Publications by authors named "Yu Hongo"

We report an invasive mycosis case in Japan caused by Bjerkandera adusta, a fungal species not previously reported as a causative pathogen of invasive mycosis. B. adusta was identified by using phylogenetic analysis.

View Article and Find Full Text PDF

A 56-year-old woman who presented with left drop foot and low back pain a week after the onset of diarrhea. Neurological symptoms progressed for a week and gradually improved thereafter. No weakness was observed in upper limbs and clearly asymmetrical muscle weakness was observed in left lower limbs during the course of the disease.

View Article and Find Full Text PDF

Tuberculous meningitis (TBM) is a central nervous system infection with a high mortality rate and requires early diagnosis and treatment. Identification of Mycobacterium tuberculosis in the cerebrospinal fluid is of primary importance in the diagnosis of TBM, however, conventional methods have some disadvantages: Rapid results tests such as smear and regular PCR method do not have sufficient diagnostic sensitivity; Nested PCR, which is one of the most sensitive tests, is not available in all facilities; Culture tests require a long period of 4-8 weeks for results. Here we report a case of TBM, diagnosed 14 days earlier than culture test by direct Loop-Mediated Isothermal Amplification (LAMP) method using centrifuged medium of cerebrospinal fluid (day 18) culture.

View Article and Find Full Text PDF

The patient was a 14-year-old boy with two previous episodes of self-remitting right ophthalmoplegia with right temporal pain at ages 9 and 12. In 2019, he developed right eyelid ptosis and diplopia 2 days after a pulsating right-sided temporoparietal headache. Recurrent headaches with ophthalmoplegia responded to high-dose steroid therapy, and the clinical features resembled recurrent painful ophthalmoplegic neuropathy (RPON).

View Article and Find Full Text PDF

Background: Partition cells are cholinergic interneurons located in lamina VII of the spinal cord. Some partition cells are the source of the cholinergic boutons, known as C-terminals or C-boutons, that modulate the activity of spinal motor neurons. Therefore, partition cells might play an important role in motor control.

View Article and Find Full Text PDF
Article Synopsis
  • The case report discusses a 56-year-old patient with recurrent multifocal neuropathy and ophthalmoplegia linked to IgM anti-GM1 antibodies and febrile relapses.
  • She initially experienced sensory disturbances in her limbs after a fever at age 50 and has had several similar episodes since then.
  • Treatment with intravenous immunoglobulin (IVIg) led to partial improvement and no relapses after one year, suggesting her condition may represent a unique form of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP).
View Article and Find Full Text PDF

We analysed the effect of adding cholesterol to glycolipid antigens on antibody activity with enzyme-linked immunosorbent assay in 123 subjects consisting of 96 patients with Guillain-Barré syndrome, 25 Miller Fisher syndrome, and two Bickerstaff brainstem encephalitis. The use of cholesterol-added GM1 antigens increased anti-GM1 activity in 11 out of 23 anti-GM1-positive patients and resulted in six out of 100 anti-GM1-negative patients becoming anti-GM1-positive. Enhancement of anti-GM1 activity by cholesterol addition was significantly associated with antecedent gastrointestinal infection.

View Article and Find Full Text PDF

We report the first case of Guillain-Barré syndrome (GBS) associated with SARS-CoV-2 infection in Japan. A 54-year-old woman developed neurological symptoms after SARS-CoV-2 infection. We tested for various antiganglioside antibodies, that had not been investigated in previous cases.

View Article and Find Full Text PDF

The author would like to correct the errors in the publication of the original article. The corrected details are given below for your reading.

View Article and Find Full Text PDF

Objectives: To investigate a diversity of stroke-like episodes (SLEs) in mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS), and report a disseminated form of SLEs (D-SLEs) attributed to a cluster of disseminated small cortical lesions.

Methods: We retrospectively reviewed the clinical information of 27 MELAS patients seen at Kitasato University Hospital between January 1990 and April 2018. Among those, we selected 13 patients with m.

View Article and Find Full Text PDF

We experienced a right-handed 53-year-old man who presented with disturbance of consciousness and fever. Herpes simplex encephalitis (HSE) was diagnosed based on the detection of herpes simplex virus DNA in the cerebrospinal fluid. The administration of acyclovir for 42 days improved his consciousness level.

View Article and Find Full Text PDF

Antiganglioside antibodies are known to play a pathogenic role in development of Guillain-Barré syndrome (GBS) and Fisher syndrome (FS). Recently, antibodies to ganglioside complexes (GSCs) consisting of two different gangliosides were found in some patients with GBS and FS. Some anti-GSC antibodies such as anti-GD1a/GD1b, anti-GM1/GQ1b or anti-GM1/GalNAc-GD1a antibodies correlate with specific clinical features.

View Article and Find Full Text PDF

Large cholinergic synaptic boutons called "C-terminals" contact motoneurons and regulate their excitability. C-terminals in the spinal somatic motor nuclei originate from cholinergic interneurons in laminae VII and X that express a transcription factor Pitx2. Cranial motor nuclei contain another type of motoneuron: branchiomotor neurons.

View Article and Find Full Text PDF

We report a case of a 67 year-old man with bilateral sensory ataxia of the upper extremities. He was diagnosed as having ANCA-related angitis and Sjögren syndrome at age 60. On admission to our hospital at age 67, he presented with severe sensory ataxia in his upper extremities, while his lower extremity neurological symptoms were limited to the absence of tendon reflexes.

View Article and Find Full Text PDF