Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 7 de 7
Filter
Add more filters











Publication year range
1.
Arq Bras Oftalmol ; 71(4): 568-75, 2008.
Article in English | MEDLINE | ID: mdl-18797670

ABSTRACT

PURPOSE: To evaluate the effectiveness of mitomycin C (MMC) in preventing recurrence of pterygium following conjunctival autograft transplantation (CAT). Ki-67 antigen to evaluate epithelial cell proliferation and fibroblast nuclear kariometry were used to assist treatment evaluation. METHODS: Twenty-nine patients with recurrent pterygium were divided into three groups: Group (G) 1--CAT and placebo eyedrops (PED); G2--CAT, 0.015% MMC subconjunctivally, and PED; G3--CAT and 0.02% MMC eyedrops. Immunohistochemistry for the Ki-67 antigen and fibroblast nuclei kariometry were performed on the excised tissue, divided into nasal and temporal sides. Kariometry was evaluated in terms of volume (Vl) and area (Ar) using at least 50 cells/patient. RESULTS: The percentage of positive epithelial cells for the Ki-67 antigen on the nasal and temporal side after treatment of the three groups were: nasal (5.39% G1, 4.49% G2, and 3.88% G3); temporal (3.30% G1, 4.46% G2, 4.14% G3), did not show significant differences. Fibroblast nucleus kariometry was: nasal Vl (792.1 mu3 G1, 605.1 mu3 G2, and 549.9 mu3 G3) and Ar (100.58 mu2 G1, 83.13 mu2 G2, and 78.41 mu2 G3). The three groups showed significant differences: p=0.039 and p=0.035, for respectively Vl and Ar, on the nasal side. After a six month of treatment, the three groups presented the following recurrence rates: G1, 22.22%, G2, 18.18% and G3, 33.33%, respectively. CONCLUSION: MMC did not reduce the number of positive epithelial cells for the Ki-67 antigen in recurrent pterygium, but decreased fibroblast nucleus volume and area on the nasal side of the pterygia. The number of positive epithelial cells for the Ki-67 antigen seemed not to be related to pterygium recurrence observed over a six-month post-surgery period. The role of epithelial cell proliferation in pterygium recurrence should be evaluated by further studies.


Subject(s)
Antimetabolites, Antineoplastic/therapeutic use , Conjunctiva/transplantation , Mitomycin/therapeutic use , Pterygium/prevention & control , Adult , Cell Proliferation/drug effects , Conjunctiva/cytology , Corneal Transplantation , Epithelial Cells/cytology , Epithelial Cells/drug effects , Fibroblast Growth Factors/analysis , Humans , Karyometry , Ki-67 Antigen/analysis , Middle Aged , Ophthalmic Solutions/therapeutic use , Proliferating Cell Nuclear Antigen/analysis , Pterygium/drug therapy , Pterygium/metabolism , Secondary Prevention , Statistics, Nonparametric , Treatment Outcome
2.
Arq. bras. oftalmol ; 71(4): 568-575, jul.-ago. 2008. ilus, graf, tab
Article in English | LILACS | ID: lil-491891

ABSTRACT

PURPOSE: To evaluate the effectiveness of mitomycin C (MMC) in preventing recurrence of pterygium following conjunctival autograft transplantation (CAT). Ki-67 antigen to evaluate epithelial cell proliferation and fibroblast nuclear kariometry were used to assist treatment evaluation. METHODS: Twenty-nine patients with recurrent pterygium were divided into three groups: Group (G) 1 - CAT and placebo eyedrops (PED); G2 - CAT, 0.015 percent MMC subconjunctivally, and PED; G3 - CAT and 0.02 percent MMC eyedrops. Immunohistochemistry for the Ki-67 antigen and fibroblast nuclei kariometry were performed on the excised tissue, divided into nasal and temporal sides. Kariometry was evaluated in terms of volume (Vl) and area (Ar) using at least 50 cells/patient. RESULTS: The percentage of positive epithelial cells for the Ki-67 antigen on the nasal and temporal side after treatment of the three groups were: nasal (5.39 percent G1, 4.49 percent G2, and 3.88 percent G3); temporal (3.30 percent G1, 4.46 percent G2, 4.14 percent G3), did not show significant differences. Fibroblast nucleus kariometry was: nasal Vl (792.1 µ3 G1, 605.1 µ3 G2, and 549.9 µ3 G3) and Ar (100.58 µ2 G1, 83.13 µ2 G2, and 78.41 µ2 G3). The three groups showed significant differences: p=0.039 and p=0.035, for respectively Vl and Ar, on the nasal side. After a six month of treatment, the three groups presented the following recurrence rates: G1, 22.22 percent, G2, 18.18 percent and G3, 33.33 percent, respectively. CONCLUSION: MMC did not reduce the number of positive epithelial cells for the Ki-67 antigen in recurrent pterygium, but decreased fibroblast nucleus volume and area on the nasal side of the pterygia. The number of positive epithelial cells for the Ki-67 antigen seemed not to be related to pterygium recurrence observed over a six-month post-surgery period. The role of epithelial cell proliferation in pterygium recurrence should be evaluated by further studies.


OBJETIVO: Avaliar a eficácia da mitomicina C (MMC) na prevenção da recorrência quando previamente utilizada no transplante autólogo de conjuntiva (TAC). A avaliação da proliferação celular epitelial pelo antígeno Ki-67 e a cariometria do núcleo dos fibroblastos foram usados como auxiliares na avaliação do tratamento. MÉTODOS: Vinte e nove pacientes com pterígio recidivado foram divididos em três grupos: Grupo (G) 1-TAC e colírio placebo (PLA); G2-TAC, MMC 0,015 por cento subconjuntival e PLA; G3-TAC e colírio de MMC 0,02 por cento. A imuno-histoquímica foi realizada no tecido excisado para o antígeno Ki-67, como a cariometria dos núcleos dos fibroblastos (divididos em lado nasal e temporal). A cariometria dos núcleos dos fibroblastos foi avaliada de acordo com os seguintes parâmetros: volume (Vl) e área (Ar) em pelos menos 50 células por paciente. RESULTADOS: A porcentagem das células epiteliais positivas para o antígeno Ki-67 no lado nasal e temporal após o tratamento dos três grupos estudados foi: nasal (3,30 por cento G1, 4,49 por cento G2 e 3,38 por cento G3) e temporal (3,30 por cento G1, 4,46 por cento G2 e 4,14 por cento G3) não mostrando diferença significativa. A cariometria do núcleo dos fibroblastos foi: Vl nasal (792,1 µ3 G1, 605,1 µ3 G2, e 549,9 µ3 G3) e a Ar (100,58 µ2 G1, 83,13 µ2 G2, e 78,41 µ2 G3). Os três grupos mostraram uma diferença significativa p=0,039 e p=0,035, respectivamente do Vl e da Ar no lado nasal. Após seis meses de tratamento, os três grupos apresentaram a seguinte taxa de recidiva: 22,22 por cento G1, 18,18 por cento, G2 e 33,33 por cento G3 respectivamente. CONCLUSÃO: O uso da MMC não interferiu nas células epiteliais positivas para o antígeno Ki-67 no pterígio recidivado, mas acarretou diminuição do volume e área dos núcleos dos fibroblastos no lado nasal do pterígio. As células epiteliais positivas para o antígeno Ki-67 parecem não ter relação com a recidiva do pterígio após seis meses...


Subject(s)
Adult , Humans , Middle Aged , Antimetabolites, Antineoplastic/therapeutic use , Conjunctiva/transplantation , Mitomycin/therapeutic use , Pterygium/prevention & control , Corneal Transplantation , Cell Proliferation/drug effects , Conjunctiva/cytology , Epithelial Cells/cytology , Epithelial Cells/drug effects , Fibroblast Growth Factors/analysis , Karyometry , /analysis , Ophthalmic Solutions/therapeutic use , Proliferating Cell Nuclear Antigen/analysis , Pterygium/drug therapy , Pterygium/metabolism , Recurrence/prevention & control , Statistics, Nonparametric , Treatment Outcome
3.
Arq Bras Oftalmol ; 68(4): 554-6, 2005.
Article in Portuguese | MEDLINE | ID: mdl-16322846

ABSTRACT

To report tamoxifen ocular toxicity. The best visual acuity was measured in both eyes with Snellen chart, slit-lamp examination of anterior segment, refraction, dilated fundus examination, fluorescein angiography and retinography in a 63-year-old patient, female, white, using tamoxifen 20 mg/day for 4 years, with 20/70 and 20/40 corrected visual acuity. The anterior segment examination showed corneal linear subepithelial opacity inferior to the visual axis and nuclear and posterior cortical cataract (1+/4) in both eyes. Fundus examination showed alteration of macular color in both eyes. Fluorescein angiography presented hyperfluorescence in the macular area at an early phase (window defect). Report of keratopathy and maculopathy caused by tamoxifen.


Subject(s)
Antineoplastic Agents, Hormonal/adverse effects , Estrogen Antagonists/adverse effects , Macular Degeneration/chemically induced , Tamoxifen/adverse effects , Visual Acuity/drug effects , Breast Neoplasms/drug therapy , Cataract/chemically induced , Female , Humans , Middle Aged
4.
Arq Bras Oftalmol ; 68(3): 407-9, 2005.
Article in Portuguese | MEDLINE | ID: mdl-16059580

ABSTRACT

To report a case of ocular toxicity due to chloroquine. The best visual acuity was measured in both eyes with the Snellen chart. Slit-lamp examination of anterior segment, refraction, dilated fundus examination, fluorescein angiography and retinography was done in a 53-year-old patient, female, with rheumatoid arthritis. She had used chloroquine during 6 years and had stopped for 1 year when she came to our service. She had best corrected visual acuity of 20/200 and 20/40. Slit-lamp examination showed intraocular lens in right eye and nuclear cataract (1+/4) in the other, and bilateral corneal subepithelial opacity inferior to the visual axis. Fundus examination showed macular area with retinal pigment epithelium atrophy. Fluorescein angiography showed a bull's eye maculopathy. Report of a typical keratopathy and maculopathy caused by chloroquine.


Subject(s)
Antirheumatic Agents/adverse effects , Chloroquine/adverse effects , Keratitis/chemically induced , Retinal Diseases/chemically induced , Arthritis, Rheumatoid/drug therapy , Female , Humans , Middle Aged , Visual Acuity/drug effects
5.
Arq. bras. oftalmol ; 68(4): 554-556, jul.-ago. 2005. ilus
Article in Portuguese | LILACS | ID: lil-417801

ABSTRACT

O objetivo desse trabalho é relatar um caso de toxicidade ocular pelo tamoxifeno. Para isso, aferiu-se a melhor acuidade visual corrigida de ambos os olhos em tabela de Snellen. Foram realizados biomicroscopia do segmento anterior, refração, oftalmoscopia, angiofluoresceinografia e retinografia numa paciente de 63 anos, sexo feminino, cor branca, em uso de tamoxifeno 20 mg/dia há 4 anos, com acuidade visual corrigida de 20/70 e 20/40. A biomicroscopia do segmento anterior apresentava ceratopatia verticilata e catarata nuclear e cortical posterior de 1+/4 em ambos os olhos. A oftalmoscopia, foi verificado alteração do brilho macular de ambos os olhos. E a angiofluoresceinografia mostrou hiperfluorescência na área macular em fase precoce (defeito em janela). Relata-se um caso de ceratopatia e maculopatia causadas pelo tamoxifeno.


Subject(s)
Humans , Female , Middle Aged , Visual Acuity/drug effects , Estrogen Antagonists/adverse effects , Antineoplastic Agents, Hormonal/adverse effects , Macular Degeneration/chemically induced , Tamoxifen/adverse effects , Cataract/chemically induced , Breast Neoplasms/drug therapy
6.
Arq. bras. oftalmol ; 68(3): 407-409, maio-jun. 2005. ilus
Article in Portuguese | LILACS | ID: lil-410460

ABSTRACT

Relatar um caso de toxicidade ocular causada pela cloroquina. Aferiu-se a acuidade visual de ambos os olhos em tabela de Snellen. Foram realizados biomicroscopia do segmento anterior, refração, oftalmoscopia, angiofluoresceinografia e retinografia numa paciente de 53 anos, sexo feminino, portadora de artrite reumatóide. Fez uso de cloroquina por 6 anos e havia parado há um ano, quando veio ao nosso serviço. Apresentava acuidade visual corrigida de 20/200 e 20/40. A biomicroscopia do segmento anterior apresentava lente intra-ocular no olho direito e catarata nuclear 1+/4+ no olho esquerdo, com opacidade corneana subepitelial inferior ao eixo visual em ambos os olhos. A oftalmoscopia, apresentava mácula com aspecto de tacho batido (atrofia do epitélio pigmentar da retina). A angiofluoresceinografia mostrou maculopatia com aspecto de olho de boi. Relata-se um caso típico de ceratopatia e maculopatia causados pela cloroquina.


Subject(s)
Humans , Female , Middle Aged , Antirheumatic Agents , Keratitis/chemically induced , Chloroquine/adverse effects , Retinal Diseases/chemically induced , Visual Acuity/drug effects , Arthritis, Rheumatoid/drug therapy
7.
Revista Brasileira de Sexualidade Humana ; 2(11): 261-265, jul./dez. 2000.
Article | Index Psychology - journals | ID: psi-15158

ABSTRACT

O estudo da identidade cruzada tomou um novo impulso no pais em 1997, depois da liberacao, pelo Conselho Federal de Medicina, da cirurgia de transgenitalizacao. Este trabalho tem como objetivo a analise de um transexual da cidade de Mirassol, 30 anos e que tem sob sua guarda um menino de 7 anos. A analise do caso foi feita atraves de visitas domiciliares, entrevistas individuais e familiares, realizadas pelo departamento de Psiquiatria e Psicologia Medica de Famerp de Sao Jose do Rio Petro. Foi possivel verificar atraves do estudo que o presente caso apresenta os principais fundamentos teoricos do estudo da transexualidade: isto e, a questao da identidade, da orientacao sexual e dos papeis socio-sexuais.


Subject(s)
Case-Control Studies , Transsexualism , Case-Control Studies
SELECTION OF CITATIONS
SEARCH DETAIL