Abstract:
:X-ray fluorescence experiments at the Photon Factory in Japan are described. An energy-dispersive X-ray fluorescence system was combined with various excitation modes, i.e., a continuum and a monochromatic excitation, which consist of a crystal monochromator or a wide band pass monochromator. These excitation modes provide a wide range of band width and photon flux of excitation beams. Minimum detection limits obtained for a thin sample were less than 0.1 ppm and 0.1 pg when there was no line interference. Advantages of using monochromatic excitation are discussed, with emphasis on the possibility of chemical state analysis. Grazing incidence X-ray fluorescence is a technique very appropriate to synchrotron radiation characteristics. Near-surface analysis and trace analysis of solution samples placed on a total reflection support were made. Future plans are discussed, including microbeam analysis, tomography, X-ray excited optical fluorescence, and applications of insertion devices (undulator and wiggler).
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Gohshi Y,Iida A,Matsushita Tdoi
10.1007/BF02796677subject
Has Abstractpub_date
1987-04-01 00:00:00pages
161-6issue
1eissn
0163-4984issn
1559-0720journal_volume
12pub_type
杂志文章abstract::Iron-deficiency anemia (IDA) is the most common nutritional deficiency in childhood throughout the world. Although it has been shown that IRA is associated with elevated plasma copper and depleted zinc levels in children, there are conflicting results on the effect of iron supplementation on the absorption of these el...
journal_title:Biological trace element research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1385/BTER:94:1:79
更新日期:2003-07-01 00:00:00
abstract::Two organoselenium compounds: xylitol selenious ester (xylitol-Se) and sucrose selenious ester (sucrose-Se) were synthesized, and their molecular structures were characterized in this study. In MTT assay, xylitol-Se and sucrose-Se showed cytostatic effects on human hepatocellular carcinoma cells SMMC-7221 in a dose-de...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-013-9715-7
更新日期:2013-08-01 00:00:00
abstract::Nickel is an important kind of metal and a necessary trace element in people's production and livelihood; it is also a well-confirmed human carcinogen. In the past few years, researchers did a large number of studies about the molecular mechanisms of nickel carcinogenesis, and they focused on activation of proto-oncog...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-013-9619-6
更新日期:2013-05-01 00:00:00
abstract::This study aims to reduce embryonic mortality, increase body weight, and improve immune system in chicken. A total of 240 eggs were assigned to three treatments (n = 60) and injected with cooper (Cu), zinc (Zn), and iron (Fe) loaded by montmorillonite (Mnt), and one untreated group (n = 60). Some hormones and enzymes ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02488-y
更新日期:2020-11-13 00:00:00
abstract::The toxicity of boron has been understood for many years. However, limited data currently exist concerning the nutritional essentiality of B in chordates. Results from an ongoing research program evaluating the nutritional essentiality of B in the South African clawed frog, Xenopus laevis, found that X. laevis fed a l...
journal_title:Biological trace element research
pub_type: 杂志文章,评审
doi:10.1385/BTER:90:1-3:117
更新日期:2002-01-01 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::Selenium (Se) mainly performs its function through Se-containing proteins. Selenoprotein W (SelW), one member of the selenoprotein family, plays important roles in the normal function of the heart. To investigate the possible relationship between Se and SelW for the regulation of oxidative damage in chicken embryo myo...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-015-0529-7
更新日期:2016-06-01 00:00:00
abstract::Cerium has been implicated in the pathogenesis of cardiac disorders such as acute myocardial infarction and endomyocardial fibrosis (EMF). A geochemical hypothesis for the causation of EMF linked the cardiac lesions to magnesium deficiency consequent to malnutrition and increased cardiac levels of cerium derived from ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/bter:114:1:85
更新日期:2006-01-01 00:00:00
abstract::Present study was undertaken to study the effect of 28-days exposure of female adult rats to cadmium (Cd) in drinking water @ 3, 10 and 30 parts per million (ppm) on myometrial responsiveness to different spasmogens and unravel the possible mechanism of alterations in myometrial activity. Cadmium and Ca2+ levels in bl...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-017-1040-0
更新日期:2018-02-01 00:00:00
abstract::Arsenite has been known for half a century to have a protective effect against selenium poisoning. Paradoxically, arsenite inhibits the conversion of inorganic selenium salts to methylated excretory products, although methylation has long been regarded as a detoxification mechanism for selenium. Moreover, there is evi...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02919103
更新日期:1989-04-01 00:00:00
abstract::Decreased expression and increased phosphorylation of Forkhead box o1 (Foxo1) in ameloblasts were observed both in vivo and in vitro when treated by fluoride. The present study aims to investigate the possible relationship between Foxo1 and enamel matrix proteinases, matrix metalloproteinase 20 (MMP20), and kallikrein...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1325-y
更新日期:2018-12-01 00:00:00
abstract::Environmental metal exposure, as well as dietary metals, may adversely affect semen quality even as others play an essential role in normal spermatogenesis and fertility. Measures of seminal fluid metals have therefore been of high interest in the last several decades but have shown inconsistent results in correlation...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1527-3
更新日期:2019-07-01 00:00:00
abstract::Zinc (mostly as free/labile Zn2+) is an essential structural constituent of many proteins, including enzymes in cellular signaling pathways via functioning as an important signaling molecule in mammalian cells. In cardiomyocytes at resting condition, intracellular labile Zn2+ concentration ([Zn2+]i) is in the nanomola...
journal_title:Biological trace element research
pub_type: 杂志文章,评审
doi:10.1007/s12011-018-1464-1
更新日期:2019-03-01 00:00:00
abstract::This study was performed to investigate calcium (Ca), inorganic phosphorus (P), potassium (K), magnesium (Mg), and chlorine (Cl) levels in blood serum at d 60, 100, and 150 of gestation and at d 45 after parturition and to find out the significance of differences for macromineral levels during these stages of single o...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:107:3:247
更新日期:2005-12-01 00:00:00
abstract::The effect of zinc deficiency on calmodulin function was investigated by assessing the in vivo activity of two calmodulin regulated enzymes, adenosine 3',5'-monophosphate (c-AMP) and guanosine 3',5'-monophosphate (c-GMP) phosphodiesterase (PDE) in several rat tissues. Enzymatic activities in brain, heart, and testis o...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02797137
更新日期:1988-08-01 00:00:00
abstract::Both selenium and green tea have been reported to exhibit antigenotoxic and cancer chemopreventive properties. We compared the antimutagenic activities of regular green tea and selenium-enriched green tea obtained from Hubei Province, China, toward the heterocyclic amine, 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) i...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:86:2:177
更新日期:2002-05-01 00:00:00
abstract::Imbalance of zinc and copper status has been hypothesized in human hypertension. A case-control study was carried out to elucidate the possible relationship between zinc and copper status and essential hypertension. Thirty-one subjects affected by mild stable hypertension, pharmacologically untreated, were investigate...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02788959
更新日期:1995-08-01 00:00:00
abstract::Zinc (Zn) is essential for development, growth, and reproduction. The Mexican government subsidizes micronutrient-fortified milk for risk groups, with positive effect on the targeted groups' plasma Zn level, inferring a good absorption is achieved although it has not being measured. The aim of this study was to determ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-015-0356-x
更新日期:2015-11-01 00:00:00
abstract::The inhibition of thymidine incorporation by inadequate availability of zinc induced by adding a chelator to the culture medium was significantly less in human cell lines than in rodent cell lines. In contrast, zinc uptake into the human cells was inhibited by the chelator to a greater extent than with rodent cells. T...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02788961
更新日期:1995-08-01 00:00:00
abstract::Lead poisoning is a worldwide health problem, and its treatment is under investigation. The aim of this study was to access the efficacy of Coriandrum sativum (coriander) in reducing lead-induced changes in mice testis. Animal exposed to lead nitrate showed significant decrease in testicular SOD, CAT, GSH, total prote...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-009-8553-0
更新日期:2010-09-01 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::We investigated the effects of zinc supplementation in case of moderate growth retardation in which GH treatment could not be used. Zamic (ZA, an association containing arginine, L-methionine, and zinc; from Aguettant pharmaceuticals) was compared with arginine aspartate (AA) (5 g) in a crossover randomized trial (6 m...
journal_title:Biological trace element research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02789076
更新日期:1995-04-01 00:00:00
abstract::Recently, several attempts have been made to use the phytopharmaceuticals from plant extracts as reducing, capping and stabilizing agents for the biomimetic synthesis of various metal nanoparticles conjugated to the phytopharmaceuticals. These biogenic metal nanoparticles are non-toxic and can be used as contrast agen...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1287-0
更新日期:2018-11-01 00:00:00
abstract::Plasma zinc (Zn), copper (Cu), and magnesium (Mg) concentrations, copper/zinc ratio, and selenium (Se) status were studied in 44 vegetarians (22 males and 22 females) and their age- and sex-matched nonvegetarians in the Bratislava region (Slovakia). Vegetarians had statistically significant lower levels of plasma Zn a...
journal_title:Biological trace element research
pub_type: 临床试验,杂志文章
doi:10.1007/BF02789145
更新日期:1995-10-01 00:00:00
abstract::Animal feed has traditionally been supplemented with trace elements at dietary concentrations well above physiological needs. However, environmental concerns have led to calls for better adjustment of mineral supplementation to actual physiological needs and, in this context, consideration of breed-related differences...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1276-3
更新日期:2018-11-01 00:00:00
abstract::Although adriamycin (ADR) exhibits high anti-tumor efficacy in vitro, its clinical use in cancer chemotherapy is limited due to its high renal toxicity. This study investigated the mechanism of ADR nephropathy and the protective effect of selenium on ADR-induced kidney damage by analyzing of the relationship between s...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-011-9273-9
更新日期:2012-06-01 00:00:00
abstract::Although coenzyme Q10 (CoQ10) is a component of the oxidative phosphorylation process in mitochondria that converts the energy in carbohydrates and fatty acids into ATP to drive cellular machinery and synthesis, its effect in type I diabetes is not clear. We have studied the effect of 4 wk of treatment with CoQ10 (10 ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:109:1:025
更新日期:2006-01-01 00:00:00
abstract::The concentrations of elements in urine obtained from cats with urolithiasis were compared with those of healthy cats. The concentration of several elements, such as sodium (Na), phosphorus (P), sulfur (S), and potassium (K), in urine obtained from cats with urolithiasis was significantly higher than that of healthy c...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-010-8893-9
更新日期:2011-11-01 00:00:00
abstract::The degree of accumulation and distribution of Cd and Pb in the organs of young animals compared to the amount taken in with water or feed have not been thoroughly investigated yet. The experiment aimed to verify whether the source of toxic metals (feed, drinking water) administered to growing rats orally has an influ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-015-0414-4
更新日期:2016-02-01 00:00:00
abstract::The effects of cadmium on the growth rate, catalase activity, and peroxisome proliferation in yeast, Candida albicans, were evaluated. The yeast growth was markedly inhibited by 1 mM cadmium at the initial hours. The toxic effect of cadmium on the cell growth persisted. The catalase activity of the cells treated with ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02789415
更新日期:1995-11-01 00:00:00