abstract：:The thermogenic curves of the metabolism of mitochondria isolated from the liver of chicken Star-Cross 288 and the effect of La3+ on it were studied by using an LKB-2277 BioActivity Monitor, ampoule method, at 37 degrees C. After isolation from the chicken liver tissue, mitochondria still have metabolic activity and c...

journal_title：Biological trace element research

authors： Yi L,Peng L,Fengjiao D,Zhong C,Cunxin W,Songsheng Q

更新日期：2001-01-01 00:00:00

abstract：:Interaction of elements in the course of element uptake by carrot (Daucas carota cv. U.S. harumakigosun) exerted by the addition of elements, such as Rb, Zn, and Al, was investigated. For the purpose of precise evaluation of uptake behavior, the simultaneous determination of absorption of Na, Be, Sr, Mn, Co, Zn, Ce, P...

journal_title：Biological trace element research

authors： Ozaki T,Ambe S,Minai Y,Enomoto S,Yatagai F,Abe T,Yoshida S,Makide Y

更新日期：2001-01-01 00:00:00

abstract：:An external-sample liquid scintillation (LS) counting for the gamma emitter 75Se has been developed. An expressly designed well-type LS vial and a 2,5-diphenyoxazole-1,4-bis(5-phenyl-2-oxazoyl)-benzene-xylene solution containing 35% tertrabutylzinn allow 75Se to be counted in a standard LS counter with counting effici...

journal_title：Biological trace element research

authors： Qu XH,Huang KX,Wu ZX,Zhong S,Deng LQ,Xu HB

更新日期：2000-12-01 00:00:00

abstract：:Head hair concentrations of zinc, copper, manganese, alid iron from a total of 418 subjects (154 male and 264 female) aged between 6 mo and 20 yr were measured mainly with flameless atomic absorption spectrophotometry. Only zinc analysis of a part of the female samples (n = 140) were analyzed with inductively coupled ...

journal_title：Biological trace element research

authors： Sakai T,Wariishi M,Nishiyama K

更新日期：2000-10-01 00:00:00

abstract：:The aim of this study was to establish the possible effects of the sampling protocol (between-breast, within-feed, and diurnal differences) and the mother's personal factors (age, parity, iron supplementation, smoking habits, and lactation period) on the copper, iron, and zinc contents in human milk. One hundred thirt...

journal_title：Biological trace element research

authors： Silvestre MD,Lagarda MJ,Farré R,Martínez-Costa C,Brines J,Molina A,Clemente G

更新日期：2000-09-01 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

authors： Alabi NS,Beilstein MA,Whanger PD

更新日期：2000-08-01 00:00:00

abstract：:We investigated the possible correlation between the leptin concentration and the Zn/Cu ratio in the plasma of women with thyroid disorder. Forty women with hypothyroidism (n = 20) or hypothyroidism (n = 20) and 20 euthyroid controls were recruited. The results showed that the women with thyroid disorder (hypothyroidi...

journal_title：Biological trace element research

authors： Chen MD,Song YM,Tsou CT,Lin WH,Sheu WH

更新日期：2000-07-01 00:00:00

abstract：:Attempts were made to promote germination of natural aged rice seeds by treating them with lanthanum nitrate. In tests to measure the germination rate, germination index, and vigor index of natural aged rice seeds were found to be significantly increased by lanthanum. It is treating aged rice seed with lanthanum nitra...

journal_title：Biological trace element research

authors： Fashui H,Zhenggui W,Guiwen Z

更新日期：2000-07-01 00:00:00

abstract：:Biological half-lives of bromine in 15 different organs and tissues of the rat, in addition to the whole-body half-life, were determined by measuring the radioactive concentration of 82Br-bromide in samples of tissues collected at the time intervals of 12-396 h from animals that continuously (up to 17 d) received 82Br...

journal_title：Biological trace element research

authors： Pavelka S,Babický A,Vobecký M,Lener J,Svandová E

更新日期：2000-07-01 00:00:00

abstract：:Vanadium, a trace element in human cells and regarded as an essential nutrient, plays an active role in all tissues. It is known that peroxovanadate-nicotinic acid (POV), a complex compound of vanadium, can decrease hyperglycemia; however, its biochemical mechanism remains unclear. The object of the present study is t...

journal_title：Biological trace element research

authors： Wang YL,Yu B

更新日期：2000-06-01 00:00:00

abstract：:The toxicological literature is replete with studies attempting to explain the mechanism of action of organophosphorus (OP) insecticides to their anticholinesterase activities, but not much is known about the metabolism and detoxification of these compounds. The goal of this study was to ascertain the toxic effects of...

journal_title：Biological trace element research

authors： Goel A,Chauhan DP,Dhawan DK

更新日期：2000-05-01 00:00:00

abstract：:Suppression subtractive hybridization analysis in our laboratory recently revealed that transferrin mRNA may be elevated in Sedeficient rat liver. In this work, we compared expression in rat liver of genes for transferrin, transferrin receptor, ferritin light and heavy chains, and iron-regulatory proteins 1 and 2 in S...

journal_title：Biological trace element research

authors： Christensen MJ,Olsen CA,Hansen DV,Ballif BC

更新日期：2000-04-01 00:00:00

abstract：:Plasma and erythrocyte lipid peroxidation levels of 20 patients with histopathologically confirmed testis cancer and 20 healthy control individuals were studied between November 1995 and June 1997. The group with testis cancer had a mean age of 24.8+/-8.2 yr and the control group's mean age was 28.3+/-6.9 yr. Stage di...

journal_title：Biological trace element research

authors： Oztürk B,Güven M,Arpaci F,Kömürcü S,Ozet A,Beyzadeoğlu M

更新日期：2000-02-01 00:00:00

abstract：:The degree of chromosome damage induced by three compounds of zinc (zinc chloride, zinc sulfate, zinc acetate) was compared in human leucocytes in vitro. Three concentrations of each salt, 3.0 x 10(-5)M, 3.0 x 10(-4)M, and 1.5 x 10(-3)M, were added to leukocyte cultures. The cells were harvested after 48 and 72 h and ...

journal_title：Biological trace element research

authors： Santra M,Talukder G,Sharma A

更新日期：2000-01-01 00:00:00

abstract：:The purpose of this study was to evaluate the effects of cadmium-induced peroxidative damage to rat liver, heart, and spleen. Sprague-Dawley rats were injected subcutaneously with a single dose of 25, 125, 500, or 1250 microg Cd/kg and evaluated 6, 12, 24, or 72 h later. Liver, heart, and spleen were analyzed for lipi...

journal_title：Biological trace element research

authors： Yiin SJ,Chern CL,Sheu JY,Lin TH

更新日期：2000-01-01 00:00:00

abstract：:Reversed-phase liquid chromatography-inductively coupled plasma mass spectrometric hyphenation was used for iodine speciation in human serum. First investigations showed that iodine species nearly quantitatively were eluted in the void volume. The result indicated that protein-linked thyroid hormones were not interact...

journal_title：Biological trace element research

authors： Michalke B,Schramel P,Witte H

更新日期：2000-01-01 00:00:00

abstract：:The purpose of current study was to determine the step at which dietary selenium (Se) regulates the transcriptional expression of the gene for Se-glutathione peroxidase (Se-GPx) in rat brain and transplanted glioma tissue. Wistar rats were fed a Se-free diet or the same diet supplemented with 0.5, 2.0, and 4.0 mg Se/k...

journal_title：Biological trace element research

authors： Zhang Z,Miyatake S,Saiki M,Asahi M,Yukawa H,Toda H,Kikuchi H,Yoshimura SI,Hashimoto N

更新日期：2000-01-01 00:00:00

abstract：:Adaptive alterations in glutathione (GSH) metabolism were studied during oxidative stress induced by selenium (Se) deficiency in germinating seedlings of Trigonella foenum-graecum grown for 72 h and the response to supplementation individually of Se or mimosine was explored. Growth enhancement with improved mitochondr...

journal_title：Biological trace element research

authors： Santosh TR,Sreekala M,Lalitha K

更新日期：1999-12-01 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

authors： Zhang W,Ramanathan CS,Nadimpalli RG,Bhat AA,Cox AG,Taylor EW

更新日期：1999-11-01 00:00:00

abstract：:Negative potassium balance during hypokinesia (decreased number of kilometers taken/day) is not based on the potassium shortage in the diet, but on the impossibility of the body to retain potassium. To assess this hypothesis, we study the effect of potassium loading on athletes during prolonged hypokinesia (HK). Studi...

journal_title：Biological trace element research

authors： Zorbas YG,Kakurin VJ,Afonin VB,Kuznetsov NA,Yarullin VL,Denogradov SD

更新日期：1999-10-01 00:00:00

abstract：:To elucidate the element content of newborn blood vessels, umbilical arteries and veins in human umbilical cords, which had the advantage of easy sampling, were examined by ICP-AES. Umbilical cords were removed after birth. Mothers' ages ranged from 26 to 35 yr. It was found that the content of sulfur was the highest ...

journal_title：Biological trace element research

authors： Masuda M,Tohno S,Tohno Y,Minami T,Moriwake Y,Yamada M,Yamasaki M,Okazaki Y

更新日期：1999-09-01 00:00:00

abstract：:The distribution and chemical species of iodine in various subcellular fractions of human liver were studied by using epithermal neutron activation analysis combined with chemical and biochemical separation techniques, such as gradient centrifugation and gel chromatography. It was found that the total iodine content o...

journal_title：Biological trace element research

authors： Hou X,Chen C,Ding W,Chai C

更新日期：1999-07-01 00:00:00

abstract：:Biotransformation of inorganic arsenic in mammals is catalyzed by three serial enzyme activities: arsenate reductase, arsenite methyltransferase, and monomethylarsonate methyltransferase. Our laboratory has purified and characterized these enzymes in order to understand the mechanisms and elucidate the variations of t...

journal_title：Biological trace element research

authors： Healy SM,Wildfang E,Zakharyan RA,Aposhian HV

更新日期：1999-06-01 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

authors： Friel JK,Andrews WL,Jackson SE,Longerich HP,Mercer C,McDonald A,Dawson B,Sutradhar B

更新日期：1999-03-01 00:00:00

abstract：:We have previously shown that a low-copper (Cu) diet produced alterations in placental Cu transport and fetal Cu stores. Because Cu deficiency has been associated with lipid deposition in rat dam liver, we hypothesized that a high fat intake, a prevalent dietary habit in many populations, may worsen fetal Cu status an...

journal_title：Biological trace element research

authors： Ebesh O,Barone A,Harper RG,Wapnir RA

更新日期：1999-02-01 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

authors： Acosta PB,Yannicelli S

更新日期：1999-01-01 00:00:00

abstract：:The nuclear microscope is now gaining popularity in the field of life sciences. In particular, the combination of proton-induced X-ray emission to measure the elemental concentrations of inorganic elements, Rutherford backscattering spectrometry to characterize the organic matrix, and scanning transmission ion microsc...

journal_title：Biological trace element research

authors： Ren MQ,Thong PS,Makjanic J,Ponraj D,Watt F

更新日期：1999-01-01 00:00:00

abstract：:Since 1992, the International Atomic Energy Agency (IAEA) has been promoting studies of air pollution using a standard design of air sampler that provides separation on filters into two size fractions with cutoffs of 2.5 and 10 microns (approximately). These are the size ranges presently considered to have the most im...

journal_title：Biological trace element research

authors： Parr RM,Smodis B

更新日期：1999-01-01 00:00:00

abstract：:Three kinds of plant leaves, Chinese white aspen, arborvitae, and pine needles, have been sampled from the Yanshan Oil refinery complex, the Capital Iron and Steel Factory, and Badachu, a control area in Beijing, as biomonitors for air-pollution studies. Each sample was divided into two parts, washed, and unwashed. Th...

journal_title：Biological trace element research

authors： Ni B,Tian W,Nie H,Wang P,He G

更新日期：1999-01-01 00:00:00

abstract：:A radioecological survey in Antarctica shows that the 239 + 240Pu, 238Pu, 241Am, 90Sr, and 137Cs activities were detectable in nearly all the samples. The activity level of 239 + 240Pu, 241Am, and 137Cs in antarctic sediments was about 5-20 times lower than in the northern Adriatic Sea sediments, but the 238Pu activit...

journal_title：Biological trace element research

authors： Jia G,Triulzi C,Nonnis Marzano F,Belli M,Sansone U,Vaghi M

更新日期：1999-01-01 00:00:00

abstract：:The k0 standardization method was adapted for NAA with stable low-flux reactors where flux monitors are not needed. The modified k0 method offers the convenience of the use of libraries of sensitivity constants. It was compared to the relative method for 52 elements using a SLOWPOKE reactor and 6 counting geometries. ...

journal_title：Biological trace element research

authors： Kennedy G,StPierre J

更新日期：1999-01-01 00:00:00

abstract：:The onset of Alzheimer's disease has been shown to affect trace element concentrations in the brain when compared to "normal" subjects in ex vivo samples. The techniques used to determine trace element concentrations were proton-induced X-ray emission and instrumental neutron activation analysis. With these methods, s...

journal_title：Biological trace element research

authors： Cutts DA,Maguire RP,Stedman JD,Leenders KL,Spyrou NM

更新日期：1999-01-01 00:00:00

abstract：:Thirty rats were divided randomly into five groups and fed with different feeds. They were killed after 2 mo. Right thighs of these rats were taken as samples. Bone mineral densities of these samples were measured by the double-energy x-ray bone mineral densitometer, and trace elements contents of the samples were ana...

journal_title：Biological trace element research

authors： Nie H,Qin L,Tian W,Ni B,Bao A,Wang P

更新日期：1999-01-01 00:00:00

abstract：:Biominerals and metals of intertidal corals of two species (Heliofungia actiniformis, Quoy and Gaimard; Galaxea fascicularis, Linnaeus), collected from the Iriomote Island of Ryukyu, were examined with an inductively coupled plasma atomic emission spectrometer (ICP-AES). Twelve elements were detectable in the corallin...

journal_title：Biological trace element research

authors： Yamada G,Fujimori K,Yamada M,Minami T,Tohno S,Tohno Y

更新日期：1998-11-01 00:00:00

abstract：:Gut Zn homeostatic responses to low, replete, and excess dietary Zn (10, 150, and 400 mg Zn/kg, respectively) were compared in mice with (MT+/+) and without (MT-/-) metallothionein (MT) expression. MT concentrations decreased progressively from stomach (12.9 nmol Cd bound/g) to colon (4.6 nmol Cd bound/g). Small intes...

journal_title：Biological trace element research

authors： Tran CD,Butler RN,Philcox JC,Rofe AM,Howarth GS,Coyle P

更新日期：1998-09-01 00:00:00

abstract：:Aluminum (Al) absorption seems to be very low, but many factors can enhance it in animals and humans. In the present study, we investigated the acute effect of Na citrate on Al absorption by monitoring Al levels in blood and several tissues. For this purpose, 18 Wistar male rats were divided into 3 groups: control, Al...

journal_title：Biological trace element research

authors： Deng Z,Coudray C,Gouzoux L,Mazur A,Rayssiguier Y,Pépin D

更新日期：1998-08-01 00:00:00

abstract：:The effects of 10 wk of selenium (Se) supplementation (5 ppm) in drinking water on immune responses and resistance to a myocarditic Coxsackie virus B3 (CB3) infection were studied in female Balb/c mice. Se supplementation reduced CB3-induced mortality: at day 14 postinoculation, survival was 58% in the Se-treated grou...

journal_title：Biological trace element research

authors： Ilbäck NG,Fohlman J,Friman G

更新日期：1998-07-01 00:00:00

abstract：:The aim of this study was to evaluate the effect of a daily intake of fluid and salt supplementation (FSS) on the deficiency of electrolytes, which is characterized by higher rather than lower plasma concentration of electrolytes during prolonged hypokinesia (HK) (decreased number of km taken per day). Forty long dist...

journal_title：Biological trace element research

authors： Zorbas YG,Yaroshenko YY,Kuznetsov NK,Matvedev SL

更新日期：1998-07-01 00:00:00

abstract：:The effects of dietary sodium selenite and vitamin E on the microvascular permeability of rat organs such as heart, brain, kidney, liver and eye were investigated by using the Evans blue leakage method. Combined deficiency of selenium and vitamin E caused an increase in the permeability of the heart and eye with respe...

journal_title：Biological trace element research

authors： Demirel-Yilmaz E,Dinçer D,Yilmaz G,Turan B

更新日期：1998-07-01 00:00:00

abstract：:Naphthalene-1-acetic acid (HNAA), dichlorophenoxy acetic acid (HDAA), and indole-3-acetic acid (HIAA) are auxinhormones that can affect the growth of plants. The lanthanide complexes of the above auxinhormone LnA3 x 3H2O (Ln = La3+, Ce3+, Sm3+, Er3+, Yb3+; HA = HNAA, HDAA, HIAA; A = NAA-, DAA-, IAA-) were synthesized ...

journal_title：Biological trace element research

authors： Wenmian H,Jian F,Zhengzhi Z

更新日期：1998-07-01 00:00:00