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1.
An Bras Dermatol ; 92(3): 312-318, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29186240

RESUMEN

BACKGROUND: Vitiligo is a chronic disease characterized by the appearance of achromic macules caused by melanocyte destruction. Surgical treatments with melanocyte transplantation can be used for stable vitiligo cases. OBJECTIVES: To evaluate treatment response to the autologous transplantation of noncultured epidermal cell suspension in patients with stable vitiligo. METHODS: Case series study in patients with stable vitiligo submitted to noncultured epidermal cell suspension transplantation and evaluated at least once, between 3 and 6 months after the procedure, to observe repigmentation and possible adverse effects. The maximum follow-up period for some patients was 24 months. RESULTS: Of the 20 patients who underwent 24 procedures, 25% showed an excellent rate of repigmentation, 50% good repigmentation, 15% regular, and 10% poor response. The best results were observed in face and neck lesions, while the worst in extremity lesions (88% and 33% of satisfactory responses, respectively). Patients with segmental vitiligo had a better response (84%) compared to non-segmental ones (63%). As side effects were observed hyperpigmentation of the treated area and the appearance of Koebner phenomenon in the donor area. STUDY LIMITATIONS: Some limitations of the study included the small number of patients, a subjective evaluation, and the lack of long-term follow-up on the results. CONCLUSION: Noncultured epidermal cell suspension transplantation is efficient and well tolerated for stable vitiligo treatment, especially for segmental vitiligo on the face and neck.


Asunto(s)
Queratinocitos/trasplante , Melanocitos/trasplante , Vitíligo/cirugía , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trasplante Autólogo , Resultado del Tratamiento , Adulto Joven
2.
An. bras. dermatol ; 92(3): 312-318, May-June 2017. tab, graf
Artículo en Inglés | LILACS | ID: biblio-886974

RESUMEN

Abstract Background: Vitiligo is a chronic disease characterized by the appearance of achromic macules caused by melanocyte destruction. Surgical treatments with melanocyte transplantation can be used for stable vitiligo cases. Objectives: To evaluate treatment response to the autologous transplantation of noncultured epidermal cell suspension in patients with stable vitiligo. Methods: Case series study in patients with stable vitiligo submitted to noncultured epidermal cell suspension transplantation and evaluated at least once, between 3 and 6 months after the procedure, to observe repigmentation and possible adverse effects. The maximum follow-up period for some patients was 24 months. Results: Of the 20 patients who underwent 24 procedures, 25% showed an excellent rate of repigmentation, 50% good repigmentation, 15% regular, and 10% poor response. The best results were observed in face and neck lesions, while the worst in extremity lesions (88% and 33% of satisfactory responses, respectively). Patients with segmental vitiligo had a better response (84%) compared to non-segmental ones (63%). As side effects were observed hyperpigmentation of the treated area and the appearance of Koebner phenomenon in the donor area. Study limitations: Some limitations of the study included the small number of patients, a subjective evaluation, and the lack of long-term follow-up on the results. CONCLUSION: Noncultured epidermal cell suspension transplantation is efficient and well tolerated for stable vitiligo treatment, especially for segmental vitiligo on the face and neck.


Asunto(s)
Humanos , Masculino , Femenino , Adolescente , Adulto , Persona de Mediana Edad , Vitíligo/cirugía , Queratinocitos/trasplante , Melanocitos/trasplante , Trasplante Autólogo , Resultado del Tratamiento
3.
Dermatol Res Pract ; 2017: 4146391, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28373880

RESUMEN

Skin aging is a gradual process that leads to wrinkle formation, laxity, and overall changes in skin appearance. In recent years, the demands to noninvasive treatments for facial rejuvenation increased, along with a variety of technologies and devices, such as radiofrequency. The present study aimed to evaluate the clinical effects of a multipolar radiofrequency and pulsed electromagnetic field treatment for face and neck rejuvenation. Eleven patients with mild to moderate grades of photoaging underwent eight radiofrequency and pulsed electromagnetic field treatment sessions, once a week. Clinical photographs were taken before and a week after the end of the treatment, and improvement of facial skin parameters was evaluated by two different investigators. Significant improvement in skin laxity was observed in all eleven patients (100%). Improvement in facial contour was noted in 73% and 100% of patients when analyzed by investigators A and B, respectively. The score for overall improvement in skin condition was 3 ± 0.78 for investigator A and 3.6 ± 0.67 for investigator B. All patients were satisfied with the procedure and noted significant improvement in the skin. The combined multipolar radiofrequency and pulsed electromagnetic field device is effective and safe for treatment of aged skin in Brazilian patients.

4.
Autoimmune Dis ; 2015: 196537, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26457199

RESUMEN

Vitiligo, a depigmentary disorder, caused by the loss of melanocytes, affects approximately 1% of the world population, irrespective of skin type, with a serious psychological impact on the patient quality of life. So far, the origin of vitiligo has not been traced and the pathogenesis is complex, involving the interplay of a multitude of variables. Although there is no treatment that ensures the complete cure of the disorder, there are some pharmacological, phototherapy, and surgical therapies available. A series of variables can affect treatment outcome, such as individual characteristics, emotional issues, type of vitiligo, stability of the lesions, and immunological status. The present literature review identified the main immunological parameters associated with treatments for vitiligo. Cytotoxic CD8+ T lymphocytes are the main cell type involved in treatment success, as fewer cells in skin lesions are associated with better results. Other parameters such as cytokines and regulatory T cells may also be involved. Further clinical scientific studies are needed to elucidate the complex mechanisms underlying vitiligo and its treatments, in order to expand the range of therapeutic approaches for each individual case.

5.
An Bras Dermatol ; 88(5): 811-3, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24173191

RESUMEN

There are many alternatives to treat vitiligo, including surgical procedures, which are recommended for patients resistant to other therapies. The melanocyte/keratinocyte transplantation consists in the separation of epidermal cells obtained from a donor site and spreading these cells on the depigmented and dermabraded recipient area. Two patients were submitted to transplantation, showing more than 70% repigmentation in the treated areas after four months, both with excellent degree of satisfaction. The method requires some laboratory skills, but represents a simple and safe procedure.


Asunto(s)
Dermatosis Facial/cirugía , Queratinocitos/trasplante , Melanocitos/trasplante , Trasplante de Piel/métodos , Vitíligo/cirugía , Adulto , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Resultado del Tratamiento
6.
An. bras. dermatol ; 88(5): 811-813, out. 2013. graf
Artículo en Inglés | LILACS | ID: lil-689718

RESUMEN

There are many alternatives to treat vitiligo, including surgical procedures, which are recommended for patients resistant to other therapies. The melanocyte/keratinocyte transplantation consists in the separation of epidermal cells obtained from a donor site and spreading these cells on the depigmented and dermabraded recipient area. Two patients were submitted to transplantation, showing more than 70% repigmentation in the treated areas after four months, both with excellent degree of satisfaction. The method requires some laboratory skills, but represents a simple and safe procedure.


Existem várias alternativas para o tratamento do vitiligo, incluindo procedimentos cirúrgicos, que são indicados para pacientes refratários aos outros tipos de tratamento. O transplante de suspensão celular de melanócitos/queratinócitos consiste na separação de células da epiderme obtidas de área doadora, e aplicação destas células na área receptora despigmentada, após dermoabrasão. Dois pacientes com vitiligo estável foram submetidos ao transplante de suspensão de melanócitos/queratinócitos, apresentando repigmentação acima de 70% nas áreas tratadas após quatro meses, ambos com excelente grau de satisfação. O método requer alguma habilidade laboratorial, mas representa um procedimento simples e seguro.


Asunto(s)
Adulto , Humanos , Masculino , Persona de Mediana Edad , Dermatosis Facial/cirugía , Queratinocitos/trasplante , Melanocitos/trasplante , Trasplante de Piel/métodos , Vitíligo/cirugía , Satisfacción del Paciente , Resultado del Tratamiento
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