Evidence map›Paper›PMID 30930973›Full record

ArticleExperimental and therapeutic medicine2019

Changes in oxidative stress levels during two weeks of smoking cessation treatment and their association with nutritional characteristics in Japanese smokers.

Shino Oba, Yohei Inaba, Tomoyuki Shibuya, Joji Oshima, Kuniaki Seyama, Toshihiro Kobayashi, Naoki Kunugita, Toshihiro Ino

Open access · diamondAbstract read
In one paragraph

Article in Experimental and therapeutic medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 36% 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, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
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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 5 institutions in 1 country.

Shino ObaGraduate School of Health Sciences, Gunma University, Maebashi, Gunma 371-8514, Japan.
Yohei InabaDepartment of Environmental Health, National Institute of Public Health, Wako, Saitama 351-0197, Japan.
Tomoyuki ShibuyaShibuya Clinic, Kumagaya, Saitama 360-0812, Japan.
Joji OshimaKubojima Clinic, Kumagaya, Saitama 360-0831, Japan.
Kuniaki SeyamaDivision of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Bunkyo-Ku, Tokyo 113-8431, Japan.
Toshihiro KobayashiKobayashi Pediatric Clinic, Kumagaya, Saitama 360-0204, Japan.
Naoki KunugitaDepartment of Environmental Health, National Institute of Public Health, Wako, Saitama 351-0197, Japan.
Toshihiro InoFaculty of Health Science, Gunma Paz University, Takasaki, Gunma 370-0006, Japan.
National Institute of Public Health · JPGumma Paz College · JPGunma University · JPJuntendo University · JPSaitama Prefectural Kumagaya Girls High School · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although several experimental studies have reported that oxidative stress levels decrease during smoking cessation, how they change among general smokers has yet to be completely elucidated. In the present study, a total of 23 smokers who underwent smoking cessation treatment were observed for two-week changes in their levels of 8-OHdG and 8-isoprostane. Physical and nutritional characteristics were measured at the initial patient visit, and casual urine samples were collected at the initial visit and at a follow-up visit two weeks later. Oxidative stress was measured by a high performance liquid chromatography electrochemical detector, and the two-week difference in the levels of oxidative stress was assessed according to demographic and nutrient factors. Neither the urinary level of 8-OHdG nor that of 8-isoprostane decreased, although the cotinine level was decreased at two weeks. A Two-way repeated ANOVA revealed a significant interaction for fat intake by time for the change in the 8-OHdG level (P=0.03) and significant interactions for α-tocopherol intake (P=0.03), iron intake, and carbohydrate intake (P=0.03), all of which were time-dependent for the change in the 8-isoprostane level. The 8-OHdG level decreased among smokers with a high fat intake and was increased with a low fat intake. The 8-isoprostane levels were decreased among smokers with a high carbohydrate intake and increased with a low carbohydrate intake, decreased with a low iron intake and increased with a high iron intake and decreased with a low α-tocopherol intake and increased with a high α-tocopherol intake. Although the present study failed to observe a decrease in oxidative stress levels during the two-week smoking cessation period, we hypothesize that the intake levels of specific nutrients when initiating smoking cessation treatment may predict any subsequent changes in the oxidative stress levels.

Indexed as

8-isoprostane8-OH-dGnutritional statusoxidative stresssmoking cessation

Identifiers

PMID30930973
PMCPMC6425457
OpenAlexW2911940981

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.