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https://www.readbyqxmd.com/read/28306529/in-vitro-inhibition-of-phosphodiesterase-5-and-arginase-activities-from-rat-penile-tissue-by-two-nigerian-herbs-hunteria-umbellata-and-anogeissus-leiocarpus
#1
Ganiyu Oboh, Adeniyi Abiodun Adebayo, Ayokunle Olubode Ademosun, Aline August Boligon
BACKGROUND: Anogeissus leiocarpus and Hunteria umbellata have been reportedly used in traditional medicine for the management of erectile dysfunction (ED). However, the scientific basis for their use has not been well established. Therefore, this study was designed to investigate the inhibitory effects of water extractable phytochemicals of H. umbellata and A. leiocarpus on phosphodiesterase-5 (PDE-5) and arginase as well as pro-oxidants induced lipid peroxidation in rat penile tissue...
March 17, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28301955/bioactive-compounds-and-antioxidants-from-a-mediterranean-garland-harvested-at-two-stages-of-maturity
#2
Leonardo Sulas, Giacomo L Petretto, Giorgio Pintore, Giovanna Piluzza
Chrysanthemum coronarium L. (garland) is an herbaceous plant rich in bioactive compounds. The chemical composition, bioactive compounds and antioxidant properties of a Mediterranean garland population were investigated in different organs at two phenological stages. Antioxidant capacity varied from 7.9 (vegetative) to 14.4 (flowering) mmol Trolox equivalent antioxidant capacity 100 g(-1) dry weight (DW). A significant correlation between antioxidant capacity and total phenolics and total flavonoids was found at flowering stage...
March 17, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28295328/oxidative-stability-in-oil-in-water-emulsions-with-quercetin-or-rutin-under-iron-catalysis-or-riboflavin-photosensitization
#3
BoRa Yi, HaeJung Ka, YongJun Kwon, HyungSeok Choi, Sunghwa Kim, Jisu Kim, Mi-Ja Kim, JaeHwan Lee
The effects of quercetin and rutin on the oxidative stability of oil-in-water (O/W) emulsions were tested under riboflavin (RF) photosensitization in the presence or absence of FeCl2 . The degree of oxidation in O/W emulsions was determined by headspace oxygen content, conjugated dienes, and lipid hydroperoxides. Quercetin chelated more metal than did rutin in iron catalyzed O/W emulsions. Generally, 0.1 mM quercetin and rutin was oxidative while 0.5 and 1.0 mM quercetin and rutin was antioxidative in O/W emulsions under RF photosensitization...
March 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28294333/permeation-characteristics-of-hypericin-across-caco-2-monolayers-in-the-presence-of-single-flavonoids-defined-flavonoid-mixtures-or-hypericum-extract-matrix
#4
Sheela Verjee, Olaf Kelber, Christiane Kolb, Heba Abdel-Aziz, Veronika Butterweck
OBJECTIVES: The major aim of this study was to get a detailed understanding of the exposure and fate of hypericin in the Caco-2 cell system when combined with various flavonoids, mixtures of flavonoids or Hypericum perforatum extract matrix (STW3-VI). METHODS: The permeation characteristics of hypericin in the absence or presence of quercetin, quercitrin, isoquercitrin, hyperoside and rutin were tested. Hypericin (5 μm) was mixed with single flavonoids (20 μm) or with different flavonoid combinations (each flavonoid 4 or 10 μm, total flavonoid concentration: 20 μm)...
March 12, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28294059/phytochemical-screening-alpha-glucosidase-inhibition-antibacterial-and-antioxidant-potential-of-ajuga-bracteosa-extracts
#5
Kokab Hafeez, Saiqa Andleeb, Tahseen Ghousa, Kalsoom Akhter
BACKGROUND: Ajuga bracteosa, a medicinal herb, used by local community to cure a number of diseases such as inflammation, jaundice bronchial asthma, cancer and diabetes. OBJECTIVES: The aim of present work was to evaluate the antioxidant potential, in vitro antidiabetic and antimicrobial effects of A. bracteosa. METHODS: n-hexane, ethyl acetate, chloroform, acetone, methanol and aqueous extracts of Ajuga bracteosa roots, were prepared via maceration...
March 12, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28293765/rutin-increases-the-cytotoxicity-of-temozolomide-in-glioblastoma-via-autophagy-inhibition
#6
Pingde Zhang, Stella Sun, Ning Li, Amy Suk Wai Ho, Karrie Mei Yee Kiang, Xiaoqin Zhang, Yin Stephen Cheng, Ming Wai Poon, Derek Lee, Jenny Kan Suen Pu, Gilberto Ka Kit Leung
The chemotherapeutic agent temozolomide (TMZ) is widely used in the treatment of glioblastoma multiforme (GBM). Rutin, a citrus flavonoid ecglycoside found in edible plants, has neuroprotective and anticancer activities. This study aimed to investigate the efficacy and the underlying mechanisms of rutin used in combination with TMZ in GBM. In vitro cell viability assay demonstrated that rutin alone had generally low cytotoxic effect, but it enhanced the efficacy of TMZ in a dose-dependent manner. Subcutaneous and orthotopic xenograft studies also showed that tumor volumes were significantly lower in mice receiving combined TMZ/Rutin treatment as compared to TMZ or rutin alone treatment...
March 14, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28289414/podophyllotoxin-and-rutin-modulates-ionizing-radiation-induced-oxidative-stress-and-apoptotic-cell-death-in-mice-bone-marrow-and-spleen
#7
Abhinav Singh, M H Yashavarddhan, Bhargab Kalita, Rajiv Ranjan, Sania Bajaj, Hridayesh Prakash, Manju Lata Gupta
The present study is aimed to investigate the radioprotective efficacy of G-003M (combination of podophyllotoxin and rutin) against gamma radiation-induced oxidative stress and subsequent cell death in mice bone marrow and spleen. Prophylactic administration of G-003M (-1 h) rendered more than 85% survival in mice exposed to 9 Gy (lethal dose) with dose reduction factor of 1.26. G-003M pretreated mice demonstrated significantly reduced level of reactive oxygen species, membrane lipid peroxidation, and retained glutathione level...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28286015/rutin-protects-against-h2o2-triggered-impaired-relaxation-of-placental-arterioles-and-induces-nrf2-mediated-adaptation-in-human-umbilical-vein-endothelial-cells-exposed-to-oxidative-stress
#8
Mireille M J P E Sthijns, Paul M Schiffers, Ger M Janssen, Kristien J A Lemmens, Bart Ides, Philippe Vangrieken, Freek G Bouwman, Edwin C Mariman, Irina Pader, Elias S J Arnér, Katarina Johansson, Aalt Bast, Guido R M M Haenen
BACKGROUND: Rutin intake is associated with a reduced risk of cardiovascular disease (CVD). The exact mechanism by which rutin can protect against CVD development is still enigmatic. Since, rutin is a compound with a relatively short half-life, the direct antioxidant effect of rutin cannot explain the long-lasting effect on human health. We hypothesized that rutin next to its direct antioxidant effect that improves endothelial function, may also induce an adaptive response in endogenous antioxidant systems...
March 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28283004/quantitative-analysis-of-rutin-quercetin-naringenin-and-gallic-acid-by-validated-rp-and-np-hptlc-methods-for-quality-control-of-anti-hbv-active-extract-of-guiera-senegalensis
#9
Perwez Alam, Mohammad K Parvez, Ahmed H Arbab, Mohammed S Al-Dosari
CONTEXT: Guiera senegalensis J.F. Gmel (Combretaceae) is a folk medicinal plant used in various metabolic and infectious diseases. In addition to its antiviral activities against herpes and fowlpox, the anti-HBV efficacy is very recently reported. OBJECTIVE: To develop and validate simple, sensitive RP-/NP-HPTLC methods for quantitative determination of biomarkers rutin, quercetin, naringenin, and gallic acid in the anti-HBV active G. senegalensis leaves ethanol-extract...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28282861/elderberry-and-elderflower-extracts-phenolic-compounds-and-metabolites-and-their-effect-on-complement-raw-264-7-macrophages-and-dendritic-cells
#10
Giang Thanh Thi Ho, Helle Wangensteen, Hilde Barsett
Modulation of complement activity and inhibition of nitric oxide (NO) production by macrophages and dendritic cells may have therapeutic value in inflammatory diseases. Elderberry and elderflower extracts, constituents, and metabolites were investigated for their effects on the complement system, and on NO production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages and murine dendritic D2SC/I cells. The EtOH crude extracts from elderberry and elderflower and the isolated anthocyanins and procyanidins possessed strong complement fixating activity and strong inhibitory activity on NO production in RAW cells and dendritic cells...
March 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28282602/analysis-of-antiproliferative-effect-of-chamerion-angustifolium-water-extract-and-its-fractions-on-several-breast-cancer-cell-lines
#11
Audrius Maruška, Rasa Ugenskienė, Danguolė Raulinaitytė, Elona Juozaitytė, Vilma Kaškonienė, Tomas Drevinskas, Ada Stelmakienė, Ieva Akuneca, Tomas Makaravičius, Nicola Tiso, Violeta Bartkuvienė, Olga Kornyšova, Ona Ragažinskienė, Kristina Ramanauskienė, Vitalis Briedis
PURPOSE: To evaluate the antiproliferative effect of the aerial part of Chamerion angustifolium (L.) Holub. (Onagraceae) extract and its fractions in vitro. This is the first study on the anti-proliferative effect of C. angustifolium on 3 distinct breast cancer cell lines. MATERIAL/METHODS: Breast cancer cell lines MCF7, MDA-MB-468 and MDA-MB-231 were exposed to different concentrations of the water extract of C. angustifolium, where DPPH radical scavenging activity was 0...
March 7, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28282556/mechanisms-involved-in-the-possible-nephroprotective-effect-of-rutin-and-low-dose-%C3%AE-irradiation-against-cisplatin-induced-nephropathy-in-rats
#12
Rasha R Radwan, Salma M Abdel Fattah
Cisplatin has demonstrated high antitumor efficacy. However, nephrotoxicity is a dose-limiting factor in its clinical use. The present study was designed to investigate the protective effect of rutin and low dose of irradiation (LDR) on cisplatin-induced nephrotoxicity in rats. Rats received rutin (200mg/kg/day, p.o) for 10 consecutive days and subjected to LDR (0.5Gy) 1day prior to cisplatin. Intraperitoneal administration of single dose of cisplatin (7.5mg/kg) was used to induce nephrotoxicity. Data showed that cisplatin caused elevation in serum creatinine and urea, disturbance in blood count, elevation in gene expression of tumor necrosis factor alpha, nuclear factor kappa B, interleukin-1β, caspase-3, mitochondrial cytochrome C and apoptosis-inducing factor in renal tissue...
March 2, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28279789/dietary-supplementation-with-rutin-has-pro-anti-inflammatory-effects-in-the-liver-of-juvenile-gift-tilapia-oreochromis-niloticus
#13
Yao Zheng, Zhixiang Zhao, Limin Fan, Shunlong Meng, Chao Song, Liping Qiu, Pao Xu, Jiazhang Chen
Dietary supplementation with rutin may have some pharmacological qualities including anti-inflammatory effects. Kupffer cell activation resulted in increased transcription of pro- and anti-inflammatory cytokines. The main purpose of this study was to investigate the pro- and anti-inflammatory activities in juvenile freshwater tilapia, Oreochromis niloticus, in response to 0.1 or 0.3 g/kg dietary supplementation of rutin. Results showed that hepatic IgM, anti-inflammatory-cytokines, and pro-inflammatory cytokines were significantly decreased in groups treated with high doses of rutin...
March 6, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28278682/phytochemical-analysis-of-the-ethanolic-extract-of-agathis-robusta-c-moore-ex-f-muell-f-m-bailey
#14
Alessandro Venditti, Claudio Frezza, Chiara Campanelli, Sebastiano Foddai, Armandodoriano Bianco, Mauro Serafini
This work reports the phytochemical analysis of the ethanolic extract obtained from the leaves of Agathis robusta (C. Moore ex F. Muell.) F.M. Bailey. The methodology utilised during this study comprised classical chromatographic and spectroscopic techniques. Six compounds were identified: agathisflavone (1), 7″-O-methyl-agathisflavone (2), cupressuflavone (3), rutin (4), shikimic acid (5) and (2S)-1,2-Di-O-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyl]-3-O-β-d-galactopyranosyl glycerol (6). These belong to four major classes of natural compounds: bi-flavonoids (1-3); diglycosidic flavonoids (4); cycloexen-carboxylic acids (5); glycerol-glycolipids (6)...
February 8, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278658/new-naphthalene-derivative-from-the-leaves-of-cassia-grandis-l
#15
Pham Thi Nhat Trinh, Ngoc Quoc Luan, Mai Dinh Tri, Vu Duy Khanh, Nguyen Huu An, Phan Nhat Minh, Pham Ngoc An, Nguyen Thi Le Thuy, Nguyen Kim Phi Phung, Le Tien Dung
Cassia grandis is used for the treatment of skin disorders, back pain, aches, etc. in Vietnamese traditional medicine. In this paper, phytochemicals of the leaves were investigated. A new naphthalene derivative (1, cassgranon D) and, seven known compounds rutin (2), afzelin (3), quercitrin (4), epicatechin (5), (-)-epiafzelechin (6), isoquercitrin (7) and aloe emodin (8) were isolated from the ethyl acetate and methanol extracts. Their structures were elucidated by spectral evidences (UV, IR, MS, (1)H, (13)C, DEPT, HSQC and HMBC NMR), as well as by comparing with published data...
February 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28274433/effect-of-acid-pretreatment-and-the-germination-period-on-the-composition-and-antioxidant-activity-of-rice-bean-vigna-umbellata
#16
Burachat Sritongtae, Thasanporn Sangsukiam, Michael R A Morgan, Kiattisak Duangmal
This research evaluated effect of germination period and acid pretreatment on chemical composition and antioxidant activity of rice bean sprouts. Moisture, total phenolics, reducing sugar and B vitamins (thiamine, riboflavin, and niacin) content of steamed sprouts increased with increasing germination time (p⩽0.05). Pretreatment with 1% (w/v) citric acid for 6h significantly increased the total phenolic content. The 18-h-germinated rice beans showed the highest crude protein content, as determined using the Kjeldahl method...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28274230/appraisal-of-phytochemical-and-in-vitro-biological-attributes-of-an-unexplored-folklore-rhus-punjabensis-stewart
#17
Saira Tabassum, Madiha Ahmed, Bushra Mirza, Muhammad Naeem, Muhammad Zia, Zabta Khan Shanwari, Gul Majid Khan
BACKGROUND: The role of plants for discovery of therapeutic potential accentuates the need to know their biological attributes. The present study aims to comprehend the biological attributes of Rhus punjabensis, an unexplored traditional medicinal plant. METHODS: Leaf and stem extracts of R. punjabensis prepared in 11 different organic solvents are evaluated for multimode antioxidant potential, total phenolic and flavonoid contents were determined through colorimetric assays, HPLC-DAD analysis was carried out for quantification of various polyphenols in extracts...
March 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28272837/the-effect-of-buckwheat-hull-extract-on-lipid-oxidation-in-frozen-stored-meat-products
#18
Marzanna Hęś, Artur Szwengiel, Krzysztof Dziedzic, Joanna Le Thanh-Blicharz, Dominik Kmiecik, Danuta Górecka
This study investigated the effect of antioxidants on lipid stability of frozen-stored meat products. Buckwheat hull extract was used to enrich fried meatballs made from ground pork. During 180-d storage of meat products, lipid oxidation (peroxide and 2-thiobarbituric acid reactive substances [TBARS] value) was periodically monitored. The results were compared with butylated hydroxytoluene (BHT). The addition of antioxidants decreased lipid oxidation in stored meatballs. The highest ability to control peroxide and TBARS values was demonstrated for buckwheat hull extract...
March 8, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28265358/blanching-influences-the-phenolics-composition-antioxidant-activity-and-inhibitory-effect-of-adansonia-digitata-leaves-extract-on-%C3%AE-amylase-%C3%AE-glucosidase-and-aldose-reductase
#19
Emmanuel A Irondi, Jacob K Akintunde, Samson O Agboola, Aline A Boligon, Margareth L Athayde
Adansonia digitata (A. digitata) leaves serve as food and has several medicinal uses in many parts of the world. This study evaluated the influence of blanching on the phenolics composition, antioxidant activity, and inhibitory effect of methanol extract of A. digitata leaves on the activities of some key enzymes (α-amylase, α-glucosidase, and aldose reductase) implicated in type 2 diabetes (T2D) in vitro. Reverse-phase HPLC analysis revealed that the leaves had appreciable levels of flavonoids and phenolic acids, including catechin, epicatechin, rutin, quercitrin, quercetin, kaempferol, and luteolin (flavonoids); gallic, chlorogenic, caffeic, and ellagic acids (phenolic acids)...
March 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28264513/influence-of-indole-3-acetic-acid-and-gibberellic-acid-on-phenylpropanoid-accumulation-in-common-buckwheat-fagopyrum-esculentum-moench-sprouts
#20
Chang Ha Park, Hyeon Ji Yeo, Yun Ji Park, Abubaker M A Morgan, Mariadhas Valan Arasu, Naif Abdullah Al-Dhabi, Sang Un Park
We investigated the effects of natural plant hormones, indole-3-acetic (IAA) acid and gibberellic acid (GA), on the growth parameters and production of flavonoids and other phenolic compounds in common buckwheat sprouts. A total of 17 phenolic compounds were identified using liquid chromatography-mass spectrometry (LC-MS) analysis. Among these, seven compounds (4-hydroxybenzoic acid, catechin, chlorogenic acid, caffeic acid, epicatechin, rutin, and quercetin) were quantified by high-performance liquid chromatography (HPLC) after treating the common buckwheat sprouts with different concentrations of the hormones IAA and GA...
February 28, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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