Evidence map›Paper›PMID 23801246›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2013

Chronic rapamycin restores brain vascular integrity and function through NO synthase activation and improves memory in symptomatic mice modeling Alzheimer's disease.

Ai-Ling Lin, Wei Zheng, Jonathan J Halloran, Raquel R Burbank, Stacy A Hussong, Matthew J Hart, Martin Javors, Yen-Yu Ian Shih, Eric Muir, Rene Solano Fonseca and 5 more

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05386914 (Part I), which is not on this map. Cited by 149 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
149citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 2% 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.

NCT05386914 phase1active not recruitingnot on this mapstarted 2023, after this paper: background citation

Part I: Short Term ApoE-dependent Cerebral Blood Flow Response to Sirolimus in Cognitively Normal Adults Part II: Short Term ApoE-dependent Cerebral Blood Flow and Lung Perfusion Response to Sirolimus in Cognitively Normal Adults

TypeinterventionalSponsorUniversity of Missouri-ColumbiaRan2023 to 2027Enrolled205ConditionsGenetic Predisposition to Disease, Healthy VolunteersArmsSirolimus
3 · Its place in the literature

Who cites it

149 citing papers in PubMed, 1 synthesis or guideline pooled it, 204 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Rapamycin increases cerebral blood flow and modulates metabolic, inflammatory, and microbiome profiles in healthy middle-aged APOE4 carriers: A pilot single-arm trial.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Autophagy-lysosomal pathway in neurodegeneration.Molecular neurodegeneration advances · 2026
    Review
  14. Review
  15. Review
  16. Article
  17. Microglial MS4A4A Protects against Epileptic Seizures in Alzheimer's Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  18. Article
  19. Article
  20. Review

89 more citing papers are in PubMed but not listed here.

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

15 authors at 3 institutions in 1 country.

Ai-Ling LinResearch Imaging Institute, San Antonio, TX, USA.
Wei Zheng
Jonathan J Halloran
Raquel R Burbank
Stacy A Hussong
Matthew J Hart
Martin Javors
Yen-Yu Ian Shih
Eric Muir
Rene Solano Fonseca
Randy Strong
Arlan G Richardson
James D Lechleiter
Peter T Fox
Veronica Galvan
The University of Texas Health Science Center at San Antonio · USGeriatric Research Education and Clinical Center · USImaging Center · US

Funding

TISSUE CULTURE---COREP30CA054174 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Lei Zheng · 1991 to 2026
$59.1M
TRANSGENIC COREP30AG013319 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI RANDY STRONG, Adam Salmon · 1995 to 2026
$30.6M
Center for Testing Potential Anti-Aging InterventionsU01AG022307 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI RANDY STRONG, Adam Salmon · 2004 to 2026
$26.3M
TRAINING GRANT ON THE BIOLOGY OF AGINGT32AG021890 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Erzsebet Kokovay, JAMES FLOYD NELSON · 2003 to 2026
$11.4M
Can Rapamycin Retard Age-Related Diseases?RC2AG036613 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI RICHARDSON, ARLAN G. · 2009 to 2010
$5.2M
Neuroimaging Assessments of Brain Integrity in Aging MiceK01AG040164 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI LIN, AI-LING · 2012 to 2016
$462k
NCI NIH HHS P30 CA054174NCI NIH HHS P30 CA54174NIA NIH HHS 5T32AG021890NIA NIH HHS K01 AG040164NIA NIH HHS P30 AG013319NIA NIH HHS P30AG-13319NIA NIH HHS RC2 AG036613NIA NIH HHS RC2AG036613NIA NIH HHS T32 AG021890NIA NIH HHS U01 AG022307NIA NIH HHS U01AG022307
6 · The paper itself

Abstract

Vascular pathology is a major feature of Alzheimer's disease (AD) and other dementias. We recently showed that chronic administration of the target-of-rapamycin (TOR) inhibitor rapamycin, which extends lifespan and delays aging, halts the progression of AD-like disease in transgenic human (h)APP mice modeling AD when administered before disease onset. Here we demonstrate that chronic reduction of TOR activity by rapamycin treatment started after disease onset restored cerebral blood flow (CBF) and brain vascular density, reduced cerebral amyloid angiopathy and microhemorrhages, decreased amyloid burden, and improved cognitive function in symptomatic hAPP (AD) mice. Like acetylcholine (ACh), a potent vasodilator, acute rapamycin treatment induced the phosphorylation of endothelial nitric oxide (NO) synthase (eNOS) and NO release in brain endothelium. Administration of the NOS inhibitor L-NG-Nitroarginine methyl ester reversed vasodilation as well as the protective effects of rapamycin on CBF and vasculature integrity, indicating that rapamycin preserves vascular density and CBF in AD mouse brains through NOS activation. Taken together, our data suggest that chronic reduction of TOR activity by rapamycin blocked the progression of AD-like cognitive and histopathological deficits by preserving brain vascular integrity and function. Drugs that inhibit the TOR pathway may have promise as a therapy for AD and possibly for vascular dementias.

Indexed as

Alzheimer DiseaseAmyloid beta-Protein PrecursorAnimalsAnti-Bacterial AgentsBrainDisease Models, AnimalEnzyme ActivationEnzyme InhibitorsHumansMemoryMiceMice, TransgenicNitric OxideNitric Oxide Synthase Type IIINitroargininePhosphorylationAmyloid beta-Protein PrecursorAnti-Bacterial AgentsAPP protein, humanEnzyme InhibitorsNitric OxideNitric Oxide Synthase Type IIINitroarginineNos3 protein, mouseSirolimus

Identifiers

PMID23801246
PMCPMC3764385
OpenAlexW2059278059

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.