{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T00:40:25Z","timestamp":1782780025955,"version":"3.54.5"},"reference-count":12,"publisher":"American Society for Microbiology","issue":"4","license":[{"start":{"date-parts":[[2009,4,1]],"date-time":"2009-04-01T00:00:00Z","timestamp":1238544000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Antimicrob Agents Chemother"],"published-print":{"date-parts":[[2009,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Daptomycin is approved for treatment of\n            <jats:italic>Staphylococcus aureus<\/jats:italic>\n            bacteremia and right-sided endocarditis. Increases in daptomycin MICs have been associated with failure. A rabbit model of aortic valve endocarditis was used to determine whether MIC correlates with activity in vivo and whether a higher daptomycin dose can improve efficacy. Two related clinical\n            <jats:italic>S. aureus<\/jats:italic>\n            strains, one with a daptomycin MIC of 0.5 \u03bcg\/ml and the other with a MIC of 2 \u03bcg\/ml, were used to establish aortic valve endocarditis in rabbits. Daptomycin was administered once a day for 4 days at 12 mg\/kg of body weight or 18 mg\/kg to simulate doses in humans of 6 mg\/kg and 10 mg\/kg, respectively. Endocardial vegetations, spleens, and kidneys were harvested and quantitatively cultured. The strain with a MIC of 2 \u03bcg\/ml had a survival advantage over the strain with a MIC of 0.5 \u03bcg\/ml with &gt;100 times more organisms of the former in endocardial vegetations at the 12-mg\/kg dose in a dual-infection model. Both the 12-mg\/kg dose and the 18-mg\/kg dose completely eradicated the strain with a MIC of 0.5 from vegetations, spleens, and kidneys. The 12-mg\/kg dose was ineffective against the strain with a MIC of 2 in vegetations; the 18-mg\/kg dose produced a reduction of 3 log\n            <jats:sub>10<\/jats:sub>\n            units in CFU in vegetations compared to the controls, although in no rabbit were organisms completely eliminated. Increasing the dose of daptomycin may improve its efficacy for infections caused by strains with reduced daptomycin susceptibility.\n          <\/jats:p>","DOI":"10.1128\/aac.01307-08","type":"journal-article","created":{"date-parts":[[2009,1,27]],"date-time":"2009-01-27T01:44:41Z","timestamp":1233020681000},"page":"1463-1467","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":43,"title":["Relationship between Susceptibility to Daptomycin In Vitro and Activity In Vivo in a Rabbit Model of Aortic Valve Endocarditis"],"prefix":"10.1128","volume":"53","author":[{"given":"H. F.","family":"Chambers","sequence":"first","affiliation":[{"name":"San Francisco General Hospital, University of California San Francisco, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L.","family":"Basuino","sequence":"additional","affiliation":[{"name":"San Francisco General Hospital, University of California San Francisco, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B. A.","family":"Diep","sequence":"additional","affiliation":[{"name":"San Francisco General Hospital, University of California San Francisco, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Steenbergen","sequence":"additional","affiliation":[{"name":"Cubist Pharmaceuticals, Lexington, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Zhang","sequence":"additional","affiliation":[{"name":"Cubist Pharmaceuticals, Lexington, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Tattevin","sequence":"additional","affiliation":[{"name":"Pontchaillou University Hospital, Rennes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Alder","sequence":"additional","affiliation":[{"name":"Bayer HealthCare, Monteville, New Jersey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00247-06"},{"key":"e_1_3_2_3_2","doi-asserted-by":"crossref","first-page":"894","DOI":"10.1093\/infdis\/149.6.894","volume":"149","year":"1984","unstructured":"Chambers, H. F., C. J. Hackbarth, T. A. Drake, M. G. Rusnak, and M. A. Sande. 1984. Endocarditis due to methicillin-resistant Staphylococcus aureus in rabbits: expression of resistance to beta-lactam antibiotics in vivo and in vitro. J. Infect. Dis.149:894-903.","journal-title":"J. Infect. Dis."},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.47.4.1318-1323.2003"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa053783"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00039-06"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00559-07"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-0691.2008.02035.x"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.45.3.845-851.2001"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.41.11.5113-5120.2003"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00102-08"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.48.1.63-68.2004"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.38.9.3453-3456.2000"}],"container-title":["Antimicrobial Agents and Chemotherapy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/AAC.01307-08","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/AAC.01307-08","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T19:54:13Z","timestamp":1645473253000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.asm.org\/doi\/10.1128\/AAC.01307-08"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,4]]},"references-count":12,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2009,4]]}},"alternative-id":["10.1128\/AAC.01307-08"],"URL":"https:\/\/doi.org\/10.1128\/aac.01307-08","relation":{},"ISSN":["0066-4804","1098-6596"],"issn-type":[{"value":"0066-4804","type":"print"},{"value":"1098-6596","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,4]]},"assertion":[{"value":"2008-09-30","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2009-01-15","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2009-04-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}