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Xu LS, Wang MN, Cheng P, Kang ZS, Hulbert SH, Chen XM. Molecular mapping of Yr53, a new gene for stripe rust resistance in durum wheat accession PI 480148 and its transfer to common wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2013; 126:523-33. [PMID: 23090143 DOI: 10.1007/s00122-012-1998-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 10/06/2012] [Indexed: 05/22/2023]
Abstract
Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most damaging diseases of wheat worldwide. It is essential to identify new genes for effective resistance against the disease. Durum wheat PI 480148, originally from Ethiopia, was resistant in all seedling tests with several predominant Pst races in the US under controlled greenhouse conditions and at multiple locations subject to natural infection for several years. To map the resistance gene(s) and to transfer it to common wheat, a cross was made between PI 480148 and susceptible common wheat genotype Avocet S (AvS). Resistant F(3) plants with 42 chromosomes were selected cytologically and by testing with Pst race PST-100. A total of 157 F(4) plants from a single F(3) plant with 2n = 42 tested with PST-100 segregated in a 3 resistant: 1 susceptible ratio, indicating that a single dominant gene from PI 480148 conferred resistance. Using the F(3:4) population and the resistance gene-analog polymorphism (RGAP) and simple sequence repeat (SSR) markers, the gene was mapped to the long arm of chromosome 2B. SSR marker Xwmc441 and RGAP marker XLRRrev/NLRRrev ( 350 ) flanked the resistance gene by 5.6 and 2.7 cM, respectively. The effective resistance of the gene to an Australian Pst isolate virulent to Yr5, which is also located on 2BL and confers resistance to all US Pst races, together with an allelism test of the two genes, indicated that the gene from PI 480148 is different from Yr5 and should be a new and useful gene for resistance to stripe rust. Resistant common wheat lines with plant types similar to AvS were selected for use in breeding programs.
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Zhou T, Wang X, Cheng P, Wang T, Xiong D, Wang X. Improving the thermal conductivity of epoxy resin by the addition of a mixture of graphite nanoplatelets and silicon carbide microparticles. EXPRESS POLYM LETT 2013. [DOI: 10.3144/expresspolymlett.2013.56] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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78
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Zhou T, Chen D, Jiu J, Nge TT, Sugahara T, Nagao S, Koga H, Nogi M, Suganuma K, Wang X, Liu X, Cheng P, Wang T, Xiong D. Electrically conductive bacterial cellulose composite membranes produced by the incorporation of graphite nanoplatelets in pristine bacterial cellulose membranes. EXPRESS POLYM LETT 2013. [DOI: 10.3144/expresspolymlett.2013.73] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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79
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Cheng P, Su X, Gao H, Zhang T. All vertebral body metastases of breast cancer: a case report and literature review. EUR J GYNAECOL ONCOL 2013; 34:473-475. [PMID: 24475587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE Investigating the clinical and imaging features of bone metastasis in breast cancer, in order to raise early diagnosis level and to avoid misdiagnosis. MATERIALS AND METHODS An analysis of imaging of breast cancer bone metastasis by consulting relevant literatures. The authors also performed bone biopsy in the patient presented. RESULTS Biopsy results show that ductal carcinoma can be seen in bone marrow and in immune markers CK (+) and CD68 (-). CONCLUSION Multiple systemic metastases are common for breast cancer, but it is rare that one patient has metastasis in all vertebrae. The positive rate of ordinary X-ray is lower than magnetic resonance imaging (MRI) or positron emission tomography/computed tomography (PET/CT) for detecting bone metastasis, but if an accurate diagnosis is to be made, all the imaging and clinical data should be combined.
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Zhang S, Chen Z, Yang R, Chen J, Cheng P, He Z, Liu Z, Qi Z. Irinotecan Combined with Co-Stimulatory Molecule Blockade Prolongs Survival of Cardiac Allografts in Alloantigen-Primed Mice. Transplantation 2012. [DOI: 10.1097/00007890-201211271-02215] [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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81
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Wang XF, Luo XG, Ying JJ, Xiang ZJ, Zhang SL, Zhang RR, Zhang YH, Yan YJ, Wang AF, Cheng P, Ye GJ, Chen XH. Enhanced superconductivity by rare-earth metal doping in phenanthrene. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:345701. [PMID: 22872048 DOI: 10.1088/0953-8984/24/34/345701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We successfully synthesized La- and Sm-doped phenanthrene powder samples and observed superconductivity in them at T(c) around 6 K. The T(c)s are 6.1 K for La(1) phenanthrene and 6.0 K for Sm(1) phenanthrene, which are enhanced by about 1 and 0.5 K compared to those in A(3) phenanthrene (A = K and Rb) and in Ae(1.5) phenanthrene (Ae = Sr and Ba) superconductors, respectively. The superconductive shielding fractions for La(1) phenanthrene and Sm(1) phenanthrene are 46.1% and 49.8% at 2 K, respectively. The small effect of doping with the magnetic ion Sm(3+) on T(c) and the positive pressure dependence coefficient of T(c) strongly suggest unconventional superconductivity in the doped phenanthrene superconductors. The charge transfer to organic molecules from dopants of La and Sm induces a redshift of 7 cm(-1) per electron for the mode at 1441 cm(-1) in the Raman spectra, which is almost the same as those observed in A(3) phenanthrene (A = K and Rb) and Ae(1.5) phenanthrene (Ae = Sr and Ba) superconductors.
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Lane JB, Lee HS, Smith LW, Cheng P, Percy AK, Glaze DG, Neul JL, Motil KJ, Barrish JO, Skinner SA, Annese F, McNair L, Graham J, Khwaja O, Barnes K, Krischer JP. Clinical severity and quality of life in children and adolescents with Rett syndrome. Neurology 2011; 77:1812-8. [PMID: 22013176 DOI: 10.1212/wnl.0b013e3182377dd2] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The clinical features and genetics of Rett syndrome (RTT) have been well studied, but examination of quality of life (QOL) is limited. This study describes the impact of clinical severity on QOL among female children and adolescents with classic RTT. METHODS Cross-sectional and longitudinal analyses were conducted on data collected from an NIH-sponsored RTT natural history study. More than 200 participants from 5 to 18 years of age with classic RTT finished their 2-year follow-up at the time of analysis. Regression models after adjustment for their MECP2 mutation type and age at enrollment were used to examine the association between clinical status and QOL. RESULTS Severe clinical impairment was highly associated with poor physical QOL, but worse motor function and earlier age at onset of RTT stereotypies were associated with better psychosocial QOL; conversely, better motor function was associated with poorer psychosocial QOL. CONCLUSIONS Standard psychosocial QOL assessment for children and adolescents with RTT differs significantly with regard to their motor function severity. As clinical trials in RTT emerge, the Child Health Questionnaire 50 may represent one of the important outcome measures.
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83
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Adams J, Cheng P, Deonarain L, Frank C, Mayers A, Smith BJ, Yuen H. Extinction of care-induced vocalizations by a desensitization routine on a palliative care unit. Am J Hosp Palliat Care 2011; 29:318-20. [PMID: 21908456 DOI: 10.1177/1049909111420701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Vocalizations during care occur frequently in patients with dementia, and are not uncommon in the palliative setting. Underlying trigger factors may include pain during movement, fear of being turned, startle reflex, attempts at verbal communication, environmental factors such as cold water, and other possible etiologies. A case of a 92 year old female who screamed and called out during bathing is presented. This patient with comorbid dementia and brain lesions did not respond to pre-event pain medication, and became somnolent due to opioid administration for presumed incident pain. A non-pharmacological approach, with a patient-centered focus rather than task orientation, succeeded in extinguishing the vocalizations after a period of six weeks.
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Ying JJ, Wang XF, Wu T, Xiang ZJ, Liu RH, Yan YJ, Wang AF, Zhang M, Ye GJ, Cheng P, Hu JP, Chen XH. Measurements of the anisotropic in-plane resistivity of underdoped FeAs-based pnictide superconductors. PHYSICAL REVIEW LETTERS 2011; 107:067001. [PMID: 21902359 DOI: 10.1103/physrevlett.107.067001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Indexed: 05/31/2023]
Abstract
We systematically investigated the in-plane resistivity anisotropy of electron-underdoped EuFe(2-x)Co(x)As(2) and BaFe(2-x)Co(x)As(2) and hole-underdoped Ba(1-x)K(x)Fe(2)As(2). Large in-plane resistivity anisotropy was found in the former samples, while tiny in-plane resistivity anisotropy was detected in the latter ones. When it is detected, the anisotropy starts above the structural transition temperature and increases smoothly through it. As the temperature is lowered further, the anisotropy takes a dramatic enhancement through the magnetic transition temperature. We found that the anisotropy is universally tied to the presence of T-linear behavior of resistivity. Our results demonstrate that the nematic state is caused by electronic degrees of freedom, and the microscopic orbital involvement in the magnetically ordered state must be fundamentally different between the hole- and electron-doped materials.
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Song CL, Wang YL, Cheng P, Jiang YP, Li W, Zhang T, Li Z, He K, Wang L, Jia JF, Hung HH, Wu C, Ma X, Chen X, Xue QK. Direct Observation of Nodes and Twofold Symmetry in FeSe Superconductor. Science 2011; 332:1410-3. [DOI: 10.1126/science.1202226] [Citation(s) in RCA: 333] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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86
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Lenz H, Ning Y, Zhang W, Yang D, Cole S, Agafitei RD, Menendez X, Cheng P, Iqbal S, El-Khoueiry AB. Association of single-nucleotide polymorphisms (SNPs) in sodium channel, voltage-gated, type I, alpha subunit (SCN1A) with toxicity in metastatic colorectal cancer (mCRC) patients (pts) in a phase I study of patupilone (EPO906) and celebrex (C). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14039] [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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87
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Teague ML, Drayna GK, Lockhart GP, Cheng P, Shen B, Wen HH, Yeh NC. Measurement of a sign-changing two-gap superconducting phase in electron-doped Ba(Fe(1-x)Co(x))2As2 single crystals using scanning tunneling spectroscopy. PHYSICAL REVIEW LETTERS 2011; 106:087004. [PMID: 21405593 DOI: 10.1103/physrevlett.106.087004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Indexed: 05/30/2023]
Abstract
Scanning tunneling spectroscopic studies of Ba(Fe(1-x)Co(x))(2)As(2) (x=0.06, 0.12) single crystals reveal direct evidence for predominantly two-gap superconductivity. These gaps decrease with increasing temperature and vanish above the superconducting transition T(c). The two-gap nature and the slightly doping- and energy-dependent quasiparticle scattering interferences near the wave vectors (±π, 0) and (0, ±π) are consistent with sign-changing s-wave superconductivity. The excess zero-bias conductance and the large gap-to-T(c) ratios suggest dominant unitary impurity scattering.
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Moya C, Hahn J, Cheng P, Jayaraman A, Huang Z. Investigation of IL-6 and IL-10 signalling via mathematical modelling. IET Syst Biol 2011; 5:15. [DOI: 10.1049/iet-syb.2009.0060] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Guan J, Cheng P, Huang S, Wu J, Li Z, You X, Hao L, Guo Y, Li R, Zhang H. Optimized Preparation of Levofloxacin-loaded Chitosan Nanoparticles by Ionotropic Gelation. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.phpro.2011.11.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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90
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Tucci V, Merritt R, Somai K, Cheng P, O'Keefe K, Sanson T. 46: Is There Is a Sex Bias In Descriptions of Applicants In Standard Letters of Recommendation for Emergency Medicine Residencies? Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.078] [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]
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Cheng P, Chen XM. Molecular mapping of a gene for stripe rust resistance in spring wheat cultivar IDO377s. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2010; 121:195-204. [PMID: 20198466 DOI: 10.1007/s00122-010-1302-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Accepted: 02/11/2010] [Indexed: 05/27/2023]
Abstract
Stripe rust, caused by Puccinia striiformis f. sp. tritici, is one of the most important diseases of wheat worldwide. The best strategy to control stripe rust is to grow resistant cultivars. One such cultivar resistant to most races in North America is 'IDO377s'. To study the genetics of its resistance this spring wheat cultivar was crossed with 'Avocet Susceptible' (AvS). Seedlings of the parents, F(2) plants, and F(3) lines were tested under controlled greenhouse conditions with races PST-43 and PST-45 of P. striiformis f. sp. tritici. IDO377s carries a single dominant gene for resistance. Resistance gene analog polymorphism (RGAP) and simple sequence repeat (SSR) techniques were used to identify molecular markers linked to the resistance gene. A total of ten markers were identified, two of which flanked the locus at 4.4 and 5.5 cM. These flanking RGAP markers were located on chromosome 2B with nulli-tetrasomic lines of 'Chinese Spring'. Their presence in the ditelosomic 2BL line localized them to the long arm. The chromosomal location of the resistance gene was further confirmed with two 2BL-specific SSR markers and a sequence tagged site (STS) marker previously mapped to 2BL. Based on the chromosomal location, reactions to various races of the pathogen and tests of allelism, the IDO377s gene is different from all previously designated genes for stripe rust resistance, and is therefore designated Yr43. A total of 108 wheat breeding lines and cultivars with IDO377s or related cultivars in their parentage were assayed to assess the status of the closest flanking markers and to select lines carrying Yr43. The results showed that the flanking markers were reliable for assisting selection of breeding lines carrying the resistance gene. A linked stripe rust resistance gene, previously identified as YrZak, in cultivar Zak was designated Yr44.
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Fox JP, Grignol VP, Gustafson J, Cheng P, Weighall R, Ouellette J, Hellan M, Dowdy Y, Termuhlen P. Incidental lymphoma during sentinel lymph node biopsy for breast cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e11083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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93
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Ning FL, Ahilan K, Imai T, Sefat AS, McGuire MA, Sales BC, Mandrus D, Cheng P, Shen B, Wen HH. Contrasting spin dynamics between underdoped and overdoped Ba(Fe1-xCox)2As2. PHYSICAL REVIEW LETTERS 2010; 104:037001. [PMID: 20366674 DOI: 10.1103/physrevlett.104.037001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2009] [Indexed: 05/29/2023]
Abstract
We report the first NMR investigation of spin dynamics in the overdoped nonsuperconducting regime of Ba(Fe1-xCox)2As2 up to x=0.26. We demonstrate that the absence of interband transitions with large momentum transfer Q{AF} approximately (pi/a,0) between the hole and electron Fermi surfaces results in complete suppression of antiferromagnetic spin fluctuations for x greater than or approximately 0.15. Our experimental results provide direct evidence for a correlation between T{c} and the strength of Q{AF} antiferromagnetic spin fluctuations.
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Banovac F, Cheng P, Campos-Nanez E, Kallakury B, Popa T, Abeledo H, Lindish D, Mantell M, Cleary K. Abstract No. 255: Radiofrequency Ablation of Lung Tumors in Swine Assisted by a Navigation Device with Pre-Procedural Volumetric Planning. J Vasc Interv Radiol 2009. [DOI: 10.1016/j.jvir.2008.12.250] [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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95
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Yao JK, Cheng P. Poster Sessions AP13: Novel Techniques and Technologies. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.81.s1.13_1.x] [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]
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96
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Zhao B, Zhao XQ, Chen Z, Shi W, Cheng P, Yan SP, Liao DZ. Structures and near-infrared luminescence of unique 4d–4f heterometal–organic frameworks (HMOF). CrystEngComm 2008. [DOI: 10.1039/b807491g] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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97
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Wilson JW, Ott CM, zu Bentrup KH, Ramamurthy R, Quick L, Porwollik S, Cheng P, McClelland M, Tsaprailis G, Radabaugh T, Hunt A, Fernandez D, Richter E, Shah M, Kilcoyne M, Joshi L, Nelman-Gonzalez M, Hing S, Parra M, Dumars P, Norwood K, Bober R, Devich J, Ruggles A, Goulart C, Rupert M, Stodieck L, Stafford P, Catella L, Schurr MJ, Buchanan K, Morici L, McCracken J, Allen P, Baker-Coleman C, Hammond T, Vogel J, Nelson R, Pierson DL, Stefanyshyn-Piper HM, Nickerson CA. Space flight alters bacterial gene expression and virulence and reveals a role for global regulator Hfq. Proc Natl Acad Sci U S A 2007; 104:16299-304. [PMID: 17901201 PMCID: PMC2042201 DOI: 10.1073/pnas.0707155104] [Citation(s) in RCA: 280] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A comprehensive analysis of both the molecular genetic and phenotypic responses of any organism to the space flight environment has never been accomplished because of significant technological and logistical hurdles. Moreover, the effects of space flight on microbial pathogenicity and associated infectious disease risks have not been studied. The bacterial pathogen Salmonella typhimurium was grown aboard Space Shuttle mission STS-115 and compared with identical ground control cultures. Global microarray and proteomic analyses revealed that 167 transcripts and 73 proteins changed expression with the conserved RNA-binding protein Hfq identified as a likely global regulator involved in the response to this environment. Hfq involvement was confirmed with a ground-based microgravity culture model. Space flight samples exhibited enhanced virulence in a murine infection model and extracellular matrix accumulation consistent with a biofilm. Strategies to target Hfq and related regulators could potentially decrease infectious disease risks during space flight missions and provide novel therapeutic options on Earth.
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Minkowycz WJ, Cheng P, Chang CH. MIXED CONVECTION ABOUT A NONISOTHERMAL CYLINDER AND SPHERE IN A POROUS MEDIUM. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/01495728508961859] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cheng P, Quek C, Mah M. PREDICTING THE IMPACT OF ANTICIPATORY ACTION ON U.S. STOCK MARKET?AN EVENT STUDY USING ANFIS (A NEURAL FUZZY MODEL). Comput Intell 2007. [DOI: 10.1111/j.1467-8640.2007.00304.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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100
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Cheng P, Driessen A, Tijsma E, Udipi K. Ethoxyethyl methacrylate-based copolymers — A novel platform for drug-eluting stent coatings. J Control Release 2006; 116:e92-4. [PMID: 17718991 DOI: 10.1016/j.jconrel.2006.09.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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