Abstract:
:In this study, a method of positive matrix factorization (PMF) combined support vector machines (SVMs) was adopted to identify possible sources and apportion contributions for trace element pollution in surface sediments from the Jinjiang River, Southeastern China. Utilizing diagnostics tools, four significant factors were extracted from sediment samplers, which were collected in December 2010 at 15 different sites. By treating source identification as a pattern recognition problem, the factor loadings derived from PMF were classified by SVM classifiers which have been trained and validated with fingerprints of eight potential source categories. Using SVM, industrial wastewater from lead ore mining and metal handcraft manufacture, atmospheric deposition, and natural background were identified as main sources of trace element pollution in surface sediments from the Jinjiang River, which were affirmed by visually comparing compound patterns and the differences between the predicted and actual fractional compositions. Apportionment results showed that source of lead ore mining made the largest contribution (33.62 %), followed by atmospheric deposition (30.99 %), metal handcraft manufacture (30.09 %), and natural background (5.29 %).
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Chen H,Teng Y,Wang J,Song L,Zuo Rdoi
10.1007/s12011-012-9576-5subject
Has Abstractpub_date
2013-03-01 00:00:00pages
462-70issue
3eissn
0163-4984issn
1559-0720journal_volume
151pub_type
杂志文章abstract::Instrumental epithermal neutron activation analysis was used in determining the halide concentration of camel serum. The halides determined were sodium, chloride, bromide, and iodide. Serum was examined when the camels had free access to drinking water, following 10 d of water restriction and 2 h following rapid rehyd...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02796697
更新日期:1987-04-01 00:00:00
abstract::Among the trace elements, zinc is one of the most used elements in biological systems. Zinc is found in the structure of more than 2700 enzymes, including hydrolases, transferases, oxyreductases, ligases, isomerases, and lyases. Not surprisingly, it is present in almost all body cells. Preserving the stability and int...
journal_title:Biological trace element research
pub_type: 杂志文章,评审
doi:10.1007/s12011-017-1119-7
更新日期:2018-05-01 00:00:00
abstract::The element Zn is the metal component or activator of many important enzymes. The tissue concentrations and activities of Zn metalloenzymes direct the rate of protein and nucleic acid syntheses, thereby influencing tissue growth and reperative processes. Most of the serum Zn is normally bound to circulating proteins. ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02786257
更新日期:1996-08-01 00:00:00
abstract::Using the dimethylbenz(a)anthracene-induced mammary tumor model in rats, our studies indicated that there was a dose-response relationship between dietary selenium supplementation and the inhibition of mammary carcinogenesis. The degree of inhibition was proportional to the level of dietary selenium up to 5 ppm, at wh...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02987217
更新日期:1983-08-01 00:00:00
abstract::The present study investigated the role of kisspeptin-10 on reproductively significant trace elements in relation to testosterone release in male rabbits, Oryctolagus cuniculus. Groups of rabbits were exposed to single 1 μg kisspeptin dose (i.v., saphenous vein), while simultaneous groups were pretreated with a kisspe...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-013-9720-x
更新日期:2013-08-01 00:00:00
abstract::Many studies have shown that zinc deficiency could decrease the response to insulin. In genetically diabetic animals, a low zinc status has been observed contrary to induced diabetic animals. The zinc status of human patients depends on the type of diabetes and the age. Zinc supplementation seems to have beneficial ef...
journal_title:Biological trace element research
pub_type: 杂志文章,评审
doi:10.1007/BF02784615
更新日期:1992-01-01 00:00:00
abstract::Silver nanoparticles (AgNPs) have recently emerged as a powerful agents for disinfection in the poultry industry. AgNPs are capable of epithelial barriers passing from the route of exposure to the vital organs and cells. This study evaluated the effects of AgNPs on organs weights, blood biochemical, hematological, and...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1267-4
更新日期:2018-10-01 00:00:00
abstract::This study was to investigate the alterations of serum copper homeostasis after hypertensive intracerebral hemorrhage (ICH), which is not yet clear. We recruited 85 hypertensive ICH patients and determined their serum levels of total copper (TCu), small molecule copper (SMC), and ceruloplasmin (Cp). Sera from 32 healt...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-017-1227-4
更新日期:2018-09-01 00:00:00
abstract::Water-borne arsenicosis is caused by the consumption of excess levels of inorganic arsenic from drinking water and is a worldwide public health issue. Arsenic exposure has recently attracted extensive attention due to its damage to the cardiovascular system. Vascular endothelial dysfunction (VED) is recognized as an i...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1559-8
更新日期:2019-08-01 00:00:00
abstract::The aim of this study was to analyze the effect of high dietary Fe on liver antioxidant status in mice fed a corn-oil-enriched diet. Male Balb/c mice were fed for 3 wk with a standard diet enriched with 5% by weight of corn oil with adequate Fe (FCO diet) or supplemented with 1% carbonyl Fe (FCOFe diet). The control g...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:113:2:177
更新日期:2006-11-01 00:00:00
abstract::The present study was designed to investigate the effects of montmorillonite (MMT) on dietary Cd-induced oxidative damage in liver and kidney of carp (Carassius auratus). One hundred eighty carp were randomly divided into four groups and fed with a basal diet, a basal diet supplemented with 0.5% MMT, Cd-comtaminated b...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-010-8735-9
更新日期:2011-06-01 00:00:00
abstract::Elemental analysis of archaeological bones, particularly for elements such as fluorine, strontium, and zinc, has been carried out for many years, with the aim of determining their age or relating their composition to diet. Bone samples are commonly dry ashed before analysis to remove organic material and render them m...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02990417
更新日期:1990-06-01 00:00:00
abstract::The effects of nano-TiO2 (rutile) on the photochemical reaction of chloroplasts of spinach were studied. The results showed that when spinach was treated with 0.25% nano-TiO2, the Hill reaction, such as the reduction rate of FeCy, and the rate of evolution oxygen of chloroplasts was accelerated and noncyclic photophos...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:105:1-3:269
更新日期:2005-07-01 00:00:00
abstract::Trace element involvement in wounds left to heal by secondary intention needs clarification. We have previously reported faster healing of wounds following acute surgery compared with elective excision of pilonidal sinus disease. The effect of topical zinc on the closure of the excisional wounds was mediocre compared ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-013-9658-z
更新日期:2013-06-01 00:00:00
abstract::Exposure of people and animals to arsenic (As) is a global public health concern because As is widely distributed and associated with numerous adverse effects. As is a poisonous metalloid and arsenic trioxide (As2O3) is a form of As. Thus far, there have been very few reports on the inflammatory factor alterations of ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-015-0305-8
更新日期:2015-10-01 00:00:00
abstract::It was determined if the sensitivity in macular mutant mouse to copper-induced toxicity was affected by sex or age. The sensitivity in 6-8-d-old or 3-4-wk-old macular mutant mouse to copper-induced toxicity was not affected by sex. However, 8-9-wk-old mutant females were more sensitive to copper-induced toxicity than ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783183
更新日期:1993-11-01 00:00:00
abstract::A simple, eco-friendly, green routine co-precipitation method was experimented to synthesize iron nanoparticles (Fe-NPs) using the cell-free supernatant of actinobacteria. The biosynthesized nanoparticles were characterized by UV-Vis spectroscopy, X-ray diffractometer (XRD), energy-dispersive X-ray (EDX), scanning ele...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-019-01777-5
更新日期:2020-03-01 00:00:00
abstract::Age-related changes in the concentrations of constituent elements in the brains of rats and mice 1 wk to 24 mo old were determined with inductively coupled plasma-mass spectrometry (ICP-MS) and inductively coupled plasma-atomic emission spectrometry (ICP-AES). Seventeen elements could be determined with reasonable acc...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:80:2:145
更新日期:2001-05-01 00:00:00
abstract::We explored the synergistic effect of serine combined with several selenocompounds or used alone on the expression of selenoprotein P (SelP) and glutathione peroxidase (GPx) in this study. We first compared the SelP and GPx expression difference between HepG2 and Hela cells treated with serine and finally chose HepG2 ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-016-0665-8
更新日期:2016-10-01 00:00:00
abstract::The aim of this study was to investigate the protective effects of erdosteine and vitamins C and E (VCE) on the lungs after performing hind limb ischemia-reperfusion (I/R) by assessing oxidative stress, plasma copper (Cu), and zinc (Zn) analysis. The animals were divided randomly into four groups as nine rats each as ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-007-0010-3
更新日期:2007-07-01 00:00:00
abstract::The objective was to determine if a mammary cell line shows glucocorticoid stimulation of Zn uptake, and to determine whether polyamines mediate this stimulation. 65Zn uptake by COMMA-1D mouse mammary epithelial cells over a 24-h period increased significantly in cells administered 10(-7) or 10(-6) M hydrocortisone. I...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783193
更新日期:1993-11-01 00:00:00
abstract::The aim of the present study was to investigate the effect of selenium (Se) deficiency on the expression of the toll-like receptor (TLR) signal transduction pathway in the spleen of chickens and explore the relationship between the TLR4/TRIF/NF-κB signaling pathway and inflammatory spleen injury. A total of 200 one-da...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02173-0
更新日期:2021-02-01 00:00:00
abstract::To examine longitudinal and gestational effects of mineral content in human milk, we analyzed human milk from lactating mothers of premature (PRT, n = 24, < 2000 g birth weight, < 37 wk gestation) and full-term (FT, n = 19, > 2500 g, 39-41 wk gestation), living in Newfoundland, Canada. Samples were collected once a we...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02784423
更新日期:1999-03-01 00:00:00
abstract::The results obtained in this study demonstrated that experimentally induced alimentary muscular dystrophy (MD) in Cobb 500 broiler chickens resulted in increased plasma concentrations of malondialdehyde (MDA), deviations in activities of erythrocyte antioxidant enzymes Cu,Zn-SOD (decrease), and CAT (increase) as well ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-010-8782-2
更新日期:2011-09-01 00:00:00
abstract::High blood glucose concentration in diabetes induces free radical production and, thus, causes oxidative stress. Damage of cellular structures by free radicals play an important role in development of diabetic complications. In this study, we evaluated effects of sodium tungstate on enzymatic and nonenzymatic markers ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-009-8537-0
更新日期:2010-08-01 00:00:00
abstract::Both manganese and copper may affect bone synthesis. Bone content of both metals can be altered in alcoholics, although controversy exists regarding this matter. To analyse the relative and combined effects of ethanol and a low protein diet on bone copper and manganese, and their relationships with bone structure and ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-011-9296-2
更新日期:2012-06-01 00:00:00
abstract::Chronic alcoholics frequently show associated malnutrition. Both ethanol and malnutrition exert profound changes on zinc and copper metabolism. In this study, we found higher hair zinc and copper values in 43 male alcoholics than in 39 controls. Hair copper was significantly related to the amount of ethanol consumed, ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/bter:85:3:269
更新日期:2002-03-01 00:00:00
abstract::Retraction to: Biol Trace Elem Res 144(1–3):1120–1132, DOI 10.1007/s12011-011-9149-z. Article has been retracted due to duplicate publication. ...
journal_title:Biological trace element research
pub_type: 撤回出版物
doi:10.1007/s12011-012-9550-2
更新日期:2013-01-01 00:00:00
abstract::Lead (Pb) is one of the most hazardous pollutants and toxic heavy metal in marine environment. The molecular mechanisms of Pb toxicity in aquatic organism are not well understood. In this study, hepatopancreas transcriptome of Litopenaeus vannamei (L. vannamei) was characterized by a comparison between control and Pb ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02235-3
更新日期:2021-03-01 00:00:00
abstract::Modifications in the enzyme activity of lysozyme, a protein implied in the defence barrier of the organism, can be a good biomarker of alterations in the immune system as a result of exposure to toxic metal, such as lead. The aim of this work was to evaluate the effect of a 200 ppm dose of lead on lysozyme activity in...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-012-9446-1
更新日期:2012-12-01 00:00:00