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Dong X, Kong C, Zhang Z, Liu X, Zhan B, Chen Z, Shi D. hZIP1 that is down-regulated in clear cell renal cell carcinoma is negatively associated with the malignant potential of the tumor. Urol Oncol 2014; 32:885-92. [PMID: 24878177 DOI: 10.1016/j.urolonc.2014.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 01/17/2023]
Abstract
OBJECTIVE The human ZRT, IRT-like protein 1 (hZIP1) has been associated with tumorigenesis. However, its role in clear cell renal cell carcinoma (ccRCC) has not been yet reported. The objective was to investigate hZIP1 expression in ccRCC and its association with clinicopathological features. MATERIALS AND METHODS A total of 106 ccRCC tissue samples and corresponding normal kidney tissue samples were examined, along with 3 ccRCC cell lines (ACHN, 769-P, and 786-O). Real-time polymerase chain reaction, Western blot, and immunohistochemistry were used to investigate the expression of hZIP1 and its relationship with clinicopathological features. The ACHN cell line, exhibiting the highest hZIP1 expression, was transfected with hZIP1 small interfering RNA or mock small interfering RNA. Cellular proliferation was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Invasion was determined by Transwell assay. RESULTS The level of hZIP1 was decreased in ccRCC tissues when compared with normal tissues. hZIP1 expression significantly decreased with increasing clinical stage and pathological grade in ccRCC samples (P<0.05), showing a significant negative correlation with the histological grade (P<0.05). High hZIP1 expression was associated with a better disease-free survival (P<0.01). Silencing of hZIP1 expression enhanced the proliferative and invasive abilities of ACHN cells. CONCLUSIONS Results suggest that hZIP1 may act as a tumor suppressor in ccRCC. hZIP1 is closely correlated with clinicopathological features. High hZIP1 expression may be an indicator of good prognosis in ccRCC.
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Zhang N, Xie YP, Pang L, Zang XX, Wang J, Shi D, Wu Y, Liu XL, Wang GH. Paraquat increases connective tissue growth factor expression and impairs lung fibroblast proliferation and viscoelasticity. Hum Exp Toxicol 2014; 33:1232-40. [PMID: 24556028 DOI: 10.1177/0960327114524239] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This in vitro study was designed to investigate the molecular mechanisms of paraquat-induced damage using cultured human fetal lung fibroblasts (MRC-5 cells), in order to promote the development of improved therapies for paraquat poisoning. Paraquat’s effects on proliferation were examined by flow cytometry, on viscoelasticity by the micropipette aspiration technique, and on connective tissue growth factor (CTGF) expression by real-time polymerase chain reaction and enzyme-linked immunosorbent assay. Paraquat was found to significantly reduce the proliferation index of MRC-5 cells in a concentration-dependent manner ( p < 0.05) and to significantly impair the viscoelastic properties in a time-independent manner ( p < 0.05). Exposure to paraquat led to a significant and time-dependent increase in CTGF expression ( p < 0.05) and induced changes in the morphology and biomechanical characteristics of the MRC-5 cells. These findings not only provide novel insights into the mechanisms of paraquat-induced lung fibrosis but may represent useful targets of improved molecular-based therapies for paraquat poisoning.
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Zhang CT, Shi D, Zheng Y, Zheng CY, Li QH. Chronopharmacokinetics of puerarin in diabetic rats. Indian J Pharm Sci 2013; 75:357-61. [PMID: 24082353 PMCID: PMC3783755 DOI: 10.4103/0250-474x.117407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 04/05/2013] [Accepted: 04/09/2013] [Indexed: 11/30/2022] Open
Abstract
Puerarin injection has been widely used for clinic treatment of diabetes recently. To assess the relationship between the administration time of puerarin and the blood concentration of puerarin as well as its pharmacokinetic parameters, the diabetic rat model was used in current study. The rats were randomly divided into morning and evening groups according to the administration time. After the puerarin injection, blood glucose was tested in order to know whether the efficiency of puerarin was influenced by its concentration and pharmacokinetic parameters. Our results show that the average concentration of puerarin in the evening group is significantly higher than that in the morning group. The numbers of t1/2α, t1/2β, CL and AUC(0-∞) are significantly different between the morning and evening groups. The blood glucose level in the evening group was lower than that in the morning group. The speed of its onset is higher and the blood glucose level declines much more significantly in the evening group. These findings suggest that the concentration and pharmacokinetic parameters of puerarin affect its efficiency in diabetic rats. Therefore, it might be better to give puerarin in evening than in the morning for the mellitus treatment.
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Zhang Y, McClellan M, Efros L, Shi D, Bielekova B, Tang MT, Vexler V, Sheridan JP. Daclizumab reduces CD25 levels on T cells through monocyte-mediated trogocytosis. Mult Scler 2013; 20:156-64. [PMID: 23846354 DOI: 10.1177/1352458513494488] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Daclizumab is a humanized monoclonal antibody that prevents interleukin-2 (IL-2) binding to CD25, blocking IL-2 signaling by cells that require high-affinity IL-2 receptors to mediate IL-2 signaling. The phase 2a CHOICE study evaluating daclizumab as a treatment for multiple sclerosis (MS) included longitudinal analysis of activated T cell counts. Whereas an exposure-dependent relationship was observed between daclizumab and reductions in HLA-DR(+)-activated T cells, a similar relationship was not observed for reductions in CD25 levels. The objective of this report is to determine the mechanism by which daclizumab reduces CD25 levels on peripheral blood mononuclear cells (PBMCs) using cytometric techniques. Daclizumab reduced T cell CD25 levels through a mechanism that required the daclizumab-Fc domain interaction with Fc receptors (FcR) on monocytes, but not on natural killer (NK) cells, and was unrelated to internalization or cell killing. Activated CD4(+) T cells and FoxP3(+) Treg cells showed evidence of trogocytosis of the CD25 antigen in the presence of monocytes. A daclizumab variant that retained affinity for CD25 but lacked FcR binding did not induce trogocytosis and was significantly less potent as an inhibitor of IL-2-induced proliferation of PBMCs. In conclusion, Daclizumab-induced monocyte-mediated trogocytosis of CD25 from T cells appears to be an additional mechanism contributing to daclizumab inhibition of IL-2 signaling.
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Mu W, Wen H, Shi D, Yang Y. Molecular cloning and expression analysis of estrogen receptor betas (ERβ1 and ERβ2) during gonad development in the Korean rockfish, Sebastes schlegeli. Gene 2013; 523:39-49. [DOI: 10.1016/j.gene.2013.03.109] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 03/20/2013] [Accepted: 03/25/2013] [Indexed: 10/26/2022]
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Zhang X, Wei H, Liu Z, Yuan Q, Wei A, Shi D, Yang X, Ruan J. A novel protoapigenone analog RY10-4 induces breast cancer MCF-7 cell death through autophagy via the Akt/mTOR pathway. Toxicol Appl Pharmacol 2013; 270:122-8. [DOI: 10.1016/j.taap.2013.04.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 04/03/2013] [Accepted: 04/12/2013] [Indexed: 12/13/2022]
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Shi D, Li X, Sun L. SAT0171 High oxidation status induced the rearrangement of F-ACTIN cytoskeleton of bone marrow-derived mesenchymal stem cells in patients with systemic lupus erythematosus via downregulation of RHOA signaling pathway. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lu F, Luo T, Sun H, Li N, Liu X, Meng L, Jiang J, Shi D. 136 EFFECTS OF INSULIN-LIKE GROWTH FACTOR I (IGF-1) ON THE DEVELOPMENT AND APOPTOSIS OF PREIMPLANTATION BUFFALO (BUBALUS BUBALIS) EMBRYOS. Reprod Fertil Dev 2013. [DOI: 10.1071/rdv25n1ab136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to explore the effects of insulin-like growth factor-I (IGF-1) on the development and apoptosis of preimplantation buffalo (Bubalus bubalis) embryos derived from IVF or somatic cell nuclear transfer (SCNT) in order to improve the quality of in vitro embryo culture (IVC). Buffalo oocytes collected from ovaries at slaughter were cultured in the maturation medium (TCM-199 + 26.2 mmol L–1 NaHCO3 + 5 mmol L–1 HEPES + 5% FBS) for 22–24 h, and fertilized in vitro, or enucleated and reconstructed for SCNT. Embryos were then cultured in the culture medium (CM: TCM-199 + 3% FBS) supplemented with different concentrations of IGF-1. Blastocyst development was evaluated after 7 days of culture. A total of 1566 oocytes were used in this study. The experimental data were analyzed using two-way ANOVA, P < 0.05 was considered to be statistically significant. The results showed that the cleavage rates of IVF or SCNT embryos cultured with 0, 10, 50, or 100 ng mL–1 IGF-I, were not significantly different (P > 0.05). However, the blastocyst rate of IVF embryos cultured with 50 ng mL–1 IGF-1 was significantly increased compared to the 0 ng mL–1 group (35.1 v. 23.0%; P < 0.05), but not significantly different among the 0, 10, and 100 ng mL–1 groups (23.0 v. 28.2 and 26.5%; P > 0.05). In the same line, more SCNT embryos could develop to the blastocyst stage when cultured in the CM supplemented with 50 ng mL–1 IGF-I by comparison with the 0 ng mL–1 group (32.3 v. 20.2%; P < 0.05), but the blastocyst development decreased with 100 ng mL–1 (32.3 v. 21.4%; P < 0.05). Apoptosis and total cell number (TCN) of IVF/SCNT blastocysts were respectively detected by TUNEL or Hoechst 33342 staining. By comparison with the 0 ng mL–1 group, the TCN of IVF/SCNT blastocysts was significantly increased (IVF: 91.7 ± 6.9 v. 108.7 ± 3.9, SCNT: 76.3 ± 5.6 v. 92.8 ± 3.9; P < 0.05) and the apoptotic index was obviously decreased (IVF: 3.9 ± 0.7 v. 2.5 ± 0.7; 7.2 ± 0.5 v. 2.9 ± 0.5; P < 0.05) when the embryos were cultured in the CM with 50 ng mL–1 IGF-I. The result of RT-qPCR analysis showed that the mRNA expression level of the anti-apoptotic bcl-2 gene was distinctly enhanced, while the mRNA expression level of the pro-apoptotic bax gene was remarkably reduced in IVF/SCNT embryos cultured with 50 ng mL–1 IGF-I by comparison with the 0 ng mL–1 group (P < 0.05). These results demonstrated that supplementing CM with 50 ng mL–1 IGF-1 could improve the developmental competence of buffalo embryos, increase the TCN of blastocysts and decrease their apoptotic index, probably by down-regulating the mRNA level of pro-apoptotic bax gene and up-regulating the mRNA level of anti-apoptotic bcl-2 gene.
This work was funded by the China High Technology Development Program (2011AA100607), China Natural Science Foundation (31072033), and Guangxi Science Foundation (2012GXNSFFA060004).
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Li X, Li M, Huang S, Qiao S, Kang C, Shi D. 165 THE EFFECT OF shRNA TARGETING CLUSTER OF DIFFERENTIATION ANTIGEN 14 ON GENE EXPRESSION OF TNF-α, TLR4, AND IL-6 IN LIPOPOLYSACCHARIDE-INDUCED BUFFALO PERIPHERAL BLOOD MONOCYTE/MACROPHAGE. Reprod Fertil Dev 2013. [DOI: 10.1071/rdv25n1ab165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cluster of differentiation antigen 14 (CD14) plays a crucial role in the inflammatory response to lipopolysaccharide (LPS), which interacts with TLR4 and MD-2 to enable cell activation, leading to inflammation. Several studies have proved that upstream inhibition of bacterial LPS/toll-like receptor 4 (TLR4)/CD14-mediated inflammation pathway is an effective therapeutic approach for attenuating damaging immune activation. In this study, to explore the effect of CD14 down-regulation on TLR4 signal conductive-related genes expression after stimulation by LPS, five CD14 shRNA (319/421/755/970/1041) sequences and a negative control sequence (NC-1864) were synthesised and used to construct lentiviral recombinant plasmid pSicoR-GFP-shRNA. Lentiviral recombinant plasmids of pSicoR-GFP-shRNA and fusion expression vector of pDsRed-N1-buffalo CD14 were co-transfected into HEK293 using liposome. At 72 h after transfection, the expression of exogenous buffalo CD14 mRNA was reduced at different level for all shRNA plasmids, in which shRNA-1041 had the highest interfering efficiency by RT-qPCR and fluorescence-activated cell sorting analysis. Then, buffalo peripheral blood monocyte/macrophage was purified and infected by the CD14 shRNA lentivirus. After 7 days of infection, the cells were stimulated by 1 µg mL–1 LPS for 3 h, then the mRNA expression level of CD14, TLR4, IL-6, and TNF-α transcripts in the cells were detected by the RT-qPCR method. After stimulation by LPS, the expression of endogenous CD14 was significantly reduced by CD14 shRNA-1041, the mRNA expression level of TLR4, IL-6, and TNF-α genes was also significantly down-regulated in comparison with control group (P ≤ 0.01). In conclusion, the selected CD14 shRNA-1041 cannot only inhibit the expression of endogenous CD14 mRNA in buffalo peripheral blood monocyte/macrophage, but also downregulate the mRNA expression of CD14, TLR4, IL-6, and TNF-α. The above results demonstrate that knockdown of endogenous CD14 has obvious coordination effects on the signal conductive function of TLR4 after stimulating by LPS, and shRNA technology will provide a new way to prevent endotoxin-related diseases in livestock.
This work was supported by the National Transgenic Project (2009ZX08007-009B), Guangxi natural science funding (2012GXNSFCB053002), and funding of State Key Laboratory of Subtropical Bioresource Conservation and Utilisation (KSL-CUSAb-2012-02).
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Wei H, Wu G, Shi D, Song S, Zhang X, Lei Y, Ruan J. Total flavan glycoside from Abacopteris penangiana rhizomes and its acid hydrolysate: Characterisation and anti-benign prostatic hyperplasia potential. Food Chem 2012; 134:1959-66. [DOI: 10.1016/j.foodchem.2012.03.128] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Revised: 03/21/2012] [Accepted: 03/28/2012] [Indexed: 10/28/2022]
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Woldie I, Manickam P, Choi M, Shi D, Burks F, Vaishampayan U. An infrequent variant of Stauffer's syndrome. Acta Gastroenterol Belg 2012; 75:379-380. [PMID: 23082719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Chu H, Wang M, Yan F, Zhong D, Shi D, Ma L, Pan X, Qin C, Yin C, Zhang Z. Polymorphisms in the IL-13 and IL-4R genes are associated with the development of renal cell carcinoma. Ann Oncol 2012; 23:2114-2121. [PMID: 22317767 DOI: 10.1093/annonc/mdr607] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Cytokines are the important modulators that bind to their relevant receptors in response to some stimuli to mediate the homeostasis. It has been suggested that the imbalance of immune system of the host might affect the generation of diseases, including cancers. PATIENTS AND METHODS We investigated the association between six functional polymorphisms of IL-4, IL-13, and IL-4R genes and susceptibility to renal cell cancer in a hospital-based study, including 620 renal cell carcinoma (RCC) patients and 623 controls. Logistic regression model was used to assess the genetic effects on the development of RCC. RESULTS Overall, individuals with IL-4R Ile50Val CT/TT genotypes had a 0.34-fold significantly decreased RCC risk (CT/TT versus CC), and the T variant allele was associated with a decreased risk of RCC in a dose-response manner (Ptrend=0.009). In addition, we also observed that IL-13 C-1055T and Arg130Gln polymorphisms could decrease the risk of RCC [TT versus CC/CT odds ratio=0.36, 95% confidence interval (CI)=0.16-0.78; AA versus GG/GA: 0.66, 0.44-0.97, respectively]. Furthermore, a multiplicative interaction association between the combined IL-4R Ile50Val and IL-13 C-1055T genotypes was observed to decrease the risk of RCC (P=0.036). CONCLUSION IL-13 and IL-4R may play an important role in the etiology of RCC.
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Zhang X, Meng H, Sun X, Xu L, Zhang L, Shi D, Feng X, Lu R, Chen Z. Elevation of vitamin D-binding protein levels in the plasma of patients with generalized aggressive periodontitis. J Periodontal Res 2012; 48:74-9. [DOI: 10.1111/j.1600-0765.2012.01505.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Lv X, Guo Y, Shi D. Effects of quinestrol on reproductive hormone expression, secretion, and receptor levels in female Mongolian gerbils (Meriones unguiculatus). Theriogenology 2012; 77:1223-31. [DOI: 10.1016/j.theriogenology.2011.10.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 10/23/2011] [Accepted: 10/23/2011] [Indexed: 10/14/2022]
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Zhu HM, Qin L, Garnero P, Genant HK, Zhang G, Dai K, Yao X, Gu G, Hao Y, Li Z, Zhao Y, Li W, Yang J, Zhao X, Shi D, Fuerst T, Lu Y, Li H, Zhang X, Li C, Zhao J, Wu Q, Zhao SJ. The first multicenter and randomized clinical trial of herbal Fufang for treatment of postmenopausal osteoporosis. Osteoporos Int 2012; 23:1317-27. [PMID: 21505910 DOI: 10.1007/s00198-011-1577-2] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Accepted: 01/22/2011] [Indexed: 10/18/2022]
Abstract
UNLABELLED This multicenter and randomized clinical trial showed that daily oral herbal formula Xian Ling Gu Bao (XLGB) was safe in postmenopausal women over a 1-year treatment. Those patients (n ∼ 50) treated with XLGB at the conventional dose demonstrated a statistically significant increase in dual-energy X-ray absorptiometry (DXA) bone mineral density (BMD) at lumbar spine at 6 months and a numerically increased BMD at 12 months. INTRODUCTION The aim of this study was to examine the safety and efficacy of a herbal formula XLGB in postmenopausal women (ChiCTR-TRC-00000347). METHODS One hundred eighty healthy postmenopausal women (≥60 years old) with BMD T-score ≤ -2.0 (lumbar spine or femoral neck) were recruited from four clinical centers to receive low-dose (conventional dose) XLGB (L-XLGB group, 3 g/day, n = 61) or high-dose XLGB (H-XLGB group, 6 g/day, n = 58) or placebo (CON group, n = 61). Women received daily calcium (500 mg) and vitamin D (200 IU) supplementation. Primary endpoints were lumbar spine BMD and safety; secondary endpoints were femoral neck BMD and bone turnover markers measured at baseline and at 6 and 12 months. RESULTS Of 180 women recruited, 148 completed the study. The compliance in each group was comparable. Prominent adverse events were not observed in either group. In the L-XLGB group at 6 months, lumbar spine BMD by DXA increased significantly from baseline (+2.11% versus CON +0.58%, p < 0.05), but femoral neck BMD did not; at 12 months, BMD in the L-XLGB group decreased from 6-month levels yet remained higher than baseline, but without difference from the CON group. There was no dose-dependent response. Bone turnover marker levels declined during the first 6 months after XLGB treatment. There was no significant difference in the overall incidence of side effects among treatment and control groups. CONCLUSION XLGB over 1-year treatment at the conventional dose demonstrated safe and only a statistically significant increase in BMD at lumbar spine at 6 months in postmenopausal women.
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Zhu XL, Meng HX, Zhang L, Xu L, Chen ZB, Shi D, Feng XH, Zhang X. Association analysis between the -2518MCP-1(A/G) polymorphism and generalized aggressive periodontitis in a Chinese population. J Periodontal Res 2011; 47:286-92. [PMID: 22117820 DOI: 10.1111/j.1600-0765.2011.01426.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE It has been suggested that aggressive periodontitis has a genetic basis. Monocyte chemoattractant protein 1 (MCP-1) plays a critical role in the recruitment of monocytes and the development of periodontitis. The -2518MCP-1(A/G) polymorphism has been implicated as a risk or susceptibility factor for a variety of autoimmune conditions and inflammatory diseases. The intent of this investigation was to study whether the -2518MCP-1(A/G) polymorphism is associated with generalized aggressive periodontitis in the Chinese population. MATERIAL AND METHODS One hundred and twenty-four patients with generalized aggressive periodontitis and 94 healthy subjects were included in this case-control study. Genomic DNA was isolated from a peripheral blood sample obtained from each subject. Gene polymorphisms of -2518MCP-1(A/G) were analyzed by a standard polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. A logistic regression analysis was performed to test the association between the -2518MCP-1(A/G) genotype (alleles) and generalized aggressive periodontitis with adjustment of the major covariates (gender, age and smoking status). RESULTS There was no significant association of the -2518MCP-1(A/G) polymorphism with generalized aggressive periodontitis in the unstratified subjects. However, when patients were stratified by gender, the frequency of the G(+) genotype was significantly lower in female patients with generalized aggressive periodontitis compared with female controls (p = 0.036, adjusted odds ratio = 0.3, 95% CI: 0.1-0.9). In female patients with generalized aggressive periodontitis, the probing pocket depth was larger in subjects with the AA genotype than in subjects with the G(+) genotype (5.07 mm vs. 4.30 mm; Z = -2.470, p = 0.014). CONCLUSION The polymorphisms of -2518MCP-1 may play an important role in determining generalized aggressive periodontitis susceptibility in this cohort of Chinese women.
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Liu J, Dong G, Ma L, Shi D, Wang Y. Immune injury combined with high fat diet led to the formation of atherosclerosis of the analysis of relevant factors on rabbit. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Cheng JP, Ma R, Shi D, Liu F, Zhang XB. Rapid growth of magnetite nanoplates by ultrasonic irradiation at low temperature. ULTRASONICS SONOCHEMISTRY 2011; 18:1038-1042. [PMID: 21256793 DOI: 10.1016/j.ultsonch.2010.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 12/02/2010] [Accepted: 12/23/2010] [Indexed: 05/30/2023]
Abstract
Two-dimensional plate-like Fe(3)O(4) nanocrystals were synthesized by a facile method using ultrasonic irradiation in aqueous solution at low temperature without protection from oxygen. The crystals were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and Fourier Transform infrared spectroscopy. The products subjected to ultrasound showed a two-dimensional morphology. The results obtained indicate that the morphologies of the magnetite crystals depend more on the ultrasonic irradiation than on the growth temperature. The thickness and width of the crystals increased with increasing temperature of the reaction medium. In addition, the magnetic hysteresis loop of the magnetite nanoplates was obtained at room temperature.
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Lu F, Jiang J, Li N, Zhang S, Sun H, Luo C, Wei Y, Shi D. Effects of recipient oocyte age and interval from fusion to activation on development of buffalo (Bubalus bubalis) nuclear transfer embryos derived from fetal fibroblasts. Theriogenology 2011; 76:967-74. [PMID: 21752448 DOI: 10.1016/j.theriogenology.2011.04.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 04/26/2011] [Accepted: 04/26/2011] [Indexed: 10/18/2022]
Abstract
The objective was to investigate the effect of recipient oocyte age and the interval from activation to fusion on developmental competence of buffalo nuclear transfer (NT) embryos. Buffalo oocytes matured in vitro for 22 h were enucleated by micromanipulation under the spindle view system, and a fetal fibroblast (pretreated with 0.1 μg/mL aphidicolin for 24 h, followed by culture for 48 h in 0.5% fetal bovine serum) was introduced into the enucleated oocyte, followed by electrofusion. Both oocytes and NT embryos were activated by exposure to 5 μM ionomycin for 5 min, followed by culture in 2 mM 6-dimethyl-aminopurine for 3 h. When oocytes matured in vitro for 28, 29, 30, 31, or 32 h were activated, more oocytes matured in vitro for 30 h developed into blastocysts in comparison with oocytes matured in vitro for 32 h (31.3 vs 19.9%, P < 0.05). When electrofusion was induced 27 h after the onset of oocyte maturation, the cleavage rate (78.0%) was higher than that of electrofusion induced at 28 h (67.2%, P < 0.05), and the blastocyst yield (18.1%) was higher (P < 0.05) than that of electrofusion induced at 25 or 26 h (7.4 and 8.5%, respectively). A higher proportion of NT embryos activated at 3 h after electrofusion developed to the blastocyst stage (18.6%) in comparison with NT embryos activated at 1 h (6.0%), 2 h (8.3%), or 4 h (10.6%) after fusion (P < 0.05). No recipient was pregnant 60 d after transfer of blastocysts developed from NT embryos activated at 1 h (0/8), 2 h (0/10), or 4 h (0/9) after fusion. However, 3 of 16 recipients were pregnant following transfer of blastocysts developed from the NT embryos activated at 3 h after fusion, and two of these recipients maintained pregnancy to term. We concluded that the developmental potential of buffalo NT embryos was related to recipient oocyte age and the interval from fusion to activation.
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Wang H, Wu Z, Chen Y, Yang C, Shi D. Effects of salt and alkali stresses on growth and ion balance in rice (Oryza sativa L.). PLANT, SOIL AND ENVIRONMENT 2011; 57:286-294. [PMID: 0 DOI: 10.17221/36/2011-pse] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Cheng JP, Ma R, Chen X, Shi D, Liu F, Zhang XB. Effect of ferric ions on the morphology and size of magnetite nanocrystals synthesized by ultrasonic irradiation. CRYSTAL RESEARCH AND TECHNOLOGY 2011. [DOI: 10.1002/crat.201100144] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sun X, Meng H, Shi D, Xu L, Zhang L, Chen Z, Feng X, Lu R. Analysis of plasma calprotectin and polymorphisms of S100A8 in patients with aggressive periodontitis. J Periodontal Res 2011; 46:354-60. [PMID: 21463326 DOI: 10.1111/j.1600-0765.2011.01350.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND OBJECTIVE Calprotectin is an important proinflammatory mediator in various inflammatory diseases and is composed of two subunits (S100A8 and S100A9). However, the level of calprotectin in plasma of patients with aggressive periodontitis and its relationship with gene polymorphisms of S100A8 are unclear. MATERIAL AND METHODS The plasma concentrations of calprotectin were measured, using an enzyme immunoassay, in 139 patients with aggressive periodontitis and in 88 periodontally healthy control subjects. These patients were genotyped for the rs3795391 and rs3806232 polymorphisms of S100A8. RESULTS The plasma concentration of calprotectin in patients with aggressive periodontitis was significantly higher than in controls (2.17 mg/L vs. 1.72 mg/L, respectively, p = 0.001). The percentage of the AA genotype of S100A8 rs3795391 was significantly higher in patients than in controls (82% vs. 69.3%, respectively, p = 0.027), while the frequency of the allele G was decreased among patients compared with controls (9.6% vs. 16.1%, respectively, p = 0.036), which was especially apparent in men (rs3795391 genotype, p = 0.005; rs3795391 allele, p = 0.015). The mean probing depth in patients carrying the AA genotype was significantly higher than that of patients carrying the GA + GG genotype of two polymorphisms of S100A8 (rs3795391, p = 0.035; rs3806232, p = 0.040), whereas the levels of calprotectin between different genotypes were not significantly different (rs3795391, p = 0.11; rs3806232, p = 0.15). CONCLUSION These findings indicate that aggressive periodontitis is associated with elevated levels of plasma calprotectin and that gene polymorphisms of S100A8 may influence the susceptibility and severity of aggressive periodontitis.
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Shi D, Wang XC, Yao ZW, Liu F, Zhang XB, Cheng JP. Wettability of porous two-dimensional ZnO nanocrystal films. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lu F, Zhang Z, Zhang S, Li N, Jiang J, Shi D. 134 EFFECTS OF VITAMIN E AND VITAMIN C ON THE DEVELOPMENTAL COMPETENCE OF BUFFALO (BUBALUS BUBALIS) EMBRYOS DERIVED FROM PARTHENOGENETIC ACTIVATION, IN VITRO FERTILIZATION, AND NUCLEAR TRANSFER. Reprod Fertil Dev 2011. [DOI: 10.1071/rdv23n1ab134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The purpose of this study was to explore the effects of vitamin E (VE) and vitamin C (VC) on the in vitro development of embryos derived from parthenogenetic activation (PA), in vitro fertilization (IVF), and somatic cell nuclear transfer (NT) in buffalo (Bubalus bubalis). Buffalo oocytes obtained from ovaries at slaughter were matured in vitro for 22 to 24 h. After maturation, oocytes were separated to 3 groups: one group of oocytes was fertilized in vitro with buffalo sperm; one group of oocytes was parthenogenetically activated by exposing them to 5 μM ionomycin for 5 min and then cultured in 2 mM 6-DMAP for 3 h; the other group of oocytes was enucleated, and fibroblasts in DMEM + 10% FBS for 4 to 5 days were transferred into enucleated oocytes by electronic fusion (100 v mm–1, 15 μs, and 3 pulses). After fusion, the activation of reconstructed embryos was induced by exposure to 5 μM ionomycin for 5 min and then cultured in 2 mM 6-DMAP for 3 h. The embryos of PA, IVF, and NT were respectively cultured in the culture medium (CM) containing different concentrations of VE, VC, or VE + VC for 7 to 9 days to evaluate embryonic development. As a result, when the embryos were cultured in the CM with different concentrations of VE (0, 50, 100, 150, and 200 μM), the blastocyst development rate of the embryos derived from PA, IVF, and NT gradually rose with increasing concentrations of VE and reached the highest amount [PA: 32.9% (81/246); IVF: 21.4% (45/210); and NT: 21.1% (47/223)] in the group containing 150 μM of VE; it was significantly higher than that of other groups (P < 0.05). When the different concentrations of VC (0, 50, 100, 150, and 200 μM) were added to the CM, the blastocyst development rate of the embryos derived from PA, IVF, and NT also enhanced according to the increasing concentration of VC, and more embryos developed to blastocysts in the group containing 150 μM of VC [PA: 31.2% (72/231); IVF: 20.2% (43/213); NT: 19.8% (48/243)] than in the other groups (P < 0.05). Compared with the control group (0 μM), the blastocyst rate of PA and IVF, as well as NT embryos, cultured in the CM with 150 μM VE + 150 μM VC groups was significantly higher (P < 0.05), but there were no significant differences in the percentage of blastocysts among groups of the 150 μM VE, 150 μM VC, and 150 μM VE + 150 μM VC (P > 0.05). These results indicated that adding VE (150 μM), VC (150 μM), or VE (150 μM) + VC (150 μM) in the CM could efficiently enhance the developmental competence of buffalo embryos during in vitro culture.
This work was funded by China High Technology Development Program (2007AA100505), Guangxi Science Foundation (0718005-3A), Fok Ying Tung Education Foundation (111034).
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Shi D, Zheng Q, Chen D, Zhu L, Qin A, Fan J, Liao J, Xu Z, Lin Z, Norman P, Xu J, Nakamura T, Dai K, Zheng M, Jiang Q. Association of single-nucleotide polymorphisms in HLA class II/III region with knee osteoarthritis. Osteoarthritis Cartilage 2010; 18:1454-7. [PMID: 20691797 DOI: 10.1016/j.joca.2010.07.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 07/18/2010] [Accepted: 07/20/2010] [Indexed: 02/02/2023]
Abstract
OBJECTIVE A genome-wide association study and a replication using Japanese, Spanish and Greek Caucasian populations have recently indicated two single-nucleotide polymorphisms (SNPs) (rs7775228 and rs10947262) associated with knee Osteoarthritis (OA) susceptibility. We have further evaluated the association in knee OA subjects from Han Chinese and Australian Caucasian origin. METHODS Two independent case-control association studies were performed using Han Chinese and Australian Caucasian populations. The two SNPs were genotyped in patients who had primary symptomatic knee OA with radiographic confirmation and/or received total knee replacement surgery as well as in matched controls. They were subjected to statistic analyses. RESULTS A total of 991 OA patients and 1536 controls were genotyped. No significant difference was detected in genotype or allele frequencies of the two SNPs between knee OA and control groups in the two populations (all P>0.05). The association was also negative even after stratification by sex, body mass index (BMI) and Kellgren/Lawrence scores. The significant heterogeneity was detected between Chinese and Japanese (both P<0.05). In the Caucasian samples, no significant heterogeneity was detected (both P>0.05). The result of meta-analysis showed significant association between knee OA and rs10947262 in total subjects [summary OR=1.26, 95%confidence intervals (CI)=1.07-1.27, P=3 × 10(-8)] and in Caucasian samples (summary OR=1.28, 95%CI=1.04-1.57, P=0.02). CONCLUSION We demonstrated no association between the two SNPs in human leukocyte antigen (HLA) class II/III region and knee OA in Han Chinese population. A significant association was detected between SNP rs10947262 and knee OA in Caucasian subjects. Further replication studies are required to identify the impact of controversial association.
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