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https://www.readbyqxmd.com/read/29334125/determination-of-isoorientin-levels-in-rat-plasma-after-oral-administration-of-vaccinum-bracteatum-thunb-methanol-extract-by-high-performance-liquid-chromatography-tandem-mass-spectrometry
#1
Min-Ji Kim, Seung-Hwan Kwon, Choon-Gon Jang, Han-Joo Maeng
A simple, sensitive and rapid liquid chromatography tandem mass spectrometry method (LC-MS/MS) was developed and validated for the determination of plasma isoorientin levels in rats. After simple protein precipitation using methanol, chromatographic analysis was performed using a Synergi 4μ polar-RP 80A column (150 mm × 2.0 mm, 4 μm) under isocratic conditions and a mobile phase consisting of 0.1% formic acid in water and methanol (80:20, v/v) at a flow rate of 0.2 mL/min. In positive electrospray ionization mode, the protonated precursor and product ion transitions of isoorientin (m/z 449...
January 15, 2018: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29332352/puerarin-leads-to-k562-cell-apoptosis-of-chronic-myelogenous-leukemia-via-induction-of-autophagy
#2
Da Gao, Zhen Xiao, Hui-Ping Li
PURPOSE: To study the effects of puerarin on the viability, apoptosis and autophagy of K562 cells of chronic myelogenous leukemia (CML), and to provide a basis for the study on antitumor mechanism of puerarin. METHODS: K562 cells of human CML were taken as the study material and puerarin was applied in different concentrations. The effect of puerarin on cell viability was detected via cholecystokinin-8 (CCK8) and lactate dehydrogenase (LDH). Flow cytometry and western blot (WB) were used to detect cell apoptosis, while Cyto-ID and WB were used to detect the cell autophagy level...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29330446/effect-of-puerarin-in-promoting-fatty-acid-oxidation-by-increasing-mitochondrial-oxidative-capacity-and-biogenesis-in-skeletal-muscle-in-diabetic-rats
#3
Xiu-Fang Chen, Lei Wang, Yong-Zheng Wu, Shi-Yu Song, Hai-Yan Min, Yan Yang, Xuan He, Qiao Liang, Long Yi, Yong Wang, Qian Gao
BACKGROUND: Type 2 diabetes is characterized by dyslipidemia and the accumulation of lipids in non-adipose tissue, including skeletal muscle. Puerarin, which is a natural isoflavonoid isolated from the root of the plant Pueraria lobata, has been shown to have antidiabetic activity. However, the lipid-reducing effect of puerarin, in particular in skeletal muscle, has not yet been addressed. METHODS: We examined the effect of puerarin on mitochondrial function and the oxidation of fatty acids in the skeletal muscle of high-fat diet/streptozotocin-induced diabetic rats...
January 12, 2018: Nutrition & Diabetes
https://www.readbyqxmd.com/read/29327124/puerarin-up-regulates-methyl-cpg-binding-protein-2-phosphorylation-in-hippocampus-of-vascular-dementia-rats
#4
Hu-Qing Wang, Meng Zhang, Jia-Xin Zhao, Hai-Qin Wu, Zhen Gao, Gui-Lian Zhang, Ru Zhang
OBJECTIVE: To observe the effect of puerarin on methyl-CpG binding protein 2 (MeCP2) phosphorylation (pMeCP2) in the hippocampus of a rat model of vascular dementia (VD). METHODS: Thirty-six healthy Sprague-Dawley rats were randomly assigned to the sham-operated group, dementia group and puerarintreated group using a random number table (n=12 per group). The modifified permanent bilateral common carotid artery occlusion method was used to establish the VD model...
January 9, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29322879/puerarin-prevents-diabetic-cardiomyopathy-in-vivo-and-in-vitro-by-inhibition-of-inflammation
#5
Mao-Shan Yin, Yi-Chi Zhang, Shu-Hong Xu, Jing-Jing Liu, Xiao-Hui Sun, Chen Liang, Yan Wang, Jie Li, Fu-Wen Wang, Qing-Li Wang, Yan-Ling Mu
Diabetic cardiomyopathy (DCM) is one of the chief diabetes mellitus complications. Inflammation factors may be one reason for the damage from DM. The purpose of this research is to study the potential protective effects of puerarin on DM and the possible mechanisms of action related to NF-κB signal pathway. Following administration of puerarin to the disease model rat, several changes were observed including the changes of serum biochemical index, improved diastolic dysfunction, and enhanced endogenous antioxidant enzymes activities, further NF-κB signaling activation...
January 11, 2018: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/29290948/puerarin-attenuates-locomotor-and-cognitive-deficits-as-well-as-hippocampal-neuronal-injury-through-the-pi3k-akt1-gsk-3%C3%AE-signaling-pathway-in-an-in-vivo-model-of-cerebral-ischemia
#6
Jinhao Tao, Yuehua Cui, Yu Duan, Nan Zhang, Congmin Wang, Fayong Zhang
Ischemic stroke causes irreversible damage to the brain. The hippocampus is a vulnerable region and plays an important role in cognition and locomotor activity. Puerarin is a phytoestrogen that has beneficial effects in treating neurological disorders. How puerarin protects against hippocampal injury and its molecular mechanisms remain to be elucidated. Transient global brain ischemia was induced by 4-vessel occlusion in adult male Sprague-Dawley rats. The rats were pretreated with puerarin alone or together with LY294002 (an PI3K inhibitor) before ischemia/reperfusion (I/R)...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29285079/effects-of-puerarin-on-the-retina-and-stat3-expression-in-diabetic-rats
#7
Yonghao Cai, Xiaobi Zhang, Xuegu Xu, Yinfei Yu
The effects of puerarin on electroretinogram, oxidative stress and STAT3 expression were determined, in diabetic rat retina and serum. Forty Sprague-Dawley rats were randomly divided into the normal control (NC), the diabetic model (DM), the low dose (250 mg/kg) puerarin (LP) or the high dose (500 mg/kg) puerarin group (HP). A diabetic rat model was induced by streptozotocin and animals were continuously treated for 4 weeks; fasting blood glucose was measured at 2 and 4 weeks after modeling. An electroretinogram and serum and tissue levels of glucose, insulin, superoxide dismutase (SOD), malondialdehyde (MDA) and total antioxidant capacity (T-AOC) were measured; real-time PCR and ELISA were used to determine STAT3 mRNA and protein expression, respectively, from the retina...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29273749/publisher-correction-puerarin-attenuates-diabetic-kidney-injury-through-the-suppression-of-nox4-expression-in-podocytes
#8
Xueling Li, Weijing Cai, Kyung Lee, Bohan Liu, Yueyi Deng, Yiping Chen, Xianwen Zhang, John Cijiang He, Yifei Zhong
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29238980/influence-of-paeoniflorin-and-menthol-on-puerarin-transport-across-mdck-and-mdck-mdr1-cells-as-blood-brain-barrier-in%C3%A2-vitro-model
#9
Bing Yang, Shouying Du, Yang Lu, Shan Jia, Mengdi Zhao, Jie Bai, Pengyue Li, Huichao Wu
OBJECTIVE: Our objective of this research was (1) to investigate the transport characteristics of puerarin through MDCK-MDR1 and MDCK cells and (2) to evaluate the effects of paeoniflorin and menthol on puerarin transport so as to (3) explore the enhancement mechanism. METHODS: The cytotoxicity of drugs on MDCK and MDCK-MDR1 was evaluated by the MTT assay, and the transport studies were performed in both directions. The membrane fluidity was evaluated by fluorescence recovery after photobleaching, and the membrane potential was estimated by the accumulation of DiBAC4(3) in the cells...
December 13, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29235289/-effects-of-drug-oil-properties-on-fabrication-of-drug-nanocrystalline-self-stabilizied-pickering-emulsions
#10
Fan Wang, Shuai Wang, Tao Yi, Ji-Fen Zhang
To investigate the effects of drug and oil properties on the formation and stability of drug nanocrystalline self-stabilizied Pickering emulsions (NSSPE). Three insoluble Chinese medicine components (puerarin, tanshinone ⅡA and ferulic acid) were selected as model drugs, and Capmul C8, Fabrafil M 1944 CS, isopropyl myristate, Pzechwan Lovage Rhizome oil, and olive oil were used as oil phase. NSSPEs were developed by high pressure homogenization method and were evaluated for their appearance, centrifugal stability, droplet size and drug content changes in emulsion layer after storing at room temperature for 14 d...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29235282/-research-progress-of-puerarin-and-its-derivatives-on-anti-inflammatory-and-anti-gout-activities
#11
REVIEW
Zhi-Hua Xing, Yu-Chang Ma, Xin-Ping Li, Bing Zhang, Meng-di Zhang
The research progress of puerarin and its derivatives in anti-inflammatory and anti-gout activities was reviewed in this paper. Puerarin possesses anti-inflammatory activity by affecting immunocyte, inflammation cytokines and signaling pathway. Puerarin also has anti-gout activity through inhibition of xanthine oxidase, promoting the excretion of uric acid to reduce serum uric acid level. Although its ability in reducing uric acid level was lower than that of allopurinol in clinical application, puerarin can also enhance the total antioxidant and free radical scavenging with stronger anti-inflammatory effect, so it will be a promising research direction to find new drugs with better anti-gout activity and less side effects by modifying the chemical structure of puerarin...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29207080/effect-of-puerarin-on-collagen-metabolism-of-fibroblasts-in-pelvic-tissue-of-women-with-pelvic-organ-prolapse
#12
Yang Li, Li Hong, Cheng Liu, Jie Min, Shasha Hong, Ming Hu, Yang Zhao, Qing Yang, Jianming Tang, Songming He
The aim of the present study was to investigate the protective effect of puerarin on pelvic organ prolapse (POP) and the underlying mechanisms that regulate the metabolism of human parametrial ligament fibroblasts (HPLFs). HPLFs obtained from the pelvic tissue of patients with (n=10) or without (n=8) POP during hysterectomy were isolated by enzymatic digestion and subsequently identified by immunocytochemistry in a previous study of the authors. Following this, cultured HPLFs were treated with 0.01, 0.10 or 1...
February 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29183150/effect-of-agave-americana-l-on-the-human-and-aspergillus-oryzae-s2-%C3%AE-amylase-inhibitions
#13
Mouna Sahnoun, Samir Bejar, Lobna Daoud, Leila Ayadi, Faiçal Brini, Walid Saibi
Among phenolic compounds, Agave americana L. extract contained puerarin (38.4%) and p-coumaric acid (12.29%) (pCa). From the Lineweaver-Burk plots, pCa and puerarin demonstrated a competitive and a non competitive inhibitions towards human α-amylase activity, respectively. PCa exhibited a higher human inhibitory activity with an IC50 of 98.8 μM which was about 2.3 times than acarbose. Puerarin (IC50 = 3.87 μM) and pCa (IC50 = 10.16 μM) also showed an excellent inhibition for Aspergillus oryzae S2 α-amylase activity...
November 28, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29179218/puerarin-enhances-ca2-reuptake-and-ca2-content-of-sarcoplasmic-reticulum-in-murine-embryonic-stem-cell-derived-cardiomyocytes-via-upregulation-of-serca2a
#14
Lu Wang, Yurong Cui, Qinghua Liu, Yuanlong Song, Qinghua Hu, Ming Tang, Jürgen Hescheler, Jiaoya Xi
BACKGROUND/AIMS: The embryonic stem cell-derived cardiomyocytes (ES-CMs) serve as potential sources for cardiac regenerative therapy. However, the immature sarcoplasmic reticulum (SR) function of ES-CMs prevents its application. In this report, we examined the effect of puerarin, an isoflavone compound, on SR function of murine ES-CMs. METHODS: Murine ES-CMs were harvested by embryoid body-based differentiation method. Confocal calcium imaging and whole-cell patch clamps were performed to assess the function of SR...
November 28, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29171242/-absorption-and-transport-of-isoflavonoid-compounds-from-tongmai-formula-across-human-intestinal-epithelial-caco-2-cells-in-vitro
#15
Fu-Rong Wang, Xiu-Wei Yang
Tongmai formula (TMF) is a drug combination of three components including Puerariae Lobatae Radix [roots of Pueraria lobata], Salviae Miltiorrhizae Radix (roots of Salvia miltiorrhiza) and Chuanxiong Rhizoma (rhizomes of Ligusticum chuanxiong) in a weight ratio of 1∶1∶1. The absorption and transport of isoflavonoid compounds from Tongmai formula across human intestinal epithelial (Caco-2) cells in vitro were studied in this paper. The assay isoflavonoid compounds include daidzein, formononetin, 5-hydroxylononin, ononin, daidzin, 3'-methoxypuerarin, genistin, puerarin, formononetin-8-C-β-D-apiofuranosyl-(1→6)-O-β-D-glucopyranoside, formononetin-7-O-β-D-apiofuranosyl-(1→6)-O-β-D-glucopyranoside, lanceolarin, kakkanin, daidzein-7,4'-di-O-β-D-glucopyranoside, mirificin, 3'-hydroxypuerarin, 3'-methoxydaidzin, formononetin-8-C-β-D-xylopyranosyl-(1→6)-O-β-D-glucopyranoside, genistein-8-C-β-D-apiofuranosyl-(1→6)-O-β-D-glucopyranoside, genistein-7-O-β-D-apiofuranosyl-(1→6)-O-β-D-glucopyranoside (ambocin), 3'-hydroxymirificin, 6″-O-β-D-xylosylpuerarin, biochanin A-8-C-β-D-apiofuranosyl-(1→6)-O-β-D-glucopyranoside, 3'-methoxydaidzein-7,4'-di-O-β-D-glucopyranoside, daidzein-7-O-β-D-glucopyranosyl-(1→4)-O-β-D-glucopyranoside, and daidzein-7-O-α-D-glucopyranosyl-(1→4)-O-β-D-glucopyranoside...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29158673/novel-cationic-lipid-nanoparticles-as-an-ophthalmic-delivery-system-for-multicomponent-drugs-development-characterization-in-vitro-permeation-in-vivo-pharmacokinetic-and-molecular-dynamics-studies
#16
Jialu Wang, Fang Zhao, Rui Liu, Jingjing Chen, Qinghua Zhang, Ruijuan Lao, Ze Wang, Xin Jin, Changxiao Liu
The purpose of this study was to prepare, optimize, and characterize a cationic lipid nanoparticle (CLN) system containing multicomponent drugs using a molecular dynamics model as a novel method of evaluating formulations. Puerarin (PUE) and scutellarin (SCU) were used as model drugs. CLNs were successfully prepared using melt-emulsion ultrasonication and low temperature-solidification technique. The properties of CLNs such as morphology, particle size, zeta potential, entrapment efficiency (EE), drug loading (DL), and drug release behavior were investigated...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29139265/-stability-optimization-of-puerarin-nanocrystalline-self-stabilizied-pickering-emulsion-by-response-surface-methodology
#17
Ji-Fen Zhang, Jiao Zhang, Fan Wang, Shuai Wang, Mei Wang, Tao Yi
A new Pickering emulsion, puerarin nanocrystalline self-stabilized Pickering emulsion (Pu-NSSPE) was developed. Box-Behnken design was used for optimizing the preparation formulation of Pu-NSSPE to improve its stability, and the effects of concentration of puerarin, volume ratio of water to oil, and pH value of water phase on the stratification index of emulsion, droplet size and drug concentration in emulsion were investigated. Results showed that the optimized Pu-NSSPE could be prepared with the concentration of puerarin of 0...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29121799/pueraria-lobate-inhibits-rankl-mediated-osteoclastogenesis-via-downregulation-of-creb-pgc1%C3%AE-c-fos-nfatc1-signaling
#18
Keun Ha Park, Dong Ryun Gu, Su Hyun Jin, Chi-Su Yoon, Wonmin Ko, Youn Chul Kim, Seoung Hoon Lee
Puerariae radix, the dried root of Pueraria lobate Ohwi, is known to prevent bone loss in ovariectomized mice; however, the precise molecular mechanisms are not understood. In this study, we investigated the effects and underlying mechanisms of action of Puerariae radix extract (PRE) on receptor activator of NF-κB ligand (RANKL)-induced osteoclastogenesis. PRE dose-dependently inhibited osteoclast differentiation and formation, decreased the bone-resorbing activity of osteoclasts, and downregulated the expression of osteoclast differentiation marker genes...
2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29113186/puerarin-induces-cell-apoptosis-in-human-chondrosarcoma-cell-line-sw1353-via-inhibition-of-the-pi3k-akt-signaling-pathway
#19
Li Huang, Junqing Cao, Lan Cao, Ling Gao, Ying Yang, Li Xu
Chondrosarcoma is a malignant soft tissue sarcoma with poor prognosis. Puerarin has been demonstrated to possess anticancer properties; however, the effects of puerarin in human chondrosarcoma cells remain unknown. The present study aimed to investigate the anticancer effects of puerarin in SW1353 human chondrosarcoma cells. SW1353 cells were treated with increasing concentrations of puerarin for different durations. Cell viability was evaluated using MTT assays. Cell apoptosis rates were determined by flow cytometry...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29101599/the-anxiolytic-like-effects-of-puerarin-are-associated-with-the-changes-of-monoaminergic-neurotransmitters-and-biosynthesis-of-allopregnanolone-in-the-brain
#20
Zhi-Kun Qiu, De-Sheng Zhong, Jia-Li He, Xu Liu, Ji-Sheng Chen, Hong Nie
Anxiety disorder is a serious and burdensome psychiatric illness that frequently turn into chronic clinical conditions. Puerarin have been shown to be effective in the therapy of depression. However, few studies are concerned about the anxiolytic-like effects of puerarin. The current study aimed to evaluate the anxiolytic-like effects of puerarin and its possible mechanism. To evaluate this, the behavioral tests, i.e. Vogel-type conflict test (VTCT), elevated plus-maze test (EPMT), and open-field test (OFT) were conducted...
November 3, 2017: Metabolic Brain Disease
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