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Li Y, Tian J, Tian H, Chen X, Ping W, Tian C, Lei H. Mutation-based selection and analysis of Komagataeibacter hansenii HDM1-3 for improvement in bacterial cellulose production. J Appl Microbiol 2016; 121:1323-1334. [PMID: 27455093 DOI: 10.1111/jam.13244] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 03/28/2016] [Accepted: 04/10/2016] [Indexed: 11/29/2022]
Abstract
AIMS A low yield of bacterial cellulose (BC) always results from an excessive accumulation of organic acids. Screening and the selection of bacterial mutants with a low accumulation of organic acids is an efficient approach for improving BC production. METHODS AND RESULTS In combination with the proton suicide method (medium containing NaBr-NaBrO3 ), diethyl sulphate chemical mutagenesis coupled with 60 Co-γ irradiation treatment were performed for the screening and selection of desired mutant lines with a high yield of BC. Two high-yield strains, Br-3 and Co-5, as well as a low-yield strain, Br-12, were obtained. Amplified fragment length polymorphism (AFLP) was applied to explore the differences between the mutant lines and the wild type. For the Br-12 line, three specific fragments were verified, corresponding to TonB-dependent transport (TBDT), exopolysaccharides output protein (PePr) and an unknown gene. For Co-5, two specific fragments were matched, acsD and UDP-galactose-4-epimerase. In addition, metabolic analysis for the mutant lines indicated that BC production may be limited by excessive accumulation of organic acids in the fermentation. The limitation would be resolved by the cross-talk of genes involved in BC biosynthesis. CONCLUSIONS Reduced organic acid by-products from glucose in bypasses were found to be responsible for the high-yield BC synthesis in Komagataeibacter hansenii mutant strains. SIGNIFICANCE AND IMPACT OF THE STUDY The metabolic process was varied by mutagenesis-induced gene disruption of the metabolic products. A new idea was provided for the targeted screening and characterization of mutants in the future.
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Tsoi L, Stuart P, Tian C, Gudjonsson J, al E, Hinds D, Nair R, Abecasis G, Elder J. 358 Large scale meta-analysis characterizes genetic architecture for common psoriasis-associated variants. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.391] [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]
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Yang M, Tian C, Liang XF, Zheng H, Zhao C, Zhu K. Genetic structure and diversity in natural and stocked populations of the mandarin fish (Siniperca chuatsi) in China. GENETICS AND MOLECULAR RESEARCH 2015; 14:5153-60. [PMID: 26125708 DOI: 10.4238/2015.may.18.5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The Chinese perch, or mandarin fish (Siniperca chuatsi), is a freshwater fish that is endemic to East Asia. In this study, we investigated the genetic diversity and structure of nine natural mandarin fish populations (from the Yangtze River and Amur River basins) and six hatchery stocks (from central and south China) using microsatellite markers. The results show that the genetic diversity of the Yangtze River populations was high and stable, and genetic differences between them were not significant. In contrast, a low level of genetic diversity and strong genetic structure were detected in the Amur River population. These results suggest that the Yangtze River region and the Amur River region should be treated as two separate units in conservation programs. The hatchery stocks exhibited low genetic diversity and significant genetic differentiation compared to natural populations; this may result in a significant impact on the species if escape events occur. Therefore, a scientific aquaculture management strategy is necessary for the long-term development of hatcheries.
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Pei H, Tian C, Sun X, Qian X, Liu P, Liu W, Chang Q. Overexpression of MicroRNA-145 Promotes Ascending Aortic Aneurysm Media Remodeling through TGF-β1. Eur J Vasc Endovasc Surg 2015; 49:52-9. [DOI: 10.1016/j.ejvs.2014.10.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 10/22/2014] [Indexed: 12/25/2022]
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Deng ZD, Lu J, Myjak MJ, Martinez JJ, Tian C, Morris SJ, Carlson TJ, Zhou D, Hou H. Design and implementation of a new autonomous sensor fish to support advanced hydropower development. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:115001. [PMID: 25430138 DOI: 10.1063/1.4900543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Acceleration in development of additional conventional hydropower requires tools and methods to perform laboratory and in-field validation of turbine performance and fish passage claims. The new-generation Sensor Fish has been developed with more capabilities to accommodate a wider range of users over a broader range of turbine designs and operating environments. It provides in situ measurements of three-dimensional (3D) linear accelerations, 3D rotational velocities, 3D orientation, pressure, and temperature at a sampling frequency of 2048 Hz. It also has an automatic floatation system and built-in radio-frequency transmitter for recovery. The relative errors of the pressure, acceleration, and rotational velocity were within ±2%, ±5%, and ±5%, respectively. The accuracy of orientation was within ±4° and accuracy of temperature was ±2 °C. The new-generation Sensor Fish is becoming a major technology and being deployed for evaluating the conditions for fish passage of turbines or other hydraulic structures in both the United States and several other countries.
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Tian C, Wong B, Hornung L, Khoury J, Miller L, Bange J, Rybalsky I, Rutter M. G.P.171. Neuromuscul Disord 2014. [DOI: 10.1016/j.nmd.2014.06.213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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82
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Tian C, Sargent DJ, Krivak TC, Powell MA, Gabrin MJ, Brower SL, Coleman RL. Evaluation of a chemoresponse assay as a predictive marker in the treatment of recurrent ovarian cancer: further analysis of a prospective study. Br J Cancer 2014; 111:843-50. [PMID: 25003664 PMCID: PMC4150278 DOI: 10.1038/bjc.2014.375] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/23/2014] [Accepted: 06/12/2014] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Recently, a prospective study reported improved clinical outcomes for recurrent ovarian cancer patients treated with chemotherapies indicated to be sensitive by a chemoresponse assay, compared with those patients treated with non-sensitive therapies, thereby demonstrating the assay's prognostic properties. Due to cross-drug response over different treatments and possible association of in vitro chemosensitivity of a tumour with its inherent biology, further analysis is required to ascertain whether the assay performs as a predictive marker as well. METHODS Women with persistent or recurrent epithelial ovarian cancer (n=262) were empirically treated with one of 15 therapies, blinded to assay results. Each patient's tumour was assayed for responsiveness to the 15 therapies. The assay's ability to predict progression-free survival (PFS) was assessed by comparing the association when the assayed therapy matches the administered therapy (match) with the association when the assayed therapy is randomly selected, not necessarily matching the administered therapy (mismatch). RESULTS Patients treated with assay-sensitive therapies had improved PFS vs patients treated with non-sensitive therapies, with the assay result for match significantly associated with PFS (hazard ratio (HR)=0.67, 95% confidence interval (CI)=0.50-0.91, P=0.009). On the basis of 3000 simulations, the mean HR for mismatch was 0.81 (95% range=0.66-0.99), with 3.4% of HRs less than 0.67, indicating that HR for match is lower than for mismatch. While 47% of tumours were non-sensitive to all assayed therapies and 9% were sensitive to all, 44% displayed heterogeneity in assay results. Improved outcome was associated with the administration of an assay-sensitive therapy, regardless of homogeneous or heterogeneous assay responses across all of the assayed therapies. CONCLUSIONS These analyses provide supportive evidence that this chemoresponse assay is a predictive marker, demonstrating its ability to discern specific therapies that are likely to be more effective among multiple alternatives.
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Grendys EC, Fiorica JV, Orr JW, Holloway R, Wang D, Tian C, Chan JK, Herzog TJ. Overview of a chemoresponse assay in ovarian cancer. Clin Transl Oncol 2014; 16:761-9. [PMID: 24986099 PMCID: PMC4139589 DOI: 10.1007/s12094-014-1192-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 05/31/2014] [Indexed: 12/31/2022]
Abstract
The objective of this review is to summarize recent scientific and medical literature regarding chemoresponse assays or chemotherapy sensitivity and resistance assays (CSRAs), specifically as applied to epithelial ovarian cancer. A total of sixty-seven articles, identified through PubMed using the key words “in vitro chemoresponse assay,” “chemo sensitivity resistance assay,” “ATP,” “HDRA,” “EDR,” “MiCK,” and “ChemoFx,” were reviewed. Recent publications on marker validation, including relevant clinical trial designs, were also included. Recent CSRA research and clinical studies are outlined in this review. Published findings demonstrate benefits regarding patient outcome with respect to recent CSRAs. Specifically, analytical and clinical validations, as well as clinical utility and economic benefit, of the most common clinically used CSRA in the United States support its use to aid in making effective, individualized clinical treatment selections for patients with ovarian cancer.
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Lowery W, Stany M, Phippen N, Bunch K, Tian C, Maxwell G, Darcy K, Hamilton C. Diminished survival of separated, divorced, or widowed uterine cancer patients: A potential focus for survivorship programs. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.547] [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]
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85
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Byrd K, Maxwell G, Bshara W, Risinger J, Tian C, Omilian A, Odunsi K, Morrison C, Conrads T, Consortium W. Subcellular localization of AT-rich interactive domain1A protein expression is associated with survival in epithelial ovarian and peritoneal carcinoma. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.249] [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]
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86
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Dubil E, Bshara W, Odunsi K, Morrison C, Tian C, Risinger J, Maxwell G, Hamilton C, Darcy K, Consortium W. Ovarian cancers with nuclear special AT-rich sequence-binding protein 1 and cytoplasmic AT-rich interactive domain-containing protein 1A are rare, drug-resistant, and deadly. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.302] [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]
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Xu DL, Zhang HC, Lu C, Qi ER, Tian C, Wu YS. Analytical criterion for amplitude death in nonautonomous systems with piecewise nonlinear coupling. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:042906. [PMID: 24827312 DOI: 10.1103/physreve.89.042906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Indexed: 06/03/2023]
Abstract
We investigate the amplitude death phenomenon in a nonautonomous chained network with complicated piecewise nonlinear coupling functions. An analytical criterion for the boundary of the amplitude death region is derived by using the average method. The mechanism of the amplitude death in the nonautonomous networks is very different from that of autonomous systems and rapid dynamic transitions could halt the amplitude death. Numerical verifications are carried out to check jump transitions among different solution branches and further confirm the correctness of the theoretical results.
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Zhang X, Zhang L, Tian C, Yang L, Wang Z. Genetic variants and risk of cervical cancer: epidemiological evidence, meta-analysis and research review. BJOG 2014; 121:664-74. [DOI: 10.1111/1471-0528.12638] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2013] [Indexed: 12/31/2022]
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Ponugoti B, Xu F, Zhang C, Tian C, Pacios P, Graves DT. FOXO1 Promotes Wound Healing Through the Upregulation of TGF[beta]1 and Prevention of Oxidative Stress. J Exp Med 2013. [DOI: 10.1084/jem.21012oia53] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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90
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Rutherford T, Orr J, Grendys E, Edwards R, Krivak T, Holloway R, Moore R, Puls L, Tillmanns T, Schink J, Tian C, Herzog T. A prospective study evaluating the clinical relevance of a chemoresponse assay for treatment of patients with persistent or recurrent ovarian cancer. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.07.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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91
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Tian C, Rutter M, Hornung L, Khoury J, Miller L, Bange J, Wong B. P.2.18 Bone mineral density and bone mineral content as measures of bone health in ambulatory boys with Duchenne Muscular Dystrophy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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92
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Krivak T, Secord AA, Richard S, Leath C, Moore R, Coleman R, Fiorica J, Barter J, Downey G, Tian C, Lele S. A chemoresponse assay for prediction of platinum resistance in primary ovarian cancer. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.07.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhang Y, Zhao D, Tian C, Li F, Li X, Zhang L, Yang H. Stro-1-positive human mesenchymal stem cells prolong skin graft survival in mice. Transplant Proc 2013; 45:726-9. [PMID: 23498813 DOI: 10.1016/j.transproceed.2012.06.086] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 05/09/2012] [Accepted: 06/06/2012] [Indexed: 12/29/2022]
Abstract
BACKGROUND Human mesenchymal stem cells (MSCs) and its stromal cell antigen 1 Stro-1 positive (Stro-1(+)) subgroup possess immunosuppressive properties. Our objective was to evaluate the in vivo inhibitory effect of MSCs and the Stro-1 subset. METHODS Isolated human MSCs from bone marrow-derived mononuclear cells of healthy adults, and Stro-1(+) cells were cultured before sorting. Female C57BL/6 mice and female BALB/c mice were used as donors and recipients in an allogeneic skin graft model, respectively. The recipients were divided randomly into 4 groups: (1) The Stro-1(+) MSCs group received 2 × 10(6) Stro-1(+) MSCs injected into irradiated recipients before skin grafting. (2) The MSC group (2 × 10(6)) injected into the irradiated recipient mice before skin grafting. (3) The irradiated control group just irradiated before skin grafting. (4) The syngenic control group included irradiated BALB/c mice that received skin from syngenic mice. The main data included skin graft survival times, histologic changes on hematoxylin and eosin (HE) staining and plasma transforming growth factor (TGF)-β concentrations in recipients measured by enzyme-linked immunosorbent assay (ELISA) before and after transplantation. RESULTS The skin graft survival time in the MSCs group (12.13 ± 3.34 days) was not significantly prolonged versus the irradiated controls (11.38 ± 1.01 days), but it was notably prolonged among the Stro-1(+) MSCs group (30.68 ± 5.89 days) compared with the irradiated control and the MSCs groups, respectively. The histology of skin grafts among the stro-1(+) group showed a clear structure. After grafting, plasma TGF-β concentrations were almost the same as before transplantation among the irradiated and the syngenic controls but significantly increased in the MSCs and Stro-1(+) MSCs groups. CONCLUSIONS Stro-1(+) MSCs induced greater prolongation of skin grafts in mice than unsorted MSCs; however, TGF-β expression did not contribute to this effect.
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Choi S, Kim S, Lee J, Lim H, Kim Y, Tian C, So H, Park R, Choung Y.H. Gingko biloba extracts protect auditory hair cells from cisplatin-induced ototoxicity by inhibiting perturbation of gap junctional intercellular communication. Neuroscience 2013; 244:49-61. [DOI: 10.1016/j.neuroscience.2013.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 03/30/2013] [Accepted: 04/01/2013] [Indexed: 12/23/2022]
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Meng YH, Tian C, Liu L, Wang L, Chang Q. Elevated expression of connective tissue growth factor, osteopontin and increased collagen content in human ascending thoracic aortic aneurysms. Vascular 2013; 22:20-7. [DOI: 10.1177/1708538112472282] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Little is known about the molecular mechanisms of ascending thoracic aortic aneurysms (ATAAs). Abnormal extracellular matrix changes and variations of vascular smooth muscle cells (VSMCs) have been implicated in abdominal aortic aneurysm formation. Our objective was to investigate the alterations of collagen, stimulators of collagen synthesis and synthetic VSMCs in patients with ATAA. Surgical samples from ATAA were taken from 20 patients, and 18 control aortas were obtained during coronary artery bypass surgery. All aortic wall specimens were fixed for histology and immunohistochemistry for collagen, connective tissue growth factor (CTGF) and osteopontin. Realtime polymerase chain reaction was used to determine their mRNA expression. Histology and semi-quantitative analysis demonstrated that protein levels of collagen, CTGF and osteopontin significantly increased by 1.9-, 1.4- and 2.2-fold, respectively ( P < 0.01 for all) in the ATAA group than in the control group. Similar results were shown in mRNA levels of type Iα1and IIIα1 collagen, CTGF and osteopontin. The protein levels of CTGF and osteopontin were positively correlated with aortic diameter ( r = 0.67, r = 0.73; P < 0.01 for both). In conclusion, overexpression of aortic CTGF and synthetic VSMCs marker (osteopontin), which is likely to be responsible for elevated aortic collagen content, may provide a potential mechanism for aneurysmal enlargement.
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Tian C, Wang M, Liu X, Wang H, Zhao C. HPLC Quantification of Nine Chemical Constituents from the Five Parts of Abutilon theophrasti Medic. J Chromatogr Sci 2013; 52:258-63. [DOI: 10.1093/chromsci/bmt021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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97
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Li LJ, Hua XX, Wang GY, Huang YY, Wang LZ, Tian C, Du JL. Synthesis, crystal structure, and thermal stability of 1D coordination polymer [Zn(BDOA)(Py)2(H2O)] n. RUSS J COORD CHEM+ 2013. [DOI: 10.1134/s1070328413020103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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98
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Shi N, Tian C, Liang X, Jiang P, Liang L, Zhou L, Shu Y, Chen P, Wang Y. Proteome analysis of actin filament-associated proteins in the postnatal rat cerebellum. Neuroscience 2012; 227:90-101. [DOI: 10.1016/j.neuroscience.2012.09.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 08/21/2012] [Accepted: 09/22/2012] [Indexed: 10/27/2022]
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99
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Zhang L, Liu X, Li H, Sui H, Li X, Zhang J, Yang Z, Tian C, Gao G. Hydrodynamic and Mass Transfer Performances of a New SiC Foam Column Tray. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200032] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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100
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Meilang Q, Zhang Y, Zhang J, Zhao Y, Tian C, Huang J, Fan H. Polymorphisms in the SLC11A1 gene and tuberculosis risk: a meta-analysis update. Int J Tuberc Lung Dis 2012; 16:437-46. [PMID: 22326178 DOI: 10.5588/ijtld.10.0743] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Polymorphisms in SLC11A1 gene have been extensively studied for an association with tuberculosis (TB); however, results from replication studies have been inconsistent. OBJECTIVE To comprehensively evaluate the genetic risk of polymorphisms (D543N, 3'UTR TGTG ins/del, INT4, [GT]n) in the SLC11A1 gene for TB. METHODS A meta-analysis was carried out to analyse the association between SLC11A1 polymorphisms and TB risk. RESULTS A total of 82 case-control studies in 35 articles were included in the meta-analysis. The results showed that these four polymorphisms were associated with an increased risk of TB (D543N OR 1.31, 95%CI 1.11-1.55; 3'UTR TGTG ins/del OR 1.45, 95%CI 1.25-1.68; INT4 OR 1.27, 95%CI 1.09-1.49; [GT]n OR 1.35, 95%CI 1.14-1.61). In further stratified analyses by ethnicity and TB forms, significant increased risks were found in subgroups of Asians and in pulmonary TB (PTB) for all four polymorphisms, while an increased risk of extra-pulmonary TB (EPTB) was found for D543N polymorphism. CONCLUSIONS This meta-analysis suggests that polymorphisms in the SLC11A1 gene contribute to TB (both PTB and EPTB), particularly in Asians.
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