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Association between Helicobacter pylori infection,mismatch repair,HER2 and tumor-infiltrating lymphocytes in gastric cancer

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2487-2503页

作者： Carlos A Castaneda Miluska Castillo Luis A Bernabe Joselyn Sanchez Matteo Fassan Katherine Tello Ignacio Ivan Wistuba Ivan Chavez Passiuri Eloy Ruiz Juvenal Sanchez Fernando Barreda Daniel Valdivia Yaqueline Bazan Milagros Abad-Licham Claudio Mengoa Hugo Fuentes Paola Montenegro Ebert Poquioma Raul Alatrista Claudio J Flores Luis Taxa Faculty of Health Sciences Universidad Cientifica del SurLima 15038Peru GECO PERU Grupo de Estudios Clinicos Oncologicos del PeruLima 15038Peru department of Research Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Faculty of Human Medicine Universidad Ricardo PalmaLima 15039Peru department of Medicine Surgical Pathology&Cytopathology UnitUniversity of PaduaPadua 35121Italy department of Translational Molecular Pathology The University of Texas MD Anderson Cancer CenterHoustonTX 77030United States department of Abdominal Surgery Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru department of Pathology Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru department of Medical Specialties Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru department of Pathology Instituto Regional de Enfermedades Neoplasicas del NorteTrujillo 13001Peru Faculty of Human Medicine Universidad Privada Antenor OrregoTrujillo 13008Peru department of Surgery Instituto Regional de Enfermedades Neoplasicas del SurArequipa 04002Peru department of Medical Oncology Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru department of Epidemiology Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru unidad de Investigación Básica y Traslacional Oncosalud-AUNALima 15038Peru Faculty of Medicine Universidad San Martin de PorresLima 15008Peru

BACKGROUND The influence of Helicobacter-pylori(***)infection and the characteristics of gastric cancer(GC)on tumor-infiltrating lymphocyte(TIL)levels has not been extensively *** of infiltrating-immune-cell subtypes as well as survival is necessary to obtain comprehensive *** To determine the rates of deficient mismatch-repair(dMMR),HER2-status and *** infection and their association with TIL levels in *** Samples from 503 resected GC tumors were included and TIL levels were evaluated following the international-TILs-working-group recommendations with assessment of the intratumoral(IT),stromal(ST)and invasive-border(IB)*** density of CD3,CD8 and CD163 immune cells,and dMMR and HER2-status were determined by immunohistochemistry(IHC).*** infection was evaluated by routine histology and quantitative PCR(qPCR)in a subset of *** dMMR was found in 34.4%,HER2+in 5%and ***-positive in 55.7%of *** IT-TIL was associated with grade-3(P=0.038),while ST-TIL with grade-1(Pdensity in the IT and ST compartments(P=0.001)when assessed by qPCR.A longer overall survival was associated with low IT-CD163(P=0.003)and CD8/CD3(P=0.001 in IT and P=0.002 in ST)and high IT-CD3(P=0.021),ST-CD3(P=0.003)and CD3/CD163(P=0.002).CONCLUSION TIL levels were related to dMMR and *** CD8/CD3 and high CD163/CD3 were associated with lower recurrence and longer survival.

关键词： Lymphocytes Macrophages Gastric cancer Helicobacter pylori HER2 Mismatch repair

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The Iberian Roma Population Variant Server(IRPVS)

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Journal of Genetics and Genomics 2024年第7期51卷 769-773页

作者： Fabiola Mavillard Javier Perez-Florido Francisco M.Ortuño Amador Valladares Miren L.Álvarez-Villegas Gema Roldán Rosario Carmona Manuel Soriano Santiago Susarte Pilar Fuentes Daniel López-López Ana María Nuñez-Negrillo Alejandra Carvajal Yolanda Morgado Daniel Arteaga Rosa Ufano Pablo Mir Juan F.Gamella Joaquín Dopazo Carmen Paradas Macarena Cabrera-Serrano Instituto de Biomedicina de Sevilla(IBiS) Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain Centro Investigación Biomédica en Red enfermedades Neurodegenerativas(CIBERNED) Instituto de Salud CarlosⅢSevillaSpain Plataforma Andaluza de Medicina Computacional Fundación Progreso y Salud(FPS)Hospital Virgen del RocíoSevillaSpain Grupo de medicina computacional de sistemas Instituto de Biomedicina de Sevilla(IBiS)Hospital Virgen del RocíoSevillaSpain Nodo de Genómica Funcional (INB-ELIXIR-es)Fundación Progreso y Salud(FPS)Hospital Virgen del RocíoSevilla 41013Spain Bioinformática en enfermedades raras(BiER) Centro de Investigación Biomédica en Red de Enfermedades Raras(CIBERER)Instituto de salud CarlosⅢSevillaSpain departamento de Ingeniería de Computadores Automática y RobóticaUniversidad de GranadaGranadaSpain Servicio de Urgencias de Atención Primaria Distrito SevillaSevillaSpain Centro de Servicios Sociales Negociado de Servicios EspecializadosAyuntamiento de SevillaSevillaSpain departamento de Enfermería Facultad de Ciencias de la SaludUniversidad de GranadaGranadaSpain departamento de Neurología Hospital Virgen de las NievesGranadaSpain departamento de Neurología Hospital Virgen de ValmeSevillaSpain Centro de Salud Utrera Sur SevillaSpain Centro de Salud Polígono Sur SevillaSpain unidad de Trastornos del Movimiento Servicio de Neurología y Neurofisiología ClínicaHospital Universitario Virgen del RocíoSevillaSpain departamento de Medicina Facultad de MedicinaUniversidad de SevillaSevilleSpain departamento de Antropología Social Universidad de GranadaSpain unidad enfermedades Neuromusculares Servicio de Neurología y Neurofisiología ClínicaHospital Universitario Virgen del RocíoSevillaSpain

In recent years,the number of known disease genes has exponentially grown due to the widespread adoption of cost-effective massive parallel *** identify new disease variants,especially in monogenic disorders,a frequen... 详细信息

关键词： Server filtering massive

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Impact of STAT-signaling pathway on cancer-associated fibroblasts in colorectal cancer and its role in immunosuppression

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 1705-1724页

作者： Damián Sánchez-Ramírez Mónica G Mendoza-Rodríguez Omar R Alemán Fernando A Candanedo-González Miriam Rodríguez-Sosa Juan JoséMontesinos-Montesinos Mauricio Salcedo Ismael Brito-Toledo Felipe Vaca-Paniagua Luis I Terrazas unidad de Investigacion en Biomedicina Facultad de Estudios Superiores IztacalaUniversidad Nacional Autonoma de MexicoTlalnepantla 54090Estado de MexicoMexico department of Biology Facultad de QuimicaUniversidad Nacional Autonoma de MexicoCiudad UniversitariaMexico City 04510Mexico department of Pathology National Medical Center Century XXIInstituto Mexicano del Seguro SocialMexico City 06720Mexico Laboratorio de Células Troncales Mesenquimales Unidad de Investigación Médica en Enfermedades OncológicasHospital de Oncología Centro Medico Nacional Siglo XXIInstituto Mexicano del Seguro SocialMexico City 06720Mexico unidad de Investigacion en Biomedicina y Oncologia Genomica Instituto Mexciano del Seguro SocialMexico City 07300Mexico Servicio de Colon y Recto Hospital de Oncología Centro Medico Nacional Siglo XXIInstituto Mexicano del Seguro SocialMexico City 06720Mexico Laboratorio Nacional en Salud Facultad de Estudios Superiores IztacalaUniversidad Nacional Autónoma de MéxicoTlalnepantla 54090Estado de MexicoMexico

Colorectal cancer(CRC)remains one of the most commonly diagnosed and deadliest types of cancer *** displays a desmoplastic reaction(DR)that has been inversely associated with poor prognosis;less DR is associated with a better *** reaction generates excessive connective tissue,in which cancer-associated fibroblasts(CAFs)are critical cells that form a part of the tumor *** are directly involved in tumorigenesis through different ***,their role in immunosuppression in CRC is not well understood,and the precise role of signal transducers and activators of transcription(STATs)in mediating CAF activity in CRC remains *** the myriad chemical and biological factors that affect CAFs,different cytokines mediate their function by activating STAT signaling ***,the harmful effects of CAFs in favoring tumor growth and invasion may be modulated using STAT ***,we analyze the impact of different STATs on CAF activity and their immunoregulatory role.

关键词： Cancer-associated fibroblasts Signal transducer and activator of transcription signaling Colorectal cancer Immunity Immunosuppression

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Multi-tissue transcriptomics of a unique monozygotic discordant twin case of severe progressive osseous heteroplasia

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Genes & Diseases 2024年第3期11卷 22-25页

作者： Alberto Gomez-Carballa Maria Jose Curras-Tuala Sara Pischedda Miriam Cebey-Lopez Jose Gomez-Rial Irene Rivero-Cale Jacobo Pardo-seco Xabier Bello Sandra Viz-Lasheras Antonio Justicia-Grande Julian Montoto-Louzao Alba Camino-Mera Isabel Ferreiros-Vidal Maximo Fraga Jose RAntunez Rodolfo Gomez Federico Martinon-Torres Antonio Salas Genetics Vaccines and Infections Research Group(GENVIP)Instituto de Investigacion Sanitaria de SantiagoSantiagode CompostelaGalicia 15706Spain Translational Pediatrics and Infectious Diseases Department of PediatricsHospital Clinico Universitario de Santiago de CompostelaServicio Galego de Saude(SERGAS)Galicia 15706Spain Laboratorio de Inmunologia Servicio de Andlisis ClinicosHospital Clinico Universitario de Santiago de CompostelaServicio Galego de Saude(SERGAS)Galicia 15706Spain unidade de Xenetica Instituto de Ciencias Forenses(INCIFOR)Facultade de MedicinaUniversidade de Santiago de Compostelaand GenPoB Research GroupInstituto de Investigacion SanitariaHospital Clinico Universitario de Santiago de CompostelaServicio Galego de Saude(SERGAS)Galicia 15706Spain Musculoskeletal Pathology Group Instituto de Investigacion Sanitaria de SantiagoServicio Galego de Saude(SERGAS)Santiago de CompostelaGalicia 15706Spain department of Pathology Hospital Clinico Universitario de Santiago de Compostela(SERGAS)Galicia 15706Spain Unidad Integrada de BiobancosBiomodelos 3D y Modelos Animales IDIS(lnstituto de Investigacion Sanitaria de Santiagode Compostela)Galicia15706Spain Centro de Investigacion Biomedica en Red de enfermedades Respiratorias(CIBER-ES) MadridSpain

Progressive osseous heteroplasia(POH)is an ultra-rare autosomal dominant disabling disorder characterized by heterotopic ossification(HO).It is caused by heterozygous inactivating mutations in the GNAS(guanine nucleotide-binding protein alpha-stimulating activity polypeptide)***,the molecular mechanisms underlying HO remain poorly *** a treatment for POH is not yet available,the identification of the mechanisms driving POH in affected tissues using gene expression may be of great help to underestand the molecular basis of POH and develop new therapeutic approaches.

关键词： stimulating driving asi

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Expectations and Level of Satisfaction of the Patient with Parkinson’s Disease Undergoing deep Brain Stimulation Surgery at the National Institute of Neurology and Neurosurgery

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Advances in Parkinson's Disease 2024年第1期13卷 1-7页

作者： Paola Bazán-Rodríguez Eduardo Ichikawa-Escamilla Etienne Reséndiz-Henríquez Carlos E. Martínez-Cortés Amin Cervantes-Arriaga Mayela Rodríguez-Violante Lisette Bazán-Rodríguez Laboratorio de enfermedades Neurodegenerativas en el Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suarez Ciudad de México México Laboratorio de enfermedades Neurodegenerativas en el Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suarez Ciudad de México México. unidad Periférica para el Estudio de la Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en el Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suarez Ciudad de México México

Background: deep brain stimulation (DBS) is an established treatment for patients with advanced Parkinson’s disease (PD). Reports show continued patient satisfaction after surgery despite not maintaining clinical improvement as measured by evolution scales. Objectives: The present study sought to explore expectations and level of satisfaction in patients after DBS surgery with a semi-structured questionnaire and subsequent correlation with functional scales, Quality of Life (QoL), and motor and non-motor symptoms. Methods: We performed descriptive statistics to represent demographic data, Wilcoxon rank tests to determine significant differences, and Spearman correlation between the applied scales. Results: We evaluated 20 patients with a history of DBS surgery. 45% were female, with a mean age of 55.7 ± 14.15 years, a mean disease duration of 13.42 ± 8.3 years, and a mean time after surgery of 3.18 ± 1.86 years. Patients reported surgery meeting expectations in 85.5% and continued satisfaction in 92%. These two variables showed a significant correlation. Conclusions: This sample of patients remained satisfied after DBS surgery, although we found no differences in motor and non-motor clinimetric scales. Further studies are needed to confirm the importance of assessing quality of life in patients with DBS.

关键词： Parkinson’s Disease Quality of Life deep Brain Stimulation Patient Satisfaction

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Physiological effects of amyloid precursor protein and its derivatives on neural stem cell biology and signaling pathways involved

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Neural Regeneration Research 2019年第10期14卷 1661-1671页

作者： Raquel Coronel Charlotte Palmer Adela Bernabeu-Zornoza María Monteagudo Andreea Rosca Alberto Zambrano Isabel Liste unidad de Regeneración Neural Unidad Funcional de Investigación de Enfermedades Crónicas Instituto de Salud Carlos Ⅲ (ISCⅢ)

The pathological implication of amyloid precursor protein(APP)in Alzheimer’s disease has been widely documented due to its involvement in the generation of amyloid-β ***,the physiological functions of APP are still poorly *** is considered a multimodal protein due to its role in a wide variety of processes,both in the embryo and in the adult ***,APP seems to play a key role in the proliferation,differentiation and maturation of neural stem *** addition,APP can be processed through two canonical processing pathways,generating different functionally active fragments:soluble APP-α,soluble APP-β,amyloid-β peptide and the APP intracellular C-terminal *** fragments also appear to modulate various functions in neural stem cells,including the processes of proliferation,neurogenesis,gliogenesis or cell ***,the molecular mechanisms involved in these effects are still *** this review,we summarize the physiological functions of APP and its main proteolytic derivatives in neural stem cells,as well as the possible signaling pathways that could be implicated in these *** knowledge of these functions and signaling pathways involved in the onset or during the development of Alzheimer’s disease is essential to advance the understanding of the pathogenesis of Alzheimer’s disease,and in the search for potential therapeutic targets.

关键词： amyloid precursor protein APP soluble APP alpha soluble APP beta amyloid beta peptide APP intracellular domain neural stem cells neural progenitor cells neurogenesis signaling pathways

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Physiological and pathological effects of amyloid-β species in neural stem cell biology

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Neural Regeneration Research 2019年第12期14卷 2035-2042页

作者： Adela Bernabeu-Zornoza Raquel Coronel Charlotte Palmer María Monteagudo Alberto Zambrano Isabel Liste unidad de Regeneración Neural Unidad Funcional de Investigación de Enfermedades Crónicas. Instituto de Salud Carlos Ⅲ(ISCⅢ) Majadahonda Madrid Spain

Although amyloid-β peptide is considered neurotoxic, it may mediate several physiological processes during embryonic development and in the adult brain. The pathological function of amyloid-β peptide has been extensively studied due to its implication in Alzheimer’s disease, but its physiological function remains poorly understood. Amyloid-β peptide can be detected in non-aggregated (monomeric) and aggregated (oligomeric and fibrillary) forms. Each form has different cytotoxic and/or physiological properties, so amyloid-β peptide and its role in Alzheimer’s disease need to be studied further. Neural stem cells and neural precursor cells are good tools for the study on neurodegenerative diseases and can provide future therapeutic applications in diseases such as Alzheimer’s disease. In this review, we provide an outline of the effects of amyloid-β peptide, in monomeric and aggregated forms, on the biology of neural stem cells/neural precursor cells, and discuss the controversies. We also describe the possible molecular targets that could be implicated in these effects, especially GSK3β. A better understanding of amyloid-β peptide (both physiological and pathological), and the signaling pathways involved are essential to advance the field of Alzheimer’s disease.

关键词： amyloid-β peptide Aβ neural stem cells neural progenitor cells Alzheimer's disease amyloid precursor protein toxicity neurogenesis gliogenesis GSK3β

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Occult hepatitis B virus infection among Mexican human immunodeficiency virus-1-infected patients

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World Journal of Gastroenterology 2014年第37期20卷 13530-13537页

作者： Ma Teresa Alvarez-Muoz Angelica Maldonado-Rodriguez Othon Rojas-Montes Rocio Torres-Ibarra Fernanda Gutierrez-Escolano Guillermo Vazquez-Rosales Alejandro Gomez Onofre Muoz Javier Torres Rosalia Lira unidad de Investigacion Medica en enfermedades infecciosas y Parasitarias Hospital de PediatriaCentro Medico Nacional Siglo XXIInstituto Mexicano del Seguro Social Clinica de Hepatitis Hospital de Infectologia Centro Médico Nacional La Raza Hospital General Regional No.72 IMSS unidad de Investigacion Medica en enfermedades infecciosas y Parasitarias Hospital de PediatriaCentro Medico Nacional Siglo XXIInstituto Mexi-cano del Seguro Social Hospital Infantil de Mexico "Federico Gomez"

AIM: To determine the frequency of occult hepatitis B infection (OHBI) in a group of human immunodeficiency virus (HIV)-1+/ hepatitis B surface antigen negative (HBsAg)- patients from Mexico.

关键词： Hepatitis B virus Occult hepatitis B virus infection Human immunodeficiency virus Hepatitis B surface antigen negative Risk factors Molecular diagnostics

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Exploring alternative treatments for Helicobacter pylori infection

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World Journal of Gastroenterology 2014年第6期20卷 1450-1469页

作者： Guadalupe Ayala Wendy Itzel Escobedo-Hinojosa Carlos Felipe de la Cruz-Herrera Irma Romero Centro de Investigación sobre enfermedades infecciosas Instituto Nacional de Salud Pública INSP departamen-to de Bioquímica Facultad de Medicina Universidad Nacional Autónoma de México

Helicobacter pylori(H. pylori) is a successful pathogen that can persist in the stomach of an infected person for their entire life. It provokes chronic gastric inflammation that leads to the development of serious gastric diseases such as peptic ulcers, gastric cancer and Mucosa associated lymphoid tissue lymphoma. It is known that these ailments can be avoided if the infection by the bacteria can be prevented or eradicated. Currently, numerous antibiotic-based therapies are available. However, these therapies have several inherent problems, including the appearance of resistance to the antibiotics used and associated adverse effects, the risk of re-infection and the high cost of antibiotic therapy. The delay in developing a vaccine to prevent or eradicate the infection has furthered research into new therapeutic approaches. This review summarises the most relevant recent studies on vaccine development and new treatments using natural resources such as plants, probiotics and nutraceuticals. In addition, novel alternatives based on microorganisms, peptides, polysaccharides, and intragastric violet light irradiation are presented. Alternative therapies have not been effective in eradicating the bacteria but have been shown to maintain low bacterial levels. Nevertheless, some of them are useful in preventing the adverse effects of antibiotics, modulating the immune response, gastroprotection, and the general promotion of health. Therefore, those agents can be used as adjuvants of allopathic anti-H. pylori eradication therapy.

关键词： Helicobacter pylori Treatment Natural products Probiotics Nutraceuticals

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Vigorous,but differential mononuclear cell response of cirrhotic patients to bacterial ligands

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World Journal of Gastroenterology 2011年第10期17卷 1317-1325页

作者： Varenka J Barbero-Becerra María Concepción Gutiérrez-Ruiz Carmen Maldonado-Bernal Félix I Téllez-Avila Roberto Alfaro-Lara Florencia Vargas-Vorácková department of Gastroenterology Instituto Nacional de Ciencias Médicasy Nutrición Salvador Zubirán Laboratorio de Fisiología Celular División de Ciencias de la Salud Universidad Autónoma Metropolitana-Iztapalapa unidad de Investigación Médica en enfermedades infecciosasy Parasitarias Hospital de Pediatría unidad de Investigación en enfermedades Oncológicas Hospital Infantil de México Federico Gómez

AIM： To study the role of gram-positive and gram-negative bacteria in the pathogenesis of liver injury, specifically the activation of inflammatory mediators. METHODS： Peripheral blood mononuclear cells of 20 out-patients were studied, 10 of them with cirrhosis,Peripheral blood mononuclear cells were isolated and exposed to lipopolysaccharide or lipoteichoic acid. CD14, Toll-like receptor 2 and 4 expression was determined by flow cytometry, and tumor necrosis factor （TNF） α, interleukin （1L）-1β, IL-6, IL-12 and IL-10 secretion in su- pernatants was determined by ELISA. RESULTS： Higher CD14, Toll-like receptor 2 and 4 expression was observed in peripheral blood mononudear cells from cirrhotic patients, （P 〈 0.01, P 〈 0.006, P 〈 0.111） respectively. Lipopolysaccharide and lipoteichoic acid induced a further increase in CD14 expression （P 〈 0.111 lipopolysaccharide, P 〈 0.013 lipoteichoic acid）, and a decrease in Toll-like receptor 2 （P 〈 0.008 lipopolysaccharide, P 〈 0.008 lipoteichoic acid） and Toll-like receptor 4 （P 〈 0.008 lipopolysaccharide, P 〈 0.028 li- poteichoic acid） expression. With the exception of TNFα, absolute cytokine secretion of peripheral blood mononuclear cells was lower in cirrhotic patients under nonexposure conditions （P 〈 0.070 IL-6, P 〈 0.009 IL-1]5, P 〈 0.022 IL-12）. Once exposed to lipopolysaccharide or lipoteichoic acid, absolute cytokine secretion of peripheral blood mononuclear cells was similar in cirrhotic and non-cirrhotic patients, determining a more vigorous response in the former （P 〈 0.005 TNFα, IL-1β, IL-6, IL-2 and IL-10 lipopolysaccharide; P 〈 0.037 TNFα; P 〈 0.006 IL-113; P 〈 0.005 IL-6; P 〈 0.007 IL-12; P 〈 0.014 IL-10 lipoteichoic acid）. Response of peripheral blood mononuclear cells was more intense after lipopolysaccharide than after lipoteichoic acid exposure. CONCLUSION： Peripheral blood mononuclear cells of cirrhotic patients are able to respond to a sudden bacterial ligand exposure, particularly lipopolysaccharide, sugg

关键词： Liver cirrhosis Toll-like receptors Cytokines Lipopolysaccharide Lipoteichoic acid

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