Evidence map›Paper›PMID 30984874›Full record

ArticleJournal of geriatric care and research2018

Galantamine-memantine combination superior to donepezil-memantine combination in Alzheimer's disease: critical dissection with an emphasis on kynurenic acid and mismatch negativity.

Maju Mathew Koola, Agnieszka Nikiforuk, Anilkumar Pillai, Ajay K Parsaik

Open access · greenAbstract read
In one paragraph

Article in Journal of geriatric care and research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Effect of donepezil and memantine on improvement of cognitive function in patients with temporal lobe epilepsy.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2020
    Article
  10. Article
  11. Effect of Multiple Medicines on Dementia Initial Treatment: Experience and Thinking.American journal of Alzheimer's disease and other dementias
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 2 countries.

Maju Mathew KoolaDepartment of Psychiatry and Behavioral Sciences, George Washington University School of Medicine and Health Sciences, Washington, DC, USA, mkoola@gwu.edu.
Agnieszka NikiforukDepartment of Behavioral Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland, nikifor@if-pan.krakow.pl.
Anilkumar PillaiDepartment of Psychiatry and Health Behavior, Medical College of Georgia, Augusta University, Augusta, GA, USA, apillai@augusta.edu.
Ajay K ParsaikDepartment of Psychiatry and Behavioral Health, Marshfield Clinic Health System, Marshfield, WI, USA, drajayparsaik@gmail.com.
Augusta University · USGeorge Washington University · USMarshfield Clinic · USPolish Academy of Sciences · PL

Funding

Regulation of TrkB signaling by 5-HT: role of transglutaminase 2R01MH097060 · NIMH · AUGUSTA UNIVERSITY · PI PILLAI, ANILKUMAR · 2012 to 2016
$1.5M
NIMH NIH HHS R01 MH097060
6 · The paper itself

Abstract

backgroundThe donepezil-memantine combination is a US Food and Drug Administration (FDA)-approved medication to treat Alzheimer's disease (AD). Galantamine is superior to donepezil because it is a positive allosteric modulator of the alpha-7 nicotinic acetylcholine receptor (α7nAChR). Although galantamine and memantine are both FDA approved for the treatment of AD, the combination is still underutilized in clinical practice.

aimThe objective of this review was to critically examine the mechanisms by which the galantamine-memantine combination may be superior to the donepezil-memantine combination in AD by targeting the cholinergic-nicotinic and glutamatergic systems concurrently.

methodPubMed and Google Scholar were searched using the keywords Alzheimer's disease, cholinergic, glutamatergic, α7nAChR,

resultsAD is associated with several biomarkers such as kynurenine pathway (KP) metabolites, mismatch negativity (MMN), brain-derived neurotrophic factor (BDNF), and oxidative stress. In several preclinical studies, cognitive impairments significantly improved with the galantamine-memantine combination compared to either medication alone. Synergistic benefits were also seen with the combination. In a randomized controlled trial (RCT) in prodrome AD, cognition significantly improved with the galantamine-memantine combination compared to galantamine alone; cognition declined after galantamine was discontinued. However, in an RCT in AD, cognition did not significantly improve with the galantamine-memantine combination compared to galantamine alone. In a retrospective study in AD, the galantamine-memantine combination significantly improved cognition compared to the donepezil-memantine combination. Galantamine and memantine via the α7nACh and NMDA receptors can counteract the effects of kynurenic acid and enhance MMN and BDNF.

conclusionFuture studies with the galantamine-memantine combination with KP metabolites, MMN, and BDNF as biomarkers are warranted. Positive RCTs in AD may lead to FDA approval of the combination, resulting in greater utilization in clinical practice. In the meantime, clinicians may continue to use the galantamine-memantine combination to treat patients with AD.

Indexed as

Alzheimer’s diseasebrain-derived neurotrophic factorgalantaminekynurenine pathwaymemantinemismatch negativityoxidative stress

Identifiers

PMID30984874
PMCPMC6457262
OpenAlexW2952594181

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.