Neste estudo retrospectivo (1980-1998), analisamos clínico-demograficamente, a partir dos prontuários do Hospital Universitário de Fortaleza (Brasil), um grupo de 87 pacientes que apresentavam sinais e sintomas de doenças do neurônio motor (DNMs). Eles foram diagnosticados clinicamente, e através de exames complementares. Para o diagnóstico da esclerose lateral amiotrófica (ELA), usamos os critérios da Federação Mundial de Neurologia. A análise clínico-demográfica dos 87 casos de DNMs evidenciou a existência de 4 casos de atrofia muscular espinhal (AME), 5 casos de variantes da ELA: 2 de paralisia bulbar progressiva (PBP), 2 de atrofia muscular progressiva (AMP) e 1 de amiotrofia monomélica (AM), e 78 casos de ELA. Esses últimos eram constituídos de 51 homens e 27 mulheres, com uma idade média de 42,02 anos. Eles foram subdivididos em 4 grupos etários: de 15 a 29 anos (n= 17), de 30 a 39 anos (n= 18), de 40 a 69 anos (n= 39) e de 70 a 78 anos (n= 4). Dos 78 casos de ELA, 76 eram da forma esporádica clássica, enquanto que apenas 2 da forma familiar. A análise dos 87 pacientes com DNMs do Hospital Universitário de Fortaleza mostrou predomínio de pacientes com ELA, com um número elevado de casos de ELA juvenil e da forma adulta de início precoce.

In this retrospective (1980-1998) study, we have analyzed clinico-demographically, from the records of the University Hospital of Fortaleza (Brazil), a group of 87 patients showing signs and symptoms of motor neuron diseases (MNDs). Their diagnosis was determined clinically and laboratorially. The WFN criteria were used for amyotrophic lateral sclerosis (ALS) diagnosis. The clinico-demographic analysis of the 87 cases of MNDs showed that 4 were diagnosed as spinal muscular atrophy (SMA), 5 cases as ALS subsets: 2 as progressive bulbar paralysis (PBP), 2 as progressive muscular atrophy (PMA) and 1 as monomelic amyotrophy (MA), and 78 cases of ALS. The latter comprised 51 males and 27 females, with a mean age of 42.02 years. They were sub-divided into 4 groups according to age: from 15 to 29 years (n= 17), 30 to 39 years (n= 18), 40 to 69 years (n= 39) and 70 to 78 years (n= 4). From the 78 ALS patients, 76 were of the classic sporadic form whilst only 2 were of the familial form. The analysis of the 87 patients with MNDs from the University Hospital of Fortaleza showed a predominance of ALS patients, with a high number of cases of juvenile and early onset adult sporadic ALS.

A infecção e mielopatia associada ao HTLV-I têm sido reproduzidas experimentalmente in vitro e in vivo e esses estudos têm evidenciado a possibilidade de criar várias linhas celulares infectivas e de detectar micro e macro-expressões clínicas de mielopatia associada ao HTLV-I em coelhos e ratos.

HTLV-I infection and associated myelopathy has been reproduced experimentally in vitro and in vivo and these studies have shown the possibility of creating several lines of infective cells and of detecting minor and major clinical expressions of HTLV-I associated myelopathy in rabbits and rats.