0000000000241259

AUTHOR

Miriam Longo

0000-0002-9433-3492

showing 5 related works from this author

Mboat7 down-regulation by hyper-insulinemia induces fat accumulation in hepatocytes.

2020

Background: Naturally occurring variation in Membrane-bound O-acyltransferase domain-containing 7 (MBOAT7), encoding for an enzyme involved in phosphatidylinositol acyl-chain remodelling, has been associated with fatty liver and hepatic disorders. Here, we examined the relationship between hepatic Mboat7 down-regulation and fat accumulation. Methods: Hepatic MBOAT7 expression was surveyed in 119 obese individuals and in experimental models. MBOAT7 was acutely silenced by antisense oligonucleotides in C57Bl/6 mice, and by CRISPR/Cas9 in HepG2 hepatocytes. Findings: In obese individuals, hepatic MBOAT7 mRNA decreased from normal liver to steatohepatitis, independently of diabetes, inflammatio…

Research paperTGFβ Transforming Growth Factor BetaIntracellular SpaceCRISPR Clustered Regularly Interspaced Short Palindromic RepeatshHEPS Human HepatocytesMice0302 clinical medicineLPIAT1DAG Diacylglyceroli.p. Intraperitonealmedia_commonFatty AcidsGeneral Medicine3. Good health030220 oncology & carcinogenesisHOMA-IR homeostasis Model Assessment of Insulin ResistanceMPO morpholinolcsh:Medicine (General)medicine.medical_specialtyPE Phosphatidyl-EthanolamineNashGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesTNFα tumor Necrosis Factor AlphaLDL Low Density LipoproteinsHyperinsulinismNAFLDSD Standard Dietmedia_common.cataloged_instanceHumansCPT1 Carnitine Palmitoyltransferase IPhosphatidylinositolGene SilencingEuropean unionVLDL Very Low Density Lipoproteinlcsh:RhHSC Human Hepatic Stellate Cellsmedicine.diseaseLipid MetabolismOA Oleic AcidCI Confidence IntervalMboat7 Membrane bound O-acyltransferase domain containing 7MCD methionine choline deficient diet030104 developmental biologyEndocrinologychemistryCDP Cytidine-DiphosphateFOXO1 Forkhead Box protein O1NAFLD nonalcoholic fatty liver diseaseSteatohepatitisBMI Body Mass IndexCL CardiolipinAcyltransferases0301 basic medicineAlcoholic liver diseaseCXCL10 C-X-C Motif Chemokine 10lcsh:Medicinechemistry.chemical_compoundNon-alcoholic Fatty Liver DiseaseIFG Impaired Fasting GlucoseAPOB Apolipoprotein BNonalcoholic fatty liver diseasePIP Phosphatidyl-Inositol-PhosphateSteatohepatitisqRT-PCR quantitative Real Time Polymerase Chain ReactionMice Knockoutlcsh:R5-920ORO Oil Red O StainingPI PhosphatidylinositolFatty liverTM6SF2 Transmembrane 6 Superfamily Member 2PhospholipidTAG TriglyceridesNASH Nonalcoholic SteatohepatitisLipogenesisLPA Lyso-Phosphatidic AcidPhosphatidylinositolSignal TransductionPS Phosphatidyl-SerinePA Palmitic AcidALD alcoholic liver diseasePC Phosphatidylcholinei.v. IntravenousFATP1 Fatty Acid Transport Protein 1Models BiologicalInternal medicinemedicineAnimalsNonalcoholic fatty liver diseasePPARα Peroxisome Proliferator-Activated Receptor alphaObesityG3P Glyceraldehyde-3-PhosphateSREBP1c Sterol Regulatory Element-Binding Protein 1HDL High Density Lipoproteinsbusiness.industryPI3K Phosphatidylinositol 3 KinaseMembrane ProteinsNHEJ Non-Homologues End JoiningPNPLA3 Patatin-like Phospholipase Domain-containing-3MTTP Microsomal Triglyceride Transfer ProteinLPIAT1 Lysophosphatidylinositol Acyltransferase 1TMC4 Transmembrane Channel-Like 4Disease Models AnimalGene Expression RegulationHepatocytesFOXA2 Forkhead Box A2mTOR mammalian target of RapamycinSteatosisInsulin ResistancebusinessPG Phosphatidyl-GlycerolFABP1 Fatty Acid-Binding Protein 1 FAS Fatty Acid SynthaseT2DM Type 2 Diabetes MellitusEBioMedicine
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<i>NR1H4</i> rs35724 G>C Variant Modulates Liver Damage in Nonalcoholic Fatty Liver Disease

2020

Background and Aims: Farnesoid X receptor (FXR) plays a key role in bile acid and lipid homeostasis. Experimental evidence suggests that it can modulate liver damage related to nonalcoholic fatty liver disease (NAFLD). We examined the impact of the NR1H4 rs35724 variant, encoding for FXR, on liver damage in a large cohort of patients at risk of steatohepatitis. Methods: We considered 2,660 consecutive individuals at risk of steatohepatitis with liver histology. The rs35724 G>C polymorphisms was genotyped by TaqMan assays. Gene expression was evaluated by RNASeq in a subset of patients (n=124). Results: The NR1H4 rs35724 variant was protective against severity of steatosis (OR 0.89, 95% C.I.…

0303 health sciencesmedicine.medical_specialtyBile acidCholesterolbusiness.industrymedicine.drug_class030302 biochemistry & molecular biologymedicine.diseaseGastroenterology3. Good health03 medical and health scienceschemistry.chemical_compoundchemistryFibrosisInternal medicineNonalcoholic fatty liver diseasemedicineCYP39A1Farnesoid X receptorSteatosisSteatohepatitisbusiness030304 developmental biologySSRN Electronic Journal
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Neurotensin up-regulation is associated with advanced fibrosis and hepatocellular carcinoma in patients with MAFLD

2020

Background & aims: Neurotensin (NTS), a 13-aminoacid peptide localized in central nervous system and gastrointestinal tract, is involved in lipid metabolism and promotes various cancers onset mainly by binding to neurotensin receptor 1 (NTSR1). Increased plasma levels of pro-NTS, the stable NTS precursor, have been associated with type 2 diabetes (T2D), cardiovascular diseases and metabolic associated fatty liver disease (MAFLD). We aimed to evaluate 1) the impact of NTS rs1800832 and NTSR1 rs6090453 genetic variants on liver damage in 1166 MAFLD European individuals, 2) the relation between NTS variant and circulating pro-NTS and 3) the hepatic NTS expression by RNAseq transcriptomic a…

Male0301 basic medicineLiver damagemedicine.medical_specialtyGenetic variantsCarcinoma HepatocellularNeurotensin receptor 1CirrhosisTherapeutic targetSettore MED/12 - GASTROENTEROLOGIAType 2 diabetesGastroenterology03 medical and health sciencesLiver disease0302 clinical medicineFibrosisInternal medicinemedicineHumansReceptors NeurotensinBiomarker; Genetic variants; Lipid metabolism; Liver damage; Therapeutic targetMolecular BiologyNeurotensinAgedCell Proliferationbusiness.industryLiver NeoplasmsFatty liverBiomarker Genetic variants Lipid metabolism Liver damage Therapeutic targetCell BiologyBiomarkerMiddle Agedrespiratory systemmedicine.diseaseFibrosisFatty Liver030104 developmental biologyLipid metabolismDiabetes Mellitus Type 2Gene Expression Regulationnervous systemHepatocellular carcinomaMutationFemale030211 gastroenterology & hepatologybusinessHepatic fibrosiscirculatory and respiratory physiology
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NR1H4 rs35724 G>C variant modulates liver damage in nonalcoholic fatty liver disease

2021

Background and Aims: Farnesoid X receptor (FXR) plays a key role in bile acid and lipid homeostasis. Experimental evidence suggests that it can modulate liver damage related to nonalcoholic fatty liver disease (NAFLD). We examined the impact of the NR1H4 rs35724 G>C, encoding for FXR, on liver damage in a large cohort of patients at risk of steatohepatitis. Methods: We considered 2,660 consecutive individuals at risk of steatohepatitis with liver histology. The rs35724 G>C polymorphisms were genotyped by TaqMan assays. Gene expression was evaluated by RNASeq in a subset of patients (n = 124). Results: The NR1H4 rs35724 CC genotype, after adjusting for clinic-metabolic and genetic conf…

Liver Cirrhosismedicine.medical_specialtymedicine.drug_classReceptors Cytoplasmic and NuclearGastroenterologyBile Acids and Saltschemistry.chemical_compoundNon-alcoholic Fatty Liver DiseaseFibrosisSettore BIO/13 - Biologia ApplicataInternal medicineNAFLDNonalcoholic fatty liver diseasemedicineHumansReceptor Fibroblast Growth Factor Type 4Settore MED/12 - GastroenterologiaHepatologyBile acidCholesterolbusiness.industryNASHObeticholic acidmedicine.diseaseNR1H4LiverchemistryFXRSteroid HydroxylasesFarnesoid X receptorSteatohepatitisSteatosisbusiness
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PCSK7 gene variation bridges atherogenic dyslipidemia with hepatic inflammation in NAFLD patients

2019

Dyslipidemia and altered iron metabolism are typical features of nonalcoholic fatty liver disease (NAFLD). Proprotein convertase subtilisin/kexin type 7 (PCSK7) gene variation has been associated with circulating lipids and liver damage during iron overload. The aim of this study was to examine the impact of the PCSK7 rs236918 variant on NAFLDrelated traits in 1,801 individuals from the Liver Biopsy Cohort (LBC), 500,000 from the UK Biobank Cohort (UKBBC), and 4,580 from the Dallas Heart Study (DHS). The minor PCSK7 rs236918 C allele was associated with higher triglycerides, aminotransferases, and hepatic inflammation in the LBC (P < 0.05) and with hypercholesterolemia and liver disease …

0301 basic medicinenonalcoholic fatty liver diseasemedicine.medical_specialtyDyslipidemias; Genetics; Inflammation; Liver; Triglycerides; genes in lipid dysfunction; metabolic disease; non-alcoholic fatty liver diseaseHyperlipidemiasInflammationQD415-436030204 cardiovascular system & hematologyBiochemistryproprotein convertase subtilisin/kexin type 703 medical and health sciencesLiver disease0302 clinical medicineEndocrinologyGeneticInternal medicineNonalcoholic fatty liver diseasemedicineGeneticsHumansSubtilisinsAlleleTriglyceridesDyslipidemiasHypertriglyceridemiaInflammationgenes in lipid dysfunctionmedicine.diagnostic_testbusiness.industrynon-alcoholic fatty liver diseaseCell Biologymedicine.diseasemetabolic disease030104 developmental biologyEndocrinologyLiverLiver biopsyLipogenesisKexinmedicine.symptomPatient-Oriented and Epidemiological ResearchbusinessDyslipidemia
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