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https://www.readbyqxmd.com/read/28100284/role-of-flavonoids-and-nitrates-in-cardiovascular-health
#1
Julie A Lovegrove, Alex Stainer, Ditte A Hobbs
CVD remain the leading cause of death globally. Effective dietary strategies for their reduction are of high priority. Increasing evidence suggests that phytochemicals, particularly dietary flavonoids and nitrates, are key modulators of CVD risk reduction through impact on multiple risk factors. The aim of this review is to explore the evidence for the impact of flavonoid- and nitrate-rich foods and supplements on CVD risk, with specific reference to their importance as mediators of vascular health and platelet function...
January 19, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28098405/shielding-engineered-islets-with-mesenchymal-stem-cells-enhance-survival-under-hypoxia
#2
Bhawna Chandravanshi, Ramesh Ramchandra Bhonde
In the present study we focused on the improvisation of islet survival in hypoxia.The Islet like cell aggregates (ICAs) derived from wharton's jelly mesenchymal stem cells (WJ MSC) were cultured with and without WJ MSC for 48h in hypoxia and normoxia and tested for their direct trophic effect on β cell survival. The WJ MSCs themselves secreted insulin upon glucose challenge and expressed the pancreatic markers at both transcription and translational level (C-peptide, Insulin,Glucagon and Glut 2). Direct contact of MSCs with ICAs facilitated highest viability under hypoxia as evidenced by fluorescein diacetate/propidium iodide and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT) assay...
January 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28094275/sulfated-cyclocarya-paliurus-polysaccharides-markedly-attenuates-inflammation-and-oxidative-damage-in-lipopolysaccharide-treated-macrophage-cells-and-mice
#3
Zhijun Wang, Jianhua Xie, Yujiao Yang, Fan Zhang, Shengnan Wang, Ting Wu, Mingyue Shen, Mingyong Xie
Natural polysaccharides and their modified derivatives are crucial supplements to the prevention of inflammation. This study aimed to evaluate the effect of sulfated modification on the anti-inflammatory and anti-oxidative activities of Cyclocarya paliurus polysaccharides (CP). A sulfated CP, S-CP1-4 was obtained using chlorosulfonic acid-pyridine method. The chemical components and FT-IR spectrum confirmed that sulfated group was synthesized to the polysaccharide chains successfully. S-CP1-4 was found to inhibit nitric oxide production, phagocytic activity and the release of interleukin (IL)-6 and IL-1β in lipopolysaccharide-treated macrophage cells, RAW 264...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090634/dietary-interventions-for-fetal-growth-restriction-therapeutic-potential-of-dietary-nitrate-supplementation-in-pregnancy
#4
Elizabeth Cottrell, Teresa Tropea, Laura Ormesher, Susan Greenwood, Mark Wareing, Edward Johnstone, Jenny Myers, Colin Sibley
Fetal growth restriction (FGR) affects around 5% of pregnancies and is associated with significant short- and long-term adverse outcomes. A number of factors can increase the risk of FGR, one of which is poor maternal diet. In terms of pathology, both clinically and in many experimental models of FGR, impaired uteroplacental vascular function is implicated, leading to a reduction in the delivery of oxygen and nutrients to the developing fetus. Whilst mechanisms underpinning impaired uteroplacental vascular function are not fully understood, interventions aimed at enhancing nitric oxide (NO) bioavailability remain a key area of interest in obstetric research...
January 16, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28087899/increasing-dietary-nitrate-has-no-effect-on-cancellous-bone-loss-or-fecal-microbiome-in-ovariectomized-rats
#5
Melissa N Conley, Cooper Roberts, Thomas J Sharpton, Urszula T Iwaniec, Norman Hord
Studies suggest diets rich in fruit and vegetables reduce bone loss, although the specific compounds responsible are unknown. Substrates for endogenous nitric oxide (NO) production, including organic nitrates and dietary nitrate, may support NO production in age-related conditions, including osteoporosis. We investigated the capability of dietary nitrate to improve NO bioavailability, reduce bone turnover and loss. Six-month-old Sprague Dawley rats [30 ovariectomized (OVX) and 10 sham-operated (sham)] were randomized into 3 groups: (1) vehicle (water) control, (2) low-dose nitrate (LDN, 0...
January 13, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28078249/effects-of-urtica-dioica-supplementation-on-blood-lipids-hepatic-enzymes-and-nitric-oxide-levels-in-type-2-diabetic-patients-a-double-blind-randomized-clinical-trial
#6
Alidad Amiri Behzadi, Hamid Kalalian-Moghaddam, Amir Hossein Ahmadi
OBJECTIVE: Oxidative stress plays an important role in the development of diabetic complications including metabolic abnormality-induced diabetic micro-vascular and macro-vascular complications. Urtica dioica L. (U. dioica) has been traditionally used in Iranian medicine as an herbal remedy for hypoglycemic or due to its anti-inflammatory properties. The aim of the present study was to evaluate the effects of hydro-alcoholic extract of U. dioica on blood lipids, hepatic enzymes and nitric oxide levels in patients with type 2 diabetes mellitus...
November 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/28070018/curcumin-supplementation-improves-vascular-endothelial-function-in-healthy-middle-aged-and-older-adults-by-increasing-nitric-oxide-bioavailability-and-reducing-oxidative-stress
#7
Jessica R Santos-Parker, Talia R Strahler, Candace J Bassett, Nina Z Bispham, Michel B Chonchol, Douglas R Seals
We hypothesized that curcumin would improve resistance and conduit artery endothelial function and large elastic artery stiffness in healthy middle-aged and older adults. Thirty-nine healthy men and postmenopausal women (45-74 yrs) were randomized to 12 weeks of curcumin (2000 mg/day Longvida®; n=20) or placebo (n=19) supplementation. Forearm blood flow response to acetylcholine infusions (FBFACh; resistance artery endothelial function) increased 37% following curcumin supplementation (107±13 vs. 84±11 AUC at baseline, P=0...
January 3, 2017: Aging
https://www.readbyqxmd.com/read/28067837/kaempferol-and-chrysin-synergies-to-improve-septic-mice-survival
#8
Omar A Harasstani, Chau Ling Tham, Daud A Israf
Previously, we reported the role of synergy between two flavonoids-namely, chrysin and kaempferol-in inhibiting the secretion of a few major proinflammatory mediators such as tumor necrosis factor-alpha (TNF-α), prostaglandin E₂ (PGE₂), and nitric oxide (NO) from lipopolysaccharide (LPS)-induced RAW 264.7 cells. The present study aims to evaluate the effects of this combination on a murine model of polymicrobial sepsis induced by cecal ligation and puncture (CLP). Severe sepsis was induced in male ICR mice (n = 7) via the CLP procedure...
January 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28067808/effects-of-beetroot-juice-supplementation-on-cardiorespiratory-endurance-in-athletes-a-systematic-review
#9
REVIEW
Raúl Domínguez, Eduardo Cuenca, José Luis Maté-Muñoz, Pablo García-Fernández, Noemí Serra-Paya, María Carmen Lozano Estevan, Pablo Veiga Herreros, Manuel Vicente Garnacho-Castaño
Athletes use nutritional supplementation to enhance the effects of training and achieve improvements in their athletic performance. Beetroot juice increases levels of nitric oxide (NO), which serves multiple functions related to increased blood flow, gas exchange, mitochondrial biogenesis and efficiency, and strengthening of muscle contraction. These biomarker improvements indicate that supplementation with beetroot juice could have ergogenic effects on cardiorespiratory endurance that would benefit athletic performance...
January 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28067284/oleanolic-acid-ameliorates-high-glucose-induced-endothelial-dysfunction-via-ppar%C3%AE-activation
#10
Zihui Zhang, Manli Jiang, Xinya Xie, Haixia Yang, Xinfeng Wang, Lei Xiao, Nanping Wang
Oleanolic acid (3β-hydroxyolean-12-en-28-oic acid, OA) is a pentacyclic triterpenes widely distributed in food, medicinal plants and nutritional supplements. OA exhibits various pharmacological properties, such as hepatoprotective and anti-tumor effects. In this study, we analyzed the effect of OA on endothelial dysfunction induced by high glucose in human vascular endothelial cells (ECs). Western blotting showed that OA attenuated high glucose-reduced nitric production oxide (NO) as well as Akt-Ser(473) and eNOS-Ser(1177) phosphorylation in cultured human umbilical vein ECs (HUVECs)...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28063941/nitro-oleic-acid-regulates-growth-factor-induced-differentiation-of-bone-marrow-derived-macrophages
#11
Hana Verescakova, Gabriela Ambrozova, Lukas Kubala, Tomas Perecko, Adolf Koudelka, Ondrej Vasicek, Tanja K Rudolph, Anna Klinke, Steven R Woodcock, Bruce A Freeman, Michaela Pekarova
Many diseases accompanied by chronic inflammation are connected with dysregulated activation of macrophage subpopulations. Recently, we reported that nitro-fatty acids (NO2-FAs), products of metabolic and inflammatory reactions of nitric oxide and nitrite, modulate macrophage and other immune cell functions. Bone marrow cell suspensions were isolated from mice and supplemented with macrophage colony-stimulating factor (M-CSF) or granulocyte-macrophage colony-stimulating factor (GM-CSF) in combination with NO2-OA for different times...
January 4, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28054265/assessment-of-arsenic-trioxide-in-the-heart-of-gallus-gallus-alterations-of-oxidative-damage-parameters-inflammatory-cytokines-and-cardiac-enzymes
#12
Si-Wen Li, Xiao Sun, Ying He, Ying Guo, Hong-Jing Zhao, Zhi-Jun Hou, Ming-Wei Xing
The aim of this study was to assess the effects of arsenic trioxide (As2O3) in the chicken heart, and 72 1-day-old male Hy-line chickens were fed either a commercial diet (C group) or an arsenic supplement diet containing 7.5 mg/kg (L group), 15 mg/kg (M group), or 30 mg/kg (H group) As2O3 for 90 days. The results showed that exposure to As2O3 merely lowered (P < 0.05) the activities of catalase (CAT) and glutathione peroxidase (GSH-Px) in M and H groups at 90 days, significantly downregulated the inhibition ability of hydroxyl radicals (OH·), and upregulated (P < 0...
January 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28053897/effects-of-a-supplement-combining-pycnogenol-%C3%A2-and-l-arginine-aspartate-on-lower-urinary-dysfunction-compared-with-saw-palmetto-extract
#13
Hiroshi Yagi, Ryo Sato, Kojiro Nishio, Gaku Arai, Shigehiro Soh, Hiroshi Okada
OBJECTIVES: Lower urinary tract symptoms (LUTS) and sexual dysfunction (SDys) are common problems that affect quality of life (QOL) in elderly men. In addition to prescribed drugs, many over-the-counter medications including supplements are used to treat QOL diseases. Phosphodiesterase inhibitors are reported to be effective for both LUTS and SDys by increasing nitric oxide levels. French maritime pine bark extract Pycnogenol(®), which is a potent nitric oxide donor, is reported to be effective for SDys...
January 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28050798/effects-of-long-term-vitamin-d-supplementation-on-regression-and-metabolic-status-of-cervical-intraepithelial-neoplasia-a-randomized-double-blind-placebo-controlled-trial
#14
Zahra Vahedpoor, Mehri Jamilian, Fereshteh Bahmani, Esmat Aghadavod, Maryam Karamali, Maryam Kashanian, Zatollah Asemi
We are not aware of any study examining the effects of long term vitamin D administration on regression and metabolic status of patients with cervical intraepithelial neoplasia grade 1 (CIN1). This study was performed to evaluate the effects of long-term vitamin D administration on regression and metabolic status of patients with CIN1. This randomized, double-blind, placebo-controlled trial was performed among 58 women diagnosed with CIN1. CIN1 diagnosis was performed based on specific diagnostic procedures of biopsy, pathological diagnosis, and colposcopy...
January 3, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28035599/functional-characterization-of-the-cuti-gene-for-the-transcription-of-carbon-monoxide-dehydrogenase-genes-in-mycobacterium-sp-strain-jc1-dsm-3803
#15
Jae Ho Lee, Sae Woong Park, Young Min Kim, Jeong-Il Oh
Carbon monoxide dehydrogenase (CO-DH) in Mycobacterium sp. strain JC1 is a key enzyme for the carboxydotrophic growth, when carbon monoxide (CO) is supplied as a sole source of carbon and energy. This enzyme is also known to act as nitric oxide dehydrogenase (NO-DH) for the detoxification of NO. Several accessory genes such as cutD, cutE, cutF, cutG, cutH, and cutI, are clustered together with two copies of the CO-DH structural genes (cutB1C1A1 and cutB2C2A2) in Mycobacterium sp. strain JC1 and are well conserved in carboxydotrophic mycobacteria...
January 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28032480/fish-oil-and-wheat-germ-oil-supplementation-modulates-brain-injury-in-streptozotocin-induced-diabetic-rats
#16
Naglaa Khedr
BACKGROUND: Uncontrolled diabetes mellitus (DM) results in neuronal damage caused by increased intracellular glucose. The addition of natural products as complementary therapy can reduce neuronal complications. The main objectives of this study was to determine whether fish oil (FO) and wheat germ oil (WGO) supplementation protect rat brains in streptozotocin (STZ)-induced diabetic rats via estimating lipid peroxidation, inflammatory and anti-oxidant status of brain. METHODS: Diabetes was induced in male Wistar rats by single i...
December 29, 2016: Journal of Diabetes
https://www.readbyqxmd.com/read/28025449/metformin-enhances-osteogenesis-and-suppresses-adipogenesis-of-human-chorionic-villous-mesenchymal-stem-cells
#17
Qiaoli Gu, Yanzheng Gu, Huilin Yang, Qin Shi
Metformin is the first-line anti-hyperglycemic drugs commonly used to treat type 2 diabetes. Recent studies have shown that metformin can enhance bone formation through induction of endothelial nitric oxide synthase (eNOS). Human chorionic villous mesenchymal stem cells (CV-MSCs) are promising candidates for regenerative medicine. The present study aimed to investigate the effects of metformin on the osteogenic and adipocytic differentiation of human CV-MSCs, and to elucidate the underlying mechanism. CV-MSCs, prepared from human term placentae, were cultured with different concentrations of metformin...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28011377/possible-involvement-of-nrf2-and-ppar%C3%AE-up-regulation-in-the-protective-effect-of-umbelliferone-against-cyclophosphamide-induced-hepatotoxicity
#18
Ayman M Mahmoud, Mousa O Germoush, Mohammed F Alotaibi, Omnia E Hussein
Umbelliferone (UMB) is a coumarin derivative with promising hepatoprotective effects. In this study, we examined the possible protective effects of UMB against cyclophosphamide (CP)-induced hepatotoxicity, addressing the question of the possible role of nuclear factor erythroid 2-related factor 2 (Nrf2) and peroxisome proliferator activated receptor gamma (PPARγ). Wistar rats were orally administered UMB at doses 50 and 100mg/kg two weeks prior to CP injection. Five days after CP administration, the rats were sacrificed and samples were collected for analyses...
December 20, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28006731/selenite-modulates-the-level-of-phenolics-and-nutrient-element-to-alleviate-the-toxicity-of-arsenite-in-rice-oryza-sativa-l
#19
Reshu Chauhan, Surabhi Awasthi, Preeti Tripathi, Seema Mishra, Sanjay Dwivedi, Abhishek Niranjan, Shekhar Mallick, Pratibha Tripathi, Veena Pande, Rudra Deo Tripathi
Arsenic (As) contamination of paddy rice is a serious threat all over the world particularly in South East Asia. Selenium (Se) plays important role in protection of plants against various abiotic stresses including heavy metals. Moreover, arsenite (AsIII) and selenite (SeIV) can be biologically antagonistic due to similar electronic configuration and sharing the common transporter for their uptake in plant. In the present study, the response of oxidative stress, phenolic compounds and nutrient elements was analyzed to investigate Se mediated As tolerance in rice seedlings during AsIII and SeIV exposure in hydroponics...
December 19, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27989792/enterosalivary-nitrate-metabolism-and-the-microbiome-intersection-of-microbial-metabolism-nitric-oxide-and-diet-in-cardiac-and-pulmonary-vascular-health
#20
REVIEW
Carl D Koch, Mark T Gladwin, Bruce A Freeman, Jon O Lundberg, Eddie Weitzberg, Alison Morris
Recent insights into the bioactivation and signaling actions of inorganic, dietary nitrate and nitrite now suggest a critical role for the microbiome in the development of cardiac and pulmonary vascular diseases. Once thought to be the inert, end-products of endothelial-derived nitric oxide (NO) heme-oxidation, nitrate and nitrite are now considered major sources of exogenous NO that exhibit enhanced vasoactive signaling activity under conditions of hypoxia and stress. The bioavailability of nitrate and nitrite depend on the enzymatic reduction of nitrate to nitrite by a unique set of bacterial nitrate reductase enzymes possessed by specific bacterial populations in the mammalian mouth and gut...
December 16, 2016: Free Radical Biology & Medicine
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