Search results for "Case-Control Studies"

showing 10 items of 1567 documents

Meta-analysis of mismatch repair polymorphisms within the cogent consortium for colorectal cancer susceptibility

2013

In the last four years, Genome-Wide Association Studies (GWAS) have identified sixteen low-penetrance polymorphisms on fourteen different loci associated with colorectal cancer (CRC). Due to the low risks conferred by known common variants, most of the 35% broad-sense heritability estimated by twin studies remains unexplained. Recently our group performed a case-control study for eight Single Nucleotide Polymorphisms (SNPs) in 4 CRC genes. The present investigation is a followup of that study. We have genotyped six SNPs that showed a positive association and carried out a meta-analysis based on eight additional studies comprising in total more than 8000 cases and 6000 controls. The estimate…

Linkage disequilibriumGenotypeReparació de l'ADNlcsh:MedicineDNA repairGenome-wide association studySingle-nucleotide polymorphismBiologyGenetic polymorphismsDNA Mismatch RepairPolymorphism Single NucleotideDNA Glycosylases03 medical and health sciences0302 clinical medicineMUTYHCàncer colorectalHumansGenetic Predisposition to Diseaselcsh:ScienceGenetic Association Studies030304 developmental biologyGenetic associationGenetics0303 health sciencesMultidisciplinaryGenetic heterogeneityPolimorfisme genèticlcsh:RCase-control studyOdds ratioColorectal cancer3. Good health030220 oncology & carcinogenesisCase-Control Studieslcsh:QColorectal NeoplasmsResearch Article
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Dense genotyping of immune-related disease regions identifies nine new risk loci for primary sclerosing cholangitis

2013

To access publisher's full text version of this article click on the hyperlink at the bottom of the page Primary sclerosing cholangitis (PSC) is a severe liver disease of unknown etiology leading to fibrotic destruction of the bile ducts and ultimately to the need for liver transplantation. We compared 3,789 PSC cases of European ancestry to 25,079 population controls across 130,422 SNPs genotyped using the Immunochip. We identified 12 genome-wide significant associations outside the human leukocyte antigen (HLA) complex, 9 of which were new, increasing the number of known PSC risk loci to 16. Despite comorbidity with inflammatory bowel disease (IBD) in 72% of the cases, 6 of the 12 loci sh…

Linkage disequilibriumHISTONE DEACETYLASEGenotyping Techniquesendocrine system diseasesGenome-wide association studyDiseaseBioinformaticsLinkage Disequilibrium0302 clinical medicineGene FrequencyRisk FactorsOligonucleotide Array Sequence Analysis0303 health sciencesCrohn's diseaseeducation.field_of_studydigestive oral and skin physiologyCELIAC-DISEASEGenetic PleiotropyLifrarsjúkdómar3. Good healthFALSE DISCOVERY RATEULCERATIVE-COLITISgenetic association studydisease genetics030211 gastroenterology & hepatologySUSCEPTIBILITY LOCIPopulationCholangitis SclerosingSingle-nucleotide polymorphismHuman leukocyte antigenGENETIC RISKBiologyliverPolymorphism Single Nucleotidedigestive systemArticlePrimary sclerosing cholangitis03 medical and health sciencesFUNCTIONAL SIMILARITYGeneticsmedicineHumansGENOME-WIDE ASSOCIATIONeducation030304 developmental biologyNATURAL-HISTORYArfgengimedicine.diseasedigestive system diseasesimmunogeneticsGenetic LociCase-Control StudiesImmunologyGenome-Wide Association StudyINFLAMMATORY-BOWEL-DISEASE
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Transcriptional regulation of miR-224 upregulated in human HCCs by NFκB inflammatory pathways

2012

Background & Aims: miR-224 is up-regulated in human HCCs as compared to both paired peri-tumoral cirrhotic tissues and cirrhotic livers without HCC. Here, we have cloned the miR-224 regulatory region and characterized its transcriptional regulation by the NFκB-dependent inflammatory pathways. Methods: Mature miRNA expression was evaluated by a 2 step stem-loop real-time RT-PCR. The recruitment of polymerase II and transcription factors on the pre-miR-224 promoter has been assessed by ChIPSeq and ChIP. Results: We found miR-224 levels strongly up-regulated in both peri-tumoral cirrhotic livers and HCC samples as compared to normal livers. In silico analysis of the putative miR-224 promoter r…

LipopolysaccharidesLiver CirrhosisMaleCarcinoma HepatocellularTranscription GeneticLiver CirrhosiLipopolysaccharideBiologyCell MovementCell Line TumormicroRNATranscriptional regulationHumansNF kappa BHCCmir-224; nfκb; hcc; mirnas; transcriptionTranscription factorLymphotoxin-alphamiRNAAgedHepatologymiRNAs; HCC; miR-224; Transcription; NF kappa BTumor Necrosis Factor-alphaLiver NeoplasmsNF-kappa BMicroRNAmiR-224HCCSMiddle AgedNFKB1Up-RegulationMicroRNAsIκBαLiverLiver NeoplasmCase-Control StudiesImmunologymiRNAsCancer researchTumor necrosis factor alphaFemaleSignal transductionCase-Control StudieTranscriptionNFκBHumanSignal Transduction
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Serum antibodies to Vibrio vulnificus biotype 3 lipopolysaccharide and susceptibility to disease caused by the homologous V. vulnificus biotype

2011

SUMMARYIn 1996 an outbreak of severe soft tissue infections caused byVibrio vulnificusunexpectedly erupted in fish consumers in Israel with relatively little morbidity in fish farmers. To test the hypothesis that recurrent exposure of fishermen to the virulent strain may have provided protection against severe or symptomatic disease, we investigated the association between the immune response toV. vulnificusbiotype 3 lipopolysaccharide (BT3 LPS) and disease susceptibility in fish farmers and fish consumers. Serum samples were tested for IgA and IgG of anti-BT3 LPS in fishermen and fish consumers who suffered fromV. vulnificusBT3 infections and their matched controls. Pre-existing levels of …

LipopolysaccharidesMaleSerumEpidemiologyVirulenceMicrobiologiaVibrio vulnificusImmunoglobulin GSerologyMicrobiologyVibrionaceaeVibrio Infectionsparasitic diseasesHumansIsraelVibrio vulnificusbiologyOutbreakMiddle Agedbiology.organism_classificationAntibodies BacterialImmunoglobulin AInfectious DiseasesCase-Control StudiesImmunoglobulin GVibrio InfectionsImmunologybiology.proteinFemaleDisease SusceptibilityAntibody
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Quaking and miR-155 interactions in inflammation and leukemogenesis.

2015

Quaking (QKI) is a tumor-suppressor gene encoding a conserved RNA-binding protein, whose expression is downregulated in several solid tumors. Here we report that QKI plays an important role in the immune response and suppression of leukemogenesis. We show that the expression of Qki is reduced in lipopolysaccharide (LPS)-challenged macrophages, suggesting that Qki is a key regulator of LPS signaling pathway. Furthermore, LPS-induced downregulation of Qki expression is miR-155-dependent. Qki overexpression impairs LPS-induced phosphorylation of JNK and particularly p38 MAPKs, in addition to increasing the production of anti-inflammatory cytokine IL-10. In contrast, Qki ablation decreases Fas …

LipopolysaccharidesTime Factorsmedicine.medical_treatmentmedicine.disease_causeTransgenicMiceInnatePhosphorylationChronicB-LymphocytesLeukemiaRNA-Binding ProteinsU937 CellsLymphocyticCell biologyCytokineOncologyPhosphorylationCytokinesCLL; Glioblastoma; Inflammation; MiR-155; QKI; Animals; Apoptosis Regulatory Proteins; B-Lymphocytes; Case-Control Studies; Cytokines; Humans; Immunity Innate; Inflammation; Leukemia Lymphocytic Chronic B-Cell; Lipopolysaccharides; Macrophages; Mice; Mice Transgenic; MicroRNAs; Mitogen-Activated Protein Kinases; Phosphorylation; RAW 264.7 Cells; RNA-Binding Proteins; Signal Transduction; Time Factors; Transfection; U937 Cells; OncologySignal transductionMitogen-Activated Protein KinasesSignal Transductionp38 mitogen-activated protein kinasesOncology and CarcinogenesisMice TransgenicTransfectionNOmiR-155miR-155Downregulation and upregulationmicroRNAmedicineAnimalsHumansInflammationQKIbusiness.industryMacrophagesB-CellImmunityglioblastomaLeukemia Lymphocytic Chronic B-CellImmunity InnateMicroRNAsRAW 264.7 CellsCase-Control StudiesImmunologyCarcinogenesisbusinessApoptosis Regulatory ProteinsCLLPriority Research Paper
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Liver Fibrosis and Metabolic Alterations in Adults With alpha-1-antitrypsin Deficiency Caused by the Pi*ZZ Mutation

2019

Background & Aims Alpha-1 antitrypsin deficiency (AATD) is among the most common genetic disorders. Severe AATD is caused by a homozygous mutation in the SERPINA1 gene that encodes the Glu342Lys substitution (called the Pi*Z mutation, Pi*ZZ genotype). Pi*ZZ carriers may develop lung and liver diseases. Mutation-associated lung disorders have been well studied, but less is known about the effects in liver. We assessed the liver disease burden and associated features in adults with this form of AATD. Methods We collected data from 554 Pi*ZZ adults (403 in an exploratory cohort, 151 in a confirmatory cohort), in 9 European countries, with AATD who were homozygous for the Pi*Z mutation, and 234…

Liver CirrhosisMale0301 basic medicineALTLiver diseasechemistry.chemical_compound0302 clinical medicineLiver Function TestsRisk FactorsGenotypeRare Liver DiseaseAlpha 1-antitrypsin deficiencyHomozygoteAge FactorsGastroenterologyMiddle AgedEuropeEditorial CommentaryPhenotypemedicine.anatomical_structureLiverElasticity Imaging TechniquesFemale030211 gastroenterology & hepatologyTEAdultmedicine.medical_specialty610Mice Transgenic03 medical and health sciencesSex Factorsalpha 1-Antitrypsin DeficiencyInternal medicinemedicinePiAnimalsHumansGenetic Predisposition to DiseaseASTAgedLungHepatologyTriglyceridebusiness.industryLipid Metabolismmedicine.diseaseFatty Liver030104 developmental biologyEndocrinologychemistryCase-Control Studiesalpha 1-AntitrypsinMutationSteatosisTransient elastographybusinessGastroenterology
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The MBOAT7-TMC4 Variant rs641738 Increases Risk of Nonalcoholic Fatty Liver Disease in Individuals of European Descent

2016

Background & Aims Nonalcoholic fatty liver disease (NAFLD) is a leading cause of liver damage and is characterized by steatosis. Genetic factors increase risk for progressive NAFLD. A genome-wide association study showed that the rs641738 C>T variant in the locus that contains the membrane bound O-acyltransferase domain-containing 7 gene (MBOAT7, also called LPIAT1) and transmembrane channel-like 4 gene (TMC4) increased the risk for cirrhosis in alcohol abusers. We investigated whether the MBOAT7-TMC4 is a susceptibility locus for the development and progression of NAFLD. Methods We genotyped rs641738 in DNA collected from 3854 participants from the Dallas Heart Study (a multi-ethnic…

Liver CirrhosisMale0301 basic medicineCirrhosisBiopsyProton Magnetic Resonance SpectroscopyPhosphatidylinositolsTriglycerideSeverity of Illness IndexGastroenterologyLiver disease0302 clinical medicineNon-alcoholic Fatty Liver DiseaseRisk FactorsNonalcoholic fatty liver diseaseMembrane Proteineducation.field_of_studyArachidonic Acidmedicine.diagnostic_testNASHGastroenterologyTexasEuropePhenotypeLiverLiver biopsyFemale030211 gastroenterology & hepatologyTexaCase-Control StudiePhosphatidylinositolHumanmedicine.medical_specialtyAcyltransferaseLiver CirrhosiEuropean Continental Ancestry GroupPopulationTM6SF2White PeopleArticle03 medical and health sciencesArachidonic Acid; NASH; PNPLA3; TM6SF2; Acetyltransferases; Acyltransferases; Biopsy; Case-Control Studies; Cross-Sectional Studies; Europe; European Continental Ancestry Group; Female; Genetic Predisposition to Disease; Genome-Wide Association Study; Humans; Liver; Liver Cirrhosis; Male; Membrane Proteins; Non-alcoholic Fatty Liver Disease; Phenotype; Phosphatidylinositols; Proton Magnetic Resonance Spectroscopy; Risk Factors; Severity of Illness Index; Texas; Triglycerides; Polymorphism GeneticGeneticAcetyltransferasesInternal medicineAcetyltransferasemedicineHumansGenetic Predisposition to DiseasePolymorphismeducationPNPLA3TriglyceridesCross-Sectional StudiePolymorphism GeneticHepatologybusiness.industryRisk FactorCase-control studyMembrane Proteinsmedicine.diseaseCross-Sectional Studies030104 developmental biologyEndocrinologyCase-Control StudiesSteatosisbusinessAcyltransferasesGenome-Wide Association StudyTM6SF2Gastroenterology
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Fibronectin Type III Domain–Containing Protein 5 rs3480 A>G Polymorphism, Irisin, and Liver Fibrosis in Patients With Nonalcoholic Fatty Liver Dis…

2017

Context Contrasting data have been reported on the role of irisin, a novel myokine encoded by the fibronectin type III domain-containing protein 5 (FNDC5) gene, in nonalcoholic fatty liver disease (NAFLD) pathogenesis. We tested in patients with suspected nonalcoholic steatohepatitis (NASH) the association of FNDC5 variants, hepatic expression, and circulating irisin with liver damage (F2 to F4 fibrosis as main outcome). We also investigated whether irisin modulates hepatocellular fat accumulation and stellate cell activation in experimental models. Methods We considered 593 consecutive patients who underwent liver biopsy for suspected NASH and 192 patients with normal liver enzymes and wit…

Liver CirrhosisMale0301 basic medicineEndocrinology Diabetes and MetabolismClinical BiochemistrySeverity of Illness IndexBiochemistryGastroenterologyMiceEndocrinologyNon-alcoholic Fatty Liver DiseaseFibrosisNonalcoholic fatty liver diseaseOdds RatioProspective StudiesCarbon Tetrachloridemedicine.diagnostic_testReverse Transcriptase Polymerase Chain ReactionHep G2 CellsMiddle AgedFNDC5LiverLiver biopsyFemaleAdultmedicine.medical_specialtyIn Vitro TechniquesDiet High-FatReal-Time Polymerase Chain ReactionPolymorphism Single Nucleotide03 medical and health sciencesDiabetes mellitusInternal medicineMyokineHepatic Stellate CellsmedicineAnimalsHumansFNDC5 IRISIN NAFLDGenetic Predisposition to Diseasebusiness.industryBiochemistry (medical)medicine.diseasedigestive system diseasesFibronectins030104 developmental biologyEndocrinologyCase-Control StudiesHepatic stellate cellSteatosisbusinessThe Journal of Clinical Endocrinology & Metabolism
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GDF11 induces mild hepatic fibrosis independent of metabolic health

2020

BACKGROUND & AIMS: Growth Differentiation Factor 11 (GDF11) is an anti-aging factor, yet its role in liver diseases is not established. We evaluated the role of GDF11 in healthy conditions and in the transition from non-alcoholic fatty liver disease (NAFLD) to non-alcoholic steatohepatitis (NASH). RESULTS: GDF11 mRNA levels positively correlated with NAFLD activity score and with CPT1, SREBP, PPAR? and Col1A1 mRNA levels, and associated to portal fibrosis, in morbidly obese patients with NAFLD/NASH. GDF11-treated mice showed mildly exacerbated hepatic collagen deposition, accompanied by weight loss and without changes in liver steatosis or inflammation. GDF11 triggered ALK5-dependent SMAD2/…

Liver CirrhosisMaleAgingSettore MED/09 - Medicina Interna*liverLiver Cirrhosis ExperimentalFetgeWeight lossFibrosisfibrosis; growth differentiation factor 11; liver; NAFLD; NASHNon-alcoholic Fatty Liver DiseaseGrowth differentiation factor 11Fatty liverNASH*fibrosisMiddle AgedObesity MorbidGrowth Differentiation FactorsLiverBone Morphogenetic ProteinsDisease ProgressionFemalemedicine.symptomResearch PaperSignal TransductionAdultmedicine.medical_specialtygrowth differentiation factor 11Inflammationliverdigestive systemCell LineEnvellimentInternal medicineNAFLDmedicineHepatic Stellate CellsAnimalsHumansddc:612*growth differentiation factor 11business.industry*NAFLDfibrosisnutritional and metabolic diseasesCell Biologyliver NAFLD NASH fibrosis growth differentiation factor 11*NASHmedicine.diseaseFibrosisdigestive system diseasesMice Inbred C57BLEndocrinologyPortal fibrosisCase-Control StudiesGDF11Hepatic stellate cellSteatohepatitisHepatic fibrosisbusiness
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Umbilical hernioplasty in cirrhotic patients with ascites A case control study

2021

Umbilical hernia is a very frequent pathology, and plastic with prosthetic material is the most frequently used surgical procedure currently used for its repair. In patients with cirrhosis in asciic phase, this pathology is particularly frequent, with a tendency to rapidly increase in size and to become symptomatic. In the past treatment with traditional surgery in cirrhotic patients was considered problematic and was viewed with reserve, and only recently is the surgical approach recommended also in these patients. This study is aimed to evaluate the feasibility and safety of open umbilical hernia plastic with prosthetic material in cirrhotic and ascitic patients.Our case-control study was…

Liver CirrhosisMaleCase-Control StudiesAscitesHumanshernioplastyHernia UmbilicalHerniorrhaphy
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