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Biomedical subjects

S Van den Noort

Publications and source records attributed to S Van den Noort.

12 recordsLinked to original sources

Experimental cerebral schistosomiasis japonica in primates.

Aspects of the pathogenesis of cerebral schistosomiasis have been elucidated. Arterial embolization alone, by either worms or eggs, does not appear to be likely as a major cause of the disease. When large numbers of eggs enter the brain, sensitization may play a role in the occurrence of neurological signs. These studies support but do not prove the theory that worms in the cerebral veins lay eggs that then cause the disease.

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Olfactory tests as possible probes for detecting and monitoring Alzheimer's disease.

One of the characteristics of Alzheimer's disease is the early loss of neurons in pathways involved in processing olfactory information. Olfactory function was assessed in subjects with Alzheimer's disease using a conventional Smell Identification Test and a simple three odor match-to-sample problem. The patients exhibited a diminished capacity to identify common odors but were severely impaired in their ability to use novel odors in a match-to-sample task. Subjects with Parkinson's disease had a severe deficit for identifying common odors with the majority scoring as anosmic. Multiple sclerosis was not accompanied by detectable changes in olfactory functioning. The results of the Alzheimer's group are similar to recent animal studies that have shown lesions of the piriform-entorhinal cortex produce a variety of memory deficits that are particularly acute in tasks involving novel odors.

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