Comparação de diferentes doses de colagenase em modelo de indução de tendinite para eqüinos: estudo clínico e ultra-sonográfico
Neste estudo, lesões tendíneas foram induzidas experimentalmente em eqüinos por meio da administração de diferentes doses de colagenase. Foram usados 12 eqüinos adultos, clinicamente sadios e distribuídos aleatoriamente em dois grupos que receberam diferentes doses de colagenase. O grupo 1 (G1) rece...
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Published in | Ciência rural Vol. 39; no. 4; pp. 1124 - 1130 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
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20.03.2009
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Abstract | Neste estudo, lesões tendíneas foram induzidas experimentalmente em eqüinos por meio da administração de diferentes doses de colagenase. Foram usados 12 eqüinos adultos, clinicamente sadios e distribuídos aleatoriamente em dois grupos que receberam diferentes doses de colagenase. O grupo 1 (G1) recebeu 1,25mg e o grupo 2 (G2) recebeu 2,5mg de colagenase. Com a agulha posicionada no centro dos tendões flexores digitais superficiais dos membros torácicos, as diferentes doses de colagenase foram aplicadas conforme o grupo experimental. O acompanhamento das lesões tendíneas baseou-se em exames físicos e ultra-sonográficos, realizados a cada sete dias até o período de 28 dias pós-indução. Nas imagens ultra-sonográficas, foram avaliados os parâmetros ecogenicidade, percentual de área lesada, grau de redução e severidade das lesões do tendão flexor digital superficial. O parâmetro mais fiel em resposta às diferentes doses de colagenase administradas foi o percentual de área lesada no interior do tendão. O G2 apresentou uma melhor resposta ultra-sonográfica da tendinite do flexor digital superficial para a realização de estudos experimentais.
In this study, tendinous injuries were induced experimentally in horses, through the administration of different doses of collagenase. Twelve horses, clinically healthy, were distributed into two groups that received different doses of collagenase. Group 1 (G1) received 1.25mg and Group 2 (G2) received 2.5mg of collagenase. With the needle positioned at the center of the superficial digital flexor tendon in the equine forelimbs, different doses of collagenase were applied in agreement the experimental group. The monitoring of colagenase-induced tendonitis was based on physical and ultrasonographic exams, carried out every seven days until the period of 28 days post-induction. In the images of ultrasound were evaluated the echogenicity, the percentage of injured area, degree of reduction and severity of injuries of colagenase-induced tendonitis. The most accurate parameter in response to different doses of collagenase administered was the percentage of area injured in the interior of the tendon. The G2 presented one better ultrasonographic reply of the tendonitis of the superficial digital flexor for the accomplishment of experimental studies. |
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AbstractList | Neste estudo, lesões tendíneas foram induzidas experimentalmente em eqüinos por meio da administração de diferentes doses de colagenase. Foram usados 12 eqüinos adultos, clinicamente sadios e distribuídos aleatoriamente em dois grupos que receberam diferentes doses de colagenase. O grupo 1 (G1) recebeu 1,25mg e o grupo 2 (G2) recebeu 2,5mg de colagenase. Com a agulha posicionada no centro dos tendões flexores digitais superficiais dos membros torácicos, as diferentes doses de colagenase foram aplicadas conforme o grupo experimental. O acompanhamento das lesões tendíneas baseou-se em exames físicos e ultra-sonográficos, realizados a cada sete dias até o período de 28 dias pós-indução. Nas imagens ultra-sonográficas, foram avaliados os parâmetros ecogenicidade, percentual de área lesada, grau de redução e severidade das lesões do tendão flexor digital superficial. O parâmetro mais fiel em resposta às diferentes doses de colagenase administradas foi o percentual de área lesada no interior do tendão. O G2 apresentou uma melhor resposta ultra-sonográfica da tendinite do flexor digital superficial para a realização de estudos experimentais.
In this study, tendinous injuries were induced experimentally in horses, through the administration of different doses of collagenase. Twelve horses, clinically healthy, were distributed into two groups that received different doses of collagenase. Group 1 (G1) received 1.25mg and Group 2 (G2) received 2.5mg of collagenase. With the needle positioned at the center of the superficial digital flexor tendon in the equine forelimbs, different doses of collagenase were applied in agreement the experimental group. The monitoring of colagenase-induced tendonitis was based on physical and ultrasonographic exams, carried out every seven days until the period of 28 days post-induction. In the images of ultrasound were evaluated the echogenicity, the percentage of injured area, degree of reduction and severity of injuries of colagenase-induced tendonitis. The most accurate parameter in response to different doses of collagenase administered was the percentage of area injured in the interior of the tendon. The G2 presented one better ultrasonographic reply of the tendonitis of the superficial digital flexor for the accomplishment of experimental studies. |
Author | Alves, Ana Liz Garcia Hussni, Carlos Alberto Yamada, Ana Lucia Miluzzi Carneiro, Rodrigo Nicoletti, José Luiz de Mello Watanabe, Marcos Jun Thomassian, Armen |
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Cites_doi | 10.2460/ajvr.1992.53.12.2371 10.1111/j.1740-8261.1986.tb00020.x 10.1111/j.1740-8261.1989.tb00773.x 10.1016/j.tvjl.2004.03.021 10.1590/S0102-09352004000600002 10.1111/j.2042-3306.1993.tb02896.x 10.1016/S0749-0739(17)30560-6 10.1016/S0737-0806(01)70076-7 10.1016/S0749-0739(17)30359-0 10.1016/j.jbiomech.2004.09.026 |
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H. – start-page: 285 year: 1997 ident: ref11 contributor: fullname: GENOVESE R. – volume: 5 start-page: 111 year: 2000 ident: ref16 article-title: Effects of laser therapy on experimental tendonitis in horses: ultrasonographic and histologic study publication-title: Archives of Veterinary Science contributor: fullname: MACHADO M.V.M. – start-page: 1 year: 1996 ident: ref22 contributor: fullname: WILSON J.H. – volume: 170 start-page: 184 issn: 1090-0233 year: 2005 ident: ref8 article-title: Mechanical and functional properties of the equine superficial digital flexor tendon publication-title: Veterinary Journal doi: 10.1016/j.tvjl.2004.03.021 contributor: fullname: DOWLING B.A. – volume: 56 start-page: 701 issn: 0102-0935 issue: 6 year: 2004 ident: ref18 article-title: Intralesional polysulphated glycosaminoglycan as treatment of equine collagenase induced tendonitis: clinical, ultrasonographic and histopathologic evaluation publication-title: Arquivo Brasileiro de Medicina Veterinária e Zootecnia doi: 10.1590/S0102-09352004000600002 contributor: fullname: MARXEN S. – volume: 40 start-page: 117 issn: 1413-9596 issue: 2 year: 2003 ident: ref9 article-title: Morphological study of equine flexor tendons publication-title: Brazilian Journal of Veterinary Research and Animal Science contributor: fullname: FERRARO G.C. – volume: 25 start-page: 23 issn: 0425-1644 issue: 1 year: 1993 ident: ref17 article-title: Ultrasonographic and histopathological findings in equine superficial digital flexor tendon injury publication-title: Equine Veterinary Journal doi: 10.1111/j.2042-3306.1993.tb02896.x contributor: fullname: MARR C.M. – volume: 6 start-page: 129 issue: 1 year: 1990 ident: ref12 article-title: Clinical experience with quantitative analysis of superficial digital flexor tendon injuries in thoroughbred and standarbred racehorses publication-title: Veterinary Clinics of North America - Equine Practice doi: 10.1016/S0749-0739(17)30560-6 contributor: fullname: GENOVESE R. – volume: 7 start-page: 45 issue: 2 year: 2002 ident: ref5 article-title: Tendon splitting surgical treatment on experimental equine acute tendonitis publication-title: Archives of Veterinary Science contributor: fullname: ALVES A.L.G. – year: 2005 ident: ref6 contributor: fullname: BARREIRA A.P.B. – volume: 21 start-page: 335 issn: 0737-0806 issue: 7 year: 2001 ident: ref3 article-title: Effects of beta-aminopropionitrile fumarate and exercise on equine tendon healing: gross and histological aspects publication-title: Journal of Equine Veterinary Science doi: 10.1016/S0737-0806(01)70076-7 contributor: fullname: ALVES A.L.G. – volume: 10 start-page: 322 issue: 2 year: 1994 ident: ref14 article-title: The pathophysiology and repair of tendon and ligament injury publication-title: Veterinary Clinics of North America - Equine Practice doi: 10.1016/S0749-0739(17)30359-0 contributor: fullname: GOODSHIP A.E. – year: 1998 ident: ref19 contributor: fullname: REEF V. B. – year: 2002 ident: ref21 contributor: fullname: STASHAK T. S. – volume: 38 start-page: 2212 issn: 0021-9290 issue: 11 year: 2005 ident: ref7 article-title: Correlations between mean echogenicity and material properties of normal and disease equine superficial digital flexor tendons: an in vitro segmental approach publication-title: Journal of Biomechanics doi: 10.1016/j.jbiomech.2004.09.026 contributor: fullname: CREVIER-DENOIX N. |
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