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Zhu JW, Chen DS, Lei L, Wang TF, Duan GQ, Gou Y, Zhao JW. [Evaluation of the efficacy of medial open wedge high tibial osteotomy combined with anterior cruciate ligament reconstruction in the treatment of varus knee osteoarthritis with anterior cruciate ligament injury]. Zhonghua Yi Xue Za Zhi 2024; 104:1481-1485. [PMID: 38706054 DOI: 10.3760/cma.j.cn112137-20231023-00869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Objective: To evaluate the efficacy of medial open wedge high tibial osteotomy (MOWHTO) combined with anterior cruciate ligament (ACL) reconstruction in the treatment of varus knee osteoarthritis (OA) with ACL injury. Methods: A follow-up study. The study retrospectively analyzed the patients underwent MOWHTO combined with ACL reconstruction for treatment of varus knee OA with ACL injury in Tianjin Hospital between April 2018 and September 2022. The preoperative and postoperative posterior slope angle (PSA), hip-knee-ankle angle (HKA), visual analog scale (VAS) pain scores, Lysholm score, International Knee Documentation Committee (IKDC) score, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, and Tegner score were compared. The follow-up indicators were recorded at 6 weeks, 3 months and 1 year after operation, and the complications were recorded. Results: The study included 32 patients (23 males, 9 females) with a mean age of (50.7±8.4) years. The mean follow-up time was (21.2±4.8) months. PSA increased from 9.2°±1.8° preoperatively to 11.1°±2.4° postoperatively, and HKA increased from 168.7°±2.2° to 181.5°±2.2° (both P<0.01). The indicators such as VAS score (6.8±1.1 vs 1.8±0.4), Lysholm score (52.6±7.1 vs 82.0±6.4), IKDC score (64.7±6.2 vs 80.3±10.0), WOMAC score (51.8±6.3 vs 81.8±6.5), and Tegner score (1.9±0.6 vs 5.0±1.0) were all improved after the operation (all P<0.01). Complications occurred in 5 patients (15.6%), including hematomas, sensory abnormalities, intermuscular vein thrombosis and correction angle loss. Conclusion: MOWHTO combined with ACL reconstruction is a safe and effective approach for the treatment of varus knee OA with ACL injury.
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Affiliation(s)
- J W Zhu
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
| | - D S Chen
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
| | - L Lei
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
| | - T F Wang
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
| | - G Q Duan
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
| | - Y Gou
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
| | - J W Zhao
- Department of Sports Medicine and Arthroscopy, Tianjin Hospital, Tianjin 300210, China
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Yang YH, Wang M, Chong YM, Deng HM, Jiang ML, Yang ZZ, Yan YH, Qi JL, Li M, Gou Y. [Quality status of Bombyx Batryticatus and suggestions for Chinese Pharmacopoeia (2025)]. Zhongguo Zhong Yao Za Zhi 2023; 48:4087-4096. [PMID: 37802776 DOI: 10.19540/j.cnki.cjcmm.20230413.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
To understand the current quality status and rearing situation of Bombyx Batryticatus, the authors collected 102 batches of Bombyx Batryticatus from different main producing areas and five major Chinese medicine markets from 2016 to 2018, and measured the properties and quality of the silk gland, to clarify the quality status of Bombyx Batryticatus from different producing areas and markets. In addition, 35 batches of Bombyx Batryticatus from 2019 to 2022 were used to verify the silk gland after revision. Moreover, Beauveria Bassiana was inoculated in the silkworm of 4-5 instars, and standardized rearing was carried out until they die. The death rate and the quality of Bombyx Batryticatus were measured to determine the differences in Bombyx Batryticatus of different instars, and explore the rationality of the infection age of Bombyx Batryticatus in Chinese Pharmacopoeia(2020). The results revealed that in the 102 batches of Bombyx Batryticatus, the qualification rate of silk gland was low; the content of total ash far exceeded the standard; the content of beauvericin varied greatly. The qualification rate of the silk gland of the 35 batches of Bombyx Batryticatus was only 47.49%, which could be increased to 73.00% if the number of silk gland was 2 to 4. The death rate of Bombyx Batryticatus at different infection ages was quite different, with uneven quality. Generally, the yield of Bombyx Batryticatus inoculated on the first day of the fifth instar was high with good quality. Therefore, in combination with the quality and actual production of Bombyx Batryticatus, the following suggestions were proposed for revision of Bombyx Batryticatus in Chinese Pharmacopoeia(2025): The number of silk gland should be revised as 2-4 bright brown or bright black silk glands, after which, the quality of Bombyx Batryticatus could be guaranteed, and the "quality identification based on character" could also be reflected scientifically; the content determination index that the content of beauvericin shall not be less than 0.017% should be added to better control the quality of Bombyx Batryticatus; the infection age should be revised as the first day of the fifth instar to narrow the age span, which could better fit the actual production and ensure the quality of Bombyx Batryticatus.
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Affiliation(s)
- Yong-Hong Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Mei Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Ye-Min Chong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Hong-Mei Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Meng-Lian Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Zhuan-Zhen Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Yu-Hao Yan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Jing-Liang Qi
- National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices) Chengdu 611731, China
| | - Min Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Yan Gou
- National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices) Chengdu 611731, China
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Xie J, Li Y, Liu J, Gou Y, Wang G. [Advances in the structure and function of chitosanase]. Sheng Wu Gong Cheng Xue Bao 2023; 39:912-929. [PMID: 36994562 DOI: 10.13345/j.cjb.220530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Chitosanases represent a class of glycoside hydrolases with high catalytic activity on chitosan but nearly no activity on chitin. Chitosanases can convert high molecular weight chitosan into functional chitooligosaccharides with low molecular weight. In recent years, remarkable progress has been made in the research on chitosanases. This review summarizes and discusses its biochemical properties, crystal structures, catalytic mechanisms, and protein engineering, highlighting the preparation of pure chitooligosaccharides by enzymatic hydrolysis. This review may advance the understandings on the mechanism of chitosanases and promote its industrial applications.
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Affiliation(s)
- Jie Xie
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yubin Li
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jingwei Liu
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Gou
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Ganggang Wang
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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Ma Y, Gao B, Qi J, Gou Y, Li Z, Chen Y, Li M, Zhou J, Zhong L, Cai X. Authentication of Cyathulae Radix and Cyathulae Capitatae Radix based on the strength of the characteristic component achybidensaponin I. Biomed Chromatogr 2023; 37:e5526. [PMID: 36250730 DOI: 10.1002/bmc.5526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 12/15/2022]
Abstract
Because of the immense difficulty in identifying Cyathulae Capitatae Radix adulteration in Cyathulae Radix, this research aims at fortifying the quality control of Cyathulae Radix and its decoction pieces to guarantee the effectiveness and safety of its clinical use in terms of source material. A method was devised to identify Cyathulae Capitatae Radix adulteration in Cyathulae Radix and its decoction pieces. This research takes achybidensaponin I, that is, the characteristic component of Cyathulae Capitatae Radix, as reference substance and adopts HPLC for detection. The results revealed that, among all samples collected, no trace of achybidensaponin I was found in the 21 batches of Cyathulae Radix, whereas achybidensaponin I was found in all the 14 batches of Cyathulae Capitatae Radix. The research sets 5% as the adulteration limit, that is, 1.45 mg/g Cyathulae Capitatae Radix was detected in 57.14% of the 49 batches of market samples collected and the ratio was 51.02% in the case of 5% adulteration limit. The method is not only precise and reliable but can also be used as a supplement for provisions regarding quality control of Cyathulae Radix and its decoction pieces in Pharmacopoeia of the People's Republic of China, to effectively crack down on Cyathulae Capitatae Radix adulteration in the market.
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Affiliation(s)
- Yanhong Ma
- School of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Bixing Gao
- Sichuan Institute for Drug Control/NMPA Key Laboratory for Quality Evaluation of Traditional Chinese Medicine, Chengdu, China
| | - Jingliang Qi
- Sichuan Institute for Drug Control/NMPA Key Laboratory for Quality Evaluation of Traditional Chinese Medicine, Chengdu, China
| | - Yan Gou
- Sichuan Institute for Drug Control/NMPA Key Laboratory for Quality Evaluation of Traditional Chinese Medicine, Chengdu, China
| | - Zhi Li
- School of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Yingxin Chen
- School of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Min Li
- School of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Juan Zhou
- Sichuan Institute for Drug Control/NMPA Key Laboratory for Quality Evaluation of Traditional Chinese Medicine, Chengdu, China
| | - Lian Zhong
- Sichuan Institute for Drug Control/NMPA Key Laboratory for Quality Evaluation of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoyang Cai
- School of Pharmacy, Chengdu University of TCM, Chengdu, China
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5
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Wang Y, Gou Y, Zhang L, Li C, Wang Z, Liu Y, Geng Z, Shen M, Sun L, Wei F, Zhou J, Gu L, Jin H, Ma S. Levels and Health Risk of Pesticide Residues in Chinese Herbal Medicines. Front Pharmacol 2022; 12:818268. [PMID: 35177984 PMCID: PMC8844025 DOI: 10.3389/fphar.2021.818268] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/16/2021] [Indexed: 12/19/2022] Open
Abstract
In the present study, 168 pesticides in 1,017 samples of 10 Chinese herbal medicines (CHMs) were simultaneously determined by high-performance liquid (HPLC-MS/MS) and gas (GC-MS/MS) chromatography–tandem mass spectrometry. A total of 89.2% of the samples encompassed one or multiple pesticide residues, and the residue concentrations in 60.5% of samples were less than 0.02 mg kg−1, revealing the relatively low residue levels. The hazard quotient and hazard index methods were used to estimate the health risk for consumers. For a more accurate risk assessment, the exposure frequency and exposure duration of CHMs were involved into the exposure assessment, which was obtained from a questionnaire data of 20,917 volunteers. The results of chronic, acute, and cumulative risk assessment indicated that consumption of CHMs is unlikely to pose a health risk to consumers. Ranking the risk of detected pesticides revealed that phorate, BHC, triazophos, methidathion, terbufos, and omethoate posed the highest risk. Our results also showed that pollution of the aboveground medicinal part was more serious. Although exposure to pesticides in tested CHMs was below dangerous levels, more strict controlled management should be carried out for banned pesticides due to the high detection rate and illegal use in the actual planting practice.
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Affiliation(s)
- Ying Wang
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
| | - Yan Gou
- Sichuan Institute for Drug Control, Sichuan Testing Center of Medical Devices/NMPA Key Laboratory of Quality Evaluation of Chinese Patent Medicines, Chengdu, China
| | - Lei Zhang
- China National Center for Food Safety Risk Assessment, Beijing, China
| | - Chun Li
- Guangzhou Institute for Drug Control, NMPA Key Laboratory for Quality Evaluation of Traditional Medicine, Guangzhou, China
| | - Zhao Wang
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
| | - Yuanxi Liu
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
| | - Zhao Geng
- Sichuan Institute for Drug Control, Sichuan Testing Center of Medical Devices/NMPA Key Laboratory of Quality Evaluation of Chinese Patent Medicines, Chengdu, China
| | - Mingrui Shen
- Chinese Pharmacopoeia Commission, Beijing, China
| | - Lei Sun
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
| | - Feng Wei
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
| | - Juan Zhou
- Sichuan Institute for Drug Control, Sichuan Testing Center of Medical Devices/NMPA Key Laboratory of Quality Evaluation of Chinese Patent Medicines, Chengdu, China
| | - Lihong Gu
- Guangzhou Institute for Drug Control, NMPA Key Laboratory for Quality Evaluation of Traditional Medicine, Guangzhou, China
| | - Hongyu Jin
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
| | - Shuangcheng Ma
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing, China
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Gou Y, Mu X, Li Y, Tang M, Chen G, Xiao S. Three-liquid-phase extraction and re-partition as an integrated process for simultaneous extraction and separation of lithospermic acid B and tanshinone IIA. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Zhang S, Wang H, Sun X, Zheng A, Zhang Z, Gou Y, Shen D, Li J. An advanced scaling model system for non-condensable gas steam assisted gravity drainage recovery process. MethodsX 2021; 8:101531. [PMID: 34754800 PMCID: PMC8563687 DOI: 10.1016/j.mex.2021.101531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/24/2021] [Indexed: 12/05/2022] Open
Abstract
Physical modeling is critical to study the performance of certain operation in heavy oil reservoirs. A well-designed experiment should guarantee the information gathered from lab would be applied to predict the thermal process in the field. To meet this requirement, the initial and boundary condition similarity between lab and field should be satisfied. It is reasonable to follow certain scaling criteria to fabricate the physical model. In addition to these conventional guidelines, this paper makes following recommendations to ensure a successful thermal recovery experiment,To control and mitigate the steam channeling between the sand-pack and apparatus wall, the back wall is designed as it can be pushed enough to increase contact pressure. Heat loss should be handled carefully, which impacting steam chamber growing and causing heat accumulation around the model. A data acquisition system, based on PXI platform and Labview software, for the thermal recovery experiments had been proved valuable in evaluating the spreading progress of steam chamber.
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Gou Y, Geng Z, Zhong L, Wei J, Liu J, Deng X, Li M, Yuan J, Wang Y, Guo L. A new strategy for quality evaluation and control of Chinese patent medicine based on chiral isomer ratio analysis: With Yuanhuzhitong tablet as an example. Biomed Chromatogr 2021; 35:e5211. [PMID: 34216391 DOI: 10.1002/bmc.5211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 11/11/2022]
Abstract
Chiral compounds commonly exist in traditional Chinese medicine (TCM), but little research on the quality control of TCM has been conducted. In this study, a new strategy is proposed, taking Yuanhuzhitong tablet [YHZT, consisting of Radix Angelicae Dahuricae and Rhizoma Corydalis (Yan Hu Suo, YHS)] for example, which is based on chiral isomer ratio analysis to monitor the production process of Chinese patent medicine companies. In the process of content determination for tetrahydropalmatine (THP) in YHZT from different companies, noticeable differences were observed in their chromatographic behaviors. It is known that THP has two enantiomers, naturally coexisting in YHS as a racemic mixture, so we prepared THP twice and subsequently performed chiral separation analysis using supercritical fluid chromatography. As a result, the peak area ratios of two enantiomers from different companies varied remarkably, demonstrating that some companies did not probably manufacture YHZT products in accordance with the prescription proportion, used inferior or extracted YSH crude materials in the production process, and added raw chemical medicine in the production to reach the standard and lower the costs. In conclusion, the peak area ratio of chiral isomers could be taken as a key quality index.
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Affiliation(s)
- Yan Gou
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices), Chengdu, China
| | - Zhao Geng
- National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices), Chengdu, China.,State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - Lian Zhong
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices), Chengdu, China
| | - Jinchao Wei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - Juanru Liu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaohong Deng
- National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices), Chengdu, China
| | - Min Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jun Yuan
- National Medical Products Administration Key Laboratory for Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Sichuan Institute for Drug Control (Sichuan Testing Center of Medical Devices), Chengdu, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - Li Guo
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Li Y, Gou Y, Liu Z, Xie T, Wang G. Structure-based rational design of chitosanase CsnMY002 for high yields of chitobiose. Colloids Surf B Biointerfaces 2021; 202:111692. [PMID: 33744813 DOI: 10.1016/j.colsurfb.2021.111692] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
Chitosan oligosaccharides (COS) are attractive active molecules for biomedical applications. Currently, the prohibitively high cost of producing fully defined COS hampers extensive studies on their biological activity and restricts their use in various industries. Thus, cost-effective production of pure COS is of major importance. In this report, chitosanase from Bacillus subtilis MY002 (CsnMY002) was prepared for COS production. The structure of apo CsnMY002 displayed an unexpected tunnel-like substrate-binding site and the structure of the CsnMY002_E19A/(GlcN)6 complex highlighted the "4 + 2″ splitting of hexaglucosamine even though the "3 + 3″ splitting is also observed in the TLC analysis of the enzyme products for hexaglucosamine. Structure based rational design was performed to generate mutants for chitobiose production. The CsnMY002_G21 K mutant produced chitobiose with a relative content > 87 % from chitosan with a low degree of acetylation, and 50.65 mg chitobiose with a purity > 98 % was prepared from 100 mg chitosan. The results provide insight on the catalytic mechanism of chitosanase and underpin future biomedical applications of pure chitobiose.
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Affiliation(s)
- Yubin Li
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu, 610041, China; College of Life Sciences, Sichuan University, Chengdu, 610064, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Gou
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu, 610041, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhongchuan Liu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu, 610041, China
| | - Tian Xie
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu, 610041, China
| | - Ganggang Wang
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu, 610041, China; The Innovative Academy of Seed Design (INASEED), Chinese Academy of Sciences, Beijing, 100101, China.
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Affiliation(s)
- T Fong
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - A Racine
- Hebrew SeniorLife, Harvard Medical School
| | - E Schmitt
- Aging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, MA
| | - T Hshieh
- Division of Aging, Brigham and Women’s Hospital and Harvard Medical School
| | | | - R Jones
- Brown University Warren Alpert Medical School
| | - S Inouye
- Hebrew Senior Life, Harvard Medical School, and Beth Israel Deaconess Medical Center
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Racine A, Jones R, Gou Y, Fong T, Ngo L, Travison T, Inouye S, Marcantonio E. PREOPERATIVE FRAILTY PREDICTS POSTOPERATIVE LONG-TERM COGNITIVE DECLINE INDEPENDENT OF DELIRIUM. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Racine
- Hebrew SeniorLife, Harvard Medical School
| | - R Jones
- Brown University Warren Alpert Medical School
| | | | - T Fong
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - L Ngo
- Beth Israel Deaconess Medical Center, Harvard Medical School
| | - T Travison
- Hebrew SeniorLife Institute for Aging Research and Assistant Professor of Medicine at Harvard Medical School
| | - S Inouye
- Hebrew Senior Life, Harvard Medical School, and Beth Israel Deaconess Medical Center
| | - E Marcantonio
- Beth Israel Deaconess Medical Center & Harvard Medical School
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12
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Fong TG, M Racine A, Schmitt EM, Hsheih T, Gou Y, N Jones R, K Inouye S. THE DISTRESS OF DELIRIUM IN PATIENTS WITH DEMENTIA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T G Fong
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States
| | - A M Racine
- Hebrew SeniorLife, Harvard Medical School, Boston, MA, USA; Frontotemporal Disorders Unit, Massachusetts General Hospital, Boston, MA, USA
| | - E M Schmitt
- Aging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, MA, USA
| | - T Hsheih
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Y Gou
- Aging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, MA, USA
| | - R N Jones
- Departments of Psychiatry and Human Behavior and Neurology, Brown University Warren Alpert Medical School, Providence RI, USA
| | - S K Inouye
- Aging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
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13
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Gou Y, Li J, Jackson-Weaver O, Wu J, Zhang T, Gupta R, Cho I, Ho TV, Chen Y, Li M, Richard S, Wang J, Chai Y, Xu J. Protein Arginine Methyltransferase PRMT1 Is Essential for Palatogenesis. J Dent Res 2018; 97:1510-1518. [PMID: 29986157 DOI: 10.1177/0022034518785164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Cleft palate is among the most common birth defects. Currently, only 30% of cases have identified genetic causes, whereas the etiology of the majority remains to be discovered. We identified a new regulator of palate development, protein arginine methyltransferase 1 (PRMT1), and demonstrated that disruption of PRMT1 function in neural crest cells caused complete cleft palate and craniofacial malformations. PRMT1 is the most highly expressed of the protein arginine methyltransferases, enzymes responsible for methylation of arginine motifs on histone and nonhistone proteins. PRMT1 regulates signal transduction and transcriptional activity that affect multiple signal pathways crucial in craniofacial development, such as the BMP, TGFβ, and WNT pathways. We demonstrated that Wnt1-Cre;Prmt1 fl/fl mice displayed a decrease in palatal mesenchymal cell proliferation and failure of palatal shelves to reach the midline. Further analysis in signal pathways revealed that loss of Prmt1 in mutant mice decreased BMP signaling activation and reduced the deposition of H4R3me2a mark. Collectively, our study demonstrates that Prmt1 is crucial in palate development. Our study may facilitate the development of a better strategy to interrupt the formation of cleft palate through manipulation of PRMT1 activity.
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Affiliation(s)
- Y Gou
- 1 State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Li
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - O Jackson-Weaver
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Wu
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - T Zhang
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - R Gupta
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - I Cho
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - T V Ho
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - Y Chen
- 3 Bioinfornatics Group, Norris Medical Library, University of Southern California, Los Angeles, CA, USA
| | - M Li
- 3 Bioinfornatics Group, Norris Medical Library, University of Southern California, Los Angeles, CA, USA
| | - S Richard
- 4 Segal Cancer Center, Bloomfield Center for Research on Aging, Lady Davis Institute for Medical Research and Departments of Oncology and Medicine, McGill University, Montréal, Canada
| | - J Wang
- 1 State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Chai
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Xu
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
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14
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Geng Z, Liu Y, Gou Y, Zhou Q, He C, Guo L, Zhou J, Xiong L. Metabolomics Study of Cultivated Bulbus Fritillariae Cirrhosae at Different Growth Stages using UHPLC-QTOF-MS Coupled with Multivariate Data Analysis. Phytochem Anal 2018; 29:290-299. [PMID: 29336082 DOI: 10.1002/pca.2742] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 10/27/2017] [Accepted: 11/19/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Bulbus fritillariae cirrhosae (known as Chuān bèi mǔ in China, BFC) contain fritillaria steroidal alkaloids as the bioactive ingredients and are widely used as traditional Chinese medicine for the treatment of cough and phlegm. Due to limited wild resources, the cultivated species are becoming predominantly used in Chinese traditional medicine markets. OBJECTIVE To assess the impact of different growth stages on the alkaloids of cultivated BFC and establish a reference for quality control and guidance for appropriate harvesting practices. METHODS The ultra-high performance liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) metabolomic strategy was applied to determine potential chemical markers for the discrimination and quality control of cultivated BFC in different growth stages. The molecular feature extraction and multivariate statistical analysis were applied to alkaloid extraction and full metabolomic profiling of cultivated BFC for classification and marker compound characterisation. RESULT This approach allowed the establishment of a fast and efficient comparative multivariate analysis of the metabolite composition of 42 samples covering growth of cultivated BFC ranging in age from one to seven years old. Four alkaloid compounds were identified in cultivated BFC based on accurate mass, retention time, and MS/MS fragments. These compounds may be used as potential chemical markers for the classification and discrimination of cultivated BFC samples indifferent growth stages. CONCLUSIONS The proposed analytical method in combination with multivariate statistical analysis comprised a useful and powerful strategy to explore the chemical ingredients and transforming mechanisms of cultivated BFC and for quality evaluation and control. Copyright © 2018 John Wiley & Sons, Ltd.
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Affiliation(s)
- Zhao Geng
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, 611137, Chengdu, Sichuan, P. R. China
- Sichuan Institute for Food and Drug Control, 611731, Chengdu, Sichuan, P. R. China
| | - YiFei Liu
- Department of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, 610041, Chengdu, Sichuan Province, P. R. China
| | - Yan Gou
- Sichuan Institute for Food and Drug Control, 611731, Chengdu, Sichuan, P. R. China
| | - QinMei Zhou
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, 611137, Chengdu, Sichuan, P. R. China
| | - ChengJun He
- Sichuan Institute for Food and Drug Control, 611731, Chengdu, Sichuan, P. R. China
| | - Li Guo
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, 611137, Chengdu, Sichuan, P. R. China
| | - Juan Zhou
- Sichuan Institute for Food and Drug Control, 611731, Chengdu, Sichuan, P. R. China
| | - Liang Xiong
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, 611137, Chengdu, Sichuan, P. R. China
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15
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Zhang T, Wu J, Ungvijanpunya N, Jackson-Weaver O, Gou Y, Feng J, Ho TV, Shen Y, Liu J, Richard S, Jin J, Hajishengallis G, Chai Y, Xu J. Smad6 Methylation Represses NFκB Activation and Periodontal Inflammation. J Dent Res 2018; 97:810-819. [PMID: 29420098 DOI: 10.1177/0022034518755688] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The balance between pro- and anti-inflammatory signals maintains tissue homeostasis and defines the outcome of chronic inflammatory diseases such as periodontitis, a condition that afflicts the tooth-supporting tissues and exerts an impact on systemic health. The induction of tissue inflammation relies heavily on Toll-like receptor (TLR) signaling, which drives a proinflammatory pathway through recruiting myeloid differentiation primary response gene 88 (MyD88) and activating nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB). TLR-induced production of proinflammatory cytokines and chemokines is reined in by anti-inflammatory cytokines, including the transforming growth factor β (TGFβ) family of cytokines. Although Smad6 is a key mediator of TGFβ-induced anti-inflammatory signaling, the exact mechanism by which TGFβ regulates TLR proinflammatory signaling in the periodontal tissue has not been addressed to date. In this study, we demonstrate for the first time that the ability of TGFβ to inhibit TLR-NFκB signaling is mediated by protein arginine methyltransferase 1 (PRMT1)-induced Smad6 methylation. Upon methylation, Smad6 recruited MyD88 and promoted MyD88 degradation, thereby inhibiting NFκB activation. Most important, Smad6 is expressed and methylated in the gingival epithelium, and PRMT1-Smad6 signaling promotes tissue homeostasis by limiting inflammation. Consistent with this, disturbance of Smad6 methylation exacerbates inflammation and bone loss in experimental periodontitis. The dissected mechanism is therapeutically important, as it highlights the manipulation of PRMT1-Smad6 signaling as a novel promising strategy to modulate the host immune response in periodontitis.
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Affiliation(s)
- T Zhang
- 1 Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory for Oral Biomedical Engineering of Higher Education, and Stomatological Hospital of Chongqing Medical University, Chongqing, China.,2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Wu
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - N Ungvijanpunya
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - O Jackson-Weaver
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - Y Gou
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Feng
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - T V Ho
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - Y Shen
- 3 Center for Chemical Biology and Drug Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - J Liu
- 3 Center for Chemical Biology and Drug Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - S Richard
- 4 Segal Cancer Center, Bloomfield Center for Research on Aging, Lady Davis Institute for Medical Research, Departments of Oncology and Medicine, McGill University, Montréal, Québec, Canada
| | - J Jin
- 3 Center for Chemical Biology and Drug Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - G Hajishengallis
- 5 Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Y Chai
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Xu
- 2 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
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16
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Gu L, Mazzoni A, Gou Y, Pucci C, Breschi L, Pashley D, Niu L, Tay F. Zymography of Hybrid Layers Created Using Extrafibrillar Demineralization. J Dent Res 2018; 97:409-415. [PMID: 29294298 DOI: 10.1177/0022034517747264] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- L. Gu
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology & Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, PR China
| | - A. Mazzoni
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna–Alma Mater Studiorum, Bologna, Italy
| | - Y. Gou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - C. Pucci
- Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University UNESP São Jose dos Campos, São Paulo, Brazil
| | - L. Breschi
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna–Alma Mater Studiorum, Bologna, Italy
| | - D.H. Pashley
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - L. Niu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, PR China
| | - F.R. Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, USA
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17
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Gou Y, Liu Z, Wang G. [Advances in isoprene synthase research]. Sheng Wu Gong Cheng Xue Bao 2017; 33:1802-1813. [PMID: 29202517 DOI: 10.13345/j.cjb.170040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Isoprene emission can lead to significant consequence for atmospheric chemistry. In addition, isoprene is a chemical compound for various industrial applications. In the organisms, isoprene is produced by isoprene synthase that eliminates the pyrophosphate from the dimethylallyl diphosphate. As a key enzyme of isoprene formation, isoprene synthase plays an important role in the process of natural emission and artificial synthesis of isoprene. So far, isoprene synthase has been found in various plants. Isoprene synthases from different sources are of conservative structural and similar biochemical properties. In this review, the biochemical and structural characteristics of isoprene synthases from different sources were compared, the catalytic mechanism of isoprene synthase was discussed, and the perspective application of the enzyme in bioengineering was proposed.
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Affiliation(s)
- Yan Gou
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China.,Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongchuan Liu
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China.,Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
| | - Ganggang Wang
- Key Laboratory of Environmental and Applied Microbiology of Chinese Academy of Sciences, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China.,Key Laboratory of Environmental Microbiology of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
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18
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Hshieh T, Saczynski J, Gou Y, Marcantonio E, Jones R, Cooper Z, Travison T, Inouye S. DELIRIUM DELAYS FUNCTIONAL RECOVERY FOLLOWING ELECTIVE SURGERY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T.T. Hshieh
- Brigham and Women’s Hospital, Boston, Massachusetts,
- Hebrew SeniorLife, Boston, Massachusetts,
| | - J. Saczynski
- Hebrew SeniorLife, Boston, Massachusetts,
- Northeastern University, Boston, Massachusetts,
| | - Y. Gou
- Hebrew SeniorLife, Boston, Massachusetts,
| | - E.R. Marcantonio
- Hebrew SeniorLife, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
| | - R.N. Jones
- Hebrew SeniorLife, Boston, Massachusetts,
- Warren Alpert Medical School of Brown University, Providence, Massachusetts
| | - Z. Cooper
- Brigham and Women’s Hospital, Boston, Massachusetts,
| | - T. Travison
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
- Hebrew SeniorLife, Boston, Massachusetts,
| | - S.K. Inouye
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
- Hebrew SeniorLife, Boston, Massachusetts,
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19
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Schmitt E, Gou Y, Travison T, Jones R, Alsop D, Fong T, Marcantonio E, Inouye S. THE SAGES STUDY: DESCRIPTION OF COHORT AND DATA QUALITY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Y. Gou
- Hebrew SeniorLife, Boston, Massachusetts,
| | - T. Travison
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
- Hebrew SeniorLife, Boston, Massachusetts,
| | - R.N. Jones
- Hebrew SeniorLife, Boston, Massachusetts,
- Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - D. Alsop
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
| | - T. Fong
- Hebrew SeniorLife, Boston, Massachusetts,
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
| | - E.R. Marcantonio
- Hebrew SeniorLife, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
| | - S.K. Inouye
- Beth Israel Deaconess Medical Center, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
- Hebrew SeniorLife, Boston, Massachusetts,
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20
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Jiang YB, Zhong M, Hu MX, Chen L, Gou Y, Zhou J, Wu PE, Ma YY. Spectrum-effect relationships between high performance liquid chromatography fingerprint and analgesic property of Anisodus tanguticus (Maxim) Pascher (Solanaceae) roots. TROP J PHARM RES 2017. [DOI: 10.4314/tjpr.v16i2.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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21
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Jiang YB, Gou Y, Yuan MH, Ma YY, Zhou J, Wu PE. [HPLC Fingerprint of Anisodus tanguticus Root]. Zhong Yao Cai 2015; 38:957-961. [PMID: 26767288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To establish an HPLC fingerprint of Anisodus tanguticus root for its quality control. METHODS The analysis was carried out on a Ultimate AQ C18 (250 mm x 4.6 mm, 5 μm) column with the gradient elution of acetonitrile and KH2PO4 buffer soution, whose pH was adjusted to 3.0 with phosphoric acid. The flow rate, column temperature, detection wavelength and injection volume was 1.0 mL/min, 30 degrees C, 210 nm and 10 μL separately. The similarity evaluation and principal component analysis were used to analyze HPLC fingerprint of Anisodus tanguticus root. RESULTS HPLC fingerprint of Anisodus tanguticus root was established with 15 common peaks by determining 18 batches of Anisodus tanguticus root samples. Four characteristic peaks, anisodine, scopolamine, anisodamine and anisodamine, were confirmed by comparing their retention time and UV spectrum with standard reference substances. The simiarities of 18 batches of Anisodus tanguticus root were between -0.891 and 0.987. Comprehensive evaluation scores of 18 batches of Anisodus tanguticus root were between -0.85 and 0.89 by principal component analysis. CONCLUSION The established HPLC fingerprint has good precision, repeatability and stability, which can provide more comprehensive information for identification and quality control of Anisodus tanguticus root.
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22
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Jiang Y, Zhong M, Gou Y, Peng W, Zhou J, Wu P, Ma Y. Development of a more specific and accurate multiple reaction monitoring method based on GC–EI/MS/MS for simultaneously monitoring and determining 34 kinds of pesticides in Qianjinzhidai pills. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 983-984:47-54. [PMID: 25618250 DOI: 10.1016/j.jchromb.2015.01.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 12/15/2014] [Accepted: 01/04/2015] [Indexed: 10/24/2022]
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23
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Jiang C, Li Z, Quan H, Xiao L, Zhao J, Jiang C, Wang Y, Liu J, Gou Y, An S, Huang Y, Yu W, Zhang Y, He W, Yi Y, Chen Y, Wang J. Osteoimmunology in orthodontic tooth movement. Oral Dis 2014; 21:694-704. [PMID: 25040955 DOI: 10.1111/odi.12273] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 06/18/2014] [Accepted: 06/26/2014] [Indexed: 02/05/2023]
Abstract
The skeletal and immune systems share a multitude of regulatory molecules, including cytokines, receptors, signaling molecules, and signaling transducers, thereby mutually influencing each other. In recent years, several novel insights have been attained that have enhanced our current understanding of the detailed mechanisms of osteoimmunology. In orthodontic tooth movement, immune responses mediated by periodontal tissue under mechanical force induce the generation of inflammatory responses with consequent alveolar bone resorption, and many regulators are involved in this process. In this review, we take a closer look at the cellular/molecular mechanisms and signaling involved in osteoimmunology and at relevant research progress in the context of the field of orthodontic tooth movement.
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Affiliation(s)
- C Jiang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Z Li
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - H Quan
- Qingdao First Sanatorium of Jinan Military Distract of PLA, Qingdao, Shandong, China
| | - L Xiao
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - J Zhao
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - C Jiang
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Wang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - J Liu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Gou
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - S An
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Huang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - W Yu
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Zhang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - W He
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Yi
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Chen
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - J Wang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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24
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Gou Y, Liu Y, Zhao XH, Li YG, Chen W. Synthesis and crystal structures of two new Schiff base cobalt(II) and nickel(II) complexes. RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412120019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Deng KL, Zhong HB, Tian T, Gou Y, Li Q, Dong LR. Drug release behavior of a pH/temperature sensitive calcium alginate/poly(N-acryloylglycine) bead with core-shelled structure. EXPRESS POLYM LETT 2010. [DOI: 10.3144/expresspolymlett.2010.93] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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26
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Sun Q, Gou Y. [The massotherapy in the Recipes for 52 kinds of disease] (Chi). Zhonghua Yi Shi Za Zhi 2001; 18:56-7. [PMID: 11621473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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27
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Ren R, Tang Z, Liu F, Gou Y, Ren Y. [Nondestructive quantitative analysis of Paracetamoli powder pharmaceutical by artificial neural network and near-infrared spectroscopy]. Guang Pu Xue Yu Guang Pu Fen Xi 2001; 21:521-523. [PMID: 12945280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The application of artificial neural network for pharmaceutical nondestructive quantitative analysis were investigated. Real data set from near infrared reflectance spectra of Paracetamoli powder pharmaceutical were used to build up artificial network to predict unknown samples. The parameters affecting network were discussed. A new network evaluation criterion, the degree of approximation, was employed. Owing to good nonlinear multivariate calibration nature of ANN, the predicted results was reliable.
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Affiliation(s)
- R Ren
- 208th Hospital, 130061 Changchun
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Gou Y, Xie J, Wang M. [A strain of influenza A H9N2 virus repeatedly isolated from human population in China]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2000; 14:209-12. [PMID: 11498680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
OBJECTIVE To understand the subtype of surface proteins (hemagglutinin and neuraminidase) and antigenic character of the isolate of influenza virus, as well as to know its origin. METHODS The virus isolation was performed on MDCK cells. The identification and antigenic analysis of the isolate were carried out with HI and NI tests. The serum antibody in population against the isolate was detected with HI and neutralization assays. The individual investigation of the patient from whom the H9N2 virus was isolated was followed. RESULTS The isolate was H9N2 subtype of influenza A virus. It was G9 like strain. Its antigenicity was different from that of H9N2 viruses which were previously found in humans, chickens and pigeons. The HI and neutralization titers to H9N2 virus in convalescent serum of the patient reached 1:400 and > or =1: 640, respectively. The HI antibody titer 1:25 to H9N2 virus was also detected in the serum of patient's mother. CONCLUSIONS The isolate is H9N2 subtype of influenza A virus and belongs to G9 like strain. The antigenic character of the isolate was different from that of H9N2 viruses found previously in humans, chickens and pigeons. The greatest possibility was that her mother had contacted with birds, especially chickens carrying H9N2 virus, then transmitted to her or she breathed in the air borne with H9N2 virus particles directly.
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Affiliation(s)
- Y Gou
- Department of Influenza, Institute of Virology, Chinese Academy of Preventive Medicine, Beijing 100052, China
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Abstract
Recently, the on-line sample preparation technique, intube solid-phase microextraction (SPME), was successfully implemented with a Hewlett-Packard 1100 HPLC system for analysis of carbamates in water samples. This paper describes the coupling of in-tube SPME to capillary LC and explores its utility as a sample preparation method in that format, relative to conventional LC. The Hewlett-Packard HPLC system was upgraded to a capillary LC system using commercially available accessories from LC Packings. The combination of in-tube SPME with a capillary LC system was expected to build on the merits of both in-tube SPME and the capillary LC to generate a sensitive method with an easy, effective, and efficient sample preparation. Due to the relatively large effective injection volume of the in-tube SPME technique (30-45 microL), on-column focusing was employed in order to achieve good chromatographic efficiency. Excellent sensitivity was achieved with very good method precision. For all carbamates studied, the RSD of retention time was between 0.5 and 0.8% under 4 microL/min microgradient conditions. The RSD of peak area counts was between 1.5 and 4.6%. The detection limits for all carbamates studied were less than 0.3 microg/L and, for carbaryl, just 0.02 microg/L (20 ppt). Compared with the conventional in-tube SPME/LC method, the LODs were lowered for carbaryl, propham, methiocarb, promecarb, chlorpropham, and barban, by factors of 24, 45, 42, 81, 62, and 56, respectively. The optimized method was successfully applied to the analysis of carbamates in surface water samples.
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Affiliation(s)
- Y Gou
- The Guelph-Waterloo Centre for Graduate Work in Chemistry, Department of Chemistry, University of Waterloo, Ontario, Canada
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Abstract
In-tube solid-phase microextraction (SPME) is an automated version of SPME that can be easily coupled to a conventional HPLC autosampler for on-line sample preparation, separation and quantitation. It has been termed "in-tube" SPME because the extraction phase is coated inside a section of fused-silica tubing rather than coated on the surface of a fused-silica rod as in the conventional syringe-like SPME device. The new in-tube SPME technique has been demonstrated as a very efficient extraction method for the analysis of polar and thermally labile analytes. The in-tube SPME-HPLC method used with the FAMOS autosampler from LC Packings was developed for detecting polar carbamate pesticides in clean water samples. The main parameters relating to the extraction and desorption processes of in-tube SPME (selection of coatings, aspirate/dispense steps, selection of the desorption solvents, and the efficiency of desorption solvent, etc.) were investigated. The method was evaluated according to the reproducibility, linear range and limit of detection. This method is simple, effective, reproducible and sensitive. The relative standard deviation for all the carbamates investigated was between 1.7 and 5.3%. The method showed good linearity between 5 and 10000 microg/l with correlation coefficients between 0.9824 and 0.9995. For the carbamates studied, the limits of detection observed are lower than or similar to that of US Environmental Protection Agency or National Pesticide Survey methods. Detection of carbaryl present in clean water samples at 1 microg/l is possible.
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Affiliation(s)
- Y Gou
- Guelph-Waterloo Centre for Graduate Work in Chemistry, Department of Chemistry, University of Waterloo, Ontario, Canada
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