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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 31 studies with an author at Harvard University (US) published 2013 (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.

Other 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.

Menopausal hormone therapy and health outcomes during the intervention and extended poststopping phases of the Women's Health Initiative randomized trials

✓ Peer-reviewed alzhub usefulness score 80 out of 100. JAMA 2013-10-01

During the CEE plus MPA intervention phase, the numbers of CHD cases were 196 for CEE plus MPA vs 159 for placebo (hazard ratio [HR], 1.18; 95% CI, 0.95-1.45) and 206 vs 155, respectively, for invasive breast cancer (HR, 1.24; 95% CI, 1.01-1.53). 3 key findings →

Participants: 8,506 Evidence: low

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

Variants in the ATP-binding cassette transporter (ABCA7), apolipoprotein E ϵ4,and the risk of late-onset Alzheimer disease in African Americans

✓ Peer-reviewed alzhub usefulness score 78 out of 100. JAMA 2013-04-01

Genome-wide significance in fully adjusted models (sex, age, APOE genotype, population stratification) was observed for a SNP in ABCA7 (rs115550680, allele = G; frequency, 0.09 cases and 0.06 controls; odds ratio [OR], 1.79 [95% CI, 1.47-2.12]; P = 2.2 × 10(-9)), which is in linkage disequilibrium with SNPs previously associated with Alzheimer disease in Europeans (0.8 Conclusions and relevance In this meta-analysis of data from African American participants, Alzheimer disease was significantly associated with variants in ABCA7 and with other genes that have been associated with Alzheimer disease in individuals of European ancestry. 4 key findings →

Design: meta-analysis Participants: 5,896 Evidence: high

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

Florbetapir (F18-AV-45) PET to assess amyloid burden in Alzheimer's disease dementia, mild cognitive impairment, and normal aging

✓ Peer-reviewed alzhub usefulness score 63 out of 100. Alzheimer's & dementia : the journal of the Alzheimer's Association 2013-01-30

The data are consistent with expected rates of amyloid positivity among individuals with clinical diagnoses of AD and MCI, and indicate the potential value of florbetapir F18 PET as an adjunct to clinical diagnosis. 2 key findings →

Design: clinical trial Participants: 184 Evidence: low

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

Differential relationships of reactive astrocytes and microglia to fibrillar amyloid deposits in Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 63 out of 100. Journal of neuropathology and experimental neurology 2013-06-01

Although it is clear that astrocytes and microglia cluster around dense-core amyloid plaques in Alzheimer disease (AD), whether they are primarily attracted to amyloid deposits or are just reacting to plaque-associated neuritic damage remains elusive. 4 key findings →

Evidence: low

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

Definition and description of schizophrenia in the DSM-5

✓ Peer-reviewed alzhub usefulness score 58 out of 100. Schizophrenia research 2013-06-22

Although dementia praecox or schizophrenia has been considered a unique disease for over a century, its definitions and boundaries have changed over this period and its etiology and pathophysiology remain elusive. 5 key findings →

Design: cross-sectional Evidence: moderate

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

Impaired default network functional connectivity in autosomal dominant Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 58 out of 100. Neurology 2013-07-24

These findings suggest that DMN fcMRI may prove useful as a biomarker across a wide spectrum of disease, and support the feasibility of DMN fcMRI as a secondary endpoint in upcoming multicenter clinical trials in Alzheimer disease. 2 key findings →

Design: cross-sectional Evidence: moderate

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

Genetic susceptibility for Alzheimer disease neuritic plaque pathology

✓ Peer-reviewed alzhub usefulness score 57 out of 100. JAMA neurology 2013-09-01

These findings enhance understanding of AD risk factors by relating validated susceptibility alleles to increased neuritic plaque pathology and implicate common genetic variation at the APP locus in the earliest, presymptomatic stages of AD. 4 key findings →

Participants: 114 Evidence: moderate

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

Regional cortical thinning predicts worsening apathy and hallucinations across the Alzheimer disease spectrum

✓ Peer-reviewed alzhub usefulness score 56 out of 100. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry 2013-07-24

Cross-sectional and longitudinal studies. 4 key findings →

Design: cross-sectional Participants: 413 Evidence: moderate

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

Appropriate use criteria for amyloid PET: a report of the Amyloid Imaging Task Force, the Society of Nuclear Medicine and Molecular Imaging, and the Alzheimer's Association

✓ Peer-reviewed alzhub usefulness score 55 out of 100. Alzheimer's & dementia : the journal of the Alzheimer's Association 2013-01-01

Positron emission tomography (PET) of brain amyloid b is a technology that is becoming more available, but its clinical utility in medical practice requires careful definition. 5 key findings →

Evidence: low

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

Dissecting phenotypic traits linked to human resilience to Alzheimer's pathology

✓ Peer-reviewed alzhub usefulness score 55 out of 100. Brain : a journal of neurology 2013-07-03

Clinico-pathological correlation studies and positron emission tomography amyloid imaging studies have shown that some individuals can tolerate substantial amounts of Alzheimer's pathology in their brains without experiencing dementia. 5 key findings →

Evidence: low

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

Cerebral amyloid angiopathy burden associated with leukoaraiosis: a positron emission tomography/magnetic resonance imaging study

✓ Peer-reviewed alzhub usefulness score 51 out of 100. Annals of neurology 2013-02-19

These findings support the idea that vascular amyloid burden directly contributes to chronic cerebral ischemia and highlights the possible utility of amyloid imaging as a marker of CAA severity. 2 key findings →

Evidence: low

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

A phenotypic change but not proliferation underlies glial responses in Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 48 out of 100. The American journal of pathology 2013-04-18

Classical immunohistochemical studies in the Alzheimer disease (AD) brain reveal prominent glial reactions, but whether this pathological feature is due primarily to cell proliferation or to a phenotypic change of existing resting cells remains controversial. 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. 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