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- W2321818169 abstract "Hypothesis In this developmental research study that aimed to develop tympanic membrane regeneration therapy, we devised a method of sustained bFGF formulation release using gelatin hydrogel in a guinea pig eardrum perforation model. Background Basic fibroblast growth factor (bFGF) can promote perforation closure. In addition, several studies of bFGF formulations have used gelatin hydrogel–bFGF coupled electrostatically to a gelatin polymer. BFGF is released gradually as a result of degradation of the gelatin polymer, and studies have shown that the long-term pharmacologic effects of bFGF can be maintained. Methods Using a CO2 laser, total tympanic membrane perforations were created in 24 guinea pig ears and divided into 3 groups: the bFGF-gelatin hydrogel group(n = 8), the saline-gelatin hydrogel group (n = 8), and the control group (n = 8). Either a bFGF formulation or saline was impregnated into gelatin hydrogen and implanted into the perforated tympanic membrane. Results All ear drums of the control group showed large perforations at even the 30th postoperative day. The perforation persisted in 3 of 8 ears in the saline-gelatin hydrogel group, and the tympanic membranes that had achieved closure were thinned, whereas all ears in the bFGF-gelatin hydrogel group achieved closure of the perforation. In the ears in which a normal tympanic membrane had regenerated, histologic observation with hematoxylin and eosin staining revealed that, although mucosal and epithelial layer regeneration had occurred in the saline-gelatin hydrogel group, the bFGF-gelatin hydrogel group showed regeneration of the fibrous layer in addition to the other 2 layers. Conclusion These data suggest that hydrogel impregnated with bFGF induces regeneration of the tympanic membrane and can conservatively treat tympanic membrane perforation." @default.
- W2321818169 created "2016-06-24" @default.
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- W2321818169 date "2014-03-01" @default.
- W2321818169 modified "2023-10-14" @default.
- W2321818169 title "Gelatin Hydrogel With Basic Fibroblast Growth Factor for Tympanic Membrane Regeneration" @default.
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- W2321818169 doi "https://doi.org/10.1097/mao.0000000000000200" @default.
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