title: Comparative study of the topical application of Aloe vera gel, therapeutic ultrasound and phonophoresis on the tissue repair in collagenase-induced rat tendinitis.
abstract: The aim of our study was to compare topical use of Aloe vera gel, pulsed mode ultrasound (US) and Aloe vera phonophoresis on rat paw with collagenase-induced tendinitis. Edema size, tensile tendon strength, tendon elasticity, number of inflammatory cells and tissue histology were studied at 7 and 14 days after tendinitis induction. Pulse mode US parameters were: 1 MHz frequency, 100 Hz repetition rate, 10% duty cycle, and 0.5 W/cm(2) intensity, applied for 2 min each session. A 0.5 mL of Aloe vera gel at 2% concentration was applied for 2 min per session, topically and by phonophoresis. Topical application of Aloe vera gel did not show any statistically significant improvement in the inflammatory process, whereas phonophoresis enhanced the gel action reducing edema and number of inflammatory cells, promoting the rearrangement of collagen fibers and promoting also the recovery of the tensile strength and elasticity of the inflamed tendon to recover their normal pre-injury status. Results seem to indicate that Aloe vera phonophoresis is a promising technique for tendinitis treatment, without the adverse effect provoked by systemic anti-inflammatory drugs.
authors.affiliation: Faculdade Integral Diferencial, FACID, Teresina, Piauí, Brazil.
authors.forename: Antonio Luiz Martins
authors.initials: AL
authors.lastname: Maia Filho
authors.forename: Antonio Balbin
authors.initials: AB
authors.lastname: Villaverde
authors.forename: Egberto
authors.initials: E
authors.lastname: Munin
authors.forename: Flávio
authors.initials: F
authors.lastname: Aimbire
authors.forename: Regiane
authors.initials: R
authors.lastname: Albertini
mesh_terms: D000287:Administration, Topical; D000504:Aloe; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000627:therapeutic use; D017364:Collagenases; D004195:Disease Models, Animal; D004487:Edema / Q000209:etiology / Q000628:therapy; D004548:Elasticity / Q000187:drug effects; D005782:Gels; D007249:Inflammation / Q000209:etiology / Q000628:therapy; D008297:Male; D015612:Phonophoresis / Q000379:methods*; D008517:Phytotherapy / Q000379:methods*; D028321:Plant Preparations / Q000627:therapeutic use*; D010946:Plants, Medicinal; D051381:Rats; D017208:Rats, Wistar; D052256:Tendinopathy / Q000150:complications / Q000628:therapy*; D013718:Tensile Strength / Q000187:drug effects; D016896:Treatment Outcome; D014464:Ultrasonic Therapy / Q000379:methods*
chemical_list: D000893:Anti-Inflammatory Agents; D005782:Gels; D028321:Plant Preparations; D017364:Collagenases