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    题名 作者 年代 出处 被引量
1Double-stranded DNA in exosomes: a novel biomarker in cancer detection显示文摘Basant Kumar Thakur Haiying Zhang Annette Becker Irina Matei Yujie Huang Bruno Costa-Silva Yan Zheng Ayuko Hoshino Helene Brazier Jenny Xiang Caitlin Williams Ruth Rodriguez-Barrueco Jose M Silva Weijia Zhang Stephen Hearn Olivier Elemento Navid Paknejad Katia Manova-Todorova Karl Welte Jacqueline Bromberg Hector Peinado David Lyden 2014Cell Research2014,24,6:98
2Helicobacter pylori in dental plaque and stomach of patients from Northern Brazil显示文摘AIM: To establish whether virulence factor genes vacA and cagA are present in Helicobacter pylori (H. pylori) retrieved from gastric mucosa and dental plaque in pa-tients with dyspepsia. METHODS: Cumulative dental plaque specimens and gastric biopsies were submitted to histological exami-nation, rapid urease test and polymerase chain reac-tion (PCR) assays to detect the presence of cagA and vacA polymorphisms.RESULTS: Detection of H. pylori from dental plaque and gastric biopsy samples was greater by PCR com-pared to histological examination and the rapid ure-ase test. DNA from H. pylori was detected in 96% of gastric mucosa samples and in 72% of dental plaque samples. Sixty-three (89%) of 71 dental plaque sam-ples that were H. pylori-positive also exhibited identical vacA and cagA genotypes in gastric mucosa. The most common genotype was vacAs1bm1 and cagA positive, either in dental plaque or gastric mucosa. These viru-lent H. pylori isolates were involved in the severity of clinical outcome.CONCLUSION: These pathogenic strains were found simultaneously in dental plaque and gastric mucosa, which suggests that gastric infection is correlated with the presence of H. pylori in the mouth.Mnica Baraúna Assumpo Luisa Caricio Martins Hivana Patricia Melo Barbosa Katarine Antonia dos Santos Barile Sintia Silva de Almeida Paulo Pimentel Assumpo Tereza Cristina de Oliveira Corvelo 2010World Journal of Gastroenterology2010,16,24:29
3Pediatric functional constipation treatment with Bifi dobacterium-containing yogurt:A crossover,double-blind,controlled trial显示文摘AIM: To evaluate the treatment of pediatric functional chronic intestinal constipation (FCIC) with a probiotic goat yogurt. METHODS: A crossover double-blind formula-controlled trial was carried out on 59 students (age range: 5-15 years) of a public school in Belo Horizonte, MG, Brazil, presenting a FCIC diagnostic, according to Roma Ⅲ criteria. The students were randomized in two groups to receive a goat yogurt supplemented with 109 colony forming unit/mL Bifidobacterium longum (B.longum) (probiotic) daily or only the yogurt for a period of 5 wk (formula). Afterwards, the groups were intercrossed for another 5 wk. Defecation frequency, stool consistency and abdominal and defecation pain were assessed.RESULTS: Both treatment groups demonstrated improvement in defecation frequency compared to baseline. However, the group treated with probiotic showed most signif icant improvement in the f irst phase of the study. An inversion was observed after crossing over, resulting in a reduction in stool frequency when this group was treated by formula. Probiotic and formula improved stool consistency in the f irst phase of treatment, but the improvement obtained with probiotic was significantly higher (P = 0.03). In the second phase of treatment, the group initially treated with probiotic showed worseningstool consistency when using formula. However, the difference was not signif icant. A signif icant improvement in abdominal pain and defecation pain was observed with both probiotic and formula in the first phase of treatment, but again the improvement was more signif icant for the group treated with B. longum during phase I (P < 0.05). When all data of the crossover study were analyzed, significant differences were observed between probiotic yogurt and yogurt only for defecation frequency (P = 0.012), defecation pain (P = 0.046) and abdominal pain (P = 0.015).Paula VP Guerra Luiza N Lima Tassia C Souza Vanessa Mazochi Francisco J Penna Andreia M Silva Jacques R Nicoli Elizabet V Guimares 2011World Journal of Gastroenterology2011,17,34:25
4Polymorphisms of DNA repair genes XRCC1 and XRCC3, interaction with environmental exposure and risk of chronic gastritis and gastric cancer显示文摘AIM: To evaluate the association between polymorphisms XRCC1 Arg194Trp and Arg399Gln and XRCC3Thr241Met and the risk for chronic gastritis and gastric cancer, in a Southeastern Brazilian population.METHODS: Genotyping by PCR-RFLP was carried out on 202 patients with chronic gastritis (CG) and 160 patients with gastric cancer (GC), matched to 202 (C1) and 150(C2) controls, respectively.RESULTS: No differences were observed among the studied grou ps with regard to the genotype distribution of XRCC1 codons 194 and 399 and of XRCC3 codon 241. However, the combined analyses of the three variant alleles (194Trp, 399Gln and 241Met) showed an increased risk for chronic gastritis when compared to the GC group. Moreover, an interaction between the polymorphic alleles and demographic and environmental factors was observed in the CG and GC groups. XRCC1 194Trp was associated with smoking in the CG group,while the variant alleles XRCC1 399Gln and XRCC3241Met were related with gender, smoking, drinking and H pylori infection in the CG and GC groups.CONCLUSION: Our results showed no evidence of a rela-tionship between the polymorphisms XRCC1Arg194Trp and Arg399Gln and XRCC3 Thr241Met and the risk of chronic gastritis and gastric cancer in the Brazilian population, but the combined effect of these variants may interact to increase the risk for chronic gastritis,considered a premalignant lesion. Our data also indicate a gene-environment interaction in the susceptibility to chronic gastritis and gastric cancer.Márcia Cristina Duarte Jucimara Colombo Andrea Regina Baptista Rossit Alaor Caetano Aldenis Albaneze Borim Durval Wornrath Ana Elizabete Silva 2005World Journal of Gastroenterology2005,11,42:11
5Cytokines,cytokine gene polymorphisms and Helicobacter pylori infection:Friend or foe?显示文摘Helicobacter pylori(H.pylori)is a flagellated,spiralshaped,microaerophilic Gram-negative bacillus that colonises the gastric mucosa of more than 50%of the human population.Infection is a risk factor for gastritis,ulcer disease and stomach cancer.Immunity against H.pylori is mainly related to Th1/Th17 skewing,and the activation of regulatory T cells is the main strategy used to limit inflammatory responses,which can result in the pathogen persistence and can lead to chronic gastrointestinal diseases,including cancer.Furthermore,host genetic factors that affect cytokines may determine differences in the susceptibility to many diseases.In this review,we present the cytokine profiles and the main cytokine gene polymorphisms associated with resistance/susceptibility to H.pylori and discuss how such polymorphisms may influence infection/disease outcomes.Camila A Figueiredo Cintia Rodrigues Marques Ryan dos Santos Costa Hugo Bernardino F da Silva Neuza M Alcantara-Neves 2014World Journal of Gastroenterology2014,20,18:11
6Role of mi RNAs and their potential to be useful as diagnostic and prognostic biomarkers in gastric cancer显示文摘Alterations in epigenetic control of gene expression play an important role in many diseases, including gastric cancer. Many studies have identified a large number of upregulated oncogenic mi RNAs and downregulated tumour-suppressor mi RNAs in this type of cancer. In this review, we provide an overview of the role of mi RNAs, pointing to their potential to be useful as diagnostic and/or prognostic biomarkers in gastric cancer. Moreover, we discuss the influence of polymorphisms and epigenetic modifications on mi RNA activity.Kelly Cristina da Silva Oliveira Taíssa Maíra Thomaz Araújo Camila Inagaki Albuquerque Gabriela Alcantara Barata Carolina Oliveira Gigek Mariana Ferreira Leal Fernanda Wisnieski Fernando Augusto Rodrigues Mello Junior André Salim Khayat Paulo Pimentel de Assumpcao Rommel Mário Rodriguez Burbano Marília Cardoso Smith Danielle Queiroz Calcagno 2016World Journal of Gastroenterology2016,22,35:11
7未固结流砂地层采油过程中出砂情况模拟实验显示文摘为了研究未固结流砂储集层在采油过程中的出砂情况和影响出砂的主要因素,进行了不同条件下的出砂过程模拟实验。使用水洗白砂、黏土(高岭土)和蒸馏水制成未固结流砂地层模型,利用新开发的出砂模拟装置进行了模拟实验,并分析了作用于地层的拖曳力和地层胶结特征对出砂的影响。研究表明,随着拖曳力的增加,出砂速度和产油速度都加快;随着胶结物含量的增加,出砂量和产油量明显降低,甚至在胶结物含量较高的情况下出砂量几乎为零。地层压力大的油藏在开采期间由于产生了较大的拖曳力更可能出砂,而拖曳力和有效地层应力共同影响油藏的总体产油量。可以根据地层黏土含量估计出砂情况,从而通过采取适当的防砂措施尽可能减少出砂量。某些情况下油藏比气藏更容易出砂。PERERA M S A RANJITH P G RATHNAWEERA T D DE SILVA G P D LIU T 2017石油勘探与开发2017,44,5:8
8Different risk factors influence peptic ulcer disease development in a Brazilian population显示文摘AIM: To investigate age, sex, histopathology and Helicobacter pylori (H. pylori) status, as risk factors for gastroduodenal disease outcome in Brazilian dyspeptic patients.tients submitted to upper gastroscopy at Hospital das Clinicas of Marilia, antral biopsy specimens were obtained and subjected to histopathology and H. pylori diagnosis. All patients presenting chronic gastritis (CG) and peptic ulcer (PU) disease localized in the stomach, gastric ulcer (GU) and/or duodenal ulcer (DU) were included in the study. Gastric biopsies (n = 668) positive for H. pylori by rapid urease test were investigated for vacuolating cytotoxin A (vacA ) medium (m) region mosaicism by polymerase chain reaction. Logistic regression analysis was performed to verify the association of age, sex, histopathologic alterations, H. pylori diagnosis and vacA m region mosaicism with the incidence of DU, GU and CG in patients. RESULTS: Of 1466 patients submitted to endoscopy, 1060 (72.3%) presented CG [male/female = 506/554; mean age (year) ± SD = 51.2 ± 17.81], 88 (6.0%) presented DU [male/female = 54/34; mean age (year) ± SD = 51.4 ± 17.14], and 75 (5.1%) presented GU [male/female = 54/21; mean age (year) ± SD = 51.3 ± 17.12] and were included in the comparative analysis. Sex and age showed no detectable effect on CG incidence (overall c 2 = 2.1, P = 0.3423). Sex [Odds ratios (OR) = 1.8631, P = 0.0058] but not age (OR = 0.9929, P = 0.2699) was associated with DU and both parameters had a highly significant effect on GU (overall c 2 = 30.5, P < 0.0001). The histopathological results showed a significant contribution of ageing for both atrophy (OR = 1.0297, P < 0.0001) and intestinal metaplasia (OR = 1.0520, P < 0.0001). Presence of H. pylori was significantly associated with decreasing age (OR = 0.9827, P < 0.0001) and with the incidence of DU (OR = 3.6077, P < 0.0001). The prevalence of m1 in DU was statistically significant (OR = 2.3563, P = 0.0018) but not in CG (OR = 2.678, P = 0.0863) and GU (OR = 1.520, P = 0.2863). CONCLUSION: In our population, male gender was a risk factor for PU; ageing for GU, atrophy and metapla-sia; and H. pylori of vacA m1 genotype for DU.Rodrigo Buzinaro Suzuki Rodrigo Faria Cola Larissa Tranquilino Bardela Cola Camila Garcia Ferrari Fred Ellinger Altino Luiz Therezo Luis Carlos da Silva André Eterovic Márcia Aparecida Sperana 2012World Journal of Gastroenterology2012,18,38:8
9固定低剂量三联抗高血压药物与常规治疗对斯里兰卡轻度至中度高血压患者血压控制的疗效差异:一项随机临床试验显示文摘控制不良的高血压是全球领先的公共卫生问题,需要新的治疗策略。该研究评估低剂量三联抗高血压药物治疗是否能达到比常规治疗更好的血压控制。研究者纳入2016年2月至2017年5月在斯里兰卡11所城市医院诊所就诊的需要开始抗高血压治疗(未治疗的患者)或接受单药治疗的患者,进行低剂量三联降压与常规治疗比较的随机、开放性试验,随访至2017年10月。Web-ster R Salam A de Silva HA Selak V Stepien S Rajapakse S Amarasekara S Amarasena N Billot L de Silva AP Fernando M Guggilla R Jan S Jayawardena J Maulik PK Mendis S Munasinghe J Naik N Prabhakaran D Ranasinghe G Thom S Tisserra N Senaratne V Wijekoon S Wijeyasingam S Rodgers A Patel A 刘莉 叶鹏 2018中华高血压杂志2018,26,12:7
10Is autoimmune hepatitis a frequent finding among HCV patients with intense interface hepatitis?显示文摘AIM:To evaluate the overlap of autoimmune hepatitis in hepatitis C virus(HCV)-infected patients with intense interface hepatitis.METHODS:Among 1759 patients with hepatitis C submitted to liver biopsy,92(5.2%) presented intense interface hepatitis.These patients were evaluated regarding the presence of antinuclear antibody(ANA),anti-smooth muscle antibody(SMA) and anti-liver/kidney microsomal antibody(LKM-1),levels of γ-globulin and histological findings related to autoimmune hepatitis(plasma cell infiltrate and presence of rosettes).RESULTS:Among patients with hepatitis C and intense interface hepatitis there was a low prevalence of autoantibodies(ANA=12%,SMA=5%,LKM-1=0%) and the median γ-globulin level was within the normal range.Typical histological findings of autoimmune disease were observed in only two cases(2%).After applying the score for diagnosis of autoimmune hepatitis,only one patient was classified with a definitive diagnosis of autoimmune hepatitis.Since overlap with autoimmune hepatitis was not the explanation for the intense necroinflammatory activity in patients with chronic hepatitis C we sought to identify the variables associated with this finding.The presence of intense interface hepatitis was associated with more advanced age,both at the time of infection and at the time of the biopsy,and higher prevalence of blood transfusion and alcohol abuse.CONCLUSION:Although possible,overlap with autoimmune hepatitis is a very rare association in HCV-infected patients with intense interface hepatitis,an unusual presentation which seems to be related to other host variables.Rosilene G Badiani Vitória Becker Renata M Perez Carla AL Matos Lara B Lemos Valéria P Lanzoni Luis Eduardo C Andrade Alessandra Dellavance Antonio Eduardo B Silva Maria Lucia G Ferraz 2010World Journal of Gastroenterology2010,16,29:7
11Therapeutic and prophylactic thalidomide in TNBS-induced colitis: Synergistic effects on TNF-α, IL-12 and VEGF production显示文摘AIM: To evaluated the therapeutic and prophylactic effect of thalidomide on 2, 4, 6-trinitrobenzene sulfonic acid (TNBS)-induced colitis. Thalidomide has been reported to downregulate the expression of tumor necrosis factor a (TNF-α), IL-12, and vascular endothelial growth factor (VEGF), hallmarks of intestinal inflammation in Crohn's disease (CD). METHODS: Male Wistar rats were divided in five groups of ten animals each. Four groups received a rectal infusion of TNBS in ethanol. The first group was sacrificed 7 d after colitis induction. The second and third groups received either thalidomide or placebo by gavage and were sacrificed at 14 d. The fourth group received thalidomide 6 h before TNBS administration, and was sacrificed 7 d after induction. The fifth group acted as the control group and colitis was not induced. Histological inflammatory scores of the colon were performed and lamina propria CD4+ T cells, macrophages, and VEGF+ cells were detected by immunohistochemistry. TNF-a and IL-12 were quantified in the supernatant of organ cultures by ELISA. RESULTS: Significant reduction in the inflammatory score and in the percentage of VEGF+ cells was observed in the group treated with thalidomide compared with animals not treated with thalidomide. Both TNF-αand IL-12 levels were significantly reduced among TNBS induced colitis animals treated with thalidomide compared with animals that did not receive thalidomide. TNF-αlevels were also significantly reduced among the animals receiving thalidomide prophylaxis compared with untreated animals with TNBS-induced colitis. Intestinal levels of TNF-αand IL-12 were significantly correlated with the inflammatory score and the number of VEGF+ cells. CONCLUSION: Thalidomide significantly attenuates TNBS-induced colitis by inhibiting the intestinal production of TNF-α, IL-12, and VEGF. This effect may support the use of thalidomide as an alternate approach in selected patients with CD.Ana Teresa Carvalho Heitor Souza Antonio Jose Carneiro Morgana Castelo-Branco Kalil Madi Alberto Schanaider Flavia Silva Fernando Antonio Pereira Júnior Márcia G Pereira Cláudio Tortori Ilana Dines Jane Carvalho Eduardo Rocha Celeste Elia 2007World Journal of Gastroenterology2007,13,15:6
12云南咖啡锈菌小种鉴定显示文摘为明确云南咖啡锈菌小种类型,采用国际通用的19个咖啡锈菌生理小种鉴定寄主,利用人工接种鉴定的方法,对采自云南咖啡主产区12县(市)的51份咖啡锈菌进行鉴定,鉴定出9个小种,分别为VIII(v2,3,5)、XXXIII(v5,7 or v5,7,9)、XXXIV(v2,5,7 or v2,5,7,9)、XXXVII(v2,5,6,7,9)、XLI(v2,5,8)、XLII(v2,5,7,8 or v2,5,7,8,9)、New race(v2,5,6,7)、New race(v1,2,5,7 or v1,2,5,7,9)、New race(v1,5,7 or v1,5,7,9),这9个小种均为国内首次鉴定,其中小种XXXIII、XXXIV、New race(v2,5,6,7)、New race(v1,5,7 or v1,5,7,9)、New race(v1,2,5,7 or v1,2,5,7,9)、XLI和XLII均侵染Catimor7963,小种XXXVII侵染CatimorT5175。白学慧 V M P VáRZEA 郭铁英 M C SILVA 张洪波 李锦红 2018热带作物学报2018,39,9:5
13癌症靶向CTLA-4:是PD-1免疫阻断疗法的理想组合?显示文摘经阻断免疫检查点增强自发而持久抗肿瘤免疫反应的免疫疗法,正在彻底改变恶性肿瘤患者的治疗及预后,其中细胞毒性T淋巴细胞抗原-4(CTLA-4)作为首个免疫检查点靶向分子,单独或与抗程序性细胞死亡蛋白-1(PD-1)抗体联合应用,使临床选择获益匪浅。早在2011年美国FDA就批准伊匹单抗(ipilimumab)作为癌症免疫检查点阻断(ICB)药物,成功治愈了部分转移性黑色素瘤。De Silva P Aiello M Gu-Trantien C 方三高(译) 魏建国(校) 2021诊断病理学杂志2021,28,9:4
14High prevalence of vitamin A deficiency in Crohn's disease patients according to serum retinol levels and the relative dose-response test显示文摘AIM:To assess the vitamin A status of patients with Crohn's disease(CD) by evaluating serum retinol levels and the relative dose response(RDR) test(liver retinol stores).METHODS:Vitamin A nutritional status was measured by serum retinol obtained by high performance liquid chromatography and the RDR test for evaluation of the hepatic stores.Body composition was performed by densitometry by dual-energy X-ray absorptiometry.Vitamin A dietary intake was assessed from a semiquantitative food frequency questionnaire.RESULTS:This study included 38 CD patients and 33 controls.Low serum retinol concentrations were detected in 29% of CD patients vs 15% in controls(P < 0.005).The RDR test was positive in 37% of CD patients vs 12% in controls,which indicated inadequate hepatic vitamin A stores(P < 0.005).Individuals with hypovitaminosis A had lower BMI and body fat compared with those without this deficiency.There was no association between vitamin A deficiency and its dietary intake,ileal location,presence of disease activity and prior bowel resections.CONCLUSION:Patients with CD have higher prevalence of vitamin A deficiency,as assessed by two independent methods.Márcia Soares-Mota Tianny A Silva Luanda M Gomes Marco AS Pinto Laura MC Mendon?a Maria Lúcia F Farias Tiago Nunes Andrea Ramalho Cyrla Zaltman 2015World Journal of Gastroenterology2015,21,5:4
15β-defensins and the epididymis: contrasting influences of prenatal, postnatal, and adult scenarios显示文摘β -defensins 是主人防卫的部件,与抗菌剂和多种的免疫调节的性质。在最后 15 年的研究表明了许多 β 的丰富的表示;在不同种类的出生后的 epididymis 的 -defensins。这些蛋白质的区域特定、房间特定的表示的一个坡度在出生后的 epididymis 的上皮被观察。他们进到他们沿着 epididymis 旅行的精子的钠液体和绑定的分泌物在繁殖特定的任务建议了他们的参与。因此,连续注意被给了各种各样的 β为他们在精子功能和富饶的角色的 -defensins。尽管 β -defensins 大部分依赖于雄激素,在 epididymis 调整他们的表达式和函数的内在的机制很好没被理解。最近的调查指出了到在哪儿的一种新、有趣的情形 β ; -defensins 在 Wolffian 管与一个不同表示模式出现, epididymis 的胚胎的先锋与成年 epididymis 对比,从而有关 β 的多功能的角色重新定义这个概念;在发展中的 epididymis 的 -defensins 。在这评论,我们总结 β 的一些当前的看法;在在 prenatal-to-postnatal 转变期间在发展中的 epididymis 在他们的角色上加亮我们的最近的数据和推测的 epididymis 的 -defensins ,在可以贡献 epididymal 生物学和男富饶的更好的理解的这个研究区域把注意带到许多未答复的问题。Camilla M Ribeiro Erick JR Silva Barry T Hinton Maria Christina W Avellar 2016Asian Journal of Andrology2016,18,2:4
16Chronic myeloid leukemia-from the Philadelphia chromosome to specific target drugs:A literature review显示文摘Chronic myeloid leukemia(CML)is a myeloproliferative neoplasm and was the first neoplastic disease associated with a well-defined genotypic anomaly―the presence of the Philadelphia chromosome.The advances in cytogenetic and molecular assays are of great importance to the diagnosis,prognosis,treatment,and monitoring of CML.The discovery of the breakpoint cluster region(BCR)-Abelson murine leukemia(ABL)1 fusion oncogene has revolutionized the treatment of CML patients by allowing the development of targeted drugs that inhibit the tyrosine kinase activity of the BCR-ABL oncoprotein.Tyrosine kinase inhibitors(known as TKIs)are the standard therapy for CML and greatly increase the survival rates,despite adverse effects and the odds of residual disease after discontinuation of treatment.As therapeutic alternatives,the subsequent TKIs lead to faster and deeper molecular remissions;however,with the emergence of resistance to these drugs,immunotherapy appears as an alternative,which may have a cure potential in these patients.Against this background,this article aims at providing an overview on CML clinical management and a summary on the main targeted drugs available in that context.Mariana Miranda Sampaio Maria Luísa Cordeiro Santos Hanna Santos Marques Vinícius Lima de Souza Gonçalves Glauber Rocha Lima Araújo Luana Weber Lopes Jonathan Santos Apolonio Camilo Santana Silva Luana Kauany de SáSantos Beatriz Rocha Cuzzuol Quézia Estéfani Silva Guimarães Mariana Novaes Santos Breno Bittencourt de Brito Filipe Antônio França da Silva Márcio Vasconcelos Oliveira Cláudio Lima Souza Fabrício Freire de Melo 2021World Journal of Clinical Oncology2021,12,2:3
17Inflammatory bowel disease in an underdeveloped region of Northeastern Brazil显示文摘AIM: To evaluate the demographic characteristics and clinical phenotypes of inflammatory bowel disease(IBD) in a geographic area in Northeastern Brazil.METHODS: This retrospective study was conducted at the Hospital of the Federal University of Piauí in Northeastern Brazil. Demographic characteristics and clinical phenotypes of IBD were analyzed in relation to the time of diagnostic confirmation, which was defined as the date of disease onset. Data were collected between January 2011 and December 2012 and included all census patients 18 years of age or older during that period for whom there was diagnostic confirmation of Crohn's disease(CD), ulcerative colitis(UC), or unclassified colitis according to the Montreal criteria. We also analyzed the period of time between the onset of clinical manifestations and the diagnosis of IBD(delay in the diagnosis). Statistical analyses included means and standard deviations for numeric variables and the Pearson χ2 adherence test for nominal variables. The annual index occurrence and overall prevalence of IBD at our institution were also calculated, with P values < 0.05 indicating statistical significance. This study was approved by the Institutional Ethics and Research Committee.RESULTS: A total of 252 patients with IBD were included, including 152(60.3%) UC patients and 100(39.7%) CD patients. The clinical and demographic characteristics of all patients with IBD showed a female to male ratio of 1.3:1.0 and a mean age of35.2(SD = 14.5) years. In addition, the majority of patients were miscegenated(171, 67.9%), had received higher education(157, 62.4%), lived in urban areas(217, 86.1%), and were under the age of 40 years(97, 62.5%). For patients with CD, according to the Montreal classification, the predominant features present from the onset of disease were an age between 17 and 40 years(A2); colonic disease location(L2); and nonstricturing, nonfistulizing disease behavior(B1). However, approximately one-quarter of all CD patients demonstrated perineal involvement. We also observed considerable delay in the diagnosis of IBD throughout the entire study period(mean = 35.5 mo). In addition, the annual index occurrence rose from 0.08 to 1.53 cases/105 inhabitants/year during the study period, and the prevalence rate was 12.8 cases/105 inhabitants in 2012. Over the last two decades, there was a noted increase in the frequency of IBD in the study area.CONCLUSION: In this study, there was a predominance of patients with UC, young people under 40 years of age, individuals with racial miscegenation, and low annual incomes.José Miguel Luz Parente Claudio Saddy Rodrigues Coy Viriato Campelo Mírian Perpétua Palha Dias Parente Leonardo Araújo Costa Renata Mendes da Silva Celso Stephan José Murilo Robilotta Zeitune 2015World Journal of Gastroenterology2015,21,4:3
18Effectiveness of Helicobacter pylori eradication in the treatment of early-stage gastric mucosa-associated lymphoid tissue lymphoma:An up-to-date meta-analysis显示文摘BACKGROUND Gastric mucosa-associated lymphoid tissue(MALT)lymphoma(GML)is usually a low-grade B-cell neoplasia strongly associated with Helicobacter pylori(H.pylori)-induced chronic gastritis.Clinical practice guidelines currently recommend H.pylori eradication as the preferred initial treatment for early-stage GML.To determine the practical effect of bacterial eradication as the sole initial therapy for early-stage GML,an updated analysis and review of available evidence is imperative.AIM To perform a meta-analysis to assess the rate of complete remission(CR)of H.pylori-positive early-stage GML following bacterial eradication.METHODS We performed independent,computer-assisted literature searches using the PubMed/MEDLINE,Embase,and Cochrane Central databases through September 2022.Prospective and retrospective observational studies evaluating the CR of early-stage GML following bacterial eradication in H.pylori-positive patients.The risk of bias was assessed using Joanna Briggs Institute(JBI)Critical Appraisal Tools.The pooled estimate of the complete histopathological remission rate and respective confidence intervals(95%CI)were calculated following the random-effects model.Heterogeneity and inconsistency were assessed using Cochran’s Q test and I2 statistic,and heterogeneity was defined as P<0.01 and I²>50%,respectively.Subgroup and meta-regression analyses were conducted to explore potential sources of heterogeneity.RESULTS The titles and abstracts of 1576 studies were screened;96 articles were retrieved and selected for full-text reading.Finally,61 studies were included in the proportional meta-analysis(P-MA).Forty-six were prospective and fifteen were retrospective uncontrolled,single-arm,observational studies.The overall risk of bias was low to moderate in all but a single report,with an average critical appraisal score across all studies of 79.02%.A total of 2936 H.pylori-positive early-stage GML patients,in whom H.pylori was successfully eradicated,were included in the analysis.The pooled CR of H.pylori-positive early-stage GML after bacterial eradication was 75.18%(95%CI:70.45%-79.91%).P-MA indicated the substantial heterogeneity in CR reported across studies(I2=92%;P<0.01).Meta-regression analysis identified statistically significant effect modifiers,including the proportion of patients with t(11;18)(q21;q21)-positive GML and the risk of bias in each study.CONCLUSION Comprehensive synthesis of available evidence suggests that H.pylori eradication is effective as the sole initial therapy for early-stage GML.Although the substantial heterogeneity observed across studies limits the interpretation of the pooled overall CR,the present study is a relevant to informing clinical practice.Fabian Fellipe Bueno Lemos Caroline Tianeze de Castro Mariana Santos Calmon Marcel Silva Luz Samuel Luca Rocha Pinheiro Clara Faria Souza Mendes dos Santos Gabriel Lima Correa Santos Hanna Santos Marques Henrique Affonso Delgado Kádima Nayara Teixeira Cláudio Lima Souza Márcio Vasconcelos Oliveira Fabrício Freire de Melo 2023World Journal of Gastroenterology2023,29,14:2
19定期运动有助于改善高血压患者蛋白质稳态、炎症和血管活性显示文摘体育锻炼是一种公认的非药物控制血压的策略,除了降低血压外,运动还能对高血压患者的炎症特征、自主功能、内皮功能和抗氧化状态产生积极的影响。但其对高血压患者的蛋白质稳态的影响尚不清楚。已有动物研究表明,运动训练干预可以改善蛋白质质量控制机制,但在动物模型中报告的积极作用仍有待于在人类身上得到证实。本研究旨在根据报告的运动习惯,评估患高血压成年人的蛋白质稳态,生活质量以及炎症、氧化应激和血管活性生物标记物状态。Teixeira M Gouveia M Duarte A Ferreira M Simões MI Conceição M Silva G Magalhães S Ferreira R Nunes A Vieira SI Ribeiro F 周卫(译) 叶鹏(审校) 2020中华高血压杂志2020,28,12:2
20Role of nickel-regulated small RNA in modulation of Helicobacter pylori virulence factors显示文摘Helicobacter pylori(H.pylori)is a Gram-negative bacterium that infects about half of the world's population.H.pylori infection prevails by several mechanisms of adaptation of the bacteria and by its virulence factors including the cytotoxin associated antigen A(CagA).CagA is an oncoprotein that is the protagonist of gastric carcinogenesis associated with prolonged H.pylori infection.In this sense,small regulatory RNAs(sRNAs)are important macromolecules capable of inhibiting and activating gene expression.This function allows sRNAs to act in adjusting to unstable environmental conditions and in responding to cellular stresses in bacterial infections.Recent discoveries have shown that nickelregulated small RNA(NikS)is a post-transcriptional regulator of virulence properties of H.pylori,including the oncoprotein CagA.Notably,high concentrations of nickel cause the reduction of NikS expression and consequently this increases the levels of CagA.In addition,NikS expression appears to be lower in clinical isolates from patients with gastric cancer when compared to patients without.With that in mind,this minireview approaches,in an accessible way,the most important and current aspects about the role of NikS in the control of virulence factors of H.pylori and the potential clinical repercussions of this modulation.Fabrício Freire de Melo Hanna Santos Marques Fabian Fellipe Bueno Lemos Marcel Silva Luz Samuel Luca Rocha Pinheiro Lorena Sousa de Carvalho Cláudio Lima Souza Márcio Vasconcelos Oliveira 2022World Journal of Clinical Cases2022,10,31:2
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