0000000000256364

AUTHOR

Tobias Boettler

0000-0002-1195-055x

showing 8 related works from this author

Heterozygous carriage of the alpha1-antitrypsin Pi*Z variant increases the risk to develop liver cirrhosis.

2018

ObjectiveHomozygous alpha1-antitrypsin (AAT) deficiency increases the risk for developing cirrhosis, whereas the relevance of heterozygous carriage remains unclear. Hence, we evaluated the impact of the two most relevant AAT variants (‘Pi*Z’ and ‘Pi*S’), present in up to 10% of Caucasians, on subjects with non-alcoholic fatty liver disease (NAFLD) or alcohol misuse.DesignWe analysed multicentric case–control cohorts consisting of 1184 people with biopsy-proven NAFLD and of 2462 people with chronic alcohol misuse, both cohorts comprising cases with cirrhosis and controls without cirrhosis. Genotyping for the Pi*Z and Pi*S variants was performed.ResultsThe Pi*Z variant presented in 13.8% of p…

0301 basic medicineMalemedicine.medical_specialtyHeterozygoteCirrhosisMedizinSingle-nucleotide polymorphismDiseaseGastroenterologyPolymorphism Single NucleotideRisk Assessment03 medical and health sciences0302 clinical medicineAge DistributionLiver Cirrhosis AlcoholicNon-alcoholic Fatty Liver DiseaseInternal medicineGermanymedicinePiConfidence IntervalsOdds RatioHumansGenetic Predisposition to DiseaseRisk factorSex DistributionGenotypingLiver injurybusiness.industryGenetic Carrier ScreeningIncidenceFatty liverBiopsy NeedleGastroenterologyGenetic Variationmedicine.diseasePrognosisImmunohistochemistry030104 developmental biologyAustriaCase-Control Studiesalpha 1-Antitrypsin030211 gastroenterology & hepatologyFemalebusinessGut
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The ABCB4 p.T175A variant as potential modulator of hepatic fibrosis in patients with chronic liver diseases: Looking beyond the cholestatic realm

2017

Liver Cirrhosis0301 basic medicinemedicine.medical_specialtyATP Binding Cassette Transporter Subfamily BCholestasisHepatologybusiness.industryABCB4Gastroenterology03 medical and health sciences030104 developmental biology0302 clinical medicineInternal medicineRealmHumansMedicine030211 gastroenterology & hepatologyIn patientbusinessHepatic fibrosisHepatology
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Presence of the MBOAT7 rs641738 variant might enhance liver fibrosis in patients with fatty liver: analysis of the German NAFLD CSG cohort

2016

medicine.medical_specialtybusiness.industryLiver fibrosisFatty liverGastroenterologymedicine.diseaseGastroenterologylanguage.human_languageSurgeryGermanInternal medicineCohortlanguageMedicineIn patientbusinessZeitschrift für Gastroenterologie
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Norursodeoxycholic acid versus placebo in the treatment of non-alcoholic fatty liver disease: a double-blind, randomised, placebo-controlled, phase 2…

2019

Norursodeoxycholic acid is an orally administered side chain-shortened homologue of ursodeoxycholic acid that undergoes hepatic enrichment with hepatoprotective, anti-inflammatory, and antifibrotic activity. We assessed the efficacy of two doses of norursodeoxycholic acid versus placebo for the treatment of non-alcoholic fatty liver disease.We did a multicentre, double-blind, placebo-controlled, randomised, phase 2 dose-finding clinical trial in tertiary referral hospitals and medical centres in Austria (n=6) and Germany (n=23) for patients with non-alcoholic fatty liver disease with or without diabetes. Patients with a clinical diagnosis of non-alcoholic fatty liver disease and serum alani…

AdultBlood GlucoseMalemedicine.medical_specialtyCholagogues and CholereticsPopulationPlaceboGastroenterologylaw.invention03 medical and health sciences0302 clinical medicineRandomized controlled trialDouble-Blind MethodlawNon-alcoholic Fatty Liver DiseaseDiabetes mellitusInternal medicinemedicineHumansAspartate Aminotransferaseseducationeducation.field_of_studyHepatologyDose-Response Relationship Drugbusiness.industryFatty liverUrsodeoxycholic AcidGastroenterologyAlanine TransaminaseMiddle Agedmedicine.diseaseLipidsUrsodeoxycholic acidClinical trialDose–response relationshipTreatment Outcome030220 oncology & carcinogenesis030211 gastroenterology & hepatologyFemalebusinessmedicine.drugThe lancet. Gastroenterologyhepatology
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Could inherited predisposition drive fatty liver disease in non-obese Germans? Results from eight tertiary referral centers

2018

medicine.medical_specialtyReferralNon obesebusiness.industryInternal medicineFatty liverGastroenterologyMedicineDiseasebusinessmedicine.diseaseInherited PredispositionZeitschrift für Gastroenterologie
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Reply to: “Freiburg index of post-TIPS survival (FIPS) a valid prognostic score in patients with cirrhosis but also an advisor against TIPS?”

2021

Liver Cirrhosismedicine.medical_specialtyCirrhosisIndex (economics)Hepatologybusiness.industryPrognosismedicine.diseasePrognostic scoreText miningInternal medicinemedicineHumansIn patientPortasystemic Shunt Transjugular IntrahepaticbusinessJournal of Hepatology
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Combined effects of the PNPLA3 rs738409, TM6SF2 rs58542926, and MBOAT7 rs641738 variants on NAFLD severity: a multicenter biopsy-based study.

2016

The PNPLA3 p.I148M, TM6SF2 p.E167K, and MBOAT7 rs641738 variants represent genetic risk factors for nonalcoholic fatty liver disease (NAFLD). Here we investigate if these polymorphisms modulate both steatosis and fibrosis in patients with NAFLD. We recruited 515 patients with NAFLD (age 16–88 years, 280 female patients). Liver biopsies were performed in 320 patients. PCR-based assays were used to genotype the PNPLA3, TM6SF2, and MBOAT7 variants. Carriers of the PNPLA3 and TM6SF2 risk alleles showed increased serum aspartate aminotransferase and alanine transaminase activities (P 0.05). The MBOAT7 variant was solely associated with increased fibrosis (P = 0.046). In the multivariate model, v…

0301 basic medicineMalePathologyBiopsyBiochemistryGastroenterologySeverity of Illness Index0302 clinical medicineEndocrinologyFibrosisNon-alcoholic Fatty Liver DiseaseGenotypeNonalcoholic fatty liver diseaseAged 80 and overeducation.field_of_studybiologyFatty liverMiddle AgedLiver030211 gastroenterology & hepatologyFemaleAdultmedicine.medical_specialtyAdolescentGenotypePolymorphism Single Nucleotide03 medical and health sciencesYoung AdultInternal medicinemedicineHumansAdiponutrinGenetic Predisposition to DiseaseeducationAllelesGenetic Association StudiesAgedbusiness.industryMembrane ProteinsCell BiologyLipasemedicine.diseaseFibrosisFatty Liver030104 developmental biologyAlanine transaminasebiology.proteinSteatosisbusinessPatient-Oriented and Epidemiological ResearchAcyltransferasesTM6SF2Journal of lipid research
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Refining prediction of survival after TIPS with the novel Freiburg index of post-TIPS survival.

2021

Background & Aims Transjugular intrahepatic portosystemic shunt (TIPS) implantation is an effective and safe treatment for complications of portal hypertension. Survival prediction is important in these patients as they constitute a high-risk population. Therefore, the aim of our study was to develop an alternative prognostic model for accurate survival prediction after planned TIPS implantation. Methods A total of 1,871 patients with de novo TIPS implantation for ascites or secondary prophylaxis of variceal bleeding were recruited retrospectively. The study cohort was divided into a training set (80% of study patients; n = 1,496) and a validation set (20% of study patients; n = 375). Furth…

0301 basic medicineLiver CirrhosisMalemedicine.medical_specialtyCirrhosismedicine.medical_treatmentPopulationClinical Decision-MakingSerum Albumin HumanEsophageal and Gastric Varices03 medical and health sciences0302 clinical medicineRisk FactorsInternal medicineAscitesmedicineSecondary PreventionHumanseducationAgedRetrospective Studieseducation.field_of_studyFramingham Risk ScoreHepatologyProportional hazards modelbusiness.industryAge FactorsAscitesBilirubinMiddle Agedmedicine.diseasePrognosisSurvival Rate030104 developmental biologyTreatment OutcomeResearch DesignCreatinineCohortPortal hypertension030211 gastroenterology & hepatologyFemalemedicine.symptomPortasystemic Shunt Transjugular IntrahepaticbusinessGastrointestinal HemorrhageTransjugular intrahepatic portosystemic shuntJournal of hepatology
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