# Gut bacteriome alterations during high altitude exposure: a comprehensive analysis of different species

**Authors:** Xinxin Yin, Jin Zeng, Zhiqi Li, Siai Chen, Changpeng Xie, Xuejing Li, Liping Zhang, Yuanming Pan, Juan An

PMC · DOI: 10.3389/fmicb.2026.1762563 · Frontiers in Microbiology · 2026-02-18

## TL;DR

This study reviews how gut bacteria change in different species when exposed to high-altitude hypoxia and identifies key bacteria that may help hosts adapt.

## Contribution

The paper provides a comprehensive analysis of gut bacteriome alterations across species in high-altitude environments.

## Key findings

- Gut bacteriome diversity and composition vary in different highland hypoxic environments.
- A core bacteriome associated with host adaptation to hypoxia was identified.
- Multiple factors influence gut bacteriome dynamics during high-altitude exposure.

## Abstract

With the increase of high-altitude sojourn population, more and more studies on hypoxia have been conducted, but the associated changes in gut bacteriome in different hypoxic environments need to be further investigated. Gut bacteriome plays an important role in host adaptation to high-altitude hypoxia, but the contribution of gut bacteriome in high-altitude hypoxia adaptation is still controversial and may be influenced by multiple factors. In this study, we reviewed the changes in diversity and composition of the gut bacteriome of different populations of animals in different highland hypoxic environments, clarified the dynamics of the gut bacteriome during exposure to high altitude, identified the core bacteriome that may contribute to host adaptation to hypoxic environments, and comprehensively considered the effects of multiple factors on the gut bacteriome.

## Full-text entities

- **Diseases:** infection (MESH:D007239), colitis (MESH:D003092), immune dysfunction (MESH:D007154), gastrointestinal disorders (MESH:D005767), CRC (MESH:D015179), rheumatoid arthritis (MESH:D001172), ulcerative colitis (MESH:D003093), intestinal damage (MESH:D007410), appetite (MESH:D001068), bacterial (MESH:D001424), irritable bowel syndrome (MESH:D043183), depression (MESH:D003866), anxiety (MESH:D001007), anorexia (MESH:D000855), reduced locomotor (MESH:D001523), Dysbiosis (MESH:D064806), AMS (MESH:D000532), diabetes (MESH:D003920), inflammation (MESH:D007249), gastrointestinal symptom (MESH:D012817), PDD-NOS (MESH:D002659), vomiting (MESH:D014839), Hypoxia (MESH:D000860), chronic fatigue syndrome (MESH:D015673), diarrhea (MESH:D003967), weight gain (MESH:D015430), obese (MESH:D009765), hypoxic (MESH:D002534), nausea (MESH:D009325), multiorgan dysfunction syndrome (MESH:D009102), autoimmune (MESH:D001327)
- **Chemicals:** propionate (MESH:D011422), carbohydrate (MESH:D002241), butyrate (MESH:D002087), oligofructose (MESH:C120489), 2-AG (-), bile acids (MESH:D001647), glucose (MESH:D005947), SCFAs (MESH:D005232), acylglycerol (MESH:D005989), acetate (MESH:D000085), polyphenols (MESH:D059808), arabinoxylan (MESH:C085118), prebiotics (MESH:D056692), 2-PG (MESH:C114956), carbon (MESH:D002244), lactic acid (MESH:D019344), polysaccharides (MESH:D011134), 2-OG (MESH:C505247), salt (MESH:D012492), sugar (MESH:D000073893), fiber (MESH:D004043), Oxygen (MESH:D010100), succinate (MESH:D019802)
- **Species:** Mycobacterium (genus) [taxon 1763], Homo sapiens (human, species) [taxon 9606], Alistipes shahii (species) [taxon 328814], Rattus norvegicus (brown rat, species) [taxon 10116], Bacteroides (genus) [taxon 816], Cryptomys hottentotus (African mole rat, species) [taxon 10175], Bilophila (genus) [taxon 35832], Macaca mulatta (rhesus macaque, species) [taxon 9544], Akkermansia muciniphila (species) [taxon 239935], Blautia coccoides [taxon 1532], Alistipes finegoldii (species) [taxon 214856], Alistipes senegalensis (species) [taxon 1288121], Gallus gallus (bantam, species) [taxon 9031], Lepidosauria (lepidosaurs, class) [taxon 8504], Alistipes ihumii (species) [taxon 1470347], Ochotonidae (pikas, family) [taxon 9976], Bacillota (clostridial firmicutes, phylum) [taxon 1239], Alistipes onderdonkii (species) [taxon 328813], Equus asinus (African ass, species) [taxon 9793], Lactobacillus (genus) [taxon 1578], Prevotella (genus) [taxon 838], Alistipes putredinis (species) [taxon 28117], Mus musculus (house mouse, species) [taxon 10090], Alistipes indistinctus (species) [taxon 626932], Akkermansia glycaniphila (species) [taxon 1679444], Agathobacter rectalis (species) [taxon 39491], Sus scrofa (pig, species) [taxon 9823], Alistipes massiliensis (species) [taxon 265312], Alistipes inops (species) [taxon 1501391]
- **Cell lines:** BALB/c — Mus musculus (Mouse), Spontaneously immortalized cell line (CVCL_0184), C57BL/6J — Mus musculus (Mouse), Transformed cell line (CVCL_C0MW)

## Full text

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## Figures

4 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12958361/full.md

## References

129 references — full list in the complete paper: https://tomesphere.com/paper/PMC12958361/full.md

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Source: https://tomesphere.com/paper/PMC12958361