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651篇 您的检索式:作者名="Andrade L"
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1Assessment of drug-induced hepatotoxicity in clinical practice: A challenge for gastroenterologists显示文摘Currently, pharmaceutical preparations are serious contributors to liver disease; hepatotoxicity ranking as the most frequent cause for acute liver failure and post-commercialization regulatory decisions. The diagnosis of hepatotoxicity remains a difficult task because of the lack of reliable markers for use in general clinical practice. To incriminate any given drug in an episode of liver dysfunction is a step-by-step process that requires a high degree of suspicion, compatible chronology, awareness of the drug’s hepatotoxic potential, the exclusion of alternative causes of liver damage and the ability to detect the presence of subtle data that favors a toxic etiology. This process is time-consuming and the final result is frequently inaccurate. Diagnostic algorithms may add consistency to the diagnostic process by translating the suspicion into a quantitative score. Such scales are useful since they provide a framework that emphasizes the features that merit attention in cases of suspected hepatic adverse reaction as well. Current efforts in collecting bona fide cases of drug-induced hepatotoxicity will make refinements of existing scales feasible. It is now relatively easy to accommodate relevant data within the scoring system and to delete low-impact items. Efforts should also be directed toward the development of an abridged instrument for use in evaluating suspected drug-induced hepatotoxicity at the very beginning of the diagnosis and treatment process when clinical decisions need to be made. The instrument chosen would enable a confident diagnosis to be made on admission of the patient and treatment to be fine-tuned as further information is collected.Raúl J Andrade Mercedes Robles Alejandra Fernández-Castaer Susana López-Ortega M Carmen López-Vega M Isabel Lucena 2007World Journal of Gastroenterology2007,13,3:18
2drug-induced autoimmune liver disease:a diagnostic dilemma of an increasingly reported disease显示文摘The aetiology of autoimmune hepatitis(AIH) is uncer-tain but the disease can be triggered in susceptible patients by external factors such as viruses or drugs.AIH usually develops in individuals with a genetic back-ground mainly consisting of some risk alleles of the major histocompatibility complex(HLA).Many drugs have been linked to AIH phenotypes,which sometimes persist after drug discontinuation,suggesting that they awaken latent autoimmunity.At least three clini-cal scenarios have been proposed that refers to drug- induced autoimmune liver disease(DIAILD):AIH with drug-induced liver injury(DILI); drug induced-AIH(DI-AIH); and immune mediated DILI(IM-DILI).In addi-tion,there are instances showing mixed features of DI-AIH and IM-DILI,as well as DILI cases with positive autoantibodies.Histologically distinguishing DILI from AIH remains a challenge.Even more challenging is the differentiation of AIH from DI-AIH mainly relying in histological features; however,a detailed standard-ised histologic evaluation of large cohorts of AIH and DI-AIH patients would probably render more subtle features that could be of help in the differential diag-nosis between both entities.Growing information on the relationship of drugs and AIH is being available,being drugs like statins and biologic agents more fre-quently involved in cases of DIAILD.In addition,there is some evidence on the fact that patients diagnosed with DIAILD may have had a previous episode of hepa-totoxicity.Further collaborative studies in DIAILD will strengthen the knowledge and understanding of this intriguing and complex disorder which might represent different phenotypes across the spectrum ofAgustin Castiella Eva Zapata M Isabel Lucena Raúl J Andrade 2014World Journal of Hepatology2014,6,4:13
3Concordance of non-invasive mechanical and serum tests for liver fibrosis evaluation in chronic hepatitis C显示文摘AIM To determine the sensitivity and specificity of liver stiffness measurement(LSM) and serum markers(SM) for liver fibrosis evaluation in chronic hepatitis C.METHODS Between 2012 and 2014,81 consecutive hepatitis C virus(HCV) patients had METAVIR score from liver biopsy compared with concurrent results from LSM [transient elastography(TE) [FibroS can~/ARFI technology(Virtual Touch~)] and SM [FIB-4/aspartate aminotransferase-toplatelet ratio index(APRI)].The diagnostic performance of these tests was assessed using receiver operating characteristic curves.The optimal cut-off levels of each test were chosen to define fibrosis stages F ≥ 2,F ≥ 3 and F = 4.The Kappa index set the concordance analysis.RESULTS Fifty point six percent were female and the median age was 51 years(30-78).Fifty-six patients(70%) weretreatment-na?ve.The optimal cut-off values for predicting F ≥ 2 stage fibrosis assessed by TE were 6.6 kP a,for acoustic radiation force impulse(ARFI) 1.22 m/s,for APRI 0.75 and for FIB-4 1.47.For F ≥ 3 TE was 8.9 kP a,ARFI was 1.48 m/s,APRI was 0.75,and FIB-4 was 2.For F = 4,TE was 12.2 kP a,ARFI was 1.77 m/s,APRI was 1.46,and FIB-4 was 3.91.The APRI could not distinguish between F2 and F3,P = 0.92.The negative predictive value for F = 4 for TE and ARFI was 100%.Kappa index values for F ≥ 3 METAVIR score for TE,ARFI and FIB-4 were 0.687,0.606 and 0.654,respectively.This demonstrates strong concordance between all three screening methods,and moderate to strong concordance between them and APRI(Kappa index = 0.507).CONCLUSION Given the costs and accessibility of LSM methods,and the similarity with the outcomes of SM,we suggest that FIB-4 as well as TE and ARFI may be useful indicators of the degree of liver fibrosis.This is of particular importance to developing countries.Denise C Paranaguá-Vezozzo Adriana Andrade Daniel F C Mazo Vinicius Nunes Ana L Guedes Taisa G Ragazzo Renata Moutinho Lucas S Nacif Suzane K Ono Venancio A F Alves Flair J Carrilho 2017World Journal of Hepatology2017,9,8:7
4Personalizing therapies for gastric cancer: Molecular mechanisms and novel targeted therapies显示文摘Globally,gastric cancer is the 4thmost frequently diagnosed cancer and the 2ndleading cause of death from cancer,with an estimated 990000 new cases and738000 deaths registered in 2008.In the advanced setting,standard chemotherapies protocols acquired an important role since last decades in prolong survival.Moreover,recent advances in molecular therapies provided a new interesting weapon to treat advanced gastric cancer through anti-human epidermal growth factor receptor 2(HER2)therapies.Trastuzumab,an anti-HER2 monoclonal antibody,was the first target drug in the metastatic setting that showed benefit in overall survival when in association with platinum-5-fluorouracil based chemotherapy.Further,HER2 overexpression analysis acquired a main role in predict response for trastuzumab in this field.Thus,we conducted a review that will discuss the main points concerning trastuzumab and HER2 in gastric cancer,providing a comprehensive overview of molecular mechanisms and novel trials involved.Michael Luis Ana Tavares Liliana S Carvalho Lúcio Lara-Santos António Araújo Ramon Andrade de Mello 2013World Journal of Gastroenterology2013,19,38:6
5Sex-specific effects of Eugenia punicifolia extract on gastric ulcer healing in rats显示文摘AIM To evaluate the sex-specific effects of a hydroalcoholic extract from Eugenia punicifolia(HEEP) leaves on gastric ulcer healing.METHODS In this rat study involving males, intact(cycling) females, and ovariectomized females, gastric ulcers were induced using acetic acid. A vehicle, lansoprazole, or HEEP was administered for 14 d after ulcer induction. Body weight was monitored throughout the treatment period. At the end of treatment, the rats were euthanized and the following in vivo and in vitro investigations were performed: macroscopic examination of the lesion area and organ weights, biochemical analysis, zymography, and evaluation of protein expression levels. Additionally, the concentration-dependent effect of HEEP was evaluated in terms of subacute toxicity and cytotoxicity.RESULTS Compared to the vehicle, HEEP demonstrated a great healing capacity by substantially reducing the ulcerative lesion area in males(52.44%), intact females(85.22%), and ovariectomized females(65.47%), confirming that HEEP accelerates the healing of acetic acidinduced gastric lesions and suggesting that this effect is modulated by female sex hormones. The antiulcer effect of HEEP was mediated by prostaglandin E2 only in male rats. Overall, the beneficial effect of HEEP was the highest in intact females. Notably, HEEP promoted the expression of vascular endothelial growth factor(intact vs ovariectomized females) and decreased the expression of Caspase-8 and Bcl-2(intact female vs male or ovariectomized female). Additionally, HEEP enhanced fibroblast proliferation and migration into a wounded area in vitro, confirming its healing effect. Finally, no sign of subacute toxicity or cytotoxicity of HEEP was observed.CONCLUSION In gastric ulcers, HEEP-induced healing(modulated by female sex hormones; in males, mediated by prostaglandin) involves extracellular matrix remodeling, with gastric mucosa cell proliferation and migration.Larissa Lucena Périco Vinícius Peixoto Rodrigues Rie Ohara Gabriela Bueno Vania Vasti Alfieri Nunes Raquel Cássia dos Santos Ana Carolina Lima Camargo Luis Antuio Justulin Joior Sérgio Faloni de Andrade Viviane Miranda Bispo Steimbach Luísa Mota da Silva Lúcia Regina Machado da Rocha Wagner Vilegas Catarina dos Santos Clélia Akiko Hiruma-Lima 2018World Journal of Gastroenterology2018,24,38:3
6Can baseline ML Flow test results predict leprosy reactions? An investigation in a cohort of patients enrolled in the uniform multidrug therapy clinical trial for leprosy patients in Brazil显示文摘Background:The predictive value of the serology to detection of IgM against the Mycobacterium leprae-derived phenolic glycolipid-I/PGL-I to identify leprosy patients who are at higher risk of developing reactions remains controversial.Whether baseline results of the ML Flow test can predict leprosy reactions was investigated among a cohort of patients enrolled in The Clinical Trial for Uniform Multidrug Therapy for Leprosy Patients in Brazil(U-MDT/CT-BR).Methods:This was a descriptive study focusing on the main clinical manifestations of leprosy patients enrolled in the U-MDT/CT-BR from March 2007 to February 2012 at two Brazilian leprosy reference centers.For research purposes,753 leprosy patients were categorized according to a modified Ridley-Jopling(R&J)classification and according to the development of leprosy reactions(reversal reaction/RR and erythema nodosum leprosum/ENL),and whether they had a positive or negative bacillary index/BI.Results:More than half of the patients(55.5%)reported leprosy reaction:18.3%(138/753)had a RR and 5.4%(41/753)had ENL.Leprosy reactions were more frequent in the first year following diagnosis,as seen in 27%(205/753)of patients,while 19%(142/753)developed reactions during subsequent follow-up.Similar frequencies of leprosy reactions and other clinical manifestations were observed in paucibacillary(PB)and multibacillary(MB)leprosy patients treated with U-MDT and regular MDT(R-MDT)(P=0.43 and P=0.61,respectively).Compared with PB patients,leprosy reactions were significantly more frequent in MB patients with a high BI,and more patients developed RR than ENL.However,RR and neuritis were also reported in patients with a negative BI.At baseline,the highest rate of ML Flow positivity was observed in patients with a positive BI,especially those who developed ENL,followed by patients who had neuritis and RR.Among reaction-free patients,81.9%were ML Flow positive,however,the differences were not statistically significant compared to reactional patients(P=0.45).Conclusions:MB and PB patients treated with R-MDT and U-MDT showed similar frequencies of RR and other clinical manifestations.Positive ML Flow tests were associated with MB leprosy and BI positivity.However,ML Flow test results at baseline showed limited sensitivity and specificity for predicting the development of leprosy reactions.Emerith Mayra Hungria Regiane Morillas Oliveira Gerson Oliveira Penna Lúcio Cartaxo Aderaldo Maria Araci de Andrade Pontes Rossilene Cruz Heitor de SáGonçalves Maria Lúcia Fernandes Penna Ligia Regina Franco Sansigolo Kerr Mariane Martins de Araújo Stefani Samira Bührer-Sékula 2016Infectious Diseases of Poverty2016,5,1:2
7Comparison of two clinical scales for causality assessment in hepatotoxicity显示文摘Ma Isabel Lucena Raquel Camargo Raúl J. Andrade Carlos J. Perez-Sanchez Felipe Sanchez De La Cuesta 2001Hepatology2001,,1:2
8Adverse hepatic reactions associated with calcium carbimide and disulfiram therapy: Is there still a role for these drugs?显示文摘四乙秋兰姆化二硫和钙 carbimide 是二白酒威慑然而,广泛地在那里在酒精中毒治疗使用的狂言存在对他们的安全的大担心。hepatotoxicity 上的报告主要与四乙秋兰姆化二硫治疗有关,被出版了。钙 carbimide 的肝毒素的潜力是很好描绘的更少。这里,我们描述与被提交到 hepatotoxicity 的一张注册表并且当规定这些混合物时,指出我们面对的限制的这个治疗学的组有关的肝损坏的四个案例。对在白酒依赖的管理的这些混合物的角色的重估清楚地被需要。Carmen Verge M Isabel Lucena Enrique López-Torres M José Puche-García Enrique Fraga Manuel Romero-Gomez Raúl J Andrade 2006World Journal of Gastroenterology2006,12,31:2
9Insulin resistance impairs sustained response rate to peginterferon plus ribavirin in chronic hepatitis C patients显示文摘Manuel Romero-Gómez Maria Del Mar Viloria Raúl J. Andrade Javier Salmerón Moisés Diago Conrado M. Fernández-Rodríguez Raquel Corpas Marina Cruz Lourdes Grande Luis Vázquez Paloma Mu?oz-de-Rueda Pilar López-Serrano Ana Gila María L. Gutiérrez Celia Pérez A 2005Gastroenterology2005,,3:2
10Heavy metal sorption and desorption capacity of soils containing endogenous contaminants 显示文摘COVELO E F VEGA F A ANDRADE M L 2007Journal of Hazardous Materials2007,143,:1
11Renal effects of N - acetylcysteinc in patients at risk for contrast nephropathy : decrease in oxidant stress - mediated renal tubular injury 显示文摘Dragcr LF Andrade L Barros de Toledo JF 2004Nephrol Dial Transplant2004,19,7:1
12Simultaneous mandibular and maxillary distraction in hemifacial microsomia in adults:avoiding occlusal disasters显示文摘Ortiz Monasterio F Molina F Andrade L 1997Plast Reeonstr Surg1997,100,4:1
13Comparison of six-minute walk test in children with moderate/ severe asthma with reference values for healthy children显示文摘ANDRADE L B SILV A R G SALGADO T L B 2014Jomal de Pediatria2014,90,3:1
14Abstract Specification and Formalization of an Operating System Kernel in Z显示文摘Barreto L Andrade A Duran A 2011ACM SIGOPS Operating Systems Review2011,45,1:1
15Effects of tillage method and crop rotation on the population sizes and diversity of bradyrhizobia nodulating soybean显示文摘FERREIRA M C ANDRADE D S CHUEIRE L M O 2000Soil Biology Biochemistry2000,32,:1
16The life cycle of Hebella furax (Cnidaria, Hydrozoa) :a link between a lafoeid hydroid and a laodiceid medusa显示文摘Migotto A E De Andrade L P 2000J Nat Hist2000,34,:1
17The effect of grinding conditions on the flotation of a sulphide copper ore 显示文摘Conclaves K L C Andrade V L L Peres A E C 2003Minerals Engineering2003,16,11:1
18The effect of grinding conditions on the flotation of a sulphide copper ore 显示文摘Gonealves K L C Andrade V L L Peres A E C 2003Minerals Engineering2003,16,2:1
19Activation of the PI3K/Akt pathway early during vaccinia and cowpox virus infections is required for both host survival and viral replication 显示文摘SOARES J A LEITE F G ANDRADE L G 2009J Virol2009,83,13:1
20Successful preservation of fertility subsequent to a complete pathologic response of a squamous cell carcinama of the uterine cervix treated with primary systemic chemotherapy显示文摘Andrade J M Marana H R Mangieri L F 2000Gynecol Oncol2000,77,1:1
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