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https://www.readbyqxmd.com/read/29143574/investigating-the-preventive-effects-of-baicalin-and-gallocatechin-aginst-glyoxal-induced-cystatin-aggregation
#1
Aamir Sohail, Waseem Feeroze Bhat, Mohammad Furkan, Aaliya Shah, Bilqees Bano
Several mammalian proteins form pathological deposits under nonphysiological conditions that are associated with many degenerative diseases. Protein aggregation is associated with aging, as well as a variety of diseases, including cystic fibrosis, amyotrophic lateral sclerosis (ALS), and hypertrophic cardiomyopathy. There is a lack of any potential anti-amyloidogenic agents and therapeutics till date. Polyphenols have been accredited with myriad biological effects. An analysis of the effects of natural agents like baicalin (BC) and gallocatechin (GC) on aggregation process can open new avenues for the treatment of protein misfolding diseases...
November 16, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29138445/inhibition-activity-of-a-traditional-chinese-herbal-formula-huang-lian-jie-du-tang-and-its-major-components-found-in-its-plasma-profile-on-neuraminidase-1
#2
Xuelin Zhou, Haotian Li, Zhilong Shi, Sijia Gao, Shizhang Wei, Kun Li, Jiabo Wang, Jianyu Li, Ruilin Wang, Man Gong, Yanling Zhao, Xiaohe Xiao
Huang-Lian-Jie-Du-Tang (HLJDT), a traditional formula with four TCM herbs, has been used for hundred years for different diseases. The current study aimed to assess the inhibitory activity of HLJDT against H1N1 neuraminidase (NA-1), and identify potent NA-1 inhibitors from its plasma profile. The in vitro NA-1 study has shown that the water extract of HLJDT potently inhibited NA-1 (IC50 = 112.6 μg/ml; Ki = 55.6 μg/ml) in a competitive mode. The IC50 values of the water extracts of its four herbs were as follows: Coptidis Rhizoma, 96...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29136826/preparation-and-evaluation-of-magnetic-molecularly-imprinted-polymers-for-the-specific-enrichment-of-phloridzin
#3
Die Gao, Dan-Dan Wang, Qi-Feng Fu, Lu-Jun Wang, Kai-Lian Zhang, Feng-Qing Yang, Zhi-Ning Xia
In present study, magnetic molecularly imprinted polymers (MMIPs) were successfully prepared for specific recognition and selective enrichment of phloridzin from the leaves of Malus doumeri (Bois) A. Chev and rats' plasma. The magnetic Fe3O4 were prepared by the solvothermal reaction method and followed by the modification of TEOS and functionalization with APTES. Using functionalized Fe3O4 particles as the magnetic cores, phloridzin as template, ethylene glycol dimethacrylate (EGDMA) as cross-linker and 2,2-azobisisobutyonnitrile (AIBN) as initiator, the MMIPs were prepared through APTES to associate the template on the surface of the magnetic substrate...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29134502/the-influence-of-compatibility-of-rhubarb-and-radix-scutellariae-on-the-pharmacokinetics-of-anthraquinones-and-flavonoids-in-rat-plasma
#4
Yaqing Zhang, Zunjian Zhang, Rui Song
BACKGROUND AND OBJECTIVES: Rhubarb-Radix scutellariae is a classic herb pair, which is commonly used to clear away heat and toxin in clinic. The aim of this study was to investigate the influence of compatibility of Rhubarb and Radix scutellariae on the pharmacokinetic behaviors of anthraquinones and flavonoids in rat plasma. METHODS: Eighteen rats were randomly divided into three groups, and were orally administered Rhubarb and/or Radix scutellariae extracts. A sensitive and rapid UPLC-MS/MS method was developed and validated to determine the concentrations of baicalin, baicalein, wogonside, wogonin, rhein, and emodin in rat plasma...
November 14, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/29128794/baicalin-protects-against-gastroduodenal-ulcers-via-the-modulation-of-nrf2-expression-experimental-biochemical-and-histological-analyses
#5
Tao Zhang, Dong Yang, Xiangyu Meng
BACKGROUND: The present study aimed to determine the mechanisms underlying the gastroprotective effects of baicalin using several animal models of chemically induced gastric ulcers. METHODS: The gastroprotective effects of baicalin against ulcers induced by water immersion stress, alcohol-induced ligation, and indomethacin-induced pylorus ligation were assessed in the present study. Additionally, macroscopic evaluations were performed at the completion of the study and Western blot analyses of Nrf2 were conducted to determine the possible mechanisms of action underlying the effects of baicalin...
July 8, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29080912/baicalin-alleviates-oxidative-stress-damage-in-trabecular-meshwork-cells-in-vitro
#6
Lei Gong, Jianfeng Zhu
Oxidative stress and inflammation play a key role in pathophysiology of glaucoma. Baicalin is known as an anti-oxidative and anti-inflammatory substance, possessing the potential to treat glaucoma. This study was designed to assess the anti-oxidative and anti-inflammatory potentials in culture human trabecular meshwork (hTM) cells. Using hTM cells as the in vitro model, we investigated the effects of baicalin on oxidative stress-induced markers for hTM impairments. We pre-incubated hTM cells with baicalin before hydrogen peroxide stressing or pre- plus co-incubated with baicalin before and during stressing and monitored the cell death, production of intracellular reactive oxygen species (iROS) and inflammatory cytokines, accumulation of carbonylated proteins, and activity of senescence marker...
October 28, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29073478/simultaneous-determination-and-pharmacokinetics-of-fourteen-bioactive-compounds-in-rat-plasma-by-lc-esi-ms-ms-following-intravenous-injection-of-gegen-sanqi-compatibility-solution
#7
Bin Ji, Xing Zhao, Peipei Yu, Lin Meng, Yunli Zhao, Zhiguo Yu
A high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) method was developed and fully validated for simultaneous determination of puerarin, 3'-hydroxy puerarin, 6″-O-xylosyl puerarin, 3'-methoxy puerarin, mirificin, puerarin-7-O-glucoside, daidzin, daidzein, daidzein-7-O-glucoside, ginsenoside-Rd, notoginsenoside-R1, ginsenoside-Re, ginsenoside-Rg1, ginsenoside-Rb1 in rat plasma after intravenous injection of 5mL/kg Gegen-Sanqi compatibility solution (containing Pueraria flavonid 10...
October 16, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29057927/use-of-the-relative-release-index-for-histamine-in-lad2-cells-to-evaluate-the-potential-anaphylactoid-effects-of-drugs
#8
Shengli Han, Yanni Lv, Liyun Kong, Delu Che, Rui Liu, Jia Fu, Jiao Cao, Jue Wang, Cheng Wang, Huaizhen He, Tao Zhang, Xinzhong Dong, Langchong He
Anaphylactoid reactions are common clinical acute adverse drug reactions that can exacerbate a patient's condition and produce effects that may become life-threatening. Therefore, it is important to establish a novel method to evaluate drugs for anaphylactoid reactions. In this study, we developed a sensitive and rapid method to detect histamine release from LAD2 cells using liquid chromatography-tandem mass spectrometry (LC-MS/MS) and constructed a relative release index based on various release curve parameters, including allergen release time and sudden change rate, to evaluate the potential and strength of allergen-induced anaphylactoid reactions...
October 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29052385/-research-advances-on-baicalin-and-baicalein-as-potential-therapeutic-agents-for-fibrotic-disease
#9
REVIEW
Qing-Jun Zhu
Tissue and organ fibrosis is the major cause for disability and death related to a variety of diseases worldwide. As specific therapies to halt, or even to reverse the existing tissue fibrosis are not yet available, it is of great significance to find new anti-fibrosis therapeutic agents. Tissue and organ fibrosis is a nonphysiological scarring process, associated with excessive deposition of extracellular matrix, and leads to impairment of organ function. Fibrotic lesions of all organs show similar histological abnormalities...
April 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29048491/simultaneous-quantification-of-eight-marker-compounds-in-yongdamsagan-tang-using-a-high-performance-liquid-chromatography-equipped-with-photodiode-array-detector
#10
Chang-Seob Seo, Hyeun-Kyoo Shin
Yongdamsagan-tang (YDSGT) has been used clinically for the treatment of acute- and chronic-urethritis, cystitis, orchitis and hypertension in Korea. In this study, a powerful method based on high-performance liquid chromatography (HPLC) with photodiode array (PDA) detection was established and validated for the quantitative analysis of eight components: chlorogenic acid, gentiopicroside, liquiritin apioside, liquiritin, nodakenin, baicalin, wogonoside and glycyrrhizin in YDSGT extract. The compounds were separated with a Gemini C18 analytical column (column temperature: 40°C; mobile phase: 0...
October 1, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/29047162/baicalin-protects-h9c2-cardiomyocytes-against-hypoxia-reoxygenation-induced-apoptosis-and-oxidative-stress-through-activation-of-mitochondrial-aldehyde-dehydrogenase-2
#11
Wen-Bin Jiang, Wei Zhao, Hao Chen, You-Yang Wu, Yi Wang, Guo-Sheng Fu, Xiang-Jun Yang
Baicalin, a flavonoid glycoside separated from Scutellaria baicalensis, has cardioprotection against ischemia/reperfusion (I/R) injury. Mitochondrial aldehyde dehydrogenase 2 (ALDH2) is considered as an endogenous protective mechanism against I/R injury depending on its antioxidant and antiapoptotic characteristics. Herein, the present study demonstrate whether ALDH2 contributes to the cardioprotection of baicalin against hypoxia/reoxygenation (H/R)-inudced H9c2 cardiomyocytes injury. Our results observed that H/R treatment resulted in a significant decrease in cells viability and obvious increases in caspase-3 activity and apoptosis rate in H9c2 cells, while these alterations were evidently reversed by baicalin pretreatment...
October 19, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29040937/a-sensitive-hplc-ms-method-for-simultaneous-determination-of-thirteen-components-in-rat-plasma-and-its-application-to-pharmacokinetic-study-of-tanreqing-injection
#12
Su-Xiang Feng, Xian-He Li, Meng-Meng Wang, Rui Hao, Meng-Meng Li, Lei Zhang, Zhe Wang
A rapid, sensitive and selective method based on high-performance liquid chromatography coupled with Q-Exactive mass spectrometry was developed and validated for simultaneous quantification of thirteen components in rat plasma, including chlorogenic acid, 5-caffeoylquinic acid, 4-caffeoylquinic acid, luteoloside, isochlorogenic acid A, B and C, scutellarin, baicalin, wogonin, baicalein, phillyrin and forsythoside A. After precipitating proteins from the plasma samples with methanol, chromatographic separation of the thirteen components was achieved by using an XBridge™ C18 column (2...
October 13, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29039573/antitumor-effects-of-baicalin-on-ovarian-cancer-cells-through-induction-of-cell-apoptosis-and-inhibition-of-cell-migration-in%C3%A2-vitro
#13
Chen Gao, Yinglu Zhou, Huatao Li, Xia Cong, Zhongling Jiang, Xin Wang, Rongfeng Cao, Wenru Tian
Baicalin, an active flavone isolated from Scutellaria baicalensis Georgi, has been demonstrated to induce various beneficial biochemical effects such as anti‑inflammatory, anti‑viral, and antitumor effects. However, the antitumor mechanism of baicalin is not well understood. In the present study, baicalin was demonstrated to inhibit the viability and migration of a widely used ovarian cancer cell line, A2780, in a dose‑dependent manner. MTT assays revealed that cell viability significantly decreased in ovarian cancer cells treated with baicalin compared with untreated cells, without effect on normal ovarian cells...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29039569/baicalin-inhibits-the-metastasis-of-highly-aggressive-breast-cancer-cells-by-reversing-epithelial-to-mesenchymal-transition-by-targeting-%C3%AE-catenin-signaling
#14
Tao Zhou, Aijie Zhang, Ge Kuang, Xia Gong, Rong Jiang, Dan Lin, Jie Li, Hongzhong Li, Xiang Zhang, Jingyuan Wan, Hongyuan Li
Metastasis is the main cause of death in breast cancer patients, which is due partly to the lack of effective treatment. Baicalin, a flavonoid compound isolated from the roots of Scutellaria lateriflora Georgi (Huang Qin), has recently been confirmed as an effective agent for the treatment of a variety of cancers. Yet, the effects and underlying molecular mechanisms of baicalin in regards to the metastasis of breast cancer remain unclear. In the present study, we found that baicalin had the potential to suppress the migration and invasion of highly aggressive breast cancer cells in a dose-dependent manner but had no impact on the viability of these cancer cells...
September 28, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29039516/baicalin-alleviates-h2o2%C3%A2-induced-injury-of-h9c2-cardiomyocytes-through-suppression-of-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway
#15
Liman Qiu, Jinxiao Chen, Jing Lin, Da Wo, Jianfeng Chu, Jun Peng
Baicalin is one of the active ingredients extracted from the dry root of Scutellaria baicalensis Georgi, which has been reported to be effective in preventing myocardial ischemia reperfusion injury. However, the mechanisms underlying its cardioprotective activities remain to be elucidated. In the present study, H2O2‑treated cardiomyocyte H9c2 cell line served as an in vitro model of oxidation‑damaged cardiomyocytes to evaluate the effects of baicalin on the cardiac injury, and to investigate the underlying molecular mechanism...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29038007/baicalin-and-ginsenoside-rb1-promote-the-proliferation-and-differentiation-of-neural-stem-cells-in-alzheimer-s-disease-model-rats
#16
Jiwei Zhao, Shanshan Lu, Hongli Yu, Shurong Duan, Jingkun Zhao
BACKGROUND: This study aimed to explore the effect of ginsenoside Rb1 and baicalin on the proliferation and differentiation of neural stem cells (NSC) in Alzheimer's disease model rats. METHOD: The healthy Sprague Dawley male rats were randomly divided into 4 groups: control group, model group, ginsenoside Rb1 group and baicalin group. Besides, the animal model of dementia was induced by the injection of Aβ1-40. 2 weeks later, the rats in the baicalin and ginsenoside Rb1 groups were injected with baicalin and ginsenoside Rb1, respectively...
October 13, 2017: Brain Research
https://www.readbyqxmd.com/read/29031535/baicalin-protects-aml-12-cells-from-lipotoxicity-via-the-suppression-of-er-stress-and-txnip-nlrp3-inflammasome-activation
#17
Junli Zhang, Haiming Zhang, Xiaoling Deng, Yuping Zhang, Keshu Xu
Baicalin (BA) is an active flavonoid compound originating from the root of Scutellaria baicalensis Georgi that has been reported to exert anti-inflammation and anti-oxidant effects in liver diseases with a long history. However, its protective and regulatory mechanisms on palmitic acid (PA) induced hepatocyte lipotoxicity remain elusive. In the present work, we investigated the cytoprotective effects of BA in AML-12 hepatocytes against lipotoxicity by inhibiting ER stress, oxidative stress and apoptosis. Our results demonstrated that ER stress was induced by 400 μM PA in AML-12 cells with elevated expression of ER stress marker IRE1α hyperphosphorylation...
October 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29031222/apolipoproteins-adsorption-and-brain-targeting-evaluation-of-baicalin-nanocrystals-modified-by-combination-of-tween80-and-tpgs
#18
Yang Liu, Yueqin Ma, Junnan Xu, Yingchong Chen, Jin Xie, Pengfei Yue, Qin Zheng, Ming Yang
To help baicalin pass across BBB and improve its targeting in brain, we designed a novel formulation strategy of baicalin nanocrystals that preferentially adsorbing apolipoprotein E (ApoE) and repelling protein adsorption of opsonins. Intravenous baicalin nanocrystals suspensions (BCL-NS) modified by different surfactant were prepared by high-pressure homogenization. The targeting potential of surface-modified BCL-NS with mean particles size of about 250nm was assessed by in vitro protein adsorption studies using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE), and further evaluated in vivo pharmacokinetics...
October 5, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29028535/baicalin-and-its-metabolites-suppresses-gluconeogenesis-through-activation-of-ampk-or-akt-in-insulin-resistant-hepg-2-cells
#19
Tao Wang, Hongmei Jiang, Shijie Cao, Qian Chen, Mingyuan Cui, Zhijie Wang, Dandan Li, Jing Zhou, Tao Wang, Feng Qiu, Ning Kang
Scutellaria baicalensis Georgi (S. baicalensis), as a traditional Chinese herbal medicine, is an important component of several famous Chinese medicinal formulas for treating patients with diabetes mellitus. Baicalin (BG), a main bioactive component of S. baicalensis, has been reported to have antidiabetic effects. However, pharmacokinetic studies have indicated that BG has poor oral bioavailability. Therefore, it is hard to explain the pharmacological effects of BG in vivo. Interestingly, several reports show that BG is extensively metabolized in rats and humans...
December 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29027677/comparison-of-plasma-pharmacokinetics-of-tanreqing-solution-between-intratracheal-aerosolization-and-intravenous-injection-in-rats
#20
Cui Li, Siyu Liu, Gan Luo, Guohua Wang, Baoxian Zhang, Qixia Nie
A rapid ultra high performance liquid chromatography tandem mass spectrometry method was developed for the simultaneous analysis of baicalin, oroxylin A-7-O-β-D-glucoronide and chlorogenic acid in rats plasma, and it was applied to comparison of pharmacokinetics of Tanreqing solution between intratracheal aerosolization and intravenous injection. Results of the analytical method validation assay showed high sensitivity, accuracy and suitable recovery. Results of pharmacokinetics showed a similar decline phase for baicalin, oroxylin A-7-O-β-D-glucoronide and chlorogenic acid in two different delivery routes...
October 13, 2017: Biomedical Chromatography: BMC
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