Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury

GUO Xin; HU En; LUO Wei-kang; ZHANG Liang-lin; ZHU Wen-xin; YANG Xi-ya; LI Teng; TANG Tao; WANG Yang; LUO Jie-kun

doi:10.1007/s11655-025-3949-z

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Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury

Original Articles | Updated：2026-03-25

- Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury
- Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury
- Chinese Journal of Integrative Medicine 2026年32卷第4期页码：310-321
- Affiliations：
  
  1.Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha (410008), China
  2.The First Affiliated Hospital, Children's Medical Centre, Hengyang Medical School, University of South China, Hengyang, Hunan Province (421001), China
  3.National Administration of Traditional Chinese Medicine Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha (410008), China
  4.National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha (410008), China
  5.Hunan Key Laboratory of TCM Gan, Xiangya Hospital, Central South University, Changsha (410008), China
- Author bio：
  
  Prof. LUO Jie-kun, E-mail: luojk4314131@csu.edu.cn
- Funds：
  
  the Leadership Training Project of Hunan Traditional Chinese Medicine(2022-04);Fundamental Research Funds for the Central Universities of Central South University(2023ZZTS0564;2024ZZTS0928)
- DOI：10.1007/s11655-025-3949-z
  中图分类号：
- 录用：2025-04-28，
  
  网络首发：2025-09-12，
  
  纸质出版：2026-04
- Accepted：
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GUO Xin, HU En, LUO Wei-kang, 等. Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury[J]. Chinese Journal of Integrative Medicine, 2026,32(4):310-321.

GUO Xin, HU En, LUO Wei-kang, et al. Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury[J]. Chinese Journal of Integrative Medicine, 2026, 32(4): 310-321.
GUO Xin, HU En, LUO Wei-kang, 等. Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury[J]. Chinese Journal of Integrative Medicine, 2026,32(4):310-321. DOI： 10.1007/s11655-025-3949-z.

GUO Xin, HU En, LUO Wei-kang, et al. Both Gut Microbiota-Dependent and -Independent Constituents of Xinglou Chengqi Decoction Highlight Flavin Adenine Dinucleotide in Treatment of Severe Traumatic Brain Injury[J]. Chinese Journal of Integrative Medicine, 2026, 32(4): 310-321. DOI： 10.1007/s11655-025-3949-z.

摘要

Abstract

Objective:

To explore the effects of Xinglou Chengqi Decoction (XCD) on severe traumatic brain injury (sTBI) and its relationship with gut microbiota.

Methods:

C57BL/6J mice were randomly allocated into sham

controlled cortical impact (CCI)

and 3 doses of XCD (4.1

8.2

and 16.4 g/kg) groups by using a random number table

=7 per group. A CCI device was employed to establish the TBI model. XCD was administered intragastrically for 3 consecutive days. The effects of XCD on post-sTBI neurological deficits and histopathology were assessed. The contribution of gut microbiota to XCD-mediated improvement in sTBI was investigated using antibiotic-treated TBI mice. The gut microbiota-dependent mechanisms of XCD in sTBI were explored through 16S rDNA sequencing and serum metabolomics. The mechanisms underlying the absorbed ingredients of XCD in sTBI were examined using network pharmacology and metabolomics. Finally

mice were divided into sham

CCI

and flavin adenine dinucleotide (FAD)-treated groups

=10 per group. FAD was administered to sTBI mice via daily tail vein injection (830 μg/kg) for 3 consecutive days to evaluate and verify its therapeutic effect.

Results:

XCD significantly mitigated neurological impairments

neuronal damage

apoptosis

and blood-brain barrier disruption in CCI model mice (

0.05 or

0.01). The medium dose (8.2 g/kg) exhibited the greatest effect. The gut microbiota partly contributed to these protective effects. 16S rDNA sequencing indicated that XCD promoted beneficial gut microbiota. Metabolomic analysis demonstrated that XCD regulated serum metabolic profiles

particularly FAD. Network pharmacology combined with metabolomics analysis revealed that the gut microbiota-independent components of XCD also targeted FAD in TBI. FAD exerted neuroprotective effects

improved energy metabolism

and promoted angiogenesis following TBI (

0.05 or

0.01).

Conclusion:

XCD exerts neuroprotective effects on sTBI through both gut microbiota-dependent and -independent mechanisms

which highlight the therapeutic role of FAD.

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