Comparative effects of nebivolol and metoprolol on red cell distribution width and neutrophil/lymphocyte ratio in patients with newly diagnosed essential hypertension

J Cardiovasc Pharmacol. 2013 Oct;62(4):388-93. doi: 10.1097/FJC.0b013e31829f716a.

Abstract

High level of circulating red cell distribution width (RDW) and neutrophil/lymphocyte (N/L) ratio may reflect ongoing vascular inflammation and play an important role in pathophysiology of hypertension. We evaluate the effects of nebivolol and metoprolol on the RDW and N/L in new essential hypertensive patients. After baseline assessment, 72 patients were randomly allocated to 5 mg/d of nebivolol (n = 37, 20 men) or 100 mg/d of metoprolol (n = 35, 18 men) and treated for 6 months. Blood pressure (BP), heart rate (HR), RDW, and N/L were measured before and after treatment. BP significantly decreased with both drugs (P < 0.001). Analog reduction was observed for resting HRs (P < 0.001), but metoprolol caused greater HR fall as compared with nebivolol (P < 0.001). After 6 months of treatment, nebivolol significantly lowered not only RDW but also the total white blood cell and N/L (P < 0.001, P = 0.023, P = 0.017, respectively). No changes were observed in metoprolol group. Percent decrease in RDW was found to be significantly higher in nebivolol than in the metoprolol group (P = 0.001) and remained also after correction for confounders (P = 0.012). Nebivolol improved RDW and N/L to a greater extent than metoprolol in patients with hypertension. These favorable effects may participate, together with the BP reduction, at the favorable properties of the drug in hypertension.

Publication types

  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Antihypertensive Agents / pharmacology*
  • Antihypertensive Agents / therapeutic use
  • Benzopyrans / pharmacology*
  • Benzopyrans / therapeutic use
  • Blood Pressure / drug effects
  • Double-Blind Method
  • Erythrocyte Indices
  • Essential Hypertension
  • Ethanolamines / pharmacology*
  • Ethanolamines / therapeutic use
  • Female
  • Heart Rate / drug effects
  • Humans
  • Hypertension / drug therapy*
  • Leukocyte Count
  • Lymphocytes / drug effects
  • Lymphocytes / metabolism
  • Male
  • Metoprolol / pharmacology*
  • Metoprolol / therapeutic use
  • Middle Aged
  • Nebivolol
  • Neutrophils / drug effects
  • Neutrophils / metabolism
  • Prospective Studies
  • Treatment Outcome

Substances

  • Antihypertensive Agents
  • Benzopyrans
  • Ethanolamines
  • Nebivolol
  • Metoprolol