Effects of pentoxifylline on inflammatory markers and blood pressure: a systematic review and meta-analysis of randomized controlled trials.

Academic Article

Abstract

  • INTRODUCTION: Pentoxifylline is a xanthine derivative with potential cardiovascular benefits. AIM: To evaluate the impact of pentoxifylline on blood pressure (BP) and plasma TNF-α, C-reactive protein (CRP) and IL-6 through a systematic review and meta-analysis of randomized controlled trials. METHODS: The protocol was registered (PROSPERO: CRD42016035988). The search included PUBMED, ProQuest, Scopus and EMBASE until 1 September 2015 to identify trials reporting BP or inflammatory markers during pentoxifylline therapy. Quantitative data synthesis was performed using a random-effects model, with weighted mean difference (WDF) and 95% confidence intervals (CIs) as summary statistics. RESULTS: Fifteen studies (16 treatment arms) were found to be eligible for inclusion. Meta-analysis did not suggest any effect of pentoxifylline on either SBP or DBP. Pentoxifylline treatment was associated with a significant reduction in plasma concentrations of TNF-α (WDF: -1.03 pg/ml, 95% CI: -1.54, -0.51; P < 0.001, 11 treatment arms) and CRP (WDF: -1.39 mg/l, 95% CI: -2.68, -0.10; P = 0.034, five treatment arms). No alteration in plasma IL-6 concentration was observed. The impact of pentoxifylline on plasma TNF-α levels was found to be positively associated with treatment duration (slope: 0.031; 95% CI: 0.004, 0.057; P = 0.023) but independent of pentoxifylline dose (slope: -0.0003; 95% CI: -0.002, 0.001; P = 0.687). CONCLUSION: Pentoxifylline did not alter BP or plasma IL-6 concentration, but significantly reduced circulating TNF-α and CRP concentrations.
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    Keywords

  • Biomarkers, Blood Pressure, C-Reactive Protein, Humans, Interleukin-6, Pentoxifylline, Phosphodiesterase Inhibitors, Randomized Controlled Trials as Topic, Tumor Necrosis Factor-alpha
  • Digital Object Identifier (doi)

    Author List

  • Brie D; Sahebkar A; Penson PE; Dinca M; Ursoniu S; Serban M-C; Zanchetti A; Howard G; Ahmed A; Aronow WS
  • Start Page

  • 2318
  • End Page

  • 2329
  • Volume

  • 34
  • Issue

  • 12