Our results are consistent with the supposition that both Aβ and tau are necessary for memory decline in the preclinical stages of AD. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
31,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Our results are consistent with the supposition that both Aβ and tau are necessary for memory decline in the preclinical stages of AD. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Our study identified a synergistic effect of amyloid and tau deposits and demonstrated, for the first time, in normal elderly its link to AD-like hypometabolism and to AD-like memory decline. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Sleep disturbances are associated with future risk of Alzheimer disease. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Almost half the cells and 1% of the unique genes found in our bodies are human, the rest are from microbes, predominantly bacteria, archaea, fungi, and viruses. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
We hypothesized that one mechanism underlying the association between obstructive sleep apnea (OSA) and Alzheimer's disease is OSA leading to decreased slow wave activity (SWA), increased synaptic activity, decreased glymphatic clearance, and increased amyloid-β. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Determining the relative contributions of environment and heredity to the cause of Parkinson's disease (PD) is more than an academic issue because its resolution dictates future research directions to an enormous degree. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Neurodegenerative diseases are often classified based on the abnormal accumulation of synuclein or tau. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
A small, orally available natural product penetrates into the brain in vivo to rescue the memory impairment produced by soluble Abeta oligomers through a mechanism that restores hippocampal synaptic plasticity. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
We report the first case of neuropathologically verified parkinsonism-dementia complex of the Kii peninsula, together with the patient's brother, who had amyotrophic lateral sclerosis. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
A family is described with familial myoclonic epilepsy associated with mitochondrial myopathy. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
The cornu ammonis 1 region of the hippocampus (CA1) sector of hippocampus is vulnerable to both Alzheimer's disease (AD)-type neurofibrillary degeneration and anoxia-ischemia. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Twelve patients with refractory temporal lobe epilepsy and unilateral hippocampal sclerosis had repeat volumetric magnetic resonance imaging scans after a mean of 3.4 years to determine whether progressive hippocampal volume loss occurred. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
One hundred patients with intractable temporal lobe epilepsy and 22 control subjects were scanned on a 1.5-T Siemens SP63 Magnetom scanner. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
One hundred fifty autopsy brains from patients with clinically diagnosed Alzheimer's disease (AD) were examined pathologically. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
We reanalyzed and compared current prevalence estimates of Alzheimer's disease in Europe. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
In this clinical study the cerebrospinal fluid (CSF) level of a novel form of the beta-amyloid peptide (A beta) extending to position 42 (A beta 42) was determined in patients with Alzheimer's disease (AD) as well as controls. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Quinolinic acid is an "excitotoxic" metabolite and an agonist of N-methyl-D-aspartate receptors. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Genomic triplication of the alpha-synuclein gene recently has been associated with familial Parkinson's disease in the Spellman-Muenter kindred. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Functional magnetic resonance imaging (fMRI) was used to study memory-associated activation of medial temporal lobe (MTL) regions in 32 nondemented elderly individuals with mild cognitive impairment (MCI). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Optic nerve and retinal ganglion cell (GC) degeneration are possible explanations for the poor visual function reported in patients with Alzheimer's disease (AD). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
In patients with Alzheimer's disease (AD), compared with age-matched and young healthy control subjects, visual deficits in the following functions were observed: color, stereoacuity, contrast sensitivity, and backward masking (homogeneous and pattern). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Overproduction of interleukin-1 within the brain is associated with Alzheimer's disease and other neurological conditions. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Human immunodeficiency virus type 1 (HIV-1) proteins Tat and gp120 have been implicated in the pathogenesis of dementia associated with HIV infection. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Epidemiological studies have suggested an etiologic relationship between pesticide exposure and Parkinson's disease (PD). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The suprachiasmatic nucleus (SCN) of the hypothalamus, the master mammalian circadian pacemaker, synchronizes endogenous rhythms with the external day-night cycle. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Free full text links and the Full text may need a subscription label come from Unpaywall, Europe PMC and OpenAlex records of free copies, checked 10 Oct 2026. A study with neither is unknown, not paywalled. Show only studies that are free to read
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.
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 that, and the rigour is already counted by the design and journal components.
The score is computed from the published data alone and is reproducible: the same file always yields the same numbers.
See the whole rubric drawn out → — four charts covering all 31,380 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.
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 31,380 records, built mostly from automated pulls of Europe PMC (65.6% of the library) and OpenAlex (16.2%), plus smaller pulls from PubMed, Crossref and medRxiv. If a study, a drug, or a finding isn't here, that is not evidence it doesn't exist in the literature — it may simply not have been pulled in yet.
1,048 records (3.3% of the library) are not peer-reviewed — 973 of those are preprints posted before any journal review, and the rest are conference abstracts, regulatory notices and reports. Every study card on this page states its status plainly, and the score above is capped for anything that isn't a peer-reviewed article.
See the full, machine-readable breakdown of this library's coverage →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events