Functional Properties and Molecular Architecture of Leukotriene A4 Hydrolase, a Pivotal Catalyst of Chemotactic Leukotriene Formation by Jesper Z. Haeggström, Pär Nordlund, Marjolein M.G.M. Thunnissen

“…The final step in the biosynthesis of leukotriene B4 is catalyzed by leukotriene A4 hydrolase, a unique bifunctional zinc metalloenzyme with an anion-dependent aminopeptidase activity. Here we describe the most recent developments regarding our understanding of the function and molecular architecture of leukotriene A4 hydrolase.…”
Get full text

Niobium Uptake and Release by Bacterial Ferric Ion Binding Protein by Yanbo Shi, Ian Harvey, Dominic Campopiano, Peter J. Sadler

“…Iron(III) is tightly bound in a hinged binding cleft with octahedral coordination geometry involving binding to protein side chains (including tyrosinate residues) together with a synergistic anion such as phosphate. Niobium compounds are of interest for their potential biological activity, which has been little explored. …”
Get full text

Cyclotron Production of High–Specific Activity Co and In Vivo Evaluation of the Stability of Co Metal-Chelate-Peptide Complexes by Tara Mastren, Bernadette V. Marquez, Deborah E. Sultan, Elizabeth Bollinger, Paul Eisenbeis, Tom Voller, Suzanne E. Lapi

“…This work describes the production of high–specific activity 55 Co and the evaluation of the stability of 55 Co-metal-chelate-peptide complexes in vivo. 55 Co was produced via the 58 Ni(p,α) 55 Co reaction and purified using anion exchange chromatography with an average recovery of 92% and an average specific activity of 1.96 GBq/μmol. 55 Co-DO3A and 55 Co-NO2A peptide complexes were radiolabeled at 3.7 MBq/μg and injected into HCT-116 tumor xenografted mice. …”
Get full text

Nucleophilicity at copper(-I) in a compound with a Cu–Mg bond by Ross A. Jackson, Nicholas J. Evans, Dawid J. Babula, Thomas M. Horsley Downie, Rex S. C. Charman, Samuel E. Neale, Mary F. Mahon, David J. Liptrot

“…The Cu-Mg bond acts as a source of the cupride anion, transferring the NHC-copper fragment to electrophilic s-, p-, and d-block atoms to make known and new copper-containing compounds.…”
Get full text

Structural and Electrochemical Investigation of Li1.02Mn1.92Al0.02Fe0.02Cr0.02O4 - x Fx (x=0, 0.08) Synthesized by Solid-State Method by Hai-Lang Zhang, Nanchun Xiang

“…The results reveal that the multiple doping spinel Li1.02Mn1.92Al0.02Fe0.02Cr0.02O4F0.08 have better electrochemical performance than the undoped or only metal-element doped material, which may be contributed to the multiple cation and anion doping to lead to a more stable spinel framework with good capacity retention rate.…”
Get full text

Effects of chromophore interaction in photophysics and photochemistry of cyanine dyes by A. S. Tatikolov, Zh. A. Krasnaya, L. A. Shvedova, V. A. Kuzmin

“…Spectral and fluorescent properties of ketocyanine dyes (polyenic bis-ω,ω′-aminoketones) and cation-anionic polymethine dyes of various structures were studied. …”
Get full text

Extractive Spectrophotometric Determination of Bismuth(III) in Water Using Some Ion Pairing Reagents by Abdulaziz S. Bashammakh

“…The two methods were based upon the formation of yellow colored ternary complex ion associates of tetraiodobismuth(III) complex anion, BiI4- with the ion-pairing reagent 2,3,5-tetraphenyltetrazoliumchloride (Tz+.Cl–) and 1, 10 phenanthroline (Phen) in sulfuric acid medium. …”
Get full text

Phosphate Ion Removal from Aqueous Solution Using an Iron Oxide-Coated Fly Ash Adsorbent by Shuhua Yao, Jinyan Li, Zhongliang Shi

“…It was found that the adsorption properties of the composite adsorbent towards phosphate ions depended on the pH value of the solution and the anion concentration in the same. The equilibrium data were analyzed using the Langmuir and Freundlich isotherms, from which it was shown that the adsorption capacities for phosphate ions at pH 3.0 were 27.39 mg/g for iron oxide/fly ash and 18.90 mg/g for fly ash. …”
Get full text

Effect of Electron Beam Generated X-ray Pretreatment on Postharvest Storage Quality of the Mushroom Agaricus bisporus by CUI Yuan, ZHONG Yuanyuan, YU Jiangtao, BAI Junqing, MA Ji, LI Mei

“…Different from the other irradiation doses, the 0.9 kGy treatment effectively delayed the rate of superoxide anion radical production, reduced the accumulation of reactive oxygen species (ROS), enhanced the activities of superoxide dismutase (SOD) and catalase (CAT), and inhibited microbial growth. …”
Get full text

Purification, Physicochemical Properties, and Epitope Analysis of Sarcoplasmic Calcium-Binding Protein from Penaeus vannamei by CHEN Wei, ZHOU Junjun, CHEN Yachun, JIA Yingmin, MA Aijin

“…The results showed that the purified protein, which was obtained by successive steps of crude protein extraction, ammonium sulfate fractionation and anion exchange chromatography and exhibited a molecular mass of 21.6 kDa, was identified as SCP with a peptide coverage of 93.26%. …”
Get full text

The hydrochemistry of Angwan Mallam and environs (PART OF KEFFI SHEET 208 NE) by Adama Baba, Olalekan Agboola Olowoyeye

“…The result of the water analysis shows the major cations, anions, and heavy element: Mg+, Ca2+, Na+, K+, SO42-, NO3-, Cl-,, HCO3 - , and Fe, Cu, Pb. …”
Get full text

Evidence of the Complexity of Gene Expression Analysis in Fish Wild Populations by Mbaye Tine

“…The present work examines the induction of the band 3 anion transport protein, mitogen-activated protein kinase, and lactate dehydrogenase, respectively related to osmolyte transport, cell volume regulation, and energy production in the gills of two tilapia strains exposed to either freshwater or hypersaline water. …”
Get full text

A Potential Dubin-Johnson Syndrome Imaging Agent: Synthesis, Biodistribution, and MicroPET Imaging by Jeongsoo Yoo, David E. Reichert, Joonyoung Kim, Carolyn J. Anderson, Michael J. Welch

“…Dubin-Johnson syndrome (DJS) is caused by a deficiency of the human canalicular multispecific organic anion transporter (cMOAT). A new lipophilic copper-64 complex of 1,4,7-tris(carboxymethyl)-10-(tetradecyl)-1,4,7,10-tetraazadodecane (5) was prepared and evaluated for potential as a diagnostic tool for DJS. …”
Get full text

Neurotransmitter-bound bestrophin channel structures reveal small molecule drug targeting sites for disease treatment by Aaron P. Owji, Jingyun Dong, Alec Kittredge, Jiali Wang, Yu Zhang, Tingting Yang

“…Abstract Best1 and Best2 are two members of the bestrophin family of anion channels critically involved in the prevention of retinal degeneration and maintenance of intraocular pressure, respectively. …”
Get full text

Gastric Pneumatosis in the Setting of Diabetic Ketoacidosis by Mohammed Rifat Shaik, Chet Ranabhat, Nishat Anjum Shaik, Akshay Duddu, Zaid Bilgrami, Guofeng Xie

“…Initial evaluation revealed elevated blood glucose levels, an anion gap metabolic acidosis, and evidence of gastric pneumatosis on imaging. …”
Get full text

The hydrochemistry of Angwan Mallam and environs (PART OF KEFFI SHEET 208 NE) by Adama Baba, Olalekan Agboola Olowoyeye

“…The result of the water analysis shows the major cations, anions, and heavy element: Mg+, Ca2+, Na+, K+, SO42-, NO3-, Cl-,, HCO3 - , and Fe, Cu, Pb. …”
Get full text

Modulation of nitric oxide synthase activity in macrophages by P. G. Jorens, K. E. Matthys, H. Bult

“…NO decomposes into other nitrogen oxides such as nitrite (NO2−) and nitrate (NO3−), and in the presence of superoxide anion to the potent oxidizing agent peroxynitrite (ONOO−). …”
Get full text

Role of Oxidants in Interstitial Lung Diseases: Pneumoconioses, Constrictive Bronchiolitis, and Chronic Tropical Pulmonary Eosinophilia by William N. Rom

“…Oxidants such as superoxide anion, hydrogen peroxide, and myeloperoxidase from activated inflammatory cells in the lower respiratory tract contribute to inflammation and injury. …”
Get full text

Klebsiella pneumoniae-derived extracellular vesicles impair endothelial function by inhibiting SIRT1 by Xinxin Li, Jinghua Cui, Zanbo Ding, Ziyan Tian, Yiming Kong, Linghai Li, Yang Liu, Wen Zhao, Xueying Chen, Han Guo, Zhengshuo Cui, Xinwei Li, Jing Yuan, Huina Zhang

“…Endothelium-dependent relaxation was measured using a wire myograph after in vivo or ex vivo treatment with K.pn EVs. Superoxide anion production was measured by confocal microscopy and HUVEC senescence was assessed by SA-β-gal activity. …”
Get full text

Surface Chemistry Aspects of Ion Exchange in Basic Copper Salts by Sebastian Skupiński, Marta Kalbarczyk, Daniel Kamiński, Marek Kosmulski

“…Brochantite can be converted into paratacamite, basic copper bromide, and copper phthalate by shaking the powder with solutions containing excess corresponding anions. By contrast, attempts to convert brochantite into basic iodide, acetate, nitrate, or rhodanide in a similar way failed, that is, the powder after shaking with solutions containing excess corresponding anions still showed the powder X-ray diffraction pattern of brochantite. …”
Get full text