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Nitrites (0):
Recent article
Nitrites
Abstract
We will, therefore, describe different species of fish, amphibian, and reptile that are well-known examples of cardiac tolerance to O(2) deficiency. We will then focus on a subset of Antarctic fishes which have lost physiological transporters of O(2) such as hemoglobin and myoglobin (Mb) and that ha...
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PMID: 20518703
PDF is available here.
PDF is available here.
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Abstract
We investigated whether or not long-term nitrite therapy is beneficial in ischemic brains. Sodium nitrite (1-100 μg/kg ip) or saline were administered to rats subjected to focal I/R injury for 7 days beginning 24h after I/R. Behavioral tests for 5 weeks revealed better functional recovery in the hi...
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PMID: 21040706
PDF is available here.
PDF is available here.
Journal of Trauma (69)6 2010
Abstract
We conducted a prospective observational study including 96 patients with septic. Blood samples were collected immediately after study inclusion and 24 hours after. We then determined plasma levels of thiobarbituric acid reactive species, protein carbonyls, SOD, and catalase activities.
Plasma carbo...
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PMID: 20571452
PDF is available here.
PDF is available here.
Anesthesiology (113)6 2010
Abstract
We present an overview of this field of research with emphasis on relevance in anesthesiology and intensive care....
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PMID: 21045638
PDF is available here.
PDF is available here.
Abstract
The production of 20-hydroxyeicosatetraenoic acid (20-HETE) in the kidney is thought to be involved in the control of renal vascular tone and tubular sodium and chloride reabsorption. Cytochrome (Cyp) P-450 enzymes of the Cyp4a family in the mouse, namely 4a10, -12 and 14, are involv...
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PMID: 20943934
PDF is available here.
PDF is available here.
Clinica Chimica Acta (411)19-20 2010
Abstract
Our findings show higher ADMA and lower nitrite levels in preeclamptic compared with healthy pregnant, and the concentrations of these biomarkers are inversely associated. While ethnicity affected ADMA concentrations, no such effect was found with respect to nitrite levels. These results may have im...
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PMID: 20570587
PDF is available here.
PDF is available here.
Abstract
The degradation of 17beta-oestradiol (E2) and 17alpha-ethinyloestradiol (EE2) was investigated in an aerobic activated sludge system fed with synthetic wastewater. The effect of different solid residence times (SRTs) and nitrification inhibitors, such as allylthiourea (ATU), was studied in order to...
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PMID: 21046956
PDF is available here.
PDF is available here.
Abstract
We measured the acute effects of this supplement on blood nitrate/nitrite and hemodynamic variables. Ten resistance trained men (26 ± 4 years old; 8 ± 6 years of resistance exercise training) reported to the laboratory in random order after a 10-hour overnight fast on 2 occasions separated by 1 we...
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PMID: 20885188
PDF is available here.
PDF is available here.
Brain research (1352) 2010
Abstract
We investigated the effect of early NBO treatment on neuronal NO production. Male Sprague-Dawley rats were given normoxia (30% O(2)) or NBO (95% O(2)) during 10, 30, 60 or 90min filament occlusion of the middle cerebral artery. NO(x)(-) (nitrite plus nitrate) and 3-nitrotyrosine were measured in the...
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PMID: 20633543
PDF is available here.
PDF is available here.
Brain research (1352) 2010
Abstract
In the present study, effect of curcumin (10 and 20mg/kg), an active constituent of Curcuma longa was evaluated for its antianxiety-like activity in mice subjected to immobilization-induced restraint stress for 6h. The effect on anxiety was assessed by employing elevated plus maze, open field test,...
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PMID: 20633542
PDF is available here.
PDF is available here.
Abstract
The city of Santander ceased the discharge of sewage effluents into the bay of Santander in June, 2001 and began discharging at a site 2.4 km offshore in the nearby coastal area (Virgen del Mar, Bay of Biscay) at a water depth of about 40 m. The present study investigates the effects of the new outf...
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PMID: 20652176
PDF is available here.
PDF is available here.
Abstract
Previous studies indicate that oxidative stress is increased following intake of a high-fat meal, mediated in large part by the triglyceride (TG) response to feeding as well as fasting oxidative stress values. It has been suggested that women may process TG more efficiently after high-fat meals, bas...
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PMID: 20869634
PDF is available here.
PDF is available here.
Abstract
I intermediate. The sterically restrictive distal pocket probably facilitates the rapid rebound of ClO(-) with compound I forming the Cl(-) and O(2) products. Common to other heme enzymes, Cld is inactivated after a finite number of turnovers, potentially via the observed formation of an off-pathway...
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PMID: 20386942
PDF is available here.
PDF is available here.
Hypertension Research (33)8 2010
Abstract
We compared high-intensity interval (aerobic interval training, AIT) and moderate-intensity continuous exercise training (CMT) with regard to hemodynamic, metabolic and hormonal variables in FH+ subjects. Forty-four healthy FH+ women (25.0+/-4.4 years) randomized to control (ConFH+) or to a three ti...
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PMID: 20448634
PDF is available here.
PDF is available here.
Microcirculation (17)6 2010
Abstract
I and interleukin-1beta levels.
These results indicate Ncx-6550 as a novel therapeutic agent with a potential for the treatment of myocardial infarct....
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PMID: 20690980
PDF is available here.
PDF is available here.
Analyst (Cambridge UK) (135)8 2010
Abstract
Nanostructured porous cuprite (NPC) films were first prepared by a facile wet chemical process. The resulted cuprite film was then characterized by Raman spectrum, scanning electron microscopy (SEM), transmission electron microscopy (TEM), as well as static contact angle experiment. Electrochemical...
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PMID: 20532351
PDF is available here.
PDF is available here.
Abstract
Rapid diagnostic tests can screen out negative samples and can save valuable time and money. The study was conducted to assess the usefulness of leukocyte esterase, nitrate reductase and quantitative microscopic unspun urine wet mount examination in rapidly diagnosing urinary tract infections (UTI)....
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PMID: 21189695
PDF is available here.
PDF is available here.
Abstract
In many nitrate (NO(3)(-)) source partitioning studies, the delta(18)O value for NO(3)(-) produced from nitrification is often assumed to reflect the isotopic compositions of environmental water (H(2)O) and molecular oxygen (O(2)) in a 2:1 ratio. Most studies that have measured or observed this micr...
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PMID: 20550183
PDF is available here.
PDF is available here.
Abstract
Our work is the first report of a direct link between a sedimentological parameter and the composition and distribution of the sediment Beta-AOB and indicates the potential for using the Beta-AOB community composition in general and individual isolates or environmental clones in the Nitrosomonas oli...
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PMID: 20511433
PDF is available here.
PDF is available here.
Abstract
We succeeded in obtaining an enrichment culture of Nitrospira derived from the mesohyl of the marine sponge Aplysina aerophoba using a traditional cultivation approach. Electron microscopy gave first evidence of the shape and ultrastructure of this novel marine Nitrospira-like bacterium (culture Aa0...
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PMID: 20511427
PDF is available here.
PDF is available here.
Abstract
We compared the denitrification activity of strain TR2 with those of various denitrifiers in an artificial medium that was derived from piggery wastewater. Strain TR2 exhibited strong denitrification activity and produced little N(2)O under all conditions tested. Its growth rate under denitrifying c...
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PMID: 20495048
PDF is available here.
PDF is available here.
Abstract
The sources of high in-stream nitrite (NO2(-)) concentrations were investigated in two major streams located in an intensively cropped watershed in Quebec, Canada. Nitrogen retention was determined to evaluate the dynamics in relation to nitrogen transport along both stream branches during summer-lo...
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PMID: 20669724
PDF is available here.
PDF is available here.
Abstract
Heterogeneous chemical reactions are complicated, especially in the case of competitive reactions. The aim of this study was to investigate the elimination of nitrite (NO2(-)) by applying a metallic reduction using zero-valent zinc (Zn0). The effect of pH, stirring, and metal shape (powder and chips...
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PMID: 20669727
PDF is available here.
PDF is available here.
Abstract
The effects of nitrate on the stability of reduced, immobilized uranium were evaluated in field experiments at a U.S. Department of Energy site in Oak Ridge, TN. Nitrate (2.0 mM) was injected into a reduced region of the subsurface containing high levels of previously immobilized U(IV). The nitrate...
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PMID: 20527772
PDF is available here.
PDF is available here.
Meat Science (85)3 2010
Abstract
The objective of this work was to study the effect of adding orange dietary fibre (1%), rosemary essential oil (0.02%) or thyme essential oil (0.02%) and the storage conditions on the quality characteristics and the shelf-life of mortadella, a bologna-type sausage. The moisture, fat, ash content and...
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PMID: 20416839
PDF is available here.
PDF is available here.
Studying the time scale dependence of environmental variables predictability using fractal analysis.
Abstract
We analyzed a few years records of half-hourly air pollution and meteorological time series from which the trivial seasonal and daily cycles were removed. We encountered a general trend of decreasing Hurst values from about 1.4 (good autocorrelation and predictability), in the sub-daily time scale t...
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PMID: 20465249
PDF is available here.
PDF is available here.
Abstract
Modern technologies use NO(2) to promote low-temperature soot oxidation for diesel particulate filter regeneration. In this study, the online aerosol technique of high-temperature oxidation tandem differential mobility analysis is used to study kinetics of soot oxidation by NO(2). Soot particles are...
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PMID: 20491473
PDF is available here.
PDF is available here.
Abstract
The hydrotalcite-based Mn(x)Mg(3-x)AlO catalysts with different Mn:Mg atomic ratios were synthesized by coprecipitation, and employed for soot combustion, NOx storage and simultaneous soot-NO(x) removal. It is shown that with the increase of Mn content in the hydrotalcite-based Mn(x)Mg(3-x)AlO catal...
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PMID: 20491437
PDF is available here.
PDF is available here.
Journal of Hazardous Materials (178)1-3 2010
Abstract
A set of anaerobic-anoxic-aerobic (A(2)/O) bioreactor system was designed and used to treat domestic wastewater mixed with landfill leachate in Datansha Sewage Treatment Plant in Guangzhou, south China. The optimal mixing proportion of combined treatment of domestic wastewater with landfill leachate...
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PMID: 20133053
PDF is available here.
PDF is available here.
Journal of Hazardous Materials (178)1-3 2010
Alternative solutions for the bio-denitrification of landfill leachates using pine bark and compost.
Abstract
Nitrified leachate may still require an additional bio-denitrification step, which occurs with the addition of often-expensive chemicals as carbon source. This study explores the applicability of low-cost carbon sources such as garden refuse compost and pine bark for the denitrification of high stre...
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PMID: 20122792
PDF is available here.
PDF is available here.
Abstract
The strain was identified as Alcaligenes genus, and named as Alcaligenes sp. HN-S. Our research confirmed that the Alcaligenes sp. HN-S had significant advantages over heterotrophic nitrifiers that were screened previously with aspect of ammonia nitrogen removal rate. The research of its nitrificati...
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PMID: 20687347
PDF is available here.
PDF is available here.
Abstract
We demonstrate the function of thread-based microfluidic devices in the context of five different colorimetric assays: detection of ketones, nitrite, protein, and glucose in artificial urine, and detection of alkaline phosphatase in artificial plasma....
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PMID: 20496913
PDF is available here.
PDF is available here.
Bioresource Technology (101)11 2010
Denitrifying dephosphatation over nitrite: effects of nitrite concentration, organic carbon, and pH.
Abstract
The effects of nitrite concentration, organic carbon and pH on denitrifying dephosphatation over nitrite were studied with batch tests. The results showed that anoxic initial phosphate uptake rate increased as nitrite concentration increased. For an initial phosphate of 8.5mgPL(-1) and an initial CO...
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PMID: 20110164
PDF is available here.
PDF is available here.
Cephalalgia (30)6 2010
Abstract
We collected CSF from 14 episodic CH patients. Lumbar puncture (LP) was performed at two occasions: in active period between headache attacks, and in remission, not earlier than three weeks after the last CH attack. Eleven healthy volunteers served as controls. To estimate NO production, we determin...
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PMID: 20511209
PDF is available here.
PDF is available here.
Abstract
Parkinson's disease (PD) is a progressive neurological disorder characterized by a selective loss of dopamine (DA) neurons in the substantia nigra (SN). Although current therapy can control symptoms of this disorder, there is no effective therapy available to halt its progression. Recently, neuroinf...
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PMID: 20190013
PDF is available here.
PDF is available here.
Abstract
We analyze the expression of IGF-1 and IL-4 from a single plasmid vector, where each gene is expressed through an independent promoter and enhancer sequence. Regenerative and anti-inflammatory effects of IGF-1 alone and of both IGF-1 and IL-4 were analyzed in an in vitro chondrocyte inflammatory mod...
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PMID: 20188584
PDF is available here.
PDF is available here.
Inflammation Research (59)6 2010
Abstract
We showed that SF, and also LPS by itself, are able to activate the cell's defence against oxidative and electrophilic stress. We conclude that SF could be a candidate agent for anti-inflammatory treatment of the central nervous system....
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PMID: 19924513
PDF is available here.
PDF is available here.
Abstract
Reaction of 3-5 carbon sugars, glycolaldehyde, and alpha-ketoaldehydes with nitrite under mild anaerobic aqueous conditions yielded ammonia, an essential substrate for the synthesis of nitrogen-containing molecules during abiogenesis. Under the same conditions, ammonia synthesis was not driven by fo...
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PMID: 20213158
PDF is available here.
PDF is available here.
Abstract
Inorganic nitrate (NO3(-)) and nitrite (NO2(-)) are part of the nitrogen cycle in nature. To the general public these anions are generally known as undesired residues in the food chain with potentially carcinogenic effects. Among biologists, these inorganic anions have merely been viewed as inert ox...
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PMID: 20494108
PDF is available here.
PDF is available here.
Abstract
We propose the construction of a new non-mediated electrochemical biosensor for nitrite determination in complex samples. The device is based on the stable and selective cytochrome c nitrite reductase (ccNiR) from Desulfovibrio desulfuricans, which has both high turnover and heterogeneous electron t...
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PMID: 20188536
PDF is available here.
PDF is available here.
Abstract
These results demonstrate that the electrospun Hb microbelts can significantly enhance the direct electrochemistry of Hb and has great potential application in mediator-free biosensor applications.
2010 Elsevier B.V. All rights reserved....
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PMID: 20167467
PDF is available here.
PDF is available here.
Analytica Chimica Acta (667)1-2 2010
Abstract
In this paper, DNA functionalized single-wall carbon nanotubes/Cu(2+) (DNA-CNTs/Cu(2+)) complex was one-step electrodeposited onto the glassy carbon electrode (GCE), which fabricated a DNA-CNTs/Cu(2+)/GCE sensor to detect nitrite. Cyclic voltammogram of DNA-CNTs/Cu(2+)/GCE showed a pair of well-defi...
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PMID: 20441866
PDF is available here.
PDF is available here.
Analytica Chimica Acta (667)1-2 2010
Abstract
We developed the appropriate numerical analysis tools and investigated a number of superoxide sources and methods for the purposes of calibrating O(2)(-) concentrations and/or fluxes specifically in seawater. We found the superoxide thermal source bis(4-carboxybenzyl)hyponitrite (SOTS)-1 easy to emp...
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PMID: 20441861
PDF is available here.
PDF is available here.
Abstract
A method for the electrical contacting of redox enzymes that obtain oxidizing or reducing equivalents from small electron-transfer proteins is demonstrated. The electrochemical contacting of redox enzymes through their immobilization onto electrode supports offers great potential for technological a...
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PMID: 20397667
PDF is available here.
PDF is available here.
Abstract
An accurate, fast, easily applicable, and cost-effective method for the determination of nitrate and nitrite was developed. This method was much more reliable than the cadmium column reduction method, which is a tedious and time-consuming procedure and not easily applicable. The principle of the met...
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PMID: 20384339
PDF is available here.
PDF is available here.
Journal of Physical Chemistry B (114)16 2010
Abstract
We report the first experimental evidence, based on resonance Raman spectroscopy, that nitrite binding to the enzyme from D. vulgaris induces a transition from the high spin to the low spin configuration in the catalytic heme, thereby favoring the heterolytic route....
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PMID: 20369861
PDF is available here.
PDF is available here.
Abstract
Fas-FasL interaction in the cornea balances the host innate immune response to improve disease outcome by promoting earlier apoptosis and regulating proinflammatory cytokines/chemokines and nitric oxide (nitrite) production. Dysregulation of this interaction contributes to bystander tissue damage, e...
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PMID: 20019368
PDF is available here.
PDF is available here.
Water Research (44)10 2010
Abstract
The effect of dissolved oxygen on the photodecomposition of monochloramine (7.5 < pH < 10) and dichloramine (pH = 3.7 +/- 0.2) at 253.7 nm has been investigated. The kinetic study shows that the rate of photodecomposition of monochloramine is about two times faster in the absence of oxygen than in t...
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PMID: 20362321
PDF is available here.
PDF is available here.
Abstract
We are reporting the presence of nitrite as an aerosol in ambient environment....
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PMID: 21047014
PDF is available here.
PDF is available here.
Abstract
In recent years, conjugated polyelectrolytes (CPEs) that feature good water-solubility have drawn great attention as optical transducers in high sensitive bio- and chemo-sensors due to their predominant optical/electronic properties and remarkable signal amplification. Herein, a sensitive and select...
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PMID: 20188893
PDF is available here.
PDF is available here.
Abstract
Since hydroxylamine didn't react with nitrite in uninoculated control culture, these two compounds were chemically stable. Both of them decreased with time in anammox enrichment inoculated cultures, in which ammonia as intermediate product would be produced and converted with the maximum concentrati...
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PMID: 20560351
PDF is available here.
PDF is available here.
Abstract
An abrupt rise in circulating lipids, oxidative stress, and inflammatory biomarkers is a common finding after ingestion of a high-fat meal. Estradiol, typically provided via hormone replacement therapy to postmenopausal women, has been reported to possess lipidemic, antioxidant, and antiinflammatory...
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PMID: 20435279
PDF is available here.
PDF is available here.
Abstract
Multivariable-adjustment serum NO(x) values were compared between groups by analysis of covariance. Serum NO(x) was significantly higher (p < 0.05) in the active smokers [28.9 micromol/L (95% CI 26.2-32.0)] compared to nonsmokers [24.1 micromol/L (95% CI 21.8-26.7)]. A positive correlation was found...
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PMID: 20156035
PDF is available here.
PDF is available here.
Abstract
We examined whether root mitochondria and mitochondrial membranes produce nitric oxide (NO) exclusively by reduction of nitrite or also via a nitric oxide synthase (NOS), and to what extent direct NO measurements could become undetectable due to NO oxidation. Chemiluminescence detection of NO in the...
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PMID: 20185408
PDF is available here.
PDF is available here.
Abstract
We studied the effects of Abeta(42) on cultures of human astrocytes in the presence or absence of the following pro-oxidant agents: buthionine sulfoximine (BSO), a glutathione synthesis inhibitor, and FeSO(4), which liberates redox active iron. Pro-oxidant conditions potentiated Abeta toxicity, as s...
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PMID: 20164580
PDF is available here.
PDF is available here.
Bioresource Technology (101)7 2010
Abstract
The effects of manure age on emission of H(2)S and required level of nitrite or molybdate to control these emissions were investigated in the present work. Molybdate mediated control of H(2)S emission was also studied in semi-pilot scale open systems, and in specifically designed chambers which simu...
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PMID: 19959356
PDF is available here.
PDF is available here.
Journal of Perinatology (30)4 2010
Abstract
OBJECTIVE: Inhaled nitric oxide (iNO) is a potential new therapy for prevention of bronchopulmonary dysplasia and brain injury in premature infants. This study examined dose-related effects of iNO on NO metabolites as evidence of NO delivery. STUDY DESIGN: A subset of 102 premature infants in the NO...
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PMID: 19812581
PDF is available here.
PDF is available here.
Nitric Oxide (22)3 2010
Abstract
We showed that nitric oxide produced via red wine- and ascorbate-dependent reduction of nitrite diffuses through the rat stomach, inducing smooth muscle relaxation. The studies encompassed ex vivo and in vivo models of diffusion. Regarding the former, luminal *NO generated from a mixture of physiolo...
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PMID: 20083218
PDF is available here.
PDF is available here.
Effects of nutrient pre-exposure on atrazine toxicity to Vallisneria americana Michx. (wild celery).
Abstract
Accelerated eutrophication is common to many freshwater and marine environments and often co-occurs with the presence of anthropogenic chemicals. However, the toxic effects of common chemical stressors such as herbicides in the presence of elevated nutrients are not well understood for most aquatic...
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PMID: 19795158
PDF is available here.
PDF is available here.
Abstract
The present study has been designed to investigate the effect of rosiglitazone, a peroxisome proliferator activated receptor gamma agonist in sodium arsenite-induced vascular endothelial dysfunction (VED) in rats. The rats were administered sodium arsenite (1.5 mg/kg/day, i.p., 2 weeks) to induce VE...
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PMID: 20422371
PDF is available here.
PDF is available here.