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1118篇 您的检索式:作者名="Mach"
    题名 作者 年代 出处 被引量
1Role of cytokines and chemokines in non-alcoholic fatty liver disease显示文摘Non-alcoholic fatty liver disease (NAFLD) includes a variety of histological conditions (ranging from liver steatosis and steatohepatitis, to fibrosis and hepatocarcinoma) that are characterized by an increased fat content within the liver. The accumulation/deposition of fat within the liver is essential for diagnosis of NAFLD and might be associated with alterations in the hepatic and systemic inflammatory state. Although it is still unclear if each histological entity represents a different disease or rather steps of the same disease, inflammatory processes in NAFLD might influence its pathophysiology and prognosis. In particular, non-alcoholic steatohepatitis (the most inflamed condition in NAFLDs, which more frequently evolves towards chronic and serious liver diseases) is characterized by a marked activation of inflammatory cells and the upregulation of several soluble inflammatory mediators. Among several mediators, cytokines and chemokines might play a pivotal active role in NAFLD and are considered as potential therapeutic targets. In this review, we will update evidence from both basic research and clinical studies on the potential role of cytokines and chemokines in the pathophysiology of NAFLD.Vincent Braunersreuther Giorgio Luciano Viviani Franois Mach Fabrizio Montecucco 2012World Journal of Gastroenterology2012,18,8:40
2Diet and nutritional factors in inflammatory bowel diseases显示文摘Inflammatory bowel disease(IBD) development is affected by complex interactions between environmental factors, changes in intestinal flora, various predisposing genetic properties and changes in the immune system. Dietary factors seem to play an underestimated role in the etiopathogenesis and course of the disease. However, research about food and IBD is conflicting. An excessive consumption of sugar, animal fat and linoleic acid is considered a risk factor for IBD development, whereas a high fiber diet and citrus fruit consumption may play a protective role. Also, appropriate nutrition in particular periods of the disease may facilitate achieving or prolonging remissions and most of all, improve the quality of life for patients. During disease exacerbation, a low fiber diet is recommended for most patients. In the remission time, an excessive consumption of alcohol and sulfur products may have a negative effect on the disease course. Attempts are also made at employing diets composed in detail in order to supplement IBD therapy. A diet with a modified carbohydrate composition, a semi-vegetarian diet and a diet low in fermentable oligosaccharides, disaccharides, monosaccharides and polyols are under investigation. Due to chronic inflammation as well as side effects of chronically used medications, patients with IBD are also at increased risk of nutritional factor deficiencies, including iron, calcium, vitamin D, vitamin B12, folic acid, zinc, magnesium and vitamin A. It should also be remembered that there is no single common diet suitable for all IBD patients; each of them is unique and dietary recommendations must be individually developed for each patient, depending on the course of the disease, past surgical procedures and type of pharmacotherapy.Danuta Owczarek Tomasz Rodacki Renata Domagała-Rodacka Dorota Cibor Tomasz Mach 2016World Journal of Gastroenterology2016,22,3:19
3Endurance exercise and gut microbiota:A review显示文摘Background: The physiological and biochemical demands of intense exercise elicit both muscle-based and systemic responses. The main adaptations to endurance exercise include the correction of electrolyte imbalance, a decrease in glycogen storage and the increase of oxidative stress, intestinal permeability, muscle damage, and systemic inflammatory response. Adaptations to exercise might be influenced by the gut microbiota, which plays an important role in the production, storage, and expenditure of energy obtained from the diet as well as in inflammation,redox reactions, and hydration status.Methods: A systematic and comprehensive search of electronic databases, including MEDLINE, Scopus, Clinical Trials.gov, Science Direct,Springer Link, and EMBASE was done. The search process was completed using the keywords: 'endurance', 'exercise', 'immune response','microbiota', 'nutrition', and 'probiotics'.Results: Reviewed literature supports the hypothesis that intestinal microbiota might be able to provide a measureable, effective marker of an athlete's immune function and that microbial composition analysis might also be sensitive enough to detect exercise-induced stress and metabolic disorders. The review also supports the hypothesis that modifying the microbiota through the use of probiotics could be an important therapeutic tool to improve athletes' overall general health, performance, and energy availability while controlling inflammation and redox levels.Conclusion: The present review provides a comprehensive overview of how gut microbiota may have a key role in controlling the oxidative stress and inflammatory responses as well as improving metabolism and energy expenditure during intense exercise.Núria Mach Dolors Fuster-Botella 2017Journal of Sport and Health Science2017,6,2:18
4Potential pathophysiological role for the vitamin D deficiency in essential hypertension显示文摘Vitamin D deficiency has been indicated as a pandemicemerging public health problem. In addition to the well-known role on calcium-phosphorus homeostasis in thebone, vitamin D-mediated processes have been recentlyinvestigated on other diseases, such as infections, can-cer and cardiovascular diseases. Recently, both the dis-covery of paracrine actions of vitamin D(recognized as'local vitamin D system') and the link of vitamin D with renin-angiotensin-aldosterone system and the fibroblast growth factor 23/klotho pathways highlighted its ac-tive cardiovascular activity. Focusing on hypertension, this review summarizes the more recent experimental evidence involving the vitamin D system and deficiency in the cardiovascular pathophysiology. In particular, we updated the vascular synthesis/catabolism of vitamin D and its complex interactions between the various endocrine networks involved in the regulation of blood pressure in humans. On the other hand, the conflicting results emerged from the comparison between obser-vational and interventional studies emphasize the frag-mentary nature of our knowledge in the field of vitamin D and hypertension, strongly suggesting the need of further researches in this field.Federico Carbone Fran?ois Mach Nicolas Vuilleumier Fabrizio Montecucco 2014World Journal of Cardiology2014,6,5:17
5Inflammatory bowel disease:Epidemiology,pathology and risk factors for hypercoagulability显示文摘Hypercoagulability observed in patients with inflammatory bowel diseases(IBD)may lead to thromboembolic events(TE),which affect the venous and arterial systems alike and are an important factor in patients’morbidity and mortality.The risk of TE in IBD patients has been demonstrated to be approximately threefold higher as compared to the general population.The pathogenesis of thrombosis in IBD patients is multifactorial and not fully explained.The most commonly listed factors include genetic and immune abnormalities,disequilibrium between procoagulant and anticoagulant factors,although recently,the role of endothelial damage as an IBD-triggering factor is underlined.Several studies report that the levels of some coagulation enzymes,including fibrinogen,factorsⅤ,Ⅶ,Ⅷ,active factorⅪ,tissue factor,prothrombin fragment 1+2and the thrombin-antithrombin complex,are altered in IBD patients.It has been demonstrated that there is a significant decrease of tissue plasminogen activator level,a marked increase of plasminogen activator inhibitor type 1 and thrombin-activable fibrinolysis inhibitor,a significantly lower level of antithrombinⅢand tissue factor pathway inhibitor.IBD patients have been also observed to produce an increased amount of various anticoagulant antibodies.Hyperhomocysteinemia,which is a potential risk factor for TE was also observed in some IBD patients.Further studies are necessary to assess the role of coagulation abnormalities in IBD etiology and to determine indications for thromboprophylactic treatment in patients at high risk of developing TE.Danuta Owczarek Dorota Cibor Mikolaj K Glowacki Tomasz Rodacki Tomasz Mach 2014World Journal of Gastroenterology2014,20,1:16
6Endothelial dysfunction in inflammatory bowel diseases:Pathogenesis,assessment and implications显示文摘Endothelial dysfunction is considered one of the etiological factors of inflammatory bowel disease(IBD). An inflammatory process leads to functional and structural changes in the vascular endothelium. An increase of leukocyte adhesiveness and leukocyte diapedesis, as well as an increased vascular smooth muscle tone and procoagulant activity is observed. Structural changes of the vascular endothelium comprise as well capillary and venule remodeling and proliferation of endothelial cells. Hypoxia in the inflammatory area stimulates angiogenesis by upregulation of vascular endothelial growth factor, fibroblast growth factor and tumor necrosis factor-α. Inflammatory mediators also alter the lymphatic vessel function and impair lymph flow, exacerbating tissue edema and accumulation of dead cells and bacteria. The endothelial dysfunction might be diagnosed by the use of two main methods: physical and biochemical. Physical methods are based on the assessment of large arteries vasodilatation in response to an increased flow and receptors stimulation. Flowmediated vasodilatation(FMD) is the method that is the most widely used; however, it is less sensitive in detecting early changes of the endothelium function. Most of the studies demonstrated a decrease of FMD in IBD patients but no changes in the carotic intima-media thickness. Biochemical methods of detecting the endothelial dysfunction are based on the assessment of the synthesis of compounds produced both by the normal and damaged endothelium. The endothelial dysfunction is considered an initial step in the pathogenesis of atherosclerosis in the general population. In IBD patients, the risk of cardiovascular diseases is controversial. Large, prospective studies are needed to establish the role of particular medications or dietary elements in the endothelial dysfunction as well to determine the real risk of cardiovascular diseases.Dorota Cibor Renata Domagala-Rodacka Tomasz Rodacki Artur Jurczyszyn Tomasz Mach Danuta Owczarek 2016World Journal of Gastroenterology2016,22,3:10
7Matrix metalloproteinase-9:A deleterious link between hepatic ischemia-reperfusion and colorectal cancer显示文摘Despite the advent of improved surgical techniques and the development of cytotoxic chemotherapeutic agents useful for the treatment of colorectal cancer,the primary clinical challenge remains that of preventing and combating metastatic spread.Surgical resection is the best treatment for colorectal metastases isolated to the liver.However,in rodent models,the hepatic ischemia-reperfusion(I/R) applied during the surgery accelerates the outgrowth of implanted tumors.Among the adverse effects of I/R on cellular function,several studies have demonstrated an over expression of the matrix metalloproteinase-9(MMP-9) in the ischemic liver.Since several studies showed high local levels of expression and activity of this proteolytic enzyme in the primary colorectal adenocarcinoma,the role of MMP-9 might be considered as a potential common mediator,favoring both growth of local tumor and the dissemination of colorectal carcinoma metastases.Sébastien Lenglet Franois Mach Fabrizio Montecucco 2012World Journal of Gastroenterology2012,18,48:6
8IL28B polymorphism as a predictor of antiviral response in chronic hepatitis C显示文摘AIM:To evaluate the effect of single nucleotide polymorphisms of interleukin(IL)-28B,rs12979860 on progression and treatment response in chronic hepatitis C.METHODS:Patients(n = 64;37 men,27 women;mean age,44 ± 12 years) with chronic hepatitis C,genotype 1,received treatment with peg-interferon plus ribavirin.Genotyping of rs12979860 was performed on peripheral blood DNA.Histopathological assessment of necroinflammatory grade and fibrosis stage were scored using the METAVIR system on a liver biopsy sample before treatment.Serum viral load,aminotransferase activity,and insulin level were measured.Insulin resistance index,body mass index,waist/hip ratio,percentage of body fat and fibrosis progression rate were calculated.Applied dose of interferon and ribavirin,platelet and neutrophil count and hemoglobin level were measured.RESULTS:A sustained virological response(SVR) was significantly associated with IL28B polymorphism(CC vs TT allele:odds ratio(OR),25;CC vs CT allele:OR,5.4),inflammation activity(G < 1 vs G > 1:OR,3.9),fibrosis(F < 1 vs F > 1:OR,5.9),platelet count(> 200 × 10 9 /L vs < 200 × 10 9 /L:OR,4.7;OR in patients with genotype CT:12.8),fatty liver(absence vs presence of steatosis:OR,4.8),insulin resistance index(< 2.5 vs > 2.5:OR,3.9),and baseline HCV viral load(< 10 6 IU/mL vs > 10 6 IU/mL:OR,3.0).There was no association with age,sex,aminotransferases activity,body mass index,waist/hip ratio,or percentage body fat.There was borderline significance(P = 0.064) of increased fibrosis in patients with the TT allele,and no differences in the insulin resistance index between groups of patients with CC,CT and TT alleles(P = 0.12).Spearman's rank correlation coefficient between insulin resistance and stage of fibrosis and body mass index was r = 0.618 and r = 0.605,respectively(P < 0.001).Significant differences were found in the insulin resistance index(P = 0.01) between patients with and without steatosis.Patients with the CT allele and absence of a SVR had a higher incidence of requiring threshold dose reduction of interferon(P = 0.07).CONCLUSION:IL28B variation is the strongest host factor not related to insulin resistance that determines outcome of antiviral therapy.Baseline platelet count predicts the outcome of antiviral therapy in CT allele patients.Andrzej Ciela Monika Bociaga-Jasik Iwona Sobczyk-Krupiarz Mikolaj K Glowacki Danuta Owczarek Dorota Cibor Marek Sanak Tomasz Mach 2012World Journal of Gastroenterology2012,18,35:4
9Silver nanowires with semiconducting ligands for low- temperature transparent conductors显示文摘金属 nanowire 网络在很低的免职温度与高传播和低表抵抗价值为透明电极的快速的制造代表一个有希望的候选人。在传导性的 nanowire 电极的形成的通常遇到的挑战正在建立在 nanowires 之间的高质量的电子接触通过网络便于远程的当前的运输。与一个半导体的大音阶的第五音胶化锡氧化物矩阵包含 nanowire ligand 移动和代替的一个新系统与对免职以后的处理的最小的需要在戏剧性地减少的温度启用了高效的透明电极的制造。Brion Bob Ariella Machness Tze-Bin Song Huanping Zhou Choong-Heui Chung Yang Yang 2016Nano Research2016,9,2:3
10Levels and activities of von Willebrand factor and metalloproteinase with thrombospondin type-1 motif, number 13 in inflammatory bowel diseases显示文摘AIM To evaluate the levels of von Willebrand factor(VWF) and metalloproteinase with thrombospondin type-1 motif, number 13(ADAMTS13) in inflammatory bowel disease(IBD) and correlate them with the disease activity.METHODS Consecutive patients with IBD aged 18 years or older were enrolled in the study. Forty-seven patients with ulcerative colitis(UC), 38 with Crohn's disease(CD), and 50 healthy controls were included. The white blood cell count, haematocrit, platelet count, fibrinogen, partial activated thromboplastin time, C-reactive protein, albumin, VWF antigen level(VWF:Ag), VWF ristocetin cofactor activity(VWF:RCo), VWF collagen-binding activity(VWF:CB), and ADAMTS13 antigen level(ADAMTS13:Ag) and activity(ADAMTS13act) were measured. The following ratios were assessed: V W F : R C o/V W F : A g, V W F : C B/V W F : A g, V W F : A g/ADAMTS13 act, and ADAMTS13act/ADAMTS13:Ag. RESULTS Compared to controls, the odds ratio(OR) of an elevated VWF: Ag > 150% was 8.7(95%CI: 2.7-28.1) in the UC group and 16.2(95%CI: 4.8-54.0) in the CD group. VWF:CB was lower in UC patients, and active CD was associated with a higher VWF: RCo(+38%). The ORs of VWF:CB/VWF:Ag < 0.7(a marker of acquired von Willebrand syndrome) in the UC and CD groups were 11.9(95%CI: 4.4-32.4) and 13.3(95%CI: 4.6-38.1), respectively. Active UC was associated with lower ADAMTS13:Ag(-23%) and ADAMTS13act(-20%) compared to UC in remission. Patients with active CD had a 15% lower ADAMTS13 act than controls. The activity of UC, but not that of CD, was inversely correlated with ADAMTS13:Ag(r =-0.76) and ADAMTS13act(r =-0.81). CONCLUSION Complex VWF-ADAMTS13-mediated mechanisms disturb haemostasis in IBD. A reduced WVF:CB is a risk factor for bleeding, while a lower ADAMTS13 level combined with an elevated VWF:Ag could predispose one to thrombosis.Dorota Cibor Danuta Owczarek Saulius Butenas Kinga Salapa Tomasz Mach Anetta Undas 2017World Journal of Gastroenterology2017,23,26:3
11Left atrial thrombosis in an anticoagulated patient after bioprosthetic valve replacement:Report of a case显示文摘We present the case of a 74 year old woman suffering from severe mitral valve incompetence and rapid atrial fibrillation. After an appropriate vitamin K antagonist(VKA) therapy, the patient underwent mitral valve replacement by bioprosthesis. Then, the patient was rehospitalized for jaundice. Suspecting hepatotoxicity, VKA was discontinued and fondaparinux was started. During this treatment, the patient developed a symptomatic atrial thrombus. After exclusion of a hepatic disease, VKA was re-established with hemodynamic and liver enzymes normalization and atrial thrombus resolution. Caution has to be used when considering fondaparinux as an alternative strategy to VKA in patients with multiple thrombotic risk factors.Gian Marco Rosa Antonello Parodi Ulrico Dorighi Federico Carbone Franois Mach Alessandra Quercioli Fabrizio Montecucco Nicolas Vuilleumier Manrico Balbi Claudio Brunelli 2014World Journal of Clinical Cases2014,2,1:2
12Soluble CD40 ligand in prediction of acute severe pancreatitis显示文摘瞄准:在胰腺炎严厉估计可溶的 CD40L (sCD40L ) 的早可预测性。方法:在 2000 年 2 月和 2003 年 2 月之间,有尖锐胰腺炎的 279 个连续病人有希望地在我们的学习被注册。在这份报告, 40 个病人与温和并且有严重胰腺炎的 40 个病人随机被学习。sCD40L 集中被测量在承认以后的 48 个小时。结果:sCD40L 层次显著地更高在在严重胰腺炎的承认以后的 48 个小时比在温和胰腺炎。用 1000 的截止,检测疾病的一堂严重功课的 sCD40L 的 pg/L,敏感和特性为 CRP 与 72% 和 81% 相比分别地是 78% 和 62% 。发现那 CRP 的逻辑回归分析统计上是唯一的能检测疾病的一堂严重功课的重要标记。结论:这些调查结果显示 CRP 仍然是一个珍贵标记而 sCD40L 层次应该在进一步的研究被估计,决定尖锐胰腺炎的严厉和预后。Jean Louis Frossard Philippe Morel Brenda Kwak Catherine Pastor Thierry Berney Léo Buhler Alain Von Laufen Sandrine Demulder Francois Mach 2006World Journal of Gastroenterology2006,12,10:2
13Genetic improvement of Trichoderma ability to induce systemic resistance显示文摘The beneficial applications of Trichoderma spp. in agriculture include not only the control of plant pathogens, but also the improvement of plant growth, micronutrient availability, and plant tolerance to abiotic stress. In addition, it has been suggested that these fungi are able to increase plant disease resistance by activating induced systemic resistance (ISR) . The mode of action of these beneficial fungi in the Trichoderma -plant-pathogen interaction are many, complex and not completely understood. Numerous lytic enzymes have been characterized, the encoding genes (ech42 gluc78, nag1 from T. atroviride strain P1) cloned, and their role in biocontrol demonstrated. The corresponding biocontrol-related inducible promoters have been used in a reporter system based on the Aspergillus niger glucose oxidase gene (goxA) to monitor biocontrol activity. Glucose oxidase catalyzes the oxygen-dependent oxidation of D-glucose to D-glucono-1,5-lactone and hydrogen peroxide; this latter compound is known to have an antifungal effect and activate the plant defence cascade, thus increasing resistance to pathogen attack. T. atroviride P1 transformants with various promoters gox were tested as seed coating treatments on bean seeds planted in soil infested with a soilborne fungal pathogen. Successively, the emergent leaves were inoculated with a foliar pathogen to determine the effect of the GOX transformants on biocontrol and resistance to pathogen attack. Inoculations with the P1-GOX transformants not only reduced disease symptoms caused by a soil pathogen, but also the lesions of various foliar pathogens applied far from the Trichoderma colonization, thus activating ISR. A similar approach is being use to genetically improve T. harzianum T22, a rhizosphere competent and commercially marketed strain not transformed yet, by using four different gox gene constructs under the control of constitutive and inducible promoters. Plasmids have been introduced in Trichoderma by protoplasts co-transformation. hygromicin resistant progeny selected, and mitotically stable transformants analysed to confirm the presence of the novel enzyme activity. Progenies are being tested for biocontrol ISR inducing activity.Ciliento R Woo S L Di Benedetto P Ruocco M Scala F Soriente I Ferraioli S Brunner K Zeilinger S Mach R L Lorito M 2004浙江大学学报(农业与生命科学版)2004,30,4:2
14Statin Treatment Is Associated with Reduction in Serum Levels of Receptor Activator of NF- κ B Ligand and Neutrophil Activation in Patients with Severe Carotid Stenosis显示文摘Sébastien Lenglet Alessandra Quercioli Mathias Fabre Katia Galan Graziano Pelli Alessio Nencioni Inga Bauer Aldo Pende Magaly Python Maria Bertolotto Giovanni Spinella Bianca Pane Domenico Palombo Franco Dallegri Fran?ois Mach Nicolas Vuilleumier Fabrizio 2014Mediators of Inflammation2014,,:2
15Intrahepatic expression of genes related to metabotropic receptors in chronic hepatitis显示文摘AIM:To screen for genes related to metabotropic receptors that might be involved in the development of chronic hepatitis.METHODS:Assessment of 20 genes associated with metabotropic receptors was performed in liver specimens obtained by punch biopsy from 12 patients with autoimmune and chronic hepatitis type B and C.For this purpose,a microarray with low integrity grade and with oligonucleotide DNA probes complementary to target transcripts was used.Evaluation of gene expression was performed in relation to transcript level,correlation between samples and grouping of clinical parameters used in chronic hepatitis assessment.Clinical markers of chronic hepatitis included alanine and aspartate aminotransferase,-glutamyltranspeptidase,alkaline phosphatase and cholinesterase activity,levels of iron ions,total cholesterol,triglycerides,albumin,glucose,hemoglobin,platelets,histological analysis of inflammatory and necrotic status,fibrosis according to METAVIR score,steatosis,as well as anthropometric body mass index,waist/hip index,percentage of adipose tissue and liver size in ultrasound examination.Gender,age,concomitant diseases and drugs were also taken into account.Validation of oligonucleotide microarray gene expression results was done with the use of quantitative real-time polymerase chain reaction(qRT-PCR).RESULTS:The highest(0.002 < P < 0.046) expression among genes encoding main components of metabotropic receptor pathways,such as the α subunit of G-coupled protein,phosphoinositol-dependent protein kinase or arrestin was comparable to that of angiotensinogen synthesized in the liver.Carcinogenesis suppressor genes,such as chemokine ligand 4,transcription factor early growth response protein 1 and lysophosphatidic acid receptor,were characterized by the lowest expression(0.002 < P < 0.046),while the factor potentially triggering hepatic cancer,transcription factor JUN-B,had a 20-fold higher expression.The correlation between expression of genes of protein kinases PDPK1,phosphoinositide 3-kinase and protein kinase A(Spearman's coefficient range:0.762-0.769) confirmed a functional link between these enzymes.Gender(P = 0.0046) and inflammation severity,measured by alanine aminotransferase activity(P = 0.035),were characterized by diverse metabotropic receptor gene expression patterns.The Pearson's coefficient ranging from-0.35 to 0.99 from the results of qRT-PCR and microarray indicated that qRT-PCR had certain limitations as a validation tool for oligonucleotide microarray studies.CONCLUSION:A microarray-based analysis of hepatocyte metabotropic G-protein-related gene expression can reveal the molecular basis of chronic hepatitis.Andrzej Ciesla Maciej Kusmider Agata Faron-Górecka Marta Dziedzicka-Wasylewska Monika Bocisga-Jasik Danuta Owczarek Irena Cieko-Michalska Dorota Cibor Tomasz Mach 2012World Journal of Gastroenterology2012,18,31:2
16CIOMS and ICH Initiatives in Pharmacovigilance and Risk Management显示文摘Tsintis P La Mache E 2004Drug Safety2004,27,8:1
17Role of four major cellulases in triggering of cellulase gene expression by cellulose in Trichoderma reesei 显示文摘Seiboth B Hakola S Mach R L 1997J Bacteriol1997,179,17:1
18T lymphocytes induce endothelial cell matrix metalloproteinase expression by a CD40L-dependent mechanism:implications for tubule formation显示文摘Mach F Schonbeck U Fabunmi R P 1999Am J Pathol1999,154,1:1
19CCR9 is a homing receptor for plasmacytoid dendritic cells to the small intestine显示文摘Wendland M Czeloth N Mach N 2007Proc Natl Acad Sci USA2007,104,15:1
20Role of the vascular endothelium in patients with angina pectoris or acute myocardial infarction with normal coronary arteries显示文摘Sztajzel J Mach F Righetti A 2000Postgrad Med J2000,76,891:1
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