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Träfflista för sökning "WFRF:(Yamamori Hidenaga) "

Sökning: WFRF:(Yamamori Hidenaga)

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1.
  • Sonderby, Ida E., et al. (författare)
  • Dose response of the 16p11.2 distal copy number variant on intracranial volume and basal ganglia
  • 2020
  • Ingår i: Molecular Psychiatry. - : Nature Publishing Group. - 1359-4184 .- 1476-5578. ; 25:3, s. 584-602
  • Tidskriftsartikel (refereegranskat)abstract
    • Carriers of large recurrent copy number variants (CNVs) have a higher risk of developing neurodevelopmental disorders. The 16p11.2 distal CNV predisposes carriers to e.g., autism spectrum disorder and schizophrenia. We compared subcortical brain volumes of 12 16p11.2 distal deletion and 12 duplication carriers to 6882 non-carriers from the large-scale brain Magnetic Resonance Imaging collaboration, ENIGMA-CNV. After stringent CNV calling procedures, and standardized FreeSurfer image analysis, we found negative dose-response associations with copy number on intracranial volume and on regional caudate, pallidum and putamen volumes (β = −0.71 to −1.37; P < 0.0005). In an independent sample, consistent results were obtained, with significant effects in the pallidum (β = −0.95, P = 0.0042). The two data sets combined showed significant negative dose-response for the accumbens, caudate, pallidum, putamen and ICV (P = 0.0032, 8.9 × 10−6, 1.7 × 10−9, 3.5 × 10−12 and 1.0 × 10−4, respectively). Full scale IQ was lower in both deletion and duplication carriers compared to non-carriers. This is the first brain MRI study of the impact of the 16p11.2 distal CNV, and we demonstrate a specific effect on subcortical brain structures, suggesting a neuropathological pattern underlying the neurodevelopmental syndromes.
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2.
  • Yamamori, Hidenaga, et al. (författare)
  • Tau in cerebrospinal fluid: a sensitive sandwich enzyme-linked immunosorbent assay using tyramide signal amplification.
  • 2007
  • Ingår i: Neuroscience letters. - : Elsevier BV. - 0304-3940. ; 418:2, s. 186-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Tau in cerebrospinal fluid (CSF) has been proposed as a diagnostic marker for Alzheimer's disease (AD). This paper presents a new sensitive sandwich ELISA allowing quantitation of tau from 8 microl CSF/well. A human specific monoclonal tau antibody HT7 was used as a capture antibody and a mixture of polyclonal tau antibodies, 92e and R134d was used as reporter antibodies. Tyramide signal amplification (TSA) technology was used in the last step to increase the sensitivity. With this TSA-ELISA, the lowest detection limit for tau was 14.3 pg/ml. Tau levels in CSF were found to be increased in AD patients (807+/-304 pg/ml, p<0.001) compared with controls (252+/-94 pg/ml). Thirty-five of 38 AD cases (92% sensitivity) yielded signals greater than cutoff, while only 1 of 38 control cases (97% specificity) was greater. A highly significant correlation was found between this assay and a commonly used kit, INNOTEST hTAU Antigen.
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