In recent studies, patients diagnosed with Alzheimer's disease (AD) showed significantly elevated CSF levels of tau protein. 4 key findings →
Participants: 132
Evidence: low
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Older adults with MDD were more likely to endorse MBI. 4 key findings →
Evidence: low
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In Part 1 (currently ongoing), between February 6, 2024, and December 27, 2024, 322 adults were screened, of whom 75 (aged 59-89 years) met NIA-AA and IPA criteria. 5 key findings →
Design: clinical trial
Participants: 322
Evidence: low
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Immunocytochemical techniques was used to compare the proportion of neurons expressing various neurotransmitters (tyrosine hydroxylase, choline acetyltransferase and gamma-aminobutyric acid), neuropeptides (Leu-enkephalin and substance P) and neural cell adhesion molecules (NCAM) in the hippocampus, frontal (area 10) and occipital (area 17) cortices of neurologically normal elderly humans to that of age-matched Alzheimer disease (AD) patients. 3 key findings →
Evidence: low
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Neuropsychological assessments are essential to define the cognitive profile and contribute to the diagnosis of Alzheimer's disease (AD). 4 key findings →
Evidence: low
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32/100
✓ Peer-reviewed
alzhub usefulness score 32 out of 100.
·
Neurologia
·
2023-04-07
We performed a retrospective analysis of the patients assessed at our memory unit for whom Alzheimer disease (AD) cerebrospinal fluid biomarker results were available. 4 key findings →
Evidence: low
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BackgroundNeighborhood disadvantage has been associated with reduced cognitive reserve, increased risk for cognitive impairment, and greater Alzheimer's disease (AD) neuropathology, with particularly pronounced effects among Black and Hispanic/Latino older adults. 4 key findings →
Evidence: low
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In 2004, the first radiotracer that bound amyloid plaques was reported, which enabled visualization of the amount and regional distribution of amyloid plaques in the brains of living individuals via positron emission tomography (PET). 5 key findings →
Evidence: low
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31/100
✓ Peer-reviewed
alzhub usefulness score 31 out of 100.
·
Proteomics
·
2015-06-09
Transmissible encephalopathies (TSEs), such as Creutzfeldt-Jakob disease (CJD) and scrapie, are caused by infectious agents that provoke strain-specific patterns of disease. 2 key findings →
Evidence: low
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The existence of an effective biomarker for early detection of Alzheimer disease would facilitate improved diagnosis and stimulate therapeutic trials. 4 key findings →
Evidence: low
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31/100
✓ Peer-reviewed
alzhub usefulness score 31 out of 100.
·
Der Nervenarzt
·
2019-09-01
In accordance with the current German dementia guidelines, the dementia biomarkers amyloid beta 42, the tau peptides total tau and phosphorylated tau 181 are recommended for cerebrospinal fluid (CSF)-based diagnostics of dementia. 3 key findings →
Evidence: low
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Although diagnostic markers in cerebrospinal fluid (CSF) have become a rapidly growing research field, they have not as yet been investigated in relation to capacities that are of interest to geriatric psychiatry and neuropsychology, such as financial capacity. 4 key findings →
Evidence: low
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Women have twice the dementia risk compared with men. 1 key finding →
Evidence: low
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Eight proteins were differently expressed in carriers with larger WMH volumes (Figure 1). 5 key findings →
Evidence: low
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The present study was undertaken to validate the measurement of biomarkers as a supplement to the latest diagnostic criteria for Alzheimer disease (AD) dementia by National Institute on Aging-Alzheimer's Association (NIA-AA) work group using a sample attending a tertiary care center in Southern India. 4 key findings →
Participants: 12
Evidence: low
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Some studies have shown that CSF amyloid-beta 1-42 (Aβ₁₋₄₂), total tau (T-tau) and tau phosphorylated at threonine 181 (P-tau(181p)) proteins are useful diagnostic markers for distinguishing between clinically stable mild cognitive impairment (MCI) patients and those who will develop Alzheimeŕs disease (AD). 4 key findings →
Participants: 36
Evidence: moderate
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The early diagnosis of Alzheimer's disease (ADD) has gained new significance through the further discovery of blood biomarkers. 4 key findings →
Evidence: low
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Anemia and iron deficiency are common in older adults, yet their relevance to blood biomarkers for Alzheimer disease (AD) remains underappreciated. 5 key findings →
Evidence: low
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Alzheimer disease (AD) is a chronic neurodegenerative disorder and the most common cause of dementia in the elderly. 5 key findings →
Evidence: low
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Recent studies highlight the significance of plasma phosphorylated tau proteins, neurofilament light chain, and amyloid-beta ratios as reliable biomarkers. 4 key findings →
Evidence: low
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Η νευρωνική εκφύλιση και δυσλειτουργία αποτελούν χαρακτηριστικά γνωρίσματα των νευροεκφυλιστικών ασθενειών. Σημαντική πρόκληση είναι η ανάπτυξη αξιόπιστων διαγνωστικών εργαλείων που θα επιτρέπουν την έγκαιρη διάγνωση των νόσων αυτών. Πρώτος στόχος της παρούσας διδακτορικής διατριβής είναι ο ποσοτικός προσδιορισμός επιλεγμένων πρωτεϊνικών βιοδεικτών στο εγκεφαλονωτιαίο υγρό (ΕΝΥ) και στο αίμα, με σκοπό την υποστήριξη της διαφορικής διάγνωσης διαφόρων νευροεκφυλιστικών ασθενειών. Εφαρμόστηκαν μονοπλεκτικές δοκιμασίες για τον εντοπισμό του uPAR σε ασθενείς με σποραδική νόσο Creutzfeldt-Jakob, καθώς και των TAU, α-synuclein (α-syn), YKL-40 σε ασθενείς με συνουκλεϊνοπάθειες. Η έλλειψη ευαισθησίας και ειδικότητας των μονοπλεκτικών δοκιμασιών οδήγησε στην αξιοποίηση της πολυπλεκτικής πλατφόρμας SIMOA τεσσάρων βιοδεικτών (GFAP, NfL, TAU, UCH-L1), σε δύο διαφορετικές κλινικές κοόρτες. Στους ασθενείς με νόσο Alzheimer (AD) και μετωποκροταφική άνοια (FTD), ο βιοδείκτης με την καλύτερη διαγνωστική απόδοση ήταν ο UCH-L1 στο ΕΝΥ, με τιμές διαχωρισμού στα >1260 pg/mL για AD και >1052 pg/mL για FTD. Η NfL στο ΕΝΥ έδειξε καλή διαγνωστική ακρίβεια για τη διάκριση ασθενών με AD και FTD από υγιείς μάρτυρες, με τιμή διαχωρισμού >688,8 pg/mL και >463,9 pg/mL, αντίστοιχα. Η TAU στο ΕΝΥ εμφάνισε τη δεύτερη καλύτερη απόδοση μετά το UCH-L1 για τη διάκριση των AD από μάρτυρες, με τιμή διαχωρισμού >137,0 pg/mL, ενώ έδειξε καλή ακρίβεια και στη διάκριση των AD από τους FTD. Επίσης, καλή διαγνωστική ικανότητα παρατηρήθηκε στη διάκριση FTD από μάρτυρες με τιμή διαχωρισμού >111,3 pg/mL. Τέλος, η GFAP στο ΕΝΥ παρουσίασε μετρίου βαθμού ακρίβεια στη διάκριση AD από ομάδα μαρτύρων με τιμή διαχωρισμού >5942 pg/mL. Στη Σκλήρυνση κατά πλάκας (MS) και στο Kλινικά μεμονωμένο σύνδρομο (CIS), η NfL ορού και ΕΝΥ έδειξε μέτρια διαγνωστική ακρίβεια στη διάκριση των MS από τους μάρτυρες, με τιμές διαχωρισμού >5,909 pg/mL και >453,4 pg/mL, αντίστοιχα. Η GFAP ορού παρουσίασε μέτρια διακριτική ικανότητα με τιμή διαχωρισμού >48,08 pg/mL στους MS έναντι των υγιών. Ενώ τέλος η TAU ήταν ο βιοδείκτης με την καλύτερη απόδοση στη διάκριση MS / CIS από τους μάρτυρες, με τιμή διαχωρισμού στον ορό >0,5823 / >0,5950 pg/mL, αντίστοιχα, ενώ στο ΕΝΥ <76,47 / <75,26 pg/mL, αντίστοιχα. Δεύτερος στόχος της μελέτης, είναι η διερεύνηση του ρόλου των νευρωνικών εξωσωμάτων στην παθογένεση και εξάπλωση των νευροεκφυλιστικών ασθενειών (με έμφαση στη νόσο Prion). Για τον σκοπό αυτό αξιοποιήθηκε παθολογικό μοντέλο μυός RML, το οπ 2 key findings →
Evidence: low
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Biomarkers in cerebrospinal fluid (CSF) are being used increasingly to diagnose early Alzheimer's disease (AD). 4 key findings →
Evidence: low
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Tau protein and amyloid s (Abeta), two major components of neuropathology in Alzheimer disease (AD), have been applied for establishment of more useful biomarkers and therapeutic approaches. 4 key findings →
Evidence: low
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A Doença de Alzheimer (DA) é a principal causa de demência em idosos, causada pelo acúmulo de β-amiloide e emaranhados neurofibrilares no cérebro. 5 key findings →
Evidence: low
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16/100
⚠ Preprint — not yet peer-reviewed
alzhub usefulness score 16 out of 100.
·
medRxiv
·
2023-04-26
Recently-developed blood markers for Alzheimer’s (AD) detection have high accuracy but usually require ultra-sensitive analytic tools not commonly available in clinical laboratories. 4 key findings →
Participants: 136
Evidence: moderate
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How the 0–100 score works — and why some entries are capped
This is alzhub's own score. It is not an official metric, not an impact factor,
and no journal, publisher or ranking body endorses it. We built it so that a reader who is not a
scientist can tell a landmark trial from a conference abstract without having to already know the
difference. Every point comes from one of 20 components, all of them printed on the study itself,
so you can disagree with our arithmetic rather than having to trust the total.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
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- Citations per year up to 5 pts
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Journals are placed in ordered tiers, never given a numeric impact factor — we
could not verify current impact factors from a source we control, and an invented one would be
worse than none. Tier 1 is the top-tier general journals (NEJM, The Lancet, JAMA, Nature, Science,
Nature Medicine); tier 2 is the leading specialty journals; tier 3 is every other peer-reviewed
journal. A separate part scores how much the journal's own papers are cited, which tells the
tier-3 journals apart.
Two rules we don't bend. First, we never fill in a
missing value: if a record does not state a sample size or a design, that component scores
zero, and if we simply have no data for a part, such as a citation count, that part is left out and
the study is scored on the parts we could check. The study card says which. Second, anything that is not a peer-reviewed
article is capped at 16/100 and carries a warning chip — so a conference abstract or
a company press release can never outrank a peer-reviewed paper, no matter how good it looks.
We rank a rigorous null result — a good trial showing that something does not
work — above an early positive finding. Someone deciding whether to buy a supplement is served by
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The score is computed from the published data alone and is
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See the whole rubric drawn out →
— four charts covering all 30,980 studies: how the scores are spread and where the cap
bites, which of the 20 components the library is strong and weak on, which subjects rest on
stronger evidence, and what kinds of study each subject is actually built from.