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Muhire J, Sun X, Zhang FX, Huang XY, Di DL. Recent trends in multidimensional countercurrent chromatography. J Sep Sci 2024; 47:e2300768. [PMID: 38356228 DOI: 10.1002/jssc.202300768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 02/16/2024]
Abstract
Countercurrent chromatography (CCC) is a potent separation approach known for its remarkable efficiency and capacity in preparation. It's applied as a substitute or combined with different chromatographic techniques, resulting in its rebranding as multidimensional CCC (MDCCC). Numerous essential mixtures from natural products contain hundreds or thousands of distinct components of importance. These mix types are too complicated to separate in any reasonable time using a single CCC dimension. However, if a multidimensional technique is utilized, where a complex mixture is separated by an initial dimension, smaller fractions of that separation are gathered. Each fraction is studied individually; complex mixes can be resolved relatively quickly. Thus, several MDCCC separation features have been studied to demonstrate their advantages, limitations, and prospective capacity to separate exceedingly complex mixtures. In this review, MDCCC aspects, including principles, multiple columns system, multilayer coil J-type, on-line monitoring system, and applications, have been thoroughly_explored.
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Affiliation(s)
- Jules Muhire
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xiao Sun
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Fu-Xin Zhang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xin-Yi Huang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Duo-Long Di
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory of Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
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Zhu H, Geng Y, Ding S, Li E, Li L, Wang X, Yu J. Separation and purification of alkaloids and phenolic acids from Phellodendron chinense by pH-zone refining and online-storage inner-recycling counter-current chromatography. J Sep Sci 2023; 46:e2300497. [PMID: 37737621 DOI: 10.1002/jssc.202300497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023]
Abstract
In this work, eight compounds from Phellodendron chinense were separated and purified by pH-zone refining counter-current chromatography and traditional counter-current chromatography coupled with online-storage inner-recycling counter-current chromatography (IRCCC). The pH-zone-refining mode was adopted for separating 2.0 g of crude extract with the solvent system of chloroform-methanol-water (4:3:3, v/v), in which 10 mM hydrochloric acid and 10 mM triethylamine were added in the stationary and mobile phases, respectively. Meanwhile, traditional counter-current chromatography coupled with online-storage IRCCC separation was performed by the solvent system of n-hexane-ethyl acetate-methanol-water (5:5:2:8, v/v). Finally, eight compounds, including six alkaloids as 6-methylpiperidin-2-one(1), isoplatydesmine(4), berlambine(5), epiberberine(6), palmatine(7), berberine(8) and two phenolic acids as ferulic acid(2), isoferulic acid(3), were successfully obtained using these three different CCC modes with the purities over 95.0%.
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Affiliation(s)
- Heng Zhu
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Yanling Geng
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Shangzhi Ding
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Enxia Li
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Lili Li
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Xiao Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Jinqian Yu
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
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Aziz S, Akhter F, Hussain H, Liu J, Yan H, Cui L, Chen Q, Cheng W, Wang D, Wang X. Application of one-step inner-recycling counter-current chromatography for the preparative separation and purification of chemical constituents from the rhizome of Bergenia ciliate (haw.) Sternb. J Sep Sci 2023; 46:e2300306. [PMID: 37654052 DOI: 10.1002/jssc.202300306] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 09/02/2023]
Abstract
Bergenia ciliata (haw.) Sternb, the renowned pharmaceutical plant in Jammu and Kashmir of Pakistan, is widely applied in treating different illnesses including diabetes, diarrhea, and vomiting. This work employed an efficient one-step inner-recycling counter-current chromatography for preparative separating and purifying compounds with similar partition coefficients from the rhizome of Bergenia ciliate (haw.). Five compounds, including quercetin rhamnodiglucoside (1), quercetin-3-O-rutinoside (2), bergenine (3), kaempferol (4), and palmatic acid (5), were successfully separated using the optimized biphasic solvent system that contained ter-butylmetylether/n-butanol/acetonitrile/water (2:2:1:5, v/v) with the purities over 98%. Mass spectrometry and nuclear magnetic resonance were conducted for structural identification. As a result, our proposed strategy might be applied in separating compounds with similar partition coefficients, which was advantageous with regard to the less solvent and time consumption, and the increased number of theoretical plates.
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Affiliation(s)
- Shahid Aziz
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
- Department of Chemistry, Mirpur University of Science and Technology, Mirpur, Pakistan
- Biological Engineering Technology Innovation Center of Shandong Province, Shandong Academy of Sciences, Heze Branch of Qilu University of Technology, Heze, China
| | - Faheem Akhter
- Department of Chemistry, Mirpur University of Science and Technology, Mirpur, Pakistan
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Jiguo Liu
- Heze Peony Development Service Center, Heze, China
| | - Huijiao Yan
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Li Cui
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Qixu Chen
- Biological Engineering Technology Innovation Center of Shandong Province, Shandong Academy of Sciences, Heze Branch of Qilu University of Technology, Heze, China
| | - Wei Cheng
- Biological Engineering Technology Innovation Center of Shandong Province, Shandong Academy of Sciences, Heze Branch of Qilu University of Technology, Heze, China
| | - Daijie Wang
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
- Biological Engineering Technology Innovation Center of Shandong Province, Shandong Academy of Sciences, Heze Branch of Qilu University of Technology, Heze, China
| | - Xiao Wang
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
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Dong X, Huang H, Wang R, Luo S, Mi Y, Pan Y, Shen W, Cui J, Hu X, Cheng X, Shi X, Wang H. High-speed counter-current chromatography assisted preparative isolation of phenolic compounds from the flowers of Chrysanthemum morifolium cv. Fubaiju. J Sep Sci 2023; 46:e2300172. [PMID: 37528737 DOI: 10.1002/jssc.202300172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/29/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023]
Abstract
Chrysanthemum morifolium cv. Fubaiju is rich in phenolic compounds with various benefits such as anti-inflammatory, antioxidant, and cardiovascular protection. In this study, 12 phenolic compounds, including five flavonoid glycosides and seven quinic acid derivatives, were successfully separated from the flowers of Chrysanthemum morifolium cv. Fubaiju by high-speed counter-current chromatography and preparative high-performance liquid chromatography. Ethyl acetate-n-butanol-acetonitrile-water-acetic acid (5:0.5:2.5:5:0.25, v/v/v/v/v) was selected as solvent system to separate six fractions from the flowers of Chrysanthemum morifolium cv. Fubaiju, and 20% aqueous acetonitrile (containing 0.1% formic acid) was chosen to be the elution solvent in preparative high-performance liquid chromatography for purifying the fractions above. Luteolin-7-O-β-D-glucoside (1), luteolin-7-O-β-D-glucuronide (2), apigenin-7-O-β-D-glucoside (3), luteolin-7-O-β-D-rutinoside (4), diosmetin-7-O-β-D-glucoside (5), chlorogenic acid (6), 1,5-dicaffeoylquinic acid (7), 1,4-dicaffeoylquinic acid (8), 3,4-dicaffeoylquinic acid (9), 3,4-dicaffeoyl-epi-quinic acid (10), 3,5-dicaffeoylquinic acid (11), and 4,5-dicaffeoylquinic acid (12) were isolated with purities all above 95%, respectively. In addition, all isolates were evaluated for their protective effects on H2 O2 -induced oxidative damage in adult retinal pigment epithelial cells.
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Affiliation(s)
- Xiaowei Dong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Hongping Huang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Rong Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Shiyu Luo
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Yahui Mi
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Yuqing Pan
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Wei Shen
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Jiamin Cui
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Xiaolong Hu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Xuexiang Cheng
- Hubei Fenghuang Baiyunshan Pharmaceutical Co., Ltd., Macheng, P. R. China
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, P. R. China
| | - Xinhong Shi
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Hao Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
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Sun X, Xu L, Yan H, Li P, Hussain H, Liu J, Zhang J, Wang D. Isolation and purification of high polar glycosides from aerial parts of Gynostemma pentaphyllum (Thunb.) Makino by linear gradient counter-current chromatography coupled with inner-recycling mode. J Sep Sci 2023; 46:e2300238. [PMID: 37548129 DOI: 10.1002/jssc.202300238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/25/2023] [Accepted: 07/25/2023] [Indexed: 08/08/2023]
Abstract
Gynostemma pentaphyllum (Thunb.) Makino represents the popular health food and supplemental product with broad pharmacological activities. The highly polar glycosides, including flavonoids and saponins, are major effective active components that contain diverse sugar positions and quantities, which result in diverse chemical polarities, making it challenging to separate and isolate these components. The present work described the rapid and efficient linear gradient counter-current chromatography to preparatively separate glycosides from aboveground parts of G. pentaphyllum. Besides, the ethyl acetate and n-butanol binary mobile phases were achieved through adjusting associated proportions. Six glycosides, including quercetin-3-O-neohesperidoside (1), kaempferol-3-O-robinobioside (2), kaempferol-3-O-neohesperidoside (3), gypenoside LVI (4), ginsenoside Rb3 (5), and gypenoside XLVI (6), were isolated at the purities greater than 98%. Moreover, electrospray ionization mass spectrometry and nuclear magnetic resonance tandem mass spectrometry were conducted for structural identification. According to our findings, the established linear gradient counter-current chromatography was an efficient approach to separate the highly polar glycosides from aboveground parts of G. pentaphyllum. Our proposed strategy can be used to separate active compounds from other complex natural products.
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Affiliation(s)
- Xuan Sun
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, P. R. China
- Biological Engineering Technology Innovation Center, Heze Branch of Qilu University of Technology (Shandong Academy of Sciences), Heze, P. R. China
| | - Li Xu
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, P. R. China
| | - Huijiao Yan
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Peng Li
- Shandong Jinsheng Biological Technology Co. Ltd., Linyi, P. R. China
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle/Saale, Germany
| | - Jiguo Liu
- Heze Peony Development Service Center, Heze, P. R. China
| | - Jinjie Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, P. R. China
| | - Daijie Wang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, P. R. China
- Biological Engineering Technology Innovation Center, Heze Branch of Qilu University of Technology (Shandong Academy of Sciences), Heze, P. R. China
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Ning F, Zhu H, Yan H, Liu J, Aziz S, Hussain H, Song X, Xie L, Meng Z, Cao G, Wang D. Separation and purification of quinolyridine alkaloids from seeds of Thermopsis lanceolata R. Br. by conventional and pH-zone-refining counter-current chromatography. J Sep Sci 2023; 46:e2300053. [PMID: 37376800 DOI: 10.1002/jssc.202300053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 05/03/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023]
Abstract
In this work, the preparative separation of quinolyridine alkaloids from seeds of T. lanceolata by conventional and pH-zone-refining counter-current chromatography. Traditional counter-current chromatography separation was performed by a flow-rate changing strategy with a solvent system of ethyl acetate-n-butanol-water (1:9:10, v/v) and 200 mg sample loading. Meanwhile, the pH-zone-refining mode was adopted for separating 2.0 g crude alkaloid extracts with the chloroform-methanol-water (4:3:3, v/v) solvent system using the stationary and mobile phases of 40 mM hydrochloric acid and 10 mM triethylamine. Finally, six compounds, including N-formylcytisine (two conformers) (1), N-acetycytisine (two conformers) (2), (-)-cytisine (3), 13-β-hydroxylthermopsine (4), N-methylcytisine (5), and thermopsine (6) were successfully obtained in the two counter-current chromatography modes with the purities over 96.5%. Moreover, we adopted nuclear magnetic resonance and mass spectrometry for structural characterization. Based on the obtained findings, the pH-zone-refining mode was the efficient method to separate quinolyridine alkaloids relative to the traditional mode.
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Affiliation(s)
- Fansheng Ning
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Biological Engineering Technology Innovation Center of Shandong Province, Heze Branch of Shandong Academy of Sciences, Qilu University of Technology, Heze, P. R. China
| | - Heng Zhu
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Huijiao Yan
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Jiguo Liu
- Heze Peony Development Service Center, Heze, P. R. China
| | - Shahid Aziz
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, Pakistan
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Xiangyun Song
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Lei Xie
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
| | - Zhaoqing Meng
- Shandong Hongjitang Pharmaceutical Group Co., Ltd., Jinan, P. R. China
| | - Guiyun Cao
- Shandong Hongjitang Pharmaceutical Group Co., Ltd., Jinan, P. R. China
| | - Daijie Wang
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China
- Biological Engineering Technology Innovation Center of Shandong Province, Heze Branch of Shandong Academy of Sciences, Qilu University of Technology, Heze, P. R. China
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Hua X, Feng X, Hua Y, Wang D. Paeoniflorin attenuates polystyrene nanoparticle-induced reduction in reproductive capacity and increase in germline apoptosis through suppressing DNA damage checkpoints in Caenorhabditis elegans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 871:162189. [PMID: 36775158 DOI: 10.1016/j.scitotenv.2023.162189] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Due to high sensitivity to environmental exposures, Caenorhabditis elegans is helpful for toxicity evaluation and toxicological study of pollutants. Using this animal model, we investigated the reproductive toxicity of 20 nm polystyrene nanoparticle (PS-NP) in the range of μg/L and the following pharmacological intervention of paeoniflorin. After exposure from L1-larvae to young adults, 10-100 μg/L PS-NP could cause the reduction in reproductive capacity reflected by the endpoints of brood size and number of fertilized eggs in uterus. Meanwhile, the enhancements in germline apoptosis analyzed by AO staining and germline DNA damage as shown by alteration in HUS-1::GFP signals were detected in 10-100 μg/L PS-NP exposed nematodes, suggesting the role of DNA damage-induced germline apoptosis in mediating PS-NP toxicity on reproductive capacity. Following the exposure to 100 μg/L PS-NP, posttreatment with 25-100 mg/L paeoniflorin increased the reproductive capacity and inhibited both germline apoptosis and DNA damage. In addition, in 100 μg/L PS-NP exposed nematodes, treatment with 100 mg/L paeoniflorin modulated the expressions of genes governing germline apoptosis as indicated by the decrease in ced-3, ced-4, an egl-1 expressions and the increase in ced-9 expression. After exposure to 100 μg/L PS-NP, treatment with 100 mg/L paeoniflorin also decreased expressions of genes (cep-1, clk-2, hus-1, and mrt-2) governing germline DNA damage. Molecular docking analysis further demonstrated the binding potential of paeoniflorin with three DNA damage checkpoints (CLK-2, HUS-1, and MRT-2). Therefore, our data suggested the toxicity of PS-NP in the range of μg/L on reproductive capacity after exposure from L1-larvae to young adults, which was associated with the enhancement in DNA damage-induced germline apoptosis. More importantly, the PS-NP-induced reproductive toxicity on nematodes could be inhibited by the following paeoniflorin treatment.
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Affiliation(s)
- Xin Hua
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Xiao Feng
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Yingshun Hua
- Lintao Maternity and Child Health Center, Lintao 730500, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China; Shenzhen Ruipuxun Academy for Stem Cell & Regenerative Medicine, Shenzhen 518122, China.
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A Neglected Issue: Stationary Phase Retention Determination of Classic High-Speed Counter-Current Chromatography Solvent Systems. SEPARATIONS 2022. [DOI: 10.3390/separations9110357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Obtaining an ideal solvent system for target compounds is still an obstacle to the wide application of high-speed counter-current chromatography (HSCCC). The partition coefficient and retention of the stationary phase are two key parameters for solvent system selection. The retention of the stationary phase of the solvent system is roughly judged by settling time using a test tube, which is subjective and inaccurate. In this study, we demonstrated that high-resolution separation of HSCCC is tightly connected with the retention of the stationary phase. Notably, unlike the in vitro test of settling time, we investigated the retention of the stationary phase of classical biphasic solvent systems by a TBE300C HSCCC apparatus. Our results revealed that settling time is not always inversely proportional to the retention of the stationary phase. The n-hexane–ethylacetate–methanol–water solvent systems showed the highest correlation coefficient of settling time and retention of the stationary phase (r = −0.91, n = 16). N-heptane–n-butanol–acetonitrile–water solvent system showed the lowest correlation coefficient (r = −0.26, n = 7). These results may be helpful for HSCCC solvent system selection and accelerate the application of this technique.
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Exploring the Molecular Mechanism of Tong Xie Yao Fang in Treating Ulcerative Colitis Using Network Pharmacology and Molecular Docking. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:8141443. [PMID: 36204124 PMCID: PMC9532093 DOI: 10.1155/2022/8141443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 11/18/2022]
Abstract
Objective. The purpose of this study was to investigate the mechanisms of action of Tong Xie Yao Fang (TXYF) against ulcerative colitis (UC) by employing a network pharmacology approach. Methods. The network pharmacology approach, including screening of the active ingredients and targets, construction of the active ingredient-drug target network, the active ingredient-diseasetarget network, the protein–protein interaction (PPI) network, enrichment analyses, molecular docking, and targets validation, was used to explore the mechanisms of TXYF against UC. Results. 34 active ingredients and 129 and 772 targets of TXYF and UC, respectively, were identified. The intersection of the active ingredient-drug target network, the active ingredient-disease target network, and the PPI network suggested that kaempferol, beta-sitosterol, wogonin, and naringenin were the core ingredients and prostaglandin-endoperoxide synthase 2 (PTGS2) was the core target. Enrichment analyses showed that regulation of exogenous protein binding and other functions were of great significance. Nuclear factor-kappa B (NF-κB) signaling pathway, interleukin-17 (IL-17) signaling pathway, and tumor necrosis factor (TNF) signaling pathway were important pathways. Results of molecular docking indicated that the core ingredients and the target molecule had strong binding affinities. We have validated the high levels of expression of PTGS2 in UC by analyzing three additional datasets from the Gene Expression Omnibus (GEO) database. Conclusions. There are multiple ingredients, targets, and pathways involved in TXYF’s effectiveness against UC, and these findings will promote further research and clinical applications.
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