Evidence map›Paper›PMID 31222071›Full record

ArticleScientific reports2019

Anti-aging effects of long-term space missions, estimated by heart rate variability.

Kuniaki Otsuka, Germaine Cornelissen, Yutaka Kubo, Koichi Shibata, Koh Mizuno, Hiroshi Ohshima, Satoshi Furukawa, Chiaki Mukai

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

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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.

Kuniaki OtsukaExecutive Medical Center, Totsuka Royal Clinic, Tokyo Women's Medical University, Tokyo, Japan. frtotk99@ba2.so-net.ne.jp.
Germaine CornelissenHalberg Chronobiology Center, University of Minnesota, Minneapolis, Minnesota, USA.
Yutaka KuboDepartment of Medicine, Tokyo Women's Medical University, Medical Center East, Tokyo, Japan.
Koichi ShibataDepartment of Medicine, Tokyo Women's Medical University, Medical Center East, Tokyo, Japan.
Koh MizunoFaculty of Education, Tohoku Fukushi University, Miyagi, Japan.
Hiroshi OhshimaSpace Biomedical Research Group, Japan Aerospace Exploration Agency, Tokyo, Japan.
Satoshi FurukawaSpace Biomedical Research Group, Japan Aerospace Exploration Agency, Tokyo, Japan.
Chiaki MukaiSpace Biomedical Research Group, Japan Aerospace Exploration Agency, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reports that aging slows down in space prompted this investigation of anti-aging effects in humans by analyzing astronauts' heart rate variability (HRV). Ambulatory 48-hour electrocardiograms from 7 astronauts (42.1 ± 6.8 years; 6 men) 20.6 ± 2.7 days (ISS01) and 138.6 ± 21.8 days (ISS02) after launch were divided into 24-hour spans of relative lower or higher magnetic disturbance, based on geomagnetic measures in Tromso, Norway. Magnetic disturbances were significantly higher on disturbed than on quiet days (ISS01: 72.01 ± 33.82 versus 33.96 ± 17.90 nT, P = 0.0307; ISS02: 71.06 ± 51.52 versus 32.53 ± 27.27 nT, P = 0.0308). SDNNIDX was increased on disturbed days (by 5.5% during ISS01, P = 0.0110), as were other HRV indices during ISS02 (SDANN, 12.5%, P = 0.0243; Triangular Index, 8.4%, P = 0.0469; and TF-component, 17.2%, P = 0.0054), suggesting the action of an anti-aging or longevity effect. The effect on TF was stronger during light (12:00-17:00) than during darkness (0:00-05:00) (P = 0.0268). The brain default mode network (DMN) was activated, gauged by increases in the LF-band (9.7%, P = 0.0730) and MF1-band (9.9%, P = 0.0281). Magnetic changes in the magnetosphere can affect and enhance HRV indices in space, involving an anti-aging or longevity effect, probably in association with the brain DMN, in a light-dependent manner and/or with help from the circadian clock.

Indexed as

AgingAstronautsHeart RateLongevitySpace FlightAdultCircadian RhythmElectrocardiographyFemaleHumansMaleMiddle AgedTime Factors

Identifiers

PMID31222071
PMCPMC6586662

What OpenQuestion holds

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Registered trials

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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.