9,285 results match your criteria zinc manganese


A carbon-coated spinel zinc cobaltate doped with manganese and nickel as a cathode material for aqueous zinc-ion batteries.

Dalton Trans 2021 Apr 16. Epub 2021 Apr 16.

Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai Engineering Research Center of Heat-exchange System and Energy Saving, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.

Here, a new amorphous material composed of carbon-coated zinc cobaltate doped with manganese and nickel ZNMC@C (ZnNi0.5Mn0.5CoO4@C) with a spinel structure is proposed as a cathode material for use in aqueous zinc-ion batteries. Read More

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Altered serum elements, antioxidants, MDA, and immunoglobulins are associated with an increased risk of seborrheic dermatitis.

Heliyon 2021 Mar 28;7(3):e06621. Epub 2021 Mar 28.

Department of Clinical Pharmacy and Pharmacology, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000, Bangladesh.

Background: The exact mechanism for the pathophysiology of seborrheic dermatitis (SD) remains unknown. According to past knowledge, neuropsychiatric disorders, weak immune responses, fungal infections, antioxidants deficiencies, and inadequate nutrition might involve in SD. Here we evaluated serum trace elements, micronutrients, antioxidants, malondialdehyde (MDA), and immunoglobulins in SD patients. Read More

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In-situ datasets of important physical and bio-chemical parameters in the continental shelf of the northern Bay of Bengal.

Data Brief 2021 Apr 15;35:106947. Epub 2021 Mar 15.

Bangladesh Oceanographic Research Institute, Ramu, Cox's bazar, Bangladesh.

Data equipped with this article were collected from Northern Bay of Bengal (NBoB) wrapping both the eastern and western coast for CTD and sediment samples and only the eastern coast for water sampling. In-situ data of physical parameters, heavy metals, elements, Total Organic Carbon (TOC), nutrients, chlorophyll-a and phaeopigment were sampled across the shallow continental shelf. These data were assembled from 15 CTD points, 76 water samples, and 10 surface sediment samples adjacent to Bangladesh coast. Read More

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Correction to: Erythrocyte concentrations of chromium, copper, manganese, molybdenum, selenium and zinc in subjects with different physical training levels.

J Int Soc Sports Nutr 2021 Apr 14;18(1):30. Epub 2021 Apr 14.

School of Sport Sciences, University of Extremadura, University Avenue, Avenida de la Universidad s/n, 10003, Cáceres, Spain.

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Assessment of heavy metals in farmed shrimp, sampled from Khulna, Bangladesh: An inimical to food safety aspects.

Heliyon 2021 Mar 24;7(3):e06587. Epub 2021 Mar 24.

Department of Aquaculture, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.

The analytical experiment was executed to present detailed reports on the concentration of heavy metals (nickel, iron, zinc, manganese, chromium, lead, and cadmium) in farmed shrimp, and its concomitant human health risks upon consumption. A total of 147 farms from six sub-districts of Khulna were selected for sample collection and concentration of heavy metals were determined by Atomic Absorption Spectrometry (AAS) method, following electro-thermal heater digestion. Ni and Cr were found considerably below the detectable limit (BDL) in four sub-districts, while Cr found in shrimps from Rupsa and Paikgacha were far higher than the maximum recommended limit defined by FAO and WHO. Read More

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Lactobacillus plantarum HFY09 alleviates alcohol-induced gastric ulcers in mice via an anti-oxidative mechanism.

J Food Biochem 2021 Apr 13:e13726. Epub 2021 Apr 13.

Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.

The protective effect of Lactobacillus plantarum HFY09 (LP-HFY09) on alcohol-induced gastric ulcers was investigated. Gastric morphology observation and pathological tissue sections showed that LP-HFY09 effectively relieved gastric tissue injury. The biochemical indicator detection showed that LP-HFY09 increased superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione (GSH), prostaglandin E2 (PGE2), and somatostatin (SS) levels, and decreased malondialdehyde (MDA) levels. Read More

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Translocation factor of heavy metals by elephant grass grown with varying concentrations of landfill leachate.

Environ Sci Pollut Res Int 2021 Apr 10. Epub 2021 Apr 10.

Center of Agrarian Sciences, Federal University of Ceará, Av. Mister Hull s/n Antônio Bezerra, Fortaleza, CE, Brazil.

The aim of this study is to obtain the translocation factor by application of landfill leachate (LL) diluted in public irrigation water (IW). Pennisetum purpureum Schum (elephant grass) was cultivated for 83 days in an experimental water reuse unit. The present work was developed at the Experimental Water Reuse Unit (UERA), on the UFERSA campus in Mossoró, RN, Brazil. Read More

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Selenium source and level on performance, selenium retention and biochemical responses of young broiler chicks.

BMC Vet Res 2021 Apr 9;17(1):151. Epub 2021 Apr 9.

Department of Animal Science, Federal University of Viçosa, Viçosa, 36570900, Brazil.

Background: Selenium (Se) has been recognized as an essential micronutrient for nearly all forms of life. In recent decades, broiler responses to dietary Se supplemental levels and sources have received considerable attention. On environmental grounds, organic trace mineral utilization in practical broiler feeds has been defended due to its higher bioavailability. Read More

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White Tip Silver Needle (Slightly Fermented White Tea) Flavonoids Help Prevent Aging via Antioxidative and Anti-Inflammatory Effects.

Drug Des Devel Ther 2021 31;15:1441-1457. Epub 2021 Mar 31.

Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, 400067, People's Republic of China.

Aim: White tip silver needle, a slightly fermented white tea, is abundant in flavonoids, and it has great significance in terms of D-galactose/lipopolysaccharide-induced aging in mice.

Methods: We analyzed the antioxidant capacity of white tip silver needle flavonoids (WTSNF) in vitro, assessed the effects of WTSNF on organ indexes, pathological changes, liver function indexes, biochemical indicators, molecular biological indicators, and genes related to oxidation and inflammation.

Results: Ultra-high performance liquid chromatography-tandem mass spectrometry results showed that WTSNF contained baicalin, kaempferol, kaempferide, quercetin, isorhamnetin, lespenephryl, and rutin. Read More

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Zinc Import Mediated by AdcABC is Critical for Colonization of the Dental Biofilm by Streptococcus mutans in an Animal Model.

Mol Oral Microbiol 2021 Apr 5. Epub 2021 Apr 5.

Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA.

Trace metals are essential to all domains of life but toxic when found at high concentrations. While the importance of iron in host-pathogen interactions is firmly established, contemporary studies indicate that other trace metals, including manganese and zinc, are also critical to the infectious process. In this study, we sought to identify and characterize the zinc uptake system(s) of S. Read More

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Spatial Distribution of Heavy Metals and Pollution of Environmental Media Around a Used Lead-acid Battery Recycling Center in Ibadan, Nigeria.

J Health Pollut 2021 Mar 2;11(29):210304. Epub 2021 Mar 2.

Department of Environmental Health Sciences, University of Michigan, Ann Arbor, USA.

Background: Heavy metals are usually present in trace amounts in various environmental media such as water, soil, and air, and many are poisonous to human health even at very low concentrations.

Objectives: To assess the risk of heavy metal contamination of water, soil, and plants around a used lead acid battery (ULAB) recycling center in Ibadan, Nigeria.

Methods: Environmental samples (water, soil, and plants) were collected using standard methods and concentrations of arsenic (As), cadmium (Cd), antimony (Sb), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), lead (Pb), selenium (Se), and zinc (Zn) were determined using inductively coupled plasma-optical emission spectrometry at the International Institute of Tropical Agriculture, Ibadan, Nigeria. Read More

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Metals associated neurodegeneration in Parkinson's disease: Insight to physiological, pathological mechanisms and management.

Neurosci Lett 2021 Apr 1;753:135873. Epub 2021 Apr 1.

Neuroscience Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India. Electronic address:

Parkinson's disease (PD) is a deliberately progressive neurological disorder, arises due to degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNpc). The loss of dopaminergic nerves and dopamine deficiency leads to motor symptoms characterized by rigidity, tremor, and bradykinesia. Heavy metals and trace elements play various physiological and pathological roles in the nervous system. Read More

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Metal-Bound Methisazone; Novel Drugs Targeting Prophylaxis and Treatment of SARS-CoV-2, a Molecular Docking Study.

Int J Mol Sci 2021 Mar 15;22(6). Epub 2021 Mar 15.

National Cancer Institute, Cairo University, Giza 11796, Egypt.

SARS-CoV-2 currently lacks effective first-line drug treatment. We present promising data from in silico docking studies of new Methisazone compounds (modified with calcium, Ca; iron, Fe; magnesium, Mg; manganese, Mn; or zinc, Zn) designed to bind more strongly to key proteins involved in replication of SARS-CoV-2. In this in silico molecular docking study, we investigated the inhibiting role of Methisazone and the modified drugs against SARS-CoV-2 proteins: ribonucleic acid (RNA)-dependent RNA polymerase (RdRp), spike protein, papain-like protease (PlPr), and main protease (MPro). Read More

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Fungal-Metal Interactions: A Review of Toxicity and Homeostasis.

J Fungi (Basel) 2021 Mar 18;7(3). Epub 2021 Mar 18.

Department of Natural Resources and Environmental Design, North Carolina Agricultural and Technical State University, 1601 East Market Street, Greensboro, NC 27411, USA.

Metal nanoparticles used as antifungals have increased the occurrence of fungal-metal interactions. However, there is a lack of knowledge about how these interactions cause genomic and physiological changes, which can produce fungal superbugs. Despite interest in these interactions, there is limited understanding of resistance mechanisms in most fungi studied until now. Read More

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Tea as a Source of Biologically Active Compounds in the Human Diet.

Molecules 2021 Mar 9;26(5). Epub 2021 Mar 9.

Department of Commodity Science and Food Analysis, The Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland.

Due to the different levels of bioactive compounds in tea reported in the literature, the aim of this study was to determine whether commercially available leaf teas could be an important source of phenolics and selected minerals (copper, manganese, iron, zinc, magnesium, calcium, sodium, potassium) and if the differences in the content of these components between various types of tea are significant. It was found that both the amount of these compounds in tea and the antioxidant activity of tea infusions were largely determined by the origin of tea leaves as well as the processing method, which can modify the content of the studied components up to several hundred-fold. The group of green teas was the best source of phenolic compounds (110. Read More

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Valle Agricola Chickpeas: Nutritional Profile and Metabolomics Traits of a Typical Landrace Legume from Southern Italy.

Foods 2021 Mar 10;10(3). Epub 2021 Mar 10.

Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), University of Campania Luigi Vanvitelli, Via Vivaldi 43, 81100 Caserta, Italy.

Chickpea ( L.) from Valle Agricola is a legume cultivated in Southern Italy whose intake is strictly linked to rural traditions. In order to get new biochemical insight on this landrace and to promote its consumption and marketing, nutritional values (moisture content, total proteins, lipids, total and free amino acids) and metabolic traits are deeply investigated. Read More

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Antimicrobial Activity of Pyrazinamide Coordination Frameworks Synthesized by Mechanochemistry.

Molecules 2021 Mar 28;26(7). Epub 2021 Mar 28.

Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.

The urge for the development of a more efficient antibiotic crystalline forms led us to the disclosure of new antibiotic coordination frameworks of pyrazinamide, a well-known drug used for the treatment of tuberculosis, with some of the novel compounds unravelling improved antimycobacterial activity. Mechanochemistry was the preferred synthetic technique to yield novel compounds, allowing the reproduction of a 1D zinc framework, the synthesis of a novel hydrogen bonding manganese framework, and three new compounds with silver. The structural characterization of the novel forms is presented along with stability studies. Read More

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Effect of Foliar Micronutrients (B, Mn, Fe, Zn) on Maize Grain Yield, Micronutrient Recovery, Uptake, and Partitioning.

Plants (Basel) 2021 Mar 11;10(3). Epub 2021 Mar 11.

Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68583-0915, USA.

Timing of micronutrient demand and acquisition by maize ( L.) is nutrient specific and associated with key vegetative and reproductive growth stages. The objective of this study was to determine the fate of foliar-applied B, Fe, Mn, Zn, and Fe/Zn together, evaluate the effect of foliar micronutrients applied at multiple rates and growth stages on maize grain yield, and determine their apparent nutrient recovery efficiency (ANR). Read More

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Association Between Essential Metal Elements and the Risk of Autism in Chinese Han Population.

Biol Trace Elem Res 2021 Apr 2. Epub 2021 Apr 2.

Neuroscience Research Institute, Peking University, Beijing, 100191, People's Republic of China.

Essential metal elements (EMEs) have essential roles in neurological development and maintenance of human homeostasis. We performed a case-control study to explore association between the risk of autism spectrum disorder (ASD) and the 11 EMEs [Calcium (Ca), potassium (K), magnesium (Mg), sodium (Na), manganese (Mn), selenium (Se), cobalt (Co), Molybdenum (Mo), copper (Cu), zinc (Zn), and iron (Fe)] in serum. Ninety-two autistic subjects (cases) and age-sex-matched healthy subjects (controls = 91) from Beijing, China were recruited. Read More

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The effects of some essential and toxic metals/metalloids in COVID-19: A review.

Food Chem Toxicol 2021 Mar 29;152:112161. Epub 2021 Mar 29.

Laboratory of Toxicology and Environmental Health, School of Medicine, Universitat Rovira i Virgili, Sant Llorens 21, 43201, Reus, Catalonia, Spain.

Thousands of studies have been conducted in order to understand in depth the characteristics of the novel coronavirus SARS-CoV-2, its infectivity and ways of transmission, and very especially everything related to the clinical and severity of the COVID-19, as well as the potential treatments. In this sense, the role that essential and toxic metals/metalloids have in the development and course of this disease is being studied. Metals/metalloids such as arsenic, cadmium, lead, mercury or vanadium, are elements with known toxic effects in mammals, while trace elements such as cobalt, copper, iron, manganese, selenium and zinc are considered essential. Read More

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Brain Magnetic Resonance Imaging Phenome-Wide Association Study With Metal Transporter Gene .

Front Genet 2021 15;12:647946. Epub 2021 Mar 15.

Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, United States.

The gene encodes a divalent metal transporter, ZIP8. is associated with pleiotropic effects across multiple tissues, including the brain. We determine the different brain magnetic resonance imaging (MRI) phenotypes associated with We used a phenome-wide association study approach followed by joint and conditional association analysis. Read More

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Microplastics as vectors of metals contamination in Mediterranean Sea.

Environ Sci Pollut Res Int 2021 Mar 30. Epub 2021 Mar 30.

Liguria e Valle d'Aosta, Chemistry Department, Istituto Zooprofilattico Sperimentale del Piemonte, via Bologna 148, 10154, Turin, Italy.

Microplastics are contaminants of great concern all over the world. Microplastics constitute pollutants themselves; moreover, other contaminants such as metals are easily absorbed on their plastic surface, becoming bioavailable to marine biota such as zooplankton.We collected marine zooplankton from Mediterranean Sea to investigate trace elements associated with microplastics. Read More

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Monitoring of heavy metal pollution in urban and rural environments across Pakistan using House crows (Corvus splendens) as bioindicator.

Environ Monit Assess 2021 Mar 30;193(4):237. Epub 2021 Mar 30.

School of Science, Monash University Malaysia, Selangor Darul Ehsan, Bandar Sunway, Malaysia.

A widely distributed urban bird, the house crow (Corvus splendens), was used to assess bioavailable heavy metals in urban and rural environments across Pakistan. Bioaccumulation of arsenic (As), zinc (Zn), lead (Pb), cadmium (Cd), nickel (Ni), iron (Fe), manganese (Mn), chromium (Cr), and copper (Cu) was investigated in wing feathers of 96 crows collected from eight locations and categorized into four groups pertaining to their geographical and environmental similarities. Results revealed that the concentrations of Pb, Ni, Mn, Cu, and Cr were positively correlated and varied significantly among the four groups. Read More

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Magnetic Control of the Manganese Photoluminescence in FeO/l-Cys ZnS:Mn Nanocomposites.

ACS Omega 2021 Mar 10;6(11):7598-7604. Epub 2021 Mar 10.

Department of Physics, East Carolina University, Howell Science Complex, Greenville, North Carolina 27858, United States.

We investigated the magnetic control of the Mn photoluminescence (PL) in iron oxide/l-cysteine-capped zinc sulfide (FeO/l-cys ZnS:Mn) nanocomposites via temperature- and field-dependent PL intensity studies. FeO/l-cys ZnS:Mn was synthesized following a wet chemical deposition route and then its physicochemical, morphological, and magnetic properties were characterized. X-ray diffraction analysis indicates the formation of a semiconducting composite material with coexisting phases with high crystalline quality and purity. Read More

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Maternal metal concentration during gestation and pediatric morbidity in children: an exploratory analysis.

Environ Health Prev Med 2021 Mar 25;26(1):40. Epub 2021 Mar 25.

Clinical Research Center, Soroka University Medical Center, Beer-Sheva, Israel.

Background: The majority of studies linking exposure to metals with certain health outcomes focus on known toxic metals. Alternatively, this study assesses the extent to which exposure to a wider range of metals during gestation is associated with childhood morbidity.

Methods: We analyzed the concentrations of 25 metals found in urine samples of 111 pregnant women of Arab-Bedouin origin collected prior to birth. Read More

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Redox profile of breast tumor and associated adipose tissue in premenopausal women - Interplay between obesity and malignancy.

Redox Biol 2021 Mar 16;41:101939. Epub 2021 Mar 16.

Institute for Biological Research "Sinisa Stankovic" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia; Faculty of Biology, University of Belgrade, Belgrade, Serbia. Electronic address:

One of the underlying mechanisms that could link breast cancer and obesity is shifted redox homeostasis in the tumor microenvironment. To reveal the relationship between the malignant phenotype and obesity, we compared redox profiles of breast tumor and tumor-associated adipose tissue from premenopausal women: normal-weight with benign tumors, overweight/obese with benign tumors, normal-weight with malignant tumors, and overweight/obese with malignant tumors. Namely, we examined the protein expression of nuclear factor erythroid 2-related factor 2 (Nrf2), protein expression and activity of main antioxidant defense (AD) enzymes: copper, zinc- and manganese superoxide dismutase, catalase, and glutathione peroxidase, as well as the level of 4-hydroxy-2-nonenal (4-HNE) modified proteins. Read More

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Maghemite nano-fertilization promotes fluoride tolerance in rice by restoring grain yield and modulating the ionome and physiome.

Ecotoxicol Environ Saf 2021 Jun 23;215:112055. Epub 2021 Mar 23.

Post Graduate Department of Biotechnology, St. Xavier's College (Autonomous), 30, Mother Teresa Sarani, Kolkata 700016, West Bengal, India. Electronic address:

The present manuscript elucidated the ameliorative potential of nano-maghemite (FeNPs) against the hazardous effects of fluoride toxicity in the sensitive rice cultivar, IR-64. Fluoride pollution triggered bioaccumulation in root, shoot and spikelets which inhibited reproduction, agronomic development and mineral uptake. Suppressed activity of enzymatic antioxidants and excessive cobalt translocation manifested severe ROS-induced oxidative injuries. Read More

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Metal and essential element concentrations during pregnancy and associations with autism spectrum disorder and attention-deficit/hyperactivity disorder in children.

Environ Int 2021 Mar 22;152:106468. Epub 2021 Mar 22.

Division of Mental and Physical Health, Norwegian Institute of Public Health, PO Box 222 Skøyen, 0213 Oslo, Norway.

Background: Prenatal exposure to toxic metals or variations in maternal levels of essential elements during pregnancy may be a risk factor for neurodevelopmental disorders such as attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) in offspring.

Objectives: We investigated whether maternal levels of toxic metals and essential elements measured in mid-pregnancy, individually and as mixtures, were associated with childhood diagnosis of ADHD or ASD.

Methods: This study is based on the Norwegian Mother, Father and Child Cohort Study and included 705 ADHD cases, 397 ASD cases and 1034 controls. Read More

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Data on elemental concentrations in marine sediments from the South and South West of England.

Data Brief 2021 Apr 23;35:106901. Epub 2021 Feb 23.

Institute of Marine Sciences, School of Biological Sciences, University of Portsmouth, Ferry Road, Portsmouth PO4 9LY, United Kingdom.

The present Data In Brief methodological paper details the acquisition, mining and pre-processing of elemental concentration data in marine sediments (coastal and open sea) of Southern England, presented and discussed in the co-submitted Environment International paper entitled: "Three decades of trace element sediment contamination: the mining of governmental databases and the need to address hidden sources for clean and healthy seas" [1]. Elemental sediment concentration data were obtained from the two main UK environmental sources, i.e. Read More

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Trace Metal Element Analysis in Some Seafood in the Coastal Zone of the Red River (Ba Lat Estuary, Vietnam) by Green Sample Preparation and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

J Anal Methods Chem 2021 4;2021:6649362. Epub 2021 Mar 4.

Institute of Natural Product Chemistry (INPC), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.

Fisheries and aquaculture production in the coastal zone of Vietnam contribute significantly to the national economy. However, seafood quality and safety, especially in terms of metal contents, are of increasing concern, for both domestic and international markets. This paper presents the results of an investigation in some trace metal elements (iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), arsenic (As), cadmium (Cd), and mercury (Hg)) concentrations in some fishes, crustaceans, and molluscs in the coastal zone of the Red River (in the Ba Lat estuary in Thai Binh and Nam Dinh provinces) during four sampling campaigns in 2020. Read More

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