The University of Osaka · Medicine
Professor Kuriko Kagitani-Shimono's research lab focuses on the neurobiological mechanisms underlying neurodevelopmental and neurodegenerative disorders, with a particular emphasis on autism spectrum disorder (ASD) and leukodystrophies such as Krabbe's disease. The lab investigates auditory processing abnormalities in ASD, especially in relation to auditory hypersensitivity, using neuroimaging techniques like magnetoencephalography (MEG) to examine cortical responses. It also explores the role of neuroinflammatory pathways and neuroprotective factors—such as TNF-alpha and lipocalin-type prostaglandin D synthase (L-PGDS)—in demyelinating diseases, aiming to identify therapeutic targets. The lab integrates clinical neuroscience with preclinical models to understand disease progression and evaluate potential treatments.
Figures are computed from collected data and may differ slightly.
The aim of this study was to investigate the differential responses of the primary auditory cortex to auditory stimuli in autistic spectrum disorder with or without auditory hypersensitivity. Auditory-evoked field values were obtained from 18 boys (nine with and nine without auditory hypersensitivity) with autistic spectrum disorder and 12 age-matched controls. Autistic disorder with hypersensitivity showed significantly more delayed M50/M100 peak latencies than autistic disorder without hyperse
BACKGROUND: Twitcher mouse (twi/twi) is an authentic murine model of Krabbe's disease. Accumulation of psychosine, resulting in apoptosis of oligodendrocytes and subsequent demyelination, is a cardinal event to the pathogenesis of this disease. Moreover, recruitment of inflammatory cells plays a significant role in the pathological process in the twi/twi central and peripheral nervous systems. In this study, we investigated the 1) the relationship between tumor necrosis factor-alpha (TNFalpha),
Patients with autism spectrum disorder (ASD) often show pervasive and complex language impairments that are closely associated with aberrant structural connectivity of language networks. However, the characteristics of white matter connectivity in ASD have remained inconclusive in previous diffusion tensor imaging (DTI) studies. The current meta-analysis aimed to comprehensively elucidate the abnormality in language-related white matter connectivity in individuals with ASD. We searched PubMed, W
The aim of this study was to investigate the differential time-course responses of the auditory cortex to repeated auditory stimuli in children with autism spectrum disorder (ASD) showing auditory hypersensitivity. Auditory-evoked field values were obtained from 21 boys with ASD (12 with and 9 without auditory hypersensitivity) and 15 age-matched typically developing controls. M50 dipole moments were significantly increased during the time-course study only in the ASD with auditory hypersensitiv
Lipocalin-type prostaglandin D synthase (L-PGDS), which is mainly synthesized in leptomeningeal cells and oligodendrocytes (OLs) in rodents and humans, is secreted into the human cerebrospinal fluid (CSF) as beta-trace. L-PGDS protects OLs and neurones against apoptosis in twitcher mice, a murine model of Krabbe's disease, and is the second only to a stress protein, alphaB-crystallin, as the most abundant gene product upregulated in the demyelinating focus of multiple sclerosis (MS). Here we rep
We identified that, in most patients of Wolf-Hirschhorn syndrome, the frequency of both seizures and status epilepticus decreased gradually after age 5 years. However, during infancy, status epilepticus sometimes resulted in permanent disability or even death. We propose that sodium bromide should be used as the initial treatment for the prevention of the development of status epilepticus associated with Wolf-Hirschhorn syndrome.
This study indicates that [<sup>11</sup>C] DPA713 uptake has valuable sensitivity in the identification of epileptic foci in child-onset focal epilepsy, and inflammation is implicated in the pathophysiology in the epileptic foci caused by various etiologies. Further research is required to establish diagnostic tools for identifying focal epileptogenic zones.
Although abnormal auditory sensitivity is the most common sensory impairment associated with autism spectrum disorder (ASD), the neurophysiological mechanisms remain unknown. In previous studies, we reported that this abnormal sensitivity in patients with ASD is associated with delayed and prolonged responses in the auditory cortex. In the present study, we investigated alterations in residual M100 and MMFs in children with ASD who experience abnormal auditory sensitivity. We used magnetoencepha
This report concerns an 11-year-old boy who manifested hypophosphatemic rickets associated with congenital microvillous atrophy (CMA). He had been suffering from vomiting and severe diarrhea from the first day of life and had been treated with total parenteral nutrition (TPN) since he was 67 days old. At 4 years of age, intestinal biopsy resulted in a diagnosis of CMA. He was admitted to our hospital complaining of leg pain at the age of 11. Laboratory data revealed hypophosphatemia, elevated se
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