Gut Microbiome

Oligosaccharides from Dendrobium officinale Ameliorate Metabolic Dysfunction in db/db Mice by Modulating Gut Microbiota, Short-Chain Fatty Acid Production, and Intestinal Barrier Integrity.

Li Y, Gao T, et al. • Journal of agricultural and food chemistry • 2026

PubMed 42915820 DOI 10.1021/acs.jafc.6c08217
TL;DR

DOO1 may alleviate T2DM-related metabolic disorders by modulating gut microbiota and host metabolism, based on a study in db/db mice.

Key Findings

Results

DOO1 significantly improved glucose and lipid metabolic disorders in db/db mice.

  • The study evaluated DOO1, an oligosaccharide derived from Dendrobium officinale, in db/db mice, a model of type 2 diabetes.
  • The abstract reports that glucose and lipid metabolic disorders were improved, but gives no effect sizes or p-values.
Results

DOO1 reduced pancreatic and hepatic injury in db/db mice.

  • The abstract states that pancreatic and hepatic injury were reduced.
  • No quantitative histological or biochemical data are given in the abstract.
Results

DOO1 changed gut microbiota composition, increasing the abundance of Duncaniella, Muribaculum, and Paramuribaculum.

  • The changes were described as characteristic of the DOO1 effect on microbiota composition.
  • These changes accompanied the metabolic improvements.
Results

DOO1 elevated fecal short-chain fatty acid (SCFA) levels.

  • The SCFA increase occurred alongside the shifts in gut microbiota.
  • The abstract does not say which individual SCFAs changed or by how much.
Results

DOO1 improved intestinal barrier function, with reduced intestinal permeability and reduced inflammatory markers.

  • TNF-α, IL-1β, and LPS were reduced.
  • Intestinal permeability was reduced.
Results

DOO1 increased expression of the intestinal barrier proteins Muc2, ZO-1, and Claudin-1.

  • Muc2 is a mucin; ZO-1 and Claudin-1 are tight junction proteins.
  • This is consistent with the observed improvement in barrier function.
Results

DOO1 altered host metabolic profiles and regulated gut-derived hormones and appetite-related neuropeptides.

  • The abstract reports changes in host metabolic profiles.
  • It does not name the specific hormones, neuropeptides, or metabolites.
Conclusions

The authors conclude that DOO1 may alleviate T2DM-related metabolic disorders by modulating gut microbiota and host metabolism.

  • The conclusion is framed as a suggestion ('may alleviate').
  • The evidence comes from db/db mice, and the abstract does not report causal tests such as microbiota transplantation.

What This Means

This study tested an oligosaccharide (a short-chain sugar compound) from the herb Dendrobium officinale, called DOO1, in db/db mice. These mice are genetically prone to obesity and type 2 diabetes. The researchers wanted to know whether DOO1 could improve metabolic health and how it might work through the gut. Mice given DOO1 had better blood sugar and lipid control, and less damage to the pancreas and liver. They also had shifts in gut bacteria, including more Duncaniella, Muribaculum, and Paramuribaculum, and higher fecal levels of short-chain fatty acids, which are compounds produced when gut bacteria ferment fiber. The gut lining appeared healthier: permeability and inflammatory markers (TNF-α, IL-1β, LPS) were lower, and proteins that help seal the gut barrier (Muc2, ZO-1, Claudin-1) were higher. DOO1 also changed gut hormones and appetite-related signals. This research suggests that DOO1 may help with diabetes-related metabolic problems by supporting beneficial gut bacteria and a stronger gut barrier. The results come from mice, and the abstract gives no numerical effect sizes, so it is not known whether the same effects would occur in people. Human studies would be needed to confirm any benefit.

Have a question about this study?

Presence or severity of Hashimoto's thyroiditis does not influence basal calcitonin levels: observations from CROHT biobank.
Journal of endocrinological investigation • 2022

HT patients of all disease stages preserve Ct production as healthy individuals and there is no need for Ct measurements...
Approach to the Patient: Safety of Growth Hormone Replacement in Children and Adolescents.
The Journal of clinical endocrinology and metabolism • 2022

rhGH therapy has been used for more than 3 decades and data are largely reassuring, yet we still have much to learn abou...
Extended Absorption of Liothyronine from Poly-Zinc-Liothyronine: Results from a Phase 1, Double-Blind, Randomized, and Controlled Study in Humans.
Thyroid : official journal of the American Thyroid Association • 2022

PZL possesses the necessary properties to achieve a much improved T3 pharmacokinetic profile, with ~30% lower Cmax that...
Lipoprotein subtypes after testosterone therapy in transmasculine adolescents.
Journal of clinical lipidology • 2022

Testosterone appears to be a major contributor to differences in lipoprotein profiles, a surrogate for cardiovascular di...
Long-term testosterone undecanoate treatment in the elderly testosterone deficient male: An observational cohort study.
Andrology • 2022

Long-acting testosterone undecanoate treatment in elderly testosterone-deficient patients required more frequent dose ad...
Society for Endocrinology guidelines for testosterone replacement therapy in male hypogonadism.
Clinical endocrinology • 2022

The Society for Endocrinology commissioned a multidisciplinary guideline to provide all care providers with a comprehens...

Citation

Li Y, Gao T, Wang Z, Wang M, Liang X, Gao W, et al.. (2026). Oligosaccharides from Dendrobium officinale Ameliorate Metabolic Dysfunction in db/db Mice by Modulating Gut Microbiota, Short-Chain Fatty Acid Production, and Intestinal Barrier Integrity.. Journal of agricultural and food chemistry. https://doi.org/10.1021/acs.jafc.6c08217