Evidence map›Paper›PMID 28272345›Full record

ArticleNutrients2017

Polyunsaturated Fatty Acid Levels in Maternal  Erythrocytes of Japanese Women during Pregnancy  and after Childbirth.

Terue Kawabata, Yasuo Kagawa, Fumiko Kimura, Teruo Miyazawa, Shoji Saito, Takahiro Arima, Kunihiko Nakai, Nobuo Yaegashi

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  7. Association ofNutrients · 2023
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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 3 institutions in 1 country.

Terue KawabataFaculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado, Saitama 350-0288, Japan. kawabata@eiyo.ac.jp.
Yasuo KagawaFaculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado, Saitama 350-0288, Japan. kagawa@eiyo.ac.jp.
Fumiko KimuraFaculty of Comprehensive Human Sciences, Shokei Gakuin University, 4-10-1 Yurigaoka, Natori, Miyagi 981-1295, Japan. miyazawa@m.tohoku.ac.jp.
Teruo MiyazawaFood and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Sciences, Tohoku University, 468-1 aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845, Japan. miyazawa@m.tohoku.ac.jp.
Shoji SaitoDepartment of Gynecology and Obstetrics, Tohoku University Graduate School of Medicine, 2-1 Seiryomachi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. shojisaiko5324@yahoo.co.jp.
Takahiro ArimaDepartment of Informative Genetics, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. tarima@med.tohoku.ac.jp.
Kunihiko NakaiDepartment of Development and Environmental Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. nakaik@med.tohoku.ac.jp.
Nobuo YaegashiDepartment of Gynecology and Obstetrics, Tohoku University Graduate School of Medicine, 2-1 Seiryomachi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. yaegashi@med.tohoku.ac.jp.
Tohoku University · JPKagawa Nutrition University · JPShokei Gakuin University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe transport of polyunsaturated fatty acids (PUFAs), such as arachidonic acid (ARA, 20:4n-6) and docosahexaenoic acid (DHA, 22:6n-3), to the fetus from maternal stores increases depending on the fetal requirements for PUFA during the last trimester of pregnancy. Therefore, maternal blood PUFA changes physiologically with gestational age. However, the changes in PUFA levels in maternal blood erythrocytes during pregnancy and after childbirth have not been fully investigated in a fish-eating population.

objectiveTo examine the changes of ARA and DHA levels in maternal erythrocytes with the progress of pregnancy and the relationship between maternal and umbilical cord erythrocyte PUFA levels in pregnant Japanese women who habitually eat fish and shellfish.

designThis study was performed as a part of the adjunct study of the Japan Environment and Children's Study (JECS). The participants were 74 pregnant women. The maternal blood samples were collected at 27, 30, and 36 weeks of pregnancy, and 2 days and 1 month after delivery, and umbilical cord blood was collected at delivery. The fatty acid levels of erythrocytes in these blood samples were determined.

resultsARA and DHA levels in maternal erythrocytes tended to decrease with the progress of pregnancy. While the DHA level decreased further after delivery, the ARA level returned to the value at 27 weeks of pregnancy within 1 month after delivery. The n-3 and n-6 PUFA levels in maternal erythrocytes at 27, 30, and 36 weeks of pregnancy were significantly positively correlated with the corresponding fatty acid levels in umbilical cord erythrocytes.

conclusionThe present findings showed a significant change in erythrocyte PUFA levels during pregnancy and after childbirth in a fish-eating population. The PUFA levels of maternal blood after the second trimester may be a reliable marker for predicting PUFA levels in infants' circulating blood.

Indexed as

AdultAnimalsAsian PeopleBiomarkersDietDocosahexaenoic AcidsEicosapentaenoic AcidErythrocytesFemaleFetal BloodFishesGestational AgeHumansInfantJapanMaternal-Fetal ExchangeBiomarkersDocosahexaenoic AcidsEicosapentaenoic Acidarachidonic acid (ARA)docosahexaenoic  acid  (DHA)Japanesepolyunsaturated  fatty  acid  (PUFA)pregnancy

Identifiers

PMID28272345
PMCPMC5372908
OpenAlexW2593577468

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.