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Wu Y, Dong G, Xiao W, Xiao E, Miao F, Syverson A, Missaghian N, Vafa R, Cabrera-Ortega AA, Rossa C, Graves DT. Effect of Aging on Periodontal Inflammation, Microbial Colonization, and Disease Susceptibility. J Dent Res 2016; 95:460-6. [PMID: 26762510 PMCID: PMC4802783 DOI: 10.1177/0022034515625962] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Periodontitis is a chronic inflammatory disease induced by a biofilm that forms on the tooth surface. Increased periodontal disease is associated with aging. We investigated the effect of aging on challenge by oral pathogens, examining the host response, colonization, and osteoclast numbers in aged versus young mice. We also compared the results with mice with lineage-specific deletion of the transcription factor FOXO1, which reduces dendritic cell (DC) function. Periodontitis was induced by oral inoculation of Porphyromonas gingivalis and Fusobacterium nucleatum in young (4 to 5 mo) and aged (14 to 15 mo) mice. Aged mice as well as mice with reduced DC function had decreased numbers of DCs in lymph nodes, indicative of a diminished host response. In vitro studies suggest that reduced DC numbers in lymph nodes of aged mice may involve the effect of advanced glycation end products on DC migration. Surprisingly, aged mice but not mice with genetically altered DC function had greater production of antibody to P. gingivalis, greater IL-12 expression, and more plasma cells in lymph nodes following oral inoculation as compared with young mice. The greater adaptive immune response in aged versus young mice was linked to enhanced levels of P. gingivalis and reduced bacterial diversity. Thus, reduced bacterial diversity in aged mice may contribute to increased P. gingivalis colonization following inoculation and increased periodontal disease susceptibility, reflected by higher TNF levels and osteoclast numbers in the periodontium of aged versus young mice.
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Vidilaseris K, Morriswood B, Dong G. Integrative approaches to investigate the structure and assembly of Trypanosoma brucei BILBO1, a multidomain cytoskeletal protein at the flagellar pocket collar. Cilia 2015. [PMCID: PMC4518676 DOI: 10.1186/2046-2530-4-s1-p25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Feng CC, Dong G, Hang Z, Jiang H, Ding Q, Zhang Y, Wu Z. Ho:YAG Laser Endopyelotomy is effective for primary and secondary UPJOs. MINERVA UROL NEFROL 2015:R19Y9999N00A150047. [PMID: 26473370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PURPOSE To assess efficacy of laser endopyelotomy in both primary and secondary ureteropelvic junction obstructions (UPJOs) PATIENTS AND METHODS: Primary category consisted of 10 patients of congenital UPJOs. Secondary category was comprised of UPJOs in 12 status post pyeloplasty, 10 status post lithotomy, 5 status post shock wave lithotripsy, and 10 status post ureteroscopic lithotripsy. Ho:YAG laser endopyelotomy was performed in all subjects. Exclusion criteria included obstructions longer than 2 cm, ipsilateral upper urinary calculi and crossing vasculature. RESULTS Mean operation time was 44 min. Average inpatient duration was 1.87 days. No major complication occurred. Follow-ups were at least 12 months. Success rate for single endopyelotomy was 82.5%, leaving 7 patients for a secondary endopyelotomy. Secondary UPJO due to failed pyeloplasty had a predilection of restenosis after endopyelotomy (P = 0.0005) compared to other aetiologies. CONCLUSIONS Ho:YAG laser endopyelotomy is a safe and effective approach effective in both primary and secondary UPJO treatments.
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Fan H, Liu F, Dong G, Ren D, Xu Y, Dou J, Wang T, Sun L, Hou Y. Activation-induced necroptosis contributes to B-cell lymphopenia in active systemic lupus erythematosus. Cell Death Dis 2014; 5:e1416. [PMID: 25210799 PMCID: PMC4225223 DOI: 10.1038/cddis.2014.375] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 07/30/2014] [Accepted: 08/01/2014] [Indexed: 02/07/2023]
Abstract
B-cell abnormality including excessive activation and lymphopenia is a central feature of systemic lupus erythematosus (SLE). Although activation threshold, auto-reaction and death of B cells can be affected by intrinsical and/or external signaling, the underlying mechanisms are unclear. Herein, we demonstrate that co-activation of Toll-like receptor 7 (TLR7) and B-cell receptor (BCR) pathways is a core event for the survival/dead states of B cells in SLE. We found that the mortalities of CD19(+)CD27(-) and CD19(+)IgM(+) B-cell subsets were increased in the peripheral blood mononuclear cells (PBMCs) of SLE patients. The gene microarray analysis of CD19(+) B cells from active SLE patients showed that the differentially expressed genes were closely correlated to TLR7, BCR, apoptosis, necroptosis and immune pathways. We also found that co-activation of TLR7 and BCR could trigger normal B cells to take on SLE-like B-cell characters including the elevated viability, activation and proliferation in the first 3 days and necroptosis in the later days. Moreover, the necroptotic B cells exhibited mitochondrial dysfunction and hypoxia, along with the elevated expression of necroptosis-related genes, consistent with that in both SLE B-cell microarray and real-time PCR verification. Expectedly, pretreatment with the receptor-interacting protein kinase 1 (RIPK1) inhibitor Necrostatin-1, and not the apoptosis inhibitor zVAD, suppressed B-cell death. Importantly, B cells from additional SLE patients also significantly displayed high expression levels of necroptosis-related genes compared with those from healthy donors. These data indicate that co-activation of TLR7 and BCR pathways can promote B cells to hyperactivation and ultimately necroptosis. Our finding provides a new explanation on B-cell lymphopenia in active SLE patients. These data suggest that extrinsic factors may increase the intrinsical abnormality of B cells in SLE patients.
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Berthelot L, Robert T, Tabary T, Vuiblet V, Drame M, Toupance O, Rieu P, Monteiro RC, Toure F, Ferrario S, Cantaluppi V, De Lena M, Dellepiane S, Beltramo S, Rossetti M, Manzione AM, Messina M, Gai M, Dolla C, Biancone L, Camussi G, Pontrelli P, Oranger AR, Accetturo M, Rascio F, Gigante M, Castellano G, Schena A, Fiorentino M, Zito A, Zaza G, Stallone G, Gesualdo L, Grandaliano G, Pattonieri EF, Gregorini M, Corradetti V, Rocca C, Milanesi S, Peloso A, Ferrario J, Cannone M, Bosio F, Maggi N, Avanzini MA, Minutillo P, Paulli M, Maestri M, Rampino T, Dal Canton A, Wu KST, Coxall O, Luque Y, Candon S, Rabant M, Noel LH, Thervet E, Chatenoud L, Snanoudj R, Anglicheau D, Legendre C, Zuber J, Hruba P, Brabcova I, Krepsova E, Slatinska J, Sekerkova A, Striz I, Zachoval R, Viklicky O, Scholbach TM, Wang HK, Loong CC, Yang AH, Wu TH, Hruba P, Brabcova I, Krepsova E, Slatinska J, Sekerkova A, Striz I, Zachoval R, Viklicky O, Guberina H, Rebmann V, Dziallas P, Dolff S, Wohlschlaeger J, Heinemann FM, Witzke O, Zoet YM, Claas FHJ, Horn PA, Kribben A, Doxiadis IIN, Prasad N, Yadav B, Agarwal V, Jaiswal A, Rai M, Hope CM, Coates PT, Heeger PS, Carroll R, Zaza G, Masola V, Secchi MF, Onisto M, Gambaro G, Lupo A, Matsuyama M, Kobayashi T, Yoneda Y, Chargui J, Touraine JL, Yoshimura R, Vizza D, Perri A, Lupinacci S, Toteda G, Lofaro D, Leone F, Gigliotti P, La Russa A, Papalia T, Bonofilgio R, Sentis Fuster A, Kers J, Yapici U, Claessen N, Bemelman FJ, Ten Berge IJM, Florquin S, Glotz D, Rostaing L, Squifflet JP, Merville P, Belmokhtar C, Le Ny G, Lebranchu Y, Papazova DA, Friederich-Persson M, Koeners MP, Joles JA, Verhaar MC, Trivedi HL, Vanikar AV, Dave SD, Suarez Alvarez B, Garcia Melendreras S, Carvajal Palao R, Diaz Corte C, Ruiz Ortega M, Lopez-Larrea C, Yadav AK, Bansal D, Kumar V, Kumar V, Minz M, Jha V, Kaminska D, Koscielska-Kasprzak K, Chudoba P, Mazanowska O, Banasik M, Zabinska M, Boratynska M, Lepiesza A, Korta K, Klinger M, Csohany R, Prokai A, Pap D, Balicza-Himer N, Vannay A, Fekete A, Kis-Petik K, Peti-Peterdi J, Szabo A, Masajtis-Zagajewska A, Muras K, Niewodniczy M, Nowicki M, Pascual J, Srinivas TR, Chadban S, Citterio F, Henry M, Legendre C, Oppenheimer F, Lee PC, Tedesco-Silva H, Zeier M, Watarai Y, Dong G, Hexham M, Bernhardt P, Vincenti F, Rocchetti MT, Pontrelli P, Rascio F, Fiorentino M, Zito A, Stallone G, Gesualdo L, Grandaliano G, Su owicz J, Wojas-Pelc A, Ignacak E, Janda K, Krzanowski M, Su owicz W, Dellepiane S, Cantaluppi V, Mitsuhashi M, Murakami T, Benso A, Biancone L, Camussi G, Scholbach TM, Wang HK, Loong CC, Wu TH, Leuning D, Reinders M, Lievers E, Duijs J, Van Zonneveld AJ, Van Kooten C, Engelse M, Rabelink T, Assounga A, Omarjee S, Ngema Z, Ersoy A, Gultepe A, Isiktas Sayilar E, Akalin H, Coskun F, Oner Torlak M, Ayar Y, Riegersperger M, Plischke M, Steinhauser C, Jallitsch-Halper A, Sengoelge G, Winkelmayer WC, Sunder-Plassmann G, Foedinger M, Kaziuk M, Kuz'Niewski M, Ignacak E, B Tkowska- Prokop A, Pa Ka K, Dumnicka P, Kolber W, Su Owicz W. TRANSPLANTATION BASIC SCIENCE, ALLOGENIC AND XENOGENIC TOLERANCE. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Saliba F, De Simone P, Nevens F, De Carlis L, Metselaar HJ, Beckebaum S, Jonas S, Sudan D, Fischer L, Duvoux C, Chavin KD, Koneru B, Huang MA, Chapman WC, Foltys D, Dong G, Lopez PM, Fung J, Junge G. Renal function at two years in liver transplant patients receiving everolimus: results of a randomized, multicenter study. Am J Transplant 2013; 13:1734-45. [PMID: 23714399 DOI: 10.1111/ajt.12280] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 02/06/2013] [Accepted: 02/11/2013] [Indexed: 01/25/2023]
Abstract
In a 24-month prospective, randomized, multicenter, open-label study, de novo liver transplant patients were randomized at 30 days to everolimus (EVR) + Reduced tacrolimus (TAC; n = 245), TAC Control (n = 243) or TAC Elimination (n = 231). Randomization to TAC Elimination was stopped prematurely due to a significantly higher rate of treated biopsy-proven acute rejection (tBPAR). The incidence of the primary efficacy endpoint, composite efficacy failure rate of tBPAR, graft loss or death postrandomization was similar with EVR + Reduced TAC (10.3%) or TAC Control (12.5%) at month 24 (difference -2.2%, 97.5% confidence interval [CI] -8.8%, 4.4%). BPAR was less frequent in the EVR + Reduced TAC group (6.1% vs. 13.3% in TAC Control, p = 0.010). Adjusted change in estimated glomerular filtration rate (eGFR) from randomization to month 24 was superior with EVR + Reduced TAC versus TAC Control: difference 6.7 mL/min/1.73 m(2) (97.5% CI 1.9, 11.4 mL/min/1.73 m(2), p = 0.002). Among patients who remained on treatment, mean (SD) eGFR at month 24 was 77.6 (26.5) mL/min/1.73 m(2) in the EVR + Reduced TAC group and 66.1 (19.3) mL/min/1.73 m(2) in the TAC Control group (p < 0.001). Study medication was discontinued due to adverse events in 28.6% of EVR + Reduced TAC and 18.2% of TAC Control patients. Early introduction of everolimus with reduced-exposure tacrolimus at 1 month after liver transplantation provided a significant and clinically relevant benefit for renal function at 2 years posttransplant.
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Eisen HJ, Kobashigawa J, Starling RC, Pauly DF, Kfoury A, Ross H, Wang SS, Cantin B, Van Bakel A, Ewald G, Hirt S, Lehmkuhl H, Keogh A, Rinaldi M, Potena L, Zuckermann A, Dong G, Cornu-Artis C, Lopez P. Everolimus versus mycophenolate mofetil in heart transplantation: a randomized, multicenter trial. Am J Transplant 2013; 13:1203-16. [PMID: 23433101 DOI: 10.1111/ajt.12181] [Citation(s) in RCA: 162] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 12/12/2012] [Accepted: 12/13/2012] [Indexed: 01/25/2023]
Abstract
In an open-label, 24-month trial, 721 de novo heart transplant recipients were randomized to everolimus 1.5 mg or 3.0 mg with reduced-dose cyclosporine, or mycophenolate mofetil (MMF) 3 g/day with standard-dose cyclosporine (plus corticosteroids ± induction). Primary efficacy endpoint was the 12-month composite incidence of biopsy-proven acute rejection, acute rejection associated with hemodynamic compromise, graft loss/retransplant, death or loss to follow-up. Everolimus 1.5 mg was noninferior to MMF for this endpoint at month 12 (35.1% vs. 33.6%; difference 1.5% [97.5% CI: -7.5%, 10.6%]) and month 24. Mortality to month 3 was higher with everolimus 1.5 mg versus MMF in patients receiving rabbit antithymocyte globulin (rATG) induction, mainly due to infection, but 24-month mortality was similar (everolimus 1.5 mg 10.6% [30/282], MMF 9.2% [25/271]). Everolimus 3.0 mg was terminated prematurely due to higher mortality. The mean (SD) 12-month increase in maximal intimal thickness was 0.03 (0.05) mm with everolimus 1.5 mg versus 0.07 (0.11) mm with MMF (p < 0.001). Everolimus 1.5 mg was inferior to MMF for renal function but comparable in patients achieving predefined reduced cyclosporine trough concentrations. Nonfatal serious adverse events were more frequent with everolimus 1.5 mg versus MMF. Everolimus 1.5 mg with reduced-dose cyclosporine offers similar efficacy to MMF with standard-dose cyclosporine and reduces intimal proliferation at 12 months in de novo heart transplant recipients.
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Potena L, Schultz U, Bara C, Arizon J, Dong G, Lopez P, Epailly E. Cardiovascular Events with De Novo Use of Everolimus in Heart Transplant Recipients: 24-Month Analysis of the A2310 Study. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kobashigawa J, Starling R, Dong G, Lopez P, Eisen H. Change in Maximum Intimal Thickness with Everolimus-Based Immunosuppression after Heart Transplantation in Patients at Increased Risk of Cardiac Allograft Vasculopathy. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Wu D, Cheng S, Chen X, Sun M, Wang G, Fu S, Dong G, Wang L, Wu Y. Mitochondrial haplogroup B4 may be a protective factor to oral lichen planus susceptibility in Chinese. Oral Dis 2013; 20:62-8. [PMID: 23413987 DOI: 10.1111/odi.12074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 12/20/2012] [Accepted: 01/15/2013] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Oral lichen planus (OLP) is a common inflammatory disorder with a higher prevalence among women than men. The pathogenesis of OLP is still unclear, and its heredity is not well characterized. Maternal inheritance of mitochondrial DNA (mtDNA) indicates its importance in human ethnic group classification as well disease susceptibility. So, this study was conducted to find whether mtDNA haplogroup associates with OLP susceptibility in Chinese, and determine the influence of C-stretch structure of mtDNA on OLP susceptibility. SUBJECTS AND METHODS We sequenced three hypervariable regions of mtDNA from 242 patients with OLP and 237 healthy controls. The association between mtDNA haplogroups and OLP is tested by chi-square test. RESULTS Seventeen kinds of haplogroups were identified, and the frequency of haplogroup B4 was significantly higher in control group than that of the OLP group (P = 0.013, OR=0.429). In female samples, B4 declared even more significance (P = 0.003, OR=0.296). Meanwhile, the haplotypes of C-stretch in mtDNA did not have any significant difference between case-control groups. CONCLUSIONS Mitochondrial DNA haplogroup B4 might have a protective effect to OLP, and its protective effect resides predominantly in women. However, the association between C-stretch haplotype and OLP susceptibility still needs more patients for evaluation.
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Pleban C, Dong G. Cloning and characterization of Trypanosoma brucei IFT complex B core. Cilia 2012. [PMCID: PMC3555810 DOI: 10.1186/2046-2530-1-s1-p38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Andriankaja OM, Galicia J, Dong G, Xiao W, Alawi F, Graves DT. Gene expression dynamics during diabetic periodontitis. J Dent Res 2012; 91:1160-5. [PMID: 23103632 DOI: 10.1177/0022034512465292] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Diabetes impairs the resolution of periodontal inflammation. We explored pathways altered by inflammation in the diabetic periodontium by using ligatures to induce periodontitis in type-2 diabetic Goto-Kakizaki rats. Ligatures were removed after 7 days, and rats were then treated with TNF inhibitor (pegsunercept) or vehicle alone and euthanized 4 days later. RNA was extracted from periodontal tissue, examined by mRNA profiling, and further analyzed by functional criteria. We found that 1,754 genes were significantly up-regulated and 1,243 were down-regulated by pegsunercept (p < 0.05). Functional analysis revealed up-regulation of neuron-associated and retina-associated gene clusters as well as those related to cell activity and signaling. Others were down-regulated by TNF inhibition and included genes associated with host defense, apoptosis, cell signaling and activity, and coagulation/hemostasis/complement. For selected genes, findings with microarray and rt-PCR agreed. PPAR-α was investigated further by immunohistochemistry due to its anti-inflammatory function and was found to be up-regulated in the gingiva during the resolution of periodontal inflammation and suppressed by diabetes. The results indicate that diabetes-enhanced inflammation both up- and down-regulates genes involved in cellular activity and cell signaling, while it predominantly up-regulates genes involved in the host response, apoptosis, and coagulation/homeostasis/complement and down-regulates mRNA levels of neuron, retina, and energy/metabolism-associated genes.
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Kobashigawa J, Ross H, Bara C, Delgado JF, Dengler T, Lehmkuhl HB, Wang SS, Dong G, Witte S, Junge G, Potena L. Everolimus is associated with a reduced incidence of cytomegalovirus infection following de novo cardiac transplantation. Transpl Infect Dis 2012; 15:150-62. [PMID: 23013440 DOI: 10.1111/tid.12007] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 04/05/2012] [Accepted: 05/27/2012] [Indexed: 01/01/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) causes several complications following cardiac transplantation including cardiac allograft vasculopathy. Previous studies suggested that immunosuppressive treatment based on everolimus might reduce CMV infection. Aiming to better characterize the action of everolimus on CMV and its interplay with patient/recipient serology and anti-CMV prophylaxis, we analyzed data from 3 large randomized studies comparing various everolimus regimens with azathioprine (AZA)- and mycophenolate mofetil (MMF)-based regimens. METHODS CMV data were analyzed from 1009 patients in 3 trials of de novo cardiac transplant recipients who were randomized to everolimus 1.5 mg/day, everolimus 3 mg/day, or AZA 1-3 mg/kg/day, plus standard-dose (SD) cyclosporine (CsA; study B253, n = 634); everolimus 1.5 mg/day plus SD- or reduced-dose (RD)-CsA (study A2403, n = 199); and everolimus 1.5 mg/day plus RD-CsA or MMF plus SD-CsA (study A2411, n = 176). RESULTS In study B253, patients allocated to everolimus experienced almost a 70% reduction in odds of experiencing CMV infection compared with AZA (P < 0.001). In study A2403, CMV infection was low in both everolimus arms, irrespective of CsA dosing, and in study A2411, patients allocated to everolimus experienced an 80% reduction in odds of experiencing CMV infection, compared with MMF (P < 0.001). CMV syndrome/disease was rare and less frequent in everolimus-treated patients. Subgroup analyses showed that the benefit everolimus provides, in terms of CMV events, is retained in CMV-naïve recipients and is independent of anti-CMV prophylaxis or preemptive approaches. CONCLUSIONS Everolimus is associated with a lower incidence of CMV infection compared with AZA and MMF, which combined with its immunosuppressive efficacy and antiproliferative effects may positively impact long-term outcomes.
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Kobashigawa J, Pauly D, Kfoury A, Ross H, Wang SS, Cantin B, van Bakel A, Starling R, Hirt S, Dong G, Panis C, Lopez P, Eisen H. 201 Multicenter Randomized Trial of Everolimus vs. Mycophenolate Mofetil in Heart Transplantation: Final 24 Month Analysis of Efficacy and Safety. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Lehmkuhl H, Bara C, Zuckermann A, Lopez P, Dong G, Hirt S. 667 Development of Serum Lipids in Everolimus Treated Heart Recipients. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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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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Dong G, Teo P, Wickens ZK, Grubbs RH. Primary Alcohols from Terminal Olefins: Formal Anti-Markovnikov Hydration via Triple Relay Catalysis. Science 2011; 333:1609-12. [DOI: 10.1126/science.1208685] [Citation(s) in RCA: 175] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Eisen H, Pauly D, Starling R, Lehmkuhl H, Ross H, Kfoury A, Wang S, Cantin B, Van Bakel A, Zuckermann A, Lopez P, Dong G, Panis C, Jiang H, Cornu-Artis C, Kobashigawa J. 55 Everolimus with Reduced CsA vs MMF with Standard CsA Exposure in De Novo Heart Transplant Recipients: 12 Month Efficacy and Safety Analysis. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Ross H, Kfoury A, Van Bakel A, Ewald G, Burton J, Andreassen A, Segovia J, Lopez P, Cines M, Dong G, Potena L. 171 Lower Incidence of Viral Infections with Everolimus Versus MMF in De Novo Heart Transplant Recipients: 12 Month Analysis of a Randomized Multicenter Study. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Pauly D, Starling R, Kobashigawa J, Wang S, Cantin B, Keogh A, Lehmkuhl H, Hirt S, Lopez P, Dong G, Cines M, Jiang H, Eisen H. 57 Heart Transplant Recipients Treated with Everolimus Have Less Increase in Intimal Thickness vs MMF, Irrespective of Lipid Values. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kobashigawa J, Pauly D, Ross H, Wang S, Cantin B, Burton J, Keogh A, Eisen H, Lopez P, Dong G, Jiang H, Cines M, Starling R. 52 Reduction of Cardiac Allograft Vasculopathy with Everolimus over Mycophenolate Mofetil: Intravascular Ultrasound Results of a Randomized Multicenter Trial. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Dong G, Ferguson JM, Duling AJ, Nicholas RG, Zhang D, Rezvani K, Fang S, Monteiro MJ, Li S, Li XJ, Wang H. Modeling pathogenesis of Huntington's disease with inducible neuroprogenitor cells. Cell Mol Neurobiol 2011; 31:737-47. [PMID: 21452052 DOI: 10.1007/s10571-011-9679-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 02/19/2011] [Indexed: 11/30/2022]
Abstract
Huntington's disease (HD) is caused by an abnormal expansion of CAG trinucleotide repeats encoding polyglutamine (polyQ) in the first exon of the huntingtin (htt) gene. Despite considerable efforts, the pathogenesis of HD remains largely unclear due to a paucity of models that can reliably reproduce the pathological characteristics of HD. Here, we report a neuronal cell model of HD using the previously established tetracycline regulated rat neuroprogenitor cell line, HC2S2. Stable expression of enhanced green fluorescence protein tagged htt exon 1 (referred to as 28Q and 74Q, respectively) in the HC2S2 cells did not affect rapid neuronal differentiation. However, compared to the cells expressing wild type htt, the cell line expressing mutant htt showed an increase in time-dependent cell death and neuritic degeneration, and displayed increased vulnerability to oxidative stress. Increased protein aggregation during the process of neuronal aging or when the cells were exposed to oxidative stress reagents was detected in the cell line expressing 74Q but not in its counterpart. These results suggest that the neuroprogenitor cell lines mimic the major neuropathological characteristics of HD and may provide a useful tool for studying the neuropathogenesis of HD and for high throughput screening of therapeutic compounds.
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Chu D, Zhang Z, Zhou Y, Wang W, Li Y, Zhang H, Dong G, Zhao Q, Ji G. Notch1 and Notch2 have opposite prognostic effects on patients with colorectal cancer. Ann Oncol 2011; 22:2440-2447. [PMID: 21378202 DOI: 10.1093/annonc/mdq776] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Aberrantly activated Notch signaling has been shown to play a key role in carcinogenesis and progression of various human malignancies. In this study, we investigated the expression of Notch1 and Notch2 in colorectal cancer to determine whether they could serve as prognostic predictors. PATIENTS AND METHODS The protein expression of Notch1 and Notch2 was examined by immunohistochemistry in 1003 clinical colorectal cancer specimens. Notch1 and Notch2 protein levels were investigated by immunohistochemistry. Statistical analysis was carried out to assess their prognostic value. RESULTS Significantly negative correlation between Notch1 and Notch2 was found in colorectal cancer (P < 0.001). Notch1 and Notch2 were proved to be inversely correlated with tumor differentiation, depth of invasion, lymph node metastases, distant metastasis, TNM (tumor-node-metastasis) stage and survival of patients, suggesting opposite function of the two receptors. Notch1 and Notch2 were proved to be adverse independent prognostic predictors (P < 0.001). Moreover, a synergistic effect of positive Notch1 and negative Notch2 coexpression on predicting poor overall survival was proved. CONCLUSIONS Notch1 and Notch2 may be independent adverse prognostic predictors for patients with colorectal cancer. These results would contribute to identify more efficient prognostic predictors and therapeutic targets.
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Du XY, Zhu XD, Dong G, Lu J, Wang Y, Zeng L, Zhao TY, Ye HH, Li RS, Bai JY, Chen ZW. Characteristics of Circle of Willis Variations in the Mongolian Gerbil and a Newly Established Ischemia-Prone Gerbil Group. ILAR J 2011; 52:E1-7. [DOI: 10.1093/ilar.52.1.e1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gupta MN, Dong G, Mattiasson B. Purification of endo-polygalacturonase by affinity precipitation using alginate. Biotechnol Appl Biochem 2010. [DOI: 10.1111/j.1470-8744.1993.tb00275.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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