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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Hialinose cutaneo-mucosa : estudo clinico e das especificidades HLA / Mucous-cutaneuos hyalinosis : the clinical and histocompatibility antigens study

Rodrigues, Marcelo 29 February 2008 (has links)
Orientador: Heron Fernando de Sousa Gonzaga / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-08-10T16:40:54Z (GMT). No. of bitstreams: 1 Rodrigues_Marcelo_D.pdf: 760160 bytes, checksum: 48a5a2282ffba53fa69fd0f990fa8ed0 (MD5) Previous issue date: 2008 / Resumo: A hialinose cutâneo-mucosa (HCM) é uma dermatose autossômica recessiva rara, congênita, de aparecimento precoce na infância. Caracteriza-se por deposição de material hialino, que se acumula na pele e mucosas. Foram descritos 258 casos na literatura mundial e no Brasil, doze casos. A HCM apresenta aumento da expressão do colágeno tipo IV e V e redução da expressão do colágeno I e III. Esta doença foi mapeada no locus do cromossomo 1q21. Mutações patogênicas foram identificadas no gene ECM1. A doença é caracterizada por voz rouca, pápulas cutâneas amareladas, cicatrizes atróficas, lesões ulceradas cutâneas, blefarose moniliforme e conjuntivite pseudo-membranosa. Manifesta multiplicidade de sintomas, afetando vários órgãos. A revisão da literatura sobre HLA e HCM não mostrou nenhum trabalho. Realizou-se o estudo clínico e das especificidades HLA na família de uma afetada por HCM. Foram submetidos a exames clínicos e complementares. A tipificação HLA foi realizada através da análise de DNA genômico pela técnica de PCR-SSP. A afetada era branca, com 14 anos. Referia choro rouco desde o nascimento e eritema na região subescapular e cervical há 13 anos, que evoluiu para vesículas e posteriormente, micropápulas, que se rompiam, evoluindo para lesões ulceradas. Nesses locais, apareciam verrucosidades nos ângulos da boca, joelhos, cotovelos e regiões palmares. Concomitantemente, evoluiu para micropápulas hipocrômicas no dorso das mãos e axilas. Referia disfagia. Negava história familiar. Ao exame dermatológico, pápulas amareladas nas pálpebras e linearmente na borda livre; cicatrizes atróficas varioliformes nas regiões antecubitais; placas verrucosas nos cotovelos, regiões palmares, joelhos; pápulas amareladas em dorso das mãos e região cervical posterior. Apresentava alopecia parieto-occipital. Ao exame bucal, abertura limitada, endurecimento labial, lesões vegetantes no ângulo da boca, placas branco-amareladas em regiões de mucosa jugal, vestibular, orofaringe, dorso e ventre da língua. Ulcerações linguais e no palato duro e mole. Xerostomia discreta foi observada. Ao exame dentário, placa bacteriana, cálculos e agenesia do dente 22. A gengiva era friável, hipertrófica com bolsas periodontais. Ao exame oftalmológico, obstrução das vias lacrimais, mucosa espessada nos pontos lacrimais e prurido periocular. Diagnóstico psiquiátrico de Distimia foi estabelecido. Na avaliação neurológica, cefaléia. O exame clínico nos outros membros da família não mostrou nenhum traço da doença. Na fibronasofaringolaringoscopia, espessamento epidérmico em epiglote e hipertrofia de falsas cordas, pregueamento mucoso em prega interaritenóidea. O EEG não mostrou anormalidades. A tomografia computadorizada apresentou calcificações parenquimatosas hipocampais bilaterais. O exame histopatológico confirmou o diagnóstico de HCM. Constatou-se que sendo a doença autossômica recessiva, a ausência de manifestações clínicas nos pais da afetada, mostrou serem os mesmos heterozigotos. As manifestações clínicas são importantes para o diagnóstico. A primeira manifestação clínica mais freqüente na literatura, apresentada pela afetada, é a rouquidão. As manifestações clínicas mais exuberantes na doença são as cutâneas e mucosas. O estudo das especificidades HLA determinou os seguintes haplótipos na afetada: A31-B39-Cw7-DR4-DQ8 e A74-B7-Cw7-DR8-DQ-. A paciente era haploidêntica a um dos seus dois meioirmãos. Este foi o primeiro trabalho em que se investigou especificidades HLA em portador de HCM / Abstract: Cutaneous-mucous hyalinosis (CMH) is a rare congenital autosomal recessive dermatose, which is presented precociously in early childhood. It is characterized by disposition of hyaline material that accumulates in the skin and cutaneous mucous. 258 cases were described in the world and 12 cases in Brazil. The CMH presents an increase of the expression of the collagen types IV and V and reduction of the expression of the collagen I and II. The disorder was mapped in a locus on chromosome 1q21 and pathogenic mutations were identified in the ECM1 gene. The disease is characterized by hoarse voice, yellowed cutaneous papules, atrophic scars, ulcerated cutaneous lesions, moniliform blepharosis, and pseudomembranous conjunctivitis. It manifests multiple symptoms affecting several organs. The review of literature about HLA as well as CMH has not presented any work so far. The clinical study as well as of the HLA antigens in the family of an individual affected by CMH was performed. They were submitted to clinical and auxiliary tests. The HLA type was accomplished through the analysis of genome DNA by the technique of PCR-SSP. The proband was a 14 year old white female. It referred hoarse crying from the birth and erythema in the sub-omoplate and cervical area 13 years ago which developed for vesicles and later on, micropapules that broke up, developing for ulcerated lesions, verrucous lesions in the angles of the mouth, knees, elbows and palm areas appeared. Concomitantly it developed for hypochromic micropapules in the back of the hands and armpits. It referred dysphagia. There was no history family. During the dermatological examination she presented yellowed papules in the eyelids and lineally in the free border; atrophic varioliform scars in the ante-cubital areas; verrucous plates in the elbows, palm areas and knees: yellowed papules in the back of the hands and posterior cervical area. She showed Parietal-occipital alopecia. During the oral examination she Presented limited opening, labial hardening, vegetative lesions in the angle of the mouth, white yellowed plaques in the areas of buccal, vestibular, oro-pharynx, dorsal and ventral tongue mucous membranes. Tongue ulcerations and also in the hard and soft palate. Discreet xerostomia was observed. During the dental examination, bacterial plaque, calculous and agenesis of the tooth 22. The gengive was friable, hypertrophic with periodontal depressions. During the ophthalmic examination, obstruction of the lacrimal via, thickened mucous in the lacrimal vias and perio-ocular pruritis. Psychiatric diagnosis of Dysthymia was estableshed. In the neurological evaluation, migraine. The clinical examination in the other members of the family did not show any line of the disease. Epidermal thickening in the epiglottis and hypertrophy of false strings, mucous pleatment in interarytenoide pleat were found. EEG did not show abnormalities. Computed tomography presented bilateral parenchymatosis hippocampus calcifications. The histopathology examination confirmed the diagnosis of CMH. It was verified because of the disease was recessive autosomal, the absence of clinical manifestations in the parents of the affected individual who were heterozygote. The clinical manifestations are important for the diagnosis. The most frequent clinical manifestation in the literature, presented by the affected girl, is the hoarse voice. The most exuberant clinical manifestations in the disease are the cutaneous and the mucous ones. The study of the HLA antigens determined the following haplotypes in the affected girl: A31-B39-Cw7-DR4-DQ8 and A74-B7-Cw7DR8-DQ- . She is haplo-identical to one of two her middle-siblings. This was the first work in which HLA antigens were investigated in carrier of CMH / Doutorado / Estomatologia / Doutor em Estomatopatologia

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