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Potential application of neogalactosylalbumin in positron emission tomography evaluation of liver function

Potential application of neogalactosylalbumin in positron emission tomography evaluation of liver function
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摘要 AIM To investigate the evaluation of neogalactosylalbumin (NGA) for liver function assessment based on positron emission tomography technology. METHODS Female Kunming mice were assigned randomly to two groups: fibrosis group and normal control group. A murine hepatic fibrosis model was generated by intraperitoneal injection of 10% carbon tetrachloride (CCl4) at 0.4 ml every 48 h for 42 d. F-18-labeled NGA ([F-18] FNGA) was synthesized and administered at a dosage of 3.7 MBq/mouse to both fibrosis mice and normal control mice. Distribution of [F-18] FNGA amongst organs was examined, and dynamic scanning was performed. Parameters were set up to compare the uptake of tracers by fibrotic liver and healthy liver. Serologic tests for liver function were also performed. RESULTS The liver function of the fibrosis model mice was significantly impaired by the use of CCl4. In the fibrosis model mice, hepatic fibrosis was verified by naked eye assessment and pathological analysis. [F-18] FNGA was found to predominantly accumulate in liver and kidneys in both control group (n = 21) and fibrosis group (n = 23). The liver uptake ability (LUA), peak time (T-p), and uptake rate (LUR) of [F-18] FNGA between healthy liver (n = 8) and fibrosis liver (n = 10) were significantly different (P < 0.05, < 0.01, and < 0.05, respectively). LUA was significantly correlated with total serum protein level (TP) (P < 0.05). T-p was significantly correlated with both TP and glucose (Glu) concentration (P < 0.05 both), and LUR was significantly correlated with both total bile acid and Glu concentration (P < 0.01 and < 0.05, respectively). CONCLUSION [F-18] FNGA mainly accumulated in liver and remained for sufficient time. Functionally-impaired liver showed a significant different uptake pattern of [F-18] FNGA compared to the controls. AIM To investigate the evaluation of neogalactosylalbumin(NGA) for liver function assessment based on positron emission tomography technology.METHODS Female Kunming mice were assigned randomly to two groups: fibrosis group and normal control group. A murine hepatic fibrosis model was generated by intraperitoneal injection of 10% carbon tetrachloride(CCl_4) at 0.4 m L every 48 h for 42 d. ^(18)F-labeled NGA([^(18)F]FNGA) was synthesized and administered at a dosage of 3.7 MBq/mouse to both fibrosis mice and normal control mice. Distribution of [^(18)F]FNGA amongst organs was examined, and dynamic scanning was performed. Parameters were set up to compare the uptake of tracers by fibrotic liver and healthy liver. Serologic tests for liver function were also performed.RESULTS The liver function of the fibrosis model mice was significantly impaired by the use of CCl_4. In the fibrosis model mice, hepatic fibrosis was verified by naked eye assessment and pathological analysis. [^(18)F]FNGA was found to predominantly accumulate in liver and kidneys in both control group(n = 21) and fibrosis group(n = 23). The liver uptake ability(LUA), peak time(T_p), and uptake rate(LUR) of [^(18)F]FNGA between healthy liver(n = 8) and fibrosis liver(n = 10) were significantly different(P < 0.05, < 0.01, and < 0.05, respectively). LUA was significantly correlated with total serum protein level(TP)(P < 0.05). T_p was significantly correlated with both TP and glucose(Glu) concentration(P < 0.05 both), and LUR was significantly correlated with both total bile acid and Glu concentration(P < 0.01 and < 0.05, respectively).CONCLUSION[^(18)F]FNGA mainly accumulated in liver and remained for sufficient time. Functionally-impaired liver showed a significant different uptake pattern of [^(18)F]FNGA compared to the controls.
出处 《World Journal of Gastroenterology》 SCIE CAS 2017年第23期4278-4284,共7页 世界胃肠病学杂志(英文版)
基金 Supported by National Natural Science Foundation of China,No.30901453 and No.81201566 National Key Technology Research and Development Program of China,No.BAI06B01 Youth Grant of Peking Union Medical College Hospital
关键词 Neogalactosylalbumin Positron emission tomography Liver function Liver fibrosis Mouse model Neogalactosylalbumin;正电子排放断层摄影术;肝功能;肝纤维变性;老鼠模型
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