277 results match your criteria boron chromium


The Role of Mineral and Trace Element Supplementation in Exercise and Athletic Performance: A Systematic Review.

Nutrients 2019 Mar 24;11(3). Epub 2019 Mar 24.

School of Food Science and Environmental Health, Dublin Institute of Technology, Dublin 8, Ireland.

Minerals and trace elements (MTEs) are micronutrients involved in hundreds of biological processes. Deficiency in MTEs can negatively affect athletic performance. Approximately 50% of athletes have reported consuming some form of micronutrient supplement; however, there is limited data confirming their efficacy for improving performance. Read More

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Evaluation of nutritional status in children with amblyopia.

Arq Bras Oftalmol 2019 Mar-Apr;82(2):141-148. Epub 2019 Jan 10.

Department of Ophthalmology, Çerkezköy State Hospital, Tekirdağ, Turkey.

Purpose: We aimed to compare the body mass index and vitamin and mineral status of children with and without amblyopia.

Methods: Amblyopic children aged between 5 and 18 years (n=46) and age-matched control children (n=32) were evaluated in terms of anthropometric parameters, including height, weight, body mass index and demographic features. Serum vitamin B12 and folate were measured using an Advia Centaur XP (Siemens, Ireland) biochemistry analyzer. Read More

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December 2019

Inner structure and inclusions in radiocesium-bearing microparticles emitted in the Fukushima Daiichi Nuclear Power Plant accident.

Microscopy (Oxf) 2019 Jun;68(3):234-242

Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.

Radiocesium-bearing microparticles (CsMPs), consisting substantially of silicate glass, were released to the environment during the Fukushima Daiichi Nuclear Power Plant accident in March 2011. Since the CsMPs were formed inside the damaged reactors during the accident, we investigate the inner structures of several CsMPs by transmission electron microscopy to understand the events within the reactors. Elemental mapping of the CsMPs shows a distinct radial distribution of Cs with a higher concentration near the surface of the CsMPs, implying that Cs was in a gaseous state in the reactor atmosphere and diffused into the glass matrix after formation of the glass particles. Read More

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Analyzing Boron in 9-12% Chromium Steels Using Atom Probe Tomography.

Microsc Microanal 2019 04 30;25(2):462-469. Epub 2019 Jan 30.

Department of Industrial and Materials Science,Chalmers University of Technology,SE-41296 Gothenburg,Sweden.

Small additions of boron can remarkably improve the long-term creep resistance of 9-12% Cr steels. The improvement has been attributed to boron segregation to grain boundaries during quenching, and subsequent boron incorporation into certain families of precipitates during tempering. However, the detailed mechanisms are not yet fully understood. Read More

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The effect of surgical specimen-derived phosphorus and lead concentrations in non small cell lung cancer patients on disease course.

Tuberk Toraks 2018 Dec;66(4):334-339

Department of Chest Diseases, Faculty of Medicine, Ataturk University, Erzurum, Turkey.

Introduction: Lung cancer is one of the leading causes of cancer-related mortality. There are many exogenic and endogenic factors associated with the development of lung cancer. One of these factors is trace elements. Read More

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December 2018

Comparative study on the nutrients, heavy metals and pesticide composition of some locally produced and marketed rice varieties in Nigeria.

Food Chem 2019 Apr 22;278:617-624. Epub 2018 Nov 22.

Federal University Ndufu-Alike Ikwo, Nigeria.

The nutrients, heavy metals and pesticide concentrations of an imported (Gold) and three locally produced and marketed rice varieties (Samples B-mass, C-R8 and D-CP) in Nigeria were investigated using standard techniques. All the rice varieties contained considerable amounts of moisture, ash, protein, lipid and carbohydrate but were low in crude fibre. The local rice varieties contained higher (P < 0. Read More

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Determination of 27 Elements in Animal Feed by Inductively Coupled Plasma-Mass Spectrometry.

J AOAC Int 2019 Mar 16;102(2):434-444. Epub 2018 Nov 16.

New York State Department of Agriculture and Markets Food Laboratory, 1220 Washington Ave, Albany, NY.

A method was developed to determine 27 elements (aluminum, arsenic, boron, cadmium, calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, mercury, molybdenum, nickel, phosphorus, potassium, selenium, sodium, sulfur, vanadium, zinc, antimony, uranium, beryllium, thallium, and thorium) in animal feeds and pet foods using closed vessel microwave digestion and inductively coupled plasma-mass spectrometry. These elements can adversely affect animal health when amounts become excessive or deficient in food. For potentially toxic elements, the target LOQ was determined to be 1/10 the lowest maximum tolerable level (MTL) for the most sensitive animal species. Read More

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Boron, Chromium, Manganese, and Nickel in Agricultural Animal Production.

Authors:
Jerry W Spears

Biol Trace Elem Res 2019 Mar 26;188(1):35-44. Epub 2018 Sep 26.

Department of Animal Science, North Carolina State University, Raleigh, NC, 27695-7621, USA.

This paper provides an overview of research that has been conducted with manganese (Mn), chromium (Cr), nickel (Ni), and boron (B) in poultry, swine, and ruminants. Manganese is an essential trace mineral that functions as an enzyme component and enzyme activator. A deficiency of Mn results in a variety of bone abnormalities, and Mn deficiency signs have been observed under practical conditions in poultry and cattle. Read More

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First-order properties from internally contracted multireference coupled-cluster theory with particular focus on hyperfine coupling tensors.

J Chem Phys 2018 Aug;149(6):064101

Institut für Theoretische Chemie, Universität Stuttgart, D-70569 Stuttgart, Germany.

Internally contracted multireference coupled-cluster (icMRCC) theory is extended to the computation of first-order properties (expectation values). We use the previously defined Lagrange formulation of the energy functional to derive the required equations for the Lagrange multipliers and arrive at an expression for first-order properties according to the generalized Hellmann-Feynman theorem, analogous to single-reference coupled-cluster theory. The present formulation does not include orbital relaxation, but in line with previous experience in coupled-cluster theory, the single-excitation cluster operator can recover a significant portion of orbital relaxation. Read More

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The concentrations of bioelements in the hair samples of Jordanian children who stutter.

Int J Pediatr Otorhinolaryngol 2018 Sep 3;112:158-162. Epub 2018 Jul 3.

Department of Chemistry, Jordan University of Science and Technology, Irbid, Jordan. Electronic address:

Objectives: This study investigates the levels of 15 bioelements (calcium, copper, chromium, sodium, iron, magnesium, manganese, zinc, cobalt, selenium, molybdenum, vanadium, potassium, boron, and lithium) in the hair species of Jordanian stutterer.

Methods: The subjects of the study included 25 cases of stuttering, and 25 normal children (age and sex matched). The severity of stuttering (low, moderate, and severe) were assessed using Stuttering Severity Instrument, Fourth edition (SSI-4). Read More

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September 2018

Retention of arsenic, chromium and boron on an outcropping clay-rich rock formation (the Tégulines Clay, eastern France).

Sci Total Environ 2018 Nov 14;642:216-229. Epub 2018 Jun 14.

BRGM, French Geological Survey, 45060 Orléans, France.

The retention behavior of three toxic chemicals, As, Cr and B, was investigated for an outcropping rock formation, the Albian Tégulines Clay (France, Aube). At a shallow depth, Tégulines Clay is affected by weathering processes leading to contrasted geochemical conditions with depth. One of the main features of the weathering is the occurrence of a redox transition zone near the surface. Read More

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November 2018

Trends of metals enrichment in deposited particulate matter at semi-arid area of Iran.

Environ Sci Pollut Res Int 2018 Jul 30;25(19):18737-18751. Epub 2018 Apr 30.

Geological Survey of Iran, Medical Geology Department, Tehran, Iran.

The presence and enrichment of heavy metals in dust depositions have been recognized as an emerging environmental health issues in the urban and industrial areas. In this study, the deposition of some metals was found in Qom, a city located in a semi-desert area in Iran that is surrounded by industrial areas. Dust deposition samples were collected using five sampling stations during a year. Read More

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Interplay between elemental imbalance-related PI3K/Akt/mTOR-regulated apoptosis and autophagy in arsenic (III)-induced jejunum toxicity of chicken.

Environ Sci Pollut Res Int 2018 Jul 28;25(19):18662-18672. Epub 2018 Apr 28.

Department of Physiology, College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China.

Arsenic trioxide (AsO), the most toxic form of arsenic found in foodstuffs, is considered a carcinogen for human and animal. But many of the events that occur during its passage through the gastrointestinal tract are uncharted in birds. This study assesses the toxic effect on the jejunum of chicken which subchronically exposed to diets that contain AsO (0, 0. Read More

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Impact of chromium and boron compounds on the reproductive function in rats.

Toxicol Ind Health 2018 Jun 28;34(6):365-374. Epub 2018 Mar 28.

6 "Republican Center for Health Development" of the MHSD, Business Center "Altyn Orda," Astana, The Republic of Kazakhstan.

The purpose of this research is to study the process of mutagenesis and the reproductive function in male rats under separate and combined exposure to chromium and boron compounds. The experiment was conducted on two groups of animals. The first group was used to assess the ability of potassium dichromate and boric acid to induce mutation in germ and somatic cells under isolated and combined administration with the use of the dominant lethal mutations test and the micronuclei test in the polychromatophilic erythrocytes of the bone marrow. Read More

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Diagnostic potential of major and trace elements in the serum of bladder cancer patients.

J Trace Elem Med Biol 2018 Mar 28;46:150-155. Epub 2017 Dec 28.

Institute for Surface Science and Corrosion, Department of Materials Science, Friedrich Alexander-University Erlangen-Nürnberg, Martensstraße 7, D-91058 Erlangen, Germany.

Major and trace elements may play a role in the diagnosis of diseases. In this study, we investigated the concentration of 26 major and trace elements in the serum by inductively coupled plasma (ICP) - optical emission spectrometry (OES) and ICP-sector field-mass spectrometry (sf-MS). We analyzed the serum from a discovery cohort of 6 bladder cancer (BCa) patients and 12 healthy controls as well as from a validation cohort of 21 BCa patients, 29 non-tumor bladder patients (with acute and chronic inflammation) and 18 healthy controls. Read More

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Status and interrelationship of toenail elements in Pacific children.

J Trace Elem Med Biol 2018 Mar 10;46:10-16. Epub 2017 Nov 10.

AUT University, School of Public Health and Psychosocial Studies, Auckland, New Zealand.

Objective: Elemental deficiencies or in excess effects growth and development. Pacific population are at a disadvantage due to food insecurity as compared to New Zealand European households. This study aims to evaluate the status and interrelationship of elements (essential, non-essential and toxic) in nine-year-old Pacific children who were part of the Pacific Island Families Study living in New Zealand. Read More

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Comparison of trace element levels after cardiopulmonary bypass between cyanotic and acyanotic patients.

Cardiol Young 2018 May 7;28(5):632-638. Epub 2018 Feb 7.

2Department of Biophysics, Cerrahpasa Medical Faculty,Istanbul University,Istanbul,Turkey.

Trace elements are essential micronutrients for the human body. In this study, we evaluated the alterations in copper, chromium, manganese, selenium, magnesium, zinc, iron, arsenic, boron, and silicon levels in children with cyanotic and acyanotic CHD who underwent cardiac surgery with cardiopulmonary bypass. Participants were divided into the following three groups: patients acyanotic CHDs (n=34), patients with cyanotic CHDs (n=30), and healthy controls (n=30). Read More

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A Limited Survey of Metal Content in Blue Jack Mackerel ( Trachurus picturatus) Obtained from Markets in the Canary Islands.

J Food Prot 2018 02;81(2):202-208

1 Toxicology Department, Universidad de La Laguna, 38071, Santa Cruz de Tenerife, Canary Islands, Spain (ORCID: http://orcid.org/0000-0003-1581-0850 [A.G.]); and.

The levels of 20 metals (aluminum, boron, barium, calcium, cadmium, cobalt, chromium, copper, iron, potassium, lithium, magnesium, manganese, molybdenum, sodium, nickel, lead, strontium, vanadium, and zinc) were analyzed in muscle and liver tissue of Trachurus picturatus marketed in the Canary Islands (Spain) by using inductively coupled plasma optical emission spectrometry. In the liver samples, the mean concentrations in milligrams per kilogram wet weight (wt) of Al (14.7), B (0. Read More

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February 2018

Composition of minerals and trace elements at Mamasani thermal source: A possible preventive treatment for some skin diseases.

J Educ Health Promot 2017 4;6:110. Epub 2017 Dec 4.

Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.

Introduction: Some skin diseases are incurable and modern medicine can only control them. In addition, alternative treatment remedies including balneotherapy can be effective in improving skin conditions. However, there are only a limited number of studies on particular mineral or trace elements of mineral sources that have been identified in Iran. Read More

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December 2017

Combined oral supplementation of chromium picolinate, docosahexaenoic acid, and boron enhances neuroprotection in rats fed a high-fat diet

Turk J Med Sci 2017 11 13;47(5):1616-1625. Epub 2017 Nov 13.

Background/aim: A novel complex of a nutritional supplement (CDB) contains chromium picolinate (CrPic), phosphatidylserine (PS), docosahexaenoic acid (DHA), and boron (B). The present study aimed to investigate the effects of CDB on the metabolic profile and memory acquisition in rats fed a high-fat diet (HFD). Materials and methods: Male Wistar rats were divided into six groups and received either a regular diet or HFD supplemented with or without different levels of CDB (0, 11, or 22 mg/kg BW). Read More

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November 2017

Resistance of black soldier fly (Diptera: Stratiomyidae) larvae to combined heavy metals and potential application in municipal sewage sludge treatment.

Environ Sci Pollut Res Int 2018 Jan 2;25(2):1559-1567. Epub 2017 Nov 2.

State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, People's Republic of China.

Treating municipal sewage sludge (MSS) sustainably and economically in China remains a challenge because of risks associated with the heavy metals it contains. In this study, black solider fly larvae (BSFL) were used for MSS treatment. The resistance of larvae to combined heavy metals and their potential use in conversion of MSS were investigated. Read More

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January 2018

Highly sensitive "turn-on" fluorescent chemical sensor for trace analysis of Cr using electro-synthesized poly(N-(9-fluorenylmethoxycarbonyl)-l-histidine).

Spectrochim Acta A Mol Biomol Spectrosc 2018 Feb 7;191:79-87. Epub 2017 Sep 7.

Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, PR China; Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.

Trivalent chromium (Cr) can cause severely environment pollution, declining quality of edible agro-products in plants and animals, and human diseases. Poly(N-(9-fluorenylmethoxycarbonyl)-l-histidine) (PFLH) synthesized by the direct electro-polymerization of its corresponding commercially available monomer in both boron trifluoride diethyl etherate and dichloromethane mixed system. The "turn-on" type fluorescent sensor based on PFLH displayed high sensitivity and selectivity for Cr detecting. Read More

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February 2018

Selenium deficiency-induced alterations in ion profiles in chicken muscle.

PLoS One 2017 6;12(9):e0184186. Epub 2017 Sep 6.

Department of Veterinary Medicine, Northeast Agricultural University, Harbin, P. R. China.

Ion homeostasis plays important roles in development of metabolic diseases. In the present study, we examined the contents and distributions of 25 ions in chicken muscles following treatment with selenium (Se) deficiency for 25 days. The results revealed that in chicken muscles, the top ranked microelements were silicon (Si), iron (Fe), zinc (Zn), aluminum (Al), copper (Cu) and boron (B), showing low contents that varied from 292. Read More

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October 2017

Association of Elements with Schizophrenia and Intervention of Selenium Supplements.

Biol Trace Elem Res 2018 May 15;183(1):16-21. Epub 2017 Aug 15.

Shandong University, Number 44 in Wenhua Road, Lixia Distrct, Jinan, China.

The purpose of this study is to explore more trace elements (zinc, potassium, copper, iron, boron, manganese, selenium, chromium and cadmium elements) in addition to calcium, magnesium, lead and arsenic in the sera of patients with schizophrenia and the general population in China and to determine the effect of selenium on schizophrenia patients. Participants were collected from the Pingyin County Mental Health Hospital and Pingyin County. A t test was used to analyse the differences between schizophrenia patients and healthy subjects, and element content differences in gender. Read More

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Dual bioremediation of phenol and Cr(VI) by mixed microbial cultures in the presence of molasses.

Water Sci Technol 2017 Jun;75(12):2883-2890

Department of Biology, Faculty of Science, University of Ankara, Ankara, Turkey E-mail:

Simultaneous phenol and Cr(VI) bioremoval by two different mixed cultures, from petroleum-contaminated soil (PS) and boron-contaminated wastewater (BW), was investigated in regard to different culture media, pH levels (6-8), initial phenol (25-100 mg/L) and Cr(VI) (15-50 mg/L) concentrations. The optimum medium was found to be mineral salt medium tested, which contained 1% (v/v) molasses (MSM). Optimum pH values were 6 for PS and 8 for BW. Read More

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Mineral content of smooth scallop (Flexopecten glaber) caught Canakkale, Turkey and evaluation in terms of food safety.

J Trace Elem Med Biol 2017 Jul 29;42:97-102. Epub 2017 Apr 29.

Institute of Marine Sciences and Management, Istanbul University, Vefa, 34134 Istanbul, Turkey.

In this research, one of the most promising scallop species, smooth scallop (Flexopecten glaber) was studied. According to our findings, smooth scallop has beneficial micro and macro minerals, fat and carbohydrate just before the spawning. While the ratios protein, ash and water decreased from autumn to summer, ratio of crude fat increased till reproduction season in late spring and decreased in summer (P<0. Read More

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Trace element status in patients with type 2 diabetes in Norway: The HUNT3 Survey.

J Trace Elem Med Biol 2017 May 2;41:91-98. Epub 2017 Mar 2.

Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway.

Several epidemiological studies have indicated that a number of trace elements may play a role in type 2 diabetes (T2D). We investigated the association between prevalent T2D and the concentrations of 25 trace elements in whole blood, and the relationships between T2D duration and blood levels of the trace elements that we found to be related to T2D prevalence. In this population based case-control study, 267 patients with self-reported T2D and 609 controls (frequency matched), were selected from the third Nord-Trøndelag Health Survey. Read More

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Trace elements in early phase type 2 diabetes mellitus-A population-based study. The HUNT study in Norway.

J Trace Elem Med Biol 2017 Mar 21;40:46-53. Epub 2016 Dec 21.

Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway.

Differences in trace elements levels between individuals with type 2 diabetes and controls have been reported in several studies in various body fluids and tissues, but results have been inconsistent. In order to examine trace element levels in the early phase of type 2 diabetes, we investigated the association between whole blood levels of 26 trace elements and the prevalence of previously undiagnosed, screening-detected type 2 diabetes. The study was conducted as a case-control study nested within the third survey of the population-based Nord-Trøndelag Health Study (HUNT3 Survey). Read More

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Formation of Boron-Main-Group Element Bonds by Reactions with a Tricoordinate Organoboron LPhB: (L = Oxazol-2-ylidene).

Inorg Chem 2017 May 30;56(10):5586-5593. Epub 2017 Jan 30.

Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, and ‡NTU-CBC Crystallography Facility, Nanyang Technological University , Singapore 637371, Singapore.

The reactivity of LPhB: (1; L = oxazol-2-ylidene) as well as its transition-metal (chromium and iron) complexes toward main-group substrates have been systematically examined, which led to the construction of B-E (E = C, Ga, Cl, H, F, N) bonds. The combination of 1 and triethylborane smoothly captured carbon dioxide concomitant with the formation of B-C and B-O bonds. The soft basic boron center in 1 readily reacted with soft acidic gallium trichloride (GaCl) to afford the extremely stable adduct 4 involving a B-Ga dative bond. Read More

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Quantitative Evaluation of Heavy Metals and Trace Elements in the Urinary Bladder: Comparison Between Cancerous, Adjacent Non-cancerous and Normal Cadaveric Tissue.

Biol Trace Elem Res 2016 Dec 5;174(2):280-286. Epub 2016 May 5.

Urology and Nephrology Center (M A-E, M A-R, BA), Mansoura University, Mansoura, Egypt.

The role of heavy metals and trace elements (HMTE) in the development of some cancers has been previously reported. Bladder carcinoma is a frequent malignancy of the urinary tract. The most common risk factors for bladder cancer are exposure to industrial carcinogens, cigarette smoking, gender, and possibly diet. Read More

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December 2016