Trial reportPloS one2013
Changes of cytokines during a spaceflight analog--a 45-day head-down bed rest.
Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.
- Effects of isolated, confined and extreme environments on parameters of the immune system - a systematic review.Frontiers in immunology · 2025Pooled it
- Effects of 60-day bed rest with and without exercise on cellular and humoral immunological parameters.Cellular & molecular immunology · 2015Trial
- Physical exercise protects cardiovascular fitness in long-term spaceflight: what have we learned?Science China. Life sciences · 2026Review
- Spaceflight exposome/microgravity effects on the psychoimmunoneuroendocrine system.NPJ microgravity · 2025Review
- [Potential biological mechanisms underlying spaceflight-induced depression symptoms in astronauts].Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2025Review
- Nutraceuticals as Modulators of Immune Function: A Review of Potential Therapeutic Effects.Preventive nutrition and food science · 2023Review
- Mitochondria-Targeted Human Catalase in the Mouse Longevity MCAT Model Mitigates Head-Tilt Bedrest-Induced Neuro-Inflammation in the Hippocampus.Life (Basel, Switzerland) · 2022Article
- B-Cell Homeostasis Is Maintained During Two Months of Head-Down Tilt Bed Rest With or Without Antioxidant Supplementation.Frontiers in immunology · 2022Article
- Mechano-Immunomodulation in Space: Mechanisms Involving Microgravity-Induced Changes in T Cells.Life (Basel, Switzerland) · 2021Review
- Overexpression of catalase in mitochondria mitigates changes in hippocampal cytokine expression following simulated microgravity and isolation.NPJ microgravity · 2021Article
- Gravitational stress during parabolic flights reduces the number of circulating innate and adaptive leukocyte subsets in human blood.PloS one · 2018Article
- Effect of Long-Term Simulated Microgravity on Immune System and Lung Tissues in Rhesus Macaque.Inflammation · 2017Article
- Article
- Serum miRNAs miR-23a, 206, and 499 as Potential Biomarkers for Skeletal Muscle Atrophy.BioMed research international · 2017Article
- Circulating microRNAs Correlated with Bone Loss Induced by 45 Days of Bed Rest.Frontiers in physiology · 2017Article
- Towards human exploration of space: The THESEUS review series on immunology research priorities.NPJ microgravity · 2016Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Spaceflight is associated with deregulation in the immune system. Head-down bed rest (HDBR) at -6° is believed to be the most practical model for examining multi-system responses to microgravity in humans during spaceflight. In the present study, a 45-day HDBR was performed to investigate the alterations in human immune cell distributions and their functions in response to various stimuli. The effect of countermeasure, Rhodiola rosea (RR) treatment, was also examined. A significant decrease of interferon-γ (IFN-γ) and interleukin-17 (IL-17) productions by activated T cells, increase of IL-1β and IL-18 by activated B and myeloid cells were observed during HDBR. The upregulation of serum cortisol was correlated with the changes of IL-1 family cytokines. In addition, a significant increase of memory T and B cell and regulatory T cells (Treg) were also detected. The uptake of RR further decreased IFN-γ level and slowed down the upregulation of IL-1 family cytokines. These data suggest that for prolonged HDBR and spaceflight, the decreased protective T cell immunity and enhanced proinflammatory cytokines should be closely monitored. The treatment with RR may play an important role in suppressing proinflammatory cytokines but not in boosting protective T cell immunity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.