[Depressive disorders associated with neurocysticercosis: prevalence and clinical correlations]. / Transtornos depressivos associados à neurocisticercose. Prevalência e correlações clínicas.

OBJECTIVE: To determine the frequency and features of psychiatric morbidity in a cross-section of 38 outpatients with neurocysticercosis. METHODS: Diagnosis of neurocysticercosis was established by CT scan, MRI and CSF analysis. Psychiatric diagnoses were made by using the Present State Examination and the Schedule for Affective Disorders and Schizophrenia. Lifetime version; cognitive state was assessed by Mini-Mental State Examination and Strub & Black's Mental Status Examination. RESULTS: Depression was the most frequent psychiatric diagnosis (52.6%) as shown by PSE. Active disease and intracranial hypertension were associated with higher psychiatric morbidity, and previous history of mood disorders was strongly related to current depression. CONCLUSIONS: Depression syndromes are frequent in patients with neurocysticercosis. The extent to which organic mechanisms related to brain lesions may underlie the observed mental changes is yet unclear, though the similar sex distribution of patients with and without depression, as well as the above mentioned correlations, provide further evidence of the role played by organic factors in the cause of these syndromes. The results of this study are discussed in the light of the data available for other organic psychiatric disorders.

[Non-Hodgkin lymphoma in adults. Protein profile of CSF and serum in 25 patients]. / Linfoma não-Hodgkin em adultos. Perfil proteico do lcr e do soro de 25 doentes.

Twenty-five non-Hodgkin's adult patients of a cohort studied for detection of neurologic involvement were evaluated on the cerebrospinal fluid (CSF) protein profile. CSF and serum were collected in the same occasion. Blood-brain barrier and local synthesis of IgG were studied. There was an incidence of neurologic signs and symptoms in 48% of all patients. Samples analysis showed: increase of total protein in CSF in 52%; local synthesis of IgG in one HIV seropositive patient; IgG concentration increase in the CSF in the absence of malignant cells in the CSF in two patients that clinically improved after chemotherapy; oligoclonal bands only in the CSF in one HTLV-I seropositive patient. These data show that the study of CSF protein profile can contribute in the characterization of CNS involvement in non-Hodgkin lymphoma.

[Cryptococcus neoformans chemotyping. Review of the literature. New epidemiologic data on cryptococcosis. Our experience with the use of C.G.B. media in the study of this yeast]. / Quimiotipagem do Cryptococcus neoformans. Revisão da literatura. Novos dados epidemiológicos sobre a criptococose. Nossa experiência com o emprego do meio de C.G.B. no estudo daquela levedura.

The purpose of this work was to collect the main information from the literature about the biotyping of Cryptococcus neoformans. The more up-to date research concerning the epidemiology of cryptococcosis comprising quite a few articles, mainly after the advent of AIDS, was also reviewed. The Cryptococcus neoformans varieties neoformans and gattii are well defined biochemically nowadays chiefly through the C.G.B. medium, according to Kwon-Chung et al. (1982). The isolation of C. neoformans var. gattii from flowers and leaves of Eucalyptus camaldulensis and Eucalyptus tereticornis, specially in Australia, through the works of Ellis & Pfeiffer (1990) and Pfeiffer & Ellis (1992) permitted very interesting epidemiological investigations on C. neoformans, a capsulated yeast by which Sanfelice, in Italy (1894; 1895) attracted attention of medical class. Busse, in 1894, described the first human case of cryptococcosis under the presentation of a bone lesion simulating sarcoma. In this paper, the Brazilian researchers focused on this subject were pointed out, followed by the Author's experience with the C.G.B. medium (L-canavanine, glycine and bromothymol blue) proposed by Kwon-Chung et al. (1982) with very good results. It was possible with such medium the study of 50 C.N.S. liquor samples, being 39 from AIDS patients (78%) and 11 from non-AIDS ones (22%). Thirty-seven out of the 39 HIV-positive patients (74%) were identified as C. neoformans var. gattii. From the negative HIV, 8 (16%) were classified as C. neoformans var. neoformans and 3 (6%) as C. neoformans var. gattii. We could not perform the serotyping of the above referred samples. It is evident anyway that in Brazil there exist both varieties gattii and neoformans, agents of neurocryptococcosis, including AIDS patients. The importance of neurocryptococcosis, mainly among AIDS patients, is stressed here, showing once more the value of C.G.B. medium in the typing of C. neoformans in its two varieties. Also, it is of relevant importance the demonstration that some species of eucalyptus may act as "host-trees" of C. neoformans var. gattii.