Effects of crosslinked dextran in hydroxylpropyl methylcellulose on soft tissue augmentation in rats

Rohani B. Cena, Jun Gyu Park, Hyun Jeong Kim, Kyu Yeol Son, Deok Song Kim, Mun Il Kang, Sang Ik Park, Du Geon Moon, Dae Yul Yang, Dong Soo Yu, Jae Il Lee, Kyoung Oh Cho

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    This study compared crosslinked dextrans in hydroxylpropyl methycellulose (DiHMs, pH 5 or 7) with polymethylmethacrylate in bovine collagen (PMMA) and hyaluronic acid (HA) fillers on soft tissue augmentation and safety in rats. HA tended to maintain its size throughout the experimental period but was moveable and friable because of a lack of thick fibroconnective tissue formation. Although, PMMA induced moderately thick fibroconnective tissue formation, its size was decreased markedly from 3-week postimplantation (PI) and became the smallest at 24-month PI. DiHM (pH 7) elicited strong fibrous encapsulation around the filler. Its size decreased slowly but was still considerably maintained at 24-month PI. In contrast, the rate of the DiHM (pH 5) size decrease was slower than that of PMMA, faster DiHM (pH 7), but comparable to HA. Immunohistochemically, types I and III collagens were deposited inside and outside DiHMs (pH 5 and 7). DiHMs (pH 5 and 7), PMMA, and HA showed no adverse reactions. These results suggest that DiHM (pH 7) assures efficacy and safety and is a good candidate for soft tissue augmentation in both humans and animals.

    Original languageEnglish
    Pages (from-to)131-140
    Number of pages10
    JournalJournal of Biomedical Materials Research - Part B Applied Biomaterials
    Volume102
    Issue number1
    DOIs
    Publication statusPublished - 2014 Jan

    Keywords

    • crosslinked dextrans
    • rat
    • safety
    • subcutaneous augmentation

    ASJC Scopus subject areas

    • Biomaterials
    • Biomedical Engineering

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