title: Novel genes as primary triggers for polygenic hypertension.
abstract: OBJECTIVE
  The discovery of causative genes leading to hypertension in animal models can reveal new mechanistic insights into blood pressure (BP) regulations. Previously, we isolated segments that harbor BP quantitative trait loci (QTLs) on rat chromosome 10 as defined by congenic strains made from crosses of inbred hypertensive Dahl salt-sensitive (DSS) and normotensive Lewis rats. The aim of the current study was to identify hypertension-causing genes for each QTL.
  
  
  METHODS
  Molecular analysis was performed.
  
  
  RESULTS
  A systematic and comprehensive molecular analysis divulged particular genes that carry nonconserved mutations. Specifically, the proline rich 11 gene is likely responsible for C10QTL5. C10QTL1 is one of five genes, namely Benzodiazepine receptor associated protein 1, Loc689764, myotubularin related protein 4, protein phosphatase 1E, PP2C domain containing and ring finger protein 43. Loc100363423 with no known function is a candidate for C10QTL3. The ATP-binding cassette, subfamily A (ABC1), member 8a gene is probably responsible for C10QTL2.
  
  
  CONCLUSIONS
  Primary genes initiating polygenic hypertension are those not known to be involved in BP modulation. Novel pathways towards BP homeostasis appear to underlie the functionality of C10QTL5, C10QTL1 and C10QTL3 and C10QTL2. Moreover, these genes may become innovative targets for the diagnosis and therapeutics of essential hypertension.
authors: Research Centre, CRCHUM (Centre hospitalier de l'Université de Montréal), Department of Medicine, Université de Montréal, Montréal, Québec, Canada.
authors: Cristina
authors: C
authors: Chauvet
authors: Annie
authors: A
authors: Ménard
authors: Chunjie
authors: C
authors: Xiao
authors: Benjamin
authors: B
authors: Aguila
authors: Marilyne
authors: M
authors: Blain
authors: Julie
authors: J
authors: Roy
authors: Alan Y
authors: AY
authors: Deng
mesh_terms: D000818:Animals; D001483:Base Sequence; D001794:Blood Pressure; D017931:DNA Primers; D020022:Genetic Predisposition to Disease; D006706:Homeostasis; D006801:Humans; D006973:Hypertension / Q000235:genetics* / Q000503:physiopathology; D009154:Mutation; D040641:Quantitative Trait Loci; D051381:Rats; D020303:Rats, Inbred Dahl; D011917:Rats, Inbred Lew; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D017931:DNA Primers