Tau expression and tau phosphorylation were examined in muscle biopsies of sporadic inclusion body myositis (sIBM), myotilinopathies and desminopathies compared with controls. A panel of anti-tau antibodies including 3Rtau, 4Rtau, phospho-specific tau Thr181, Ser262, Ser396, Ser422 and antibody AT8 (recognizing phosphorylation sites Ser202 and Thr205) and Alzh50 (conformation-dependent) showed ...

The diagnosis of idiopathic normal pressure hydrocephalus (iNPH) is sometimes complicated by concomitant Alzheimer's disease (AD) pathology. The purpose of the present study is to identify an iNPH-specific cerebrospinal fluid (CSF) biomarker dynamics and to assess its ability to differentiate iNPH from AD. Total tau (t-tau), tau phosphorylated at threonine 181 (p-tau), amyloid-β (Aβ) 42 and 40,...

OBJECTIVE We previously found a strong reduction in tau pathology and insoluble tau in P301S tau transgenic mice following intracerebroventricular infusion of the anti-tau antibody HJ8.5. We sought to determine the effects of HJ8.5 in the same model following peripheral administration. METHODS The primary objective was to determine if HJ8.5 administered at a dose of 50 mg kg(-1) week(-1) by i...

INTRODUCTION Idiopathic normal pressure hydrocephalus (iNPH) can be misdiagnosed with other neurodegenerative diseases, especially in the early disease stages. Considering the opportunity of the shunt surgery, iNPH should be diagnosed with accuracy. Here, we evaluate the utility of CSF biomarkers and their relationship with clinical features in the diagnosis of iNPH. METHODS We performed a mu...

BACKGROUND We aimed to investigate the influence of oligomeric forms of β-amyloid (Aβ) and the influence of the duration of exposure on the development of tau phosphorylation. METHODS Aβ oligomers were injected intracranially either acutely into 5-month-old rTg4510 mice and tissue was collected 3 days later, or chronically into 3-month-old mice and tissue was collected 2 months later. Several...

BACKGROUND AND PURPOSE Glycogen synthase kinase-3 (GSK-3) affects neuropathological events associated with Alzheimeŕs disease (AD) such as hyperphosphorylation of the protein, tau. GSK-3beta expression, enzyme activity and tau phosphorylated at AD-relevant epitopes are elevated in juvenile rodent brains. Here, we assess five GSK-3beta inhibitors and lithium in lowering phosphorylated tau (p-tau...

From a clinical standpoint, Alzheimer’s disease (AD) and frontotemporal lobar degeneration (FTLD) may be distinguished by a combination of clinical criteria and neuroimaging. However, in younger patients with mild cognitive deficits, it is sometimes difficult to classify patients based only on clinical findings, probably due to overlap of cognitive deficits with prominent executive and behavior...

Alzheimer's disease (AD) afflicts around 20 million people worldwide and so there is an urgent need for effective treatment. Our research showing that herpes simplex virus type 1 (HSV1) is a risk factor for AD for the brains of people who possess a specific genetic factor and that the virus causes accumulation of key AD proteins (β-amyloid (Aβ) and abnormally phosphorylated tau (P-tau)), sugges...

Neurodegenerative diseases are characterized by the presence of abnormal aggregates of proteins in brain tissue. Among them, the presence of aggregates of phosphorylated Tau protein (p-Tau) is the hallmark of Alzheimer's disease (AD) and other major neurodegenerative disorders such as corticobasal degeneration and frontotemporal dementia among others. Although Tau protein has previously been as...

Let $G/K$ be a simply connected compact irreducible symmetric space of real rank one. For each $K$-type $\tau$ we compare the notions $\tau$-representation equivalence with $\tau$-isospectrality. We exhibit infinitely many $K$-types so that, for arbitrary discrete subgroups $\Gamma$ and $\Gamma'$ $G$, if multiplicities $\lambda$ in spectra Laplace operators acting on sections induced $\tau$-vec...