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Feng XG, Chen J, Hou L, Dai Q. Effects of Long Non-Coding RNA TRIM52 Antisense RNA 1 on the Proliferation, Apoptosis and Radiosensitivity of Colorectal Cancer Cells by Targeting MicroRNA-361-5p. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.spl.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Huang NB, Feng XG, Dong Y, Zhang Y, Wu MS. [Survival analysis of laboratory - bred smooth - shelled Oncomelania snails in Yunnan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:198-199. [PMID: 32458612 DOI: 10.16250/j.32.1374.2019075] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To investigate the survival period of Yunnan Province-derived smooth-shelled Oncomelania snails bred in laboratory. METHODS Oncomelania snails were sampled from Heqing and Yongsheng counties where schistosomiasis is endemic, and uninfected adult snails were collected and bred in laboratory. The survival period of snails sampled from these two counties was compared. RESULTS The 1-, 2-, 3- and 4-year survival rates of laboratory-bred smooth-shelled snails sampled from Yunnan Province were 72.36%, 29.11%, 13.08% and 0.21%, respectively, and were 74.66%, 38.91%, 19.46% and 0.45% for snails derived from Heqing County, and 70.36%, 20.55%, 7.51% and 0 for snails sampled from Yongsheng County, respectively. The mean and median survival period of Yunnan Province-derived adult snails was 20.90 and 20.67 months, and there were significant differences between the snails sampled from Heqing and Yongsheng counties in terms of the mean (22.94 vs. 19.13 months, P < 0.05) and median survival period (21.63 vs. 19.81 months, P < 0.05). CONCLUSIONS The mean survival period of Yunnan Province-derived smooth-shelled adult snails is approximately 20 months in laboratory, and the survival varies in geographical areas.
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Affiliation(s)
- N B Huang
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali 671000, China
| | - X G Feng
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali 671000, China
| | - Y Dong
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali 671000, China
| | - Y Zhang
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali 671000, China
| | - M S Wu
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali 671000, China
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Feng XG, Lin GY, Tang YS, Wu PF. Cytomegalovirus-associated acute respiratory failure in lupus patients: case reports in relation to cytomegalovirus biology. Lupus 2019; 28:1354-1359. [PMID: 31551032 DOI: 10.1177/0961203319876990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
With the wide use of immunosuppressive agents, life-threatening cytomegalovirus-associated acute respiratory failure occurs frequently. However, this condition is yet to be fully recognized and the therapeutic approach to it can only be based on comprehensive protocols rather than the biological characteristics of cytomegalovirus. We describe three acute respiratory failure events that were related to the pathogenicity of cytomegalovirus, the primary cytopathic effect and secondary antiviral immunity-mediated damage. All cytomegalovirus infection occurred after immunosuppressive usage while the acute respiratory failure events took place in different clinical settings. The first acute respiratory failure event originated from the immunoinflammatory response after cytomegalovirus infection was circumscribed, while the second resulted from cytomegalovirus reactivation and the third was caused by the combined effect of acute cytomegalovirus infection and the subsequent immunoinflammatory response. According to the clinical setting, corresponding therapeutic approaches (sequential or combined strategy) were carried out. All the patients here presented were responsive to the above therapeutic strategies. Consequently, cytomegalovirus-associated acute respiratory failure in systemic lupus erythematosus patients should be carefully differentiated and a sequential or combined strategy should be carried out according to the clinical setting. Overall, we find that there are three patterns of cytomegalovirus-associated acute respiratory failure in systemic lupus erythematosus patients and propose a novel therapeutic strategy in relation to cytomegalovirus biology.
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Affiliation(s)
- X G Feng
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
| | - G Y Lin
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
| | - Y S Tang
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
| | - P F Wu
- Department of Rheumatology, 900th Hospital, Fujian Medical University, Fuzhou, China
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Zhu ZN, Lu Y, Wu CF, Zou SR, Liu H, Wang CF, Luo BZ, Yu HT, Mi M, Wang GQ, Xiong LB, Wang WJ, Luo CY, Zang JJ, Wang ZY, Jia XD, Feng XG, Guo CY, Wu F. [General plan of Shanghai Diet and Health Survey]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:876-879. [PMID: 30060297 DOI: 10.3760/cma.j.issn.0254-6450.2018.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Shanghai Diet and Health Survey (SDHS) was designed to prospectively access local residents' food consumption, energy and nutrient intake, related chemical contaminant exposure, and the seasonal change trend to explore the relationship of diet with health. Data from SDHS can be used as fundamental information and scientific evidences for the development of local nutrition and food safety policies.
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Affiliation(s)
- Z N Zhu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - Y Lu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - C F Wu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - S R Zou
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Liu
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C F Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - B Z Luo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H T Yu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - M Mi
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - G Q Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - L B Xiong
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - W J Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - C Y Luo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - J J Zang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Z Y Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X D Jia
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X G Feng
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C Y Guo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - F Wu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China; Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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Liao YD, Yang YC, Jiang CH, Feng XG, Chen D. Degradation of mechanical properties of cementitious materials exposed to wet–dry cycles of sulphate solution. ACTA ACUST UNITED AC 2015. [DOI: 10.1179/1432891714z.0000000001070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Y. D. Liao
- Key Laboratory of Coastal Disaster and DefenceMinistry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
| | - Y. C. Yang
- Key Laboratory of Coastal Disaster and DefenceMinistry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
| | - C. H. Jiang
- Key Laboratory of Coastal Disaster and DefenceMinistry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
| | - X. G. Feng
- Key Laboratory of Coastal Disaster and DefenceMinistry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
| | - D. Chen
- Key Laboratory of Coastal Disaster and DefenceMinistry of Education, College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
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Feng XG, Xu XJ, Ye S, Lin YY, Chen P, Zhang XJ, Lin GY, Lin XQ. Recent Chlamydia pneumoniae infection is highly associated with active ankylosing spondylitis in a Chinese cohort. Scand J Rheumatol 2011; 40:289-91. [PMID: 21469941 DOI: 10.3109/03009742.2011.560891] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of the present study was to investigate the presence of anti-Chlamydia pneumoniae (Cp) antibodies in patients with ankylosing spondylitis (AS) to determine whether there is an association with AS disease activity. METHODS Seventy-nine AS outpatients and 73 normal controls were enrolled in this case-control study. Serum anti-Cp immunoglobulins (CpIg) were detected by enzyme-linked immunosorbent assay (ELISA). Antibodies to Epstein-Barr virus (EBV), cytomegalovirus (CMV), and Chlamydia trachomatis (Ct) were also measured. Clinical and experimental data were collected, and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) was determined. Patients with positive Cp IgM or Cp IgA were considered to have had a recent Cp infection. RESULTS Cp IgG was detected in the majority of AS patients and also controls (88.8% vs. 91.8%, respectively). The seroprevalence of Cp IgA and Cp IgM was significantly higher in AS patients than in the controls (51.9% vs. 31.5%, p = 0.010 for Cp IgA; 79.7% vs. 20.5%, p < 0.0001 for Cp IgM). Seropositivity of Cp IgM was associated with elevation of the disease activity index, including erythrocyte sedimentation rate (ESR; p = 0.021), C-reactive protein (CRP; p = 0.007) and the BASDAI (p = 0.009). Persistent positive Cp IgM was associated with active disease, while seroreversion of Cp IgM was associated with a reduction in these disease activity indices. There was no correlation between Cp IgM or Cp IgA and symptomatic upper respiratory infections or other clinical manifestations. CONCLUSIONS Recent Cp infections occur frequently in AS patients and Cp IgM antibody is correlated with active disease. These findings indicate that Cp infections may be a triggering factor for active AS.
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Affiliation(s)
- X G Feng
- Department of Rheumatology, Dongfang Hospital, Fuzhou, P R China.
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Feng XG, Ye S, Lu Y, Xu XJ, Gu YY, Shen N, Ye P, Cheng FP, Wang AM, Chen SL. Antikinectin autoantibody in Behçet's disease and several other autoimmune connective tissue diseases. Clin Exp Rheumatol 2007; 25:S80-S85. [PMID: 17949557] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE Antikinectin autoantibody has recently been identified as a potential biomarker in Behçet's disease (BD). Here, we established an enzyme-linked immunosorbent assay (ELISA) and an indirect immunofluorescent assay (IFA) for detecting this antibody. The clinical significance of antikinectin was investigated. METHODS Partial or full-length cloning for human kinectin in prokaryotic or eukaryotic system was carried out. Three fragments covered kinectin coding sequence were used to establish ELISA. Full-length kinectin overexpressed HepG2 cells were used as a substrate for IFA. Serum samples from BD (n = 46), systemic lupus erythematosus SLE, n = 16), rheumatoid arthritis (RA, n = 160, ankylosing spondylitis (AS, n = 14), primary Sjörgen syndrome (pSS, n = 12), mixed connective tissue disease (MCTD, n = 8), and healthy donors (n = 51) were examined. RESULTS Good measurement consistency between IFA and ELISA (p < 0.001) and previous immunoprecipitation assay (p = 0.011) was found. Antikinectin was found not only in 32.6% (IFA) to 41.3% (ELISA) BD patients but was also identified in pSS, SLE, MCTD, and RA with prevalence ranging from 12.5% to 25%. Nevertheless, the titer of antikinectin (ELISA) is statistically higher in BD compared to other autoimmune connective tissue diseases (p = 0.0286). Antikinectin was found exclusively among complete form of BD (p < 0.001), but there was no correlation with specific clinical manifestations. CONCLUSIONS We confirmed the previous observation that antikinectin is related to BD, especially in the complete form of disease. The specificity and predictive values are moderate.
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Affiliation(s)
- X G Feng
- Department of Rheumatology, Dongfang Hospital, Fuzhou, Fujian Province, China.
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Feng XG, Yi JM, Shi TY. [Isolation identification and laboratory evaluation of molluscicidal ingredient 2-hydroxyl-3-butenyl-thiogluco-side from rape seed]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:318. [PMID: 12572056] [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: 02/28/2023]
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Jin YM, Lin JJ, Feng XG, Zhang L, Wu XF, Zhou YC, Cai YM. [Cloning and expression of gynecophoral canal protein gene of Schistosoma japonicum (Chinese strain)]. Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai) 2002; 34:311-7. [PMID: 12019443] [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: 02/25/2023]
Abstract
A 1949 bp cDNA fragment was amplified by RT-PCR from adult Schistosoma japonicum (Chinese strain) mRNA with 3 pair of primers that were designed according to published SmGCP gene encoding gynecophoral canal protein of Schistosoma mansoni and SjGCP1 gene encoding the conservative region of gynecophoral canal protein of Schistosoma japonicum. Sequence analysis indicated that this fragment, named SjGCP, with 85% identity to SmGCP, contained a complete open reading frame (ORF) of gynecophoral canal protein gene of Schistosoma japonicum (Chinese strain). The amino acid sequence shared 83.7% identity with gynecophoral canal protein of Schistosoma mansoni. This fragment was cloned into the expression vector pET28c(+) and subsequently expressed in Escherichia coli. SDS-PAGE revealed that the molecular weight of this expressed product was 80 kD. Western blotting showed that the recombinant protein reacted well with the rabbit serum immunized with Sj worm antigen, indicating that this expressed product had good antigenicity.
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Affiliation(s)
- Y M Jin
- Shanghai Institute of Animal Parasitology, Chinese Academy of Agricultural Science, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai 200232, China
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Eng K, Feng XG, Popović D, Washburn S. Effects of a parallel magnetic field on the metal-insulator transition in a dilute two-dimensional electron system. Phys Rev Lett 2002; 88:136402. [PMID: 11955112 DOI: 10.1103/physrevlett.88.136402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2001] [Indexed: 05/23/2023]
Abstract
The temperature dependence of conductivity sigma(T) of a two-dimensional electron system in silicon has been studied in parallel magnetic fields B. At B = 0, the system displays a metal-insulator transition at a critical electron density n(c)(0), and dsigma/dT>0 in the metallic phase. At low fields ( B < or approximately equal to 2 T), n(c) increases as n(c)(B)-n(c)(0) proportional, variant Bbeta ( beta approximately 1), and the zero-temperature conductivity scales as sigma(n(s),B,T = 0)/sigma(n(s),0,0) = f(B(beta)/delta(n)), where delta(n) = [n(s)-n(c)(0)]/n(c)(0) and n(s) is electron density, as expected for a quantum phase transition. The metallic phase persists in fields of up to 18 T, consistent with the saturation of n(c) at high fields.
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Affiliation(s)
- Kevin Eng
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA
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Hong DM, Feng XG, Yu XE, Kang LL. [Signal and data acquisition based on waveform graph]. Zhongguo Yi Liao Qi Xie Za Zhi 2001; 25:256-271. [PMID: 12583199] [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: 05/24/2023]
Abstract
It is well known that signal acquisition is the first step in signal processing. A simple and convenient method of acquiring biologic data is described here, which needs no special acquisition equipment, and is practical and makes the data acquisition more credible.
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Affiliation(s)
- D M Hong
- Department of BME, First Military Medical University
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Abstract
Experiments on a sufficiently disordered two-dimensional (2D) electron system in silicon reveal a new and unexpected kind of metallic behavior, where the conductivity decreases as sigma(n(s),T) = sigma(n(s),T = 0)+A(n(s))T(2) (where n(s) is carrier density) to a nonzero value as temperature T-->0. In 2D, the existence of a metal with dsigma/dT>0 is very surprising. In addition, a novel type of a metal-insulator transition obtains, which is unlike any known quantum phase transition in 2D.
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Affiliation(s)
- X G Feng
- National High Magnetic Field Laboratory, Florida State University, Tallahassee 32310, USA
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