Read by QxMD icon Read

Nitric oxide AND supplement

Walid Hamdy El-Tantawy
Lead is a toxic metal that induces a wide range of behavioral, biochemical and physiological effects in humans. Oxidative damage has been proposed as a possible mechanism involved in lead toxicity. The current study was carried out to evaluate the antioxidant activities of Spirulina supplement against lead acetate -induced hepatic injury in rats. Five groups of rats were used in this study, Control, Lead acetate (100 mg/kg), Lead acetate (100 mg/kg) + 0.5 g/kg Spirulina, Lead acetate (100 mg/kg) + 1 g/kg Spirulina and Lead acetate + 25 mg/100 g Vitamin C (reference drug)...
October 2016: Journal of Traditional and Complementary Medicine
Isaac Julius Asiedu-Gyekye, Charles Antwi-Boasiako, Seth Oppong, Stella Arthur, Joseph Edusei Sarkodie
BACKGROUND: Unsweetened natural cocoa powder (UNCP), prepared after removal of the cocoa butter, is a common beverage in Ghana. It possesses antimalarial prophylactic property and has a beneficial effect on blood components. AIM: The aim of this study was to determine whether regular dietary supplement of UNCP mitigates high-dose (HD) artemether-lumefantrine (A-L)-induced hematological disorders and to determine the effect on nitric oxide (NO) levels. MATERIALS AND METHODS: Adult male guinea pigs (300 g - 350 g) were randomly divided into 5 groups of 6 guinea pigs each...
September 2016: Journal of Intercultural Ethnopharmacology
Jun Tao
OBJECTIVE: Hyperaldosteronemia exerts adverse effects on vascular endothelium except enhanceing blood pressure; however, the impacts and molecular mechanisms of hyperaldosteronemia on endothelial progenitor cell (EPC)-mediated endothelial repair are yet to be determined. The aim of this study was to investigate the endothelial repair capacity of EPCs from hypertensive patients with primary hyperaldosteronemia (PHA). DESIGN AND METHOD: In vivo endothelial repair capacity of EPCs from PHAs (n = 20), age- and blood pressure-matched essential hypertension patients (n = 20), and age-matched healthy subjects (n = 20) was evaluated by transplantation into nude mice with carotid artery denudation injury...
September 2016: Journal of Hypertension
Arturo Figueroa, Alexei Wong, Salvador J Jaime, Joaquin U Gonzales
PURPOSE OF REVIEW: L-Citrulline, either synthetic or in watermelon, may improve vascular function through increased L-arginine bioavailability and nitric oxide synthesis. This article analyses potential vascular benefits of L-citrulline and watermelon supplementation at rest and during exercise. RECENT FINDINGS: There is clear evidence that acute L-citrulline ingestion increases plasma L-arginine, the substrate for endothelial nitric oxide synthesis. However, the subsequent acute improvement in nitric oxide production and mediated vasodilation is inconsistent, which likely explains the inability of acute L-citrulline or watermelon to improve exercise tolerance...
October 5, 2016: Current Opinion in Clinical Nutrition and Metabolic Care
Nayana Venugopal Yadav, Sadashivaiah, Breetha Ramaiyan, Pooja Acharya, Lokesh Belur, Ramaprasad Ravichandra Talahalli
Though present in small amounts, the minor constituents of dietary oils may supplement the dietary therapies for rheumatoid arthritis (RA). Hence, in the present study, we assessed the effect of minor constituents from sesame oil (SO) and rice bran oil (RBO) and their fatty acids on the severity of adjuvant-induced arthritis in experimental rats. Rats were gavaged with 1 mL of SO or RBO or groundnut oil (GNO, control) with or without its minor components for a period 15 days before and 15 days after the induction of arthritis...
October 17, 2016: Lipids
Limin Shi, Qinlu Lin, Tao Yang, Ying Nie, Xinhua Li, Bo Liu, Junjun Shen, Ying Liang, Yiping Tang, Feijun Luo
To evaluate the anti-inflammatory effect of β-glucans from Lentinus edodes, and its molecular mechanism, the dextran sulfate sodium salt (DSS) induced colitis model of mice and the LPS-stimulated RAW264.7 cell inflammation model were used in this study. 40 ICR male mice were randomly divided into 4 groups: Control, DSS (DSS treated only), DSS + low-βGs (500 mg kg(-1) d(-1)) and DSS + high-βGs (1000 mg kg(-1) d(-1)). The body weight of the mice with Lentinus edodes β-glucan supplementation increased significantly compared to the DSS group and the disease activity index (DAI) was improved in both βG-treated groups...
October 17, 2016: Food & Function
W Kyle Mitchell, Bethan E Phillips, Daniel J Wilkinson, John P Williams, Debbie Rankin, Jonathan N Lund, Kenneth Smith, Philip J Atherton
Postprandial limb blood flow and skeletal muscle microvascular perfusion reduce with aging. Here we tested the impact of providing bolus essential amino acids (EAA) in the presence and absence of the nitric oxide precursor, l-Arginine (ARG), upon skeletal muscle blood flow and anabolism in older men. Healthy young (YOUNG: 19.7 ± 0.5 y, N = 8) and older men (OLD, 70 ± 0.8 y, N = 8) received 15 g EAA or (older only) 15 g EAA +3 g ARG (OLD-ARG, 69.2 ± 1.2 y, N = 8). We quantified responses in muscle protein synthesis (MPS; incorporation of (13)C phenylalanine into myofibrillar proteins), leg and muscle microvascular blood flow (Doppler/contrast enhanced ultrasound (CEUS)) and insulin/EAA in response to EEA ± ARG...
October 6, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Christa Zollbrecht, A Erik G Persson, Jon O Lundberg, Eddie Weitzberg, Mattias Carlström
BACKGROUND: Inorganic nitrite has shown beneficial effects in cardiovascular and metabolic diseases partly via attenuation of NADPH-oxidase (NOX)-mediated oxidative stress. However, the exact mechanisms are still unclear. Here we investigated the role of S-nitrosation or altered expression of NOX subunits, and the role of xanthine oxidoreductase (XOR) in nitrite-derived nitric oxide (NO) production. METHODS: Mouse macrophages were activated with LPS in the presence or absence of nitrite...
September 28, 2016: Redox Biology
D F Dubeibe, M C Caldas-Bussiere, V L Maciel, W V Sampaio, C R Quirino, P B D Gonçalves, M P De Cesaro, M R Faes, C S Paes de Carvalho
Nitric oxide (NO) is identified as a signaling molecule involved in many cellular or physiological functions, including meiotic maturation of cattle oocytes. This study aimed to evaluate the effect of supplementation of culture medium with the L-arginine (L-arg, NO synthesis precursor) in nuclear maturation of oocytes, concentrations of nitrate/nitrite, progesterone (P4), and 17β-estradiol (E2) in the culture medium; and the cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) intracellular concentrations in the cumulus-oocyte complexes (COCs) during the first hours of maturation in the presence of hemisections (HSs) of the follicular wall (control -ve)...
September 17, 2016: Theriogenology
Mehri Jamilian, Fereshteh Bahmani, Zahra Vahedpoor, Ali Salmani, Maryam Tajabadi-Ebrahimi, Parvaneh Jafari, Shahrzad Hashemi Dizaji, Zatollah Asemi
BACKGROUND: Limited data is available on the effects of multispecies probiotic supplementation on metabolic status in pregnant women in the first half of pregnancy. The current study was carried out to determine the effects of multispecies probiotic capsule supplementation on metabolic status among pregnant women in the first half of pregnancy. METHODS: A randomized clinical trial was conducted among 60 pregnant women aged 18-37 years. The participants were randomly divided into two groups: group A (n = 30) received multispecies probiotic supplements containing three probiotic bacteria spices Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidum (2 × 109 CFU/g each) and group B (n = 30) received placebo from 9 weeks of gestation for a duration of 12 weeks...
October 2016: Archives of Iranian Medicine
K Kramkowski, A Leszczynska, K Przyborowski, B Proniewski, N Marcinczyk, U Rykaczewska, D Jarmoc, E Chabielska, S Chlopicki
In humans, short-term supplementation with nitrate is hypotensive and inhibits platelet aggregation via an nitric oxide (NO)-dependent mechanism. In the present work, we analyzed whether short-term treatment with nitrate induces antithrombotic effects in rats and mice. Arterial thrombosis was evoked electrically in a rat model in which renovascular hypertension was induced by partial ligation of the left renal artery. In mice expressing green fluorescent protein, laser-induced thrombosis was analyzed intravitally by using confocal microscope...
October 14, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
Julio A Chirinos, Scott R Akers, Lien Trieu, Harry Ischiropoulos, Paschalis-Thomas Doulias, Ali Tariq, Izzah Vassim, Maheswara R Koppula, Amer Ahmed Syed, Haideliza Soto-Calderon, Raymond R Townsend, Thomas P Cappola, Kenneth B Margulies, Payman Zamani
BACKGROUND: Stable plasma nitric oxide (NO) metabolites (NOM), composed predominantly of nitrate and nitrite, are attractive biomarkers of NO bioavailability. NOM levels integrate the influence of NO-synthase-derived NO production/metabolism, dietary intake of inorganic nitrate/nitrite, and clearance of NOM. Furthermore, nitrate and nitrite, the most abundant NOM, can be reduced to NO via the nitrate-nitrite-NO pathway. METHODS AND RESULTS: We compared serum NOM among subjects without heart failure (n=126), subjects with heart failure and preserved ejection fraction (HFpEF; n=43), and subjects with heart failure and reduced ejection fraction (HFrEF; n=32)...
October 14, 2016: Journal of the American Heart Association
Takashi Owada, Hiroyuki Yamauchi, Shu-Ichi Saitoh, Shunsuke Miura, Hirofumi Machii, Yasuchika Takeishi
BACKGROUND: Senescence is a major factor that increases oxidative stress in mitochondria, which contributes toward the pathogenesis of heart disease. However, the effect of antioxidant therapy on cardiac mitochondria in aged-cardiac performance remains elusive. OBJECTIVES: We postulated that the mitochondrial targeting of superoxide scavenging would have benefits in the aged heart. METHODS AND RESULTS: Generation of superoxide in the mitochondria and nicotinamide adenine dinucleotide phosphate oxidase activity increased in the heart of old mice compared with that in young mice...
October 12, 2016: Coronary Artery Disease
A Tassopoulos, A Chalkias, A Papalois, N Iacovidou, T Xanthos
The intestine is highly sensitive to ischemia/reperfusion (I/R) injury. Intestinal I/R may cause local tissue injury and disruption of the intestinal mucosal barrier, allowing the passage of viable bacteria and endotoxins from the gastrointestinal lumen to distant organs. This phenomenon, known as bacterial translocation (BT), may lead to systemic disorders with high morbidity and mortality. Oxidative stress mediators such as reactive oxygen species, polymorphonuclear neutrophils and nitric oxide are believed to contribute to the intestinal I/R injury...
October 13, 2016: Redox Report: Communications in Free Radical Research
Ammar W Ashor, Shakir Chowdhury, Clio Oggioni, Othman Qadir, Kirsten Brandt, Abbas Ishaq, John C Mathers, Gabriele Saretzki, Mario Siervo
BACKGROUND: Aging and obesity are associated with raised oxidative stress and a reduction of nitric oxide (NO) bioavailability, with subsequent decline in insulin sensitivity and endothelial function. Inorganic nitrate is converted into NO via a 2-step reduction process and may be an effective nutritional intervention to modify vascular and metabolic functions. OBJECTIVES: This study tested whether inorganic nitrate supplementation improved glucose disposal and attenuated the acute effects of hyperglycemia on oxidative stress, inflammation, and vascular function in young and old obese participants...
October 12, 2016: Journal of Nutrition
Suleyman Patlar, Abdulkerim Kasim Baltaci, Rasim Mogulkoc
This study was performed to explore the effect of vitamin A administration on Free Radicals production and antioxidant system activity and lactate levels in individuals exercised to exhaustion The study registered 10 healthy sedentary males their mean age was 22,85±0,26 years. The subjects were orally administrated with 300 mg vitamin A (retinol) for 4 weeks and engaged in strenuous exercise (using the Bruce protocol) once a week. Blood samples were collected from the subjects at four different times, before and after the supplementation and before and after exercise to analyze Malondialdehyde (MDA), Nitric oxide (NO), Glutathione (GSH), Glutathione peroxidase (GSH-Px), Catalase (CAT), Superoxide dismutase (SOD) levels using colorimetric ELISA test kits and plasma lactate levels using an autoanalyzer...
September 2016: Pakistan Journal of Pharmaceutical Sciences
Raquel Del Pino-García, María D Rivero-Pérez, María L González-SanJosé, Pablo Castilla-Camina, Kevin D Croft, Pilar Muñiz
Type 1 diabetes mellitus (DM) is characterized by hyperglycemia resulting from insulin deficiency. This is usually accompanied by a pro-oxidative environment, dyslipidemia and endothelial dysfunction, thus leading to several micro- and macro-vascular complications. This study investigated the potential benefits of a seasoning obtained from seedless red wine pomace (RWPS) in protecting against oxidative damage and preserving endothelial function in Type 1 DM, and the underlying mechanisms involved at the level of gene expression...
October 12, 2016: Food & Function
Fariba Samadian, Nooshin Dalili, Ali Jamalian
Hypertension is the most important, modifiable risk factor for cardiovascular disease and mortality. High salt intake may predispose children to develop hypertension later. A modest reduction in population salt intake worldwide would result in a major improvement in public health. Regarding smoking as another risk factor, there are various strategies that can be used to promote smoking cessation. Physicians are in an excellent position to help their patients stop smoking. Targeted weight loss interventions in population subgroups might be more effective for the prevention of hypertension than a general-population approach...
September 2016: Iranian Journal of Kidney Diseases
Diego Soares Carvalho, Marilia Melo Diniz, André Abour Haidar, Maria de Fátima Cavanal, Eduardo da Silva Alves, Angelo Rafael Carpinelli, Frida Zaladek Gil, Aparecida Emiko Hirata
Maternal hyperglycemia can result in defects in glucose metabolism and pancreatic β-cell function in offspring. The purpose of this study was to evaluate the impact of maternal diabetes mellitus on pancreatic islets, muscle and adipose tissue of the offspring, with or without oral l-Arginine supplementation. The induction of diabetes was performed using streptozotocin (60mg/kg). Animals were studied at 3 months of age and treatment (sucrose or l-Arginine) was administered from weaning. We observed that l-Arg improved insulin sensitivity in the offspring of diabetic mothers (DA), reflected by higher insulin-induced phosphorylation of Akt in muscle and adipose tissue...
October 4, 2016: European Journal of Pharmacology
Chun-Yan Shen, Tian-Tian Zhang, Wen-Li Zhang, Jian-Guo Jiang
Hibiscus sabdariffa Linn., belonging to the family of Malvaceae, is considered to be a plant with health care applications in China. The main purpose of this study was to analyze the composition of its essential oil and assess its potential therapeutic effect on anti-inflammatory activity. A water steam distillation method was used to extract the essential oil from H. Sabdariffa. The essential oil components were determined by gas chromatography/mass spectrometry (GC-MS) analysis and a total of 18 volatile constituents were identified, the majority of which were fatty acids and ester compounds...
October 12, 2016: Food & Function
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"