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Xu H, Liu Z, Xu W, Zhang Y. Beneficial In Vitro Effects of Polysaccharide and Non-Polysaccharide Components of Dendrobium huoshanense on Gut Microbiota of Rats with Type 1 Diabetes as Opposed to Metformin. Molecules 2024; 29:2791. [PMID: 38930856 PMCID: PMC11206810 DOI: 10.3390/molecules29122791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/07/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
The extract of Dendrobium huoshanense, a traditional Chinese medicinal and food homologous plant belonging to the family Orchidaceae, was previously reported to have hypoglycemic and antioxidant effects. In this study, the direct effects of polysaccharide (DHP) and non-polysaccharide (NDHP) components of D. huoshanense, as well as its water extract (DHWE) were compared with that of metformin (an antidiabetic drug) on the gut microbiota (collected from fecal flora) of rats with streptozotocin-induced type 1 diabetes (T1D) using an in vitro fermentation method. The results showed that DHWE, DHP, and NDHP reduced pH and increased bacterial proliferation and short-chain fatty acid (SCFA) content in fermentation broth. DHWE, DHP, NDHP and metformin promoted the production of acetic and propionic acid, acetic acid, propionic acid and butyric acid, and propionic acid, respectively. DHWE, DHP, and NDHP reduced the abundance of Proteobacteria (subdominant pathogenic bacteria) and increased the abundance of Firmicutes (dominant beneficial gut bacteria). NDHP also reduced the abundance of Bacteroidetes (beneficial and conditional pathogenic). Metformin increased the abundance of Proteobacteria and reduced the abundance of Firmicutes and Bacteroidetes. At the genus level, NDHP promoted the proliferation of Megamonas and Megasphaera and decreased harmful bacteria (e.g., Klebsiella), and DHP increased the abundance of Prevotellaceae (opportunistic and usually harmless). By contrast, metformin increased the abundance of harmful bacteria (e.g., Citrobacter) and reduced the abundance of beneficial bacteria (e.g., Oscillospira). Our study indicates that DHWE, DHP, and NDHP are potentially more beneficial than metformin on the gut microbiota of T1D rats in vitro.
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Affiliation(s)
- Haijun Xu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an 237012, China; (Z.L.); (W.X.); (Y.Z.)
- Engineering Laboratory of Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources in Anhui Province, Lu’an 237012, China
- Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, Lu’an 237012, China
| | - Zhu Liu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an 237012, China; (Z.L.); (W.X.); (Y.Z.)
| | - Wen Xu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an 237012, China; (Z.L.); (W.X.); (Y.Z.)
| | - Yafei Zhang
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an 237012, China; (Z.L.); (W.X.); (Y.Z.)
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Zheng H, Zhang C, Wang Q, Feng S, Fang Y, Zhang S. The impact of aging on intestinal mucosal immune function and clinical applications. Front Immunol 2022; 13:1029948. [PMID: 36524122 PMCID: PMC9745321 DOI: 10.3389/fimmu.2022.1029948] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/09/2022] [Indexed: 12/03/2022] Open
Abstract
Immune cells and immune molecules in the intestinal mucosa participate in innate and adaptive immunity to maintain local and systematic homeostasis. With aging, intestinal mucosal immune dysfunction will promote the emergence of age-associated diseases. Although there have been a number of studies on the impact of aging on systemic immunity, relatively fewer studies have been conducted on the impact of aging on the intestinal mucosal immune system. In this review, we will briefly introduce the impact of aging on the intestinal mucosal barrier, the impact of aging on intestinal immune cells as well as immune molecules, and the process of interaction between intestinal mucosal immunity and gut microbiota during aging. After that we will discuss potential strategies to slow down intestinal aging in the elderly.
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Affiliation(s)
- Han Zheng
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chi Zhang
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qianqian Wang
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shuyan Feng
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yi Fang
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China,*Correspondence: Shuo Zhang,
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Gao L, Wang F, Hou T, Geng C, Xu T, Han B, Liu D. Dendrobium huoshanense C.Z.Tang et S.J.Cheng: A Review of Its Traditional Uses, Phytochemistry, and Pharmacology. Front Pharmacol 2022; 13:920823. [PMID: 35903345 PMCID: PMC9315951 DOI: 10.3389/fphar.2022.920823] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/30/2022] [Indexed: 01/29/2023] Open
Abstract
Dendrobium huoshanense, a traditional medicinal and food homologous plant, belongs to the family Orchidaceae and has a long history of medicinal use. It is reported that the stem of D. huoshanense has a variety of bioactive ingredients such as polysaccharides, flavonoids, sesquiterpenes, phenols, etc. These bioactive ingredients make D. huoshanense remarkable for its pharmacological effects on anti-tumor, immunomodulation, hepatoprotective, antioxidant, and anticataract activities. In recent years, its rich pharmacological activities have attracted extensive attention. However, there is no systematic review focusing on the chemical compositions and pharmacological effects of D. huoshanense. Therefore, the present review aims to summarize current research on the chemical compositions and pharmacological activities of D. huoshanense. This study provides valuable references and promising ideas for further investigations of D. huoshanense.
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Affiliation(s)
- Leilei Gao
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
- *Correspondence: Leilei Gao, ; Bangxing Han, ; Dong Liu,
| | - Fang Wang
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
| | - Tingting Hou
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Chunye Geng
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Tao Xu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
| | - Bangxing Han
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
- *Correspondence: Leilei Gao, ; Bangxing Han, ; Dong Liu,
| | - Dong Liu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Province Traditional Chinese Medicine Resource Protection and Sustainable Utilization Engineering Laboratory, Lu’an, China
- *Correspondence: Leilei Gao, ; Bangxing Han, ; Dong Liu,
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