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Liang X, Chen S, Zhang X, Hou Z, Lin X, Chao L. Effects of different aging methods on the ability of biochar to adsorb heavy metal cadmium and its physical and chemical properties. Environ Sci Pollut Res Int 2024; 31:19409-19422. [PMID: 38358633 DOI: 10.1007/s11356-024-32406-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
The aging process can affect the physical and chemical properties as well as adsorption capacity of biochar. This study focuses on the heavy metal cadmium (Cd) as the research object, and artificially ages biochar prepared from rice straw and corn straw through accelerated freeze-thaw cycles, alternating dry wet cycles, and ultraviolet light treatment, in order to evaluate the effects of different aging conditions on the physical and chemical properties of the two different types of biochar and on their adsorption capacities for Cd. After aging, the pH of rice and corn biochar decreased to varying degrees, respectively. The surface structure was ruptured, the average pore diameter was decreased, and the specific surface area was increased by 27.3%, 21.9%, and 9.8% (rice) and 95.4%, 27.7%, and 13.4% (corn). Ultraviolet light aging has the most significant impact on the elemental content of biochar, and the C content was decreased by 12.4% (rice) and 9.3% (corn). The O content was increased by 11.2% (rice) and 44.1% (corn), and the numbers of O/C, H/C, (O + N)/C, and oxygen-containing functional groups were increased. These results demonstrate that the aging process reduces the degree of aromatization of biochar, while enhancing its polarity and Cd adsorption capacity. Rice straw biochar (RSB) has a greater ability to adsorb Cd than corn straw biochar (CSB). In addition, ultraviolet light aging is particularly effective in increasing heavy metal adsorption.
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Affiliation(s)
- Xiao Liang
- College of Environment, Shenyang University, Shenyang, 110044, China
| | - Su Chen
- College of Environment, Shenyang University, Shenyang, 110044, China.
- College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, 110168, China.
| | - Xiaoying Zhang
- College of Environment, Shenyang University, Shenyang, 110044, China
| | - Ziyan Hou
- College of Environment, Shenyang University, Shenyang, 110044, China
| | - Xiaonan Lin
- College of Environment, Shenyang University, Shenyang, 110044, China
| | - Lei Chao
- College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, 110168, China
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Xie BH, Chao L, Wan SJ, Si HR, Yu WD, Huang Z, Wang SG, Desneux N, Tang B, Sun SS. Analysis of gut microbiota of ladybug beetle (Harmonia axyridis) after feeding on different artificial diets. BMC Microbiol 2024; 24:5. [PMID: 38172684 PMCID: PMC10763339 DOI: 10.1186/s12866-023-03155-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Harmonia axyridis is an effective natural enemy insect to a variety of phloem-sucking pests and Lepidopteran larvae, such as aphids, scabies, and phylloxera, while its industrial production is limited due to unmature artificial diet. Insect intestinal microbiota affect host development and reproduction. The aim of this study is to understand intestinal microbiota composition of H. axyridis and screen effective probiotics on artificial diet. Considering the role of the components and composition of the diet on the structure and composition of the intestinal microbiome, four kinds of diets were set up: (1) aphid; (2) basic diet; (3) basic diet + glucose; (4) basic diet + trehalose. The gut microbiota of H. axyridis was detected after feeding on different diets. RESULTS Results showed that the gut microbiota between artificial diet group and aphid groups were far apart, while the basic and glucose groups were clearly clustered. Besides, the glucose group and trehalose group had one unique phylum, Cryptophyta and Candidatus Saccharibacteria, respectively. The highest abundance of Proteobacteria was found in the aphid diet. The highest abundance of Firmicutes was found in the basic diet. However, the addition of glucose or trehalose alleviated the change. In addition, the relative abundance of Enterobacter, Klebsiella, Enterobacteriaceae_unclassified, Enterobacteriales_unclassified and Serratia in the aphid group was higher than other groups. Moreover, the function of gut genes in each group also showed clear differences. CONCLUSION These results have offered a strong link between artificial diets and gut microbes, and also have provided a theoretical basis for the screening of synergistic probiotics in artificial diet.
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Affiliation(s)
- Bing-Hua Xie
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
| | - Lei Chao
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
| | - Si-Jing Wan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
| | - Hui-Ru Si
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
| | - Wei-Dong Yu
- Zhejiang Dingyi Biotechnology Corporation, Quzhou, 324100, Zhejiang, China
| | - Zhen Huang
- Zhejiang Dingyi Biotechnology Corporation, Quzhou, 324100, Zhejiang, China
| | - Shi-Gui Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China
| | | | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China.
| | - Si-Si Sun
- Guizhou Institute of Mountainous Meteorological Sciences, Guiyang, 550002, Guizhou, China.
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Yuan R, Wen J, Xing Q, Chao L, Hu C, Ren J, Meng F. Efficacy of pretreatment with remimazolam on prevention of propofol-induced injection pain in patients undergoing gastroscopy. Sci Rep 2023; 13:19683. [PMID: 37951978 PMCID: PMC10640606 DOI: 10.1038/s41598-023-47151-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023] Open
Abstract
To evaluate the efficacy of remimazolam pretreatment in preventing propofol-induced injection pain (PIP) in patients undergoing gastroscopy. One hundred and forty patients (ASA I-II, aged 18-65 years, BMI 18-28 kg/m2) who were to undergo gastroscopy were randomized into either a saline group (group S) or a remimazolam group (group R) (n = 70 for each) on a computer-generated random number basis. The patients in group S received normal saline (0.1 ml/kg) and those in group R were administered remimazolam (0.1 mg/kg) via intravenous infusion for 60 s. 30 s after the injection of normal saline or remimazolam, patients received intravenously propofol (0.5 ml/s) until loss of consciousness. A different anesthesiologist who was unaware of the pretreatment was responsible for maintaining the outcome. The primary endpoint of our study was the incidence of PIP, which was measured using a 4-point scale. Secondary endpoints include the intensity of PIP, vital signs, characteristics of surgery and recovery, and adverse events. The incidence of PIP was significantly lower in group R than in group S (13 vs 51%, p < 0.001), and a lower percentage of patients presented with moderate PIP (3 vs 20%, p < 0.001). Moreover, lower consumption of propofol, shorter recovery time, and greater patient satisfaction were observed in group R than in group S. Pretreatment with remimazolam can effectively reduce the incidence and intensity of PIP in gastroscopy and shorten the recovery time without severe adverse effects.Clinical Trials Registration: Trial Registration: Chinese Clinical Trial Registry (identifier: ChiCTR2200063793). Registry time: 16/09/2022. Registry name: Efficacy of Pre-Treatment with Remimazolam on Prevention of Propofol-Induced Injection Pain in Patients Undergoing Gastroscopy. The date of patient enrollment began from 2022-9-17 to 2022-10-10. The link to the registration: https://www.chictr.org.cn/showproj.html?proj=176004 .
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Affiliation(s)
- Ruimei Yuan
- Department of Anesthesiology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Jing Wen
- Department of Urology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, No.105 JieFang Road, Jinan, 250013, Shandong, China
| | - Qingfei Xing
- Department of Urology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, No.105 JieFang Road, Jinan, 250013, Shandong, China
| | - Lei Chao
- Department of Anesthesiology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chunhai Hu
- Department of Urology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, No.105 JieFang Road, Jinan, 250013, Shandong, China.
| | - Jie Ren
- Department of Anesthesiology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Fanjun Meng
- Department of Anesthesiology, Jinan Central Hospital, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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Jiang X, Zhong F, Chen Y, Shi D, Chao L, Yu L, He B, Xu C, Wu Y, Tang B, Duan H, Wang S. Novel compounds ZK-PI-5 and ZK-PI-9 regulate the reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae), with insecticide potential. J Econ Entomol 2023; 116:1850-1861. [PMID: 37478561 DOI: 10.1093/jee/toad140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/20/2023] [Accepted: 07/13/2023] [Indexed: 07/23/2023]
Abstract
Trehalase inhibitors prevent trehalase from breaking down trehalose to provide energy. Chitinase inhibitors inhibit chitinase activity affecting insect growth and development. This is an important tool for the investigation of regulation of trehalose metabolism and chitin metabolism in insect reproduction. There are few studies on trehalase or chitinase inhibitors' regulation of insect reproduction. In this study, ZK-PI-5 and ZK-PI-9 were shown to have a significant inhibitory effect on the trehalase, and ZK-PI-9 significantly inhibited chitinase activity in female pupae. We investigated the reproduction regulation of Spodoptera frugiperda using these new inhibitors and evaluated their potential as new insecticides. Compounds ZK-PI-5 and ZK-PI-9 were injected into the female pupae, and the control group was injected with solvent (2% DMSO). The results showed that the emergence failure rate for pupae treated with inhibitors increased dramatically and aberrant phenotypes such as difficulty in wings spreading occurred. The oviposition period and longevity of female adults in the treated group were significantly shorter than those in the control group, and the ovaries developed more slowly and shrank earlier. The egg hatching rate was significantly reduced by treatment with the inhibitor. These results showed that the two new compounds had a significant impact on the physiological indicators related to reproduction of S. frugiperda, and have pest control potential. This study investigated the effect of trehalase and chitin inhibitors on insect reproduction and should promote the development of green and efficient insecticides.
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Affiliation(s)
- Xinyi Jiang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Fan Zhong
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Yan Chen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Dongmei Shi
- Department of Applied Chemistry, Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Lei Chao
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Liuhe Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Biner He
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Caidi Xu
- Jing Hengyi School of Education, HangzhouNormal University, Hangzhou, Zhejiang 311121, P.R.China
| | - Yan Wu
- Key Laboratory of Surveillance and Management of Invasive Alien Species in Guizhou Education Department ,Guiyang University, Guiyang 550005, P.R.China
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
| | - Hongxia Duan
- Department of Applied Chemistry, Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Shigui Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P.R. China
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Keating D, Krengel M, Dugas J, Toomey R, Chao L, Steele L, Janulewicz LP, Heeren T, Quinn E, Klimas N, Sullivan K. Cognitive decrements in 1991 Gulf War veterans: associations with Gulf War illness and neurotoxicant exposures in the Boston Biorepository, Recruitment, and Integrative Network (BBRAIN) cohorts. Environ Health 2023; 22:68. [PMID: 37794452 PMCID: PMC10548744 DOI: 10.1186/s12940-023-01018-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/19/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND During deployment, veterans of the 1991 Gulf War (GW) were exposed to multiple war-related toxicants. Roughly a third of these veterans continue to exhibit neurotoxicant induced symptoms of Gulf War Illness (GWI), a multi-faceted condition that includes fatigue, pain and cognitive decrements. When studied empirically, both deployed veterans with exposures and those who meet the criteria for GWI are more likely to show deficits in the area of neuropsychological functioning. Although studies have shown cognitive impairments in small sample sizes, it is necessary to revisit these findings with larger samples and newer cohorts to see if other areas of deficit emerge with more power to detect such differences. A group of researchers and clinicians with expertise in the area of GWI have identified common data elements (CDE) for use in research samples to compare data sets. At the same time, a subgroup of researchers created a new repository to share these cognitive data and biospecimens within the GWI research community. METHODS The present study aimed to compare cognitive measures of attention, executive functioning, and verbal memory in a large sample of GWI cases and healthy GW veteran controls using neuropsychological tests recommended in the CDEs. We additionally subdivided samples based on the specific neurotoxicant exposures related to cognitive deficits and compared exposed versus non-exposed veterans regardless of case criteria status. The total sample utilized cognitive testing outcomes from the newly collated Boston, Biorepository, Recruitment, and Integrative Network (BBRAIN) for GWI. RESULTS Participants included 411 GW veterans, 312 GWI (cases) and 99 healthy veterans (controls). Veterans with GWI showed significantly poorer attention, executive functioning, learning, and short-and-long term verbal memory than those without GWI. Further, GW veterans with exposures to acetylcholinesterase inhibiting pesticides and nerve gas agents, had worse performance on executive function tasks. Veterans with exposure to oil well fires had worse performance on verbal memory and those with pyridostigmine bromide anti-nerve gas pill exposures had better verbal memory and worse performance on an attention task compared to unexposed veterans. CONCLUSIONS This study replicates prior results regarding the utility of the currently recommended CDEs in determining impairments in cognitive functioning in veterans with GWI in a new widely-available repository cohort and provides further evidence of cognitive decrements in GW veterans related to war-related neurotoxicant exposures.
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Affiliation(s)
- D Keating
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, T4W, Boston, MA, 02118, USA
| | - M Krengel
- Department of Neurology, Boston University School of Medicine, 72 East Concord St, Boston, MA, 02118, USA
| | - J Dugas
- Department of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, 02118, USA
| | - R Toomey
- Department of Psychological and Brain Sciences, College of Arts and Sciences, Boston University, 900 Commonwealth Ave, Boston, MA, USA
| | - L Chao
- San Francisco Veterans Affairs Health Care System, University of California, San Francisco, CA, 94143, USA
| | - L Steele
- Baylor College of Medicine Neuropsychiatry Division, Department of Psychiatry and Behavioral Sciences, Houston, TX, 77030, USA
| | - Lloyd P Janulewicz
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, T4W, Boston, MA, 02118, USA
| | - T Heeren
- Department of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, 02118, USA
| | - E Quinn
- Department of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, 02118, USA
| | - N Klimas
- Dr. Kiran C. Patel College of Osteopathic Medicine, Institute for Neuroimmune Medicine, Nova Southeastern University, Fort Lauderdale, FL, 33314, USA
- Geriatric Research Education and Clinical Center, Miami VA Medical Center, Miami, FL, 33125, USA
| | - K Sullivan
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, T4W, Boston, MA, 02118, USA.
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Abdullah L, Nkiliza A, Niedospial D, Aldrich G, Bartenfelder G, Keegan A, Hoffmann M, Mullan M, Klimas N, Baraniuk J, Crawford F, Krengel M, Chao L, Sullivan K. Genetic association between the APOE ε4 allele, toxicant exposures and Gulf war illness diagnosis. Environ Health 2023; 22:51. [PMID: 37415220 PMCID: PMC10324249 DOI: 10.1186/s12940-023-01002-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
INTRODUCTION Exposure to nerve agents, pyridostigmine bromide (PB), pesticides, and oil-well fires during the 1991 Gulf War (GW) are major contributors to the etiology of Gulf War Illness (GWI). Since the apolipoprotein E (APOE) ε4 allele is associated with the risk of cognitive decline with age, particularly in the presence of environmental exposures, and cognitive impairment is one of the most common symptoms experienced by veterans with GWI, we examined whether the ε4 allele was associated with GWI. METHODS Using a case-control design, we obtained data on APOE genotypes, demographics, and self-reported GW exposures and symptoms that were deposited in the Boston Biorepository and Integrative Network (BBRAIN) for veterans diagnosed with GWI (n = 220) and healthy GW control veterans (n = 131). Diagnosis of GWI was performed using the Kansas and/or Center for Disease Control (CDC) criteria. RESULTS Age- and sex-adjusted analyses showed a significantly higher odds ratio for meeting the GWI case criteria in the presence of the ε4 allele (Odds ratio [OR] = 1.84, 95% confidence interval [CI = 1.07-3.15], p ≤ 0.05) and with two copies of the ε4 allele (OR = 1.99, 95% CI [1.23-3.21], p ≤ 0.01). Combined exposure to pesticides and PB pills (OR = 4.10 [2.12-7.91], p ≤ 0.05) as well as chemical alarms and PB pills (OR = 3.30 [1.56-6.97] p ≤ 0.05) during the war were also associated with a higher odds ratio for meeting GWI case criteria. There was also an interaction between the ε4 allele and exposure to oil well fires (OR = 2.46, 95% CI [1.07-5.62], p ≤ 0.05) among those who met the GWI case criteria. CONCLUSION These findings suggest that the presence of the ε4 allele was associated with meeting the GWI case criteria. Gulf War veterans who reported exposure to oil well fires and have an ε4 allele were more likely to meet GWI case criteria. Long-term surveillance of veterans with GWI, particularly those with oil well fire exposure, is required to better assess the future risk of cognitive decline among this vulnerable population.
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Affiliation(s)
- L Abdullah
- Roskamp Institute, Sarasota, FL, USA.
- James A. Haley VA Hospital, Tampa, FL, USA.
| | - A Nkiliza
- James A. Haley VA Hospital, Tampa, FL, USA
| | | | - G Aldrich
- Roskamp Institute, Sarasota, FL, USA
- James A. Haley VA Hospital, Tampa, FL, USA
| | | | - A Keegan
- Roskamp Institute, Sarasota, FL, USA
| | | | - M Mullan
- Roskamp Institute, Sarasota, FL, USA
| | - N Klimas
- Nova Southeastern University, Ft Lauderdale, FL, USA
- Miami VA Medical Center GRECC, Miami, FL, USA
| | - J Baraniuk
- Department of Medicine, Georgetown University, Washington, DC, USA
| | - F Crawford
- Roskamp Institute, Sarasota, FL, USA
- James A. Haley VA Hospital, Tampa, FL, USA
| | - M Krengel
- Boston University School of Medicine, Boston, MA, USA
| | - L Chao
- University of California, San Francisco, CA, USA
| | - K Sullivan
- Boston University School of Public Health, Boston, MA, USA
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Wan SJ, Si HR, Wang XZ, Chao L, Ma W, Sun SS, Tang B, Tan XL, Wang S. Regulation of Vicia faba L. Response and Its Effect on Megoura crassicauda Reproduction under Zinc Stress. Int J Mol Sci 2023; 24:ijms24119659. [PMID: 37298608 DOI: 10.3390/ijms24119659] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
The heavy metal zinc (Zn) is known to be transmitted in the food chain; however, the effect of Zn stress on beans and herbivorous insects is largely unclear. This study aimed to investigate the resistance of broad bean plants to Zn stress and the consequent changes in their physiological and biochemical metabolism by simulating heavy metal pollution in soil. Simultaneously, the effects of aphid progeny treated with different Zn concentrations on the expression of carbohydrate and related genes were analyzed. The results showed that Zn had no effect on the germination rate of broad beans, but other effects mainly manifested as follows. (1) Chlorophyll content decreased. (2) The total soluble sugar and Zn content in stems and leaves increased with increasing Zn content. (3) The proline content first increased and then decreased with increasing Zn content. (4) The height of the seedlings indicates that low concentrations promote growth and high concentrations inhibit growth. In addition, only the first-generation fecundity decreased significantly when aphids fed on heavy metal broad beans. Continuous high Zn levels increase the trehalose content of aphid F1 and F2, while F3 decreases. These results can not only provide a theoretical basis for exploring the impact of soil heavy metal pollution on ecosystems but also preliminarily evaluate the possibility of broad beans as a means of pollution remediation.
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Affiliation(s)
- Si-Jing Wan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Hui-Ru Si
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Xian-Zhong Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Lei Chao
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Wu Ma
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Si-Si Sun
- Guizhou Institute of Mountainous Environment and Climate, Guiyang 550002, China
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiao-Ling Tan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shigui Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
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Zhong F, Yu L, Jiang X, Chen Y, Wang S, Chao L, Jiang Z, He B, Xu C, Wang S, Tang B, Duan H, Wu Y. Potential inhibitory effects of compounds ZK-PI-5 and ZK-PI-9 on trehalose and chitin metabolism in Spodoptera frugiperda (J. E. Smith). Front Physiol 2023; 14:1178996. [PMID: 37064912 PMCID: PMC10090375 DOI: 10.3389/fphys.2023.1178996] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/21/2023] [Indexed: 03/31/2023] Open
Abstract
Introduction:Spodoptera frugiperda is an omnivorous agricultural pest which is great dangerous for grain output.Methods: In order to investigate the effects of potential trehalase inhibitors, ZK-PI-5 and ZK-PI-9, on the growth and development of S. frugiperda, and to identify new avenues for S. frugiperda control, we measured the content of the trehalose, glucose, glycogen and chitin, enzyme activity, and gene expression levels in trehalose and chitin metabolism of S. frugiperda. Besides, their growth and development were also observed.Results: The results showed that ZK-PI-9 significantly reduced trehalase activity and ZK-PI-5 significantly reduced membraned-bound trehalase activity. Moreover, ZK-PI-5 inhibited the expression of SfTRE2, SfCHS2, and SfCHT, thus affecting the chitin metabolism. In addition, the mortality of S. frugiperda in pupal stage and eclosion stage increased significantly after treatment with ZK-PI-5 and ZK-PI-9, which affected their development stage and caused death phenotype (abnormal pupation and difficulty in breaking pupa).Discussion: These results have provided a theoretical basis for the application of trehalase inhibitors in the control of agricultural pests to promote future global grain yield.
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Affiliation(s)
- Fan Zhong
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Liuhe Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Xinyi Jiang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Yan Chen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Sitong Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Lei Chao
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Zhiyang Jiang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Biner He
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Caidi Xu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Shigui Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Bin Tang, ; Hongxia Duan, ; Yan Wu,
| | - Hongxia Duan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
- *Correspondence: Bin Tang, ; Hongxia Duan, ; Yan Wu,
| | - Yan Wu
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, China
- *Correspondence: Bin Tang, ; Hongxia Duan, ; Yan Wu,
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Chen S, Feng T, Lin X, Hou Z, Chao L, Zhang X, Liu Y. Effects of microplastics and cadmium on the soil-wheat system as single and combined contaminants. Plant Physiol Biochem 2023; 196:291-301. [PMID: 36736011 DOI: 10.1016/j.plaphy.2023.01.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
Two types of microplastics (MPs) (micro polyethylene (mPE) and micro polypropylene (mPP)) were studied alongside and cadmium (Cd) to determine how they affected soil-wheat systems, both individually and in mixed combinations. This was accomplished by carrying out a pot experiment to reveal their respective interaction effects. Results showed that in different Cd pollution levels soils (0, 1, and 5 mg kg-1), chlorophyll concentrations in wheat leaves decreased markedly with rising levels of mPE/mPP. In the single mPE treatment, as the mPE content in the soil increased, the aboveground and root biomass improved. By contrast, in the single mPP treatment, when the mPP content was low, the aboveground biomass of wheat increased and with the mPP content increased, the aboveground biomass of wheat decreased. This result was also shown in the combined contamination of mPE/mPP and Cd (1 mg kg-1) in the root biomass. With an increase in Cd concentration (that is, at 5 mg kg-1) in the combined contamination, this phenomenon continued in the aboveground biomass while in the roots, there was a promotion effect. At Cd contaminated soil (1 mg kg-1), MPs inhibited Cd enrichment in aboveground wheat, but at 5 mg kg-1, Cd enrichment was promoted instead, in both aboveground and roots. Adding mPE/mPP diminished pH and the Cd effective state concentration in soil. The combined contamination of mPE/mPP and Cd affected the Cd biological enrichment in the wheat to some extent, which was influenced by the types of MP and pollution levels of Cd in the soil.
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Affiliation(s)
- Su Chen
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, PR China; Shenyang Jianzhu University, Shenyang, 110168, PR China.
| | - Tianzhen Feng
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, PR China
| | - Xiaonan Lin
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, PR China
| | - Ziyan Hou
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, PR China
| | - Lei Chao
- Shenyang Jianzhu University, Shenyang, 110168, PR China
| | - Xiaoying Zhang
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, PR China
| | - Ying Liu
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, PR China
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Young R, Muir T, Wang E, Chao L. Laparoscopic approach to a large 44cm adnexal mass. Am J Obstet Gynecol 2023. [DOI: 10.1016/j.ajog.2022.12.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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11
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Chen S, Feng T, Lin X, Hou Z, Chao L, Zhang X, Liu Y, Li J. Effect of Microplastics on the Adsorption and Desorption Properties of Cadmium in Soil. Bull Environ Contam Toxicol 2022; 110:33. [PMID: 36585986 DOI: 10.1007/s00128-022-03669-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
This study analyzed the role of micro polyethylene (mPE) and micro polypropylene (mPP) on cadmium (Cd) adsorption and desorption in soil. Cd adsorption in soils reached equilibrium within 240 min with or without mPP/mPE. The largest Cd adsorption amount was 923.88 mg kg-1 in the control treatment (no MPs). The Cd adsorption amount in the mPP treatment was 872.21 mg kg-1, greater than that in the mPE treatment (780.21 mg kg-1). MPs reduced the soil adsorption of Cd to some extent. Soils supplemented with mPE were more inhibitory to Cd adsorption than mPP. The pseudo-second-order model equation proved to be the most optimal equation for describing Cd adsorption dynamics in the presence of different MPs, while the Freundlich equation was best for describing isothermal adsorption of Cd in the presence of MPs. MPs facilitate the desorption of metals from the soil.
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Affiliation(s)
- Su Chen
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China.
- Shenyang Jianzhu University, Shenyang, 110168, People's Republic of China.
| | - Tianzhen Feng
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China
| | - Xiaonan Lin
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China
| | - Ziyan Hou
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China
| | - Lei Chao
- Shenyang Jianzhu University, Shenyang, 110168, People's Republic of China
| | - Xiaoying Zhang
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China
| | - Ying Liu
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China
| | - Jiaqi Li
- Key Laboratory of Regional Environment and Eco-Remediation, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China
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Muir T, Chao L. Laparoscopic Excision of Retroperitoneal Adnexal Cyst. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Sendukas E, Muir T, Negrete Vasquez O, Pruszynski J, Chao L. 8553 The Effect of Obesity on the Accuracy of Uterine Weight Estimation and Impact on Hysterectomy Outcomes. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Sendukas E, Allen R, Ford L, Wilson A, Xiao H, Chao L. Uterine Surgery and Risk of Adenomyosis: A Retrospective Study. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Lin E, Chao L. Navigating Cervical Fibroids during Laparoscopic Hysterectomy: Essential Tips and Tricks. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Kenyon L, Shields J, Porter A, Chen J, Chao L, Chang S, Kho K. Ice-Pop: Ice Packs for Post-Operative Pain, a Randomized Controlled Trial. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shao P, Peng Y, Wu Y, Wang J, Pan Z, Yang Y, Aini N, Guo C, Shui G, Chao L, Tian X, An Q, Yang Q, You C, Lu L, Zhang X, Wang M, Nie X. Genome-wide association study and transcriptome analysis reveal key genes controlling fruit branch angle in cotton. Front Plant Sci 2022; 13:988647. [PMID: 36212380 PMCID: PMC9532966 DOI: 10.3389/fpls.2022.988647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/22/2022] [Indexed: 06/16/2023]
Abstract
Fruit branch angle (FBA), a pivotal component of cotton plant architecture, is vital for field and mechanical harvesting. However, the molecular mechanism of FBA formation is poorly understood in cotton. To uncover the genetic basis for FBA formation in cotton, we performed a genome-wide association study (GWAS) of 163 cotton accessions with re-sequencing data. A total of 55 SNPs and 18 candidate genes were significantly associated with FBA trait. By combining GWAS and transcriptome analysis, four genes underlying FBA were identified. An FBA-associated candidate gene Ghi_A09G08736, which is homologous to SAUR46 in Arabidopsis thaliana, was detected in our study. In addition, transcriptomic evidence was provided to show that gravity and light were implicated in the FBA formation. This study provides new insights into the genetic architecture of FBA that informs architecture breeding in cotton.
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Affiliation(s)
- Panxia Shao
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Yabin Peng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yuanlong Wu
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Jing Wang
- College of Informatics, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Zhenyuan Pan
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Yang Yang
- Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
| | - Nurimanguli Aini
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Chunping Guo
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Guangling Shui
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Lei Chao
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Xiaomin Tian
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Qiushuang An
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Qingyong Yang
- College of Informatics, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Chunyuan You
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- Cotton Research Institute of the Shihezi Academy of Agriculture Science, Shihezi, Xinjiang, China
| | - Lu Lu
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Maojun Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xinhui Nie
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi, Xinjiang, China
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Chao L, Pan Z, Wang J, Wu Y, Shui G, Aini N, Tang B, Guo C, Han P, Shao P, Tian X, Chang X, An Q, Ma C, You C, Zhu L, Nie X. Genetic Mapping and Analysis of a Compact Plant Architecture and Precocious Mutant in Upland Cotton. Plants 2022; 11:plants11111483. [PMID: 35684255 PMCID: PMC9182648 DOI: 10.3390/plants11111483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/22/2022] [Accepted: 05/30/2022] [Indexed: 11/16/2022]
Abstract
With the promotion and popularization of machine cotton-picking, more and more attention has been paid to the selection of early-maturity varieties with compact plant architecture. The type of fruit branch is one of the most important factors affecting plant architecture and early maturity of cotton. Heredity analysis of the cotton fruit branch is beneficial to the breeding of machine-picked cotton. Phenotype analysis showed that the types of fruit branches in cotton are controlled by a single recessive gene. Using an F2 population crossed with Huaxin102 (normal branch) and 04N-11 (nulliplex branch), BSA (Bulked Segregant Analysis) resequencing analysis and GhNB gene cloning in 04N-11, and allelic testing, showed that fruit branch type was controlled by the GhNB gene, located on chromosome D07. Ghnb5, a new recessive genotype of GhNB, was found in 04N-11. Through candidate gene association analysis, SNP 20_15811516_SNV was found to be associated with plant architecture and early maturity in the Xinjiang natural population. The GhNB gene, which is related to early maturity and the plant architecture of cotton, is a branch-type gene of cotton. The 20_15811516_SNV marker, obtained from the Xinjiang natural population, was used for the assisted breeding of machine-picked cotton varieties.
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Affiliation(s)
- Lei Chao
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Zhenyuan Pan
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Jing Wang
- College of Informatics, Huazhong Agricultural University, Wuhan 430070, China;
| | - Yuanlong Wu
- National Key Laboratory of Crop Genetic Improvement, College of Plant Sciences & Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Guangling Shui
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Nurimanguli Aini
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Binghui Tang
- Cotton Research Institute of the Shihezi Academy of Agriculture Science, Shihezi 832011, China;
| | - Chunping Guo
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Peng Han
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Panxia Shao
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Xiaomin Tian
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Xinyi Chang
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Qiushuang An
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Chunmei Ma
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
| | - Chunyuan You
- National Key Laboratory of Crop Genetic Improvement, College of Plant Sciences & Technology, Huazhong Agricultural University, Wuhan 430070, China;
- Cotton Research Institute of the Shihezi Academy of Agriculture Science, Shihezi 832011, China;
- Correspondence: (C.Y.); (L.Z.); (X.N.)
| | - Longfu Zhu
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
- National Key Laboratory of Crop Genetic Improvement, College of Plant Sciences & Technology, Huazhong Agricultural University, Wuhan 430070, China;
- Correspondence: (C.Y.); (L.Z.); (X.N.)
| | - Xinhui Nie
- Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps, Agricultural College, Shihezi University, Shihezi 832003, China; (L.C.); (Z.P.); (G.S.); (N.A.); (C.G.); (P.H.); (P.S.); (X.T.); (X.C.); (Q.A.); (C.M.)
- Correspondence: (C.Y.); (L.Z.); (X.N.)
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Shields J, Kenyon L, Porter A, Chen J, Chao L, Chang S, Kho K. Ice-pop: ice packs for postoperative pain, a randomized controlled trial. Am J Obstet Gynecol 2022. [DOI: 10.1016/j.ajog.2021.12.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Wang EB, Sawyer P, Chao L. Laparoscopic Appendectomy: Surgical Techniques for the Benign Gynecologist. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Meng L, Zhao L, Liu W, Lian J, Chao L. Risk assessment of bioavailable heavy metals in the water and sediments in the Yongding New River, North China. Environ Monit Assess 2021; 193:589. [PMID: 34415414 DOI: 10.1007/s10661-021-09367-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
To explore the pollution status of heavy metals and potential risks in the Yongding New River of Tianjin, China, a comparative study of concentrations of heavy metals (Cd, Cr, Cu, Pb, Zn, As, and Hg) in surface sediments from submerged areas (SA), fluctuant flooded district (FFD), and non-flooded district (NFD) was conducted. In the present study, a modified three-stage European Community Bureau of Reference sequential extraction procedure and EDTA-Na2 single extraction were used to determine the heavy metal distribution in different sediment samples. Results showed that Cd was the metal with the highest contamination level compared to a background value of Tianjin soils, particularly in SA, followed by As. The concentrations of Cr, Pb, Cu, and Zn were relatively higher in upstream. Cu and Pb had higher bioavailability when compared with the other metals, indicating the two metals were easier to be mobilized. The Pearson correlation coefficient is applied to assess the degree of correlation between heavy metals. As, Cu, Zn, and Hg had the strong correlation, implying they may have common sources. Human activity in the riparian such as agricultural production, vehicle, and burning coal increased inputs of heavy metals in the surface sediments and influenced their distribution spatially. Besides, we also calculated geo-accumulation indexes (Igeo) and eco-risk index to assess the degree of risk of heavy metals in sediments. The Igeo were higher in SA than in FFD and NFD. Based on Igeo and potential eco-risk index, Cd has the highest risk, followed by As and Hg.
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Affiliation(s)
- Lingzuo Meng
- College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China
| | - Longfei Zhao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Weitao Liu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Jiapan Lian
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lei Chao
- College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China.
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Lian J, Liu W, Meng L, Wu J, Chao L, Zeb A, Sun Y. Foliar-applied polystyrene nanoplastics (PSNPs) reduce the growth and nutritional quality of lettuce (Lactuca sativa L.). Environ Pollut 2021; 280:116978. [PMID: 33780844 DOI: 10.1016/j.envpol.2021.116978] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/01/2021] [Accepted: 03/17/2021] [Indexed: 05/23/2023]
Abstract
Currently, there is a lack of information about the influence of foliar-applied nanoplastics on crop growth and nutritional quality. To fill the knowledge gap, soil-grown lettuces (Lactuca sativa L.) were foliar-exposed to polystyrene nanoplastics (PSNPs) at 0, 0.1 and 1 mg/L for one month. Foliar exposure to PSNPs significantly decreased the dry weight, height, and leaf area of lettuce by 14.3%-27.3%, 24.2%-27.3%, and 12.7%-19.2%, respectively, compared with the control. Similarly, plant pigment content (chlorophyll a, b and carotenoid) was considerably reduced (9.1%, 8.7%, 12.5%) at 1 mg/L PSNPs. However, the significant increase in electrolyte leakage rate (18.6%-25.5%) and the decrease in total antioxidant capacity (12.4%-26%) were the key indicators of oxidative stress in lettuce leaves, demonstrating the phytotoxicity of PSNPs by foliar exposure. In addition, the remarkable reduction in micronutrients and essential amino acids demonstrated a decrease in nutritional quality of lettuce caused by PSNPs. Besides, SEM and TEM analysis indicated the possible absorption of PSNPs through leaves stoma and the translocation downwards to plant roots. This study provides new information about the interaction of airborne NPs with plants. It also warns against atmospheric NPs pollution that the adverse effects of airborne NPs on crop production and food quality should be assessed as a matter of urgency.
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Affiliation(s)
- Jiapan Lian
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education (MOE)/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resources Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Weitao Liu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education (MOE)/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
| | - Lingzuo Meng
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education (MOE)/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, 110168, China
| | - Jiani Wu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education (MOE)/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Lei Chao
- College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, 110168, China
| | - Aurang Zeb
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education (MOE)/Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yuebing Sun
- Key Laboratory of Original Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
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Allen R, Chao L. Laparoscopic Ureterolysis in the Setting of Endometriosis. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Porter A, Chao L. Laparoscopic Approach to the Obliterated Anterior Cul-De-Sac. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yang Y, Qiu D, Liu Y, Chao L. Topical anesthetic analgesic therapy using the combination of ropivacaine and dexmedetomidine: hyaluronic acid modified long-acting nanostructured lipid carriers containing a skin penetration enhancer. Drug Des Devel Ther 2019; 13:3307-3319. [PMID: 31571832 PMCID: PMC6755955 DOI: 10.2147/dddt.s211443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022]
Abstract
Purpose Hyaluronic acid-poly(ethylene glycol)-distearoyl phosphoethanolamine (HA-PEG-DSPE) modified and tocopheryl polyethylene glycol 1000 succinate (TPGS) contained nanostructured lipid carriers (NLCs) were prepared loading ropivacaine and dexmedetomidine to improve the topical anesthetic analgesic anesthesia efficiency. Methods NLCs were prepared by the solvent diffusion method. The average particle size, zeta potential, release behavior, and cytotoxicity of the NLCs were tested. Ex vivo skin permeation was studied using a Franz diffusion cell mounted with depilated rat skin. Local anesthesia antinociceptive efficiency was evaluated by rat tail flick latency study in vivo. Results NLCs have sizes of about 100 nm, with negative zeta potentials. All the NLCs formulations were found to be significantly less cytotoxic than free drugs at equivalent concentrations. The cumulative amount of drugs penetrated through rat skin from NLCs was 2.0–4.7 folds higher than that of the drugs solution. The in vivo anesthesia antinociception study displayed that NLCs showed stronger and longer anesthesia antinociceptive effect when compared with single drugs loaded NLCs and drugs solution even at a lower dosage of drugs. Conclusion The results demonstrated that the HA modified, TPGS contained, dual drugs loaded NLCs could perform a synergistic effect and may reduce the amount of drugs, which can lower the toxicity of the system and at the meanwhile, increase the anesthesia antinociceptive efficiency.
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Affiliation(s)
- Yongjian Yang
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
| | - Dahai Qiu
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
| | - Yajun Liu
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
| | - Lei Chao
- Department of Anesthesiology, Jinan Central Hospital Affiliated to Shandong University, Ji'nan, Shandong Province 250013, People's Republic of China
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Mariano C, Jamal R, Bains P, Hejazi S, Chao L, Wan J, Ho J. Utility of a chemotherapy toxicity prediction tool for older patients in a community setting. ACTA ACUST UNITED AC 2019; 26:234-239. [PMID: 31548802 DOI: 10.3747/co.26.4869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background Expert groups have recommended incorporation of a geriatric assessment into clinical practice for older patients starting oncologic therapy. However, that practice is not standard primarily because of resource limitations. In the present study, we evaluated the effect on treatment decisions by oncologists in the community oncology setting of a brief geriatric assessment tool that estimates risk of toxicity. Methods This prospective longitudinal study in 5 community oncology practices in British Columbia involved patients 70 years of age and older starting a new cytotoxic chemotherapy regimen. Clinical personnel completed a brief validated geriatric assessment tool-the Cancer and Aging Research Group chemotherapy toxicity tool (carg-tt)-that estimates the risk of grade 3 or greater toxicity in older patients. Physicians were asked if the carg-tt changed their treatment plan or prompted extra supports. Patients were followed to assess the incidence of toxicity during treatment. Results The study enrolled 199 patients between July 2016 and February 2018. Mean age was 77 years. Treatment was palliative in 61.4% of the group. Compared with physician judgment, the carg-tt predicted higher rates of toxicity. In 5 patients, treatment was changed based on the carg-tt. In 38.5% of the patients, data from the tool prompted extra supports. Within the first 3 cycles of treatment, 21.3% of patients had experienced grade 3 or greater toxicity. Conclusions This study demonstrates that use of a brief geriatric assessment tool is possible in a broad community oncology practice. The tool modified the oncologist's supportive care plan for a significant number of older patients undertaking cytotoxic chemotherapy.
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Affiliation(s)
- C Mariano
- Department of Medicine and Medical Oncology, Royal Columbian Hospital, New Westminster, BC
| | - R Jamal
- University of British Columbia, Vancouver, BC
| | - P Bains
- Department of Medicine and Medical Oncology, Lions Gate Hospital, North Vancouver, BC
| | - S Hejazi
- Department of Evaluation and Research Services, Fraser Health Authority, Surrey, BC
| | - L Chao
- Department of Medicine and Medical Oncology, Lions Gate Hospital, Richmond, BC
| | - J Wan
- Department of Pharmacy, Royal Columbian Hospital, New Westminster, BC
| | - J Ho
- Department of Medicine and Medical Oncology, Lions Gate Hospital, Richmond, BC
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Zhang K, Chao L, Zhou J. Biocompatible/Biodegradable Electrowetting on Dielectric Microfluidic Chips with Fluorinated CTA/PLGA. Materials (Basel) 2018; 11:E1332. [PMID: 30071631 PMCID: PMC6120052 DOI: 10.3390/ma11081332] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/26/2018] [Accepted: 07/30/2018] [Indexed: 12/02/2022]
Abstract
One of the major hurdles in the development of biocompatible/biodegradable EWOD (Electrowetting-on-dielectric) devices is the biocompatibility of the dielectric and hydrophobic layers. In this study, we address this problem by using reactive ion etching (RIE) to prepare a super-hydrophobic film combining fluorinated cellulose triacetate (CTA) and poly (lactic-co-glycolic acid) (PLGA). The contact angle (CA) of water droplets on the proposed material is about 160°. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) characterizations indicate that a slight increase in the surface roughness and the formation of CFx (C-F or CF₂) bonds are responsible for the super-hydrophobic nature of the film. Alternating Current (AC) static electrowetting and droplet transportation experiments evidence that contact angle hysteresis and contact line pinning are greatly reduced by impregnating the CTA/PLGA film with silicon oil. Therefore, this improved film could provide a biocompatible alternative to the typical Teflon® or Cytop® films as a dielectric and hydrophobic layer.
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Affiliation(s)
- Kaidi Zhang
- ASIC and System State Key Lab, School of Microelectronics, Fudan University, Shanghai 200433, China.
| | - Lei Chao
- ASIC and System State Key Lab, School of Microelectronics, Fudan University, Shanghai 200433, China.
| | - Jia Zhou
- ASIC and System State Key Lab, School of Microelectronics, Fudan University, Shanghai 200433, China.
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Chao L, Rindos N, Mansuria S. 43: Perforated IUDS: Diagnosis and management. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2017.12.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chao L, Lee T. Partial Vaginectomy for Excision of Rectovaginal Endometriosis. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chao L, Rindos N, Mansuria S. Laparoscopic Management of Perforated IUDs. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Eser A, Renan H, Chao L, Jiang B, Heintze S. Simulation of development of internal stresses within zirconia FPD's. Dent Mater 2017. [DOI: 10.1016/j.dental.2017.08.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chao L, Qin Y, Liu Y, Kong Y, Chu F. Electrochemically exfoliating graphite into N-doped graphene and its use as a high efficient electrocatalyst for oxygen reduction reaction. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3480-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Chao L, Rindos N, Mansuria S. Laparoscopic Excision of an Abdominal Wall Fibroid. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chao L, Gor V, Murrell D, Kim M, O’Toole E, Ly A, Woodley D, Wysong A, Chen M. 421 Over-expression of periostin is associated with clinical outcomes and poor prognosis in cutaneous squamous cell carcinoma. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Qin Y, Chao L, Yuan J, Liu Y, Chu F, Kong Y, Tao Y, Liu M. Ultrafine Pt nanoparticle-decorated robust 3D N-doped porous graphene as an enhanced electrocatalyst for methanol oxidation. Chem Commun (Camb) 2016; 52:382-5. [DOI: 10.1039/c5cc07482g] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pt nanoparticles with an average diameter of 3 nm are loaded on a robust 3D N-doped graphene crosslinked with covalent bonds. The resulting composite material exhibits remarkable electrocatalytic activity and long-term stability toward methanol oxidation.
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Affiliation(s)
- Yong Qin
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Lei Chao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Jie Yuan
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Yang Liu
- Institute of Biomedical Engineering and Health Science
- Changzhou University
- Changzhou
- China
| | - Fuqiang Chu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Yong Kong
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Yongxin Tao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Meilin Liu
- School of Materials and Engineering
- Georgia Institute of Technology
- Atlanta
- USA
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Chao L, McCarthy HD. 9 Is there an association between dietary protein intake, nordic walking exercise, and sarcopenia risk factors? Br J Sports Med 2015. [DOI: 10.1136/bjsports-2015-095576.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Paulson J, Samuelson K, Neylan T, Chao L, Weiner M, O'Donovan A. NEUROPSYCHOLOGICAL DOMAINS: MEMORY AND AMNESIAA-94Decreased Delayed Verbal Recall in current, but not Past, PTSD. Arch Clin Neuropsychol 2015. [DOI: 10.1093/arclin/acv047.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhao J, Zhao X, Chao L, Zhang W, You T, Zhang J. Diversity change of microbial communities responding to zinc and arsenic pollution in a river of northeastern China. J Zhejiang Univ Sci B 2015; 15:670-80. [PMID: 25001226 DOI: 10.1631/jzus.b1400003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Pollution discharge disturbs the natural functions of water systems. The environmental microbial community composition and diversity are sensitive key indicators to the impact of water pollutant on the microbial ecology system over time. It is meaningful to develop a way to identify the microbial diversity related to heavy metal effects in evaluating river pollution. Water and sediment samples were collected from eight sections along the Tiaozi River where wastewater and sewage were discharged from Siping City in northeastern China. The main pollutants contents and microbial communities were analyzed. As the primary metal pollutants, zinc (Zn) and arsenic (As) were recorded at the maximum concentrations of 420 and 5.72 μg/L in the water, and 1704 and 1.92 mg/kg in the sediment, respectively. These pollutants posed a threat to the microbial community diversity as only a few species of bacteria and eukaryotes with strong resistance were detected through denaturing gradient gel electrophoresis (DGGE). Acinetobacter johnsonii, Clostridium cellulovorans, and Trichococcus pasteurii were the dominant bacteria in the severely polluted areas. The massive reproduction of Limnodrilus hoffmeisteri almost depleted the dissolved oxygen (DO) and resulted in the decline of the aerobic bacteria. It was noted that the pollution reduced the microbial diversity but the L. hoffmeisteri mass increased as the dominant community, which led to the overconsuming of DO and anaerobic stinking water bodies. Water quality, concentrations of heavy metals, and the spatial distribution of microbial populations have obvious consistencies, which mean that the heavy metals in the river pose a serious stress on the microorganisms.
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Affiliation(s)
- Jun Zhao
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China; Liaoning Academy of Environmental Sciences, Shenyang 110161, China; College of Resource & Civil Engineering, Northeastern University, Shenyang 110004, China
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Garrido G, Rabasa A, Garrido C, López A, Chao L, García-Lora AM, Garrido F, Fernández LE, Sánchez B. Preclinical modeling of EGFR-specific antibody resistance: oncogenic and immune-associated escape mechanisms. Oncogene 2013; 33:3129-39. [PMID: 23975426 DOI: 10.1038/onc.2013.288] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 05/29/2013] [Accepted: 05/31/2013] [Indexed: 12/15/2022]
Abstract
To define the molecular basis of secondary resistance to epidermal growth factor receptor (EGFR)-specific antibodies is crucial to increase clinical benefit in patients. The limited access to posttreatment tumor samples constitutes the major barrier to conduct these studies, representing preclinical experimentation as a useful alternative. Anti-EGFR antibody-based therapy has been reported to mediate tumor regression by interrupting oncogenic signals and, more recently, by inducing antitumor immunological responses. However, resistance models have been focused only on tumor escape associated with EGFR blockade, whereas studies describing immune-associated escape mechanisms have not been reported thus far. To address this idea, we modeled resistance induction in D122 metastasis-bearing C57BL/6 mice treated with 7A7 (an anti-murine EGFR antibody). Similarly to patients receiving EGFR-specific antibodies, 7A7 resistance promotion represents an important drawback to successful therapy. Characterization of primary cultures derived from metastasis in 7A7-treated mice revealed a high frequency of tumor variants resistant to in vivo and in vitro antibody treatment. We showed, for the first time, the convergence of alterations in oncogenic and immunological pathways in 7A7-resistant variants. To identify key molecules behind resistance, seven 7A7-resistant variants were screened. HER3 overexpression and PTEN deficiency leading to hyperactivation of protumoral downstream signaling were found in these variants as a consequence of 7A7-mediated EGFR inhibition. Concomitantly, we found a high percentage of resistant variants carrying abnormalities in the constitutive and/or interferon gamma (IFN-γ)-inducible major histocompatibility complex I (MHC-I) expression. A significant decrease in mRNA levels for MHC-I heavy chains, β2-microglogulin and antigen processing machinery genes as well as transcriptional alterations in IFN-γ pathway components were identified as the main mechanisms underlying MHC-I expression defects in 7A7-resistant variants. Notably, these defects have not been previously associated with EGFR-specific antibody resistance, providing novel immunological escape mechanisms. This study has strong implications for the development of new combination strategies to overcome anti-EGFR antibodies refractoriness.
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Affiliation(s)
- G Garrido
- Tumor Immunology Direction, Molecular Immunology Institute, Center of Molecular Immunology, Havana, Cuba
| | - A Rabasa
- Tumor Immunology Direction, Molecular Immunology Institute, Center of Molecular Immunology, Havana, Cuba
| | - C Garrido
- 1] Department of Analisis Clinicos and Inmunologia, Hospital Universitario VirgenNieves, Granada, Spain [2] Departament of Bioquímica, Biología Molecular III e Inmunologia, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - A López
- System Biology Direction, Molecular Immunology Institute, Center of Molecular Immunology, Havana, Cuba
| | - L Chao
- Tumor Immunology Direction, Molecular Immunology Institute, Center of Molecular Immunology, Havana, Cuba
| | - A M García-Lora
- Department of Analisis Clinicos and Inmunologia, Hospital Universitario VirgenNieves, Granada, Spain
| | - F Garrido
- 1] Department of Analisis Clinicos and Inmunologia, Hospital Universitario VirgenNieves, Granada, Spain [2] Departament of Bioquímica, Biología Molecular III e Inmunologia, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - L E Fernández
- Innovative Direction, Molecular Immunology Institute, Center of Molecular Immunology, Havana, Cuba
| | - B Sánchez
- Tumor Immunology Direction, Molecular Immunology Institute, Center of Molecular Immunology, Havana, Cuba
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Chen S, Chao L, Sun L, Sun T. Effects of bacteria on cadmium bioaccumulation in the cadmium hyperaccumulator plant Beta vulgaris var. cicla L. Int J Phytoremediation 2013; 15:477-487. [PMID: 23488173 DOI: 10.1080/15226514.2012.716100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
To investigate the effects of two cadmium-tolerant bacteria, Staphylococcus pasteuri (S. pasteuri X1) and Agrobacterium tumefaciens (A. tumefaciens X2), on cadmium uptake by the cadmium hyperaccumulator plant Beta vulgaris var. cicla L., a pot experiment with artificially contaminated soil was conducted. The results demonstrated that both cadmium-tolerant bacteria enhanced the dry weight of Beta vulgaris var. cicla L. The total dry weights of plants in the control CK20, S. pasteuri X1 and A. tumefaciens X2 treatments were 0.85, 1.13, and 1.38 g/pot, respectively. Compared with the control CK20 findings, the total dry weight of plants was increased by 32.8 and 61.1% after inoculation with S. pasteuri X1 and A. tumefaciens X2, respectively, indicating that A. tumefaciens X2 more strongly promoted the growth of Beta vulgaris var. cicla L. than S. pasteuri X1. In addition, inoculation with S. pasteuri X1 and A. tumefaciens X2 significantly (p < 0.05) promoted cadmium uptake by plants and improved the bioaccumulation of cadmium by the plants from the soil. Moreover, the inoculation of S. pasteuri X1 and A. tumefaciens X2 effectively facilitated the transfer of cadmium in the soil from the Fe-Mn oxide and residual fractions to the soluble plus exchangeable and weakly specially adsorbed fractions in the rhizosphere soils of plants. The bacterial enhancement of cadmium phytoavailability might provide a potential and promising method to increase the efficiency of phytoextraction.
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Affiliation(s)
- Su Chen
- Key Laboratory of Production environment and Agro-product Safety of Ministry of Agriculture and Tianjin Key Laboratory of Agro-environment and Food Safety, Tianjin, China.
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Tartaglia MC, Zhang Y, Racine C, Laluz V, Neuhaus J, Chao L, Kramer J, Rosen H, Miller B, Weiner M. Executive dysfunction in frontotemporal dementia is related to abnormalities in frontal white matter tracts. J Neurol 2011; 259:1071-80. [PMID: 22037958 DOI: 10.1007/s00415-011-6300-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Revised: 10/17/2011] [Accepted: 10/19/2011] [Indexed: 11/26/2022]
Abstract
Cognitive deficits in behavioral-variant frontotemporal dementia (bvFTD) and AD are linked to frontal and temporal lobe gray matter (GM) pathology. The aim of this study was to assess the relative contribution of white (WM) and GM abnormalities to cognitive dysfunction in bvFTD and AD. Fractional anisotropy (FA) for the corpus callosum, cingulum (Cg), and uncinate fasciculus (Unc) was determined in 17 bvFTD and 10 AD patients who underwent neuropsychological testing. Regressions were performed to assess the relative contribution of WM and GM abnormalities to cognitive deficits. Multiple regression analysis revealed that in bvFTD, the left anterior Cg FA was related to executive function, the right anterior Cg FA to visual-spatial attention and working memory, the right posterior Cg to visual-constructional abilities and the left Unc FA to Modified Trails Errors. After adding corresponding GM volumes, the left anterior Cg FA, the right anterior cingulate FA, the right posterior cingulate FA and the left uncinate FA remained significant predictors of the cognitive tasks. In the AD group, the left posterior Cg FA and right descending Cg FA were related to visual recall performance but did not remain significant predictors when GM volumes were added to the regression. These results suggest that reduced integrity of specific WM tracts contribute to cognitive deficits observed in bvFTD after accounting for GM atrophy. In AD, memory impairment was related to WM tract injury but this relationship was no longer observed when GM volumes were included.
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Affiliation(s)
- M C Tartaglia
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA.
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Fallows R, McCoy K, Hertza J, Klosson E, Estes B, Stroescu I, Salinas C, Stringer A, Aronson S, MacAllister W, Spurgin A, Morriss M, Glasier P, Stavinoha P, Houshyarnejad A, Jacobus J, Norman M, Peery S, Mattingly M, Pennuto T, Anderson-Hanley C, Miele A, Dunnam M, Edwards M, O'Bryant S, Johnson L, Barber R, Inscore A, Kegel J, Kozlovsky A, Tarantino B, Goldberg A, Herrera-Pino J, Jubiz-Bassi N, Rashid K, Noniyeva Y, Vo K, Stephens V, Gomez R, Sanders C, Kovacs M, Walton B, Schmitter-Edgecombe M, Schmitter-Edgecombe M, Parsey C, Cook D, Woods S, Weinborn M, Velnoweth A, Rooney A, Bucks R, Adalio C, White S, Blair J, Barber B, Marcy S, Barber B, Marcy S, Boseck J, McCormick C, Davis A, Berry K, Koehn E, Tiberi N, Gelder B, Brooks B, Sherman E, Garcia M, Robillard R, Gunner J, Miele A, Lynch J, McCaffrey R, Hamilton J, Froming K, Nemeth D, Steger A, Lebby P, Harrison J, Mounoutoua A, Preiss J, Brimager A, Gates E, Chang J, Cisneros H, Long J, Petrauskas V, Casey J, Picard E, Long J, Petrauskas V, Casey J, Picard E, Miele A, Gunner J, Lynch J, McCaffrey R, Rodriguez M, Fonseca F, Golden C, Davis J, Wall J, DeRight J, Jorgensen R, Lewandowski L, Ortigue S, Etherton J, Axelrod B, Green C, Snead H, Semrud-Clikeman M, Kirk J, Connery A, Kirkwood M, Hanson ML, Fazio R, Denney R, Myers W, McGuire A, Tree H, Waldron-Perrine B, Goldenring Fine J, Spencer R, Pangilinan P, Bieliauskas L, Na S, Waldron-Perrine B, Tree H, Spencer R, Pangilinan P, Bieliauskas L, Peck C, Bledsoe J, Schroeder R, Boatwright B, Heinrichs R, Baade L, Rohling M, Hill B, Ploetz D, Womble M, Shenesey J, Schroeder R, Semrud-Clikeman M, Baade L, VonDran E, Webster B, Brockman C, Burgess A, Heinrichs R, Schroeder R, Baade L, VonDran E, Webster B, Goldenring Fine J, Brockman C, Heinrichs R, Schroeder R, Baade L, VonDran E, Webster B, Brockman C, Heinrichs R, Schroeder R, Baade L, Bledsoe J, VonDran E, Webster B, Brockman C, Heinrichs R, Schroeder R, Baade L, VonDran E, Webster B, Brockman C, Heinrichs R, Thaler N, Strauss G, White T, Gold J, Tree H, Waldron-Perrine B, Spencer R, McGuire A, Na S, Pangilinan P, Bieliauskas L, Allen D, Vincent A, Roebuck-Spencer T, Cooper D, Bowles A, Gilliland K, Watts A, Ahmed F, Miller L, Yon A, Gordon B, Bello D, Bennett T, Yon A, Gordon B, Bennett T, Wood N, Etcoff L, Thede L, Oraker J, Gibson F, Stanford L, Gray S, Vroman L, Semrud-Clikeman M, Taylor T, Seydel K, Bure-Reyes A, Stewart J, Tourgeman I, Demsky Y, Golden C, Burns W, Gray S, Burns K, Calderon C, Tourgeman I, Golden C, Neblina C, San Miguel Montes L, Allen D, Strutt A, Scott B, Strutt A, Scott B, Armstrong P, Booth C, Blackstone K, Moore D, Gouaux B, Ellis R, Atkinson J, Grant I, Brennan L, Schultheis M, Hurtig H, Weintraub D, Duda J, Moberg P, Chute D, Siderowf A, Brescian N, Gass C, Brewster R, King T, Morris R, Krawiecki N, Dinishak D, Richardson G, Estes B, Knight M, Hertza J, Fallows R, McCoy K, Garcia S, Strain G, Devlin M, Cohen R, Paul R, Crosby R, Mitchell J, Gunstad J, Hancock L, Bruce J, Roberg B, Lynch S, Hertza J, Klosson E, Varnadore E, Schiff W, Estes B, Hertza J, Varnadore E, Estes B, Kaufman R, Rinehardt E, Schoenberg M, Mattingly M, Rosado Y, Velamuri S, LeBlanc M, Pimental P, Lynch-Chee S, Broshek D, Lyons P, McKeever J, Morse C, Ang J, Leist T, Tracy J, Schultheis M, Morgan E, Woods S, Rooney A, Perry W, Grant I, Letendre S, Morse C, McKeever J, Schultheis M, Musso M, Jones G, Hill B, Proto D, Barker A, Gouvier W, Nersesova K, Drexler M, Cherkasova E, Sakamoto M, Marcotte T, Hilsabeck R, Perry W, Carlson M, Barakat F, Hassanein T, Shevchik K, McCaw W, Schrock B, Smith M, Moser D, Mills J, Epping E, Paulsen J, Somogie M, Bruce J, Bryan F, Buscher L, Tyrer J, Stabler A, Thelen J, Lovelace C, Spurgin A, Graves D, Greenberg B, Harder L, Szczebak M, Glisky M, Thelen J, Lynch S, Hancock L, Bruce J, Ukueberuwa D, Arnett P, Vahter L, Ennok M, Pall K, Gross-Paju K, Vargas G, Medaglia J, Chiaravalloti N, Zakrzewski C, Hillary F, Andrews A, Golden C, Belloni K, Nicewander J, Miller D, Johnson S, David Z, Weideman E, Lawson D, Currier E, Morton J, Robinson J, Musso M, Hill B, Barker A, Pella R, Jones G, Proto D, Gouvier W, Vertinski M, Allen D, Thaler N, Heisler D, Park B, Barney S, Kucukboyaci N, Girard H, Kemmotsu N, Cheng C, Kuperman J, McDonald C, Carroll C, Odland A, Miller L, Mittenberg W, Coalson D, Wahlstrom D, Raiford S, Holdnack J, Ennok M, Vahter L, Gardner E, Dasher N, Fowler B, Vik P, Grajewski M, Lamar M, Penney D, Davis R, Korthauer L, Libon D, Kumar A, Holdnack J, Iverson G, Chelune G, Hunter C, Zimmerman E, Klein R, Prathiba N, Hopewell A, Cooper D, Kennedy J, Long M, Moses J, Lutz J, Tiberi N, Dean R, Miller J, Axelrod B, Van Dyke S, Rapport L, Schutte C, Hanks R, Pella R, Fallows R, McCoy K, O'Rourke J, Hilsabeck R, Petrauskas V, Bowden S, Romero R, Hulkonen R, Boivin M, Bangirana P, John C, Shapiro E, Slonaker A, Pass L, Smigielski J, Biernacka J, Geske J, Hall-Flavin D, Loukianova L, Schneekloth T, Abulseoud O, Mrazek D, Karpyak V, Terranova J, Safko E, Heisler D, Thaler N, Allen D, Van Dyke S, Axelrod B, Zink D, Puente A, Ames H, LePage J, Carroll C, Knee K, Mittenberg W, Cummings T, Webbe F, Shepherd E, Marcinak J, Diaz-Santos M, Seichepine D, Sullivan K, Neargarder S, Cronin-Golomb A, Franchow E, Suchy Y, Kraybill M, Holland A, Newton S, Hinson D, Smith A, Coe M, Carmona J, Harrison D, Hyer L, Atkinson M, Dalibwala J, Yeager C, Hyer L, Scott C, Atkinson M, Yeager C, Jacobson K, Olson K, Pella R, Fallows R, McCoy K, O'Rourke J, Hilsabeck R, Rosado Y, Kaufman R, Velamuri S, Rinehardt E, Mattingly M, Sartori A, Clay O, Ovalle F, Rothman R, Crowe M, Schmid A, Horne L, Horn G, Johnson-Markve B, Gorman P, Stewart J, Bure-Reyes A, Golden C, Tam J, McAlister C, Schmitter-Edgecombe M, Wagner M, Brenner L, Walker A, Armstrong L, Inman E, Grimmett J, Gray S, Cornelius A, Hertza J, Klosson E, Varnadore E, Schiff W, Estes B, Johnson L, Willingham M, Restrepo L, Bolanos J, Patel F, Golden C, Rice J, Dougherty M, Golden C, Sharma V, Martin P, Golden C, Bradley E, Dinishak D, Lockwood C, Poole J, Brickell T, Lange R, French L, Chao L, Klein S, Dunnam M, Miele A, Warner G, Donnelly K, Donnelly J, Kittleson J, Bradshaw C, Alt M, England D, Denney R, Meyers J, Evans J, Lynch-Chee S, Kennedy C, Moore J, Fedor A, Spitznagel M, Gunstad J, Ferland M, Guerrero NK, Davidson P, Collins B, Marshall S, Herrera-Pino J, Samper G, Ibarra S, Parrott D, Steffen F, Backhaus S, Karver C, Wade S, Taylor H, Brown T, Kirkwood M, Stancin T, Krishnan K, Culver C, Arenivas A, Bosworth C, Shokri-Kojori E, Diaz-Arrastia R, Marquez de la PC, Lange R, Ivins B, Marshall K, Schwab K, Parkinson G, Iverson G, Bhagwat A, French L, Lichtenstein J, Adams-Deutsch Z, Fleischer J, Goldberg K, Lichtenstein J, Adams-Deutsch Z, Fleischer J, Goldberg K, Lichtenstein J, Fleischer J, Goldberg K, Lockwood C, Ehrler M, Hull A, Bradley E, Sullivan C, Poole J, Lockwood C, Sullivan C, Hull A, Bradley E, Ehrler M, Poole J, Marcinak J, Schuster D, Al-Khalil K, Webbe F, Myers A, Ireland S, Simco E, Carroll C, Mittenberg W, Palmer E, Poole J, Bradley E, Dinishak D, Piecora K, Marcinak J, Al-Khalil K, Mroczek N, Schuster D, Snyder A, Rabinowitz A, Arnett P, Schatz P, Cameron N, Stolberg P, Hart J, Jones W, Mayfield J, Allen D, Sullivan K, Edmed S, Vanderploeg R, Silva M, Vaughan C, McGuire E, Gerst E, Fricke S, VanMeter J, Newman J, Gioia G, Vaughan C, VanMeter J, McGuire E, Gioia G, Newman J, Gerst E, Fricke S, Wahlberg A, Zelonis S, Chatterjee A, Smith S, Whipple E, Mace L, Manning K, Ang J, Schultheis M, Wilk J, Herrell R, Hoge C, Zakzanis K, Yu S, Jeffay E, Zimmer A, Webbe F, Piecora K, Schuster D, Zimmer A, Piecora K, Schuster D, Webbe F, Adler M, Holster J, Golden C, Andrews A, Schleicher-Dilks S, Golden C, Arffa S, Thornton J, Arffa S, Thornton J, Arffa S, Thornton J, Arffa S, Thornton J, Canas A, Sevadjian C, Fournier A, Miller D, Maricle D, Donders J, Larsen T, Gidley Larson J, Sheehan J, Suchy Y, Higgins K, Rolin S, Dunham K, Akeson S, Horton A, Reynolds C, Horton A, Reynolds C, Jordan L, Gonzalez S, Heaton S, McAlister C, Tam J, Schmitter-Edgecombe M, Olivier T, West S, Golden C, Prinzi L, Martin P, Robbins J, Bruzinski B, Golden C, Riccio C, Blakely A, Yoon M, Reynolds C, Robbins J, Prinzi L, Martin P, Golden C, Schleicher-Dilks S, Andrews A, Adler M, Pearlson J, Golden C, Sevadjian C, Canas A, Fournier A, Miller D, Maricle D, Sheehan J, Gidley LJ, Suchy Y, Sherman E, Carlson H, Gaxiola-Valdez I, Wei X, Beaulieu C, Hader W, Brooks B, Kirton A, Barlow K, Hrabok M, Mohamed I, Wiebe S, Smith K, Ailion A, Ivanisevic M, King T, Smith K, King T, Thorgusen S, Bowman D, Suchy Y, Walsh K, Mitchell F, Jill G, Iris P, Ross K, Madan-Swain A, Gioia G, Isquith P, Webber D, DeFilippis N, Collins M, Hill F, Weber R, Johnson A, Wiley C, Zimmerman E, Burns T, DeFilippis N, Ritchie D, Odland A, Stevens A, Mittenberg W, Hartlage L, Williams B, Weidemann E, Demakis G, Avila J, Razani J, Burkhart S, Adams W, Edwards M, O'Bryant S, Hall J, Johnson L, Grammas P, Gong G, Hargrave K, Mattevada S, Barber R, Hall J, Vo H, Johnson L, Barber R, O'Bryant S, Hill B, Davis J, O'Connor K, Musso M, Rehm-Hamilton T, Ploetz D, Rohling M, Rodriguez M, Potter E, Loewenstein D, Duara R, Golden C, Velamuri S, Rinehardt E, Schoenberg M, Mattingly M, Kaufman R, Rosado Y, Boseck J, Tiberi N, McCormick C, Davis A, Hernandez Finch M, Gelder B, Cannon M, McGregor S, Reitman D, Rey J, Scarisbrick D, Holdnack J, Iverson G, Thaler N, Bello D, Whoolery H, Etcoff L, Vekaria P, Whittington L, Nemeth D, Gremillion A, Olivier T, Amirthavasagam S, Jeffay E, Zakzanis K, Barney S, Umuhoza D, Strauss G, Knatz-Bello D, Allen D, Bolanos J, Bell J, Restrepo L, Frisch D, Golden C, Hartlage L, Williams B, Iverson G, McIntosh D, Kjernisted K, Young A, Kiely T, Tai C, Gomez R, Schatzberg A, Keller J, Rhodes E, Ajilore O, Zhang A, Kumar A, Lamar M, Ringdahl E, Sutton G, Turner A, Snyder J, Allen D, Verbiest R, Thaler N, Strauss G, Allen D, Walkenhorst E, Crowe S, August-Fedio A, Sexton J, Cummings S, Brown K, Fedio P, Grigorovich A, Fish J, Gomez M, Leach L, Lloyd H, Nichols M, Goldberg M, Novakovic-Agopian T, Chen A, Abrams G, Rossi A, Binder D, Muir J, Carlin G, Murphy M, McKim R, Fitsimmons R, D'Esposito M, Shevchik K, McCaw W, Schrock B, Vernon A, Frank R, Ona PZ, Freitag E, Weber E, Woods S, Kellogg E, Grant I, Basso M, Dyer B, Daniel M, Michael P, Fontanetta R, Martin P, Golden C, Gass C, Stripling A, Odland A, Holster J, Corsun-Ascher C, Olivier T, Golden C, Legaretta M, Vik P, Van Ness E, Fowler B, Noll K, Denney D, Wiechman A, Stephanie T, Greenberg B, Lacritz L, Padua M, Sandhu K, Moses J, Sordahl J, Anderson J, Wheaton V, Anderson J, Berggren K, Cheung D, Luber H, Loftis J, Huckans M, Bennett T, Dawson C, Soper H, Bennett T, Soper H, Carter K, Hester A, Ringe W, Spence J, Posamentier M, Hart J, Haley R, Fallows R, Pella R, McCoy K, O'Rourke J, Hilsabeck R, Fallows R, Pella R, McCoy K, O'Rourke J, Hilsabeck R, Gass C, Curiel R, Gass C, Stripling A, Odland A, Goldberg M, Lloyd H, Gremillion A, Nemeth D, Whittington L, Hu E, Vik P, Dasher N, Fowler B, Jeffay E, Zakzanis K, Jordan S, DeFilippis N, Collins M, Goetsch V, Small S, Mansoor Y, Homer-Smith E, Lockwood C, Moses J, Martin P, Odland A, Fontanetta R, Sharma V, Golden C, Odland A, Martin P, Perle J, Gass C, Simco E, Mittenberg W, Patt V, Minassian A, Perry W, Polott S, Webbe F, Mulligan K, Shaneyfelt K, Wall J, Thompson J, Tai C, Kiely T, Compono V, Trettin L, Gomez R, Schatzberg A, Keller J, Tsou J, Pearlson J, Sharma V, Tourgeman I, Golden C, Waldron-Perrine B, Tree H, Spencer R, McGuire A, Na S, Pangilinan P, Bieliauskas L, You S, Moses J, An K, Jeffay E, Zakzanis K, Biddle C, Fazio R, Willett K, Rolin S, O'Grady M, Denney R, Bresnan K, Erlanger D, Seegmiller R, Kaushik T, Brooks B, Krol A, Carlson H, Sherman E, Davis J, McHugh T, Axelrod B, Hanks R. Grand Rounds. Arch Clin Neuropsychol 2011. [DOI: 10.1093/arclin/acr056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chen S, Sun LN, Sun TH, Chao L, Sun WK, Lou Y. [Ecotoxicity of synthetical musks on wheat (Triticum aestivum) based on seed germination]. Huan Jing Ke Xue 2011; 32:1477-1481. [PMID: 21780608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With soil culture the ecotoxicological effects of galaxolide (HHCB) and tonalide (AHTN) on the germination of wheat (Triticum aestivum) seeds were investigated. And the influence of these two synthetical musks on the wheat germination rate, inhibition rate of root elongation and inhibition rate of shoot elongation were studied. The results showed that there were no obvious dose-effect relationship between wheat germination rate and concentrations of these two synthetical musks. Lower dose (HHCB < or = 150 mg x kg(-1), AHTN < or = 200 mg x kg(-1)) could accelerate the germination of wheat. Under the test concentrations of synthetical musks, the wheat germination rates treated with HHCB and AHTN were 77.78%-95.56% and 84.44%-97.78%, respectively. There were good dose-effect relationship between inhibition rate of root elongation (or inhibition rate of shoot elongation) and synthetical musks concentrations. The EC50 of HHCB and AHTN based on shoot were 155.84 mg x kg(-1) and 290.58 mg x kg(-1), and were 215.66 mg x kg(-1) and 323.10 mg x kg(-1) based on root from linear model. The EC50 of wheat sensitive positions showed that the toxicity of HHCB was stronger than AHTN.
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Affiliation(s)
- Su Chen
- Key Laboratory of Regional Environment and Eco-remediation, Ministry of Education, Shenyang University, Shenyang 110044, China.
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Xu-bo S, Hua Z, Hong B, Chao L, Yi Y. e0169 In vitro effects of low molecular weight heparin on clot rate. Heart 2010. [DOI: 10.1136/hrt.2010.208967.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Somatic gene delivery approaches have received wide attention as a new technique for studying gene expression and as a potential therapeutic tool in treating both inherited and acquired diseases. Recent studies using nonviral and viral vectors have shown great promise for gene therapy in hypertensive diseases. Potential targets for prospective gene therapy in hypertension include vasopressor renin-angiotensin system components and a number of vasodilator polypeptides such as tissue kallikrein-kinin, atrial natriuretic peptide, adrenomedullin and nitric oxide synthase. Antisense inhibition with oligonucleotides or cDNAs encoding renin, angiotensinogen, angiotensin-converting enzyme and angiotensin receptors has been shown to cause a prolonged blood pressure reduction in spontaneously hypertensive rats. To evaluate the therapeutic potential of vasodilator proteins or peptides in high blood pressure, we delivered the genes encoding human tissue kallikrein, atrial natriuretic peptide, nitric oxide synthase, and adrenomedullin into hypertensive rat models and showed that a single injection resulted in a significant and sustained reduction of blood pressure for several weeks. The potency and duration of blood pressure reduction depends on the dose and the promoter of the gene administered, age and sex of the hypertensive animals as well as the vehicle used for gene delivery. Somatic gene transfer of human tissue kallikrein or atrial natriuretic peptide not only attenuated hypertension but also exerted a protective effect against salt-induced renal damage and cardiac hypertrophy in Dahl salt-sensitive rats after high salt loading. These results suggest that the application of antisense inhibition of vasopressors, or gene delivery of vasodepressors for gene therapy, may have potential in treating human hypertension, and cardiovascular and renal disorders.
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Affiliation(s)
- J Chao
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina 29425-2211, USA
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Wang X, Chao L, Jin G, Ma G, Zang Y, Sun J. Association between CpG island methylation of the WWOX gene and its expression in breast cancers. Tumour Biol 2009; 30:8-14. [PMID: 19188760 DOI: 10.1159/000197911] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2008] [Accepted: 12/03/2008] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The aim of the present study was to evaluate the expression of the WWOX gene in breast carcinoma and to analyze the relationship between its expression and methylation. METHODS Methylation of the WWOX promoter and exon 1 as well as WWOX expression were determined by methylation-specific PCR, reverse transcription PCR and immunohistochemistry in 20 breast cancer tissue samples and corresponding nonneoplastic tissues. The expression of WWOX protein was evaluated by immunohistochemistry in 2 breast cancer cell lines. RESULTS WWOX mRNA expression was reduced in breast cancer tissues as compared to adjacent tissues (p < 0.001). WWOX mRNA and protein expression was significantly reduced in breast cancer tissues with methylated WWOX CpG islands when compared to tissues without methylation (p < 0.001 and p = 0.008, respectively). Immunohistochemical analysis also showed that WWOX levels were significantly decreased in tissues with WWOX methylation (p = 0.001). WWOX mRNA and protein expression was greatly reduced in MDA-MB-231 cells, partly due to the methylation of WWOX CpG islands, and recovered after hydralazine treatment. CONCLUSIONS Differential regulation of the WWOX gene plays an important role in the carcinogenesis of breast cancer, due partially to methylation of the WWOX DNA CpG islands.
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Affiliation(s)
- X Wang
- Department of Breast Surgery, Jinan Central Hospital, Medical College, Jinan, China
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Chen S, Sun L, Chao L, Zhou Q, Sun T. Estimation of lead bioavailability in smelter-contaminated soils by single and sequential extraction procedure. Bull Environ Contam Toxicol 2009; 82:43-47. [PMID: 18854907 DOI: 10.1007/s00128-008-9566-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2007] [Accepted: 09/24/2008] [Indexed: 05/26/2023]
Abstract
In this study, the single extraction and sequential extraction procedure were used to separate Pb from an old smelter soil in Liaoning Province, China. At the same time, the root and the overground parts of six species plants in the smelter were harvested for analysis. The concentrations of Pb in the roots and the overground parts of the plants were then compared with the amounts of Pb extracted from the rhizosphere soil by range of conventional extractants. The speciation distribution of Pb was RES > OX > OM > WSA > SE. Assuming that metal mobility and bioavailability are related to their solubility and the contents in typical plants in the contaminated soil, Pb would be the potential risk to environment safety in the area.
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Affiliation(s)
- Su Chen
- Key Laboratory of Eco-remediation of Contaminated Environment and Resources Reuse, Shenyang University, Ministry of Education, Shenyang 110044, China
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Abstract
BACKGROUND Patients with triple-negative [oestrogen receptor (ER) negative, progesterone receptor (PR) negative, and human epidermal growth factor receptor 2 (HER-2/neu) negative] breast cancer, accounting for about 15% of breast cancer cases, are associated with aggressive histology, poor prognosis and shorter survival. Osteopontin is a chemokine-like phosphorylated glycoprotein that plays important role in cancer progression and is found to be a metastasis-associated protein in breast cancer. The goal of the study was to evaluate osteopontin protein expression levels in triple-negative breast carcinomas to determine if they correlated with clinicopathological parameters, thus providing additional support for osteopontin functioning and better understanding of triple-negative breast cancer. MATERIALS AND METHODS A database of 239 patients, in whom all three markers (ER, PR, and HER-2/neu) were available, was reviewed. We performed osteopontin protein expression analyses by means of immunohistochemistry on 117 breast carcinoma tissue samples, and then assessed the mean value of osteopontin expression against triple-negative status and clinicopathological parameters. RESULTS Of the 239 patients in the study, 47 were classified as triple negative. Of the 117 osteopontin-test patients in this cohort, mean osteopontin levels were significantly higher in the triple-negative breast cancers than in non-triple-negative subtype (P = 0.035). TNM (tumours, nodes, metastases) stage were significantly associated with osteopontin levels (P = 0.038). Univariate analysis showed tumour cell osteopontin positivity above an optimized cut-point to be significantly associated with decreased disease-free survival, but not overall survival. In the multivariate model, osteopontin was an independent prognostic factor for disease-free survival. CONCLUSIONS Patients with osteopontin overexpression develop predominantly triple-negative tumours. Osteopontin overexpression is associated with tumour aggressiveness and poor prognosis.
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Affiliation(s)
- X Wang
- Department of Breast Cancer, Qilu Hospital, Shandong University, Jinan, Shandong, China
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Papewalis C, Wuttke M, Jacobs B, Domberg J, Willenberg H, Baehring T, Cupisti K, Raffel A, Chao L, Fenk R, Seissler J, Scherbaum WA, Schott M. Dendritic cell vaccination induces tumor epitope-specific Th1 immune response in medullary thyroid carcinoma. Horm Metab Res 2008; 40:108-16. [PMID: 18283628 DOI: 10.1055/s-2007-1022565] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The existence of inherited aggressive forms of medullary thyroid carcinoma (MTC) and their resistance to classical therapies make it a prime candidate for adoptive immunotherapy. Highly potent antigen-presenting cells, namely dendritic cells (DCs), may serve as an interesting tool for anticancer vaccination. Here we report on the IN VITRO findings of a vaccination trial in five MTC patients, who were treated with a new DC generation protocol consisting of granulocyte-macrophage colony-stimulating factor and interferon-alpha (IFN-DCs). These cells were pulsed with tumor-specific calcitonin and administered twice. In two patients who responded to therapy we found a large increase (in mean 2.9+/-1.9%) of antigen-specific IFN-gamma-secreting CD4+ cells as well as an increase of granzyme B positive CD8+ cells (mean 2.2+/-0.2%) in the peripheral blood. In parallel, a decrease of CD4+/CD25+/FoxP3+ regulatory T cells was seen. Importantly, IN VITRO stimulation of PBMC with 10 different 15mer calcitonin peptides resulted in the identification of two HLA class II epitope regions within the central part of full-length calcitonin. These data were in accordance with the results drawn from the computer-based algorithm epitope prediction software SYFPEITHI. Measurement of different pro- and anti-angiogenic factors did not allow for a distinct outcome of prediction of the treated patients. In summary, we have demonstrated that immunization with IFN-DCs leads to a tumor epitope-specific immune response in MTC patients and may, therefore, represent a promising tool for future vaccination trials.
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Affiliation(s)
- C Papewalis
- Department of Endocrinology, Diabetes, and Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany
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