Evidence map›Paper›PMID 37721564›Full record

ArticleFrontiers of optoelectronics2023

Mechanisms of phototherapy of Alzheimer's disease during sleep and wakefulness: the role of the meningeal lymphatics.

Semyachkina-Glushkovskaya Oxana, Shirokov Alexander, Blokhina Inna, Fedosov Ivan, Terskov Andrey, Dubrovsky Alexander, Tsoy Maria, Elovenko Daria, Adushkina Viktoria, Evsukova Arina and 7 more

Open access · diamondAbstract read
In one paragraph

Article in Frontiers of optoelectronics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Targeting diabetes-induced brain damage by photobiomodulation: evidence of multiorgan protection.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
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  5. Reconstructing cerebral lymphatic clearance: an emerging target in the Alzheimer's disease therapeutic pipeline.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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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

17 authors at 2 institutions in 2 countries.

Semyachkina-Glushkovskaya OxanaInstitute of Physics, Humboldt University, Berlin, 12489, Germany. glushkovskaya@mail.ru.
Shirokov AlexanderDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Blokhina InnaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Fedosov IvanDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Terskov AndreyDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Dubrovsky AlexanderDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Tsoy MariaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Elovenko DariaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Adushkina ViktoriaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Evsukova ArinaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Telnova ValeriaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Tzven AnnaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Krupnova ValeriaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Manzhaeva MariaDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Dmitrenko AlexanderDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Penzel ThomasDepartment of Biology, Saratov State University, Saratov, 410012, Russia.
Kurths JürgenInstitute of Physics, Humboldt University, Berlin, 12489, Germany.
Saratov State University · RUPotsdam Institute for Climate Impact Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

With the increase in the aging population, the global number of people with Alzheimer's disease (AD) progressively increased worldwide. The situation is aggravated by the fact that there is no the effective pharmacological therapy of AD. Photobiomodulation (PBM) is non-pharmacological approach that has shown very promising results in the therapy of AD in pilot clinical and animal studies. However, the mechanisms of therapeutic effects of PBM for AD are poorly understood. In this study on mice, we demonstrate that photodynamic effects of 5-aminolevulenic acid and laser 635 nm cause reduction of network of the meningeal lymphatic vessels (MLVs) leading to suppression of lymphatic removal of beta-amyloid (Aβ) from the right lateral ventricle and the hippocampus. Using the original protocol of PBM under electroencephalographic monitoring of wakefulness and sleep stages in non-anesthetized mice, we discover that the 7-day course of PBM during deep sleep vs. wakefulness provides better restoration of clearance of Aβ from the ventricular system of the brain and the hippocampus. Our results shed light on the mechanism of PBM and show the stimulating effects of PBM on the brain lymphatic drainage that promotes transport of Aβ via the lymphatic pathway. The effects of PBM on the brain lymphatics in sleeping brain open a new niche in the study of restorative functions of sleep as well as it is an important informative platform for the development of innovative smart sleep technologies for the therapy of AD.

Indexed as

Alzheimer’s diseaseBrain lymphaticsMechanismsPhotobiomodulationSleep

Identifiers

PMID37721564
PMCPMC10507004
OpenAlexW4386817464

What OpenQuestion holds

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Registered trials

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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.