Get help now — free helplines

You can call any of these for free. You do not need a diagnosis, an appointment, or a crisis to call — questions and plain exhaustion are reasons enough.

  • Alzheimer's Association 24/7 Helpline 800-272-3900 24 hours a day, 365 days a year Free, confidential support and information for people with dementia, caregivers, families and the public. Master's-level clinicians. Also Spanish.
  • 988 Suicide & Crisis Lifeline 988 24/7 Call or text 988, or chat at 988lifeline.org. For anyone in emotional distress or a mental-health crisis, including caregivers.
  • Alzheimer's Foundation of America (AFA) Helpline 866-232-8484 9:00 am - 9:00 pm ET, seven days a week Licensed social workers providing support, info and referrals. Also text message and web chat. Text: 646-586-5283

In a medical emergency, call 911. More numbers, and what each line does, on the help page.

This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

✓ Peer-reviewed alzhub usefulness score 48 out of 100. Inflammation and the immune system

Topic: Amyloid, tau and blood-test diagnosis

Background Alzheimer's disease (AD) and Parkinson's disease (PD) are the two common neurodegenerative diseases characterized by progressive neuronal dysfunction in the presence of pathological microglial activation. Methods 10 AD, 10 mild cognitive impairment (MCI), 11 PD dementia (PDD), and 16 controls underwent magnetic resonance imaging, [11C](R)PK11195 (1-[2-chlorophenyl]-N-methyl-N-[1-methyl-propyl]-3-isoquinoline carboxamide), [11C]PIB (11C-Pittsburgh compound B), [18F]FDG-PET (18F-2-fluoro-2-deoxyglucose positron emission tomography) scans. Parametric images were interrogated using region of interest (ROI), biological parametric mapping (BPM) and statistical parametric mapping analysis, and neuropsychometric tests.

Cite this study APA, Vancouver, BibTeX · download .bib or .ris

APA 7th

Fan, Z., Aman, Y., Ahmed, I., Chetelat, G., Landeau, B., Ray Chaudhuri, K., et al. (2015). Influence of microglial activation on neuronal function in Alzheimer's and Parkinson's disease dementia. Alzheimer's & dementia : the journal of the Alzheimer's Association. https://doi.org/10.1016/j.jalz.2014.06.016

Vancouver

Fan Z, Aman Y, Ahmed I, Chetelat G, Landeau B, Ray Chaudhuri K, et al. Influence of microglial activation on neuronal function in Alzheimer's and Parkinson's disease dementia. Alzheimer's & dementia : the journal of the Alzheimer's Association. 2015. doi:10.1016/j.jalz.2014.06.016. PMID: 25239737.

BibTeX

@article{fan2015-25239737,
  author  = {Fan, Z. and Aman, Y. and Ahmed, I. and Chetelat, G. and Landeau, B. and Ray Chaudhuri, K. and Brooks, D. J. and Edison, P.},
  title   = {{Influence of microglial activation on neuronal function in Alzheimer's and Parkinson's disease dementia}},
  journal = {Alzheimer's \& dementia : the journal of the Alzheimer's Association},
  year    = {2015},
  doi     = {10.1016/j.jalz.2014.06.016},
  pmid    = {25239737},
  url     = {https://doi.org/10.1016/j.jalz.2014.06.016}
}

Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record names 8 authors; APA and Vancouver show the first six, BibTeX and the downloads carry all of them. Check the citation against the original before you use it.

Key findings

Why it matters

This imaging study compared microglial activation and neuronal function in small groups of people with Alzheimer's disease, mild cognitive impairment, Parkinson's disease dementia and controls. It is a small study that describes associations between brain inflammation and neuronal function, not a treatment or cure.

Study details

How this study scored 48/100
How this study's score is builtJournal tier 9 of 10; Journal's citation record 2 of 4; Study design 0 of 12; Strength of evidence 1 of 5; Peer-review validation 10 of 10; How recent 1 of 5; Sample size 0 of 4; Effect reported 0 of 3; Studied in people 0 of 3; Randomised / blinded 0 of 2; Times cited 5 of 7; Citations per year 3 of 5; Impact for its field and year 3 of 6; Cited by studies here 3 of 6; Still being cited 2 of 4; Senior author's track record 3 of 4; Institution's track record 2 of 3; Multi-centre collaboration 2 of 3; Indexed in PubMed 2 of 2; Free to read 0 of 2. Total 48 of 100.48 of 100 points earned52 not earned

Published in a leading specialty journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it.

ComponentPointsWhy
Journal tier 9 / 10 Tier 2 — leading specialty journal (Alzheimer's & dementia : the journal of the Alzheimer's Association)
Journal's citation record 2 / 4 Alzheimer s & Dementia: journal h-index 228 (OpenAlex, 2026-10-29)
Study design 0 / 12 No study design recorded — scores zero, not guessed (not stated in the record — scored 0)
Strength of evidence 1 / 5 Rated “low” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 1 / 5 2015 — within 20 year(s) of the newest study here
Sample size 0 / 4 Participant count not stated — scores zero (not stated in the record — scored 0)
Effect reported 0 / 3 No effect size reported — scores zero (not stated in the record — scored 0)
Studied in people 0 / 3 Not stated whether this was studied in people — scores zero (not stated in the record — scored 0)
Randomised / blinded 0 / 2 No randomisation or blinding stated — scores zero (not stated in the record — scored 0)
Times cited 5 / 7 Cited 212 times (OpenAlex, 2026-10-10)
Citations per year 3 / 5 16.3 citations a year over 13 year(s) since 2015
Impact for its field and year 3 / 6 Cited 6.3× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 3 / 6 Cited by 17 other studies in this library
Still being cited 2 / 4 Cited 42 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 3 / 4 Last-listed author Paul Edison: h-index 53 (OpenAlex, whole career)
Institution's track record 2 / 3 Inserm: institution h-index 1,988 (OpenAlex)
Multi-centre collaboration 2 / 3 OpenAlex lists 7 institution(s) in 2 countries
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 25239737)
Free to read 0 / 2 Behind a paywall — scores zero
Total 48 / 100 —

What each of these 20 components measures, and what this score is not →

Read the original

May need a subscription OpenAlex found no free copy of the full text (checked 6 Feb 1020), so the publisher may charge for it. The PubMed abstract is free.

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here.

Later studies that cite this one

17 studies in the alzhub library list this one in their references. Showing the 8 highest-scoring.

Related studies in Inflammation and the immune system

Also tagged “precursor”

1,339 studies in the library carry the topic tag “precursor”; these are this study's neighbours in a fixed, alphabetical-by-hash tour of them, not the closest in content. All 1,339 tagged studies.

Similar studies

More on Inflammation and the immune system

See all studies in Inflammation and the immune system →