keyword
MENU ▼
Read by QxMD icon Read
search

cadmium

keyword
https://www.readbyqxmd.com/read/28942329/investigation-of-quad-energy-high-rate-photon-counting-for-x-ray-computed-tomography-using-a-cadmium-telluride-detector
#1
Hiroshi Matsukiyo, Eiichi Sato, Yasuyuki Oda, Satoshi Yamaguchi, Yuichi Sato, Osahiko Hagiwara, Toshiyuki Enomoto, Manabu Watanabe, Shinya Kusachi
To obtain four kinds of tomograms at four different X-ray energy ranges simultaneously, we have constructed a quad-energy (QE) X-ray photon counter with a cadmium telluride (CdTe) detector and four sets of comparators and microcomputers (MCs). X-ray photons are detected using the CdTe detector, and the event pulses produced using amplifiers are sent to four comparators simultaneously to regulate four threshold energies of 20, 33, 50 and 65keV. Using this counter, the energy ranges are 20-33, 33-50, 50-65 and 65-100keV; the maximum energy corresponds to the tube voltage...
September 10, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28942313/hormetic-effects-of-cd-on-alkaline-phosphatase-in-soils-across-particle-size-fractions-in-a-typical-coastal-wetland
#2
Diwu Fan, Jiangang Han, Yuan Chen, Yongli Zhu, Pingping Li
Hormetic responses in soil ecosystem are increasingly reported recently. Soil enzymes are involved in almost all biochemical reactions, but insufficient investigations were conducted to define its hormetic responses. The objective of this study is to investigate the hormetic responses across soil particle-size fractions with cadmium (Cd) as a stressor and alkaline phosphatase (ALP) as a potential endpoint. Soils were treated by adding CdCl2·2.5H2O solution with 0, 0.003, 0.03, 0.3, 3.0 and 30.0mg·kg(-1) of Cd, respectively...
September 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28942189/anionically-reinforced-hydrogel-network-entrapped-fungal-cells-for-retention-of-cadmium-in-the-contaminated-aquatic-media
#3
Sema Çelik, Sibel Tunali Akar, Musa Şölener, Tamer Akar
A novel biomass/polymer composite was fabricated by embedding Thamnidium elegans cells in acrylic network of p(3-Methoxyprophyl)acrylamide p(MPA) enriched with 2-Akrylamido-2-methyl-1-propane sulfonic acid (AMPS). Cd(II) retention potential of hydrogel (p(MPA-co-AMPS)) increased by 20.66% times after this enrichment. The gel matrix could be effectively entrapped the biomass and resulting sorbent applied to remove Cd(II) from water in batch and continuous modes. The main physico-chemical parameters are discussed in addition to characterization, regeneration and application studies of the suggested sorbent...
September 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28941716/blood-and-urine-cadmium-concentrations-and-walking-speed-in-middle-aged-and-older-u-s-adults
#4
Junghoon Kim, Esther Garcia-Esquinas, Ana Navas-Acien, Yoon-Hyeong Choi
Reduced physical performance is an important feature of aging, and walking speed is a valid measure of physical performance and mobility in older adults. Previous epidemiological studies suggest that cadmium exposure, even at low environmental levels, may contribute to vascular, musculoskeletal, and cognitive dysfunction, which may all be associated with reductions in physical performance. To this end, we investigated the associations of blood and urine cadmium concentrations with walking speed in middle-aged and older adults in the U...
September 20, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28940080/monitoring-and-assessment-of-heavy-metal-metalloid-concentration-by-inductively-coupled-plasma-mass-spectroscopy-icp-ms-method-in-gonyeli-lake-cyprus
#5
Fehmi Burak Alkas, Jehad Abdullah Shaban, Ayca Aktas Sukuroglu, Mehmet Ali Kurt, Dilek Battal, Sahan Saygi
The presence of heavy metals/metalloids in the ecosystem has been an increasing ecological and global public health concern due to their potential to cause adverse health effects. For this reason, the accumulation of some heavy metals such as Cr, Mn, Ni, Cu, As, Cd, Pb was assessed by way of ICP-MS in water, sediment and fish (Cyprinus carpio) sampled from Gonyeli Lake, North Cyprus. The results showed that these metals/metalloids are found widespread throughout the study area. In water, most concentrated element was manganese with 92...
September 22, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28939125/toxic-elements-and-associations-with-hematology-plasma-biochemistry-and-protein-electrophoresis-in-nesting-loggerhead-sea-turtles-caretta-caretta-from-casey-key-florida
#6
Justin R Perrault, Nicole I Stacy, Andreas F Lehner, Savannah K Poor, John P Buchweitz, Catherine J Walsh
Toxic elements (arsenic, cadmium, lead, mercury, selenium, thallium) are a group of contaminants that are known to elicit developmental, reproductive, general health, and immune system effects in reptiles, even at low concentrations. Reptiles, including marine turtles, are susceptible to accumulation of toxic elements due to their long life span, low metabolic rate, and highly efficient conversion of prey into biomass. The objectives of this study were to (1) document concentrations of arsenic, cadmium, lead, mercury, selenium, and thallium in whole blood and keratin from nesting loggerhead sea turtles (Caretta caretta) from Casey Key, Florida and document correlations thereof and (2) correlate whole blood toxic element concentrations to various hematological and plasma biochemistry analytes...
September 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28938999/cadmium-uptake-and-zinc-cadmium-antagonism-in-australian-tropical-rock-oysters-potential-solutions-for-oyster-aquaculture-enterprises
#7
Niels C Munksgaard, Shannon Burchert, Mirjam Kaestli, Samantha J Nowland, Wayne O'Connor, Karen S Gibb
Variable and occasionally high concentrations of cadmium in wild oysters at a remote location with the potential to develop aquaculture enterprises motivated research into the distribution and sources of metals in oysters, seawater, sediment, suspended solids and phytoplankton. Saccostrea mytiloides and Saccostrea mordax contained cadmium concentrations exceeding the food standard maximum level (ML) at three of four sites. At one site with high zinc levels in sediment, oyster cadmium levels were below the ML...
September 19, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28938216/efficient-removal-of-priority-hazardous-priority-and-emerging-pollutants-with-prunus-armeniaca-functionalized-biochar-from-aqueous-wastes-experimental-optimization-and-modeling
#8
Maja Turk Sekulić, Sabolč Pap, Zoran Stojanović, Nikola Bošković, Jelena Radonić, Tatjana Šolević Knudsen
This paper investigates the ability of the phosphoric acid functionalized Prunus armeniaca stones biochar (AsPhA) prepared by thermochemical activation to remove lead (Pb(2+)), cadmium (Cd(2+)), nickel (Ni(2+)), naproxen and chlorophenols from aqueous wastes. The engineered biochar was characterized using the Scanning Electron Microscopy, Energy-dispersive X-ray Spectroscopy, Fourier Transform Infrared Spectroscopy and Brunauer, Emmett and Teller technique. The batch studies were performed by varying the initial pH of the solution (2-9), adsorbent dosage (0...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938200/atmospheric-deposition-of-mercury-and-cadmium-impacts-on-topsoil-in-a-typical-coal-mine-city-lianyuan-china
#9
Jie Liang, Chunting Feng, Guangming Zeng, Minzhou Zhong, Xiang Gao, Xiaodong Li, Xinyue He, Xin Li, Yilong Fang, Dan Mo
Mercury (Hg) and cadmium (Cd) in the atmosphere from coal combustion emissions play an important role in soil pollution. Therefore, the purposes of this study were to quantitatively evaluate the atmospheric Hg and Cd deposition and to determine the influence of atmospheric deposition on Hg and Cd contents in surface soil in a typical coal mine city. Atmospheric deposition samples were collected from May 2015 to May 2016 at 17 sites located in industrial, agricultural and forest areas in the Lianyuan city. Atmospheric Hg and Cd deposition fluxes in the different land use types showed high variability...
September 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28938194/sulforaphane-mitigates-cadmium-induced-toxicity-pattern-in-human-peripheral-blood-lymphocytes-and-monocytes
#10
Nouf Abdulkareem Omer Alkharashi, Vaiyapuri Subbarayan Periasamy, Jegan Athinarayanan, Ali A Alshatwi
Cadmium (Cd) is a highly toxic and widely distributed heavy metal that induces various diseases in humans through environmental exposure. Therefore, alleviation of Cd-induced toxicity in living organisms is necessary. In this study, we investigated the protective role of sulforaphane on Cd-induced toxicity in human peripheral blood lymphocytes and monocytes. Sulforaphane did not show any major reduction in the viability of lymphocytes and monocytes. However, Cd treatment at a concentration of 50μM induced around 69% cell death...
August 31, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28937699/electron-transfer-dynamics-from-single-near-infrared-emitting-lead-sulfide-cadmium-sulfide-nanocrystals-to-titanium-dioxide
#11
Huidong Zang, Prahlad K Routh, Qingping Meng, Mircea Cotlet
In this study we report the first successful demonstration of electron transfer between single near infrared emitting PbS/CdS nanocrystals and an external acceptor, titanium dioxide (TiO2). We demonstrate distance-dependent electron transfer from single nanocrystals to TiO2 and explore the effect of this process on the photoluminescence dynamics of these nanocrystals. Isolated PbS/CdS QDs are found to exhibit blinking dynamics similar to other nanocrystals like CdSe/ZnS; however, their photoluminescence follows a quasi two-state pattern with heterogeneous photoluminescence lifetimes which may be the result of their emission originating from different energy states...
September 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28936924/expression-of-cross-tolerance-to-a-wide-range-of-conditions-in-a-human-lung-cancer-cell-line-after-adaptation-to-nitric-oxide
#12
Zane Deliu, Timothy Tamas, Juel Chowdhury, Madeeha Aqil, Maaly Bassiony, James A Radosevich
Previously, we have shown that A549, a human lung adenocarcinoma, can be adapted to nitric oxide (NO(●)). NO(●) is a nitrogen-based free radical that is synthesized by a family of enzymes known as nitric oxide synthases. NO(●) has been shown to be overexpressed in patient populations of different cancers. In addition, it has been observed that patients who express high levels of nitric oxide synthases tend to have poorer clinical outcomes than those with low levels of expression. The original cell line A549 (parent) and the adapted A549-HNO (high nitric oxide) cell line serve as a useful model system to investigate the role of NO(●) in tumor progression and prognosis...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28936749/misfolding-and-aggregation-of-nascent-proteins-a-novel-mode-of-toxic-cadmium-action-in-vivo
#13
REVIEW
Markus J Tamás, Bruno Fauvet, Philipp Christen, Pierre Goloubinoff
Cadmium is a highly poisonous metal and a human carcinogen, but the molecular mechanisms underlying its cellular toxicity are not fully understood. Recent findings in yeast cells indicate that cadmium exerts its deleterious effects by inducing widespread misfolding and aggregation of nascent proteins. Here, we discuss this novel mode of toxic heavy metal action and propose a mechanism by which molecular chaperones may reduce the damaging effects of heavy metal ions on protein structures.
September 21, 2017: Current Genetics
https://www.readbyqxmd.com/read/28936224/role-of-crrlk1l-cell-wall-sensors-hercules1-and-2-theseus1-and-feronia-in-growth-adaptation-triggered-by-heavy-metals-and-trace-elements
#14
Julia Richter, Marie Ploderer, Gaëlle Mongelard, Laurent Gutierrez, Marie-Theres Hauser
Cell walls are not only a protective barrier surrounding protoplasts but serve as signaling platform between the extracellular environment and the intracellular physiology. Ions of heavy metals and trace elements, summarized to metal ions, bind to cell wall components, trigger their modification and provoke growth responses. To examine if metal ions trigger cell wall sensing receptor like kinases (RLKs) of the Catharanthus roseus RLK1-like (CrRLK1L) family we employed a molecular genetic approach. Quantitative transcription analyses show that HERCULES1 (HERK1), THESEUS1 (THE1), and FERONIA (FER) were differently regulated by cadmium (Cd), nickel (Ni), and lead (Pb)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28936223/oomycete-communities-associated-with-reed-die-back-syndrome
#15
Martina Cerri, Rumakanta Sapkota, Andrea Coppi, Valentina Ferri, Bruno Foggi, Daniela Gigante, Lorenzo Lastrucci, Roberta Selvaggi, Roberto Venanzoni, Mogens Nicolaisen, Francesco Ferranti, Lara Reale
Phragmites australis (Cav.) Trin. ex Steud. die-back is a widely-studied phenomenon that was first discovered in northern Europe and that, until recently, was almost unknown in the Mediterranean basin. It has been described as a complex syndrome affecting reed populations leading to their retreat and decline, with significant impacts on valuable ecosystem services. Among the factors that cause the decline, soil-living microorganisms can be crucial. The aims of this study were to analyze the diversity of oomycetes communities associated with reed stands, and to understand whether they could play a key role in the decline...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28934999/vortex-assisted-modified-dispersive-liquid-liquid-microextraction-of-trace-levels-of-cadmium-in-surface-water-and-groundwater-samples-of-tharparkar-pakistan-optimized-by-multivariate-technique
#16
Sooraj Nizamani, Tasneem G Kazi, Hassan I Afridi, Sehrish Talpur, Ayaz Lashari, Anjum Lashari, Jamshed Ali
A simple vortex-assisted modified dispersive liquid–liquid microextraction procedure is proposed forthe enrichment of cadmium (Cd(+2)) in surface (stored rainwater) and groundwater of the Tharparkar district in Pakistan, before analysis by flame atomic absorption spectrometry. Ammonium pyrrolidinedithiocarbamate was used as a ligand to make a hydrophobic complex of Cd(+2), which was extracted in an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate), and the nonionic surfactant Triton X-114 was applied as a dispersing medium...
September 21, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28934709/toxicity-of-ammonia-cadmium-and-nitrobenzene-to-four-local-fishes-in-the-liao-river-china-and-the-derivation-of-site-specific-water-quality-criteria
#17
Zhihong Liu, Xiaojun Li, Peidong Tai, Lizong Sun, Honghong Yuan, Xiaonan Yang
Water quality criteria (WQC) are considered to be an effective management tool for protecting aquatic environments. To derive site-specific WQC for an area, local data based on local species are essential to improve the applicability of WQC derived. Due to the paucity of local fish data available for the development of site-specific WQC for the Liao River, China, four local and widespread fishes (Pseudorasbora parva, Abbottina liaoningensis, Ctenogobius giurinus, and Misgurnus anguillicaudatus) were chosen to test their sensitivities to ammonia, cadmium and nitrobenzene...
September 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28934692/identification-of-key-genes-and-pathways-and-therapeutic-agents-in-cadmium-treated-liver-cells-a-bioinformatics-study
#18
Liang Zhang, Yi Huang, Zhen Yu, Mengmeng Shao, Yunbo Luo, Yi Zhu
Evidence indicates that Cadmium (Cd) can accumulate in liver, which results in acute or chronic cell damage with unclear complex mechanisms. Thus, we aimed to explore the possible molecules and pathways by using bioinformatics methods Consequently, two datasets (GSE8865 and GSE31286) were retrieved and the differentially expressed genes (DEGs) were screened out. The intersection of the DEGs included seven up-regulated and forty-three down-regulated genes, which were mainly enriched in biological cell proliferation items, and were enriched in several metabolism-related pathways...
September 14, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28933827/three-cadmium-coordination-polymers-with-carboxylate-and-pyridine-mixed-ligands-luminescent-sensors-for-fe-iii-and-cr-vi-ions-in-an-aqueous-medium
#19
Yanna Lin, Xiaoping Zhang, Wenjie Chen, Wei Shi, Peng Cheng
Three new water-stable luminescent Cd(II) coordination polymers (CPs), {[Cd2(bptc)(2,2'-bipy)2(H2O)2]}n (1), {[Cd2(bptc)(phen)2]·4H2O}n (2), and {[Cd2(bptc)(4,4'-bipy)(H2O)2]·4H2O}n (3), were solvothermally synthesized with mixed ligands of 3,3',5,5'-biphenyltetracarboxylic acid (H4bptc) and N-donor ligands (2,2'-bipy = 2,2'-bipyridine; phen = 1,10-phenanthroline; 4,4'-bipy = 4,4'-bipyridine). The CPs 1-3 show structural diversity from a 1D ladder chain to a 2D layer to a 3D porous framework, tuned by different ancillary ligands...
September 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28933771/sulfur-protects-pakchoi-brassica-chinensis-l-seedlings-against-cadmium-stress-by-regulating-ascorbate-glutathione-metabolism
#20
Lili Lou, Jingquan Kang, Hongxi Pang, Qiuyu Li, Xiaoping Du, Wei Wu, Junxiu Chen, Jinyin Lv
Cadmium (Cd) pollution in food chains pose a potential health risk for humans. Sulfur (S) is a significant macronutrient that plays a significant role in the regulation of plant responses to diverse biotic and abiotic stresses. However, no information is currently available about the impact of S application on ascorbate-glutathione metabolism (ASA-GSH cycle) of Pakchoi plants under Cd stress. The two previously identified genotypes, namely, Aikangqing (a Cd-tolerant cultivar) and Qibaoqing (a Cd-sensitive cultivar), were utilized to investigate the role of S to mitigate Cd toxicity in Pakchoi plants under different Cd regimes...
July 26, 2017: International Journal of Molecular Sciences
keyword
keyword
47510
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"