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https://www.readbyqxmd.com/read/28213090/glycyrrhetinic-acid-attenuates-lipopolysaccharide-induced-fulminant-hepatic-failure-in-d-galactosamine-sensitized-mice-by-up-regulating-expression-of-interleukin-1-receptor-associated-kinase-m
#1
Xinru Yin, Gong Xia, Li Zhang, Rong Jiang, Ge Kuang, Bin Wang, Xinyu Chen, Jingyuan Wan
Glycyrrhetinic acid (GA), the main active ingredient of licorice, reportedly has anti-inflammatory and hepatoprotective properties, but its molecular mechanisms remain be elusive. In the present study, Balb/c mice were pretreated with GA (10, 30, or 100mg/kg) 1h before lipopolysaccharide (LPS)/d-galactosamine (D-GalN) administration. In other in vitro experiment, RAW264.7 macrophages were pretreated with GA before LPS exposure. The mortality, hepatic tissue histology, serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were analyzed...
February 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28192986/biosynthesis-based-quantitative-analysis-of-151-secondary-metabolites-of-licorice-to-differentiate-medicinal-glycyrrhiza-species-and-their-hybrids
#2
Wei Song, Xue Qiao, Kuan Chen, Ying Wang, Shuai Ji, Jin Feng, Kai Li, Yan Lin, Min Ye
Secondary metabolites are usually the bioactive components of medicinal plants. The difference in the secondary metabolisms of closely related plant species and their hybrids has rarely been addressed. In this study, we conducted a holistic secondary metabolomics analysis of three medicinal Glycyrrhiza species (G. uralensis, G. glabra, and G. inflata), which are used as the popular herbal medicine licorice. The Glycyrrhiza species (genotype) for 95 batches of samples were identified by DNA barcodes of the internal transcribed spacer and trnV-ndhC regions, and the chemotypes were revealed by LC/UV- or LC/MS/MS-based quantitative analysis of 151 bioactive secondary metabolites, including 17 flavonoid glycosides, 24 saponins, and 110 free phenolic compounds...
February 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28175983/glycyrrhizin-inhibits-porcine-epidemic-diarrhea-virus-infection-and-attenuates-the-proinflammatory-responses-by-inhibition-of-high-mobility-group-box-1-protein
#3
Chang-Chao Huan, Hua-Xia Wang, Xiang-Xiang Sheng, Rui Wang, Xin Wang, Xiang Mao
Porcine epidemic diarrhea (PED), caused by porcine epidemic diarrhea virus (PEDV) infection, leads to significant economic losses in the swine industry worldwide. In our studies, we found that glycyrrhizin, the major component of licorice root extracts, could moderately inhibit PEDV infection in Vero cells, when analyzed by western blot, qRT-PCR and a plaque formation assay. We also revealed that glycyrrhizin inhibited the entry and replication of PEDV. In addition, we demonstrated that glycyrrhizin decreased the mRNA levels of proinflammatory cytokines...
February 7, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28158597/maternal-licorice-consumption-during-pregnancy-and-pubertal-cognitive-and-psychiatric-outcomes-in-children
#4
Katri Räikkönen, Silja Martikainen, Anu-Katriina Pesonen, Jari Lahti, Kati Heinonen, Riikka Pyhälä, Marius Lahti, Soile Tuovinen, Karoliina Wehkalampi, Sara Sammallahti, Liisa Kuula, Sture Andersson, Johan G Eriksson, Alfredo Ortega-Alonso, Rebecca M Reynolds, Timo E Strandberg, Jonathan R Seckl, Eero Kajantie
No abstract text is available yet for this article.
February 3, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28140583/glycybridins-a-k-bioactive-phenolic-compounds-from-glycyrrhiza-glabra
#5
Kai Li, Shuai Ji, Wei Song, Yi Kuang, Yan Lin, Shunan Tang, Zexu Cui, Xue Qiao, Siwang Yu, Min Ye
In an attempt to discover bioactive agents from the herbal medicine Glycyrrhiza glabra (widely known as licorice), 11 new phenolic compounds, glycybridins A-K (1-11), along with 47 known phenolics (12-58) were isolated. Their structures were elucidated on the basis of extensive NMR and MS analyses as well as experimental and computed ECD data. According to the clinical therapeutic effects of licorice, enzyme or cell-based bioactivity screenings of 1-58 were conducted. A number of compounds significantly activate Nrf2, inhibit tyrosinase or PTP1B, inhibit LPS-induced NO production and NF-κB transcription, and inhibit the proliferation of human cancer cells (HepG2, SW480, A549, MCF7)...
January 31, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28111219/antioxidative-and-anticancer-properties-of-licochalcone-a-from-licorice
#6
Xiangrong Chen, Zuojia Liu, Rizeng Meng, Ce Shi, Na Guo
ETHNOPHARMACOLOGICAL RELEVANCE: Licochalcone A (LCA) is a characteristic chalcone that is found in licorice, which is a traditional medicinal plant. In traditional medicine, LCA possesses many potential biological activities, including anti-parasitic, anti-inflammatory and antitumor activities. AIM OF THE STUDY: To determine the antioxidant activity of LCA and, on this basis, to investigate the role of its anticancer activity. MATERIALS AND METHODS: To validate the antioxidant activity of LCA, the proteins SOD, CAT and GPx1 were analyzed using western blotting and cellular antioxidant activity (CAA) assays...
January 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28108937/glycyrrhizin-ameliorates-experimental-colitis-through-attenuating-interleukin-17-producing-t-cell-responses-via-regulating-antigen-presenting-cells
#7
Xiangyu Chen, Dai Fang, Lingyun Li, Liyong Chen, Qirui Li, Feili Gong, Min Fang
Glycyrrhizin, a component of Chinese medicine licorice root, has the ability to inhibit the functions of high-mobility group box 1 (HMGB1). While glycyrrhizin is known to have anti-inflammatory activities, the underlying mechanisms by which glycyrrhizin inhibits inflammation during the development of trinitrobenzenesulfonic acid (TNBS)-induced experimental colitis are not well understood. This study systemically examined the regulatory effects of glycyrrhizin on inflammatory response in TNBS-induced murine colitis and explored the potential mechanisms involved in this process...
January 21, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28090048/hyponatremia-in-an-elderly-patient-due-to-isolated-hypoaldosteronism-occurring-after-licorice-withdrawal
#8
Yuji Hataya, Akifumi Oba, Takafumi Yamashita, Yasato Komatsu
Hyponatremia is one of the most common electrolyte disorders encountered in the elderly. We present the case of an 81-year-old man who developed hyponatremia due to isolated hypoaldosteronism occurring after licorice withdrawal. He had severe hypokalemia with hypertension and was diagnosed with pseudoaldosteronism. He had been taking a very small dose of licorice as a mouth refresher since his early adulthood. Five months after licorice withdrawal, he developed hypovolemic hyponatremia, which was resolved with administration of fludrocortisone acetate...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28087760/molecularly-imprinted-solid-phase-extraction-using-bismethacryloyl-%C3%AE-cyclodextrin-and-methacrylic-acid-as-double-functional-monomers-for-selective-analysis-of-glycyrrhizic-acid-in-aqueous-media
#9
Weili Tang, Wei Du, Pengqi Guo, Ningli Wu, Kangli Du, Changgen Xu, Zhimin Luo, Ruimiao Chang, Aiguo Zeng, Wanghui Jing, Chun Chang, Ji Li, Qiang Fu
In this work, a new molecularly imprinted solid phase extraction protocol was developed for the selective extraction and purification of glycyrrhizic acid from liquorice roots in aqueous media. The molecularly imprinted polymers (MIPs) for glycyrrhizic acid were prepared by using bismethacryloyl-β-cyclodextrin and methacrylic acid as double functional monomers and characterized by Fourier transform infrared spectroscopy, scanning electron microscope, thermo gravimetric analysis, nitrogen adsorption and elemental analysis...
February 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28055288/eveningness-as-a-risk-for-behavioral-problems-in-late-adolescence
#10
Ilona Merikanto, Anu-Katriina Pesonen, Liisa Kuula, Jari Lahti, Kati Heinonen, Eero Kajantie, Katri Räikkönen
Circadian preference toward eveningness has been associated with increased risk for mental health problems both in early adolescence and in adulthood. However, in late adolescence, when circadian rhythm naturally shifts to later, its significance for mental health is not clear. Accordingly, we studied how circadian rhythm estimated both by self-reported chronotype and by actigraph-defined midpoint of sleep was associated with self-reported psychiatric problems based on Youth Self Report (YSR). The study builds on a community cohort born in 1998, Helsinki, Finland...
2017: Chronobiology International
https://www.readbyqxmd.com/read/28045565/the-effect-of-licorice-protein-fractions-on-proliferation-and-apoptosis-of-gastrointestinal-cancer-cell-lines
#11
Soheila Khazraei-Moradian, Mazdak Ganjalikhani-Hakemi, Alireza Andalib, Reza Yazdani, Javad Arasteh, Gholam Ali Kardar
BACKGROUND: Several methods for the treatment of colon cancer have been introduced, but none of them are safe and effective. We planned to evaluate the inhibitory effect of protein extract of licorice root on HT-29 and CT26 cell lines proliferation and apoptosis. METHODS: Protein extract of licorice root was prepared in phosphate-buffered solution, and SDS-PAGE was used to isolate its fractions. HT-29, CT-26, and HEK293 cell lines were treated with various concentrations of the fractions and full extract of licorice...
January 3, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28031830/development-of-diffuse-alveolar-damage-after-initiation-of-nijutsuto
#12
Motoyasu Kato, Shinichi Sasaki, Hiroshi Izumi, Toshimasa Uekusa, Shigeru Tominaga, Kazuhisa Takahashi
Chinese traditional medicine, Nijutsuto, is used to treat patients with frozen shoulder and osteoarthritis. Herbal medicine is often linked to the development of interstitial lung disease. An 83-year-old Japanese man with osteoarthritis who was on Nijutsuto was admitted to our hospital with dyspnoea and severe cough after 2 weeks from initiation of Nijutsuto. A chest computed tomography scan on admission showed diffuse ground glass opacity with traction bronchiectasis. Thus, he was diagnosed with Nijutsuto-induced interstitial lung disease, and was treated with a high dose of methylprednisolone and cyclophosphamide...
November 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/28008473/cyp716a179-functions-as-a-triterpene-c-28-oxidase-in-tissue-cultured-stolons-of-glycyrrhiza-uralensis
#13
Keita Tamura, Hikaru Seki, Hideyuki Suzuki, Mareshige Kojoma, Kazuki Saito, Toshiya Muranaka
CYP716A179, a cytochrome P450 monooxygenase expressed predominantly in tissue-cultured stolons of licorice ( Glycyrrhiza uralensis ), functions as a triterpene C-28 oxidase in the biosynthesis of oleanolic acid and betulinic acid. Cytochrome P450 monooxygenases (P450s) play key roles in the structural diversification of plant triterpenoids. Among these, the CYP716A subfamily, which functions mainly as a triterpene C-28 oxidase, is common in plants. Licorice (Glycyrrhiza uralensis) produces bioactive triterpenoids, such as glycyrrhizin and soyasaponins, and relevant P450s (CYP88D6, CYP72A154, and CYP93E3) have been identified; however, no CYP716A subfamily P450 has been isolated...
March 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/27992218/characterization-of-the-key-aroma-compounds-in-heat-processed-licorice-succus-liquiritiae-by-means-of-molecular-sensory-science
#14
Juliane Wagner, Peter Schieberle, Michael Granvogl
Application of the sensomics concept elucidated the key odorants of heat-processed licorice (Succus Liquiritiae). Forty-nine aroma-active compounds with flavor dilution (FD) factors between 16 and 2048 were detected; 47 thereof were identified, 23 for the first time in heated licorice. 4-Hydroxy-2,5-dimethylfuran-3(2H)-one revealed the highest FD factor of 2048, followed by 3-hydroxy-4,5-dimethylfuran-2(5H)-one, 4-hydroxy-3-methoxybenzaldehyde, 3-hydroxy-2-methyl-4H-pyran-4-one, and 2-methoxyphenol (all 1024)...
December 19, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27979300/a-new-exploration-of-licorice-metabolome
#15
Giovanni Rizzato, Elisa Scalabrin, Marta Radaelli, Gabriele Capodaglio, Oreste Piccolo
The roots and rhizomes of licorice plants (genus Glycyrrhiza L.) are commercially employed, after processing, in confectionery production or as sweetening and flavouring agents in the food, tobacco and beer industries. G. glabra, G. inflata and G. uralensis are the most significant licorice species, often indistinctly used for different productions. Licorice properties are directly related to its chemical composition, which determines the commercial values and the quality of the derived products. In order to better understand the characteristics and properties of each species, a chemical characterization of three species of licorice (G...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27975643/microwave-assisted-simultaneous-extraction-of-liquiritigenin-and-glycyrrhizic-acid-from-licorice-glycyrrhizae-radix-et-rhizoma
#16
H K Lim, M E Baek, Y Jo, J H Kwon
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27957263/different-modalities-for-treatment-of-recurrent-aphthous-stomatitis-a-randomized-clinical-trial
#17
Sherine A Nasry, Hanaa M El Shenawy, Dina Mostafa, Nagwa M Ammar
BACKGROUND: The underlying etiology of recurrent aphthous stomatitis (RAS) is unclear and treatment aims to provide symptomatic and faster relief. This study compared the efficacy of diode laser, a herbal combination of Acacia nilotica and Licorice (A and L) and Amlexanox in the management of RAS. MATERIAL AND METHODS: Sixty patients with minor aphthae were selected and randomly divided into four groups of 15 each. Group I and II received adhesive preparations of a herbal mixture of A and L and a 2 mg Amlexanox paste respectively, group III received diode laser and the fourth group (control) used a placebo...
December 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27920817/pharmacological-characterization-of-liquiritigenin-a-chiral-flavonoid-in-licorice
#18
Samaa Alrushaid, Neal M Davies, Stephanie E Martinez, Casey L Sayre
Liquiritigenin is a chiral flavonoid present in plant based food, nutraceuticals, and traditional medicines. It is also an important ingredient present in licorice. The purpose of this study is to explore the pharmacological activity of racemic liquiritigenin utilizing several in vitro assays with relevant roles in colon cancer and diabetes. Where possible, the pure enantiomers were tested to identify the stereospecific contribution to the activity. In vitro antioxidant, anticancer, anti-inflammatory activities (cyclooxygenase inhibition), antidiabetic activities (alpha-amylase and alpha-glucosidase inhibition) as well as cytochrome P450 (CYP450) inhibitory activities were assessed...
October 2016: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27907868/purification-of-high-purity-glycyrrhizin-from-licorice-using-hydrophilic-interaction-solid-phase-extraction-coupled-with-preparative-reversed-phase-liquid-chromatography
#19
Wenyi Yu, Hongli Jin, Aijin Shen, Liang Deng, Jianlian Shi, Xingya Xue, Yadong Guo, Yanfang Liu, Xinmiao Liang
Glycyrrhizin (GA), a major bioactive compound in licorice, has been extensively used throughout the world as a medicine to treat chronic viral hepatitis and allergic dermatitis. In this study, a new method based on hydrophilic interaction solid phase extraction (HILIC-SPE) and preparative reversed-phase liquid chromatography (prep-RPLC) was developed to purify GA with high purity from the complex licorice extract. Via evaluation of retention behavior of GA and flavonoids in different commercially available columns, a hydrophilic column--Click XIon was finally chosen for the purification due to its excellent resolution toward GA and flavonoids under HILIC mode...
January 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27904813/glycyrrhetinic-acid-might-increase-the-nephrotoxicity-of-bakuchiol-by-inhibiting-cytochrome-p450-isoenzymes
#20
Aifang Li, Nana Ma, Zijing Zhao, Mei Yuan, Hua Li, Qi Wang
BACKGROUND: Licorice, a popular traditional Chinese medicine (TCM), is widely used to moderate the effects (detoxification) of other herbs in TCM and often combined with Fructus Psoraleae. However, the classical TCM book states that Fructus Psoraleae is incompatible with licorice; the mechanism underlying this incompatibility has not been identified. Glycyrrhetinic acid (GA), the active metabolite of licorice, may increase the toxicity of bakuchiol (BAK), the main chemical ingredient in Psoralea corylifolia, by inhibiting its detoxification enzymes CYP450s...
2016: PeerJ
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