Evidence map›Paper›PMID 16823091›Full record

ArticleInternational journal of environmental research and public health2006

Photoirradiation of retinyl palmitate in ethanol with ultraviolet light--formation of photodecomposition products, reactive oxygen species, and lipid peroxides.

Qingsu Xia, Jun J Yin, Wayne G Wamer, Shu-Hui Cherng, Mary D Boudreau, Paul C Howard, Hongtao Yu, Peter P Fu

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.1field-weighted citation impact, top 55% 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

6 citing papers in PubMed, 28 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

8 authors at 4 institutions in 1 country.

Qingsu XiaNational Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA.
Jun J Yin
Wayne G Wamer
Shu-Hui Cherng
Mary D Boudreau
Paul C Howard
Hongtao Yu
Peter P Fu
United States Food and Drug Administration · USCenter for Food Safety and Applied Nutrition · USNational Center for Toxicological Research · USJackson State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have previously reported that photoirradiation of retinyl palmitate (RP), a storage and ester form of vitamin A (retinol), with UVA light resulted in the formation of photodecomposition products, generation of reactive oxygen species, and induction of lipid peroxidation. In this paper, we report our results following the photoirradiation of RP in ethanol by an UV lamp with approximately equal UVA and UVB light. The photodecomposition products were separated by reversed-phase HPLC and characterized spectroscopically by comparison with authentic standards. The identified products include: 4-keto-RP, 11-ethoxy-12-hydroxy-RP, 13-ethoxy-14-hydroxy-RP, anhydroretinol (AR), and trans- and cis-15-ethoxy-AR. Photoirradiation of RP in the presence of a lipid, methyl linoleate, resulted in induction of lipid peroxidation. Lipid peroxidation was inhibited when sodium azide was present during photoirradiation which suggests free radicals were formed. Our results demonstrate that, similar to irradiation with UVA light, RP can act as a photosensitizer leading to free radical formation and induction of lipid peroxidation following irradiation with UVB light.

Indexed as

Ultraviolet RaysDeuterium OxideDiterpenesEthanolLinoleic AcidsLipid PeroxidationReactive Oxygen SpeciesRetinyl EstersSodium AzideVitamin ADeuterium OxideDiterpenesEthanolLinoleic Acidsmethyl linoleateReactive Oxygen Speciesretinol palmitateRetinyl EstersSodium AzideVitamin A

Identifiers

PMID16823091
PMCPMC3807509
OpenAlexW2138373377

What OpenQuestion holds

Textmetadata
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.