Search results for " Familial hypobetalipoproteinemia"

showing 4 items of 4 documents

Clinical and biochemical characteristics of individuals with low cholesterol syndromes: A comparison between familial hypobetalipoproteinemia and fam…

2017

Background The most frequent monogenic causes of low plasma cholesterol are familial hypobetalipoproteinemia (FHBL1) because of truncating mutations in apolipoprotein B coding gene (APOB) and familial combined hypolipidemia (FHBL2) due to loss-of-function mutations in ANGPTL3 gene. Objective A direct comparison of lipid phenotypes of these 2 conditions has never been carried out. In addition, although an increased prevalence of liver steatosis in FHBL1 has been consistently reported, the hepatic consequences of FHBL2 are not well established. Methods We investigated 350 subjects, 67 heterozygous carriers of APOB mutations, 63 carriers of the p.S17* mutation in ANGPTL3 (57 heterozygotes and …

0301 basic medicineMaleHepatic steatosisSettore MED/09 - Medicina InternaApolipoprotein BEndocrinology Diabetes and Metabolism030204 cardiovascular system & hematologymedicine.disease_causeANGPTL3 gene; APOB gene; Familial combined hypolipidemia; Familial hypobetalipoproteinemia; HDL cholesterol; Hepatic steatosis; Low cholesterol syndromesHypobetalipoproteinemiasExon0302 clinical medicineHDL cholesterolANGPTL3Nutrition and DieteticFamilial hypobetalipoproteinemiaGeneticsMutationNutrition and Dieteticsbiologyhepatic steatosisHomozygoteANGPTL3 geneMiddle AgedLow cholesterol syndromesPhenotypePhenotypelipids (amino acids peptides and proteins)FemaleCardiology and Cardiovascular MedicineANGPTL3 gene; APOB gene; familial combined hypolipidemia; familial hypobetalipoproteinemia; HDL cholesterol; hepatic steatosis; low cholesterol syndromesmedicine.medical_specialtyHeterozygoteLow cholesterol syndromeHepatic steatosi03 medical and health sciencesInternal medicineInternal MedicinemedicineHumansAPOB geneFamilial combined hypolipidemiaGeneAgedAngiopoietin-Like Protein 3Apolipoproteins Bbusiness.industryHeterozygote advantagemedicine.disease030104 developmental biologyEndocrinologyAngiopoietin-like ProteinsMutationbiology.proteinlow cholesterol syndromesSteatosisbusiness
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Molecular diagnosis of hypobetalipoproteinemia: an ENID review.

2007

Abstract Primary hypobetalipoproteinemia (HBL) includes a group of genetic disorders: abetalipoproteinemia (ABL) and chylomicron retention disease (CRD), with a recessive transmission, and familial hypobetalipoproteinemia (FHBL) with a co-dominant transmission. ABL and CRD are rare disorders due to mutations in the MTP and SARA2 genes, respectively. Heterozygous FHBL is much more frequent. FHBL subjects often have fatty liver and, less frequently, intestinal fat malabsorption. FHBL may be linked or not to the APOB gene. Most mutations in APOB gene cause the formation of truncated forms of apoB which may or may be not secreted into the plasma. Truncated apoBs with a size below that of apoB-3…

MaleCandidate geneSettore MED/09 - Medicina InternaApolipoprotein BGenotypeLocus (genetics)BiologyPolymorphism Single NucleotidePCSK9 GenemedicineHumansFamilial hypobetalipoproteinemiaGenetic TestingAPOB geneApolipoproteins BGeneticsPCSK9AbetalipoproteinemiaChylomicron retention diseasemedicine.diseaseEuropean Network for Inherited Dyslipidemia (ENID)AbetalipoproteinemiaPhenotypePCSK9 geneHypobetalipoproteinemia Familial Apolipoprotein BMutationbiology.proteinlipids (amino acids peptides and proteins)FemaleHypobetalipoproteinemiaMTP geneCardiology and Cardiovascular MedicineCarrier Proteinsuropean Network for Inherited Dyslipidemia (ENID)European Network for Inherited Dyslipidemia (ENID) Familial hypobetalipoproteinemia Abetalipoproteinemia Chylomicron retention disease.Chylomicron retention diseaseAtherosclerosis
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Homozygous familial hypobetalipoproteinemia: two novel mutations in the splicing sites of apolipoprotein B gene and review of the literature.

2015

Objective: Familial hypobetalipoproteinemia (FHBL) is autosomal codominant disorder of lipoprotein metabolism characterized by low plasma levels of total cholesterol (TC), low-density lipoproteincholesterol (LDL-C) and apolipoprotein B (apoB) below the 5 th percentile of the distribution in the population. Patients with the clinical diagnosis of homozygous FHBL (Ho-FHBL) are extremely rare and few patients have been characterized at the molecular level. Here we report the medical history and the molecular characterization of one paediatric patient with clinical features of Ho-FHBL. Methods: A one month old infant with failure to thrive, severe hypocholesterolemia and acanthocytosis was clin…

ProbandAdultMaleAcanthocytosiSettore MED/09 - Medicina InternaApolipoprotein BPopulationDNA Mutational AnalysisBiologyHypobetalipoproteinemiasExonHumanseducationGeneGeneticseducation.field_of_studyHomozygoteIntronInfantCholesterol LDLAbetalipoproteinemiaIntronsAlternative SplicingHomozygous familial hypobetalipoproteinemiaCholesterolRNA splicingApolipoprotein B-100Mutationbiology.proteinlipids (amino acids peptides and proteins)FemaleCardiology and Cardiovascular MedicineApolipoprotein BMinigeneAtherosclerosis
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Genetics of familial hypobetalipoproteinemia

2007

Primary hypobetalipoproteinemias include three monogenic disorders: the relatively frequent codominant familial hypobetalipoproteinemia (FHBL), the rare recessive conditions abetalipoproteinemia (ABL) and chylomicron retention disease (CMRD). Approximately 50% of FHBL patients are carriers of mutations in the APOB gene, mostly causing the formation of truncated forms of ApoB. In some kindred, FHBL is linked to a locus on chromosome 3 (3p21), but the candidate gene is still unknown. Recently, a FHBL-like phenotype was observed in carriers of mutations of the proprotein convertase subtilisin/kexin type 9 (PCSK9) gene causing loss-of-function of the encoded protein, a proprotein convertase tha…

hypobetalipoproteinemia; abetalipoproteinemia; Chylomicron retention diaseaseSettore MED/09 - Medicina InternaApolipoprotein BAssembly and secretion of ApoB-containing lipoproteinsApoB-containing lipoproteinsBiochemistryMicrosomal triglyceride transfer proteinabetalipoproteinemiaChylomicron retention diaseasemedicineFamilial hypobetalipoproteinemiaGeneticsbiologyPCSK9AbetalipoproteinemiahypobetalipoproteinemiaChylomicron retention diseasemedicine.diseaseProprotein convertaseAbetalipoproteinemiaLDL receptorbiology.proteinlipids (amino acids peptides and proteins)HypobetalipoproteinemiaAbetalipoproteinemia; ApoB-containing lipoproteins; Assembly and secretion of ApoB-containing lipoproteins; Chylomicron retention disease; Familial hypobetalipoproteinemiaChylomicron retention disease
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