30,580 Alzheimer's and dementia studies in plain English, each scored out of 100.
Quantitative magnetic resonance imaging (MRI) was used to investigate volumes of different brain structures in 19 patients with late-onset major depression (DSM-III-R), 27 patients with Alzheimer's disease (NINCDS-ADRDA criteria) and 13 age matched controls. 3-D MRI sequences were acquired using a Siemens 1.5 T scanner. 3 key findings →
Participants: 19 Evidence: low
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Default mode network resting state activity in posterior cingulate cortex is abnormally reduced in Alzheimer disease (AD) patients. 2 key findings →
Evidence: low
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We found differential region-specific associations between degenerative and vascular processes and the structural integrity of the CC across the spectrum of cognitive ability. 5 key findings →
Evidence: low
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Stroke is an important risk factor for dementia, but the exact mechanisms involved in cognitive decline remain unclear. 1 key finding →
Evidence: low
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1H-MRS showed significantly lower N-acetylasparatate concentration in DAT and AAMI compared with controls. 5 key findings →
Evidence: low
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We investigated whether previously reported differences between Alzheimer's disease and dementia with Lewy bodies (DLB) in resting occipital activity lead to activation differences within functionally specialized visual cortical areas and deactivation differences in the default network. 2 key findings →
Evidence: low
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Antidepressants have modest efficacy in late-life depression (LLD), perhaps because various neurobiologic processes compromise frontolimbic networks required for antidepressant response. 2 key findings →
Evidence: low
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The relationship between the presence and severity of AIDS dementia complex (ADC) and the levels of human immunodeficiency virus type 1 (HIV-1) RNA in cerebrospinal fluid (CSF) were assessed. 2 key findings →
Evidence: low
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Impairment in instrumental activities of daily living appears to be a relatively independent dimension of health status that is related to depressive symptoms, particularly anxiety and depressive ideation as well as retardation and weight loss. 5 key findings →
Evidence: low
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While providing home care for a family member with senile dementia is clearly extremely stressful, there has been little controlled research assessing the specific effects of this stress on caregiver psychological, social, and health functioning. 3 key findings →
Evidence: low
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Frontotemporal dementia (FTD) is the second most prevalent dementia after Alzheimer's disease (AD). 2 key findings →
Evidence: low
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Alzheimer's disease (AD) is the most common type of dementia and is a significant public health problem that will intensify as the population ages. 3 key findings →
Evidence: low
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This paper examined the emotional impact of diagnosis disclosure on recently diagnosed people with dementia. 1 key finding →
Evidence: low
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Cardiovascular and cerebrovascular disorders are the main cause of death and permanent disability worldwide. 5 key findings →
Evidence: low
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Significant differences emerged between spouse and adult-child caregiver groups as a whole and as a function of Clinical Dementia Rating impairment level. 2 key findings →
Evidence: low
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The precursor of the non-Abeta-component of Alzheimer's disease (AD) amyloid (NACP, alpha-synuclein) aggregates into insoluble filaments of Lewy bodies (LBs) in Parkinson's disease (PD) and dementia with LBs (DLB). 2 key findings →
Evidence: low
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The neuronal ceroid-lipofuscinoses (NCLs) are inherited lysosomal storage diseases and constitute the most common group of children's progressive encephalopathies. 5 key findings →
Evidence: low
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The FDA advisory was associated with decreases in the use of atypical antipsychotics, especially among elderly patients with dementia. 3 key findings →
Evidence: low
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The antigenic profile of neurofibrillary tangles (NFT) in Alzheimer's disease (AD), senile dementia of Alzheimer type (SDAT), progressive supranuclear palsy (PSP) and in non-demented aged humans was investigated by light and electron microscopic immunocytochemistry using antisera and monoclonal antibodies to tubulin, microtubule-associated proteins (MAP1, MAP2 and tau), neurofilament proteins and determinants unique to Alzheimer paired helical filaments (PHF). 1 key finding →
Evidence: low
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Alzheimer's disease neuropathological comorbidities are highly prevalent even in the younger-old. 2 key findings →
Evidence: low
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This review traces evidence that age-related dementia (Alzheimer's disease) results from the destructive impact of the pulse on cerebral vasculature. 2 key findings →
Evidence: low
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In both Alzheimer and vascular dementia subtypes, the prevalence rates did not differ between men and women, but increased with age and were higher in subjects with a low level of education. 2 key findings →
Evidence: low
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Familism has been pointed out as a key value in Hispanic culture that may or may not be associated with caregiver distress. 4 key findings →
Evidence: low
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We review the changing conceptions of schizophrenia over the past 50 years as it became understood as a disorder of brain function and structure in which neurocognitive dysfunction was identified at different illness phases. 2 key findings →
Evidence: low
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The purpose of this study was to explore the phenomenon of dementia caregiving in an ethnically diverse group of Latino caregivers, with the goal of identifying cultural influences on the caregiving experience. 5 key findings →
Design: cross-sectional Evidence: low
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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 30,580 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 30,580 records, built mostly from automated pulls of Europe PMC (64.7% of the library) and OpenAlex (16.6%), 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.
1,037 records (3.4% of the library) are not peer-reviewed — 964 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