Abstract 472: Effect of Different Doses of Angiotensin II Receptor Blockers on Adipokine Levels in Hypertensive Patients

2014 ◽  
Vol 34 (suppl_1) ◽  
Author(s):  
Marina Shargorodsky

The present study was designed to determine the effect of different doses of the angiotensin II receptor blocker, candesartan, on circulating adiponectin and leptin levels as well as plasma leptin adiponectin ratio (LAR) in hypertensive patients with multiple cardiovascular risk factors. 69 hypertensive patients were randomized to 3 groups: group 1 included patients treated with high doses of Candesartan (32mg), group 2 included patients treated with conventional doses of Candesartan (16mg), group 3 included patients that received antihypertensive treatment other that ARBs or ACEIs. Patients were evaluated for lipid profile, HbA1C, insulin, C-peptide, CRP, aldosterone, renin,HOMA-IR, leptin , adiponectin and LAR. Baseline adiponectin, leptin and LAR levels did not differ significantly between the three groups. After six months of treatment LAR was significantly higher in group 3 than group 1 (p=0.007) or group 2 (p=0.023). Marginal across-group differences were detected for post-treatment circulating adiponectin level (p=0.064). Univariate GLM analysis of posttreatment LAR detected significant by-group differences even after adjustment for age, sex, baseline values of LAR and blood pressure. In this model, group was the only significant predictor of LAR after controlling for these variables. Treatment with high doses of angiotensin II receptor blocker, candesartan, is associated with significantly reduced LAR and marginally increased circulating adiponectin levels in hypertensive patients with multiple cardiovascular risk factors.

2007 ◽  
Vol 30 (12) ◽  
pp. 1187-1192 ◽  
Author(s):  
Mitsuru OHISHI ◽  
Takashi TAKAGI ◽  
Norihisa ITO ◽  
Yuji TATARA ◽  
Norihiro HAYASHI ◽  
...  

1999 ◽  
Vol 90 (5) ◽  
pp. 1354-1362 ◽  
Author(s):  
Marc De Kock ◽  
Philippe Gautier ◽  
Athanassia Pavlopoulou ◽  
Marc Jonniaux ◽  
Patricia Lavand'homme

Background The rationale of this study was to compare high-dose epidural clonidine with a more commonly used agent, such as bupivacaine. This was performed to give a more objective idea of the relative analgesic potency of epidural clonidine. Methods Sixty patients undergoing intestinal surgery during propofol anesthesia were studied. At induction, the patients received epidurally a dose of 10 micrograms/kg [corrected] clonidine in 7 ml saline followed by an infusion of 6 micrograms [corrected] x kg(-1) x h(-1) (7 ml/h) (group 1, n = 20), a dose of 7 ml bupivacaine, 0.5%, followed by 7 ml/h bupivacaine, 0.25% (group 2, n = 20), or a dose of 7 ml bupivacaine, 0.25%, followed by 7 ml/h bupivacaine, 0.125% (group 3, n = 20). Intraoperatively, increases in arterial blood pressure or heart rate not responding to propofol (0.5 mg/kg) were treated with intravenous alfentanil (0.05 mg/kg). Additional doses of propofol were given to maintain an adequate bispectral index. The epidural infusions were maintained for 12 h. In cases of subjective visual analogue pain scores up to 5 cm at rest or up to 8 cm during coughing, the patients were given access to a patient-controlled analgesia device. Results During anesthesia, patients in group 1 required less propofol than those in groups 2 and 3 (78 [36-142] mg vs. 229 [184-252] mg and 362 [295-458] mg; P < 0.05) and less alfentanil than patients in group 3 (0 [0-0] mg vs. 11 [6-20] mg; P < 0.05). Analgesia lasted 380 min (range, 180-645 min) in group 1 versus 30 min (range, 25-40 min) in group 2 and 22 min (range, 12.5-42 min) in group 3 (P < 0.05). There was no suggestion of a hemodynamic difference among the three groups except for heart rates that were significantly reduced in patients in group 1. Sedation scores were significantly higher in this group during the first 2 h postoperatively. Conclusion Our results show that high doses of epidural clonidine potentiate general anesthetics and provide more efficient postoperative analgesia than the two bupivacaine dosage regimens investigated.


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