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Huang YF, Zhang SL, Jin F, Cheng D, Zhou YP, Li HR, Tang ZM, Xue J, Cai W, Dong JH, Zhao L. Activity of Corilagin on Post-Parasiticide Liver Fibrosis in Schistosomiasis Animal Model. Int J Immunopathol Pharmacol 2013; 26:85-92. [PMID: 23527711 DOI: 10.1177/039463201302600108] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study investigates the effects and possible molecular mechanisms of corilagin extraction on prevention of Schistosoma japonicum ova-induced granulomas and liver fibrosis. As a result, under a light microscope, when compared to a model group, the corilagin group showed smaller granulomas, less liver cell denaturation and less inflammatory cell infiltration, and the connective tissues were significantly decreased. By Masson staining, the liver sections from the corilagin group showed less collagen distributed around granulomas, decreased liver fibrosis in the portal tracts and less formed interlobular tissue. The expression of hydroxyproline, IL-13 in liver and GATA3 in spleen in the model group was significantly higher than that in the normal group (P<0.05 or 0.01), while the level of hydroxyproline, IL-13 and GATA3 in the corilagin group were significantly lower than that in the model group (P<0.05). In conclusion, corilagin extraction can decrease the level of Th2-associated profibrotic cytokine IL-13, and down-regulate the transcription of GATA3 mRNA in spleen cells, which alleviate the hepatic fibrosis caused by egg granuloma in Schistosoma japonicum infection.
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Cheng D, Xiong C, Li J, Sui C, Wang S, Li H, Jiang X. The effect of mahogunin gene mutant on reproduction in male mice: a new sight for infertility? Andrologia 2012; 46:98-105. [PMID: 23210986 DOI: 10.1111/and.12050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2012] [Indexed: 01/29/2023] Open
Abstract
Mahogunin is an important mediator of chromogenesis and neurodegeneration. Mahoganoid is a mutation of the mahogunin gene, which causes a pleiotropic phenotype that includes suppression of obesity, spongiform neurodegeneration and improvement of insulin sensitivity. Our previous research found that mahoganoid widely expressed in the male rat reproductive system, and mahoganoid-deficient mice have reduced embryonic viability. But the reproductive change in mahogunin knockout (md(nc) ) male mice has not been reported previously. Here, we report that the mahogunin mRNA also widely exists in reproductive system of male mice, and its mRNA expression in the testis was in accordance with the first spermatogenesis wave cycle. Moreover, we find that md(nc) male mice were able to mate with females but no pups are delivered. Besides, the sperms' active progressive motility and hormone secretion (E2, FSH, LH, PRL) were obviously decreased while abnormal sperm rate showed no significant difference in md(nc) compared to wild-type (WT) male mice. This study indicates the mahogunin deficiency results in the infertility of male mice, disruption of hormones secretion and impaired active progressive motility, which may additionally illuminate the aetiology of male infertility in human.
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103
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Adams J, Jordan S, Spencer K, Belanger J, Cheng D, Shock T, Karcher J. Energy expenditure in US automotive technicians and occupation-specific cardiac rehabilitation. Occup Med (Lond) 2012; 63:103-8. [PMID: 23144121 DOI: 10.1093/occmed/kqs192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The standard exercise protocol for patients in a traditional cardiac rehabilitation (rehab) programme may not be adequate for preparing manual workers for a safe return to work, as these activities bear little resemblance to the physical movements and force exertion required in most industrial jobs. AIMS To measure the energy expenditure as metabolic equivalents (METs) required for automotive technicians, to compare this MET level with that normally attained in traditional cardiac rehab programmes and to suggest cardiac rehab exercises for automotive technicians based on specificity of training. METHODS Automotive technicians who volunteered to participate had their MET levels measured while they performed a defined series of work tasks in the service department of an automobile dealership. Their daily walking distance was also determined. RESULTS Thirty-six of 95 eligible subjects participated; a response rate of 38%. Mean peak MET level was 7.1, less than the 8 METs target training goal often used in traditional cardiac rehab programmes. However, patients' outcome MET levels in cardiac rehab are usually measured by a treadmill stress test, whereas the subjects reached 7.1 METs while performing work tasks. The subjects walked an average of 5 km during a normal workday. CONCLUSIONS Because MET level measurements are work specific, automotive technicians in a cardiac rehab programme should strive to reach and maintain a level of >7 METs while performing specific training exercises that mimic the work tasks they must do throughout the day. They can also benefit from traditional endurance training such as treadmill walking.
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104
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Cuffe S, Azad A, Brhane Y, Cheng D, Chen Z, Xu W, Shepherd F, Tsao M, Reisman D, Liu G. Association of Two Brm Promoter Variants with Survival Outcomes of Stage IV Non Small Cell Lung Cancer (NSCLC) Patients. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32749-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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105
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Jiang YF, He B, Ma J, Li NP, Gong GZ, Cheng D. Comparison of the antiviral effects of entecavir and adefovir dipivoxil in chronic HBV infection: a randomized control trial. Acta Gastroenterol Belg 2012; 75:316-321. [PMID: 23082701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIMS The purpose of this study is to compare the antiviral efficacy of entecavir (ETV) and adefovir dipivoxil (ADV) at various time points during the treatment. METHODS A randomized, controlled, open-label study was designed to analyze the kinetics of HBeAg seroconversion, HBV DNA level, and liver and renal functions in 72 ETV-treated chronic hepatitis B (CHB) patients and 66 ADV-treated CHB patients. The data was collected every 12 weeks up to 96 weeks after drug administration. RESULTS The negative rate of HBeAg seroconversion was significantly increased at 24 weeks in ETV-treated patients, whereas in ADV-treated patients, these changes were not significant. The serum HBV DNA levels were significantly decreased from 24 weeks in both ETV- and ADV-treated patients. Other than ETV showing significantly decreased levels of HBV DNA at 24 weeks when compared with ADV, there was no difference in virological response between two treatments at any other time points. The serum alanine aminotransferase (ALT) and total bilirubin (TBIL) levels were significantly decreased 12 weeks after either ETV- or ADV-treated patients without differences between two treatments. The urea nitrogen levels were in normal range and there was no difference between two groups. CONCLUSIONS Our study suggested that both ETV and ADV could be used as monotherapy for nucleotide-naive patients, but ETV has displayed potential efficacy in HBeAg seroconversion.
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Gottesman M, Patrick P, Cheng D, Boylan E, Guardado J. JCV Antibody Status: Patient Decision Making and Clinical Course (P02.140). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p02.140] [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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107
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Hu J, Cheng D, Gao X, Bao J, Ma X, Wang H. Vitamin C enhances the in vitro development of porcine pre-implantation embryos by reducing oxidative stress. Reprod Domest Anim 2012; 47:873-9. [PMID: 22239270 DOI: 10.1111/j.1439-0531.2011.01982.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Vitamin C (Vc) is a natural compound supplemented to culture media to guarantee the appropriate reactive oxygen species (ROS) level, as well as protect cells from oxidative damage and apoptosis. The current study was conducted to determine the effects of Vc (0, 2.5, 5, 10, 20 and 40 μg/ml) on the ROS production, developmental ability and quality of in vitro produced porcine parthenotes. The results show that: (i) the ROS levels in the embryos significantly decrease in the Vc-treated groups compared with the control (p < 0.05), (ii) the rates of blastocyst formation and total cell numbers in each blastocyst are significantly higher in the Vc-treated groups than in the control (p < 0.05); the optimum concentration of Vc is 20 μg/ml, (iii) the relative expression of Bcl-xL significantly increases and that of Bax is downregulated after Vc treatment. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labelling analysis indicates that the ratio of apoptotic cells in the blastocyst is also significantly lower in Vc-treated groups (p < 0.05) and (iv) Vc treatment can also increase the expression of the Nanog gene in porcine embryos, with a fivefold increase in 20 μg/ml Vc treatment compared with the control (p < 0.05). Therefore, Vc improves the development of porcine embryos by reducing the ROS levels. Vc addition in PZM-3 medium can decrease the number of apoptotic cells and increase the cell numbers in blastocysts to produce high-quality porcine embryos in vitro.
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108
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Kobayashi K, Cheng D, Huynh M, Ratinac KR, Thordarson P, Braet F. Imaging fluorescently labeled complexes by means of multidimensional correlative light and transmission electron microscopy: practical considerations. Methods Cell Biol 2012; 111:1-20. [PMID: 22857920 DOI: 10.1016/b978-0-12-416026-2.00001-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
These days the common ground between structural biology and molecular biology continues to grow thanks to the biomolecular insights offered by correlative microscopy, even though the vision of combining insights from different imaging tools has been around for nearly four decades. The use of correlative imaging methods to dissect the cell's internal structure is progressing faster than ever as shown by the boom in the number of methodological approaches available for correlative microscopy studies, each designed to address a specific scientific question. In this chapter, we will present a relatively straightforward approach to combining information from fluorescence microscopy and electron microscopy at the supramolecular level. The method combines live-cell and/or confocal laser microscopy with classical sample preparation for transmission electron microscopy (TEM), thereby allowing the integration of dynamic details of subcellular processes with insights about the organelles and molecular machinery involved. We illustrate the applicability of this multidimensional correlative microscopy approach on cultured Caco-2 colorectal cancer cells exposed to fluorescently labeled cisplatin, and discuss how these methods can deepen our understanding of key cellular processes, such as drug uptake and cell fate.
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109
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Cheng D, Hao Y. Comparative evaluation of the microcolumn gel card test and the conventional tube test for measurement of titres of immunoglobulin G antibodies to blood group A and blood group B. J Int Med Res 2011; 39:934-43. [PMID: 21819727 DOI: 10.1177/147323001103900328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The conventional tube test (CTT) and microcolumn gel card test (MG) were used to measure immunoglobulin G (IgG) antibody titres to blood group A (anti-A) and blood group B (anti-B) in 288 serum samples. Diagnostic concordance and correlations between the two methods were analysed. MG was more sensitive than CTT in the detection of both anti-A and anti-B IgG. Correlation coefficients for the two methods for the titration of anti-A and anti-B were 0.8470 and 0.8336, respectively. The regression equation representing the relationship between the two methods was calculated and used to convert critical values for anti-A and anti-B IgG antibodies determined by CTT to critical values for MG titration. Analyses showed 86.8% and 89.9% diagnostic concordant rates for the detection of anti-A and anti-B IgG, respectively. It was concluded that titration results obtained by MG correlate well with those obtained by CTT, but critical values determined by CTT need to be converted into corresponding MG values.
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110
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Cheng D, Cheng J, Yong Y, Yang C, Mao ZS. CFD Prediction of the Critical Agitation Speed for Complete Dispersion in Liquid-Liquid Stirred Reactors. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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111
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Colino F, de Grosbois J, Cheng D, Brewster K, Binsted G. A perception-action dissociation revealed through the interaction with blurred stimuli. J Vis 2011. [DOI: 10.1167/11.11.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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112
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Hao Y, Cheng D, Ma Y, Zhou W, Wang Y. The Relationship Between Oxygen Concentration, Reactive Oxygen Species and the Biological Characteristics of Human Bone Marrow Hematopoietic Stem Cells. Transplant Proc 2011; 43:2755-61. [DOI: 10.1016/j.transproceed.2011.06.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 05/31/2011] [Accepted: 06/06/2011] [Indexed: 01/17/2023]
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113
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Cheng D, Noble J, Tang M, Schupf N, Mayeux R, Luchsinger J. Type 2 diabetes and late-onset Alzheimer's disease. Dement Geriatr Cogn Disord 2011; 31:424-30. [PMID: 21757907 PMCID: PMC3142096 DOI: 10.1159/000324134] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/06/2011] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND/AIMS To confirm in a cohort recruited in 1999-2001 our finding in a cohort recruited in 1992-1994 relating type 2 diabetes (T2D) to late-onset Alzheimer's disease (LOAD). METHODS Participants were 1,488 persons aged 65 years and older without dementia at baseline from New York City. T2D was ascertained by self-report. Dementia and LOAD were ascertained by standard research procedures. Proportional hazard regression was used for analyses relating T2D and LOAD. RESULTS The prevalence of T2D was 17%. There were 161 cases of dementia and 149 cases of LOAD. T2D was related to dementia (hazard ratio = 1.7; 95% confidence interval = 1.4-2.9) and LOAD (1.6; 1.0-2.6) after adjustment for age, sex, education, ethnic group and apolipoprotein E ε4. This association was weaker when only AD - excluding cases of mixed dementia - was considered (hazard ratio = 1.3; 95% confidence interval = 0.8-2.2). CONCLUSION T2D is associated with LOAD. Cerebrovascular disease may be an important mediator.
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Liu G, Gramling S, Munoz D, Cheng D, Azad AK, Mirshams M, Chen Z, Xu W, Roberts H, Shepherd FA, Tsao MS, Reisman D. Two novel BRM insertion promoter sequence variants are associated with loss of BRM expression and lung cancer risk. Oncogene 2011; 30:3295-304. [PMID: 21478907 DOI: 10.1038/onc.2011.81] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SWI/SNF (SWItch/sucrose non-fermentable) complexes are ATP-dependent chromatin remodeling enzymes critically involved in the regulation of multiple functions, including gene expression, differentiation, development, DNA repair, cell adhesion and cell cycle control. BRM, a key SWI/SNF complex subunit, is silenced in 15-20% of many solid tumors. As BRM-deficient mice develop 10-fold more tumors when exposed to carcinogens, BRM is a strong candidate for a cancer susceptibility gene. In this paper, we show that BRM is regulated by transcription, thus demonstrating that the promoter region is important for BRM expression. We sequenced the BRM promoter region, finding two novel promoter indel polymorphisms, BRM -741 and BRM -1321, that are in linkage disequilibrium (D'≥0.83). The variant insertion alleles of both polymorphisms produce sequence variants that are highly homologous to myocyte enhancer factor-2 (MEF2) transcription factor-binding sites; MEF2 is known to recruit histone deacetylases that silence BRM expression. Each polymorphic BRM insertion variant is found in ~20% of Caucasians, and each correlates strongly with the loss of protein expression of BRM, both in cancer cell lines (P=0.009) and in primary human lung tumor specimens (P=0.015). With such strong functional evidence, we conducted a case-control study of 1199 smokers. We found an increased risk of lung cancer when both BRM homozygous promoter insertion variants were present: adjusted odds ratio of 2.19 (95% confidence interval, 1.40-3.43). Thus, we here demonstrate a strong functional association between these polymorphisms and loss of BRM expression. These polymorphisms thus have the potential to identify a sub-population of smokers at greater lung cancer risk, wherein this risk could be driven by an aberrant SWI/SNF chromatin-remodeling pathway.
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116
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Cheng D, DeGrosbois J, Smirl J, Binsted G. Sequence effects during manual aiming: A departure from Fitts's Law? J Vis 2010. [DOI: 10.1167/10.7.1064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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117
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Uniat D, Colino F, De Grosbois J, Cheng D, Binsted G. Motor output effect of objects presented in the blindspot. J Vis 2010. [DOI: 10.1167/10.7.1059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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118
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Liu G, Cheng D, Le Maitre A, Liu N, Chen Z, Seymour L, Ding K, Shepherd FA, Tsao MS. EGFR and ABCG2 polymorphisms as prognostic and predictive markers in the NCIC CTG BR.21 trial of single-agent erlotinib in advanced non-small cell lung cancer (NSCLC). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.7538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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119
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Cheng D, Hou M, Moors M, de Bocarmé TV, Kruse N. Triggering surface nickel diffusion by adsorption of carbon. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.03.088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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120
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Gottesman MH, Friedman-Urevich S, Boylan E, Cheng D. Neutralizing antibodies to 500 μg interferon beta-1b: 28-month results of the IDEAS extension trial. Mult Scler 2009; 16:78-80. [DOI: 10.1177/1352458509352665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The Interferon Dose Escalation Assessment of Safety extension trial monitored neutralizing antibodies to interferon beta-1b in patients who currently or had previously received the double dose (500 μg) for up to 28 months. Fifteen patients entered the extension trial; five patients were neutralizing antibody-positive at the start of the trial. The present study demonstrates that when neutralizing antibodies develop in patients receiving higher doses of interferon beta-1b they tend to persist for a prolonged period, although neutralizing antibody titers tend to decrease over time and some patients may revert to neutralizing antibody-negative status.
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121
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Cheng D, Kim W, Garner B. P3.003 Regulation of neuronal alpha-synuclein gene expression by liver X receptor ligands. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70567-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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122
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James C, Gupta A, Cheng D, Padley S, Goulden N, Skellett S. A boy frightened of going to bed and bumps in the night. West J Med 2009. [DOI: 10.1136/bmj.b2787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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123
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Chen J, Li L, Wen J, Tang Z, Ji S, Sha G, Cheng Z, Sun Q, Cheng D, Liu Z. Observation of efficacy and safety of converting the calcineurin inhibitor to sirolimus in renal transplant recipients with chronic allograft nephropathy. Transplant Proc 2008; 40:1411-5. [PMID: 18589119 DOI: 10.1016/j.transproceed.2008.03.096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Accepted: 03/06/2008] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate the efficacy and safety of converting from a calcineurin inhibitor (CNI) to sirolimus among renal transplant recipients with chronic allograft nephropathy (CAN). METHODS In 16 patients with CAN, substituted sirolimus for CsA or FK506 and observed the incidence of acute rejection and changes in serum creatinine, triglycerides, cholesterol, blood uric acid, and peripheral blood leukocyte/platelet counts within 12 months. All recipients underwent an allograft biopsy before conversion. The targeted sirolimus level was 4-8 ug/L. RESULTS After conversion to sirolimus, the creatinine level of 7 cases decreased and the efficacy rate was (43.8%). No acute rejection occurred during the follow-up. The cases with hypercholesteremia increased from 3 to 7 after conversion; hypertriglyceridemia increased from 3 to 5; leukopenia occurred in 2; subnormal platelet counts increased from 2 to 3; and hyperuricemia increased from 6 to 7. Meanwhile, the average level of peripheral blood leukocytes obviously decreased in the first month, the average peripheral blood cholesterol increased over 12 months, but the average content of peripheral blood platelets, triglyceride and blood uric acid failed to display as statistic difference. Eight patients showed C4d deposition in peritubular capillary in graft tissue before conversion, 7 cases of whom showed no improvement in renal function. In 6 cases there was no C4d deposition in peritubular capillary in graft tissue. Only 2 of 6 cases showed no improvement in renal function. There were 6 patients whose creatinine level was <2.48 mg/dL before conversion, and renal function in 5 of them improved in a year after conversion. In contrast, among 10 patients whose blood creatinine level was >2.48 mg/dL, only 2 cases improved. CONCLUSION It is safe for patients with CAN to use substitute sirolimus for CNI; the incidence of acute rejection did not increase. In this study, 43.8% of patients showed improved renal function. The main adverse reactions after conversion to sirolimus were hypercholesteremia and decreased peripheral blood leukocytes. The serum creatinine level and the deposition of C4d in peritubular capillary were important factors influencing therapeutic efficacy.
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Dong B, Liu X, Huang X, Hou G, Cheng D, Jiao J. Vaginal administration of mifepristone: effectiveness and benefits. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.1334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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125
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Randall CN, Strasburger D, Prozonic J, Morris SN, Winkie AD, Parker GR, Cheng D, Fennell EM, Lanham I, Vakil N, Huang J, Cathcart H, Huang R, Poduslo SE. Cluster analysis of risk factor genetic polymorphisms in Alzheimer's disease. Neurochem Res 2008; 34:23-8. [PMID: 18307033 DOI: 10.1007/s11064-008-9626-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2007] [Accepted: 02/04/2008] [Indexed: 10/22/2022]
Abstract
Multiple genetic variants may contribute to the risk of developing Alzheimer's disease. We have analyzed polymorphisms in 9 genes to determine whether particular combinations would contribute to this risk. The genes were APOE, LDLr, CST3, CTSD, TNF, BACE1, MAPT, STH, eNOS, and TFCP2. Three risk groups for the disease were identified. Risk group I was younger, was heterozygous for the CST3 (GA), CTSD2936 (AG), TNF -308 (AG) genetic variants. Risk group II was older, was homozygous for the -427 APOE promoter polymorphism (TT), and heterozygous for the MAPT deletion and for the STH variant (QR). Group III had both the youngest and oldest subjects, were heterozygous for the -863 (AC) and -1031 (CT) TNF promoter polymorphisms. All three groups carried the APOE 4 allele and were heterozygous for both BACE1 polymorphisms. The control groups were carriers of the APOE 3 allele and were homozygous for the BACE1 genetic variants.
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