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Biological Trace Element Research

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https://www.readbyqxmd.com/read/30421162/orthosilicic-acid-accelerates-bone-formation-in-human-osteoblast-like-cells-through-the-pi3k-akt-mtor-pathway
#1
Hongming Zhou, Guangjun Jiao, Meng Dong, Hai Chi, Hongliang Wang, Wenliang Wu, Haichun Liu, Shanwu Ren, Meng Kong, Ci Li, Lu Zhang, Yunzhen Chen
Silicon is one of the essential trace elements in the human body; the deficiency of which may lead to bone diseases. Numerous animal experiments have shown that an appropriate increase in the intake of silicon is beneficial to enhancing bone density and toughness to prevent osteoporosis. However, the molecular mechanisms of the silicon-mediated osteogenesis process have not been sufficiently clarified. In this study, we determined the possible osteogenesis-related mechanisms of orthosilicic acid at a molecular level...
November 12, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30417263/beneficial-effects-of-n-acetyl-l-cysteine-or-taurine-pre-or-post-treatments-in-the-heart-spleen-lung-and-testis-of-hexavalent-chromium-exposed-mice
#2
I İpek Boşgelmez, Gülin Güvendik
Hexavalent chromium[Cr(VI)] compounds may induce toxic effects, possibly via reactive intermediates and radicals formed during Cr(VI) reduction. In this study, we probed the possible effects of N-acetyl-L-cysteine (NAC) and taurine pre- or post-treatments on Cr(VI)-induced changes in lipid peroxidation and nonprotein thiols (NPSH) in mice heart, lung, spleen, and testis tissues. The mice were randomly assigned to six groups, consisting of control, Cr(VI)-exposed (20 mg Cr/kg, intraperitoneal ,ip), NAC (200 mg/kg, ip) as pre-treatment and post-treatment, and taurine (1 g/kg, ip) pre-treatment and post-treatment groups...
November 12, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30414004/gm1-ameliorates-lead-induced-cognitive-deficits-and-brain-damage-through-activating-the-sirt1-creb-bdnf-pathway-in-the-developing-male-rat-hippocampus
#3
Fei Chen, Can-Can Zhou, Yin Yang, Jian-Wen Liu, Chong-Huai Yan
Developmental lead (Pb) exposure involves various serious consequences, especially leading to neurotoxicity. In this study, we examined the possible role of monosialoganglioside (GM1) in lead-induced nervous impairment in the developing rat. Newborn male Sprague-Dawley rat pups were exposed to lead from birth for 30 days and then subjected to GM1 administration (0.4, 2, or 10 mg/kg; i.p.) or 0.9% saline. The results showed that developmental lead exposure significantly impaired spatial learning and memory in the Morris water maze test, reduced GM1 content, induced oxidative stress, and weakened the antioxidative systems in the hippocampus...
November 9, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30414003/total-bioavailable-organic-selenium-in-fishmeal-based-diet-influences-growth-and-physiology-of-juvenile-cobia-rachycentron-canadum-linnaeus-1766
#4
Hung Duc Pham, Muhammad A B Siddik, Ravi Fotedar, Chau Minh Nguyen, Ashfaqun Nahar, Sanjay K Gupta
The study examined the effects of supplemental organic selenium (Se) extracted from selenoyeast on the growth performance, glutathione peroxidase (GPx) activity, biochemical status and liver histochemistry of juvenile cobia Rachycentron canadum. Six experimental diets were prepared supplemented with Se with total concentration of 1.52 (Se-1.52), 1.93 (Se-1.93), 2.29 (Se-2.29), 2.71 (Se-2.71) and 3.14 (Se-3.14) mg/kg of total Se in the diets and a fishmeal-based control diet without Se supplementation containing 1...
November 9, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30414002/influence-of-strontium-on-vascular-endothelial-growth-factor-and-fibroblast-growth-factor-2-expression-in-rat-chondrocytes-cultured-in-vitro
#5
Xiaoyan Zhu, Yezi Kong, Yan Huang, Baoyu Zhao, Jianguo Wang
Strontium (Sr) can reduce cartilage degeneration and stimulate cartilage matrix formation. Angiogenesis plays a developmental role in chondrogenesis, and was stimulated by growth factors such as vascular endothelial growth factor (VEGF) and fibroblast growth factor 2 (FGF2). However, the direct influence of Sr on VEGF and FGF2 expressions in chondrocytes is not entirely clear. The objective of this study was to investigate the effects of different Sr concentrations on VEGF and FGF2 expressions in rat chondrocytes in vitro...
November 9, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30414001/effects-of-dietary-organic-inorganic-and-nanoparticulate-zinc-on-rainbow-trout-oncorhynchus-mykiss-larvae
#6
Zahra Shahpar, Seyed Ali Johari
The present study was conducted to investigate the effects of different dietary zinc sources on growth performance, survival, and body composition of larval rainbow trout, Oncorhynchus mykiss. A total of 3240 larvae with an average weight of 82.3 ± 11.6 mg were randomly divided into four groups by three replicates and were fed for 70 days. Organic zinc (Zn-proteinate, Bioplex Zn®), mineral zinc (ZnSO4 ), and nanoparticulate zinc (ZnO-NPs) were each added to the basal diet at 50-mg/kg diet. In all of the zinc-supplemented groups, final body weight (FBW) and weight gain (WG) increased significantly (P < 0...
November 9, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30406490/expression-profiles-of-selenium-related-genes-in-human-chondrocytes-exposed-to-t-2-toxin-and-deoxynivalenol
#7
Lei Yang, Jianping Zhang, Xiaomei Li, Chao Xu, Xi Wang, Xiong Guo
The combination of excess mycotoxin exposure and selenium deficiency has been widely considered as a cause of Kashin-Beck disease (KBD). The present study aimed to investigate the expression profiles of selenium-related genes in human chondrocytes after exposure to T-2 toxin and deoxynivalenol (DON) and to preliminarily identify the potential biological functions of the identified genes. Gene expression profiling was performed on human chondrocytes treated with 0.01 μg/ml T-2 toxin and 1.0 μg/ml DON by using Affymetrix Human Gene Arrays...
November 7, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30406489/effect-of-epigallo-catechin-3-gallate-on-lipid-metabolism-related-gene-expression-and-yolk-fatty-acid-profiles-of-laying-hens-exposed-to-vanadium
#8
L Y Qiu, J P Wang, C Pietro, K Y Zhang, X M Ding, S P Bai, Q F Zeng, H W Peng
As the understanding of the pathways involved in such effect are quite limited, we investigated the gene pathways that modulate lipid metabolism in layers and the fatty acid profiles of the yolk of layers that were challenged with dietary vanadium (V) and supplemented with epigallo-catechin-3-gallate (EGCG). For this purpose, a total of 120 hens were divided into four groups which were fed the following experimental diets for a period of 8 weeks: control (basal diet), V10 (control + 10 mg/kg V), EGCG130 (V10 + 130 mg/kg EGCG), and EGCG217 (V10 + 217 mg/kg EGCG)...
November 7, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30392020/role-of-pigment-epithelium-derived-factor-in-arsenic-induced-vascular-endothelial-dysfunction-in-a-rat-model
#9
Xiangnan Guo, Xiaoyan Fu, Xiaona Liu, Jingqiu Wang, Zhongzhe Li, Lin Gao, Yuanyuan Li, Wei Zhang
Water-borne arsenicosis is caused by the consumption of excess levels of inorganic arsenic from drinking water and is a worldwide public health issue. Arsenic exposure has recently attracted extensive attention due to its damage to the cardiovascular system. Vascular endothelial dysfunction (VED) is recognized as an important cause of cardiovascular diseases. Pigment epithelium-derived factor (PEDF) plays an important role in maintaining endothelial function, and our previous studies suggested that PEDF may have role in arsenic-induced damage...
November 3, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30392019/effects-of-selenium-yeast-in-combination-with-boron-on-muscle-growth-and-muscle-quality-in-broilers
#10
Erhui Jin, Qianqian Hu, Man Ren, Guangming Jin, Lin Liang, Shenghe Li
The effect of selenium yeast in combination with boron on both growth and quality of the muscle in broilers was investigated. A total of 600 one-day-old Arbor Acres broilers were randomly divided into five groups with 120 broilers per group (6 replicates per group). The control group received a basal diet, and experimental groups I-IV received the same basal diet supplemented with 0.3 mg/kg selenium yeast and different doses of boron (0, 5, 10, and 15 mg/kg, respectively). The experiment was conducted for 42 days...
November 3, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30392018/the-protection-of-selenium-against-cadmium-induced-mitochondrial-damage-via-the-cytochrome-p450-in-the-livers-of-chicken
#11
Yimei Cong, Qianru Chi, Xiaohua Teng, Shu Li
Cadmium (Cd) is a heavy metal in natural environment and has extreme toxicity. Selenium (Se) has protective effect against heavy metal-induced injury or oxidative stress. Cytochrome P450 (CYP450) enzymes are a family of hemoproteins primarily responsible for detoxification functions. In order to investigate whether CYP450 is related to the damage of livers caused by Cd exposure, we chose forty-eight 28-day-old healthy Hailan cocks for four groups: control group, Se group, Cd group, and Se + Cd group. After 90-day treatment, euthanized for experiment...
November 3, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30382478/dietary-zinc-amino-acid-complex-does-not-affect-markers-of-mammary-epithelial-integrity-or-heat-stability-of-milk-in-mid-lactating-cows
#12
James E Shaffer, Laman K Mamedova, Jeff M DeFrain, Karthik Pandalaneni, Jayendra K Amamcharla, Caio S Takiya, Barry J Bradford
Supplying dietary zinc in excess of traditional requirements has clear impacts on the gut epithelium, but little research has explored whether similar impacts on the mammary epithelium may occur. Our objective was to determine the effects of supplemental Zn sources, in excess of minimal requirements, on markers of mammary epithelial integrity in blood and in milk as well as the heat stability of milk in mid-lactation cows. Twelve multiparous Holstein cows (132 ± 21 days in milk and 51 ± 3 kg/day milk) were blocked according to milk yield and enrolled in a replicated 3 × 3 Latin square experiment...
October 31, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30368653/is-there-any-relevance-between-serum-heavy-metal-concentration-and-bbb-leakage-in-multiple-sclerosis-patients
#13
Babak Paknejad, Hamid Shirkhanloo, Mehdi Aliomrani
Sharp increase in multiple sclerosis (MS) incidence rate has been observed in Iranian people. In addition, it has been suggested that increased S100B level may be useful as an indicative factor of blood-brain barrier disruption. The propose of this study was to measuring blood arsenic, lead, and cadmium concentration and serum S100B concentration in a group of healthy and multiple sclerosis patients in Tehran as the most polluted city in Iran. All subjects were interviewed regarding age, medical history, possible chemical exposure, acute or chronic diseases, smoking, and dietary habits...
October 27, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30357758/the-variable-regulatory-effect-of-arsenic-on-nrf2-signaling-pathway-in-mouse-a-systematic-review-and-meta-analysis
#14
Cheng Wang, Qiang Niu, Rulin Ma, Guanling Song, Yunhua Hu, Shangzhi Xu, Yu Li, Haixia Wang, Shugang Li, Yusong Ding
Arsenic is known to cause oxidative damage. Nuclear factor E2-relate factor-2 (Nrf2) can resist this toxicity. Scholars demonstrated that Nrf2 pathway was activated by arsenic. In contrast, other articles established arsenic-induced inhibition of Nrf2 pathway. To resolve the contradiction and elucidate the mechanism of Nrf2 induced by arsenic, 39 publications involving mouse models were identified through exhaustive database retrieval and were analyzed. The pooled results suggested that arsenic obviously elevated transcription and translation levels of Nrf2 and its downstream genes, NAD(P)H dehydrogenase 1 (NQO1), heme oxygenase-1 (HO-1), glutamate-cysteine ligase catalytic subunit (GCLC), and GST-glutathione-S-transferase1/2 (GSTO1/2)...
October 25, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30357757/investigating-the-bioaccessibility-and-bioavailability-of-cadmium-in-a-cooked-rice-food-matrix-by-using-an-11-day-rapid-caco-2-ht-29-co-culture-cell-model-combined-with-an-in-vitro-digestion-model
#15
Qian Lv, Qiang He, Yue Wu, Xi Chen, Yali Ning, Yan Chen
Investigating the bioaccessibility and bioavailability of Cd based on real contaminated cooked rice matrixes helps establish an accurate risk assessment method and effectively reduce the digestion and absorption of Cd. An 11-day in vitro rapid Caco-2/HT-29 co-culture cell model was used to establish and evaluate the simulation of the absorption and transport of Cd in the small intestine with a 70:30 Caco-2/HT-29 co-culture ratio and 1.0 mmol L-1 butyric acid as a differentiation inducer. The bioaccessibility and bioavailability of Cd in cooked rice were studied using the cell model combined with an in vitro digestion model...
October 24, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30357569/taurine-treatment-provides-neuroprotection-in-a-mouse-model-of-manganism
#16
Mohammad Mehdi Ommati, Reza Heidari, Vahid Ghanbarinejad, Narges Abdoli, Hossein Niknahad
Manganese (Mn) is a trace element involved in many physiological processes. However, excessive Mn exposure leads to neurological complications. Although no precise mechanism(s) has been found for Mn-induced neurotoxicity, oxidative stress and mitochondrial injury seem to play a relevant role in this complication. On the other hand, there is no protective strategy against Mn neurotoxicity so far. Taurine is an amino acid with significant neuroprotective properties. The current study was designed to evaluate the effect of taurine supplementation and its potential mechanism(s) of action in a mouse model of manganism...
October 24, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30350272/vanadium-in-biological-action-chemical-pharmacological-aspects-and-metabolic-implications-in-diabetes-mellitus
#17
Samuel Treviño, Alfonso Díaz, Eduardo Sánchez-Lara, Brenda L Sanchez-Gaytan, Jose Manuel Perez-Aguilar, Enrique González-Vergara
Vanadium compounds have been primarily investigated as potential therapeutic agents for the treatment of various major health issues, including cancer, atherosclerosis, and diabetes. The translation of vanadium-based compounds into clinical trials and ultimately into disease treatments remains hampered by the absence of a basic pharmacological and metabolic comprehension of such compounds. In this review, we examine the development of vanadium-containing compounds in biological systems regarding the role of the physiological environment, dosage, intracellular interactions, metabolic transformations, modulation of signaling pathways, toxicology, and transport and tissue distribution as well as therapeutic implications...
October 22, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30343482/effects-of-dietary-zinc-on-carcass-traits-meat-quality-antioxidant-status-and-tissue-zinc-accumulation-of-pekin-ducks
#18
Min Wen, Bing Wu, Hua Zhao, Guangmang Liu, Xiaoling Chen, Gang Tian, Jingyi Cai, Gang Jia
This study investigated the effects of dietary zinc on carcass traits, meat quality, antioxidant capacity, and tissue zinc accumulation of Pekin ducks. A total of 768 1-day-old Pekin ducks were randomly allocated to six dietary treatments and penned in groups of 16 with 8 pens per treatment. Ducks were fed a basal corn-soybean meal diet supplemented with graded levels of zinc sulfate (0, 15, 30, 60, 120, 240 mg zinc/kg) for 35 days. The slaughter weight, carcass weight, eviscerated weight, and breast and leg muscle weight of Pekin ducks were increased with increasing dietary zinc levels (P < 0...
October 20, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30343481/simultaneous-functionalization-and-reduction-of-magnetic-graphene-oxide-by-l-histidine-and-its-application-for-magnetic-separation-preconcentration-of-antioxidant-trace-elements
#19
Mojtaba Amiri, Ali Mohammad Haji Shabani, Shayessteh Dadfarnia, Sodeh Sadjadi
In the present study, for the first time, the magnetic graphene oxide was simultaneously functionalized and reduced with the aim of imidazole-based L-histidine amino acid (rGO/Fe3 O4 -histidine). The prepared nanocomposite was characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy, and vibrating sample magnetometer. The synthesized rGO/Fe3 O4 -histidine nanosheets were implied for solid phase extraction of ultra-trace amounts of Zn2+ , Cu2+ , and Mn2+ from biological samples prior to ICP-OES determination...
October 20, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/30343480/the-fructoborates-part-of-a-family-of-naturally-occurring-sugar-borate-complexes-biochemistry-physiology-and-impact-on-human-health-a-review
#20
John M Hunter, Boris V Nemzer, Nagendra Rangavajla, Andrei Biţă, Otilia Constantina Rogoveanu, Johny Neamţu, Ion Romulus Scorei, Ludovic Everard Bejenaru, Gabriela Rău, Cornelia Bejenaru, George Dan Mogoşanu
Sugar-borates (SBs) are mono- or di-sugar-borate esters (SBEs) comprised of one or two monosaccharide molecules linked to a boron (B) atom. SBEs occur naturally in commonly consumed herbs, vegetables, fruits, seeds, and nuts and, other than greatly varying levels of B found in local drinking water, are the primary natural dietary sources of B-containing molecules in humans. To date, the most studied SBE is calcium fructoborate (CaFB). CaFB represents an important example of how organic B-containing molecules are significantly distinct from their inorganic counterparts...
October 20, 2018: Biological Trace Element Research
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