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Combined administration of resolvin E1 and lipoxin A4 resolves inflammation in a murine model of Alzheimer's disease
Kantarci A, Aytan N, Palaska I, Stephens D, Crabtree L, Benincasa C, Jenkins BG, Carreras I et al.. Experimental neurology, 2017-11-07
Topic: Brain proteins, microglia and lab models
Dysfunction in the resolution of inflammation may play a key role in Alzheimer's disease (AD). In this study, we found that the levels of specialized pro-resolving lipid mediators (SPMs) in the hippocampus of 5xFAD mice are significantly lower than in non-transgenic littermates. We, therefore, tested the hypothesis that treatment with resolvin E1 (RvE1) and lipoxin A4 (LXA4) alone or in combination will reverse the neuroinflammatory process and decrease Aβ pathology. 5xFAD mice were treated intraperitoneally starting at 1month of age with RvE1 or LXA4 alone or in combination at a dose of 1.5 μg/kg, 3 times a week until 3months of age. We found that treatment with RvE1 or LXA4 alone or in combination increased the concentration of RvE1, LXA4, and RvD2 in the hippocampus as measured by ELISA. Combination treatment of RvE1 and LXA4 had a more potent effect on the activation of microglia and astrocytes than either treatment alone, measured by immunohistochemistry with Iba1 and GFAP antibodies, respectively. The concentrations of Aβ40 and Aβ42 were measured by ELISA and the percentage of Aβ plaques were analyzed by immunohistochemistry. All treatments single and in combination, decreased the measures of Aβ pathology and restored the homeostasis reversing the inflammatory process for inflammatory cytokines and chemokines (GM-CSF, IFN-γ, IL-1β, IL-6, IL-10, TNF-α, MCP-1, MIP-1α, MIP-1β, and RANTES) as measured by multiplex immunoassay. Overall, the study showed that the levels of SPMs in the hippocampus of 5xFAD mice were significantly lower than in wild-type mice; that treatment with RvE1 and LXA4 restored the level of these compounds, reversed the inflammatory process, and decreased the neuroinflammation associated with Aβ pathology in 5xFAD mice.
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APA 7th
Kantarci, A., Aytan, N., Palaska, I., Stephens, D., Crabtree, L., Benincasa, C., et al. (2018). Combined administration of resolvin E1 and lipoxin A4 resolves inflammation in a murine model of Alzheimer's disease. Experimental neurology. https://doi.org/10.1016/j.expneurol.2017.11.005
Vancouver
Kantarci A, Aytan N, Palaska I, Stephens D, Crabtree L, Benincasa C, et al. Combined administration of resolvin E1 and lipoxin A4 resolves inflammation in a murine model of Alzheimer's disease. Experimental neurology. 2018. doi:10.1016/j.expneurol.2017.11.005. PMID: 29126887.
BibTeX
@article{kantarci2018-29126887,
author = {Kantarci, A. and Aytan, N. and Palaska, I. and Stephens, D. and Crabtree, L. and Benincasa, C. and Jenkins, B. G. and Carreras, I. and others},
title = {{Combined administration of resolvin E1 and lipoxin A4 resolves inflammation in a murine model of Alzheimer's disease}},
journal = {Experimental neurology},
year = {2018},
doi = {10.1016/j.expneurol.2017.11.005},
pmid = {29126887},
url = {https://doi.org/10.1016/j.expneurol.2017.11.005}
}
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Key findings
- In this study, we found that the levels of specialized pro-resolving lipid mediators (SPMs) in the hippocampus of 5xFAD mice are significantly lower than in non-transgenic littermates.
- We found that treatment with RvE1 or LXA4 alone or in combination increased the concentration of RvE1, LXA4, and RvD2 in the hippocampus as measured by ELISA.
- Overall, the study showed that the levels of SPMs in the hippocampus of 5xFAD mice were significantly lower than in wild-type mice; that treatment with RvE1 and LXA4 restored the level of these compounds, reversed the inflammatory process, and decreased the neuroinflammation associated with Aβ pathology in 5xFAD mice.
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Study details
- Evidence strengthLow
How this study scored 38/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported and randomised / blinded because the record does not state it. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multi-centre collaboration, so those were left out: it earned 22 of the 58 points we could judge it on, which is 38 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Experimental neurology) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| 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 | 2018 — 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 | Laboratory or animal study (title names “murine”) — scores zero |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multi-centre collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 29126887) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 22 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 22 of the 58 points we could judge it on is 38 out of 100. |
| Total | 38 / 100 | — |
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