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Zou Y, Yu C, Huang Q, Tan X, Tan X, Zhu X, Yi D, Mao J. Investigating the active chemical constituents and pharmacology of Nanocnide lobata in the treatment of burn and scald injuries. PLoS One 2023; 18:e0287147. [PMID: 37310979 DOI: 10.1371/journal.pone.0287147] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 05/31/2023] [Indexed: 06/15/2023] Open
Abstract
OBJECTIVE To identify the most effective fraction of Nanocnide lobata in the treatment of burn and scald injuries and determine its bioactive constituents. METHODS Chemical identification methods were used to analyze solutions extracted from Nanocnide lobata using petroleum ether, ethyl acetate, n-butanol using a variety of color reactions. The chemical constituents of the extracts were identified by ultra-performance liquid chromatography (UPLC)-mass spectrometry (MS). A total of 60 female mice were randomly divided into the following 6 groups: the petroleum ether extract-treated group; the ethyl acetate extract-treated group; the n-butanol extract-treated group; the model group; the control group; and the positive drug group. The burn/scald model was established using Stevenson's method. At 24 hours after modeling, 0.1 g of the corresponding ointment was evenly applied to the wound in each group. Mice in the model group did not undergo treatment, while those in the control group received 0.1 g of Vaseline. Wound characteristics, including color, secretions, hardness, and swelling, were observed and recorded. Photos were taken and the wound area calculated on the 1st, 5th, 8th, 12th, 15th, 18th and 21st days. Hematoxylin-eosin (HE) staining was utilized to observe the wound tissue of mice on the 7th, 14th, and 21st days. An enzyme-linked immunosorbent assay (ELISA) kit was used to measure the expression of tumor necrosis factor (TNF)-α, interleukin (IL)-10, vascular endothelial growth factor (VEGF) and transforming growth factor (TGF)-β1. RESULTS The chemical constituents of Nanocnide lobata mainly include volatile oils, coumarins, and lactones. UPLC-MS analysis revealed 39 main compounds in the Nanocnide lobata extract. Among them, ferulic acid, kaempferitrin, caffeic acid, and salicylic acid have been confirmed to exhibit anti-inflammatory and antioxidant activity related to the treatment of burns and scalds. HE staining revealed a gradual decrease in the number of inflammatory cells and healing of the wounds with increasing time after Nanocnide lobata extract administration. Compared with the model group, the petroleum ether extract-treated group showed significant differences in the levels of TNF-α (161.67±4.93, 106.33±3.21, 77.67±4.04 pg/mL) and IL-10 (291.77±4.93, 185.09±9.54, 141.33±1.53 pg/mL) on the 7th, 14th, and 21st days; a significant difference in the content of TGF-β1 (75.68±3.06 pg/mL) on the 21st day; and a significant difference in the level of VEGF (266.67±4.73, 311.33±10.50 pg/mL) on the 7th and 14th days respectively. CONCLUSION Petroleum ether Nanocnide lobata extract and the volatile oil compounds of Nanocnide lobata might be effective drugs in the treatment of burn and scald injuries, as they exhibited a protective effect on burns and scalds by reducing the expression of TNF-α, IL-10 and TGF-β1 and increasing the expression of VEGF. In addition, these compounds may also exert pharmacological effects that promote wound tissue repair, accelerate wound healing, and reduce scar tissue proliferation, inflammation and pain.
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Affiliation(s)
- Yanlin Zou
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- School of Pharmacy, Chongqing Medical and Pharmaceutical College, 401331, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Cao Yu
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Qian Huang
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Xiaorong Tan
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Xiaoyan Tan
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Xiaolong Zhu
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Dongyang Yi
- School of Pharmacy, Three Gorges Medical College, 404120, Chongqing, China
- Chongqing Anti-tumor Natural Drug Engineering Technology Research Center, Three Gorges Medical College, 404120, Chongqing, China
| | - Jingxin Mao
- School of Pharmacy, Chongqing Medical and Pharmaceutical College, 401331, Chongqing, China
- College of Pharmaceutical Sciences, Southwest University, 400715, Chongqing, China
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Rosenthal JJ, Hsieh IM, Malmali MM. ZSM-5/Thermoplastic Polyurethane Mixed Matrix Membranes for Pervaporation of Binary and Ternary Mixtures of n-Butanol, Ethanol, and Water. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin J. Rosenthal
- Department of Chemical Engineering, Texas Tech University, 807 Canton Avenue, Lubbock, Texas 79409, United States
| | - I-Min Hsieh
- Department of Chemical Engineering, Texas Tech University, 807 Canton Avenue, Lubbock, Texas 79409, United States
| | - Mahdi M. Malmali
- Department of Chemical Engineering, Texas Tech University, 807 Canton Avenue, Lubbock, Texas 79409, United States
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Impacts of Initial Sugar, Nitrogen and Calcium Carbonate on Butanol Fermentation from Sugarcane Molasses by Clostridium beijerinckii. ENERGIES 2020. [DOI: 10.3390/en13030694] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Low-cost nitrogen sources, i.e., dried spent yeast (DSY), rice bran (RB), soybean meal (SM), urea and ammonium sulfate were used for batch butanol fermentation from sugarcane molasses by Clostridium beijerinckii TISTR 1461 under anaerobic conditions. Among these five low-cost nitrogen sources, DSY at 1.53 g/L (nitrogen content equal to that of 1 g/L of yeast extract) was found to be the most suitable. At an initial sugar level of 60 g/L, the maximum butanol concentration (PB), productivity (QB) and yield (YB/S) were 11.19 g/L, 0.23 g/L·h and 0.31 g/g, respectively. To improve the butanol production, the concentrations of initial sugar, DSY and calcium carbonate were varied using response surface methodology (RSM) based on Box–Behnken design. It was found that the optimal conditions for high butanol production were initial sugar, 50 g/L; DSY, 6 g/L and calcium carbonate, 6.6 g/L. Under these conditions, the highest experimental PB, QB and YB/S values were 11.38 g/L, 0.32 g/L·h and 0.40 g/g, respectively with 50% sugar consumption (SC). The PB with neither DSY nor CaCO3 was only 8.53 g/L. When an in situ gas stripping system was connected to the fermenter to remove butanol produced during the fermentation, the PB was increased to 15.33 g/L, whereas the YB/S (0.39 g/g) was not changed. However, the QB was decreased to 0.21 g/L·h with 75% SC.
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Yan Z, Du C, Chen Y, Luo G. A Novel Hollow-Fiber Membrane Embedded Co-axial Microdevice for Simultaneous Extraction and Stripping. SOLVENT EXTRACTION AND ION EXCHANGE 2019. [DOI: 10.1080/07366299.2019.1691301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Zifei Yan
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Chencan Du
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Yuchao Chen
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Guangsheng Luo
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, China
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