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Revisiting the Role of the Myofibroblast in Socket Surgery: An Immunohistochemical Study. | LitMetric

Revisiting the Role of the Myofibroblast in Socket Surgery: An Immunohistochemical Study.

Ophthalmic Plast Reconstr Surg

*Department of Ophthalmology, †Medical Student, and ‡Department of Pathology, Ain-Shams University, Cairo, Egypt.

Published: February 2017

AI Article Synopsis

Article Abstract

Purpose: To determine the impact of a single injection of various anti-inflammatory, antimitotic, and antiangiogenic agents on the cell count of myofibroblasts in an eviscerated socket.

Methods: One eye from 15 skeletally mature New Zealand white rabbits was eviscerated, and the rabbits were divided into 5 groups. Each group of 3 rabbits received a 0.1 ml subconjunctival injection of a different agent. Group I received bevacizumab 25 mg/ml, group II received triamcinolone 40 mg/ml, group III received 5-fluorouracil 50 mg/ml, group IV received mitomycin-C 0.4 mg/ml, while group V was the control group and received no injections. The animals were euthanized 19 days after evisceration and conjunctival samples were submitted for histopathological examination. Monoclonal α-smooth muscle actin antibody was applied, and the mean of 5 readings of the number of myofibroblasts was recorded in each slide.

Results: The mean count of myofibroblasts was highest for the control group and all groups achieved a statistically significant reduction in myofibroblast count compared with the control group. Sorting the means showed that Group IV (mitomycin-C) achieved the lowest mean value (p = 0.000006) followed by triamcinolone (p = 0.00048), while group I (bevacizumab) achieved the least reduction in myofibroblast count (p = 0.00148).

Conclusion: Until newer antimyofibroblast medications and antibodies are commercially available, a single injection of mitomycin-C or triamcinolone during surgery achieves the highest mean reduction of myofibroblast count.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4937808PMC
http://dx.doi.org/10.1097/IOP.0000000000000510DOI Listing

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