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Quinone Ring

Dihydrotanshinone I

Antibacterial activity, inhibit hemolytic streptococcus, improve heart function. Dihydrotanshinone I is an extract from the rhizomes of Salvia miltiorrhiza. Salvia miltiorrhiza is the most commonly used Chinese medicine for promoting blood circulation and removing blood stasis. Related literature reports that Danshen has cardiovascular effects such as increasing coronary blood flow, dilating coronary arteries, and preventing myocardial ischemia. It is used to treat gastric cancer, liver cancer, cervical cancer and other diseases. Experiments show that dihydrotanshinone I (DHT) can effectively improve the general state of experimental ulcerative colitis mice, including weight loss, diarrhea, bloody stool, and mental state, significantly improve pathological changes, significantly reduce inflammation, and reduce plasma The level of inflammatory factors, etc., show that DHT has a significant anti-ulcerative colitis effect. The advantages of dihydrotanshinone I in the treatment of ulcerative colitis are rapid action, precise curative effect and good drug effect. In addition, dihydrotanshinone I is a natural ingredient extracted from Salvia miltiorrhiza. No obvious side effects and toxic reactions were observed during the experiment, which revealed that dihydrotanshinone I is a safe and effective anti-ulcerative colitis drug.


Hypocrellin A, a naturally occurring PKC inhibitor, has many biological and pharmacological properties, such as antitumour, antiviral, antibacterial, and antileishmanial activities. Hypocrellin A is a promising photosensitizer for anticancer photodynamic therapy (PDT)[1][2][3][4].

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Quinone rings are a class of chemical components with quinoid structure in traditional Chinese medicine. They are mainly divided into four types: benzoquinone, naphthoquinone, phenanthrenequinone, and anthraquinone. Anthraquinone and its derivatives are particularly important in Chinese medicine. Quinone rings are widely distributed in plants.
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