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Biomedical subjects

D Vasconcelos

Publications and source records attributed to D Vasconcelos.

17 recordsLinked to original sources

Lesions caused by natural infection with Streptococcus suis type 9 in weaned pigs.

In this paper we report on the spectrum and frequency of lesions observed in a prospective study of naturally occurring infections with Streptococcus suis type 9 (SS-9) in weaned pigs. SS-9 produced arthritis, meningitis, interstitial pneumonia, and endocarditis in 100%, 91%, 73%, and 42%, respectively, of pigs dying from the disease. The lesions were similar to those caused by S. suis type 2 (SS-2), however, SS-9 produced a different frequency of lesions. In SS-2 infections, bronchopneumonia is the most commonly observed lesion; meningitis, arthritis, and endocarditis are less frequently observed. Thus, SS-9 produced a different distribution of lesions from that reported for SS-2. Possible explanations for the differences found are discussed.

Animals

Selective indications for the use of praziquantel in the treatment of brain cysticercosis.

The selective use of praziquantel for the treatment of brain cysticercosis in human beings is described, based upon the results of clinical tests conducted during a 2 year period. Forty patients with clinical diagnosis of cysticercosis, confirmed and documented by CT, were treated. They are divided into four groups, representative of the various forms of the disease. The results assessed by clinical evaluation and sequential CT, give a ten point criterion of the indications for praziquantel.

Brain Diseases

[Epileptic seizures as initial symptom of intracranial tumors. A prospective study in adults].

A prospective study of 125 patients with late-onset epileptic crisis: Group G I with 65 cases between 20 and 50 years of age, and Group G II, including 60 patients older than 50 years at the time of the first crisis. Brain tumors were diagnosed in fourteen cases, four (6.1%) in G I and ten (16.6%) in G II. In decreasing order of frequency, the ictal pattern was tonic-clonic, status epilepticus, partial simple, partial complex and "drop-attacks". The lesions were located as follows:frontal in seven subjects, parietal in four, multiple in two and temporo-basal in one. Histologically, the tumors were three meningiomas, two gliomas, one astrocytoma, and three metastatic lesions. These findings agree with those of other series, in terms of predominant type of crisis, site and histologic type; but they differ in the age of first symptoms, and in the fact that tumors occupy only a third place as cause of epileptic crisis.

Adult

[Alzheimer's disease].

The primary degenerative dementia of Alzheimer type, present denomination, represents a medical, social and economical problem. The early diagnosis, based on medical criteria, might improve some aspects of the expected evolution of these, up to date, hopeless patients.

Adult

[Alzheimer's disease. Considerations for its clinical diagnosis].

This paper present features for identifying, on a clinical basis, the syndromatic complex "primary degenerative dementia of Alzheimer's disease type". Data are included which aid in the identification among the broad picture of dementia disorders. Information is presented about the most recent histopathological findings, the study proceedings and therapeutic trends.

Alzheimer Disease