Evidence map›Paper›PMID 22645022›Full record

ArticleAge (Dordrecht, Netherlands)2013

Decreased oxidant profile and increased antioxidant capacity in naturally postmenopausal women.

V J Victorino, C Panis, F C Campos, R C Cayres, A N Colado-Simão, S R Oliveira, A C S A Herrera, A L Cecchini, R Cecchini

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Age (Dordrecht, Netherlands), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 74 citations in OpenAlex.

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  9. Observational
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  12. Parameters of Oxidative Stress in Reproductive and Postmenopausal Mexican Women.International journal of environmental research and public health · 2020
    Article
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  14. Review
  15. Correlation of TGF-β1 and oxidative stress in the blood of patients with melanoma: a clue to understanding melanoma progression?Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
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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

9 authors at 1 institution in 1 country.

V J VictorinoLaboratory of Pathophysiology and Free Radicals, Department of General Pathology, State University of Londrina, 86051-990, Londrina, Paraná, Brazil. vanjacob@gmail.com
C Panis
F C Campos
R C Cayres
A N Colado-Simão
S R Oliveira
A C S A Herrera
A L Cecchini
R Cecchini
Universidade Estadual de Londrina · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent works have shown a dual side of estrogens, and research on the relationship between oxidative stress and menopausal status remains unclear and has produced controversial results. In this work, we aimed to evaluate by sensitive methods the oxidant and antioxidant changes that develop after natural menopause. Thirty premenopausal and 28 naturally postmenopausal women volunteered for this study. Blood was collected and plasma used. 17-OH estradiol levels in plasma were estimated. Plasma levels of advanced oxidation protein products (AOPP), lipid peroxidation products (such as hydroperoxides and malondialdehyde (MDA)), and nitrites were measured, and total radical antioxidant parameter testing was performed to determine the oxidant and antioxidant profiles, respectively. Estrogen levels were significantly increased (p < 0.02) in premenopausal women (54.28 ± 9.34 pg/mL) as compared with postmenopausal women (18.10 ± 1.49 pg/mL). Postmenopausal women had lower levels of lipid hydroperoxide oxidation (p < 0.0001), lipid hydroperoxide levels evaluated by the area under the curve (AUC; 1,366,000 ± 179,400 AUC; p < 0.01), and hydroperoxides as measured by the ferrous oxidation-xylenol orange method (31.48 ± 2.7 μM; p < 0.0001). The MDA levels did not differ between pre- and postmenopausal women whether measured by thiobarbituric acid-reactive substances or high-performance liquid chromatography assays. No differences in AOPP and nitrite levels were observed between pre- and postmenopausal women. Postmenopausal women also exhibited a higher total radical antioxidant level (0.89 ± 0.08 μM Trolox; p < 0.0001). Postmenopausal women demonstrated lower levels of oxidative damage and a higher antioxidant capacity than premenopausal women.

Indexed as

AdultAdvanced Oxidation Protein ProductsAntioxidantsChromatography, High Pressure LiquidFemaleFollow-Up StudiesHumansHydrogen PeroxideLipid PeroxidationMalondialdehydeMiddle AgedOxidantsOxidative StressPostmenopauseRetrospective StudiesAdvanced Oxidation Protein ProductsAntioxidantsHydrogen PeroxideMalondialdehydeOxidants

Identifiers

PMID22645022
PMCPMC3705106
OpenAlexW2052916252

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.