CSF sAPP α and sAPPβ levels in Alzheimer’s Disease and Multiple Other Neurodegenerative Diseases: A Network Meta-Analysis

AbstractThe soluble amyloid protein procurer α (sAPPα) and β (sAPPβ) have been postulated as promising new cerebrospinal fluid (CSF) biomarkers for Alzheimer’s disease (AD) and multiple other neurodegenerative diseases, but have failed to meet expectations with their often discordant and even contradictory findings to date. The aim of th e study was to systematically explore this issue. Cochrane Library, PubMed, and CNKI were systematically searched without language or date restrictions. This network meta-analysis followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and also adhered to the Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines. Twenty studies, comprising ten groups, were eligible and included. Overall, 19 eligible studies with 1634 patients contributed to the analysis of CSF sAPPα levels and 16 eligible studies with 1684 patients contributed to the analysis of CSF sAPPβ levels. CSF sAPPβ levels are significantly higher in AD than in corticobasal syndrome (CBS) and progressive supranuclear palsy (PSP); higher in Control than in Depression, CBS and PSP; higher in Parkinson’s disease dementia (PDD) than in CBS and PSP; higher in mild cog nitive impairment progressed to AD dementia during the follow-up period (pMCI) than in Depression and PSP; higher in stable mild cognitive impairment (sMCI) than in Depression. With regard to CSF sAPPα levels...
Source: NeuroMolecular Medicine - Category: Neurology Source Type: research

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Progressive supranuclear palsy is a taupathy disorder often mistaken on diagnosis by other neurocognitive disorders such as Parkinson's (PD) and Alzheimer's (AD) disease amongst other. PSP tends to be diagnosed in the later course of the disease and by time of diagnosis, individuals have a median survival of 7?years. PSP is a disease in which a diagnosis and treatment is done in a multidisiplinary approach involving collaboration of Psychiatry and Neurology. As it was seen in this clinical case which describes a patient with undetected progressive supranuclear palsy who were referred to a university hospital psychiatric em...
Source: The American Journal of Geriatric Psychiatry - Category: Geriatrics Authors: Tags: Poster Number: EI-36 Source Type: research
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Authors: Berardelli I, Belvisi D, Pasquini M, Fabbrini A, Petrini F, Fabbrini G Abstract Introduction: reviewed studies that assessed the treatment of psychiatric disturbances in Parkinson's disease and atypical parkinsonisms. Neuropsychiatric disturbances in these conditions are frequent and have a profound impact on quality of life of patients and of their caregivers. It is therefore important to be familiar with the appropriate pharmacological and non-pharmacological interventions for treating these disorders. Areas covered: The authors searched for papers in English in Pubmed using the following keywords: Parkinso...
Source: Expert Review of Neurotherapeutics - Category: Neurology Tags: Expert Rev Neurother Source Type: research
This study aimed to investigate white matter microstructure alterations by using connectometry in patients with PD-EDS, in comparison to PD-nEDS and healthy individuals. Materials and Methods Participants Participants involved in this research were recruited from Parkinson's Progression Markers Initiative (PPMI, http://www.ppmi-info.org/). The study was approved by the institutional review board of all participating sites in Europe, including Attikon University Hospital (Greece), Hospital Clinic de Barcelona and Hospital Universitario Donostia (Spain), Innsbruck University (Austria), Paracelsus-Elena Clinic Kass...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusions Dysautonomic symptoms frequently occuring in α-synucleinopathies comprise cardiovascular, gastrointestinal, urogenital and thermoregulatory disturbances. These symptoms reduce quality of life and worsen prognosis. The understanding of their pathophysiology, as well as the detection of α-synuclein deposition and autonomic dysfunction in the premotor stages of α-synucleinopathies may be key for identifying novel treatment targets and improving clinical outcomes. While causative treatment is not yet available, improvement of quality of life can be achieved by personalized symptomatic treatment r...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
This study underscores the importance of chronic stimulation in the modulation of sensorimotor integration and proprioception. The authors considered two possible mechanisms underlying SAI modulation by STN DBS. High-frequency DBS of the STN might normalize synchronization between basal ganglia structures, which might restore the ability of thalamocortical relay cells to respond to depolarizing inputs involved in sensorimotor integration (Brown et al., 2001; Rubin and Terman, 2004). Alternatively, STN DBS might have a direct effect on cortical structures through antidromic stimulation of the cortico-subthalamic pathway. I...
Source: Frontiers in Human Neuroscience - Category: Neuroscience Source Type: research
Argyrophilic grain disease (AGD) is a common four‐repeat tauopathy in elderly people. While dementia is a major clinical picture of AGD, recent studies support the possibility that AGD may be a pathological base in some patients with mild cognitive impairment, late‐onset psychosis, bipolar disorder and depression. AGD often coexists with various other degenerative changes. The frequency of AGD in progressive supranuclear palsy (PSP) cases was reported to range from 18.8% to 80%. The frequency of AGD in corticobasal degeneration (CBD) cases tends to be higher than that in PSP cases, ranging from 41.2% to 100%. Conversel...
Source: Neuropathology - Category: Neurology Authors: Tags: Symposium: Comorbid pathologies of neurodegenerative diseases Source Type: research
__________ Neuroscience used to be the monopoly of a few elite universities located in a handful of countries. Neuropsychology used to be a quaint niche discipline relatively unconnected to the larger world of neuroscience and content in its methods with paper-and-pencil tests. Neuroscience itself was relatively unconcerned with higher-order cognition, and the very term “cognitive neuroscience” was often met with rolled eyes by scientists working in more established areas of brain research (a personal observation made in the 1980s and even 1990s on more than one occasion). And the ...
Source: SharpBrains - Category: Neuroscience Authors: Tags: Cognitive Neuroscience Health & Wellness Professional Development Alexander-Luria clinical psychologists cognition cognitive-psychologists disease Executive-Functions frontal-lobe medical neurologists neuropsychologists Neuropsyc Source Type: blogs
Discussion The FCSRT is a reliable tool for diagnosing typical AD among various neurodegenerative diseases. At an individual level, however, its specificity is not absolute. Our findings also widen the spectrum of atypical AD to multiple neurodegenerative conditions.
Source: Alzheimer's and Dementia: The Journal of the Alzheimer's Association - Category: Geriatrics Source Type: research
DISCUSSION: The FCSRT is a reliable tool for diagnosing typical AD among various neurodegenerative diseases. At an individual level, however, its specificity is not absolute. Our findings also widen the spectrum of atypical AD to multiple neurodegenerative conditions. PMID: 28222300 [PubMed - as supplied by publisher]
Source: The Journal of Alzheimers Association - Category: Psychiatry Tags: Alzheimers Dement Source Type: research
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