Effect of basic fibroblast growth factor on perforated chinchilla tympanic membranes

Norman R. Friedman, Charles G. Wright, Karen S. Pawlowski, William L. Meyerhoff

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Basic fibroblast growth factor (bFGF) is a polypeptide mitogen which stimulates proliferation of epidermal and connective tissue cells. When applied to tympanic membrane perforations it has been reported to enhance healing and produce connective tissue hyperplasia. Previous work with animal models has shown that hyperplastic alterations of the tympanic membrane play an essential role in cholesteatoma development. This study was designed to further investigate the hyperplastic effects of bFGF and to determine if it might induce cholesteatoma formation during the healing process. Ten chinchillas received bilateral tympanic membrane perforations. In each animal, three doses of bFGF (400 nanograms per dose) were applied to the perforated tympanic membrane on one side; the opposite (control) ear received saline alone. The animals were terminated at either two or four weeks and studied histologically. Although the dosage and administration schedule used were consistent with previous studies utilizing other re-dent species, there was little evidence that bFGF affected tympanic membrane healing in chinchillas. In both control and bFGF-treated ears, dense connective tissue occupied the lamina propria of the tympanic membrane, providing an effective barrier against ingrowth of skin toward the middle ear. No cholesteatomas developed in any animals included in the study. The results of this work indicate that the risk of cholesteatoma formation following administration of bFGF is minimal when it is applied short-term to acute perforations.

Original languageEnglish (US)
Pages (from-to)559-564
Number of pages6
JournalEar, Nose and Throat Journal
Volume76
Issue number8
StatePublished - Aug 1997

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Chinchilla
Tympanic Membrane
Fibroblast Growth Factor 2
Cholesteatoma
Tympanic Membrane Perforation
Connective Tissue
Ear
Connective Tissue Cells
Middle Ear
Mitogens
Hyperplasia
Appointments and Schedules
Mucous Membrane
Animal Models
Skin
Peptides

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Friedman, N. R., Wright, C. G., Pawlowski, K. S., & Meyerhoff, W. L. (1997). Effect of basic fibroblast growth factor on perforated chinchilla tympanic membranes. Ear, Nose and Throat Journal, 76(8), 559-564.

Effect of basic fibroblast growth factor on perforated chinchilla tympanic membranes. / Friedman, Norman R.; Wright, Charles G.; Pawlowski, Karen S.; Meyerhoff, William L.

In: Ear, Nose and Throat Journal, Vol. 76, No. 8, 08.1997, p. 559-564.

Research output: Contribution to journalArticle

Friedman, NR, Wright, CG, Pawlowski, KS & Meyerhoff, WL 1997, 'Effect of basic fibroblast growth factor on perforated chinchilla tympanic membranes', Ear, Nose and Throat Journal, vol. 76, no. 8, pp. 559-564.
Friedman NR, Wright CG, Pawlowski KS, Meyerhoff WL. Effect of basic fibroblast growth factor on perforated chinchilla tympanic membranes. Ear, Nose and Throat Journal. 1997 Aug;76(8):559-564.
Friedman, Norman R. ; Wright, Charles G. ; Pawlowski, Karen S. ; Meyerhoff, William L. / Effect of basic fibroblast growth factor on perforated chinchilla tympanic membranes. In: Ear, Nose and Throat Journal. 1997 ; Vol. 76, No. 8. pp. 559-564.
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