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Research

27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 1–25 of 26 studies published 1994 · free to read (page 1 of 2) · 27,380 in the whole library · How the 0–100 score works

Browse by subject, author or institution

Each number is how many studies that link shows, with your other filters kept.

Subjects

Authors

Names as each record prints them; the same person can appear under two spellings.

Institutions

From OpenAlex; 12,859 studies have no institution on record and are not counted here.

A note on reading research. One study is rarely the final word.

We try to note the size of a study, whether it was in humans or animals, and how early-stage the finding is. If a summary here doesn't make that clear, treat it with extra caution and check the original source.

Influence of education and occupation on the incidence of Alzheimer's disease

✓ Peer-reviewed alzhub usefulness score 69 out of 100. JAMA 1994-04-01

The data suggest that increased educational and occupational attainment may reduce the risk of incident AD, either by decreasing ease of clinical detection of AD or by imparting a reserve that delays the onset of clinical manifestations. 2 key findings →

Design: cross-sectional Participants: 593 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Beta amyloid protein deposition in the brain after severe head injury: implications for the pathogenesis of Alzheimer's disease

✓ Peer-reviewed alzhub usefulness score 53 out of 100. Journal of neurology, neurosurgery, and psychiatry 1994-04-01

In a recent preliminary study it was reported that a severe head injury resulted in the deposition of beta amyloid protein (beta AP) in the cortical ribbon of 30% of patients who survived for less than two weeks. 4 key findings →

Participants: 152 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Clinical and neuropathological criteria for frontotemporal dementia. The Lund and Manchester Groups.

✓ Peer-reviewed alzhub usefulness score 53 out of 100. Journal of Neurology Neurosurgery & Psychiatry 1994-04-01

Clinical and neuropathological criteria forfrontotemporal dementia * Early loss of insight into the fact that the altered condition is due to a pathological change of own mental state. 1 key finding →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

The Cognitive Abilities Screening Instrument (CASI): A Practical Test for Cross-Cultural Epidemiological Studies of Dementia

✓ Peer-reviewed alzhub usefulness score 51 out of 100. International Psychogeriatrics 1994-03-01

The Cognitive Abilities Screening Instrument (CASI) has a score range of 0 to 100 and provides quantitative assessment on attention, concentration, orientation, short-term memory, long-term memory, language abilities, visual construction, list-generating fluency, abstraction, and judgment.

Full summary, score breakdown and related studies → Original source Free full text

Isoform-specific interactions of apolipoprotein E with microtubule-associated protein tau: implications for Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 49 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1994-11-01

The apolipoprotein E (apoE) type 4 allele (APOE4) is a susceptibility gene for late-onset familial and sporadic Alzheimer disease. 5 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Relative abundance of Alzheimer A beta amyloid peptide variants in Alzheimer disease and normal aging

✓ Peer-reviewed alzhub usefulness score 49 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1994-08-01

The Alzheimer A beta amyloid peptide (A beta) is the principal proteinaceous component of amyloid associated with Alzheimer disease (AD). 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Canadian study of health and aging: study methods and prevalence of dementia

✓ Peer-reviewed alzhub usefulness score 48 out of 100. CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 1994-03-01

These Canadian estimates of the prevalence of dementia fall toward the upper end of the ranges in other studies, whereas the estimates for Alzheimer's disease fall in the middle of the ranges. 2 key findings →

Participants: 9,008 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Excessive production of amyloid beta-protein by peripheral cells of symptomatic and presymptomatic patients carrying the Swedish familial Alzheimer disease mutation

✓ Peer-reviewed alzhub usefulness score 48 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1994-12-01

The 39- to 43-amino acid amyloid beta-protein (A beta), which is progressively deposited in cerebral plaques and blood vessels in Alzheimer disease (AD), is secreted by cultured human cells during normal metabolism. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Morphologic and biochemical analysis of the intracellular trafficking of the Alzheimer beta/A4 amyloid precursor protein

✓ Peer-reviewed alzhub usefulness score 46 out of 100. The Journal of neuroscience : the official journal of the Society for Neuroscience 1994-05-01

Abnormal metabolic processing of the beta/A4 amyloid precursor protein (APP) has been implicated in the pathogenesis of Alzheimer disease. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Neuropathology and apolipoprotein E profile of aged chimpanzees: implications for Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1994-09-01

Neuropathological findings in three aged chimpanzees were compared with those in rhesus monkeys and individuals with Alzheimer disease. 3 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

An evaluation of the predictive validity and inter-rater reliability of clinical diagnostic criteria for senile dementia of Lewy body type

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Neurology 1994-05-01

Several recent autopsy studies suggest that senile dementia of Lewy body type (SDLT) may be the second most common neuropathologic cause of dementia in the elderly, accounting for 7 to 30% of all cases. 1 key finding →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Cell cycle-dependent regulation of the phosphorylation and metabolism of the Alzheimer amyloid precursor protein

✓ Peer-reviewed alzhub usefulness score 43 out of 100. The EMBO journal 1994-03-01

Accumulation of the amyloid A beta peptide, which is derived from a larger precursor protein (APP), and the formation of plaques, are major events believed to be involved in the etiology of Alzheimer's disease. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Chemical characterization of A beta 17-42 peptide, a component of diffuse amyloid deposits of Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 43 out of 100. The Journal of biological chemistry 1994-04-01

A peptide corresponding to the amino acid sequence of A beta 17-42 (LVFFAEDVGSNKGAIIGLMVGGVVIA) was isolated from Alzheimer Disease patient brains containing large deposits of diffuse-type amyloid. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Secreted beta-amyloid precursor protein stimulates mitogen-activated protein kinase and enhances tau phosphorylation

✓ Peer-reviewed alzhub usefulness score 42 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1994-07-01

Biological effects related to cell growth, as well as a role in the pathogenesis of Alzheimer disease, have been ascribed to the beta-amyloid precursor protein (beta-APP). 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

[Neuropsychological tests of simple application for diagnosing dementia]

✓ Peer-reviewed alzhub usefulness score 39 out of 100. Arquivos de neuro-psiquiatria 1994-12-01

Thirty patients with dementia defined by DSM-III-R criteria (Alzheimer's disease (22), vascular dementia (3), Parkinson's disease, frontal lobe dementia, possible diffuse Lewy body dementia, normal pressure hydrocephalus and uncertain diagnosis), with scores below 24 points in the Mini-Mental Status Examination and more than 4 years of education were submitted to a neuropsychological evaluation. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

High expression on Kunitz-type protease inhibitor-containing substances in the cerebral vessels of patients with Down syndrome

✓ Peer-reviewed alzhub usefulness score 28 out of 100. The Tohoku journal of experimental medicine 1994-11-01

Down syndrome (DS) brains, from 19 gestational weeks to 50 years of age were studied by immunohistochemical methods with a polyclonal antibody against synthetic peptide comprising part of the Kunitz-type protease inhibitor (KPI) domain of Alzheimer disease amyloid precursor protein (APP), residues 301 to 323 of APP 770. 1 key finding →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

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Where “Free full text” comes from

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.

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
  • Times cited up to 7 pts
  • Citations per year up to 5 pts
  • Impact for its field and year up to 6 pts
  • Cited by studies here up to 6 pts
  • Still being cited up to 4 pts
  • Senior author's track record up to 4 pts
  • Institution's track record up to 3 pts
  • Multi-centre collaboration up to 3 pts
  • Indexed in PubMed up to 2 pts
  • Free to read up to 2 pts

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 27,380 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.

What this library is — and isn't

This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,380 records, built mostly from automated pulls of Europe PMC (60.6% of the library) and OpenAlex (18.6%), 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.

1,032 records (3.8% of the library) are not peer-reviewed — 962 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