Search results for "polymorph"

showing 10 items of 2115 documents

A variant of the LRP4 gene affects the risk of chronic lymphocytic leukaemia transformation to Richter syndrome

2010

Richter syndrome (RS) represents the transformation of chronic lymphocytic leukaemia (CLL) to aggressive lymphoma. Risk factors of CLL transformation to RS are only partly known. We explored the role of the host genetic background as a risk factor for RS occurrence. Forty-five single nucleotide polimorphisms (SNPs) known to be relevant for CLL prognosis were genotyped in a consecutive cohort of 331 CLL, of which 21 had transformed to RS. After correcting for multiple testing and adjusting for previously reported RS risk factors, the LRP4 rs2306029 TT variant genotype was the sole SNP independently associated with a higher risk of RS transformation (Hazard Ratio: 4·17; P = 0·001; q = 0·047).…

MaleAged; Amino Acid Sequence; Animals; Disease Progression; Epidemiologic Methods; Female; Genetic Predisposition to Disease; Genotype; Humans; LDL-Receptor Related Proteins; Leukemia Lymphocytic Chronic B-Cell; Lymphoma; Male; Middle Aged; Molecular Sequence Data; Neoplasm Proteins; Polymorphism Single Nucleotide; Prognosis; Sequence Alignment; SyndromeGenotypeLymphomaMolecular Sequence DataLRP4genetics/metabolismRichter syndrome; chronic lymphocytic leukemia; LRP4 genePolymorphism Single NucleotideAnimalsHumansGenetic Predisposition to DiseaseAmino Acid SequenceChronicPolymorphismLDL-Receptor Related ProteinsAgedLeukemiaLRP4 geneB-CellSingle NucleotideSyndromeMiddle AgedPrognosisRichter syndrome.Leukemia Lymphocytic Chronic B-Cellsingle nucleotide polimorphismLymphocyticdiffuse large B cell lymphomaNeoplasm ProteinsAged Amino Acid Sequence Animals Disease Progression Epidemiologic Methods Female Genetic Predisposition to Disease Genotype Humans LDL-Receptor Related Proteins; genetics/metabolism Leukemia; Lymphocytic; Chronic; B-Cell; genetics/metabolism Lymphoma; genetics/metabolism Male Middle Aged Molecular Sequence Data Neoplasm Proteins; genetics/metabolism Polymorphism; Single Nucleotide Prognosis Sequence Alignment SyndromeSettore MED/15 - MALATTIE DEL SANGUERichter syndrome; chronic lymphocytic leukaemia; diffuse large B cell lymphoma; single nucleotide polimorphism; LRP4Disease Progressionchronic lymphocytic leukemiaFemaleRichter syndromeEpidemiologic MethodsSequence Alignmentchronic lymphocytic leukaemia

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Human longevity within an evolutionary perspective: The peculiar paradigm of a postreproductive genetics

2008

The data we collected on the genetics of human longevity, mostly resulting from studies on centenarians, indicate that: (1) centenarians and long-living sib-pairs are a good choice for the study of human longevity, because they represent an extreme phenotype, i.e., the survival tail of the population who escaped neonatal mortality, pre-antibiotic era illnesses, and fatal outcomes of age-related complex diseases. (2) The model of centenarians is not simply an additional model with respect to well-studied organisms, and the study of humans has revealed characteristics of ageing and longevity (geographical and sex differences, role of antigenic load and inflammation, role of mtDNA variants) wh…

MaleAgingMitochondrial DNAGenotypemedia_common.quotation_subjectLongevityPopulationBiologyBiochemistry03 medical and health sciences0302 clinical medicineEndocrinologyGeneticsHumansFamilyeducationMolecular BiologyComputingMilieux_MISCELLANEOUS030304 developmental biologymedia_commonAged 80 and overGenetics0303 health scienceseducation.field_of_studyPolymorphism GeneticReproductionLongevityCell BiologyAdaptation PhysiologicalBiological EvolutionPhenotypeHuman longevityGene Expression RegulationHomo sapiensAgeingEvolutionary biologyTraitMedicineFemaleIdentification (biology)postreproductive genetics030217 neurology & neurosurgery

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C9ORF72 hexanucleotide repeat expansions in the Italian sporadic ALS population.

2012

It has been recently reported that a large proportion of patients with familial amyotrophic lateral sclerosis (familial ALS) and frontotemporal dementia (FTD) are associated with a hexanucleotide (GGGGCC) repeat expansion in the first intron of C9ORF72. We have assessed 1,757 Italian sporadic ALS cases, 133 from Sardinia, 101 from Sicily, and 1,523 from mainland Italy. Sixty (3.7%) of 1,624 mainland Italians and Sicilians and 9 (6.8%) of the 133 Sardinian sporadic ALS cases carried the pathogenic repeat expansion. None of the 619 regionally-matched control samples (1,238 chromosomes) carried the expansion. Twenty-five cases (36.2%) had behavioral FTD in addition to ALS. FTD or unspecified d…

MaleAgingSurvivalPedigree chartSettore MED/03 - GENETICA MEDICARepetitive Sequences0302 clinical medicineC9orf72Polymorphism (computer science)Risk FactorsPrevalenceAmyotrophic lateral sclerosisGenetics0303 health scienceseducation.field_of_studyGeneral NeuroscienceSingle NucleotideMiddle Aged3. Good healthSettore MED/26 - NEUROLOGIAItalyFemaleSettore MED/26 - NeurologiaFrontotemporal dementiaFrontotemporal dementiaGenetic MarkersPopulationC9ORF72BiologyPolymorphism Single NucleotideArticle03 medical and health sciencesmedicineHumansGenetic Predisposition to DiseasePolymorphismeducationamyotrophic lateral sclerosis; C9orf672; frontotemporal dementia; survivalAmyotrophic lateral sclerosi030304 developmental biologyRepetitive Sequences Nucleic AcidAmyotrophic lateral sclerosis; C9ORF72; sporadicC9orf72 ProteinNucleic AcidAmyotrophic lateral sclerosis C9ORF72 Frontotemporal dementia SurvivalGenetic VariationProteinsmedicine.diseaseAmyotrophic lateral sclerosisC9orf672C9orf72 ProteinAmyotrophic lateral sclerosis; C9ORF72; Frontotemporal dementia; Survival;Settore BIO/18 - GeneticasporadicNeurology (clinical)Geriatrics and GerontologyALSTrinucleotide repeat expansion030217 neurology & neurosurgeryDevelopmental Biology

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HFE p.H63D polymorphism does not influence ALS phenotype and survival.

2015

It has been recently reported that the p.His63Asp polymorphism of the HFE gene accelerates disease progression both in the SOD1 transgenic mouse and in amyotrophic lateral sclerosis (ALS) patients. We have evaluated the effect of HFE p.His63Asp polymorphism on the phenotype in 1351 Italian ALS patients (232 of Sardinian ancestry). Patients were genotyped for the HFE p.His63Asp polymorphism (CC, GC, and GG). All patients were also assessed for C9ORF72, TARDBP, SOD1, and FUS mutations. Of the 1351 ALS patients, 363 (29.2%) were heterozygous (GC) for the p.His63Asp polymorphism and 30 (2.2%) were homozygous for the minor allele (GG). Patients with CC, GC, and GG polymorphisms did not significa…

MaleAgingSurvivalSettore MED/03 - GENETICA MEDICAMiceSuperoxide Dismutase-1C9orf72HFE polymorphismAmyotrophic lateral sclerosisAmyotrophic lateral sclerosis; HFE polymorphisms; Phenotype; SOD1; Survival; Aged; Alleles; Amyotrophic Lateral Sclerosis; Animals; Disease Progression; Female; Hemochromatosis Protein; Histocompatibility Antigens Class I; Humans; Italy; Male; Membrane Proteins; Mice; Middle Aged; Polymorphism Genetic; Superoxide Dismutase; Superoxide Dismutase-1; Survival Rate; Genetic Association Studies; PhenotypeHFE polymorphismsMembrane ProteinAlleleAmyotrophic lateral sclerosis; HFE polymorphisms; Phenotype; SOD1; Survival; Neurology (clinical); Neuroscience (all); Aging; Developmental Biology; Geriatrics and GerontologyGeneral NeuroscienceSOD1Middle AgedPhenotypeSurvival RatePhenotypeItalyAmyotrophic lateral sclerosis; HFE polymorphisms; SOD1; phenotype; survivalDisease ProgressionFemaleHumanmedicine.medical_specialtySOD1Amyotrophic lateral sclerosis; HFE polymorphisms; Phenotype; SOD1; Survival;Genetic Association StudieBiologyTARDBPArticleGeneticInternal medicinemedicineAnimalsHumansAllelePolymorphismHemochromatosis ProteinSurvival rateAmyotrophic lateral sclerosiAllelesGenetic Association StudiesAgedNeuroscience (all)Polymorphism GeneticAnimalSuperoxide DismutaseAmyotrophic Lateral SclerosisHistocompatibility Antigens Class Inutritional and metabolic diseasesMembrane Proteinsmedicine.diseaseMinor allele frequencyEndocrinologyImmunologyNeurology (clinical)Geriatrics and GerontologyDevelopmental BiologyNeurobiology of aging

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Association between longevity and cytokine gene polymorphisms. A study in Sardinian centenarians

2004

Background and aims: Human longevity seems to be directly correlated with optimal functioning of the immune system, suggesting that some genetic determinants of longevity reside in those polymorphisms for the immune system genes which regulate immuneinflammatory responses, in particular cytokine gene polymorphisms. The frequency of − 174C single nucleotide polymorphism (SNP) in the promoter region of the interleukin(IL)-6 gene is increased in Italian male centenarians. Moreover, the frequency of − 1082G SNP at the 5′ flanking region of the IL-10 gene coding sequence is increased among male centenarians, and that of +874A SNP at the interferon (IFN)- γ gene was found more frequently in femal…

MaleAgingmedia_common.quotation_subjectLongevityPopulationSingle-nucleotide polymorphismEnvironmentBiologyPolymorphism Single NucleotideInterferon-gammaPolymorphism (computer science)HumansSNPAlleleeducationGeneAgedmedia_commonAged 80 and overeducation.field_of_studyInterleukin-6LongevityMiddle AgedInterleukin-10ItalyImmunologyCytokinesFemaleGene poolGeriatrics and Gerontology

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Analysis of polymorphisms Leiden Factor V G1691A and prothrombin G20210A as risk factors for acute myocardial infarction.

2011

Thrombotic risk increases in elderly, therefore, the understanding of the genetic predisposition of hypercoagulability could make the difference in the prevention of venous and/or arterial thrombotic events. Laboratory evaluation of hyperfibrinogenemia, increased Factor VII levels, antiphospholipid antibodies presence and hyperhomocysteinemia are considered to have a consistent high predictivity for arterial thrombophilic diseases. Anyway, a large debate exists on the validity of testing Leiden Factor V (FV) G1691A and/or prothrombin (FII) G20210A polymorphisms in patients affected by arterial thrombotic diseases, despite of the several observations described. Here we report data strongly s…

MaleAgingmedicine.medical_specialtyHyperhomocysteinemiaLeiden Factor V; Prothrombin; Stroke; Guidelines; Arterial thrombosis.Myocardial InfarctionHyperfibrinogenemiaGuidelineGUIDELINESGastroenterologyCohort Studieschemistry.chemical_compoundInternal medicineArterial DisorderGenotypeGenetic predispositionmedicineHumansGenetic Predisposition to DiseaseMyocardial infarctionAgedAged 80 and overPolymorphism GeneticFactor VIIbusiness.industryFactor VMiddle Agedmedicine.diseaseSurgeryStrokeTHROMBOSISchemistryArterial thrombosis.Prothrombin G20210AFemaleProthrombinGeriatrics and GerontologybusinessGerontologyLeiden Factor V

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SARS CoV2 infection _The longevity study perspectives

2021

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MaleAgingssRNA single-stranded RNARFLP restriction fragment length polymorphismHSPs heat shock proteinsReviewPTMs post-translational modificationsSevere Acute Respiratory SyndromeBiochemistryHIV-1 human immunodeficiency virus-1TNF-α tumor necrosis factor-αEC endothelial cells0302 clinical medicineFluAV influenza A virusI insertionMedicineIFN-γ interferon-γDIC disseminated intravascular coagulationPCR Polymerase Chain Reactionmedia_commonAged 80 and overLongevityRBD receptor-binding domainNeurologyLongevity modelMI myocardial infarctionNK natural killerhPIV2 human parainfluenza virus type 2media_common.quotation_subjectResearching genetic basis of resistance and potential pharmacological targetsLongevityDBP diastolic blood pressureNF-Kb nuclear transcription factor kBRANTES regulated upon activation normal T cell expressed and secretedMphi human macrophages03 medical and health sciencesCox 2 cyclooxygenase 2ORF open reading framePT prothrombin timeSettore MED/05 - Patologia ClinicaHumansMolecular BiologyInflammatory genesARDS acute respiratory distress syndromeNO nitric oxideD deletionCpGIs CpG islandsT2DM type 2 diabetes mellitusmedicine.diseaseFDP fibrin degradation products030104 developmental biologySARS CoV2 severe acute respiratory syndrome Coronavirus 2 virusImmunologyBMI body max indexItalian nonagenarians/centenariansRSV respiratory syncytial virusComplication030217 neurology & neurosurgeryMAPK mitogen-activated protein kinaseIP-10 IFN-γ -Inducible Protein 1040301 basic medicineAT1R activity of angiotensin 1 receptorsDCs dentritic cellsSSCP single strand conformation polymorphismACE/DD polymorphism of the angiotensin converting enzymeFGF21 fibroblast growth factor 21TLR4 toll-like receptor 4NAD nicotinamide adenine dinucleotideACE angiotensin-I converting enzymeAT2R activity of angiotensin 2 receptorsCOVID-19 Coronavirus disease 2019Respiratory distressACE2 angiotensin converting enzyme 2MKP-1 mitogen-activated protein kinase phosphatase-1 ()PD protease domainSNP single nucleotide polymorphismEH essential hypertensionTNFR tumor necrosis factor receptorINR international normalized ratio of the prothrombin timePAI-1 plasminogen activator inhibitor-1Ang angiotensinLPS lipopolysaccharideMCP1 monocyte chemoattractant protein-1medicine.symptomaPTT partial thromboplastin timeBiotechnologyDUSP1 dual specificity phosphatase 1Coronavirus disease 2019 (COVID-19)PC prostate cancerRAS renin-angiotensin aldosterone systemCCR5Δ32 genetic variant of chemokine receptorCOVID-19 Researching genetic basis of resistance and potential pharmacological targets Italian nonagenarians/centenarians Longevity modelAsymptomaticSARS-1 severe acute respiratory syndrome virus 1SIRT-1 Sirtuin 1Th1 t-helper lymphocyte type 1Immune systemROS reactive oxygen speciesTGF-β transforming growth factor betaET-1 endothelin-1ComputingMethodologies_COMPUTERGRAPHICSADAM-17 metallopeptidase domain 17business.industrySARS-CoV-2SBP systolic blood pressureCOVID-19HDACs histone deacetylasesComorbidityImmune Systembusiness5-LO lipoxygenase 5Ageing Research Reviews

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Genome-wide Analyses Identify KIF5A as a Novel ALS Gene

2018

MaleAls geneGenome-wide association studyFAMILIAL ALSALS; axonal transport; cargo; GWAS; KIF5A; WES; WGS0302 clinical medicine80 and overPsychologyGWASKIF5AAetiologycargoAged 80 and over0303 health sciencesFrench ALS ConsortiumKinesinKINESIN HEAVY-CHAINCognitive Sciencesaxonal transportHumanHereditary spastic paraplegiaNeuroscience(all)Single-nucleotide polymorphismTARGETED DISRUPTIONArticle03 medical and health sciencesGeneticsHumansAmino Acid SequenceLoss functionAgedHEXANUCLEOTIDE REPEATNeuroscience (all)MUTATIONSAmyotrophic Lateral Sclerosis3112 Neurosciences1702 Cognitive Sciencemedicine.diseaseITALSGEN ConsortiumAnswer ALS Foundation030104 developmental biologyALS Sequencing ConsortiumHuman medicine1109 Neurosciences030217 neurology & neurosurgery0301 basic medicineALS; GWAS; KIF5A; WES; WGS; axonal transport; cargo[SDV]Life Sciences [q-bio]KinesinsNeurodegenerativeGenetic analysisGenomeAMYOTROPHIC-LATERAL-SCLEROSIS3124 Neurology and psychiatryCohort StudiesPathogenesisLoss of Function MutationMissense mutation2.1 Biological and endogenous factorsAmyotrophic lateral sclerosisNYGC ALS ConsortiumGeneticsGeneral NeuroscienceALS axonal transport cargo GWAS KIF5A WES WGSMiddle AgedPhenotypeSettore MED/26 - NEUROLOGIANeurologicalProject MinE ALS Sequencing ConsortiumKinesinWESFemaleAdultBiologyGENOTYPE IMPUTATIONALS; axonal transport; cargo; GWAS; KIF5A; WES; WGS; Adult; Aged; Aged 80 and over; Amino Acid Sequence; Amyotrophic Lateral Sclerosis; Cohort Studies; Female; Genome-Wide Association Study; Humans; Kinesin; Loss of Function Mutation; Male; Middle Aged; Young AdultNOYoung AdultRare DiseasesmedicineSLAGEN ConsortiumGene030304 developmental biologyClinical Research in ALS and Related Disorders for Therapeutic Development (CReATe) ConsortiumNeurology & NeurosurgeryHuman GenomeNeurosciencesAXONAL-TRANSPORTBrain DisordersALS; axonal transport; cargo; GWAS; KIF5A; WES; WGS;Family memberDNA-DAMAGEMOTOR-NEURONS3111 BiomedicineCohort StudieALSGenomic Translation for ALS Care (GTAC) ConsortiumWGSAmyotrophic Lateral SclerosiGenome-Wide Association StudyALS; axonal transport; cargo; GWAS; KIF5A; WES; WGS; Neuroscience (all)

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Genome-wide association study identifies novel susceptibility loci for KIT D816V positive mastocytosis

2021

Mastocytosis is a rare myeloid neoplasm characterized by uncontrolled expansion of mast cells, driven in >80% of affected individuals by acquisition of the KIT D816V mutation. To explore the hypothesis that inherited variation predisposes to mastocytosis, we performed a two-stage genome-wide association study, analyzing 1,035 individuals with KIT D816V positive disease and 17,960 healthy control individuals from five European populations. After quality control, we tested 592,007 SNPs at stage 1 and 75 SNPs at stage 2 for association by using logistic regression and performed a fixed effects meta-analysis to combine evidence across the two stages. From the meta-analysis, we identified three …

MaleAmino Acid Transport System y+TERTReceptors Cytoplasmic and NuclearGenome-wide association studySingle-nucleotide polymorphismDiseaseBiologyQuantitative trait locusPolymorphism Single NucleotideGermlineArticleGenetic variationCEBPACEBPAGeneticsHumansTBL1XR1Genetic Predisposition to DiseaseGeneTelomeraseGenetics (clinical)GeneticsInterleukin-13KITIntronsRepressor ProteinsProto-Oncogene Proteins c-kitD816VCebpa ; D816v ; Kit ; Mastocytosis ; Myeloid Cancer ; Tbl1xr1 ; TertCCAAT-Enhancer-Binding ProteinsDNA IntergenicFemaleRNA Long NoncodingTryptasesMyeloid cancerMastocytosisGenome-Wide Association Study

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Common variants of the liver fatty acid binding protein gene influence the risk of type 2 diabetes and insulin resistance in Spanish population.

2012

Journal Article; Research Support, Non-U.S. Gov't; SUMMARY The main objective was to evaluate the association between SNPs and haplotypes of the FABP1-4 genes and type 2 diabetes, as well as its interaction with fat intake, in one general Spanish population. The association was replicated in a second population in which HOMA index was also evaluated. METHODS 1217 unrelated individuals were selected from a population-based study [Hortega study: 605 women; mean age 54 y; 7.8% with type 2 diabetes]. The replication population included 805 subjects from Segovia, a neighboring region of Spain (446 females; mean age 52 y; 10.3% with type 2 diabetes). DM2 mellitus was defined in a similar way in b…

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