Evidence map›Paper›PMID 41531729›Full record

ArticleiScience2026

Spaceflight alters the immune regulatory functions of neutrophil granulocytes on T lymphocytes.

Ece Tavukçuoğlu, Hamdullah Yanık, Hikmet Erhan Güven, Kerim Bora Yılmaz, Güneş Esendağlı

Abstract read
In one paragraph

Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

5 authors.

Ece TavukçuoğluDepartment of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Türkiye.
Hamdullah YanıkDepartment of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Türkiye.
Hikmet Erhan GüvenDepartment of General Surgery, University of Health Sciences, Etlik City Hospital, Ankara, Türkiye.
Kerim Bora YılmazDepartment of Medical and Surgical Research, Institute of Health Sciences, Hacettepe University, Ankara, Türkiye.
Güneş EsendağlıDepartment of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Türkiye.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spaceflight leads to dysregulation in the immune system. This study reports that neutrophils from astronauts undergo functional alterations and modulate T cell responses after spaceflight, analyzing samples from astronauts on an 18-day orbital mission (axiom mission 3, Ax-3) and a short suborbital flight. Normal-density neutrophils (NDN) and low-density neutrophils (LDN) were collected before and after the missions. Following the spaceflight, there was an increase in the LDN population. Post-flight neutrophils showed altered activation traits, including significantly upregulated surface markers like CD11b, CD80, CD86 on NDN, and CD11b, CD69 on LDN. Reactive oxygen species (ROS) and nitric oxide (NO) production capacity was also enhanced. Post-flight neutrophils, particularly the LDN subpopulation, significantly suppressed IL-2 and tended to suppress IFN-γ secretion, although T cell proliferation was not significantly changed. In conclusion, neutrophils in the circulation of astronauts soon after return to Earth displayed augmented suppressive capacities on T cells.

Indexed as

ImmunologyMolecular biologySpace sciences

Identifiers

PMID41531729
PMCPMC12794472

What OpenQuestion holds

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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.