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https://www.readbyqxmd.com/read/28539725/inhibition-of-cytochrome-p450-cyp3a4-activity-by-extracts-from-57-plants-used-in-traditional-chinese-medicine-tcm
#1
Mohamed L Ashour, Fadia S Youssef, Haidy A Gad, Michael Wink
BACKGROUND: Herbal medicine is widely used all over the world for treating various health disorders. It is employed either alone or in combination with synthetic drugs or plants to be more effective. OBJECTIVE: The assessment of the effect of both water and methanol extracts of 57 widely used plants from Traditional Chinese Medicine (TCM) against the main phase I metabolizing enzyme CYP3A4 in vitro for the first time. MATERIALS AND METHODS: The inhibition of cytochrome P450 activity was evaluated using a luminescence assay...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28539711/flavonoids-isolated-from-the-flowers-of-limonium-bicolor-and-their-in-vitro-antitumor-evaluation
#2
Jian Chen, Jiehui Teng, Li Ma, Haiying Tong, Bingru Ren, Linshan Wang, Weilin Li
BACKGROUND: Limonium bicolor, a halophytic species, can grow in saline or saline-alkali soil, is well known as a traditional Chinese medicine. Recently it attracted much attention for its treatment for cancer. OBJECTIVE: The present study was performed to evaluate this species from the phytochemical standpoint and the possible relationship between the antitumor activity and its natural products. MATERIALS AND METHODS: The chemical constituents from the flowers of L...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28531921/hesperetin-post-treatment-prevents-rat-cardiomyocytes-from-hypoxia-reoxygenation-injury-in-vitro-via-activating-pi3k-akt-signaling-pathway
#3
Shangfei He, Xianbao Wang, Yongkang Zhong, Lu Tang, Ya Zhang, Yuanna Ling, Zhipeng Tan, Pingzhen Yang, Aihua Chen
Hesperidin (HES), a citrus fruit extract, has beneficial effects on various ischemia/reperfusion (I/R) models. Here, we investigated the possible positive effect of hesperetin (HPT), an active metabolite of HES, and identified the potential molecular mechanisms involved in cardiomyocytes H/R-induced injury. To construct the cardiomyocyte model of hypoxia/reoxygenation (H/R) injury, cultured neonatal rat cardiomyocytes were subjected to 3h of hypoxia followed by 3h of reoxygenation. Cell viability and apoptosis were detected...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28530609/phenolic-compounds-of-the-australian-native-herb-prostanthera-rotundifolia-and-their-biological-activities
#4
Kitty S C Tang, Izabela Konczak, Jian Zhao
The chemical identity and bioactivities of phenolic components of the Australian native herb Prostanthera rotundifolia were studied. Phenolic compounds were extracted with 80% (v/v) aqueous methanol and purified by liquid chromatography. The antioxidant capacity of the extract and its inhibiting activity against α-glucosidase, pancreatic lipase and hyaluronidase were determined. Phenolic compounds were identified by a combination of HPLC-PDA, LC-high resolution MS (LC-HRMS), LC-tandem MS (LC-MS/MS) and nuclear magnetic resonance (NMR) spectroscopy...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28514385/-the-effects-of-diosmin-and-hesperidin-on-capillary-blood-flow-of-upper-limbs-in-patients-with-secondary-raynaud-s-syndrome
#5
A M Zudin, A G Gritsenko, I T Hadzhishvili
The article discusses the effects of diosmin and hesperidin on capillary blood flow in patients with secondary Raynaud's syndrome (RS). Raynaud's syndrome a difficult problem of modern angiology, since in its development there is a large range of disorders of the capillary blood flow of the limbs. Currently, the main way of therapy in patients with secondary Raynaud's syndrome is the use of either calcium channel blockers (if angiospastic stage of the disease), or prostaglandins of group E1 (with tropho-paralytic stage of secondary RS)...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28507483/effects-of-hesperidin-on-formaldehyde-induced-toxicity-in-pregnant-rats
#6
Sameha Merzoug, Mohamed Lamine Toumi
This experimental study aimed to investigate the protective effect of a bioflavonoid, hesperidin (HP), on formaldehyde (FA)-related pathophysiological and behavioral outcomes in pregnant rats and developmental aspects in their offspring. Female Wistar rats were subjected to perigestational exposure to FA (2 mg/kg/day per os) with a concomitant treatment with HP (50 mg/kg/day per os). Pregnant rats were weighed throughout gestation and tested in two behavioral paradigms (elevated plus-maze and open field) at gestational days (GD) 1, 10 and 19 to evaluate the anxiety-like behavior and locomotive alterations...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28499426/erratum-to-oral-intake-of-a-combination-of-glucosyl-hesperidin-and-caffeine-elicits-an-antiobesity-effect-in-healthy-moderately-obese-subjects-a-randomized-double-blind-placebo-controlled-trial
#7
Tatsuya Ohara, Koutarou Muroyama, Yoshihiro Yamamoto, Shinji Murosaki
No abstract text is available yet for this article.
May 12, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28498356/nine-different-chemical-species-and-action-mechanisms-of-pancreatic-lipase-ligands-screened-out-from-forsythia-suspensa-leaves-all-at-one-time
#8
Tinggui Chen, Yayun Li, Liwei Zhang
It is difficult to screen out as many active components as possible from natural plants all at one time. In this study, subfractions of Forsythia suspensa leaves were firstly prepared; then, their inhibitive abilities on pancreatic lipase were tested; finally, the highest inhibiting subfraction was screened by self-made immobilized pancreatic lipase. Results showed that nine ligands, including eight inhibitors and one promotor, were screened out all at one time. They were three flavonoids (rutin, IC50: 149 ± 6...
May 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28486828/ruta-chalepensis-l-rutaceae-leaf-extract-chemical-composition-antioxidant-and-hypoglicaemic-activities
#9
M R Loizzo, T Falco, M Bonesi, V Sicari, R Tundis, M Bruno
Ruta chalepensis L. (Rutaceae) leaf extract was investigated for its chemical profile and antioxidant and hypoglycaemic properties. The antioxidant effects were investigated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), β-carotene bleaching, and metal chelating activity assays. The carbohydrate-hydrolysing enzymes inhibition assay was used to test the hypoglycaemic potential. R. chalepensis showed a high content of hesperidin and rutin with values of 591.9 and 266.7 mg/g dry extract, respectively. The extract exhibited a promising protection of lipid peroxidation (IC50 value of 16...
May 10, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28481054/total-detection-of-tianma-toutong-tablets-for-quality-consistency-by-a-five-wavelength-fusion-fingerprint-and-chemometrics
#10
Zhe Yang, Guo-Xiang Sun
A fingerprint method was developed and combined with chemometrics for the quality evaluation of Tianma Toutong tablets, which are herbal medicine tablets used to treat migraine. Samples were analyzed by high-performance liquid chromatography, where five single-wavelength profiles (203, 232, 254, 280 and 310 nm) were fused to generate a five-wavelength fusion fingerprint and were also used for the quantitative analysis of seven chemical markers (gastrodin, caffeic acid, hesperidin, isoimperatorin, chlorogenic acid, ferulic acid and imperatorin)...
May 8, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28462109/simultaneous-determination-of-nine-bioactive-compounds-in-yijin-tang-via-high-performance-liquid-chromatography-and-liquid-chromatography-electrospray-ionization-mass-spectrometry
#11
Hye Jin Yang, Nam-Hui Yim, Kwang Jin Lee, Min Jung Gu, Bohyoung Lee, Youn-Hwan Hwang, Jin Yeul Ma
BACKGROUND: Yijin-tang (YJ) has been used traditionally for the treatment of cardiovascular conditions, nausea, vomiting, gastroduodenal ulcers, and chronic gastritis. In this study, a simple and sensitive high-performance liquid chromatography (HPLC) method was developed for the quantitation of nine bioactive compounds in YJ: homogentisic acid, liquiritin, naringin, hesperidin, neohesperidin, liquiritigenin, glycyrrhizin, 6-gingerol, and pachymic acid. METHODS: Chromatographic separation of the analytes was achieved on an RS Tech C18 column (4...
June 2016: Integr Med Res
https://www.readbyqxmd.com/read/28460230/peripheral-blood-mononuclear-cells-from-rat-model-of-pleurisy-the-effects-of-hesperidin-on-ectoenzymes-activity-apoptosis-cell-cycle-and-reactive-oxygen-species-production
#12
Stephen Adeniyi Adefegha, Daniela Bitencourt Rosa Leal, Pedro Henrique Doleski, Pauline Christ Ledur, Assis Ecker
The present study investigates the effect of hesperidin; a flavonone commonly found in citrus fruits, on the ectoenzymes (ectonucleotidase and ecto-adenosine deaminase) activity, cell viability, apoptosis, cell cycle arrest and reactive oxygen species production in peripheral blood mononuclear cells (PBMCs) from rat model of pleurisy. Wistar rats were pretreated with either saline or hesperidin (80mg/kg) by oral gavage for 21days and injected intrapleurally with 2% carrageenan or saline on the 22nd day. PBMCs were subsequently prepared after 4h of carrageenan induction...
April 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28416860/characterization-of-phenolic-profile-and-antioxidant-capacity-of-different-fruit-part-from-lemon-citrus-limon-burm-cultivars
#13
Wanpeng Xi, Juanfang Lu, Junping Qun, Bining Jiao
Phenolic composition and antioxidant capacity of different fruit part including peel, pulp, juice, whole fruit and seed from five lemon cultivars (Feiminailao, Cuningmeng Limeng, Pangdelusaningmeng, Beijingningmeng) were investigated. Caffeic acid (9.31-741.4 μg/g FW) and chlorogenic acid (2.7-527.5 μg/g FW) were the dominant phenolic acid in fruit tested, Pangdelusaningmeng (PD) and Limeng peels with the highest contents, respectively. Hesperidin was the predominant flavanone (10.27-3315 μg/g FW), Cuningmeng (CN) peels with the highest level...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28407962/evaluation-of-bioactive-flavonoids-and-antioxidant-activity-in-pericarpium-citri-reticulatae-citrus-reticulata-chachi-during-storage
#14
Manqin Fu, Yujuan Xu, Yulong Chen, Jijun Wu, Yuanshan Yu, Bo Zou, Kejing An, Gengsheng Xiao
A simple and accurate method using high performance liquid chromatography (HPLC) with dual wavelength detection was developed to simultaneously determine the contents of one flavanone glycoside (hesperidin) and five polymethoxylated flavones (PMFs: sinensetin, 4',5,7,8-tetramethoxyflavone, nobiletin, tangeretin and 5-O-desmethyl nobiletin) in Pericarpium Citri Reticulatae (Citrus reticulata 'Chachi') ('Chachi' PCR). By modifying the mobile phase compositions and detection wavelengths, an optimal HPLC condition was obtained, under which the calibration curves of all six compounds exhibited good linearity (R(2)>0...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28405105/hesperidin-as-radioprotector-against-radiation-induced-lung-damage-in-rat-a-histopathological-study
#15
Gholam Hassan Haddadi, Abolhasan Rezaeyan, Mohammad Amin Mosleh-Shirazi, Massood Hosseinzadeh, Reza Fardid, Masoud Najafi, Ashkan Salajegheh
Reactive oxygen species (ROS) are generated by ionizing radiation, and one of the organs commonly affected by ROS is the lung. Radiation-induced lung injury including pneumonia and lung fibrosis is a dose-limiting factor in radiotherapy (RT) of patients with thorax irradiation. Administration of antioxidants has been proved to protect against ROS. The present study was aimed to assess the protective effect of hesperidin (HES) against radiation-induced lung injury of male rats. Fifty rats were divided into three groups...
January 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/28395272/the-effect-of-hesperidin-and-quercetin-on-oxidative-stress-nf-%C3%AE%C2%BAb-and-sirt1-levels-in-a-stz-induced-experimental-diabetes-model
#16
Hatice Iskender, Eda Dokumacioglu, Tugba Mazlum Sen, Imran Ince, Yalcin Kanbay, Sinan Saral
OBJECTIVE: The aim of this study is to investigate the roles of SIRT1 and NF-κB in the pathogenesis of diabetes mellitus in rats with STZ-induced diabetes and determine the effects of hesperidin and quercetin on oxidative stress and on the levels of SIRT1 and NF-κB. MATERIALS AND METHODS: The experimental animals were divided into four groups, each group comprising ten rats designated as follows: group 1 served as control rats (C); group 2 served as diabetic rats (DM); group 3 served as diabetic rats administered hesperidin (DM+HSP) (100mg/kg b...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28390858/combining-in%C3%A2-vitro-in%C3%A2-vivo-and-in-silico-approaches-to-evaluate-nutraceutical-potentials-and-chemical-fingerprints-of-moltkia-aurea-and-moltkia-coerulea
#17
Gokhan Zengin, Ramazan Ceylan, Jelena Katanić, Adriano Mollica, Abdurrahman Aktumsek, Tatjana Boroja, Sanja Matić, Vladimir Mihailović, Snežana Stanić, Zaahira Aumeeruddy-Elalfi, Mustafa Abdullah Yilmaz, Mohamad Fawzi Mahomoodally
Methanolic extracts of Moltkia aurea Boiss. (MA) and Moltkia coerulea (Willd.) Lehm. (MC) were investigated for their antioxidant capacity and enzymatic inhibitory potential against acetylcholinesterase, butyrylcholinesterase, α-amylase, α-glucosidase, and tyrosinase in vitro. MA and MC were also explored for their antimicrobial effect, as well as for their possible genotoxic/antigenotoxic potential on Drosophila melanogaster in vivo. The total bioactive components (phenolic (TPC) and flavonoid contents (TFC)) were determined and liquid chromatography-tandem mass spectrometry (LC-MS/MS) metabolite profiling of MA and MC appraised...
April 5, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28385612/inhibition-of-liver-alanine-aminotransferase-and-aspartate-aminotransferase-by-hesperidin-and-its-aglycone-hesperetin-an-in-vitro-and-in-silico-study
#18
Sara Zareei, Massoud M A Boojar, Massoud Amanlou
AIMS: This study aimed to investigate the inhibitory effects of two natural flavonoids, hesperetin (HT) and hesperidin (HD), on two gluconeogenesis enzymes, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities and their possible mechanisms of action. MAIN METHODS: Rat liver incubated with different concentrations of HT and HD was used to measure enzyme activities spectrophotometrically, based on monitoring the oxidation of NADH to NAD(+) at 340nm...
June 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28366850/antioxidant-and-ion-induced-gelation-functions-of-pectins-enabled-by-polyphenol-conjugation
#19
Soohwan Ahn, Kantappa Halake, Jonghwi Lee
The development of antioxidant polymers through the chemical conjugation of natural polyphenols onto polysaccharides has important applications in biomedical, pharmaceutical, food, and cosmetic fields. Due to their labile characteristics, the covalent conjugation of polyphenols while retaining antioxidant properties has been a challenging task. Herein, four structurally different polyphenols, three with and one without a catechol group, were conjugated onto pectin macromolecules via a simple and efficient preparation method involving epichlorohydrin chemistry...
March 31, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28365326/inhibitory-effects-of-flavonoids-on-biofilm-formation-by-staphylococcus-aureus-that-overexpresses-efflux-protein-genes
#20
Laênia Angélica Andrade Lopes, Jéssica Bezerra Dos Santos Rodrigues, Marciane Magnani, Evandro Leite de Souza, José P de Siqueira-Júnior
This study evaluated the efficacy of glycone (myricitrin, hesperidin and phloridzin) and aglycone flavonoids (myricetin, hesperetin and phloretin) in inhibiting biofilm formation by Staphylococcus aureus RN4220 and S. aureus SA1199B that overexpress the msrA and norA efflux protein genes, respectively. The minimum inhibitory concentration (MIC) and minimum biofilm inhibitory concentration (MBIC50 - defined as the lowest concentration that resulted in ≥50% inhibition of biofilm formation) of flavonoids were determined using microdilution in broth procedures...
March 29, 2017: Microbial Pathogenesis
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