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Research

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

Find studies

Showing 51–75 of 88 studies published 1992 (page 3 of 4) · 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.

Deposition of beta/A4 immunoreactivity and neuronal pathology in transgenic mice expressing the carboxyl-terminal fragment of the Alzheimer amyloid precursor in the brain

✓ Peer-reviewed alzhub usefulness score 42 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1992-11-01

The deposition of amyloid in senile plaques and along the walls of the cerebral vasculature is a characteristic feature of Alzheimer disease. 4 key findings →

Evidence: low

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

Black and white dementia caregivers: a comparison of their adaptation, adjustment, and service utilization

✓ Peer-reviewed alzhub usefulness score 41 out of 100. The Gerontologist 1992-06-01

We compared black (n = 33) and white (n = 119) caregivers of dementia patients on indices of adaptation, adjustment, and utilization of supportive services. 3 key findings →

Participants: 33 Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Production of the Alzheimer amyloid beta protein by normal proteolytic processing

✓ Peer-reviewed alzhub usefulness score 41 out of 100. Science (New York, N.Y.) 1992-10-01

The 4-kilodalton (39 to 43 amino acids) amyloid beta protein (beta AP), which is deposited as amyloid in the brains of patients with Alzheimer's diseases, is derived from a large protein, the amyloid beta protein precursor (beta APP). 1 key finding →

Evidence: low

Full summary, score breakdown and related studies → Original source

Speech monitoring skills in Alzheimer's disease, Parkinson's disease, and normal aging

✓ Peer-reviewed alzhub usefulness score 40 out of 100. Brain and language 1992-01-01

We examined the abilities of 15 patients with dementia of the Alzheimer type (DAT), 22 patients with Parkinson's Disease (PD), and 141 healthy subjects (ranging in age from 30 to 79 years) to detect and correct their own speech errors. 1 key finding →

Participants: 15 Evidence: low

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

Quinolinic acid and kynurenine pathway metabolism in inflammatory and non-inflammatory neurological disease

✓ Peer-reviewed alzhub usefulness score 40 out of 100. Brain : a journal of neurology 1992-10-01

In contrast, no increases in CSF QUIN were found in chronic neurodegenerative disorders, depression or myoclonic seizure disorders, while CSF kynurenic acid concentrations were significantly lower in Huntington's disease and Alzheimer's disease. 2 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source

Disease-specific patterns of locus coeruleus cell loss

✓ Peer-reviewed alzhub usefulness score 40 out of 100. Annals of neurology 1992-11-01

Computer visualization techniques were used to map and to quantitatively reconstruct the entire locus coeruleus, including the nucleus subcoeruleus, to compare the topographic patterns of cell loss in postmortem brains from patients with Parkinson's disease, Alzheimer's disease, and Down syndrome. 3 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source

Reactive microglia/macrophages phagocytose amyloid precursor protein produced by neurons following neural damage

✓ Peer-reviewed alzhub usefulness score 39 out of 100. Journal of neuroscience research 1992-03-01

Kainic acid lesions of rat striatum caused an elevation of amyloid precursor protein (APP) immunoreactivity in neurons and neurites, some of which were then phagocytosed by reactive microglia/macrophages. 2 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

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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. Show only studies that are free to read

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