Publications by authors named "Mai Kikumoto"

Article Synopsis
  • Pontine autosomal dominant microangiopathy and leukoencephalopathy is a hereditary condition linked to small vessel diseases affecting the brain, marked by small infarctions in the pons region.
  • Researchers conducted genetic sequencing and clinical assessments on a family with this undiagnosed condition and identified a specific genetic variant that confirmed the diagnosis in two other patients.
  • A notable radiological feature termed the "raisin bread sign" was discovered, characterized by multiple oval small infarctions in the pons, which corresponds with specific pathological changes observed postmortem.
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Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by the degeneration of motor neurons. Although repeat expansion in C9orf72 is its most common cause, the pathogenesis of ALS isn't fully clear. In this study, we show that repeat expansion in LRP12, a causative variant of oculopharyngodistal myopathy type 1 (OPDM1), is a cause of ALS.

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We evaluated a 39-year-old pregnant woman with right temporal lobe epilepsy. During the second trimester, seizure deterioration was responsive to an increased daily dose of levetiracetam (LEV). However, immediately after delivery, new non-habitual seizures emerged along with a sharply increased LEV concentration.

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A 65-year-old man presented with a slight headache and transient visual disturbance. Magnetic resonance imaging (MRI) revealed occlusion of the left internal carotid artery (ICA) and acute brain infarctions in both hemispheres, and a blood examination indicated inflammation. Gadolinium enhancement was observed in the walls of the temporal arteries and ICAs.

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Recent findings indicate that the human cardiovascular system is regulated by a cortical network comprised of the insular cortex (Ic), anterior cingulate gyrus, and amygdala which is necessary for the regulation of the central autonomic network system. Alzheimer disease (AD) affects the Ic at a preclinical stage. The pathology of AD at the Ic is suggested to predispose the cardiovascular system to detrimental changes such as increased blood pressure variability (BPV).

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We report a case of neuromyelitis optica (NMO) that was diagnosed at the age of 90. After initially developing visual loss in the right eye, a patient was diagnosed with optic neuritis. Although treatment with methylprednisolone therapy provided relief, 3 months later she developed optic neuritis on the other side.

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The cardiovascular system is regulated by a central autonomic network (CAN) consisting of the insular cortex, anterior cingulate gyrus, and amygdala. Because the insular cortex often tends to be damaged in patients with herpes simplex virus (HSV) encephalitis, the autonomic instability observed in these patients was suggested to be moderated by an insular cortex lesion. Here, we report the case of a 51-year-old Japanese male who was hospitalized following a collapse 5 days earlier; he was diagnosed as herpes encephalitis.

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