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1.
J Hazard Mater ; 381: 120954, 2020 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-31437800

RESUMO

A nanocomposite of (ZrO2-Al2O3)/GO was successfully synthesized by a simple sonochemical method in this study. A special 3D network was formed in (ZrO2-Al2O3)/GO, which produced a large surface area and good distribution of metal oxide nanoparticles. The as-synthesized (ZrO2-Al2O3)/GO exhibits a maximum fluoride adsorption capacity of 62.2 mg/g, and an adsorption ability of 13.80 mg/g when the F- equilibrium concentration is 1 mg/L, both of which are higher than most previously reported defluoridation adsorbents, indicating that it is among the top adsorbents. Large amounts of drinking water contaminated by F- can be treated by (ZrO2-Al2O3)/GO to meet the WHO limit, indicating the high potential for practical application of the adsorbent. Based on the experimental analysis, the origin of the high defluoridation performance and the adsorption mechanism were discussed in detail. Due to the simple preparation, easy operation and high performance, the adsorbent and the related sonochemical method are considered to be significant for developing highly effective adsorbents.

2.
Food Chem ; 305: 125454, 2020 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-31505413

RESUMO

The effects of the (-)-Epigallocatechin gallate (EGCG)-gelatin biofilm treatment (EGT) on microbial composition and quality of tilapia fillets stored at low temperatures were evaluated. The changes in mechanical properties, microbial reproduction, as well as lipid and protein oxidation during fillets storage were determined. The results showed that EGT reduced the microbial count and the relative abundance of the fillets. And EGT delayed the rate of lipid oxidation and protein denaturation in fillets. Compared with the control group, EGT samples had lower K values (74% on 18 d) and biogenic amines (39 mg/kg for putrescine and 50 mg/kg for cadaverine on 21 d). According to sensory evaluation, the shelf life of tilapia fillets was extended by 6 d in the EGT group. Therefore, EGT improved the quality of cryopreserved tilapia fillets and could be considered as a potential method for fish fillet preservation.

3.
J Phys Condens Matter ; 32(1): 015601, 2020 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-31509821

RESUMO

We present a detailed magnetotransport study on HfB2, a possible topological nodal-line semimetal. HfB2 exhibits field-induced resistivity upturn and plateau behaviors at low temperature and high field, accompanying rather large magnetoresistance. The analysis of the field dependence of Hall and longitudinal resistivity shows that there are two kinds of carriers (electrons and holes) with almost same carrier concentrations and rather high mobilities in HfB2. Above field-induced phenomena can be well explained by using the two-band model with compensation condition. Even the carrier concentration is significantly high (∼1.8 [Formula: see text] 1021 cm-3) in HfB2, much larger than other known topological semimetals with discrete Dirac nodal points, the electron-type carriers still have relatively small effective masses. In contrast to ZrB2, the slightly increased effective mass in HfB2 manifests the effect of enhanced spin-orbit coupling due to the large atomic number of Hf.

4.
Biomed Pharmacother ; 121: 109645, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31739164

RESUMO

Parishins, important constituents of Gastrodia elata (G. elata), are known to exhibit a number of biological and pharmacological properties. However, their role and mechanisms of action in myocardial ischemia are unknown. The present study investigated the potential protective effects and mechanisms of parishins extracted from G. elata on hypoxia/reoxygenation (H/R) injury in H9c2 cardiomyocytes. The results demonstrated that parishins had significant protective effects on myocardial cells with parishins J and B providing greater cardioprotection through down-regulation of the level of cleaved-caspase-3 and cytochrome c in the cytoplasm and Bax, and up-regulation of cytochrome c in the mitochondria and Bcl-2 than induced by the positive control gastrodin. Additional study of the mechanisms of action indicated that the myocardial protection provided by parishin J was due to inhibition of JNK1 phosphorylation levels, down-regulation of c-jun and ATF-2 phosphorylation levels, a decrease in the phosphorylation of 14-3-3 and an increase in its binding to Bax. Therefore, parishin J was revealed to be a promising candidate as a novel treatment for myocardial protection.

5.
Cancer Nurs ; 43(1): 2-11, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31805022

RESUMO

BACKGROUND: One of the issues that cancer patients with minor or adolescent children face is whether to inform children about their cancer diagnosis. Their perspectives toward this issue are underexplored in China. OBJECTIVE: The aim of this study was to explore Chinese cancer parents' perspectives toward informing children of their diseases. METHODS: Eighteen cancer patients with children younger than 18 years were recruited using purposive sampling. Semistructured, face-to-face, in-depth interviews were conducted using a phenomenological approach. Data were analyzed using Colaizzi's approach. RESULTS: Six main themes with 2 to 6 subthemes emerged: (a) inappropriate to disclose the true diagnosis to children, (b) appropriate to disclose the true diagnosis to children, (c) communication content between cancer patients and their children in regard to cancer, (d) attitude on ways of disclosing cancer diagnosis to children, (e) reflections on parenting style, and (f) unmet needs for information and support. CONCLUSIONS: Perspectives of Chinese cancer parents toward truthfully disclosing their diagnosis vary, but all are for the purpose of protecting their children. Study findings indicate that Chinese cancer parents have culture-specific considerations, such as concepts of death and filial piety, which differ from studies in Western countries. Meanwhile, there are barriers between cancer parents and children in communicating about the illness and unmet needs for information and support. IMPLICATIONS FOR PRACTICE: Psychosocial assessments and consultations, education, and interventions need to include a focus on the dependent children of adult cancer parents.

6.
Neuroimage ; 204: 116205, 2020 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-31546047

RESUMO

Multivariate pattern analysis (MVPA) has become vastly popular for analyzing functional neuroimaging data. At the group level, two main strategies are used in the literature. The standard one is hierarchical, combining the outcomes of within-subject decoding results in a second-level analysis. The alternative one, inter-subject pattern analysis, directly works at the group-level by using, e.g. a leave-one-subject-out cross-validation. This study provides a thorough comparison of these two group-level decoding schemes, using both a large number of artificial datasets where the size of the multivariate effect and the amount of inter-individual variability are parametrically controlled, as well as two real fMRI datasets comprising 15 and 39 subjects, respectively. We show that these two strategies uncover distinct significant regions with partial overlap, and that inter-subject pattern analysis is able to detect smaller effects and to facilitate the interpretation. The core source code and data are openly available, allowing to fully reproduce most of these results.

7.
Neurobiol Aging ; 85: 155.e1-155.e4, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31235344

RESUMO

Presenilin 1 (PSEN1), presenilin 2 (PSEN2), and amyloid precursor protein (APP) genes account for the majority of autosomal dominant Alzheimer's disease (AD), with PSEN1 being the most common. We screened these genes for mutations in a Chinese proband from an autosomal dominant early-onset AD pedigree. Early-onset AD is defined as the age at onset of AD < 65 years. A heterozygous variant (c.332G > T) of PSEN1, which results in a missense mutation (p.Gly111Val), was identified. Three prediction programs suggested this mutation was disease causing. When PSEN1 Gly111Val was overexpressed in HEK293/APPswe cells, the ratio of Aß42/Aß40 was significantly increased compared with that of wild-type PSEN1. Our results suggest that this novel PSEN1 Gly111Val mutation may play a pathogenic role in AD.

8.
Chemosphere ; 239: 124704, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31520983

RESUMO

Parabens (p-hydroxybenzoic acids) are commonly used as preservatives in personal care products. Although the rate of exposure to a single product may be small, it is possible for an individual to have marked exposure to parabens through the use of multiple personal care products (aggregate exposure). To assess the risks associated with aggregate exposure to parabens, we estimated the dermal exposure rate distributions of four major parabens (methylparaben, MP; ethylparaben, EP; propylparaben, PP; butylparaben, BP) in various products for women (>20 years old) and children (1-3 years old) by using the probabilistic exposure assessment tool ConsExpo. Integrated exposure rates were then calculated as the sum of exposure rates for individual products. Aggregate exposure rates for women were 1.2 (median) (0.13 [5%ile], 6.9 [95%ile]), 0.43 (0.029, 3.0), 0.35 (0.032, 1.9), and 0.25 (0.027, 1.2) mg kg-bw-1 day-1 for MP, EP, PP, and BP, respectively. Those for children were 0.47 (0.054, 2.2), 0.11 (0.012, 0.60), 0.13 (0.012, 0.78), and 0.13 (0.0065, 0.85) mg kg-bw-1 day-1 for MP, EP, PP, and BP, respectively. Integrated exposure rates for women were several times those for children. In both cases, personal care products that were applied to larger areas of skin and were used more frequently were more likely to be associated with higher exposure rates. According to the results of a risk assessment using a margin of exposure approach, aggregate rates of exposure to PP and BP, but not MP or EP, were high enough to warrant concern about disruption of the reproductive system.

9.
Chemosphere ; 240: 124929, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31561158

RESUMO

An UV enhanced electro-Fenton (EF) process was conducted in a flow-through system to remove rhodamine B (RhB) in the presence of ethylenediamine tetraacetate (EDTA). The process was denoted as UV/EDTA/EF where EDTA formed complexes with iron ions, thus keeping them soluble at high pH values. The process was very efficient as it could initiate the fast reduction of FeIII to FeII and thus the decomposition of H2O2. The influence of Fe dose, the ratio of EDTA:Fe, aeration rate, flow rate, current, initial RhB concentration and pH on the RhB removal in the UV/EDTA/EF process was investigated. The best RhB removal was obtained as 89.9% at [Fe]0 = [EDTA]0 = 0.2 mM, current = 50 mA, aeration rate = 20 mL min-1, flow rate = 7 mL min-1, pH = 7 and [Na2SO4]0 = 0.05 M. The degradation of EDTA during the process was also studied. Radical scavenging experiments indicated that OH was the dominant radical for RhB removal. While, the photolysis of FeIIIEDTA was mainly responsible for EDTA degradation. RhB and EDTA removal in different systems was compared. The stability test proved that in the presence of EDTA, the UV/EF process could remove RhB with high efficiency in the first two runs. While, the efficiency dropped remarkably after EDTA's complete depletion. The mechanisms of the UV/EDTA/EF process were proposed. UV/EDTA/EF conducted in the flow-through system was able to efficiently remove RhB as well as EDTA in a wide pH range and proposed as a promising approach for wastewater treatment.

10.
J Nanosci Nanotechnol ; 20(3): 1838-1844, 2020 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-31492350

RESUMO

Pt/Bi2WO6 composite photocatalysts were prepared by a facile photoreduction method. Pt nanoparticles with an average size of 5-8 nm were successfully deposited on the surface of Bi2WO6 microspheres and the photocatalytic activity of Bi2WO6 was greatly improved by Pt nanoparticles. The photo-induced charge transfer properties of samples were studied by means of surface photovoltage (SPV) and transient photovoltage (TPV) techniques, giving an insight into the intrinsic reasons of the improvement in photocatalytic activity. The SPV and TPV results revealed that the deposited Pt nanoparticles could trap photo-induced electrons and then largely enhance the separation efficiency of photo-induced charge carriers.

11.
Mol Ther ; 27(12): 2158-2165, 2019 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-31805256

RESUMO

NL003 is a plasmid engineered to simultaneously express two isoforms of hepatocyte growth factor. This phase II study was performed to assess the clinical safety and efficacy of intramuscular injection of NL003 in critical limb ischemia (CLI) patients for 6 months. Two hundred patients (Rutherford scale 4-5) were randomly assigned: placebo (n = 50), low-dose NL003 (n = 50), middle-dose NL003 (n = 50), or high-dose NL003 (n = 50). The drug was administered in the affected limb of 197 patients on days 0, 14, and 28. No significant differences in the incidence of adverse events (AEs) or serious AEs were found among the groups. At 6 months, pain severity was significantly reduced in all NL003 groups, but not in the placebo group (p < 0.05). The proportion of patients with complete ulcer healing in the high-dose group was significantly higher than that of the placebo group (p = 0.0095). There were no statistically significant differences in transcutaneous oxygen pressure (TcPO2), ankle-brachial index (ABI), or toe-brachial index (TBI) value among the four groups throughout the study period. These results provide the first effective evidence of significant improvements in total healing of ulcers in treated legs, complete pain relief without analgesics, and safety for NL003 in patients with Rutherford stage 4-5.

12.
Org Lett ; 2019 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-31797670

RESUMO

Ruthenium-catalyzed aromatic H/D exchange in [D4]acetic acid has been developed. By using N-heteroarenes as directing groups, both ortho and meta positions are selectively deuterated with high levels of D incorporation. Moreover, this strategy provides an alternative way to achieve meta-C-H activation.

13.
Adv Exp Med Biol ; 1180: 233-265, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31784967

RESUMO

Depression is highly prevalent and causes unnecessary human suffering and economic loss. Therefore, its treatment and prevention are of utmost importance. There are several advantages of using psychotherapy either by itself or combined with pharmacological treatment methods in the treatment of depression. First, it is well known that combining biological treatment with psychosocial methods increases the chances of recovery. Second, in some individuals, psychotherapy continues to be the only solution. Third, the use of antidepressants contains some safety risks and side effects, but psychotherapy does not. Fourth, clinically, depressive patients prefer psychotherapy to drug therapy. Use of a depression-focused psychotherapy alone is recommended as an initial treatment choice for patients with mild to moderate depression, with clinical evidence supporting the use of cognitive behavioral therapy (CBT), interpersonal psychotherapy (IPT), psychodynamic psychotherapy (PDP), and problem-solving therapy (PST) in individual and group formats. Important developments took place within the past 20 years in the psychotherapy of depression. In the present chapter, we introduced several key issues, such as, Are all psychotherapies equally effective? Who benefits from psychotherapies? Is telepsychotherapy effective? Finally, we introduce the psychotherapy for special populations.


Assuntos
Transtorno Depressivo/terapia , Psicoterapia/métodos , Antidepressivos , Terapia Cognitivo-Comportamental , Humanos , Resolução de Problemas , Psicoterapia Psicodinâmica
14.
Anal Chem ; 2019 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-31794197

RESUMO

High-throughput drug discovery is highly depended on the targets available to accelerate the process of candidates screening. Traditional chemical proteomics approaches for the screening of drug targets usually require the immobilization/modification of the drug molecules to pull down the interacting proteins. Recently energetics-based proteomics methods provide an alternative way to study drug-protein interaction by using complex cell lysate directly without any modification of the drugs. In this study, we developed a novel energetics-based proteomics strategy, solvent-induced protein precipitation (SIP) approach, to profile the interaction of drugs with their target proteins by using quantitative proteomics. The method is easy to use for any laboratory with common chemical reagents of acetone, alcohol and acetic acid. The SIP approach was able to identify the well-known protein targets of methotrexate, SNS-032 and a pan-kinase inhibitor of staurosporine in cell lysate. We further applied this approach to discover the off-targets of geldanamycin. Three known protein targets of HSP90 family were successfully identified, and several potential off-targets including NADH dehydrogenase subunits NDUFV1 and NDUFAB1 were identified for the first time, and the NDUFV1 was validated by using western blotting. In addition, this approach was capable of evaluating affinity of drug-target interaction. The data collectively proved that our approach provides a powerful platform for drug target discovery.

15.
PLoS Pathog ; 15(12): e1008082, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31805154

RESUMO

The clinical application of conventional peptide drugs, such as the HIV-1 fusion inhibitor enfuvirtide, is limited by their short half-life in vivo. To overcome this limitation, we developed a new strategy to extend the in vivo half-life of a short HIV-1 fusion inhibitory peptide, CP24, by fusing it with the human IgG Fc-binding peptide (IBP). The newly engineered peptide IBP-CP24 exhibited potent and broad anti-HIV-1 activity with IC50 values ranging from 0.2 to 173.7 nM for inhibiting a broad spectrum of HIV-1 strains with different subtypes and tropisms, including those resistant to enfuvirtide. Most importantly, its half-life in the plasma of rhesus monkeys was 46.1 h, about 26- and 14-fold longer than that of CP24 (t1/2 = 1.7 h) and enfuvirtide (t1/2 = 3 h), respectively. IBP-CP24 intravenously administered in rhesus monkeys could not induce significant IBP-CP24-specific antibody response and it showed no obvious in vitro or in vivo toxicity. In the prophylactic study, humanized mice pretreated with IBP-CP24 were protected from HIV-1 infection. As a therapeutic treatment, coadministration of IBP-CP24 and normal human IgG to humanized mice with chronic HIV-1 infection resulted in a significant decrease of plasma viremia. Combining IBP-CP24 with a broad neutralizing antibody (bNAb) targeting CD4-binding site (CD4bs) in gp120 or a membrane proximal external region (MPER) in gp41 exhibited synergistic effect, resulting in significant dose-reduction of the bNAb and IBP-CP24. These results suggest that IBP-CP24 has the potential to be further developed as a new HIV-1 fusion inhibitor-based, long-acting anti-HIV drug that can be used alone or in combination with a bNAb for treatment and prevention of HIV-1 infection.

16.
Free Radic Biol Med ; 2019 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-31805398

RESUMO

Targeting redox vulnerability of cancer cells by pro-oxidants capable of generating reactive oxygen species (ROS) has surfaced as an important anticancer strategy. Due to the intrinsic narrow therapeutic window and other dangerous side effects of ROS generation, it is highly needed and challenging to develop pro-oxidative anticancer agents (PAAs) with high selectivity for generating ROS in cancer cells. Herein we report a hydrogen peroxide (H2O2)-activated Cu(II) pro-ionophore strategy to develop naphthazarin (Nap) as such type of PAAs based on the H2O2-mediated conversion of boronate to free phenol. The boronate-protected Nap (PNap) can exploit increased levels of H2O2 in HepG2 cells to in situ release Nap followed by its efflux via conjugation with reduced glutathione (GSH), allowing that the Nap-GSH adduct works as a Cu(II) ionophore to induce continuously GSH depletion via a reduction-dependent releasing of Cu(I) by GSH. This strategy endows PNap with the unprecedented ability to hit multi-redox characteristics (increased levels of H2O2, GSH and copper) of HepG2 cells, leading to ROS generation preferentially in HepG2 cells along with their selective death.

17.
J Autoimmun ; : 102360, 2019 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-31806420

RESUMO

OBJECTIVE: Gut dysbiosis has been reported implicated in ankylosing spondylitis (AS), a common chronic inflammatory disease mainly affects sacroiliac joints and spine. Utilizing deep sequencing on the feces of untreated AS patients, our study aimed at providing an in-depth understanding of AS gut microbiota. METHODS: We analyzed the fecal metagenome of 85 untreated AS patients and 62 healthy controls by metagenomic shotgun sequencing, and 23 post-treatment feces of those AS patients were collected for comparison. Comparative analyses among different cohorts including AS, rheumatoid arthritis and Behcet's disease were performed to uncover some common signatures related to inflammatory arthritis. Molecular mimicry of a microbial peptide was also demonstrated by ELISpot assay. RESULTS: We identified AS-enriched species including Bacteroides coprophilus, Parabacteroides distasonis, Eubacterium siraeum, Acidaminococcus fermentans and Prevotella copri. Pathway analysis revealed increased oxidative phosphorylation, lipopolysaccharide biosynthesis and glycosaminoglycan degradation in AS gut microbiota. Microbial signatures of AS gut selected by random forest model showed high distinguishing accuracy. Some common signatures related to autoimmunity, such as Bacteroides fragilis and type III secretion system (T3SS), were also found. Finally, in vitro experiments demonstrated an increased amount of IFN-γ producing cells triggered by a bacterial peptide of AS-enriched species, mimicking type II collagen. CONCLUSIONS: These findings collectively indicate that gut microbiota was perturbed in untreated AS patients with diagnostic potential, and some AS-enriched species might be triggers of autoimmunity by molecular mimicry. Additionally, different inflammatory arthritis shared some common microbial signatures.

18.
Medicine (Baltimore) ; 98(49): e18276, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31804368

RESUMO

RATIONALE: Pulmonary benign metastasizing leiomyoma (PBML) is rare, usually occurs in women who underwent hysterectomy during the reproductive years, and has no obvious clinical symptoms. A full understanding of the characteristics of PBML is important for its sequential treatment and prognosis. PATIENT CONCERNS: In this report, a 36-year-old female patient with previous uterine leiomyoma who underwent 3 surgical resections of the uterus, bilateral fallopian tubes, and partial omentum was investigated. The physical examination revealed a tumor in the right lower lobe and mediastinum and a solid nodule in the right middle lobe. DIAGNOSES: Chest computed tomography (CT) confirmed a tumor in the right lower lobe and mediastinum and a solid nodule in the right middle lobe. Further positron-emission tomography computed tomography (PET-CT) with 18F-fluorodeoxyglucose (FDG) of the whole body showed mildly intense accumulation of 18F-FDG in the tumor (maximum standardized uptake value [SUV max], 2.6). A pathological examination then confirmed the presence of fibrous and vascular tissue after CT-guided percutaneous biopsy of the tumor in the right lower lobe. Additionally, surgical resection of the tumor and nodule was performed for histological analysis and immunohistochemical assays for estrogen receptor (ER) and progesterone receptor (PR). INTERVENTIONS: The patient underwent complete tumor surgical resection and nodule wedge resection. OUTCOMES: No postoperative complications occurred. No recurrence or other signs of metastasis were found during an 18-month follow-up observation period. CONCLUSION: In this case, lung and mediastinal metastasis of uterine fibroids was observed. However, depending on only a postoperative histological analysis is insufficient for the diagnosis of PBML. Histological analysis combined with an evaluation of the expression levels of ER and PR is crucial for the diagnosis and treatment of PBML.

19.
Nat Commun ; 10(1): 5537, 2019 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-31804485

RESUMO

When metallic glasses (MGs) are subjected to mechanical loads, the plastic response of atoms is non-uniform. However, the extent and manner in which atomic environment signatures present in the undeformed structure determine this plastic heterogeneity remain elusive. Here, we demonstrate that novel site environment features that characterize interstice distributions around atoms combined with machine learning (ML) can reliably identify plastic sites in several Cu-Zr compositions. Using only quenched structural information as input, the ML-based plastic probability estimates ("quench-in softness" metric) can identify plastic sites that could activate at high strains, losing predictive power only upon the formation of shear bands. Moreover, we reveal that a quench-in softness model trained on a single composition and quench rate substantially improves upon previous models in generalizing to different compositions and completely different MG systems (Ni62Nb38, Al90Sm10 and Fe80P20). Our work presents a general, data-centric framework that could potentially be used to address the structural origin of any site-specific property in MGs.

20.
Sci Total Environ ; : 135126, 2019 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-31791780

RESUMO

Heavy metal(loid) pollution in large regions is often highly complex due to the coexistence and interactions of metal(loid)s and complex soil environments. However, the interaction effects of heavy metal(loid)s on their bioavailability in large regions remain obscure. Here, we identified the interaction effects of Pb, Cd and As on their bioavailability in cocontaminated paddy soils of Shaoguan City, China. The results showed that pH (12.40%) was the most important impact factor among the key soil properties of the pH, CEC, and SOM for the bioconcentration factor (BCF) of Cd. As the soil Pb content decreased and the soil Cd content increased, the interaction of soil Pb and Cd increased the BCF of Pb. As the soil Pb content increased and the soil Cd content decreased, the interaction of soil Pb and Cd increased the BCF of Cd. The synergistic interaction of Pb and Cd in soil promoted the accumulation of both Pb and Cd in rice under certain soil conditions. Specifically, when the average pH and CEC were below 6.19 ± 0.82 and above 7.23 ± 2.55 cmol (+)/kg, respectively, the average BCF of Cd varied from 0.70 ± 0.80 to 1.47 ± 0.62 due to the interactive effect of soil Cd and Pb on the BCF of Cd. When the average pH was above 6.19 ± 0.82 and the average SOM was below and above 27.12 ± 20.34 mg/kg, respectively, the corresponding average BCF of Cd varied from 0.70 ± 0.63 to 0.10 ± 0.26. As the average soil Cd and As contents increased, the interactive effect of soil As and Cd on the average BCF of As decreased. The negative interaction of As and Cd in soil mitigated As accumulation in rice at certain soil Cd and As contents. Our results suggest that to achieve the large-scale control of heavy metal(loid) pollution, the interactions among multiple metal(loid)s and soil properties should be considered.

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