RESUMO
Dendritic cells (DCs) are bone marrow-derived, professional antigen-presenting cells, with inherent tolerogenic function. The ability of immature or maturation-resistant DCs to regulate alloantigen-specific T-cell responses and to promote tolerance induction has been well demonstrated in organ and bone marrow transplantation. Recent data suggest that DCs can also promote long-term survival of composite tissue allografts in the absence of continued immunosuppressive drug therapy.
Assuntos
Células Dendríticas/imunologia , Sobrevivência de Enxerto/fisiologia , Transplante de Tecidos/patologia , Transplante Homólogo/imunologia , Células da Medula Óssea/imunologia , Células Dendríticas/transplante , Humanos , Tolerância Imunológica , Terapia de Imunossupressão/métodos , Imunossupressores/uso terapêutico , Baço/imunologia , Linfócitos T/imunologia , Transplante Homólogo/patologiaRESUMO
A surgical treatment for pronounced nasolabial fold correction through aponeurotic galea, fatty dermic, and dermic autogenous grafts by intraoral access is presented. The results obtained with 20 patients, with up to five years of postoperative observation, are discussed.
Assuntos
Ritidoplastia/métodos , HumanosRESUMO
Excessive skin in the upper eyelid may be totally or partially a result of ptosis of the eyebrows. In this case, blepharoplasty corrects this deformity insufficiently and may even increase the sagging of the eyebrows, giving the face a sad expression. A technique for lifting the eyebrows during a blepharoplasty is presented. It consists of affixing the dermis and galea to the aponeurosis of the temporal muscle through a subgalean tunnel in the scalp. We believe that this is an anatomically based procedure, is easy to execute, has few complications, yields lasting results with hidden scars, and is of low cost. Among the 100 cases in which this technique was used, the majority showed highly satisfactory results.
Assuntos
Sobrancelhas/cirurgia , Pálpebras/cirurgia , Couro Cabeludo/cirurgia , Cirurgia Plástica/métodos , Feminino , HumanosAssuntos
Face/cirurgia , Cirurgia Plástica , Orelha Externa/cirurgia , Humanos , Retalhos CirúrgicosRESUMO
Os autores descrevem uma tecnica de ritidoplastia baseada na disseccao, em conjunto, de lamina conjuntiva da regiao pre-auricular e do musculo platisma. Essa unidade e seccionada obliquamente ao nivel do lobulo auricular, formando dois retalhos, sendo o anterior tracionado superiormente e o posterior fixado na regiao mastoidea.Salientam a seguranca do metodo, por evitar disseccao das regioes anatomicas ocupadas pelo nervo facial. Finalmente referem como vantagens do metodo a pequena disseccao cutanea, menor tempo cirurgico e cura mais rapida. Em 60 casos nao tiveram nenhuma lesao do nervo facial ou outras complicacoes mais serias