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plasma
712 studies tagged plasma, dated 1989-01-01 to 2026-11-01. Bibliography: BibTeX (.bib) · RIS (.ris)
Newest in this topic
- Inflammatory biomarker candidates in dementia with Lewy bodies: diagnostic classification, clinical associations, and survival 2026-11-01
- Longitudinal plasma biomarkers and multimodal PET across APOE ε4 genotypes: a prospective cohort study 2026-11-01
- Concurrent cognitive, behavioral and systemic physiological features mark preclinical Alzheimer's disease 2026-10-30
Studies
712 studies carry this tag.
Date range
1989 to 2026
Top journals
- Alzheimer's & dementia : the journal of the Alzheimer's Association 124
- Journal of Alzheimer's disease : JAD 54
- Alzheimer's & dementia (Amsterdam, Netherlands) 47
- Alzheimer's research & therapy 37
- medRxiv 29
196 journals in all.
Newest first, then by address. Each study has a usefulness score out of 100 (rubric version 4.0); tap a score to see what makes it up. Tags were assigned automatically from each study's title and summary. The same studies as a filter in the library.
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Among all participants, high p-tau217 alone [p-tau217(+)NfL(-)GFAP(-)] was associated with a steeper decline in episodic/semantic memory and processing speed compared to the all-low group (p ≤ 0.02).
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Plasma biomarkers were associated with comorbidities and metabolites such as estimated glomerular filtration rate, homocysteine, and high-density lipoprotein.
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In 14 of the 15 suspected HAb cases, HBT treatment greatly reduced measured p-tau217 concentrations. and in one of three specimens selected for further investigation, reduced Aβ42 concentrations PEG precipitation in the three selected samples also reduced p-tau217 concentrations, while serial dilution yielded mixed effects.
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Worse overall and local LC-EC integrity, indicated by lower fractional anisotropy (FA) and higher mean diffusivity (MD), was related to elevated concentrations of plasma phosphorylated tau 181 (p-tau181), p-tau217, and glial fibrillary acidic protein (GFAP).
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Plasma pTau-181 demonstrates flat or declining longitudinal trajectories and minimal cognitive correlation, suggesting tau is a static biomarker rather than a dynamic therapeutic target in mid-to-late adulthood.
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Four subtypes were identified: limbic, medial temporal lobe (MTL) sparing, posterior, and lateral temporal (l temporal).
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Participants rated the materials highly regarding value and comprehension.
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Behavioral variant frontotemporal dementia (bvFTD) and primary psychiatric disorders (PPD) have symptomatic overlap that leads to diagnostic challenges.
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With advances in antiretroviral treatment, the population of older people living with HIV (PLWH) is increasing rapidly, leading to a rise in cognitive impairment related to both HIV and aging.
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The U.S. Food and Drug Administration (FDA) recently approved a blood-based biomarker to confirm diagnosis of Alzheimer's disease (AD-BBMs).
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The cohorts had low pre-test probability (%Aβ positivity = 14.9-24.7) and were predominantly cognitively normal (> 73%).
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Genetic contributions accounted for 42% (males) and 41% (females) of variance in p-tau217.
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Higher GAP-43 was cross-sectionally related to all AD biomarkers (p-values < 0.0001) and predicted longitudinal reductions in Aβ42 (p < 0.0001).
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The Core 1 biomarker PGSs predicted AD pathology and associated cognitive performance better than the AD PGSs in both populations.
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Alpha-synuclein (α-syn) deposits are common in around half of the Alzheimer's disease (AD) cases.
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Systemic factors confound blood tests for the diagnosis of Alzheimer's disease (AD).
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BackgroundEarly diagnosis of early-onset dementia (EOD) is often challenging.
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Significant differences in AD biomarkers were observed among different groups.
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The advent of disease-modifying treatments and risk-reduction strategies in the clinic have increased the demand for biomarkers for early disease detection, prediction of clinical course of disease, individual risk prediction and monitoring of treatment effects.
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The maximum mean wait time under the current workflow was projected at 6.4 months, decreasing with BBM integration.
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Higher baseline WMH volume and higher GFAP were associated with a greater likelihood of diagnostic progression.
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In single predictor models, p-tau231 (AUC = 0.87, p = 0.005) and GFAP (AUC = 0.87, p = 0.01) were associated with amyloid positivity, and p-tau231 remained significant in all multi-predictor models (p-values < 0.02).
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All assessed BBM levels varied by over 10% by collection tube type.
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Using a panel of biomarkers was significantly better at predicting disease stage compared with p-tau217 alone; however, the difference was dependent upon p-tau217 assay.
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BackgroundDiabetes has been linked to increased prevalence of dementia, but the link between diabetic retinopathy (DR) and Alzheimer's disease (AD) remains unclear.
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Alzheimer's disease involves a drastic departure from the cognitive, functional, and behavioural trajectory of normal ageing, and is both a dreaded and highly prevalent cause of disability to individuals, and a leading source of health and social care expenditure for society.
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As plasma biomarkers like p-tau217 move towards clinical use in Alzheimer's disease (AD), it is important to understand how kidney function may influence their accuracy.
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Higher baseline pTau217 levels were associated with faster functional (QDRS) and cognitive (PACC3) decline.
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50/100
There has been a rapid growth in research on peripheral fluid biomarkers for Alzheimer's disease (AD) and AD-related dementias, because they are non-invasive, relatively inexpensive and easily accessible.
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The study included 381 MCSA and 584 BioFINDER-2 participants.
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Individuals with Down syndrome (DS) develop a genetic form of Alzheimer’s disease (AD) due to an extra copy of chromosome 21, which contains the APP gene.
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After the median time of incident TBI, Aβ42/Aβ40 levels remained lower for 9.3 years, and pTau181, NfL, and GFAP remained elevated for 8.5, >13.8, and 12.7 years, respectively.
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Plasma amyloid-β(Aβ)42/40 ratio, glial fibrillary acidic protein (GFAP), neurofilament light (NfL), and phosphorylated tau181(p-tau181) are promising biomarkers for Alzheimer's disease (AD)-related pathology.
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A blood biomarker-based staging system for Alzheimer's disease (AD) could improve the diagnosis, prognosis and identification of individuals most likely to benefit from specific therapies.
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Among 6437 participants screened, with non-Hispanic (NH) White as the reference group, odds ratios of plasma ineligibility were 2.88 (95% confidence interval [CI]: 1.40-6.96) for Hispanic Black, 1.60 (95% CI: 1.33-1.92) for Hispanic White, 2.10 (95% CI: 1.37-3.38) for NH Asian, and 1.59 (95% CI: 1.27-2.0) for NH Black participants.
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When benchmarked against amyloid PET, plasma biomarker-based stratification achieves an optimal balance between diagnostic accuracy and cost-effectiveness.
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43/100
Firstly, we found that plasma levels of NfL (p < 0.001) and p-tau181 (p < 0.001) were significantly higher in ALS than in HC.
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At baseline, higher AgeAccelPheno was associated with lower amyloid-β42 to amyloid-β40 (Aβ42:Aβ40) ratio, and higher AgeAccelGrim2 was associated with elevated neurofilament light (NfL).
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Plasma neurofilament light (NfL) protein is a promising non-invasive biomarker for detecting neuronal damage in Alzheimer's disease (AD).
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Epigenetic clocks can predict pathological aging associated with Alzheimer's disease (AD) risk, albeit findings are mixed regarding if clocks are predictive in blood and in non-European populations.
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In CU individuals from the development cohort, the combination of p-tau217 and Aβ42/40 significantly improved diagnostic accuracy (AUC: ALZpath 0.937 vs. 0.905, MSD 0.901 vs. 0.861; p < 0.05, DeLong test; 95% CIs) and model fit (AIC /BIC, p < 0.001) compared to p-tau217 alone.
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Twenty-nine percent of the cohort had Montreal Cognitive Assessment (MoCA) scores indicative of cognitive impairment or dementia after adjusting for age, sex, and education based on National Alzheimer's Coordinating Center normative data.
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Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder and represents a major public health challenge.
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The optimal cut-offs differed between CU and CI groups.
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57/100
Recent studies have demonstrated the high analytical and diagnostic performance of plasma p-tau217 using well-defined cohorts.
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We found that plasma p-tau217 was more associated with cognitive performance than p-tau181 and p-tau231 and that this relationship was particularly strong for memory scores (TRIAD: βp-tau217 = -0.53, βp-tau181 = -0.35 and βp-tau231 = -0.24; BioFINDER-2: βp-tau217 = -0.52, βp-tau181 = -0.24 and βp-tau231 = -0.29).
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Canine cognitive dysfunction syndrome (CDS) is a progressive neurodegenerative disorder in aging dogs and serves as a natural model for Alzheimer's disease in humans.
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Phosphorylated tau (p-tau) 217 is a promising blood biomarker for Alzheimer's disease (AD).
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Both Mann-Whitney tests and ANCOVA found significant differences between groups racialized as AA or NWH with respect to global 11[C]-Pittsburgh Compound B (PiB) standardized uptake value ratio (SUVR), cortical thickness values, p-tau181, and p-tau231 values (p < 0.05).
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E280A carriers had higher p-tau231 levels than non-carriers (9.0 ± 7.4 vs. 5.2 ± 3.4 pg/mL, P < 0.001).
From across this tag
10 of the 710 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 10. The same 10 appear here every time.
- Alzheimer's disease biomarkers and their current use in clinical research and practice
- Amyloid blood biomarker detects Alzheimer's disease
- Amyloid and Tau Cerebrospinal Fluid Biomarker Normalization in a Patient with Alzheimer’s Disease treated with Lecanemab: A Case Report
- Ultrasensitive and highly selective detection of Alzheimer's disease biomarker using two-photon Rayleigh scattering properties of gold nanoparticle
- Cerebrospinal fluid markers detect Alzheimer's disease in nonamnestic dementia
- Multi-platform proteomic analysis of Alzheimer's disease cerebrospinal fluid and plasma reveals network biomarkers associated with proteostasis and the matrisome
- Evaluation of a previously suggested plasma biomarker panel to identify Alzheimer's disease
- Inflammatory biomarker candidates in dementia with Lewy bodies: diagnostic classification, clinical associations, and survival
- Fluid Biomarkers of Frontotemporal Lobar Degeneration
- [Blood Biomarkers for Alzheimer's Disease: Current Status and Prospects]