Thesis--M.D., University of Hong Kong. / Typescript.

published_or_final_version / Medicine / Master / Doctor of Medicine

No description available.

Proefschrift--Universiteit Leiden, 2007. / Description based on print version record. Includes bibliographical references.

Thesis (D.P.E.)--Springfield College, 2002. / Includes bibliographical references.

A model for the study of the relationship of immunity to cancer is found in AKR mice which harbor Gross virus. This genetically transmitted virus is present in a latent form for months before it spontaneously induces leukemia. Many investigators have demonstrated near normal humoral responses, but abnormal cellular immunity in the preleukemic animal. With increasing age, pathology of the disease is expressed, reflecting diminished immunity. In this study, the ontogeny of humoral antibodies of AKR/J and SWR/J mice was assayed by microagglutination techniques in response to thymus-independent, thymus-dependent, and solubilized antigens. Simultaneous injections of thymusdependent and -independent antigens provided data suggesting an impaired humoral response in the AKR mouse.

Orientador: Alexandre Augusto Zaia / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-08-06T06:09:06Z (GMT). No. of bitstreams: 1 Almeida_JoseFlavioAffonsode_D.pdf: 2803790 bytes, checksum: 523bf1872c348721161eafd32bb6f736 (MD5) Previous issue date: 2006 / Resumo: Este estudo teve como objetivos identificar por técnica de imunohistoquímica linfócitos T4, linfócitos T8, linfócitos B, macrófagos e mastócitos em tecidos pulpares normais e inflamados de dentes humanos e correlacionar a presença dessas células com os sinais e sintomas apresentados pelos pacientes e aspectos clínicos dos dentes. Após a determinação do diagnóstico clínico das condições pulpares, 24 polpas normais e 18 polpas inflamadas foram coletadas de dentes extraídos clivados ou por extirpação em dentes que foram submetidos à endodontia. As polpas foram processadas histologicamente, sendo que uma secção tecidual de cada amostra foi corada por hematoxilina e eosina e as demais foram utilizadas para a imunohistoquímica. As lâminas foram analisadas em microscopia de luz. Cinco campos com maior intensidade de marcação foram capturados, tiveram suas áreas mensuradas e o número de células contado. Em polpas normais, os linfócitos T8 apresentaram maior número de células marcadas, seguidos pelos linfócitos T4, macrófagos, linfócitos B e mastócitos. Diferenças significantes foram encontradas, com maior número de linfócitos T8 quando comparados aos linfócitos B e mastócitos (Kruskal-Wallis - p< 0,05). Em polpas inflamadas, os macrófagos apresentaram maior número de células positivas seguidos dos linfócitos T8, T4, B e mastócitos. Não houve diferença estatística significante entre as densidades das células estudadas em polpas inflamadas (Kruskal-Wallis - p> 0,05). Dessa forma, concluiu-se que os linfócitos T4, T8 e B, macrófagos e mastócitos podem ser identificados em diferentes proporções nos tecidos pulpares normais e inflamados. Entretanto, não houve correlação entre a sintomatologia apresentada pelos pacientes e o aumento do número dessas células em todos os tecidos pulpares classificados clinicamente como inflamados / Abstract:The aim of this study was to identify by immunohistochemical technique T4 lymphocytes, T8 lymphocytes, B lymphocytes, macrophages and mast cells in normal and inflamed human dental pulps and to correlate the presence of these cells to the signals and symptoms presented by the patients and the teeth clinical aspects. After the clinical diagnoses, 24 normal dental pulps and 18 inflamed dental pulps were collected from extracted teeth or by extirpation during endodontic procedures. After dental pulp histological procedures, one tissue section from each specimen was stained with hematoxylin and eosin and the other sections were used to immunohistochemical analyses. The slides were analyzed by light microscopy. Five fields with more intensive immunostaining were captured, measured and the positive cells were counted. In normal pulps, T8 lymphocytes presented more positive cells followed by T4 lymphocytes, macrophages, B lymphocytes and mast cells. Statistical significance was founded with more T8 lymphocytes than B lymphocytes and mast cells (Kruskal-Wallis ¿ p< 0.05). In inflamed dental pulps, macrophages presented more positive cells, followed by T8, T4, B lymphocytes and mast cells. These data were not statistically significant (Kruskal-Wallis ¿ p> 0.05). It was concluded that T4, T8 and B lymphocytes, macrophages and mast cells could be identified with different rates in normal and inflamed dental pulps. However, no correlation was detected between the patient¿s symptomatology and these cells increase in all inflamed dental pulps / Doutorado / Endodontia / Doutor em Clínica Odontológica

Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Nutrition and Food Science. / Microfiche copy available in Archives and Science. / Bibliography: leaves 70-78. / by Gwendolyn C. Murphy. / M.S.

Thesis (Ph.D.)--Mississippi State University. College of Veterinary Medicine. / Title from title screen. Includes bibliographical references.