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| 1 | New advances in hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC)is the leading cause of deaths in cirrhotic patients and the third cause of cancer related deaths.Most HCC are associated withwell known underlying risk factors,in fact,HCC arise in cirrhotic patients in up to 90%of cases,mainly due to chronic viral hepatitis and alcohol abuse.The worldwide prevention strategies are conducted to avoid the infection of new subjects and to minimize the risk of liver disease progression in infected patients.HCC is a condition which lends itself to surveillance as at-risk individuals can readily be identified.The American and European guidelines recommended implementation of surveillance programs with ultrasound every six months in patient atrisk for developing HCC.The diagnosis of HCC can be based on non-invasive criteria(only in cirrhotic patient)or pathology.Accurately staging patients is essential to oncology practice.The ideal tumour staging system in HCC needs to account for both tumour characteristics and liver function.Treatment allocation is based on several factors:Liver function,size and number of tumours,macrovascular invasion or extrahepatic spread.The recommendations in terms of selection for different treatment strategies must be based on evidence-based data.Resection,liver transplant and interventional radiology treatment are mainstays of HCC therapy and achieve the best outcomes in well-selected candidates.Chemoembolization is the most widely used treatment for unresectable HCC or progression after curative treatment.Finally,in patients with advanced HCC with preserved liver function,sorafenib is the only approved systemic drug that has demonstrated a survival benefit and is the standard of care in this group of patients. | Sonia Pascual Iván Herrera Javier Irurzun | 2016 | World Journal of Hepatology2016,8,9: | 51 |
| 2 | Acute-on-chronic liver failure:Pathogenesis,prognostic factors and management显示文摘Acute-on-chronic liver failure(ACLF) is increasingly recognized as a complex syndrome that is reversiblein many cases. It is characterized by an acute deterioration of liver function in the background of a pre-existing chronic liver disease often associated with a high short-term mortality rate. Organ failure(OF) is always associated, and plays a key role in determining the course, and the outcome of the disease. The definition of ACLF remains controversial due to its overall ambiguity, with several disparate criteria among various associations dedicated to the study of liver diseases. Although the precise pathogenesis needs to be clarified, it appears that an altered host response to injury might be a contributing factor caused by immune dysfunction, ultimately leading to a pro-inflammatory status, and eventually to OF. The PIRO concept(Predisposition, Insult, Response and Organ Failure) has been proposed to better approach the underlying mechanisms. It is accepted that ACLF is a different and specific form of liver failure, where a precipitating event is always involved, even though it cannot always be ascertained. According to several studies, infections and active alcoholism often trigger ACLF. Viral hepatitis, gastrointestinal haemorrhage, or drug induced liver injury, which can also provoke the syndrome. This review mainly focuses on the physiopathology and prognostic aspects. We believe these features are essential to further understanding and providing the rationale for improveddisease management strategies. | Sara Blasco-Algora José Masegosa-Ataz María Luisa Gutiérrez-García Sonia Alonso-López Conrado M Fernández-Rodríguez | 2015 | World Journal of Gastroenterology2015,21,42: | 45 |
| 3 | Use of bone morphogenetic proteins in mesenchymal stemcell stimulation of cartilage and bone repair显示文摘The extracellular matrix-associated bone morphogenetic proteins(BMPs) govern a plethora of biological processes. The BMPs are members of the transforming growth factor-β protein superfamily, and they actively participate to kidney development, digit and limb formation, angiogenesis, tissue fibrosis and tumor development. Since their discovery, they have attracted attention for their fascinating perspectives in the regenerative medicine and tissue engineering fields. BMPs have been employed in many preclinical and clinical studies exploring their chondrogenic or osteoinductive potential in several animal model defects and in human diseases. During years of research in particular two BMPs, BMP2 and BMP7 have gained the podium for their use in the treatment of various cartilage and bone defects. In particular they have been recently approved for employment in non-union fractures as adjunct therapies. On the other hand, thanks to their potentialities in biomedical applications, there is a growing interest in studying the biology of mesenchymal stem cell(MSC), the rules underneath their differentiation abilities, and to test their true abilities in tissue engineering. In fact, the specific differentiation of MSCs into targeted celltype lineages for transplantation is a primary goal of the regenerative medicine. This review provides an overview on the current knowledge of BMP roles and signaling in MSC biology and differentiation capacities. In particular the article focuses on the potential clinical use of BMPs and MSCs concomitantly, in cartilage and bone tissue repair. | Sonia Scarfì | 2016 | World Journal of Stem Cells2016,8,1: | 21 |
| 4 | Hepatocellular carcinoma in non-cirrhotic liver: A comprehensive review显示文摘Hepatocellular carcinoma(HCC) is the most common type of primary liver cancer, which in turns accounts for the sixth most common cancer worldwide.Despite being the 6 th most common cancer it is the second leading cause of cancer related deaths. HCC typically arises in the background of cirrhosis, however,about 20% of cases can develop in a non-cirrhotic liver. This particular subgroup of HCC generally presents at an advanced stage as surveillance is not performed in a non-cirrhotic liver. HCC in non-cirrhotic patients is clinically silent in its early stages because of lack of symptoms and surveillance imaging; and higher hepatic reserve in this population. Interestingly, F3 fibrosis in non-alcoholic fatty liver disease, hepatitis B virus and hepatitis C virus infections are associated with high risk of developing HCC. Even though considerable progress has been made in the management of this entity, there is a dire need for implementation of surveillance strategies in the patient population at risk, to decrease the disease burden at presentation and improve the prognosis of these patients. This comprehensive review details the epidemiology, risk factors, clinical features,diagnosis and management of HCC in non-cirrhotic patients and provides future directions for research. | Aakash Desai Sonia Sandhu Jin-Ping Lai Dalbir Singh Sandhu | 2019 | World Journal of Hepatology2019,11,1: | 19 |
| 5 | Infiltrative xanthogranulomatous cholecystitis mimicking aggressive gallbladder carcinoma: A diagnostic and therapeutic dilemma显示文摘Xanthogranulomatous cholecystitis(XGC) is an uncommon variant of chronic cholecystitis. The perioperative findings in aggressive cases may be indistinguishable from those of gallbladder or biliary tract carcinomas. Three patients presented mass lesions that infiltrated the hepatic hilum,provoked biliary dilatation and jaundice,and were indicative of malignancy. Surgical excision was performed following oncological principles and included extirpation of the gallbladder,extrahepatic bile duct,and hilar lymph nodes,as well as partial hepatectomy. Postoperative morbidity was minimal. Surgical pathology demonstrated XGC and absence of malignancy in all three cases. All three patients are alive and well after years of follow-up. XGC may have such an aggressive presentation that carcinoma may only be ruled out on surgical pathology. In such cases,the best option may be radical resection following oncological principles performed by expert surgeons,in order that postoperative complications may be minimized if not avoided altogether. | Lucas Souto Nacif Amelia Judith Hessheimer Sonia Rodríguez Gómez Carla Montironi Constantino Fondevila | 2017 | World Journal of Gastroenterology2017,23,48: | 13 |
| 6 | Genetic, metabolic and environmental factors involved in the development of liver cirrhosis in Mexico显示文摘Liver cirrhosis(LC) is a chronic illness caused by inflammatory responses and progressive fibrosis. Globally, the most common causes of chronic liver disease include persistent alcohol abuse, followed by viral hepatitis infections and nonalcoholic fatty liver disease. However, regardless of the etiological factors, the susceptibility and degree of liver damage may be influenced by genetic polymorphisms that are associated with distinct ethnic and cultural backgrounds. Consequently, metabolic genes are influenced by variable environmental lifestyle factors, such as diet, physical inactivity, and emotional stress, which are associated with regional differences among populations. This Topic Highlight will focus on the genetic and environmental factors that may influence the metabolism of alcohol and nutrients in the setting of distinct etiologies of liver disease. The interaction between genes and environment in the current-day admixed population, Mestizo and Native Mexican, will be described. Additionally, genes involved in immune regulation, insulin sensitivity, oxidative stress and extracellular matrix deposition may modulate the degree of severity. In conclusion, LC is a complex disease. The onset, progression, and clinical outcome of LC among the Mexican population are influenced by specific genetic and environmental factors. Among these are an admixed genome with a heterogenic distribution of European, Amerindian and African ancestry; a high score of alcohol consumption; viral infections; a hepatopathogenic diet; and a high prevalence of obesity. The variance in risk factors among populations suggests that intervention strategies directed towards the prevention and management of LC should be tailored according to such population-based features. | Omar Ramos-Lopez Erika Martinez-Lopez Sonia Roman Nora A Fierro Arturo Panduro | 2015 | World Journal of Gastroenterology2015,21,41: | 11 |
| 7 | 肝的 osteodystrophy : 为在长期的肝的考虑的一件重要的事疾病显示文摘 Hepatic osteodystrophy (HO) is the generic term defining the group of alterations in bone mineral metabolism found in patients with chronic liver disease. This paper is a global review of HO and its main pathophysiological, epidemiological and therapeutic aspects. Studies examining the most relevant information concerning the prevalence, etiological factors, diagnostic and therapeutic aspects involved in HO were identified by a systematic literature search of the PubMed database. HO generically defines overall alterations in bone mineral density (BMD) (osteoporosis or osteopenia) which appear as a possible complication of chronic liver disease. The origin of HO is multifactorial and its etiology and severity vary in accordance with the underlying liver disease. Its exact prevalence is unknown, but different studies estimate that it could affect from 20% to 50% of patients. The reported mean prevalence of osteoporosis ranges from 13%-60% in chronic cholestasis to 20% in chronic viral hepatitis and 55% in viral cirrhosis. Alcoholic liver disease is not always related to osteo-penia. HO has been commonly studied in chronic cholestatic disease (primary biliary cirrhosis and primary sclerosing cholangitis). Several risk factors and pathogenic mechanisms have been associated with the loss of BMD in patients with chronic liver disease. However, little information has been discovered in relationship to most of these mechanisms. Screening for osteopenia and osteoporosis is recommended in advanced chronic liver disease. There is a lack of randomized studies assessing specific management for HO. | Germán López-Larramona Alfredo J Lucendo Sonia González-Castillo José M Tenias | 2011 | World Journal of Hepatology2011,3,12: | 9 |
| 8 | Patients with irritable bowel syndrome-diarrhea have lower disease-specific quality of life than irritable bowel syndrome-constipation显示文摘AIM: To determine effect of irritable bowel syndrome(IBS) subtype on IBS-specific quality of life(QOL) questionnaire and its subscales.METHODS: We studied IBS patients visiting our functional gastroenterology disorder clinic at a tertiary care center of Unites States.IBS and IBS subtype were diagnosed using Rome-Ⅲ questionnaire.QOL was assessed using IBS-QOL questionnaire.IBSQOL assesses quality of life along eight subscales: dysphoria,interference with activities,body image,health worry,food avoidance,social reactions,sexual health,and effect on relationships.IBS-QOL and its subscales were both scored on a range of 0-100 with higher scores suggestive of better QOL.Results of overall IBS-QOL scores and subscale scores are expressed as means with 95%CI.We compared mean IBS-QOL score and its subscales among various IBSsubtypes.Analysis of variance(ANOVA) was used to compare the mean difference between more than two groups after controlling for age and gender.A posthoc analysis using Bonferroni correction was used only when P value for ANOVA was less than 0.05.RESULTS: Of 542 patients screened,243 had IBS as per Rome-Ⅲ criteria.IBS-mixed(IBS-M) was the most common IBS subtype(121 patients,49.8%) followed by IBS- diarrhea(IBS-D)(56 patients,23.1%),IBSconstipation(IBS-C)(54 patients,22.2%) and IBSunspecified(IBS-U)(12 patients,4.9%).Overall IBSQOL scores were significantly different among various IBS-subtypes(P = 0.01).IBS-QOL of patients with IBS-D(61.6,95%CI: 54.0-69.1) and IBS-M(63.0,95%CI: 58.1-68.0) was significantly lower than patients with IBS-C(74.5,95%CI: 66.9-82.1)(P = 0.03 and 0.02 respectively).IBS-D patients scored significantly lower than IBS-C on food avoidance(45.0,95%CI: 34.8-55.2 vs 61.1,95%CI: 50.8-71.3,P = 0.04) and interference with activity(59.6,95%CI: 51.4-67.7 vs 82.3,95%CI: 74.1-90.6,P < 0.001).IBS-M patients had more interference in their activities(61.6,95%CI: 56.3-66.9 vs 82.3,95%CI: 74.1-90.6,P = 0.001) and greater impact on their relationships(73.3,95%CI: 68.4-78.2 vs 84.7,95%CI: 77.2-92.2,P = 0.02) than IBS-C patients.Patients with IBS-M also scored significantly lower than IBS-C on food avoidance(47.2,95%CI: 40.7-53.7 vs 61.1,95%CI: 50.8-71.3,P = 0.04) and social reaction(66.1,95%CI: 61.1-71.1 vs 80.0,95%CI: 72.1-87.7,P = 0.005).CONCLUSION: IBS-D and IBS-M patients have lower IBS-QOL than IBS-C patients.Clinicians should recognize food avoidance,effects on daily activities and relationship problems in these patients. | Prashant Singh Kyle Staller Kenneth Barshop Elaine Dai Jennifer Newman Sonia Yoon Shahar Castel Braden Kuo | 2015 | World Journal of Gastroenterology2015,21,26: | 9 |
| 9 | Antidiabetic activity of methanolic bark extract of Alhizia odoratissima Benth.in alloxan induced diabetic albino mice显示文摘Objective:To evaluate the antidiabetic potential of methanolic extract of Albizia odoratissima Benth.bark in alloxan induced diabetic mice.Methods:Group-Ⅰ(normal control) mice received only basal diet without any treatment.In Group-Ⅱ(Diabetic control) mice,diabetes was induced by alloxan(150 mg/kg i.p.) and received only Tween 80.5%v/v in normal saline. Group-Ⅲand Group-Ⅳmice received metformin(10 mg/kg) and gliclazide(10 mg/kg) as standard drugs.Group-ⅤandⅥmice received methanolic bark extract of Albizia odoratissima at doses of 250 and 500 mg/kg body weight p.o.,respectively.Results:The results of the study indicates that Albizia odoratissima bark extract significantly(P<0.01) reduced the blood sugar level.The bark extract also significantly reduced the levels of serum cholesterol,triglycerides, serum glutamic-oxaloacetic transaminase,serum glutamic-pyruvic transaminase,alkaline phosphatase and decreases level of total proteins in alloxan induced diabetic mice.Conclusions: Methanolic extract of Albizia odoratissima has protective effects on the protection of vital tissues(pancreas,kidney,liver,heart and spleen),thereby reducing the causation of diabetes in experimental animals. | Dinesh Kumar Sunil Kumar Sonia Kohli Renu Arya Jyoti Gupta | 2011 | Asian Pacific Journal of Tropical Medicine2011,4,11: | 7 |
| 10 | Lymphoepitelioma-like hepatocellular carcinoma: A case report and a review of the literature显示文摘Lymphoepitelioma is a particular form of undifferentiat-ed carcinoma, characterized by a prominent lymphoid stroma, originally described in the nasopharynx. Lym-phoid stroma-rich carcinomas arising in other organs have been termed lymphoepithelioma-like carcinoma (LELC). In the liver, primary LELCs are very rare, and the majority has been identified as cholangiocarcino-mas. Here a rare case of lymphoepithelioma-like hepa-tocellular carcinoma (HCC) is described. A 47-year old woman presented with abdominal pain. Ultrasonogra-phy revealed a liver nodule, 2.2 cm in diameter, local-ized in the right lobe, adjacent to the gallbladder. Viral markers for hepatic B virus (HBV), hepatic C virus (HCV) and Epstein-Barr virus (EBV) were negative. The nod-ule was hypoechogenic. The patient underwent sur-gery, with resection of the nodule. Histology showed hepatocellular carcinoma, characterized by a promi-nent lymphoid infiltrate. At immunocytochemistry, tumor cells were reactive for Hep Par1 and glypican 3. Immunophenotyping of tumor infiltrating lymphocytes evidenced the predominance of CD8+ cytotoxic sup-pressor T cells. The postoperative clinical outcome was favorable and the patient was recurrence-free 15 mo after resection. This case, to the best of our knowl-edge, is the first reported non EBV and non cirrhosis-associated lymphoepithelioma-like hepatocellular carci-noma. The association between the lack of EBV infec-tion, the absence of cirrhosis, a 'cytotoxic profile' of the inflammatory infiltrate and a good prognosis could identify a variant of lymphoepithelioma-like HCC with a favorable clinical outcome. | Sonia Nemolato Daniela Fanni Antonio Giuseppe Naccarato Alberto Ravarino Generso Bevilacqua Gavino Faa | 2008 | World Journal of Gastroenterology2008,14,29: | 7 |
| 11 | Alcoholism and liver disease in Mexico:Genetic and environmental factors显示文摘Alcoholism and cirrhosis,which are two of the most serious health problems worldwide,have a broad spectrum of clinical outcomes.Both diseases are influenced by genetic susceptibility and cultural traits that differ globally but are specific for each population.In contrast to other regions around the world,Mexicans present the highest drinking score and a high mortality rate for alcoholic liver disease with an intermediate category level of per capita alcohol consumption.Mexico has a unique history of alcohol consumption that is linked to profound anthropological and social aspects.The Mexican population has an admixture genome inherited from different races,Caucasian,Amerindian and African,with a heterogeneous distribution within the country.Thus,genes related to alcohol addiction,such as dopamine receptor D2 in the brain,or liver alcoholmetabolizing enzymes,such as alcohol dehydrogenase classⅠpolypeptide B,cytochrome P450 2E1 and aldehyde dehydrogenase class 2,may vary from one individual to another.Furthermore,they may be inherited as risk or non-risk haplogroups that confer susceptibility or resistance either to alcohol addiction or abusive alcohol consumption and possibly liver disease.Thus,in this era of genomics,personalized medicine will benefit patients if it is directed according to individual or population-based data.Additional association studies will be required to establish novel strategies for the prevention,care and treatment of liver disease in Mexico and worldwide. | Sonia Roman Eloy Alfonso Zepeda-Carrillo Laura Eugenia Moreno-Luna Arturo Panduro | 2013 | World Journal of Gastroenterology2013,19,44: | 6 |
| 12 | 在在母亲胎儿的接口的天生、适应的有免疫力的房间之间的不平衡发生在导致内毒素的 preterm 出生以前显示文摘Preterm 出生(PTB ) 是新生的病态和世界范围的死亡的领先的原因。到在母亲并且在母亲胎儿的接口的一个支持 inflammatory 状态的来自一个反煽动性的状态的转变在微生物引起导致 preterm 劳动的 pathophysiology 被含有。然而,房间哪个免疫者调停,是不清楚的这转变。我们假设了那在在母亲胎儿的接口的天生、适应的有免疫力的房间之间的不平衡将发生在微生物引起导致 preterm 劳动以前。用导致内毒素的 PTB 的一个确定的鼠科的模型,我们的结果证明在交货以前,有 CD4+ 的减小;在子宫的纸巾的规章的 T 房间(Tregs ) 。这减小被子宫的纸巾也不在脾连接到 Tregs 的一个减少的数字,也不到 IL10, CCL17,或 CCL22 的损害生产。到怀孕老鼠的内毒素管理不改变受动器 CD4+在母亲胎儿的接口的 T 房间。然而,它引起在 Tregs 之间的不平衡(CD4+并且 CD8+) ,受动器 CD8+在怒气的 T 房间,和 Th17 房间。另外,到怀孕老鼠的内毒素管理象丰富的 neutrophils 一样由子宫的纸巾导致 CCL2, CCL3, CCL17,和 CCL22 的过多的生产。在子宫的微型环境的这不平衡被象巨噬细胞和 MHC II+ 那样的少见的象 APC 一样房间伴随;neutrophils。一起,这些结果证明到怀孕老鼠的内毒素管理在母亲胎儿的接口引起在天生、适应的有免疫力的房间之间的不平衡。 | Marcia Arenas-Hernandez Roberto Romero Derek St Louis Sonia S Hassan Emily B Kaye Nardhy Gomez-Lopez | 2016 | Cellular & Molecular Immunology2016,13,4: | 6 |
| 13 | Sustained Type I interferon signaling as a mechanism of resistance to PD-1 blockade显示文摘PD-1 blockade represents a major therapeutic avenue in anticancer immunotherapy.Delineating mechanisms of secondary resistance to this strategy is increasingly important.Here,we identified the deleterious role of signaling via the type I interferon(IFN)receptor in tumor and antigen presenting cells,that induced the expression of nitric oxide synthase 2(N0S2),associated with intratumor accumulation of regulatory T cells(Treg)and myeloid cells and acquired resistance to anti-PD-1 monoclonal antibody(mAb).Sustained IFNP transcription was observed in resistant tumors,in turn inducing PD-L1 and N0S2 expression in both tumor and dendritic cells(DC).Whereas PD-L1 was not involved in secondary resistance to anti-PD-1 mAb,pharmacological or genetic inhibition of N0S2 maintained long-term control of tumors by PD-1 blockade,through reduction of Treg and DC activation.Resistance to immunotherapies,including anti-PD-1 mAb in melanoma patients,was also correlated with the induction of a type I IFN signature.Hence,the role of type I IFN in response to PD-1 blockade should be revisited as sustained type I IFN signaling may contribute to resistance to therapy. | Nicolas Jacquelot Takahiro Yamazaki Maria PRoberti Connie PMDuong Miles CAndrews Loic Verlingue Gladys Ferrere Sonia Becharef Marie Vetizou Romain Daillere Meriem Messaoudene David PEnot Gautier Stoll Stefano Ugel Maria Marigo Shin Foong Ngiow Aurelien Marabelle Armelle Prevost-Blondel Pierre-Olivier Gaudreau Vancheswaran Gopalakrishnan Alexander MEggermont Paule Opolon Christophe Klein Gabriele Madonna Paolo AAscierto Antje Sucker Dirk Schadendorf Mark JSm yth Jean-Charles Soria Guido Kroemer Vincenzo Bronte Jennifer Wargo and Laurence Zitvogel | 2019 | Cell Research2019,29,10: | 6 |
| 14 | Oxidative stress modulation in hepatitis C virus infected cells显示文摘Hepatitis C virus(HCV) replication is associated with the endoplasmic reticulum, where the virus can induce cellular stress. Oxidative cell damage plays an important role in HCV physiopathology. Oxidative stress is triggered when the concentration of oxygen species in the extracellular or intracellular environment exceeds antioxidant defenses. Cells are protected and modulate oxidative stress through the interplay of intracellular antioxidant agents, mainly glutathione system(GSH) and thioredoxin; and antioxidant enzyme systems such as superoxide dismutase, catalase, GSH peroxidase, and heme oxygenase-1. Also, the use of natural and synthetic antioxidants(vitamin C and E, N-acetylcysteine, glycyrrhizin, polyenylphosphatidyl choline, mitoquinone, quercetin, S-adenosylmethionine and silymarin) has already shown promising results as co-adjuvants in HCV therapy. Despite all the available information, it is not known how different agents with antiviral activity can interfere with the modulation of the cell redox state induced by HCV and decrease viral replication. This review describes an evidence-based consensus on molecular mechanisms involved in HCV replication and their relationship with cell damage induced by oxidative stress generated by the virus itself and cell antiviral machinery. It also describes some molecules that modify the levels of oxidative stress in HCV-infected cells. | Sonia A Lozano-Sepulveda Owen L Bryan-Marrugo Carlos Cordova-Fletes Maria C Gutierrez-Ruiz Ana M Rivas-Estilla | 2015 | World Journal of Hepatology2015,7,29: | 6 |
| 15 | Assessment of hemostatic profile in patients with mild to advanced liver cirrhosis显示文摘BACKGROUND Hemostasis of patients suffering from liver cirrhosis is challenging due to both,pro-and anticoagulatory disorders leading to hemostatic alterations with distinct abnormalities of coagulation.Pathological changes in conventional coagulation analysis and platelet count are common manifestations of decreased liver synthesis of coagulation factors and reduced platelet count in these patients.However,conventional coagulation analysis and platelet count do not reflect invivo coagulation status or platelet function.The purpose of this present observational study was therefore to assess the haemostatic profile including plasmatic coagulation using thrombelastometry and impedance aggregometry for platelet function in patients suffering from liver cirrhosis.AIM To assess the hemostatic profile of cirrhotic patients according to model for endstage liver disease(MELD)score.METHODS Our study included both in-and outpatients suffering from liver cirrhosis attending the out-and inpatient care of the department of hepatology.Demographic and biochemical data as well as medical history including cause of liver cirrhosis,end stage kidney failure and medication with anticoagulants were recorded.To assess the hemostatic profile,platelet function was analyzed by multiple electrode aggregometry(MEA)using Multiplate^■(ADP-,ASPI-and TRAP-test)and thrombelastometry using ROTEM^■(EXTEM,INTEM,FIBTEM).Data were compared using Mann-Whitney U-or χ^2-test.Spearman correlation was performed to analyze the association between MELD Score and results of thrombelastometry and MEA.RESULTS A total of 68 patients attending the out-and inpatient care suffering from liver cirrhosis were screened.Of these,50 patients were included and assigned to groups according to MELD score 6 to 11(n=25)or≥17(n=25).Baseline patient characteristics revealed significant differences for MELD score(8 vs 22,P<0.0001)and underlying laboratory parameters(international normalized ratio,bilirubine,creatinine)as well as fibrinogen level(275 mg/dL vs 209 mg/dL,P=0.006)and aPTT(30 s vs 35 s,P=0.047).MEA showed a moderately impaired platelet function(medians:AUCADP=43U,AUCASPI=71U,AUCTRAP=92U)but no significant differences between both groups.Thrombelastometry using ROTEM?(EXTEM,INTEM,FIBTEM)revealed values within normal range in both groups.No significant correlation was observed between MELD score and results of MEA/thrombelastometry.CONCLUSION Our data demonstrate a partially impaired hemostatic profile in liver cirrhosis patients unrelated to MELD score.An individual assessment of a potential coagulopathy should therefore be considered. | Elisabeth Hannah Adam Madara Mohlmann Eva Herrmann Sonia Schneider Kai Zacharowski Stefan Zeuzem Christian Friedrich Weber Nina Weiler | 2020 | World Journal of Gastroenterology2020,26,17: | 5 |
| 16 | Anti-hepatitis C virus potency of a new autophagy inhibitor using human liver slices model显示文摘AIM: To evaluate the antiviral potency of a new antihepatitis C virus(HCV) antiviral agent targeting the cellular autophagy machinery. METHODS: Non-infected liver slices, obtained from human liver resection and cut in 350 μm-thick slices(2.7 × 106 cells per slice) were infected with cell culture-grown HCV Con1b/C3 supernatant(multiplicity of infection = 0.1) cultivated for up to ten days. HCV infected slices were treated at day 4 post-infection with GNS-396 for 6 d at different concentrations. HCV replication was evaluated by strand-specific real-time quantitative reverse transcription- polymerase chain reaction. The infectivity titers of supernatants were evaluated by foci formation upon inoculation into naive Huh-7.5.1 cells. The cytotoxic effect of the drugs was evaluated by lactate dehydrogenase leakage assays. RESULTS: The antiviral efficacy of a new antiviral drug, GNS-396, an autophagy inhibitor, on HCV infection of adult human liver slices was evidenced in a dosedependent manner. At day 6 post-treatment, GNS-396 EC50 was 158 nmol/L without cytotoxic effect(compared to hydroxychloroquine EC50 = 1.17 μmol/L).CONCLUSION: Our results demonstrated that our ex vivo model is efficient for evaluation the potency of autophagy inhibitors, in particular a new quinoline derivative GNS-396 as antiviral could inhibit HCV infection in a dosedependent manner without cytotoxic effect. | Sylvie Lagaye Sonia Brun Jesintha Gaston Hong Shen Ruzena Stranska Claire Camus Clarisse Dubray Géraldine Rousseau Pierre-Philippe Massault Jerome Courcambeck Firas Bassisi Philippe Halfon Stanislas Pol | 2016 | World Journal of Hepatology2016,8,21: | 5 |
| 17 | HBV endemicity in Mexico is associated with HBV genotypes H and G显示文摘Hepatitis B virus(HBV)genotypes have distinct genetic and geographic diversity and may be associated with specific clinical characteristics,progression,severity of disease and antiviral response.Herein,we provide an updated overview of the endemicity of HBV genotypes H and G in Mexico.HBV genotype H is predominant among the Mexican population,but not in Central America.Its geographic distribution is related to a typical endemicity among the Mexicans which is characterized by a low hepatitis B surface antigen seroprevalence,apparently due to a rapid resolution of the infection,low viral loads and a high prevalence of occult B infection.During chronic infections,genotype H is detected in mixtures with other HBV genotypes and associated with other co-morbidities,such as obesity,alcoholism and co-infection with hepatitis C virus or human immunodeficiency virus.Hepatocellular carcinoma prevalence is low.Thus,antiviral therapy may differ significantly from the standard guidelines established worldwide.The high prevalence of HBV genotype G in the Americas,especially among the Mexican population,raises new questions regarding its geographic origin that will require further investigation. | Sonia Roman Arturo Panduro | 2013 | World Journal of Gastroenterology2013,19,33: | 5 |
| 18 | Ontogenetic transition in leaf traits: a new cost associated with the increase in leaf longevity显示文摘Aims Recent work has identified a worldwide‘economics’spectrum of correlated leaf traits that mainly reflects the compromises between maximizing leaf longevity and short-term productivity.However,during the early stages of tree growth different species tend to exhibit a common strategy,because competition for soil water and nutrients forces the maximization of short-term productivity owing to the need for rapid growth during the most vulnerable part of the tree’s life cycle.Accordingly,our aim here was to compare the variations that occur during ontogeny in the different leaf traits(morphology and leaf chemical composition)of several coexisting Mediterranean woody species differing in their leaf life spans and to test our hypothesis that tree species with a long leaf life span should exhibit larger shifts in leaf characteristics along ontogeny.Methods Six Mediterranean tree species differing in leaf life span,selected from three plots located in central-western Spain,were studied during three growth stages:seedlings,juveniles and mature trees.Leaf life span,leaf morphology(leaf area,dry weight,thickness and mass per unit area)and chemical composition(N and fibre con-centrations)were measured in all six species.The magnitude of the ontogenetic changes in the different traits was estimated and related to the mean leaf longevity of the different species.Important Findings Along ontogeny,strong changes were observed in all variables analysed.The early growth stages showed lower leaf thickness,leaf thickness and mass per unit area and N,cellulose and hemi-cellulose concentrations than mature trees,but a higher lignin content.However,these changes were especially marked in species with a longer leaf life span at maturity.Interspecific dif-ferences in leaf life span,leaf morphology and chemical com-position were stronger at the mature stage than at the seedling stage.We conclude that greater plasticity and more intense strat-egy shifts along ontogeny are necessarily associated with long leaf life span.Our results thus provide a new aspect that should be incorporated into the analysis of the costs and benefits associ-ated with the different strategies related to leaf persistence dis-played by the different species.Accordingly,the intensity of the alterations in leaf traits among different growth stages should be added to the suite of traits that change along the leaf economics spectrum. | Sonia Mediavilla Maria Herranz Patricia González-Zurdo Alfonso Escudero | 2014 | Journal of Plant Ecology2014,7,6: | 5 |
| 19 | Forest Biodiversity Assessment in Peruvian Andean Montane Cloud Forest显示文摘Cloud forests are unusual and fragile habitats, being one of the least studied and least understood ecosystems. The tropical Andean dominion is considered one of the most significant places in the world as regards biological diversity, with a very high level of endemism. The biodiversity was analysed in an isolated remnant area of a tropical montane cloud forest known as the 'Bosque de Neblina de Cuyas', in the North of the Peruvian Andean range. Composition, structure and dead wood were measured or estimated. The values obtained were compared with other cloud forests. The study revealed a high level of forest biodiversity, although the level of biodiversity differs from one area to another: in the inner areas, where human pressure is almost inexistent, the biodiversity values increase. The high species richness and the low dominance among species bear testimony to this montane cloud forest as a real enclave of biodiversity. | Alicia Ledo Sonia Condés Iciar Alberdi | 2012 | Journal of Mountain Science2012,9,3: | 5 |
| 20 | Small molecule activators of the p53 response显示文摘Drugging the p53 pathway has been a goal for both academics and pharmaceutical companies since the designation of p53 as the'guardian of the genome'.Through growing understanding of p53 biology,we can see multiple routes for activation of both wild-type p53 function and restoration of mutant p53?In this review,we focus on small molecules that activate wild-type p53 and that do so in a nongenotoxit manner.In particular,we will describe potential approaches to targeting proteins that alter p53 stability and function through posttranslational modification,affect p53's subcellular localization,or target RNA synthesis or the synthesis of ribonucleotides.The plethora of pathways for exploitation of p53,as well as the wide-ranging response to p53 activation,makes it an attractive target for anti-cancer therapy. | Marcus J.G.W.Ladds Sonia Lain | 2019 | Journal of Molecular Cell Biology2019,11,3: | 5 |