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Li D, Li DN, Liu XY, Song YH, Liu XT, Sehrish S, Jia YX, Zong Y, Li JM, Shi K, Leng X, Liu F, Diao NC, Zeng FL, Gong QL, Du R. Prevalence of Mycobacterium bovis in deer in mainland China: a systematic review and meta-analysis. Front Vet Sci 2024; 11:1333975. [PMID: 38440384 PMCID: PMC10909987 DOI: 10.3389/fvets.2024.1333975] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Background Deer tuberculosis is a chronic zoonotic infectious disease, despite the existence of socio-economic and zoonotic risk factors, but at present, there has been no systematic review of deer tuberculosis prevalence in mainland China. The aim of this meta-analysis was to estimate the overall prevalence of deer TB in mainland China and to assess possible associations between potential risk factors and the prevalence of deer tuberculosis. Methodology This study was searched in six databases in Chinese and English, respectively (1981 to December 2023). Four authors independently reviewed the titles and abstracts of all retrieved articles to establish the inclusion exclusion criteria. Using the meta-analysis package estimated the combined effects. Cochran's Q-statistic was used to analyze heterogeneity. Funnel plots (symmetry) and used the Egger's test identifying publication bias. Trim-and-fill analysis methods were used for validation and sensitivity analysis. we also performed subgroup and meta-regression analyses. Results In this study, we obtained 4,400 studies, 20 cross-sectional studies were screened and conducted a systematic review and meta-analysis. Results show: The overall prevalence of tuberculosis in deer in mainland China was 16.1% (95% confidence interval (CI):10.5 24.6; (Deer tuberculosis infected 5,367 out of 22,215 deer in mainland China) 5,367/22215; 1981 to 2023). The prevalence in Central China was the highest 17.5% (95% CI:14.0-21.9; 63/362), and among provinces, the prevalence in Heilongjiang was the highest at 26.5% (95% CI:13.2-53.0; 1557/4291). Elaphurus davidianus was the most commonly infected species, with a prevalence of 35.3% (95% CI:18.5-67.2; 6/17). We also assessed the association between geographic risk factors and the incidence of deer tuberculosis. Conclusion Deer tuberculosis is still present in some areas of China. Assessing the association between risk factors and the prevalence of deer tuberculosis showed that reasonable and scientific-based breeding methods, a suitable breeding environment, and rapid and accurate detection methods could effectively reduce the prevalence of deer tuberculosis. In addition, in the management and operation of the breeding base, improving the scientific feed nutrition standards and establishing comprehensive standards for disease prevention, immunization, quarantine, treatment, and disinfection according to the breeding varieties and scale, are suggested as ways to reduce the prevalence of deer tuberculosis.
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Affiliation(s)
- Dong Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Dan-Ni Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Xin-Yue Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yu-Hao Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Xue-Tong Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Siddique Sehrish
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yu-Xin Jia
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Ying Zong
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Jian-Ming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Xue Leng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Fei Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Nai-Chao Diao
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Fan-Li Zeng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Qing-Long Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
| | - Rui Du
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, China
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Li LM, Wang Q, Shi JF, Li T, Zhao B, Ma QX, Liu HY, Su N, Cai RP, Zeng FL, Gong QL, Shi K, Li JM, Liu F, Du R. Seroprevalence and potential risk factors of brucellosis in sheep from America, Africa and Asia regions: A systematic review and meta-analysis. Res Vet Sci 2023; 165:105048. [PMID: 37866007 DOI: 10.1016/j.rvsc.2023.105048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 10/03/2023] [Accepted: 10/08/2023] [Indexed: 10/24/2023]
Abstract
BACKGROUND Brucellosis, a neglected and global zoonotic disease, infect a variety of mammals, among which sheep are one of the main hosts. This disease results in huge economic losses and is a widespread concern around the world. RESULT Based on the selection criteria, 40 articles from 2010 to 2021 of five databases (CNKI, Wanfang, VIP, PubMed and Science Direct) reported in America, Africa and Asia were included. The data showed that during this period, the overall seroprevalence of sheep brucellosis on these three continents was 6.2%. At the regional level, sheep brucellosis had the highest seroprevalence (8.5%) in Africa and the lowest seroprevalence (1.9%) in the Americas. With regard to the age of the sheep, the seroprevalence was significantly higher in adult sheep (15.5%) than in lambs (8.6%). Further, the seroprevalence was significantly higher in sheep that had abortion (44.3%) than in pregnant (13.0%) and non-pregnant sheep (9.5%). With regard to herd size, herds with >20 sheep (35.4%) had a significantly higher seroprevalence than herds with <20 sheep (16.8%). In terms of farming and grazing mode, free-range rearing (8.4%) was associated with a significantly higher seroprevalence than intensive farming (2.8%), and mixed grazing (37.0%) was associated with a significantly higher seroprevalence than single grazing (5.7%). CONCLUSION Sheep brucellosis is widely distributed in sheep-rearing regions of America, Africa and Asia, and sheep are susceptible to brucellosis by themselves or from other infectious sources. Therefore, timely monitoring of ovine brucellosis and improving farming and grazing patterns are critical to reducing the prevalence of brucellosis.
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Affiliation(s)
- Lian-Min Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Qi Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Jun-Feng Shi
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Ting Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Bo Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Qing-Xia Ma
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Hong-Ying Liu
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Nuo Su
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Ruo-Peng Cai
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Fan-Li Zeng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Qing-Long Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Jian-Ming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China.
| | - Fei Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China.
| | - Rui Du
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China; Jilin Provincial Engineering Research Center for Efficient Breeding and Product Development of Sika Deer, Changchun, Jilin Province 130118, China; Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, Jilin Province 130118, China.
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Zhao D, Song YH, Li D, Zhang R, Xu JB, Shi K, Li JM, Leng X, Zong Y, Zeng FL, Gong QL, Du R. Mycobacterium tuberculosis Rv3435c regulates inflammatory cytokines and promotes the intracellular survival of recombinant Mycobacteria. Acta Trop 2023; 246:106974. [PMID: 37355194 DOI: 10.1016/j.actatropica.2023.106974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/14/2023] [Accepted: 06/18/2023] [Indexed: 06/26/2023]
Abstract
Mycobacterium tuberculosis is a pathogenic bacterium that is parasitic in macrophages and show high adaptation to the host's immune response. It can also trigger a complex immune response in the host. This relies on proteins encoded by a series of M. tuberculosis-encoded virulence genes. We found that the M. tuberculosis Rv3435c gene is highly conserved among pathogenic mycobacteria, and might be a virulence gene. To explore the gene function of Rv3435c, we used Mycobacterium smegmatis to construct a recombinant mycobacterium expressing Rv3435c heterologously. The results that Rv3435c is a cell wall-related protein that changes bacterial and colony morphology, inhibits the growth rate of recombinant mycobacteria, and enhances their resistance to various stresses. We also found that the fatty acid levels of the recombinant strain changed. Simultaneously, Rv3435c can inhibit the expression and secretion of inflammatory factors and host cell apoptosis, and enhance the survival of recombinant bacteria in macrophages. Experimental data indicated that Rv3435c might play an important role in Mycobacterium tuberculosis infection.
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Affiliation(s)
- Dan Zhao
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Ginseng and Antler Products Testing Center of the Ministry of Agricultural PRC, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Yu-Hao Song
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Dong Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Rui Zhang
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Jin-Biao Xu
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Jian-Ming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Xue Leng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Ying Zong
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China
| | - Fan-Li Zeng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China.
| | - Qing-Long Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China.
| | - Rui Du
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China; Laboratory of Production and Product Application of Sika Deer of Jilin Province, Jilin Agricultural University, Changchun, Jilin Province, 130118, P.R. China.
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Zhao D, Song YH, Song JM, Shi K, Li JM, Diao NC, Zong Y, Zeng FL, Du R. The effect of fibroblast growth factor 21 on a mouse model of bovine viral diarrhea. Front Vet Sci 2023; 10:1104779. [PMID: 36968461 PMCID: PMC10035660 DOI: 10.3389/fvets.2023.1104779] [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] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/20/2023] [Indexed: 03/11/2023] Open
Abstract
Previously, we researched that bovine viral diarrhea virus (BVDV) induced a very significant increase in fibroblast growth factor 21 (FGF21) expression in mouse liver and that FGF21 was increased in the peripheral blood of BVD cattle and BVD mice. To determine the role of FGF21 in relieving clinical symptoms and inhibiting the intestinal damage caused by BVDV in BVD development in mice, BALB/c mice were intraperitoneally injected with cytopathic biotype (cp) BVDV-LS01 (isolated and identified by our group) to establish a BVD mouse model. The role of FGF21 in the BVD mouse model was investigated by injecting the mice with FGF21. The animals were divided into control, BVDV challenge, BVDV + FGF21, BVDV + FGF21Ab (anti-FGF21 antibody), and BVDV + IgG (immunoglobulin G) groups. The stool consistency, the degree of bloody diarrhea, histopathological changes, inflammatory cell infiltration, weight loss percentage, and detection of BVDV in the feces of the mice were examined, and the pathological changes and inflammatory cytokine expression were analyzed. The results showed that after BVDV challenge, the average BVD mouse model score of the BVDV mice was 11.6 points. In addition to mild diarrhea and tissue damage, BVDV was detected in the stools of 13 BVDV mice. Only two mice in the control group had scores (both, 1 point each). The comprehensive scoring results demonstrated the successful establishment of the BVD mouse model. FGF21 alleviated the clinical symptoms in the BVD mice and significantly improved weight loss. Furthermore, FGF21 inhibited the BVDV-induced leukocyte, platelet, and lymphocyte reduction while inhibiting the expression of BVDV-induced inflammatory factors. In the BVD mice, FGF21 promoted duodenal epithelial cell proliferation, thereby significantly improving the damage to the cells. In conclusion, FGF21 exerted a good therapeutic effect on the BVD mouse model.
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Affiliation(s)
- Dan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yu-Hao Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Jin-Ming Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Kun Shi
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
- Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Jilin Agricultural University, Changchun, China
| | - Jian-Ming Li
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
- Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Jilin Agricultural University, Changchun, China
| | - Nai-Chao Diao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
- Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Jilin Agricultural University, Changchun, China
| | - Ying Zong
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
- Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Jilin Agricultural University, Changchun, China
| | - Fan-Li Zeng
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
- Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Jilin Agricultural University, Changchun, China
- The Ministry of Education Key Laboratory of Animal Production and the Product Quality and Safety, Jilin Agricultural University, Changchun, China
- *Correspondence: Fan-Li Zeng
| | - Rui Du
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
- Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Jilin Agricultural University, Changchun, China
- The Ministry of Education Key Laboratory of Animal Production and the Product Quality and Safety, Jilin Agricultural University, Changchun, China
- Rui Du
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Abstract
Cholangiocarcinoma is a general term for intrahepatic and extrahepatic malignant tumors deriving in the biliary system. According to the location, it is divided into intrahepatic cholangiocarcinoma, hilar cholangiocarcinoma, and distal cholangiocarcinoma. Progressive cholangiocarcinoma yields poor outcomes with radiotherapy; therefore, there is an urgent need for new therapeutic breakthroughs. Immune checkpoint inhibitor (ICI) therapy brings the treatment for cancer into a new field, with the use of drugs targeting PD-1/PD-L1 and CTLA-4 considerably extending the survival of patients with melanoma, lung cancer, and other solid tumors. The FDA has approved the application of pembrolizumab for solid tumors with high microsatellite instability and defective mismatch repair, including cholangiocarcinoma. Moreover, the combination of ICIs with chemotherapy and radiation therapy showed good promise. The aim of the present study was to review the application of ICIs in the treatment of cholangiocarcinoma and to summarize the reported individualized immunotherapy-based protocols and ongoing clinical trials for clinical reference.
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Affiliation(s)
- Fan-Li Zeng
- The Second Hospital of Qinhuangdao, Qinhuangdao, Hebei 066600, China
| | - Jing-Fang Chen
- Easter Theater General Hospital, Nanjing, Jiangsu 210016, China
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Song YH, Li D, Zhou Y, Zhao B, Li JM, Shi K, Zhao D, Sun JY, Zeng FL, Du R. Prevalence of Bovine Tuberculosis in Yaks Between 1982 and 2020 in Mainland China: A Systematic Review and Meta-Analysis. Vector Borne Zoonotic Dis 2021; 21:397-405. [PMID: 33646056 DOI: 10.1089/vbz.2020.2687] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Bovine tuberculosis (bTB) is a major chronic bacterial disease in cattle and is the major economic and animal welfare issue in the world. Although the economic costs and public health safety risks associated with the disease are considerable, the overall epidemiology of the Chinese yak (Bos grunniens) bTB is unclear. To fully reveal the basic prevalence of yak bTB in different regions of China, we searched five databases including PubMed, Science Direct, CNKI (China National Knowledge Infrastructure), Wanfang and Chongqing VIP. Based on the incidence and prevalence of yak tuberculosis in China from 1982 to 2020, a meta-analysis of yak bTB in China was established for the first time. By formulating the search formula, 97 studies were searched in five databases. According to the established exclusion criteria and excluded comments and repeated and irrelevance research, we finally selected 19 cross-sectional studies, which showed the prevalence of bTB in Chinese yaks. Random-effect meta-regression model analysis showed that the estimated prevalence of 122,729 yaks in China was 1.0 (95% confidence interval [CI]: 0.0-1.0). The regional prevalence varies greatly, northwest China prevalence rate 0. 39% (95% CI: 0.2-0. 64) and southwest China prevalence rate 2.59% (95% CI: 1.94-3.34); in terms of province level, the prevalence was highest in Tibet 2.59% (95% CI: 1.94-3.34), followed by Xinjiang 2.36% (95% CI: 0.86-4.58), and Shanxi has the lowest 0.00% (95% CI: 0.00-0.98). This systematic review and meta-analysis identified the estimated prevalence of bTB in Chinese yaks and estimated the underlying factors associated with bTB, including geographic location, sampling year, age, and TB detection method. Provide evidence to plan corresponding disease control strategies for policymakers and to assess future economic risks accurately.
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Affiliation(s)
- Yu-Hao Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Dong Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Ying Zhou
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Bo Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Jian-Ming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Dan Zhao
- Research Center of Agriculture Quality Standard and Detecting Technique, Jilin Agriculture University, Changchun, China
| | - Jiang-Yang Sun
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
| | - Fan-Li Zeng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, China.,Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Changchun, China
| | - Rui Du
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, China.,Jilin Province Sika Deer Efficient Breeding and Product Development Technology Engineering Research Center, Changchun, China
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7
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Zeng FL, Ren ZY, Li Y, Zeng JY, Jia MW, Miao J, Hoffmann A, Zhang W, Wu YZ, Yuan Z. Intrinsic Mechanism for Anisotropic Magnetoresistance and Experimental Confirmation in Co_{x}Fe_{1-x} Single-Crystal Films. Phys Rev Lett 2020; 125:097201. [PMID: 32915598 DOI: 10.1103/physrevlett.125.097201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 07/13/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Using first-principles transport calculations, we predict that the anisotropic magnetoresistance (AMR) of single-crystal Co_{x}Fe_{1-x} alloys is strongly dependent on the current orientation and alloy concentration. An intrinsic mechanism for AMR is found to arise from the band crossing due to magnetization-dependent symmetry protection. These special k points can be shifted towards or away from the Fermi energy by varying the alloy composition and hence the exchange splitting, thus allowing AMR tunability. The prediction is confirmed by delicate transport measurements, which further reveal a reciprocal relationship of the longitudinal and transverse resistivities along different crystal axes.
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Affiliation(s)
- F L Zeng
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - Z Y Ren
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Y Li
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Y Zeng
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - M W Jia
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - J Miao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - A Hoffmann
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Zhang
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y Z Wu
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - Z Yuan
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
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Zhou HC, Du R, Wang H, Zeng FL, Shi K, Li JM, Zong Y. [Advance in studies on pharmacokinetics of baicalin]. Zhongguo Zhong Yao Za Zhi 2018; 43:684-688. [PMID: 29600641 DOI: 10.19540/j.cnki.cjcmm.20171106.011] [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] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Indexed: 11/18/2022]
Abstract
Scutellariae baicalensis is one of the most important traditional Chinese medicinal herbs, mainly distributed in Shandong and Hebei provinces. It has significant pharmacological effects such as antimicrobial activity, anti-inflammatory and antioxidation. Baicalin is one of its main effective components. However, baicalin's low bioavailability has restricted its clinical application. In recent decades, extensive studies have been carried out on the metabolism of baicalin in vivo at home and abroad. In order to provide scientific references for baicalin's further studies, this paper would not only review the advances in pharmacokinetics research of baicalin and Chinese herbal preparations containing baicalin, but also make a summary on research status of baicalin.
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Affiliation(s)
- Hong-Chao Zhou
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun 130118, China
| | - Rui Du
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education of the People's Republic of China, Laboratory of Production and Product Application of Sika Deer of Jilin Province, Changchun 130118, China
| | - Hui Wang
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun 130118, China
| | - Fan-Li Zeng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun 130118, China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jian-Ming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun 130118, China
| | - Ying Zong
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun 130118, China
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Liu F, Li JM, Zeng FL, Zong Y, Leng X, Shi K, Diao NC, Li D, Li BY, Zhao Q, Du R. Prevalence and Risk Factors of Brucellosis, Chlamydiosis, and Bluetongue Among Sika Deer in Jilin Province in China. Vector Borne Zoonotic Dis 2018; 18:226-230. [PMID: 29595405 DOI: 10.1089/vbz.2017.2226] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 11/12/2022] Open
Abstract
Brucellosis and chlamydiosis are important zoonotic diseases and bluetongue virus (BTV) is an arthropod-borne viral disease of ruminants. They are widely distributed around the world, cause large economic losses, and significant harmful effects on humans. However, epidemiological information relating to transmission from commercial sika deer in China is limited. Therefore, from 2016 to 2017, 458 sika deer blood samples were collected from three cities in Jilin Province in China. The Brucella antigen and specific antibodies to Chlamydia and BTV were examined using RT-PCR, indirect hemagglutination assay, and ELISA, respectively. The prevalence of Brucella was found to be 12.9% (59/458) and the seroprevalence of Chlamydia and BTV was 14.4% (66/458) and 17.0% (78/458), respectively. Seasonality was considered a risk factor for the presence of Brucella or BTV in sika deer and the region was considered a risk factor for Chlamydia infection. These data provides reference values for both further research and disease control.
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Affiliation(s)
- Fei Liu
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Jian-Ming Li
- 2 College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun, People's Republic of China
| | - Fan-Li Zeng
- 2 College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun, People's Republic of China
| | - Ying Zong
- 2 College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun, People's Republic of China
| | - Xue Leng
- 2 College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun, People's Republic of China
| | - Kun Shi
- 2 College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun, People's Republic of China
| | - Nai-Chao Diao
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Dong Li
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Bo-Yu Li
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Quan Zhao
- 1 College of Animal Science and Technology, Jilin Agricultural University , Changchun, People's Republic of China
| | - Rui Du
- 2 College of Chinese Medicinal Materials, Jilin Agricultural University , Changchun, People's Republic of China
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Zeng FL, Xiang YF, Liang ZR, Wang X, Huang DE, Zhu SN, Li MM, Yang DP, Wang DM, Wang YF. Anti-Hepatitis B Virus Effects of Dehydrocheilanthifoline fromCorydalis saxicola. Am J Chin Med 2013; 41:119-30. [PMID: 23336511 DOI: 10.1142/s0192415x13500092] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this report, the anti-hepatitis B virus (HBV) activity of dehydrocheilanthifoline (DHCH), a quaternary ammonium alkaloid isolated from the traditional Chinese medicine Corydalis saxicola Bunting (Papaveraceae), was determined in vitro. Following six days of treatment, DHCH efficiently suppressed the secretions of HBsAg and HBeAg in HepG2.2.15 cell cultures, with a half-maximal inhibitory concentration (IC50) of 15.84 and 17.12 μM, and with a therapeutic index (TI) of 7.32 and 6.77, respectively. Further studies revealed that DHCH reduced the levels of extracellular DNA, intracellular DNA and covalently closed circular DNA (cccDNA) of HBV in a dose-dependent and time-dependent manner, with IC50values of 15.08, 7.62 and 8.25 μM, respectively after six days of treatment. In contrast, the level of viral pre-genomic RNA (pgRNA) increased 6.13-fold after treatment with DHCH. Together, it was demonstrated for the first time that DHCH could significantly inhibit the replication of HBV, which warrants further studies on the antiviral mechanisms of DHCH, and suggests that it may be a promising candidate in the therapy of HBV infection.
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Affiliation(s)
- Fan-Li Zeng
- Jinan Biomedicine Research and Development Center, Jinan University, Guangzhou 510632, P. R. China
- College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China
| | - Yang-Fei Xiang
- Jinan Biomedicine Research and Development Center, Jinan University, Guangzhou 510632, P. R. China
- College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China
| | - Zhen-Ran Liang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510632, P. R. China
| | - Xiao Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510632, P. R. China
| | - Dan-e Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510632, P. R. China
| | - Sui-Nan Zhu
- Guangzhou Overseas Chinese Hospital, The First Affiliated Hospital of Jinan University, Guangzhou 510632, P. R. China
| | - Min-Min Li
- Guangzhou Overseas Chinese Hospital, The First Affiliated Hospital of Jinan University, Guangzhou 510632, P. R. China
| | - De-Po Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510632, P. R. China
| | - Dong-Mei Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510632, P. R. China
| | - Yi-Fei Wang
- Jinan Biomedicine Research and Development Center, Jinan University, Guangzhou 510632, P. R. China
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Ju HQ, Wang SX, Xiang YF, Liu Z, Liu JY, Chen ZP, Zeng FL, Xia M, Liu ZH, Xing GW, Wang SY, Wang YF. BJ-B11, a novel Hsp90 inhibitor, induces apoptosis in human chronic myeloid leukemia K562 cells through the mitochondria-dependent pathway. Eur J Pharmacol 2011; 666:26-34. [DOI: 10.1016/j.ejphar.2011.05.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 05/04/2011] [Accepted: 05/11/2011] [Indexed: 01/08/2023]
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12
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Pei Y, Xiang YF, Chen JN, Lu CH, Hao J, Du Q, Lai CC, Qu C, Li S, Ju HQ, Ren Z, Liu QY, Xiong S, Qian CW, Zeng FL, Zhang PZ, Yang CR, Zhang YJ, Xu J, Kitazato K, Wang YF. Pentagalloylglucose downregulates cofilin1 and inhibits HSV-1 infection. Antiviral Res 2010; 89:98-108. [PMID: 21108969 DOI: 10.1016/j.antiviral.2010.11.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 10/17/2010] [Accepted: 11/17/2010] [Indexed: 10/25/2022]
Abstract
To investigate the anti-herpesvirus mechanism of pentagalloylglucose (PGG), we compared the proteomic changes between herpes simplex virus type 1 (HSV-1) infected MRC-5 cells with or without PGG-treatment, and between non-infected MRC-5 cells with or without PGG-treatment by 2-DE and MS-based analysis. Differentially expressed cellular proteins were mainly involved with actin cytoskeleton regulation. Significantly, PGG can down-regulate cofilin1, a key regulator of actin cytoskeleton dynamics. PGG can inhibit HSV-1-induced rearrangements of actin cytoskeleton which is important for infectivity. Furthermore, cofilin1 knockdown by siRNA also inhibited the HSV-1-induced actin-skeleton rearrangements. Both PGG-treatment and cofilin1 knockdown can reduce HSV-1 DNA, mRNA, protein synthesis and virus yields. Altogether, the results suggested that down-regulating cofilin1 plays a role in PGG inhibiting HSV-1 infection. PGG may be a promising anti-herpesvirus agent for drug development.
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Affiliation(s)
- Ying Pei
- Biomedicine Research and Development Center of Jinan University, Guangzhou Huangpu Road West 601, Guangzhou, Guangdong 510632, China
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13
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Abstract
Scanning electron microscope and energy-dispersive X-ray analysis were used to study the tissular distributions of elements Na, Mg, Cl, K, Ca, Mn, and Fe in leaves of cucumber seedlings in the absence or presence of La3+. The results showed that the atomic percentages of Na, Mg, Cl, K, and Ca were basically reduced and those of Mn and Fe were increased in the presence of La3+; in addition, at 0.02 mM La3+, the reduced or increased degrees were higher than those at 2.0 mM La3+. The effects of La3+ on ion absorption were similar to those of Ca2+, suggesting that the rare earth element lanthanum affects the plant physiological mechanism by regulating the Ca2+ level in plant cell.
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Affiliation(s)
- F L Zeng
- Department of Biology, Lanzhou University, China
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14
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Abstract
The abscisic acid (ABA) content of the root tips of four crops grown in lanthanide chloride solution and their root lengths had been determined. At lanthanide concentrations of 5 and 10 ppm, these crops all grew well and the ABA decreased. At higher lanthanide concentrations (100-500 ppm), the ABA is increased again. At these concentrations of lanthanum chloride, the photosystems I and II (PSI and PSII) and whole electron chain transport activities were inhibited. PSII was more sensitive than PSI, and it is concluded that La3+ acts on the diphenylcarbazide (DPC) action place of PSII oxidizing site.
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Affiliation(s)
- F L Zeng
- Department of Biology, Lanzhou University, China
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15
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Bi ZQ, Zeng FL. [Comparison between the determination of excreted urea nitrogen and nitrogen balance of patients with chronic renal failure]. Zhonghua Nei Ke Za Zhi 1987; 26:220-2, 255-6. [PMID: 3652823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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