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1.
Acta ortop. bras ; 16(1): 41-44, 2008. ilus, tab
Article in English, Portuguese | LILACS | ID: lil-482452

ABSTRACT

A enxertia alógena de nervo teve seu interesse renovado após o desenvolvimento de melhores drogas imunossupressoras. Neste trabalho estudou-se a enxertia alógena de nervo utilizando a técnica de planimetria por contagem de pontos.Foram considerados três grupos: Grupo A - ratos Lewis que receberam enxertos de nervo de doadores isogênicos; Grupo B - ratos Lewis que receberam enxertos de nervo de ratos doadores Brown-Norway e foram tratados com solução salina; Grupo C - ratos Lewis que receberam enxertos de nervo de ratos doadores Brown-Norway e foram tratados com ciclosporina. A regeneração neural foi avaliada por análise histológica e estudos histomorfométricos depois de 6 e 12 semanas. Com 6 semanas, a densidade de fibras neurais e a porcentagem de tecido neural no grupo de enxertos alógenos com imunossupressão (grupo C) era significativamente mais alta do que no grupo B. Os grupos de enxertos alógenos (grupo B e C) mostraram densidade menor de fibras de nervo e porcentagem de tecido neural que no grupo de enxerto autógeno (grupo A) tanto com 6 quanto com 12 semanas.O método de planimetria por contagem de pontos produziu resultados precisos e reprodutíveis.


PURPOSE: This paper was aimed to study nerve regeneration after allografting using conventional point counting technique. INTRODUCTION:The interest towards nerve allografting has been growing since the recent development of better immunosuppressant drugs. METHODS: Three groups were studied: Group A - Lewis rats receiving nerve grafts from isogenic donors; Group B - Lewis rats receiving nerve grafts from Brown-Norway donor rats and treated with saline solution; Group C - Lewis rats receiving nerve grafts from Brown-Norway donor rats and treated with cyclosporine. Nerve regeneration was evaluated by histological analysis and by histomorphometric studies after 6 and 12 weeks. RESULTS: At 6 weeks, nerve fiber density and the percentage of neural tissue in the immunosupressed allograft group (C) were significantly higher than in group B. Allograft groups (B and C) showed significantly lower nerve fibers density and percentage of neural tissue when compared to the autograft group A at 6 or 12 weeks. CONCLUSIONS: We conclude that the point counting method was simpler to use than the computerized model, and yielded accurate and reproducible results.


Subject(s)
Animals , Rats , Animals, Laboratory/immunology , Immune Tolerance , Nerve Regeneration , Sciatic Nerve/physiology , Cyclosporine/therapeutic use , Histological Techniques , Immunosuppression Therapy , Transplantation, Homologous
2.
Rev. Soc. Bras. Cir. Plást., (1986) ; 18(3): 47-54, Sept.-Dec. 2003. ilus
Article in English, Portuguese | LILACS | ID: lil-357663

ABSTRACT

Scalp avulsion is a devastating physical, functional, and psychological injury to patients. The emergence of surgery and the first replantation by Miller, in 1976, was a major breakthrough in the management of scalp avulsion that became the treatment of choice, whenever possible.This study aims to present the 7 last years of experience of the Discipline of Plastic Surgery of the Medical School of the University of São Paulo and to compare it with the literature, so as to standardize the care for the cases herein addressed and thus achieve the best possible results.The cases presented consist of 6 female patients with scalp avulsion, their ages ranging between 9 and 29 years. Warm ischemia time ranged between 9 and 25 hours (average 14 hours). Four cases were totally successful, one case was partially successful (40 (per cent)), and the remaining cases lost the replantation.The current techniques and the structure available in specialized facilities enable the appropriate management of avulsed scalps through microsurgical replantation, thus leading to satisfactory results that are superior to the previously available options.


Subject(s)
Female , Adolescent , Adult , Brain Injuries , Replantation , Scalp , Microsurgery
3.
Rev. med. (Säo Paulo) ; 78(7): 536-54, nov.-dez. 1999.
Article in Portuguese | LILACS | ID: lil-277343

ABSTRACT

O silicone e utilizado em cirurgia plastica reconstrutiva desde a decada de 60, sendo que os implantes mamarios de silicone evoluiram a posicao de destaque pelo seu uso frequente em cirurgias esteticas nos ultimos 25 anos, chegando ao conhecimento e aceitacao do publico em geral. Nos ultimos 4 anos, grande controversia no uso destes implantes surgiu, desde que o Food and Drug Administration (FDA) dos Estados Unidos da America desaconselhou a utilizacao dos mesmos em cirurgias que nao tivessem o intuito de reconstrucao mamaria pos-mastectomia, devido a complicacoes locais, a um suposto atraso na deteccao de cancer de mama e principalmente ao desenvolvimento de doencas autoimunes. o presente estudo tem por objetivo...


Subject(s)
Humans , Female , Autoimmune Diseases/etiology , Breast Implants/adverse effects , Silicone Gels/adverse effects , Autoimmune Diseases/immunology , Mammaplasty , Immunity, Cellular , Antibody Formation/immunology
4.
Rev. med. (Säo Paulo) ; 75(2): 100-7, abr.-jun. 1996. tab
Article in Portuguese | LILACS | ID: lil-177691

ABSTRACT

Este estudo relata os resultados da aplicacao da Escala de Sonolencia de Epworth (ESE) em 480 alunos da FMUSP, o resultado da correlacao do valor obtido da ESE com o numero declarado de horas de sono por noite e a comparacao com um estudo semelhante com alunos de medicina da Australia. A ESE e um questionario auto-aplicado de 8 itens usado para se avaliar sonolencia subjetiva em adultos. Os valores da ESE variam de 0 ate o maximo de 24 pontos. Os questionarios foram aplicados no final de 1994. Total de respostas = 480 sendo que 293 masculino, 185 feminino. Idade media = 20,55 + ou - 2,15 (DP). Etnia branca = 3346; amarela = 96; negra = 3; outros = 10; nao declarados = 25...


Subject(s)
Humans , Male , Female , Sleep Stages/physiology , Students, Medical , Circadian Rhythm , Sleep Wake Disorders/etiology , Students, Medical/classification , Disorders of Excessive Somnolence/etiology , Surveys and Questionnaires/classification , Kleine-Levin Syndrome
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