Sodium Nitrate ACS Crystals
Jost Code: 3770
Sodium Nitrate can be used as a laboratory reagent and for precision industrial applications. Product specifications, SDSs and certifications are available under Additional Information.
Calcified Tissue International. 2001 Sep
Mechanisms of action and therapeutic potential of strontium in bone.
The processes of bone resorption and formation are tightly governed by a variety of systemic and local regulatory agents. In addition, minerals and trace elements affect bone formation and resorption through direct or indirect effects on bone cells or bone mineral. Some trace elements closely chemically related to calcium, such as strontium (Sr), have pharmacological… Read Abstract
Journal of Biomedical Materials Research Part A. 2015 Oct
Strontium-impregnated bioabsorbable composite for osteoporotic fracture fixation.
Osteoporosis impairs the bone-healing process as well as bone fracture fixation. The intervention of osteoporosis is considered to be one part of bone fracture treatment. Thus, orthopedic fixators impregnated with antiosteoporosis regimens will improve fracture fixation in osteoporotic bone. In this study, the strontium (Sr) and calcium phosphate ceramic (CPC) were mixed first and then… Read Abstract
Food Chemistry. 2014 Jan
Geographic determination of coffee beans using multi-element analysis and isotope ratios of boron and strontium.
This study aims to evaluate the feasibility of using chemical and isotopic compositions of coffee beans to identify their geographic origins. Twenty-one Coffea arabica beans collected from 14 countries in 3 major coffee-producing regions, Africa, America and Asia, were analysed for multi-element of B, Rb, Sr, Ba, Fe, Mn and Zn, as well as isotopic… Read Abstract
- Poultry Science . 2019 Mar Effects of zinc oxide nanoparticles on growth performance and concentrations of malondialdehyde, zinc in tissues, and corticosterone in broiler chickens under heat stress conditions.
The Journal of Clinical Dentistry. 2014 Jan
The effect of zinc lactate and magnolia bark extract added tablets on volatile sulfur-containing compounds in the oral cavity.
A controlled, clinical, double-blind study was conducted to assess the efficacy of sugar-free tablets containing zinc lactate and magnolia bark extract (MBE) on oral volatile sulfur-containing compounds (VSC) versus placebo tablets for two hours. METHODS: In order to join the study, subjects had to have at least 24 teeth, no report of oral and systemic… Read Abstract
Animal Science Journal. 2015 Aug
Zinc-bearing zeolite clinoptilolite improves tissue zinc accumulation in laying hens by enhancing zinc transporter gene mRNA abundance.
A study was conducted to investigate effects of zinc-bearing zeolite clinoptilolite (ZnCP), as an alternative for zinc sulfate (ZnSO4), on laying performance, tissue Zn accumulation and Zn transporter genes expression in laying hens. Hy-Line Brown laying hens were allocated to three treatments, each of which had six replicates with 15 hens per replicate, receiving basal… Read Abstract
Oral Health and Preventive Dentistry. 2010 Jan
The effects of a zinc citrate dentifrice on bacteria found on oral surfaces.
PURPOSE: Clinical studies with dentifrices formulated with antimicrobial ingredients typically examine the effects of their use on clinical parameters of dental plaque and gingivitis. The effects of routine use of these formulations on the microorganisms found in the distinct regions of the human mouth remain unexplored. The present cross-over design clinical study compared the effects… Read Abstract
Korean Journal of Urology. 2012 Feb
Induction of apoptosis of bladder cancer cells by zinc-citrate compound.
PURPOSE: Zinc is one of the trace minerals in the body and is known to have an anticancer effect by inducing apoptosis in prostate cancer. We aimed to investigate the antiproliferative effects of a zinc-citrate compound in bladder cancer. MATERIALS AND METHODS: A bladder cancer cell line (MBT-2) was treated with a zinc-citrate compound at… Read Abstract
The Journal of Nutrition. 2014 Feb
Zinc absorption by young adults from supplemental zinc citrate is comparable with that from zinc gluconate and higher than from zinc oxide.
The water-soluble zinc salts gluconate, sulfate, and acetate are commonly used as supplements in tablet or syrup form to prevent zinc deficiency and to treat diarrhea in children in combination with oral rehydration. Zinc citrate is an alternative compound with high zinc content, slightly soluble in water, which has better sensory properties in syrups but… Read Abstract
Food and Chemical Toxicology. 2019 Mar
Zinc citrate incorporation with whey protein nanoparticles alleviate the oxidative stress complication and modulate gene expression in the liver of rats.
This study aimed to evaluate the hepatoprotective effect of whey protein nanoparticles (WP-NPs) coated Zinc citrate (Zn) against oxidative stress complications and disturbances in gene expression in rats treated with CCl4. WP-NPs were used to coat Zn at three levels and amino acids content was determined in WP-NPs and the fabrications. Seven groups of male… Read Abstract
Journal of Veterinary Dentistry. 2001 Dec
Clinical and microbiological effects of oral zinc ascorbate gel in cats.
The clinical and microbiological effects of zinc ascorbate gel applied orally in cats were evaluated during a 42-day study period. Cats were divided randomly into two equal groups, with the treatment group (18 cats) receiving zinc ascorbate gel and the control group (18 cats) receiving a placebo (0.9% sterile saline). Clinical parameters evaluated biweekly included… Read Abstract
Clinical, Cosmetic and Investigational Dermatology. 2011 Oct
Susceptibility of Propionibacterium acnes isolated from patients with acne vulgaris to zinc ascorbate and antibiotics.
PURPOSE: The in vitro antimicrobial activity of ascorbic acid derivatives against Propionibacterium acnes was tested either alone or in combination with a variety of antimicrobial agents, and their fractional inhibitory concentration index was determined using checkerboard tests. The antimicrobial effectiveness of zinc ascorbate in the treatment of acne vulgaris, either alone or in combination with… Read Abstract
Clinical, Cosmetic and Investigational Dermatology. 2012 Sep
Zinc ascorbate has superoxide dismutase-like activity and in vitro antimicrobial activity against Staphylococcus aureus and Escherichia coli.
BACKGROUND: Acne vulgaris is a common dermatological disease, and its pathogenesis is multifactorial. OBJECTIVE: We examined whether the ascorbic acid derivative zinc ascorbate has superoxide dismutase (SOD)-like activity. SOD is an enzyme that controls reactive oxygen species production. In addition, the in vitro antimicrobial activity of zinc ascorbate against the Gram-positive bacterium Staphylococcus aureus and… Read Abstract
Contact Dermatitis. 2000 Feb
Strontium nitrate suppresses chemically-induced sensory irritation in humans.
Skin care products are complex formulations that may cause sensory irritation symptoms, characterized by stinging, burning, and itching. Substances capable of counteracting sensory irritation are of great practical interest. Strontium salts have been demonstrated to inhibit sensory irritation and inflammation when applied topically. In this double-blind study, we evaluated the efficacy of strontium nitrate in… Read Abstract
Dermatology. 2010 May
Strontium nitrate decreased histamine-induced itch magnitude and duration in man.
BACKGROUND: Previous studies have demonstrated that strontium salts have a potent and broad ability to suppress sensory irritation. OBJECTIVE: To ascertain the possible antipruritic effects of topical strontium salts, we conducted a double-blind randomized study to evaluate the effect of 20% strontium nitrate on itch magnitude (intensity) and duration. METHODS: In 8 human subjects, strontium… Read Abstract
The American Journal of Clinical Nutrition. 2016 Aug
Bioavailability of potassium from potatoes and potassium gluconate: a randomized dose response trial.
BACKGROUND: The bioavailability of potassium should be considered in setting requirements, but to our knowledge, the bioavailability from individual foods has not been determined. Potatoes provide 19-20% of potassium in the American diet.OBJECTIVE: We compared the bioavailability and dose response of potassium from nonfried white potatoes with skin [targeted at 20, 40, and 60 milliequivalents… Read Abstract
British Journal of Anaesthesia. 2013 May
Effect of intrathecal magnesium in the presence or absence of local anaesthetic with and without lipophilic opioids: a systematic review and meta-analysis.
Spinal anaesthesia is the primary anaesthetic technique for many types of surgery. Adjuncts to the local anaesthetics (LA) used in spinal anaesthesia can exhibit undesirable side-effects, limiting their use, but magnesium may have advantages in this respect. We sought randomized control trials (RCTs) in patients undergoing all types of surgery and in women in labour… Read Abstract
Acta Neurologica Belgica. 2019 Feb
The efficacy of magnesium oxide and sodium valproate in prevention of migraine headache: a randomized, controlled, double-blind, crossover study.
Migraine is a disabling disorder that affects the quality of life of patients. Different medications have been used in prevention of migraine headache. In this study, we evaluated the effectiveness of magnesium oxide in comparison with valproate sodium in preventing migraine headache attacks. This is a single-center, randomized, controlled, crossover trial which is double-blind, 24-week,… Read Abstract
Acta Universitatis Palackianae Olomucensis. 1991 Jan
Osteoporosis treated with magnesium lactate.
33 patients with senile, 18 patients with postmenopausal and 9 patients with medicamentous (corticosteroids) osteoporosis were treated with single therapy of Mg lactate (37 patients) and with the combined one of Mg lactate and Na fluoride (23 patients). They were evaluated in three periods of half a year, one year, two years. The better results… Read Abstract
Nephrology Dialysis Transplantation. 2017 Mar
Magnesium lactate in the treatment of Gitelman syndrome: patient-reported outcomes.
BACKGROUND: Gitelman syndrome (GS) is a rare recessively inherited renal tubulopathy associated with renal potassium (K) and magnesium (Mg) loss. It requires lifelong K and Mg supplementation at high doses that are at best unpalatable and at worst, intolerable. In particular, gastrointestinal side effects often limit full therapeutic usage. METHODS: We report here the analysis… Read Abstract
Drug Development and Industrial Pharmacy. 2018 Sep
The absolute bioavailability and the effect of food on a new magnesium lactate dihydrate extended-release caplet in healthy subjects.
OBJECTIVE: To assess the absolute bioavailability of 20 mEq magnesium lactate extended-release (ER) caplets and to assess the effect of food on the pharmacokinetics of these ER caplets. SIGNIFICANCE: Magnesium in different salt forms is available as over-the-counter oral formulations. The absorption and bioavailability is highly affected by the water solubility of the salt form.… Read Abstract
Acta scientiarum polonorum. Technologia alimentaria.. 2018 Jul
Quality of yogurt fortified with magnesium lactate.
During the tests carried out with rats the organic complex magnesium gluconate was examined for its bioavailability and its stress-reducing properties after oral application. The increase of magnesium concentration in serum achieved by means of magnesium gluconate turned out to be higher than the increase of concentration due to the administration of magnesium chloride. Just… Read Abstract
Zhonghua fu chan ke za zhi. 1997 Oct
Oral low-dose magnesium gluconate preventing pregnancy induced hypertension.
OBJECTIVE: To study the effects of oral low-dose magnesium gluconate in prevention of pregnancy induced hypertension (PIH) and its mechanism. METHODS: A prospective randomized double-blind study was carried out in 51 pregnant women as treatment group (including 22 cases as treatment group 1 and 29 cases as treatment group 2) and 51 pregnant women as… Read Abstract
Journal of Cardiovascular Pharmacology. 2018 Dec
Magnesium Citrate Protects Against Vascular Calcification in an Adenine-induced Chronic Renal Failure Rat Model.
BACKGROUND: Hypomagnesemia was identified as a strong risk factor for cardiovascular disease in patients with chronic renal failure (CRF). However, the effects of magnesium (Mg) on vascular calcification (VC) have not been fully elucidated. Thus, we aim to determine the effects of Mg citrate (MgCit) on VC in CRF rats. METHODS: Rats were divided into… Read Abstract
Journal of Cutaneous Medicine and Surgery. 2018 May
A Case of Hailey-Hailey Disease Managed With Oral Magnesium Citrate and High-Dose Vitamin D3.
Hailey-Hailey disease, or benign familial pemphigus, is a rare blistering disease originally described in 1939. The disease is due to an autosomal dominant mutation in the ATP2C1 gene on chromosome 3, which encodes for an adenosine triphosphate-dependent calcium pump in the Golgi apparatus whose function is to maintain intercellular calcium homeostasis. Common treatments for Hailey-Hailey… Read Abstract
Journal of Nephrology. 2019 Feb
Control of metabolic predisposition to cardiovascular complications of chronic kidney disease by effervescent calcium magnesium citrate: a feasibility study.
AIMS: Cardiovascular (CV) complications are common in chronic kidney disease (CKD). Numerous metabolic disturbances including hyperphosphatemia, high circulating calciprotein particles (CPP), hyperparathyroidism, metabolic acidosis, and magnesium deficiency are associated with, and likely pathogenic for CV complications in CKD. The goal of this feasibility study was to determine whether effervescent calcium magnesium citrate (EffCaMgCit) ameliorates the… Read Abstract
Current Opinion in Clinical Nutrition & Metabolic Care. 2014 May
Meeting iron needs for infants and children
Iron deficiency early in life is associated with impaired neurological development. This study reviews the latest research on how to best meet iron requirements in infants and children. There is concurrent evidence that delayed cord clamping is well tolerated and improves infant iron stores. Iron supplements or enriched complementary foods starting before 6 months of… Read Abstract
Vojnosanit Pregl. 2006 Feb
Resorption and tolerance of the high doses of ferrous sulfate and ferrous gluconate in the patients on peritoneal dialysis.
BACKGROUND/AIM: Iron supplementation plays a crucial role in peritoneal dialysis (PD) patients. Oral iron substitution is more convenient than intravenous therapy in PD patients, but impaired absorption and adverse effects may be limiting factors for oral treatment. The aim of this study was to compare the absorption and side effects of high doses ferrous sulphate… Read Abstract
- Journal of Nutritional Science and Vitaminology. 1991 Apr Improvement in iron deficiency anemia through therapy with ferric ammonium citrate and vitamin C and the effects of aerobic exercise.
Cell Discovery. 2018 Mar
Antiviral effects of ferric ammonium citrate.
Iron is an essential nutrient for cell survival and is crucial for DNA replication, mitochondrial function and erythropoiesis. However, the immunological role of iron in viral infections has not been well defined. Here we found the iron salt ferric ammonium citrate (FAC) inhibited Influenza A virus, HIV virus, Zika virus, and Enterovirus 71 (EV71) infections.… Read Abstract
Send to Zhong Nan Da Xue Xue Bao Yi Xue Ban. 2007 Apr
Oral ferric ammonium citrate solution in MRCP for diagnosing low-level obstructive jaundice.
OBJECTIVE: To evaluate the value of oral ferric ammonium citrate solution as a gastrointestinal contrast agent in diagnosing low-level obstructive jaundice. METHODS: Thirty-six patients who were suspected of low-level obstructive jaundice were performed with magnetic resonance cholangiopancreatography (MRCP) and conventional MRI before and after the administration of oral ferric ammonium citrate solution. The diagnostic accuracy… Read Abstract
Acta Radiologica. 1999 Jul
Ferric ammonium citrate as a positive bowel contrast agent for MR imaging of the upper abdomen. Safety and diagnostic efficacy.
PURPOSE: To evaluate the safety and diagnostic efficacy of two different doses of ferric ammonium citrate as a paramagnetic oral contrast agent for MR imaging of the upper abdomen. MATERIAL AND METHODS: Ninety-nine adult patients referred for MR imaging for a known or suspected upper abdominal pathology were included in this randomized multicenter double-blind clinical… Read Abstract
Frontiers in Bioscience. 2004 Sep
Copper storage diseases: Menkes, Wilsons, and cancer
The trace element copper is vital to the healthy functioning of organisms. Copper is used in a multitude of cellular activities including respiration, angiogenesis, and immune responses. Like other metals, copper homeostasis is a tightly regulated process. Copper is transported from dietary intake through the serum and into cells via a variety of transporters. There… Read Abstract
Survey of Ophthalmology. 2013 Nov
Iron, zinc, and copper in retinal physiology and disease.
The essential trace metals iron, zinc, and copper play important roles both in retinal physiology and disease. They are involved in various retinal functions such as phototransduction, the visual cycle, and the process of neurotransmission, being tightly bound to proteins and other molecules to regulate their structure and/or function or as unbound free metal ions.… Read Abstract
Nature. 2014 May
Copper is required for oncogenic BRAF signalling and tumorigenesis.
The BRAF kinase is mutated, typically Val 600→Glu (V600E), to induce an active oncogenic state in a large fraction of melanomas, thyroid cancers, hairy cell leukaemias and, to a smaller extent, a wide spectrum of other cancers. BRAF(V600E) phosphorylates and activates the MEK1 and MEK2 kinases, which in turn phosphorylate and activate the ERK1 and… Read Abstract
Oncotarget. 2016 Jun
Copper as a target for prostate cancer therapeutics: copper-ionophore pharmacology and altering systemic copper distribution.
Copper-ionophores that elevate intracellular bioavailable copper display significant therapeutic utility against prostate cancer cells in vitro and in TRAMP (Transgenic Adenocarcinoma of Mouse Prostate) mice. However, the pharmacological basis for their anticancer activity remains unclear, despite impending clinical trails. Herein we show that intracellular copper levels in prostate cancer, evaluated in vitro and across disease… Read Abstract
Waste Management & Research. 2017 Jun
Optimisation of chemical oxygen demand removal from landfill leachate by sonocatalytic degradation in the presence of cupric oxide nanoparticles.
Leachate is the liquid formed when waste breaks down in the landfill and water filters through that waste. This liquid is very toxic and can pollute the land, ground water, and water resources. In most countries, it is mandatory for landfills to be protected against leachate. In addition to all other harms to the environment,… Read Abstract
Biosensors and Bioelectronics. 2018 Feb
Efficient label-free chemiluminescent immunosensor based on dual functional cupric oxide nanorods as peroxidase mimics.
Dual-functional cupric oxide nanorods (CuONRs) as peroxidase mimics are proposed for the development of a flow-through, label-free chemiluminescent (CL) immunosensor. Forming the basis of this cost-efficient, label-free immunoassay, CuONRs, synthesized using a simple hydrothermal method, were deposited onto epoxy-activated standard glass slides, followed by immobilization of biotinylated capture antibodies through a streptavidin bridge. The CuONRs… Read Abstract
Scientific Reports. 2019 Feb
Electromagnon excitation in cupric oxide measured by Fabry-Pérot enhanced terahertz Mueller matrix ellipsometry.
Here we present the use of Fabry-Pérot enhanced terahertz (THz) Mueller matrix ellipsometry to measure an electromagnon excitation in monoclinic cupric oxide (CuO). As a magnetically induced ferroelectric multiferroic, CuO exhibits coupling between electric and magnetic order. This gives rise to special quasiparticle excitations at THz frequencies called electromagnons. In order to measure the electromagnons… Read Abstract
International Journal of Pharmaceutics. 2007 Jun
Role of copper gluconate/triethanolamine in irinotecan encapsulation inside the liposomes.
A novel method for encapsulating irinotecan into liposomes containing copper gluconate buffered to pH 7.0 with triethanolamine (TEA) has recently been developed. In the present study, the mechanism dictating drug encapsulation and retention inside those liposomes was investigated. Spectroscopic analyses revealed that irinotecan interacted with copper gluconate/TEA in solution. Fourier transformed infrared (FT-IR) spectroscopy indicated… Read Abstract
Bioresource Technology. 2010 Feb
Adsorption of copper-citrate complexes on chitosan: equilibrium modeling.
The effects of complexes on the adsorption of copper from citrate solutions using chitosan were investigated. Various copper to citrate ratios and solution pHs were used to determine the copper adsorption capacity on the chitosan and a mathematical model was developed to simulate the copper adsorption process. According to the model, the three parameters influencing… Read Abstract
Pnas. 2014 Jul
Excited-state structural dynamics of a dual-emission calmodulin-green fluorescent protein sensor for calcium ion imaging
Fluorescent proteins (FPs) have played a pivotal role in bioimaging and advancing biomedicine. The versatile fluorescence from engineered, genetically encodable FP variants greatly enhances cellular imaging capabilities, which are dictated by excited-state structural dynamics of the embedded chromophore inside the protein pocket. Visualization of the molecular choreography of the photoexcited chromophore requires a spectroscopic technique… Read Abstract
Nutrition Reviews. 2012 Jul
Role of calcium during pregnancy: maternal and fetal needs
Although the demand for additional calcium during pregnancy is recognized, the dietary reference intake for calcium was lowered for pregnant women in 1997 to amounts recommended for nonpregnant women (1,000 mg/day), and recently (November 2010) the Institute of Medicine report upheld the 1997 recommendation. It has been frequently reported that women of childbearing age do… Read Abstract
- Journal of Internal Medicine. 2006 May Calcium and vitamin D in the prevention and treatment of osteoporosis – a clinical update
Journal of Biological Chemistry. 2014 Apr
The plasma membrane calcium pump: new ways to look at an old enzyme.
The three-dimensional structure of the PMCA pump has not been solved, but its basic mechanistic properties are known to repeat those of the other Ca(2+) pumps. However, the pump also has unique properties. They concern essentially its numerous regulatory mechanisms, the most important of which is the autoinhibition by its C-terminal tail. Other regulatory mechanisms… Read Abstract
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2019 Mar
Traditional materials from new sources - conflicts in analytical methods for calcium carbonate.
Calcium carbonate (E170) is a common food and pharmaceutical additive/ingredient. In addition to a source of calcium, the carbonate has uses including as a colour, acidity regulator and bulking agent. Globally, a range of regulatory agencies and pharmacopoeia control the analyses and specification of additives in food, supplements, pharmaceutical substances and excipients. Accordingly, a range… Read Abstract
Bioresource Technology. 2013 Sep
High-level production of calcium malate from glucose by Penicillium sclerotiorum K302.
In this study, after screening of 9 fungal strains for their ability to produce calcium malate, it was found that Penicillium sclerotiorum K302 among them could produce high-level of calcium malate. Under the optimal conditions, the titer of calcium malate in the supernatant was 88.6 g/l at flask level. During 10-l fermentation, the titer of… Read Abstract
Journal of Dairy Science. 2019 Jan
Calcium lactate as an attractive compound to partly replace salt in blue-veined cheese.
In addition to their high sodium content, cheeses are thought to induce an acid load to the body, which is associated with deleterious effects on consumers’ health. Our objective was to explore the use of alkalinizing salts in partial substitution of NaCl to reduce both the sodium content and the acid-forming potential of cheese, without… Read Abstract
Environmental Toxicology and Pharmacology. 2015 Jan
Anti-inflammatory effects of calcium citrate in RAW 264.7cells via suppression of NF-κB activation.
Here we aimed to investigate the anti-inflammatory effects of calcium citrate in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. The anti-inflammatory effects of calcium citrate were investigated by assessing pro-inflammatory factors (NO, ROS, NF-κB, iNOS, and COX-2) and pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α). Treatment of cells with calcium citrate (10-100μM) significantly reduced the generation of intracellular… Read Abstract
Bioengineered. 2016 Sep
Preparation and properties of calcium citrate nanosheets for bone graft substitute.
A convenient and effective soft chemical method is presented for the synthesis of nano-scaled calcium citrate sheets. The preparation involved the precipitation of nano-calcium citrate by adding ethanol to reach the super saturation state of a solution containing calcium and citrate salts. The obtained nano-calcium citrate formed nanosheets, with the following dimensions: width of about… Read Abstract
Journal of Food and Drug Analysis. 2018 Jan
Codissolution of calcium hydrogenphosphate and sodium hydrogencitrate in water. Spontaneous supersaturation of calcium citrate increasing calcium bioavailability.
The sparingly soluble calcium hydrogenphosphate dihydrate, co-dissolving in water during dissolution of freely soluble sodium hydrogencitrate sesquihydrate as caused by proton transfer from hydrogencitrate to hydrogenphosphate, was found to form homogenous solutions supersaturated by a factor up to 8 in calcium citrate tetrahydrate. A critical hydrogencitrate concentration for formation of homogeneous solutions was found to… Read Abstract
Food Research International. 2018 May
Supersaturation of calcium citrate as a mechanism behind enhanced availability of calcium phosphates by presence of citrate.
Dissolution of amorphous calcium phosphate (ACP) in aqueous citrate at varying pH has been studied with perspective of increasing availability of calcium from sidestreams of whey protein, lactose and/or cheese production or on development of new functional foods. ACP formed as an initial precipitate in 0.10 mol L-1 equimolar aqueous calcium chloride, sodium citrate, and sodium hydrogenphosphate… Read Abstract
Nutrients. 2018 Nov
Chronic Ingestion of Sodium and Potassium Bicarbonate, with Potassium, Magnesium and Calcium Citrate Improves Anaerobic Performance in Elite Soccer Players.
Anaerobic power and anaerobic capacity significantly influence performance in many sport disciplines. These include prolonged sprints in athletics, swimming, or cycling, and other high intensity intermittent sports, such as soccer or basketball. Considering the association of exercise-induced acidosis and fatigue, the ingestion of potential buffering agents such as sodium bicarbonate, has been suggested to attenuate… Read Abstract
Food Research International. 2019 Feb
Calcium citrate insolubilization drives the fouling of falling film evaporators during the concentration of hydrochloric acid whey.
When dairy powders are produced, the mineral fraction undergoes strong modifications during the vacuum concentration step, leading to the fouling of falling film evaporators. The objective of this study was to determine the nature of the deposits formed during the vacuum concentration of two fouling and highly mineralized products: hydrochloric acid whey and lactic acid… Read Abstract
Applied and Environmental Microbiology. 1990 Dec
Mechanism by which ammonium bicarbonate and ammonium sulfate inhibit mycotoxigenic fungi.
In this study we examined the mechanism by which ammonium bicarbonate inhibits mycotoxigenic fungi. Elevated extracellular pH, alone, was not responsible for the antifungal activity. Although conidia of Penicillium griseofulvum and Fusarium graminearum had internal pH (pHi) values as high as 8.0 in buffer at an external pH (pHo) of 9.5, their viability was not… Read Abstract
Chemosphere. 2015 Sep
Combination of powdered activated carbon and powdered zeolite for enhancing ammonium removal in micro-polluted raw water.
Even zeolite is promising in ammonia pollution disposing, its removal efficiency is frequently interfered by organics. As activated carbon has good removal efficiency on organic contaminants, combination of two adsorbents may allow their respective adsorption characteristics into full play. This paper provides a performance assessment of the combination for enhancing ammonium removal in micro-polluted raw… Read Abstract
- Journal of Pharmaceutical Sciences. 2014 Aug Physical characterisation and long-term stability studies on quaternary ammonium palmitoyl glycol chitosan (GCPQ)--a new drug delivery polymer.
Acta Physiologica. 2015 Jun
Ammonium increases Ca(2+) signalling and upregulates expression of Cav1.2 gene in astrocytes in primary cultures and in the in vivo brain.
AIM: The primary aim of this study was to identify the effects of hyperammonaemia on functional expression of Cav1.2 L-type Ca(2+) channels in astroglia.METHODS: Primary cultures of mouse astrocytes were used to study effects of chronic treatment (1-5 days) with ammonium chloride, at 1, 3 and 5 mm on depolarization-induced increases in free cytosolic Ca(2+)… Read Abstract
Journal of Chromatography A. 2016 Dec
Headspace gas chromatography based methodology for the analysis of aromatic substituted quaternary ammonium salts.
The analysis of quaternary ammonium salts (QAS) using GC is often performed by “in injector” pyrolysis to create volatile degradation products for quantification purposes. Besides the risk of severe system contamination, the application of this approach on aqueous samples is problematic. In this work, the sample is treated in a vial with 2,2-dimethoxypropane (DMP) under… Read Abstract
Stem Cells. 2015 Sep
Brief Report: Human Mesenchymal Stem-Like Cells Facilitate Floating Tumorigenic Cell Growth via Glutamine-Ammonium Cycle.
How mesenchymal stem cells (MSCs) promote tumor growth remains incompletely understood. Here, we show that mesenchymal stem-like cells (MSLCs) are commonly present in malignant pleural effusion or ascites of cancer patients, where they directly interact with tumor cells. Chemokines and chemokine receptors, especially the CCL2/CCR2 pathway, are involved in this interaction. As a result, MSLCs… Read Abstract
International Journal of Food Microbiology. 2014 May
New insights into the advantages of ammonium as a winemaking nutrient.
Nitrogen limitation is the most common cause for stuck or sluggish fermentation in winemaking, and it is usually dealt with by supplementing grape juice with either ammonium salts or organic nutrients. These practices have a direct impact on both fermentation kinetics and the sensorial features of the final product. The aim of this work is… Read Abstract
Science of the Total Environment. 2019 Jan
Development of a polydimethylsiloxane-thymol/nitroprusside composite based sensor involving thymol derivatization for ammonium monitoring in water samples.
This report describes a polydimethylsiloxane (PDMS)-thymol/nitroprusside delivery composite sensor for direct monitoring of ammonium in environmental water samples. The sensor is based on a PDMS support that contains the Berthelot’s reaction reagents. To prepare the PDMS-thymol/nitroprusside composite discs, thymol and nitroprusside have been encapsulated in the PDMS matrix, forming a reagent release support which significantly… Read Abstract
Proceedings of the National Academy of Sciences of the United States of America . 2014 Jul
Direct observation of electrogenic NH4(+) transport in ammonium transport (Amt) proteins.
Ammonium transport (Amt) proteins form a ubiquitous family of integral membrane proteins that specifically shuttle ammonium across membranes. In prokaryotes, archaea, and plants, Amts are used as environmental NH4(+) scavengers for uptake and assimilation of nitrogen. In the eukaryotic homologs, the Rhesus proteins, NH4(+)/NH3 transport is used instead in acid-base and pH homeostasis in kidney… Read Abstract
Revista Brasileira de Ciência do Solo. 2018 Dec
Acid Ammonium Citrate as P Extractor for Fertilizers of Varying Solubility
There are several globally accepted methods to chemically characterize P-fertilizers, but not all are suitable to predict the agronomic efficiency of the P sources in terms of plant nutrition. Our aim was to investigate the performance of P extractors for fertilizers, investigating the consistency of different methods for P sources of varying properties and the… Read Abstract
Journal of Experimental Botany. 2017 Mar
Ammonium as a signal for physiological and morphological responses in plants
Ammonium is a major inorganic nitrogen source for plants. At low external supplies, ammonium promotes plant growth, while at high external supplies it causes toxicity. Ammonium triggers rapid changes in cytosolic pH, in gene expression, and in post-translational modifications of proteins, leading to apoplastic acidification, co-ordinated ammonium uptake, enhanced ammonium assimilation, altered oxidative and phytohormonal… Read Abstract