Effect of Aloe vera application on the content and molecular arrangement of glycosaminoglycans during calcaneal tendon healing.

Abstract:

:Although several treatments for tendon lesions have been proposed, successful tendon repair remains a great challenge for orthopedics, especially considering the high incidence of re-rupture of injured tendons. Our aim was to evaluate the pharmacological potential of Aloe vera on the content and arrangement of glycosaminoglycans (GAGs) during tendon healing, which was based on the effectiveness of A. vera on collagen organization previously observed by our group. In rats, a partial calcaneal tendon transection was performed with subsequent topical A. vera application at the injury site. The tendons were treated with A. vera ointment for 7 days and excised on the 7(th) , 14(th) , or 21(st) day post-surgery. Control rats received ointment without A. vera. A higher content of GAGs and a lower amount of dermatan sulfate were detected in the A. vera-treated group on the 14(th) day compared with the control. Also at 14 days post-surgery, a lower dichroic ratio in toluidine blue stained sections was observed in A. vera-treated tendons compared with the control. No differences were observed in the chondroitin-6-sulfate and TGF-β1 levels between the groups, and higher amount of non-collagenous proteins was detected in the A. vera-treated group on the 21(st) day, compared with the control group. No differences were observed in the number of fibroblasts, inflammatory cells and blood vessels between the groups. The application of A. vera during tendon healing modified the arrangement of GAGs and increased the content of GAGs and non-collagenous proteins.

journal_name

Microsc Res Tech

authors

Aro AA,Esquisatto MA,Nishan U,Perez MO,Rodrigues RA,Foglio MA,Carvalho JE,Gomes L,Vidal Bde C,Pimentel ER

doi

10.1002/jemt.22422

subject

Has Abstract

pub_date

2014-12-01 00:00:00

pages

964-73

issue

12

eissn

1059-910X

issn

1097-0029

journal_volume

77

pub_type

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