하는 장치로서,
청구항 1 내지 청구항 3 중 어느 한 항에 기재된 방법을 실행시키기 위한 제어부와,
흡광도 측정부를 갖는 장치이며,
제어부와 흡광도 측정부는 일체 혹은 별도의 개체로 설치되어 있는 장치. - 청구항 4에 기재된 프로그램을 내장하는 제어부를 갖는 장치.
- 청구항 4에 기재된 프로그램을 읽어들이는 제어부를 갖는 장치.
- 청구항 1 내지 청구항 3 중 어느 한 항에 기재된 방법을 실행하여 얻어진 회귀식을 내장하는 제어부를 갖는 장치.
- 청구항 1 내지 청구항 3 중 어느 한 항에 기재된 방법을 실행하여 얻어진 회귀식을 읽어들이는 제어부를 갖는 장치.
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