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419 results for “Enzyme”
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Research ArticleOpen accessIn the abstractConcentration and Physicochemical Properties of Chitosan Derivatives Determine the Induction of Defense Responses in Roots and Leaves of Tobacco (Nicotiana tabacum) PlantsAlejandro B. Falcón-Rodríguez, Juan C. Cabrera, Eduardo Ortega, Miguel Ángel Martínez-TéllezProblem statement: The chitosan derivatives promote diverse defensive responses in plants, which are affected by chitosan chemical features and concentration. Glucanase (EC 3.2.1.6), Phenylalanine Ammonia-Lyase (PAL, EC 4.3.1.5) and peroxidase (POD, EC 1.11.1.6) are key enzymes in tobacco defense responses. Thus, the aim of this study was to know the behavior of their enzymatic activity in leaves and roots of … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 3 · 30 Sep 2009 · 9,263 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Characterization of Fusarium Oxysporum F. Sp. Cubense of BananaS. K. Leong, Z. Latiffah, S. BaharuddinProblem statement: Morphological characterization of Fusarium species which emphasize on microscopic and cultural characteristics are not sufficient to characterize Fusarium Oxysporum F. sp. Cubense (FOC) from banana as these characteristics could easily influence by environmental factors. As an alternative molecular methods were used to characterize and to assess genetic variation of FOC from different banana cultivars. Knowledge on the genetic … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 9,267 accessesView PDFCite
Research ArticleOpen accessIn the abstractIntrinsically Unstructured Proteins: Potential Targets for Drug DiscoveryPathan Salma, Chintan Chhatbar, Sriram SeshadriProblem statement: The function of a protein is dependent on its three-dimensional structure. However, numerous proteins lacking intrinsic globular 3D structure under physiological conditions had been recognized. These proteins are frequently involved in some of the most critical cellular control mechanisms and it appears that their rapid turnover, aided by their unstructured nature in the unbound state, provides a level … …American Journal of Infectious Diseases, Vol. 5, Issue 2 · 30 Jun 2009 · 7,578 accessesView PDFCite
Research ArticleOpen accessIn the abstractProtective Effect of Enicostemma littorale Blume on Rat Model of Diabetic NeuropathyNiraj Mukundray Bhatt, Suparna Barua, Sarita GuptaProblem statement: Poor glycemic control and oxidative stress is implicated as a common pathway in the development of diabetic neuropathy. Approach: In the present study, we investigated the protective effects of Enicostemma littorale Blume (EL) (2.5 g kg-1), a hypoglycemic and antioxidant herbal medicine in alloxan-induced diabetic neuropathy in male Charles foster rats. Results: Tail flick latency in hot immersion … …American Journal of Infectious Diseases, Vol. 5, Issue 2 · 30 Jun 2009 · 7,838 accessesView PDFCite
Research ArticleOpen accessIn the abstractLack of Association of Glutathione S-transferase Gene Polymorphisms in Iranian Prostate Cancer SubjectsB. Sahar Ansari, R. Vasudevan, M. Mirinargesi et al.Problem statement: Glutathione S-transferase is super family genes that encode enzymes which involve in the detoxification of the cell and protects DNA from damage. Conflicting results was found in several studies in association with GSTT1 and GSTM1 gene polymorphisms and prostate cancer. In this study, we determined the association between the GSTT1 and GSTM1 gene polymorphism and prostate cancer in … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 1 · 31 Mar 2009 · 8,273 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetection of DNA Hypomethylation Mediated Floral Induction in Longan and Spinach Using the HAT-RAPD TechniqueS. Anuntalabhochai, R. Chundet, N. Buapong, R. W. CutlerIn this study, the HAT-RAPD technique was used to detect DNA methylation in the four plant species, rice (Oryza sativa), petunia (Petunia hybrida), spinach (Spinacea oleracea L.) and longan (Dimocarpus longan Lour.), which were treated using 5-azacytidine, potassium chlorate (KClO3) and a low temperature induction. Rice and petunia were chosen to be induced because in these species it is known … …American Journal of Applied Sciences, Vol. 6, Issue 2 · 28 Feb 2009 · 6,977 accessesView PDFCite
Research ArticleOpen accessIn the abstractModification of Artificial Oliogosaccharides in Recombinant Escherichia coli CellsTomohisa Kato, Rie Mitsumori, Kenichi HatanakaArtificial oligosaccharides were modified using recombinant Escherichia coli cells that overexpress sialidase. Based on the principle of the saccharide primer method by using bacterial cells overexpressing enzymes related to oligosaccharide modification. Problem statement: It is very hard to obtain oligosaccharides, because they have complex and diverse structures with different linkage patterns and monosaccharide components. Approach: It had been known that … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 4 · 31 Dec 2008 · 6,802 accessesView PDFCite
Research ArticleOpen accessIn the abstractNovel Metal Accumulator and Protease Secretor Microbes from East Calcutta WetlandSanhita Chowdhury, Madhusmita Mishra, V.K. Adarsh et al.Nine bacterial isolates were screened from different sites of East Calcutta Wetland, an ecosystem located at the eastern fringes of Calcutta. Other than being a biodiversity rich area, the important feature of this system is that it is a natural sewage treatment plant for the city of Calcutta. In addition to daily sewage including solid and soluble wastes, a considerable … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 3 · 30 Sep 2008 · 8,987 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Novel Rodent Model of Autism: Intraventricular Infusions of Propionic Acid Increase Locomotor Activity and Induce Neuroinflammation and Oxidative Stress in Discrete Regions of Adult Rat BrainDerrick F. MacFabe, Karina Rodríguez-Capote, Jennifer E. Hoffman et al.Innate neuroinflammatory changes, increased oxidative stress and disorders of glutathione metabolism may be involved in the pathophysiology of autism spectrum disorders (ASD). Propionic acid (PPA) is a dietary and gut bacterial short chain fatty acid which can produce brain and behavioral changes reminiscent of ASD following intraventricular infusion in rats. Adult Long-Evans rats were given intraventricular infusions of either PPA … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 2 · 30 Jun 2008 · 12,613 accessesView PDFCite
Research ArticleOpen accessIn the abstractRed-Cell Trace Minerals in Children with AutismJoan Jory, Woody R. McGinnisAbnormalities in mineral-dependent antioxidant enzymes in children with autism raise interest in the determination of trace mineral status in this population. A cross sectional investigation of red cell mineral levels was carried out among 20 children with autism and 15 controls. Children with autism demonstrated significantly lower red cell selenium (p<0.0006) and higher molybdenum (p<0.01) than the controls. There was … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 2 · 30 Jun 2008 · 7,874 accessesView PDFCite