Volume 2021, Issue 1 2900060
Research Article
Open Access

Antimicrobial and Immunomodulatory Activity of Herb Extracts Used in Burn Wound Healing: “San Huang Powder”

Jia-Ru Wu

Jia-Ru Wu

Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

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Yu-Chu Lu

Yu-Chu Lu

Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

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Sung-Jen Hung

Sung-Jen Hung

Department of Dermatology, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

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Jung-Hsing Lin

Jung-Hsing Lin

Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

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Kai-Chih Chang

Kai-Chih Chang

Department of Laboratory of Medicine and Biotechnology, Tzu Chi University, Hualien 97004, Taiwan tcu.edu.tw

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Jhong-Kuei Chen

Jhong-Kuei Chen

Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

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Wan-Ting Tsai

Wan-Ting Tsai

Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

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Tsung-Jung Ho

Corresponding Author

Tsung-Jung Ho

Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 97004, Taiwan tcu.edu.tw

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Hao-Ping Chen

Corresponding Author

Hao-Ping Chen

Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan tzuchi.com.tw

Department of Biochemistry, Tzu Chi University, Hualien 97004, Taiwan tcu.edu.tw

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First published: 12 October 2021
Citations: 8
Academic Editor: Claudia Helena Pellizzon

Abstract

“San Huang Powder,” a nonsterile milled herb powder, is frequently used to treat burn wounds in traditional Chinese herbal medicine. However, treating a wound with a nonsterile dressing or reagent is not compatible with the current guidelines in modern medicine. Therefore, we investigated the bactericidal and anti-inflammatory activities of four herb extracts used in “San Huang Powder” in vitro. Meanwhile, an in vivo porcine model with superficial second-degree burns was used for the experiments since the size and skin composition of pigs are the closest to that of the human body. The minimal bactericidal concentration (MBC) of the herb extracts was determined. The in vitro assay indicated that Rhubarb and Phellodendron bark extracts decreased the levels of inflammatory cytokines, IL-8, and GM-CSF on LPS-induced HMEC-1 cells. In accordance with this result, the histopathological evaluation results showed that the efficacy of “San Huang Powder” containing both herb materials was much better than the group without Rhubarb. Our results not only provide a basis to understand why “San Huang Powder” has been used to clinically treat wounds without sterilization directly since ancient times but also show the advantages of using multiple herb materials simultaneously on wound sites to prevent infection during treatment. Rhubarb is the recommended ingredient involved in the preparation of “San Huang Powder” to ensure the healing efficacy of burn wounds.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability

The data obtained in this research can be made available from the corresponding author upon request or from the indicated sources.

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