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152
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Wang JJ, Mao JH. [Pathogenesis and clinical significance in children with hyperuricemia associated renal injury]. Zhonghua Er Ke Za Zhi 2016; 54:711-714. [PMID: 27596090 DOI: 10.3760/cma.j.issn.0578-1310.2016.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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153
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Ji SD, Wang ZY, Fan HJ, Zhang RS, Yu ZY, Wang JJ, Liu ZH. Heterologous expression of the Hsp24 from Trichoderma asperellum improves antifungal ability of Populus transformant Pdpap-Hsp24 s to Cytospora chrysosperma and Alternaria alternate. J Plant Res 2016; 129:921-933. [PMID: 27193371 DOI: 10.1007/s10265-016-0829-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 11/27/2015] [Indexed: 05/02/2023]
Abstract
The tolerance of plants to biotic and abiotic stresses could be improved by transforming with fungal resistance-related genes. In this study, the cDNA sequence (GenBank Acc. No. KP337939) of the resistance-related gene Hsp24 encoding the 24 kD heat shock protein was obtained from the biocontrol fungus Trichoderma asperellum ACCC30536. The promoter region of Hsp24 contained many cis-regulators related to stresses response, such as "GCN4" and "GCR1" etc. Hsp24 transcription in T. asperellum was up-regulated under six different environmental stresses, compared with the control. Furthermore, following heterologous transformation into Populus davidiana × P. alba var. Pyramidalis (Pdpap), Hsp24 was successfully transcribed in transformant Pdpap-Hsp24s. Pathogen-related genes (PRs) in four Pdpap-Hsp24s were up-regulated compared with those in the control Pdpap (Pdpap-Con). After co-culture of Pdpap-Hsp24s with the weak parasite Cytospora chrysosperma, the transcription of genes related to hormone signal pathway (JA and SA) were up-regulated in Pdpap-Hsp24s, and ethidium bromide (EtBr) and Nitro-blue tetrazolium (NBT) staining assays indicated that the cell membrane permeability and the active oxygen content of Pdpap-Hsp24s leaves were lower than that of the control Pdpap-Con. And when the Pdpap-Hsp24s were under the Alternaria alternate stress, the activities of superoxide dismutase (SOD) and peroxidase (POD) got higher in Pdpap-Hsp24s than that in Pdpap-Con, and the disease spots in Pdpap-Con leaves were obviously larger than those in Pdpap-Hsp24s leaves. In summary, Hsp24 of T. asperellum ACCC30536 is an important defense response gene, and its heterologous expression improved the resistance of transformant Pdpap-Hsp24s to C. chrysosperma and A. alternate.
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Affiliation(s)
- S D Ji
- School of Forestry, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China
| | - Z Y Wang
- School of Forestry, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China
| | - H J Fan
- School of Forestry, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China
| | - R S Zhang
- The College of Landscape, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China
| | - Z Y Yu
- School of Forestry, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China
| | - J J Wang
- School of Forestry, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China
| | - Z H Liu
- School of Forestry, Northeast Forestry University, 26 Hexing Road, 150040, Harbin, China.
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154
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Liu F, Zhu N, Qiu L, Wang JJ, Wang WH. [Application of R-based multiple seasonal ARIMA model, in predicting the incidence of hand, foot and mouth disease in Shaanxi province]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:1117-20. [PMID: 27539344 DOI: 10.3760/cma.j.issn.0254-6450.2016.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To apply the ' auto-regressive integrated moving average product seasonal model' in predicting the number of hand, foot and mouth disease in Shaanxi province. METHODS In Shaanxi province, the trend of hand, foot and mouth disease was analyzed and tested, under the use of R software, between January 2009 and June 2015. Multiple seasonal ARIMA model was then fitted under time series to predict the number of hand, foot and mouth disease in 2016 and 2017. RESULTS Seasonal effect was seen in hand, foot and mouth disease in Shaanxi province. A multiple seasonal ARIMA (2,1,0)×(1,1,0)12 was established, with the equation as (1 -B)(1 -B12)Ln (Xt) =((1-1.000B)/(1-0.532B-0.363B(2))*(1-0.644B12-0.454B12(2)))*Epsilont. The mean of absolute error and the relative error were 531.535 and 0.114, respectively when compared to the simulated number of patients from Jun to Dec in 2015. RESULTS under the prediction of multiple seasonal ARIMA model showed that the numbers of patients in both 2016 and 2017 were similar to that of 2015 in Shaanxi province. CONCLUSION Multiple seasonal ARIMA (2,1,0)×(1,1,0)12 model could be used to successfully predict the incidence of hand, foot and mouth disease in Shaanxi province.
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Affiliation(s)
- F Liu
- Shaanxi Provincal Center for Disease Control and Prevention, Xi'an 710054, China
| | - N Zhu
- Institute for Health Information of Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China
| | - L Qiu
- Institute for Health Information of Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China
| | - J J Wang
- Shaanxi Provincal Center for Disease Control and Prevention, Xi'an 710054, China
| | - W H Wang
- Institute for Communicable Disease Control and Prevention of Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China
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155
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Li L, Wang JJ, Cheng JM. [Laparoscopic salpingotomy for tubal pregnancy: comparison of linear salpingotomy with and without suturing]. Zhonghua Yi Xue Za Zhi 2016; 96:2424-6. [PMID: 27545036 DOI: 10.3760/cma.j.issn.0376-2491.2016.30.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To clarify the advantages and the influence to reproductive outcome after laparoscopic salpingotomy with and without suturing for tubal pregnancy. METHODS We retrospectively analyzed the clinical data of patients underwent laparoscopic salpingotomy from March 2012 to October 2014 who were willing to reserve their reproductive function and were able to be followed up. Based on the operation procedure, the patients were assigned to undergo laparoscopic salpingotomy with suturing (group A; n=49) or without suturing (group B; n=69). An amount of 50 mg methopterin was injected at mesosalpinx during operation in all cases. Tubal patency of the trouble side was evaluated by liquid instillation. The operation time, amount of bleeding, the trouble side tubal patency rate 3 months after the surgery, pregnancy outcome 12 months after the surgery was compared between two groups. RESULTS Three months after the surgery the tubal patency rate of trouble side was 85.71% (42/49) in group A and 62.32% (43/69) in group B. There was significant differences (P<0.05) between two groups. Within twelve months of the surgery, the intrauterine gestation rate was 69.39% (34/49) in group A and 42.03% (29/69) in group B. Ectopic re-pregnancy rate of the trouble side was 10.20% (5/49) in group A and 27.54% (19/69) in group B. Secondary infertility rate was 14.29% (7/49) in group A and 27.54% (19/69) in group B. There was significant differences (P<0.05) between two groups. The trouble side tubal patency rate and intrauterine gestation rate of group A was significantly higher than that of group B, while the ectopic re-pregnancy rate of the trouble side and secondary infertility rate of group A was significantly lower than that of group B. CONCLUSIONS Suturing after laparoscopic salpingotomy can decrease the damage to fallopian tube and recover its normal anatomic structure. So the procedure involving suturing can effectively reserve reproductive function for the patients.
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Affiliation(s)
- L Li
- Center of Minimally Invasive Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
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Zhu YH, Lin G, Dai ZL, Zhou TJ, Yuan TL, Feng CP, Chen F, Wu GY, Wang JJ. Developmental changes in polyamines and autophagic marker levels in normal and growth-restricted fetal pigs. J Anim Sci 2016; 93:3503-11. [PMID: 26440019 DOI: 10.2527/jas.2014-8743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Polyamines are essential for embryonic and fetal survival, growth, and development. Additionally, polyamines may induce autophagy in mammalian cells. However, little is known about the availability of polyamines or autophagy in the porcine conceptus with intrauterine growth restriction (IUGR). The present study was performed to evaluate the developmental changes of polyamine concentrations in IUGR and normal porcine fetuses as well as autophagic marker levels in the fetal intestinal mucosa during the second half of gestation when most fetal growth occurs. Allantoic fluid (ALF), amniotic fluid (AMF), umbilical vein, and the small-intestinal mucosa were obtained from both IUGR and normal fetal pigs at d 60, 90, and 110 of gestation. Concentrations of polyamines in fetal fluids as well as protein abundances of microtubule-associated protein light chain 3B (LC3B), an autophagic marker, in the fetal small-intestinal mucosa were determined. Concentrations of polyamines varied greatly in different fetal compartments and changed substantially with advancing gestation. Concentrations of polyamines in IUGR fetal fluids and the small-intestinal mucosa were markedly different from those in their normal counterparts at d 60 and 90 of gestation, whereas most of the differences were not detected by late (d 110) gestation. Specifically, polyamine levels were lower in the umbilical vein plasma but higher in ALF and AMF from IUGR fetuses. Furthermore, enhanced levels of an autophagic marker were observed in the small-intestinal mucosa of IUGR fetuses throughout mid and late gestation in association with abnormal spermidine levels in fetal plasma. These findings support the notion that enhanced autophagy may be an important survival mechanism in IUGR fetuses. Collectively, our findings provide a new framework for future studies to define the roles for polyamines in the prevention and treatment of IUGR in both human medicine and animal production.
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Abstract
A recent population-based prospective study reported that in women, migraine with aura (MA), but not migraine without aura (MoA), was associated with increased risk of coronary heart disease events (CHD). We sought to confirm this association in an Australian population-based cohort of older men and women ( n = 2331, aged 49-97 years). We defined MA and MoA from face-to-face interview using International Headache Society criteria. Over a mean 6-year follow-up, 30 women (2.8%) and 30 men (4.4%) without any prior CHD history died from CHD-related causes. In women, a history of MA was associated with a non-significant twofold higher risk of CHD death (age-adjusted relative risk 2.2, 95% confidence interval 0.8, 5.8, P = 0.11), which remained similar after adjustment for cardiovascular risk factors. There were no CHD deaths in men with a history of migraine. Our findings support reports that in women, MA, but not MoA, may be associated with increased risk of CHD.
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Affiliation(s)
- G Liew
- Centre for Vision Research, Department of Ophthalmology (Westmead Hospital), the Westmead Millennium Institute, University of Sydney, Sydney, Australia
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158
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Xu ED, Xiao YF, Wang JJ, Dong L. Association study between matrix metalloproteinase-9 gene (MMP9) polymorphisms and the risk of Henoch-Schönlein purpura in children. Genet Mol Res 2016; 15:gmr8095. [PMID: 27323137 DOI: 10.4238/gmr.15028095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Henoch-Schönlein purpura nephritis (HSPN), the most serious long-term complication of Henoch-Schönlein purpura, is one of the most common renal diseases in children. Matrix metalloproteinase-9 (MMP-9) is implicated in the pathogenesis of renal diseases. Genomic DNA was isolated from the venous blood leukocytes of 220 unrelated patients with HSPN and 205 unrelated healthy individuals. To identify markers contributing to genetic susceptibility to HSPN, this study examined the potential association between HSPN and four single nucleotide polymorphisms of the MMP-9 gene (MMP9) (rs17576, rs3918254, rs3787268, and rs2236416) by using the MassARRAY system. The allelic or genotypic frequencies of the rs17576 (exon 6) and rs3918254 (intron 6) polymorphisms in HSPN were significantly different from those in the healthy controls. The HSPN subjects had a significantly higher frequency of the G allele of rs17576 (χ(2) = 8.416, P = 0.004, OR = 1.556, 95%CI = 1.153-2.100) and a significantly lower frequency of the A allele of rs2236416 (χ(2) = 10.363, P = 0.001, OR = 0.545, 95%CI = 0.375-0.791). Linkage disequilibrium was observed in two blocks (D' > 0.9; r(2) > 0.8 in control). In block 1, significantly more G-C haplotypes (P = 0.011) and significantly fewer A-C haplotypes (P = 0.008) were found in the HSPN subjects. In block 2, significantly more G-G haplotypes (P = 0.016) and significantly fewer A-G haplotypes (P = 0.006) were found in the HSPN subjects. These observations suggest that the rs17576 and rs3918254 polymorphisms of MMP9 are associated with HSPN.
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Affiliation(s)
- E D Xu
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y F Xiao
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J J Wang
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - L Dong
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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159
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Nan Y, Xi Z, Yang Y, Wang LL, Tu MW, Wang JJ, Jiang Y. [The 2015 China Adult Tobacco Survey: exposure to second-hand smoke among adults aged 15 and above and their support to policy on banning smoking in public places]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:810-5. [PMID: 27346107 DOI: 10.3760/cma.j.issn.0254-6450.2016.06.014] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To understand the situation on exposure to second-hand smoke among Chinese adults aged 15 and above and their support to policy on banning smoking in public places in 2015. METHODS A cross-sectional survey was conducted based on the protocol on Global Adult Tobacco Survey. Stratified multi-stage cluster sampling was used to select 16 800 households in China. Data were collected through household survey, using the electronic devices. One eligible respondent was selected by random sampling in each household. Standardized questionnaire was used from Global Tobacco Surveillance System. Data were weighted and analyzed by SAS 9.3 and SUDAAN 10.0.1 complex survey data analysis program. RESULTS 93.1% (60 128×10(3)/64 575×10(3)), 76.3% (455 473×10(3)/596 782×10(3)), 57.1% (621 793×10(3)/1 089 582×10(3)), 54.3% (218 792×10(3)/402 732×10(3)), 38.1% (61 208×10(3)/160 574×10(3)), 26.9% (119 783×10(3)/444 679×10(3)), 23.8%(17 598×10(3)/73 993×10(3)), 17.2% (41 099×10(3)/239 022×10(3)) and 16.4% (102 153×10(3)/623 015×10(3)) of the respondents reported that smoking did exsit in the following places as: inside of bars or night clubs, in the restaurants, households homes, working places, government buildings, health care facilities, universities, primary and high schools (both indoor and outdoor areas), and on public transportation, respectively. Compared with those data in 2010, the proportions of exposure to indoor areas of restaurants, government buildings, health care facilities, primary and high schools (both indoor and outdoor areas), public transportation, and homes all significantly decreased after standardization of data. RESULTS also showed that most respondents were supportive to the policy on banning smoking in public and working places. However, the proportions of exposure to indoor areas of restaurants were still high but almost 70% of the respondents thought smoking should not be allowed in indoor areas of restaurants. CONCLUSION From 2010 to 2015, proportions of exposure to indoor areas of public places, working places, public transportation and homes were obviously declining in China. The Chinese public seemed supportive to the policy on banning smoking in public places.
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Affiliation(s)
- Y Nan
- Tobacco Control Office, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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160
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Zhao YL, Wang HM, Shao BX, Chen W, Guo ZJ, Gong HY, Sang XH, Wang JJ, Ye WW. SSR-based association mapping of salt tolerance in cotton (Gossypium hirsutum L.). Genet Mol Res 2016; 15:gmr7370. [PMID: 27323090 DOI: 10.4238/gmr.15027370] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The identification of simple sequence repeat (SSR) markers associated with salt tolerance in cotton contributes to molecular assisted selection (MAS), which can improve the efficiency of traditional breeding. In this study, 134 samples of upland cotton cultivars were selected. The seedling emergence rates were tested under 0.3% NaCl stress. A total of 74 SSR markers were used to scan the genomes of these samples. To identify SSR markers associated with salt tolerance, an association analysis was performed between salt tolerance and SSR markers using TASSEL 2.1, based on the analysis of genetic structure using Structure 2.3.4. The results showed that the seedling emergence rates of 134 cultivars were significantly different, and 27 salt-sensitive and 10 salt-tolerant cultivars were identified. A total of 148 loci were found in 74 SSR markers involving 246 allelic variations, which ranged from 2 to 7 with an average of 3.32 per SSR marker. The gene diversity ranged from 0.0295 to 0.4959, with the average being 0.2897. The polymorphic information content ranged from0.0290 to 0.3729, with the average being 0.2381. This natural population was classified into two subgroups by Structure 2.3.4, containing 89 and 45 samples, respectively. Finally, eight SSR sites associated with salt tolerance ware found through an association analysis, with the rate of explanation ranging from 2.91 to 7.82% and an average of 4.32%. These results provide reference data for the use MAS for salt tolerance in cotton.
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Affiliation(s)
- Y L Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - H M Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - B X Shao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - W Chen
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - Z J Guo
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - H Y Gong
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - X H Sang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - J J Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
| | - W W Ye
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, Henan, China
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162
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Yeh DYW, Tung SP, Fu YH, Yang YC, Wang JJ. Intravenous superoxide dismutase administration reduces contralateral lung injury induced by unilateral lung ischemia and reperfusion in rats through suppression of activity and protein expression of matrix metalloproteases. Transplant Proc 2016; 47:1083-6. [PMID: 26036525 DOI: 10.1016/j.transproceed.2014.10.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 10/28/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND Ischemia and reperfusion (I/R) of the lungs induces massive superoxide radical production. On the other hand, matrix metalloproteases (MMPs) were shown to play an essential role in I/R-associated lung injury. We aimed to investigate the lung-protective efficacy of intravenous superoxide dismutase (SOD) administration and its relation with MMPs activity in the lungs subsequent to I/R injury. METHODS Twenty-two male Sprague-Dawley rats were divided into a sham group (n = 6), a unilateral lung I/R group (n = 8), and a SOD-treated lung I/R group (n = 8). Unilateral lung ischemia was conducted by occluding the left lung hilum for 90 min, followed by 5 hours of reperfusion through release of the occlusion. In the SOD-treated group, SOD was administered intravenously during the first hour of reperfusion. We assessed the protein contents in the broncho-alveolar lavage fluid (PCBAL) as a marker for protein permeability and lung wet-to-dry weight ratio (W/D) for lung water content. We also measured levels of lipid peroxidation and MMP activity in the lungs, by tissue malonedealdehyde (MDA) level with the use of enzyme-linked immunoassay, and the gelatin zymography technique, respectively. RESULTS Forty-eight hours of left-lung I/R significantly increased PCBAL (P < .001), W/D (P < .05), tissue MDA level (P < .05), and MMP-9 and MMP-2 activity. SOD treatment attenuated I/R-induced contralateral lung injury, reducing pulmonary permeability, lipid peroxidation, and MMP activities. CONCLUSIONS I/R injury of the left lung induced increases in W/D, PCBAL, MDA level, and MMP-9 activity in the right lung. SOD treatment during the first hour of a 5-hour reperfusion protected the lung through suppressing MMP-9 activity and reducing tissue lipid peroxidation.
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Affiliation(s)
- D Y-W Yeh
- Division of Chest Medicine, Internal Medicine, Shin Kong Wu-Ho-Su Memorial Hospital, Taipei, Taiwan; School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - S-P Tung
- Division of Emergency Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan; Granulate Institute of Basic Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Y H Fu
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Y C Yang
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - J J Wang
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.
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163
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Wei XC, Yang DD, Han XR, Zhao YA, Li YC, Zhang LJ, Wang JJ. Effects of CD3McAb and rhIL-2 activated bone marrow on the killing and purging of leukemia cells. Genet Mol Res 2015; 14:18287-92. [PMID: 26782476 DOI: 10.4238/2015.december.23.16] [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] [Indexed: 11/03/2022]
Abstract
We investigated the roles of CD3McAb and rhIL-2 activated bone marrow in the killing and purging of leukemia cells. Cytotoxicity of activated bone marrow was detected with MTT assay. CFU-GM level in activated bone marrow and the destruction of leukemia cells were measured using the semi-solid cell culture. Immune activation markers in activated bone marrow were detected by indirect immunofluorescence assay. Bone marrow activated by CD3McAb and rhIL-2 displayed significantly upregulated the killing and purging abilities on the leukemia cell line K562 and HL-60. Such effects were superior to that of bone marrow activated by rhIL-2 or CD3McAb alone (P < 0.05, P < 0.01). Activation by rhIL-2 and (or) CD3McAb exerted no obvious influence on CFU-GM level in bone marrow. Compared with bone marrow activated by rhIL-2 or CD3McAb alone, the synergistic effect of both CD3McAb+ and hIL-2 caused significant increase of CD3(+), CD8(+), CD19(+), CD25(+), CD38(+), and CD56(+) levels. Our study indicates that CD3McAb enhanced the killing and purging effects of rhIL-2 activated bone marrow on leukemia cells.
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Affiliation(s)
- X C Wei
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
| | - D D Yang
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
| | - X R Han
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Y A Zhao
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Y C Li
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
| | - L J Zhang
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
| | - J J Wang
- Institute of hematological research, Shaanxi Provincial People's Hospital, Xi'an, China
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164
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Chu XQ, Wang JJ, Dou LD, Zhao G. Cartilage oligomeric matrix protein and matrix metalloproteinase-3 expression in the serum and joint fluid of a reversible osteoarthritis rabbit model. Genet Mol Res 2015; 14:14207-15. [PMID: 26600478 DOI: 10.4238/2015.november.13.4] [Citation(s) in RCA: 11] [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: 11/03/2022]
Abstract
The main pathological characteristic of osteoarthritis (OA) is cartilage damage. We explored cartilage oligomeric matrix protein (COMP) and matrix metalloproteinase-3 (MMP-3) changes during articular cartilage injury and repair. Rabbits were randomly divided into the following: a blank control group; groups M1, M2, and M3, in which breaking was performed for 2, 4, and 6 weeks, respectively; and groups L1, L2, and L3, in which breaking was discontinued for 2, 4, and 6 weeks, respectively, following a 4-week recovery period. There are 7 rabbits in each group. The degree of cartilage damage in each group was scored (OA score). An enzyme-linked immunosorbent assay was used to detect COMP and MMP-3 levels in serum and joint fluid. The OA scores were 3.89 ± 2.31, 7.21 ± 2.31, and 10.88 ± 2.08 points in groups M1, M2, and M3, respectively (P < 0.05). COMP and MMP-3 levels were significantly higher in groups M1, M2, and M3 than in C. The OA score improved significantly following the 4-week recovery period (P < 0.05). COMP and MMP-3 levels began to decrease as the time following discontinuation of breaking increased, but were higher than in the control (P < 0.05). MMP- 3 and COMP levels were correlated with OA score (r > 0.7, P < 0.05). COMP and MMP-3 levels were correlated between joint fluid and serum (r = 0.899, r = 0.874, P < 0.05, respectively). Long-term joint breaking can cause articular cartilage damage. Doing some activites after the process can promote self-repair of articular cartilage. COMP and MMP-3 levels were associated with articular cartilage destruction and repair.
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Affiliation(s)
- X Q Chu
- Department of Orthopaedics, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - J J Wang
- Department of Neurosurgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - L D Dou
- Department of Orthopaedics, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - G Zhao
- Department of Orthopaedics, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
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165
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Wang JJ, Sun J, Yang M, Li LC. Tuning Magnetic Relaxation in a Tb-Nitronyl Nitroxide Complex by Using Cocrystalline Paramagnetic Complex. Inorg Chem 2015; 54:11307-13. [DOI: 10.1021/acs.inorgchem.5b01915] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan-Juan Wang
- Department
of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry
and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry, Nankai University, Tianjin 300071, China
| | - Juan Sun
- Department
of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry
and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry, Nankai University, Tianjin 300071, China
| | - Meng Yang
- Department
of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry
and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry, Nankai University, Tianjin 300071, China
| | - Li-Cun Li
- Department
of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry
and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry, Nankai University, Tianjin 300071, China
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166
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Chen YF, Wang YY, Wang JJ, Gao XN, Wang XL, Zhao SW, Wang T, Dou HY. [Research Progress on Muscle-derived Stem Cells Capable of Hematopoiesis]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2015; 23:1523-6. [PMID: 26524070 DOI: 10.7534/j.issn.1009-2137.2015.05.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Muscle-derived stem cells (MDSC) are defined as myogenic stem cells endowed with their ability to self-renew and differentiate into multiple cell types of their derivative tissue, and are proved to be over 10 times more efficient in hematopoiesis than hematopoietic stem cells (HSC). Although the mechanism which MDSC differentiate into blood cells is still unclear, MDSC were considered to replace HSC to treat the patients suffering from bone marrow diseases such as aplastic anemia and tumor. MDSC are different from HSC in a variety aspects like biological characteristics, protein expression and cell proliferation. On the other hand, MDSC contain multiple distinct stem cell populations. Among these, there is only a small part with the ability to repopulate hematopoietic cells, and it is still uncertain whether their origin is same as HSC. This review summarizes the difference between MDSC and HSC, the ability of MDSC to repopulate hematopoietic cells, and the prospect of MDSCs' transplantation.
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Affiliation(s)
- Yu-Fang Chen
- Department of Nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yuan-Yuan Wang
- Department of Nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Juan-Juan Wang
- College of Tradional Chinese Medicine Integrated with Western Medicine, Tianjin Uneversity of Traditional Chinese Medicine, Tianjin 300193, China
| | - Xiao-Ning Gao
- College of Tradional Chinese Medicine Integrated with Western Medicine, Tianjin Uneversity of Traditional Chinese Medicine, Tianjin 300193, China
| | - Xiao-Ling Wang
- College of Tradional Chinese Medicine Integrated with Western Medicine, Tianjin Uneversity of Traditional Chinese Medicine, Tianjin 300193, China
| | - Shu-Wu Zhao
- College of Tradional Chinese Medicine Integrated with Western Medicine, Tianjin Uneversity of Traditional Chinese Medicine, Tianjin 300193, China
| | - Tao Wang
- College of Tradional Chinese Medicine Integrated with Western Medicine, Tianjin Uneversity of Traditional Chinese Medicine, Tianjin 300193, China. E-mail:
| | - Hao-Ying Dou
- Department of Nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China. E-mail:
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167
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Wu JW, Wang JJ, Chen JB, Huang YL, Wang H, Liu GH, Li LF, Kang M, Wang XG, Cai HH. Resveratrol could reverse the expression of SIRT1 and MMP-1 in vitro. Genet Mol Res 2015; 14:12386-93. [PMID: 26505388 DOI: 10.4238/2015.october.16.5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Intervertebral disc degeneration is the main cause of lumbago disease, in which the extracellular matrix structure and moisture in the nucleus pulposus is lost continuously. In this study, we aimed to detect differential expression of silence mating type information regulation 2 homolog 1 (SIRT1) and matrix metalloproteinase-1 (MMP-1) in human intervertebral disc nucleus pulposus cells and to explore the effects of SIRT1 and MMP-1 on the development of the intervertebral disc degeneration. Intervertebral disc nucleus pulposus specimens from 41 patients who underwent lumbar protrusion resection at HuiZhou Municipal Central Hospital, during the period from October 2011 to December 2013, were studied in comparison with 23 control cases from patients who underwent fractured lumbar resection. In degenerated human intervertebral disc nucleus pulposus cells, the expression of SIRT1 is decreased and MMP-1 is increased compared with that of the control cells. Resveratrol could reverse these effects, thereby increasing the expression of SIRT1 (0.87 ± 0.07 vs 0.54 ± 0.04), Coll2α1 (0.90 ± 0.08 vs 0.38 ± 0.01), and aggrecan (0.69 ± 0.07 vs 0.42 ± 0.05) and decreasing the expression of MMP-1 (0.61 ± 0.03 vs 0.93 ± 0.08). These results suggest that resveratrol could possibly reverse the process of intervertebral disc degeneration and thus could be applied as a potential drug for the disease.
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Affiliation(s)
- J W Wu
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - J J Wang
- Department of Ophthalmology, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - J B Chen
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - Y L Huang
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - H Wang
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - G H Liu
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - L F Li
- Department of Emergency, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - M Kang
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - X G Wang
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
| | - H H Cai
- Department of Spine Surgery, HuiZhou Municipal Central Hospital, HuiZhou, Guangdong, China
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168
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Liu WQ, Wang WY, Wang JJ, Wang FQ, Lu C, Jin F, Zhang A, Zhang QM, Laan GVD, Xu YB, Li QX, Zhang R. Atomic-Scale Interfacial Magnetism in Fe/Graphene Heterojunction. Sci Rep 2015; 5:11911. [PMID: 26145155 PMCID: PMC4491707 DOI: 10.1038/srep11911] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 03/04/2015] [Accepted: 05/15/2015] [Indexed: 11/16/2022] Open
Abstract
Successful spin injection into graphene makes it a competitive contender in the race to become a key material for quantum computation, or the spin-operation-based data processing and sensing. Engineering ferromagnetic metal (FM)/graphene heterojunctions is one of the most promising avenues to realise it, however, their interface magnetism remains an open question up to this day. In any proposed FM/graphene spintronic devices, the best opportunity for spin transport could only be achieved where no magnetic dead layer exists at the FM/graphene interface. Here we present a comprehensive study of the epitaxial Fe/graphene interface by means of X-ray magnetic circular dichroism (XMCD) and density functional theory (DFT) calculations. The experiment has been performed using a specially designed FM1/FM2/graphene structure that to a large extent restores the realistic case of the proposed graphene-based transistors. We have quantitatively observed a reduced but still sizable magnetic moments of the epitaxial Fe ML on graphene, which is well resembled by simulations and can be attributed to the strong hybridization between the Fe 3dz2 and the C 2pz orbitals and the sp-orbital-like behavior of the Fe 3d electrons due to the presence of graphene.
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Affiliation(s)
- W Q Liu
- York-Nanjing Joint Centre (YNJC) for Spintronics and Nanoengineering, School of Electronics Science and Engineering, Nanjing University, Nanjing 210093, China.,Spintronics and Nanodevice Laboratory, Department of Electronics, University of York, York YO10 5DD, UK
| | - W Y Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.,Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J J Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.,Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - F Q Wang
- York-Nanjing Joint Centre (YNJC) for Spintronics and Nanoengineering, School of Electronics Science and Engineering, Nanjing University, Nanjing 210093, China
| | - C Lu
- Spintronics and Nanodevice Laboratory, Department of Electronics, University of York, York YO10 5DD, UK
| | - F Jin
- Department of Physics, Renmin University of China, Beijing 100872, China
| | - A Zhang
- Department of Physics, Renmin University of China, Beijing 100872, China
| | - Q M Zhang
- Department of Physics, Renmin University of China, Beijing 100872, China
| | | | - Y B Xu
- York-Nanjing Joint Centre (YNJC) for Spintronics and Nanoengineering, School of Electronics Science and Engineering, Nanjing University, Nanjing 210093, China.,Spintronics and Nanodevice Laboratory, Department of Electronics, University of York, York YO10 5DD, UK
| | - Q X Li
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.,Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - R Zhang
- York-Nanjing Joint Centre (YNJC) for Spintronics and Nanoengineering, School of Electronics Science and Engineering, Nanjing University, Nanjing 210093, China
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169
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Wang HHX, Wong SYS, Wong MCS, Wang JJ, Wei XL, Li DKT, Tang JL, Griffiths SM. Attributes of primary care in community health centres in China and implications for equitable care: a cross-sectional measurement of patients' experiences. QJM 2015; 108:549-60. [PMID: 25524909 DOI: 10.1093/qjmed/hcu248] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND China has been undergoing a health-care reform, and community health centres (CHCs) are being established as primary care provider across urban areas. AIM To evaluate primary care attributes in CHCs by measuring patients' experiences. DESIGN Cross-sectional surveys of 3360 adult service users with multistage cluster sampling. METHODS We developed a short assessment tool consisting of 33 items derived from the short version of the original Primary Care Assessment Tool-Adult Edition (PCAT-AE). The reliability and validity of the instrument were evaluated. Score distributions were assessed using descriptive statistics with 95% confidence interval (CI). The overall PCAT scores were categorized into three quantile groups (lower score, medium score and optimal score). Ordinal logistic regression analysis was performed to explore patient characteristics associated with optimal score after controlling for demographic, socio-economic, health conditions and health-care utilization characteristics. RESULTS One-third (33.4%, 95% CI: 31.0-35.9%) of subjects had optimal overall PCAT scores, while the majority (83.4%) reported medium-to-lower score in the community orientation scale. Patients' characteristics with respect to health-care utilization had major effects on PCAT scores. Subjects with the presence of social medical insurance had higher odds of having greater experience in most primary care attributes and tended to report optimal primary care experience (aOR 2.30, 95% CI: 1.92-2.75) compared with those without social medical insurance. CONCLUSIONS Equitable primary care is yet to be strengthened with regard to the community orientation attribute, and particularly among patients without social medical insurance, as they tend to have inferior experiences in the primary care sector.
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Affiliation(s)
- H H X Wang
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - S Y S Wong
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - M C S Wong
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - J J Wang
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - X L Wei
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - D K T Li
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - J L Tang
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
| | - S M Griffiths
- From the JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, P.R. China, General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 9LX, UK, School of Public Health, Guangzhou Medical University, Guangzhou 510182, P.R. China and Bauhinia Foundation Research Centre, Hong Kong
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170
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Hu SG, Liu Y, Liu Z, Chen TP, Wang JJ, Yu Q, Deng LJ, Yin Y, Hosaka S. Associative memory realized by a reconfigurable memristive Hopfield neural network. Nat Commun 2015; 6:7522. [PMID: 26108993 DOI: 10.1038/ncomms8522] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 05/15/2015] [Indexed: 11/09/2022] Open
Abstract
Although synaptic behaviours of memristors have been widely demonstrated, implementation of an even simple artificial neural network is still a great challenge. In this work, we demonstrate the associative memory on the basis of a memristive Hopfield network. Different patterns can be stored into the memristive Hopfield network by tuning the resistance of the memristors, and the pre-stored patterns can be successfully retrieved directly or through some associative intermediate states, being analogous to the associative memory behaviour. Both single-associative memory and multi-associative memories can be realized with the memristive Hopfield network.
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Affiliation(s)
- S G Hu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Y Liu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Z Liu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - T P Chen
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - J J Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Q Yu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - L J Deng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Y Yin
- Graduate School of Engineering, Gunma University, 1-5-1Tenjin, Kiryu, Gunma 376-8515, Japan
| | - Sumio Hosaka
- Graduate School of Engineering, Gunma University, 1-5-1Tenjin, Kiryu, Gunma 376-8515, Japan
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171
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Wang JJ, Zhu M, Le YZ. Functions of Müller cell-derived vascular endothelial growth factor in diabetic retinopathy. World J Diabetes 2015; 6:726-733. [PMID: 26069721 PMCID: PMC4458501 DOI: 10.4239/wjd.v6.i5.726] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 02/21/2015] [Accepted: 03/18/2015] [Indexed: 02/05/2023] Open
Abstract
Müller cells are macroglia and play many essential roles as supporting cells in the retina. To respond to pathological changes in diabetic retinopathy (DR), a major complication in the eye of diabetic patients, retinal Müller glia produce a high level of vascular endothelial growth factor (VEGF or VEGF-A). As VEGF is expressed by multiple retinal cell-types and Müller glia comprise only a small portion of cells in the retina, it has been a great challenge to reveal the function of VEGF or other globally expressed proteins produced by Müller cells. With the development of conditional gene targeting tools, it is now possible to dissect the function of Müller cell-derived VEGF in vivo. By using conditional gene targeting approach, we demonstrate that Müller glia are a major source of retinal VEGF in diabetic mice and Müller cell-derived VEGF plays a significant role in the alteration of protein expression and peroxynitration, which leads to retinal inflammation, neovascularization, vascular leakage, and vascular lesion, key pathological changes in DR. Therefore, Müller glia are a potential cellular target for the treatment of DR, a leading cause of blindness.
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172
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Wang JJ, Hu JM, Peng RC, Gao Y, Shen Y, Chen LQ, Nan CW. Magnetization Reversal by Out-of-plane Voltage in BiFeO3-based Multiferroic Heterostructures. Sci Rep 2015; 5:10459. [PMID: 25995062 PMCID: PMC4773698 DOI: 10.1038/srep10459] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 12/23/2014] [Accepted: 04/15/2015] [Indexed: 11/09/2022] Open
Abstract
Voltage controlled 180° magnetization reversal has been achieved in BiFeO3-based multiferroic heterostructures, which is promising for the future development of low-power spintronic devices. However, all existing reports involve the use of an in-plane voltage that is unfavorable for practical device applications. Here, we investigate, using phase-field simulations, the out-of-plane (i.e., perpendicular to heterostructures) voltage controlled magnetism in heterostructures consisting of CoFe nanodots and (110) BiFeO3 thin film or island. It is predicted that the in-plane component of the canted magnetic moment at the CoFe/BiFeO3 interface can be reversed repeatedly by applying a perpendicular voltage across the bottom (110) BiFeO3 thin film, which further leads to an in-plane magnetization reversal in the overlaying CoFe nanodot. The non-volatility of such perpendicular voltage controlled magnetization reversal can be achieved by etching the continuous BiFeO3 film into isolated nanoislands with the same in-plane sizes as the CoFe nanodot. The findings would provide general guidelines for future experimental and engineering efforts on developing the electric-field controlled spintronic devices with BiFeO3-based multiferroic heterostructures.
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Affiliation(s)
- J J Wang
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - J M Hu
- 1] State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China [2] Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - Ren-Ci Peng
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Y Gao
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Y Shen
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - L Q Chen
- 1] State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China [2] Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - C W Nan
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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173
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Sasongko MB, Wong TY, Jenkins AJ, Nguyen TT, Shaw JE, Wang JJ. Circulating markers of inflammation and endothelial function, and their relationship to diabetic retinopathy. Diabet Med 2015; 32:686-91. [PMID: 25407692 DOI: 10.1111/dme.12640] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/17/2014] [Indexed: 12/12/2022]
Abstract
AIM To examine the relationships of serum markers of inflammation and endothelial function to diabetic retinopathy. METHODS We recruited 224 patients with diabetes (85 with Type 1 and 139 with Type 2 diabetes) aged 18-70 years. Serum markers of inflammation (high-sensitivity C-reactive protein) and endothelial function (soluble intercell adhesion molecule-1, vascular cell adhesion molecule-1, E-selectin, endothelin-1 and total nitrite) were assessed using nephelometry, immunoassays and spectroscopy. Diabetic retinopathy was graded from two-field fundus photographs according to the Airlie House Classification system and was categorized into no diabetic retinopathy, mild non-proliferative diabetic retinopathy, moderate non-proliferative diabetic retinopathy and vision-threatening diabetic retinopathy, the latter comprising severe non-proliferative diabetic retinopathy, proliferative diabetic retinopathy or clinically significant macular oedema. Multinomial logistic regression was used to assess the associations between serum markers and diabetic retinopathy. RESULTS In the study, 64% of patients (144/224) had diabetic retinopathy and 25% (57/244) had vision-threatening diabetic retinopathy. After controlling for age, gender, diabetes duration, HbA1c , systolic blood pressure, total and HDL cholesterol, smoking, the use of insulin or oral hypoglycaemic agents, nephropathy and cardiovascular disease, a positive association was found between increasing high-sensitivity C-reactive protein levels and the presence of vision-threatening diabetic retinopathy (odds ratio 1.26; 95% CI 1.05-1.51, per sd increase in high-sensitivity C-reactive protein). After stratifying by BMI ( ≥ 30 and < 30 kg/m(2) ), this association was found to be more pronounced in people with a BMI ≥ 30 kg/m(2) (odds ratio 2.9; P for interaction = 0.019). No associations were found between serum markers of endothelial activation and diabetic retinopathy. CONCLUSIONS Higher C-reactive protein levels, but not markers of endothelial function, may be related to more severe diabetic retinopathy. This finding suggests that inflammatory processes are involved in severe diabetic retinopathy, particularly in patients with a BMI ≥ 30 kg/m(2) .
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Affiliation(s)
- M B Sasongko
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Australia; Department of Ophthalmology, Faculty of Medicine, Gadjah Mada University, Yogyakarta, Indonesia
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174
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Wang JJ, Li Y, Chen CY, Hu PJ, Geng LM, Zhou XH. [Site-directed mutagenesis and protein expression of ABCA3 gene in A549 cells]. Zhongguo Dang Dai Er Ke Za Zhi 2015; 17:395-399. [PMID: 25919563] [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: 06/04/2023]
Abstract
OBJECTIVE To study the protocol of construction of the mutation E292V and M723I of hABCA3 gene associated with neonatal respiratory distress syndrome, as well as their eukaryotic green fluorescent protein expression rectors, and to examine the expression of mutation proteins in human lung carcinoma epithelial cells (A549). METHODS Site-directed mutagenesis method based on overlap extension PCR was used to introduce mutations in the two sites which were E292V and M723I in the ABCA3. The PCR fragments were subcloned to PEGFP-C2 vectors to construct the eukaryotic green fluorescent protein expression rectors. A549 cells were transiently transfected with the recombinants using Lipofectamine 2000 and the transfection efficiency was confirmed through GFP signal. The expression and location of recombinants were detected by FV1000 laser scanning microscope. RESULTS Direct sequence analysis confirmed an A to T transition at position 875 in E292V and a G to A transition at position 2169 in M723I. Recombinants were transfected to A549 cells and both wild type and mutant ABCA3 proteins were expressed in the cytoplasm. CONCLUSIONS The eukaryotic green fluorescent protein expression rectors of wild type and mutant ABCA3 gene were constructed and they were successfully expressed in A549 cells. This experiment provides a basis for subsequent research.
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Affiliation(s)
- Juan-Juan Wang
- Department of Neonatology, First Affiliated Hospital, Medical College of Xi'an Jiaotong University, Xi'an 710061, China.
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175
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Zhao Q, Yang ST, Wang JJ, Zhou J, Xing SS, Shen CC, Wang XX, Yue YX, Song J, Chen M, Wei YY, Zhou QP, Dai T, Song YH. TNF alpha inhibits myogenic differentiation of C2C12 cells through NF-κB activation and impairment of IGF-1 signaling pathway. Biochem Biophys Res Commun 2015; 458:790-5. [PMID: 25686491 DOI: 10.1016/j.bbrc.2015.02.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [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: 01/28/2015] [Accepted: 02/05/2015] [Indexed: 01/07/2023]
Abstract
Cachexia or muscle wasting is a common condition that occurs in many chronic diseases. The wasting conditions are characterized by increased levels of TNF-α which was also known as cachectin in the past. But how TNF-α exerts its cachetic effects remains controversial. To clarify this issue, we investigated the impact of TNF-α on C2C12 cell myogenic differentiation. Our results demonstrate that myotube formation was completely inhibited by TNF-α when added to differentiating C2C12 myoblasts. The inhibitory effect of TNF-α on differentiation was accompanied by activation of NF-κB and down regulation of myogenin and Akt. Importantly, TNF-α's effect on differentiation was abolished when IGF-1 was added to the culture. IGF-1 treatment also inhibited NF-κB reporter activity and restored Akt levels. Our data suggest that TNF-α inhibits myogenic differentiation through NF-κB activation and impairment of IGF-1 signaling pathway. The reversal of TNF-α induced inhibition of myogenesis by IGF-1 may have significant therapeutic potential.
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Affiliation(s)
- Q Zhao
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - S T Yang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - J J Wang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China; The Affiliated Wuxi Hospital for Maternal and Child Health Care of Medical University of Nanjing, Wuxi, Jiangsu Province, China
| | - J Zhou
- Department of Surgery, First Affiliated Hospital, Soochow University, Suzhou, China
| | - S S Xing
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - C C Shen
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - X X Wang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Y X Yue
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - J Song
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - M Chen
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Y Y Wei
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Q P Zhou
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - T Dai
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Y H Song
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.
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176
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Liu Q, Li JG, Ying SH, Wang JJ, Sun WL, Tian CG, Feng MG. Unveiling equal importance of two 14-3-3 proteins for morphogenesis, conidiation, stress tolerance and virulence of an insect pathogen. Environ Microbiol 2015; 17:1444-62. [DOI: 10.1111/1462-2920.12634] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/10/2014] [Accepted: 09/11/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Qian Liu
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
- Key Laboratory of Systems Microbial Biotechnology; Tianjin Institute of Industrial Biotechnology; Chinese Academy of Sciences; Tianjin 300308 China
| | - Jin-Gen Li
- Key Laboratory of Systems Microbial Biotechnology; Tianjin Institute of Industrial Biotechnology; Chinese Academy of Sciences; Tianjin 300308 China
| | - Sheng-Hua Ying
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
| | - Juan-Juan Wang
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
| | - Wen-Liang Sun
- Key Laboratory of Systems Microbial Biotechnology; Tianjin Institute of Industrial Biotechnology; Chinese Academy of Sciences; Tianjin 300308 China
| | - Chao-Guang Tian
- Key Laboratory of Systems Microbial Biotechnology; Tianjin Institute of Industrial Biotechnology; Chinese Academy of Sciences; Tianjin 300308 China
| | - Ming-Guang Feng
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
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177
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Yao XJ, Huang KW, Li Y, Zhang Q, Wang JJ, Wang W, Liu J, Lv Z, An YQ, Ding YZ, Corrigan CJ, Wang W, Sun YC, Ying S. Direct comparison of the dynamics of IL-25- and 'allergen'-induced airways inflammation, remodelling and hypersensitivity in a murine asthma model. Clin Exp Allergy 2014; 44:765-77. [PMID: 24575868 DOI: 10.1111/cea.12298] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/24/2014] [Accepted: 02/15/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Interleukin-25 has been implicated in the pathogenesis of asthma from studies on human asthmatics and in murine asthma models. OBJECTIVES In this study, we hypothesized that chronic exposure of the airways to IL-25 alone is able to induce pathogenic changes observed in animal models of asthma. METHODS We performed a detailed comparison of the dynamics of development of cellular infiltration, cytokine expression and airways remodelling and hyperresponsiveness in mice sensitized and challenged with OVA, a classical model of allergic asthma and those exposed to IL-25 alone. RESULTS Intranasal challenge of BALB/c mice with IL-25 alone induced a delayed (compared with OVA-challenge), predominantly eosinophilic and lymphocytic infiltration into the airways lumen, along with increased production of Th2-type cytokines, chemokines and collagen, secretion of epithelial mucus, goblet cell hyperplasia, deposition of subepithelial collagen, airways smooth muscle cell hyperplasia and angiogenesis. Correspondingly, IL-25 as well as OVA challenge both induced airways hyperresponsiveness and increased lung tissue damping. In contrast, IL-25 exposure did not increase IgE or IgG1 production. CONCLUSIONS AND CLINICAL RELEVANCE The data suggest that chronic airways exposure to IL-25 alone is sufficient to induce allergen- and IgE-independent, asthma-like airways inflammation, remodelling and hyperresponsiveness in mice. Thus, IL-25 is a key molecular target in asthma, irrespective of the coexistence of IgE-dependent mechanisms.
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Affiliation(s)
- X J Yao
- the Department of Respiratory Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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178
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Feng DN, Yang YH, Wang DJ, Meng DC, Fu R, Wang JJ, Yu ZH. Mutational analysis of podocyte genes in children with sporadic steroid-resistant nephrotic syndrome. Genet Mol Res 2014; 13:9514-22. [PMID: 25501161 DOI: 10.4238/2014.november.11.16] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Recent studies have demonstrated that mutations in 4 podocyte genes, NPHS1, NPHS2, CD2AP, and WT1, are associated with the pathogenesis of steroid-resistant nephrotic syndrome (SRNS). Systematic investigation of all 4 genes for sporadic SRNS in China has not been performed. We examined 10 Chinese children with sporadic SRNS who showed no response to immunosuppressive agents and 20 SRNS controls who exhibited a response to prolonged steroid or immunosuppressive treatment and achieved complete remission. We analyzed mutations in the 4 podocyte genes, NPHS1, NPHS2, CD2AP, and WT1. Mutational analysis was performed using polymerase chain reaction and direct sequencing. Of the 10 SRNS children who showed no response to immunosuppressive agents, the compound heterozygous NPHS1 mutations 2677A>G (T893A) and *142T>C were identified in 1 patient, while a heterozygous mutation in WT1, 1180C>T (R394W), was found in another patient. Of the 20 SRNS children showing complete remission who responded to prolonged steroid therapy or immunosuppressive agents, 4 heterozygous NPHS1 mutations, 928G>A, IVS8+30C>T, IVS21+14G>A, and IVS25-23C>T, were identified in 4 patients and a heterozygous CD2AP mutation, IVS7-135G>A, was identified in 1 patient. Our results indicate the necessity of genetic examination for mutations in podocyte genes in Chinese SRNS children who show no response to immunosuppressive agents.
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Affiliation(s)
- D N Feng
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
| | - Y H Yang
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
| | - D J Wang
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
| | - D C Meng
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
| | - R Fu
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
| | - J J Wang
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
| | - Z H Yu
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
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179
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Scaglia G, Rodriguez J, Gillespie J, Bhandari B, Wang JJ, McMillin KW. Performance and economic analyses of year-round forage systems for forage-fed beef production in the Gulf Coast. J Anim Sci 2014; 92:5704-15. [PMID: 25367513 DOI: 10.2527/jas.2014-7838] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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
On a global scale, most beef is produced from grazing pastures or rangelands. Certain limitations exist, however, such as not having adequate animal rates of gain for marbling and availability of adequate forage nutritional value and quantity for constant animal weight gains. In the last 20 yr, there has been an increased interest in forage-fed beef for multiple reasons (health related, environmental concerns, and welfare issues). Starting on June 5, 13, 14, and 8 in 4 consecutive yr, 54 steers (initial BW=259±5.6 kg; average of 9 mo of age) were randomly allotted to 3 yr-round forage systems. Each system occupied 6 ha/replicate and had the same stocking rate. System 1 had annual ryegrass (Lolium multiflorum) for winter grazing and bermudagrass (Cynodon dactylon) for summer grazing; while Systems 2 and 3 added rye and a clover mix to the ryegrass and diversified the use of pastures in the fall (dallisgrass [Paspalum dilatatum] and clovers [Trifolium spp.]). System 3 added the use of annual summer forages. During their respective growing season for each forage or forage mix, mass and height did not limit animal performance; however, there was a sampling date effect (P<0.05) for nutritive value variables since it decreased as forages became mature. The ADG observed (0.44 kg) for all systems (P=0.78) during summer was lower than expected and might have been limited by the observed temperature as well as forage nutritive value. Systems 1 and 2 had more grazing days (P=0.03) during summer (155 and 146 d, respectively) compared to System 3 (132 d) due to the greater pasture area of bermudagrass in those systems. Steers in System 3 were fed more hay for a longer period of time (P<0.05) than on the other 2 systems. System 1 and 2 produced more hay per hectare than System 3 (P<0.05). No differences (P>0.05) were detected between systems in ADG year round, during the winter season, or carcass characteristics. Return over total direct costs and total specified expenses were greater for Systems 1 and 2, while System 3 was the lowest. Hay making and bale sales played a major role in explaining the economic results of this study. Where possible, year-round forage systems are a viable alternative for forage-fed beef production; however, the low gains during summer and forage availability during the transition period when hay is necessary deserve further research to find alternatives to improve productivity during those times of the year.
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Affiliation(s)
- G Scaglia
- Iberia Research Station, Louisiana State University Agricultural Center, Jeanerette 70544
| | - J Rodriguez
- Iberia Research Station, Louisiana State University Agricultural Center, Jeanerette 70544
| | - J Gillespie
- Department of Agricultural Economics and Agribusiness, Louisiana State University Agricultural Center, Baton Rouge 70803
| | - B Bhandari
- Department of Agricultural Economics and Agribusiness, Louisiana State University Agricultural Center, Baton Rouge 70803
| | - J J Wang
- School of Plant, Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge 70803
| | - K W McMillin
- School of Animal Sciences, Louisiana State University Agricultural Center, Baton Rouge 70803
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180
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Wang JJ, Li GJ. Relationship between RFC gene expression and intracellular drug concentration in methotrexate-resistant osteosarcoma cells. Genet Mol Res 2014; 13:5313-21. [PMID: 25078587 DOI: 10.4238/2014.july.24.10] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Osteosarcoma is a primary malignant tumor in adolescents, associated with high mortality and morbidity. The high-dose methotrexate (MTX) chemotherapy used to treat this disease may induce primary or secondary drug resistance, resulting in a reduced effect of comprehensive treatment. In this study, the relationship between reduced folate carrier (RFC) gene expression and intracellular drug concentration in MTX-resistant osteosarcoma cells (Saos-2) was investigated. MTX-resistant human osteosarcoma cells (Saos-2/MTX2.2, Saos-2/MTX4.4) were prepared. The sensitivities of Saos-2 (primary cells), Saos-2/MTX2.2, and Saos-2/MTX4.4 cells to MTX, diamminedichloroplatinum (DDP), ifosfamide (IFO), epirubicine (EPI), adriamycin (ADM), theprubicin (THP), and paclitaxel (PTX) were detected by MTT. The median inhibitory concentration (IC50) and resistance index were measured. Semi-quantitative RT-PCR was used to evaluate the expression of RFC gene in cells. The intracellular (3)H-MTX concentration was determined. Results showed that IC50 of Saos-2/MTX2.2 and Saos-2/MTX4.4 was 4.87 and 12.73 times that of Saos-2, respectively. Both Saos-2/MTX2.2 and Saos-2/MTX4.4 had resistance to IFO, ADM, EPI, THP, and PTX, but not DDP. Compared to Saos-2/MTX2.2 and Saos-2/MTX4.4, the expression of RFC mRNA in Saos-2 was significantly higher. The intracellular (3)H-MTX concentration reached a peak at 50 min. After 70 min, the concentration was maintained at a plateau. During this phase, the (3)H-MTX concentration in Saos-2 cells was 2.15 times higher than the concentration in Saos-2/MTX4.4 cells. The reduced RFC mRNA expression in PTX-resistant osteosarcoma cells may be related to the decrease in intracellular (3)H-MTX concentration.
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Affiliation(s)
- J J Wang
- Department of Oncology, Huaihe Hospital of Henan University, Kaifeng, China
| | - G J Li
- Department of Orthopedics, Huaihe Hospital of Henan University, Kaifeng, China
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181
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Qiu L, Wang JJ, Ying SH, Feng MG. Wee1 and Cdc25 control morphogenesis, virulence and multistress tolerance ofBeauveria bassianaby balancing cell cycle-required cyclin-dependent kinase 1 activity. Environ Microbiol 2014; 17:1119-33. [DOI: 10.1111/1462-2920.12530] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 05/31/2014] [Accepted: 05/31/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Lei Qiu
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
| | - Juan-Juan Wang
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
| | - Sheng-Hua Ying
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
| | - Ming-Guang Feng
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang 310058 China
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182
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Mirza I, O'Connell G, Wang JJ, Lunney JG. Comparison of nanosecond and femtosecond pulsed laser deposition of silver nanoparticle films. Nanotechnology 2014; 25:265301. [PMID: 24915883 DOI: 10.1088/0957-4484/25/26/265301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nanoparticle (NP) films of silver were prepared using nanosecond (ns) and femtosecond (fs) pulsed laser deposition (PLD) in vacuum. The flux and energy distribution of the ions in the plasma part of the ablation plume were measured using a Langmuir ion probe. The deposition energy efficiencies of ns and fs silver PLD were also compared. For equivalent thickness up to ∼3 nm the NPs made by ns-PLD are well separated and roughly circular, but for higher thicknesses the NPs begin to coalesce. For equivalent thickness up to 7 nm the fs films are comprised of well separated NPs, though the mean NP size and the surface coverage increase with equivalent thickness. The mean Feret diameter for both ns- and fs-PLD films increases with increasing equivalent solid-density thickness. The surface plasmon resonance peak was observed to red shift for both ns- and fs-PLD films as the equivalent solid-density thickness was increased from 1 nm to 7 nm.
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Affiliation(s)
- I Mirza
- School of Physics and CRANN, Trinity College Dublin, Dublin 2, Ireland
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183
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Wang L, Wang C, Ge TT, Wang JJ, Liu TK, Hou XL, Li Y. Expression analysis of self-incompatibility-associated genes in non-heading Chinese cabbage. Genet Mol Res 2014; 13:5025-35. [PMID: 25062491 DOI: 10.4238/2014.july.4.18] [Citation(s) in RCA: 8] [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: 11/03/2022]
Abstract
In Brassicaceae, a self-incompatibility (SI) system mediates pollen-pistil interactions. Self-pollen could be recognized and rejected by incompatible pistils. Several components involved in the SI response have been determined, including S-locus receptor kinase (SRK), S-locus cysteine-rich protein/S-locus protein 11, and arm repeat-containing protein 1 (ARC1). However, the components involved in the SI system of Brassicaceae are not fully understood. Here, we detected expression patterns of 24 SI-related genes in non-heading Chinese cabbage (Brassica campestris ssp chinensis Makino) after compatible and incompatible pollination, and potential interaction relationships of these genes were predicted. SRK and ARC1 transcripts increased initially 0.25 h after incompatible pollination, while kinase-associated protein phosphatase had an expression pattern that was opposite that of SRK transcripts during self-pollination. Plant U-box 8 was not required in the SI response of non-heading Chinese cabbage. Our results showed that the SI signal of non-heading Chinese cabbage could occur within 0.25 h after self-pollination. The hypothetical interaction relationships indicated that plastid-lipid-associated protein and malate dehydrogenase could be negatively regulated by chaperonin 10, glutathione transferase, cytidylate kinase/uridylate kinase, and methionine synthase by indirect interactions. Our findings could be helpful to better understand potential roles of these components in the SI system of non-heading Chinese cabbage.
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Affiliation(s)
- L Wang
- Horticultural Department, Nanjing Agricultural University, Nanjing, China
| | - C Wang
- Horticultural Department, Nanjing Agricultural University, Nanjing, China
| | - T T Ge
- Horticultural Department, Nanjing Agricultural University, Nanjing, China
| | - J J Wang
- Horticultural Department, Nanjing Agricultural University, Nanjing, China
| | - T K Liu
- Horticultural Department, Nanjing Agricultural University, Nanjing, China
| | - X L Hou
- Horticultural Department, Nanjing Agricultural University, Nanjing, China
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184
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Chiu CC, Chen JJ, Su SB, Wang JJ. Value of peritoneal cytology in potentially resectable pancreatic cancer (Br J Surg 2013; 100: 1791-1796). Br J Surg 2014; 101:1031. [PMID: 24915792 DOI: 10.1002/bjs.9556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- C C Chiu
- Department of Medical Research, Chi Mei Medical Centre, Tainan and Liouying, PO Box 174 Shan Hua, Tainan County, 741, Taiwan.
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185
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Wang JJ, Qiu L, Cai Q, Ying SH, Feng MG. Three α-1,2-mannosyltransferases contribute differentially to conidiation, cell wall integrity, multistress tolerance and virulence of Beauveria bassiana. Fungal Genet Biol 2014; 70:1-10. [PMID: 24981201 DOI: 10.1016/j.fgb.2014.06.010] [Citation(s) in RCA: 31] [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: 04/29/2014] [Revised: 06/02/2014] [Accepted: 06/22/2014] [Indexed: 11/25/2022]
Abstract
Members of α-1,2-mannosyltransferase (Ktr) family are required for protein O-mannosylation for the elongation of Ser/Thr mannose residues in yeasts but functionally unknown in most filamentous fungi. Here we characterized the functions of the Ktr orthologues Ktr1, Ktr4 and Kre2/Mnt1 in Beauveria bassiana, a filamentous enotmopathogen, and found that they were positive, but differential, mediators of many biological traits. Inactivation of Ktr4 and Kre2 resulted in 92% reduction of conidial yield on a standard medium and growth defects on substrates with altered carbon or nitrogen sources and availability, accompanied with reduced conidial size and complexity. This contrasts to the dispensability of Ktr1 for fungal growth and conidiation. More cell wall damage occurred in Δktr4 and Δkre2 than in Δktr1, including altered contents of the cell wall components mannoproteins, α-glucans and chitin, more carbohydrate epitopes changed on conidial surfaces, much lower conidial hydrophobicity, and thinner cell walls. Consequently, Δktr4 and Δkre2 became more sensitive to oxidation and cell wall perturbation than Δktr1 during colony growth or conidial germination despite less difference in their sensitivities to two osmotic agents. Conidial thermotolerance, UV-B resistance and virulence were all lowered greatly in Δktr4 and Δkre2 but only the thermotolerance decreased in Δktr1. All the phenotypical changes were well restored to wild-type levels by the complementation of each target gene. Our results indicate that Ktr4 and Kre2 contribute more to the biocontrol potential of B. bassiana than Ktr1 although all of them are significant contributors.
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Affiliation(s)
- Juan-Juan Wang
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Lei Qiu
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Qing Cai
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China.
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186
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Wang JJ, Yang GX, Zhang WC, Lu L, Tsuneyama K, Kronenberg M, Véla JL, Lopez-Hoyos M, He XS, Ridgway WM, Leung PSC, Gershwin ME. Escherichia coli infection induces autoimmune cholangitis and anti-mitochondrial antibodies in non-obese diabetic (NOD).B6 (Idd10/Idd18) mice. Clin Exp Immunol 2014; 175:192-201. [PMID: 24128311 DOI: 10.1111/cei.12224] [Citation(s) in RCA: 43] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2013] [Indexed: 01/14/2023] Open
Abstract
Several epidemiological studies have demonstrated that patients with primary biliary cirrhosis (PBC) have a higher incidence of urinary tract infections (UTI) and there is significant homology of the immunodominant mitochondrial autoantigen, the E2 component of the pyruvate dehydrogenase complex (PDC-E2), between mammals and bacteria. Previous work has demonstrated that non-obese diabetic (NOD).B6 Idd10/Idd18 infected with Novosphingobium aromaticivorans developed liver lesions similar to human PBC. It was postulated that the biliary disease was dependent upon the presence of the unique N. aro glycosphingolipids in activating natural killer T (NK T) cells. To address this issue, we infected NOD.B6 Idd10/Idd18 mice with either Escherichia coli, N. aro or use of a phosphate-buffered saline (PBS) vehicle control and serially followed animals for the appearance of liver pathology and anti-mitochondrial autoantibodies (AMA). Of striking importance, the biliary disease of E. coli-infected mice was more severe than N. Aro-infected mice and the titre of AMA was higher in E. coli-infected mice. Furthermore, the immunopathology did not correlate with the ability of bacterial extracts to produce antigen-dependent activation of NK T cells. Our data suggest that the unique glycosphingolipids of N. aro are not required for the development of autoimmune cholangitis. Importantly, the data highlight the clinical significance of E. coli infection in a genetically susceptible host, and we suggest that the appearance of autoimmune cholangitis is dependent upon molecular mimicry. These data highlight that breach of tolerance to PDC-E2 is probably the first event in the natural history of PBC in genetically susceptible hosts.
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Affiliation(s)
- J J Wang
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA, USA
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187
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Qiu L, Wang JJ, Chu ZJ, Ying SH, Feng MG. Phytochrome controls conidiation in response to red/far-red light and daylight length and regulates multistress tolerance inBeauveria bassiana. Environ Microbiol 2014; 16:2316-28. [DOI: 10.1111/1462-2920.12486] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 04/03/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Lei Qiu
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang China
| | - Juan-Juan Wang
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang China
| | - Zhen-Jian Chu
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang China
| | - Sheng-Hua Ying
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang China
| | - Ming-Guang Feng
- Institute of Microbiology; College of Life Sciences; Zhejiang University; Hangzhou Zhejiang China
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188
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Zhong X, Gao S, Wang JJ, Dong L, Huang J, Zhang LL, Wang T. Effects of linseed oil and palm oil on growth performance, tibia fatty acid and biomarkers of bone metabolism in broilers. Br Poult Sci 2014; 55:335-42. [PMID: 24641587 DOI: 10.1080/00071668.2014.891097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. This study was conducted to determine the effects of different dietary fat sources on growth performance, tibia fatty acids and biomarkers of bone metabolism in broilers. 2. One-d-old commercial Arbor Acres broilers were fed with a maize-soya bean basal diet for 42 d, supplemented with oils according to the following 5 treatments: lard (lard group); linseed oil (linseed oil group); palm oil (palm oil group); linseed oil + palm oil (60:40 or 40:60 w/w, LP-1 group and LP-2 group, respectively). 3. No significant differences in weight gain, feed intake and gain/feed ratio were observed between the lard and linseed oil groups. Birds fed on palm oil had significantly greater weight gain and feed intake than those fed on lard or linseed oil. Growth performance in LP-1 and LP-2 was significantly greater than that of single-oil groups. 4. Tibia growth and bone characteristics were not influenced by supplementation with lard, linseed oil, or palm oil alone, but broilers fed on a mixture of fats had significantly greater tibia weight and length compared to broilers fed on linseed oil. Bone mineral density in tibia was significantly increased in LP-1 and LP-2 groups. 5. Supplementation of linseed oil alone or in combination with palm oil enhanced apparent digestibility of calcium, reduced serum calcium and increased tibia calcium concentrations. Moreover, supplementation with linseed oil alone or in combination with palm oil had a positive effect on biomarkers of bone growth. 6. The combination of linseed and palm oils was beneficial for growth performance, tibia growth and biomarkers of bone metabolism.
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Affiliation(s)
- X Zhong
- a College of Animal Science & Technology , Nanjing Agricultural University , Nanjing , Jiangsu , China
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189
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Wang JJ, Qiu L, Chu ZJ, Ying SH, Feng MG. The connection of protein O-mannosyltransferase family to the biocontrol potential of Beauveria bassiana, a fungal entomopathogen. Glycobiology 2014; 24:638-48. [DOI: 10.1093/glycob/cwu028] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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190
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Persechini L, Verre R, McAlinden N, Wang JJ, Ranjan M, Facsko S, Shvets IV, McGilp JF. An analytic approach to modeling the optical response of anisotropic nanoparticle arrays at surfaces and interfaces. J Phys Condens Matter 2014; 26:145302. [PMID: 24651594 DOI: 10.1088/0953-8984/26/14/145302] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Anisotropic nanoparticle (NP) arrays with useful optical properties, such as localized plasmon resonances (LPRs), can be grown by self-assembly on substrates. However, these systems often have significant dispersion in NP dimensions and distribution, which makes a numerical approach to modeling the LPRs very difficult. An improved analytic approach to this problem is discussed in detail and applied successfully to NP arrays from three systems that differ in NP metal, shape and distribution, and in substrate and capping layer. The materials and anisotropic NP structures that will produce LPRs in desired spectral regions can be determined using this approach.
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Affiliation(s)
- L Persechini
- School of Physics, Trinity College Dublin, Dublin 2, Ireland. Centre for Industrial and Engineering Optics, School of Physics, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
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191
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Wang JJ, Hu JM, Yang TN, Feng M, Zhang JX, Chen LQ, Nan CW. Effect of strain on voltage-controlled magnetism in BiFeO₃-based heterostructures. Sci Rep 2014; 4:4553. [PMID: 24686503 PMCID: PMC3971450 DOI: 10.1038/srep04553] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [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: 01/13/2014] [Accepted: 03/14/2014] [Indexed: 11/24/2022] Open
Abstract
Voltage-modulated magnetism in magnetic/BiFeO3 heterostructures can be driven by a combination of the intrinsic ferroelectric-antiferromagnetic coupling in BiFeO3 and the antiferromagnetic-ferromagnetic exchange interaction across the heterointerface. However, ferroelectric BiFeO3 film is also ferroelastic, thus it is possible to generate voltage-induced strain in BiFeO3 that could be applied onto the magnetic layer across the heterointerface and modulate magnetism through magnetoelastic coupling. Here, we investigated, using phase-field simulations, the role of strain in voltage-controlled magnetism for these BiFeO3-based heterostructures. It is predicted, under certain condition, coexistence of strain and exchange interaction will result in a pure voltage-driven 180° magnetization reversal in BiFeO3-based heterostructures.
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Affiliation(s)
- J J Wang
- 1] State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China [2]
| | - J M Hu
- 1] State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China [2] Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA [3]
| | - T N Yang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - M Feng
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - J X Zhang
- Department of Physics, Beijing Normal University, Beijing, 100875, China
| | - L Q Chen
- 1] State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China [2] Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - C W Nan
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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192
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Wei L, Chen B, Li XY, Liu SG, Wang JJ. Genetic diversity of four protected indigenous chicken breeds in China using microsatellite markers. S AFR J ANIM SCI 2014. [DOI: 10.4314/sajas.v43i4.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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193
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Xing SS, Shen CC, Godard MP, Wang JJ, Yue YY, Yang ST, Zhao Q, Zhang SB, Wang TX, Yang XL, Delafontaine P, He Y, Song YH. Bortezomib inhibits C2C12 growth by inducing cell cycle arrest and apoptosis. Biochem Biophys Res Commun 2014; 445:375-80. [PMID: 24525132 DOI: 10.1016/j.bbrc.2014.02.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 02/01/2014] [Accepted: 02/04/2014] [Indexed: 10/25/2022]
Abstract
Proteosome inhibitors such as bortezomib (BTZ) have been used to treat muscle wasting in animal models. However, direct effect of BTZ on skeletal muscle cells has not been reported. In the present study, our data showed that C2C12 cells exhibited a dose-dependent decrease in cell viability in response to increasing concentrations of BTZ. Consistent with the results of cell viability, Annexin V/PI analysis showed a significant increase in apoptosis after exposing the cells to BTZ for 24h. The detection of cleaved caspase-3 further confirmed apoptosis. The apoptosis induced by BTZ was associated with reduced expression of p-ERK. Cell cycle analysis revealed that C2C12 cells underwent G2/M cell cycle arrest when incubated with BTZ for 24h. Furthermore, BTZ inhibited formation of multinucleated myotubes. The inhibition of myotube formation was accompanied by decreased expression of Myogenin. Our data suggest that BTZ induces cell death and inhibits differentiation of C2C12 cells at clinically relevant doses.
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Affiliation(s)
- S S Xing
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - C C Shen
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - M P Godard
- Department of Nutrition and Kinesiology, University of Central Missouri, Warrensburg, MO 64093, USA
| | - J J Wang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - Y Y Yue
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - S T Yang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - Q Zhao
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - S B Zhang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - T X Wang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - X L Yang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China
| | - P Delafontaine
- Tulane University Heart and Vascular Institute, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Y He
- Thrombosis and Hemostasis Key Lab, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.
| | - Y H Song
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University, 199 Ren Ai Road, Suzhou 215123, China.
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194
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Gopinath B, Flood VM, Wang JJ, Burlutsky G, Mitchell P. Lower dairy products and calcium intake is associated with adverse retinal vascular changes in older adults. Nutr Metab Cardiovasc Dis 2014; 24:155-161. [PMID: 24418384 DOI: 10.1016/j.numecd.2013.06.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/16/2013] [Accepted: 06/17/2013] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND AIMS Higher consumption of dairy products and calcium is likely to play a role in maintaining optimal vascular health. In this study, we aimed to explore the associations between consumption of total-, regular- and low-fat dairy foods, and total calcium intake with retinal vascular caliber. METHODS AND RESULTS 2813 Blue Mountains Eye Study participants aged 50+ years had dietary data collected using a semi-quantitative food frequency questionnaire, and serves of dairy consumption were calculated. Fundus photographs were taken and retinal vascular caliber measured using computer-assisted techniques and summarized. After adjusting for age, sex, body mass index, smoking, mean arterial blood pressure, serum glucose, white cell count, history of diagnosed hypertension, stroke and coronary heart disease, plus retinal arteriolar caliber, participants in the lowest quintile of total dairy consumption compared to those in the remaining highest 4 quintiles had significantly wider retinal venular caliber, 227.2 versus 224.7 μm, respectively (multivariable-adjusted p = 0.002). Also, subjects in the lowest quintile of low-fat dairy product consumption versus those in the remaining quintiles of low-fat dairy intake had wider retinal venules (∼ 1.7 μm, p = 0.03) and narrower retinal arterioles (∼ 1.4 μm, p = 0.04). Participants in the lowest quintile versus highest quintile of total dietary calcium intake had ∼ 2.3 μm wider retinal venules (multivariable-adjusted p-trend = 0.02). CONCLUSIONS A significant association was observed between lower intake of dairy products or calcium and adverse retinal vascular signs. We cannot discount the possibility of confounding from unmeasured risk factors; hence, further studies are warranted to confirm these findings.
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Affiliation(s)
- B Gopinath
- Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, NSW, Australia
| | - V M Flood
- Faculty of Health and Behavioural Sciences, University of Wollongong, Sydney, NSW, Australia
| | - J J Wang
- Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, NSW, Australia; Centre for Eye Research Australia, Department of Ophthalmology, University of Melbourne, Australia
| | - G Burlutsky
- Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, NSW, Australia
| | - P Mitchell
- Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, NSW, Australia.
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195
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Hao L, Ouyang T, Lai L, Liu YX, Chen S, Hu H, Chang CT, Wang JJ. Temperature effects on arsenate adsorption onto goethite and its preliminary application to arsenate removal from simulative geothermal water. RSC Adv 2014. [DOI: 10.1039/c4ra08318k] [Citation(s) in RCA: 12] [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: 11/21/2022] Open
Abstract
Laboratory batch experiments were conducted in order to assess the impacts of temperature on the performance of goethite in removing arsenate from water.
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Affiliation(s)
- Linlin Hao
- Department of Environmental Science and Technology
- College of the Environment and Ecology
- and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem
- Xiamen University
- Xiamen 361102, China
| | - Tong Ouyang
- Department of Environmental Science and Technology
- College of the Environment and Ecology
- and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem
- Xiamen University
- Xiamen 361102, China
| | - Limin Lai
- Department of Environmental Science and Technology
- College of the Environment and Ecology
- and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem
- Xiamen University
- Xiamen 361102, China
| | - Yao-Xing Liu
- College of Hydraulic and Environmental Engineering
- China Three Gorges University
- Yichang 443002, China
| | - Shanshan Chen
- Department of Environmental Science and Technology
- College of the Environment and Ecology
- and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem
- Xiamen University
- Xiamen 361102, China
| | - Hongyou Hu
- Department of Environmental Science and Technology
- College of the Environment and Ecology
- and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem
- Xiamen University
- Xiamen 361102, China
| | - Chang-Tang Chang
- Department of Environmental Engineering
- National ILAN University
- I-Lan 26047, Taiwan
| | - Juan-Juan Wang
- Department of Environmental Science and Technology
- College of the Environment and Ecology
- and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem
- Xiamen University
- Xiamen 361102, China
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196
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Wang HHX, Wang JJ, Zhou ZH, Wang XW, XU L. General practice education and training in southern China: recent development and ongoing challenges under the health care reform. Malays Fam Physician 2013; 8:2-10. [PMID: 25893051 PMCID: PMC4400683] [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] [Indexed: 06/04/2023]
Abstract
China has launched a general practice (GP)-orientated primary care reform in 2009 to develop a more productive, coordinated, and cost-effective system to maintain and improve the health and well-being of one-fifth of the world population. The restructure of the health care system with a focus on primary care requires practitioners working on GP as gatekeepers for service delivery that is responsive to the needs of people. It is particularly prioritised to establish a sound education and training system to ensure that the competencies of practitioners are aligned with local health care needs. This article aims to provide a brief review of the development of GP, including exemplary model of education and training currently implemented in southern China, as well as the challenges to be addressed in the next step. There is a shortage of well-trained and qualified general practitioners in China where more than half of the licensed clinicians in primary care are educated below the undergraduate level. Although there is a stepwise increase in recognition that the capacity of GP is pivotal to the success of primary care development in China, challenges coming from resource restriction, rural and urban disparity, social attitude, and community involvement are highlighted as major bottlenecks that currently hinder the rapid development of GP in China. Supportive policy and guidelines are necessary to build up strong GP recognition and ensure adequate resources to underpin a robust primary care system to deliver affordable and effective health care services for the world's largest population. It might share some similar experiences with other countries that are struggling to develop a GP-based primary care system.
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Affiliation(s)
- HHX Wang
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong
- General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow
| | - JJ Wang
- School of Public Health, Guangzhou Medical University
| | - ZH Zhou
- School of Public Health, Guangzhou Medical University
| | - XW Wang
- Guangdong General Practice Education and Training Centre
| | - L XU
- Guangdong General Practice Education and Training Centre
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197
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Jang Y, Lu SA, Chen ZP, Ma J, Xu CQ, Zhang CZ, Wang JJ. Genetic polymorphisms of CCND1 and PTEN in progression of esophageal squamous carcinoma. Genet Mol Res 2013; 12:6685-91. [PMID: 24391010 DOI: 10.4238/2013.december.13.2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Cyclin D1 (CCND1) plays a significant role in G1-S transition of cell cycle, and phosphatase and a tensin homologue (PTEN) negatively regulate cell cycle through phosphatidylinositol 3-kinase (PI3K)/AKT signaling. CCND1 and PTEN genetic polymorphisms might induce susceptibility to the occurrence of esophageal squamous cell carcinoma (ESCC). Three hundred and four ESCC patients and 413 healthy controls from Anyang, China, were enrolled in this study. All genotyping at CCND1 (807 G/A) and PTEN (rs701848 T/C and rs2735343 C/G) were identified by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. Unconditional logistic regression model was used to analyze the correlation between the polymorphisms and the susceptibility to develop ESCC. Statistically significant differences were observed between cases and controls in distribution of genotypes or alleles at PTEN rs701848 T/C and rs2735343 C/G, with either haplotype TG or CG possessing notably higher proportion in cases than in the controls. However, such difference could not be found in the distribution of the polymorphisms at CCND1 807 G/A. In summary, the polymorphisms of PTEN rs701848 T/C and rs2735343 C/G might represent crucial modifying factors for development of ESCC.
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Affiliation(s)
- Y Jang
- Medical Department, People's Hospital of Lanshan District, Linyi, Shandong, China
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198
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Yang YH, Zhao F, Feng DN, Wang JJ, Wang CF, Huang J, Nie XJ, Xia GZ, Chen GM, Yu ZH. Wilms' tumor suppressor gene mutations in girls with sporadic isolated steroid-resistant nephrotic syndrome. Genet Mol Res 2013; 12:6184-91. [PMID: 24338413 DOI: 10.4238/2013.december.4.5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Mutations in the Wilms' tumor suppressor gene (WT1) can lead to syndromic forms of steroid-resistant nephrotic syndrome (SRNS) such as Denys-Drash or Frasier syndrome and can cause isolated SRNS. A mutation within WT1 is a frequent cause of sporadic isolated SRNS in girls. In a worldwide cohort of girls, the rate of occurrence was 10.8%. Previous reports have indicated that in Chinese girls, the detection rate of WT1 mutations is 16.7% for early onset isolated nephrotic syndrome. The detection rate of WT1 mutations in Chinese girls with sporadic isolated SRNS is unknown. We examined WT1 mutations in 14 Chinese girls with sporadic isolated SRNS using polymerase chain reaction and direct sequencing and studied a control group of 38 boys with sporadic isolated SRNS. We identified a WT1 mutation in 1 of 14 (7.1% detection rate) Chinese girls with sporadic isolated SRNS. No mutations occurred in WT1 in the remaining 13 girls or the control group. Our investigation supports the necessity of genetic examination for mutations in WT1 in girls with sporadic isolated SRNS.
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Affiliation(s)
- Y H Yang
- Department of Pediatrics, Fuzhou Dongfang Hospital, Fuzhou, Fujian, China
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199
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Che Azemin MZ, Ab Hamid F, Aminuddin A, Wang JJ, Kawasaki R, Kumar DK. Age-related rarefaction in retinal vasculature is not linear. Exp Eye Res 2013; 116:355-358. [PMID: 24416767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The fractal dimension is a global measure of complexity and is useful for quantifying anatomical structures, including the retinal vascular network. A previous study found a linear declining trend with aging on the retinal vascular fractal dimension (DF); however, it was limited to the older population (49 years and older). This study aimed to investigate the possible models of the fractal dimension changes from young to old subjects (10–73 years). A total of 215 right-eye retinal samples, including those of 119 (55%) women and 96 (45%) men, were selected. The retinal vessels were segmented using computer-assisted software, and non-vessel fragments were deleted. The fractal dimension was measured based on the log–log plot of the number of grids versus the size. The retinal vascular DF was analyzed to determine changes with increasing age. Finally, the data were fitted to three polynomial models. All three models are statistically significant (Linear: R(2) = 0.1270, 213 d.f., p < 0.001, Quadratic: R(2) = 0.1536, 212 d.f., p < 0.001, Cubic: R(2) = 0.1529, 211 d.f., p < 0.001). The quadratic regression is significantly better than the linear regression (p < 0.001); however, the increase in R(2) from the quadratic model to the cubic model is not significant (p = 0.97). These results suggest that the decreasing trend of the fractal dimension associated with aging is better explained by the quadratic model than by the linear and cubic models in a sample with a broader age spectrum.
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200
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Che Azemin MZ, Ab Hamid F, Aminuddin A, Wang JJ, Kawasaki R, Kumar DK. Age-related rarefaction in retinal vasculature is not linear. Exp Eye Res 2013; 116:355-358. [PMID: 24512773 DOI: 10.1016/j.exer.2013.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 08/05/2013] [Revised: 10/11/2013] [Accepted: 10/14/2013] [Indexed: 10/26/2022]
Abstract
The fractal dimension is a global measure of complexity and is useful for quantifying anatomical structures, including the retinal vascular network. A previous study found a linear declining trend with aging on the retinal vascular fractal dimension (DF); however, it was limited to the older population (49 years and older). This study aimed to investigate the possible models of the fractal dimension changes from young to old subjects (10-73 years). A total of 215 right-eye retinal samples, including those of 119 (55%) women and 96 (45%) men, were selected. The retinal vessels were segmented using computer-assisted software, and non-vessel fragments were deleted. The fractal dimension was measured based on the log-log plot of the number of grids versus the size. The retinal vascular DF was analyzed to determine changes with increasing age. Finally, the data were fitted to three polynomial models. All three models are statistically significant (Linear: R2 = 0.1270, 213 d.f., p < 0.001, Quadratic: R2 = 0.1536, 212 d.f., p < 0.001, Cubic: R2 = 0.1529, 211 d.f., p < 0.001). The quadratic regression is significantly better than the linear regression (p < 0.001); however, the increase in R2 from the quadratic model to the cubic model is not significant (p = 0.97). These results suggest that the decreasing trend of the fractal dimension associated with aging is better explained by the quadratic model than by the linear and cubic models in a sample with a broader age spectrum.
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Affiliation(s)
- M Z Che Azemin
- Department of Optometry and Visual Science, Faculty of Allied Health Sciences, International Islamic University Malaysia, Malaysia.
| | - F Ab Hamid
- Department of Optometry and Visual Science, Faculty of Allied Health Sciences, International Islamic University Malaysia, Malaysia
| | - A Aminuddin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Malaysia
| | - J J Wang
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Australia; Centre for Vision Research, Westmead Millennium Institute, University of Sydney, Sydney, Australia
| | - R Kawasaki
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Australia
| | - D K Kumar
- School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
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