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https://www.readbyqxmd.com/read/28623809/dual-target-screening-of-bioactive-components-from-traditional-chinese-medicines-by-hollow-fiber-based-ligand-fishing-combined-with-liquid-chromatography-mass-spectrometry
#1
Liang Chen, Xin Wang, Youping Liu, Xin Di
A novel strategy was developed for dual-target screening of bioactive components from traditional Chinese medicines (TCMs). This strategy was based on the use of low-cost microporous hollow fibers filled with target enzymes as baits to "fish out" the ligands in TCM extracts, followed by identification of the ligands dissociated from the target-ligand complexes by liquid chromatography-mass spectrometry. Ganjiang Huangqin Huanglian Renshen Decoction (GHHRD), a classical TCM prescription for diabetes treatment, was chosen as a model sample to evaluate the feasibility of the proposed strategy...
June 2, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28622281/effects-of-baicalin-on-blood-pressure-and-left-ventricular-remodeling-in-rats-with-renovascular-hypertension
#2
Hualei Dai, Xinjin Zhang, Zhigang Yang, Jianmei Li, Jialin Zheng
BACKGROUND This study aimed to explore the effect of baicalin, which is a kind of bioactive flavonoid, on blood pressure and left ventricular remodeling in rats with renovascular hypertension. MATERIAL AND METHODS A total of 40 male Wistar rats were randomly assigned into sham-operation (n=10) and renal hypertension model groups (2-kidney-1 clip; 2K-1C, n=30). The rats in the renal hypertension model group were randomly subdivided into 2K-1C (n=13) and 2K-1C/Baicalin groups (n=14). The cardiac function indexes were determined after 4 weeks...
June 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28590088/trypsin-inhibitor-screening-in-traditional-chinese-medicine-by-using-an-immobilized-enzyme-microreactor-in-capillary-and-molecular-docking-study
#3
Mengxia Cheng, Zilin Chen
A trypsin immobilized enzyme microreactor was successfully prepared in capillary for studying enzyme kinetics of trypsin and online screening trypsin inhibitors from traditional Chinese medicine through capillary electrophoresis. Trypsin was immobilized on the inner wall at the inlet of the capillary treated with polydopamine. The rest of the capillary was used as a separation channel. The parameters including the separation efficiency and the activity of immobilized trypsin were comprehensively evaluated. Under the optimal conditions, online screening of trypsin inhibitors each time can be carried out within 6 min...
June 7, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28590083/novel-strategy-for-quality-consistency-evaluation-of-chinese-medicine-yiqing-tablet-that-combines-the-simultaneous-quantification-and-screening-of-ten-bioactive-constituents
#4
REVIEW
Dandan Gong, Yilang Hong, Guoxiang Sun, Jing Zhang
The UV characteristics for different categories compounds in complex traditional Chinese medicines and herbal preparations usually vary. Thus, to achieve the integral analysis of multi-wavelength fingerprint characteristics, we introduced a novel strategy of multi-wavelength total fusion profiling. The simultaneous separation and quantification of multiple components by reversed-phase high-performance liquid chromatography coupled with diode array detection was developed in an effective, accurate and reliable way...
June 7, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28573603/influence-of-culture-medium-composition-and-light-conditions-on-the-accumulation-of-bioactive-compounds-in-shoot-cultures-of-scutellaria-lateriflora-l-american-skullcap-grown-in-vitro
#5
Beata Kawka, Inga Kwiecień, Halina Ekiert
Methanolic extracts from in vitro grown Scutellaria lateriflora shoots cultured on five Murashige and Skoog (MS) medium variants supplemented with different combinations of 6-benzylaminopurine (BAP) and α-naphthaleneacetic acid (NAA) under different light conditions (monochromatic light, white light and no light) were analysed by HPLC for three groups of metabolites: flavonoids (26 compounds), phenolic acids and their precursors (19+2) and phenylethanoid glycosides (2). The analyses revealed the presence of baicalein, baicalin, wogonin, wogonoside, 3,4-dihydroxyphenylacetic acid and verbascoside...
June 1, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28570935/pharmacokinetics-study-of-erhuang-decoction-extracts-in-rats-by-hplc-ms-ms
#6
Jinglong Wang, Dandan Zheng, Yingzi Wang, Chao Zhang, Xiumei Sun
To study the pharmacokinetics of Erhuang decoction extracts, a high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was established for the determination of effective substances in rat plasma. The extracts prepared by water extraction (WE) method were given to rats by oral administration. After collected from the orbital venous plexus, plasma was treated by protein precipitation method. Then, the concentration of index components, including baicalin, liquiritin, berberine, palmatine and glycyrrhetinic acid, were determined by HPLC-MS/MS...
August 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28567014/metabolic-profiling-analysis-of-the-alleviation-effect-of-treatment-with-baicalin-on-cinnabar-induced-toxicity-in-rats-urine-and-serum
#7
Guangyue Su, Gang Chen, Xiao An, Haifeng Wang, Yue-Hu Pei
Objectives: Baicalin is the main bioactive flavonoid constituent isolated from Scutellaria baicalensis Georgi. The mechanisms of protection of liver remain unclear. In this study, (1)H NMR-based metabonomics approach has been used to investigate the alleviation effect of Baicalin. Method:(1)H NMR metabolomics analyses of urine and serum from rats, was performed to illuminate the alleviation effect of Baicalin on mineral medicine (cinnabar)-induced liver and kidney toxicity. Results: The metabolic profiles of groups receiving Baicalin at a dose of 80 mg/kg were remarkably different from cinnabar, and meanwhile, the level of endogenous metabolites returned to normal compared to group cinnabar...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28554061/comparative-pharmacokinetic-study-of-baicalin-and-its-metabolites-after-oral-administration-of-baicalin-and-chaiqin-qingning-capsule-in-normal-and-febrile-rats
#8
COMPARATIVE STUDY
Xiao-Kui Huo, Bo Wang, Lu Zheng, Hai-Jian Cong, Ting Xiang, Shu-Mei Wang, Cheng-Peng Sun, Chao Wang, Lin Zhang, Sa Deng, Bin Wu, Xiao-Chi Ma
An accurate, precise, selective, and sensitive high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) method was developed for the simultaneous determination of baicalin and its metabolite, baicalein 6-O-glucopyranuronoside, in normal and febrile rats plasma. Two analytes, along with hesperidin as an internal standard, were determined by multiple reactions monitoring (MRM) operated in the positive electrospray ionization (ESI) mode. Chromatographic separation was performed on an Agilent ZORBAX Extend-C18 column (100mm×2...
August 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28545442/anti-cancer-effect-of-scutellaria-baicalensis-in-combination-with-cisplatin-in-human-ovarian-cancer-cell
#9
Bo Yoon Choi, Jong Cheon Joo, Yeon Kyu Lee, Ik-Soon Jang, Soo Jung Park, Yoon Jung Park
BACKGROUND: Ovarian cancer is one of the major causes of death among females in worldwide. Cisplatin is a primary anti-cancer drug against ovarian cancer, but the recurrent tumors after treatment frequently show acquired chemoresistance. Extract of Scutellaria baicalensis (SbE) has been reported to have functional compounds including baicalin, which has anti-cancer effects. However, the anti-cancer effects of SbE in ovarian cancer and its underlying mechanisms are elusive. METHODS: We investigated that the effects of SbE and/or cisplatin on cell death in the cisplatin sensitive ovarian cancer cell line A2780 (CSC) and the counterpart cell line that has cisplatin resistance (CRC)...
May 25, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28506353/-effect-of-baicalin-on-atpase-and-ldh-and-its-regulatory-effect-on-the-ac-camp-pka-signaling-pathway-in-rats-with-attention-deficit-hyperactivity-disorder
#10
Rong-Yi Zhou, Jiao-Jiao Wang, Yue You, Ji-Chao Sun, Yu-Chen Song, Hai-Xia Yuan, Xin-Min Han
OBJECTIVE: To study the effect of baicalin on synaptosomal adenosine triphosphatase (ATPase) and lactate dehydrogenase (LDH) and its regulatory effect on the adenylate cyclase (AC)/cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) signaling pathway in rats with attention deficit hyperactivity disorder (ADHD). METHODS: A total of 40 SHR rats were randomly divided into five groups: ADHD model, methylphenidate hydrochloride treatment (0.07 mg/mL), and low-dose (3...
May 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28501181/a-voltammetry-sensor-platform-for-baicalein-and-baicalin-simultaneous-detection-in-vivo-based-on-ta2o5-nb2o5-cts-composite
#11
Zhengkun Xie, Wang Lu, Lingxi Yang, Gaiping Li, Baoxian Ye
Baicalein and baicalin are the major flavonoids found in Scutellariae Radix, an essential herb which has had a presence in traditional Chinese medicine (TCMs) for more than two thousands of years. Owing to their similar characteristics and physiochemical properties, sensitive, it is a great challenge to detect both of them simultaneously. In this work, a novel, facile and sensitive electrochemical method was proposed based on tantalum oxide (Ta2O5), niobium oxide (Nb2O5) particles and antiseptic chitosan modified carbon paste electrode (Ta2O5-Nb2O5@CTS-CPE)...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28488307/baicalin-alleviates-nitroglycerin-induced-migraine-in-rats-via-the-trigeminovascular-system
#12
Yu-Yao Sun, Wen-Jun Zhang, Cui-Lan Dong, Xiao-Fan Zhang, Jun Ji, Xue Wang, Ling Wang, Wan-Li Hu, Wen-Juan Du, Cheng-Long Cui, Chun-Feng Zhang, Fei Li, Chong-Zhi Wang, Chun-Su Yuan
Migraine is a common neurological disorder with a serious impact on quality of life. The aim of this study was to explore the effect of baicalin on nitroglycerin-induced migraine rats. We carried out a behavioral research within 2 h post-nitroglycerin injection, and blood samples were drawn for measurements of nitric oxide (NO), calcitonin gene-related peptide, and endothelin (ET) levels. Immunohistochemistry was adopted to detect the activation of C-fos immunoreactive neurons in periaqueductal gray. The number, area size, and integrated optical density of C-fos positive cells were measured using Image-Pro Plus...
June 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28487653/chinese-herbal-medicines-attenuate-acute-pancreatitis-pharmacological-activities-and-mechanisms
#13
REVIEW
Hong Xiang, Qingkai Zhang, Bing Qi, Xufeng Tao, Shilin Xia, Huiyi Song, Jialin Qu, Dong Shang
Acute pancreatitis (AP) is a commonly occurring gastrointestinal disorder. An increase in the annual incidence of AP has been observed, and it causes acute hospitalization and high mortality. The diagnosis and treatment guidelines for AP recommend conservative medical treatments focused on reducing pancreatic secretion and secondary injury, as a primary therapeutic approach. Unfortunately, the existing treatment options have limited impact on the incidence and severity of AP due to the complex and multifaceted pathological process of this disease...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28484391/quantitative-evaluation-of-the-compatibility-effects-of-huangqin-decoction-on-the-treatment-of-irinotecan-induced-gastrointestinal-toxicity-using-untargeted-metabolomics
#14
Dong-Ni Cui, Xu Wang, Jia-Qing Chen, Bo Lv, Pei Zhang, Wei Zhang, Zun-Jian Zhang, Feng-Guo Xu
Huangqin decoction (HQD), a traditional Chinese medicine (TCM), has been widely used to treat gastrointestinal syndrome in China for thousands of years. Chemotherapy drug irinotecan (CPT-11) is used clinically to treat various kinds of cancers but limited by its side effects, especially delayed diarrhea. Nowadays, HQD has been proved to be effective in attenuating the intestinal toxicity induced by CPT-11. HQD consists of four medicinal herbs including Scutellaria baicalensis Georgi, Glycyrrhiza uralensis Fisch, Paeonia lactiflora Pall, and Ziziphus jujuba Mill...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28477383/screening-free-radical-scavengers-in-xiexin-tang-by-hplc-abts-dad-q-tof-ms
#15
Yu-Qing Wang, Shu-Jiao Li, Guo Zhuang, Rong-Hui Geng, Xu Jiang
Xiexin Tang (XXT) is a traditional Chinese medicine (TCM) that has been used in herbal clinics for more than 1800 years. Many studies have shown that XXT has therapeutic effects on patients with arteriosclerosis (AS) owing to its antioxidant activity. However, there is little information about the relationship between the chemical composition of XXT and its antioxidant activity. In this study, the HPLC-ABTS-DAD-Q-TOF/MS method, which can simultaneously identify individual components and rapidly screen for antioxidant compounds, was used to screen and identify antioxidant components in XXT...
May 6, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28465229/poly-dimensional-network-comparative-analysis-reveals-the-pure-pharmacological-mechanism-of-baicalin-in-the-targeted-network-of-mouse-cerebral-ischemia
#16
Qiong Liu, Jun Liu, Pengqian Wang, Yingying Zhang, Bing Li, Yanan Yu, Haixia Dang, Haixia Li, Xiaoxu Zhang, Zhong Wang
This study aimed to investigate the pure pharmacological mechanisms of baicalin/baicalein (BA) in the targeted network of mouse cerebral ischemia using a poly-dimensional network comparative analysis METHODS: Eighty mice with induced focal cerebral ischemia were randomly divided into four groups: BA, Concha Margaritifera (CM), vehicle and sham group. A poly-dimensional comparative analysis of the expression levels of 374 stroke-related genes in each of the four groups was performed using MetaCore RESULTS: BA significantly reduced the ischemic infarct volume (P <0...
April 29, 2017: Brain Research
https://www.readbyqxmd.com/read/28460353/baicalin-ameliorates-chronic-unpredictable-mild-stress-induced-depressive-behavior-involving-the-inhibition-of-nlrp3-inflammasome-activation-in-rat-prefrontal-cortex
#17
Xiaoxin Liu, Chao Liu
Abnormal activation of nucleotide-binding domain, leucine-rich repeat, pyrin domain containing protein 3 (NLRP3) inflammasome could induce inflammation in the central nervous system and result in the hyperactivity of HPA axis, which were involved in the pathophysiology of depression. Baicalin, a major polyphenol compound extracts from Scutellaria radix roots, has been previously confirmed to normalize the hyperactivity of HPA axis in rats received chronic mild stress. However, its antidepressant effects and mechanisms are remains unclear in chronic unpredictable mild stress (CUMS) model of depression...
July 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28453568/baicalin-inhibits-biofilm-formation-attenuates-the-quorum-sensing-controlled-virulence-and-enhances-pseudomonas-aeruginosa-clearance-in-a-mouse-peritoneal-implant-infection-model
#18
Jing Luo, Biying Dong, Ke Wang, Shuangqi Cai, Tangjuan Liu, Xiaojing Cheng, Danqing Lei, Yanling Chen, Yanan Li, Jinliang Kong, Yiqiang Chen
The quorum sensing (QS) circuit plays a role in the precise regulation of genes controlling virulence factors and biofilm formation in Pseudomonas aeruginosa. QS-controlled biofilm formation by Pseudomonas aeruginosa in clinical settings has remained controversial due to emerging drug resistance; therefore, screening diverse compounds for anti-biofilm or anti-QS activities is important. This study demonstrates the ability of sub-minimum inhibitory concentrations (sub-MICs) of baicalin, an active natural compound extracted from the traditional Chinese medicinal Scutellaria baicalensis, to inhibit the formation of Pseudomonas aeruginosa biofilms and enhance the bactericidal effects of various conventional antibiotics in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28428751/identification-of-nf-%C3%AE%C2%BAb-as-determinant-of-posttraumatic-stress-disorder-and-its-inhibition-by-the-chinese-herbal-remedy-free-and-easy-wanderer
#19
Chunlan Hong, Anja Schüffler, Ulrich Kauhl, Jingming Cao, Ching-Fen Wu, Till Opatz, Eckhard Thines, Thomas Efferth
Posttraumatic stress disorder (PTSD) is a mental disorder developing after exposure to traumatic events. Although psychotherapy reveals some therapeutic effectiveness, clinically sustainable cure is still uncertain. Some Chinese herbal formulae are reported to work well clinically against mental diseases in Asian countries, but the safety and their mode of action are still unclear. In this study, we investigated the mechanisms of Chinese remedy free and easy wanderer (FAEW) on PTSD. We used a reverse pharmacology approach combining clinical data to search for mechanisms of PTSD with subsequent in vitro verification and bioinformatics techniques as follows: (1) by analyzing microarray-based transcriptome-wide mRNA expression profiling of PTSD patients; (2) by investigating the effect of FAEW and the antidepressant control drug fluoxetine on the transcription factor NF-κB using reporter cell assays and western blotting; (3) by performing molecular docking and literature data mining based on phytochemical constituents of FAEW...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28426226/brain-uptake-of-bioactive-flavones-in-scutellariae-radix-and-its-relationship-to-anxiolytic-effect-in-mice
#20
Sophia Yui Kau Fong, Chenrui Li, Yiu Cheong Ho, Rui Li, Qian Wang, Yin Cheong Wong, Hong Xue, Zhong Zuo
Scutellariae Radix (SR) and its bioactive flavones elicit a variety of effects in the brain. However, the brain uptake of individual SR flavones and its relationship to the elicited effects after SR administration remain unknown. Moreover, previous studies seldom measured pharmacokinetic and pharmacodynamic outcomes simultaneously. In the current study, the brain uptake of six major SR flavones and the anxiolytic behavior following oral administration of a SR extract at two clinically relevant doses (600 and 1200 mg/kg twice daily) were simultaneously investigated in mice (n = 18 per group)...
May 1, 2017: Molecular Pharmaceutics
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