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Ma DH, Xu QY, Liu Y, Zhai QQ, Guo MH. Association between interleukin-10 gene polymorphisms and susceptibility to diabetic nephropathy in a Chinese population. Genet Mol Res 2016; 15:gmr7570. [PMID: 27173343 DOI: 10.4238/gmr.15027570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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 this study, we investigated the association between the interleukin (IL)-10 -592C/A, -819C/T, and -1082G/A genetic variations and susceptibility to diabetic nephropathy in a Chinese population. The IL-10 -592C/A, -819C/T, and -1082G/A polymorphisms were genotyped in diabetic nephropathy patient and control samples by polymerase chain reaction-restriction fragment length polymorphism. The results were then statistically analyzed using SPSS 17.0. The results of the χ(2) test revealed a significant difference in the frequencies of the GG, GA, and AA genotypes of IL-10 -1082G/A between patients with diabetic nephropathy and control subjects (χ(2) = 10.03, P = 0.007). Unconditional logistic regression analysis revealed that the AA genotype of IL-10 -1082G/A significantly increased the susceptibility to diabetic nephropathy [adjusted odds ratio (OR) = 2.52, 95% confidence interval (CI) = 1.31-4.82] compared to the wild-type genotype. Moreover, the A allele of this polymorphism was associated with an increased risk of diabetic nephropathy compared to the G allele (adjusted OR = 1.51, 95%CI = 1.15-1.99). However, the IL-10 -819T/C and -592A/C genetic polymorphisms did not increase the risk of diabetic nephropathy. In conclusion, the IL-10 -1082G/A polymorphism was found to be correlated with the development of diabetic nephropathy.
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Affiliation(s)
- D H Ma
- Department of Nephrology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
| | - Q Y Xu
- Department of Nephrology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
| | - Y Liu
- Department of Nephrology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
| | - Q Q Zhai
- Department of Endocrinology & Metabolism, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
| | - M H Guo
- Department of Nephrology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
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Ma DH, Chen JK, Kim WS, Hao YX, Wu HC, Tsai RJ, Hwang DG, Zhang F. Expression of matrix metalloproteinases 2 and 9 and tissue inhibitors of metalloproteinase 1 and 2 in inflammation-induced corneal neovascularization. Ophthalmic Res 2001; 33:353-62. [PMID: 11721189 DOI: 10.1159/000055693] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
PURPOSE Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinase (TIMPs) have been linked to the angiogenic process in general. In order to understand the potential roles of MMP-2, MMP-9 and TIMPs in the corneal neovascularization process, we examined the expression and activities of MMP-2, MMP-9 and TIMPs during the course of cauterization-induced corneal neovascularization in a rat model. METHODS Neovascularization of rat corneas was induced by silver nitrate cauterization. The expression of MMP-2, MMP-9, TIMP-1 and TIMP-2 was examined by immunohistochemistry and RT-PCR. The protein activities of MMPs and TIMPs were compared in pre- and postcauterization corneas by gelatin zymography and reverse zymography, respectively. RESULTS MMP-2, TIMP-1 and TIMP-2 immunoreactivities were expressed in normal corneas, predominantly in the corneal epithelium. After injury, immunoreactivities of both MMPs and TIMPs were increased, notably in the healing corneal epithelium, infiltrating inflammatory cells, stromal fibroblasts and ingrowing vascular endothelial cells. The increase in gross MMP-2 enzymatic activity paralleled the maximal vascular ingrowth on day 4, while the gross MMP-9 enzymatic activity rose immediately on day 1, then decreased steadily, which paralleled the magnitude of inflammatory cell infiltration. The immunoreactivity of MMPs/TIMPs decreased significantly 2 weeks after cauterization. On day 35, MMP-2, TIMP-1 and TIMP-2 staining was seen only in corneal epithelium and vascular endothelial cells. Both the RT-PCR and reverse zymography results revealed a more constant expression of TIMP-2, while the TIMP-1 expression appeared to be more inducible. CONCLUSION MMPs as well as TIMPs were upregulated in cauterization-induced corneal neovascularization, suggesting that both may participate in extracellular matrix remodeling in the corneal wound healing, inflammation and neovascularization processes.
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Affiliation(s)
- D H Ma
- Ocular Cell and Gene Therapy Laboratory, Department of Ophthalmology, University of California, San Francisco, Calif., 94143-0730, USA
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Affiliation(s)
- Y C Chen
- Department of Ophthalmology, Chang-Gung Memorial Hospital, Taoyuan, Taiwan
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Ma DH, See LC, Liau SB, Tsai RJ. Amniotic membrane graft for primary pterygium: comparison with conjunctival autograft and topical mitomycin C treatment. Br J Ophthalmol 2000; 84:973-8. [PMID: 10966947 PMCID: PMC1723628 DOI: 10.1136/bjo.84.9.973] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM To study the efficacy and safety of amniotic membrane graft as an adjunctive therapy after removal of primary pterygium, and to compare the clinical outcome with conjunctival autograft and topical mitomycin C. METHODS 80 eyes of 71 patients with primary pterygia were treated with excision followed by amniotic membrane graft. The result was compared retrospectively with 56 eyes of 50 patients receiving conjunctival autograft, and 54 eyes of 46 patients receiving topical mitomycin C. Patients were followed for at least 6 months, and the averaged follow up periods for the three groups were 13.8, 22.8, and 18.4 months, respectively. RESULTS There were three recurrences (3.8%) in the amniotic membrane graft group, three recurrences (5.4%) in the conjunctival autograft group, and two recurrences (3.7%) in the topical mitomycin C group. There was no significant difference in recurrence rate among the three groups (p = 0.879). No major complications occurred in the amniotic membrane graft group or the conjunctival autograft group. One case of infectious scleritis due to scleral ischaemia occurred in the topical mitomycin C group. CONCLUSION This study showed that amniotic membrane graft was as effective as conjunctival autograft and mitomycin C in preventing pterygium recurrence, and can be considered as a preferred grafting procedure for primary pterygium.
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Affiliation(s)
- D H Ma
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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Abstract
PURPOSE To identify the potential antiangiogenic and antiinflammatory proteins expressed in human amniotic membrane tissue. METHODS Human amniotic epithelial and mesenchymal cells were isolated from human amniotic membranes by sequential trypsin and collagenase digestion. Total RNAs were harvested from freshly obtained human amniotic epithelial and mesenchymal cells. Antiangiogenic and antiinflammatory proteins were detected by the reverse transcriptase-polymerase chain reaction (RT-PCR) technique and further confirmed by DNA sequencing of PCR-amplified transcripts. The distribution of tissue inhibitors of metalloproteinase (TIMPs) were studied further by immunohistochemistry performed on paraffin-embedded amniotic membrane tissue. RESULTS RT-PCR results showed that both human amniotic epithelial and mesenchymal cells express interleukin-1 receptor antagonist, all four TIMPs, collagen XVIII, and interleukin-10. Thrombospondin-1 was expressed in all of the epithelial cell specimens and in one out of five mesenchymal cell specimens. Furthermore, immunohistochemistry studies performed on freshly prepared amniotic membrane confirmed that all members of the TIMP family were present in epithelial and mesenchymal cells as well as in the compact layer of the amniotic stroma. In cryopreserved amniotic membranes, positive staining was seen in residual amniotic cells and stroma. CONCLUSIONS Human amniotic membrane epithelial and mesenchymal cells express various antiangiogenic and antiinflammatory proteins. Some of those proteins also were found in amniotic membrane stroma. These findings may explain in part the antiangiogenic and antiinflammatory effects of amniotic membrane transplantation.
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Affiliation(s)
- Y Hao
- Department of Ophthalmology, University of California, San Francisco 94143-0730, USA
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Ma DH, Tsai RJ, Chu WK, Kao CH, Chen JK. Inhibition of vascular endothelial cell morphogenesis in cultures by limbal epithelial cells. Invest Ophthalmol Vis Sci 1999; 40:1822-8. [PMID: 10393055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
PURPOSE To study the in vitro angiogenic activity of human conjunctival and limbal epithelial cells and conjunctival, limbal, and corneal fibroblasts in a three-cell-type coculture model. METHODS Human umbilical vein endothelial cells (EC) were cocultured with epithelial cells, fibroblasts, or epithelial cells and fibroblasts to test their effect on EC morphogenesis. Neutralizing antibodies to some known angiogenic factors were added to the culture to see whether the EC morphogenesis may be blocked by a particular antibody. RESULTS Conjunctival and limbal epithelial cells exhibited very little or no stimulatory effect on EC tube formation when examined in an EC- epithelial cell coculture system. In contrast, conjunctival, limbal, and corneal fibroblasts all promoted EC morphogenesis when examined under the same culture conditions. Fibroblast-induced EC morphogenesis was inhibited by addition of anti-vascular endothelial growth factor (VEGF) and/or anti-basic fibroblast growth factor (bFGF) antibodies to the culture medium. In the three-cell-type coculture system consisting of ECs, fibroblasts, and epithelial cells, limbal epithelial cells (but not conjunctival epithelial cells) exhibited a strong inhibitory effect on fibroblast-induced EC tube formation. CONCLUSIONS The proangiogenic activity of ocular surface fibroblasts is probably mediated through a paracrine mechanism by VEGF and bFGF. Limbal epithelial cells, but not conjunctival epithelial cells, inhibit fibroblast-stimulated angiogenesis.
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Affiliation(s)
- D H Ma
- Department of Ophthalmology, Change Gung Memorial Hospital, Tao-Yuan, Taiwan, Republic of China
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Zou LP, Ma DH, Wei L, van der Meide PH, Mix E, Zhu J. IFN-beta suppresses experimental autoimmune neuritis in Lewis rats by inhibiting the migration of inflammatory cells into peripheral nervous tissue. J Neurosci Res 1999; 56:123-30. [PMID: 10494101 DOI: 10.1002/(sici)1097-4547(19990415)56:2<123::aid-jnr2>3.0.co;2-g] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The putative prophylactic and therapeutic effect of interferon-beta (IFN-beta) on autoimmune inflammation of the peripheral nervous system was evaluated in experimental autoimmune neuritis (EAN), a well-known animal model of the human Guillain-Barré syndrome (GBS). We report that treatment of rats with 300,000 U of recombinant rat IFN-beta (rrIFN-beta) given every other day starting at the day of immunization prevented clinical signs of EAN. When treatment was started at the onset of disease development, the cytokine clearly ameliorated EAN. Both B- and T-cell responses towards peripheral myelin were suppressed by the IFN-beta, and immunohistochemical analyses revealed a strong decrease in the numbers of infiltrating CD4(+) T cells, macrophages, and other inflammatory cells as well as a significant reduction in MHC class II antigen expression and monocyte chemotactic protein-1 (MCP-1) production, which induces chemotaxis and chemokinesis of leukocytes from blood. It is concluded that the observed suppression of EAN by rrIFN-beta is associated with a decrease in the migration of inflammatory cells into peripheral nervous tissue.
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Affiliation(s)
- L P Zou
- Division of Geriatric Medicine, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden
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Zou LP, Ma DH, Levi M, Wahren B, Wei L, Mix E, van der Meide PH, Link H, Zhu J. Antigen-specific immunosuppression: nasal tolerance to P0 protein peptides for the prevention and treatment of experimental autoimmune neuritis in Lewis rats. J Neuroimmunol 1999; 94:109-21. [PMID: 10376943 DOI: 10.1016/s0165-5728(98)00232-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Experimental autoimmune neuritis (EAN) is an autoimmune inflammatory demyelinating disease of the peripheral nervous system (PNS), and represents an animal model of the human Guillain-Barré syndrome (GBS). In this study, we report that nasal administration of the neuritogenic peptide 180-199 and of the cryptic peptide 56-71 of the rat neuritogenic P0 protein of peripheral nerve myelin prevents EAN and attenuates ongoing EAN. Both peptides effectively decreased the severity and shortened clinical EAN. Both a prophylactic and a therapeutic approach proved to be beneficial. These effects were associated with T and B cells hyporesponsiveness to the peptide antigens, reflected by downregulated Th1 cell responses (interferon-gamma secretion) and macrophage function, whereas Th2 cell responses (IL-4 secretion) and transforming growth factor-beta mRNA expression were upregulated.
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MESH Headings
- Administration, Intranasal
- Animals
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cattle
- Disease Models, Animal
- Epitopes
- Gene Expression/immunology
- Histocompatibility Antigens Class II/metabolism
- Immunization
- Immunoglobulin G/immunology
- Immunosuppression Therapy
- Interferon-gamma/metabolism
- Interleukin-4/metabolism
- Lymph Nodes/immunology
- Male
- Myelin P0 Protein/immunology
- Myelin P0 Protein/pharmacology
- Neuritis, Autoimmune, Experimental/drug therapy
- Neuritis, Autoimmune, Experimental/immunology
- Neuritis, Autoimmune, Experimental/prevention & control
- Peptide Fragments/pharmacology
- Polyradiculoneuropathy/drug therapy
- Polyradiculoneuropathy/immunology
- Polyradiculoneuropathy/prevention & control
- RNA, Messenger/metabolism
- Rats
- Rats, Inbred Lew
- Sciatic Nerve/chemistry
- Sciatic Nerve/immunology
- Transforming Growth Factor beta/genetics
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Affiliation(s)
- L P Zou
- Division of Neurology, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden
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Bai JZ, Bardon O, Becker-Szendy RA, Burnett TH, Campbell JS, Chen SJ, Chen SM, Chen YQ, Cheng ZD, Coller JA, Cowan RF, Cui HC, Cui XZ, Ding HL, Du ZZ, Dunwoodie W, Fang C, Fero MJ, Gao ML, Gao SQ, Gao WX, Gao YN, Gu JH, Gu SD, Gu WX, Guo YN, Guo YY, Han Y, Hatanaka M, He J, Hitlin DG, Hu GY, Hu T, Huang DQ, Huang YZ, Izen JM, Jia QP, Jiang CH, Jiang ZJ, Johnson AS, Jones LA, Kelsey MH, Lai YF, Lang PF, Lankford A, Li F, Li J, Li PQ, Li QM, Li RB, Li W, Li WD, Li WG, Li YS, Lin SZ, Liu HM, Liu Q, Liu RG, Liu Y, Lowery B, Lu JG, Ma DH, Ma EC, Ma JM. Measurement of the mass of the tau lepton. Phys Rev Lett 1992; 69:3021-3024. [PMID: 10046705 DOI: 10.1103/physrevlett.69.3021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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