title: Peripheral Blood Mononuclear Cell ABCA1 Transcripts and Protein Expression in Acute Myocardial Infarction.
abstract: BACKGROUND
  ATP binding cassette transporter-A1 (ABCA1) facilitates the formation of high density lipoprotein (HDL). HDL due to its anti-atherosclerotic, anti-inflammatory and anti-thrombotic activities provides protection against atherothrombosis or myocardial infarction (MI). The aim was to investigate the role of peripheral blood mononuclear cell (PBMNC) ABCA1 expression in MI.
  
  
  METHODS
  The participants comprised 29 males with acute MI (AMI) and 20 healthy controls. AMI patients were normotensive, not on statins, with triglycerides < 200mg/dl and categorized into AMI with type 2 diabetes (T2DM) (N = 12) and without T2DM (N = 17). The PBMNC ABCA1 mRNA transcripts were analysed by quantitative real-time polymerase chain reaction (qRTPCR) and protein by enzyme linked immunosorbent assay (ELISA).
  
  
  RESULTS
  PBMNC ABCA1 mRNA transcript and protein levels were not significantly different in AMI patients or when sub-grouped into with/without T2DM, as compared to controls. ABCA1 protein correlated positively with HDL-cholesterol (r = 0.655, p = 0.021) in AMI patients with T2DM and negatively with age (r = - 0.525, p = 0.031) in AMI patients without T2DM and it was more strongly associated in latter group with smoking and alcohol habit.
  
  
  CONCLUSIONS
  In the present study, the effects of metabolites of diabetes and ischemia were observed on PBMNC ABCA1 protein and thus on HDL-C in AMI patients. Further influence of risk factors such as smoking and alcohol consumption observed in the present study can be evaluated in larger sample size. The control of these cardiovascular associated risk factors may increase stability of PBMNC ABCA1 protein and thus HDL-C levels.
authors.affiliation: Sir H. N. Medical Research Society, Sir H. N. Hospital and Research Centre, Mumbai, India.
authors.forename: Kavita
authors.initials: K
authors.lastname: Shalia
authors.affiliation: School of Science, NMIMS (Deemed-to-be) University, Mumbai, India.
authors.forename: Dhananjaya
authors.initials: D
authors.lastname: Saranath
authors.affiliation: Sir H. N. Hospital and Research Centre, Mumbai, India.
authors.forename: Vinod K
authors.initials: VK
authors.lastname: Shah
mesh_terms: D064286:ATP Binding Cassette Transporter 1 / Q000235:genetics* / Q000378:metabolism*; D000208:Acute Disease; D000328:Adult; D001774:Blood Chemical Analysis; D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000150:complications / Q000235:genetics; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood* / Q000150:complications / Q000235:genetics*; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000378:metabolism; D012307:Risk Factors; D013223:Statistics as Topic
chemical_list: D064286:ATP Binding Cassette Transporter 1; D012333:RNA, Messenger
keywords: ATP-binding cassette transporter A1 (ABCA1); gene expression; high density lipoprotein; mRNA transcript; myocardial infarction; peripheral blood mononuclear cells