https://www.selleckchem.com/products/r-hts-3.html
156±0.133 versus 0.254±0.166 beats per minute/[isoproterenol ng/mL]; P less then 0.001). Seven of 13 HFpEF subjects had β-receptor sensitivity similar to senior controls but still had lower peak HRs (122±14 versus 156±15 beats per minute; P less then 0.001). CONCLUSIONS Contrary to our hypothesis, patients with HFpEF displayed impaired cardiac β-receptor sensitivity compared with senior controls. In the 7 out of 13 patients with HFpEF with age-appropriate β-receptor sensitivity, peak HR remained low, suggesting impaired sinus node β-rec
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