Abstract:
:The toxic effect of Pb2+ has been studied in eukaryotic cells by using Tetrahymena as a target. The maximum power (P(m)) and the growth rate constant (k) were determined, which showed that values of P(m) and k were linked to the concentration (C) of Pb2+. The addition of Pb2+ caused a decrease of the maximum heat production and growth rate constant, indicating that Tetrahymena growth was inhibited in the presence of Pb2+, and Pb2+ took part in the metabolism of cells. From micrographs, morphological changes of Tetrahymena were observed with addition of Pb2+, indicating that the toxic effect of Pb2+ derived from destroying the membrane of surface of Tetrahymena. According to the thermogenic curves and photos of Tetrahymena under different conditions, it is clear that metabolic mechanism of Halobacterium halobium R1 growth has been changed with the addition of Pb2+.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Peng L,Weiying Z,Xi L,Xiaojuan C,Chaocan Zdoi
10.1007/s12011-007-0055-3subject
Has Abstractpub_date
2007-11-01 00:00:00pages
175-82issue
2eissn
0163-4984issn
1559-0720pii
BTER:119:2:175journal_volume
119pub_type
杂志文章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::Overall nutritional status has been proved associated with people's health. The overall nutritional status of children in Kashin-Beck disease (KBD) areas has been overlooked for decades. Therefore, it is worth investigating in the current generation to gather evidence and make suggestions for improvement. A cross-sect...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-017-1154-4
更新日期:2018-06-01 00:00:00
abstract::Cactus (Opuntia ficus-indica) is a xerophyte plant that belongs to the Cactaceae family. The present study was designed to investigate the possible protective effects of cactus cladodes extract (CCE) on sodium dichromate-induced testis damage in adult male Wistar rats. For this purpose, CCE at a dose of 100 mg/kg was ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-014-9969-8
更新日期:2014-06-01 00:00:00
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::The aim of present study was to compare the level of manganese (Mn) with thyroid functions, thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxin (FT4) of females having hyper- (HPRT) and hypothyroid (HPOT) disorder. For comparative study, females of the same age group (16-30 years) having ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-015-0277-8
更新日期:2015-10-01 00:00:00
abstract::Adverse effects of mercury on female reproduction are reported; however, its effect on myogenic activity of uterus and mechanism thereof is obscure. Present study was undertaken to unravel the mechanistic pathways of mercuric chloride (HgCl2)-induced myometrial contraction in rats. Isometric tension in myometrial stri...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-018-1379-x
更新日期:2019-02-01 00:00:00
abstract::This study evaluated the plasma levels of trace elements in children with chronic hepatitis B virus (HBV) infection and assessed whether they can be a factor that affects the response to interferon alpha (IFN-alpha) treatment. The study included 35 cases (ten girls, 25 boys) aged 3-13 years with chronic HBV infection ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-009-8507-6
更新日期:2010-06-01 00:00:00
abstract::The new range of sealed-tube neutron generators developed by SODERN appears to be appropriate for the industrial environment. The main characteristics are the high emission stability during the very long lifetime of the tube, flexible pulsed mode capability, safety in operation with no radiation in "off" state, and th...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02917309
更新日期:1994-10-01 00:00:00
abstract::Soaking of a rat diet, high in both plant phytate and phytase, progressively degraded the phytate content with time of soaking. This dephytinization in turn enhanced the digestion of feed organic matter in the animals, and it significantly improved the absorption and retention of minerals and trace elements as observe...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783810
更新日期:1993-10-01 00:00:00
abstract::The forms of Se in the Se-dependent enzyme formate dehydrogenase is known to be selenocysteine, but the way this amino acid enters the polypeptide chain has not been established. Through the use of a cysteine-requiring mutant ofEscherichia coli K-12 that could also grow in the presence of glutathione, we were able to ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02795520
更新日期:1986-12-01 00:00:00
abstract::In the affiliation section, Luiz Fabricio Zara's affiliation "Pontifical Catholic University of Goiás (PUC), Goiânia, GO, Brazil" was incorrect. The correct affiliation is College of Planaltina, UnB - University of Brasília, Distrito Federal, Brazil. ...
journal_title:Biological trace element research
pub_type: 杂志文章,已发布勘误
doi:10.1007/s12011-017-1195-8
更新日期:2018-05-01 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
pub_type: 杂志文章
doi:10.1385/BTER:77:3:287
更新日期:2000-12-01 00:00:00
abstract::Consumption of edible plants satisfies a significant part of human body needs in macro- and micronutrients while biologically active substances contain strong antioxidant properties and reduce the risk of a number of diseases. Balanced nutrition and design of personalized diets and treatment rely on the data on the co...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02345-y
更新日期:2020-08-19 00:00:00
abstract::Smoking is one of the major causes of mortality and numerous diseases, both directly and indirectly. The role of smoking as a significant risk factor is already known in several human diseases such as cardiovascular diseases, lung cancer, and chronic obstructive pulmonary disease. We aimed to compare the toxicity of h...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02537-6
更新日期:2021-01-20 00:00:00
abstract::Selenium and mercuric chloride (MC) interactions regarding cellular uptake and selenium protection on MC 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 MC (35 or 50 microM). Both treatment...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1385/BTER:81:3:229
更新日期:2001-09-01 00:00:00
abstract::The purpose of this study was to assess insoluble salts containing gadolinium (Gd(3+)) for effects on human dermal fibroblasts. Responses to insoluble Gd(3+) salts were compared to responses seen with Gd(3+) solubilized with organic chelators, as in the Gd(3+)-based contrast agents (GBCAs) used for magnetic resonance ...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-011-9176-9
更新日期:2012-02-01 00:00:00
abstract::The chronic exposure to Aluminum (Al) may compromise different liver functions, mainly during the hepatic regeneration. The aim of this study is to investigate the interactions between the chronic i.p. exposure to Al and hepatic regeneration (HR) on bile flow and organic anion transport in experimental animals. For th...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-008-8234-4
更新日期:2009-02-01 00:00:00
abstract::The increase in the prevalence of metabolic disorders globally is becoming a public health concern. Previous studies have reported an association between environmental exposures to hazardous substances, including various heavy metals, and the risk for metabolic syndrome. However, reports on the contributions of cadmiu...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-020-02502-3
更新日期:2021-01-06 00:00:00
abstract::Trace elements can influence dental health, possibly by altering tooth resistance during preeruptive development. Therefore, it was investigated whether lead and fluoride would be incorporated into the calcifying matrices or the cellular parts of tooth germs in vitro. Using laser microprobe mass analysis, the localiza...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02917184
更新日期:1989-01-01 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::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::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::Electron energy loss spectroscopy (EELS) is a high spatial resolution electron microscopic technique with the potential to quantify elements at the subcellular level. The presence of each element is demonstrated by the electron energy loss edge at the energy characteristic of that element. The area of the edge may ind...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02916819
更新日期:1994-01-01 00:00:00
abstract::Concentrations of toxic elements (lead, cadmium, mercury, and arsenic) were measured in water, sediment, and four commercial fish species (Cyprinus carpio, Hypophthalmichthys molitrix, Silurus glanis, and Esox lucius) and their tissues (muscle, liver, and kidney) from Saničani Lake, Bosnia and Herzegovina. The concent...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-019-01982-2
更新日期:2020-09-01 00:00:00
abstract::Preoperative diagnosis of papillary thyroid carcinoma (PTC) comprises numerous diagnostic procedures which are mostly applicable in tertiary institutions. Normal thyroid function depends on the presence of many trace elements and copper (Cu) and zinc (Zn) are some of those. The study is based on retrospective review o...
journal_title:Biological trace element research
pub_type: 临床试验,杂志文章
doi:10.1007/s12011-014-0071-z
更新日期:2014-09-01 00:00:00
abstract::The aim of the present study was to examine the effects of exogenous selenium (Se) supplementation on the tolerance of pepper (Capsicum annuum L.) cv. Suryamukhi Cluster plants to cadmium (Cd) phytotoxicity at the reproductive stage. The pepper plants were supplied with Cd (0, 0.25 or 0.50 mM) and Se (0, 3 or 7 μM), i...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-014-0028-2
更新日期:2014-07-01 00:00:00
abstract::The association between serum copper and zinc concentrations and age, sex, and other risk factors of cardiovascular disease in randomly selected adult volunteers aged 19-59 were investigated. There was a positive relationship between copper and age in both sexes, but zinc was negatively correlated with age in males on...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02950795
更新日期:1994-03-01 00:00:00
abstract::In the current study, 48 male rats were classified into four groups (12 rats/group): 1-control group received 1 ml distilled water, 2-origanum oil group treated daily with oral dose of origanum oil (5 mg/kg) for 30 and 60 days, 3-mercuric chloride group treated daily with oral dose of mercuric chloride (4 mg/kg) for 3...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/s12011-017-1067-2
更新日期:2018-03-01 00:00:00
abstract::The levels of iron, zinc, and copper in the tissues of the pregnant rat, on d 12, 19, and 21 after impregnation have been determined and compared with controls. Iron levels decreased considerably in late pregnancy as a result of increased fetal requirements, thus diminishing iron stores in rat tissues, but maintaining...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02917464
更新日期:1985-09-01 00:00:00
abstract::Aspergillus terreus was cultivated on Harrold's medium supplemented with 0.1% (w/v) cadmium chloride as well as on sulfur free medium amended with 0.1% (w/v) sodium selenite and potassium tellurite separately. The cell free extract of the fungus for each treatment was fractionated on a column packed with Sephadex G 75...
journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02990464
更新日期:1991-03-01 00:00:00