Ezetimibe reduces plant sterol accumulation and favorably increases platelet count in sitosterolemia

  • Othman R
  • Myrie S
  • Mymin D
 et al. 
  • 13

    Readers

    Mendeley users who have this article in their library.
  • 15

    Citations

    Citations of this article.

Abstract

Objective: To assess if ezetimibe (EZE), a sterol-absorption inhibitor, improves platelet (PLT) count and size relative to its effect on plasma plant sterol (PS) in patients with sitosterolemia (STSL). Study design: Patients with STSL (5 males, 3 females, 16-56 years of age) receiving EZE intervention as part of their routine care participated in this study. EZE was discontinued for 14 weeks (off) and then resumed for another 14 weeks (on). Hematology variables along with plasma and red blood cells (RBC) PS and total cholesterol (TC) levels were measured at the end of each phase. Results: EZE increased PLT count (23% ± 9%) and decreased mean PLT volume (MPV; 10% ± 3%, all P < .05). In patients off EZE, PLT counts inversely correlated (r = -0.96 and r = -0.91, all P < .01) with plasma and RBC PS to TC ratio (PS/TC), and MPV positively correlated (r = 0.91, P = .03 and r = 0.93, P = .02) with plasma and RBC PS/TC. EZE reduced plasma and RBC sitosterol (-35% ± 4% and -28% ± 3%), total PS (-37% ± 4% and -28% ± 3%, all P < .0001) levels, and PS/TC (-27% ± 4% and -28% ± 4%, P < .01). Conclusions: EZE reduces plasma and RBC PS levels, while increasing PLT count and decreasing MPV, and thereby may reduce the risk for bleeding in STSL. Plasma PS levels and ABCG5/ABCG8 genes should be analyzed in patients with unexplained hematologic abnormalities.

Author-supplied keywords

  • ABC
  • Adenosine triphosphate-binding cassette
  • EZE
  • Ezetimibe
  • Hb
  • Hemoglobin
  • LDL
  • Low-density lipoprotein
  • MCHC
  • MPV
  • Mean PLT volume
  • Mean corpuscular hemoglobin concentration
  • PLT
  • PS
  • PS to TC ratio
  • PS/TC
  • Plant sterol
  • Platelet
  • RBC
  • RDW
  • Red blood cells
  • Red cell distribution width
  • STSL
  • Sitosterolemia
  • TC
  • Total cholesterol

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Rgia A. Othman

  • Semone B. Myrie

  • David Mymin

  • Louise S. Merkens

  • Jean Baptiste Roullet

  • Robert D. Steiner

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free