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Guo J, An J, Chang H, Li Y, Dang Z, Wu C, Gao Z. The Lethal and Sublethal Effects of Lambda-Cyhalothrin and Emamectin Benzoate on the Soybean Pest Riptortus pedestris (Fabricius). Toxics 2023; 11:971. [PMID: 38133372 PMCID: PMC10747274 DOI: 10.3390/toxics11120971] [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: 10/30/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
Riptortus pedestris (Fabricius, 1775) (Hemiptera: Alydidae) is a major soybean pest in East Asia that can cause soybean staygreen syndrome. To date, no insecticides have been registered for the control of R. pedestris in China, and these insects are primarily controlled in the field through the application of broad-spectrum insecticides including lambda-cyhalothrin (LCT) and emamectin benzoate (EMB). Here, the lethal and sublethal effects of LCT and EMB on R. pedestris were comprehensively evaluated. LCT and EMB were both found to exhibit high levels of toxicity and concentration-dependent repellent effects for R. pedestris. The exposure of third instar nymphs from the F0 generation to LC30 concentrations of LCT and EMB resulted in a significant increase in the duration of nymph development and adult pre-oviposition period (APOP), together with reductions in fifth instar nymph and adult body weight, longevity, oviposition days, fecundity, vitellarium length, lateral oviduct diameter, and vitellogenin (Vg) gene expression as compared to control treatment. Strikingly, these suppressive effects were transmitted to the F1 generation, which similarly experienced the prolongation of preadult development and the preoviposition period (TPOP). Relative to control-treated populations, the F1 generation for these insecticide-treated groups also exhibited significant decreases in population parameter values. Overall, these data offer new insight into the impact that LCT and EMB treatment can have on R. pedestris, providing a valuable foundation for the application of these pesticides in the context of integrated pest management strategies aimed at soybean crop preservation.
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Affiliation(s)
- Jianglong Guo
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Jingjie An
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Hong Chang
- Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Yaofa Li
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Zhihong Dang
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
| | - Chi Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Zhanlin Gao
- Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, Baoding 071000, China; (J.G.); (J.A.); (Y.L.); (Z.D.)
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Zhao Y, An J, Dang Z, Guo J, Gao Z, Ma S, Li Y. Identification of highly active compounds from insecticidal plant Oroxylum indicum L. (Vent.) and the induction of apoptosis by lapachol on Sf9 cells. In Vitro Cell Dev Biol Anim 2023; 59:674-683. [PMID: 37966689 DOI: 10.1007/s11626-023-00821-y] [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: 08/25/2023] [Accepted: 10/18/2023] [Indexed: 11/16/2023]
Abstract
The extraction of biopesticides from plants has become a promising field for agricultural development. To explore a high-efficiency and viable method for the screening of plant compounds with insecticidal activity, we screened for active ingredients in the insecticidal plant, Oroxylum indicum L. Vent, using Sf9 cells. A CCK-8 cytotoxicity assay kit was used for high-throughput screening of 34 compounds contained in O. indicum. The apoptosis-inducing effect of the highly cytotoxic compound on Sf9 cells was investigated by morphological characterization using inverted microscopy, caspase-3 activity assay, and DNA gel electrophoresis. Finally, the biological activity of compounds against aphids was evaluated using the leaf-pest dipping methods and leaf dipping methods. Results showed that among the main compounds identified, lapachol, chrysin, and baicalein had good proliferation inhibitory effects on Sf9 cells, with their recorded IC50 being 11.53 mg/L, 38.39 mg/L, and 42.10 mg/L, respectively. Moreover, the IC50 value of lapachol was lower than the control insecticides rotenone (18.03 mg/L) and fipronil (21.04 mg/L). Apoptosis assay further showed that lapachol promoted the production of caspase-3 and led to DNA fragmentation in Sf9 cells. Lapachol showed high biological activity against Aphis gossypii, Sitobion avenae, and Semiaphis heraclei, with its recorded LC50 being 104.40, 101.80, and 110.29 mg/L, respectively, which were comparable to the activity of the control insecticide rotenone. High-throughput screening of active ingredients in the insecticidal plant O. indicum using Sf9 cells is feasible, and the identification of lapachol as the main aphidicidal active substance is valuable for further study.
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Affiliation(s)
- Yujing Zhao
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management On Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding, 071000, People's Republic of China
- College of Plant Protection, Hebei Agricultural University, Baoding, 071001, China
| | - Jingjie An
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management On Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding, 071000, People's Republic of China
| | - Zhihong Dang
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management On Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding, 071000, People's Republic of China
| | - Jianglong Guo
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management On Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding, 071000, People's Republic of China
| | - Zhanlin Gao
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management On Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding, 071000, People's Republic of China.
| | - Shujie Ma
- College of Plant Protection, Hebei Agricultural University, Baoding, 071001, China.
| | - Yaofa Li
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management On Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding, 071000, People's Republic of China.
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An J, Dou Y, Dang Z, Guo J, Gao Z, Li Y. Detoxification enzyme is involved in the temperature effect on the toxicity of tetrachlorantraniliprole to Plutella xylostella. Pestic Biochem Physiol 2023; 195:105536. [PMID: 37666608 DOI: 10.1016/j.pestbp.2023.105536] [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: 03/17/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 09/06/2023]
Abstract
The efficacy of insecticides is usually influenced by temperature. Insecticides can be divided into "positive", "negative" and "non-effect" temperature coefficient insecticides (TCI). To assess the temperature-dependent effect of tetrachlorantraniliprole (TET) on Plutella xylostella Linnaeus and to elucidate the mechanism of temperature affects TET toxicity, we determined the toxicity of TET against P. xylostella from 15 °C to 35 °C by leaf dipping method. Moreover, we compared the transcriptome data of the third-instar larvae treated by TET, chlorfenapyr (CHL, non-effect TCI), and the control group at 15, 25, 35 °C, respectively. The results showed that the toxicity of TET against P. xylostella increased with increasing temperature from 15 °C to 35 °C. A total of 21 differential expressed genes (DEGs) of detoxification enzymes were screened by RNA-seq, in which 10 up-regulated genes (3 UGTs, 2 GSTs, 5 P450s) may involve the positive temperature effect of TET, and their expression patterns were consistent with qPCR results. Furthermore, the enzyme activities of GSTs and UGTs significantly increased after TET was treated at 15 °C. Especially, the temperature coefficient (TC) of TET was significantly reduced mixed with UGTs enzyme inhibitor 5-NI. Overall, TET showed higher insecticidal activity with increasing temperature, in which detoxifying enzymes associated with regulation of the positive temperature effect of TET on P. xylostella, such as UGTs, GSTs and P450s, are strongly involved. The transcriptome data provide in-depth information to understand the TET mechanism against diamondback moth. Most importantly, we identified detoxification enzymes that might be involved in regulating TET's positive temperature effect process, and contributed to efficient pest management.
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Affiliation(s)
- Jingjie An
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences / IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding 071000, China
| | - Ya'nan Dou
- Agricultural Specialty Industry Development Center of Baoding, Baoding 071000, China
| | - Zhihong Dang
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences / IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding 071000, China
| | - Jianglong Guo
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences / IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding 071000, China
| | - Zhanlin Gao
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences / IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding 071000, China
| | - Yaofa Li
- Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences / IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, Baoding 071000, China.
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Yu HP, Zheng Y, Lu LX, He YJ, Liang ZJ, Zhang LX, Wang JK, Qin JW, Li B, Li CY, Wang P, Dang Z, Zhang JC, Yu XH. [Preliminary study on the expression of MIF in HCC tissues and its relationship with ERK1/2 signaling pathway]. Zhonghua Nei Ke Za Zhi 2022; 61:1228-1233. [PMID: 36323564 DOI: 10.3760/cma.j.cn112138-20220502-00334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the expression of Macrophage migration-inhibitory factors (MIF) in hepatocellular carcinoma (HCC) tissues and its interaction with ERK1/2 signaling pathway, so as to establish a theoretical basis for further studying the molecular mechanism of MIF promoting HCC. Methods: From February 2020 to August 2021, 52 cases of hepatocellular carcinoma (HCC) tissues based on hepatitis B cirrhosis (HBV-LC) and 52 cases of adjacent tissues in Tianjin Medical University Cancer Hospital and 940th Hospital of Joint Logistic Support Force of PLA were collected as the experimental group, including 39 males and 13 females, aged 35-65 years. And 20 cases of normal liver tissue were selected as the control group. Immunohistochemistry was used to detect the expression of MIF, ERK1/2 and p-ERK1/2 proteins in liver tissues of the two groups, and in situ hybridization was used to detect the expression of ERK1/2 nucleic acid in liver tissues of the two groups.HepG2 HCC cells and L-02 normal hepatocytes were co-cultured with different concentrations of rMIF, the expression and phosphorylation levels of ERK1/2 and JNK1 proteins in the two kinds of liver cells were detected by Western-blot, and the expression levels of ERK1/2 nucleic acids in the two kinds of liver cells were detected by RT-PCR. One-way ANOVA was used for measurement data and χ2 test was used for counting data. Results: The expressions of MIF, ERK1/2, p-ERK1/2 and ERK1/2 mRNA were significantly increased in HCC and para-cancer tissues (the expression of MIF in HCC group was 78.8%, and that in adjacent group was 75.0%; ERK1/2 80.8% in HCC group and ERK1/2 71.8% in paracancerous group. The expression of p-ERK1/2 75.0 % in HCC group and 46.2% in paracancerous group were respectively detected. ERK1/2 mRNA was expressed in HCC group 76.9%, ERK1/2 mRNA expression in paracancerous group 78.8%), and the differences were statistically significant compared with normal liver tissues (P<0.05), but there was no significant difference between HCC and para-cancer tissues (P>0.05). The expressions of ERK1/2, p-ERK1/2 and ERK1/2 mRNA in HepG2 HCC cells were significantly increased with the increase of rMIF concentration, and the increase was most obvious when rMIF concentration was 200 ng/ml, and the difference was statistically significant compared with L-02 normal hepatocytes (P<0.05). Conclusion: MIF, ERK1/2 and p-ERK1/2 are highly expressed in HCC tissues and HepG2 HCC cells, suggesting that MIF promotes the occurrence and development of hepatocellular carcinoma through ERK1/2 signaling pathway.
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Affiliation(s)
- H P Yu
- Department of Interventional Therapy, Cancer Hospital of Tianjin Medical University, National Clinical Medical Research Center for Cancer, Tianjin Municipal Key Laboratory of Cancer Prevention and Therapy, Tianjin Municipal Clinical Medical Research Center for Cancer, Tianjin 300060, China
| | - Y Zheng
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - L X Lu
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - Y J He
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - Z J Liang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - L X Zhang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - J K Wang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - J W Qin
- Liver and Gallbladder Surgery, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
| | - B Li
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - C Y Li
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - P Wang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - Z Dang
- Liver and Gallbladder Surgery, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
| | - J C Zhang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - X H Yu
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
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Dou Y, An J, Yan X, Dang Z, Guo J, Gao Z, Li Y. Influence of pre-exposure time on the toxicities of different temperature effect insecticides to Apolygus lucorum (Hemiptera: Miridae). PLoS One 2022; 17:e0272429. [PMID: 35969534 PMCID: PMC9377605 DOI: 10.1371/journal.pone.0272429] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 07/19/2022] [Indexed: 11/18/2022] Open
Abstract
Temperature can have influences on the toxicities and efficacies of insecticides. Therefore, it is important to accurately evaluate the temperature effect (TE) on the toxicities of insecticides to insects. Previous studies have shown that the pre-exposure of insects to temperatures before their contact with insecticides, caused variations in their toxicities. However, most of these studies focused on the TE of the insecticides post-treatment. In this study we hypothesized that pre-exposure time of insect at different temperature can influence the toxicities of insecticides. We then evaluated the influence of different pre-exposure time (0, 2, 4, 8, 12 and 24 h) on toxicities of three different temperature effect insecticides (TEIs) to Apolygus lucorum at 15, 25 and 35°C respectively. We found that all toxicities of three TEIs to A. lucorum did not vary with pre-exposure time at 25°C. The LC50 of hexaflumuron (positive TEI) only decreased (from 1800.06 to 237.40 mg/L) at 15°C, with an increase in the pre-exposure time. Whereas the LC50 of β-cypermethrin (negative TEI) decreased from 225.43 to 60.79 mg/L at 35°C. These results also showed that the temperature coefficients (TCs) of the toxicities were influenced by pre-exposure time at different temperatures. For hexaflumuron, all the TCs at 25°C and 35°C decreased, as the pre-exposure time increased. For β-cypermethrin, the TCs decreased significantly only at 35°C. The toxicity and TCs of phoxim (non-effect TEI) showed no obvious fluctuation at the tested temperatures. These results showed that when the pre-exposure times were extended, the toxicities of the positive / negative TEI showed an increase at the temperature where the pest was less sensitive to the insecticides. These results can be applied to determine the toxicities / bioactivities of different insecticides accurately at different temperatures.
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Affiliation(s)
- Ya’nan Dou
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
| | - Jingjie An
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
| | - Xiu Yan
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
| | - Zhihong Dang
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
| | - Jianglong Guo
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
| | - Zhanlin Gao
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
| | - Yaofa Li
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, P. R. China, Baoding, China
- * E-mail:
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Ding L, Zhou R, Yuan Y, Yang H, Li J, Yu T, Liu C, Wang J, Li S, Gao H, Deng Z, Li N, Wang Z, Gong Z, Liu G, Xie J, Wang S, Rong Z, Deng D, Wang X, Han S, Wan W, Richter L, Huang L, Gou S, Liu Z, Yu H, Jia Y, Chen B, Dang Z, Zhang K, Li L, He X, Liu S, Di K. A 2-year locomotive exploration and scientific investigation of the lunar farside by the Yutu-2 rover. Sci Robot 2022; 7:eabj6660. [PMID: 35044796 DOI: 10.1126/scirobotics.abj6660] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The lunar nearside has been investigated by many uncrewed and crewed missions, but the farside of the Moon remains poorly known. Lunar farside exploration is challenging because maneuvering rovers with efficient locomotion in harsh extraterrestrial environment is necessary to explore geological characteristics of scientific interest. Chang'E-4 mission successfully targeted the Moon's farside and deployed a teleoperated rover (Yutu-2) to explore inside the Von Kármán crater, conveying rich information regarding regolith, craters, and rocks. Here, we report mobile exploration on the lunar farside with Yutu-2 over the initial 2 years. During its journey, Yutu-2 has experienced varying degrees of mild slip and skid, indicating that the terrain is relatively flat at large scales but scattered with local gentle slopes. Cloddy soil sticking on its wheels implies a greater cohesion of the lunar soil than encountered at other lunar landing sites. Further identification results indicate that the regolith resembles dry sand and sandy loam on Earth in bearing properties, demonstrating greater bearing strength than that identified during the Apollo missions. In sharp contrast to the sparsity of rocks along the traverse route, small fresh craters with unilateral moldable ejecta are abundant, and some of them contain high-reflectance materials at the bottom, suggestive of secondary impact events. These findings hint at notable differences in the surface geology between the lunar farside and nearside. Experience gained with Yutu-2 improves the understanding of the farside of the Moon, which, in return, may lead to locomotion with improved efficiency and larger range.
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Affiliation(s)
- L Ding
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - R Zhou
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Y Yuan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - H Yang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - J Li
- Beijing Aerospace Control Center, Beijing 100094, China
| | - T Yu
- Beijing Aerospace Control Center, Beijing 100094, China
| | - C Liu
- Beijing Aerospace Control Center, Beijing 100094, China.,Key Laboratory of Science and Technology on Aerospace Flight Dynamics, Beijing 100094, China
| | - J Wang
- Beijing Aerospace Control Center, Beijing 100094, China
| | - S Li
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - H Gao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Z Deng
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - N Li
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Z Wang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Z Gong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - G Liu
- Department of Aerospace Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada
| | - J Xie
- Beijing Aerospace Control Center, Beijing 100094, China
| | - S Wang
- Beijing Aerospace Control Center, Beijing 100094, China
| | - Z Rong
- Beijing Aerospace Control Center, Beijing 100094, China
| | - D Deng
- Beijing Aerospace Control Center, Beijing 100094, China
| | - X Wang
- Beijing Aerospace Control Center, Beijing 100094, China.,Key Laboratory of Science and Technology on Aerospace Flight Dynamics, Beijing 100094, China
| | - S Han
- Beijing Aerospace Control Center, Beijing 100094, China
| | - W Wan
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
| | - L Richter
- Large Space Structures GmbH, Hauptstrasse 1, D-85386 Eching, Germany
| | - L Huang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - S Gou
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
| | - Z Liu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - H Yu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China
| | - Y Jia
- China Academy of Space Technology, Beijing 100094, China
| | - B Chen
- China Academy of Space Technology, Beijing 100094, China
| | - Z Dang
- China Academy of Space Technology, Beijing 100094, China
| | - K Zhang
- Beijing Aerospace Control Center, Beijing 100094, China
| | - L Li
- Beijing Aerospace Control Center, Beijing 100094, China
| | - X He
- Beijing Aerospace Control Center, Beijing 100094, China
| | - S Liu
- Beijing Aerospace Control Center, Beijing 100094, China
| | - K Di
- State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
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Xu Z, Han C, Dang Z, Huang T, Li Z, Huang Y. [The bacteriological characteristics and drug resistance of the nasopharyngeal region in 311 cases of adenoid hypertrophy with secretory otitis media]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 35:428-431. [PMID: 34304468 PMCID: PMC10128474 DOI: 10.13201/j.issn.2096-7993.2021.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Indexed: 11/12/2022]
Abstract
Objective:To analyze the bacteriological distribution and drug resistance of nasopharynx in patients with adenoid hypertrophy complicated with secretory otitis media, and to clarify the distribution of pathogenic bacteria, so as to provide guidance and basis for antibiotic use in clinical treatment. Methods:A retrospective analysis was performed on 311 patients with adenoid hypertrophy and secretory otitis media who underwent surgical treatment in the department of otolaryngology head and neck surgery, Affiliated Hospital of Qingdao University from February 2013 to January 2020. They were divided into 3 groups by age: Group A(0-5 years old), Group B(6-10 years old), and Group C(11-16 years old). The secretions from deep adenoid near the eustachian tube of the affected ear were collected during the surgery for bacterial culture and drug resistance analysis. Results:One hundred and forty-two strains of pathogenic bacteria were isolated and cultured, with a detection rate of 45.66%. Staphylococcus aureus (63 strains), streptococcus pneumoniae (15 strains) ,streptococcus pyogenes (13 strains) and moraxella cachinella(28 strains)was the main strain.Staphylococcus aureus had high drug resistance rate to penicillin, erythromycin and clindamycin.Streptococcus pneumoniae and Streptococcus pyogenic had high resistance rates to erythromycin,clindamycin and tetracycline. The resistance rate of Moraxella catarrhalis to ampicillin and co-trimoxazole was higher. Conclusion:The main pathogens detected in patients with adenoid hypertrophy complicated with secretory otitis media are staphylococcus aureus, streptococcus pneumoniae, streptococcus pyogenes and moraxella catarrhalis. Drug resistance of different pathogens is quite different. So it is recommended to carry out extensive bacteriological detection, and select antibiotics according to the principle of rational drug use and the results of drug resistance test, so as to achieve good therapeutic effect.
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Affiliation(s)
- Zhen Xu
- Department of Otolaryngology Head and Neck Surgery,the Affiliated Hospital of Qingdao University,Qingdao,266555,China
| | - Chunhua Han
- Department of Clinical Laboratory,the Affiliated Hospital of Qingdao University
| | - Zhihong Dang
- Department of Otolaryngology Head and Neck Surgery,the Affiliated Hospital of Qingdao University,Qingdao,266555,China
| | - Tianqiao Huang
- Department of Otolaryngology Head and Neck Surgery,the Affiliated Hospital of Qingdao University,Qingdao,266555,China
| | - Zhiyuan Li
- Key Laboratory of Otolaryngology Head and Neck Surgery,the Affiliated Hospital of Qingdao University
| | - Yichuan Huang
- Department of Otolaryngology Head and Neck Surgery,the Affiliated Hospital of Qingdao University,Qingdao,266555,China
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Avolio E, Thomas A, Dang Z, Faulkner A, Gu Y, Beltrami A, Carrizzo A, Maciag A, Ciaglia E, Ferrario A, Damato A, Spinetti G, Vecchione C, Puca A, Madeddu P. Rescue of cardiac function in obese type-2 diabetic mice by transfer of a human longevity gene. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3653] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Healthy longevity is the result of the interaction between favourable environment and unique genetic makeup. We showed that horizontal transfer of a longevity-associated gene variant (LAV-BPIFB4) improves endothelial function and accelerates the recovery from ischemia.
Purpose
To determine if the benefit of LAV-BPIFB4 gene therapy can be extended to diabetic cardiomyopathy.
Methods and results
We confirmed that human diabetic patients with heart failure (n=13) show a decreased cardiac expression of BPIFB4 compared with healthy subjects (n=10). Obese db/db mice received a systemic injection of adeno-associated viral vector (AAV9)-LAV-BPIFB4, AAV9-wild type (WT)-BPIFB4 (both 100 μL at 1×1012 GC/mL) or vehicle before the onset of cardiomyopathy, and were euthanised four weeks later for histological, metabolic and transcriptional analyses. Echocardiographic evaluation (n=8/group), performed at baseline and after gene therapy, showed that LAV-BPIFB4 treatment, despite not resolving hyperglycaemia, improved left ventricular function compared with the other groups. Histological analyses of the hearts (n=5 to 10/group) revealed that LAV-BPIFB4 reduced myocardial fibrosis and increased angiogenesis compared with vehicle and WT-hearts; moreover, LAV increased the expression of the alpha-isoform of the cardiac myosin heavy chain, which is associated with a superior cardiomyocyte contractility. Interestingly, LAV-BPIFB4 treatment induced an increase in cardiac SDF1 expression compared with WT and vehicle, despite the mechanism linking the two events is still unknown. The oral administration of the CXCR4 antagonist AMD-070, given at 2 mg/kg/day for four weeks, abolished several of the beneficial effects exerted by the LAV-BPIFB4 therapy in the obese diabetic mice, as assessed by echocardiography and histology (n=7/group).
At the molecular level, next-generation RNA sequencing (n=3 to 4 /group) showed 8 genes were differentially expressed by LAV-BPIFB4-hearts compared with vehicle-hearts. These genes are associated with mitochondrial and metabolic functions. Among them, changes in the UCP3, HMGCS2, CS, ATPB and TOMM20 expression were also validated at the protein level by western blotting. Lipidomics using ultrahigh-performance liquid chromatography-mass spectrometry (n=6 or 7/group) showed 63 metabolites differentially expressed by LAV-BPIFB4- compared with vehicle-hearts, with only 3 (two cardiolipins and one glycerophospholipid) returning close to the non-diabetic phenotype following LAV-BPIFB4 treatment.
Conclusions
This study newly shows the possibility of transferring the benefit of salutary polymorphic gene variants to protect the cardiovascular system from metabolic pressure. Rather than combating pathogenic mechanisms, the strategy activates alternative pathways overriding disease risk factors.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): British Heart Foundation project grant “Longevity-associated BPIFB4 gene therapy for treatment of ischemic disease”
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Affiliation(s)
- E Avolio
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - A Thomas
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - Z Dang
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - A Faulkner
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - Y Gu
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - A.P Beltrami
- University of Udine, Department of Pathology, Udine, Italy
| | - A Carrizzo
- Irccs I.N.M. Neuromed, Department of Vascular Physiopathology, Pozzilli, Italy
| | - A Maciag
- IRCCS - MultiMedica, Cardiovascular Department, Milano, Italy
| | - E Ciaglia
- University of Salerno, Department of Medicine, Salerno, Italy
| | - A Ferrario
- IRCCS - MultiMedica, Cardiovascular Department, Milano, Italy
| | - A Damato
- Irccs I.N.M. Neuromed, Department of Vascular Physiopathology, Pozzilli, Italy
| | - G Spinetti
- IRCCS - MultiMedica, Cardiovascular Department, Milano, Italy
| | - C Vecchione
- Irccs I.N.M. Neuromed, Department of Vascular Physiopathology, Pozzilli, Italy
| | - A.A Puca
- University of Salerno, Department of Medicine, Salerno, Italy
| | - P Madeddu
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
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9
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Li Y, Dou Y, An J, Tu X, Lv H, Pan W, Dang Z, Gao Z. Temperature-dependent variations in toxicity of diamide insecticides against three lepidopteran insects. Ecotoxicology 2020; 29:607-612. [PMID: 32291615 DOI: 10.1007/s10646-020-02181-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/17/2020] [Indexed: 06/11/2023]
Abstract
The effect of temperature on the toxicities of four diamide insecticides (chlorantraniliprole, cyantraniliprole, flubendiamide, tetraniliprole) against three lepidopteran insects (Helicoverpa armigera, Plutella xylostella, Athetis lepigone) were determined from 15 to 35 °C by exposing third-instar larvae to dip-treated cabbage leaf. The results indicated that increase in temperature led to an increase significantly and regularly in the toxicities of the four diamide insecticides against P. xylostella and H. armigera, but not for A. lepigone. The temperature coefficients (TCs) of the four diamide insecticides increased from 15 to 35 °C. Tetraniliprole for H. armigera (+825.83), chlorantraniliprole for P. xylostella (+315.65) and cyantraniliprole for H. armigera (+225.77) exhibited high positive TCs. For A. lepigone, temperature had a positively weak or no effect on the toxicities of most of the diamide insecticides from 20 to 30 °C, but a higher effect from 30 to 35 °C. In addition, the toxicities of chlorantraniliprole, cyantraniliprole and tetraniliprole all decreased from 15 to 20 °C. This study can guide pest managers in choosing suitable ambient field temperature when spraying diamide insecticides against lepidopteran insects.
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Affiliation(s)
- Yaofa Li
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China
| | - Ya'nan Dou
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China
| | - Jingjie An
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China
| | - Xuewei Tu
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China
| | - Haiying Lv
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China
| | - Wenliang Pan
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China
| | - Zhihong Dang
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China.
| | - Zhanlin Gao
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences, IPM Center of Hebei Province, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, 071000, Baoding, PR China.
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Fan W, Peng Y, Meng Y, Zhang W, Zhu N, Wang J, Guo C, Li J, Du H, Dang Z. Transcriptomic Analysis Reveals Reduced Inorganic Sulfur Compound Oxidation Mechanism in Acidithiobacillus ferriphilus. Microbiology (Reading) 2018. [DOI: 10.1134/s0026261718040070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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11
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Dang Z, Zhang X, Luo X, Gao Z, Jia W, Xiao N, Huang F, Zhao Y, Xu S, Hu W, Zheng Y. Limited fertility of the subcutaneous cysts of Echinococcus multilocularis. Trop Biomed 2017; 34:491-493. [PMID: 33593034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Echinococcus multilocularis is a tiny devastating worm that causes alveolar echinococcosis in humans. This disease mainly occurs in the liver but rarely in other organs. We report the subcutaneous encystment of E. multilocularis metacestodes in experimentally infected mice. Subcutaneous cysts had remarkably fewer protoscoleces (2.05 ± 1.47, n = 20) and small irregular-shape vesicles (ISVs) in the lumen as compared to liver cysts (69.6 ± 55.65, n = 10). Moreover, abnormal development of a protoscolex was also observed in a subcutaneous cyst. The results suggest that subcutaneous encystment may have potential adverse effects on the reproductivity and development of protoscoleces, providing potential explanations for high tissue preference of metacestode encystment.
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Affiliation(s)
- Z Dang
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - X Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, Gansu 730046, China
| | - X Luo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, Gansu 730046, China
| | - Z Gao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, Gansu 730046, China
| | | | - N Xiao
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - F Huang
- Parasitology Laboratory, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Y Zhao
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, China
| | - S Xu
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, China
| | - W Hu
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, Gansu 730046, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
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Dang Z, Fu Y, Duo H, Fan H, Qiao Z, Guo Z, Feng K, Chui W, Shen X, Geng Qiu J, Ni M, He S, Zhao H, Peng M, Xiao N, Nonaka N, Nasu T, Huang F, Oku Y, Hayashimoto N, Hu W, Li W. An epidemiological survey of echinococcosis in intermediate and definitive hosts in Qinghai Province, China. Trop Biomed 2017; 34:483-490. [PMID: 33593033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In order to understand the epidemiological status of alveolar and cystic echinococcosis in intermediate and definitive hosts in Qinghai Province, China, during the period 2007-2011, we investigated the infection in humans and animals, including yaks, Tibetan sheep, Tibetan dogs, and wild foxes distributed in different counties around the province. Sera from local residents were examined using a rapid serodiagnostic kit to detect specific antibodies against Echinococcus. Seropositive samples were confirmed with B-scan ultrasonography and X-ray examinations. Yaks and Tibetan sheep were checked at slaughterhouses, and cysts and suspicious lesions were collected for analysis. A rapid diagnostic strip was used to detect Echinococcus adults in Tibetan dogs. Positive dogs were dewormed and the parasites collected. Wild foxes were trapped and necropsies performed with particular attention to the intestine. Forty-eight of 735 (6.4%) humans tested were positive and 475 of 854 (55.6%) Tibetan sheep and 85 of 352 (24.15%) yaks were infected with Echinococcus. Across different counties, 214 of 948 (22.57%) Tibetan dogs were positive, and five of 36 (13.9%) wild foxes were infected with Echinococcus. Molecular studies showed that all the infections detected in humans, domestic yaks, and Tibetan sheep were the G1 genotype (E. granulosus), whereas the parasites from Tibetan foxes and Tibetan dogs were E. shiquicus and E. multilocularis, respectively. In conclusion, Echinococcosis is hyperendemic in Qinghai Province in both its intermediate and definitive hosts and the G1 genotype of cystic Echinococcus is the dominant strain.
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Affiliation(s)
- Z Dang
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y Fu
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - H Duo
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - H Fan
- Affiliated Hospital of Qinghai University, Xining 810016, China
| | - Z Qiao
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - Z Guo
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
- Affiliated Hospital of Qinghai University, Xining 810016, China
| | - K Feng
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - W Chui
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - X Shen
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - J Geng Qiu
- Zhen Qin Township Veterinary Station, Chengduo 815100, China
| | - M Ni
- Haiyan Veterinary Stations, Haiyan 812200, China
| | - S He
- Haiyan Veterinary Stations, Haiyan 812200, China
| | - H Zhao
- Medical College of Qinghai University, Xining 810016, China
| | - M Peng
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - N Xiao
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - N Nonaka
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - T Nasu
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - F Huang
- Parasitology Laboratory, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Y Oku
- Parasitology Laboratory, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - N Hayashimoto
- ICLAS Monitoring Center, Central Institute for Experimental Animals, 3-25-12 Tonomachi, Kawasaki, Kanagawa 210-0821, Japan
| | - W Hu
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - W Li
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
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Liu J, Lincoln T, An J, Gao Z, Dang Z, Pan W, Li Y. The Joint Toxicity of Different Temperature Coefficient Insecticides on Apolygus lucorum (Hemiptera: Miridae). J Econ Entomol 2016; 109:1846-1852. [PMID: 27190041 DOI: 10.1093/jee/tow082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 12/31/2015] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
The effect of temperature on the cotoxicity coefficient (CTC) value was used to evaluate mixture efficacy of different temperature coefficient chemicals from 15 to 35°C by exposing third-instar Apolygus lucorum (Meyer-Dür) to dip-treated asparagus bean pods. The results indicated the joint toxicity of same temperature coefficient insecticide (TCI) types were unaffected by temperature. This means that even when temperatures change, the mixture ratios of the highest CTC values remained the same, and the effect of temperature on the joint toxicity of same TCI types was only on the CTC values. However, the effect of temperature was variable when considering the joint toxicity of different TCI types. The effect of temperature on the joint toxicity of both strong positive and strong negative TCI types was clear, and the highest CTC values of mixture ratios changed with temperature regularly. When comparing the influence of temperature between strong/slight positive/negative insecticides, the results indicated a greater influence of the strong TCI. Paradoxically, the highest CTC value of the imidacloprid and methomyl mixture did not change with temperature changes consistently, even with the variance of imidacloprid ratios, a strong TCI. These results will guide pest managers in choosing the most effective insecticide mixtures for A. lucorum control under given environmental conditions.
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Affiliation(s)
- Jia Liu
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/ IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 07100, China (; ; ; ; ; )
| | - Tamra Lincoln
- USDA ARS BCIRL, 1503 S. Providence, Research Pk., Columbia, MO , and
| | - Jingjie An
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/ IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 07100, China (; ; ; ; ; )
| | - Zhanlin Gao
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/ IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 07100, China (; ; ; ; ; )
| | - Zhihong Dang
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/ IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 07100, China (; ; ; ; ; )
| | - Wenliang Pan
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/ IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 07100, China (; ; ; ; ; )
| | - Yaofa Li
- Plant Protection Institute, Hebei Academy of Agricultural and Forestry Sciences/ IPM Center of Hebei Province/ Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 07100, China (; ; ; ; ; ),
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Wang H, Guo C, Yang C, Lu G, Chen M, Dang Z. Distribution and diversity of bacterial communities and sulphate-reducing bacteria in a paddy soil irrigated with acid mine drainage. J Appl Microbiol 2016; 121:196-206. [DOI: 10.1111/jam.13143] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 03/13/2016] [Accepted: 03/16/2016] [Indexed: 11/28/2022]
Affiliation(s)
- H. Wang
- School of Environment and Energy; South China University of Technology; Guangzhou China
| | - C.L. Guo
- School of Environment and Energy; South China University of Technology; Guangzhou China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters; Ministry of Education; South China University of Technology; Guangzhou China
| | - C.F. Yang
- School of Environment and Energy; South China University of Technology; Guangzhou China
| | - G.N. Lu
- School of Environment and Energy; South China University of Technology; Guangzhou China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters; Ministry of Education; South China University of Technology; Guangzhou China
| | - M.Q. Chen
- School of Environment and Energy; South China University of Technology; Guangzhou China
- School of Environmental and Biological Engineering; Guangdong University of Petrochemical Technology; Maoming China
| | - Z. Dang
- School of Environment and Energy; South China University of Technology; Guangzhou China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters; Ministry of Education; South China University of Technology; Guangzhou China
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Carrabba M, De Maria C, Oikawa A, Reni C, Rodriguez-Arabaolaza I, Spencer H, Slater S, Avolio E, Dang Z, Spinetti G, Madeddu P, Vozzi G. Design, fabrication and perivascular implantation of bioactive scaffolds engineered with human adventitial progenitor cells for stimulation of arteriogenesis in peripheral ischemia. Biofabrication 2016; 8:015020. [DOI: 10.1088/1758-5090/8/1/015020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Avolio E, Mangialardi G, Riu F, Katare R, Mitchell K, Dang Z, Spencer H, Meloni M, Beltrami AP, Madeddu P. P593Human vascular pericytes and cardiac progenitor cells combined transplantation for heart repair. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu098.23] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tang X, He LY, Tao XQ, Dang Z, Guo CL, Lu GN, Yi XY. Construction of an artificial microalgal-bacterial consortium that efficiently degrades crude oil. J Hazard Mater 2010; 181:1158-62. [PMID: 20638971 DOI: 10.1016/j.jhazmat.2010.05.033] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 05/08/2010] [Accepted: 05/10/2010] [Indexed: 05/13/2023]
Abstract
Four oil component-degrading bacteria and one oil-tolerant microalgae, Scenedesmus obliquus GH2, were used to construct an artificial microalgal-bacterial consortium for crude-oil degradation. The bacterial strains included Sphingomonas GY2B and Burkholderia cepacia GS3C, along with a mixed culture, named GP3, containing Pseudomonas GP3A and Pandoraea pnomenusa GP3B. GY2B could only degrade polycyclic aromatic hydrocarbons, GS3C was able to degrade aliphatic chain hydrocarbons, and GP3 could utilize both saturated and aromatic hydrocarbons. In combination with unialgal or axenic algae, the bacteria showed different effects on oil degradation. Unialgal GH2 was not suitable for the consortium construction, as it could not cooperate well with GS3C and GP3. The axenic GH2 exhibited no oil-degrading ability; however, it significantly promoted the degradation ability of the oil component-degrading bacteria, especially for degrading biorefractory polycyclic aromatic hydrocarbons. Axenic S. obliquus GH2, combined with the four bacteria mentioned above, formed an optimal algal-bacterial consortium. The artificial consortium demonstrated an elevated efficiency in degrading both aliphatic and aromatic hydrocarbons of crude oil.
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Affiliation(s)
- X Tang
- School of Environmental Science and Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, PR China
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Zhu W, Dang Z, Qiu J, Liu Y, Lv C, Diao J, Zhou Z. Species differences for stereoselective metabolism of ethofumesate and its enantiomers in vitro. Xenobiotica 2009; 39:649-55. [PMID: 19552529 DOI: 10.1080/00498250902974211] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
1. The stereoselective metabolism of ethofumesate (ETO) and its enantiomers in rabbit and rat liver microsomes have been studied by chiral high-performance liquid chromatography (HPLC) method. Two metabolites were detected in both liver microsomes in the presence of beta-nicotinamide adenine dinucleotide phosphate (NADPH). 2. The T(1/2) of (+)-ETO and (-)-ETO in rabbit liver microsomes were 12.2 and 4.7 min of rac-ETO and 25.9 and 6.7 of ETO enantiomers. However, the T(1/2) of (+)-ETO and (-)-ETO in rat liver microsomes were 5.3 and 5.9 min of rac-ETO and 7.8 and 10.6 of ETO enantiomers. The stereoselective selectivity is similar to the in vivo study. 3. After incubation of ETO enantiomers, stereoselectivity was present in the formation of ETO-OH enantiomer in rabbit liver microsomes, but stereoselectivity was not evident in rat liver microsomes. 4. There was no chiral inversion from the (+)-ETO to (-)-ETO or inversion from (-)-ETO to (+)-ETO in both rabbit and rat liver microsomes.
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Affiliation(s)
- W Zhu
- Department of Applied Chemistry, China Agricultural University, Beijing, P. R. China
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Dang Z, Huang L, Chen CH. HIV-1 maturation inhibitors: An update. DRUG FUTURE 2009. [DOI: 10.1358/dof.2009.34.10.1428207] [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: 03/29/2023]
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Anderson BG, Dang Z, Morrow BA. Silica-Supported Zirconia. 2. Effect of Sulfation on the Surface Acidity and Its Potential as a Catalyst for Methane-Olefin Coupling. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100039a037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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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Dang Z, Anderson BG, Amenomiya Y, Morrow BA. Silica-Supported Zirconia. 1. Characterization by Infrared Spectroscopy, Temperature-Programmed Desorption, and X-ray Diffraction. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100039a036] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [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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Dang Z, Balm PH, Flik G, Wendelaar Bonga SE, Lock RA. Cortisol increases Na(+)/K(+)-ATPase density in plasma membranes of gill chloride cells in the freshwater tilapia Oreochromis mossambicus. J Exp Biol 2000; 203:2349-55. [PMID: 10887073 DOI: 10.1242/jeb.203.15.2349] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The effect of cortisol on Na(+)/K(+)-ATPase expression in the gill chloride cells of tilapia Oreochromis mossambicus was studied by immunocytochemistry at the light and electron microscope levels. One of three doses of cortisol (low, 125 mg kg(−1)food; middle, 375 mg kg(−1)food; high, 750 mg kg(−1) food) was administered via the food (at a ration of 1.5 % of body mass) and the fish were sampled after 5 days. Plasma osmolality and Na(+) levels were elevated in the middle- and high-dose groups, and plasma cortisol levels in the high-dose groups. Hematocrit values were not affected by the treatments. Opercular membrane chloride cell density increased by 94 % and 286 % in the middle- and high-dose fish, respectively, whereas the gill chloride cell frequency increased by up to 28 % maximally in the high-dose fish. Lamellar gill chloride cells were absent in the control and low-dose groups, but were observed in the middle- and high-dose groups. Cortisol increased the volume of the tubular membrane system in mature gill chloride cells. Quantification of immunogold-labelled Na(+)/K(+)-ATPase antigen (a 104 kDa protein species, as demonstrated by western blot) revealed that the high dose of cortisol increases the Na(+)/K(+)-ATPase density in the tubular system of chloride cells. This is the first direct evidence that cortisol not only increases chloride cell numbers but also Na(+)/K(+)-ATPase density in these cells.
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Affiliation(s)
- Z Dang
- Department of Animal Physiology, University of Nijmegen, Toernooiveld 1, Nijmegen, The Netherlands
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Dang Z, Lock RA, Flik G, Wendelaar Bonga SE. Na(+)/K(+)-ATPase immunoreactivity in branchial chloride cells of Oreochromis mossambicus exposed to copper. J Exp Biol 2000; 203:379-87. [PMID: 10607547 DOI: 10.1242/jeb.203.2.379] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Chloride cells were identified by Na(+)/K(+)-ATPase immunocytochemistry at the light and electron microscope levels in gills of freshwater tilapia Oreochromis mossambicus. Turnover of chloride cells was enhanced by exposing the fish to waterborne copper (3.2 micromol l(−)(1)) for 14 days, as indicated by a 38 % increase in cells expressing proliferating cell nuclear antigen (PCNA) relative to controls. The expression of PCNA was most marked in the central area of the filamental epithelium, from where the chloride cells are thought to originate and migrate. In control fish, chloride cells were associated exclusively with the filamental epithelium. In both controls and copper-exposed fish, two chloride cell populations were seen after Na(+)/K(+)-ATPase immunostaining. These probably represent subpopulations of newly emerged chloride cells: (1) strongly stained cells (mature chloride cells) in the filamental and lamellar epithelium and (2) weakly stained cells, identified by electron microscopy as apoptotic and necrotic chloride cells, mainly in the filamental epithelium. Absolute numbers of mature chloride cells fell, while necrotic and apoptotic chloride cell numbers increased, in copper-exposed fish. A strong correlation could be established for gill Na(+)/K(+)-ATPase specific activity and the number of strongly stained chloride cells in controls and copper-exposed fish and for Na(+)/K(+)-ATPase specific activity and total numbers of immunoreactive cells in copper-exposed fish owing to an increased incidence of weakly staining cells.
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Affiliation(s)
- Z Dang
- Department of Animal Physiology, University of Nijmegen, Toernooiveld 1, Nijmegen, The Netherlands
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Dang Z, Lock RA, Flik G, Wendlelaar Bonga SE. Metallothionein response in gills of Oreochromis mossambicus exposed to copper in fresh water. Am J Physiol 1999; 277:R320-31. [PMID: 10409289 DOI: 10.1152/ajpregu.1999.277.1.r320] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Freshwater Oreochromis mossambicus (tilapia) were exposed to 3.2 micromol/l Cu(NO(3))(2) in the water for up to 80 days, and copper (Cu) and immunoreactive metallothionein (irMT) were localized in the branchial epithelium. Cu was demonstrated in mucous cells (MC), chloride cells (CC), pavement cells (PC), respiratory cells (RC), and basal layer cells (BLC) via autometallography combined with alcian blue staining for MC and Na(+)-K(+)-ATPase immunostaining for CC and, on the basis of their location in the epithelium of PC, RC, and BLC. In control fish (water with Cu concentration </=90 nmol/l) incidentally irMT was observed in the area where progenitor cells of the branchial epithelia reside, as demonstrated by proliferating cell nuclear antigen staining. This was also the area where the first increase irMT expression of the Cu exposure was observed. After 2 days of exposure to Cu, irMT was found in CC and PC. From 5 days on, a pronounced irMT staining was observed in BLC of branchial epithelium, which then appeared to migrate and differentiate into mature CC, PC, and RC. We conclude that MT expression in mature CC, PC, and RC requires exposure to Cu in a earlier stage of development of these cells. Once expression is initiated in undifferentiated cells, MT remains expressed throughout the life cycle of the cell.
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Affiliation(s)
- Z Dang
- Department of Animal Physiology, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands.
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