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Topical gel containing phenolic-rich extract from Ipomoea pes-capre leaf (Convolvulaceae) has anti-inflammatory, wound healing, and antiophidic properties. Biomed Pharmacother 2022; 149:112921. [DOI: 10.1016/j.biopha.2022.112921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 11/18/2022] Open
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Ma Q, Lu Y, Deng Y, Hu X, Li W, Jia H, Guo Y, Shi X. Optimization for ultrasonic-microwave synergetic extraction of total iridoid glycosides and screening of analgesic and anti-inflammatory active fractions from patrinia scabra Bunge (Valerianaceae). BMC Complement Med Ther 2022; 22:7. [PMID: 34983472 PMCID: PMC8728952 DOI: 10.1186/s12906-021-03489-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 12/10/2021] [Indexed: 11/21/2022] Open
Abstract
Background Patrinia scabra Bunge is a well-known herbal medicine for its favorable treatment on inflammatory diseases owing to its effective ingredients, in which iridoid glycoside plays an extremely significant role. This article aimed to improve the content of total iridoid glycosides in crude extract through a series optimization of extraction procedure. Moreover, considering that both pain and inflammation are two correlated responses triggered in response to injury, irritants or pathogen, the article investigated the anti-inflammatory and analgesic activities of P. scabra to screen out the active fraction. Method P. scabra was extracted by ultrasonic-microwave synergistic extraction (UMSE) to obtain total iridoid glycosides (PSI), during which a series of conditions were investigated based on single-factor experiments. The extraction process was further optimized by a reliable statistical method of response surface methodology (RSM). The elution fractions of P. scabra extract were prepared by macroporous resin column chromatography. Through the various animal experiment including acetic acid-induced writhing test, formalin induced licking and flinching, carrageenan-induced mice paw oedema test and xylene-induced ear edema in mice, the active fractions with favorable analgesic and anti-inflammatory effect were reasonably screen out. Results The content of PSI could reach up to 81.42 ± 0.31 mg/g under the optimum conditions as follows: ethanol concentration of 52%, material-to-liquid ratio of 1:18 g/mL, microwave power at 610 W and extraction time of 45 min. After gradient elution by the macroporous resin, the content of PSI increased significantly. Compared with other concentrations of elution liquid, the content of PSI in 30 and 50% ethanol eluate was increased to reach 497.65 and 506.90 mg/g, respectively. Owing to the pharmacology experiment, it was reasonably revealed that 30 and 50% ethanol elution fractions of P. scabra could relieve pain centrally and peripherally, exhibiting good analgesic and anti-inflammatory activities. Conclusion Patrinia scabra possessed rich iridoids and exhibited significant analgesic and anti-inflammatory activities.
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Affiliation(s)
- Quhuan Ma
- School of Pharmaceutical Science, Gansu University of Traditional Chinese Medicine, Lanzhou, 730000, Gansu, China.,Gansu Provincial Academy of Medical Sciences, Lanzhou, 730000, Gansu, China
| | - Yanmei Lu
- School of Pharmaceutical Science, Gansu University of Traditional Chinese Medicine, Lanzhou, 730000, Gansu, China.,Gansu Provincial Academy of Medical Sciences, Lanzhou, 730000, Gansu, China
| | - Yi Deng
- School of Pharmaceutical Science, Gansu University of Traditional Chinese Medicine, Lanzhou, 730000, Gansu, China.
| | - Xiaodong Hu
- Laboratory of Pharmacology, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Wanyu Li
- School of Pharmaceutical Science, Gansu University of Traditional Chinese Medicine, Lanzhou, 730000, Gansu, China.,Gansu Provincial Academy of Medical Sciences, Lanzhou, 730000, Gansu, China
| | - Hongzhen Jia
- Gansu Light Industry Science Research Institute Co., Ltd, Lanzhou, 730000, Gansu, China
| | - Yuer Guo
- Gansu Provincial Academy of Medical Sciences, Lanzhou, 730000, Gansu, China
| | - Xiaofeng Shi
- Gansu Provincial Academy of Medical Sciences, Lanzhou, 730000, Gansu, China.
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