KR101939454B1 - 생체 내 과분극화 c13 피루베이트 자기공명분광법을 이용하여 새로운 정량적 생체지표를 통한 비알코올성 지방간질환 진단 방법 - Google Patents
생체 내 과분극화 c13 피루베이트 자기공명분광법을 이용하여 새로운 정량적 생체지표를 통한 비알코올성 지방간질환 진단 방법 Download PDFInfo
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- KR101939454B1 KR101939454B1 KR1020170035451A KR20170035451A KR101939454B1 KR 101939454 B1 KR101939454 B1 KR 101939454B1 KR 1020170035451 A KR1020170035451 A KR 1020170035451A KR 20170035451 A KR20170035451 A KR 20170035451A KR 101939454 B1 KR101939454 B1 KR 101939454B1
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- pyruvate
- fatty liver
- liver disease
- lactate
- alanine
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- A61K49/00—Preparations for testing in vivo
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Abstract
Description
도 1b는 본 발명의 일 실시예에 따른 대조군의 시분할 스펙트럼을 나타낸 그래프이다.
도 1c는 본 발명의 일 실시예에 따른 비알코올성 지방간질환 모델의 시분할 스펙트럼을 나타낸 그래프이다.
도 1d는 본 발명의 일 실시예에 따라 대조군의 시간에 따른 각 대사물질별 농도 변화를 나타낸 그래프이다.
도 1e는 본 발명의 일 실시예에 따라 비알코올성 지방간질환 모델의 시간에 따른 각 대사물질별 농도 변화를 나타낸 그래프이다.
도 1f는 본 발명의 일 실시예에 따라 대조군을 대상으로 과분극화 [1-13C] 피루베이트로부터 시간에 따른 생체 내 대사물질 (락테이트, 피루베이트-수화물, 알라닌)의 간 부위에서 1분 동안 얻은 합산된 13C MR 스펙트럼이다.
도 1g는 본 발명의 일 실시예에 따라 비알코올성 지방간질환 모델을 대상으로 과분극화 [1-13C] 피루베이트로부터 시간에 따른 생체 내 대사물질 (락테이트, 피루베이트-수화물, 알라닌)의 간 부위에서 1분 동안 얻은 합산된 13C MR 스펙트럼이다.
도 2a는 본 발명의 일 실시에에 따른 대조군과 비알코올성 지방간질환 모델군에서 과분극화 [1-13C] 피루베이트를 주입하여 각 주차별로 시간에 따른 대사물질에 대한 신호 변화를 측정한 결과를 나타낸 그래프이다.
도 2b는 본 발명의 일 실시예에 따른 대조군과 비알코올성 지방간질환 모델군에서 과분극화 [1-13C] 피루베이트를 주입하여 각 주차별로 시간에 따른 대사물질에 대한 신호 변화를 측정한 결과를 나타낸 그래프이다.
도 2c는 본 발명의 일 실시에에 따른 대조군과 비알코올성 지방간질환 모델군에서 과분극화 [1-13C] 피루베이트를 주입하여 각 주차별로 시간에 따른 대사물질에 대한 신호 변화를 측정한 결과를 나타낸 그래프이다.
도 3a는 본 발명의 일 실시예에 따른 대조군에서 4주차의 간 조직에서의 조직학적 변화를 나타낸 사진이다.
도 3b는 본 발명의 일 실시예에 따른 비알코올성 지방간질환 모델군에서의 조직병리학적 변화를 나타낸 사진이다.
도 3c는 본 발명의 일 실시에에 따른 대조군에서 6주차의 간 조직에서의 조직학적 변화를 나타낸 사진이다.
도 3d는 본 발명의 일 실시에예 따른 비알코올성 지방간질환 모델군에서의 조직병리학적 변화를 나타낸 사진이다.
도 3e는 본 발명의 일 실시예에 따른 대조군 및 비알코올성 지방간질환 모델군 간 지방간 조직의 총 지질 함량(%) 변화를 나타낸 그래프이다.
0주 (시험 시작 전) | ||
그룹 | 대조군 (n=3) | 실험군 (n=4) |
몸무게 (g) | 295.0±4.4 | 295.3±1.9 |
ALT (U/L) | 44.3±6.3 | 38.3±0.9 |
AST (U/L) | 89.7±10.9 | 68.0±2.5 |
LDH (U/L) | 1019.3±290.5 | 504.3±74.4 |
HDL (mg/dL) | 48.0±3.2 | 41.5±1.1 |
LDL (mg/dL) | 8.7±0.5 | 10.3±0.6 |
총콜레스테롤 (mg/dL) | 64.3±2.3 | 63.8±1.3 |
글루코즈 (mg/dL) | 234.0±5.5 | 225.8±8.6 |
2주차 | ||
그룹 | 대조군 (n=3) | 실험군 (n=4) |
몸무게 (g) | 374.0±10.0 | 403.5±5.5 |
ALT (U/L) | 31.3±2.0 | 35.8±0.4 |
AST (U/L) | 67.0±2.4 | 64.0±1.7 |
LDH (U/L) | 318.3±21.7 | 397.3±41.2 |
HDL (mg/dL) | 46.7±1.7 | 45.0±1.2 |
LDL (mg/dL) | 5.0±0.6 | 8.0±0.6 |
총콜레스테롤 (mg/dL) | 65.3±4.0 | 67.3±4.3 |
글루코즈 (mg/dL) | 250.3±13.1 | 252.3±13.6 |
4주차 | ||
그룹 | 대조군 (n=3) | 실험군 (n=4) |
몸무게 (g) | 428.0±12.3 | 474.3±10.2 |
ALT (U/L) | 26.3±1.3 | 38.0±1.2 |
AST (U/L) | 73.3±6.2 | 77.8±4.5 |
LDH (U/L) | 262.0±46.2 | 716.3±188.6 |
HDL (mg/dL) | 51.0±4.9 | 50.8±2.0 |
LDL (mg/dL) | 7.3±1.1 | 13.8±0.6 |
총콜레스테롤 (mg/dL) | 69.3±3.4 | 66.8±2.7 |
글루코즈 (mg/dL) | 249.0±18.6 | 219.0±2.3 |
6주차 | ||
그룹 | 대조군 (n=3) | 실험군 (n=4) |
몸무게 (g) | 472.7±11.9 | 532.8±9.7 |
ALT (U/L) | 22.3±1.9 | 42.5±2.6 |
AST (U/L) | 57.7±2.7 | 97.8±7.5 |
LDH (U/L) | 338.3±4.2 | 1003.5±215.6 |
HDL (mg/dL) | 58.0±1.7 | 49.5±1.9 |
LDL (mg/dL) | 9.7±0.2 | 16.0±1.2 |
총콜레스테롤 (mg/dL) | 78.0±3.5 | 69.8±6.5 |
글루코즈 (mg/dL) | 223.3±1.9 | 247.3±15.4 |
0주 (시험 시작 전) | ||
그룹 | 대조군 (n=3) | 실험군 (n=4) |
알라닌/피루베이트(%) | 18.9±0.9 | 21.6±2.2 |
락테이트/피루베이트(%) | 18.8±2.2 | 15.4±0.6 |
피루베이트수화물/피루베이트(%) | 11.9±0.2 | 12.1±0.4 |
2주차 | ||
알라닌/피루베이트(%) | 18.4±1.8 | 23.1±1.0 |
락테이트/피루베이트(%) | 25.7±2.8 | 26.0±1.5 |
피루베이트수화물/피루베이트(%) | 11.5±0.4 | 11.3±0.2 |
4주차 | ||
알라닌/피루베이트(%) | 18.1±2.1 | 24.2±1.6 |
락테이트/피루베이트(%) | 22.5±2.5 | 35.0±4.1 |
피루베이트수화물/피루베이트(%) | 11.1±0.1 | 11.3±0.5 |
6주차 | ||
알라닌/피루베이트(%) | 18.7±1.3 | 25.5±0.7 |
락테이트/피루베이트(%) | 22.7±1.8 | 36.8±2.2 |
피루베이트수화물/피루베이트(%) | 11.0±0.3 | 11.8±0.2 |
Hepatic lipid content (%) | ||
CD | HFD | |
4 주차 | 5±0.4 | 13±0.3 |
6 주차 | 5±0.9 | 21±3.2 |
Claims (3)
- 과분극화된 13C-피루베이트(pyruvate)를 포함하는 조성물이 주사된 대상체로부터 획득한 13C-피루베이트의 13C-자기공명분광영상, 상기 13C-피루베이트의 대사물질인 13C-락테이트(lactate) 및 13C-알라닌(alanine)의 13C-자기공명분광영상으로부터 각 대사물질의 신호 곡선 을 획득하는 단계;
13C-락테이트의 신호 곡선의 면적을 13C-피루베이트의 신호 곡선의 면적으로 나눈 13C-락테이트 대사전환비율(RL1)을 계산하는 단계;
13C-알라닌의 신호 곡선의 면적을 13C-피루베이트의 신호 곡선의 면적으로 나눈 13C-알라닌 대사전환비율(RA1)을 계산하는 단계;
13C-락테이트 대사전환비율(RL1)과 표준 값(RL0)의 차이를 계산하는 단계; 및
13C-알라닌 대사전환비율(RA1)과 표준 값(RA0) 의 차이를 계산하는 단계;
를 포함하는 비알코올성 지방간질환 진단에 관한 정보를 제공하는 방법. - 제1항에 있어서, 상기 과분극화된 13C-피루베이트를 포함하는 조성물은,
13C-피루브산에 트리틸 라디컬(trityl radical)을 혼합하고, DNP(dynamic nuclear polarization)방법에 의하여 과분극화시킨 후, 완충액(dissolution)으로 용해시켜 수득한 것인, 비알코올성 지방간질환 진단에 관한 정보를 제공하는 방법. - 제1항에 있어서, 상기 13C-자기공명분광영상은 13C-피루베이트를 포함하는 조성물을 주사한 후 120초 경과되기 전에 획득하는 것인, 비알코올성 지방간질환 진단에 관한 정보를 제공하는 방법.
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