Abstract:
:X-ray Fluorescence (XRF) Analysis and Atomic Absorption Spectrophotometry (AAS) have been used in assessing heavy metal pollution from some gold mines in Ghana. The presence and levels of heavy metals in gold ore, gold tailings, inland waters, and river sediments have been determined. Using these techniques, the heavy metals: Cr, Mn, Fe, Cu, Zn, As, Pb, Rb, Sr, Y, Zr, and Nb were identified in some of the solid samples within a concentration range of 0.08 ppm--4.9%. However, the inland waters showed the presence of only Fe and Zn at levels of 0.08-2.4 micrograms/mL.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Bamford SA,Osae E,Aboh I,Biney CA,Antwi LAdoi
10.1007/BF02992682subject
Has Abstractpub_date
1990-07-01 00:00:00pages
279-85eissn
0163-4984issn
1559-0720journal_volume
26-27pub_type
杂志文章abstract::A rapid cyclic instrumental neutron activation analysis (CINAA) method has been used to determine the selenium content of 27 duplicate diet samples from each of the 27 districts surrounding Pinhel, Portugal. The accuracy and precision of the CINAA method have been evaluated by analyzing certified reference materials a...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02992719
更新日期:1990-07-01 00:00:00
abstract::In brain, excess zinc alters the metabolism of amyloid precursor protein, leading to β-amyloid protein deposition, one of the hallmarks of Alzheimer's disease (AD) pathology. Recently, it has been reported that zinc accelerates in vitro tau fibrillization, another hallmark of AD. In the current study, we examined the ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-012-9411-z
更新日期:2012-11-01 00:00:00
abstract::Measurement and monitoring of magnesium (Mg) are important to prevent the development of serious and potentially fatal complications in critically ill patients. Although ion-selective electrodes are available and earlier reports suggest that free ionized magnesium (iMg2+) is the most useful test to estimate Mg status,...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:115:1:13
更新日期:2007-01-01 00:00:00
abstract::The molecular localization of maternal and fetal zinc and copper metalloproteins in diabetic and control rats was studied. Compared to controls, liver and kidneys of diabetic dams showed an increased concentration of zinc and copper that was associated with metallothionein. In contrast, fetuses of diabetic dams had lo...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02917490
更新日期:1988-12-01 00:00:00
abstract::Lack of specific markers constitutes a problem during diagnosis of headache syndromes. Recently, some metals have gained importance as biological parameters for the diagnosis and during treatment. Low-ionized Mg and high-ionized Ca/Mg in patients with daily migrainous headaches were noted. The blood Na level was shown...
journal_title:Biological trace element research
pub_type: 杂志文章,评审
doi:10.1385/BTER:90:1-3:1
更新日期:2002-01-01 00:00:00
abstract::The purpose of this study was to determine the dietary essentiality of lithium (Li) in rats. In three experiments, two types of diets were fed during growth, reproduction, and lactation. In the first experiment, dams were maintained on a corn-based diet containing 2 ng or 500 ng (controls) Li/g through five successive...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783685
更新日期:1992-09-01 00:00:00
abstract::Exposure to mobile phone-induced electromagnetic radiation (EMR) may affect biological systems by increasing free oxygen radicals, apoptosis, and mitochondrial depolarization levels although selenium may modulate the values in cancer. The present study was designed to investigate the effects of 900 MHz radiation on th...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-014-0032-6
更新日期:2014-08-01 00:00:00
abstract::It has been demonstrated that zinc exerts its beneficial influence on skin fibroblasts. Propolis, a complex mixture of plant-derived and bees' products, was reported to stimulate cicatrization processes in skin and prevent infections. The aim of this study was to find out how zinc and propolis influence human skin fib...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-014-0019-3
更新日期:2014-07-01 00:00:00
abstract::Lead (Pb)-induced reproductive toxicity is a well-characterized adverse effect associated with this heavy metal. It has been found that Pb exposure is associated with altered spermatogenesis, increased testicular degeneration, and pathological sperm alterations. On the other hand, it has been reported that Pb-induced ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1358-2
更新日期:2019-01-01 00:00:00
abstract::Numerous observations suggest a possible connection between the levels of Mg, Zn, Fe, and Zn and the incidence of depressive symptoms. Depression is two to three times more common in women than in men. The menopausal period is extremely conducive to depressive disorders. The aim of this study was to assess the severit...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-016-0798-9
更新日期:2017-03-01 00:00:00
abstract::Recently, considerable attention has been paid to the negative effects caused by the presence and constant increase in concentration of heavy metals in the environment, as well as to the determination of their content in human biological samples. In this paper, the concentration of chromium in samples of blood and int...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1328-8
更新日期:2018-12-01 00:00:00
abstract::Previous studies on the endodontic broken stainless steel instruments have mainly focused on retrieval of specimens. However, the systemic consequences of the retained separated instruments need an investigation. The current study aimed to evaluate the correlation between broken stainless steel instruments inside the ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-014-9959-x
更新日期:2014-06-01 00:00:00
abstract::Placental type 3 iodothyronine deiodinase (D3) potentially protects the fetus from the elevated maternal thyroid hormones. Na(+)/I(-) symporter (NIS) is a plasma membrane glycoprotein, which mediates active iodide uptake. Our objectives were to establish the distribution of NIS and D3 gene expressions in the placenta ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-013-9748-y
更新日期:2013-09-01 00:00:00
abstract::The aim of this study was to trace zinc nanocrystals in the anterior pituitary of zinc-deficient Wistar rats by using autometallographic technique. Male Wistar rats (30-40 days of age, pre-pubertal period) of 40-50 g body weight were divided into the following: the ZC (zinc control) group-fed with 100 ppm zinc in diet...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-016-0881-2
更新日期:2017-06-01 00:00:00
abstract::Iron bioavailability seems to be regulated by vitamin A (VA) but the molecular events involved in this mechanism are not well understood. It is also known that retinoids mediate most of their function via interaction with retinoid receptors, which act as ligand-activated transcription factors controlling the expressio...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-012-9397-6
更新日期:2012-10-01 00:00:00
abstract::To investigate the protective effect of garlic powder on cadmium-induced toxicity sea bass liver, juvenile fishes where maintained under three food diets (diet 1: normal without garlic supply, diet 2: 2% garlic powder; diet 3: 6% garlic powder). After 30 days of specific diets, each group was injected with 500 μg kg-1...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-017-1146-4
更新日期:2018-06-01 00:00:00
abstract::Parenteral administration of mercuric chloride (HgCl2) to rats enhanced lipid peroxidation in liver, kidney, lung, testis, and serum (but not in heart, spleen, or muscle), as measured by the thiobarbituric acid reaction for malondialdehyde (MDA) in fresh tissue homogenates and body fluids. After sc injection of HgCl2 ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02789461
更新日期:1996-05-01 00:00:00
abstract::Zinc (Zn) is an essential nutrient that is required in humans and animals for many physiological functions, including immune and antioxidant function, growth, and reproduction. The present study was performed to investigate the effects of three Zn levels, including Zn adequate (35.94 mg/kg, as a control), Zn deficienc...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:107:2:153
更新日期:2005-11-01 00:00:00
abstract::Several epidemiological studies have shown that exposure to electromagnetic radiation (EMR) can be harmful to human health. The purpose of this study was to examine oxidative parameters and apoptosis induced by EMR in human kidney embryonic cells (HEK293) and to investigate whether zinc (Zn) has protective effect on E...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-019-01811-6
更新日期:2020-04-01 00:00:00
abstract::In the present study, the conditions of analysis by inductively coupled plasma-atomic emission spectrometry (ICP-AES) were investigated. Twenty-six elements (Mg: 25 ppm; Sc: 10 ppm; Ti: 50 ppm; others: 100 ppm) were used as the elements interfering with selected 24 wavelengths. Consequently, the background values in 1...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:87:1-3:211
更新日期:2002-07-01 00:00:00
abstract::In vivo and in vitro studies were conducted to investigate the chemical forms by ion-exchange chromatography of selenium (Se) present in rat and ovine spermatozoa. After injection with 75Se-selenite, the form of 75Se in rat sperm was selenocysteine, but selenocysteine and selenomethionine (SeMet) were present in ovine...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/bter:76:2:161
更新日期:2000-08-01 00:00:00
abstract::Rare earth elements (REEs) have been widely used to increase accumulation of biomass and secondary metabolites in medicinal plants in China. However, very few studies have investigated how REEs mediate secondary metabolism synthesis in medicinal plants. Lanthanum (La), an important REE, is known to improve the accumul...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-012-9379-8
更新日期:2012-09-01 00:00:00
abstract::Being a proven photocatalyst, nano-anatase is capable of undergoing electron transfer reactions under light. In previous studies, we had proven that nano-anatase improved photosynthesis and greatly promoted spinach growth. However, the molecular mechanisms of carbon reaction promoted by nano-anatase are still not clea...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-008-8203-y
更新日期:2008-01-01 00:00:00
abstract::Selenium and methylmercuric chloride (MMC) interactions regarding cellular uptake and selenium protection on MMC toxicity have been studied. Human K-562 cells were pretreated or simultaneously treated with either selenite (5 or 50 microM) or selenomethionine (10 or 50 microM) together with (3.5 or 5 microM) MMC. Cells...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:80:3:251
更新日期:2001-06-01 00:00:00
abstract::Cadmium (Cd) exposure has been recognized to result in a wide variety of cellular responses, including oxidative stress and body weight loss. The aim of the present study was to examine the effect of lycopene supplementation on the antioxidant defense system, lipid peroxidation (LPO) level, nitric oxide (NO), tumor ne...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-007-0027-7
更新日期:2007-08-01 00:00:00
abstract::Trace minerals and vitamins are known modulators of bone metabolism, and dietary optimization of these components may improve skeletal development and reduce the occurrence of skeleton deformities in farmed fish. As for larval stages, mineral and water-soluble vitamin nutrition requirements are lacking in research eff...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-019-01939-5
更新日期:2020-08-01 00:00:00
abstract::This study was aimed to assess the protective effect of sodium selenite on the ileum mucosal immunologic injury induced by AFB1. One hundred eighty-one-day-old healthy male Avian broilers were divided into four groups of three replicates and 15 birds per replicate and fed with basal diet (control group), 0.3 mg/kg AFB...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-014-0035-3
更新日期:2014-07-01 00:00:00
abstract::Metallothionein (MT) is a low-mol-wt protein. The essential trace elements copper and zinc and the potentially toxic elements, such as cadmium, can induce the synthesis of and bind to MT. The major functions of MT are related to metal metabolism. This paper reported and evaluated a new method for determination of hepa...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783177
更新日期:1993-02-01 00:00:00
abstract::Glutathione peroxidase (GPx) is the prototypical eukaryotic selenoprotein, with the rare amino acid selenocysteine (Sec) at the enzyme active site, encoded by the UGA codon in RNA. A DNA virus, Molluscum contagiosum, has now been shown to encode a functional selenium-dependent GPx enzyme. Using modifications of conven...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783852
更新日期:1999-11-01 00:00:00
abstract::The relationship between Ni-induced hepatic lipid peroxidation (LPO) and the concentrations of Ni and trace elements was investigated in male ICR mice. The protective effects of antioxidants were also examined. Hepatic LPO and the concentrations of Ni, Fe, Cu, and Zn in the liver were enhanced after an ip injection of...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02784030
更新日期:1998-02-01 00:00:00