ON THE COVER: A section through the brain of a patient with type-2 diabetes showing vascular deposition of amylin (brown) and astroglial reaction (green stain for glial fibrillary acidic protein). See Ly et al, pages 208–222, in this issue for details.
Objective: To determine the usefulness of dopamine transporter (DAT) imaging to identify idiopathic REM sleep behavior disorder (IRBD) patients at risk for short-term development of clinically-defined synucleinopathy.
Methods: Eighty-seven patients with polysomnography-confirmed IRBD underwent 123I-FP-CIT DAT-SPECT. Results were compared with 20 matched controls without RBD who underwent DAT-SPECT.
Objective: Loss of cognition even after survival is the salient feature of cerebral malaria (CM). Currently, the fate of neuronal morphology is not studied at the ultra-structural level in CM. Recent studies suggest that maintenance of neuronal morphology and dendritic spine density (actin dynamics in particular) are essential for proper cognitive functions.
Primary and secondary conditions leading to thiamine deficiency have overlapping features in children, presenting with acute episodes of encephalopathy, bilateral symmetric brain lesions, and high excretion of organic acids that are specific of thiamine-dependent mitochondrial enzymes, mainly lactate, alpha-ketoglutarate, and branched chain keto-acids.
Despite numerous studies suggesting the role of insular cortex in the processing of gustatory and olfactory inputs, the exact location of olfactogustatory representation in the insula remains controversial. Here we provide a functional mapping of olfactory–gustatory responses to stimulation of the human insular cortex.