Evidence map›Paper›PMID 41482155›Full record

ArticleJournal of lipid research2026

Spatial mapping of PUFA incorporation into phospholipids with bisallylic deuteration.

Junji Obi, Kuniyuki Kano, Yuta Shimanaka, Shukichi Haisa, Nozomu Kono, Junken Aoki

Abstract read
In one paragraph

Article in Journal of lipid research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Junji ObiLaboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Kuniyuki KanoLaboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan. Electronic address: k-kano@mol.f.u-tokyo.ac.jp.
Yuta ShimanakaLaboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Shukichi HaisaLaboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Nozomu KonoLaboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Junken AokiLaboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan. Electronic address: jaoki@mol.f.u-tokyo.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MS imaging using stable isotope-labeled fatty acids provides a groundbreaking approach to precisely localizing exogenous fatty acids and their metabolites in vivo. However, challenges persist, particularly with fatty acids labeled with fixed isotopic numbers, which can lead to spectral interferences and limit the number of metabolites that can be detected. In this study, we employed a bisallylic deuteration method to synthesize dihomo-γ-linolenic acid (DGLA) isotopes with m/z values ranging from +4 to +8 Da relative to endogenous DGLA, which allowed us to meticulously dissect DGLA metabolism in mice using LC-quadrupole TOF-MS and MS imaging. Our strategy enabled the clear selection of m/z values for phospholipids enriched with deuterated DGLA (D-DGLA) and deuterated arachidonic acid derived from D-DGLA, all while maintaining low background noise. This precision facilitated the successful visualization of D-DGLA and D-arachidonic acid-containing phospholipids in lung tissue, revealing their distinct localization compared with endogenous phospholipids. Our findings highlight bisallylic deuteration as a powerful tool for elucidating the in vivo dynamics of exogenous PUFAs through MS imaging techniques.

Indexed as

DeuteriumFatty Acids, UnsaturatedPhospholipids8,11,14-Eicosatrienoic AcidAnimalsMiceMice, Inbred C57BL8,11,14-Eicosatrienoic AcidDeuteriumFatty Acids, UnsaturatedPhospholipidsbisallylic deuterationdihomo-γ-linolenic acidMS imagingphospholipidsPUFAs

Identifiers

PMID41482155
PMCPMC12955629

What Socratic holds

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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 Socratic graph.