A infeção por retrovírus contribui para o desenvolvimento de linfoma em gatos e, apesar de estar associada a uma menor sobrevida, os estudos mais recentes não apontam como um fator determinante na avaliação do prognóstico desses indivíduos. No entanto, estes estudos foram realiz…
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According to a recent estimate by the World Health Organisation, by the year 2000 tuberculosis (TB) will kill 4 million people a year. This dramatic increase, from 3 million in 1992 to 4 million by year 2000, is an alarming signal for health workers. Endocrinological abnormaliti…
Multiple sclerosis (MS) is the most common cause of acquired neurological disability in young adults. It is a multifocal disease defined histologically by multiple inflammatory lesions of demyelination, axonal injury, astrogliosis and varying degrees of remyelination. MS has two…
Recent studies showed that admixture between modern humans and ancient hominin species was a ubiquitous phenomenon in the past. We now know that modern humans admixed with Neanderthals as well as Denisovans, an extinct hominin species, existence of which we acknowledged through …