Abstract:
:The contribution of gamma-ray scattering to the total efficiency for point-source geometries in a gamma spectrometer was measured. Scattering of gamma-rays on the shield and in the sample was considered. For a 25% efficiency detector in a small shield, about a 1% contribution to the total efficiency was measured, whereas for samples of a few hundred grams, these contributions reached 1-2%. Simple models for description of the effects are presented.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Korun M,Martincic Rdoi
10.1007/BF02917374subject
Has Abstractpub_date
1994-10-01 00:00:00pages
697-705eissn
0163-4984issn
1559-0720journal_volume
43-45pub_type
杂志文章abstract::The binding of Cu(II), Zn(II), Ni(II), and Cd(II) to protein components in serum, placenta, kidney, and urine was investigated at physiological pH, using radioisotopes as tracers. All the four metals were bound to albumin and other macromolecules in serum. However, small amounts were also bound to low molecular weight...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02917246
更新日期:1989-07-01 00:00:00
abstract::Concentration of heavy metals (lead (Pb), cadmium (Cd), chromium (Cr), and copper (Cu)) was determined in the liver, gills, kidneys, and muscles of eight edible fish species (Channa punctata, Cirrhinus reba, Labeo rohita, Heteropneustes fossilis, Mystus cavasius, Oreochromis niloticus, Puntius sophore, and Wallago att...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-011-9011-3
更新日期:2011-12-01 00:00:00
abstract::The aim of this study was to assess the effect of sibutramine on mineral status and selected biochemical parameters in obese women. The study was conducted on 24 patients who received 15 mg daily doses of sibutramine for 12 weeks, and on 20 patients who received placebo. At the baseline, after the sixth and twelfth we...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-012-9425-6
更新日期:2012-11-01 00:00:00
abstract::The effect of maternal dietary selenium (Se) and gestation on the concentrations of Se and zinc (Zn) in the porcine fetus were determined. Mature gilts were randomly assigned to treatments of either adequate (0.39 ppm Se) or low (0.05 ppm Se) dietary Se. Gilts were bred and fetuses were collected throughout gestation....
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:97:1:57
更新日期:2004-01-01 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::Various studies indicate the role of manganese (Mn) in the virulence of pathogens. Salmonella is an intracellular pathogen which is able to multiply within the macrophages. The present study was therefore, designed to assess the effect of Mn supplementation on Salmonella-macrophage interactions particularly in referen...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-009-8406-x
更新日期:2010-01-01 00:00:00
abstract::To obtain real-time dynamic changes of non-protein-bound copper in the blood, we have developed an online microdialysis sampling system coupled with a flow-injection graphite furnace-atomic absorption spectrometer (FI-GFAAS). The analytical performances of the online system such as linearity, limit of detection, preci...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:111:1:255
更新日期:2006-07-01 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::The objective of this study was to assess the contamination levels of arsenic (As), lead (Pb), chromium (Cr), and cadmium (Cd) in raw milk and the subsequent potential health risk to local consumers close to leather-processing plants in China. The As and Pb concentrations in milk from contaminated areas were 0.43 ± 0....
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02470-8
更新日期:2020-11-12 00:00:00
abstract::Twenty-seven infants with classical phenylketonuria were evaluated longitudinally for 6 mo while ingesting Phenex-1 Amino Acid Modified Medical Food With Iron as their primary protein source. Intake of selected nutrients and biochemical indices of trace and ultratrace mineral status and plasma retinol and alpha-tocoph...
journal_title:Biological trace element research
pub_type: 临床试验,杂志文章
doi:10.1007/BF02784277
更新日期:1999-01-01 00:00:00
abstract::Chromium picolinate is used in the poultry diet because of its antistress effects in addition to the fact that the requirement for it is increased during stress. This study was conducted to determine if the negative effects of high ambient temperature (34 degrees C) on egg production, egg quality, antioxidant status, ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:101:2:181
更新日期:2004-11-01 00:00:00
abstract::The purpose of this study was to determine glutathione peroxidase (GSHPx) activity in the liver of red deer in relation to selenium concentrations in the liver, as well as to evaluate changes in GSHPx activity according to sex, body weight and season of the year. Total selenium concentration in the liver of red deer a...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-011-9022-0
更新日期:2011-12-01 00:00:00
abstract::Deficiencies in Cu, Se, and Zn impair one or more biochemical functions, and excess are associated with toxicity. Baseline studies on the Ghanaian population are scanty. The study was undertaken to determine whether significant rural/urban differences in the serum levels of Cu, Se, and Zn did exist. Forty males/60 fem...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-009-8571-y
更新日期:2010-11-01 00:00:00
abstract::Long-term diabetes mellitus can induce osteopenia and osteoporosis, an increase in the incidence of low-stress fractures, and/or delayed fracture healing. Strontium ranelate (SrR) is a dual-action anti-osteoporotic agent whose use in individuals with diabetic osteopathy has not been adequately evaluated. In this study...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1322-1
更新日期:2018-12-01 00:00:00
abstract::The decline in fish population because of water contamination is problem. As a result of direct exposure in water, it has been readily accepted that the gills are the main site of water contamination and toxicity (e.g., metal ions). In the present study, we investigated metal ion contamination on the functional capaci...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:100:3:229
更新日期:2004-09-01 00:00:00
abstract::An "anti-oxidant cocktail" consisting of betacarotene, vitamins B6, C, E, zinc, and selenium or corresponding placebos were given for one y as daily dietary supplements to 45 elderly residents of a nursing home. Initially, the serum TBA reactant levels were higher (2.7 +/- 0.7 mumol/L) than those of an ad hoc control ...
journal_title:Biological trace element research
pub_type: 临床试验,杂志文章
doi:10.1007/BF02795458
更新日期:1988-09-01 00:00:00
abstract::The study was undertaken to investigate the influence of alpha-tocopherol on zinc, copper, iron, calcium, magnesium, and potassium concentrations in serum of rats with bleomycin-induced pulmonary fibrosis. Fourteen Wistar albino rats were randomly divided into two groups of seven animals each. The first group was trea...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:114:1:175
更新日期:2006-01-01 00:00:00
abstract::The original version of this article unfortunately contained a mistake. The name of "Ali Ghorbani Ranjbary" is now corrected in the author group of this article. The original article has been corrected. ...
journal_title:Biological trace element research
pub_type: 杂志文章,已发布勘误
doi:10.1007/s12011-019-01787-3
更新日期:2020-04-01 00:00:00
abstract::Interaction between toxic and essential elements is of particular interest, because the deficiency of essential element can dramatically increase the absorption rate of toxic metals inside the body. This study was conducted to evaluate the possible correlation of lead (Pb) with calcium (Ca), iron (Fe), and zinc (Zn) i...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-017-1141-9
更新日期:2018-06-01 00:00:00
abstract::The effect of certain inorganic and coordinated nickel compounds on the resistance to different destructive substances, rheological properties, and functional activity of healthy human red blood cells (RBC), was investigated. It is shown that nickel compounds affect the erythrocyte membrane lipid bilayer, as well as m...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02917273
更新日期:1989-07-01 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::The metabolic effects of dietary boron, magnesium, and molybdenum on mineral metabolism in the cholecalciferol-deficient chick, with emphasis on growth cartilage histology, were studied. One-day-old cockerel chicks were assigned to groups in a fully-crossed, three factor, 2 x 2 x 2 design. The basal diet was based on ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02916650
更新日期:1989-11-01 00:00:00
abstract::Studies were designed to characterize the plasma membrane polypeptide composition of normal rat kidney (NRK) and virus-transformed NRK cells as a function of time following iron deprivation. Using this approach we found that rapid depletion of iron from the cells increases the amounts of two membrane-associated glycop...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02821711
更新日期:1979-06-01 00:00:00
abstract::Zinc absorption from the alimentary tract, as revealed by serum zinc concentration, was studied in a group of 10 patients (age 37.7+/-5.1 yr) with moderate and severe untreated primary arterial hypertension before and after a 30-d treatment with perindopril 4 mg/d. Blood pressure was 177.33+/-16.24/111.33+/-15.26 mm H...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:83:1:31
更新日期:2001-10-01 00:00:00
abstract::Fluoride can induce neurotoxicity, but the mechanism is not clear. In this study, we explored the role of autophagy in F--induced neurotoxicity of Wistar rats. Eighty Wistar rats were randomly divided into four groups: the control group (distilled water containing less than 0.1 mg/L F-) and three NaF-treated groups (F...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-019-01735-1
更新日期:2020-02-01 00:00:00
abstract::Nutritional profile of minerals and antioxidants in Indian spice extracts was evaluated in order to examine their efficacy in treating various diseases, disorders, and allergies in human health. Extracts of four medicinal plants such as Curcuma longa, Zingiber officinale, Piper nigrum, and Piper longum, regularly cons...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02228-2
更新日期:2021-03-01 00:00:00
abstract::Exposure to ionizing total-body radiation suppresses hematopoiesis, resulting in decreased production of blood cells. Many researchers have demonstrated the critical role of zinc (Zn) in diverse physiological processes, such as growth and development, maintenance and priming of the immune system, and tissue repair. Th...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/bter:100:1:063
更新日期:2004-07-01 00:00:00
abstract::In this work, the interaction between nano-TiO(2) and trypsin was investigated, and the mechanisms of the interaction were explored by the methods of UV-vis detection, circular dichroism (CD), and fluorescence. The results clearly demonstrated that nano-TiO(2) had an inhibitory effect on the enzyme activity. The activ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-010-8823-x
更新日期:2011-09-01 00:00:00
abstract::Zinc is an essential micronutrient for the organism and is critical for the functional and structural integrity of cells. Determination of the amount of trace element concentrations in tissues such as hair samples have been used for the evaluation of the metabolic status especially in children. Unlike serum zinc, conc...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02115-w
更新日期:2020-08-01 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