BACKGROUND Alterations in plasma and intestinal metabolites contribute to the pathogenesis and progression of alcohol-related liver cirrhosis(ALC).AIM To explore the common and different metabolites in the plasma and ...BACKGROUND Alterations in plasma and intestinal metabolites contribute to the pathogenesis and progression of alcohol-related liver cirrhosis(ALC).AIM To explore the common and different metabolites in the plasma and feces of patients with ALC and evaluate their clinical implications.METHODS According to the inclusion and exclusion criteria,27 patients with ALC and 24 healthy controls(HCs)were selected,and plasma and feces samples were collected.Liver function,blood routine,and other indicators were detected with automatic biochemical and blood routine analyzers.Liquid chromatography-mass spectrometry was used to detect the plasma and feces metabolites of the two groups and the metabolomics of plasma and feces.Also,the correlation between metabolites and clinical features was analyzed.RESULTS More than 300 common metabolites were identified in the plasma and feces of patients with ALC.Pathway analysis showed that these metabolites are enriched in bile acid and amino acid metabolic pathways.Compared to HCs,patients with ALC had a higher level of glycocholic acid(GCA)and taurocholic acid(TCA)in plasma and a lower level of deoxycholic acid(DCA)in the feces,while L-threonine,L-phenylalanine,and L-tyrosine increased simultaneously in plasma and feces.GCA,TCA,L-methionine,L-phenylalanine,and L-tyrosine in plasma were positively correlated with total bilirubin(TBil),prothrombin time(PT),and maddrey discriminant function score(MDF)and negatively correlated with cholinesterase(CHE)and albumin(ALB).The DCA in feces was negatively correlated with TBil,MDF,and PT and positively correlated with CHE and ALB.Moreover,we established a P/S BA ratio of plasma primary bile acid(GCA and TCA)to fecal secondary bile acid(DCA),which was relevant to TBil,PT,and MDF score.CONCLUSION The enrichment of GCA,TCA,L-phenylalanine,L-tyrosine,and L-methionine in the plasma of patients with ALC and the reduction of DCA in feces were related to the severity of ALC.These metabolites may be used as indicators to evaluate the progression of alcohol-related liver cirrhosis.展开更多
儿童活动性结核病存在标本获取困难和病原学诊断阳性率低等问题,而利福平耐药实时荧光定量核酸扩增检测技术(Mycobacterium tuberculosis and rifampin-resistant,简称“Xpert”)作为一种快速检测结核分枝杆菌(MTB)和利福平耐药性的方法...儿童活动性结核病存在标本获取困难和病原学诊断阳性率低等问题,而利福平耐药实时荧光定量核酸扩增检测技术(Mycobacterium tuberculosis and rifampin-resistant,简称“Xpert”)作为一种快速检测结核分枝杆菌(MTB)和利福平耐药性的方法,以较高的敏感度和特异度为结核病的诊断提供了可靠的依据。目前,该方法已广泛应用于痰液或胃液检测,关于粪便样本对诊断肺结核的应用价值基本得到肯定,但肺外结核应用仍需要大量研究验证。笔者就该方法用于检测儿童结核病粪便样本中的MTB进行综述,为Xpert用于儿童粪便检测在临床中的应用提供参考。展开更多
基金Supported by National Key R&D Program of China,No.21YFC2301801Capital's Funds for Health Improvement and Research of China,No.2020-1-2171.
文摘BACKGROUND Alterations in plasma and intestinal metabolites contribute to the pathogenesis and progression of alcohol-related liver cirrhosis(ALC).AIM To explore the common and different metabolites in the plasma and feces of patients with ALC and evaluate their clinical implications.METHODS According to the inclusion and exclusion criteria,27 patients with ALC and 24 healthy controls(HCs)were selected,and plasma and feces samples were collected.Liver function,blood routine,and other indicators were detected with automatic biochemical and blood routine analyzers.Liquid chromatography-mass spectrometry was used to detect the plasma and feces metabolites of the two groups and the metabolomics of plasma and feces.Also,the correlation between metabolites and clinical features was analyzed.RESULTS More than 300 common metabolites were identified in the plasma and feces of patients with ALC.Pathway analysis showed that these metabolites are enriched in bile acid and amino acid metabolic pathways.Compared to HCs,patients with ALC had a higher level of glycocholic acid(GCA)and taurocholic acid(TCA)in plasma and a lower level of deoxycholic acid(DCA)in the feces,while L-threonine,L-phenylalanine,and L-tyrosine increased simultaneously in plasma and feces.GCA,TCA,L-methionine,L-phenylalanine,and L-tyrosine in plasma were positively correlated with total bilirubin(TBil),prothrombin time(PT),and maddrey discriminant function score(MDF)and negatively correlated with cholinesterase(CHE)and albumin(ALB).The DCA in feces was negatively correlated with TBil,MDF,and PT and positively correlated with CHE and ALB.Moreover,we established a P/S BA ratio of plasma primary bile acid(GCA and TCA)to fecal secondary bile acid(DCA),which was relevant to TBil,PT,and MDF score.CONCLUSION The enrichment of GCA,TCA,L-phenylalanine,L-tyrosine,and L-methionine in the plasma of patients with ALC and the reduction of DCA in feces were related to the severity of ALC.These metabolites may be used as indicators to evaluate the progression of alcohol-related liver cirrhosis.
文摘儿童活动性结核病存在标本获取困难和病原学诊断阳性率低等问题,而利福平耐药实时荧光定量核酸扩增检测技术(Mycobacterium tuberculosis and rifampin-resistant,简称“Xpert”)作为一种快速检测结核分枝杆菌(MTB)和利福平耐药性的方法,以较高的敏感度和特异度为结核病的诊断提供了可靠的依据。目前,该方法已广泛应用于痰液或胃液检测,关于粪便样本对诊断肺结核的应用价值基本得到肯定,但肺外结核应用仍需要大量研究验证。笔者就该方法用于检测儿童结核病粪便样本中的MTB进行综述,为Xpert用于儿童粪便检测在临床中的应用提供参考。
