226
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Smith K, Alnifaidy R, Wei Q, Neiman L. Endometrial Indian hedgehog expression is decreased in women with endometriosis. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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227
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Ehrlich K, Wei Q, Bhatnagar D. Increased sensitivity of Aspergillus flavus and Aspergillus parasiticus aflatoxin biosynthesis polyketide synthase mutants to UVB light. WORLD MYCOTOXIN J 2010. [DOI: 10.3920/wmj2010.1218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
One strategy to reduce aflatoxin contamination of maize and cottonseed is to introduce spores of non-aflatoxigenic strains as competitors. Using isogenic mutants we show that, upon 5 or 20 min exposure to 302 nm (UVB) light, the viability of conidia of Aspergillus flavus and Aspergillus parasiticus mutants lacking the ability to accumulate any aflatoxin precursor metabolite is reduced five-fold compared to that of aflatoxin-producing strains or pigmented mutants that accumulate aflatoxin precursors. This result suggests that the long-term viability of introduced non-aflatoxigenic competitor strains may be lower than that of natural aflatoxin-producing isolates when exposed to sunlight.
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228
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Wang D, Zhong L, Wei Q, Gan X, He S. Evolution of MHC class I genes in two ancient fish, paddlefish (Polyodon spathula
) and Chinese sturgeon (Acipenser sinensis
). FEBS Lett 2010; 584:3331-9. [DOI: 10.1016/j.febslet.2010.05.065] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Revised: 05/13/2010] [Accepted: 05/24/2010] [Indexed: 10/19/2022]
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229
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Wei Q, Hu Y. A study on using texture analysis methods for identifying lobar fissure regions in isotropic CT images. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2010; 2009:3537-40. [PMID: 19963803 DOI: 10.1109/iembs.2009.5333083] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The major hurdle for segmenting lung lobes in computed tomographic (CT) images is to identify fissure regions, which encase lobar fissures. Accurate identification of these regions is difficult due to the variable shape and appearance of the fissures, along with the low contrast and high noise associated with CT images. This paper studies the effectiveness of two texture analysis methods - the gray level co-occurrence matrix (GLCM) and the gray level run length matrix (GLRLM) - in identifying fissure regions from isotropic CT image stacks. To classify GLCM and GLRLM texture features, we applied a feed-forward back-propagation neural network and achieved the best classification accuracy utilizing 16 quantized levels for computing the GLCM and GLRLM texture features and 64 neurons in the input/hidden layers of the neural network. Tested on isotropic CT image stacks of 24 patients with the pathologic lungs, we obtained accuracies of 86% and 87% for identifying fissure regions using the GLCM and GLRLM methods, respectively. These accuracies compare favorably with surgeons/radiologists' accuracy of 80% for identifying fissure regions in clinical settings. This shows promising potential for segmenting lung lobes using the GLCM and GLRLM methods.
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230
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Pai D, Wei Q. Simulation of human eyes in three dimensions. J Vis 2010. [DOI: 10.1167/9.8.383] [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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231
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Peng H, Wei Q, Wan Y, Giesy JP, Li L, Hu J. Tissue distribution and maternal transfer of poly- and perfluorinated compounds in Chinese sturgeon (Acipenser sinensis): implications for reproductive risk. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:1868-74. [PMID: 20143820 DOI: 10.1021/es903248d] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
It is critical to investigate the tissue distribution and maternal transfer of poly- and perfluorinated compounds (PFCs) in wild fish for assessing potential effects on ecosystems. Concentrations of 23 PFCs in nine organs and egg were measured in 16 17- to 25-year-old female Chinese sturgeon (Acipenser sinensis, an anadromous fish), that died during propagation. Three polyfluorinated amides were detected in stomach, intestine, and gills and 7:3 FTCA was specifically accumulated in liver. The greatest total concentration of PFCs in egg was 35.1 +/- 10.4 ng/g ww and was predominated by perfluorooctane sulfonate (PFOS) and perfluorotridecanoate acid (PFTriDA). The longer-chain C(11)-C(14) and C(16) perfluorinated carboxylates were more accumulated in Chinese sturgeon than PFOS, partly due to the increasing trends of PFCAs with fish age. Maternal transfer ratios of PFCs expressed as ratios of concentrations in the egg to those in the liver ranged from 0.79 (perfluorooctanoate) to 5.5 (PFTriDA), depending on their carbon chain lengths or protein-water coefficients. The PFOS equivalent of PFC mixtures, calculated by multiplying the relative potency factor of each PFC to PFOS by the corresponding concentration, ranged from 90.6 to 262 ng/g. The hazard quotient was 0.20, implying potential reproductive effects of PFCs on Chinese sturgeon.
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232
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Dubie L, Wei Q, Lovell M, Palmer B. Quantitative Analysis Of Lineage-Specific Chimerism For Monitoring Post-Haematopoietic Stem Cell Transplantation Engraftment. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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233
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Mou Y, Wu Z, Gu J, Liao Z, Lin Z, Wei Q, Huang J, Li Q. HLA-B27 polymorphism in patients with juvenile and adult-onset ankylosing spondylitis in Southern China. ACTA ACUST UNITED AC 2010; 75:56-60. [DOI: 10.1111/j.1399-0039.2009.01406.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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234
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Wu XL, Zhu YT, Wei YG, Wei Q. Strong strain hardening in nanocrystalline nickel. PHYSICAL REVIEW LETTERS 2009; 103:205504. [PMID: 20365992 DOI: 10.1103/physrevlett.103.205504] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Indexed: 05/29/2023]
Abstract
Low strain hardening has hitherto been considered an intrinsic behavior for most nanocrystalline (NC) metals, due to their perceived inability to accumulate dislocations. In this Letter, we show strong strain hardening in NC nickel with a grain size of approximately 20 nm under large plastic strains. Contrary to common belief, we have observed significant dislocation accumulation in the grain interior. This is enabled primarily by Lomer-Cottrell locks, which pin the lock-forming dislocations and obstruct dislocation motion. These observations may help with developing strong and ductile NC metals and alloys.
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235
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Wang H, Zhou CL, Lei H, Wei Q. Inhibition of calcineurin by quercetin in vitro and in Jurkat cells. J Biochem 2009; 147:185-90. [DOI: 10.1093/jb/mvp163] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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236
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Huilan Y, Cui Z, Jianyong F, Lei G, Wei Q. Construction of, and T-helper (Th)1/Th2 immune responses to, a herpes simplex virus type 2 glycoprotein D-cytotoxic T-lymphocyte epitope DNA vaccine. Clin Exp Dermatol 2009; 35:537-42. [DOI: 10.1111/j.1365-2230.2009.03673.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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237
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Chen Y, Dai Y, Yuan Z, Shen H, Wei Q. UP-2.016: Urodynamics Division of Stress Urinary Incontinence and Tension-Free Vaginal Tape Surgery Efficacy Analysis. Urology 2009. [DOI: 10.1016/j.urology.2009.07.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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238
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Li X, Qi X, Zeng H, Wei Q, Li H. UP-2.071: Expression of Ezrin Protein in Renal Cell Carcinoma. Urology 2009. [DOI: 10.1016/j.urology.2009.07.290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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239
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Zhao WF, Fang BH, Li N, Nie SQ, Wei Q, Zhao CS. Fabrication of pH-responsive molecularly imprinted polyethersulfone particles for bisphenol-A uptake. J Appl Polym Sci 2009. [DOI: 10.1002/app.30014] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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240
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Gu J, Huang J, Li C, Zhao L, Huang F, Liao Z, Li T, Wei Q, Lin Z, Pan Y, Huang J, Wang X, Lin Q, Lu C, Wu Y, Cao S, Wu J, Xu H, Yu B, Shen Y. Association of chromosome 2q36.1-36.3 and autosomal dominant transmission in ankylosing spondylitis: results of genetic studies across generations of Han Chinese families. J Med Genet 2009; 46:657-62. [PMID: 19416804 PMCID: PMC2748191 DOI: 10.1136/jmg.2009.066456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Ankylosing spondylitis (AS) is a chronic, potentially crippling, spondyloarthropathy with strong genetic components affecting approximately 0.3% of the population. Its exact genetic mechanism and mode of transmission, however, remains obscure. Methods and results: The authors conducted a genome wide scan on 75 individuals across multiple generations of three Han Chinese families affected with AS. Segregation analysis and pedigree investigation suggested an autosomal dominant inheritance. Pairwise logarithm of odds (LOD) scores were calculated using LINKAGE package for the obtained genotypes. High resolution mapping was then performed based on markers with significant LOD scores. To minimise the number of crossovers in each family, haplotype were constructed and assigned. Two of the pedigrees shared one candidate region for AS on 2q36.1–2q36.3 spanning 6-cM (maximum heterogeneity LOD score of 12.41 at marker D2S2228), while the other showed strong linkage to the HLA-B region. Conclusions: This is the first report which proposes one of the new genetic models of autosomal dominant transmission in AS. The breakthrough in the identification of linkage to chromosome 2q36.1–2q36.3 and the HLA-B region highlights the future potential of more comprehensive genetic studies of determinants of disease risk.
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241
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Ren X, Shao H, Wei Q, Sun Z, Liu N. Advanced Glycation End-products Enhance Calcification in Vascular Smooth Muscle Cells. J Int Med Res 2009; 37:847-54. [DOI: 10.1177/147323000903700329] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Advanced glycation end-products (AGEs), senescent macroprotein derivatives formed at an accelerated rate in diabetes, are closely associated with vascular calcification in humans. In this study, the hypothesis that AGEs enhance calcification in cultured vascular smooth muscle cells (VSMCs) was tested. Using real-time polymerase chain reaction (PCR) and specific protein assays, it was demonstrated that rat aortic VSMCs incubated with AGEs exhibited an increased expression of the AGE receptor (RAGE) and typical bone proteins, such as osteopontin and alkaline phosphatase. Incubation with AGEs also enhanced calcium accumulation in VSMCs in time-and dose-dependent manners. These AGEs-mediated changes in VSMCs were partially attenuated by a neutralizing antibody to RAGE. The results suggest that AGEs that accumulate in diabetes could elicit the osteoblastic differentiation of VSMCs, thereby contributing to vascular calcification via the RAGE pathway. Interruption of the AGE-RAGE interaction might be a promising target for therapeutic intervention to prevent diabetic vascular calcification.
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242
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Wei Q, Wolf-Hall C, Hall III C. Application of Raisin Extracts as Preservatives in Liquid Bread and Bread Systems. J Food Sci 2009; 74:M177-84. [DOI: 10.1111/j.1750-3841.2009.01137.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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243
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Lin Z, Xu H, Gu J, Liao Z, Wei Q, Li C. Investigation and analysis on the delayed diagnosis in patients with ankylosing spondylitis in a Chinese population. Clin Exp Rheumatol 2008; 26:1163. [PMID: 19210892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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244
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Browne H, Nieman L, Williams T, Wei Q, Spies J, Armstrong A. Myomectomy may decrease AMH levels: a pilot study. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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245
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Watanabe Y, Wei Q, Yang D, Chen X, Du H, Yang J, Sato K, Naito Y, Miyazaki N. Swimming behavior in relation to buoyancy in an open swimbladder fish, the Chinese sturgeon. J Zool (1987) 2008. [DOI: 10.1111/j.1469-7998.2008.00451.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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246
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Wang L, Li D, Xiong P, Zhao H, Chang P, El-Naggar A, Sturgis E, Wei Q. Serologic response to HPV and the risk of head and neck cancer. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71849-4] [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] Open
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247
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Wang LE, An J, Liu Z, Lu K, Cheng X, Mills G, Wei Q. Messenger RNA expression and methylation of selected tumor- suppressor genes predict increased risk of ovarian cancer. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71873-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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248
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Wu YY, Wei Q, Zeng H, Chen HJ, Li H, Lin H, Li X. An unusual case of aldosterone- and norepinephrine-secreting retroperitoneal leiomyosarcoma. ACTA ACUST UNITED AC 2008; 41:214-8. [PMID: 18504372 DOI: 10.1159/000134921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Accepted: 01/11/2008] [Indexed: 02/05/2023]
Abstract
A case of retroperitoneal leiomyosarcoma (LMS) in a 38-year-old woman who had a tumor in the retroperitoneum with severe hypertension and hypokalemia is presented. Further investigation revealed an elevated serum aldosterone and norepinephrine level. After tumorectomy, the levels of serum aldosterone and norepinephrine successfully normalized; hypertension and hypokalemia were also cured. The tumor was diagnosed as being a LMS by pathologic examination. We suggested that this was the first case of retroperitoneal LMS shown to be associated with increased levels of serum aldosterone and norepinephrine.
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249
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Wei Q, Hu Y, MacGregor JH, Gelfand G. Segmentation of lung lobes in volumetric CT images for surgical planning of treating lung cancer. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2008; 2006:4869-72. [PMID: 17945864 DOI: 10.1109/iembs.2006.260551] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Study has shown that three-dimensional (3D) visualization of lung cavities has distinct advantages over traditional computed tomographic (CT) images for surgical planning. A crucial step for achieving 3D visualization of lung cavities is the segmentation of lung lobes by identifying lobar fissures in volumetric CT images. Current segmentation algorithms for lung lobes rely on manually placed markers to identify the fissures. This paper presents an autonomous algorithm that effectively segments the lung lobes without user intervention. This algorithm applies a two-stage approach: (a) adaptive fissure sweeping to coarsely define fissure regions of lobar fissures; and (b) watershed transform to refine the location and curvature of fissures within the fissure regions. We have tested this algorithm on 4 CT data sets. Comparing with visual inspection, the algorithm provides an accuracy of 85.5-95.0% and 88.2-92.3% for lobar fissures in the left and right lungs, respectively. This work proves the feasibility of developing an automatic algorithm for segmenting lung lobes.
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250
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Li Q, Wang R, Nie Z, Wang Z, Wei Q. Preparation and characterization of nanostructured Ni(OH)2 and NiO thin films by a simple solution growth process. J Colloid Interface Sci 2008; 320:254-8. [DOI: 10.1016/j.jcis.2007.11.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Revised: 11/01/2007] [Accepted: 11/08/2007] [Indexed: 12/01/2022]
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