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  1. Article

    Open Access

    A case report of reversible cerebral vasoconstriction syndrome with thunderclap headache significantly exacerbated in the supine position and alleviated in the standing position

    Reversible cerebral vasoconstriction syndrome (RCVS) is characterized by sudden onset thunderclap headache and multiple segmental reversible cerebral vasoconstrictions that improve within 3 months. The postpar...

    Genri Toyama, Shintaro Tsuboguchi, Kazuya Igarashi, Etsuji Saji… in BMC Neurology (2023)

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  2. No Access

    Article

    Ursane-type triterpene oligoglycosides with anti-hepatosteatosis and anti-hyperlipidemic activity from the leaves of Ilex paraguariensis A. St.-Hil.

    The methanol extract from the leaves of Ilex paraguariensis A. St.-Hil. (Aquifoliaceae), popularly known as mate, maté, or yerba maté, inhibits the intracellular triglyceride accumulation in HepG2 cells and suppr...

    Akifumi Nagatomo, Naoki Inoue, Takuya Konno, Yin Xu… in Journal of Natural Medicines (2022)

  3. No Access

    Article

    Do patients with multiple system atrophy have decreased nocturnal urinary concentration?

    Yusuke Sakata, Masato Kanazawa, Masahiro Hatakeyama… in Clinical Autonomic Research (2021)

  4. Article

    Open Access

    Identification and functional characterization of novel mutations including frameshift mutation in exon 4 of CSF1R in patients with adult-onset leukoencephalopathy with axonal spheroids and pigmented glia

    Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) is caused by mutations in CSF1R. Pathogenic mutations in exons 12–22 including coding sequence of the tyrosine kinase domain (TKD) o...

    Takeshi Miura, Naomi Mezaki, Takuya Konno, Akio Iwasaki… in Journal of Neurology (2018)

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  5. Article

    Open Access

    Efficacy of teriparatide in the treatment of nontraumatic osteonecrosis of the femoral head: a retrospective comparative study with alendronate

    Collapse of the femoral head associated with nontraumatic osteonecrosis (NOFH) is one of the most common causes of disability in young adult patients. Excessive bone resorption by osteoclast coincident with th...

    Ryuta Arai, Daisuke Takahashi, Masahiro Inoue, Tohru Irie… in BMC Musculoskeletal Disorders (2017)

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  6. Article

    Open Access

    Heterogeneity of cerebral TDP-43 pathology in sporadic amyotrophic lateral sclerosis: Evidence for clinico-pathologic subtypes

    Frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS) are types of major TDP-43 (43-kDa TAR DNA-binding protein) proteinopathy. Cortical TDP-43 pathology has been analyzed in detail ...

    Ryoko Takeuchi, Mari Tada, Atsushi Shiga… in Acta Neuropathologica Communications (2016)

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  7. No Access

    Article

    Variable expression of microglial DAP12 and TREM2 genes in Nasu-Hakola disease

    Nasu-Hakola disease (NHD) is a form of presenile dementia associated with sclerosing leukoencephalopathy and polycystic lipomembranous osteodysplasia. This extremely rare inherited disease is caused by mutatio...

    Atsushi Sasaki, Akiyoshi Kakita, Kunihiro Yoshida, Takuya Konno… in neurogenetics (2015)

  8. No Access

    Article

    Focusing effect measurements of artificial dielectric multilayer lens with metal rectangular chips for terahertz wave band

    This paper presents the design and fabrication of an artificial multilayer lens comprising ten layers of metal rectangular chips on a cyclo olefin polymer, which has low loss in the terahertz band. Measurement...

    Yuki Takebayashi, Takuya Konno, Shouhei Shimada, Fumiaki Miyamaru… in Applied Physics A (2014)

  9. No Access

    Article

    Parallel plate lens with metal hole array for terahertz wave band

    Optical devices for terahertz wave band from 0.1 to 10 THz are rapidly expanding and require better designs. This paper proposes and designs a parallel plate lens with metal hole array for the terahertz wave b...

    Takehito Suzuki, Hiroki Yonamine, Takuya Konno, John C. Young… in Applied Physics A (2014)

  10. No Access

    Article

    Analysis and design of concave lens with metallic slit array for terahertz wave band

    This paper presents a three-dimensional concave lens constructed from a metallic slit array. The effective refractive index is estimated to be ...

    Takehito Suzuki, Hiroki Yonamine, Takuya Konno, John C. Young… in Applied Physics A (2014)

  11. No Access

    Article

    A Japanese family with idiopathic basal ganglia calcification with novel SLC20A2 mutation presenting with late-onset hallucination and delusion

    Kensaku Kasuga, Takuya Konno, Kento Saito, Ayako Ishihara… in Journal of Neurology (2014)

  12. No Access

    Article

    Proposal and analysis of artificial dielectric lens with metallic corrugated structures for terahertz wave band

    Optical devices for the terahertz wave band are being developed now and require better designs. This paper proposes an artificial dielectric lens with metallic corrugated structures for the terahertz wave band...

    Takuya Konno, Takahiro Suzuki, John C. Young, Mikio Saigusa… in Applied Physics A (2012)

  13. No Access

    Article

    Twisted endoscopy and the generic packet conjecture

    We prove a twisted analogue of the result of Rodier and Moeglin-Waldspurger on the dimension of the space of degenerate Whittaker vectors. This allows us to prove that certain twisted endoscopy forGL(n) implies t...

    Takuya Konno in Israel Journal of Mathematics (2002)