Heavy Metals

<< Return to all publications

Sat, 05/29/2021 - 06:17
Author(s): Laëtitia Frat, Thomas Chertemps, Élise Pesce, Françoise Bozzolan, Matthieu Dacher, Rosario Planelló, Óscar Herrero, Lola Llorente, Didier Moers, David Siaussat Heavy metals, like many other chemical elements, are naturally present in the environment; however, the concentrations of these metals in various environmental matrices have increased through their intensive use in many human...
Fri, 05/28/2021 - 06:13
Author(s): Leilei Yu, Yaqi Yu, Yue Xiao, Fengwei Tian, Arjan Narbad, Qixiao Zhai, Wei Chen Recently, a bidirectional relationship between dietary lead (Pb) exposure and gut changes has been identified. Pb causes gut dysbacteriosis and destroys gut physiological homeostasis, causing a series of oxidative stress, immune-inflammatory reactions and increased permeability of the intestinal barrier. Pb...
Fri, 05/28/2021 - 06:09
Author(s): Yangyi Zhang, Shanqi Guo, Shuo Wang, Xiaojian Li, Dingkun Hou, Hongzheng Li, Lili Wang, Yong Xu, Baojie Ma, Haitao Wang, Xingkang Jiang Previous studies suggest that cadmium (Cd) is one of the causative factors of prostate cancer (PCa), but the effect of chronic Cd exposure on PCa progression remains unclear. Besides, whether long noncoding RNAs (lncRNAs) are involved in the regulation...
Wed, 05/26/2021 - 22:12
Water Resources Research, Accepted Article. The use of hydro-meteorological forecasts in water resources management holds great promise as a soft pathway to improve system performance. Methods for generating synthetic forecasts of hydro-meteorological variables are crucial for robust validation of forecast use, as numerical weather prediction hindcasts are only available for a relatively short...
Wed, 05/26/2021 - 22:10
Journal of Food Biochemistry, EarlyView. Lead nitrate (LN) and cadmium chloride (CdCl2), regarded as environmental contaminants, are toxic heavy metals. Sesamol is a dietary phytochemical found in sesame oil. We aimed to analyze the hepatotoxic and nephrotoxic effects of LN and CdCl2 and to evaluate the possible protective effect of sesamol. LN (90 mg/kg bw per day), CdCl2 (3 mg/kg bw per day),...
Wed, 05/26/2021 - 06:10
Author(s): Hong Zhang, Kate Heal, Xiangdong Zhu, Mulualem Tigabu, Yanan Xue, Chuifan Zhou Cadmium (Cd) is one of the most toxic environmental pollutants affecting the growth and reproduction of various plants. Analysis of the biological adaptation and tolerance mechanisms of the hyperaccumulator Erigeron annuus to Cd stress may help identify new plant species for phytoremediation and in...
Wed, 05/26/2021 - 06:10
Author(s): Lijun Li, Bao Jiang, Yanan Wan, Jumei Li, Yibing Ma It is significant to derive an appropriate cadmium (Cd) threshold for the rice to ensure that the Cd concentration of rice grains meets the food safety standards. In the present study, soil thresholds for Cd were derived using the method of species sensitivity distribution based on aging time, cultivars, and soil properties. Dataset...
Mon, 05/24/2021 - 04:04
Cadmium (Cd) accumulation in agricultural soils is an increasingly serious problem, as plants absorb Cd, which inhibits their growth and development. Nonetheless, the molecular mechanisms underlying Cd detoxification and accumulation in wheat (Triticum aestivum L.) are unclear. Here, we isolated the U-box E3 ligase TaPUB1 from wheat and reported the functional characterization of TaPUB1 in Cd...
Mon, 05/24/2021 - 02:02
Soils containing high concentrations of metals were treated using a soil washing process. The hypothesis was that metals could be concentrated in a single or small number of fine fractions which could be removed and disposed of to treat the contaminated soil. Lead and zinc were shown to be distributed over the > 4000, 2000–4000, 600–2000, 180–600, 38–180, 38–23, and < 9 µm soil size...
Sun, 05/23/2021 - 02:03
Juvenile common carp were treated with Cd2+ at a sublethal concentration for Cyprinidae (6.4 mg/L). The expression of N-methyl-D-aspartate receptor subunit genes (NR2A, NR2B) and ATP-binding cassette subfamily C member 1 gene (ABCC1) was compared between treated and untreated fish. In addition, cadmium accumulation in the fish tissues was assessed. NR2A was 18.9-fold upregulated by Cd2+ in the...
Sun, 05/23/2021 - 02:02
Activities associated with mining operations including smelting, ore handling, and mine tailings management have been identified as sources of dust and aerosol that may contain metal and metalloid contaminants, such as lead (Pb) and arsenic (As). Previous studies on contaminant transport have concentrated on the potential impact of these particulate emissions in outdoor environments. The purposes...
Fri, 05/21/2021 - 16:00
The European epidemic monophasic variant of Salmonella enterica serovar Typhimurium (S. 1,4,[5],12:i:-) characterized by the multi locus sequence type ST34 and the antimicrobial resistance ASSuT profile has become one of the most common serovars in Europe (EU) and the United States (US). In this study, we reconstructed the time-scaled phylogeny and evolution of this Salmonella in Europe. The...
Fri, 05/21/2021 - 02:03
Heavy metals are continuously released into the oceans from both natural and anthropogenic sources. They are serious threats to both ecosystem and human health because of their toxicity, persistence, bioaccumulation, and biomagnification. We present metal concentrations in the economically important bluefish from Iskenderun Bay, providing valuable information on Northeastern Mediterranean aquatic...
Thu, 05/20/2021 - 16:00
Sweet sorghum has potential for phytoextraction of cadmium (Cd) owning to its large biomass and relatively high Cd tolerance. Nitrogen affects both growth and Cd concentrations in plants. However, different forms of nitrogen effects on Cd accumulation in sweet sorghum to improve efficiency of Cd phytoremediation is still elusive. In this study, nitrate substantially promoted both dry weight and...
Thu, 05/20/2021 - 06:20
Author(s): Guofeng Xu, Shuang Liu, Mingquan Huang, Xue Jiang, Meng Yang Cadmium (Cd) is an important industrial and environmental pollutant, which is closely correlated with female infertility. Although Cd-induced developmental disorders of human ovarian follicles have been widely reported, the underlying mechanisms remain not fully elucidated. In this study, we explored the mechanism underlying...
Wed, 05/19/2021 - 10:02
Leishmaniasis and Chagas are among the most significant neglected tropical diseases. Due to several drawbacks with the current chemotherapy, developing new antikinetoplastid drugs has become an urgent issue. In the present work, a bioassay-guided investigation of the root bark of Maytenus chiapensis on Leishmania amazonensis and Trypanosoma cruzi led to the identification of two D:A-friedo-nor-...
Wed, 05/19/2021 - 10:02
The intestinal protozoan Cryptosporidium is a leading cause of diarrheal disease and mortality in young children. There is currently no fully effective treatment for cryptosporidiosis, which has stimulated interest in anticryptosporidial development over the last ~10 years, with numerous lead compounds identified, including several tRNA synthetase inhibitors. Here, we report the results of a...
Wed, 05/19/2021 - 08:03
by Eui-Jin Kim, Oh Hoon Kwon, Shin Hyoung Park, Dong-Kyu Kim, Koohong Chung Detecting high-collision-concentration locations based solely on collision frequency may produce different results compared to those considering the severities of the collisions. In particular, it can lead government agencies focusing sites with a high collision frequency while neglecting those with a lower collision...
Wed, 05/19/2021 - 06:12
Author(s): Jan Sácký, Jiří Černý, Jiří Šantrůček, Jan Borovička, Tereza Leonhardt, Pavel Kotrba Cystoderma carcharias is one of the few macrofungal species that can hyperaccumulate Cd. As we have previously documented in C. carcharias collected from a smelter-polluted area, it stores 40% of Cd and nearly 90% of Cu in sporocarps in complex(es) of identical size. In this paper we examined whether...
Wed, 05/19/2021 - 06:09
Author(s): Yulin Xiang, Furen Kang, Qiang Li Particulate organic matter (POM) is an effective adsorbent for decreasing the contaminant of cadmium, but little is known about the relevant mechanisms under the effect of plant. In this work, POM were used to study the removal of Cd2+ in the initial concentration range of 0–4.46 mmol L-1 at pH 5.5, and the effect of Artemisia ordosica roots and pH on...
Wed, 05/19/2021 - 04:07
Exploring novel p-hydroxyphenylpyruvate dioxygenase (EC 1.13.11.27, HPPD) inhibitors has become one of the most promising research directions in herbicide innovation. On the basis of our tremendous interest in exploiting more powerful HPPD inhibitors, we designed a family of benzyl-containing triketone-aminopyridines via a structure-based drug design (SBDD) strategy and then synthesized them....
Wed, 05/19/2021 - 02:03
High concentrations of heavy metals in mine soil disturb the interactions between legumes and microorganisms leading to select strains adapted to these specific conditions. In this work, we analyzed the diversity of fifty strains isolated from Trifolium sp. nodules growing on Pb–Zn mine soil, in the Northeastern of Algeria and highlighted their potential symbiotic traits. The phylogeny of the 16S...
Wed, 05/19/2021 - 02:03
Increasing environmental pollutants such as heavy metals have become one of the most severe health dangers because of rapid industrialization. Exposure to lead and nickel heavy toxic metals can lead to hazardous diseases affecting most of the organs in humans. Bioremediation is a process that uses the ability of microorganisms or plants to detoxify environmental contaminants at lower costs than...
Tue, 05/18/2021 - 12:00
Background Our goal was to identify genetic risk factors for cutaneous leishmaniasis (CL) caused by Leishmania braziliensis. Methods Genotyping 2066 CL cases and 2046 controls using Illumina HumanCoreExomeBeadChips provided data for 4 498 586 imputed single-nucleotide variants (SNVs). A genome-wide association study (GWAS) using linear mixed models took account of genetic diversity/ethnicity/...
Tue, 05/18/2021 - 02:03
Some effects of biochar on soil properties (such as pore water DOC) are not very clear. The changes of soil properties [cation exchange capacity (CEC)], pore water properties [pH, dissolved organic carbon (DOC), and Cd concentration (CPW-Cd)], Cd concentration measured by diffusive gradients in thin films (CDGT-Cd), and available Cd content (Cd in weak acid extractable state and reducible state,...
Tue, 05/18/2021 - 02:02
Abstract Background and aims In China and several other rice growing countries, lime application is a common practice to alleviate soil acidification in rice paddies. Liming may also reduce the concentration of the common toxin Cadmium (Cd) in rice plants. We evaluated to what extent lime application affects rice yield and grain Cd concentration. Methods We conducted a meta-analysis to...
Mon, 05/17/2021 - 06:12
Author(s): Miray Öner, Süleyman Bodur, Cansu Demir, Elif Yazıcı, Sezin Erarpat, Sezgin Bakırdere In this study, a new and efficient sample pretreatment method called as dispersive solid phase extraction (DSPE) was proposed for the extraction and preconcentration of cadmium from edible oil samples and combined with inductively coupled plasma-optical emission spectrometry (ICP OES) for analyte...
Sun, 05/16/2021 - 06:08
Author(s): Shujie Wang, Qiao Li, Yanan Gao, Zhenlei Zhou, Zhen Li Elevating levels of environmental lead (Pb) results in serious hazards to health of animals and human beings. In this study, daily diet with three different levels of Pb (1, 10, and 100 mg/kg) were fed to ISA Brown layers. It showed that the kidney and liver have the relatively high Pb concentration (2.34 and 0.51 ppm) after...
Sat, 05/15/2021 - 08:05
by Sameer Al-Maisary, Gabriele Romano, Matthias Karck, Raffaele De Simone, Jamila Kremer Background The implantation of cardiac implantable electronic devices (CIED) has increased in the last decades with improvement in the quality of life of patients with cardiac rhythm disorders. The presence of bilateral subclavian, innominate or superior vena cava obstruction is a major limitation to device...
Sat, 05/15/2021 - 06:19
Author(s): Sib Sankar Giri, Min Jung Kim, Sang Guen Kim, Sang Wha Kim, Jeong Woo Kang, Jun Kwon, Sung Bin Lee, Won Joon Jung, Venkatachalam Sukumaran, Se Chang Park Curcumin exhibited numerous key activities including antioxidant, anti-inflammatory, and immunostimulatory effects in fish. This study evaluated the protective effects of curcumin (CUR) against lead (Pb)-induced toxicities in fish....
Fri, 05/14/2021 - 02:05
Salinity is a significant constraint for plant survival and productivity. Therefore, an immediate solution to this problem is sought to meet the human population's food demands. Recently, Menadione sodium bisulphite (MSB) has emerged as a significant regulator of plant defense response under abiotic stress. Studies on MSB are scarce, and a few reports on salinity (Arabidopsis and okra) and...
Thu, 05/13/2021 - 00:00
There are two main strategies for antibiotic discovery: target-based and phenotypic screening. The latter has been much more successful in delivering first-in-class antibiotics, despite the major bottleneck of delayed Mechanism-of-Action (MOA) identification. Although finding new antimicrobial compounds is a very challenging task, identifying their MOA has proven equally challenging. MOA...
Wed, 05/12/2021 - 22:08
Journal of Applied Toxicology, EarlyView. Cadmium (Cd) is a toxic heavy metal widely found in the environment. Cd is also a potential neurotoxicant, and its exposure is associated with impairment of cognitive function. However, the underlying mechanisms by which Cd induces neurotoxicity are unclear. In this study, we investigated the in vitro effect of Cd on primary murine neural stem/progenitor...
Wed, 05/12/2021 - 06:09
Author(s): Jiaqiao Zhu, Zhutao Huang, Fan Yang, Min Zhu, Jiangqin Cao, Jiali Chen, Yan Lin, Shuai Guo, Junwei Li, Zongping Liu Cadmium is an environmental pollutant that has extensive deleterious effects on the reproductive system. However, the mechanisms underlying the effects of cadmium on preimplantation embryos are unclear. Here, we used a mouse model to investigate the effects of maternal...
Wed, 05/12/2021 - 02:03
Heavy metal pollution is a great hazard to the environment that enters the ecosystem through different natural and anthropogenic sources. A study was performed to evaluate concentrations of Cd and Pb in selected plants, Ricinus communis and Parthenium hysterophorus, and soils from different functional sites in Sialkot. Maximum fresh and dry weights of R. communis were recorded from control and...
Mon, 05/10/2021 - 06:08
Author(s): Yujie Wang, Xinyu Zheng, Xiaosan He, Qixin Lü, Xin Qian, Qingtie Xiao, Ruiyu Lin Microbial remediation is a promising technique to reduce Cd accumulation in rice (Oryza sativa). In present study, a set of pot experiments were conducted to evaluate the effects of Cd-tolerate Pseudomonas TCd-1 inoculation on rice Cd uptake, soil enzyme activities and Cd bioavailability in the rhizosphere...
Sun, 05/09/2021 - 02:02
Heavy metals exposure has been linked to severe health problems. In Mexico, the Monterrey metropolitan area (MMA) is considered one of the most polluted industrial regions. Because birds have been used successfully as environmental biomonitors, the levels of lead, cadmium, and arsenic in feathers of Great-tailed grackles (Quiscalus mexicanus) from two sites within and one site outside the MMA...
Sat, 05/08/2021 - 02:03
The bioaccumulation of trace elements (TEs) in crops consumed by humans can reduce food production as a consequence of photosynthetic damage in plants and cause several diseases in humans. Liming is a soil management strategy designed to alleviate soil acidity and mitigating these problems by reducing the TE bioavailability. In this study, we evaluated the effect of liming on photosynthesis,...
Fri, 05/07/2021 - 06:09
Author(s): Javier Ávila-Román, Jorge R. Soliz-Rueda, Francisca Isabel Bravo, Gerard Aragonès, Manuel Suárez, Anna Arola-Arnal, Miquel Mulero, Maria-Josepa Salvadó, Lluís Arola, Cristina Torres-Fuentes, Begoña Muguerza Background Phenolic compounds are one of the most heterogeneous group of plant secondary metabolites with over 50,000 diverse molecules identified so far. Despite the low...
Fri, 05/07/2021 - 04:02
Edible insects are a novel food in most countries; their popularity is growing because of their high protein/low fat content, ease of cultivation, and small environmental impact. To our knowledge, this is the first report that addresses both microbiological and chemical hazards in edible insects. Samples were collected from retail stores or purchase through e-commerce. A total of 51 samples of...
Fri, 05/07/2021 - 02:03
Abstract Main conclusion Transgenic Arabidopsis thaliana and Populus alba plants overexpressing the zinc transporter ScZRC1 in shoots exhibit Zn tolerance. Increased Zn concentrations were observed in shoots of P. alba, a species suitable for phytoremediation. Abstract Genetic engineering of plants for phytoremediation is worth to consider if genes leading to heavy metal accumulation and...
Fri, 05/07/2021 - 02:02
Fungi are eukaryotic organisms that have the ability to synthesize an enormous number of metabolites with a vast diversity of chemical structures and bioactivities. Chaetomiaceae species are a wealthy source of enzymes with diverse biotechnological and industrial applications such as PMO (polysaccharide monooxygenase), L-methioninase, β-1,3-glucanase, laccase, dextranase, lipolytic, pectinolytic...
Thu, 05/06/2021 - 14:05
Animal bioassays have been developed to estimate oral relative bioavailability (RBA) of metals in soil, dust, or food for accurate health risk assessment. However, the comparability in RBA estimates from different labs remains largely unclear. Using 12 soil and soil-like standard reference materials (SRMs), this study investigated variability in lead (Pb) and arsenic (As) RBA estimates employing...
Thu, 05/06/2021 - 02:02
The potential of two aquatic plants, e.g., Typha angustifolia and Acorus calamus, and a terrestrial plant, e.g., Pandanus amaryllifolius, was evaluated in hydroponic experiments for rhizofiltration of cadmium (Cd) and zinc (Zn). Of the three species, T. angustifolia experienced a 100% survival rate and showed no symptoms of toxicity, with substantial values of dry biomass production (11.5–20.8 g...
Wed, 05/05/2021 - 02:03
Abstract Bioconversion using microorganisms and their enzymes is an important tool in many industrial fields. The discovery of useful new microbial enzymes contributes to the development of industries utilizing bioprocesses. Streptomyces sp. EAS-AB2608, isolated from a soil sample collected in Japan, can convert the tetrahydrobenzotriazole CPD-1 (a selective positive allosteric modulator of...
Wed, 05/05/2021 - 02:03
In this study, the occurrence of heavy metals including cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), and zinc (Zn) was investigated in indoor dust samples collected from 33 urban and rural areas in 11 provinces, China. The concentrations of the selected heavy metals were determined by an inductively coupled plasma mass spectrometry. The mean concentrations of Zn (166 mg kg−1), Pb (40.7 mg...
Tue, 05/04/2021 - 06:15
Author(s): Monashree Sarma Bora, Kali Prasad Sarma The present research is an appraisal of anatomical and ultrastructural alterations in aquatic fern, Ceratopteris pteridoides under cadmium (Cd) exposure. Plants were cultured hydroponically for 12 consecutive days in different Cd treatments: 10 µM L−1 (CDT1), 20 µM L−1 (CDT2), 40 µM L−1 (CDT3) and 60 µM L−1 (CDT4). Anatomical and ultrastructural...
Sun, 05/02/2021 - 06:08
Author(s): Hongliang Lu, Yingchao Hu, Chunquan Kang, Qinyuan Meng, Zhihua Lin Heavy metal pollution in natural water bodies generally interacting with other environmental stressors produces toxic effects on aquatic organisms. However, toxicological studies exploring interactive effects of these stressors are still limited. Here, tadpoles of the Zhenhai brown frog (Rana zhenhaiensis) were exposed...
Sat, 05/01/2021 - 02:03
Cadmium (Cd) is a toxic metal and an environmental pollutant that significantly reduces plant growth and productivity. Proper management can ameliorate dysfunction and improve the plant growth and productivity exposed to Cd. Therefore, the present study was conducted to explore the protective role of the fungicides tebuconazole (TEB) and trifloxystrobin (TRI) in helping wheat (Triticum aestivum L...
Fri, 04/30/2021 - 06:08
Author(s): Rafaela Amaral dos Reis, Sophie Hendrix, Miguel Pedro Mourato, Luísa Louro Martins, Jaco Vangronsveld, Ann Cuypers The commonly used Arabidopsis thaliana natural accessions Columbia (Col-0) and Wassilewskija (Ws) are known to differ in their metal sensitivity, with Col-0 being more sensitive to copper (Cu) and cadmium (Cd) than Ws. As both Cu and Cd are known to affect Cu homeostasis,...

Pages