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Bicarbonate

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https://www.readbyqxmd.com/read/28431352/degradation-of-sulfamethoxazole-by-uv-uv-h2o2-and-uv-persulfate-pds-formation-of-oxidation-products-and-effect-of-bicarbonate
#1
Yi Yang, Xinglin Lu, Jin Jiang, Jun Ma, Guanqi Liu, Ying Cao, Weili Liu, Juan Li, Suyan Pang, Xiujuan Kong, Congwei Luo
The frequent detection of sulfamethoxazole (SMX) in wastewater and surface waters gives rise of concerns about their ecotoxicological effects and potential risks to induce antibacterial resistant genes. UV/hydrogen peroxide (UV/H2O2) and UV/persulfate (UV/PDS) advanced oxidation processes have been demonstrated to be effective for the elimination of SMX, but there is still a need for a deeper understanding of product formations. In this study, we identified and compared the transformation products of SMX in UV, UV/H2O2 and UV/PDS processes...
March 28, 2017: Water Research
https://www.readbyqxmd.com/read/28429868/clarification-of-serotonin-induced-effects-in-peripheral-artery-disease-observed-through-the-femoral-artery-response-in-models-of-diabetes-and-vascular-occlusion-the-role-of-calcium-ions
#2
Marko Stojanović, Milica Prostran, Radmila Janković, Miroslav Radenković
Recent findings have demonstrated that serotonin is an important participant in the development and progression of peripheral artery diseases. Taking this into consideration, the goals of this study were to investigate the effects of serotonin on isolated Wistar rat femoral arteries in both healthy and diabetic animals, with and without artery occlusion, with a particular focus on determining the role of calcium in this process. Contraction experiments with serotonin on intact and denuded femoral artery rings, in the presence or absence of nifedipine and ouabain (both separately, or in combination), as well as Ca(2+) -free Krebs-Ringer bicarbonate solution were performed...
April 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28428931/the-role-of-renal-proximal-tubule-transport-in-the-regulation-of-blood-pressure
#3
REVIEW
Shoko Horita, Motonobu Nakamura, Masashi Suzuki, Nobuhiko Satoh, Atsushi Suzuki, Yukio Homma, Masaomi Nangaku
The electrogenic sodium/bicarbonate cotransporter 1 (NBCe1) on the basolateral side of the renal proximal tubule plays a pivotal role in systemic acid-base homeostasis. Mutations in the gene encoding NBCe1 cause severe proximal renal tubular acidosis accompanied by other extrarenal symptoms. The proximal tubule reabsorbs most of the sodium filtered in the glomerulus, contributing to the regulation of plasma volume and blood pressure. NBCe1 and other sodium transporters in the proximal tubule are regulated by hormones, such as angiotensin II and insulin...
March 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28427449/urolithiasis-analysis-in-a-multiethnic-population-at-a-tertiary-hospital-in-nairobi-kenya
#4
Francis K Wathigo, Alfred Hayombe, Daniel Maina
BACKGROUND: Urolithiasis is a global problem whose incidence is reported to be on the rise across the world. Previously, urolithiasis was reported as being rare among the indigenous African population but recent data suggest otherwise. This study reviewed the demographic and clinical characteristics of patients with urolithiasis seen at the Aga Khan University hospital Nairobi (AKUHN) as well as the chemical composition of the stones and the modalities of therapy used. METHODS: This was a retrospective study which utilized patients' clinical and laboratory records from 2013 to 2014...
April 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28427006/regeneration-of-pilot-scale-ion-exchange-columns-for-hexavalent-chromium-removal
#5
Julie A Korak, Richard Huggins, Miguel Arias-Paic
Due to stricter regulations, some drinking water utilities must implement additional treatment processes to meet potable water standards for hexavalent chromium (Cr(VI)), such as the California limit of 10 μg/L. Strong base anion exchange is effective for Cr(VI) removal, but efficient resin regeneration and waste minimization are important for operational, economic and environmental considerations. This study compared multiple regeneration methods on pilot-scale columns on the basis of regeneration efficiency, waste production and salt usage...
March 9, 2017: Water Research
https://www.readbyqxmd.com/read/28425719/adsorption-of-nitrate-and-bicarbonate-on-fe-hydr-oxide
#6
Nancy Y Acelas, Cacier Hadad, Albeiro Restrepo, César Ibarguen, Elizabeth Flórez
In this work, we used density functional theory calculations to study the resulting complexes of adsorption and of inner- and outer-sphere adsorption-like of bicarbonate and nitrate over Fe-(hydr)oxide surfaces using acidic, neutral, and basic simulated pH conditions. High-spin states that follow the 5N + 1 (N is the number of Fe atoms, each having five unpaired electrons) rule are preferred. Monodentate mononuclear (MM1) surface complexes are shown to lead to the most favorable thermodynamic adsorption for both bicarbonate and nitrate with -63...
April 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28420165/impact-of-acetazolamide-a-carbonic-anhydrase-inhibitor-on-the-development-of-intestinal-polyps-in-min-mice
#7
Nobuharu Noma, Gen Fujii, Shingo Miyamoto, Masami Komiya, Ruri Nakanishi, Misato Shimura, Sei-Ichi Tanuma, Michihiro Mutoh
Colorectal cancer is a common cancer worldwide. Carbonic anhydrase (CA) catalyzes the reversible conversion of carbon dioxide to bicarbonate ion and a proton, and its inhibitor is reported to reduce cancer cell proliferation and induce apoptosis. Therefore, we asked whether acetazolamide, a CA inhibitor, could inhibit intestinal carcinogenesis. Five-week-old male Apc-mutant mice, Min mice, were fed a AIN-76A diet containing 200 or 400 ppm acetazolamide. As a result, acetazolamide treatment reduced the total number of intestinal polyps by up to 50% compared to the control group...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28420042/determination-of-reference-intervals-of-acid-base-parameters-in-clinically-healthy-dogs
#8
Ivana Vanova-Uhrikova, Leona Rauserova-Lexmaulova, Kristina Rehakova, Peter Scheer, Jaroslav Doubek
OBJECTIVE: To establish reference intervals for traditionally- and Stewart's approach-determined acid-base parameters in a population of clinically healthy dogs. DESIGN: Prospective study (June 2011-September 2012). SETTING: Veterinary teaching hospital. ANIMALS: Two hundred twenty-four client-owned, clinically healthy dogs. INTERVENTIONS: Blood was collected from the jugular vein and the dorsal pedal artery...
April 18, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28417005/reversibility-of-vasalgel%C3%A2-male-contraceptive-in-a-rabbit-model
#9
Donald Waller, David Bolick, Elaine Lissner, Christopher Premanandan, Gary Gamerman
BACKGROUND: Development of a non-hormonal long-acting reversible contraceptive for men could have a significant impact on reducing unintended pregnancies. Vasalgel™ is a high molecular weight polymer consisting of styrene-alt-maleic acid (SMA) dissolved in dimethyl sulfoxide being developed as a reversible male contraceptive device. It forms a hydrogel when implanted into the vasa deferentia, which prevents the passage of sperm. Previous studies in the rabbit have proven its efficacy, durability and rapid onset...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28416967/rescuing-ethanol-photosynthetic-production-of-cyanobacteria-in-non-sterilized-outdoor-cultivations-with-a-bicarbonate-based-ph-rising-strategy
#10
Zhi Zhu, Guodong Luan, Xiaoming Tan, Haocui Zhang, Xuefeng Lu
BACKGROUND: Ethanol photosynthetic production based on cyanobacteria cell factories utilizing CO2 and solar energy provides an attractive solution for sustainable production of green fuels. However, the scaling up processes of cyanobacteria cell factories were usually threatened or even devastated by biocontaminations, which restricted biomass or products accumulations of cyanobacteria cells. Thus it is of great significance to develop reliable biocontamination-controlling strategies for promoting ethanol photosynthetic production in large scales...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28416929/role-of-coma-acidosis-malaria-score-in-patients-with-severe-malaria-among-indian-population-a-tertiary-care-center-experience
#11
Hari Krishan Aggarwal, Deepak Jain, Avinash Rao, Rajinish Kalra
OBJECTIVE: Malaria is a prime public health threat in developing countries like India. There is an unmet need of a simplified methodology for the purpose of triage and provision of intensive care to the severely infected patients in these areas. MATERIALS AND METHODS: We did a prospective study in patients (n=60) admitted with severe malaria in a single tertiary care center in the state of Haryana, India. We assessed the role of coma acidosis malaria (CAM) score in these patients when predicting mortality and morbidity events...
February 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28414668/autoimmune-diabetes-presented-with-diabetic-ketoacidosis-induced-by-immunotherapy-in-an-adult-with-melanoma
#12
A A Alzenaidi, J Dendy, L Rejjal
INTRODUCTION: Immunotherapy has been approved for treatment of melanoma. Autoimmune endocrinopathies have been reported in trials involving immunotherapy but autoimmune diabetes has not been definitively linked to them. Here we describe a case of autoimmune diabetes presenting with DKA after receiving combined immunotherapy with anti-CTLA4 and anti-PD1 monoclonal antibodies. CASE: A 47year old gentleman with metastatic melanoma presented to our institution with confusion, abdominal pain and decreased oral intake...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28411655/-a-new-cleansing-technique-for-complex-wounds
#13
REVIEW
Sandrine Lassalle, Céline Chéchin, David de la Forge
Fast, effective and pain-free cleansing is essential in the management of wounds, in order to favour the formation of the granulation tissue and the filling of the cavity. Faced with a chronic wound which was not progressing from the inflammatory phase, caregivers put in place a technique combining negative pressure therapy and instillations of sodium bicarbonate and oxygenated water. The initial results are promising, with the patient benefiting from effective and pain-free cleansing.
April 2017: Soins; la Revue de Référence Infirmière
https://www.readbyqxmd.com/read/28411369/comparison-of-equine-platelet-function-and-survival-in-whole-blood-collected-in-acid-citrate-dextrose-solution-or-citrate-phosphate-dextrose-adenine-solution
#14
Rana Bozorgmanesh, Julie W Sutton-Burges, Fern Tablin
BACKGROUND: Equine whole blood collection and storage methods have been evaluated to assess red blood cell viability; however, platelet (PLT) viability has not been comprehensively assessed. OBJECTIVES: The purpose of the study was to compare viability of PLTs collected in whole blood into 2 different anticoagulants. METHODS: Whole blood from 6 healthy adult Thoroughbred horses was collected into citrate-phosphate-dextrose-adenine (CPDA) or acid-citrate-dextrose (ACD)...
April 14, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28408532/-68-ga-thp-psma-a-pet-imaging-agent-for-prostate-cancer-offering-rapid-room-temperature-one-step-kit-based-radiolabeling
#15
Jennifer D Young, Vincenzo Abbate, Cinzia Imberti, Levente K Meszaros, Michelle T Ma, Samantha Y A Terry, Robert C Hider, Greg E Mullen, Philip J Blower
The clinical impact and accessibility of (68)Ga tracers for the prostate-specific membrane antigen (PSMA) and other targets would be greatly enhanced by the availability of a simple, one-step kit-based labeling process. Radiopharmacy staff are accustomed to such procedures in the daily preparation of (99m)Tc radiopharmaceuticals. Currently, chelating agents used in (68)Ga radiopharmaceuticals do not meet this ideal. AIM: To develop and evaluate preclinically a (68)Ga radiotracer for imaging PSMA expression that could be radiolabeled simply by addition of (68)Ga generator eluate to a cold kit...
April 13, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28407966/detection-of-several-common-adulterants-in-raw-milk-by-mid-infrared-spectroscopy-and-one-class-and-multi-class-multivariate-strategies
#16
Carina de Souza Gondim, Roberto Gonçalves Junqueira, Scheilla Vitorino Carvalho de Souza, Itziar Ruisánchez, M Pilar Callao
A sequential strategy was proposed to detect adulterants in milk using a mid-infrared spectroscopy and soft independent modelling of class analogy technique. Models were set with low target levels of adulterations including formaldehyde (0.074g.L(-1)), hydrogen peroxide (21.0g.L(-1)), bicarbonate (4.0g.L(-1)), carbonate (4.0g.L(-1)), chloride (5.0g.L(-1)), citrate (6.5g.L(-1)), hydroxide (4.0g.L(-1)), hypochlorite (0.2g.L(-1)), starch (5.0g.L(-1)), sucrose (5.4g.L(-1)) and water (150g.L(-1)). In the first step, a one-class model was developed with unadulterated samples, providing 93...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28407322/effect-of-intravenous-small-volume-hypertonic-sodium-bicarbonate-sodium-chloride-and-glucose-solutions-in-decreasing-plasma-potassium-concentration-in-hyperkalemic-neonatal-calves-with-diarrhea
#17
F M Trefz, P D Constable, I Lorenz
BACKGROUND: Hyperkalemia is a frequently observed electrolyte imbalance in dehydrated neonatal diarrheic calves that can result in skeletal muscle weakness and life-threatening cardiac conduction abnormalities and arrhythmias. HYPOTHESIS: Intravenous administration of a small-volume hypertonic NaHCO3 solution is clinically more effective in decreasing the plasma potassium concentration (cK) in hyperkalemic diarrheic calves than hypertonic NaCl or glucose solutions...
April 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28406701/prompt-rise-in-urinary-ammonium-excretion-suffices-to-mitigate-metabolic-acidosis-in-an-experimental-animal-model-of-severe-normovolemic-hemodilution
#18
J K Teloh, I N Waack, H de Groot
Recently, we have established a model of severe stepwise normovolemic hemodilution to a hematocrit of 10% in rats employing three different colloidal volume replacement solutions (Voluven, Volulyte and Gelafundin) that are routinely used in clinical practice at present. We did not see severe dilutional acidosis as to be expected, but a decline in urinary pH. We here looked on further mechanisms of renal acid excretion during normovolemic hemodilution. Bicarbonate, which had been removed during normovolemic hemodilution, was calculated with the help of the Henderson-Hasselbalch equation...
April 12, 2017: Physiological Research
https://www.readbyqxmd.com/read/28406362/evaluation-of-coverall-field-dry-aerosol-decontamination-methods-using-a-manikin
#19
J M Slagley, H Paschold, J M Engler
A full-size manikin dressed in fire-resistant coveralls coated in 120 grams of sodium bicarbonate was randomly given one of three treatments for dry aerosol decontamination. The three treatments were high-efficiency particulate air (HEPA) vacuum, a commercially-available air shower, and the no treatment control. Immediately after the treatment, the coveralls were doffed and an air sample was taken in the breathing zone of the manikin to estimate airborne total and respirable dust concentrations to an unprotected worker post decontamination...
April 13, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28406140/spicule-formation-in-calcareous-sponges-coordinated-expression-of-biomineralization-genes-and-spicule-type-specific-genes
#20
Oliver Voigt, Maja Adamska, Marcin Adamski, André Kittelmann, Lukardis Wencker, Gert Wörheide
The ability to form mineral structures under biological control is widespread among animals. In several species, specific proteins have been shown to be involved in biomineralization, but it is uncertain how they influence the shape of the growing biomineral and the resulting skeleton. Calcareous sponges are the only sponges that form calcitic spicules, which, based on the number of rays (actines) are distinguished in diactines, triactines and tetractines. Each actine is formed by only two cells, called sclerocytes...
April 13, 2017: Scientific Reports
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