{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T12:27:06Z","timestamp":1793622426456,"version":"4.5.0"},"reference-count":29,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T00:00:00Z","timestamp":1792368000000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Calcium channel blockers (CCBs) are frequently prescribed to manage hypertension in patients with heart failure with preserved ejection fraction (HFpEF). However, whether individual dihydropyridine agents exert uniform class effects on myocardial wall stress remains unclear.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective, single-center observational study analyzed 465 consecutive patients with hypertension and HFpEF (354 women and 111 men) evaluated at Kumamoto Kinoh Hospital between May 2012 and July 2018. Multivariable linear regression models assessed associations between individual dihydropyridine CCBs (amlodipine vs nifedipine) and plasma log-transformed B-type natriuretic peptide (lnBNP) levels.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In multiple imputation models among women, adjusted differences in lnBNP relative to no-CCB were 0.236 (95% CI, 0.031 to 0.441) for nifedipine and \u22120.118 (95% CI, \u22120.273 to 0.037) for amlodipine. Direct linear contrasts in women confirmed lower lnBNP levels with amlodipine than with nifedipine (adjusted difference, \u22120.355; 95% CI, \u22120.562 to \u22120.147). In men, the corresponding amlodipine-vs-nifedipine difference was \u22120.051 (95% CI, \u22120.697 to 0.595; P\u2009=\u2009.876). The formal sex-by-drug interaction contrast in complete-case analysis yielded an adjusted difference of \u22120.424 (95% CI, \u22121.055 to 0.208; P\u2009=\u2009.188), with male precision constrained by sample size (7 male nifedipine users).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In women with hypertension and heart failure with preserved ejection fraction, amlodipine use was associated with lower adjusted ln(BNP) levels than nifedipine use. These observational findings challenge the assumption of an interchangeable dihydropyridine class effect on myocardial wall stress, suggesting that individual pharmacological profiles\u2014rather than uniform class-level equivalence\u2014warrant attention in clinical evaluations.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ajh\/hpag123","type":"journal-article","created":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T12:32:27Z","timestamp":1792413147000},"source":"Crossref","is-referenced-by-count":0,"title":["Amlodipine and nifedipine associations with B-type natriuretic peptide in women with hypertension and heart failure with preserved ejection fraction"],"prefix":"10.1093","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2734-5303","authenticated-orcid":false,"given":"Eisaku","family":"Harada","sequence":"first","affiliation":[{"name":"Division of Cardiovascular Medicine, Kumamoto Kinoh Hospital, Kumamoto Aging Research Institute , Kumamoto,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshihiro","family":"Yamada","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine, Kumamoto Kinoh Hospital, Kumamoto Aging Research Institute , Kumamoto,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuji","family":"Mizuno","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine, Kumamoto Kinoh Hospital, Kumamoto Aging Research Institute , Kumamoto,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9840-3347","authenticated-orcid":false,"given":"Yuichiro","family":"Arima","sequence":"additional","affiliation":[{"name":"Department of Anatomy, Faculty of Life Sciences, Kumamoto University , Kumamoto City,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makoto","family":"Muta","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine, Kumamoto Kinoh Hospital, Kumamoto Aging Research Institute , Kumamoto,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koichi","family":"Kikuta","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine, Kumamoto Kinoh Hospital, Kumamoto Aging Research Institute , Kumamoto,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hirofumi","family":"Yasue","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine, Kumamoto Kinoh Hospital, Kumamoto Aging Research Institute , 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