PMID- 21146687 OWN - NLM STAT- MEDLINE DCOM- 20110208 LR - 20181201 IS - 1879-1913 (Electronic) IS - 0002-9149 (Linking) VI - 107 IP - 1 DP - 2011 Jan TI - Differential effect of telmisartan and amlodipine on monocyte chemoattractant protein-1 and peroxisome proliferator-activated receptor-gamma gene expression in peripheral monocytes in patients with essential hypertension. PG - 59-63 LID - 10.1016/j.amjcard.2010.08.048 [doi] AB - Monocyte chemoattractant protein-1 (MCP-1) and peroxisome proliferator-activated receptor-gamma (PPAR-gamma) play a significant role in monocyte activation, vascular inflammation, and atherogenesis. Angiotensin receptor blockers and calcium channel blockers are antihypertensive drugs with established efficacy and a favorable safety profile. We investigated the effect of telmisartan--an angiotensin receptor blocker with PPAR-gamma agonist activity--and amlodipine on the activation state of peripheral blood monocytes with respect to MCP-1 and PPAR-gamma gene expression in hypertensives. We recruited 31 previously untreated patients with essential hypertension who were randomly assigned to receive treatment with telmisartan (n = 16) or amlodipine (n = 15). Blood samples were taken before and 3 months after therapy initiation. Mononuclear cells were isolated and mRNAs of MCP-1 and PPAR-gamma were estimated by real-time quantitative reverse transcription-polymerase chain reaction each time. The 2 treatments decreased all blood pressure components significantly (p <0.001). In contrast, in the amlodipine group, MCP-1 gene expression was significantly downregulated after treatment with telmisartan (from 21.4 +/- 20.5 to 8.1 +/- 6.5, p = 0.009), whereas the amlodipine group did not show any significant change (12.5 +/- 8.5 vs 17.6 +/- 16.4, p = NS). In addition, PPAR-gamma mRNA levels showed a significant increase in telmisartan-treated patients (from 20 +/- 18.5 to 42.6 +/- 36, p = 0.006) and no significant alterations in the amlodipine group (from 29.6 +/- 42.5 to 24.2 +/- 27.7, p = NS). In conclusion, treatment with telmisartan results in a significant attenuation of MCP-1 gene expression and an increase of PPAR-gamma gene expression in peripheral monocytes in patients with essential hypertension. Our findings may provide new insights into the cardiovascular protection of telmisartan in hypertensives. CI - Copyright (c) 2011. Published by Elsevier Inc. FAU - Marketou, Maria E AU - Marketou ME AD - Cardiology Department, Heraklion University Hospital, Crete, Greece. FAU - Kontaraki, Joanna E AU - Kontaraki JE FAU - Tsakountakis, Nikolaos A AU - Tsakountakis NA FAU - Zacharis, Evangelos A AU - Zacharis EA FAU - Kochiadakis, George E AU - Kochiadakis GE FAU - Arfanakis, Dimitris A AU - Arfanakis DA FAU - Parthenakis, Frangiskos AU - Parthenakis F FAU - Chlouverakis, Gregory AU - Chlouverakis G FAU - Vardas, Panos E AU - Vardas PE LA - eng PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - Am J Cardiol JT - The American journal of cardiology JID - 0207277 RN - 0 (Antihypertensive Agents) RN - 0 (Benzimidazoles) RN - 0 (Benzoates) RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (PPAR gamma) RN - 1J444QC288 (Amlodipine) RN - U5SYW473RQ (Telmisartan) SB - IM MH - Amlodipine/*pharmacology/therapeutic use MH - Antihypertensive Agents/*pharmacology/therapeutic use MH - Benzimidazoles/*pharmacology/therapeutic use MH - Benzoates/*pharmacology/therapeutic use MH - Chemokine CCL2/drug effects/*genetics MH - Female MH - Gene Expression/drug effects MH - Humans MH - Hypertension/*drug therapy MH - Male MH - Middle Aged MH - Monocytes/*drug effects MH - PPAR gamma/*genetics MH - Severity of Illness Index MH - Telmisartan EDAT- 2010/12/15 06:00 MHDA- 2011/02/09 06:00 CRDT- 2010/12/15 06:00 PHST- 2010/06/10 00:00 [received] PHST- 2010/08/24 00:00 [revised] PHST- 2010/08/24 00:00 [accepted] PHST- 2010/12/15 06:00 [entrez] PHST- 2010/12/15 06:00 [pubmed] PHST- 2011/02/09 06:00 [medline] AID - S0002-9149(10)01731-5 [pii] AID - 10.1016/j.amjcard.2010.08.048 [doi] PST - ppublish SO - Am J Cardiol. 2011 Jan;107(1):59-63. doi: 10.1016/j.amjcard.2010.08.048.