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plasma
698 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
698 studies carry this tag.
Date range
1989 to 2026
Top journals
- Alzheimer's & dementia : the journal of the Alzheimer's Association 123
- Journal of Alzheimer's disease : JAD 53
- Alzheimer's & dementia (Amsterdam, Netherlands) 46
- Alzheimer's research & therapy 36
- 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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Dementia with Lewy bodies (DLB) is a common neurodegenerative dementia that remains difficult to distinguish clinically from Alzheimer's disease (AD) and related disorders because of overlapping clinical features and frequent mixed pathology.
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These findings support a model in which p-tau217 specifically tracks amyloid-driven pathological progression, while markers of neurodegeneration reflect broader age-related processes that are not associated with APOE genotype.
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Alzheimer's disease (AD) pathology accumulates years before overt cognitive impairment, yet its multidomain phenotype remains poorly defined.
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Plasma pTau217 best identified amyloid-PET positivity (AUC > 0.91).
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Blood-based biomarkers for Alzheimer disease and related dementias have been validated largely in populations of European ancestry.
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Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease primarily affecting motor neurons but also frequently involving cognitive impairment.
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The full cohort included 1044 participants, of whom 779 comprised the proteomics cohort.
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Plasma eMTBR-tau243 has been associated with tau pathology and cognitive decline.
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The blood-based biomarker (BBM) profiles associated with genetic susceptibility to Alzheimer’s disease (AD) in general older populations remain poorly understood.
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Among 2711 decedents (mean [SD] age, 73.4 [14.4] years; range, 23 to 111 years; 1340 [49.4%] female), 531 (19.6%) met both thresholds, 270 (10.0%) the amyloid threshold only, 207 (7.6%) the tau threshold only, and 1703 (62.8%) neither.
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Plasma p-tau217 is elevated in αSynSAA-positive individuals at equivalent AD pathology measured by amyloid PET or the CSF ratio, and this elevation is attenuated most by fibrillar tau.
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These findings support plasma biomarkers for disease identification and risk stratification while underscoring the need for population□specific approaches.
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16/100
In Phase 1 (n =176), inpatients with delirium showed higher concentrations of both NfL and GFAP than patients with dementia (β = 0.78; 95% CI [0.37, 1.20] and β = 0.39 [0.07, 0.73] respectively) or PPD groups (β = 1.17; [0.69, 1.66] and β = 0.83 [0.51, 1.24] respectively).
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Basal ganglia iron serves as a stage-dependent mediator linking pTau217 to hippocampal neurodegeneration, with prodromal AD potentially indicating a particularly vulnerable stage for iron-targeted interventions and iron profiling for patient stratification.
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Blood-based neurofilament light (NfL) is associated with all-cause mortality, but whether this reflects neuroaxonal injury or overlaps with cognitive and functional decline remains unclear.
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Higher pTau217 was associated with greater likelihood of developing dementia 11 years later.
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Distinct biomarker associations with cognitive and emotional functioning support further longitudinal evaluation of BBMs for risk characterization in Latino older adults and potential disease monitoring applications.
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Detection of the early phases of cognitive dysfunction is critical for identifying individuals at risk of neurodegeneration before irreversible damage occurs.
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70/100
Nine proteins (amyloid-beta 42 (Aβ42), beta-secretase 1 (BACE1), glial fibrillary acidic protein (GFAP), pTau181, pTau231, pTau217, t0tal tau (MAPT), neurofilament light (NfL) and acetylcholinesterase (AChE)) robustly differed between carriers and non-carriers cross-sectionally.
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Trial Parent study registrations: NCT01231971; NCT02854033.
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These findings support MRI-derived LC intensity as a marker of early AD-related processes and suggest that LC intensity may provide complementary information not captured by plasma pTau 217 alone.
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Current biobanking guidelines require in-person blood collection and immediate processing for Alzheimer’s disease (AD) biomarker assessment.
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Interventions targeting lifestyle and health behaviors support cognition in older adults at risk of dementia.
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Scalable and accessible biomarkers of neurofibrillary tangle pathology are needed for Alzheimer’s disease prognosis, diagnosis and monitoring.
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Dementia is a major global health challenge; however, current diagnostic approaches often rely on invasive or costly procedures.
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Baseline NfL and GFAP did not differ between patients with or without ARIA (ln[NfL] ECLIA 1.24 ± 0.38 pg/mL vs 1.25 ± 0.40 pg/mL, p = 0.77; ln[NfL] Simoa 2.87 ± 0.47 pg/mL vs 2.98 ± 0.40 pg/mL, p = 0.30, ln[GFAP] ECLIA 4.95 ± 0.36 pg/mL vs 4.88 ± 0.47 pg/mL, p = 0.69).
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Validated plasma phosphorylated tau 217 (p-tau217) assays identify Alzheimer disease pathology with high accuracy.
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Impaired peripheral clearance of amyloid-β (Aβ) contributes to Alzheimer's disease (AD) pathogenesis.
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The study included CSF-characterized individuals with AD (mild cognitive impairment due to AD and AD dementia) and cognitively healthy controls (n = 116; mean age 71.2 years).
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All markers tracked neuropathological severity, with BD p-tau217 having larger fold-changes than p-tau217 but BD p-tau217/Aβ42 enhancing this further.
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These data are compatible with, but do not establish, equivalence between plasma p-tau217 and CSF biomarkers.
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Frontotemporal lobar degeneration (FTLD) is a common cause of early-onset dementias marked by progressive declines in behavior, cognition, and/or movement.
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A prespecified structure–reserve–glial profile captured reproducible cognitive variation beyond measured Alzheimer disease molecular pathology across two cohorts.
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Electrochemical biosensors offer a promising route for the rapid, non-invasive detection of disease biomarkers by converting biochemical interactions into measurable electrical signals.
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Complement-mediated neuroinflammation has been implicated in Alzheimer’s disease (AD), but its role during the pre-symptomatic phase of the disease remains unclear.
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CSF Aβ42 rose from 526.0 to 1053.0 pg/mL (+ 100.2%), total tau (t-tau) fell from 578.2 to 278.0 pg/mL(-51.9%), and phosphorylated tau181 (p-tau181) fell from 90.8 to 23.1 pg/mL(-74.6%).
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Chimpanzees share a number of age-related brain changes with humans, such as reductions in neurons and increases in neuropathology.
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APOE3 Ch -associated resilience is measurably reflected in plasma biomarker trajectories, indicating attenuation of both neuroinflammatory and neurodegenerative processes.
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Concordance between p-tau217 and Aβ was high in the AD and MCI groups (observed agreement 90.0% in each), but overall agreement across Cohort II was modest (166/351, 47.3%; Cohen's κ = 0.117, 95% CI 0.029–0.204).
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Chronic Wasting Disease (CWD) is a fatal transmissible spongiform encephalopathy (TSE) that is confined to cervids (deer, moose, elk, and reindeer) but shares key properties with human neurodegenerative conditions such as Alzheimer’s, Parkinson’s, Huntington’s disease and frontal-temporal dementia.
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STRUCTURED ABSTRACT BACKGROUND Chronological age and plasma p⍰tau217 each predicts cognitive decline, but whether their prognostic associations interact is unclear.
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Social isolation was associated with elevated blood-based biomarkers of neuronal injury, with variation by patterns of exposure over time.
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Alzheimer’s disease pathology and cognitive outcomes frequently diverge, yet current single-axis definitions cannot identify resilient (high pathology, preserved cognition) and resistant (high risk, low pathology) subgroups reliably at scale, obscuring the mechanisms that uncouple pathological burden from cognitive decline.
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Plasma p-tau217 levels decreased significantly from 3 months, with the greatest decline between 3 and 6 months, followed by a plateau.
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Among 191 participants (57 Black, 46 Hispanic White, 88 non-Hispanic White), age-adjusted plasma p-tau217 and p-tau217/Aβ42 performed similarly in detecting amyloid-positive individuals (≥ 25 Centiloids), regardless of race/ethnicity.
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Among CAA participants, 29 met CSF criteria for AD co-pathology.
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Bidirectional stepwise linear regression analysis was performed to identify plasma biomarkers associated with brain Aβ deposition.
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16/100
In a contemporary, diverse cohort, most established dementia risk algorithms had limited power in discriminating amyloid positivity, pTau-217 positivity, and current cognitive status despite acceptable calibration.
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Amyloid regional extent and tau PET were associated with different features of dyadic CFI data: reporter balance and CFI burden across reporters, respectively.
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Our findings suggest that serum brain-derived p-tau 217 and SV2A are more specific diagnostic biomarkers for reflecting brain damage and may not be disturbed by peripheral damage for AD patients.
From across this tag
10 of the 698 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.
- 8-plex quantitation of changes in cerebrospinal fluid protein expression in subjects undergoing intravenous immunoglobulin treatment for Alzheimer's disease
- Early Diagnosis of Alzheimer's Disease with Blood Test; Tempting but Challenging
- Pre-Analytical Sampling and Storage Conditions of Amyloid-β Peptides in Venous and Capillary Blood
- Alzheimer's disease neuropathology and its estimation with fluid and imaging biomarkers
- Plasma glial fibrillary acidic protein is elevated in cognitively normal older adults at risk of Alzheimer's disease
- False positive plasma p-tau217 results associated with heterophilic antibody interference: A potential clinical pitfall
- Elevation of plasma phosphorylated tau181 during neurological illnesses affecting consciousness and kidney dysfunction
- Markers of neuroinflammation associated with Alzheimer's disease pathology in older adults
- Risk of Alzheimer's disease biological misdiagnosis linked to cerebrospinal collection tubes
- The cerebrospinal fluid amyloid beta42/40 ratio in the differentiation of Alzheimer's disease from non-Alzheimer's dementia