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968 results on '"Zhang, Longxian"'

154. Prevalence and molecular characterization of Cyclospora cayetanensis, Henan, China

Author

Zhou, Yang, Lv, Biao, Wang, Qiang, Wang, Rongjun, Jian, Fuchun, Zhang, Longxian, Ning, Changshen, Fu, Kanda, Wang, Yaqiang, Qi, Meng, Yao, Huixia, Zhao, Jinfeng, Zhang, Xiaoshan, Sun, Yanru, Shi, Ke, Arrowood, Michael J., and Xiao, Lihua

Subjects
Waterborne infections -- Care and treatment -- Health aspects -- Chemical properties, Medical research -- Health aspects -- Chemical properties, Medicine, Experimental -- Health aspects -- Chemical properties, Genes -- Health aspects -- Chemical properties, Prevalence studies (Epidemiology) -- Health aspects -- Chemical properties, RNA -- Health aspects -- Chemical properties, Health
Abstract

Cyclospora cayetanensis, a protozoan that causes watery diarrhea, fatigue, abdominal pain, weight loss, and inappetence, is endemic to some nonindustrialized countries (1-4). In industrialized countries, the infection has been traditionally [...]

Published
2011
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166. Genotyping and identification of Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi from free–range Tibetan yellow cattle and cattle–yak in Tibet, China

Author

Wu, Yayun, primary, Chen, Yuancai, additional, Chang, Yankai, additional, Zhang, Xiangqian, additional, Li, Dongfang, additional, Wang, Lu, additional, Zheng, Shuangjian, additional, Wang, Rongjun, additional, Zhang, Sumei, additional, Li, Jiakui, additional, and Zhang, Longxian, additional

Published
2020
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173. Protist 10,000 Genomes Project

Author

Miao, Wei, primary, Song, Lirong, additional, Ba, Sang, additional, Zhang, Longxian, additional, Guan, Guiquan, additional, Zhang, Zhang, additional, and Ning, Kang, additional

Published
2020
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174. Seasonal monitoring of Cryptosporidium species and their genetic diversity in neonatal calves on two large‐scale farms in Xinjiang, China.

Author

Zhang, Kuankuan, Wu, Yayun, Jing, Bo, Xu, Chunyan, Chen, Yuancai, Yu, Fuchang, Wei, Zilin, Zhang, Ying, Cui, Zhaohui, Qi, Meng, and Zhang, Longxian

Subjects
GENETIC variation, SPECIES diversity, CRYPTOSPORIDIUM, CALVES, SEASONS
Abstract

To find out whether and how the prevalence and genetic diversity of Cryptosporidium in neonatal calves vary with the season, 380 fecal samples from neonatal calves on two large‐scale farms in Xinjiang (Alar and Wensu) were studied using molecular biology techniques. Cryptosporidium was detected in 48.7% (185/380) of the samples and was most frequent in summer (56.8%), followed by spring (50.0%), winter (46.8%), and autumn (41.7%; p > 0.05). Calves with diarrhea seem to be more likely infected by Cryptosporidium than those without diarrhea (p < 0.01). We also found that C. parvum (n = 173), C. bovis (n = 7), and C. ryanae (n = 3) were the Cryptosporidium species detected in this study, and co‐infections of these three species (n = 2) were also identified. Two subtypes (IIdA14G1 and IIdA15G1) of C. parvum were identified, and both can infect human. These results also show that neonatal calves commonly suffer diarrhea caused by C. parvum throughout the year. [ABSTRACT FROM AUTHOR]

Published
2022
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175. Isolation, genotyping and virulence determination of a Toxoplasma gondii strain from non‐human primate from China.

Author

Xin, Shilin, Jiang, Nan, Yang, Liulu, Zhu, Niuping, Huang, Wei, Li, Junbao, Zhang, Longxian, Su, Chunlei, and Yang, Yurong

Subjects
TOXOPLASMA gondii, CERCOPITHECIDAE, PRIMATES, WARM-blooded animals, RHESUS monkeys, AGGLUTINATION tests
Abstract

Toxoplasma gondii infects almost all warm‐blooded animals, including humans and non‐human primates. Many cases of T. gondii infection in non‐human primates have been reported worldwide. In this study, 15 monkeys were collected from zoos in Henan Province between 2016 and 2019. A modified agglutination test (MAT) (cut‐off: 1:8) showed that 46.7% (7/15) of the heart juices had T. gondii IgG antibody transformation. One viable T. gondii strain was successfully isolated from the myocardium of a rhesus monkey by bioassay in mice. This strain was designated as TgMonkeyCHn1. The DNA of T. gondii tachyzoites was obtained using cell cultures, and the genotype of this strain was determined by PCR‐RFLP with 10 markers and the virulence genes ROP5 and ROP18. The genotype and ROP18/ROP5 (3/6) of TgMonkeyCHn1 did not match any known genotypes. In addition, the TgMonkeyCHn1 formed low number of tissue cysts and was non‐lethal to mice. To our knowledge, this is the first T. gondii strain isolated from Old World monkeys. Rhesus monkey is a new host record for T. gondii. [ABSTRACT FROM AUTHOR]

Published
2022
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197. Molecular characterization and distribution of Cryptosporidium spp., Giardia duodenalis, and Enterocytozoon bieneusi from yaks in Tibet, China

Author

Wu, Yayun, primary, Chang, Yankai, additional, Zhang, Xiangqian, additional, Chen, Yuancai, additional, Li, Dongfang, additional, Wang, Lu, additional, Zheng, Shuangjian, additional, Wang, Rongjun, additional, Zhang, Sumei, additional, Jian, Fuchun, additional, Ning, Changshen, additional, Li, Jiakui, additional, and Zhang, Longxian, additional

Published
2019
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