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Zhang B, Su D, Song Y, Li H, Chen C, Liao L, Zhang H, Luo J, Yang M, Zhu G, Ai Z. Yueju volatile oil plays an integral role in the antidepressant effect by up-regulating ERK/AKT-mediated GLT-1 expression to clear glutamate. Fitoterapia 2023; 169:105583. [PMID: 37336418 DOI: 10.1016/j.fitote.2023.105583] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/14/2023] [Accepted: 06/14/2023] [Indexed: 06/21/2023]
Abstract
Phytochemical investigation of the volatile oil of Yueju (YJVO) and its constituent herbs induced the detection of 52 compounds in YJVO, mainly monoterpenes and sesquiterpenes as well as a small amount of aromatic and aliphatic compounds. 5 of these compounds were found only in the YJVO instead of the volatile oil of its constituent herbs. The anti-depressant effect of YJVO was proved by behavioral tests in chronic unpredictable mild stress (CUMS) mice. An acute oral toxicity evaluation determined the LD50 of YJVO was 5.780 mL/kg. Doppler ultrasound and laser speckle imaging have detected that the YJVO could improve depression-related cerebral blood flow. In addition, related neurotransmitters and proteins were analyzed through targeted metabolomics and immunofluorescence. The potential antidepressant mechanisms of YJVO related to significantly decreasing Glu in CUMS mice by up-regulating the ERK/AKT-mediated expression of GLT-1.
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Affiliation(s)
- Bike Zhang
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Dan Su
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Yonggui Song
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Huizhen Li
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Changlian Chen
- Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang 330006, China
| | - Liangliang Liao
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Hongjie Zhang
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Jian Luo
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Ming Yang
- Jiangxi Guxiang Jinyun Comprehensive Health Industry Co., Ltd., Nanchang, China
| | - Genhua Zhu
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China
| | - Zhifu Ai
- Key Laboratory of Evaluation of Chinese Medicine Efficacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, Jiangxi Province, China.
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Li Z, Song Y, Xu W, Chen J, Zhou R, Yang M, Zhu G, Luo X, Ai Z, Liu Y, Su D. Pulsatilla chinensis saponins improve SCFAs regulating GPR43-NLRP3 signaling pathway in the treatment of ulcerative colitis. J Ethnopharmacol 2023; 308:116215. [PMID: 36806339 DOI: 10.1016/j.jep.2023.116215] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 10/19/2022] [Revised: 01/19/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pulsatilla decoction has been extensively used to treat ulcerative colitis (UC) in recent years. Pulsatilla chinensis saponin (PRS), the active ingredient of its monarch medicine Pulsatilla chinensis (Bunge) Regel, plays a crucial role in the treatment of UC, but its specific mechanism of action has not been fully elucidated. AIM OF THE STUDY This study aims to investigate the protective effect and possible mechanism of PRS on DSS-induced ulcerative colitis in rats. MATERIALS AND METHODS In this study, the DSS-induced colitis model was used to explore the metabolism and absorption of PRS under UC, detect the content of short-chain fatty acids (SCFAs) in colon tissue, the expression of receptor G Protein-Coupled Receptor 43 (GPR43) protein and inflammasome NLRP3, and observe the expression level of IL-1β, IL-6 and TNF-α in colon tissue. The protective effect of the PRS was also observed. RESULTS It was found that in the UC group, the absorption rate and extent of drugs increased, and the elimination was accelerated. Compared with the control group, PRS increased the content of short-chain fatty acids (SCFAs) in colon tissue, promoted the expression of SCFAs receptor GPR43 protein, inhibited the activation of the NLRP3 inflammasome, and decreased the content of IL-1β, IL-6 and TNF-α. PRS protects the colon in DSS-induced inflammatory bowel disease by increasing the content of SCFAs, promoting the expression of GPR43 protein, inhibiting the activation of the NLRP3 inflammasome, and reversing the increase in IL-1β, IL-6 and TNF-α levels. CONCLUSIONS PRS can increase the content of colonic SCFAs, activate the GPR43-NLRP3 signaling pathway, and reduce the levels of pro-inflammatory cytokines, thereby improving the symptoms of DSS-induced colitis.
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Affiliation(s)
- Zexie Li
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Yonggui Song
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Weize Xu
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Jingbin Chen
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Rou Zhou
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Ming Yang
- Jiangxi Guxiang Jinyun Comprehensive Health Industry Co., Ltd., Nanchang, China
| | - Genhua Zhu
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Xiaoquan Luo
- SPF Exeriment mice and rats Production base in Jiangxi Province, China
| | - Zhifu Ai
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China
| | - Yali Liu
- Key Laboratory of Pharmacodynamics and Safety Evaluation, Health Commission of Jiangxi Province, 1688 Meiling Road, Nanchang, 330006, China; Key Laboratory of Pharmacodynamics and Quality Evaluation on anti-Inflammatory Chinese Herbs, Jiangxi Administration of Traditional Chinese Medicine; Nanchang Medical College, 1688 Meiling Road, Nanchang, 330006, China.
| | - Dan Su
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficcacy (Prevention and Treatment of Brain Disease with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, China.
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Wang T, Song Y, Ai Z, Liu Y, Li H, Xu W, Chen L, Zhu G, Yang M, Su D. Pulsatilla chinensis saponins ameliorated murine depression by inhibiting intestinal inflammation mediated IDO1 overexpression and rebalancing tryptophan metabolism. Phytomedicine 2023; 116:154852. [PMID: 37167824 DOI: 10.1016/j.phymed.2023.154852] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/16/2023] [Accepted: 05/01/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND Current antidepressant therapy remains unsatisfactory due to the complex pathogenesis. Emerging evidence suggested that depression is associated with inflammatory bowel disease (IBD), intestinal inflammation is an increasingly accepted factor that influences depression, but the mechanism is unclear. PURPOSE In the current study, we determined whether Pulsatilla chinensis saponins (PRS), a phytomedicine from Pulsatilla chinensis (Bunge) Regel with excellent anti-IBD effect, could improve the depression. Furthermore, we investigated the mechanisms to explore the relationship between IBD and depression and provide new source for the urgent development of antidepressants from phytomedicine. METHODS The antidepressant activity of PRS was accessed by behavioral test and multichannel technology in depression mice induced by Chronic Unpredictable Mild Stress (CUMS). 16S rDNA-based microbiota and RNA-seq in colon was used to explore potential intestinal metabolism affected by PRS. To illustrate the underlying mechanisms of anti-depression effect of PRS, targeted metabolomics, ELISA assay, immunofluorescence staining, Western Blot, and qPCR were carried out. RESULTS The results clarified that CUMS induced depression with tryptophan (Trp) metabolism and intestinal inflammation. PRS effectively suppressed the depression and acted as a regulator of Trp/kynurenine (Kyn) metabolic and intestinal inflammation confirmed by analysis of microflora and colon RNA. Meanwhile PRS reduced interferon gamma (IFN-γ), inhibited JAK1-STAT1 phosphorylation, decreased IDO1 levels to protect against the overactivity of Trp/kyn path, suggesting that IFN-γ activated IDO1 probably a significant target for PRS to exert anti-depression effects. To further confirm the mechanism, this research expressed that PRS improved IDO1 activity and depressive behavior in mice with IFN-γ-induced depression. Furthermore, the therapeutic effect of 1-methyl-tryptophan (1-MT) well known as an IDO1 inhibitor in depression and clinically used anti-UC drug Mesalazine (MS) was demonstrated to confirm the potential mechanism. CONCLUSION The study is the first to reveal the antidepressant effect of PRS and further demonstrate its potential therapeutic targets. In addition, it also clarifies that the Trp/kyn pathway is the crosstalk between IBD and depression and provides new choice for depression treatment. And it also provides an important basis for the follow-up development and exploration of anti-intestinal antidepressants.
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Affiliation(s)
- Tingting Wang
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Yonggui Song
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Zhifu Ai
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Yali Liu
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Huizhen Li
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Weize Xu
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Liling Chen
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Genhua Zhu
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Ming Yang
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Jiangxi Guxiang Jinyun Comprehensive Health Industry Co., Ltd., Nanchang, China
| | - Dan Su
- Key Laboratory of Evaluation of Traditional Chinese Medicine Efficacy (Prevention and Treatment of Brain Diseases with Mental Disorders), Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Dysfunction, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China.
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Su D, Luo J, Ge J, Liu Y, Jin C, Xu P, Zhang R, Zhu G, Yang M, Ai Z, Song Y. Raw and Wine Processed Schisandra chinensis Regulate NREM-Sleep and Alleviate Cardiovascular Dysfunction Associated with Insomnia by Modulating HPA Axis. Planta Med 2022; 88:1311-1324. [PMID: 34911135 DOI: 10.1055/a-1721-4971] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Clinical studies have shown that insomnia and anxiety are usually accompanied by cardiovascular dysfunction. In traditional Chinese medicine, Schisandra chinensis (SC) and wine processed Schisandra chinensis (WSC) are mainly used for the treatment of dysphoria, palpitation and insomnia. However, little attention was paid to its mechanism. In this study, we monitored the effect of SC and WSC on the nervous system and cardiovascular system of free-moving rats in the real-time. Our results show that SC and WSC can alleviate cardiovascular dysfunction while promoting sleep, and we further explored their potential mechanisms. HPLC-QTOF-MS was used for the quality control of chemical components in SC and WSC. Data sciences international (DSI) physiological telemetry system was applied to collect the electroencephalogram (EEG), electrocardiogram (ECG) and other parameters of free-moving rats to understand the effects of long-term intake of SC and WSC on rats. The content of Cortisol (CORT), neurotransmitters and amino acids in rat pituitary and hypothalamus were analyzed by UPLC-MS to determine the activity of HPA axis. The expression of melatonin receptor MT1 was analyzed by immunofluorescence technique. Our results suggested that SC and WSC may play the role of promoting sleep by increasing the expression level of melatonin receptor MT1 in hypothalamus, and modulate the activity of HPA axis by regulating the levels of the related neurotransmitters and amino acid, so as to improve the abnormal cardiovascular system of rats. This study may provide theoretical support for explicating the advantages of SC and other phytomedicines in the treatment of insomnia.
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Affiliation(s)
- Dan Su
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Jian Luo
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Junqi Ge
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Yali Liu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Chen Jin
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Pengfei Xu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Ruowen Zhang
- Shenzhen Honsan Health Industry Group, Shenzhen, China
| | - Genhua Zhu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Ming Yang
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Zhifu Ai
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Yonggui Song
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, China
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Wu Z, Jiao Y, Liu F, Ai Z, Zhang Q. Reducing temperature sensitivity of gas measurement using chirped-modulated photoacoustic spectroscopy. Rev Sci Instrum 2022; 93:094902. [PMID: 36182511 DOI: 10.1063/5.0106669] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/17/2022] [Indexed: 06/16/2023]
Abstract
Resonance frequency drift caused by a change in temperature greatly limits the application of high-Q resonators with high temperature sensitivity in photoacoustic (PA) gas detection systems. In this work, a chirp-wavelength combined modulation method was designed by incorporating a real-time frequency scanning in wavelength-modulated PA spectroscopy to reduce the influence of temperature changes on measurement. Theoretical analysis shows that the chirp rate depends on the precision requirements and the cutoff frequency of the cascaded low-pass filter. Trace acetylene measurement experiment at varying temperature verified that the proposed method can significantly reduce the temperature sensitivity within a preset temperature range. Thus, this method can effectively reduce the temperature sensitivity of a high-Q resonator for improving the measurement accuracy and detection limit in trace gas detection.
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Affiliation(s)
- Z Wu
- State Key Laboratory of Electric Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Y Jiao
- State Key Laboratory of Electric Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - F Liu
- State Key Laboratory of Electric Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Z Ai
- State Key Laboratory of Electric Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Q Zhang
- State Key Laboratory of Electric Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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Song Y, Su D, Yang Y, Zeng Q, Liao L, Chen C, Yang M, Zhu G, Zhang R, Ai Z, Li Y. Two Species Origins Comparison of Herba Patriniae based on Their Ingredients Profile by UPLC-QTOF/MS/MS and Orthogonal Partial Least Squares Discriminant Analysis. Chem Biodivers 2022; 19:e202100961. [PMID: 35979749 DOI: 10.1002/cbdv.202100961] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 12/01/2021] [Accepted: 08/15/2022] [Indexed: 11/10/2022]
Abstract
Herba Patriniae (HP) is widely used as a medicinal and edible material in China. Besides food value, HP attracts more attention due to its medicinal potential. Patrinia villosa Juss. ( PV ) and Patrinia scabiosaefolia Fisch. ( PS ) are the two species origins of HP. These two of HP show different effects on cell proliferation, migration, angiogenesis and anti-diabetic. As we have previously reported, PV and PS show significant differences on their anti-inflammatory ability in the same experimental model. Comparing the ingredient profiles of two different sources will not only facilitate the understanding of their medicinal effects, but also help the development and research of new activities. However, still now, there is no systematic and detailed study to compare the components of PV and PS . In present study, ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was employed to achieve a high-throughput qualitative and thorough analysis of the chemical composition spectrum of HP. A total of 164 compounds were identified, among these compounds, 127 compounds were identified from PV , and 107 compounds were identified from PS . Most of the chemical components was discovered for the first time. Flavonoids, saponins, terpenoids and organic acids, as the main ingredients in PV and PS were 45.45%vs 28.46%, 12.61% vs 32.09%, 14.33% vs 22.38% and 14.58% vs 6.79%, respectively. Flavonoids are the main components of PV , while PS is rich in saponins. PV and PS were classified into two groups by principal component analysis (PCA) and screened out the main molecular differences responsible by orthogonal partial least squares discriminant analysis (OPLS-DA). All the results will be a guide for the quality control, functional activity research, or better clinic use based on the ingredients profile between these two species. Besides, this first study on ingredients profile of two species origins will be beneficial for potential and best resources utilization of both PV and PS .
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Affiliation(s)
- Yonggui Song
- Jiangxi University of Traditional Chinese Medicine, Laboratory Animal Science and Technology Center, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, 330000, Nanchang, CHINA
| | - Da Su
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Yanyan Yang
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Qiang Zeng
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Liangliang Liao
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Changlian Chen
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Ming Yang
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Genhua Zhu
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Ruowen Zhang
- Shenzhen Honsan Health Industry Group, Shenzhen Honsan Health Industry Group, 2028 Shenyan Road, Haishan street, Shenzhen, China, Shenzhen, CHINA
| | - Zhifu Ai
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
| | - Yanzhen Li
- Jiangxi University of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, Nanchang, CHINA
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Wang T, Song Y, Xu H, Liu Y, He H, Zhou M, Jin C, Yang M, Ai Z, Su D. Study on the mechanism of reducing biofilm toxicity and increasing antioxidant activity in vinegar processing phytomedicines containing pentacyclic triterpenoid saponins. J Ethnopharmacol 2022; 290:115112. [PMID: 35181486 DOI: 10.1016/j.jep.2022.115112] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 11/09/2021] [Revised: 01/29/2022] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pentacyclic triterpenoid saponin (PTS) is a kind of particular chemicals with various pharmacological activities, as well as surface activity, mucosal irritation and hemolysis. PTS is closely related to the exertion of efficacy or adverse reactions in plant medicines rich in this component. For the better clinical application of natural resources, how to reduce toxicity and enhance curative efficacy is an important problem which needs to be solved at present. Till now, there has been few studies directly investigating the problem. AIM OF STUDY Through comparison study of Radix Bupleuri (Chai hu) and Pulsatilla chinensis (Bai tou weng), which are typical traditional Chinese medicines containing PTS, explore the potential change rule of material basis and the mechanism of detoxification and synergistic effect of vinegar processing. MATERIALS AND METHODS Composition change rule after vinegar processing was applied by UPLC-QTOF-MS/MS coupled with principal component analysis (PCA). Based on our previous research, this paper expounded the action mechanism from the perspective of reducing biofilm toxicity and increasing antioxidant activity. Direct toxicity reducing information was obtained at the cellular level including cellular morphology, MTT assays, western blots and RT-PCR in L02 cells with overload sphingomyelin (SM). The synergistic effect was investigated through histological examinations, mesenteric hemorheology, ELISA, flow cytometry and confocal microscopy. RESULTS It was found that the structure of PTS take place a series of chemical reactions in the process of vinegar processing which enabled the more toxic components transformed into less toxic components and components with clear efficacy, so as to achieve the purpose of detoxification and synergistic effect. The results indicated that the mechanism of detoxification in vinegar processing was that vinegar processing could act on SM, cause less balance disturbance to sphingomyelin/ceramide (SM/Cer), inhibit apoptosis and then alleviate toxicity. In addition, the pharmacodynamic results showed that the vinegar processing could have an obvious synergistic effect through anti-oxidant stress. CONCLUSIONS By changing the structures of the PTS, the SM/Cer disrupt was reduced and the antioxidant activity was enhanced, so as to decrease toxicity and increase efficiency in vinegar processing phytomedicines containing PTS.
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Affiliation(s)
- Tingting Wang
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China
| | - Yonggui Song
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China
| | - Huanhua Xu
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China; Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Yali Liu
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China
| | - Hongwei He
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China
| | - Mingyue Zhou
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China
| | - Chen Jin
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China; Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Ming Yang
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China; Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Zhifu Ai
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China.
| | - Dan Su
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang, 330006, Jiangxi Province, China.
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Su D, Liao L, Zeng Q, Liao Z, Liu Y, Jin C, Zhu G, Chen C, Yang M, Ai Z, Song Y. Study on the new anti-atherosclerosis activity of different Herba patriniae through down-regulating lysophosphatidylcholine of the glycerophospholipid metabolism pathway. Phytomedicine 2022; 94:153833. [PMID: 34798520 DOI: 10.1016/j.phymed.2021.153833] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [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: 08/03/2021] [Revised: 10/14/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Atherosclerosis (AS) is a multifactor cardiovascular disease characterized by chronic inflammation. The safety of long-term medication is the focus of clinical treatment selection and application. It is urgent to develop more high-efficiency and low side effects drugs to treat AS. Therefore, the screening of anti-AS drugs with high efficiency and low toxicity from phytomedicine has attracted more and more attention. PURPOSE The aim of this study was to explore the new pharmacological effect of Herba patriniae against AS, to find the best origin and extraction part of Herba patriniae, furthermore, to reveal its potential action mechanism. METHODS Apolipoprotein E gene-knockout (ApoE-/-) mice were orally administered with different extracts of Patrinia villosa Juss (PVJ) and Patrinia scabiosaefolia Fisch (PSF). Their anti-AS effect was comprehensively evaluated by small animal ultrasound, HE staining, Oil-Red O staining, platelet aggregation rate and blood lipid level. Lipid metabolomics and network pharmacology were used to study the mechanism of drug action. Finally, the expression of related proteins were detected by western blots and immunofluorescence. RESULTS PVJ EtOAc extract and PSF EtOAc extract could significantly reduce vascular plaque, liver inflammation, platelet aggregation and blood lipid levels in AS model. By comparison, the effect of PVJEE was better than that of PSFEE. Furthermore, the results of differential metabolites indicated that PVJEE may inhibit the apoptosis of vascular endothelial cells, proliferation and migration of smooth muscle cells by reversing lysophosphatidylcholine (LPC) in the glycerophospholipid metabolic pathway, so as to play an anti-AS role. This result was double verified by KEGG based metabolic pathway enrichment analysis and related protein expression study. CONCLUSION By changing glycerophospholipid metabolism pathway, Herba patriniae can significantly regulate lipid metabolism and inflammatory level, showing the development potential of anti-AS, which provides new candidate drugs and good prospects for the safe treatment of AS. In addition, through comparison, this study also confirmed that PVJEE was the best origin and extraction part of anti-AS.
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Affiliation(s)
- Dan Su
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Liangliang Liao
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Qiang Zeng
- College of Pharmacy,Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Zhou Liao
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Yali Liu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Chen Jin
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Genhua Zhu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Changlian Chen
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Zhifu Ai
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China..
| | - Yonggui Song
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi Province, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China..
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Ai Z, He H, Wang T, Chen L, Huang C, Chen C, Xu P, Zhu G, Yang M, Song Y, Su D. Validation of the Thyrotoxicosis-associated Insomnia Model Induced by Thyroxine through Sympathetic Stimulation: Face, Construct and Predictive Perspectives. Exp Neurobiol 2021; 30:387-400. [PMID: 34983880 PMCID: PMC8752319 DOI: 10.5607/en21023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/27/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 11/25/2022] Open
Abstract
Insomnia has become a common central nervous system disease. At present, the pathogenesis of insomnia is not clear. Animal models can help us understand the pathogenesis of the disease and can be used in transformational medicine. Therefore, it is very necessary to establish an appropriate model of insomnia. Clinical data show that insomnia patients with high levels of thyroxine and often accompanied by cardiovascular problems, a common mechanism underlying all of these physiological disruptions is the sympathetic nervous system. Combined with the characteristics of chronic onset of clinical insomnia, an insomnia model induced by long-term intraperitoneal injection of thyroid hormone has been created in our laboratory. In this paper, the insomnia-like state of the model was evaluated based on three validity criteria. Face validity has been demonstrated in metabolism, the Morris water maze, electrocardiogram (ECG) and electroencephalogram (EEG). Structure validity has been proved by the results of targeted metabolomics. After treatment with diazepam, a commonly used clinical anti-insomnia drug, the above physiological and pathological disorders were reversed. The results of comprehensive analysis show that the established thyrotoxicosis-associated insomnia model meets the validity requirement to establish an appropriate animal model of insomnia. The model presented in this article might help to study pathogenetic mechanisms of clinical insomnia, as well as to test promising methods of insomnia treatment.
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Affiliation(s)
- Zhifu Ai
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Hongwei He
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Tingting Wang
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Liling Chen
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Chunhua Huang
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Changlian Chen
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Pengfei Xu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Genhua Zhu
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Ming Yang
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University o
| | - Yonggui Song
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
| | - Dan Su
- Key Laboratory of depression animal model based on TCM syndrome, Jiangxi Administration of traditional Chinese Medicine, Jiangxi Key Laboratory of TCM for prevention and treatment of brain diseases with cognitive impairment, Jiangxi University of Chinese
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Liu Y, Zhou M, Yang M, Jin C, Song Y, Chen J, Gao M, Ai Z, Su D. Pulsatilla chinensis Saponins Ameliorate Inflammation and DSS-Induced Ulcerative Colitis in Rats by Regulating the Composition and Diversity of Intestinal Flora. Front Cell Infect Microbiol 2021; 11:728929. [PMID: 34804990 PMCID: PMC8602866 DOI: 10.3389/fcimb.2021.728929] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [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: 06/22/2021] [Accepted: 10/01/2021] [Indexed: 12/19/2022] Open
Abstract
Pulsatilla chinensis (Bunge) Regel is a commonly used Chinese medicine for clearing away heat and detoxification, cooling blood, stopping dysentery, and anti-inflammatory effects. Pulsatilla chinensis saponins (PRS) have been identified to be responsible for producing these pharmacological activities. Studies have shown that Pulsatilla decoction has a good therapeutic effect on ulcerative colitis (UC), however, the therapeutic effect of PRS on UC has not been reported. Therefore, the purpose of this study was to investigate the possible anti-UC activity of PRS using a dextran sulfate sodium (DSS)-induced rat model, and further study the mechanism of PRS in the treatment of UC. The fecal and colon samples were collected from rats to monitor the changes in the composition and diversity of the intestinal flora, and pathological colon sections were also made to examine the mesenteric hemorheological characteristics. The results showed that PRS significantly reduced the mesenteric blood flow in UC rats and significantly alleviated the inflammatory response, which indicates that saponins are involved in the anti-UC effects of PRS. At the same time, it is also suggested that the regulation of intestinal flora by Pulsatilla chinensis saponins is an important pathway for its anti-UC activity, which may be ascribed to the increase in beneficial bacteria like norank_F_Muribaculaceae and norank_F_norank_O_Clostridia_UCG-014, and decrease in the harmful Bacteroides.
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Affiliation(s)
- Yali Liu
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China.,Department of Pharmacy, Nanchang Medical College, Nanchang, China
| | - Mingyue Zhou
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Chen Jin
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Yonggui Song
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Jingbin Chen
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Meng Gao
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Zhifu Ai
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Dan Su
- Key Laboratory of Depression Animal Model Based on Traditional Chinese Medicine (TCM) Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment, Jiangxi University of Chinese Medicine, Nanchang, China
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Huang NY, Liu YY, Yu JW, Xu YW, Zheng XH, Zhang DH, Ai Z, Wu HS, Diao XW, Ye XQ, Yi CY, Mao HP, Yang X, Yu XQ, Chen W. [Current status of hyperkalemia in dialysis patients in China]. Zhonghua Yi Xue Za Zhi 2021; 101:3466-3471. [PMID: 34775703 DOI: 10.3760/cma.j.cn112137-20210802-01710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence and associated factors of hyperkalemia in dialysis patients. Methods: Patients underwent hemodialysis (HD) and peritoneal dialysis (PD) from multi-center databases were recruited from January 2017 to December 2019, and those aged ≥18 years and with dialysis duration ≥3 months were included to analyze the prevalence and related factors of hyperkalemia. Results: A total of 12 364 patients were enrolled in the study, and 6 836 cases were men. The average age of the patients was (51±15) years. Among these patients, 4 230 cases underwent HD while 8 134 received PD. Hyperkalemia was detected in 20.7% (2 554/12 364) of the patients while hypokalemia was found in 17.0%(2 102/12 364) of the patients. Multivariate logistic regression showed that HD (OR=2.25, 95%CI: 1.54-3.30), diabetes mellitus (DM) (OR=1.65, 95%CI: 1.17-2.32), high body mass index (BMI) (OR=1.06, 95%CI: 1.03-1.09), high levels of serum albumin (OR=1.04, 95%CI: 1.01-1.07) and phosphorus (OR=3.12, 95%CI: 2.44-4.00), low levels of serum bicarbonate (OR=0.89, 95%CI: 0.87-0.92), triglycerides (OR=0.76, 95%CI: 0.68-0.85) and creatinine (OR=0.95, 95%CI: 0.90-0.99), usage of angiotensin converting enzyme inhibitor/Angiotensin Ⅱ receptor antagonist (ACEI/ARB, OR=1.38, 95%CI: 1.11-1.72) and beta-blocker (OR=1.32, 95%CI: 1.07-1.64) were associated with hyperkalemia. Conclusions: Hyperkalemia occurred in 20.7% of the dialysis patients. HD, DM, high BMI, high levels of serum albumin and phosphorus, low levels of serum bicarbonate, triglycerides and creatinine, use of ACEI/ARB were associated with hyperkalemia.
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Affiliation(s)
- N Y Huang
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - Y Y Liu
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - J W Yu
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - Y W Xu
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - X H Zheng
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - D H Zhang
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - Z Ai
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - H S Wu
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - X W Diao
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - X Q Ye
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - C Y Yi
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - H P Mao
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - X Yang
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - X Q Yu
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
| | - W Chen
- Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University/Key Laboratory of Nephrology, National Health Commission/Guangdong Provincial Key Laboratory of Nephrology, Guangzhou 510080, China
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Chen J, Song Y, Zhou M, Yang M, Zhang L, Naeem A, Li Z, Deng Y, Liu Y, Ai Z, Su D. Screening for potential quality markers of Callerya nitida var. hirsutissima. Z.Wei based on components profile, pharmacokinetics, and anti-inflammatory study. J Sep Sci 2021; 45:638-649. [PMID: 34729921 DOI: 10.1002/jssc.202100543] [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: 07/13/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/07/2022]
Abstract
Callerya nitida var. hirsutissima. Z.Wei is a classical, traditional Chinese herbal medicine mostly used to treat rheumatoid arthritis. Recent reports suggest that inconsistent and poor-quality control levels have primarily affected the therapeutic efficacy. Therefore, the aim of the current study was to investigate the active chemical ingredients, stability of components in blood, pharmacokinetics, and pharmacodynamics to specify the potential markers for quality control and quality evaluation of Callerya nitida. The active components in vitro and in vivo were obtained by ultra-high-performance liquid chromatography-mass spectrometry. Moreover, the changes of the bioactive components in the blood were monitored over time (0-24 h) in order to identify stable active components. On this basis, the pharmacokinetic characteristics of these ingredients combined with the anti-inflammatory activity were determined to screen out the potential markers for ensuring the quality control of Callerya nitida. The identified four components, such as calycosin, daidzein, formononetin, and 5-hydroxymethylfurfural, have the characteristics of intrinsic components, clearly defined structures, high exposure values, and in vivo stability, which are important for the therapeutic activity of pharmacologically active materials. Therefore, they can be used as potential markers to control the quality levels of Callerya nitida.
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Affiliation(s)
- Jingbin Chen
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Yonggui Song
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Mingyue Zhou
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Ming Yang
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China.,Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, State Key Lab of Innovation Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Ling Zhang
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Abid Naeem
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Zexie Li
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Yaqiong Deng
- Nanchang Medical College, Nanchang University, Nanchang, P. R. China
| | - Yali Liu
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China.,Nanchang Medical College, Nanchang University, Nanchang, P. R. China
| | - Zhifu Ai
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
| | - Dan Su
- Key Laboratory of Depression Animal Model based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Key Laboratory of TCM for Prevention and Treatment of Brain Diseases with Cognitive Impairment Jiangxi Province, Jiangxi University of Chinese Medicine, Nanchang, P. R. China
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Su D, Wang T, Jin C, Liu Y, Naeem A, Liao Z, Zhou M, Chen C, Song Y, Ai Z. Pulchinenosides: Correlation of surface activity-cytotoxicity and hepatocyte apoptosis mechanism study. Bioorg Med Chem Lett 2021; 43:128080. [PMID: 33964439 DOI: 10.1016/j.bmcl.2021.128080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 10/21/2022]
Abstract
Saponin is an active component of many phytomedicine, which has extensive pharmacology effects. Meanwhile, it is reported that cytotoxicity, especially hemolysis and hepatotoxicity, in pentacyclic triterpenoid saponin (PTS) hindered their further development and application. Surface activity, a unique physical property of saponins, is believed to be related to membrane toxicity. However, the correlation between the surface activity and cytotoxicity of saponins is still unexplained. In this paper, our aim was to explore the relationship between surface activity-cytotoxicity of pulchinenosides and the hepatotoxicity mechanism of PTS in vitro. The surface activity of different saponins was investigated by contact angle, surface free energy (SFE), and oil/water partition coefficient (log Papp). In the cytotoxicity study, the hemolysis and hepatotoxicity activity of different saponins was compared by HD50 of erythrocyte and MTT, flow cytometry and LDH assay in LO2 cells respectively. And in the hepatotoxicity mechanism study, western blot was used for observing the expression of proteins related to apoptosis and exploring the liver injury mechanism of PTS. The results suggested that the influences of surface activity on hepatocytes and erythrocytes were different, indicating that the correlation of surface activity-cytotoxicity could provide more information for development of PTS. And the result of hepatotoxicity mechanism study of saponins suggested that endogenous and exogenous apoptotic pathways could be the potential targets of PTS, which could not only provide basis for clinical monitoring and treatment of the toxicity in saponins, but also provide more reference for the clinical application of PTS and phytomedicine containing PTS.
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Affiliation(s)
- Dan Su
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Tingting Wang
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Chen Jin
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Yali Liu
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Abid Naeem
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Zhou Liao
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Mingyue Zhou
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Changlian Chen
- Affiliated Hospital of Jiangxi University of Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China
| | - Yonggui Song
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China.
| | - Zhifu Ai
- Key Laboratory of Animal Model of TCM Syndromes of Depression, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China; Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, China.
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Song Y, Shan B, Zeng S, Zhang J, Jin C, Liao Z, Wang T, Zeng Q, He H, Wei F, Ai Z, Su D. Raw and wine processed Schisandra chinensis attenuate anxiety like behavior via modulating gut microbiota and lipid metabolism pathway. J Ethnopharmacol 2021; 266:113426. [PMID: 33007392 DOI: 10.1016/j.jep.2020.113426] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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: 04/25/2020] [Revised: 09/18/2020] [Accepted: 09/25/2020] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In traditional Chinese medicine, the fruit of Schisandra chinensis (Turcz.) Baill (SC) is used to treat various nervous system diseases, such as dysphoria, anxiety, insomnia and many dreams. It is worthy to be noted that wine processed Schisandra chinensis (WSC) has been applied in clinic for thousands of years. AIM OF STUDY This study aimed to investigate the possible mechanism and related metabolism of SC and WSC ameliorating anxiety behavior through modulating gut microbiota. MATERIALS AND METHODS The ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS) was used for the quality control of chemical components in SC and WSC. Chronic unpredictable stress procedure (CUSP)-induced anxiety rats were administrated with SC and WSC via gavage for five weeks. An untargeted UPLC/LTQ-Orbitrap MS metabolomic analysis of plasma was conducted to understand the effects of long-term intake of WSC and SC extracts on anxious rats. 16S rRNA microbial sequencing technology was applied to investigate gut microbiota structure. Expression of GPR81, TNF-α, S1PR2 as well as molecules in cAMP pathway was assayed by immunohistochemistry staining, RT-qPCR, or Western blot, respectively. RESULTS 12 compounds were identified using UPLC-QTOF-MS technology, all of which are lignans. Results demonstrate that the amounts of 6-O-Benzoylgomisin O, Schisandrin, Gomisin D, Schizandrin A, Gomisin T, Schizandrin B, Schisandrin C were higher in wine-processed samples than in raw samples. Furthermore, both SC and WSC significantly ameliorated anxiety- and depression-like behavior and lipid metabolism dysfunction and attenuated hippocampal neuritis in anxiety rats. After WSC treatment, the structure and composition of gut microbiota in anxiety rats changed significantly, and gut microbiota derivatives lactate level was significantly lower in the plasma and feces. WSC treatment help restore gut microbial ecosystem dysbiosis and reverse the changes in Lachnospiraceae, Lactobacillus, Alloprevotella, and Bacteroidales in anxiety rat. In addition, the expression of liver GPR81 was decreased, and the molecules in cAMP pathway were increased in SC and WSC-treated anxiety rat. CONCLUSION Raw and wine processed Schisandra chinensis treatment improved anxiety- and depression-like behavior through modulating gut microbiota derivatives in association with GPR81 receptor-mediated lipid metabolism pathway. And WSC has more exhibition than SC.
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Affiliation(s)
- Yonggui Song
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Baixi Shan
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China; State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Sufen Zeng
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Jie Zhang
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Chen Jin
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Zhou Liao
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Tingting Wang
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Qiang Zeng
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Hongwei He
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China
| | - Fengqin Wei
- Department of Respiratory and Critical Care Medicine, Qingdao Municipal Hospital Group, 1 Jiaozhou Road, Qingdao, 266011, PR China
| | - Zhifu Ai
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China.
| | - Dan Su
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, PR China.
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15
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Shan B, Ai Z, Zeng S, Song Y, Song J, Zeng Q, Liao Z, Wang T, Huang C, Su D. Gut microbiome-derived lactate promotes to anxiety-like behaviors through GPR81 receptor-mediated lipid metabolism pathway. Psychoneuroendocrinology 2020; 117:104699. [PMID: 32402927 DOI: 10.1016/j.psyneuen.2020.104699] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 01/06/2023]
Abstract
Accumulating evidence suggests that chronic stress could perturb the composition of the gut microbiota and induce host anxiety- and depression-like behaviors. In particular, microorganism-derived products that can directly or indirectly signal to the nervous system. This study sought to investigate whether high levels of Lactobacillus and lactate in the gut of rats under chronic unpredictable stress (CUS) were the factors leading to anxiety behavior. We collected faeces and blood samples in a sterile laboratory bench to study the microbiome and plasma metabolome from adult male rats age and environment matched healthy individuals. We sequenced the V3 and V4 regions of the 16S rRNA gene from faeces samples. UPLC-MS metabolomics were used to examine plasma samples. Search for potential biomarkers by combining the different data types. Finally, we found a regulated signaling pathway through the relative expression of protein and mRNA. Both lactate feeding and fecal microbiota transplantation caused behavioral abnormalities such as psychomotor malaise, impaired learning and memory in the recipient animals. These rats also showed inhibition of the adenylate cyclase (AC)-protein kinase A (PKA) pathway of lipolysis after activation of G protein-coupled receptor 81 (GPR81) by lactate in the liver, as well as increased tumor necrosis factor α (TNF-α), compared with healthy controls. Furthermore, we showed that sphingosine-1-phosphate receptor 2 (S1PR2) protein expression in hippocampus was reduced in chronic unpredictable stress compared to control group and its expression negatively correlates with symptom severity. Our study suggest that the gut microbiome-derived lactate promotes to anxiety-like behaviors through GPR81 receptor-mediated lipid metabolism pathway.
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Affiliation(s)
- Baixi Shan
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Zhifu Ai
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Sufen Zeng
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Yonggui Song
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China.
| | - Jiagui Song
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
| | - Qiang Zeng
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Zhou Liao
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Tingting Wang
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Chao Huang
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China
| | - Dan Su
- Laboratory Animal Science and Technology Center, College of Pharmacy, College of Science and Technology, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Nanchang, 330004, China.
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16
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Wang S, Ai Z, Song M, Yan P, Li J, Wang S. The association between vitamin D receptor FokI gene polymorphism and osteoporosis in postmenopausal women: a meta-analysis. Climacteric 2020; 24:74-79. [PMID: 32551997 DOI: 10.1080/13697137.2020.1775806] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 12/21/2022]
Abstract
OBJECTIVE This study aimed to quantitatively summarize the evidence for vitamin D receptor (VDR) FokI gene polymorphism and osteoporosis risk in Caucasian and Asian postmenopausal women. MATERIALS AND METHODS The PubMed, EMBASE, Weipu, CNKI, and Wanfang databases were searched for eligible studies. Case-control studies containing available genotype frequencies for F/f were chosen, and the odds ratio (OR) with 95% confidence interval (CI) was used to assess the strength of this association. RESULTS In total, 3349 osteoporosis cases and 3202 controls were identified in our meta-analysis. In the stratified analysis, a significant association was observed between VDR FokI gene polymorphism and postmenopausal osteoporosis susceptibility in Asian subjects (additive model: OR = 1.529, 95% CI 1.053-2.219, p = 0.026; dominant model: OR 2.711, 95% CI 1.693-4.342 p < 0.001; co-dominant model: ff vs. FF, OR 2.796, 95% CI 1.439-5.433 p = 0.002), and we failed to find any significant relationship in Caucasian populations. CONCLUSION The present meta-analysis suggests that the VDR FokI genotype is associated with increased risk of osteoporosis in Asian women but not in Caucasian women. To draw comprehensive and true conclusions, further prospective studies with larger numbers of participants worldwide are needed to examine associations between VDR FokI polymorphism and osteoporosis.
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Affiliation(s)
- S Wang
- Laboratory of Molecular Biology, Hangzhou Seventh People's Hospital, Hangzhou, China
| | - Z Ai
- Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, China
| | - M Song
- Laboratory of Molecular Biology, Hangzhou Seventh People's Hospital, Hangzhou, China
| | - P Yan
- Laboratory of Molecular Biology, Hangzhou Seventh People's Hospital, Hangzhou, China
| | - J Li
- Laboratory of Molecular Biology, Hangzhou Seventh People's Hospital, Hangzhou, China
| | - S Wang
- Laboratory of Molecular Biology, Hangzhou Seventh People's Hospital, Hangzhou, China
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17
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Chen X, Liu Z, Ai Z. Antineoplastic mechanism of Octreotide action in human hepatoma. Chin Med J (Engl) 2001; 114:1167-70. [PMID: 11729512] [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: 02/22/2023] Open
Abstract
OBJECTIVES To investigate whether apoptosis can be induced by Octreotide in human hepatoma cells in vitro and elucidate the antineoplastic mechanism of Octreotide in hepatoma. METHODS A cultured human hepatoma cell line, BEL-7402, was exposed to Octreotide and apoptosis was evaluated by cytochemical staining (Hochesst 33,258), transmission electron microscopy, agarose gel electrophoresis and flow cytometry (FCM). RESULTS After exposure to 0.2 microgram/ml Octreotide, apoptosis with nuclear chromatin condensation as well as fragmentation, cell shrinkage and the formation of apoptotic bodies was observed using cytochemical staining and transmission electron microscopy. A DNA ladder in agarose gel electrophoresis was also displayed. FCM showed that the apoptotic cell number rose with an increase in the concentration of Octreotide (0-2 micrograms/ml). There was a positive correlation between Octreotide concentration and apoptotic rate in BEL-7402 cells (r = 0.809, P < 0.05). CONCLUSION Apoptosis in human hepatoma cells can be induced by Octreotide, which may be related to the mechanism of antineoplastic action of Octreotide in hepatoma.
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Affiliation(s)
- X Chen
- Department of General Surgery, Zhongnan Hospital, Wuhan University, Wuhan 430071, China.
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Chhadia A, Dech F, Ai Z, Silverstein JC. Autocolorization of three-dimensional radiological data. Stud Health Technol Inform 2001; 81:90-6. [PMID: 11317826] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
It requires skill, effort, and time to visualize desired anatomic structures from radiological data in three-dimensions. There have been many attempts at automating this process and making it less labor intensive. The technique we have developed is based on mutual information for automatic multi-modality image fusion (MIAMI Fuse, University of Michigan). The initial development of our technique has focused on the autocolorization of the liver, portal vein, and hepatic vein. A standard dataset in which these structures had been segmented and assigned colors was created from the full color Visible Human Female (VHF) and then optimally fused to the fresh CT Visible Human Female. This semi-automatic segmentation and coloring of the CT dataset was subjectively evaluated to be reasonably accurate. The transformation could be viewed interactively on the ImmersaDesk, in an immersive Virtual Reality (VR) environment. This 3D segmentation and visualization method marks the first step to a broader, standardized automatic structure visualization method for radiological data. Such a method, would permit segmentation of radiological data by canonical structure information and not just from the data's intrinsic dynamic range.
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Affiliation(s)
- A Chhadia
- University of Illinois at Chicago, VRMedLab, HHSB M/C 530, Chicago, IL 60612-7249, USA.
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Dech F, Ai Z, Silverstein JC. Manipulation of volumetric patient data in a distributed virtual reality environment. Stud Health Technol Inform 2001; 81:119-25. [PMID: 11317724] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Due to increases in network speed and bandwidth, distributed exploration of medical data in immersive Virtual Reality (VR) environments is becoming increasingly feasible. The volumetric display of radiological data in such environments presents a unique set of challenges. The shear size and complexity of the datasets involved not only make them difficult to transmit to remote sites, but these datasets also require extensive user interaction in order to make them understandable to the investigator and manageable to the rendering hardware. A sophisticated VR user interface is required in order for the clinician to focus on the aspects of the data that will provide educational and/or diagnostic insight. We will describe a software system of data acquisition, data display, Tele-Immersion, and data manipulation that supports interactive, collaborative investigation of large radiological datasets. The hardware required in this strategy is still at the high-end of the graphics workstation market. Future software ports to Linux and NT, along with the rapid development of PC graphics cards, open the possibility for later work with Linux or NT PCs and PC clusters.
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Affiliation(s)
- F Dech
- University of Illinois at Chicago, VRMedLab, HHSB M/C 530, Chicago, IL 60612-7249, USA.
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Ai Z, Dech F, Rasmussen M, Silverstein JC. Radiological tele-immersion for next generation networks. Stud Health Technol Inform 2000; 70:4-9. [PMID: 10977581] [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: 02/17/2023]
Abstract
Since the acquisition of high-resolution three-dimensional patient images has become widespread, medical volumetric datasets (CT or MR) larger than 100 MB and encompassing more than 250 slices are common. It is important to make this patient-specific data quickly available and usable to many specialists at different geographical sites. Web-based systems have been developed to provide volume or surface rendering of medical data over networks with low fidelity, but these cannot adequately handle stereoscopic visualization or huge datasets. State-of-the-art virtual reality techniques and high speed networks have made it possible to create an environment for clinicians geographically distributed to immersively share these massive datasets in real-time. An object-oriented method for instantaneously importing medical volumetric data into Tele-Immersive environments has been developed at the Virtual Reality in Medicine Laboratory (VRMedLab) at the University of Illinois at Chicago (UIC). This networked-VR setup is based on LIMBO, an application framework or template that provides the basic capabilities of Tele-Immersion. We have developed a modular general purpose Tele-Immersion program that automatically combines 3D medical data with the methods for handling the data. For this purpose a DICOM loader for IRIS Performer has been developed. The loader was designed for SGI machines as a shared object, which is executed at LIMBO's runtime. The loader loads not only the selected DICOM dataset, but also methods for rendering, handling, and interacting with the data, bringing networked, real-time, stereoscopic interaction with radiological data to reality. Collaborative, interactive methods currently implemented in the loader include cutting planes and windowing. The Tele-Immersive environment has been tested on the UIC campus over an ATM network. We tested the environment with 3 nodes; one ImmersaDesk at the VRMedLab, one CAVE at the Electronic Visualization Laboratory (EVL) on east campus, and a CT scan machine in UIC Hospital. CT data was pulled directly from the scan machine to the Tele-Immersion server in our Laboratory, and then the data was synchronously distributed by our Onyx2 Rack server to all the VR setups. Instead of permitting medical volume visualization at one VR device, by combining teleconferencing, tele-presence, and virtual reality, the Tele-Immersive environment will enable geographically distributed clinicians to intuitively interact with the same medical volumetric models, point, gesture, converse, and see each other. This environment will bring together clinicians at different geographic locations to participate in Tele-Immersive consultation and collaboration.
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Affiliation(s)
- Z Ai
- University of Illinois at Chicago, VRMedLab 60612, USA. ,
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Abstract
Gap junction channels composed of connexin43 (Cx43) are essential for normal heart formation and function. We studied the potential role of the Wnt family of secreted polypeptides as regulators of Cx43 expression and gap junction channel function in dissociated myocytes and intact hearts. Neonatal rat cardiomyocytes responded to Li(+), which mimics Wnt signaling, by accumulating the effector protein beta-catenin and by inducing Cx43 mRNA and protein markedly. Induction of Cx43 expression was also observed in cardiomyocytes cocultured with Rat-2 fibroblasts or N2A neuroblastoma cells programmed to secrete bioactive Wnt-1. By transfecting a Cx43 promoter-reporter gene construct into cardiomyocytes, we demonstrated that the inductive effect of Wnt signaling was transcriptionally mediated. Enhanced expression of Cx43 increased cardiomyocyte cell coupling, as determined by Lucifer Yellow dye transfer and by calcium wave propagation. Conversely, in a transgenic cardiomyopathic mouse model that exhibits ventricular arrhythmias and gap junctional remodeling, beta-catenin and Cx43 expression were downregulated concordantly. In response to Wnt signaling, the accumulating Cx43 colocalized with beta-catenin in the junctional membrane; moreover, forced expression of Cx43 in cardiomyocytes reduced the transactivation potential of beta-catenin. These findings demonstrate that Wnt signaling is an important modulator of Cx43-dependent intercellular coupling in the heart, and they support the hypothesis that dysregulated signaling contributes to altered impulse propagation and arrhythmia in the myopathic heart.
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Affiliation(s)
- Z Ai
- Section of Myocardial Biology, Zena and Michael A. Wiener Cardiovascular Institute, Department of Medicine, Mount Sinai School of Medicine, New York, New York 10029, USA
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Jindal HK, Ai Z, Gascard P, Horton C, Cohen CM. Specific loss of protein kinase activities in senescent erythrocytes. Blood 1996; 88:1479-87. [PMID: 8695869] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Rabbit erythrocytes of progressively increasing age were isolated using an avidin-biotin affinity technique and the activity of protein kinases and other enzymes was analyzed in cytosols and membranes from the isolated cells. The activities of cytosolic protein kinase C (PKC), cAMP-dependent kinase (PKA), and casein kinase type I and II (CKI and II) were all found to undergo an age-dependent decrease of twofold to fourfold over the 8-week lifespan of the cells. Membrane-associated tyrosine kinase showed little or no decrease, but membrane-associated CKI showed a dramatic eightfold decrease over the 8-week period. By contrast, various cytosolic enzymes, including lactate dehydrogenase, phosphoglycerate kinase, pyruvate kinase, and acid phosphatase, showed no change in activity over the same time period. Density-separated human erythrocytes showed qualitatively similar decreases in cytosolic protein kinase activities in the densest fractions, which contain the oldest cells. Our results show that aging erythrocytes undergo progressive loss of protein kinases that may adversely affect various cellular processes. The age-dependent loss of kinase activity reported here is one of the most striking manifestations of erythrocyte senescence yet to be reported.
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Affiliation(s)
- H K Jindal
- Department of Biomedical Research, St Elizabeth's Medical Center, Tufts University, School of Medicine, Boston, MA 02135, USA
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Ai Z, Misra S, Susa M, Varticovski L, Cohen CM. Phosphatidylinositol 3-kinase activity in murine erythroleukemia cells during DMSO-induced differentiation. Exp Cell Res 1995; 219:454-60. [PMID: 7641797 DOI: 10.1006/excr.1995.1252] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We have used murine erythroleukemia cells (MEL cells) to investigate the role of phosphatidylinositol 3-kinase (PI 3-kinase) in erythroid differentiation. When treated with dimethyl sulfoxide (DMSO), MEL cells grown on a fibronectin matrix become committed to erythroid differentiation asynchronously, with 90% of cells becoming committed by Day 3 of treatment. We found that during the first 3 days of DMSO treatment MEL cells showed a twofold increase in total PI 3-kinase activity and a fourfold increase in the highly phosphorylated PI 3-kinase product, PIP3. At the same time there was no change in the content of p85, the PI 3-kinase regulatory subunit. After Day 3, PI 3-kinase activity declined, in parallel with a disappearance of p85 antigen from the cells. Inclusion of the PI 3-kinase inhibitor Wortmannin in the culture medium resulted in an inhibition of cellular PI 3-kinase activity and a delay in DMSO-induced erythroid differentiation. These data suggest that PI 3-kinase may play a critical role during commitment of MEL cells to erythroid differentiation.
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Affiliation(s)
- Z Ai
- Department of Biomedical Research, St. Elizabeth's Medical Center, Boston, Massachusetts 02135, USA
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Gong S, Ai Z, Zhou Y. [Protective effects of prostacyclin on acute necrotizing pancreatitis and its renal damage in rats]. Zhonghua Wai Ke Za Zhi 1995; 33:197-200. [PMID: 7587668] [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: 01/26/2023]
Abstract
In a rat model with acute necrotizing pancreatitis (ANP), the administration of exogenous prostacyclin (PGI2) significantly increased the pancreatic and renal blood flow, brought the level of 6-keto-PGF1 alpha to TXB2 in renal vein blood back to normal, reduced the severity of pancreatic and renal histolcagic damage, decreased the mortality, and prolonged survival time. The study showed that exogenous PGI2 can increase pancreatic blood flow in rats with ANP, help to prevent ANP, and protect from renal damage following ANP.
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Affiliation(s)
- S Gong
- Zhaoquing First People's Hospital
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Abstract
An algorithm for accurate rendering of space-filling molecular models with shadows is presented. The intensity of light and cast shadows are computed to generate realistic pictures. Arbitrary numbers of light sources, which may be at infinite or finite distances can be applied. Hidden-surface removal, lighting, and shadowing are presented in detail.
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Affiliation(s)
- Z Ai
- Lab of Molecular and Biomolecular Electronics, Southeast University, Nanjing, P. R. China
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