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227 articles for “cell approach”
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Research ArticleOpen accessIn the abstractCo-Inhibitory Molecule Programmed Death-1 and its Ligands: A New Alternative Therapy for Human Immunodeficiency Virus Infection?A. Leon-Flores, P. Del Rio, G. Reyes-TeranChronic viral infections are characterized by the up-regulation of a set of immunomodulatory receptors. The over-expression of co-inhibitory molecules on T cells leads to a dysfunctional T cell response with an "exhausted" phenotype. Programmed Death-1 (PD-1) is a molecule that exerts an inhibitory signal on the T cell receptor when it binds to the PD-L1 or PD-L2 ligands present on … …American Journal of Infectious Diseases, Vol. 8, Issue 4 · 28 Dec 2012 · 6,962 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeasuring the Operating Efficiency of Solar Cell Companies in Taiwan with Data Envelopment AnalysisJui-Min HsiaoThis study discusses the Data Envelopment Analysis (DEA) approach to measure the operating efficiency of solar cell companies. With active and constructive advancement of the government, competition in the solar cell industry became even tenser. When drawing up the competitive strategies, one firm should identify the key indicators of its operating efficiency. This study incorporates three inputs (the number of … …American Journal of Applied Sciences, Vol. 9, Issue 12 · 7 Nov 2012 · 6,920 accessesView PDFCite
Research ArticleOpen accessIn the abstractCell-Based Therapies in the Prevention of Solid Organ Transplant RejectionAdrian E. Morelli, Sherrie J. DivitoProblem statement: Organ transplantation is a life-saving and increasingly common procedure, as it often serves as the only treatment available for end-stage organ disease. Although the constant development of new and more effective immunosuppressive drugs has revolutionized the prevention and treatment of acute graft rejection, these drugs have significant toxicity, greatly increase patient susceptibility to neoplasms and infection and exert … …American Journal of Immunology, Vol. 8, Issue 2 · 26 Jul 2012 · 7,416 accessesView PDFCite
Research ArticleOpen accessIn the abstractHistone Tail Modifications of H3 and H4 during the Physarum polycephalum Cell CycleMarie-Claire Arnaud, Christophe ThirietProblem statement: Histone modifications are required for chromatin activities and are believed to form an epigenetic code. However, the inheritance of the histone post-translational modifications remains unclear. Approach and Results: The aim of this study was to evaluate the histone modifications throughout the cell cycle and to determine whether the histone marks are transferred to daughter cells. Using the naturally … …OnLine Journal of Biological Sciences, Vol. 12, Issue 2 · 29 May 2012 · 7,580 accessesView PDFCite
Research ArticleOpen accessIn the abstractLeukemia and TherapyN. B. Alitheen, S. K. Yeap, N. H. Faujan et al.Problem statement: Leukemia is a cancer which linked intimately with the immune system. It is a group of heterogenous neoplastic disorder of white blood cells characterized by the uncontrolled proliferation and block in differentiation of hematopoeitic cells. Generally, leukemia can be classified into myeloid or lymphoid referring to the type of abnormal cell found most in the blood. Approach: Many … …American Journal of Immunology, Vol. 7, Issue 4 · 27 Feb 2012 · 8,123 accessesView PDFCite
Research ArticleOpen accessIn the abstractFeature Extraction and Classification of Blood Cells Using Artificial Neural NetworkMagudeeswaran Veluchamy, Karthikeyan Perumal, Thirumurugan PonuchamyProblem statement: One method of evaluating the clinical status is counting of cell types based on features that it contains. There is a need for a rapid, reproducible method, superior to human inspection and for the classification of cells. For solving these problems, quantitative digital-image analysis is applied and a novel method for classifications of affected blood cells from normal … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 18 Feb 2012 · 8,156 accessesView PDFCite
Research ArticleOpen accessIn the abstractDistribution, Arrangement and Interconnectedness of Cell Surface Receptor sites in the body of an OrganismUtoh-Nedosa, Uchechukwu AnastasiaCell surface receptors have been identified as the sites of disease infectivity in living organisms in a previous study. Drugs used for the treatment or cure of infections have to eliminate infections through attacking infective organisms at the cell surface receptors to which the infective organisms are attached. Problem statement: The present study examines a wide sample of living things … …OnLine Journal of Biological Sciences, Vol. 11, Issue 4 · 26 Jan 2012 · 7,355 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Simplified Two-Dimentional Unit Cell Model for Analyzing the Transverse Shear Stiffness of Three-Dimentional Truss-Like Core Sandwich BeamSuphattharachai Chomphan, Manit LeekitwattanaProblem statement: In structural analysis using finite element software, a complex three-dimensional model affects the speed of calculation time. A simplified two-dimensional model should be used for analyzing structural responses to reduce the calculation time. Approach: This study presents a study on the analysis of the transverse shear stiffness of three-dimensional truss-like core sandwich beam using a simplified two-dimensional unit … …American Journal of Applied Sciences, Vol. 9, Issue 2 · 26 Dec 2011 · 7,176 accessesView PDFCite
Research ArticleOpen accessIn the abstractErythropoietin-Like Effects of Dihydroartemisinin in Wistar Albino RatsUtoh-Nedosa Uchechukwu Anastasia, Nedosa Kenechi Stanislaus, Onyedibe Ikenna KennethArtemisinin drugs were active during the intra-erythrocytic stage of malaria parasite infection. The activity of artemisinin and synthetic endoperoxides was related to their interaction with heme. The electrophillic intermediate formed from artemisinin in the presence of heme alkylates the protein portion of hemoglobin preferentially to the heme portion. Problem statement: Since there might be an interaction between artemisinin and the … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 4 · 9 Dec 2011 · 7,785 accessesView PDFCite
Research ArticleOpen accessIn the abstractStimulatory Effects of Dihydroartemisinin on the Leucocyte Population of Wistar Albino RatsU. A. Utoh-Nedosa, P. A. Akah, C. O. Okoli et al.Problem statement: Five dosages of Dihydroartemisinin (DHA) which included 1 mg kg-1; a repeated dose of 1; 2; 60 and 80 mg kg-1 were administered orally to albino rats for 5 days. The results of the study showed that dihydroartemisinin treatment significantly elevated the total white cell count (p<0.01); the percentage neutrophil count (p<0.01) and the percentage lymphocyte count (p<0.05). … …American Journal of Infectious Diseases, Vol. 7, Issue 3 · 17 Nov 2011 · 7,350 accessesView PDFCite