keyword
MENU ▼
Read by QxMD icon Read
search

Phytochemical

keyword
https://www.readbyqxmd.com/read/29458144/disruption-of-peroxisome-function-leads-to-metabolic-stress-mtor-inhibition-and-lethality-in-liver-cancer-cells
#1
Mengjiao Cai, Xiao Sun, Wenchao Wang, Zhusheng Lian, Ping Wu, Suxia Han, Huan Chen, Pumin Zhang
Peroxisome houses a large number of enzymes involved in lipid and phytochemical oxidation as well as synthesis of bile acid and other specialized lipids. Peroxisome resident enzymes are imported into the organelle via a conserved cargo transport system composed of many peroxins, protein factors essential for the biogenesis of peroxisome. Among the peroxins, PEX5 plays a transporter role, and PEX2, 10, and 12 are thought to form a complex that functions as an E3 ubiquitin ligase to help recycle PEX5 in an ubiquitin modification-dependent process...
February 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29457749/chemical-and-biological-studies-on-bridelia-ferruginea-grown-in-nigeria
#2
Michael Afolayan, Radhakrishnan Srivedavyasasri, Olayinka T Asekun, Oluwole B Familoni, Samir A Ross
Phytochemical investigation of the methanolic extract of dried leaves of Bridelia ferruginea led to the isolation and identification of fourteen compounds (1-14): compound 1 [mixture of palmitic, stearic and oleic acids], stearyl monoester of 2-O-β-ᴅ-glucosylglycerol (2), 6β-hydroxy-(20R)-24-ethylcholest-4-en-3-one (3a), 6β-hydroxy-(20R)-24-ethylcholest-4,22-dien-3-one (3b), lutein (4), vomifoliol (5), corilagin (6), kaempferide-3-O-β-ᴅ-glucoside (7), myricetin (8), isomericitrin (9), isoquercetin (10), myricitrin (11), quercitrin (12), rutin (13), and β-sitosterol glucoside (14)...
February 19, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29457748/structural-determination-of-two-new-acacic-acid-type-saponins-from-the-stem-barks-of-albizia-zygia-dc-j-f-macbr
#3
Olivier Placide Noté, Line Made Simo, Joséphine Ngo Mbing, Dominique Guillaume, Christian Dominique Muller, Dieudonné Emmanuel Pegnyemb, Annelise Lobstein
As a continuation of our interest in the study of triterpenoid saponins from Albizia zygia, phytochemical investigation of its stem barks led to the isolation of two new oleanane-type saponins, named zygiaosides C-D (1-2). Their structures were established on the basis of extensive analysis of 1D and 2D NMR (1H-, 13C NMR, DEPT, COSY, TOCSY, ROESY, HSQC and HMBC) experiments, HRESIMS studies, and by chemical evidence as, 3-O-[ β-d-glucopyranosyl-(1→2)-[α-l-arabinopyranosyl-(1→6)]-β-d-glucopyranosyl]-21-O-[(2E,6S)-2,6-dimethyl-6-O-(β-d-quinovopyranosyl) octa-2,7-dienoyl]acacic acid 28-O-α-l-arabinofuranosyl-(1→4)-[β-d-glucopyranosyl-(1→3)]-α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl ester (1) and 3- O-[β-d-glucopyranosyl-(1→2) -[ β-d-fucopyranosyl-(1→6)]-β-d-glucopyranosyl]-21-O-[(2E,6S)-2,6-dimethyl-6-O-(β-D-quinovopyranosyl) octa-2,7-dienoyl]acacic acid 28-O-α-l-arabinofuranosyl-(1→4)-[β-d-glucopyranosyl-(1→3)]-α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl ester (2)...
February 19, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29456811/-in-vivo-activity-assessment-of-some-tanacetum-species-used-as-traditional-wound-healer-along-with-identification-of-the-phytochemical-profile-by-a-new-validated-hplc-method
#4
Serkan Özbilgin, Esra Küpeli Akkol, Burçin Ergene Öz, Mert Ilhan, Gülçin Saltan, Özlem Bahadır Acıkara, Mehmet Tekin, Hikmet Keleş, Ipek Süntar
Objectives: Tanacetum species are traditionally used as insecticide, and externally wound healer as well as for anti-inflammatory and antihistaminic properties. The in vivo wound-healing and anti-inflammatory potential of four Tanacetum species, Tanacetum argenteum (Lam.) Willd. subsp. argenteum (TA) , Tanacetum heterotomum (Bornm.) Grierson (TH), Tanacetum densum (Lab.) Schultz Bip. subsp. sivasicum (TD), and Tanacetum vulgare L. (TV) was investigated. Materials and Methods: The chloroform (CHCl3 ) and methanol:water (80:20) extracts were prepared from the aerial parts of each plant...
February 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29455727/enhancement-of-gut-permeation-of-amoxicillin-with-nigella-sativa-seed-extract-and-its-phytochemical-screening
#5
Babar Ali, Mohammad Ali, Saima Amin, Showkat R Mir
The seeds of Nigella sativa Linn. (Ranunculaceae), commonly known as Black cumin, are predominantly used as carminative, antispasmodic, and stimulant. The main objective of the present study was to evaluate the effect of N. sativa seed extract on the permeation of co-infused amoxicillin across the gut wall. The methanolic extract of N. sativa improved intestinal permeability of amoxicillin in in-vitro experiments in a dose-dependent manner. Two new glycosides, decanyl nigelloic acid diglucoside [n-decanyl-3-aldehydic-4-methoxy-5-hydroxy benzoate-5-β-D-glucofuranosyl (2→1)-β-D-glucopyranosyl-(2→1)-β-D-glucopyranoside]] and nigelabdienoyl triglucoside [homo-labd-5, 9(11)-dien-16-onyl-β-D-glucopyranosyl (2→1)-β-D-glucopyranosyl (2→1)-β-D-glucopyranoside], along with seven known fatty acid glycerides/esters, were isolated from the gut permeation enhancing extract...
February 2018: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/29455357/phytochemical-constituents-antioxidant-activity-and-antiproliferative-properties-of-black-red-and-brown-rice-bran
#6
Ali Ghasemzadeh, Mohamad Taghi Karbalaii, Hawa Z E Jaafar, Asmah Rahmat
BACKGROUND: In the recent years, the health benefits of the pigmented rice varieties have reported due to the presence of bioactive compounds. In this study, the phytochemical constituents (total phenolic, flavonoid and anthocyanin content) and individual phenolics and flavonoids of the extracts of sixteen genotypes of pigmented rice bran were evaluated using spectrophotometric and ultra-high performance liquid chromatography method. Antioxidative properties of the free and bound fractions were evaluated using nitric oxide and 1,1-diphenyl-2-picrylhydrazyl scavenging assays...
February 17, 2018: Chemistry Central Journal
https://www.readbyqxmd.com/read/29454952/probing-the-interaction-of-the-phytochemical-6-gingerol-from-the-spice-ginger-with-dna
#7
Poovvathingal Haris, Varughese Mary, Chellappanpillai Sudarsanakumar
6-Gingerol [5-hydroxy-1-(4-hydroxy-3-methoxyphenyl) decan-3-one], the bio-active ingredient of the popular Indian spice ginger (Zingiber officinale Roscoe), is well-known for its pharmacological and physiological actions. The potent antioxidant, antiemetic, antiulcer, antimicrobial, analgesic, hypoglycemic, antihypertensive, antihyperlipidemic, immunostimulant, anti-inflammatory, cardiotonic, and cancer prevention activities of 6-Gingerol has been investigated and explored. 6-Gingerol is a good candidate for the treatment of various cancers including prostrate, pancreatic, breast, skin, gastrointestinal, pulmonary, and renal cancer...
February 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29453917/comparative-chemical-investigation-and-evaluation-of-antioxidant-and-tyrosinase-inhibitory-effects-of-withania-somnifera-l-dunal-and-solanum-nigrum-l-berries
#8
Abdul Hameed, Naveed Akhtar
In the present study, berries of two different species of Solanaceae family, Withania somnifera (WS) and Solanum nigrum (SN), were extracted in methanol and then fractionated with solvents, ranging from non-polar to polar, for their phytochemical profiling and investigation of antioxidant and tyrosinase enzyme inhibition capacity. The methanolic extract and n-hexane, ethyl acetate (WSEA, SNEA) and aqueous fractions were chemically analyzed and evaluated for biological activity. Total flavonoids and total phenolics were quantified in WSEA (96...
March 1, 2018: Acta Pharmaceutica
https://www.readbyqxmd.com/read/29453089/botanical-essential-oils-and-uses-as-mosquitocides-and-repellents-against-dengue
#9
REVIEW
Muthiah Chellappandian, Prabhakaran Vasantha-Srinivasan, Sengottayan Senthil-Nathan, Sengodan Karthi, Annamalai Thanigaivel, Athirstam Ponsankar, Kandaswamy Kalaivani, Wayne B Hunter
Plants naturally produce bioactive compounds along with many secondary metabolites which serve as defensive chemical against herbivorers including insect pests. One group of these phytochemicals are the 'Essential Oils' (EO's), which possess an extensive range of biological activity especially insecticidal and insect repellents. This review provides a comprehensive viewpoint on potential modes of action of biosafety plant derived Essential Oils (EO's) along with their principal chemical derivatives against larvae and adult mosquito vectors of dengue virus...
February 13, 2018: Environment International
https://www.readbyqxmd.com/read/29452350/extra-virgin-olive-oil-contains-a-metabolo-epigenetic-inhibitor-of-cancer-stem-cells
#10
Bruna Corominas-Faja, Elisabet Cuyàs, Jesús Lozano-Sánchez, Sílvia Cufí, Sara Verdura, Salvador Fernández-Arroyo, Isabel Borrás-Linares, Begoña Martin-Castillo, Ángel G Martin, Ruth Lupu, Alfons Nonell-Canals, Melchor Sanchez-Martinez, Vicente Micol, Jorge Joven, Antonio Segura-Carretero, Javier A Menendez
Targeting tumor-initiating, drug-resistant populations of cancer stem cells (CSC) with phytochemicals is a novel paradigm for cancer prevention and treatment. We herein employed a phenotypic drug discovery approach coupled to mechanism-of-action profiling and target deconvolution to identify phenolic components of extra virgin olive oil (EVOO) capable of suppressing the functional traits of CSC in breast cancer (BC). In vitro screening revealed that the secoiridoid decarboxymethyl oleuropein aglycone (DOA) could selectively target sub-populations of epithelial-like, aldehyde dehydrogenase (ALDH)-positive and mesenchymal-like, CD44+CD24-/low CSC...
February 14, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29452197/essential-oils-from-origanum-vulgare-and-salvia-officinalis-exhibit-antibacterial-and-anti-biofilm-activities-against-streptococcus-pyogenes
#11
Niluni M Wijesundara, H P Vasantha Rupasinghe
In the present study, essential oils (EOs) extracted from oregano, sage, cloves, and ginger were evaluated for the phytochemical profile, antibacterial, and anti-biofilm activities against Streptococcus pyogenes. The broth microdilution method was used to determine the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of EOs. The minimum biofilm inhibitory concentrations (MBICs) were determined using MTT assay and fixed biofilms were observed through scan electron microscopy...
February 13, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29451595/evaluation-of-molluscicidal-activity-of-three-mangrove-species-avicennia-schaueriana-laguncularia-racemosa-and-rhizophora-mangle-and-their-effects-on-the-bioactivity-of-biomphalaria-glabrata-say-1818
#12
Renato Juvino de Aragão Mendes, Adalberto Alves Pereira Filho, Aline de Jesus Lustosa Nogueira, Karla Regina Freitas Araújo, Clícia Rosane Costa França, Iramar Borba de Carvalho, Natale Maria Lindoso da Silva, Alexandre Santana Azevedo, Ivone Garros Rosa
Schistosomiasis is a disease of global extent reaching populations in social vulnerability. One of the control measures of this parasitosis is the use of molluscicidal substances that can fight snails of the genus Biomphalaria, intermediate hosts of Schistosoma mansoni. The aim of this work was to study the toxic activity of three mangrove species (Avicennia schaueriana Stapf. & Leech, ex Moldenke, 1939, Laguncularia racemosa (L.) CF Gaertn, 1807 and Rhizophora mangle L. 1753) on the biological activities of snails Biomphalaria glabrata...
2018: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/29451459/apiaceous-vegetables-and-cruciferous-phytochemicals-reduced-phip-dna-adducts-in-prostate-but-not-in-pancreas-of-wistar-rats
#13
Jae Kyeom Kim, Marissa A McCormick, Cynthia M Gallaher, Daniel D Gallaher, Sabrina P Trudo
We previously showed rats fed with apiaceous vegetables, but not with their putative chemopreventive phytochemicals, reduced colonic DNA adducts formed by 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), a dietary procarcinogen. We report here the effects of feeding apiaceous and cruciferous vegetables versus their purified predominant phytochemicals, either alone or combined, on prostate and pancreatic PhIP-DNA adduct formation. In experiment I, male Wistar rats received three supplemented diets: CRU (cruciferous vegetables), API (apiaceous vegetables), and CRU+API (both types of vegetables)...
February 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29450411/revalorization-of-wild-asparagus-stipularis-forssk-as-a-traditional-vegetable-with-nutritional-and-functional-properties
#14
Khaoula Adouni, Hassiba Chahdoura, Habib Mosbah, Celestino Santos-Buelga, Ana M González-Paramás, María Ciudad-Mulero, Ângela Fernandes, Ricardo C Calhelha, Patricia Morales, Guido Flamini, Isabel C F R Ferreira, Lotfi Achour
The nutritional values and phytochemical composition of young shoots of wild Asparagus stipularis Forssk. from Tunisia were determined in this study. The antioxidant (tested by four different in vitro assays) and antiproliferative properties (against human tumour cell lines) of aqueous and hydroalcoholic extracts of the young shoots were also investigated. The obtained results indicated that the young shoots are a potential source of valuable nutrients and dietary fiber, and their hydroalcoholic extract showed marked antioxidant and antiproliferative activities in all tested assays...
February 16, 2018: Food & Function
https://www.readbyqxmd.com/read/29450200/nutritional-compositions-and-phytochemical-properties-of-the-edible-flowers-from-selected-zingiberaceae-found-in-thailand
#15
Apinya Rachkeeree, Kuttiga Kantadoung, Ratchuporn Suksathan, Ratchadawan Puangpradab, Paul Alexander Page, Sarana Rose Sommano
The nutritional compositions and phytochemical properties of eight edible flowers of the ginger family (Zingiberaceae) commonly found in Thailand are reported herein. The plant genera investigated were Zingiber (Ginger, Phlai Dam, Krathue), Hedychium (two morphological filament forms), Curcuma (Ao), Etlingera (Torch ginger), Amomum (Chi Kuk), and Alpinia (Galangal), which are eaten fresh or cooked as ingredients in the preparation of many Thai dishes. The proximate compositions (moisture, ash, fiber, protein, fat, and carbohydrate contents) varied among the different genera...
2018: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29449854/genome-wide-characterization-of-bhlh-genes-in-grape-and-analysis-of-their-potential-relevance-to-abiotic-stress-tolerance-and-secondary-metabolite-biosynthesis
#16
Pengfei Wang, Ling Su, Huanhuan Gao, Xilong Jiang, Xinying Wu, Yi Li, Qianqian Zhang, Yongmei Wang, Fengshan Ren
Basic helix-loop-helix (bHLH) transcription factors are involved in many abiotic stress responses as well as flavonol and anthocyanin biosynthesis. In grapes ( Vitis vinifera L.), flavonols including anthocyanins and condensed tannins are most abundant in the skins of the berries. Flavonols are important phytochemicals for viticulture and enology, but grape bHLH genes have rarely been examined. We identified 94 grape bHLH genes in a genome-wide analysis and performed Nr and GO function analyses for these genes...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29448638/delivery-of-abscisic-acid-to-plants-using-glutathione-responsive-mesoporous-silica-nanoparticles
#17
Dequan Sun, Hashmath I Hussain, Zhifeng Yi, James E Rookes, Lingxue Kong, David M Cahill
An intracellular glutathione (GSH) responsive phytochemical delivery system based on thiol gated mesoporous silica nanoparticles (MSNs) was developed and tested on the model plant Arabidopsis thaliana. In the present study, monodispersed MSNs with particle diameters of ~20 nm and pore sizes of ~2.87 nm were synthesized and modified. Abscisic acid (ABA), a key phytohormone, was entrapped in the mesopores of MSNs and then the pore entrances of MSNs were covered with decanethiol gatekeepers through GSH-cleavable disulfide linkages...
March 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448207/ferulic-acid-protects-lipopolysaccharide-induced-acute-kidney-injury-by-suppressing-inflammatory-events-and-upregulating-antioxidant-defenses-in-balb-c-mice
#18
Salma Mukhtar Mir, Halley Gora Ravuri, Raj Kumar Pradhan, Sairam Narra, Jerald Mahesh Kumar, Madhusudana Kuncha, Sanjit Kanjilal, Ramakrishna Sistla
Sepsis-induced acute kidney injury (AKI) is responsible for 70-80% mortality in intensive care patients due to elevated levels of endotoxin, Lipopolysaccharide (LPS) caused by gram-negative infections. Ferulic acid (FA), a phenolic phytochemical is known for its renal protection on various induced models of nephrotoxicity. However, the curative effect of FA in LPS-induced AKI is not well studied. This study aimed to investigate the effect of FA on LPS-induced AKI in mice model and to understand the protective mechanisms involved, to provide evidence for FA in the treatment of AKI...
February 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29448206/regulation-of-jak2-stat3-and-nf-%C3%AE%C2%BAb-signal-transduction-pathways-veronica-polita-alleviates-dextran-sulfate-sodium-induced-murine-colitis
#19
Md Rashedunnabi Akanda, Hyeon-Hwa Nam, Weishun Tian, Anowarul Islam, Byung-Kil Choo, Byung-Yong Park
Ulcerative colitis (UC) is a major inflammatory bowel disease (IBD) has become a worldwide emergent disease. Veronica polita (VP) is a medicinal herb that has strong antioxidant and anti-inflammatory properties. In the present study, we studied the protective effect of VP on dextran sulfate sodium (DSS)-induced experimental colitis in mice. Phytochemical screening of VP extract demonstrated the presence of high total phenolic and flavonoid contents. Compared with the DSS group, VP significantly reduced clinical symptoms with less weight loss, bloody stool, shortening of the colon, and the severity of colitis was considerably inhibited as evidenced by the reduced disease activity index (DAI) and degree of histological damage in the colon and spleen...
February 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29447979/jatrophanes-as-promising-multidrug-resistance-modulators-advances-of-structure-activity-relationships
#20
Jun Li, Wen-Qiong Wang, Shuai Tang, Wei-Bin Song, Li-Jiang Xuan
The phytochemical study of Euphorbia helioscopia afforded euphornin (1) in a large amount. Alkaline hydrolysis of 1 using potassium carbonate yielded the main product monodeacetyleuphornin (2), whose structural modification at 14-OH gave rise to 21 acylated derivatives euphornoate A-U (3-23). Thus, a mini compound library of jatrophanes was established to screen for MDR modulators. Biological studies clearly demonstrated the effect of C-14 pattern modification in MDR reversal activity and several compounds with RF values over 300 fold at 20 μM (6, 16, 20, 22, 23) were thought to be promising MDR modulators...
February 12, 2018: Fitoterapia
keyword
keyword
1094
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"