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Abdolrahim Ahmadi,Saeid Kaviani,Marjan Yaghmaie,Hossein Pashaiefar,Mohammad Ahmadvand,Mahdi Jalili,Kamran Alimoghaddam,Mohammad Eslamijouybari,Ardeshir Ghavamzadeh 대한혈액학회 2018 Blood Research Vol.53 No.4
BackgroundRecent studies have devoted much attention to non-protein-coding transcripts in relation to a wide range of malignancies. MALAT1, a long non-coding RNA, has been reported to be associated with cancer progression and prognosis. Thus, we here determined MALAT1 gene expression in chronic lymphocytic leukemia (CLL), a genetically heteroge-neous disease, and explored its possible relationships with cytogenetic abnormalities.MethodsMALAT1 expression level was evaluated using real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) on blood mononuclear cells from 30 non-treated CLL patients and 30 matched healthy controls. Cytogenetic abnormalities were de-termined in patients by fluorescence in situ hybridization (FISH).ResultsMALAT1 expression level was up-regulated in the CLL group compared to healthy controls (P=0.008). Del13q14, followed by Del11q22, were the most prevalent cytogenetic abnormalities. We found no association between the FISH results and MALAT1 ex-pression in patients.ConclusionAltered expression of MALAT1 is associated with CLL development. Further investigations are required to assess the relationship between this long non-coding RNA and CLL patient survival and prognosis.
In situ reduction of gold nanoparticles in PDMS matrices and applications for large strain sensing
Donghyeon Ryu,Kenneth J. Loh,Robert Ireland,Mohammad Karimzada,Frank Yaghmaie,Andrea M. Gusman 국제구조공학회 2011 Smart Structures and Systems, An International Jou Vol.8 No.5
Various types of strain sensors have been developed and widely used in the field for monitoring the mechanical deformation of structures. However, conventional strain sensors are not suited for measuring large strains associated with impact damage and local crack propagation. In addition, strain sensors are resistive-type transducers, which mean that the sensors require an external electrical or power source. In this study, a gold nanoparticle (GNP)-based polymer composite is proposed for large strain sensing. Fabrication of the composites relies on a novel and simple in situ GNP reduction technique that is performed directly within the elastomeric poly(dimethyl siloxane) (PDMS) matrix. First, the reducing and stabilizing capacities of PDMS constituents and mixtures are evaluated via visual observation, ultraviolet-visible (UV-Vis) spectroscopy, and transmission electron microscopy. The large strain sensing capacity of the GNP-PDMS thin film is then validated by correlating changes in thin film optical properties (e.g., maximum UV-Vis light absorption) with applied tensile strains. Also, the composite’s strain sensing performance (e.g., sensitivity and sensing range) is also characterized with respect to gold chloride concentrations within the PDMS mixture.
In situ reduction of gold nanoparticles in PDMS matrices and applications for large strain sensing
Ryu, Donghyeon,Loh, Kenneth J.,Ireland, Robert,Karimzada, Mohammad,Yaghmaie, Frank,Gusman, Andrea M. Techno-Press 2011 Smart Structures and Systems, An International Jou Vol.8 No.5
Various types of strain sensors have been developed and widely used in the field for monitoring the mechanical deformation of structures. However, conventional strain sensors are not suited for measuring large strains associated with impact damage and local crack propagation. In addition, strain sensors are resistive-type transducers, which mean that the sensors require an external electrical or power source. In this study, a gold nanoparticle (GNP)-based polymer composite is proposed for large strain sensing. Fabrication of the composites relies on a novel and simple in situ GNP reduction technique that is performed directly within the elastomeric poly(dimethyl siloxane) (PDMS) matrix. First, the reducing and stabilizing capacities of PDMS constituents and mixtures are evaluated via visual observation, ultraviolet-visible (UV-Vis) spectroscopy, and transmission electron microscopy. The large strain sensing capacity of the GNP-PDMS thin film is then validated by correlating changes in thin film optical properties (e.g., maximum UV-Vis light absorption) with applied tensile strains. Also, the composite's strain sensing performance (e.g., sensitivity and sensing range) is also characterized with respect to gold chloride concentrations within the PDMS mixture.
해외저술 소개 : 임상 연구: 진단 ; 간세포암종 환자에서 경동맥 화학색전술 후 주 병변(primary index Lesion)의 영상학적 치료 반응 과 임상 경과(초)
( Ahsun Riaz ),( Frank H. Miller ),( Laura M. Kulik ),( Paul Nikolaidis ),( Vahid Yaghmai ),( Robert J. Lewandowski ),( Mary F. Mulcahy ),( Robert K. Ryu ),( Kent T. Sato ),( Ramona Gupta ),( Ed Wang 대한간암연구회 2010 대한간암학회지 Vol.10 No.-