PMID- 18716362 OWN - NLM STAT- MEDLINE DCOM- 20080909 LR - 20220311 IS - 0916-9636 (Print) IS - 0916-9636 (Linking) VI - 31 IP - 6 DP - 2008 Jun TI - Combination therapy with renin-angiotensin system inhibitors and the calcium channel blocker azelnidipine decreases plasma inflammatory markers and urinary oxidative stress markers in patients with diabetic nephropathy. PG - 1147-55 LID - 10.1291/hypres.31.1147 [doi] AB - A calcium channel blocker (CCB), azelnidipine (AZ), is reported to inhibit oxidative stresses, particularly when administered under blockade of the renin-angiotensin system (RAS). The purpose of this study was to investigate whether AZ inhibits oxidative stresses more potently than other CCBs under blockade of RAS and exerts renoprotection in type 2 diabetic nephropathy. Subjects were hypertensive type 2 diabetics with nephropathy, taking RAS inhibitors. The patients were randomly assigned to two groups, an AZ group (n=21, 16 mg/d) and a nifedipine-CR (NF) group (n=17, 40 mg/d). The plasma levels of monocyte chemoattractant protein-1 (MCP-1), interleukin-6 (IL-6), high-sensitive C-reactive protein (hsCRP), adiponectin and tumor necrosis factor-alpha (TNF(alpha)), the urinary excretion of 8-epi-prostaglandin F(2alpha) (8-epi-PGF(2alpha)) and 8-hydroxydeoxyguanosine (8-OHdG), and the urinary albumin-to-creatinine ratios (ACR) were determined before and after 16-week treatment. Neither metabolic parameters nor blood pressure levels differed between the two groups not only at baseline but also after the treatment. However, significant decreases in MCP-1, IL-6, hsCRP, TNF(alpha), 8-epi-PGF(2alpha), 8-OHdG and ACR levels, and a significant increase in the plasma adiponectin level were detected in the AZ group, but not in the NF group. The % change in the urinary oxidative stress markers correlated with that in ACR. Our results indicate that, in hypertensive patients with diabetic nephropathy, a combination therapy of RAS inhibitors and AZ is an effective therapeutic modality for decreasing not only blood pressure but also inflammations and oxidative stresses. FAU - Ogawa, Susumu AU - Ogawa S AD - Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, Aoba-ku, Sendai, Japan. ogawa-s@mail.tains.tohoku.ac.jp FAU - Mori, Takefumi AU - Mori T FAU - Nako, Kazuhiro AU - Nako K FAU - Ito, Sadayoshi AU - Ito S LA - eng PT - Journal Article PT - Randomized Controlled Trial PL - England TA - Hypertens Res JT - Hypertension research : official journal of the Japanese Society of Hypertension JID - 9307690 RN - 0 (Angiotensin II Type 1 Receptor Blockers) RN - 0 (Angiotensin-Converting Enzyme Inhibitors) RN - 0 (Calcium Channel Blockers) RN - 0 (Dihydropyridines) RN - 0 (Interleukin-6) RN - 27415-26-5 (8-epi-prostaglandin F2alpha) RN - 5GZ3E0L9ZU (Azetidinecarboxylic Acid) RN - 88847-89-6 (8-Hydroxy-2'-Deoxyguanosine) RN - 9007-41-4 (C-Reactive Protein) RN - AYI8EX34EU (Creatinine) RN - B7IN85G1HY (Dinoprost) RN - G9481N71RO (Deoxyguanosine) RN - PV23P19YUG (azelnidipine) SB - IM MH - 8-Hydroxy-2'-Deoxyguanosine MH - Adult MH - Aged MH - Angiotensin II Type 1 Receptor Blockers/*administration & dosage MH - Angiotensin-Converting Enzyme Inhibitors/*administration & dosage MH - Azetidinecarboxylic Acid/administration & dosage/*analogs & derivatives MH - C-Reactive Protein/analysis MH - Calcium Channel Blockers/*administration & dosage MH - Creatinine/urine MH - Deoxyguanosine/analogs & derivatives/urine MH - Diabetic Nephropathies/*drug therapy/metabolism MH - Dihydropyridines/*administration & dosage MH - Dinoprost/analogs & derivatives/urine MH - Drug Therapy, Combination MH - Female MH - Humans MH - Interleukin-6/blood MH - Male MH - Middle Aged MH - *Oxidative Stress EDAT- 2008/08/22 09:00 MHDA- 2008/09/10 09:00 CRDT- 2008/08/22 09:00 PHST- 2008/08/22 09:00 [pubmed] PHST- 2008/09/10 09:00 [medline] PHST- 2008/08/22 09:00 [entrez] AID - JST.JSTAGE/hypres/31.1147 [pii] AID - 10.1291/hypres.31.1147 [doi] PST - ppublish SO - Hypertens Res. 2008 Jun;31(6):1147-55. doi: 10.1291/hypres.31.1147.