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https://www.readbyqxmd.com/read/28925145/-research-on-optimal-modeling-strategy-for-licorice-extraction-process-based-on-near-infrared-spectroscopy-technology
#1
Hai-Xia Wang, Tong-Chuan Suo, He-Shui Yu, Zheng Li
The manufacture of traditional Chinese medicine (TCM) products is always accompanied by processing complex raw materials and real-time monitoring of the manufacturing process. In this study, we investigated different modeling strategies for the extraction process of licorice. Near-infrared spectra associate with the extraction time was used to detemine the states of the extraction processes. Three modeling approaches, i.e., principal component analysis (PCA), partial least squares regression (PLSR) and parallel factor analysis-PLSR (PARAFAC-PLSR), were adopted for the prediction of the real-time status of the process...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28918484/drug-herb-interactions-in-the-elderly-patient-with-ibd-a-growing-concern
#2
REVIEW
Haider Rahman, Marina Kim, Galen Leung, Jesse A Green, Seymour Katz
Inflammatory bowel disease (IBD), which includes conditions such as Crohn's disease and ulcerative colitis, is becoming more prevalent with the elderly being the fastest growing group. Parallel to this, there is an increasing interest in the use of complementary and alternative medicine (CAM). Nearly half of patients with IBD have used CAM at one time. The elderly patients, however, are burdened by comorbid conditions, polypharmacy, and altered functional status. With increasing use of complementary and alternative medicine in our elderly patients with IBD, it is vital for the provider to provide counsel on drug-herb potential interactions...
September 16, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28899510/screening-of-hepatoprotective-compounds-from-licorice-against-carbon-tetrachloride-and-acetaminophen-induced-hepg2-cells-injury
#3
Yi Kuang, Yan Lin, Kai Li, Wei Song, Shuai Ji, Xue Qiao, Qingying Zhang, Min Ye
BACKGROUND: Licorice and its constituents, especially licorice flavonoids have been reported to possess significant hepatoprotective activities. However, previous studies mainly focus on the extract and major compounds, and few reports are available on other licorice compounds. PURPOSE: This work aims to evaluate the in vitro hepatoprotective activities of licorice compounds and screen active compounds, and to establish the structure-activity relationship. METHODS: A compound library consisting of 180 compounds from three medicinal licorice species, Glycyrrhiza uralensis, G...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28886526/glycyrrhizic-acid-a-promising-carrier-material-for-anticancer-therapy
#4
REVIEW
Xitong Su, Lei Wu, Mingming Hu, Wenxiang Dong, Meng Xu, Peng Zhang
Drug delivery systems have become an integral part of anticancer drugs today. Design of novel drug carriers may lead to significant enhancement in antineoplastic therapy. Glycyrrhizic acid (GL), which is the most important active ingredient extracted from the licorice root shows great potential as a carrier material in this field. Recent studies have indicated that the combination of GL and first-line drugs had better therapeutic effects on cancers. GL showed a series of anti-cancer-related pharmacological activities, such as broad-spectrum anti-cancer ability, resistance to the tissue toxicity caused by chemotherapy and radiation, drug absorption enhancing effects and anti-multidrug resistance (MDR) mechanisms, as a carrier material in drug delivery systems...
September 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28881290/glycyrrhizic-acid-increases-glucagon-like-peptide-1-secretion-via-tgr5-activation-in-type-1-like-diabetic-rats
#5
Lin-Yu Wang, Kai Chun Cheng, Yingxiao Li, Chiang-Shan Niu, Juei-Tang Cheng, Ho-Shan Niu
Glycyrrhizic acid (GA) is belonged to triterpenoid saponin that is contained in the root of licorice and is known to affect metabolic regulation. Recently, glucagon like peptide-1 (GLP-1) has widely been applied in diabetes therapeutics. However, the role of GLP-1 in GA-induced anti-diabetic effects is still unknown. Therefore, we are interested in understanding the association of GLP-1 with GA-induced effects. In type 1-like diabetic rats induced by streptozotocin (STZ-treated rats), GA increased the level of plasma GLP-1, which was blocked by triamterene at a dose sufficient to inhibit Takeda G-protein-coupled receptor 5 (TGR5)...
September 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28864191/focusing-and-non-focusing-modulation-strategies-for-the-improvement-of-on-line-two-dimensional-hydrophilic-interaction-chromatography%C3%A2-%C3%A3-%C3%A2-reversed-phase-profiling-of-complex-food-samples
#6
Lidia Montero, Elena Ibáñez, Mariateresa Russo, Luca Rastrelli, Alejandro Cifuentes, Miguel Herrero
Comprehensive two-dimensional liquid chromatography (LC × LC) is ever gaining interest in food analysis, as often, food-related samples are too complex to be analyzed through one-dimensional approaches. The use of hydrophilic interaction chromatography (HILIC) combined with reversed phase (RP) separations has already been demonstrated as a very orthogonal combination, which allows attaining increased resolving power. However, this coupling encompasses different analytical challenges, mainly related to the important solvent strength mismatch between the two dimensions, besides those common to every LC × LC method...
September 8, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28835349/nrf2-activators-from-glycyrrhiza-inflata-and-their-hepatoprotective-activities-against-ccl4-induced-liver-injury-in-mice
#7
Yan Lin, Yi Kuang, Kai Li, Shuang Wang, Shuai Ji, Kuan Chen, Wei Song, Xue Qiao, Min Ye
Glycyrrhiza inflata (licorice) has been used to treat liver diseases for a long history. However, the bioactive compounds are still not clear. In this work, 77 compounds, including 9 new ones, were isolated from the EtOAc extract of the roots and rhizomes of G. inflata. The Nrf2 activation activities of all compounds were screened using ARE-luciferase reporter assay on HepG2C8 cells. The results indicated a number of chalcones were potent Nrf2 activators, including 11 (licochalcone A, 4.07-fold), 12 (licochalcone B, 5...
August 15, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28833680/toxicological-effects-of-glycyrrhiza-glabra-licorice-a-review
#8
REVIEW
Somayeh Nazari, Maryam Rameshrad, Hossein Hosseinzadeh
Licorice (Glycyrrhiza glabra) has been considered as an herbal drug since ancient time. Nowadays, it is a well-known spice that possesses worth pharmacological effects. However, some relevant articles have revealed negative impacts of licorice in health. By considering the great wishes in using herbal medicine, it is important to show adverse effects of herbal medicine in health. At present, there are misunderstandings toward the safety of herbal medicines. Herein, we gathered scientific research projects on the toxicity effects of licorice and glycyrrhizin to highlight their safety...
August 18, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28828752/dibenzoylmethane-protects-against-ccl4-induced-acute-liver-injury-by-activating-nrf2-via-jnk-ampk-and-calcium-signaling
#9
Mingnan Cao, Huixia Wang, Limei Guo, Simin Yang, Chun Liu, Tin Oo Khor, Siwang Yu, Ah-Ng Kong
Oxidative stress is an important pathogenic factor in various hepatic diseases. Nuclear factor-erythroid 2-related factor-2 (Nrf2), which coordinates the expression of an array of antioxidant and detoxifying genes, has been proposed as a potential target for prevention and treatment of liver disease. Dibenzoylmethane (DBM) is a minor ingredient in licorice that activates Nrf2 and prevents various cancers and oxidative damage. In the present study, the mechanisms by which DBM activates Nrf2 signaling were delineated, and its protective effect against carbon tetrachloride (CCl4)-induced liver injury was examined...
August 21, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28822168/-import-and-export-of-licorice-and-its-products-in-china
#10
Shuai Ma, Nuo Wang, Guang Yang, Ling Que
Licorice is an important harmonic drug which has been widely used in traditional Chinese medicine since ancient times. However, with the increasing demand of industrial production, the licorice resources in our country have been reduced rapidly and we have to import licorice resources from Kazakhstan and Uzbekistan consequently. In order to find out the trade flow of licorice resources and evaluate the status of Chinese licorice in the world trade, the trade situation of licorice and its products from 2011 to 2015 May in Chinese customs was investigated and analyzed in this paper...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822143/-research-progress-of-rapid-detection-of-ochratoxin-a-and-its-application-prospect-in-traditional-chinese-medicine
#11
REVIEW
Shu-Rong Hu, Guang-Yao Ying, Yu-Li Hu, Shi-Hai Yang, Mei-Hua Yang
Ochratoxin A (OTA) is a toxic secondary metabolite mainly produced by Aspergillus and Penicillium species, with strong renal toxicity, teratogenic, carcinogenic, mutagenic effect. Studies have shown that OTA is not only widely contaminated in food and feed crops, but also has been widely contaminated in Chinese herbal medicines such as spices, licorice and so on. In view of OTA's universality and harmfulness, this paper summarizes the flow visualization test strip, microsphere, electrochemical sensor, surface enhanced Raman spectroscopy technology in OTA rapid detection, which provides reference for the research and application of high throughout detection instrument miniaturization in order to achieve OTA quick detection and simple operation...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28813533/18%C3%A3-glycyrrhetinic-acid-derivative-promotes-proliferation-migration-and-aquaporin-3-expression-in-human-dermal-fibroblasts
#12
Chi-Feng Hung, Chien-Yu Hsiao, Wen-Hao Hsieh, Hsin-Ju Li, Yi-Ju Tsai, Chun-Nan Lin, Hsun-Hsien Chang, Nan-Lin Wu
Licorice (Glycyrrhiza) species have been widely used as a traditional medicine and a natural sweetener in foods. The 18β-glycyrrhetinic acid (18β-GA) is a bioactive compound in licorice that exhibits potential anti-cancer, anti-inflammatory, and anti-microbial activities. Many synthesized derivatives of 18β-GA have been reported to be cytotoxic and suggested for the treatment of malignant diseases. In this study, we explored the possible pharmacological roles of an 18β-GA derivative in skin biology using primary human dermal fibroblasts and HaCaT keratinocytes as cell models...
2017: PloS One
https://www.readbyqxmd.com/read/28777723/a-robust-regression-framework-with-laplace-kernel-induced-loss
#13
Liming Yang, Zhuo Ren, Yidan Wang, Hongwei Dong
This letter proposes a robust regression framework with nonconvex loss function. Two regression formulations are presented based on the Laplace kernel-induced loss (LK-loss). Moreover, we illustrate that the LK-loss function is a nice approximation for the zero-norm. However, nonconvexity of the LK-loss makes it difficult to optimize. A continuous optimization method is developed to solve the proposed framework. The problems are formulated as DC (difference of convex functions) programming. The corresponding DC algorithms (DCAs) converge linearly...
August 4, 2017: Neural Computation
https://www.readbyqxmd.com/read/28774812/cytochrome-p450-inhibition-by-three-licorice-species-and-fourteen-licorice-constituents
#14
Guannan Li, Charlotte Simmler, Luying Chen, Dejan Nikolic, Shao-Nong Chen, Guido F Pauli, Richard B van Breemen
The potential of licorice dietary supplements to interact with drug metabolism was evaluated by testing extracts of three botanically identified licorice species (Glycyrrhiza glabra L., Glycyrrhiza uralensis Fish. ex DC. and Glycyrrhiza inflata Batalin) and 14 isolated licorice compounds for inhibition of 9 cytochrome P450 enzymes using a UHPLC-MS/MS cocktail assay. G. glabra showed moderate inhibitory effects against CYP2B6, CYP2C8, CYP2C9, and CYP2C19, and weak inhibition against CYP3A4 (testosterone). In contrast, G...
July 31, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28768154/binding-effect-of-fluorescence-labeled-glycyrrhetinic-acid-with-ga-receptors-in-hepatocellular-carcinoma-cells
#15
Yu-Qi Sun, Chun-Mei Dai, Yan Zheng, Shu-Dan Shi, Hai-Yang Hu, Da-Wei Chen
Glycyrrhetinic acid (GA) is a natural active component from licorice, which is broadly used in traditional Chinese medicine. Lots of glycyrrhetinic acid receptors (GA-R) are proved to locate on the surface of liver cells. Many reports about the hepatocellular carcinoma (HCC) treatment were dependent on GA modified carriers. However, the reality of GA-R in HCC cells was not clear. In this paper, 18β-glycyrrhetinic acid (18β-GA) was labeled with fluorescence (FITC) by chemical synthesis. Together with the binding effect of fluorescence labeled glycyrrhetinic acid (FITC-GA), the competitive action of 18β-GA with GA-R was investigated in HCC cells...
July 30, 2017: Life Sciences
https://www.readbyqxmd.com/read/28761824/the-effect-of-dried-glycyrrhiza-glabra-l-extract-on-obesity-management-with-regard-to-ppar-%C3%AE-2-pro12ala-gene-polymorphism-in-obese-subjects-following-an-energy-restricted-diet
#16
Nazli Namazi, Mohammad Alizadeh, Elham Mirtaheri, Safar Farajnia
Purpose: Obesity is a multi-factorial health problem which results from the interaction of environmental and genetic factors. The aim of the present study was to determine the effects of dried licorice extract with a calorie restricted diet on anthropometric indices and insulin resistance with nutrigenetic approach. Methods: For this pilot, double-blind, placebo-controlled randomized clinical trial, 72 eligible subjects were randomly allocated to Licorice or placebo group. They received a low-calorie diet either with a 1...
June 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28756519/anti-inflammatory-effects-of-licochalcone-a-on-il-1%C3%AE-stimulated-human-osteoarthritis-chondrocytes
#17
Tao Jia, Jiutao Qiao, Dehong Guan, Tianxin Chen
Licochalcone A (Lico A), a flavonoid found in licorice root (Glycyrrhiza glabra), has been reported to have anti-inflammatory activity. In this study, we evaluated the anti-inflammatory effects of Lico A on IL-1β-stimulated human osteoarthritis chondrocytes and investigated the possible mechanism. Results demonstrated that Lico A treatment significantly inhibited PGE2 and NO production induced by IL-1β. IL-1β-induced iNOS and COX-2 expression were also inhibited by Lico A. Lico A inhibited MMP1, MMP3, and MMP13 production in IL-1β-stimulated chondrocytes...
July 29, 2017: Inflammation
https://www.readbyqxmd.com/read/28754329/inhibition-of-udp-glucuronosyltransferase-ugt-mediated-glycyrrhetinic-acid-3-o-glucuronidation-by-polyphenols-and-triterpenoids
#18
Mayuko Koyama, Tatsuya Shirahata, Rika Hirashima, Yoshinori Kobayashi, Tomoo Itoh, Ryoichi Fujiwara
Glycyrrhetinic acid (GA) is an active metabolite of glycyrrhizin, which is a main constituent in licorice (Glycyrrhiza glabra). While GA exhibits a wide variety of pharmacological activities in the body, it is converted to a toxic metabolite GA 3-O-glucuronide by hepatic UDP-glucuronosyltransferases (UGTs). To avoid the development of the toxic metabolite-induced pseudohyperaldosteronism (pseudoaldosteronism), there is a limitation in maximum daily dosage of licorice and in combined usage of other glycyrrhizin-containing natural medicine...
May 4, 2017: Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28707183/downregulation-of-inos-and-elevation-of-camp-mediate-the-anti-inflammatory-effect-of-glabridin-in-rats-with-ulcerative-colitis
#19
Nahla E El-Ashmawy, Naglaa F Khedr, Hoda A El-Bahrawy, Samar A El-Adawy
BACKGROUND: Alternative medicine is widely accepted by public and becoming an attractive approach for treatment of various diseases. Glabridin (Gla), a major flavonoid present in licorice root, was reported to have antioxidant and anti-inflammatory properties. OBJECTIVE: The study aimed to investigate the possible protective role of Gla against dextran sulphate sodium (DSS)-induced ulcerative colitis (UC) in rats and to clarify the molecular mechanisms underlying Gla function...
July 13, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28704925/licochalcone-a-prevents-platelet-activation-and-thrombus-formation-through-the-inhibition-of-plc%C3%AE-2-pkc-akt-and-mapk-pathways
#20
Li-Ming Lien, Kuan-Hung Lin, Li-Ting Huang, Mei-Fang Tseng, Hou-Chang Chiu, Ray-Jade Chen, Wan-Jung Lu
Platelet activation is involved in cardiovascular diseases, such as atherosclerosis and ischemic stroke. Licochalcone A (LA), an active ingredient of licorice, exhibits multiple biological activities such as anti-oxidation and anti-inflammation. However, its role in platelet activation remains unclear. Therefore, the study investigated the antiplatelet mechanism of LA. Our data revealed that LA (2-10 μM) concentration dependently inhibited platelet aggregation induced by collagen, but not thrombin and U46619...
July 12, 2017: International Journal of Molecular Sciences
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