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Journal of Trace Elements in Medicine and Biology

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https://www.readbyqxmd.com/read/29066001/antiproliferative-and-proapoptotic-activity-of-molecular-copper-ii-complex-of-n-1-tosylcytosine
#1
Ljubica Glavaš-Obrovac, Marijana Jukić, Katarina Mišković, Ivana Marković, Dijana Saftić, Željka Ban, Josipa Matić, Biserka Žinić
In an attempt to enhance the previously observed antiproliferative capacity of 1-(p-toluenesulfonyl)cytosine (N-1-tosylcytosine, ligand 1), its copper(II) complex (Cu(1-TsC-N3)2Cl2, complex 2) was prepared and tested in vitro on various carcinoma and leukemia cells. The comparative in vitro studies using the ligand 1, the complex 2, CuCl2x2H2O salt (salt 3) and the 1:2 mixture of the salt 3 and ligand 1 (mixture 4) were performed on normal (WI38), human carcinoma (HeLa, CaCo2, MiaPaCa2, SW620), lymphoma (Raji) and leukemia (K562) cell lines...
October 18, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29066364/evidence-for-molecular-antagonistic-mechanism-between-mercury-and-selenium-in-rice-oryza-sativa-l-a-combined-study-using-1-2-dimensional-electrophoresis-and-sr-xrf-techniques
#2
Yunyun Li, Hong Li, Yu-Feng Li, Jiating Zhao, Jingxia Guo, Ru Wang, Bai Li, Zhiyong Zhang, Yuxi Gao
Mercury (Hg) is a hazardous chemical in the environment and can accumulate in the food chain. Selenium (Se) is a necessary element for human health and has antagonistic effects on Hg toxicity. In this work, we investigated the effect of Se on Hg containing and Hg-responsive proteins in rice using 1, 2-dimensional electrophoresis combined with SR-XRF techniques. Two weeks old rice seedlings were exposed to Hg and/or Se compounds. After 21days proteins in the rice roots were separated by electrophoresis and their metal contents were determined by X-ray fluorescence to identify Hg and Se responsive biomolecules...
October 16, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28941826/icp-drc-ms-analysis-of-serum-essential-and-toxic-element-levels-in-postmenopausal-prediabetic-women-in-relation-to-glycemic-control-markers
#3
Margarita G Skalnaya, Anatoly V Skalny, Eugeny P Serebryansky, Vasily V Yurasov, Anastasia A Skalnaya, Alexey A Tinkov
PURPOSE: Assessment of the influence of prediabetes on serum trace element and electrolyte levels in postmenopausal women. METHODS: A total of 80 prediabetic and 80 healthy postmenopausal women took part in the present study. Serum was analyzed for glucose, insulin, insulin resistance index (HOMA-IR), total cholesterol (TC), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma-glutamyltransferase (GGT). Glycated haemoglobin (HbA1c) levels were also assessed...
September 14, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965609/mercury-in-breast-milk-from-women-in-the-federal-district-brazil-and-dietary-risk-assessment-for-breastfed-infants
#4
Fernanda M Rebelo, Leandro R da Cunha, Patrícia D Andrade, Walkimar A da Costa Junior, Wanderley R Bastos, Eloisa D Caldas
Mercury is a toxic metal, ubiquitous in nature; it is excreted in breast milk from exposed mothers and may affect infant neuro-development. In this study, 224 breast milk samples provided by eight human milk banks in the Federal District of Brazil were analyzed for total mercury (THg), of which 183 were also analyzed for methyl mercury (MeHg), the most relevant form of this metal for the breastfed infants. Samples were acid digested in a microwave oven and THg determined by atomic fluorescence spectrometry (LOQ of 0...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965608/-67-ga-as-a-biosensor-of-iron-needs-in-different-organs-study-performed-on-male-and-female-rats-subjected-to-iron-deficiency-and-exercise
#5
Patricia Vieyra-Reyes, Rigoberto Oros-Pantoja, Eugenio Torres-García, Agustín Gutiérrez-Ruiz, Jonathan Pérez-Honorato
The aim of the present study was to determine the iron needs in different organs and tissues using (67)Ga as a biosensor in males and females rats subjected to iron deficiency (ID) and voluntary exercise (EX). (67)Ga citrate was injected i.p. to female and male Wistar rats (n=5/sex/group). Groups: Control (sedentary conditions), Control+EX, ID and ID+EX. To determine the (67)Ga uptake, samples from the following regions of interest (ROIs) were extracted 12h post-injection: blood, liver, gonads, bone marrow, heart, adrenal glands, skeletal muscle, stomach, kidney, eyeball, sciatic nerve, small intestine and peritoneum...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965607/effects-of-sulforaphane-and-vitamin-e-on-cognitive-disorder-and-oxidative-damage-in-lead-exposed-mice-hippocampus-at-lactation
#6
Beibei Sun, Xiaohuan Zhang, Yanyan Yin, Hualei Sun, Huina Ge, Wenjie Li
OBJECT: To investigate the effects of sulforaphane (SFN) and vitamin E (VE) on spatial learning and memory ability and oxidative damage of hippocampus in lead-exposed mice at lactation. METHODS: A total of 18 adult Kunming mice, all 12 female mice were divided into two groups by body weight randomly, 10 mice drank water containing 0.2% lead acetate at lactation, the other 2 mice drank lead free deionized water named as the normal group. Then, they were mated at a 1:2 ratio of male to female...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965606/mineral-status-and-superoxide-dismutase-enzyme-activity-in-alzheimer-s-disease
#7
Gilmara Péres Rodrigues, Silvia Maria Franciscato Cozzolino, Dilina do Nascimento Marreiro, Daniele Rodrigues Carvalho Caldas, Kelcylene Gomes da Silva, Kaluce Gonçalves de Sousa Almondes, José Machado Moita Neto, José Alexandre Coelho Pimentel, Cecília Maria Resende Gonçalves de Carvalho, Nadir do Nascimento Nogueira
The study evaluated the dietary intake of zinc and copper, as measured by plasma and erythrocyte concentrations, the Cu/Zn ratio and measure the erythrocyte superoxide dismutase enzyme (eSOD) activity and the relationship between these markers and the degree of dementia in elderly individuals with and without Alzheimer's Disease (AD). A total of 93 elderly people aged 60-94 years were divided into two groups: with AD (n=44) and without AD (n=49). The NINCDS-ADRDA criteria were used for diagnosing AD, and dementia staging was determined using the Clinical Dementia Rating (CDR) scale...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965605/the-effect-of-selenium-supplementation-on-coronary-heart-disease-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#8
REVIEW
W Ju, X Li, Z Li, G R Wu, X F Fu, X M Yang, X Q Zhang, X B Gao
BACKGROUND: Selenium is a crucial mineral with antioxidant and immune functions, and selenium deficiency may increase the risk of coronary heart disease (CHD). However, the effect of selenium supplementation on CHD is still controversial according to numerous randomized controlled trials (RCTs). The aim of our meta-analysis study was to investigate the impact of selenium on CHD. METHODS: PUBMED, EMBASE, MEDLINE, and the Cochrane Central Register of Controlled Trials databases were systematically searched to identify RCTs evaluating the effect of selenium supplementation on CHD mortality, blood lipid profile (high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and total cholesterol), serum C-reactive protein (CRP), and the level of glutathione peroxidase (GSH-PX) from inception until September 20, 2016...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965604/zinc-chelation-decreases-ifn-%C3%AE-induced-stat1-upregulation-and-inos-expression-in-raw-264-7-macrophages
#9
Cathleen Reiber, Anne Brieger, Gabriela Engelhardt, Silke Hebel, Lothar Rink, Hajo Haase
One consequence of lipopolysaccharide (LPS)-induced stimulation of macrophages is the release of Interferon (IFN)-β, and subsequently the activation of the JAK-STAT1 pathway, resulting in the expression of inducible nitric oxide synthase (iNOS). Free intracellular zinc ions (Zn(2+)) have a profound impact as a second messenger in LPS-dependent gene expression. Previous work had indicated a Zn(2+)-dependent upregulation of STAT1 mRNA in response to LPS and IFN-β, potentially affecting STAT1-dependent downstream signaling upon pre-incubation with these agents...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965603/investigating-the-influence-of-standard-staining-procedures-on-the-copper-distribution-and-concentration-in-wilson-s-disease-liver-samples-by-laser-ablation-inductively-coupled-plasma-mass-spectrometry
#10
Oliver Hachmöller, Michaela Aichler, Kristina Schwamborn, Lisa Lutz, Martin Werner, Michael Sperling, Axel Walch, Uwe Karst
The influence of rhodanine and haematoxylin and eosin (HE) staining on the copper distribution and concentration in liver needle biopsy samples originating from patients with Wilson's disease (WD), a rare autosomal recessive inherited disorder of the copper metabolism, is investigated. In contemporary diagnostic of WD, rhodanine staining is used for histopathology, since rhodanine and copper are forming a red to orange-red complex, which can be recognized in the liver tissue using a microscope. In this paper, a laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) method is applied for the analysis of eight different WD liver samples...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965602/intestinal-fate-of-dietary-zinc-and-copper-postprandial-net-fluxes-of-these-trace-elements-in-portal-vein-of-pigs
#11
J Jacques Matte, Christiane L Girard, Frédéric Guay
In pig, the assessment of bioavailability of dietary trace minerals with classical approaches such as relative bioavailability estimates or digestive tract balances have often generated inconsistent responses. In the present study, net portal-drained-viscera fluxes were monitored after a meal to assess intestinal absorption of zinc (Zn) or copper (Cu) according to dietary sources and levels of these trace minerals. Twelve pigs were surgically equipped with portal and carotid catheters and a portal ultrasonic flow probe for 12-h postprandial measurements...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965601/the-role-of-lysosomes-in-the-phenomenon-of-concentration-of-aluminum-and-indium-in-the-female-reproductive-system-an-ultrastructural-study
#12
REVIEW
Mhamdi Marwa, Florea Adrian, Badri Nedra, Maghraoui Samira, Matei Horea, Tekaia Walid-Habib, Rym Baati, Tekaya Leila
The female reproductive system is one of the most complex systems in the body taking into account the hormonal fluctuations associated with ovarian and uterine menstrual cycles. The purpose of this work was to study the impact of aluminum nitrate and indium sulfate on the uterus and the ovary of a pregnant rat. The experiment was performed on adult female rats of Wistar strain weighing approximately 250g. The Transmission Electron Microscopy (TEM) showed the presence of electron-dense material in lysosomes of both uterine cells (myometrium and endometrium cells) and in the cells of the ovary (internal theca and granulosa cells)...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965600/evaluation-of-silicon-influence-on-the-mitigation-of-cadmium-stress-in-the-development-of-arabidopsis-thaliana-through-total-metal-content-proteomic-and-enzymatic-approaches
#13
Josiane M T Carneiro, Katherine Chacón-Madrid, Rodrigo M Galazzi, Bruna K Campos, Sandra C C Arruda, Ricardo A Azevedo, Marco A Z Arruda
The mitigation of Cd-stress through Si addition to Arabidopsis thaliana cultivation is evaluated in terms of total metal content, proteomic and enzymatic approaches. Four different treatment are evaluated: TC (control, without Si or Cd addition), T1 (with Si addition), T2 (with Cd addition), and T3 (with Si and Cd addition). Through the total determination of Cd and Si in Arabidopsis leaves, the Cd concentration decreased by half when T2 is compared with T3 treatment. In terms of proteomic approach, some differential protein species are achieved by comparative proteomics through 2-D DIGE of all treatments evaluated...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965599/selenium-protein-identification-and-profiling-by-mass-spectrometry-a-tool-to-assess-progression-of-cardiomyopathy-in-a-whale-model
#14
Colleen E Bryan, Gregory D Bossart, Steven J Christopher, W Clay Davis, Lisa E Kilpatrick, Wayne E McFee, Terrence X O'Brien
Non-ischemic cardiomyopathy is a leading cause of congestive heart failure and sudden cardiac death in humans and in some cases the etiology of cardiomyopathy can include the downstream effects of an essential element deficiency. Of all mammal species, pygmy sperm whales (Kogia breviceps) present the greatest known prevalence of cardiomyopathy with more than half of examined individuals indicating the presence of cardiomyopathy from gross and histo-pathology. Several factors such as genetics, infectious agents, contaminants, biotoxins, and inappropriate dietary intake (vitamins, selenium, mercury, and pro-oxidants), may contribute to the development of idiopathic cardiomyopathy in K...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965598/toxicological-effects-and-ultrastructural-changes-induced-by-lanthanum-and-cerium-in-ovary-and-uterus-of-wistar-rats
#15
Nedra Badri, Adrian Florea, Maroua Mhamdi, Horea Matei, Walid-Habib Tekaya, Rym Bâati, Samira Maghraoui, Leila Tekaya
Rare earths have been widely used in a huge number of areas in industry and medicine. Therefore, they exist in the environment and possibly accumulated within the human body. However their effects in the living organism particularly in the female reproductive system are still unclear. In this work, the subcellular behavior of lanthanum and cerium was investigated through the Transmission Electron Microscopy (TEM), in different territories of the reproductive system of Wistar rats exposed intraperitoneally to soluble solution of these elements during 2 weeks...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965597/new-insights-into-the-metal-partitioning-in-different-microphases-of-human-gallstones
#16
Annika Parviainen, Manuel Jesús Roman-Alpiste, Claudio Marchesi, Juan Manuel Suárez-Grau, Rafael Pérez-López
Chronic metal exposure, e.g. from metal mining, may cause accumulation of metals in soft and hard tissues, and in developing biomineralizations in the human body. Gallstones are biomineralizations formed in the gallbladder which are able to trap trace elements from the bile. Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) was used to analyze gallstone cross-sections to trace the elemental abundances and correlate them with the principal phases constituting gallstones, namely cholesterol, Ca bilirubinate salts, Ca carbonate, and Ca phosphate...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965596/serum-quantitative-proteomic-analysis-of-patients-with-keshan-disease-based-on-itraq-labeling-technique-a-first-term-study
#17
YuXiao Sun, ChuanYu Gao, XianQing Wang, YiQiang Yuan, YuHao Liu, JunGe Jia
Keshan disease (KD), an endemic myocardiopathy, with unknown etiology, is still threatening human health. Proteomics studies of Keshan disease is rarely known. In the current study, isobaric tags for relative and absolute quantitation (iTRAQ) labeling coupled with two-dimensional liquid chromatography-tandem mass spectrometry (2D-LC-MS/MS) was firstly used to screen for the differentially expressed proteins (DEPs) in serum between Keshan disease and healthy residents in endemic area. 27 differentially expressed proteins were quantified, 9 of which were significantly altered (fold change > 1...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965595/dietary-and-blood-selenium-are-inversely-associated-with-the-prevalence-of-stroke-among-inuit-in-canada
#18
Xue Feng Hu, Tasnia Sharin, Hing Man Chan
Inuit in Canada have high selenium intake from the consumption of country food such as fish and marine mammals. The health consequence is not known. This study examines the association between blood selenium concentration and prevalence of stroke among Canadian Inuit. The International Polar Year Inuit Health Survey was conducted in 2007-2008. Among the 2077 adults participants (≥18years old) who completed a questionnaire and gave blood samples, 49 stroke cases were reported, 31 of which were from women. The crude prevalence of stroke was 2...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965594/effects-of-binary-metal-combinations-on-zinc-copper-cadmium-and-lead-uptake-and-distribution-in-brassica-juncea
#19
Agnieszka Kutrowska, Arleta Małecka, Aneta Piechalak, Wacław Masiakowski, Anetta Hanć, Danuta Barałkiewicz, Barbara Andrzejewska, Janina Zbierska, Barbara Tomaszewska
The interaction between lead, copper, cadmium and zinc in their binary combinations was investigated in Indian mustard seedlings (Brassica juncea L. var. Malopolska). Fourteen-days-old seedlings were treated with Pb(NO3)2, CuSO4, CdCl2, ZnSO4 at 50μmol of metal ion concentration and at 25μmol of each metal ion in combinations. Metal combinations were generally more inhibiting in terms of biomass production. This inhibiting effect followed an order: Cu+Cd>Cu+Zn, Cd+Pb>Cu+Pb>Zn+Pb, Cu>Cd>Zn>Zn+Cd>Pb...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965593/isoproterenol-exacerbates-hyperglycemia-and-modulates-chromium-distribution-in-mice-fed-with-a-high-fat-diet
#20
Geng-Ruei Chang, Wen-Kai Chen, Po-Hsun Hou, Frank Chiahung Mao
BACKGROUND AND PURPOSE: Isoproterenol (ISO), a nonselective β-adrenoceptor agonist for treating bradycardia and asthma, has been proposed to raise blood glucose level. Little is known regarding the relationship between ISO treatment, the induced chromium (Cr) redistribution, and changes in glucose metabolism. We aimed to characterize the effects of a single dose of ISO on glucose homeostasis and Cr level changes in an obesity mouse model. METHODS: Mice (C57BL6/j strain) were first fed for a continuous period of 12 weeks with either a high fat diet (HFD), to develop an obesity animal model, or a standard diet (SD), to develop a lean animal model as controls...
December 2017: Journal of Trace Elements in Medicine and Biology
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