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Affiliation(s)
- San-Bao Hu
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Lian-Sheng Niu
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Wen-Bin Zheng
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Tong Sun
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Ming-Yao Sun
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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52
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Zhou DH, Zheng WB, Hou JL, Ma JG, Zhang XX, Zhu XQ, Cong W. Molecular detection and genetic characterization of Toxoplasma gondii in farmed raccoon dogs (Nyctereutes procyonoides) in Shandong province, eastern China. Acta Trop 2017; 172:143-146. [PMID: 28476602 DOI: 10.1016/j.actatropica.2017.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 03/10/2017] [Revised: 05/01/2017] [Accepted: 05/01/2017] [Indexed: 11/15/2022]
Abstract
Toxoplasma gondii is a successful opportunistic parasite, affecting a wide range of vertebrate animals and humans. Genetic diversity of T. gondii in raccoon dogs (Nyctereutes procyonoides) is of great importance to understand the transmission of T. gondii in the environment. However, no information is available about the distribution of genetic diversity of T. gondii infection in raccoon dogs. This study was conducted to estimate the prevalence and genetic characterization of T. gondii from raccoon dogs in Shandong province, eastern China. A total of 314 brain tissue samples of raccoon dogs were collected and genomic DNA was extracted and assayed for T. gondii infection using semi-nested PCR targeting B1 gene. The positive DNA samples were typed at 10 genetic markers (SAG1, SAG2(5'+3' SAG2, alter.SAG2), SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, and Apico) by multiplex multilocus nested polymerase chain reaction-restriction fragment length polymorphism (Mn- PCR-RFLP) technology. Thirty-five (11.15%) of 314 DNA samples were detected positive. Only six samples were completely typed at all genetic loci, and these samples represented ToxoDB genotype#9. Two sample were typed at 9 genetic loci and one was typed at 8 genetic loci, all of them represented Type I. To our knowledge, this is the first report of genetic characterization of T. gondii in raccoon dogs in China. These results revealed the existence of genetic diversity of T. gondii in raccoon dogs in China. These data provided base-line information for controlling T. gondii infection in raccoon dogs.
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Affiliation(s)
- Dong-Hui Zhou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Jun-Ling Hou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
| | - Wei Cong
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China; College of Marine Science, Shandong University at Weihai, Weihai, Shandong Province 264209, PR China.
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53
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Bai MJ, Zou Y, Elsheikha HM, Ma JG, Zheng WB, Zhao Q, Zhang XX, Zhu XQ. Toxoplasma gondii Infection in Farmed Wild Boars (Sus scrofa) in Three Cities of Northeast China. Foodborne Pathog Dis 2017; 14:379-385. [PMID: 28387529 DOI: 10.1089/fpd.2016.2260] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 11/13/2022] Open
Abstract
The apicomplexan protozoan parasite Toxoplasma gondii is a widely distributed etiological agent of foodborne illness. This parasite can cause production losses in livestock and serious disease in humans through consumption of contaminated meat. Pig meat is the most likely source of human infection, and wild boars may play a role in the transmission of T. gondii by serving as a reservoir host. This study aimed to investigate the seroprevalence of antibodies to T. gondii among farmed wild boars in China. In an 11-month survey, a total of 882 serum samples were obtained from farmed wild boars from three cities (Jilin City, Siping City, and Baishan City) in Jilin province, Northeast China and were tested for antibodies specific for T. gondii. Using modified agglutination test and a cutoff titer of 1:25, the prevalence of T. gondii infection in the examined samples was 10.0% (88 of 882). The highest seroprevalence was observed in animals from Jilin city (15.3%, 43/281) and followed by Siping (11.4%, 30/263) and Baishan (4.4%, 15/338). Logistic regression analysis revealed a significant correlation between the investigated geographic region and T. gondii infection. In addition, prevalence was higher in females compared to males, and the highest prevalence was detected in piglets. These findings indicate that farmed wild boars may become a source of foodborne toxoplasmosis, posing a food safety threat to the public health in the investigated areas. Implementation of effective measures to control T. gondii infection in farmed wild boars in China may be warranted.
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Affiliation(s)
- Meng-Jie Bai
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
| | - Yang Zou
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, China
| | - Hany M Elsheikha
- 3 Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham , Sutton Bonington Campus, Loughborough, United Kingdom
| | - Jian-Gang Ma
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, China
| | - Wen-Bin Zheng
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, China
| | - Quan Zhao
- 2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, China
| | - Xiao-Xuan Zhang
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, China
| | - Xing-Quan Zhu
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China .,4 Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province, China
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54
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Yue DM, Ma JG, Li FC, Hou JL, Zheng WB, Zhao Q, Zhang XX, Zhu XQ. Occurrence of Enterocytozoon bieneusi in Donkeys ( Equus asinus) in China: A Public Health Concern. Front Microbiol 2017; 8:565. [PMID: 28408904 PMCID: PMC5374738 DOI: 10.3389/fmicb.2017.00565] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 03/20/2017] [Indexed: 11/13/2022] Open
Abstract
Enterocytozoon bieneusi is an important zoonotic parasite. It can infect virtually all animal species and has a global distribution. However, the prevalence of E. bieneusi in donkeys (Equus asinus) has only been reported in Algeria and Spain, and no information is available concerning genotypes of E. bieneusi in donkeys worldwide. In the present study, a total of 301 donkey fecal samples (48 from Jilin Province, 224 from Shandong Province and 29 from Liaoning Province) were collected and examined by PCR amplification of the internal transcribed spacer (ITS) region. The overall E. bieneusi prevalence was 5.3% (16/301), with 6.3% (3/48) in Jilin Province, 4.9% (11/224) in Shandong Province, and 6.9% (2/29) in Liaoning Province. Prevalence in different age groups ranged from 4.2 to 5.5%. E. bieneusi prevalence in donkeys sampled in different seasons varied from 4.2 to 6.5%. Altogether, four E. bieneusi genotypes were identified in this study, with two known genotypes (J and D) and two novel genotypes (NCD-1and NCD-2). Phylogenetic analysis revealed that genotypes D, NCD-1 and NCD-2 belonged to group 1, while the remaining genotype J was clustered into group 2. These findings revealed the occurrence of E. bieneusi in donkeys in China for the first time. Moreover, the present study also firstly genotyped the E. bieneusi in donkeys worldwide. These findings extend the distribution of E. bieneusi genotypes and provide baseline data for controlling E. bieneusi infection in donkeys, other animals and humans.
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Affiliation(s)
- Dong-Mei Yue
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China.,College of Animal Science and Technology, Jilin Agricultural UniversityChangchun, China
| | - Fa-Cai Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China
| | - Jun-Ling Hou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China.,College of Animal Science and Technology, Jilin Agricultural UniversityChangchun, China
| | - Quan Zhao
- College of Animal Science and Technology, Changchun Sci-Tech UniversityShuangyang, China
| | - Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China.,College of Animal Science and Technology, Jilin Agricultural UniversityChangchun, China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China
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55
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Zhang XX, Feng SY, Ma JG, Zheng WB, Yin MY, Qin SY, Zhou DH, Zhao Q, Zhu XQ. Seroprevalence and Risk Factors of Fascioliasis in Yaks, Bos grunniens, from Three Counties of Gansu Province, China. Korean J Parasitol 2017; 55:89-93. [PMID: 28285513 PMCID: PMC5365270 DOI: 10.3347/kjp.2017.55.1.89] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 11/12/2016] [Accepted: 12/24/2016] [Indexed: 11/26/2022]
Abstract
The aim of this study was to determine the seroprevalence and risk factors of fascioliasis in yaks, Bos grunniens, from 3 counties of Gansu Province in China. A total of 1,584 serum samples, including 974 samples from white yaks from Tianzhu, 464 from black yaks from Maqu, and 146 from black yaks from Luqu County, were collected and analyzed using ELISA to detect IgG antibodies against Fasciola hepatica. The overall F. hepatica seroprevalence was 28.7% (454/1,584), with 29.2% in white yaks (284/974) and 27.9% in black yaks (170/610). The seroprevalence of F. hepatica in yaks from Tianzhu, Luqu, and Maqu was 29.2%, 22.6%, and 29.5%, respectively. Female yaks (30.9%) had higher F. hepatica seroprevalence than male yaks (23.4%). Also, F. hepatica seroprevalence varied by different age group from 24.1% to 33.8%. Further, the seroprevalence ranged from 21.8% to 39.1% over different seasons. Interestingly, the season and age of yaks were associated with F. hepatica infection in yaks in the investigated areas. These findings provided a basis for further studies on this disease in yaks from 3 counties of Gansu Province in northwestern China, which may ultimately support the development of effective control strategies of fascioliasis in these areas.
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Affiliation(s)
- Xiao-Xuan Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin 130118, China.,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Sheng-Yong Feng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Jian-Gang Ma
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin 130118, China.,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Wen-Bin Zheng
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin 130118, China.,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Ming-Yang Yin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Si-Yuan Qin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Dong-Hui Zhou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Quan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin 130118, China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
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56
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Zhang FK, Zhang XX, Elsheikha HM, He JJ, Sheng ZA, Zheng WB, Ma JG, Huang WY, Guo AJ, Zhu XQ. Transcriptomic responses of water buffalo liver to infection with the digenetic fluke Fasciola gigantica. Parasit Vectors 2017; 10:56. [PMID: 28143561 PMCID: PMC5286860 DOI: 10.1186/s13071-017-1990-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 01/18/2017] [Indexed: 02/08/2023] Open
Abstract
Background Fasciola gigantica, the tropical liver fluke, infects buffaloes in Asian and African countries and causes significant economic losses and poses public health threat in these countries. However, little is known of the transcriptional response of buffaloes to infection with F. gigantica. The objective of the present study was to perform the first transcriptomic analysis of buffalo liver infected by F. gigantica. Understanding the mechanisms that underpin F. gigantica infection in buffaloes will contribute to our ability to control this parasite. Methods We challenged buffaloes with 500 viable F. gigantica metacercariae and collected liver samples through a time course at 3, 42 and 70 days post-infection (dpi). Then, we performed gene expression analysis on liver samples using RNA sequencing (RNA-Seq) Illumina technology and confirmed the RNA-Seq data by quantitative RT-PCR analysis. Results Totals of 496, 880 and 441 differentially expressed transcripts were identified in the infected livers at 3, 42 and 70 dpi, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that transcriptional changes in the liver of infected buffaloes evolve over the course of infection. The predominant response of buffaloes to infection was mediated by certain pathways, such as MHC antigen processing and presentation, Toll-like receptor 4 (TLR4), transforming growth factor beta (TGF-β), and the cytochrome P450. Hepatic drug metabolizing enzymes and bile secretion were also affected. Conclusions Fasciola gigantica can induce statistically significant and biologically plausible differences in the hepatic gene expression of infected buffaloes. These findings provide new insights into the response of buffaloes to F. gigantica over the course of infection, which may be useful in determining pathways that can modulate host-parasite interaction and thus potentially important for clearance of the parasite. Electronic supplementary material The online version of this article (doi:10.1186/s13071-017-1990-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fu-Kai Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK
| | - Jun-Jun He
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Zhao-An Sheng
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530005, People's Republic of China
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Wei-Yi Huang
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, 530005, People's Republic of China
| | - Ai-Jiang Guo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu Province, 225009, People's Republic of China.
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Zheng WB, Cong W, Hou J, Ma JG, Zhang XX, Zhu XQ, Meng QF, Zhou DH. Seroprevalence and Risk Factors of Toxoplasma gondii Infection in Farmed Raccoon Dogs (Nyctereutes procyonoides) in China. Vector Borne Zoonotic Dis 2016; 17:209-212. [PMID: 27893338 DOI: 10.1089/vbz.2016.2035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 10/20/2022] Open
Abstract
Toxoplasma gondii, an obligate intracellular apicomplexan parasite, can infect homoiothermal vertebrate animals, including raccoon dogs (Nyctereutes procyonoides). Regretfully, data on T. gondii infection in raccoon dogs were limited in China. Therefore, to investigate the seroprevalence and to evaluate risk factors for T. gondii infection in raccoon dogs, a total of 1181 raccoon dog blood samples were collected from Jilin and Shandong provinces, China, from September to December 2014. The antibodies of T. gondii were examined using the modified agglutination test. Overall, the seroprevalence of T. gondii infection was 8.64% in the examined raccoon dogs. The prevalences of T. gondii infection were different among cities (ranging from 2.96% in Yantai to 17.62% in Qingdao), genders (female: 7.58%; male: 9.22%), and ages (young: 8.53%; subadult: 7.71%; adult: 7.73%). Region was considered as an important risk factor for T. gondii infection in this study. This is the first report of T. gondii infection in raccoon dogs in China, providing baseline information for prevention and control of T. gondii infection in raccoon dogs in Jilin and Shandong provinces, China.
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Affiliation(s)
- Wen-Bin Zheng
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Lanzhou, People's Republic of China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Wei Cong
- 3 College of Marine Science, Shandong University at Weihai , Weihai, People's Republic of China
| | - Junling Hou
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Lanzhou, People's Republic of China
| | - Jian-Gang Ma
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Lanzhou, People's Republic of China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Xiao-Xuan Zhang
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Lanzhou, People's Republic of China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Xing-Quan Zhu
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Lanzhou, People's Republic of China .,2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China .,4 Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine , Yangzhou, People's Republic of China
| | - Qing-Feng Meng
- 2 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China .,5 Jilin Entry-Exit Inspection and Quarantine Bureau , Changchun, People's Republic of China
| | - Dong-Hui Zhou
- 1 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Lanzhou, People's Republic of China
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Zhang XX, Zheng WB, Ma JG, Yao QX, Zou Y, Bubu CJ, Zhao Q, Zhu XQ. Occurrence and multilocus genotyping of Giardia intestinalis assemblage C and D in farmed raccoon dogs, Nyctereutes procyonoides, in China. Parasit Vectors 2016; 9:471. [PMID: 27576343 PMCID: PMC5004317 DOI: 10.1186/s13071-016-1771-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 08/23/2016] [Indexed: 11/10/2022] Open
Abstract
Background Giardia intestinalis, the only causative agent of human giardiasis, can infect a wide range of animals. As no information concerning the prevalence and genotyping of G. intestinalis in raccoon dogs in China is available, examination of 305 faecal samples from raccoon dogs in Jilin Province (n = 110), Heilongjiang Province (n = 40), Liaoning Province (n = 72), Hebei Province (n = 54) and Shandong Province (n = 29) was conducted to estimate the prevalence of G. intestinalis in raccoon dogs in northern China and identify their genotypes using a genetic approach. Findings Of 305 faecal samples from farmed raccoon dogs, 22 (7.21 %) were detected G. intestinalis-positive by nested PCR amplification of the triosephosphate isomerase (tpi) gene. The prevalence of G. intestinalis was strongly related to the region and season of sampling. All 22 samples were analysed at the tpi, the glutamate dehydrogenase (gdh) and the beta giardin (bg) gene loci, showing 13, 3, 2 subtypes, respectively. The results also demonstrated that two raccoon dogs harboured mixed infections of assemblage C and assemblage D (or mixed C/D), whereas only assemblage C was detected in the remaining 20 samples. Moreover, five new multilocus genotypes, named as MLGs C1-C5, were observed in the assemblage C in the present study. Conclusions This is the first report of G. intestinalis infection in raccoon dogs in China. DNA sequence analysis of the tpi, gdh and bg gene indicated that 13, 3, 2 subtypes were found at these loci, respectively. Furthermore, this is also the first report of five new multilocus genotypes (MLGs C1-C5) in farmed raccoon dogs, which provides baseline data for further studies of the distribution of G. duodenalis in different hosts.
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Affiliation(s)
- Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China
| | - Qiu-Xia Yao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province, 225009, People's Republic of China
| | - Yang Zou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China
| | - Cai-Jia Bubu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China
| | - Quan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, People's Republic of China. .,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province, 225009, People's Republic of China.
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Guo YL, Li SJ, Zhang ZP, Shen ZW, Zhang GS, Yan G, Wang YT, Rao HB, Zheng WB, Wu RH. Parameters of diffusional kurtosis imaging for the diagnosis of acute cerebral infarction in different brain regions. Exp Ther Med 2016; 12:933-938. [PMID: 27446298 PMCID: PMC4950828 DOI: 10.3892/etm.2016.3390] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 04/29/2016] [Indexed: 02/05/2023] Open
Abstract
Diffusional kurtosis imaging (DKI) is a new type diffusion-weighted sequence which measures the non-Gaussianity of water diffusion. The present study aimed to investigate whether the parameters of DKI could distinguish between differences in water molecule diffusion in various brain regions under the conditions of acute infarction and to identify the optimal DKI parameter for locating ischemic lesions in each brain region. A total of 28 patients with acute ischemic stroke in different brain regions were recruited for the present study. The relative values of DKI parameters were selected as major assessment indices, and the homogeneity of background image and contrast of adjacent structures were used as minor assessment indices. According to the brain region involved in three DKI parametric maps, including mean kurtosis (MK), axial kurtosis (Ka) and radial kurtosis (Kr), 112 groups of regions of interest were outlined in the following regions: Corpus callosum (n=17); corona radiata (n=26); thalamus (n=21); subcortical white matter (n=24); and cerebral cortex (n=24). For ischemic lesions in the corpus callosum and corona radiata, significant increases in relative Ka were detected, as compared with the other parameters (P<0.05). For ischemic lesions in the thalamus, subcortical white matter and cerebral cortices, an increase in the three parameters was detected, however this difference was not significant. Minor assessment indices demonstrated that Ka lacked tissue contrast and the background of Kr was heterogeneous; thus, MK was the superior assessment parameter for ischemic lesions in these regions. In conclusion, Ka is better suited for the diagnosis of acute ischemic lesions in highly anisotropic brain regions, such as the corpus callosum and corona radiate. MK may be appropriate for the lesions in low anisotropic or isotropic brain regions, such as the thalamus, subcortical white matter and cerebral cortices.
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Affiliation(s)
- Yue-Lin Guo
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | - Su-Juan Li
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | | | - Zhi-Wei Shen
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | - Gui-Shan Zhang
- College of Engineering, Shantou University, Shantou, Guangdong 515000, P.R. China
| | - Gen Yan
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | - Yan-Ting Wang
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | - Hai-Bing Rao
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | - Wen-Bin Zheng
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
| | - Ren-Hua Wu
- Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, P.R. China
- Correspondence to: Professor Ren-Hua Wu, Department of Radiology, The Second Affiliated Hospital of Shantou University Medical College, 69 Dong Xia Bei Road, Shantou, Guangdong 515000, P.R. China, E-mail:
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Guo YL, Zhang ZP, Zhang GS, Kong LM, Rao HB, Chen W, Wang GW, Shen ZW, Zheng WB, Wu RH. Evaluation of mean diffusion and kurtosis MRI mismatch in subacute ischemic stroke: Comparison with NIHSS score. Brain Res 2016; 1644:231-9. [PMID: 27208488 DOI: 10.1016/j.brainres.2016.05.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 01/26/2016] [Revised: 05/06/2016] [Accepted: 05/11/2016] [Indexed: 02/05/2023]
Abstract
Neurological deterioration (ND) is a devastating complication following ischemic stroke. This study aimed to identify the differences in lesion characteristics in subacute ischemic stroke patients with and without ND using diffusional kurtosis imaging (DKI), as well as to confirm the responsible lesions that may lead to ND, as assessed by the National Institutes of Health Stroke Scale (NIHSS) score. Seventy-nine patients with subacute cerebral infarction were allocated to the ND (-) and ND (+) groups according to the NIHSS score and lesion number. The mean diffusion (MD) lesions were significantly larger than the mean kurtosis (MK) deficits in the ND (+) group (P<0.05); however, there was no significant difference in the ND (-) group (P>0.05). The MD and MK in the lesion recovered to normal levels over time; however, the recovery trends in the ND (+) group were substantially slower than the ND (-) group. The differences between the two groups were only significant regarding the MK (p<0.05). Furthermore, multiple infarction lesions exhibited good consistency in the ND (-) group, but were non-homogeneous in the ND (+) group. To the best of our knowledge, this is the first study to demonstrate that a significant MD/MK mismatch and heterogeneity of multiple ischemic lesions on MK in subacute ischemic stroke may represent a new expansion of an ischemic lesion or acute reinfarction, which is closely related to ND.
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Affiliation(s)
- Yue-Lin Guo
- Department of Radiology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | | | - Gui-Shan Zhang
- Engineering College Shantou University, Shantou, 515000 Guangdong, China
| | - Ling-Mei Kong
- Department of Radiology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | - Hai-Bing Rao
- Department of Radiology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | - Wei Chen
- Department of Neurology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | - Guang-Wen Wang
- Department of Neurology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | - Zhi-Wei Shen
- Department of Radiology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | - Wen-Bin Zheng
- Department of Radiology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China
| | - Ren-Hua Wu
- Department of Radiology, The 2nd Affiliated Hospital, Shantou University Medical College, Shantou, 515000 Guangdong, China.
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Wu YD, Zhou DH, Zhang LX, Zheng WB, Ma JG, Wang M, Zhu XQ, Xu MJ. Recombinase polymerase amplification (RPA) combined with lateral flow (LF) strip for equipment-free detection of Cryptosporidium spp. oocysts in dairy cattle feces. Parasitol Res 2016; 115:3551-5. [DOI: 10.1007/s00436-016-5120-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 05/04/2016] [Indexed: 01/31/2023]
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Zheng WB, Cong W, Meng QF, Ma JG, Wang CF, Zhu XQ, Qian AD. Seroprevalence and Risk Factors of Toxoplasma gondii Infection in Farmed Minks (Neovison vison) in Northeastern and Eastern China. Vector Borne Zoonotic Dis 2016; 16:485-8. [PMID: 27166868 DOI: 10.1089/vbz.2015.1930] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 11/12/2022] Open
Abstract
Toxoplasma gondii is an important intracellular parasite, which can infect endothermic vertebrate animals, including minks (Neovison vison). However, information on T. gondii infection in minks in China is limited. Therefore, we investigated the seroprevalence and risk factors of T. gondii infection in minks in northeastern and eastern China. A total of 1499 mink blood samples were randomly collected from eight cities between March 2014 and January 2015 in northeastern and eastern China, and antibodies to T. gondii were examined using the modified agglutination test. Overall, the seroprevalence of T. gondii infection was 8.14% in the examined minks. The T. gondii seroprevalence was different among cities (ranging from 1.85% in Changchun to 15.75% in Dalian), genders (4.31% in male and 6.22% in female), seasons (spring: 11.64%; summer: 7.34%; autumn: 7.37%; and winter: 7.32%), and ages (young: 5.79%; subadult: 5.03%; and adult: 11.08%). Region and age were considered as risk factors for T. gondii infection. These results provided baseline data for the prevention and control of T. gondii infection in minks in China.
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Affiliation(s)
- Wen-Bin Zheng
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, People's Republic of China .,2 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China
| | - Wei Cong
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, People's Republic of China .,2 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China
| | - Qing-Feng Meng
- 3 Jilin Entry-Exit Inspection and Quarantine Bureau , Changchun, Jilin Province, People's Republic of China
| | - Jian-Gang Ma
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, People's Republic of China .,2 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China
| | - Chun-Feng Wang
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, People's Republic of China
| | - Xing-Quan Zhu
- 2 State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute , Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China .,4 Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine , Yangzhou, Jiangsu Province, People's Republic of China
| | - Ai-Dong Qian
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, Jilin Province, People's Republic of China
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Zhang XX, Cong W, Ma JG, Lou ZL, Zheng WB, Zhao Q, Zhu XQ. First report of Cryptosporidium canis in farmed Arctic foxes (Vulpes lagopus) in China. Parasit Vectors 2016; 9:126. [PMID: 26934975 PMCID: PMC4776383 DOI: 10.1186/s13071-016-1396-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 02/20/2016] [Indexed: 11/17/2022] Open
Abstract
Background Cryptosporidium is an important genus of enteric zoonotic parasites, which can infect a wide range of animals including foxes. Little information is available concerning the prevalence and molecular characterisation of Cryptosporidium spp. in farmed Arctic foxes (Vulpes lagopus) in China. Thus, the objective of the present study was to investigate the prevalence of Cryptosporidium spp. in Arctic foxes in China using nested PCR amplification of the small subunit ribosomal RNA (SSU rRNA) gene. Findings The overall prevalence of Cryptosporidium spp. in Arctic foxes was 15.9 % (48/302), with 12.9 % in male (18/139) and 18.4 % in female (30/163) foxes, respectively. The prevalence in different farms varied from 0 to 31.43 %. The prevalence of infection in different age groups varied from 14.1 % to 19.0 %. Foxes from Hebei Province (7.8 %, 11/141) had a significantly lower Cryptosporidium spp. prevalence than those from Heilongjiang Province (22.9 %, 16/70) and Jilin Province (23.1 %, 21/91) (P= 0.0015). Sequence analysis of the SSU rRNA gene indicated that all the 48 isolates represented C. canis. Conclusions This is the first report of C. canis infection in farmed Arctic foxes in China, which also provides foundation data for preventing and controlling Cryptosporidium infection in foxes, other animals and humans.
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Affiliation(s)
- Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Wei Cong
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China.
| | - Zhi-Long Lou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China.
| | - Quan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
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Zhang XX, Cong W, Liu GH, Ni XT, Ma JG, Zheng WB, Zhao Q, Zhu XQ. Prevalence and genotypes of Enterocytozoon bieneusi in sika deer in Jilin province, Northeastern China. Acta Parasitol 2016; 61:382-8. [PMID: 27078663 DOI: 10.1515/ap-2016-0050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/30/2015] [Indexed: 11/15/2022]
Abstract
Enterocytozoon bieneusi is one of the most important zoonotic pathogen that can infect almost all animals, including humans. However, little information is available regarding prevalence and genotypes of E. bieneusi in sika deer. In the present study, the prevalence of E. bieneusi infection in sika deer in Jilin province, Northeastern China was examined using PCR amplification of the internal transcribed spacer (ITS) region of the ribosomal RNA (rRNA) gene. 23 (7.06%) of 326 samples were tested E. bieneusi-positive, and the risk factor significantly associated with E. bieneusi prevalence was the age of sika deer. Sequence analysis of the ITS rRNA gene suggested that 8 genotypes of E. bieneusi were found in this study, with five known genotypes, namely J (n = 11), BEB6 (n = 4), EbpC (n = 1), CHN-DC1 (n = 1), KIN-1 (n = 1) and three novel genotypes, namely JLD-1 (n = 2), JLD-2 (n = 2) and JLD-3 (n = 1). Phylogenetic analysis indicated that genotypes CHN-DC-1, KIN-1, EbpC, JLD-2 and JLD-3 fell into group 1, while other three genotypes (genotypes J, BEB6 and JLD-1) were clustered into group 2 (so-called bovine-specific groups). These findings indicated the presence of zoonotic E. bieneusi in Jilin province, Northeastern China. Effective strategies should be performed to control E. bieneusi infection in sika deer, other animals and humans.
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Zhang XX, Cong W, Lou ZL, Ma JG, Zheng WB, Yao QX, Zhao Q, Zhu XQ. Prevalence, risk factors and multilocus genotyping of Enterocytozoon bieneusi in farmed foxes (Vulpes lagopus), Northern China. Parasit Vectors 2016; 9:72. [PMID: 26847241 PMCID: PMC4743323 DOI: 10.1186/s13071-016-1356-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/30/2016] [Indexed: 11/30/2022] Open
Abstract
Background Microsporidiosis is a common disease in animals and humans around the world. Enterocytozoon bieneusi is the most common microsporidian species in humans. Many animal species may be a potential source of human microsporidiosis. However, information concerning prevalence and genotypes of E. bieneusi infection in farmed foxes (Vulpes lagopus) is scarce. Therefore, the present study examined prevalence, risk factors and genotypes of E. bieneusi in farmed foxes in northern China using a genetic approach. Results Of 302 fecal samples from farmed foxes, 37 (12.25 %, 95 % CI 8.55–15.95) were PCR-positive for E. bieneusi, and the prevalence was highly associated with the farming mode in that foxes raised outdoors (26.03 % positive, 95 % CI 18.91–33.15) had a significantly higher E. bieneusi prevalence than those raised indoors. Eleven internal transcribed spacer (ITS) genotypes were identified among the positive samples: four known E. bieneusi genotypes (Peru 8, Types IV, CHN-DC1 and D) and seven novel genotypes (NCF1-NCF7). Genotype NCF2 was the commonest (n = 13) and was found in five farms across three provinces (Jilin, Heilongjiang and Hebei). All genotypes belonged to phylogenetic group 1. Multilocus sequence typing (MLST) analyses revealed additional diversity. Conclusions These findings indicate the presence of zoonotic E. bieneusi infection in farmed foxes in northern China. This is also the first report of genotypes Peru8, CHN-DC1 and Type IV, and seven novel genotypes (NCF1-NCF7) in farmed foxes by ITS combining with microsatellite and minisatellite markers for the first time. The results will provide baseline data for preventing and controlling E. bieneusi infection in farmed foxes, other animals and humans.
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Affiliation(s)
- Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Wei Cong
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Zhi-Long Lou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Qiu-Xia Yao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province, 225009, PR China.
| | - Quan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. .,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China. .,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province, 225009, PR China.
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Zhang XX, Tan QD, Zhao GH, Ma JG, Zheng WB, Ni XT, Zhao Q, Zhou DH, Zhu XQ. Prevalence, Risk Factors and Multilocus Genotyping of Giardia intestinalis in Dairy Cattle, Northwest China. J Eukaryot Microbiol 2016; 63:498-504. [PMID: 26729604 DOI: 10.1111/jeu.12293] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 12/22/2015] [Accepted: 12/27/2015] [Indexed: 11/28/2022]
Abstract
Giardia intestinalis is a cosmopolitan protozoan parasite that can infect a range of animals, including dairy cattle. As information regarding the prevalence and genotyping of G. intestinalis infection in dairy cattle in northwestern China is limited, 2,945 feces samples from 1,224 dairy cattle in Gansu Province and from 1,614 in Ningxia Hui Autonomous Region (NXHAR) were examined between December 2012 and March 2014. The overall prevalence of G. intestinalis was 3.63% (107/2,945), with 2.63% and 4.38% in Gansu and NXHAR, respectively. Logistic regression analysis showed region, age and season to be significant risk factors for G. intestinalis infection. Assemblage analysis identified 106 assemblage E and one assemblage A at the triose phosphate isomerase (tpi) locus in this study. Intravariations were also detected at tpi, glutamate dehydrogenase (gdh) and beta giardin (bg) loci within assemblage E, showing seven, three, and five new subtypes, respectively. Moreover, 13 new multilocus genotypes (E20-E32) were observed in assemblage E. Effective strategies and measures should be taken to prevent and control giardiasis in Gansu and NXHAR.
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Affiliation(s)
- Xiao-Xuan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, China
| | - Qi-Dong Tan
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, China.,College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230000, China
| | - Guang-Hui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Jian-Gang Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, China
| | - Wen-Bin Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, China
| | - Xiao-Ting Ni
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, 730030, China
| | - Quan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, China
| | - Dong-Hui Zhou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, China.,College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui Province, 230000, China
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Hu CH, Wang DG, Pan HY, Zheng WB, Zuo AY, Liu JX. Effects of broccoli stem and leaf meal on broiler performance, skin pigmentation, antioxidant function, and meat quality. Poult Sci 2012; 91:2229-34. [PMID: 22912457 DOI: 10.3382/ps.2012-02142] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Three hundred sixty 1-d-old Ross 308 male broilers were used to study the effects of broccoli stem and leaf meal (BSLM) on growth performance, skin pigmentation, antioxidant function, and meat quality. The chicks were fed 4 diets containing different levels (0, 4.0, 8.0, and 12.0%) of BSLM as partial replacement for corn and soybean meal for a period of 42 d. The results showed that dietary supplementation of BSLM had no effect (P > 0.05) on growth performance. As compared with control, dietary 4%, 8%, and 12% BSLM increased (P < 0.05) b value (yellowness) both in shank and breast skin, increased (P < 0.05) the concentrations of xanthophylls in abdominal fat and breast skin, improved (P < 0.05) total antioxidant capability, lowered malondialdehyde concentration, and decreased drip loss percentage of breast muscle. Dietary 8% and 12% BSLM decreased (P < 0.05) shank L values (lightness), increased (P < 0.05) shank a value (redness), and increased (P < 0.05) the activities of superoxide dismutase and catalase of breast muscle as compared with control. The results indicated that dietary supplementation of BSLM in broiler chickens improved the poultry products quality with the more skin pigmentation and the less drip loss percentage of breast meat. The more skin pigmentation mainly related to the high amount of xanthophylls in BSLM. The decreased meat drip loss fed BSLM may be caused by the antioxidative function of BSLM.
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Affiliation(s)
- C H Hu
- College of Animal Science, Zhejiang University, Hangzhou, 310058, China.
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Abstract
BACKGROUND AND PURPOSE DTI can provide information about brain ultrastructure by quantifying water diffusion. Our objective was to assess the value of DTI in detecting the acute effects of alcohol on healthy human brains. MATERIALS AND METHODS Sixteen healthy volunteers were studied with conventional MR imaging and DTI before and 0.5, 1, 2, and 3 hours after the initiation of acute alcohol administration. Two DTI parameters, FA and ADC, were measured in the frontal lobe, internal capsule, external capsule, precentral gyrus, postcentral gyrus, thalamus, middle cerebellar peduncle, and brain stem. BrACs were measured at each time point after drinking to estimate BACs. RESULTS No abnormalities were found by conventional MR imaging at any time point in all subjects. ADC values of the frontal lobe, thalamus, and middle cerebellar peduncle were significantly reduced, reaching a minimum value at 1 or 2 hours, and FA values of the frontal lobe were significantly increased, reaching a maximal value at 0.5 hour in both doses. BrAC (BAC) was significantly increased to reach a peak at 0.5 hour in both doses and decreased gradually. CONCLUSIONS DTI can detect changes in brains after acute alcohol consumption that are not detectable by conventional MR imaging. The frontal lobe, thalamus, and middle cerebellar peduncle are more vulnerable to the effects of acute alcohol consumption. DTI is more effective than BrAC or BAC for the detection of alcohol-induced changes on the human brain.
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Affiliation(s)
- L M Kong
- Department of Radiology, Second Affiliated Hospital, Medical College of Shantou University, Shantou, China
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Chen XK, Xiao YY, Zheng WB, Chen FY, Wu RH. Functional magnetic resonance mapping of motor cortex in patients with mass lesions near primary motor and sensory cortices. Conf Proc IEEE Eng Med Biol Soc 2008; 2006:1877-80. [PMID: 17946484 DOI: 10.1109/iembs.2006.260598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
PURPOSE To study motor cortex mapping in patients with mass lesions near primary motor and sensory cortices with BOLD-fMRI. MATERIAL AND METHODS 18 patients with mass lesions near primary motor and sensory cortices, and 8 healthy volunteers were investigated with fMRI using a 1.5 T GE Signa scanner. The specific task was repetitive selfpaced index finger to thumb opposition with a frequency of approximately 2 Hz. Each task paradigm consisted of twelve 20-second blocks alternating between rest and activation. All functional data was sent to SUN GE Advanced Workstation 4.0 for post processing. RESULTS 14 patients showed functional activation near mass lesion, 4 patients failed to show, and one patient with meningeoma was excluded because of heavy head movement. Of 14 patients, the functional activation of eloquent cortex was different between the group with declination of muscle force and the group with normal muscle force, generally the activated areas of the former were more scattered, dislocated, relative smaller than that of the latter. CONCLUSION fMRI is a valuable method for pre-operative evaluation of neurosurgical patients and probably can evaluate the muscle force pre- and post-operation approximately.
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Affiliation(s)
- X K Chen
- Dept. of Med. Imaging, Shantou Univ, China.
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Zheng WB, Liu GR, Li LP, Wu RH. Prediction of recovery from a post-traumatic coma state by diffusion-weighted imaging (DWI) in patients with diffuse axonal injury. Neuroradiology 2007; 49:271-9. [PMID: 17203299 DOI: 10.1007/s00234-006-0187-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2006] [Accepted: 11/08/2006] [Indexed: 02/05/2023]
Abstract
INTRODUCTION To determine whether diffusion-weighted magnetic resonance (MR) imaging findings combined with initial clinical factors indicate the depth of shearing lesions in the brain structure and therefore relate to coma duration in diffuse axonal injury (DAI). METHODS A total of 74 adult patients (48 male and 26 female) with DAI were examined with conventional MR imaging and diffusion-weighted MR imaging between 2 hours and 20 days after injury. Apparent diffusion coefficient (ADC) maps were obtained and the mean ADC values of each region of interest (ROI) were measured using MRI console software. The involvement of the brainstem, deep gray matter, and corpus callosum was determined for each sequence separately as well as for the combination of all sequences. The correlations between MR imaging findings indicating the presence of apparent brain injury combined with initial clinical factors were determined. RESULTS Clinical characteristics, such as initial score on the Glasgow coma scale (GCS), age and number of all lesions, and ADC scores were predictive of the duration of coma. CONCLUSION It was possible to predict post-traumatic coma duration in DAI from cerebral MR imaging findings combined with clinical prognostic factors in the acute to subacute stage after head injury. Age, ADC scores, GCS score and number of lesions were highly significant in predicting coma duration. The technique presented here might provide a tool for in vivo detection of DAI to allow the prediction of the coma duration during the early stages in patients with traumatic brain injury.
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Affiliation(s)
- W B Zheng
- Department of Radiology, Second Hospital, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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Zheng WB, Liu GR, Kong KM, Wu RH. Coma duration prediction in diffuse axonal injury: analyses of apparent diffusion coefficient and clinical prognostic factors. Conf Proc IEEE Eng Med Biol Soc 2006; 2006:1052-5. [PMID: 17946873 DOI: 10.1109/iembs.2006.259627] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The purpose of this paper is to evaluate the hypothesis that the Apparent Diffusion Coefficient (ADC) values combined with initial clinical factors indicates the depth of shearing lesions in the brain structure and therefore relates to coma duration of diffuse axonal injury (DAI). Seventy-four adult patients (48 male and 26 female patients) with diffuse axonal injury were examined with convention MR imaging and diffusion weighted MR imaging between 2 hours and 20 days after injury. Apparent diffusion coefficient (ADC) maps were obtained and the mean ADC values of each Region of Interest (ROI) were measured using MRI console software. The lesions involvement of brainstem, deep gray matter, and corpus callosum were determined for each sequence separately as well as for the combination of all sequences. The correlations between magnetic resonance (MR) imaging findings of presence of apparent brain injury combined with initial clinical factors were investigated. Clinical characteristics, such as initial score on the Glasgow Coma Scale (GCS), age, and the number of all lesions, ADC scores of the patient in MR findings were predictive of the duration of coma. Post-traumatic coma duration of DAI could be predicted by cerebral MRI findings in the acute to subacute stage after head injury combined with clinical prognostic factors. Age, ADC scores, GCS, number of lesions are highly significant in predicting coma duration. The technique presented herein might provide a tool for in vivo detection of DAI for the coma duration at the early stages in patients with traumatic brain injury.
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Affiliation(s)
- W B Zheng
- Department of Medical Imaging, 2nd Hospital, Shantou University Medical College, Shantou, Guangdong, China.
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Zheng WB, Wang CH, Qiang O, Tang CW. [Inhibitory effects of celecoxib combined with octreotide on growth of multidrug resistant human gastric cancer cell line SGC7901/ADR]. Ai Zheng 2004; 23:1628-32. [PMID: 15601550] [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: 05/01/2023]
Abstract
BACKGROUND & OBJECTIVE Both cyclooxygenase-2 (COX-2) inhibitor and octreotide can inhibit growth of tumor cells. This study was to investigate inhibitory effects of COX-2 inhibitor celecoxib alone, and celecoxib combined with octreotide on growth of multidrug resistant human gastric cancer cell line SGC7901/ADR. METHODS Experimental groups:(1)celecoxib (1 x 10(-4)-1 x 10(-8) mol/L); (2)octreotide (1 x 10(-5)-1 x 10(-9) mol/L); (3)celecoxib (1 x 10(-4)-1 x 10(-8) mol/L) combined with octreotide (1 x 10-6 mol/L);(4)control group (RPMI-1640 medium without serum). The effects of all treatments on SGC7901 cells, and SGC7901/ADR cells were observed. Cell proliferation was measured by (3)H-thymidine incorporation into DNA. The expression of proliferating cell nuclear antigen (PCNA) was detected by immunocytochemistry. Cell apoptosis was measured by TdT-mediated dUTP nick end-labeling assay (TUNEL) and flow cytometry. RESULTS (3)H-thymidine incorporation into SGC7901/ADR cells treated with celecoxib [(471.3+/-79.7) cpm] was significantly lower than that of control group [(917.5+/-130.8) cpm](P< 0.05). When combined with octreotide, celecoxib presented lower (3)H-thymidine incorporation [(220.0+/-19.7)cpm] than it alone with a 53.3% decrease. The concentration of celecoxib in combination group negatively related to synthesis of DNA in SGC7901/ADR cells (r=0.996,P< 0.001). The expression of PCNA in either celecoxib group or combination group markedly decreased. The apoptosis rates of SGC7901/ADR cells induced by celecoxib alone, and combination treatment were 32.9%, and 52.5%. CONCLUSION Celecoxib combined with octreotide may enhance inhibition of growth of multidrug resistant human gastric cancer cells. The mechanism may be related with inhibiting DNA synthesis, and inducing apoptosis.
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Affiliation(s)
- Wen-Bin Zheng
- Division of Peptides Related with Human Diseases, Key Laboratory of Biotherapy of Human Diseases, Ministry of Education,West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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