1.Research strategies and applications of functional metabolomics in anti-depressive mechanisms of traditional Chinese medicine
Meng-yu ZHANG ; Lin XIAO ; Yao-yao REN ; Rui TAN ; He-zhong JIANG ; Xiao-qing WU
Acta Pharmaceutica Sinica 2023;58(7):1732-1741
Depression is a common emotional disorder that seriously affects people's life and health all over the world. The pathogenesis of depression is complex, and traditional Chinese medicine (TCM) for antidepressants has a good therapeutic effect because of its multi-component, multi-pathway, and multi-target action mode. At present, the anti-depressive mechanism of TCM has not been fully clarified, but it is clear that depression is closely related to metabolic health. Therefore, in order to further explore the anti-depressive mechanism of TCM, this paper proposes research strategies on the anti-depressive mechanism of TCM based on functional metabolomics from the perspective of metabolism, the potential biomarkers of depression are analyzed with the help of multi-omics combined analysis technology, and the functional molecules of TCM for antidepressant are studied. Molecular biology techniques are used to accurately capture the molecular interactions between biomarkers of depression and functional compounds, which identify effective drug targets and further elucidate the biochemical functions and related mechanisms involved in depression metabolic disorders. This paper systematically reviews the research strategies and applications of functional metabolomics in the anti-depressive mechanisms of TCM, expounds on the core value of functional metabolomics, and summarizes the current research status and hot issues of TCM for antidepressants in recent years, providing new methods and new ideas for the study of mechanisms of TCM with the help of functional metabolomics.
2.Research progress in the study of brain microdialysis in glioma.
Lin LIU ; Xiang-Yi ZHANG ; Yao XIAO ; Xing-Guo ZHANG
Acta Pharmaceutica Sinica 2014;49(4):450-456
Glioma is the most common form of brain cancer. Despite recent advances in the treatment of solid tumors, there are few effective treatments for malignant gliomas due to its infiltrative nature. It has important significance to improve the treatment of glioma through in-depth understanding the intracerebral metabolic characteristics and pharmacokinetics of chemotherapeutics. Brain microdialysis (B-MD), an effective method to monitor central nervous system anticancer drug disposition, conditions of drugs through the blood-brain barrier, basic pathophysiologic metabolism, bioactive compounds and the changes of neurotransmitter in brain, provides the unique opportunity to allow the simultaneous determination of unbound concentrations of drugs in several tissues, and directly measure gliomas biochemistry continuously. B-MD has been able to monitor the change of brain drugs, metabolites and neurotransmitters, dynamic analysis of the drug concentration and pharmacological effect after administration, pharmacodynamic interaction between drugs, receptor mechanism of drug transport, as well as feedback information of internal environment. B-MD is expected to provide reference for clinical individual chemotherapy of glioma, but also provide powerful tools for the evaluation of new anticancer drugs in vivo. In this review, a comprehensive overview of B-MD for studies on glioma is elucidated with special emphasis on its application to neurochemistry and pharmacokinetic studies.
Animals
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Antineoplastic Agents
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pharmacokinetics
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Blood-Brain Barrier
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Brain Neoplasms
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metabolism
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Glioma
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metabolism
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Humans
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Magnetic Resonance Spectroscopy
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Metabolomics
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methods
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Microdialysis
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methods
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Neurotransmitter Agents
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pharmacokinetics
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Pharmaceutical Preparations
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metabolism
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Positron-Emission Tomography
4.Endovenous radiofrequency ablation in combination with TriVex for treatment of chronic venous insufficiency of the lower extremity
Zhihui ZHANG ; Shaomang LIN ; Yandan YAO ; Jianbin XIAO ; Baigen ZHANG
Chinese Journal of General Surgery 2008;23(3):179-182
objective To evaluate the therapeutic efficacy of endovenous radiofrequency ablation in combination with TriVex for the treatment of chronic venous insufficiency (CVI)of the lower extremity.Methods One hundred and fifty CVI cases(150 limbs)were randomly assigned to Group A(75 limbs)and Group B(75 limbs).Patients in Group A were treated with greater saphenous vein radiofrequency ablation procedures in combination with TriVex.Patients in Grpup B were treated with greater saphenous vein traditional stripping operation in combination with TriVex.The short-term results in hospital and patient self-assessment for the operation at postoperative 4 week were compared with each other:The changes of CEAP classification and venous clinical severity score(VCSS)were compared. Results Operation time was(67±11)min in Group A versus(69-4-9)min in Group B(P>0.05).Postoperative pain,average hospital stay in Group A were significantly less and shorter than in Group B(P <0.05).The scores of selfassessment for the operation were(11.21±2.00)in Group A versus(10.52±2.08)in Group B(P<0.05).The change of CEAP classification and VCSS were statistically significant after operation in both groups(P<0.01).The VCSS decreased 4.6 ±2.5 in Group A versus 4.3±2.7 in Grpup B(P>0.05).Conclusions Endovenous radiofrequency ablation in combination with TriVex for treatment of CVI are effective,less traumatic,of fast recovery.CEAP classification and VCSS are useful tools for assessing outcomes after the operation.
5.Effects of celecoxib and Indomethacin on the VEGF and Microvessel Density in remnant kidney of rats with 5/6 subtotal nephrectomy
Xiao YAO ; Yunsheng JIANG ; Xia LIN ; Gengxun LIU
Journal of Chinese Physician 2009;11(1):1-4
Objective Our aim is to investigate the effects of lndomethacin on the expression of VEGF and the change of Micmves-sel Density(MVD)in remnant kidney of rats with 5/6 subtotal nephrectomy(STNx).Methods The renal subtotal ablation model was established by surgically 5/6 renal resection of the male Spragne-Dawley(SD)rats.Three groups were divided in our experimental protocol,including Sham,STNx and STNxI group.At the 8th week after gastric gavage,pathological changes of the remnant kidney were evaluated.Immunohistachemistry were used to examine the expression ofVEGF and MVD in the remnant kidney.Results At the 8th week after gastric gavage,only Up was significant decreased(P<0.05).TIS in Indomethacin group WaS significandy increased(P<0.05)and the preitu bular capillary density wa$significant decreased(P<0.05),compared with STNx group.Although BUN,Cr,the remnant kidney glomerulus's GSI were also decreased,the difference was not statistically significant(P>0.05).The glomendus~capillary density had no signifi-cant difference(P>0.05).In all rats,the expression of VEGF was positive correlated with capillary density between glomemlus and tubu-lointerstitimn(P<0.05).Conclusions Iadomethacin Can decrease UP in remnant kidney of rats with 5/6 subtotal nephrectemy(ST-Nx),and decrease the preitubular capillary density and aggravate mbulointerstitial injury at the same time.
6.Protocol of safety guidelines for workplace violence on health care sector using Delphi method
Jing LIN ; Ling DENG ; Xiaodong XIAO ; Lei YAO ; Wenzhi CAI
Chinese Journal of Practical Nursing 2010;26(7):5-8
Objective To recommend the safety guidelines for workplace violence on health care sector according to the incidents of violence status on medical workplace.Methods A pilot study was conducted using a two-round Delphi method to study out the safety guidelines for hospital violence.Results In two subsequent rounds,the group discussed and screened out 50 entries from 51 items in the six modules as safety guidelines for hospital violence.Conclusions Establishment of safety guidelines for hospital violence on health care sector using Delphi method requires further clinical validation.
7.Calcitonin Gene-related peptides and Vasoactive Intestinal Peptide in Plasma and Lesion of Patients with Alopecia Areata
Fengli XIAO ; Shunqiang GAO ; Guishen YAO ; Yanqing GAO ; Yuanzhu LIN
Chinese Journal of Dermatology 1994;0(02):-
Objective To study the role of calcitonin gene-related peptide(CGRP)and vasoactive intestinal peptide(VIP)in the pathogenesis of alopecia areata(AA).Methods Radioimmunoassay(RIA)was used to measure the levels of CGRP and VIP in plasma from30patients with AA and20normal controls.Immunohistochemistry was employed to detect the expression of CGRP and VIP in lesions of21patients with AA and16normal scalps.Results①The plasma levels of CGRP in progressing stage of AA(142.63?67.95pg/mL)were significantly lower than those in stable stage of AA(197.33?67.15pg/mL)and in normal controls(188.40?72.95pg/mL).②The plasma levels of VIP in progressing stage of AA(105.94?55.42pg/mL)were significantly lower than those in stable stage of AA(156.86?47.37pg/mL)and in normal controls(176.44?84.70pg/mL).③The expression of CGRP and VIP was significanly decreased in lesions of AA than that in normal scalps.Conclusion These findings indicate that CGRP and VIP may play a role in the pathogenesis of alopecia areata.
8.Expression and anti-hepatoma effect of TCR V?7 after being transfected into PBLs
Lanfeng XIAO ; Jiahong YAO ; Yuexia LIN ; Al ET
Chinese Journal of Immunology 2000;0(09):-
Objective:To study the biological effects of TCR on hepatoma cells by transfecting V?7 into lymphocytes.Methods:TCR V?7 gene was amplified by RT PCR and cloned to expression vector pLXSN. The recombinant was transferred into lymphocytes by Lipofectin Reagent transfection, then the lymphocytes were co cultured with hepatoma cells. The phenotype of lymphocytes was detected on the Flow Cytometry, the expression of TCR V?7.1 gene was detected by Laser Scanning Confocal Microscope ( LSCM) and the ultrastructure of the hepatoma cells was showed by electronic microscope.Results:The amount of the transmembrane protein expressed by TCR V?7.1 gene was increased significantly, and so was the amount of lymphocytes (P
9.Clinical exploration based on cost analysis: costs among different screening methods for myopia in school-aged children
Si CHEN ; Enzong JIN ; Xiaofang REN ; Jinglei YAO ; Lin XIAO
Chinese Journal of Medical Science Research Management 2013;26(6):427-429
To explore an easily executive and conveniently generalized method with effectiveness and low costing for myopia screening at the early stage.Research was performed to testify the reasonability of using axial length/corneal radius (AL/CR) for myopia screening in children by comparing the cost between AL/CR plus vision acuity (VA) and simple VA examination.Chinese school-aged children in Yangfang school district,Beijing (n=1427,aged 6~12 years old) were randomly grouped for either pure VA examination or for VA plus AL/CR examination.Those suspicious myopic children were informed for further refractive examination.Finally,the cost from screening to definite diagnosis of refractive error was calculated.Generally,compared with VA examination,the total cost was reduced by 15.12% and by 12.34%,respectively,in the elder group using VA plus AL/CR examination.VA plus AL/CR examination is an economical and reasonable method for screening suspicious myopia in Chinese school-aged children compared with pure VA examination.
10.Research progress in the study of brain microdialysis in glioma.
Lin LIU ; Xiangyi ZHANG ; Yao XIAO ; Xingguo ZHANG
Acta Pharmaceutica Sinica 2014;49(4):450-6
Glioma is the most common form of brain cancer. Despite recent advances in the treatment of solid tumors, there are few effective treatments for malignant gliomas due to its infiltrative nature. It has important significance to improve the treatment of glioma through in-depth understanding the intracerebral metabolic characteristics and pharmacokinetics of chemotherapeutics. Brain microdialysis (B-MD), an effective method to monitor central nervous system anticancer drug disposition, conditions of drugs through the blood-brain barrier, basic pathophysiologic metabolism, bioactive compounds and the changes of neurotransmitter in brain, provides the unique opportunity to allow the simultaneous determination of unbound concentrations of drugs in several tissues, and directly measure gliomas biochemistry continuously. B-MD has been able to monitor the change of brain drugs, metabolites and neurotransmitters, dynamic analysis of the drug concentration and pharmacological effect after administration, pharmacodynamic interaction between drugs, receptor mechanism of drug transport, as well as feedback information of internal environment. B-MD is expected to provide reference for clinical individual chemotherapy of glioma, but also provide powerful tools for the evaluation of new anticancer drugs in vivo. In this review, a comprehensive overview of B-MD for studies on glioma is elucidated with special emphasis on its application to neurochemistry and pharmacokinetic studies.