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Epimedium

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https://www.readbyqxmd.com/read/28884956/osteoblast-cell-membrane-chromatography-coupled-with-liquid-chromatography-and-time-of-flight-mass-spectrometry-for-screening-specific-active-components-from-traditional-chinese-medicines
#1
Nani Wang, Qiaoyan Zhang, Hailiang Xin, Dan Shou, Luping Qin
A method using osteoblast membrane chromatography coupled with liquid chromatography and time-of-flight mass spectrometry was developed to recognize and identify the specific active components from traditional Chinese medicines. Primary rat osteoblasts were used for the preparation of the stationary phase in the cell chromatography method. Retention components from the cell chromatography were collected and analyzed by liquid chromatography with time-of-flight mass spectrometry. This method was applied in screening active components from extracts of four traditional Chinese medicines...
September 8, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28801043/rapid-identification-of-herbal-compounds-derived-metabolites-using-zebrafish-larvae-as-the-biotransformation-system
#2
Chen Wang, Ying-Hao Yin, Ying-Jie Wei, Zi-Qi Shi, Jian-Qun Liu, Li-Fang Liu, Gui-Zhong Xin
Metabolites derived from herbal compounds are becoming promising sources for discovering new drugs. However, the rapid identification of metabolites from biological matrixes is limited by massive endogenous interference and low abundance of metabolites. Thus, by using zebrafish larvae as the biotransformation system, we herein proposed and validated an integrated strategy for rapid identification of metabolites derived from herbal compounds. Two pivotal steps involved in this strategy are to differentiate metabolites from herbal compounds and match metabolites with their parent compounds...
July 29, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28798396/flavonoid-glycosides-isolated-from-epimedium-brevicornum-and-their-estrogen-biosynthesis-promoting-effects
#3
Fu Li, Bao-Wen Du, Dan-Feng Lu, Wen-Xuan Wu, Kanjana Wongkrajang, Lun Wang, Wen-Chen Pu, Chang-Lu Liu, Han-Wei Liu, Ming-Kui Wang, Fei Wang
Epimedium brevicornum Maxim has a long history of use in the treatment of estrogen deficiency-related diseases. However, the chemical constituents and mechanism of action of this medicinal plant are not fully understood. In the present study, we isolated four new isoprenylated flavonoid glycosides, as well as 16 known flavonoids (13 isoprenylated flavonoids), from this plant. The chemical structures of the new flavonoid glycosides were elucidated by extensive spectroscopic analysis. The new compounds 1-4 were potent promoters of estrogen biosynthesis in human ovarian granulosa-like KGN cells...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28769969/functional-characterization-of-a-novel-r2r3-myb-transcription-factor-modulating-the-flavonoid-biosynthetic-pathway-from-epimedium-sagittatum
#4
Wenjun Huang, Haiyan Lv, Ying Wang
Epimedium species have been widely used both as traditional Chinese medicinal plants and ornamental perennials. Both flavonols, acting as the major bioactive components (BCs) and anthocyanins, predominantly contributing to the color diversity of Epimedium flowers belong to different classes of flavonoids. It is well-acknowledged that flavonoid biosynthetic pathway is predominantly regulated by R2R3-MYB transcription factor (TF) as well as bHLH TF and WD40 protein at the transcriptional level. MYB TFs specifically regulating anthocyanin or flavonol biosynthetic pathway have been already isolated and functionally characterized from Epimedium sagittatum, but a R2R3-MYB TF involved in regulating both these two pathways has not been functionally characterized to date in Epimedium plants...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28742995/icaritin-induces-mc3t3-e1-subclone14-cell-differentiation-through-estrogen-receptor-mediated-erk1-2-and-p38-signaling-activation
#5
Zhidi Wu, Ling Ou, Chaopeng Wang, Li Yang, Panpan Wang, Hengrui Liu, Yingquan Xiong, Kehuan Sun, Ronghua Zhang, Xiaofeng Zhu
Icaritin (ICT), a hydrolytic product of icariin from the genus Epimedium, has many indicated pharmacological and biological activities. Several studies have shown that ICT has potential osteoprotective effects, including stimulation of osteoblast differentiation and inhibition of osteoclast differentiation. However, the molecular mechanism for this anabolic action of ICT remains largely unknown. Here, we found that ICT could enhance MC3T3-E1 subclone 14 preosteoblastic cell differentiation associated with increased mRNA levels and protein expression of the differentiation markers alkaline phosphatase (ALP), type 1 collagen (COL1), osteocalcin (OC), osteoponin (OPN) and runt-related transcription factor 2 (RUNX2), and improved mineralization, confirmed by bone nodule formation and collagen synthesis...
October 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28653752/the-potential-of-epimedium-koreanum-nakai-for-herb-drug-interaction
#6
Qingxiang Zhong, Ziqi Shi, Li Zhang, Rongling Zhong, Zhi Xia, Jing Wang, Hao Wu, Yutong Jiang, E Sun, Yingjie Wei, Liang Feng, Zhenhai Zhang, Dan Liu, Jie Song, Xiaobin Jia
OBJECTIVES: This study aims to investigate potential herb-drug interactions (HDI) of Epimedium koreanum Nakai. METHODS: Human liver microsomes (HLMs) were used to determine the enzyme kinetics of the major human cytochrome P450s (CYPs). Inducible potential of E. koreanum on CYP1A2, 2B6, 2C19 and 3A4 activities of human primary hepatocytes was also examined. KEY FINDINGS: Ethanol extract of E. koreanum showed direct inhibitory potency for CYP1A2 (IC50  = 121...
June 27, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28627460/polysaccharides-from-epimedium-koreanum-nakai-with-immunomodulatory-activity-and-inhibitory-effect-on-tumor-growth-in-llc-bearing-mice
#7
Chengcheng Wang, Liang Feng, Jiayan Su, Li Cui, Dan Liu, Jun Yan, Chuanlin Ding, Xiaobin Tan, Xiaobin Jia
ETHNOPHARMACOLOGICAL RELEVANCE: Epimedium koreanum Nakai is documented as tonic herbal in China for over a thousand years and has the potential to enhance the body's immunity according to the theory of traditional Chinese medicine. Polysaccharides are one of the most important effective compounds in Epimedium koreanum Nakai. Accumulating evidence indicated polysaccharides derived from traditional Chinese medicine have potent immune-enhancing properties and relatively nontoxic effects in cancer treatment...
June 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28620728/contents-of-heavy-metals-in-chinese-edible-herbs-evidence-from-a-case-study-of-epimedii-folium
#8
Xiao-Hua Yang, Hua-Feng Zhang, Li-Li Niu, Ying Wang, Jiang-Hua Lai
Toxic heavy metal contamination in Chinese edible herbs has raised a worldwide concern. In this study, heavy metals in Epimedii Folium, an edible medicinal plant in China, were quantitatively analyzed. Variations of heavy metals in different species, in various organs (i.e., leaves, stems, and roots), in wild-growing and cultivated plants, and in 35 market samples of Epimedii Folium, were systematically investigated. In all of Epimedium samples, Hg (mercury) was not detectable (0.00 μg/g). Four species, Epimedium pubescens, Epimedium sagittatum, Epimedium brevicornu, and Epimedium wushanense, were found to contain Cu (copper) and Pb (lead)...
June 16, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28619001/icariin-attenuates-interleukin-1%C3%AE-induced-inflammatory-response-in-human-nucleus-pulposus-cells
#9
Wen-Bin Hua, Yu-Kun Zhang, Xing-Huo Wu, Liang Kang, Ji Tu, Kang-Cheng Zhao, Shuai Li, Kun Wang, Yu Song, Rong-Jin Luo, Zeng-Wu Shao, Cao Yang
BACKGROUND: Low back pain is a common problem, mainly caused by intervertebral disc degeneration (IDD). An important pathophysiological characteristic of IDD is the loss of homeostatic balance of the extracellular matrix metabolism. Interleukin-1β (IL-1β) is one of the inflammatory mediators stimulating the degradation of extracellular matrix in the nucleus pulposus (NP) and contributing to IDD pathogenesis. Icariin, which is isolated from Epimedium brevicornum, acts as an anti-inflammatory drug...
June 15, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28608833/potential-of-icariin-metabolites-from-epimedium-koreanum-nakai-as-antidiabetic-therapeutic-agents
#10
Da Hye Kim, Hyun Ah Jung, Hee Sook Sohn, Jin Woong Kim, Jae Sue Choi
The therapeutic properties of Epimediumkoreanum are presumed to be due to the flavonoid component icariin, which has been reported to have broad pharmacological potential and has demonstrated anti-diabetic, anti-Alzheimer's disease, anti-tumor, and hepatoprotective activities. Considering these therapeutic properties of icariin, its deglycosylated icaritin and glycosylated flavonoids (icaeriside II, epimedin A, epimedin B, and epimedin C) were evaluated for their ability to inhibit protein tyrosine phosphatase 1B (PTP1B) and α-glucosidase...
June 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28560001/icariside-ii-induces-cell-cycle-arrest-and-apoptosis-in-human-glioblastoma-cells-through-suppressing-akt-activation-and-potentiating-foxo3a-activity
#11
Kai Quan, Xin Zhang, Kun Fan, Peixi Liu, Qi Yue, Bo Li, Jinfeng Wu, Baojun Liu, Yang Xu, Wei Hua, Wei Zhu
Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor, and currently chemotherapeutic options for GBM are very limited. Given the poor prognosis, the development of novel anti-GBM agents is quite urgent. Using two human glioma cells (U87 and A172 cells), we demonstrated that Icariside II (ICA II), an active flavonoid compound derived from Epimedium koreanum, could inhibit GBM cell growth in a dose dependent manner. Wound healing data suggested that ICA II also inhibited the migration of human glioma cells...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28536643/icariin-prevents-h2o2-induced-apoptosis-via-the-pi3k-akt-pathway-in-rat-nucleus-pulposus-intervertebral-disc-cells
#12
Xiangyu Deng, Sheng Chen, Dong Zheng, Zengwu Shao, Hang Liang, Hongzhi Hu
Icariin is a prenylated flavonol glycoside derived from the Chinese herb Epimedium sagittatum. This study investigated the mechanism by which icariin prevents H2O2-induced apoptosis in rat nucleus pulposus (NP) cells. NP cells were isolated from the rat intervertebral disc and they were divided into five groups after 3 passages: (A) blank control; (B) 200 μM H2O2; (C) 200 μM H2O2 + 20 μM icariin; (D) 20 μM icariin + 200 μM H2O2 + 25 μM LY294002; (E) 200 μM H2O2 + 25 μM LY294002. LY294002 is a selective inhibitor of the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28529129/estrogen-receptor-%C3%AE-36-is-involved-in-icaritin-induced-growth-inhibition-of-triple-negative-breast-cancer-cells
#13
Xue Wang, Nan Zheng, Jing Dong, Xuming Wang, Lijiang Liu, Jian Huang
A sub-class of ER-negative breast cancer that is negative for ER, PR and HER2 expression known as triple-negative breast cancer (TNBC) is highly malignant and lacks effective treatment. Recently, it has been reported that an isoform of estrogen receptor-alpha ER-α36 is expressed and plays a critical role in development of TNBC. ER-α36 forms a positive regulatory loop with epidermal growth factor receptor (EGFR), which promotes malignant growth of TNBC cells. Thus, ER-α36 has been proposed as an important target for development of novel drugs for TNBC...
July 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28494419/neuroprotective-effects-of-total-flavonoid-fraction-of-the-epimedium-koreanum-nakai-extract-on-dopaminergic-neurons-in-vivo-and-in-vitro
#14
Lin Wu, Zhong-Rui Du, Ai-Li Xu, Zhen Yan, Hui-Hui Xiao, Man-Sau Wong, Xin-Sheng Yao, Wen-Fang Chen
Flavonoids, the active components of Epimedii Genus, have been demonstrated to protect against osteoporosis, cardiovascular diseases and rheumatoid arthritis. The present study aimed to investigate the neuroprotective effects of total flavonoid (TF) fraction of Epimedium koreanum Nakai on dopaminergic neurons in the cellular and mice models of Parkinson's disease (PD). TF pretreatment could ameliorate the decrease of striatal dopamine (DA) content and the loss of tyrosine hydroxylase (TH)-immunoreactive neurons in the substantia nigra pars compacta (SNpc) induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28454423/the-nutritional-herb-epimedium-grandiflorum-inhibits-the-growth-in-a-model-for-the-luminal-a-molecular-subtype-of-breast-cancer
#15
Nitin T Telang, Gou Li, Meena Katdare, Daniel W Sepkovic, H Leon Bradlow, George Y C Wong
The Luminal A subtype of breast cancer expresses the estrogen receptor (ER)-α and progesterone receptor (PR), but not the human epidermal growth factor receptor (HER)-2 oncogene. This subtype of breast cancer responds to endocrine therapy involving the use of selective estrogen receptor modulators and/or inhibitors of estrogen biosynthesis. However, these therapeutic agents are frequently associated with long-term systemic toxicity and acquired tumor resistance, emphasizing the need to identify non-toxic alternative treatments for chemo-endocrine therapy responsive breast cancer...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28414103/apoptosis-induction-of-poly-s-nitrosated-human-serum-albumin-in-resistant-solid-tumor-under-hypoxia-can-be-restored-by-phosphodiesterase-5-inhibition
#16
Mayumi Ikeda, Yu Ishima, Victor T G Chuang, Tsuyoshi Ikeda, Ryo Kinoshita, Hiroshi Watanabe, Tatsuhiro Ishida, Masaki Otagiri, Toru Maruyama
Poly-S-nitrosated human serum albumin (Poly-SNO-HSA) delivered and accumulated nitric oxide (NO) in tumors and induces apoptosis. Tumor hypoxia is strongly associated with malignant progression and tumor resistance to therapy. In this study, we examined the cytotoxic effect of Poly-SNO-HSA under hypoxia on the murine colon 26 adenocarcinoma (C26) cells in vitro and in vivo. Under hypoxia, at about 4 times LD50 dose of Poly-SNO-HSA in vitro, the reactive oxygen species production was hindered but apoptotic cells were induced via cGMP pathway as the effect was suppressed by a soluble guanylate cyclase inhibitor, NS2028...
April 13, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28382688/epimedii-herba-a-promising-herbal-medicine-for-neuroplasticity
#17
REVIEW
Jae-Heung Cho, Jae-Young Jung, Beom-Joon Lee, Kyungjin Lee, Jae-Woo Park, Youngmin Bu
Epimedii Herba (EH) is an herbal medicine originating from several plants of the genus Epimedium. It is a major therapeutic option for kidney yang deficiency syndrome, which is closely related to androgen hormones and also has been used to treat hemiplegia following a stroke in traditional medicine of Korea and PR China. To date, many clinical and basic researches of EH have shown the activities on functional recovery from brain diseases. Recently, neuroplasticity, which is the spontaneous reaction of the brain in response to diseases, has been shown to accelerate functional recovery...
June 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28370226/total-flavonoids-of-epimedium-reduce-ageing-related-oxidative-dna-damage-in-testis-of-rats-via-p53-dependent-pathway
#18
H Zhao, L Song, W Huang, J Liu, D Yuan, Y Wang, C Zhang
Increased DNA damage in testis is considered as a major factor for ageing-related dysfunction. Total flavonoids of Epimedium (TFE), the main active compositions of Epimedium, have been used to treat sexual dysfunction and delay ageing. However, whether TFE could improve ageing-related testicular dysfunction remains unknown. Therefore, we investigated the protection effects of TFE and its mechanisms of action in a naturally ageing rat model. Eighteen-month-old SD rats were randomised to receive either vehicle or TFE (10 and 20 mg/kg)...
March 30, 2017: Andrologia
https://www.readbyqxmd.com/read/28361161/steroids-in-traditional-chinese-medicine-what-is-the-evidence
#19
REVIEW
Foon Yin Fung, Yeh Ching Linn
Local healthcare providers often question the possible steroidal activity of traditional Chinese medicine (TCM) herbs or herbal products and implicate them as a cause for adrenal insufficiency or Cushing's syndrome in patients with a history of TCM intake. We conducted a comprehensive database search for evidence of potential glucocorticoid, mineralocorticoid, androgenic or oestrogenic activity of herbs or herbal products. Overall, there are not many herbs whose steroidal activity is well established; among these, most cases were based on preclinical studies...
March 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28278623/anti-inflammatory-neolignans-from-epimedium-pseudowushanese
#20
Huihui Ti, Ping Wu, Liangxiong Xu, Xiaoyi Wei
One new 8-O-4' neolignan has been isolated from Epimedium pseudowushanese B. L. Guo, together with nine other known neolignans. The structures of these neolignans were elucidated using spectroscopic and chemical techniques, and their anti-inflammatory activities were also evaluated. The results of these experiments revealed that compound 6 was the most potent of the 10 different compounds tested in the current study, with a maximal inhibitory ratio of 79% for its in vitro anti-inflammatory activity towards lipopolysaccharide-induced tumour necrosis factor alpha secretion in RAW264...
March 2, 2017: Natural Product Research
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