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https://www.readbyqxmd.com/read/28728492/the-bioactivity-of-hedysarum-coronarium-extracts-on-skin-enzymes-and-cells-correlates-with-phenolic-content
#1
Bruno Burlando, Giulia Pastorino, Annalisa Salis, Gianluca Damonte, Marco Clericuzio, Laura Cornara
CONTEXT: The search for bioactive compounds from botanical sources is attracting much interest. However, differences in chemical composition may occur within the same species depending on different geographical origins. OBJECTIVES: We evaluated the properties on skin enzymes and cells of extracts from sulla legume crop Hedysarum coronarium L. (Fabaceae), collected at two Italian sites near Pisa and Ventimiglia, for possible dermatological and cosmetic applications...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28718703/nanoliposome-improves-inhibitory-effects-of-naringenin-on-nonalcoholic-fatty-liver-disease-in-mice
#2
Cong Chen, Xu Jie, Yangjie Ou, Yini Cao, Lu Xu, Yunxia Wang, Rong Qi
AIM: To prepare naringenin nanoliposome (NRG-Nanolipo) and investigate its inhibitory effects on nonalcoholic fatty liver disease (NAFLD). MATERIALS & METHODS: NRG-Nanolipo was prepared by thin-film rehydration method. Its characterizations and effects on NAFLD in mice induced by methionine choline deficient diet were investigated. RESULTS: NRG-Nanolipo had high-drug loading percentage and showed a sustained release profile. The nanoliposome formulation significantly increased oral absorption of naringenin (NRG)...
July 18, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28711784/urinary-metabolite-profiling-of-flavonoids-in-chinese-volunteers-after-consumption-of-orange-juice-by-uflc-q-tof-ms-ms
#3
Xuan Zeng, Weiwei Su, Yang Bai, Taobin Chen, Zenghao Yan, Jiawei Wang, Minmin Su, Yuying Zheng, Wei Peng, Hongliang Yao
The metabolism of flavonoids derived from orange juice in Chinese volunteers has not been well investigated. With the ultra-fast liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry (UFLC-Q-TOF-MS/MS) system, orange juice-derived flavonoids, as well as metabolites contained in urine collected from healthy Chinese volunteers after consumption of 250mL orange juice, were systematically identified and quantified. Finally, a total of 9 flavonoids and 30 metabolites were detected. Obtained results revealed that flavonoids derived from orange juice underwent extensive phase II metabolism in human, mainly comprising glucuronidation and sulfation...
July 10, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28707470/enhancement-of-naringenin-biosynthesis-from-tyrosine-by-metabolic-engineering-of-saccharomyces-cerevisiae
#4
Xiaomei Lyu, Kuan Rei Ng, Jie Lin Lee, Rita Mark, Wei Ning Chen
Flavonoids are a class of plant polyphenols that possess a variety of essential health properties. In this work, the capacity of microbial naringenin synthesis from tyrosine in S. cerevisiae was explored and optimized through metabolic engineering on precursor supply and promoter control within three modules. Specifically, in Module 1, a modified GAL system was employed for pathway construction and the synergistic action of constituent genes was investigated for yield improvement. In Module 2, the effect of malonyl-CoA supply on fatty acid/naringenin production was explored through up-regulation of acetyl-CoA production and down-regulation of fatty acid biosynthesis...
July 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28706418/naringenin-prevents-experimental-liver-fibrosis-by-blocking-tgf%C3%AE-smad3-and-jnk-smad3-pathways
#5
Erika Hernández-Aquino, Natanael Zarco, Sael Casas-Grajales, Erika Ramos-Tovar, Rosa E Flores-Beltrán, Jonathan Arauz, Mineko Shibayama, Liliana Favari, Víctor Tsutsumi, José Segovia, Pablo Muriel
AIM: To study the molecular mechanisms involved in the hepatoprotective effects of naringenin (NAR) on carbon tetrachloride (CCl4)-induced liver fibrosis. METHODS: Thirty-two male Wistar rats (120-150 g) were randomly divided into four groups: (1) a control group (n = 8) that received 0.7% carboxy methyl-cellulose (NAR vehicle) 1 mL/daily p.o.; (2) a CCl4 group (n = 8) that received 400 mg of CCl4/kg body weight i.p. 3 times a week for 8 wk; (3) a CCl4 + NAR (n = 8) group that received 400 mg of CCl4/kg body weight i...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28699201/characterization-of-sugar-and-polyphenolic-diversity-in-floral-nectar-of-different-obla%C3%A4-inska-sour-cherry-clones
#6
Basem Guffa, Nebojša M Nedić, Dragana Č Dabić Zagorac, Tomislav B Tosti, Uroš M Gašić, Maja M Natić, Milica M Fotirić Akšić
'Oblačinska' sour cherry, an autochthonous cultivar, is the most planted cultivar in Serbian orchards. Since fruit trees in temperate zone reward insects by producing nectar which 'quality' affects the efficiency of insect pollination, the aim of this study was analyzing of sugars and polyphenolics in floral nectar of 16 'Oblačinska' sour cherry clones with different yielding potential. The contents of sugars and sugar alcohols were analyzed by ion chromatography, while polyphenolic profile was established using liquid chromatography - mass spectrometry technique (LC/MS)...
July 12, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28699113/protective-role-of-naringenin-against-a%C3%AE-25-35-caused-damage-via-er-and-pi3k-akt-mediated-pathways
#7
Ning Zhang, Zhonghua Hu, Zhibo Zhang, Guoliang Liu, Yeqiu Wang, Yandong Ren, Xiuhong Wu, Fang Geng
Senile plaque accumulation and neurofibrillary tangles are primary characteristics of Alzheimer's disease. We aimed to assess the protective functions of naringenin against β-amyloid protein fragment 25-35 (Aβ25-35)-caused nerve damage in differentiated PC12 cells, and study the potential mechanisms. We evaluated cell viability and apoptosis using the 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) test and flow cytometry, respectively. Moreover, we measured protein kinase B (Akt), glycogen synthase kinase-3β (GSK-3β), and caspase-3 activity via western blotting and RT-PCR...
July 11, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28698624/naringenin-impairs-two-pore-channel-2-activity-and-inhibits-vegf-induced-angiogenesis
#8
Irene Pafumi, Margherita Festa, Francesca Papacci, Laura Lagostena, Cristina Giunta, Vijay Gutla, Laura Cornara, Annarita Favia, Fioretta Palombi, Franco Gambale, Antonio Filippini, Armando Carpaneto
Our research introduces the natural flavonoid naringenin as a novel inhibitor of an emerging class of intracellular channels, Two-Pore Channel 2 (TPC2), as shown by electrophysiological evidence in a heterologous system, i.e. Arabidopsis vacuoles lacking endogenous TPCs. In view of the control exerted by TPC2 on intracellular calcium signaling, we demonstrated that naringenin dampens intracellular calcium responses of human endothelial cells stimulated with VEGF, histamine or NAADP-AM, but not with ATP or Angiopoietin-1 (negative controls)...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28682138/denatonium-and-naringenin-promote-sca-9-tumor-growth-and-angiogenesis-participation-of-arginase
#9
Ganna Dmytrenko, María E Castro, María E Sales
Submandibular gland (SMG) is one of the major salivary glands, and is formed by acinar cells that are conveyed to the oral cavity by a duct system. We had previously reported that T2R receptors that were originally identified in gustatory tissues were also present in murine SMG. The addition of bitter compounds to the gland reduced nitric oxide production and downregulated amylase secretion. In this work, we investigated the effect of two different bitter compounds namely denatonium and naringenin on tumor progression as well as the presence of T2R in SCA-9 cells derived from a murine tumor induced in SMG...
July 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28674493/a-systematic-strategy-for-discovering-a-therapeutic-drug-for-alzheimer-s-disease-and-its-target-molecule
#10
Zhiyou Yang, Tomoharu Kuboyama, Chihiro Tohda
Natural medicines are attractive sources of leading compounds that can be used as interventions for neurodegenerative disorders. The complexity of their chemical components and undetermined bio-metabolism have greatly hindered both the use of natural medicines and the identification of their active constituents. Here, we report a systematic strategy for evaluating the bioactive candidates in natural medicines used for Alzheimer's disease (AD). We found that Drynaria Rhizome could enhance memory function and ameliorate AD pathologies in 5XFAD mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28665345/in-vitro-effect-of-8-prenylnaringenin-and-naringenin-on-fibroblasts-and-glioblastoma-cells-cellular-accumulation-and-cytotoxicity
#11
Monika Stompor, Łukasz Uram, Rafał Podgórski
Gliomas are one of the most aggressive and treatment-resistant types of human brain cancer. Identification and evaluation of anticancer properties of compounds found in plants, such as naringenin (N) and 8-prenylnaringenin (8PN), are among the most promising applications in glioma therapy. The prenyl group seems to be crucial to the anticancer activity of flavones, since it may lead to enhanced cell membrane targeting and thus increased intracellular activity. It should be noted that 8PN content in hop cones is 10 to 100 times lower compared to other flavonoids, such as xanthohumol...
June 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28664138/naringenin-inhibits-pacemaking-activity-in-interstitial-cells-of-cajal-from-murine-small-intestine
#12
Hyun Jung Kim, Byung Joo Kim
BACKGROUND: Naringenin (NRG) is a common dietary polyphenolic constituent of fruits. NRG has diverse pharmacological activities, and is used in traditional medicine to treat various diseases including gastrointestinal (GI) disorders. Interstitial cells of Cajal (ICCs) are pacemaker cells of the GI tract. In this study, the authors investigated the effects of NRG on ICCs and on GI motility in vitro and in vivo. METHODS: ICCs were dissociated from mouse small intestines by enzymatic digestion...
June 2017: Integrative medicine research
https://www.readbyqxmd.com/read/28662128/molecular-and-functional-characterization-of-two-isoforms-of-chalcone-synthase-and-their-expression-analysis-in-relation-to-flavonoid-constituents-in-grewia-asiatica-l
#13
Tareq A Wani, Shahzad A Pandith, Ajai P Gupta, Suresh Chandra, Namrata Sharma, Surrinder K Lattoo
Chalcone synthase constitutes a functionally diverse gene family producing wide range of flavonoids by catalyzing the initial step of the phenylpropanoid pathway. There is a pivotal role of flavonoids in pollen function as they are imperative for pollen maturation and pollen tube growth during sexual reproduction in flowering plants. Here we focused on medicinally important fruit-bearing shrub Grewia asiatica. It is a rich repository of flavonoids. The fruits are highly acclaimed for various putative health benefits...
2017: PloS One
https://www.readbyqxmd.com/read/28636787/a-co-drug-conjugate-of-naringenin-and-lipoic-acid-mediates-neuroprotection-in-a-rat-model-of-oxidative-stress
#14
Tarek M Saleh, Monique C Saleh, Barry J Connell, Yang-Heon Song
Using our in vitro and in vivo models of oxidative stress, the current study was designed to determine the neuroprotective potential of naringenin, alone or in combination with lipoic acid. In our mixed neuronal culture exposed to hypoxia and subsequent reoxygenation, naringenin was shown to provide significant neuroprotection against cell death at a concentration of 2.5 μM. Lipoic acid (LA) did not produce neuroprotection at any concentration tested (0.25 to 100 μM). In contrast, when naringenin was covalently combined with LA, producing a novel compound named "VANL-100", significant neuroprotection was observed at a concentration as low as 2 x 10(-2) μM (100-fold more potent)...
June 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28634125/metabolic-engineering-of-yeast-for-fermentative-production-of-flavonoids
#15
Angelica Rodriguez, Tomas Strucko, Steen Gustav Stahlhut, Mette Kristensen, Daniel Killerup Svenssen, Jochen Forster, Jens Nielsen, Irina Borodina
Yeast Saccharomyces cerevisiae was engineered for de novo production of six different flavonoids (naringenin, liquiritigenin, kaempferol, resokaempferol, quercetin, and fisetin) directly from glucose, without supplementation of expensive intermediates. This required reconstruction of long biosynthetic pathways, comprising up to eight heterologous genes from plants. The obtained titers of kaempferol 26.57±2.66mgL(-1) and quercetin 20.38±2.57mgL(-1) exceed the previously reported titers in yeast. This is also the first report of de novo biosynthesis of resokaempferol and fisetin in yeast...
June 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28624598/inhibition-of-lps-induced-pro-inflammatory-responses-in-raw-264-7-macrophage-cells-by-pvp-coated-naringenin-nanoparticle-via-down-regulation-of-nf-%C3%AE%C2%BAb-p38mapk-mediated-stress-signaling
#16
Pradeep Kumar R, Annie Abraham
BACKGROUND: Naringenin (NAR) was found to display strong pharmacological properties. Since the clinical relevance of NAR is limited by its low bioavailability, we effectively synthesized and characterized a novel PVP-coated NAR nanoparticle (NAR NP) to enhance the therapeutic efficacy of NAR. The present study was designed to investigate the effects of NAR NP on lipopolysaccharide (LPS) induced inflammatory response in RAW 264.7 macrophage cells. METHODS: In vitro cell culture studies of LPS stimulated RAW 264...
April 6, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28622621/development-of-an-ultra-fast-liquid-chromatography-tandem-mass-spectrometry-method-for-simultaneous-determination-of-seven-flavonoids-in-rat-plasma-application-to-a-comparative-pharmacokinetic-investigation-of-ginkgo-biloba-extract-and-single-pure-ginkgo-flavonoids
#17
Tianyang Wang, Jie Xiao, Huiping Hou, Pei Li, Ziyue Yuan, Huarong Xu, Ran Liu, Qing Li, Kaishun Bi
For deeper pharmacokinetic investigation and further curative application of ginkgo flavonoids, a delicate, efficient and precise UFLC-MS/MS technique for synchronous quantitation of seven flavonoids, apigenin, luteolin, naringenin, quercetin, diosmetin, kaempferol and isorhamnetin in rat plasma has been established. After mixing with the internal standard (IS) linarin, bio-samples were pretreated via ethyl acetate for liquid-liquid extraction, then isolated at 0.2ml/min flow rate on a Venusil MP C18 chromatographic column (100mm×2...
May 30, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28622602/assessment-of-the-phenolic-profile-antimicrobial-activity-and-oxidative-stability-of-transgenic-perilla-frutescens-l-overexpressing-tocopherol-methyltransferase-%C3%AE-tmt-gene
#18
Bimal Kumar Ghimire, Chang Yeon Yu, Ill-Min Chung
This study evaluated the effects of enhanced concentrations of α-tocopherol and phenolic compounds on the resistance and stability of Perilla oil in transgenic Perilla frutescens plants against various tested pathogenic bacteria by over-expressing the γ-tmt gene. The concentration of phenolic compounds in the non-transgenic samples was 9313.198 ± 18.887 μg g(-1) dry weight (DW), whereas the total concentration of the transgenic samples ranged from 9118.015 ± 18.822 to 10527.612 ± 20.411 μg g(-1) DW...
June 7, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28622086/naringenin-ameliorates-behavioral-dysfunction-and-neurological-deficits-in-a-d-galactose-induced-aging-mouse-model-through-activation-of-pi3k-akt-nrf2-pathway
#19
Yan Zhang, Bin Liu, Xi Chen, Ning Zhang, Guang Li, Li-Hong Li-Hong Zhang, Li-Yan Li-Yan Tan
In this study, we evaluated the protective effects of naringenin on aging mice induced by D-gal. Open field test and Morris water maze test were performed to evaluate the effect of naringenin on behavioral dysfunction. HE staining, TUNEL staining and Nissl staining were used to estimate the effect of naringenin on neurological deficits. Furthermore, naringenin markedly activated PI3K/Akt signaling, eventually promoted the nuclear translocation of Nrf2 and induced the expressions of HO-1and NQO1. SOD, CAT and TBARS assays were conducted to evaluate oxidative stress in D-gal-induced aging mice...
June 16, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28620401/transcriptome-profiling-of-tomato-uncovers-an-involvement-of-cytochrome-p450s-and-peroxidases-in-stigma-color-formation
#20
Yan Zhang, Guiye Zhao, Yushun Li, Jie Zhang, Meijing Shi, Tayeb Muhammad, Yan Liang
Stigma is a crucial structure of female reproductive organ in plants. Stigma color is usually regarded as an important trait in variety identification in some species, but the molecular mechanism of stigma color formation remains elusive. Here, we characterized a tomato mutant, yellow stigma (ys), that shows yellow rather than typical green color in the stigma. Analysis of pigment contents revealed that the level of flavonoid naringenin chalcone was increased in the ys stigma, possibly as a result of higher accumulation of p-coumaric acid, suggesting that naringenin chalcone might play a vital role in yellow color control in tomato stigma...
2017: Frontiers in Plant Science
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