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Zhang JB, Li MX, Zhang YF, Qin YW, Li Y, Su LL, Li L, Bian ZH, Lu TL. E-eye, flash GC E-nose and HS-GC-MS combined with chemometrics to identify the adulterants and geographical origins of Ziziphi Spinosae Semen. Food Chem 2023; 424:136270. [PMID: 37207600 DOI: 10.1016/j.foodchem.2023.136270] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 01/03/2023] [Revised: 04/14/2023] [Accepted: 04/27/2023] [Indexed: 05/21/2023]
Abstract
Ziziphi Spinosae Semen (ZSS), a valuable seed food, has faced increasing authenticity issues. In this study, the adulterants and geographical origins of ZSS were successfully identified by electronic eye, flash gas chromatography electronic nose (Flash GC e-nose) and headspace gas chromatography-mass spectrometry (HS-GC-MS). As a result, there were color differences between ZSS and adulterants, mainly represented by the a* value of ZSS was less than adulterants. In ZSS, 29 and 32 compounds were detected by Flash GC e-nose and HS-GC-MS. Spicy, sweety, fruity and herbal were the main flavor of ZSS. Five compounds were determined to be responsible for flavor differences between different geographical origins. In the HS-GC-MS analysis, the relative content of Hexanoic acid was the highest in ZSS from Hebei and Shandong, while 2,4-Decadien-1-ol was the highest in Shaanxi. Overall, this study provided a meaningful strategy for addressing authenticity problems of ZSS and other seed foods.
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Affiliation(s)
- Jiu-Ba Zhang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ming-Xuan Li
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yun-Fei Zhang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu-Wen Qin
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Li
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Lian-Lin Su
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Lin Li
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhen-Hua Bian
- Department of Pharmacy, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi 214071, China.
| | - Tu-Lin Lu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Li MX, Qin YW, Li Y, Zhang JB, Ji D, Qu LY, Gong JW, Jia AM, Mao CQ, Lu TL. [Rapid identification and differential markers of Curcumae Radix decoction pieces of different sources based on Heracles Neo ultra-fast gas phase electronic nose]. Zhongguo Zhong Yao Za Zhi 2023; 48:1518-1525. [PMID: 37005839 DOI: 10.19540/j.cnki.cjcmm.20221203.301] [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: 04/04/2023]
Abstract
Since Curcumae Radix decoction pieces have multiple sources, it is difficult to distinguish depending on traditional cha-racters, and the mixed use of multi-source Curcumae Radix will affect its clinical efficacy. Heracles Neo ultra-fast gas phase electronic nose was used in this study to quickly identify and analyze the odor components of 40 batches of Curcumae Radix samples from Sichuan, Zhejiang, and Guangxi. Based on the odor fingerprints established for Curcumae Radix decoction pieces of multiple sources, the odor components was identified and analyzed, and the chromatographic peaks were processed and analyzed to establish a rapid identification method. Principal component analysis(PCA), discriminant factor analysis(DFA), and soft independent modeling cluster analysis(SIMCA) were constructed for verification. At the same time, one-way analysis of variance(ANOVA) combined with variable importance in projection(VIP) was employed to screen out the odor components with P<0.05 and VIP>1, and 13 odor components such as β-caryophyllene and limonene were hypothesized as the odor differential markers of Curcumae Radix decoction pieces of diffe-rent sources. The results showed that Heracles Neo ultra-fast gas phase electronic nose can well analyze the odor characteristics and rapidly and accurately discriminate Curcumae Radix decoction pieces of different sources. It can be applied to the quality control(e.g., online detection) in the production of Curcumae Radix decoction pieces. This study provides a new method and idea for the rapid identification and quality control of Curcumae Radix decoction pieces.
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Affiliation(s)
- Ming-Xuan Li
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Yu-Wen Qin
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Yu Li
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Jiu-Ba Zhang
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - De Ji
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Ling-Yun Qu
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Jing-Wen Gong
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Ao-Meng Jia
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Chun-Qin Mao
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application Nanjing 210023,China Traditional Chinese Medicine Processing Technology Inheritance Base of the State Administration of Traditional Chinese Medicine Nanjing 210023,China
| | - Tu-Lin Lu
- School of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210023,China Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application Nanjing 210023,China Traditional Chinese Medicine Processing Technology Inheritance Base of the State Administration of Traditional Chinese Medicine Nanjing 210023,China
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3
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Fei CH, Tong HJ, Li Y, Xu Z, Qin YW, Bian ZH, Su LL, Ji D, Lu TL, Mao CQ. [Prediction of material basis and mechanism of Curcumae Rhizoma in treatment of coronary heart disease]. Zhongguo Zhong Yao Za Zhi 2022; 47:3270-3284. [PMID: 35851121 DOI: 10.19540/j.cnki.cjcmm.20220118.201] [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: 06/15/2023]
Abstract
Coronary heart disease(CHD) is a common cardiovascular disease in clinical practice. Curcumae Rhizoma(CR), an important herbal medicine for breaking blood stasis and resolving mass, is often used for the treatment of CHD caused by blood stasis syndrome. However, the anti-CHD components, targets, and mechanism are still unclear. Therefore, in this study, the chemical components of CR were separated and identified by ultra high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS/MS). Based on the identified components, network pharmacology analysis, including target prediction and functional enrichment, was applied to screen out the main active components against CHD, and the potential mechanism was discussed. Finally, molecular docking was performed to verify the binding between the active components and the targets. The results showed that among the 52 chemical components identified in CR, 28 were related to CHD, involving 75 core targets. The core components included(4S)-4-hydroxy-gweicurculactone, curcumadione, and curcumenone, and the core targets included phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha(PIK3 CA), mitogen-activated protein kinase 1(MAPK1), and mitogen-activated protein kinase 3(MAPK3). In summary, through the active components, such as(4S)-4-hydroxy-gweicurculactone, curcumadione, and curcumenone, CR regulates the nerve repair, vasoconstriction, lipid metabolism, and inflammatory response, thereby exerts therapeutic effect on CHD.
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Affiliation(s)
- Cheng-Hao Fei
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - Huang-Jin Tong
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China Department of Pharmacy,Affiliated Hospital of Integrated Traditional Chinese and Western Medicine,Nanjing University of Chinese Medicine Nanjing 210028,China
| | - Yu Li
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - Zhen Xu
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - Yu-Wen Qin
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - Zhen-Hua Bian
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China Department of Pharmacy,Wuxi Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine Wuxi 214071,China
| | - Lian-Lin Su
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - De Ji
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - Tu-Lin Lu
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
| | - Chun-Qin Mao
- College of Pharmacy,Nanjing University of Chinese Medicine Nanjing 210046,China
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Zhang W, Zhang JB, He TY, Qin YW, Yang JJ, Li L, Ji D, Wu QN, Wang DH, Lu TL. [Research status and prospects of integration of habitat processing and processing of Chinese medicinal decoction pieces]. Zhongguo Zhong Yao Za Zhi 2022; 47:2565-2571. [PMID: 35718474 DOI: 10.19540/j.cnki.cjcmm.20211228.601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The integration of habitat processing and processing of Chinese medicinal decoction pieces(hereinafter referred to as "integration") has changed the traditional processing mode and can ensure the quality of Chinese medicinal decoction pieces from the source. This paper introduced the background of integration from the connotation and denotation of integration, relevant policies and regulations, and variety development. The present situation of integration was analyzed from the existing problems and current research progress, and the development suggestions were proposed. It is considered that although the integration is in line with the development trend of the industry with the advantages of improving the quality and standardizing the management of decoction pieces, there are still some problems, such as the lack of variety selection principles and production technical specifications, imperfect quality control stan-dards in the production process, and inadequate integration of standards and supervision. Therefore, it is suggested to determine the integrated variety selection principles and variety range as soon as possible, establish relevant technical specifications, improve quality control standards in the production process, and strengthen policy guidance and supervision to promote the healthy and orderly development of integration.
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Affiliation(s)
- Wei Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China College of Pharmacy, Anhui University of Chinese Medicine Hefei 230012, China Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology Hefei 230012, China
| | - Jiu-Ba Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Tian-Yu He
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Yu-Wen Qin
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Jun-Jie Yang
- Xinyang Agriculture and Forestry University Xinyang 464399, China
| | - Lin Li
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - De Ji
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Qi-Nan Wu
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Duan-Heng Wang
- Jiangsu Deyuan Pharmaceutical Co., Ltd. Lianyungang 222047, China
| | - Tu-Lin Lu
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
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5
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Qin YW, Fei CH, Zhang W, Li Y, Xu Z, Su LL, Ji D, Mao CQ, Lu TL. [Efficacy-related substances of blood-activating and stasis-resolving medicinals derived from Curcuma plants: a review]. Zhongguo Zhong Yao Za Zhi 2022; 47:24-35. [PMID: 35178908 DOI: 10.19540/j.cnki.cjcmm.20210817.603] [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: 06/14/2023]
Abstract
Derived from Curcuma plants, Curcumae Longae Rhizoma, Curcumae Rhizoma, Wenyujin Rhizoma Concisum, and Curcumae Radix are common blood-activating and stasis-resolving medicinals in clinical practice, which are mainly used to treat amenorrhea, dysmenorrhea, chest impediment and heart pain, and rheumatic arthralgia caused by blood stasis block. According to modern research, the typical components in medicinals derived from Curcuma plants, like curcumin, demethoxycurcumin, bisdemethoxycurcumin, curdione, germacrone, curcumol, and β-elemene, have the activities of hemorheology improvement, anti-platelet aggregation, anti-thrombosis, anti-inflammation, anti-tumor, and anti-fibrosis, thereby activating blood and resolving stasis. However, due to the difference in origin, medicinal part, processing, and other aspects, the efficacy and clinical application are different. The efficacy-related substances behind the difference have not yet been systematically studied. Thus, focusing on the efficacy-related substances, this study reviewed the background, efficacy and clinical application, efficacy-related substances, and "prediction-identification-verification" research method of blood-activating and stasis-resolving medicinals derived from Curcuma plants, which is expected to lay a theoretical basis for the future research on the "similarities and differences" of such medicinals based on integrated evidence chain and to guide the scientific and rational application of them in clinical practice.
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Affiliation(s)
- Yu-Wen Qin
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Cheng-Hao Fei
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Wei Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China School of Pharmacy, Anhui University of Chinese Medicine Hefei 230012, China
| | - Yu Li
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Zhen Xu
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Lian-Lin Su
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - De Ji
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Chun-Qin Mao
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
| | - Tu-Lin Lu
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China
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6
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Li K, Chen ZT, Qin YW. [Expression profiles of microRNA related to atherosclerosis in patients with OSA]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:304-309. [PMID: 30970398 DOI: 10.13201/j.issn.1001-1781.2019.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Indexed: 11/12/2022]
Abstract
Objective:Recent studies have demonstrated that obstructive sleep apnoea(OSA) may lead to atherosclerosis(AS), but the underlying mechanism remains unclear. MicroRNA(miRNA) may be involved in the gene regulation of AS and also in the occurrence and progression of OSA. The purpose of our study was to investigate the expression of atherosclerosis related serum miRNAs in OSA patients.Method: We screened 116 participants including normal controls(n=24), OSA alone(n=32),OSA patients with AS(n=32),and patients with AS but without OSA(n=28).qRT-PCR to analyze the microRNA profile was performed in these subjects.Clinical and blood test with lipid parameters were analysed using Spearman correlations.Result:Compared to normal controls, miRNA-148a-5p, miRNA-378c, miRNA-127-3p and miRNA-365a-3p were upregulated in the OSA, OSA-AS, and AS groups; miRNA-134-5p was only upregulated in the AS group, miRNA-365a-3p in the OSA-AS group was higher than that in the OSA alone group. The circulating atherosclerosis related miRNAs, including miRNA-148a-5p, miRNA-378c, miRNA-127-3p, miRNA-134-5p and miRNA-365a-3p all correlated with the carotid intima media thickness. Conclusion: Upregulation of miRNA-148a-5p, miRNA-365a-3p, miRNA-378c, miRNA-127-3p may be an early warning marker of atherosclerosis in OSA patients.
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Affiliation(s)
- K Li
- Department of Otolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
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Jiang CX, Ji D, Qiu JC, Su XN, Qin YW, Hao M, Li L, Lu TL, Li XK. Study on pharmacokinetics and tissues distribution of neomangiferin, mangiferin, timosaponin BII, Timosaponin BIII, and timosaponin AIII after oral administration of Anemarrhenae rhizoma extract in rats. Pharmacogn Mag 2019. [DOI: 10.4103/pm.pm_65_19] [Citation(s) in RCA: 2] [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: 11/04/2022] Open
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Chu L, Zhang J, Li YN, Li HY, Qin YW. [Clinical analysis of 24 cases of aortic dissection during pregnancy]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:32-39. [PMID: 28190313 DOI: 10.3760/cma.j.issn.0529-567x.2017.01.008] [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: 11/05/2022]
Abstract
Objective: To investigate the management and perinatal outcome of aortic dissection during pregnancy. Methods: 24 pregnant women with aortic dissection who delivered in Beijing Anzhen Hospital Affiliated to Capital Medical University from January 1st, 2006 to February 29th, 2016 were recruited. The clinical data, the management and the perinatal outcome were analyzed retrospectively. Results: (1) Clinical features: The average age of the patients was (29±4) years old. The clinical symptoms occurred from 5 gestational weeks to 1 month after delivery. The major symptoms were chest pain, and some complained migratory or radiating pains. There were 17 Stanford type A cases and 7 type B cases. The aortic widths were 2.9-10.0 cm, with the average of (5.6±1.7) cm. D-dimer level was 448-6 421 μg/L, with the average of (1 097±1 209) μg/L, and the fibrin degradation products were 4.1-52.1 mg/L, with the average of (10.2±9.5) mg/L.The white blood cell ranged (6.8-36.4)×10(9)/L, with the average of (29.4±4.2)×10(9)/L; and the neutrophil rate was 76.0%-97.6%, with the average of (84.6±6.3) %. (2) The treatment: ①19 patients underwent aorta surgeries. The surgeries included aortic root replacement with total aortic arch replacement plus stented elephant trunk implantation (Bentall+Sun's surgery), aortic root replacement (Bentall surgery), stent implantation, thoracic and abdominal aorta replacement. The aortic operation time of the 19 patients were 5 gestational weeks to 1 month after delivery. The relation between aortic operation and the termination of pregnancy: 4 patients underwent aorta surgery after termination of pregnancy, 9 patients had cesarean section and aorta surgery at the same time, 6 patients underwent aorta surgery before cesarean section. ② 5 patients did not receive arota surgery, 2 patients of type A dissection and 1 patient of type B dissection died before the surgery; 2 cases of type B dissection underwent conservative treatment. The termination time of pregnancy was 6-37 gestational weeks, with the average of (26±10) weeks. (3)Maternal and fetal outcomes: 20 patients survived after treatment (83%, 20/24) and 4 patients died (17%, 4/24). 10 cases were live births, including 4 full-term infants and 6 preterm premature infants. The birth weight of the neonates was 1 080-3 800 g, with the average of (2 302±764) g. Three of them were very low birth weight infants and 1 was low birth weight infant; 3 neonates had mild asphyxia. The neonates were followed up for 0.5 to 10 years, with the average time of (1.4±1.7) years. So far the infants' development was good. Conclusions: Pregnancy with aortic dissection is pernicious. Early identification, prompt diagnosis and prompt interventing of the vascular surgery are necessary to the safety of mother and fetus.
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Affiliation(s)
- L Chu
- Department of Obstetrics and Gynecology, Beijing Anzhen Hospital Affiliated to Capital Medical University, Beijing 100029, China
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Zhang BL, Ye Z, Xu RL, You XH, Qin YW, Wu H, Cao J, Zhang JL, Zheng X, Zhao XX. Overexpression of G100S mutation in PRKAG2 causes Wolff-Parkinson-White syndrome in zebrafish. Clin Genet 2013; 86:287-91. [PMID: 23992123 DOI: 10.1111/cge.12267] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 04/16/2013] [Revised: 08/28/2013] [Accepted: 08/28/2013] [Indexed: 11/29/2022]
Abstract
The Wolff-Parkinson-White (WPW) syndrome was believed to be associated with PRKAG2 gene mutations. In this study, we verified the pathopoiesis of G100S mutation, a novel mutation only discovered in Chinese patients with WPW, in cardiac disorder. Similar to R302Q, when overexpressed PRKAG2 G100S mutant in zebrafish, we observed a thicker heart wall, detected a decreased AMPK enzymatic activity by tissue AMPK kinase activity colorimetric technique, as well as examined an increased glycogen storage in heart wall using the method for periodic acid-Schiff staining, in comparison with the zebrafish without exogenous PRKAG2 (mock) or with wild-type PRKAG2 (WT). Taken together, we concluded PRKAG2 G100S mutation might contribute to impair the AMP-activated protein kinase function, which resulted in increased cardiac glycogen storage, serving as a pathogenesis for WPW syndrome in Chinese.
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Affiliation(s)
- B L Zhang
- Department of Cardiovascular Diseases, Changhai Hospital, Second Military Medical University, Shanghai, China
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Xu YF, Fu LL, Jiang CH, Qin YW, Ni YQ, Fan JW. Naloxone inhibition of lipopolysaccharide-induced activation of retinal microglia is partly mediated via the p38 mitogen activated protein kinase signalling pathway. J Int Med Res 2013; 40:1438-48. [PMID: 22971495 DOI: 10.1177/147323001204000422] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES To investigate the effects and underlying mechanism of action of naloxone on lipopolysaccharide (LPS)-induced activation of retinal microglia in vitro. METHODS Rat retinal microglia primary cultures were divided into four treatment groups: untreated; 1 μg/ml LPS for 12 h; 0.5, 1.0 or 2.0 μM naloxone for 30 min before LPS; 2.5 or 5.0 μM SB203580 for 12 h before LPS and naloxone. Levels of tumour necrosis factor (TNF)-α and interleukin (IL)-1β were determined by enzyme-linked immuno sorbent assay. Western blot analysis and double immunofluorescence were used to examine activation of the mitogen activated protein kinase (MAPK) signalling pathway. RESULTS LPS induced an increase in TNF-α and IL-1β in culture supernatants, which was dose-dependently inhibited by naloxone. Naloxone also dose-dependently inhibited LPS-induced increases in phosphorylated p38 MAPK. Pretreatment of cells with SB203580 attenuated the inhibitory effect of naloxone on TNF-α and IL-1β production. CONCLUSIONS Naloxone suppressed LPS-induced activation of cultured retinal microglia and this suppression appeared to occur partly through the p38 MAPK signalling pathway. Naloxone may have therapeutic potential in neuro degenerative diseases characterized by the activation of microglia.
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Affiliation(s)
- Y F Xu
- Department of Ophthalmology, Eye, Ear, Nose and Throat Hospital, Fudan University School of Medicine, Shanghai, China
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Wu H, Shen Q, Lang XL, Zhang TH, Qin YW, Zhang GY. [Effect of ICAM-1/LFA-1 on hypoxia/reoxygenation injury of cardiomyocytes mediated by neutrophils]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2001; 17:227-230. [PMID: 21189616] [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: 05/30/2023]
Abstract
AIM To observe the effect of hypoxia/reoxygenation on the adherence of neutrophils to cardiomyocytes and to investigate the effect of ICAM-1/LFA-1 on hypoxia/reoxygenation injury of cardiomyocytes mediated by neutrophils. METHODS Count adhered neutrophils to cardiomyocytes suffering hypoxia, hypoxia/reoxygenation and normal culture, as well as adhered neutrophils that were blocked by anti ICAM-1 and LFA-1 monoclonal antibodies. Release of lactate dehydrogenase (LDH) was determined as injury index of cardiomyocytes. RESULTS Adherence of with normal culture group (P < 0.01). The neutrophils to cardiomyocytes with hypoxia/reoxygenation were significantly increased compared lease of LDH by cardiomyocytes was also significantly increased (P < 0.01). There was no significant difference between hypoxia group and normal control (P > 0.05). The adherence of neutrophils to hypoxia/reoxygenation cardiomyocytes was significantly inhibited by anti-ICAM-1 and anti-LFA-1 antibody compared with normal culture group (P < 0.01). While release of LDH markedly decreased (P < 0.01). CONCLUSIONS Hypoxia/reoxygenation increased the adherence of neutrophils to cardiomyocytes. ICAM-1 and LFA-1 mediated the enhanced adherence of neutrophils to hypoxia/reoxygenation cardiomyocytes. Anti-ICAM-1 and anti-LFA-1 antibody attenuated the cytotoxic effects of neutrophils on hypoxia/reoxygenated cardiomyocytes. These results suggested that the damage of neutrophils on cardiomyocytes is partly mediated by ICAM-1/LFA-1. Anti ICAM-1 and LFA-1 antibody are both beneficial in protecting hypoxia/reoxygenation cardiomyocytes from injury mediated by neutrophils.
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Affiliation(s)
- H Wu
- Department of Cardiovasology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
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12
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Jing Q, Xin SM, Zhang WB, Wang P, Qin YW, Pei G. Lysophosphatidylcholine activates p38 and p42/44 mitogen-activated protein kinases in monocytic THP-1 cells, but only p38 activation is involved in its stimulated chemotaxis. Circ Res 2000; 87:52-9. [PMID: 10884372 DOI: 10.1161/01.res.87.1.52] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Oxidized LDLs (OxLDLs) have been shown to be involved in recruitment of blood monocytes into the arterial subendothelial space, which is the earliest step in atherogenesis, but the underlying molecular mechanisms are poorly understood. The present study demonstrated that lysophosphatidylcholine (LPC), a major phospholipid component of OxLDL, strongly evoked phosphorylation and activation of p38 and p42/44 mitogen-activated protein kinases in monocytic cells. The stimulation of p38 and p42/44 occurred in a dose- and time-dependent manner, reaching the maximal activation at 25 microg/mL LPC within 5 minutes. Interestingly, inhibition of p38 activation by OxLDL or LPC, using its selective inhibitors (SB203580 and SKF86002), completely blocked OxLDL- or LPC-stimulated chemotaxis of THP-1 cells, which was measured in a transwell chemotaxis assay. In contrast, inhibition of p42/44 activation by its potent inhibitor (PD98059) did not block OxLDL- or LPC-stimulated chemotaxis. Moreover, expression of a p38 dominant-negative mutant (p38AF) reduced cell chemotaxis significantly. In addition, activation of p38 by LPC was apparently mediated neither by scavenger receptors nor by tyrosine kinase receptors. It was, however, effectively blocked by pertussis toxin and substantially reduced by phospholipase C inhibitor (U73122) and phosphatidylinositol 3-kinase inhibitors (wortmannin and LY294002). LPC also inhibited forskolin-stimulated cAMP accumulation in a pertussis toxin-sensitive manner, indicating that Gi/Go proteins likely mediated the effects of LPC. Our results suggested that OxLDL/LPC efficiently activated both p38 and p42/44, but only the activation of p38 was functionally associated with OxLDL-/LPC-induced chemotaxis in THP-1 cells.
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Affiliation(s)
- Q Jing
- Shanghai Institute of Cell Biology, Chinese Academy of Sciences, and Department of Cardiology, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
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13
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Jing Q, Xin SM, Cheng ZJ, Zhang WB, Zhang R, Qin YW, Pei G. Activation of p38 mitogen-activated protein kinase by oxidized LDL in vascular smooth muscle cells: mediation via pertussis toxin-sensitive G proteins and association with oxidized LDL-induced cytotoxicity. Circ Res 1999; 84:831-9. [PMID: 10205151 DOI: 10.1161/01.res.84.7.831] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Oxidized low-density lipoproteins (oxLDL) have been shown to play a crucial role in atherosclerosis, but the underlying molecular mechanisms have not been fully understood. The present study showed that oxLDL strongly evoked phosphorylation and activation of p38 mitogen-activated protein kinase (MAPK) in rat vascular smooth muscle cells (VSMCs) in concentration- and time-dependent manners, reaching the maximal activation at 100 microg/mL within 5 minutes. The results from immunofluorescence staining also revealed that p38 MAPK was activated by oxLDL in 5 minutes, and the activated p38 MAPK was translocated from cytoplasm to nucleus of VSMCs in 15 minutes. Activation of p38 MAPK by oxLDL was apparently not mediated by their classical scavenger receptors and was not affected by tyrosine kinase inhibitors. However, activation of p38 MAPK was effectively blocked by pretreatment with pertussis toxin and was significantly reduced by phospholipase C inhibitor U-73122. OxLDL also inhibited forskolin-stimulated cAMP accumulation and increased inositol phosphate formation. More interestingly, inhibition of p38 MAPK by its specific inhibitor SB203580 significantly blocked oxLDL-induced cytotoxicity (increased leakage of cytoplasmic lactate dehydrogenase to the culture medium, reduced [3H]thymidine incorporation, and attenuated mitochondrial metabolism of tetrazolium salt, (3-(4, 5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-s ulfophenyl)- 2H-tetrazolium), MTS) in VSMCs, and pretreatment with pertussis toxin also inhibited oxLDL-induced cytotoxicity. Taken together, our data clearly demonstrated that oxLDL effectively activated p38 MAPK in VSMCs, which was likely mediated via pertussis toxin-sensitive G proteins, and the p38 activation was functionally associated with oxLDL-induced cytotoxicity in VSMCs.
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MESH Headings
- Animals
- Aorta, Thoracic/cytology
- Arteriosclerosis/metabolism
- Calcium-Calmodulin-Dependent Protein Kinases/metabolism
- Cell Nucleus/metabolism
- Cells, Cultured
- Cyclic AMP/metabolism
- Cytotoxins/metabolism
- Dextrans/pharmacology
- Enzyme Inhibitors/pharmacology
- GTP-Binding Proteins/physiology
- Imidazoles/pharmacology
- L-Lactate Dehydrogenase/metabolism
- Lipoproteins, LDL/metabolism
- Lipoproteins, LDL/pharmacology
- Male
- Mitogen-Activated Protein Kinases
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Oxidation-Reduction
- Pertussis Toxin
- Phosphorylation
- Pyridines/pharmacology
- Rats
- Rats, Sprague-Dawley
- Signal Transduction/physiology
- Type C Phospholipases/metabolism
- Tyrphostins/pharmacology
- Virulence Factors, Bordetella/pharmacology
- p38 Mitogen-Activated Protein Kinases
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Affiliation(s)
- Q Jing
- Shanghai Institute of Cell Biology, Chinese Academy of Sciences, Shanghai, People's Rupublic of China
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Abstract
A 17-year-old girl had idiopathic long QT syndrome and suffered from recurrent syncopal spells, which were triggered by vigorous physical or emotional stress. She received left cervicothoracic sympathetic ganglionectomy with thoracoscope through an intercostal approach which worked satisfactorily.
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Affiliation(s)
- L Chen
- Department of Cardiovasology, Changhai Hospital, Shanghai, China
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15
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Hu CH, Qin YW. Digital color encoding and its application to the moirétechnique. Appl Opt 1997; 36:3682-3685. [PMID: 18253391 DOI: 10.1364/ao.36.003682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A moiré pattern color-encoding technique in which a digital image-processing system is used is described. The technique can display color moiré patterns with color sequences that represent the fringe orders. This technique is simple and fast and can be performed automatically. Experimental results demonstrating the feasibility of the technique are reported.
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16
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Zheng X, Zhang TH, Ding HJ, Wang CH, Tan JJ, Chen FJ, Qin YW. Changes of plasma immuno-reactive beta-endorphin content in patients with congestive heart failure and their clinical significance. Chin Med J (Engl) 1991; 104:814-7. [PMID: 1752142] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Immunoreactive beta-endorphin (ir-beta-EP) content in plasma was measured by radioimmunoassay in 101 cardiac patients and 30 normal subjects. The results showed that plasma ir-beta-EP levels in patients of Class II (New York Heart Association Classification), Class III and Class IV were significantly higher than those in the normal group and those in patients of Class I (43.14 +/- 2.80, 54.25 +/- 4.47, 79.28 +/- 8.96 ng/L vs 24.23 +/- 2.13, and 24.98 +/- 3.35 ng/L, respectively, P less than 0.01). Plasma concentration of ir-beta-EP in patients complicated with atrial fibrillation was significantly higher than that in patients without atrial fibrillation (56.27 +/- 4.13 vs 44.66 +/- 3.41 ng/L, P less than 0.05). Ir-beta-EP contents in plasma were correlated positively to the cardiothoracic ratios (r = 0.63, P less than 0.001) and PEP/LVET ratios (r = 0.33, P less than 0.01), and were correlated negatively to the left ventricular ejection fraction and axis shortening (r = -0.41 and r = -0.39, P less than 0.001). These results indicated that plasma ir-beta-EP content may serve as a parameter in evaluating cardiac dysfunction.
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Affiliation(s)
- X Zheng
- Department of Cardiology, Changhai Hospital, Second Military Medical College, Shanghai
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