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《医学前沿(英文)》 2018年 第12卷 第3期 页码 262-268 doi: 10.1007/s11684-017-0584-x
γδ T cells display unique developmental, distributional, and functional patterns and can rapidly respond to various insults and contribute to diverse diseases. Different subtypes of γδ T cells are produced in the thymus prior to their migration to peripheral tissues. γδ T cells are enriched in the liver and exhibit liver-specific features. Accumulating evidence reveals that γδ T cells play important roles in liver infection, non-alcoholic fatty liver disease, autoimmune hepatitis, liver fibrosis and cirrhosis, and liver cancer and regeneration. In this study, we review the properties of hepatic γδ T cells and summarize the roles of γδ T cells in liver diseases. We believe that determining the properties and functions of γδ T cells in liver diseases enhances our understanding of the pathogenesis of liver diseases and is useful for the design of novel γδ T cell-based therapeutic regimens for liver diseases.
关键词: γδT cells liver infection non-alcoholic fatty liver disease autoimmune hepatitis liver fibrosis and cirrhosis liver cancer liver regeneration
Correlation between viral load and liver cirrhosis in chronic hepatitis B patients
Lili LIU MM , Jiyao WANG MD , Weimin SHE MM ,
《医学前沿(英文)》 2009年 第3卷 第3期 页码 271-276 doi: 10.1007/s11684-009-0054-1
Assessment of liver volume variation to evaluate liver function
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《医学前沿(英文)》 2012年 第6卷 第4期 页码 421-427 doi: 10.1007/s11684-012-0223-5
In order to assess the value of liver volumetry in cirrhosis and acute liver failure (ALF) patients, we explored the correlation between hepatic volume and severity of the hepatic diseases. The clinical data of 48 cirrhosis patients with 60 normal controls and 39 ALF patients were collected. Computed tomography-derived liver volume (CTLV) and body surface area (BSA) of normal controls were calculated to get a regression formula for standard liver volume (SLV) and BSA. Then CTLV and SLV of all patients were calculated and grouped by Child-Turcotte-Pugh classification for cirrhosis patients and assigned according to prognosis of ALF patients for further comparison. It turned out that the mean liver volume of the control group was 1 058±337 cm3. SLV was correlated with BSA according to the regression formula. The hepatic volume of cirrhosis patients in Child A, B level was not reduced, but in Child C level it was significantly reduced with the lowest liver volume index (CTLV/SLV). Likewise, in the death group of ALF patients, the volume index was significantly lower than that of the survival group. Based on volumetric study, we proposed an ROC (receiver operating characteristic) analysis to predict the prognosis of ALF patients that CTLV/SLV<83.9% indicates a poor prognosis. In conclusion, the CTLV/SLV ratio, which reflects liver volume variations, correlates well with the liver function and progression of cirrhosis and ALF. It is also a very useful marker for predicting the prognosis of ALF.
关键词: liver volume variation cirrhosis acute liver failure (ALF)
Expression of integrin in hepatic fibrosis and intervention of resveratrol
Jianye WU, Chuanyong GUO, Jun LIU, Xuanfu XUAN
《医学前沿(英文)》 2009年 第3卷 第1期 页码 100-107 doi: 10.1007/s11684-009-0013-x
关键词: liver fibrosis integrin-β1 resveratrol tumor growth factor-β tissue inhibitor of metalloproteinase-1
肝硬化患者胃黏膜微生物菌群特征及其与胃肠道症状的相关性分析 Article
陈燕飞, 郭静, 陈春雷, 石鼎, 方戴琼, 季峰, 李兰娟
《工程(英文)》 2021年 第7卷 第4期 页码 507-514 doi: 10.1016/j.eng.2020.04.014
研究表明,肝硬化患者的口腔和肠道微生物群与健康人群存在差异。胃位于口腔和肠道之间,关于其黏膜微生物群结构所知甚少。本研究采用16S rRNA焦磷酸测序技术分析了肝硬化患者和对照组的胃黏膜微生物群。研究发现,组织学和测序法均证实肝硬化患者幽门螺杆菌感染率显著降低。在幽门螺杆菌阴性人群中,可以按细菌组成结构将胃黏膜微生物群分为4个聚类,其中聚类1和2主要是肝硬化患者,聚类3主要是健康人群,而聚类4中肝硬化患者和健康人群各占一半左右。这些不同聚类间的成分和功能存在显著差异。在属的水平上,聚类1和2分别富集奈瑟菌和链球菌。在功能基因分类上,相对而言,聚类2缺乏涉及遗传信息处理以及与聚糖生物合成和代谢相关的功能基因。胃黏膜菌群结构表现为聚类2的患者胃肠道症状更严重,既往内镜下曲张静脉的治疗率显著高于其他组。我们的研究结果表明,在肝硬化中,幽门螺杆菌和非幽门螺杆菌的定植都受到影响。虽然幽门螺杆菌阴性的胃黏膜微生物结构表现出相当大的异质性,但特定的胃微生物群与临床特征之间仍然存在相关性。既往内镜下静脉曲张治疗会引起胃黏膜菌群结构明显改变,从而加重幽门螺杆菌阴性肝硬化患者的胃肠道症状。
《医学前沿(英文)》 2022年 第16卷 第5期 页码 714-722 doi: 10.1007/s11684-021-0888-8
关键词: metabolic dysfunction-associated fatty liver disease non-alcoholic fatty liver disease fibrosis score brachial-ankle pulse wave velocity albuminuria
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《医学前沿(英文)》 2011年 第5卷 第1期 页码 101-105 doi: 10.1007/s11684-011-0111-4
It has been demonstrated that β-elemene could protect against carbon tetrachloride (CCl4)-induced liver fibrosis in our laboratory work, and the aim of this paper is to reveal the protective mechanisms of β-elemene. The hepatic fibrosis experimental model was induced by the hypodermical injection of CCl4 in Wistar male rats. β-elemene was intraperitoneally administered into rats for 8 weeks (0.1 mL/100 g bodyweight per day), and plasma endotoxin content was assayed by biochemistry. The serum TNF-α level was detected using radioactive immunity. CD14 expression in rat livers was measured by immunohistochemistry and Western blot. The results showed that β-elemene can downregulate the levels of plasma endotoxins, serum TNF-α, and hepatic CD14 expression in rats with liver fibrosis. β-elemene plays an important role in downregulating the lipopolysaccharide signal transduction pathway, a significant pathway in hepatic fibrosis development.
吴理茂,李连达,刘红,宁可永,李贻奎
《中国工程科学》 2004年 第6卷 第7期 页码 34-42
研究中药归元方与自体骨髓干细胞移植对急慢性肝损伤的治疗作用。研究方法:用肝脏局部注射乙醇的方法复制急性局限性肝损伤模型,复合因素(CCl4、乙醇、高脂、低蛋白)刺激复制大鼠肝纤维化模型,通过定量组织学、肝功能检查、免疫组化、肝组织羟脯氨酸含量、损伤或纤维区骨髓干细胞观察等综合评价中药、自体骨髓干细胞移植及两者合用的疗效。结果:归元方与自体骨髓干细胞移植可减小肝损伤区域,改善肝功能,使纤维肝组织表达μPA增强,降低血清ALT,AST,PCⅢ,HA和肝组织羟脯氨酸的含量,改善肝组织肝纤维化评分,骨髓干细胞能在肝损伤、肝纤维化形成环境中存活、增殖,并向肝细胞分化,表达肝脏特异的角蛋白CK18。结论:归元方与自体骨髓干细胞移植对急慢性肝损伤有明确的治疗作用,两者合用可优势互补,协同增效。临床上有良好的应用前景。
Ling YANG, Rui ZHU, Qingjing ZHU, Dan DAN, Jin YE, Keshu XU, Xiaohua HOU
《医学前沿(英文)》 2009年 第3卷 第1期 页码 36-40 doi: 10.1007/s11684-009-0020-y
关键词: liver cirrhosis beta-elemene hepatic stellate cells angiotensin II receptor angiotensin type 1
Strategies for preventing peritoneal fibrosis in peritoneal dialysis patients: new insights based on
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《医学前沿(英文)》 2017年 第11卷 第3期 页码 349-358 doi: 10.1007/s11684-017-0571-2
Peritoneal dialysis (PD) is an established form of renal replacement therapy. Long-term PD leads to morphologic and functional changes to the peritoneal membrane (PM), which is defined as peritoneal fibrosis, a known cause of loss of peritoneal ultrafiltration capacity. Inflammation and angiogenesis are key events during the pathogenesis of peritoneal fibrosis. This review discusses the pathophysiology of peritoneal fibrosis and recent research progress on key fibrogenic molecular mechanisms in peritoneal inflammation and angiogenesis, including Toll-like receptor ligand-mediated, NOD-like receptor protein 3/interleukin-1β, vascular endothelial growth factor, and angiopoietin-2/Tie2 signaling pathways. Furthermore, novel strategies targeting peritoneal inflammation and angiogenesis to preserve the PM are discussed in depth.
关键词: peritoneal dialysis peritoneal fibrosis inflammation angiogenesis
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《医学前沿(英文)》 2014年 第8卷 第4期 页码 445-455 doi: 10.1007/s11684-014-0378-3
Recent evidences suggested that cyclic guanosine monophosphate-specific phosphodiesterase 5 (PDE5) inhibitor represents an important therapeutic target for cardiovascular diseases. Whether and how it ameliorates cardiac fibrosis, a major cause of diastolic dysfunction and heart failure, is unknown. The purpose of this study was to investigate the effects of PDE5 inhibitor on cardiac fibrosis. We assessed cardiac fibrosis and pathology in mice subjected to transverse aortic constriction (TAC). Oral sildenafil, a PDE5 inhibitor, was administered in the therapy group. In control mice, 4 weeks of TAC induced significant cardiac dysfunction, cardiac fibrosis, and cardiac fibroblast activation (proliferation and transformation to myofibroblasts). Sildenafil treatment markedly prevented TAC-induced cardiac dysfunction, cardiac fibrosis and cardiac fibroblast activation but did not block TAC-induced transforming growth factor-β1 (TGF-β1) production and phosphorylation of Smad2/3. In isolated cardiac fibroblasts, sildenafil blocked TGF-β1-induced cardiac fibroblast transformation, proliferation and collagen synthesis. Furthermore, we found that sildenafil induced phosphorylated cAMP response element binding protein (CREB) and reduced CREB-binding protein 1 (CBP1) recruitment to Smad transcriptional complexes. PDE5 inhibition prevents cardiac fibrosis by reducing CBP1 recruitment to Smad transcriptional complexes through CREB activation in cardiac fibroblasts.
关键词: PDE5 cardiac fibrosis TGF-β CREB
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《医学前沿(英文)》 2011年 第5卷 第1期 页码 1-7 doi: 10.1007/s11684-010-0105-7
Partial liver transplantation, including reduced-size liver transplantation, split liver transplantation, and living donor liver transplantation, has been developed with several innovative techniques because of donor shortage. Reduced-size liver transplantation is based on Couinaud’s anatomical classification, benefiting children and small adult recipients but failing to relieve the overall donor shortage. Split liver transplantation provides chances to two or even more recipients when only one liver graft is available. The splitting technique must follow stricter anatomical and physiological criteria either ex situ or in situto ensure long-term quality. The first and most important issue involving living donor liver transplantation is donor safety. Before surgery, a series of donor evaluations—including anatomical, liver volume, and liver function evaluations—is indispensable, followed by ethnic agreement. At different recipient conditions, auxiliary liver transplantation and auxiliary partial orthotopic liver transplantation, which employ piggyback techniques, are good alternatives. Partial liver transplantation enriches the practice and knowledge of the transplant society.
关键词: partial liver transplantation reduced-size liver transplantation split liver transplantation living donor liver transplantation
Liru Qiu, Fengjie Yang, Yonghua He, Huiqing Yuan, Jianhua Zhou
《医学前沿(英文)》 2018年 第12卷 第5期 页码 550-558 doi: 10.1007/s11684-017-0567-y
Cystic fibrosis (CF) is a fatal autosomal-recessive disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene. CF is characterized by recurrent pulmonary infection with obstructive pulmonary disease. CF is common in the Caucasian population but is rare in the Chinese population. The symptoms of early-stage CF are often untypical and may sometimes manifest as Bartter syndrome (BS)-like hypokalemic alkalosis. Therefore, the ability of doctors to differentiate CF from BS-like hypokalemic alkalosis in Chinese infants is a great challenge in the timely and accurate diagnosis of CF. In China, sporadic CF has not been diagnosed in children younger than three years of age to date. Three infants, who were initially admitted to our hospital over the period of June 2013 to September 2014 with BS-like hypokalemic alkalosis, were diagnosed with CF through exome sequencing and sweat chloride measurement. The compound heterozygous mutations of the CFTR gene were detected in two infants, and a homozygous missense mutation was found in one infant. Among the six identified mutations, two are novel point mutations (c.1526G>C and c.3062C>T) that are possibly pathogenic. The three infants are the youngest Chinese patients to have been diagnosed with sporadic CF at a very early stage. Follow-up examination showed that all of the cases remained symptom-free after early intervention, indicating the potential benefit of very early diagnosis and timely intervention in children with CF. Our results demonstrate the necessity of distinguishing CF from BS in Chinese infants with hypokalemic alkalosis and the significant diagnostic value of powerful exome sequencing for rare genetic diseases. Furthermore, our findings expand the CFTR mutation spectrum associated with CF.
关键词: cystic fibrosis pseudo-Bartter syndrome hypokalemic alkalosis CFTR gene mutations infants diagnosis
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《医学前沿(英文)》 2013年 第7卷 第2期 页码 255-263 doi: 10.1007/s11684-012-0227-1
The efficacy of ursodeoxycholic acid (UDCA) on long-term outcome of primary biliary cirrhosis (PBC) has been less documented in Chinese cohort. We aimed to assess the therapeutic effect of UDCA on Chinese patients with PBC. In the present study, 67 patients with PBC were treated with UDCA (13–15 mg?kg-1?day-1) and followed up for 2 years to evaluate the changes of symptoms, laboratory values and histological features. As the results indicated, fatigue and pruritus were obviously improved by UDCA, particularly in patients with mild or moderate symptoms. The alkaline phosphatase and γ-glutamyl transpetidase levels significantly declined at year 2 comparing to baseline values, with the most profound effects achieved in patients at stage 2. The levels of alanine aminotransferase and aspartate aminotransferase significantly decreased whereas serum bilirubin and immunoglobulin M levels exhibited no significant change. Histological feature was stable in patients at stages 1–2 but still progressed in patients at stages 3–4. The biochemical response of patients at stage 2 was much better than that of patients at stages 3–4. These data suggest that, when treated in earlier stage, patients in long-term administration of UDCA can gain favorable results not only on symptoms and biochemical responses but also on histology. It is also indicated that later histological stage, bad biochemical response and severe symptom may be indicators of poor prognosis for UDCA therapy.
关键词: primary biliary cirrhosis ursodeoxycholic acid Chinese biochemical response therapeutic efficacy
标题 作者 时间 类型 操作
Correlation between viral load and liver cirrhosis in chronic hepatitis B patients
Lili LIU MM , Jiyao WANG MD , Weimin SHE MM ,
期刊论文
Expression of integrin in hepatic fibrosis and intervention of resveratrol
Jianye WU, Chuanyong GUO, Jun LIU, Xuanfu XUAN
期刊论文
New definition of metabolic dysfunction-associated fatty liver disease with elevated brachial-ankle pulse
期刊论文
beta-elemene on the levels of plasma endotoxin, serum TNF-alpha, and hepatic CD14 expression in rats with liverfibrosis
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期刊论文
Influence of β-elemene on the secretion of angiotensin II and expression of AT1R in hepatic stellate cells
Ling YANG, Rui ZHU, Qingjing ZHU, Dan DAN, Jin YE, Keshu XU, Xiaohua HOU
期刊论文
Strategies for preventing peritoneal fibrosis in peritoneal dialysis patients: new insights based on
null
期刊论文
Chronic inhibition of cyclic guanosine monophosphate-specific phosphodiesterase 5 prevented cardiac fibrosis
null
期刊论文
Clinical characterization and diagnosis of cystic fibrosis through exome sequencing in Chinese infants
Liru Qiu, Fengjie Yang, Yonghua He, Huiqing Yuan, Jianhua Zhou
期刊论文