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Synchronous dynamic research on respiratory and intestinal microflora of chronic bronchitis rat model

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Abstract

Objectives

To investigate the mechanism of the Chinese medicine theory that Fei (Lung) and Dachang (Large Intestine) are exteriorly and interiorly related via synchronous observation on the dynamic changes of the respiratory and intestinal microflora.

Methods

Forty specific pathogen free Sprague-Dawley rats were selected and randomly divided into blank (10 rats) and chronic bronchitis model groups (30 rats). The blank group rats were put into the smoke-free environment and the model group rats were put into the smoke environment in order to establish pulmonary disease (chronic bronchitis) model. Then the corresponding changes of the respiratory and intestinal microflflora of the model on 20th, 50th and 70th days were synchronously observed.

Results

The respiratory tract microflflora showed an increase in the total aerobic and Staphylococcus aureus and reduced anaerobic amount signifificantly on 20th day in the respiratory tract microflflora (P<0.05 or 0.01). On 50th day, total aerobic, total anaerobic amount and bififidobacterium signifificantly increased (P<0.05). On 70th day, Staphylococcus aureus reduced and lactobacillus increased signifificantly (P<0.01). The intestinal microflflora showed an increase in the total aerobic, Clostridium perfringens, enterobacter and enterococcus significantly increased on 20th day (P<0.05 or 0.01). Staphylococcus aureus on 50th day increased significantly (P<0.05). Total aerobic and enterococcus increased, total anaerobic and Clostridium perfringens reduced signifificantly on 70th day (P<0.05 or 0.01).

Conclusion

The microecosystem of respiratory tract and intestine of rat model during the pathological process showed a dynamic disorder, indicating an interaction between the lung and large intestine which may be one of the connotations as they exteriorly and interiorly related.

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Authors and Affiliations

  1. College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China

    Xiu-li Zheng, Yu Yang, Bao-jia Wang, Ju Wang & Hong-qu Tang

Authors
  1. Xiu-li Zheng
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  2. Yu Yang
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  3. Bao-jia Wang
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  4. Ju Wang
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  5. Hong-qu Tang
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Corresponding author

Correspondence to Yu Yang.

Additional information

Supported by the National Basic Research Program of China (973 Program, No. 2009CB522706)

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Zheng, Xl., Yang, Y., Wang, Bj. et al. Synchronous dynamic research on respiratory and intestinal microflora of chronic bronchitis rat model. Chin. J. Integr. Med. 23, 196–200 (2017). https://doi.org/10.1007/s11655-016-2731-7

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  • DOI: https://doi.org/10.1007/s11655-016-2731-7

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