Promoting hole transfer for photoelectrochemical water oxidation through a manganese cluster catalyst bioinspired by natural photosystem II.
Abstract A BiVO4 photoanode was combined with bioinspired Mn4O4-cubane, which has a structure and composite similar to those of the oxygen-evolving complex (Mn4CaO5) in photosystem II. The hybrid photoanode exhibited a lower onset potential and higher photocurrent than the pristine photoanode because of the faster kinetics of the reaction and reduced rate of recombination of the carriers. PMID: 32182318 [PubMed - as supplied by publisher] (Source: Chemical Communications)
Source: Chemical Communications - March 17, 2020 Category: Chemistry Authors: Gao B, Wang T, Li Y, Fan X, Gong H, Jiang C, Li P, Huang X, He J Tags: Chem Commun (Camb) Source Type: research

Selenium prevents lithium accumulation and does not disturb basic microelement homeostasis in liver and kidney of rats exposed to lithium.
CONCLUSIONS: The obtained results suggest that selenium could be regarded as an adjuvant into lithium therapy. However, considering the limitations of the present study (the short duration, using only one dose and form of selenium) the continuation of the research seems to be necessary to clarify the influence of selenium supplementation on basic microelements and lithium accumulation in organs during lithium exposure. PMID: 32208591 [PubMed - in process] (Source: Annals of Agricultural and Environmental Medicine : AAEM)
Source: Annals of Agricultural and Environmental Medicine : AAEM - March 17, 2020 Category: Environmental Health Authors: Kiełczykowska M, Polz-Dacewicz M, Kopciał E, Mitrus O, Kurzepa J, Marzec Z, Musik I Tags: Ann Agric Environ Med Source Type: research

Trace metals geochemistry for health assessment coupled with adsorption remediation method for the groundwater of Lorong Serai 4, Hulu Langat, west coast of Peninsular Malaysia
AbstractThe research study was carried out to evaluate trace metals (Pb, Cd, Se, Al, Mn, Cu, Zn, Fe, As, Ni, Cr, and Ag) concentrations in groundwater of Lorong Serai 4, Hulu Langat, Selangor, Malaysia. Additionally, the research study focused on determining non-carcinogenic and carcinogenic health risks, sources of the contaminants, and effective remediation methods. The results show that the concentration levels of Pb, Cd, Se, Al, Cu, Zn, Ni, Cr, and Ag are lower than their corresponding permissible limits, while Fe, Mn, and As concentrations exceed their acceptable limit. The hazard index of the groundwater in the area ...
Source: Environmental Geochemistry and Health - March 16, 2020 Category: Environmental Health Source Type: research

Advanced biological sequential treatment of mature landfill leachate using aerobic activated sludge SBR and fungal bioreactor
This study utilizedPenicillium spp. to treat mature landfill leachate (MLL) in a continuous bioreactor and batch experimental tests under non-sterile conditions. MLL characteristics such as chemical oxygen demand (COD), soluble COD (sCOD), total carbon (TC), total organic carbon (TOC), and color removal efficiency were determined. The lignocellulosic enzymatic activity of laccase (Lac), lignin-peroxidase (LiP), and manganese-peroxidase (MnP) was also determined. The batch experimental test was carried out with raw and pretreated MLL containing the initial NH4+–N concentrations of 0, 105, 352, and 914 mg/L. A max...
Source: Journal of Environmental Health Science and Engineering - March 16, 2020 Category: Environmental Health Source Type: research

The role of diffusion tractography in refining glial tumor resection
AbstractPrimary brain tumors are notoriously hard to resect surgically. Due to their infiltrative nature, finding the optimal resection boundary without damaging healthy tissue can be challenging. One potential tool to help make this decision is diffusion-weighted magnetic resonance imaging (dMRI) tractography. dMRI exploits the diffusion of water molecule along axons to generate a 3D modelization of the white matter bundles in the brain. This feature is particularly useful to visualize how a tumor affects its surrounding white matter and plan a surgical path. This paper reviews the different ways in which dMRI can be used...
Source: Anatomy and Embryology - March 16, 2020 Category: Anatomy Source Type: research

Interactions between iron and manganese in neurotoxicity.
eth J Abstract The essential and naturally occurring transition metal manganese (Mn) is present in the soil, water, air, and various foods. Manganese can accumulate in the brain if the Mn intake or exposure is excessive and this can result in neurotoxic effects. Manganese is important for the proper activation of different metabolic and antioxidant enzymes. There are numerous Mn importers and exporters. However, the exact transport mechanism for Mn is not fully understood. On the other hand, iron (Fe) is another well-known essential metal, which has redox activity in addition to chemical characteristics resembling...
Source: Archives of Toxicology - March 16, 2020 Category: Toxicology Authors: Bjørklund G, Dadar M, Peana M, Rahaman MS, Aaseth J Tags: Arch Toxicol Source Type: research

The role of diffusion tractography in refining glial tumor resection.
Abstract Primary brain tumors are notoriously hard to resect surgically. Due to their infiltrative nature, finding the optimal resection boundary without damaging healthy tissue can be challenging. One potential tool to help make this decision is diffusion-weighted magnetic resonance imaging (dMRI) tractography. dMRI exploits the diffusion of water molecule along axons to generate a 3D modelization of the white matter bundles in the brain. This feature is particularly useful to visualize how a tumor affects its surrounding white matter and plan a surgical path. This paper reviews the different ways in which dMRI c...
Source: Brain Structure and Function - March 16, 2020 Category: Neuroscience Authors: Vanderweyen DC, Theaud G, Sidhu J, Rheault F, Sarubbo S, Descoteaux M, Fortin D Tags: Brain Struct Funct Source Type: research

Mutated ATP10B increases Parkinson ’s disease risk by compromising lysosomal glucosylceramide export
AbstractParkinson ’s disease (PD) is a progressive neurodegenerative brain disease presenting with a variety of motor and non-motor symptoms, loss of midbrain dopaminergic neurons in the substantia nigra pars compacta and the occurrence of α-synuclein-positive Lewy bodies in surviving neurons. Here, we performed w hole exome sequencing in 52 early-onset PD patients and identified 3 carriers of compound heterozygous mutations in the ATP10B P4-type ATPase gene. Genetic screening of a Belgian PD and dementia with Lewy bodies (DLB) cohort identified 4 additional compound heterozygous mutation carriers (6/617 PD p a...
Source: Acta Neuropathologica - March 14, 2020 Category: Neurology Source Type: research

Evaluation of in vivo anti-inflammatory and anti-angiogenic attributes of methanolic extract of Launaea spinosa
This study was conducted to evaluate anti-inflammatory and anti-angiogenic activities of methanol extract ofLaunaea spinosa. Extraction was performed by maceration and the resultant green coloured extract was labelled asLs.Me. Solubility analysis showed thatLs.Me was miscible with distilled water, normal saline, ethanol and methanol. Metal analysis following acid digestion method exhibited the presence of copper, magnesium, manganese, iron, zinc and calcium. Phytochemical analysis confirmed the presence of different classes of secondary metabolites inLs.Me. HPLC analysis showed the presence of quercetin, gallic acid, caffe...
Source: Inflammopharmacology - March 14, 2020 Category: Drugs & Pharmacology Source Type: research

Synchronized enhancement of thermoelectric properties of higher manganese silicide by introducing Fe and Co nanoparticles
Publication date: Available online 13 March 2020Source: Nano EnergyAuthor(s): Gwansik Kim, Hyun-Sik Kim, Ho Seong Lee, Jeongmin Kim, Kyu Hyoung Lee, Jong Wook Roh, Wooyoung Lee (Source: Nano Energy)
Source: Nano Energy - March 13, 2020 Category: Nanotechnology Source Type: research

Manganese oxide functionalized silk fibers for enzyme mimics application
Publication date: Available online 12 March 2020Source: Reactive and Functional PolymersAuthor(s): Manish Singh, Estera S. Dey, Cedric Dicko (Source: Reactive and Functional Polymers)
Source: Reactive and Functional Polymers - March 13, 2020 Category: Chemistry Source Type: research

Maternal blood metal and metalloid concentrations in association with birth outcomes in Northern Puerto Rico.
CONCLUSION: As the PROTECT cohort has lower Pb concentrations (GM = 0.33 μg/dL) compared to the mainland US, our findings suggest that low-level prenatal lead exposure, as well as elevated Mn and Zn exposure, may adversely affect birth outcomes. Improved understanding on environmental factors contributing to preterm birth, together with sustainable technologies to remove contamination, will have a direct impact in Puerto Rico and elsewhere. PMID: 32179314 [PubMed - as supplied by publisher] (Source: Environment International)
Source: Environment International - March 13, 2020 Category: Environmental Health Authors: Ashrap P, Watkins DJ, Mukherjee B, Boss J, Richards MJ, Rosario Z, Vélez-Vega CM, Alshawabkeh A, Cordero JF, Meeker JD Tags: Environ Int Source Type: research

The Relationship between Selected Bioelements and Depressiveness Associated with Testosterone Deficiency Syndrome in Aging Men.
Conclusions: The results of our study demonstrated a relationship between manganese and chromium concentrations with the incidence of depression in men aged 50 years and older with a concurrent testosterone deficiency syndrome. This may indicate that there is a correlation between these bioelements, as well as emotional disorders manifested as depressive symptoms in aging men with a diagnosed testosterone deficiency. PMID: 32183007 [PubMed - in process] (Source: Medicina (Kaunas))
Source: Medicina (Kaunas) - March 13, 2020 Category: Universities & Medical Training Authors: Rotter I, Wiatrak A, Rył A, Kotfis K, Ciosek Ż, Laszczyńska M, Sipak-Szmigiel O, Szylińska A Tags: Medicina (Kaunas) Source Type: research

Nanobody-Ferritin Conjugate for Targeted Photodynamic Therapy.
Abstract Ferritin is an iron-storage protein nanocage assembled by 24 subunits. The hollow cavity of ferritin enables its encapsulation of various therapeutic agents. Antibody-ferritin conjugate provides an effective approach for the targeted drug delivery. However, the complicated preparation and protein stability hampers wide applications of this system. Herein, we designed a novel nanobody-ferritin platform (Nb-Ftn) for targeted drug delivery. The site-specific conjugation between nanobody and ferritin is achieved by transglutaminase catalyzed protein ligation. This ligation strategy allows the Nb-conjugation a...
Source: Chemistry - March 12, 2020 Category: Chemistry Authors: Liu M, Zhu Y, Wu T, Cheng J, Liu Y Tags: Chemistry Source Type: research

Reversible redox-responsive 1H/19F MRI molecular probes.
Abstract Herein we report a pair of redox-responsive manganese complexes Mn(iii)/(ii)-N,N'-bis(2-hydroxy-4-trifluoromethylbenzyl)ethylenediamine-N,N'-diacetate (HTFBED, L1), which are water soluble and biologically interconvertible, as reversible redox-responsive probes in 1H/19F MRI for detecting and imaging biological redox species, offering a means to access valuable redox information associated with various diseases. PMID: 32163087 [PubMed - as supplied by publisher] (Source: Chemical Communications)
Source: Chemical Communications - March 12, 2020 Category: Chemistry Authors: Chen H, Tang X, Gong X, Chen D, Li A, Sun C, Lin H, Gao J Tags: Chem Commun (Camb) Source Type: research

Facile synthesis of manganese oxide nanostructures with different crystallographic phase and morphology for supercapacitors
Publication date: 25 July 2020Source: Journal of Alloys and Compounds, Volume 830Author(s): Yankai Yuan, Jingyi Zhu, Ying Wang, Shuni Li, Pujun Jin, Yu Chen (Source: Journal of Alloys and Compounds)
Source: Journal of Alloys and Compounds - March 11, 2020 Category: Chemistry Source Type: research

Structure –function correlations in mononuclear manganese(III) spin crossover systems with a big conjugated hexadentate Schiff-base ligand
Dalton Trans., 2020, Advance Article DOI: 10.1039/C9DT04882K, PaperSheng-Ze Zhao, Chun-Yan Qin, Shi Wang, Masahiro Yamashita, Yong-Hua Li, Wei Huang Different SCO processes with a big conjugated hexadentate Schiff-base ligand reported in d4 SCO chemistry. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - March 11, 2020 Category: Chemistry Authors: Sheng-Ze Zhao Source Type: research

Quantitative analysis of the coupling between proton and electron transport in peptide/manganese oxide hybrid films
Phys. Chem. Chem. Phys., 2020, Accepted Manuscript DOI: 10.1039/C9CP05581A, PaperMisong Ju, Ouk Hyun Cho, Jaehun Lee, Seok Daniel Namgung, Min-Kyu Song, Mani Balamurugan, Jang-Yeon Kwon, Ki Tae Nam Understanding how electrons and protons move in a coupled manner and affect one another is important to the design of proton-electron conductors and achieving biological transport in synthetic materials. In... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)
Source: RSC - Phys. Chem. Chem. Phys. latest articles - March 11, 2020 Category: Chemistry Authors: Misong Ju Source Type: research

IJERPH, Vol. 17, Pages 1811: Biological Monitoring of Occupational Exposure to Metals in Electric Steel Foundry Workers and Its Contribution to 8-Oxo-7,8-Dihydro-2 ′-Deoxyguanosine Levels
In this study, the urinary concentrations of selected metals in workers from an electric steel foundry in Tunisia were assessed and compared with existing biological limit values and general population reference values. Moreover, the association between oxidative DNA damage, measured as urinary 8-oxo-7,8-dihydro-2’deoxyguanosine (8-oxodG) and co-exposure to metals and polycyclic aromatic hydrocarbons (PAHs) was evaluated. Urinary levels of 12 metals were determined by inductively coupled plasma-mass spectrometry (ICP-MS) in end-shift spot samples from 89 workers. The urinary levels of phenanthrene (U-PHE), as...
Source: International Journal of Environmental Research and Public Health - March 11, 2020 Category: Environmental Health Authors: Laura Campo Mariem Hanchi Sabrina Sucato Dario Consonni Elisa Polledri Luca Olgiati Dalila Saidane-Mosbahi Silvia Fustinoni Tags: Article Source Type: research

Acid-activated Sodium Bentonite and Kaolin Clay: Comparative Study by Physicochemical Properties.
CONCLUSION: The novelty of this study is about sodium bentonite characterization and the results show the prominent behaviour with structural, elemental, morphological, and thermal analysis. Acid-activated kaolin sample has less effect in comparison with acid-activated sodium bentonite. As the removal of the hydroxyl group of compounds has been reported through FT-IR and XRD analysis also some other industries like ceramic and paper industries may have accepted these types of modified minerals for special production with a simple process. PMID: 32160844 [PubMed - as supplied by publisher] (Source: Combinatorial Chemis...
Source: Combinatorial Chemistry and High Throughput Screening - March 11, 2020 Category: Chemistry Authors: Kumar A, Lingfa P Tags: Comb Chem High Throughput Screen Source Type: research

An aqueous manganese –lead battery for large-scale energy storage
J. Mater. Chem. A, 2020, Advance Article DOI: 10.1039/D0TA01484B, PaperJianhang Huang, Lei Yan, Duan Bin, Xiaoli Dong, Yonggang Wang, Yongyao Xia A manganese –lead battery based on MnO2/Mn2+ cathodic reaction and PbSO4/Pb anodic reaction was demonstrated. With an optimized deposition behavior and high solubility of MnO2, high areal capacity (50 mA h cm−2) and energy density (187  W h L−1) can be obtained. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - March 10, 2020 Category: Chemistry Authors: Jianhang Huang Source Type: research

Trace manganese detection via differential pulse cathodic stripping voltammetry using disposable electrodes: additively manufactured nanographite electrochemical sensing platforms
This article is licensed under aCreative Commons Attribution-NonCommercial 3.0 Unported Licence.Craig E. Banks, Christopher Foster, Edmund keefe, Rodrigo Alejandro Abarza Munoz, Diego Pessoa Rocha, Garry Buller Additive manufacturing is a promising technology for the rapid and economical fabrication of portable electroanalytical devices. Such additively manufactured electrodes are fabricated using a range of plastic feedstock ’s (filaments) with... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Analyst latest articles)
Source: RSC - Analyst latest articles - March 10, 2020 Category: Chemistry Authors: Craig E. Banks Source Type: research

[ASAP] Low-Strain Reticular Sodium Manganese Oxide as an Ultrastable Cathode for Sodium-Ion Batteries
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.0c00788 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - March 10, 2020 Category: Materials Science Authors: Wen-Jing Shi †?, Ding Zhang†‡?, Xiao-Meng Meng†, Chen-Xun Bao†, Shou-Dong Xu†, Liang Chen†, Xiao-Min Wang‡, Shi-Bin Liu*†, and Yu-Cheng Wu*‡§ Source Type: research

Phytoremediation potential of castor (Ricinus communis L.) in the soils of the abandoned copper mine in Northern Oman: implications for arid regions.
Abstract Contamination levels of copper (Cu) and other heavy metals are very high in the soils of the abandoned copper mine of Lasail in the north western Hajar Mountains of Oman. Environment-friendly approaches such as phytoremediation are needed to clean and rehabilitate these areas to their natural status. In the present study, the phytoremediation potential of castor, Ricinus communis L., was evaluated for copper and other heavy metals by growing it in different types of Cu-mine soils and slags. Growth parameters such as shoot height and biomass weight (fresh and dry) were evaluated. Castor showed a high toler...
Source: Environmental Science and Pollution Research International - March 10, 2020 Category: Environmental Health Authors: Palanivel TM, Pracejus B, Victor R Tags: Environ Sci Pollut Res Int Source Type: research

Comparison of manganese uptake and transport of maize seedlings by mini-PET camera.
cs Z Abstract Manganese is one of the most important essential micronutrients for the plants. To monitor its uptake and transport by radioactive tracking is a powerful method due to the no carrier added 52Mn in 10-12 moldm-3 concentration range. The generally used method is to measure the radioactivity of cut parts of plants by gamma-spectrometry. Only few studies reported about noninvasive measurement, using pairs of detectors connected in coincidence. We use a full ring MiniPET machine for this purpose to dynamically visualize the uptake and distribution of the radionuclide in 4D. The results are controlled wit...
Source: Applied Radiation and Isotopes - March 10, 2020 Category: Radiology Authors: Brezovcsik K, Veres S, Molnár J, Fenyvesi A, Szűcs Z Tags: Appl Radiat Isot Source Type: research

Molecules, Vol. 25, Pages 1234: Surface Compositional Change of Iron Oxide Porous Nanorods: A Route for Tuning Their Magnetic Properties
Falqui The capability of synthesizing specific nanoparticles (NPs) by varying their shape, size and composition in a controlled fashion represents a typical set of engineering tools that tune the NPs magnetic response via their anisotropy. In particular, variations in NP composition mainly affect the magnetocrystalline anisotropy component, while the different magnetic responses of NPs with isotropic (i.e., spherical) or elongated shapes are mainly caused by changes in their shape anisotropy. In this context, we propose a novel route to obtain monodispersed, partially hollow magnetite nanorods (NRs) by colloidal synt...
Source: Molecules - March 9, 2020 Category: Chemistry Authors: Casu Loche Lentijo-Mozo Falqui Tags: Article Source Type: research

Scope and mechanism of nitrile dihydroboration mediated by a β-diketiminate manganese hydride catalyst.
Scope and mechanism of nitrile dihydroboration mediated by a β-diketiminate manganese hydride catalyst. Chem Commun (Camb). 2020 Mar 09;: Authors: Nguyen TT, Kim JH, Kim S, Oh C, Flores M, Groy TL, Baik MH, Trovitch RJ Abstract The manganese hydride dimer, [(2,6-iPr2PhBDI)Mn(μ-H)]2, was found to mediate nitrile dihydroboration, rendering it the first manganese catalyst for this transformation. Stoichiometric experiments revealed that benzonitrile insertion affords [(2,6-iPr2PhBDI)Mn(μ-NCHC6H5)]2 en route to N,N-diborylamine formation. Density functional theory calculations reveal the precis...
Source: Chemical Communications - March 9, 2020 Category: Chemistry Authors: Nguyen TT, Kim JH, Kim S, Oh C, Flores M, Groy TL, Baik MH, Trovitch RJ Tags: Chem Commun (Camb) Source Type: research

Exendin-4 protects the hearts of rats from ischemia/reperfusion injury by boosting antioxidant levels and inhibition of JNK/p66 Shc/NADPH axis.
In conclusion, Exendin-4 cardioprotective effect in I/R hearts is mediated mainly by antioxidant effect and inhibition of JNK/P66 Shc/NADPH oxidase. PMID: 32149419 [PubMed - as supplied by publisher] (Source: Clinical and Experimental Pharmacology and Physiology)
Source: Clinical and Experimental Pharmacology and Physiology - March 9, 2020 Category: Drugs & Pharmacology Authors: Eid RA, Zaki MSA, Alaa Eldeen M, Alshehri MM, Shati AA, El-Kott AF Tags: Clin Exp Pharmacol Physiol Source Type: research

Astrocyte swelling in hepatic encephalopathy: molecular perspective of cytotoxic edema
This article discusses the possible mechanisms of astrocyte swelling which related to hyperammonia, including the possible roles of molecules like glutamine, lactate, aquaporin-4 water channel, 18 KDa translocator protein, glial fibrillary acidic protein, alanine, glutathione, toll-like receptor 4, epidermal growth factor receptor, glutamate, and manganese, as well as inflammation, oxidative stress, mitochondrial permeability transition, ATP depletion, and astrocyte senescence. All these agents and factors may be targeted in therapeutic approaches to HE. (Source: Metabolic Brain Disease)
Source: Metabolic Brain Disease - March 7, 2020 Category: Neurology Source Type: research

[ASAP] Interaction of Slow Electrons with Thermally Evaporated Manganese(II) Acetylacetonate Complexes
The Journal of Physical Chemistry ADOI: 10.1021/acs.jpca.9b10119 (Source: Journal of Physical Chemistry A)
Source: Journal of Physical Chemistry A - March 6, 2020 Category: Chemistry Authors: Janina Kopyra †, Franck Rabilloud‡, and Hassan Abdoul-Carime*§ Source Type: research

The transcription factor REST up-regulates tyrosine hydroxylase and antiapoptotic genes and protects dopaminergic neurons against manganese toxicity [Neurobiology]
We report that REST binds to RE1 consensus sites in the TH gene promoter, stimulates TH transcription, and increases TH mRNA and protein levels in dopaminergic cells. REST binding to the TH promoter recruited the epigenetic modifier cAMP-response element-binding protein–binding protein/p300 and thereby up-regulated TH expression. REST relieved Mn-induced repression of TH promoter activity, mRNA, and protein levels and also reduced Mn-induced oxidative stress, inflammation, and apoptosis in dopaminergic neurons. REST reduced Mn-induced proinflammatory cytokines, including tumor necrosis factor α, interleukin 1&b...
Source: Journal of Biological Chemistry - March 6, 2020 Category: Chemistry Authors: Edward Pajarillo, Asha Rizor, Deok-Soo Son, Michael Aschner, Eunsook Lee Tags: Molecular Bases of Disease Source Type: research

IJERPH, Vol. 17, Pages 1731: Distribution of Potential Harmful Trace Elements and Potential Ecological Risk in the Jiulongchi Wetland of Fanjing Mountain, Southwest China
This study could provide targeted strategies for the environmental protection and management of the Property and give scientific evidence for the pollution prevention in southwest China. (Source: International Journal of Environmental Research and Public Health)
Source: International Journal of Environmental Research and Public Health - March 6, 2020 Category: Environmental Health Authors: Weidan Shen Kangning Xiong Yang Gao Mingying Quan Haijun Peng Ting Yang Linfeng He Kunshan Bao Tags: Article Source Type: research

Bone Mineral Composition Among Long-Term Parenteral Nutrition Patients: Postmortem Assessment of Calcium, Phosphorus, Magnesium, and Select Trace Elements.
Abstract BACKGROUND: Patients receiving long-term parenteral nutrition (PN) treatment are at risk of developing metabolic bone diseases (MBDs). The bone compartment serves as a repository for a range of metal(loid)s that are administered intravenously to patients via PN solutions. Thus, the mineral composition of patient bones may be linked to the development of MBDs in this group. METHODS: We measured 12 elements in bone samples obtained post mortem from 7 long-term (2-21 years) PN patients and 18 control bones obtained from hip/knee replacement surgery. The samples were cleaned, digested, and subsequently a...
Source: JPEN Journal Of Parenteral And Enteral Nutrition - March 6, 2020 Category: Nutrition Authors: Galusha AL, Howard LJ, Kruger PC, Marks T, Parsons PJ Tags: JPEN J Parenter Enteral Nutr Source Type: research

Streptozotocin (STZ)-Induced Diabetes Affects Tissue Trace Element Content in Rats in a Dose-Dependent Manner.
The objective of the present study was investigation of tissue trace element distribution in a streptozotocin model of DM1 in rats. DM1 was modeled in 2-month-old male Wistar rats (n = 30) using intraperitoneal injection of 45 mg/kg b.w. (STZ1) and 55 mg/kg b.w. streptozotocin (STZ2), whereas control animals were injected with physiological saline. The rats were subjected to oral glucose tolerance test (OGTT) and HbA1c level assessment at day 14. At day 30, blood serum, liver, kidney, and heart samples were collected for tissue trace element assessment using inductively coupled plasma mass spectrome...
Source: Biological Trace Element Research - March 6, 2020 Category: Biology Authors: Karganov MY, Alchinova IB, Tinkov AA, Medvedeva YS, Lebedeva MA, Ajsuvakova OP, Polyakova MV, Skalnaya MG, Burtseva TI, Notova SV, Khlebnikova NN, Skalny AV Tags: Biol Trace Elem Res Source Type: research

[ASAP] A Fungal-Mediated Cryptic Selenium Cycle Linked to Manganese Biogeochemistry
Environmental Science& TechnologyDOI: 10.1021/acs.est.9b06022 (Source: Environmental Science and Technology)
Source: Environmental Science and Technology - March 5, 2020 Category: Environmental Health Authors: managing.editor at est.acs.org (American Chemical Society) Source Type: research

[ASAP] Influence of Magnetic Field on the Two-Photon Absorption and Hyper-Rayleigh Scattering of Manganese –Zinc Ferrite Nanoparticles
The Journal of Physical Chemistry CDOI: 10.1021/acs.jpcc.9b10208 (Source: The Journal of Physical Chemistry C)
Source: The Journal of Physical Chemistry C - March 5, 2020 Category: Chemistry Authors: Eduardo S. Gonc ¸alves*†, Leandro H. Z. Cocca‡, Wagner W. R. Araujo†, Kinnari Parekh¶, Cristiano L. P. Oliveira†, Jonathas P. Siqueira§, Cleber R. Mendonc¸a‡, Leonardo De Boni‡, and Anto^nio M. Figueiredo Neto† Source Type: research

The S. mutans mntE gene encodes a manganese efflux transporter
In conclusion, theS. mutans SMU_1176 gene, which we renamedmntE, is a manganese efflux transporter that contributes to essential metal ion homeostasis as part of the SloR regulon. (Source: Molecular Oral Microbiology)
Source: Molecular Oral Microbiology - March 4, 2020 Category: Microbiology Authors: Joseph O ’Brien, Alexander Pastora, Andrew Stoner, Grace Spatafora Tags: ORIGINAL ARTICLE Source Type: research

Reversible redox-responsive 1H/19F MRI molecular probes
Chem. Commun., 2020, Accepted Manuscript DOI: 10.1039/D0CC00778A, CommunicationHongming Chen, Xiaoxue Tang, Xuanqing Gong, Dongxia Chen, Ao Li, Chengjie Sun, Hongyu Lin, Jinhao Gao Herein we report a pair of redox-responsive manganese complexes Mn(III)/(II)-N,N'-bis(2-hydroxy-4-trifluoromethylben-zyl)ethylenediamine-N,N'-diacetate (HTFBED, L1), which are water soluble and biologically interconvertible, as reversible redox-responsive probes in 1H/19F MRI for detecting and imaging... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - March 4, 2020 Category: Chemistry Authors: Hongming Chen Source Type: research

IJERPH, Vol. 17, Pages 1665: Prenatal Manganese Exposure and Long-Term Neuropsychological Development at 4 Years of Age in a Population-Based Birth Cohort
Conclusion: Our results suggest that prenatal Mn concentrations measured in newborns’ hair do not affect cognitive or motor development at 4 years of age in boys or in girls at the observed Mn levels. (Source: International Journal of Environmental Research and Public Health)
Source: International Journal of Environmental Research and Public Health - March 4, 2020 Category: Environmental Health Authors: Andiarena Irizar Molinuevo Urbieta Babarro Subiza-P érez Santa-Marina Ibarluzea Lertxundi Tags: Article Source Type: research

Molecular identification, differential expression and protective roles of iron/manganese superoxide dismutases in the green algae Closterium ehrenbergii against metal stress.
Abstract The green microalgae Closterium ehrenbergii is an ideal organism for ecotoxicology assessments; however, its toxicogenomics has been insufficiently examined. Here, we identified three iron/manganese superoxide dismutase (SOD) genes (designated as CeFeSOD1, CeFeSOD2, and CeMnSOD) from C. ehrenbergii and examined their expressional patterns for four metals (iron, manganese, copper, and nickel). These genes encoded 362, 224, and 245 amino acids, respectively; signal-peptide analysis showed that they were differentially located in chloroplasts, cytosol, or mitochondria. Real-time PCRs revealed differential ex...
Source: European Journal of Protistology - March 4, 2020 Category: Microbiology Authors: Wang H, Ki JS Tags: Eur J Protistol Source Type: research

Structure −function correlations in mononuclear manganese(III) spin crossover system with big conjugated hexadentate Schiff-base ligands
Dalton Trans., 2020, Accepted Manuscript DOI: 10.1039/C9DT04882K, PaperSheng-Ze Zhao, Chun-Yan Qin, Shi Wang, Masahiro Yamashita, Yong-hua Li, Wei Huang This paper reports the syntheses, crystal structures and magnetic properties of spin crossover (SCO) salts of formula [Mn(naphth-sal-N-1,5,8,12)]SbF6 (1), [Mn(naphth-sal-N-1,5,8,12)]AsF6 (2), [Mn(naphth-sal-N-1,5,8,12)]PF6 •1/2CH3OH (3) and [Mn(naphth-sal-N-1,5,8,12)]ClO4 (4), where (naphth-sal-N-1,5,8,12)2− (2,2'-((1E,14E)-2,6,10,14-tetraazapentadeca-1,14-diene-1,15-diyl)diphenolate) is... The content of this RSS Feed (c) The Royal Society of Chemistry (Source:...
Source: RSC - Dalton Trans. latest articles - March 3, 2020 Category: Chemistry Authors: Sheng-Ze Zhao Source Type: research

Nutrient-toxic element mixtures and the early postnatal gut microbiome and in a United States longitudinal birth cohort.
CONCLUSIONS: Early postnatal toxic and nutrient elemental exposures are associated with differences in the infant microbiome. Further research is needed to clarify the whether these alterations are a biomarker of exposure or if they have implications for child and lifelong health. PMID: 32142916 [PubMed - as supplied by publisher] (Source: Environment International)
Source: Environment International - March 3, 2020 Category: Environmental Health Authors: Laue HE, Moroishi Y, Jackson BP, Palys TJ, Madan JC, Karagas MR Tags: Environ Int Source Type: research

CEES-induced ROS accumulation regulates mitochondrial complications and inflammatory response in keratinocytes.
Abstract Reactive oxygen species (ROS) is mainly produced as a by-product from electron transport chain (ETC) of mitochondria and effectively eliminated by cellular antioxidants. However, 2-chloroethyl ethyl sulfide (CEES) exposure to keratinocytes declined antioxidant capacity and increased accumulation of ROS triggered alteration of mitochondrial activity and apoptosis is lacking. Our findings demonstrated that the electron leakage from the impaired ETC, leading to the accumulation of ROS was gradually elevating with increasing concentration of CEES exposure, which decline the activity of superoxide dismutase (S...
Source: Chemico-Biological Interactions - March 3, 2020 Category: Molecular Biology Authors: Sabnam S, Rizwan H, Pal S, Pal A Tags: Chem Biol Interact Source Type: research

Scope and mechanism of nitrile dihydroboration mediated by a β-diketiminate manganese hydride catalyst
Chem. Commun., 2020, Accepted Manuscript DOI: 10.1039/C9CC09921B, CommunicationThao T. Nguyen, Jun-Hyeong Kim, Suyeon Kim, Changjin Oh, Marco Flores, Thomas L Groy, Mu-Hyun Baik, Ryan J. Trovitch The manganese hydride dimer, [(2,6-iPr2PhBDI)Mn( μ-H)]2, was found to mediate nitrile dihydroboration, rendering it the first manganese catalyst for this transformation. Stoichiometric experiments revealed that benzonitrile insertion affords [(2,6-iPr2PhBDI)Mn(μ-NCHC6H5)]2 en route... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - March 2, 2020 Category: Chemistry Authors: Thao T. Nguyen Source Type: research

Promoting holes transfer for photoelectrochemical water oxidation through bioinspired manganese cluster catalyst lessoned from natural photosystem II
Chem. Commun., 2020, Accepted Manuscript DOI: 10.1039/D0CC00955E, CommunicationBin Gao, Tao Wang, Yang Li, Xiaoli Fan, Hao Gong, Cheng Jiang, Peng Li, Xianli Huang, Jianping He The BiVO4 photoanode is combined with bioinspired Mn4O4-cubane, which has a similar structure and composite as the oxygen evolving complex (Mn4CaO5) in photosystem II. The hybrid photoanode exhibits the lower... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - March 2, 2020 Category: Chemistry Authors: Bin Gao Source Type: research

Nutrients, vitamins, probiotics and herbal products: an update of their role in urolithogenesis
AbstractNutrients, vitamins, probiotics, and herbal products may be risk factors, or alternately, protect against the formation of urinary stones. The purpose of this review was to update knowledge of the role of nutraceuticals in renal stone formation. A systematic search of the relevant literature published in PubMed in the last ten years was conducted and a narrative review of the data from the included studies was done. Search screened 513 studies that were reduced to 34 after evaluation by title and abstract; other 38 studies were retrieved by references of the selected studies. Beverages high fluid intake confirmed p...
Source: Urolithiasis - March 2, 2020 Category: Urology & Nephrology Source Type: research

A study on the seasonal transfer of two metals from pasture to animals: health risk assessment.
This study aimed to examine the Mn and Cd concentration from different samples. Sampling was done twice after the interval of 6 months during 2018; five different sites from Chakwal (Pidh, Tobar, Ratoccha, Kalar Kahar Road, Choa Saiden Shah and Chakwal Road, Choa Saiden Shah) were selected. Thirty samples of soil, forage (Acacia nilotica, Ziziphus nummularia, and Acacia modesta), and blood were collected. Forage and soil samples were dried, ground very fine, digested by wet digestion method, and analyzed by atomic absorption spectrophotometer. Samples collected from site I and site II had a very high concentration of ...
Source: Environmental Science and Pollution Research International - March 2, 2020 Category: Environmental Health Authors: Khan ZI, Akhtar M, Ahmad K, Ashfaq A, Nadeem M, Bashir H, Munir M, Malik IS Tags: Environ Sci Pollut Res Int Source Type: research

The Significance of Mobilization and Immobilization of Specific Radionuclides for Optimum Bioleaching Conditions Using Aspergillus lentulus
AbstractGamma spectrometry is applied for measurement of natural radioactivity by Hyper-pure germanium (HPGe) systems during the application of bioleaching optimum conditions in ore and waste samples. The bioleaching of the ore sample using isolated fungusA. lentulus indicate that the bioleaching efficiency of234U,232Th are higher than238U,230Th and235U which may attributed to the effect α-recoil rate for234U, organic matter, clays or iron oxide and or/lower activity concentration of232Th. The immobilization of238U,235U,230Th,214Pb, and214Bi in ore and waste samples could be result from high organic matter content, i...
Source: Physics of Particles and Nuclei Letters - March 1, 2020 Category: Physics Source Type: research

Recent advancements in manganese steels – A review
Publication date: Available online 28 February 2020Source: Materials Today: ProceedingsAuthor(s): Roshan Jacob, S. Raman Sankaranarayanan, S.P. Kumaresh Babu (Source: Materials Today: Proceedings)
Source: Materials Today: Proceedings - February 29, 2020 Category: Materials Science Source Type: research

Manganese oxide doped carbon dots for temperature-responsive biosensing and target bioimaging.
We report on the synthesis of manganese oxide doped CDs (MnOx-CDs) by a hydrothermal strategy using manganese (III) acetylacetonate (Mn(III) (C5H7O2)3) as the only raw materials. The MnOx-CDs exhibit water solubility, favorable biocompatibility, low cytotoxicity, and show blue fluorescence with excitation/emission maxima at 326/442 nm with a quantum yield of 11.3%, allowing efficient cellular imaging. The MnOx-CDs have a reversible temperature-sensitive fluorescent property in vitro within 10-60 °C, which can also be used as a sensitive thermometer in living cells. By a scratch assay, the MnOx-CDs can re...
Source: Analytica Chimica Acta - February 29, 2020 Category: Chemistry Authors: Li C, Qin Z, Wang M, Liu W, Jiang H, Wang X Tags: Anal Chim Acta Source Type: research