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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
#1
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
#2
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
https://www.readbyqxmd.com/read/28685526/glycyrrhetinic-acid-suppressed-hmgb1-release-by-up-regulation-of-sirt6-in-nasal-inflammation
#3
D Chen, L M Bellussi, S Cocca, J Wang, G C Passali, X Hao, L Chen, D Passali
To extend our understanding of previous studies on the pathogenesis and mechanism of high mobility group box 1 (HMGB1) in chronic rhinosinusitis with nasal polyps (CRSwNP), here we show that Sirtuin 6 (Sirt6), one of the Sirtuin family members which are widely studied in aging, DNA repair, metabolism, inflammation and cancer, was expressed in normal nasal mucosa using immunohistochemical staining and Western blot assay. Sirt6 expression levels were decreased in CRSwNP tissue. Sirt6 expression levels were modulated by small interfering RNA transfection in human nasal epithelial cells (HNE)...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28675698/the-mtor-inhibition-in-concurrence-with-erk1-2-activation-is-involved-in-excessive-autophagy-induced-by-glycyrrhizin-in-hepatocellular-carcinoma
#4
Xuan Zhang, Hua Yang, Shuqiang Yue, Guangbin He, Shibin Qu, Zhuochao Zhang, Ben Ma, Rui Ding, Wei Peng, Hongtao Zhang, Zhaoxu Yang, Kefeng Dou, Kaishan Tao, Xiao Li
Autophagy is a life phenomenon in which autophagosomes remove damaged or aging organelles and long-lived circulating proteins to maintain the cell's stability. However, disorders of excessive autophagy are a response of cancer cells to a variety of anticancer treatments which lead to cancer cell death. The Akt/mammalian target of rapamycin (mTOR) and the extracellular signal-regulated kinase 1/2 (ERK1/2) pathways are both involved in nutrient-induced autophagic phenomenon and exhibit vital relevance to oncogenesis in various cancer cell types, including hepatocellular carcinoma (HCC)...
July 3, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28668488/glycyrrhetinic-acid-prevents-acetaminophen-induced-acute-liver-injury-via-the-inhibition-of-cyp2e1-expression-and-hmgb1-tlr4-signal-activation-in-mice
#5
Genling Yang, Li Zhang, Li Ma, Rong Jiang, Ge Kuang, Ke Li, Hongtao Tie, Bin Wang, Xinyu Chen, Tianjun Xie, Xia Gong, Jingyuan Wan
Acetaminophen (APAP) is a widely used antipyretic and analgesic drug, which is safe and effective at the therapeutic dose. Unfortunately, excessive dosage of APAP could cause severe liver injury due to lack of effective therapy. Successful therapeutic strategies are urgently requested in clinic. Glycyrrhetinic acid (GA), derived from a traditional medicine licorice, has been shown to exert anti-inflammatory and antioxidant actions. In this study, the effect and the underlying mechanism of GA on APAP-induced hepatotoxicity were explored...
June 29, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28661322/pretreatment-of-wastewater-from-licorice-processing-a-preliminary-evaluation
#6
Sreenivasan Ramaswami, Joachim Behrendt, Holger Gulyas, Ralf Otterpohl
  This study was performed as a preliminary investigation of anaerobic digestion and the activated sludge process as pretreatment options for highly loaded wastewater from licorice processing (approximately 8000 mg COD/L). Only 15% reduction of initial chemical oxygen demand (COD) was achieved by anaerobic digestion, whereas up to 80% reduction was attained with activated sludge process. Adsorption using powdered activated carbon (PAC) was studied for the removal of color and residual organics from the effluent of aerobic treatment...
November 1, 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28660884/the-association-between-consistent-licorice-ingestion-hypertension-and-hypokalaemia-a-systematic-review-and-meta-analysis
#7
R Penninkilampi, E M Eslick, G D Eslick
There have been numerous case reports of severe adverse events including deaths following chronic licorice ingestion. The aim of the present study was to evaluate the effect of chronic ingestion of licorice on blood pressure, plasma potassium, plasma renin activity and plasma aldosterone. A search of MEDLINE, PubMed, EMBASE, CENTRAL, DARE, CINAHL and Current Contents Connect was performed from inception through to 26 April 2017. Trials that included a treatment group ingesting a product containing at least 100 mg of glycyrrhizic acid daily were selected...
June 29, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28647874/alleviative-effect-of-licorice-on-copper-chloride-induced-oxidative-stress-in-the-brain-biochemical-histopathological-immunohistochemical-and-genotoxic-study
#8
Heba El-Sayed Mostafa, Eman Ahmad Alaa-Eldin, Dalia Abdallah El-Shafei, Nehal S Abouhashem
Although copper is an essential micronutrient involved in a variety of biological processes indispensable for sustaining life, it can be toxic when administered in excess. Licorice (Glycyrrhizaglabra) has been used in Chinese folk medicine for the treatment of various disorders. Licorice has the biological capabilities of detoxication, antioxidation, and antiinfection. Here, we test the hypothesis that licorice could ameliorate copper-induced neurotoxic and genotoxic effects in adult male albino rats. For this purpose, 48 adult male albino rats were randomized into five groups: group I (8 rats), untreated control; group II (16 rats), subdivided into; vehicle control IIa (8 rats) which received 1 mL saline twice weekly intraperitoneally for 8 weeks and vehicle control IIb (8 rats) received 0...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28635361/role-of-licochalcone-a-in-vegf-induced-proliferation-of-human-airway-smooth-muscle-cells-implications-for-asthma
#9
Sung-Ho Kim, Qing-Mei Pei, Ping Jiang, Min Yang, Xue-Jiao Qian, Jiang-Bo Liu
Asthma is a chronic respiratory disease characterized by reversible airway obstruction with persistent airway inflammation and airway remodeling, which is associated with increased airway smooth muscle (ASM) mass. Licochalcone A is the predominant characteristic chalcone in licorice root. We found that licochalcone A inhibited vascular endothelial growth factor (VEGF)-induced ASM cell proliferation and induced cell cycle arrest. Additionally, VEGF-induced ASM cell proliferation was suppressed via inhibition of extracellular signal-regulated kinase 1/2 (ERK1/2) activity, but not that of Akt...
February 2017: Growth Factors
https://www.readbyqxmd.com/read/28629539/uplc-esi-qtof-ms-based-metabolomics-survey-on-the-toxicity-of-triptolide-and-detoxication-of-licorice
#10
Zhuo Wang, Jian-Qun Liu, Jin-Di Xu, He Zhu, Ming Kong, Guo-Hua Zhang, Su-Min Duan, Xiu-Yang Li, Guang-Fu Li, Li-Fang Liu, Song-Lin Li
Triptolide (TP) from Tripterygium wilfordii has been demonstrated to possess anti-inflammatory, immunosuppressive, and anticancer activities. TP is specially used for the treatment of awkward rheumatoid arthritis, but its clinical application is confined by intense side effects. It is reported that licorice can obviously reduce the toxicity of TP, but the detailed mechanisms involved have not been comprehensively investigated. The current study aimed to explore metabolomics characteristics of the toxic reaction induced by TP and the intervention effect of licorice water extraction (LWE) against such toxicity...
June 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28626475/stereospecific-pharmacokinetic-characterization-of-liquiritigenin-in-the-rat
#11
Samaa Alrushaid, Neal M Davies, Stephanie E Martinez, Casey L Sayre
Liquiritigenin is a chiral flavonoid present in licorice and other medicinal plants. The nature of its biological fate with respect to the individual enantiomers has not been examined. In this study, we characterize, for the first time, the stereoselective pharmacokinetics of liquiritigenin. Liquiritigenin was intravenously (20 mg/kg) and orally (50 mg/kg) administered to male Sprague-Dawley rats (n = 4 per route of administration). Concentrations in serum and urine were characterized via stereospecific reversed-phase, isocratic HPLC method with UV detection...
June 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28624548/glucocorticoids-and-gut-bacteria-the-galf-hypothesis-in-the-metagenomic-era
#12
REVIEW
David J Morris, Jason M Ridlon
A new concept is emerging in biomedical sciences: the gut microbiota is a virtual 'organ' with endocrine function. Here, we explore the literature pertaining to the role of gut microbial metabolism of endogenous adrenocorticosteroids as a contributing factor in the etiology of essential hypertension. A body of literature demonstrates that bacterial products of glucocorticoid metabolism are absorbed into the portal circulation, and pass through the kidney before excretion into urine. Apparent Mineralocorticoid Excess (AME) syndrome patients were found to have congenital mutations resulting in non-functional renal 11β-hydroxysteroid dehydrogenase-2 (11β-HSD2) and severe hypertension often lethal in childhood...
June 14, 2017: Steroids
https://www.readbyqxmd.com/read/28617146/diospyros-rhodocalyx-tako-na-a-thai-folk-medicine-associated-with-hypokalemia-and-generalized-muscle-weakness-a-case-series
#13
Rittirak Othong, Satariya Trakulsrichai, Winai Wananukul
INTRODUCTION: Diospyros rhodocalyx (Tako-Na) is a Thai folk medicine purported to promote longevity, treat impotence, etc. We present patients with hypokalemia, weakness and hypertension after consuming Tako-Na tea. CASE SERIES: Case 1: A 61-year-old man was brought in nine hours after drinking 400-500 mL of Tako-Na tea. One handful of Tako-Na bark was boiled in water to make tea. He had vomiting and watery diarrhea six hours after drinking it. He took no medications and had no history of hypertension...
June 15, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28605826/inhibition-of-hazardous-compound-formation-in-muscle-foods-by-antioxidative-phytophenols
#14
REVIEW
Youling L Xiong
Individual and mixed herbal extracts, as well as plant spices, are widely used in the preparation of muscle foods to enhance the organoleptic attributes. Abundantly rich in phenolic compounds, many of the phytochemical extracts have been shown to possess strong radical-scavenging and metal ion-binding properties and hence exert antioxidant activity in meat products. Because of their antiradical nature, phenolic acids and flavonoids, such as tea catechins, caffeic acid, chlorogenic acid, and mixed polyphenols derived from rosemary, licorice, and other herbal materials, are capable of inhibiting the formation of harmful secondary products from oxidized lipids and proteins...
June 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28593138/licochalcone-a-specifically-induces-cell-death-in-glioma-stem-cells-via-mitochondrial-dysfunction
#15
Kenta Kuramoto, Shuhei Suzuki, Hirotsugu Sakaki, Hiroyuki Takeda, Tomomi Sanomachi, Shizuka Seino, Yoshitaka Narita, Takamasa Kayama, Chifumi Kitanaka, Masashi Okada
Glioblastoma multiforme is the most malignant primary intrinsic brain tumor. Glioma stem cells (GSCs) are associated with chemoradiotherapy resistance and the recurrence of glioblastomas after conventional therapy. The targeting of GSCs is potentially an effective treatment for the long-term survival of glioblastoma patients. Licochalcone A, a natural chalconoid from licorice root, exerts anticancer effects; however, its effect on GSCs remains unknown. We found that Licochalcone A induced massive caspase-dependent death in GSCs but not in differentiated GSCs nor normal somatic and neural stem cells...
June 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28572827/protective-effect-of-18%C3%AE-glycyrrhetinic-acid-against-triptolide-induced-hepatotoxicity-in-rats
#16
Guanghua Yang, Lan Wang, Xiuting Yu, Yanfeng Huang, Chang Qu, Zhenbiao Zhang, Dandan Luo, Ji Lin, Lian Zhou, Ziren Su, Xiaojun Zhang, Haiming Chen
Triptolide (TP) is the major active component of Tripterygium wilfordii Hook F (TWHF) and possesses multiple pharmacological effects. However, hepatotoxicity of TP which is one of the toxic properties slows its progression in clinical application. 18β-Glycyrrhetinic acid (GA) is the main bioactive ingredient of Licorice (Glycyrrhiza glabra L.), a herbal medicine famous for its detoxification. This study aims to investigate whether GA possesses protective effect against TP-induced hepatotoxicity in rats. TP interference markedly elevated serum levels of ALT, AST, and ALP, caused evident liver histopathological changes, and elevated hepatic TNF-α, IL-6, IL-1β, and IFN-γ as well as nuclear translocation of NF-κB...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28560439/isoliquiritigenin-inhibits-the-proliferation-of-human-renal-carcinoma-caki-cells-through-the-ros-mediated-regulation-of-the-jak2-stat3-pathway
#17
Do-Hee Kim, Ji Eun Park, In Gyeong Chae, Geumi Park, Sooyeun Lee, Kyung-Soo Chun
Isoliquiritigenin (ISL) is a flavonoid with chalcone structure that has been noted in licorice and shallot, which are generally used in traditional Chinese medicine. ISL has demonstrated various pharmacological effects including antioxidant, anti-inflammatory and antitumor activity. However, the molecular mechanisms underlying the anticancer effects of ISL remain poorly understood. The present study revealed that ISL significantly decreased viability and induced apoptosis in human renal carcinoma Caki cells...
May 30, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28552807/glycyrrhizin-inhibits-lps-induced-inflammatory-mediator-production-in-endometrial-epithelial-cells
#18
Xue-Rong Wang, Hong-Guang Hao, Lan Chu
Endometriosis is a continuous inflammation of uterine endometrium that usually affects women of reproductive age. Glycyrrhizin, a triterpene isolated from the roots and rhizomes of licorice (Glycyrrhiza glabra), has been known to have anti-inflammatory effect. The purpose of this study was to investigate the anti-inflammatory effect of glycyrrhizin on LPS-stimulated mouse endometrial epithelial cells (MEEC). The levels of TNF-α, IL-1β, and PGE2 were measured by ELISA. The expression of COX-2, iNOS, TLR4, and NF-ĸB were detected by western blot analysis...
May 25, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28539738/the-mealiness-and-quality-of-herbal-medicine-licorice-for-example
#19
Xueying Liu, Weilong Hou, Deqiang Dou
BACKGROUND: The morphological identification is an effective and simple quality evaluation method in Chinese drugs, and the traits of mealiness and color were widely used in the commercial market of Chinese drugs. OBJECTIVE: The objective of this study was to explore the correlation between mealiness of herbal drugs and its quality; licorice was selected as an example. MATERIALS AND METHODS: The mealiness of licorice was graded by its weight; meanwhile, the content of glycyrrhizic acid and liquiritin was determined by high-performance liquid chromatography-diode-array detection method; the content of polysaccharides, soluble sugars, pectin, total starch, amylose, and amylopectin was measured by colorimetric method; and the number and diameter of starch granule were observed by microscope...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28531979/synthesis-and-characterization-of-glycyrrhizic-acid-coated-iron-oxide-nanoparticles-for-hyperthermia-applications
#20
Mostafa Saeedi, Omid Vahidi, Shahin Bonakdar
In the present study, iron oxide magnetic nanoparticles (IONPs) were synthesized using the oxidative precipitation method for biomedical applications. Glycyrrhizic acid (GA) extracted from the roots of licorice plant was used as the coating agent for the synthesized nanoparticles (GAIONPs). The crystal phase, morphology and size were investigated by XRD, FE-SEM and TEM. The saturation magnetization (ms) value of the nanoparticles was measured by VSM indicating lowered ms of the GAIONPs with respect to that of the IONPs due to the presence of GA...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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