Attention deficit is one of the core symptoms of the attention-deficit/hyperactivity disorder (ADHD). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Attention deficit is one of the core symptoms of the attention-deficit/hyperactivity disorder (ADHD). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
NAD(P)H quinone oxidoreductase 1 (NQO1) is a multi-functional protein that catalyses the reduction of quinones (and other molecules), thus playing roles in xenobiotic detoxification and redox balance, and also has roles in stabilising apoptosis regulators such as p53. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In this sample of older individuals, a higher dropout rate occurred in those assigned to the high-technology assessment techniques; however, once participants had completed baseline in all 3 arms, they continued participation through 1 month. 2 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
There is strong evidence that diabetes mellitus increases the risk of cognitive impairment and dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer disease (AD) is an age-related neurodegenerative disorder, characterized histopathologically by the presence of senile plaques (SP), neurofibrillary tangles and synapse loss in selected brain regions. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The increasing prevalence of Alzheimer's disease and the devastating consequences of late-life dementia motivates the drive to develop diagnostic biomarkers to reliably identify the pathology associated with this disorder. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In vivo 11 C-PBB3 binding to the rTg4510 neocortex/hippocampus was increased relative to controls and correlated with local atrophy. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Four hundred and fifty five residents completed all study phases. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
White matter hyperintensities (WMH), commonly found on T2-weighted FLAIR brain MR images in the elderly, are associated with a number of neuropsychiatric disorders, including vascular dementia, Alzheimer's disease, and late-life depression. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cognitive impairment (CI) is a common nonmotor complication of Parkinson's disease (PD), and is associated with significant disability for patients and burden for caregivers. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Interpretation of cognitive test performance among individuals from a given population requires an understanding of cognitive norms in that population. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The availability, accessibility and acceptability of services are critical factors in rural health service delivery. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Central nervous system (CNS) human immunodeficiency virus type 1 (HIV-1) infection begins during primary viremia and continues throughout the course of untreated systemic infection. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Virtually all respondents reported increased skill, knowledge, and confidence, and all would recommend the program to others. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The SHBM provides an empirically based conceptual framework for examining cross-cultural differences in dementia care-seeking among diverse groups. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most common cause of dementia worldwide. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Ethnic minority patients are seen on a regular basis in European dementia clinics. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Only a minority of people with dementia receive a formal diagnosis despite a growing body of evidence highlighting the benefits of early diagnosis and intervention. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The Arabic GDS is a useful measure to assess depression among community-dwelling older adults and primary care patients who do not have dementia. 1 key finding →
Participants: 38 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Internet-based SLT using person-centered interventions provides a feasible model for delivering care to individuals with dementia and mild/moderate aphasia symptoms who have an engaged care-partner and prior familiarity with a computer. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Patients with advanced Parkinson's disease had a significantly higher disease impairment, longer disease duration, and an unstable motor response to levodopa with frequent on-off fluctuations. 5 key findings →
Participants: 29 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
There is scarce information about the pathophysiological processes underlying Late-Life Depression (LLD). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Allostasis designates processes of bodily adaptation to stressful challenges, whereas allostatic load means the costs of wear and tear to the body as a consequence of inefficient allostasis. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Smart mobile and wearable technology offers exciting opportunities to support people with dementia (PwD). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Down syndrome (DS) is the most frequent cause of mental retardation in man. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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.
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 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.
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 →