{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T02:55:17Z","timestamp":1768704917679,"version":"3.49.0"},"reference-count":52,"publisher":"IOP Publishing","issue":"4","license":[{"start":{"date-parts":[[2020,5,28]],"date-time":"2020-05-28T00:00:00Z","timestamp":1590624000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2020,5,28]],"date-time":"2020-05-28T00:00:00Z","timestamp":1590624000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Biomed. Mater."],"published-print":{"date-parts":[[2020,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Osteoporosis is a severe health problem causing bone fragility and consequent fracture. Titanium (Ti) implants, used in patients with osteoporotic fractures, are prone to failure because of the decreased bone mass and strength. Therefore, it is of utmost importance to fabricate implants possessing osteogenic properties to improve implant osseointegration. To improve the long-term survival rate of Ti implants in osteoporotic patients, hyaluronic acid\/\u03f5-polylysine multilayers containing the parathyroid hormone (PTH)-related protein (PTHrP) were deposited on Ti implants by a layer-by-layer (LBL) electro assembly technique. The murine pre-osteoblast cell line MC3T3-E1, possessing a high potential of osteoblast differentiation, was used to evaluate the osteo-inductive effects of Ti-LBL-PTHrP\n                    <jats:italic>in vitro<\/jats:italic>\n                    . In addition, the performance of the Ti (Ti-LBL-PTHrP) implant was evaluated\n                    <jats:italic>in vivo<\/jats:italic>\n                    in a femoral intramedullary implantation in Sprague Dawley rats. The Ti-LBL-PTHrP implant regulated the release of the loaded PTHrP to increase bone formation in the early stage of implantation. The\n                    <jats:italic>in vitro<\/jats:italic>\n                    results revealed that cells on Ti-LBL-PTHrP did not show any evident proliferation, but a high level of alkaline phosphatase activity and osteoblast-related protein expression was found, compared to the uncoated Ti group (\n                    <jats:italic>p<\/jats:italic>\n                    &lt; 0.05). In addition,\n                    <jats:italic>in vivo<\/jats:italic>\n                    micro-CT and histological analysis demonstrated that the Ti-LBL-PTHrP implants could significantly promote the formation and remodeling of new bone in osteoporotic rats at 14 d after implantation. Overall, this study established a profound and straightforward methodology for the manufacture of biofunctional Ti implants for the treatment of osteoporosis.\n                  <\/jats:p>","DOI":"10.1088\/1748-605x\/ab7b3d","type":"journal-article","created":{"date-parts":[[2020,2,28]],"date-time":"2020-02-28T17:30:36Z","timestamp":1582911036000},"page":"045011","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":15,"title":["Enhancement of local bone formation on titanium implants in osteoporotic rats by biomimetic multilayered structures containing parathyroid hormone (PTH)-related protein"],"prefix":"10.1088","volume":"15","author":[{"given":"Jiahao","family":"Tang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deyi","family":"Yan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liang","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zijian","family":"Shen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bingzhang","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sheji","family":"Weng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zongyi","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhongjie","family":"Xie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kanghao","family":"Fang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenxuan","family":"Hong","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Xie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9998-3179","authenticated-orcid":false,"given":"Lei","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liyan","family":"Shen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"266","published-online":{"date-parts":[[2020,5,28]]},"reference":[{"key":"bmmab7b3dbib1","doi-asserted-by":"publisher","first-page":"1761","DOI":"10.1016\/S0140-6736(02)08657-9","type":"journal-article","volume":"359","author":"Cummings","year":"2002","journal-title":"Lancet"},{"key":"bmmab7b3dbib2","doi-asserted-by":"publisher","first-page":"2701","DOI":"10.1007\/s00198-013-2392-8","type":"journal-article","volume":"24","author":"Konstantinidis","year":"2013","journal-title":"Osteoporosis Int."},{"key":"bmmab7b3dbib3","doi-asserted-by":"publisher","first-page":"S36","DOI":"10.1007\/s00198-004-1728-9","type":"journal-article","volume":"16","author":"Augat","year":"2005","journal-title":"Osteoporosis Int."},{"key":"bmmab7b3dbib4","doi-asserted-by":"publisher","first-page":"202","DOI":"10.1016\/j.injury.2009.06.218","type":"journal-article","volume":"40","author":"Kanakaris","year":"2009","journal-title":"Injury Extra"},{"key":"bmmab7b3dbib5","doi-asserted-by":"publisher","first-page":"418","DOI":"10.1038\/nrendo.2015.71","type":"journal-article","volume":"11","author":"Reid","year":"2015","journal-title":"Nat. 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