Evidence map›Paper›PMID 31126115›Full record

ArticleInternational journal of molecular sciences2019

The Dipeptidyl Peptidase-4 Inhibitor Linagliptin Ameliorates High-fat Induced Cognitive Decline in Tauopathy Model Mice.

Yuriko Nakaoku, Satoshi Saito, Yumi Yamamoto, Takakuni Maki, Ryosuke Takahashi, Masafumi Ihara

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Yuriko NakaokuDepartment of Neurology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan. yurikon@kuhp.kyoto-u.ac.jp.
Satoshi SaitoDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita 565-8565, Japan. saitosa@ncvc.go.jp.
Yumi YamamotoDepartment of Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Center, Suita 565-8565, Japan. yumi.yamamoto@ncvc.go.jp.
Takakuni MakiDepartment of Neurology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan. harutoma@kuhp.kyoto-u.ac.jp.
Ryosuke TakahashiDepartment of Neurology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan. ryosuket@kuhp.kyoto-u.ac.jp.
Masafumi IharaDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita 565-8565, Japan. ihara@ncvc.go.jp.ORCID 0000-0002-7102-4048
Kyoto University · JPNational Cerebral and Cardiovascular Center · JPJapan Society for the Promotion of Science · JP

Funding

Boehringer Ingelheim 1
6 · The paper itself

Abstract

Vascular risk factors, such as type 2 diabetes mellitus (T2DM), are associated with the increased risk of Alzheimer's disease. One of the common T2DM medications, dipeptidyl peptidase (DPP)-4 inhibitors, have a minimum risk for hypoglycemia and have recently been suggested to ameliorate β-amyloid pathology. However, conflicting results have been reported regarding the effects of DPP-4 inhibition on cognitive function and tau pathology. Thus, we investigated whether inhibiting DPP-4 affects tau pathology and cognition in a mouse model of tauopathy with hyperglycemia. Male mice overexpressing the P301S mutant human microtubule-associated protein tau gene (PS19) were fed either a low or high-fat diet. PS19 mice were then administered either linagliptin, a DPP-4 inhibitor, or vehicle, from 6 weeks to 8 months of age. Linagliptin-treated mice exhibited higher levels of glucagon-like peptide-1 and decreased fasting blood glucose, compared with the vehicle-treated mice at 8 months. Linagliptin treatment significantly restored spatial reference memory and increased cerebral blood flow without affecting phosphorylation levels of tau or endothelial nitric oxide synthase (eNOS) in the brain. Linagliptin may ameliorate HFD-induced cognitive worsening in tauopathy, at least partially, by increasing cerebral perfusion via the eNOS-independent pathway.

Indexed as

AnimalsCognitive DysfunctionDiet, High-FatDipeptidyl-Peptidase IV InhibitorsDisease Models, AnimalHumansHyperglycemiaHypoglycemic AgentsLinagliptinMaleMiceMice, Inbred C57BLTauopathiesDipeptidyl-Peptidase IV InhibitorsHypoglycemic AgentsLinagliptincerebral blood flowdipeptidyl peptidase-4 inhibitorshigh-fat dietspatial reference memorytau

Identifiers

PMID31126115
PMCPMC6566831
OpenAlexW2945891401

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.