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baicalin

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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
#1
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
#2
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
#3
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)...
April 20, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28417913/comparative-study-on-the-antivirus-activity-of-shuang-huang-lian-injectable-powder-and-its-bioactive-compound-mixture-against-human-adenovirus-iii-in-vitro
#4
Qinhai Ma, Dedong Liang, Shuai Song, Qintian Yu, Chunyu Shi, Xuefeng Xing, Jia-Bo Luo
Shuang-Huang-Lian injectable powder (SHL)-a classical purified herbal preparation extracted from Scutellaria baicalensis, Lonicera japonica, and Forsythia suspense-has been used against human adenovirus III (HAdV₃) for many years. The combination herb and its major bioactive compounds, including chlorogenic acid, baicalin, and forsythia glycosides A, are effective inhibitors of the virus. However, no comprehensive studies are available on the antiviral effects of SHL against HAdV₃. Moreover, it remains unclear whether the mixture of chlorogenic acid, baicalin, and forsythia glycosides A (CBF) has enhanced antiviral activity compared with SHL...
April 12, 2017: Viruses
https://www.readbyqxmd.com/read/28415453/role-of-generation-on-folic-acid-modified-poly-amidoamine-dendrimers-for-targeted-delivery-of-baicalin-to-cancer-cells
#5
Tingting Lv, Tingting Yu, Yunpeng Fang, Suyan Zhang, Minghong Jiang, Huijuan Zhang, Yingying Zhang, Ziying Li, Haijun Chen, Yu Gao
Baicalin (BAI) has been reported to exert antitumor effects. However, BAI has limited water solubility, non-specific tumor targeting, and low bioavailability, which severely limited its clinical application. The aim of this study was to develop folic acid (FA) covalently conjugated-polyamidoamine (PAMAM) dendrimers (PAMAM-FA) as carrier systems for improvement of water solubility and tumor-specificity of BAI, and study the role of generation on the physiochemical properties and biological effects of PAMAM-FA/BAI complexes...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28413465/protective-effects-of-baicalin-on-rabbit-articular-chondrocytes-in-vitro
#6
Xianyuan Huang, Huayu Wu, Liqin Wang, Li Zheng, Jinmin Zhao
Drug therapy is one of the typical treatments for post-injury inflammation of cartilage. Traditional Chinese herbs have potential as treatments, as their long history of clinical application has demonstrated they are effective and induce minimal side effects. Baicalin is a traditional Chinese medicine that has been used to treat inflammation, fever, ulcers and cancer for hundreds of years. Previous studies have demonstrated that baicalin may decrease levels of interleukin-1β and suppress the expression of type-I collagen, thus attenuating cartilage degeneration...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28396833/activation-of-ppar%C3%AE-by-baicalin-attenuates-pulmonary-hypertension-in-an-infant-rat-model-by-suppressing-hmgb1-rage-signaling
#7
Zhenjie Chen, Qiuxia Wang
Pulmonary hypertension (PH) is a vascular disease, and proinflammatory factors are strongly implicated in its pathogenesis, causing right ventricular (RV) hypertrophy and heart failure. Baicalin exhibits potent anti-inflammation activity. This study aimed to investigate the curative effects of baicalin in an infant rodent model of PH and to further explore the underlying mechanisms. A PH model in infant rats was induced by hypoxia and the resulting rats were administered baicalin in incremental dosages. Invasive hemodynamic methods were used to measure mean pulmonary arterial pressure (mPAP) and RV end-diastolic pressure (RVEDP)...
April 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28385083/anti-dhav-1-reproduction-and-immuno-regulatory-effects-of-a-flavonoid-prescription-on-duck-virus-hepatitis
#8
Yun Chen, Ling Zeng, Jingjing Yang, Yixuan Wang, Fangke Yao, Yi Wu, Deyun Wang, Yuanliang Hu, Jiaguo Liu
CONTEXT: The flavonoid prescription baicalin-linarin-icariin-notoginsenoside R1 (BLIN) has a curative effect on duck virus hepatitis (DVH) caused by duck hepatitis A virus type 1 (DHAV-1). However, the mechanism of this curative effect is not understood. OBJECTIVE: This study investigates the mechanism of the curative effect of BLIN on DVH caused by DHAV-1. We analyzed the anti-DHAV-1 reproduction mechanism and immuno-regulatory effect of BLIN. MATERIALS AND METHODS: The anti-DHAV-1 reproduction effects of BLIN at 20, 10, 5 and 2...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28385077/proteomic-analysis-and-functional-studies-of-baicalin-on-proteins-associated-with-skin-cancer
#9
Dan Li, Bingjiang Lin, Nabiha Yusuf, Erin M Burns, Xiuqin Yu, Dan Luo, Wei Min
Abundant evidence supports the key role of ultraviolet radiation (UVR) in skin cancer development. The human skin, especially the epidermal layer, is the main defense against UV radiation. Baicalin is a major bioactive component of Scutellaria baicalensis Georgi, a plant which has been found to exhibit antitumor activity. The anticarcinogenic mechanism of baicalin is not completely understood. We have reported that baicalin inhibited UVB-induced photo-damage and apoptosis in HaCaT cells (human skin keratinocytes)...
April 6, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28379900/baicalin-inhibits-human-osteosarcoma-cells-invasion-metastasis-and-anoikis-resistance-by-suppressing-the-transforming-growth-factor-%C3%AE-1-induced-epithelial-to-mesenchymal-transition
#10
Yanmao Wang, Huimin Wang, Runhua Zhou, Wanrun Zhong, Shengdi Lu, Zhongliang Ma, Yimin Chai
The epithelial-mesenchymal transition (EMT) plays an important role in inducing cancer metastasis. Baicalin, a flavone derivative isolated from Scutellaria spp., shows a series of pharmacological and physiological activities. However, the possible role of baicalin in the EMT is unclear. In this study, we attempted to investigate the potential use of baicalin as an inhibitor of transforming growth factor-β1 (TGF-β1)-induced EMT in U2OS cells. We found that TGF-β1 induced the EMT to promote U2OS cells migration, invasion, and anoikis resistance...
April 4, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28367715/two-armed-activation-of-bone-mineral-deposition-by-the-flavones-baicalin-and-baicalein-encapsulated-in-polyphosphate-microparticles
#11
Xiao-Hong Wang, Yue-Wei Guo, Emad Tolba, Maria Kokkinopoulou, Matthias Wiens, Heinz C Schröder, Werner E G Müller
In this study, we investigated the effect of the two flavonoids, baicalin (baicalein 7-O-β-d-glucuronic acid) and its aglycone, baicalein (5,6,7-trihydroxyflavone), after encapsulation into amorphous calcium polyphosphate (Ca-polyP) microparticles on mineralization of primary human osteoblasts (phOSB). Both flavonoids, which come from root extracts of Scutellaria baicalensis Georgi, are used in Traditional Chinese Medicine, and are nontoxic in cells up to a concentration of 3[Formula: see text]μg/ml. The morphogenetically active, energy-rich Ca-polyP particles with a stoichiometric P:Ca ratio of 1:2 are degraded by cellular alkaline phosphatase (ALP) to ortho-phosphate used for bone hydroxyapatite formation...
April 2, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28364700/pharmacokinetic-study-of-representative-anti-oxidative-compounds-from-denshen-chuanxiong-honghua-following-oral-administration-in-rats
#12
Xianhua Zhang, Wan Zheng, Huali Xu, Xi Huang, Ping Ren, Hui Zou, Guihua Liu, Jian Wang, Xinliang Ma
Almost no pharmacokinetic compounds to date have been precisely linked with the activity of their herbal or Traditional Chinese Medicine (TCM) formula. This creates challenges for pharmacokinetic significance and application of the TCM. In our study, a sensitive and selective liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to quantitatively or qualitatively determine multiple-components (tanshinol, ferulic acid, protocatechuic acid, rosmarinic acid, salvianolic acid B, baicalin and 9'-methyl lithospermate B) in rat plasma following the oral administration of Denshen-Chuanxiong-Honghua (DCH) extract (20g/kg)...
March 23, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28359800/baicalin-against-obesity-and-insulin-resistance-through-activation-of-akt-as160-glut4-pathway
#13
Penghua Fang, Mei Yu, Lei Zhang, Dan Wan, Mingyi Shi, Yan Zhu, Ping Bo, Zhenwen Zhang
Obesity may cause several metabolic complications, including insulin resistance and type 2 diabetes mellitus. Despite great advances in medicine, people still keep exploring novel and effective drugs for treatment of obesity and insulin resistance. The aim of this study was to survey if baicalin might ameliorate obesity-induced insulin resistance and to explore its signal mechanisms in skeletal muscles of mice. Diet-induced obese (DIO) mice were given 50 mg/kg baicalin intraperitoneally (i.p.) once a day for 21 days, and C2C12 myotubes were treated with 100, 200, 400 μM baicalin for 12 h in this study...
March 27, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28337193/baicalin-protects-mice-from-lethal-infection-by-enterohemorrhagic-escherichia-coli
#14
Yong Zhang, Zhimin Qi, Yan Liu, Wenqi He, Cheng Yang, Quan Wang, Jing Dong, Xuming Deng
Shiga-like toxin-producing Escherichia coli (STEC) O157:H7 poses grave challenges to public health by its ability to cause severe colonic diseases and renal failure in both human and animals. Shiga-like toxins are the major pathogenic factor for some highly virulent E. coli expecially Shiga-like toxin 2. Conventional treatments such as antibiotics can facilitate the release of the toxin thus potentially exacerbate the diseases. Small molecule inhibitors and antibodies capable of neutralizing the toxins are the two major venues for the development of therapeutics against enterohemorrhagic serotype E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28335189/synergistic-antibacterial-effects-of-nanoparticles-encapsulated-with-scutellaria-baicalensis-and-pure-chlorhexidine-on-oral-bacterial-biofilms
#15
Ken Cham-Fai Leung, Chaminda Jayampath Seneviratne, Xuan Li, Ping Chung Leung, Clara Bik San Lau, Chi-Hin Wong, Ka Yan Pang, Chun Wai Wong, Elaine Wat, Lijian Jin
Scutellariabaicalensis (SB) is a traditional Chinese medicine for treating infectious and inflammatory diseases. Our recent study shows potent antibacterial effects of nanoparticle-encapsulated chlorhexidine (Nano-CHX). Herein, we explored the synergistic effects of the nanoparticle-encapsulated SB (Nano-SB) and Nano-CHX on oral bacterial biofilms. Loading efficiency of Nano-SB was determined by thermogravimetric analysis, and its releasing profile was assessed by high-performance liquid chromatographyusing baicalin (a flavonoid compound of SB) as the marker...
April 7, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28332768/separation-of-caffeoylquinic-acids-and-flavonoids-from-asteris-souliei-by-high-performance-counter-current-chromatography-and-their-anti-inflammatory-activity-in-vitro
#16
Qiang Zhang, He-Ying Pei, Kai Chen, Huan Tang, Bo Wu, Ming-Hai Tang, Ai-Hua Peng, Hao-Yu Ye, Li-Juan Chen
Eleven compounds were successfully separated from Asteris souliei by using a two-step high-performance counter-current chromatography method. The first step involved a reversed phase isocratic counter-current chromatography separation using hexane/ethyl acetate/methanol/water (1:0.8:1:1 v/v/v/v), which produced three fractions, the first two of which were mixtures. The second step used step-gradient reversed-phase counter-current chromatography with hexane/butanol/ethyl acetate/methanol/water (1:0.5:3.5:1:4 v/v/v/v/v) initially followed by hexane/ethyl acetate/methanol/water (1:2:1:2 v/v/v/v) to separate Fraction 1 into seven compounds; and hexane/ethyl acetate/methanol/water (1:1:1:1...
March 23, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28322895/baicalin-benefits-the-anti-hbv-therapy-via-inhibiting-hbv-viral-rnas
#17
COMPARATIVE STUDY
Hai Huang, Wei Zhou, Haiyan Zhu, Pei Zhou, Xunlong Shi
BACKGROUND: Although current antiviral treatments (nucleoside analogs, NAs) for chronic hepatitis B virus (HBV) infection are effective in suppressing HBV-DNA replication, their clinical outcomes can be compromised by the increasing drug resistance and the inefficiency in promoting HBsAg/HBeAg seroconversion. OBJECTIVES: In this study, we will explore possible effects and mechanism of a natural product baicalin (BA) with the anti-HBV efficacy of entecavir (ETV), a first-line anti-HBV drug, in HBV-DNA, HBsAg/HBeAg seroconversion and drug-resistance...
May 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28319184/streptococcus-suis-sortase-a-is-ca2-independent-and-is-inhibited-by-acteoside-isoquercitrin-and-baicalin
#18
Fuguang Chen, Fang Xie, Baoling Yang, Chengcheng Wang, Siguo Liu, Yueling Zhang
Sortase A (SrtA) has long been recognized as an ideal drug target for therapeutic agents against Gram-positive pathogens. However, the SrtA of Streptococcus suis (Ss-SrtA), an important zoonotic agent, has not been studied. In this study, the enzymatic properties of Ss-SrtA were investigated, and inhibition of Ss-SrtA by natural products was evaluated. Ss-SrtA was expressed and purified. The purified recombinant Ss-SrtA had maximal activity at pH 6.0-7.5, 45°C, and showed a Km of 6.7 μM for the hydrolysis of substrate abz-LPATG-dnp...
2017: PloS One
https://www.readbyqxmd.com/read/28306207/development-and-validation-of-a-uhplc-ms-ms-method-for-the-simultaneous-determination-of-five-bioactive-flavonoids-in-rat-plasma-and-comparative-pharmacokinetic-study-after-oral-administration-of-xiaochaihu-tang-and-three-compatibilities
#19
Yunhai Bo, Lijuan Wang, Xiao Wu, Longshan Zhao, Jingyu Yang, Zhili Xiong, Chunfu Wu
An accurate, rapid and reliable ultra high performance liquid chromatography with tandem mass spectrometry method was developed and validated for the simultaneous determination of baicalin, wogonoside, baicalein, wogonin and oroxylinA in rat plasma. Then, the stability of baicalin and baicalein in the preparation of plasma sample was systematically investigated. The Waters BEH C18 column was used with a gradient mobile phase system of acetonitrile and water containing 0.1% formic acid. The analytes were detected in the multiple reaction monitoring mode with positive electrospray ionization...
March 17, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28299800/the-formation-of-a-host-guest-inclusion-complex-system-between-%C3%AE-cyclodextrin-and-baicalin-and-its-dissolution-characteristics
#20
Jing Li, Qihua Jiang, Ping Deng, Qian Chen, Mingan Yu, Jingchuan Shang, Wei Li
OBJECTIVES: Baicalin (BCL) has potential therapeutic benefits, but its clinical outcomes are restricted mainly because of low water solubility. This study sought to improve the water solubility of BCL by the formation of inclusion complex with β-cyclodextrin (β-CD). METHODS: The inclusion complex was studied by solubility test, differential scanning calorimeter (DSC), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), (1) H Nuclear magnetic resonance ((1) HNMR) and scanning electron microscopy (SEM)...
March 16, 2017: Journal of Pharmacy and Pharmacology
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