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| 1 | Mesenchymal stem cell-derived exosomes promote neurogenesis and cognitive function recovery in a mouse model of Alzheimer’s disease显示文摘Studies have shown that mesenchymal stem cell-derived exosomes can enhance neural plasticity and improve cognitive impairment.The purpose of this study was to investigate the effects of mesenchymal stem cell-derived exosomes on neurogenesis and cognitive capacity in a mouse model of Alzheimer’s disease.Alzheimer’s disease mouse models were established by injection of beta amyloid 1?42 aggregates into dentate gyrus bilaterally.Morris water maze and novel object recognition tests were performed to evaluate mouse cognitive deficits at 14 and 28 days after administration.Afterwards,neurogenesis in the subventricular zone was determined by immunofluorescence using doublecortin and PSA-NCAM antibodies.Results showed that mesenchymal stem cells-derived exosomes stimulated neurogenesis in the subventricular zone and alleviated beta amyloid 1?42-induced cognitive impairment,and these effects are similar to those shown in the mesenchymal stem cells.These findings provide evidence to validate the possibility of developing cell-free therapeutic strategies for Alzheimer’s disease.All procedures and experiments were approved by Institutional Animal Care and Use Committee(CICUAL)(approval No.CICUAL 2016-011)on April 25,2016. | Edwin E. Reza-Zaldivar Mercedes A. Hernández-Sapiéns Yanet K. Gutiérrez-Mercado Sergio Sandoval-ávila Ulises Gomez-Pinedo Ana L. Márquez-Aguirre Estefanía Vázquez-Méndez Eduardo Padilla-Camberos Alejandro A. Canales-Aguirre | 2019 | Neural Regeneration Research2019，14，9： | 19 |
| 2 | Helicobacter pylori CagA protein polymorphisms and their lack of association with pathogenesis显示文摘AIM: To investigate Helicobacter pylori (H. pylori) CagA diversity and to evaluate the association between protein polymorphisms and the occurrence of gastric pathologies. METHODS: One hundred and twenty-two clinical isolates of H. pylori cultured from gastric biopsies obtained from Colombian patients with dyspepsia were included as study material. DNA extracted from isolates was used to determine cagA status, amplifying the C-terminal cagA gene region by polymerase chain reaction. One hundred and six strains with a single amplicon were sequenced and results were used to characterize the 3' variable region of the cagA gene. To establish the number and type of tyrosine phosphorylation motifs Glutamine acid-Proline-Isoleucine-Tyrosine-Alanine (EPI-YA) bioinformatic analysis using Amino Acid Sequence Analyzer-Amino Acid Sequence Analyzer software was conducted. Analysis of the association between the number of EPIYA motifs and the gastric pathology was performed using χ2 test and analysis of the presence of EPIYA-C motifs in relation to the pathology was made by logistic regression odds ratios. Comparisons among EPIYA types found and those reported in GenBank were performed using a proportion test in Statistix Analytical Software version 8.0. RESULTS: After amplification of the 3' of the cagA gene, 106 from 122 isolates presented a single amplicon and 16 showed multiple amplicons. As expected, diversity in the size of the cagA unique fragments among isolates was observed. The 106 strains that presented a single amplicon after 3' cagA amplification came from patients with gastritis (19 patients), atrophic gastritis (21), intestinal metaplasia (26), duodenal ulcer (22) and gastric cancer. DNA sequence analysis showed that the differences in size of 3' cagA unique fragments was attributable to the number of EPIYA motifs: 1.9% had two EPIYA motifs, 62.3% had three, 33.0% had four and 2.8% had five motifs. The majority of tested clinical strains (62.3%) were found to harbor the ABC combination of EPIYA motifs and a significant statistical difference was observed between the frequencies of ABCC tyrosine phosphorylation motifs and Western strains sequences deposited in GenBank. CONCLUSION: The present report describes a lack of association between H. pylori CagA-protein polymorphisms and pathogenesis. ABCC high frequency variations compared with Western-strains sequences deposited in GenBank require more investigation. | Nicole Acosta Andrés Quiroga Pilar Delgado María Mercedes Bravo Carlos Jaramillo | 2010 | World Journal of Gastroenterology2010，16，31： | 5 |
| 3 | CagA EPIYA polymorphisms in Colombian Helicobacter pylori strains and their influence on disease-associated cellular responses显示文摘AIM: To investigate the influence of the CagA diversity in Helicobacter pylori (H. pylori ) strains from Colombia on the host cell biology. METHODS: Eighty-four H. pylori-cagA positive strains with different Glu-Pro-Ile-Tyr-Ala (EPIYA) motifs patterns, isolated from patients with gastritis (n=17), atrophic gastritis (n=17), duodenal ulcer (n=16), intestinal metaplasia (n=16) and gastric cancer (n=18), were included. To determine the integrity of the cag pathogenicity island (cag PAI) we evaluated the presence of cagA, cagT, cagE, and cag10 genes by polymerase chain reaction. AGS gastric epithelial cellswere infected with each strain and assayed for translo-cation and tyrosine phosphorylation of CagA by western blot, secretion of interleukin-8 (IL-8) by enzyme-linked immuno sorbent assay after taking supernatants from cocultures and cell elongation induction. For cell elongation quantification, coculture photographs were taken and the proportion of 'hummingbird' cells (>15 μm) was determined. RESULTS: Overall 72% (60/84) of the strains were found to harbor a functional cag PAI. Levels of phos-phorylated CagA were significantly higher for isolates from duodenal ulcer than the ones in strains from gas-tritis, atrophic gastritis, intestinal metaplasia and gastric cancer (49.1% ± 23.1% vs 21.1% ± 19.5%, P < 0.02; 49.1% ± 23.1% vs 26.2%±14.8%, P<0.045; 49.1% ± 23.1% vs 21.5% ± 19.5%, P<0.043 and 49.1% ± 23.1% vs 29.5% ± 27.1%, P < 0.047 respectively). We observed variable IL-8 expression levels ranging from 0 to 810 pg/mL and from 8.8 to 1442 pg/mL at 6 h and 30 h post-infection, respectively. cagPAI-defective strains did not induce detectable levels of IL-8 at 6 h post-infection. At 30 h post-infection all strains induced IL-8 expression in AGS cells, although cagPAI-defective strains induced significantly lower levels of IL-8 than strains with a functional cagPAI (57.1 ± 56.6 pg/mL vs 513.6 ± 338.6 pg/mL,P < 0.0001). We did not observe differences in the extent of cell elongation induction between strains with a functional or a defective cagPAI in 6 h cocultures. At 24 h post infection strains with functionalcagPAI showed high diversity in the extent of hummingbird phenotype induction ranging from 7% to 34%. cag PAI defective strains induced significantly lower levels of elongation than strains with functional cag-PAI with one or more than one EPIYA-C motif (15.1% ± 5.2%vs 18.9% ± 4.7%,P < 0.03; and 15.1% ± 5.2% vs 20.0% ± 5.1%, P < 0.003 respectively). No differences were observed in cellular elongation inductionor IL-8 expression among H. pylori strains bearing one and more than one EPIYA-C motifs, neither at 6 h nor at 24 h of coculture. There were no associations between the levels of induction of cell elongation or IL-8 expression and number of EPIYA motifs or pathology. CONCLUSION: The present work describes a lack of association between H. pylori CagA protein EPIYA motifs variations from Colombian isolates and disease-associated cellular responses. | Carlos Alberto Fajardo Andrés Javier Quiroga Andrea Coronado Karen Labrador Nicole Acosta Pilar Delgado Carlos Jaramillo María Mercedes Bravo | 2013 | World Journal of Gastrointestinal Oncology2013，5，3： | 3 |
| 4 | Functional Heterogeneity of Cancer-Associated Fibroblasts from Human Colon Tumors Shows Specific Prognostic Gene Expression Signature显示文摘 | Mercedes Herrera Abul B.M.M.K. Islam Alberto Herrera Paloma Martín Vanesa García Javier Silva Jose M. Garcia Clara Salas Ignacio Casal Antonio García de Herreros Félix Bonilla Cristina Pe?a | 2013 | Clinical Cancer Research2013，，21： | 2 |
| 5 | 14-day triple, 5-day concomitant, and 10-day sequential therapies for Helicobacter pylori infection in seven Latin American sites: a randomised trial显示文摘 | E Robert Greenberg Garnet L Anderson Douglas R Morgan Javier Torres William D Chey Luis Eduardo Bravo Ricardo L Dominguez Catterina Ferreccio Rolando Herrero Eduardo C Lazcano-Ponce María Mercedes Meza-Montenegro Rodolfo Pe?a Edgar M Pe?a Eduardo Salazar- | 2011 | The Lancet2011，，9790： | 2 |
| 6 | Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection显示文摘Severe Acute Respiratory Syndrome Coronavirus(SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components.Dendritic cells(DCs)play a key role in the defense against viral infections,for instance plasmacytoid DCs(pDCs),have the capacity to produce vast amounts of interferon-alpha(IFN-α).In COVID-19 there is a deficit in DC numbers and IFN-αproduction,which has been associated with disease severity.In this work,we described that in addition to the DC deficiency,several DC activation and homing markers were altered in acute COVID-19 patients,which were associated with multiple inflammatory markers.Remarkably,previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+myeloid DCs and pDCs seven months after SARS-CoV-2 infection.Moreover,the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients,while no restoration of integrinβ7 and indoleamine 2,3-dyoxigenase(IDO)levels were observed.These findings contribute to a better understanding of the immunological sequelae of COVID-19. | Alberto Pérez-Gómez Joana Vitallé Carmen Gasca-Capote Alicia Gutierrez-Valencia María Trujillo-Rodriguez Ana Serna-Gallego Esperanza Muñoz-Muela María de los Reyes Jiménez-Leon Mohamed Rafii-El-Idrissi Benhnia Inmaculada Rivas-Jeremias Cesar Sotomayor Cristina Roca-Oporto Nuria Espinosa Carmen Infante-Domínguez Juan Carlos Crespo-Rivas Alberto Fernández-Villar Alexandre Pérez-González Luis Fernando López-Cortés Eva Poveda Ezequiel Ruiz-Mateos JoséMiguel Cisneros Sonsoles Salto-Alejandre Judith Berastegui-Cabrera Pedro Camacho-Martínez Carmen Infante-Domínguez Marta Carretero-Ledesma Juan Carlos Crespo-Rivas Eduardo Márquez JoséManuel Lomas Claudio Bueno Rosario Amaya JoséAntonio Lepe Jerónimo Pachón Elisa Cordero Javier Sánchez-Céspedes Manuela Aguilar-Guisado Almudena Aguilera Clara Aguilera Teresa Aldabo-Pallas Verónica Alfaro-Lara Cristina Amodeo Javier Ampuero María Dolores Avilés Maribel Asensio Bosco Barón-Franco Lydia Barrera-Pulido Rafael Bellido-Alba Máximo Bernabeu-Wittel Candela Caballero-Eraso Macarena Cabrera Enrique Calderón Jesús Carbajal-Guerrero Manuela Cid-Cumplido Yael Corcia-Palomo Juan Delgado Antonio Domínguez-Petit Alejandro Deniz Reginal Dusseck-Brutus Ana Escoresca-Ortega Fátima Espinosa Nuria Espinosa Michelle Espinoza Carmen Ferrándiz-Millón Marta Ferrer Teresa Ferrer Ignacio Gallego-Texeira Rosa Gámez-Mancera Emilio García Horacio García-Delgado Manuel García-Gutiérrez María Luisa Gascón-Castillo Aurora González-Estrada Demetrio González Carmen Gómez-González Rocío González-León Carmen Grande-Cabrerizo Sonia Gutiérrez Carlos Hernández-Quiles Inmaculada Concepción Herrera-Melero Marta Herrero-Romero Luis Jara Carlos Jiménez-Juan Silvia Jiménez-Jorge Mercedes Jiménez-Sánchez Julia Lanseros-Tenllado Carmina López Isabel López Álvaro López-Barrios Luis F.López-Cortés Rafael Luque-Márquez Daniel Macías-García Guillermo Martín-Gutiérrez Luis Martín-Villén JoséMolina Aurora Morillo María Dolores Navarro-Amuedo Dolores Nieto-Martín Francisco Ortega María Paniagua-García Amelia Peña-Rodríguez Esther Pérez Manuel Poyato Julia Praena-Segovia Rafaela Ríos Cristina Roca-Oporto Jesús F.Rodríguez María Jesús Rodríguez-Hernández Santiago Rodríguez-Suárez Ángel Rodríguez-Villodres Nieves Romero-Rodríguez Ricardo Ruiz Zida Ruiz de Azua Celia Salamanca Sonia Sánchez Víctor Manuel Sánchez-Montagut César Sotomayor Alejandro Suárez Benjumea Javier Toral | 2021 | Cellular & Molecular Immunology2021，18，9： | 2 |
| 7 | Model for end-stage liver disease-Na score or Maddrey discrimination function index, which score is best?显示文摘AIM: To compare the ability of model for end-stage liver disease(MELD)-Na and Maddrey discrimination function index(DFI) to predict mortality at 30 and 90 d in patients with alcoholic hepatitis(AH).METHODS: We prospectively assessed 52 patients with AH. Demographic, clinical and laboratory parameters were obtained. MELD-Na and Maddrey DFI were calculated on admission. Short-term mortality was assessed at 30 and 90 d. Receiver operating characteristic curve analysis was performed. RESULTS: Thirty-day and 90-d mortality was 44% and 58%, respectively. In the univariate analysis, sodium levels was associated with mortality at 30 and 90 d(P = 0.001 and P = 0.03). Child stage, encephalopathy, ascites, or types of treatment were not associated with mortality. MELD-Na was the only predictive factor for mortality at 90 d. For 30-d mortality area under the curve(AUC) was 0.763(95%CI: 0.63-0.89) for Maddrey DFI and 0.784 for MELD-Na(95%CI: 0.65-0.91, P = 0.82). For 90-d mortality AUC was 0.685(95%CI: 0.54-0.83) for Maddrey DFI and 0.8710 for MELD-Na(95%CI: 0.76-0.97, P = 0.041). CONCLUSION: AH is associated with high shortterm mortality. Our results show that MELD-Na is a more valuable model than DFI to predict short-term mortality. | Mercedes Amieva-Balmori Scherezada María Isabel Mejia-Loza Roberto Ramos-González Felipe Zamarripa-Dorsey Eli García-Ruiz Nuria Pérez y López Eumir I Juárez-Valdés Adriana López-Luria José María Remes-Troche | 2015 | World Journal of Hepatology2015，7，17： | 2 |
| 8 | Diagnostic laparoscopy and laparoscopic ultrasonography withlocal anesthesia in hepatocellular carcinoma显示文摘Diagnosis of hepatocellular carcinoma (HCC), a common digestive malignancy, remains a challenge. The aim of this study was to evaluate the feasibility of performing laparoscopy and laparoscopic ultrasound with local anesthesia as a diagnostic procedure in HCC. Laparoscopy and laparoscopic ultrasound with local anesthesia was performed in the gastrointestinal endoscopy unit in three patients diagnosed of HCC. Endoscopy staged diffuse liver disease. Laparoscopic ultrasonography identified all liver tumors not visible during endoscopy and guided needle biopsy in one case. No complications happened. In conclusion, laparoscopy and laparoscopic ultrasound,performed as a minimally invasive diagnostic procedure can be a safe and very promising tool in planning therapy of HCC. | Mariano Gómez-Rubio Mercedes Moya-Valdés Jesús García | 2005 | World Journal of Gastroenterology2005，11，26： | 2 |
| 9 | 羟基蛋氨酸螯合锰在肉仔鸡日粮中的应用效果显示文摘选用270只‘爱拔益加’(AA)雄性肉仔鸡,随机分成5组,每组设9个重复,每个重复6只鸡,分别饲喂玉米-豆粕基础日粮、60mg/kg硫酸锰日粮、基础日粮分别添加30、60、90mg/kg羟基蛋氨酸螯合锰日粮(试验组),试验期分为前期(0~3周)和后期(4~6周),研究了不同剂量羟基蛋氨酸鳌合锰对0~6周龄肉仔鸡生长性能、免疫力以及抗氧化能力的影响.结果表明:基础日粮中添加有机锰能够提高肉仔鸡饲料利用率,增强机体免疫力和抗氧化能力;日粮中有机锰水平与饲料利用率、胫骨锰含量、腹腔巨噬细胞吞噬指数和肝脏Mn-SOD酶活性呈一次线性关系,与新城疫抗体滴度呈二次曲线关系. | 马娅娅 Bun Sidoeun 刘丹 呙于明 曹宏 郭福存 郝正里 年芳 Mercedes V A | 2011 | 甘肃农业大学学报2011，46，4： | 2 |
| 10 | Non-alcoholic fatty liver disease in patients with intestinal, pulmonary or skin diseases: Inflammatory cross-talk that needs a multidisciplinary approach显示文摘Non-alcoholic fatty liver disease(NAFLD)is currently considered the most common cause of liver disease.Its prevalence is increasing in parallel with the obesity and type 2 diabetes mellitus(DM2)epidemics in developed countries.Several recent studies have suggested that NAFLD may be the hepatic manifestation of a systemic inflammatory metabolic disease that also affects other organs,such as intestine,lungs,skin and vascular endothelium.It appears that local and systemic proinflammatory/anti-inflammatory cytokine imbalance,together with insulin resistance and changes in the intestinal microbiota,are pathogenic mechanisms shared by NAFLD and other comorbidities.NAFLD is more common in patients with extrahepatic diseases such as inflammatory bowel disease(IBD),obstructive syndrome apnea(OSA)and psoriasis than in the general population.Furthermore,there is evidence that this association has a negative impact on the severity of liver lesions.Specific risk characteristics for NAFLD have been identified in populations with IBD(i.e.age,obesity,DM2,previous bowel surgery,IBD evolution time,methotrexate treatment),OSA(i.e.obesity,DM2,OSA severity,increased transaminases)and psoriasis(i.e.age,metabolic factors,severe psoriasis,arthropathy,elevated transaminases,methotrexate treatment).These specific phenotypes might be used by gastroenterologists,pneumologists and dermatologists to create screening algorithms for NAFLD.Such algorithms should include non-invasive markers of fibrosis used in NAFLD to select subjects for referral to the hepatologist.Prospective,controlled studies in NAFLD patients with extrahepatic comorbidities are required to demonstrate a causal relationship and also that appropriate multidisciplinary management improves these patients’prognosis and survival. | Mercedes Perez-Carreras Begoña Casis-Herce Raquel Rivera Inmaculada Fernandez Pilar Martinez-Montiel Victoria Villena | 2021 | World Journal of Gastroenterology2021，27，41： | 2 |
| 11 | E6 molecular variants of human papillomavirus (HPV) type 16: An updated and unified criterion for clustering and nomenclature显示文摘 | Antonio Huertas-Salgado Diana C. Martín-Gámez Pablo Moreno Raúl Murillo María Mercedes Bravo Luisa Villa Mónica Molano | 2010 | Virology2010，，： | 2 |
| 12 | Chronic intestinal pseudo-obstruction in patients with systemic lupus erythematosus: report of four cases显示文摘 | Federico Ceccato Adrián Salas Vanina Góngora Santiago Ruta Susana Roverano Juan Carlos Marcos Mercedes Garcìa Sergio Paira | 2008 | Clinical Rheumatology2008，，3： | 2 |
| 13 | Heart Disease and Stroke Statistics-2009 Update: A Report From the American Heart Association Statistics Committee and Stroke Statistics Subcommittee 显示文摘 | DONALD L J ROBERT A MERCEDES C | 2009 | Circulation2009，119，3： | 1 |
| 14 | Trial of complete weaning from immunosuppression for liver transplant recipients: Factors predictive of tolerance显示文摘 | Rocío García Garza Pablo Sarobe Juana Merino Juan J. Lasarte Delia D’Avola Virginia Belsue José A. Delgado Leyre Silva Mercedes I?arrairaegui Bruno Sangro Jesus J. Sola Fernando Pardo Jorge Quiroga J. Ignacio Herrero | 2013 | Liver Transpl2013，，9： | 1 |
| 15 | A set of keys for biochemical identification of environmental Vibrio Species显示文摘 | MERCEDES A ANICENT R B | 1994 | Journal of Applied Bacteriology1994，76，： | 1 |
| 16 | Harvest prediction in ' Algerie' loquat 显示文摘 | Juan J H Mercedes P Frartcisca A | 2007 | International Journal of Biometeorology2007，51，5： | 1 |
| 17 | A novel type of hydrogen-bonded assemblie based on the melamine, cyanuric acid motif显示文摘 | Maria A Mercedes C C Peter T | 2003 | J Org Chem2003，68，： | 1 |
| 18 | Nitrogen fertili- zation timing effect on wheat production, nitrogen uptake efficiency,and residual soil nitrogen显示文摘 | Mercedes M A Frank M H Vincont A H | 1993 | Agron J1993，85，： | 1 |
| 19 | Nitrogen fertili- zation timing effect on wheat production, nitrogen uptake efficiency, and residual soil 显示文摘 | Mercedes M A Frank M H Vincont A H | 1993 | Nitrogen Agron J1993，85，： | 1 |
| 20 | Direct olive oil authentication: Detection of adulteration of olive oil with hazelnut oil by direct coupling of headspace and mass spectrometry, and multivariate regression techniques显示文摘 | Fernando Pe?a Soledad Cárdenas Mercedes Gallego Miguel Valcárcel | 2005 | Journal of Chromatography A2005，，1： | 1 |
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