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 46 out of 100. TREM2 and immune genetics

Topic: Brain proteins, microglia and lab models

Introduction Murine microglia expressing the Alzheimer's disease-linked TREM2 R47H mutation display variable decrease in phagocytosis, while impaired phagocytosis is reported following loss of TREM2. However, no data exist on TREM2 +/R47H human microglia. Therefore, we created human pluripotent stem cell (hPSC) monocytes and transdifferentiated microglia-like cells (tMGs) to examine the effect of the TREM2 +/R47H mutation and loss of TREM2 on phagocytosis.

Key findings

Why it matters

Human stem cell-derived monocytes and microglia-like cells with loss of TREM2 showed impaired clearance of amyloid plaques. This is a cell-based laboratory study and does not yet show a treatment, cure, or prevention for Alzheimer's disease in people.

Study details

How this study scored 46/100
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 2 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 4 of 7; Citations per year 3 of 5; Impact for its field and year 3 of 6; Cited by studies here 2 of 6; Still being cited 2 of 4; Senior author's track record 3 of 4; Institution's track record 1 of 3; Multi-centre collaboration 2 of 3; Indexed in PubMed 2 of 2; Free to read 0 of 2. Total 46 of 100.46 of 100 points earned54 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 2 / 5 2019 — within 10 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 4 / 7 Cited 79 times (OpenAlex, 2026-10-10)
Citations per year 3 / 5 8.8 citations a year over 9 year(s) since 2019
Impact for its field and year 3 / 6 Cited 4.0× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 2 / 6 Cited by 8 other studies in this library
Still being cited 2 / 4 Cited 22 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 3 / 4 Last-listed author Catherine M. Verfaillie: h-index 96 (OpenAlex, whole career)
Institution's track record 1 / 3 KU Leuven: institution h-index 1,386 (OpenAlex)
Multi-centre collaboration 2 / 3 OpenAlex lists 5 institution(s) in 3 countries
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 30442540)
Free to read 0 / 2 Behind a paywall — scores zero
Total 46 / 100 —

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

Read the original

Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).

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

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's author list ends in “et al.”, so not every author is named. Check the citation against the original before you use it.

APA 7th

Claes, C., Van Den Daele, J., Boon, R., Schouteden, S., Colombo, A., Monasor, L. S., et al. (2019). Human stem cell-derived monocytes and microglia-like cells reveal impaired amyloid plaque clearance upon heterozygous or homozygous loss of TREM2. Alzheimer's & dementia : the journal of the Alzheimer's Association. https://doi.org/10.1016/j.jalz.2018.09.006

Vancouver

Claes C, Van Den Daele J, Boon R, Schouteden S, Colombo A, Monasor LS, et al. Human stem cell-derived monocytes and microglia-like cells reveal impaired amyloid plaque clearance upon heterozygous or homozygous loss of TREM2. Alzheimer's & dementia : the journal of the Alzheimer's Association. 2019. doi:10.1016/j.jalz.2018.09.006. PMID: 30442540.

BibTeX

@article{claes2019-30442540,
  author  = {Claes, C. and Van Den Daele, J. and Boon, R. and Schouteden, S. and Colombo, A. and Monasor, L. S. and Fiers, M. and Ordovás, L. and others},
  title   = {{Human stem cell-derived monocytes and microglia-like cells reveal impaired amyloid plaque clearance upon heterozygous or homozygous loss of TREM2}},
  journal = {Alzheimer's \& dementia : the journal of the Alzheimer's Association},
  year    = {2019},
  doi     = {10.1016/j.jalz.2018.09.006},
  pmid    = {30442540},
  url     = {https://doi.org/10.1016/j.jalz.2018.09.006}
}

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here. Showing 12 of 26.

Later studies that cite this one

8 studies in the alzhub library list this one in their references.

Related studies in TREM2 and immune genetics

Also tagged “macrophages”

363 studies in the library carry the topic tag “macrophages”; these are this study's neighbours in a fixed, alphabetical-by-hash tour of them, not the closest in content. All 363 tagged studies.

Similar studies

More on TREM2 and immune genetics

See all studies in TREM2 and immune genetics →