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https://www.readbyqxmd.com/read/28100919/preventive-effect-of-eucommia-leaf-extract-on-aortic-media-hypertrophy-in-wistar-kyoto-rats-fed-a-high-fat-diet
#1
Shingo Hosoo, Masahiro Koyama, Akira Watanabe, Ryuya Ishida, Tetsuya Hirata, Yasuyo Yamaguchi, Hiroo Yamasaki, Keiji Wada, Yukihito Higashi, Kozo Nakamura
Eucommia ulmoides Oliver leaf extract (ELE) has been shown to have anti-hypertensive and anti-obesity effects in rats that are fed a high-fat diet (HFD). To explore the effects of chronic administration of ELE on body weight, blood pressure and aortic media thickness, 7-week-old male Wistar-Kyoto (WKY) rats were orally administered a normal diet, a 30% HFD, or a 5% ELE plus HFD ad libitum for 10 weeks. The HFD treatment caused mild obesity and hypertension in the normotensive rats, while rats receiving both ELE and the HFD had significantly lower body weights, less visceral and perirenal fat, lower blood pressure and thinner aortic media than the control rats receiving the HFD only...
January 19, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28067965/rp-hplc-dad-esi-qtof-ms-based-metabolic-profiling-of-the-potential-olea-europaea-by-product-wood-and-its-comparison-with-leaf-counterpart
#2
Sonda Ammar, Maria Del Mar Contreras, Boutheina Gargouri, Antonio Segura-Carretero, Mohamed Bouaziz
INTRODUCTION: Olea europaea L. organs such as leaves, stems and roots have been associated with numerous in vivo and in vitro biological activities and used for traditional medicinal purposes. However, tree wood is an untapped resource with little information about their chemical composition. OBJECTIVE: That is why, the objective of this study is to increase the knowledge about phytochemicals from 'Chemlali' olive wood by means of mass spectrometry-based analyses...
January 9, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28060487/how-does-the-amount-and-composition-of-pm-deposited-on-platanus-acerifolia-leaves-change-across-different-cities-in-europe
#3
Chiara Baldacchini, Ana Castanheiro, Nairuhi Maghakyan, Gregorio Sgrigna, Jolien Verhelst, Rocio Alonso, Jorge H Amorim, Patrick Bellan, Juergen Breuste, Oliver Bühler, Ilie C Cântar, Paloma Cariñanos, Giulia Carriero, Galina Churkina, Lucian Dinca, Raffaela Esposito, Stanislaw W Gawronski, Maren Kern, Didier Le Thiec, Marco Moretti, Tine Ningal, Eleni C Rantzoudi, Iztok Sinjur, Biljana Stojanova, Mira Aničić Urošević, Violeta Velikova, Ivana Zivojinovic, Lilit Sahakyan, Carlo Calfapietra, Roeland Samson
Particulate matter (PM) deposited on Platanus acerifolia tree leaves has been sampled in the urban areas of 28 European cities, over 20 countries, with the aim of testing leaf deposited particles as indicator of atmospheric PM concentration and composition. Leaves have been collected close to streets characterised by heavy traffic and within urban parks. Leaf surface density, dimensions, and elemental composition of leaf deposited particles have been compared with leaf magnetic content, and discussed in connection with air quality data...
January 6, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28035149/optimization-of-a-green-extraction-method-for-the-recovery-of-polyphenols-from-olive-leaf-using-cyclodextrins-and-glycerin-as-co-solvents
#4
Ioannis Mourtzinos, Eleni Anastasopoulou, Athanasios Petrou, Spyros Grigorakis, Dimitris Makris, Costas G Biliaderis
Olive leaf, an agricultural by-product, was studied for the valorization of its biophenols using green extraction techniques; i.e. non-toxic and eco-friendly extraction solvents were used, involving water and glycerol. 2-hydroxypropyl-β-cyclodextrin (CD), was also employed as an enhancer of the extraction, since cyclodextrins (CD's) are known to improve the extractability of olive leaf polyphenols by forming water soluble inclusion complexes. The process was optimized by implementing a central composite (Box-Behnken) experimental design and response surface methodology, taking into consideration the following independent variables: glycerol concentration (Cgl), CD concentration (CCD) and temperature (T)...
November 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28011361/unexpected-effect-of-dry-olive-leaf-extract-on-the-level-of-dna-damage-in-lymphocytes-of-lead-intoxicated-workers-before-and-after-cana2edta-chelation-therapy
#5
Andrea Čabarkapa, Dragana Dekanski, Lada Živković, Mirjana Milanović-Čabarkapa, Vladan Bajić, Dijana Topalović, Francesca Giampieri, Massimiliano Gasparrini, Maurizio Battino, Biljana Spremo-Potparević
The CaNa2EDTA chelation therapy is often practiced with antioxidant supplementation. Dry olive leaf extract (DOLE) is natural product with antioxidant and DNA protective properties. The effects of DOLE on the levels of DNA damage were investigated ex vivo in peripheral blood lymphocytes (PBLs) of 19 workers occupationally exposed to lead (Pb), before and after CaNa2EDTA chelation therapy. DOLE demonstrated pronounced radical scavenging activity in concentrations ≥1 mg/mL, and showed no genotoxicity per se, in concentrations 0...
December 21, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27979083/thermal-stability-of-oils-added-with-avocado-persea-americana-cv-hass-or-olive-olea-europaea-cv-arbequina-leaf-extracts-during-the-french-potatoes-frying
#6
Paula Jiménez, Paula García, Andrés Bustamante, Andrés Barriga, Paz Robert
Effect of the addition of avocado (Persea americana cv. Hass) or olive (Olea europaea cv. Arbequina) hydroalcoholic leaf extracts (AHE and OHE, respectively) on thermal stability of canola oil (CO) and high oleic sunflower oil (HOSO) during French potatoes frying at 180°C was studied. The extracts were characterized by the total phenolic content, phenol chromatographic profiles and antioxidant activity. B-type trimer procyanidins were the major phenolic compounds identified in AHE. OHE showed higher phenol content, antioxidant activity regarding AHE...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27964727/genetic-variation-of-naturally-growing-olive-trees-in-israel-from-abandoned-groves-to-feral-and-wild
#7
Oz Barazani, Alexandra Keren-Keiserman, Erik Westberg, Nir Hanin, Arnon Dag, Giora Ben-Ari, Ori Fragman-Sapir, Yizhar Tugendhaft, Zohar Kerem, Joachim W Kadereit
BACKGROUND: Naturally growing populations of olive trees are found in the Mediterranean garrigue and maquis in Israel. Here, we used the Simple Sequence Repeat (SSR) genetic marker technique to investigate whether these represent wild var. sylvestris. Leaf samples were collected from a total of 205 trees at six sites of naturally growing olive populations in Israel. The genetic analysis included a multi-locus lineage (MLL) analysis, Rousset's genetic distances, Fst values, private alleles, other diversity values and a Structure analysis...
December 13, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27942549/topical-olive-leaf-extract-improves-healing-of-oral-mucositis-in-golden-hamsters
#8
Najmeh Showraki, Maryam Mardani, Masoumeh Emamghoreishi, Azadeh Andishe-Tadbir, Alireza Aram, Peiman Mehriar, Mahmoud Omidi, Masood Sepehrimanesh, Omid Koohi-Hosseinabadi, Nader Tanideh
STATEMENT OF THE PROBLEM: Oral mucositis (OM) is a common side effect of anti-cancer drugs and needs significant attention for its prevention. PURPOSE: This study aimed to evaluate the healing effects of olive leaf extract on 5-fluorouracil-induced OM in golden hamster. MATERIALS AND METHOD: OM was induced in 63 male golden hamsters by the combination of 5-fluorouracil injections (days 0, 5 and 10) and the abrasion of the cheek pouch (days 3 and 4)...
December 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27927065/aqueous-extract-of-securidaca-longipendunculata-oliv-and-olax-subscropioidea-inhibits-key-enzymes-acetylcholinesterase-and-butyrylcholinesterase-linked-with-alzheimer-s-disease-in-vitro
#9
Jamiu A Saliu, Ayodeji A Olabiyi
CONTEXT: Plants have historically been used to treat neurodegerative diseases which include Alzheimer's disease. OBJECTIVE: This study investigated the antioxidant properties and inhibitory effect of aqueous extracts of Securidaca longipendunculata root and Olax subscropioidea leaf on the cholinergic system in rat brain in vitro. MATERIALS AND METHODS: Aqueous extracts (1:20 w/v) of S. longipendunculata root and O. subscropioidea leaf was prepared and the ability of the extract to inhibit the activities of acetylcholinesterase and butyrylcholinesterase was evaluated as well as antioxidants as typified by 2,2-azino-bis-(3-ethylbenthiazoline-6-sulphonic acid (ABTS(•)) radical scavenging ability and Fe chelation spectophotometrically...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27918443/human-intervention-study-to-assess-the-effects-of-supplementation-with-olive-leaf-extract-on-peripheral-blood-mononuclear-cell-gene-expression
#10
Anna Boss, Chi Hsiu-Juei Kao, Pamela M Murray, Gareth Marlow, Matthew P G Barnett, Lynnette R Ferguson
Olive leaf extract (OLE) has been used for many years for its putative health benefits, but, to date, scientific evidence for the basis of these effects has been weak. Although recent literature has described a link between ailments such as cardiovascular disease, diabetes and cancer and a protective effect of polyphenols in the OLE, the mode of action is still unclear. Here, we describe a double-blinded placebo (PBO)-controlled trial, in which gene expression profiles of peripheral blood mononuclear cells from healthy male volunteers (n = 29) were analysed to identify genes that responded to OLE, following an eight-week intervention with 20 mL daily consumption of either OLE or PBO...
December 2, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27910900/zn-uptake-behavior-of-rice-genotypes-and-its-implication-on-grain-zn-biofortification
#11
Sarah E Johnson-Beebout, Johnvie Bayang Goloran, Francis H C Rubianes, Jack D C Jacob, Oliver B Castillo
Understanding Zn uptake dynamics is critical to rice grain Zn biofortification. Here we examined soil Zn availability and Zn uptake pathways as affected by genotype (high-grain Zn varieties IR69428 and IR68144), Zn fertilization and water management in two pot experiments. Results showed significant interactions (P < 0.05) between genotypes and Zn fertilization on DTPA (diethylenetriaminepentaacetic acid)-extractable soil Zn from early tillering to flowering. DTPA-extractable Zn in soils grown with IR69428 was positively correlated with stem (r = 0...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900540/a-novel-east-african-monopartite-begomovirus-betasatellite-complex-that-infects-vernonia-amygdalina
#12
Happyness G Mollel, Joseph Ndunguru, Peter Sseruwagi, Titus Alicai, John Colvin, Jesús Navas-Castillo, Elvira Fiallo-Olivé
The complete genomes of a monopartite begomovirus (genus Begomovirus, family Geminiviridae) and an associated betasatellite found infecting Vernonia amygdalina Delile (family Compositae) in Uganda were cloned and sequenced. Begomoviruses isolated from two samples showed the highest nucleotide sequence identity (73.1% and 73.2%) to an isolate of the monopartite begomovirus tomato leaf curl Vietnam virus, and betasatellites from the same samples exhibited the highest nucleotide sequence identity (67.1% and 68...
November 29, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27882320/mediterrasian-diet-products-that-could-raise-hdl-cholesterol-a-systematic-review
#13
REVIEW
Mariangela Rondanelli, Attilio Giacosa, Paolo Morazzoni, Davide Guido, Mario Grassi, Gabriella Morandi, Chiara Bologna, Antonella Riva, Pietro Allegrini, Simone Perna
Background. High HDL-cholesterol (HDL-C) values are negatively correlated with cardiovascular diseases. This review analyses the effect of the supplementation with various Mediterranean diet products (artichoke, bergamot, and olive oil) and Asian diet products (red yeast rice) on the HDL-C value in dyslipidemic subjects. Methods. A systematic review has been done involving all the English written studies published from the 1st of January 1958 to the 31st of March 2016. Results. The results of this systematic review indicate that the dietary supplementation with red yeast rice, bergamot, artichoke, and virgin olive oil has promising effects on the increase of HDL-C serum levels...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27876915/effect-of-olive-leaf-satureja-khuzestanica-and-allium-sativum-extracts-on-giardia-lamblia-cysts-compared-with-metronidazole-in-vitro
#14
Sh Fallahi, A Rostami, B Delfan, Y Pournia, M Rashidipour
Giardia lamblia is one of the common causes of worldwide diarrhea in children. Appropriate medicinal treatment for giardiasis is available but there are some evidences of drug resistance, insufficient efficacy, and unpleasant side effects. In order to reach a more natural drug with suitable efficacy and the lowest side effects, the effects of the hydroalcoholic extracts of olive leaf, Satureja khuzestanica, and Allium sativum on G. lamblia cysts were evaluated in vitro, as well as antigiardial effect of the extracts was compared with metronidazole as the drug of choice...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27860303/effect-of-olive-leaf-extract-on-glucose-levels-in-diabetes-induced-rats-a-systematic-review-and-meta-analysis
#15
Hamzeh Abunab, Wireen L Dator, Sana Hawamdeh
BACKGROUND: The present systematic review statistically analyzed randomized controlled trials on olive leaf extract (OLE) for effectiveness in managing glucose levels in diabetic rats. METHODS: A literature search was performed using PubMed, the Cochrane Central Register of Controlled Trials, and EBSCO host databases. Selected articles, with no date restriction in the search process, were assessed independently by the authors using SYRCLE's risk of bias tool for animal studies...
November 17, 2016: Journal of Diabetes
https://www.readbyqxmd.com/read/27855900/selective-ultrasound-enhanced-enzymatic-hydrolysis-of-oleuropein-to-its-aglycon-in-olive-olea-europaea-l-leaf-extracts
#16
María Del Mar Delgado-Povedano, Feliciano Priego-Capote, María Dolores Luque de Castro
Hydrolysis of oleuropein, the main phenol in olive (Olea europaea L.) leaf extracts, to oleuropein aglycon and other subsequent products in the hydrolytic pathway can be catalyzed by different enzymes. Three of the most used hydrolases were assayed to catalyze the process, and β-glucosidase from Aspergillus niger was selected. Acceleration of the enzymatic hydrolysis by ultrasound (US) was studied using a Box-Behnken design (duty cycle, amplitude, cycle time) and an oleuropein standard, and the optimum US conditions for achieving maximum yield of oleuropein aglycon were 0...
April 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27854305/piper-sarmentosum-effects-on-11%C3%AE-hydroxysteroid-dehydrogenase-type-1-enzyme-in-serum-and-bone-in-rat-model-of-glucocorticoid-induced-osteoporosis
#17
Siti Fadziyah Mohamad Asri, Elvy Suhana Mohd Ramli, Ima Nirwana Soelaiman, Muhamad Alfakry Mat Noh, Abdul Hamid Abdul Rashid, Farihah Suhaimi
Glucocorticoid-induced osteoporosis is one of the common causes of secondary osteoporosis. Piper sarmentosum (Ps) extract possesses antioxidant and anti-inflammatory activities. In this study, we determined the correlation between the effects of Ps leaf water extract with the regulation of 11β-hydroxysteroid dehydrogenase (HSD) type 1 enzyme activity in serum and bone of glucocorticoid-induced osteoporotic rats. Twenty-four Sprague-Dawley rats were grouped into following: G1: sham-operated group administered with intramuscular vehicle olive oil and vehicle normal saline orally; G2: adrenalectomized (adrx) control group given intramuscular dexamethasone (120 μg/kg/day) and vehicle normal saline orally; G3: adrx group given intramuscular dexamethasone (120 μg/kg/day) and water extract of Piper sarmentosum (125 mg/kg/day) orally...
November 15, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27847123/leaf-biochemical-responses-and-fruit-oil-quality-parameters-in-olive-plants-subjected-to-airborne-metal-pollution
#18
Radhia Fourati, Antonio Scopa, Chedlia Ben Ahmed, Ferjani Ben Abdallah, Roberto Terzano, Concetta Eliana Gattullo, Ignazio Allegretta, Fernanda Galgano, Marisa Carmela Caruso, Adriano Sofo
This study was carried out in two olive orchards (Olea europaea L., cv. Chemlali) located in a polluted area near a fertilizers factory and in a control unpolluted site, managed with similar cultivation techniques. The aim was to investigate the physiological and biochemical responses of polluted plants (PP), exposed to atmospheric metal contamination (Cd, Cu, Fe, Mn, Ni and Pb) as compared to control plants (CP). Leaves, roots and fruits of PP showed a depression of their non-enzymatic and enzymatic antioxidant defences and a disruption of their hormonal homeostasis...
February 2017: Chemosphere
https://www.readbyqxmd.com/read/27845749/unsaturated-lipids-change-in-olive-tree-drupe-and-seed-during-fruit-development-and-in-response-to-cold-stress-and-acclimation
#19
REVIEW
Simone D'Angeli, Maria Maddalena Altamura
The olive tree is a plant of economic value for the oil of its drupe. It is a cultigen complex composed of genotypes with differences in cold-hardiness. About 90% of the oil is stored in oil bodies (OBs) in the drupe during the oleogenic phase. Phenols and lipids contribute to oil quality, but the unsaturated fatty acid (FA) fraction is emerging as the most important for quality, because of the very high content in oleic acid, the presence of ω6-linoleic acid and ω3-linolenic acid, and the very low saturated FA content...
November 12, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27834936/a-novel-strain-of-tomato-leaf-curl-new-delhi-virus-has-spread-to-the-mediterranean-basin
#20
Isabel M Fortes, Sonia Sánchez-Campos, Elvira Fiallo-Olivé, Juan A Díaz-Pendón, Jesús Navas-Castillo, Enrique Moriones
Tomato leaf curl New Delhi virus (ToLCNDV) is a whitefly-transmitted bipartite begomovirus (genus Begomovirus, family Geminiviridae) that causes damage to multiple cultivated plant species mainly belonging to the Solanaceae and Cucurbitaceae families. ToLCNDV was limited to Asian countries until 2012, when it was first reported in Spain, causing severe epidemics in cucurbit crops. Here, we show that a genetically-uniform ToLCNDV population is present in Spain, compatible with a recent introduction. Analyses of ToLCNDV isolates reported from other parts of the world indicated that this virus has a highly heterogeneous population genetically with no evident geographical, plant host or year-based phylogenetic groups observed...
November 10, 2016: Viruses
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