Pathogenic mechanisms
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They can survive in a highly competitive microbial environment. Bacteriocins attack their targeted bacterial cells through different mechanisms. Understanding different mechanisms that induced cell death will enable researchers to develop methodologies to limit this life-threatening problem.
10p mudbound 10-12-2021 12 1 Download
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Document presentation of content: Introduction and epidemiologic features, causative agents and pathogenic mechanisms, clinical manifestations and diagnosis, treatment options and prevention, clinical practice
24p vovanvovan2013 13-05-2016 43 2 Download
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Host species specificity of the polyomaviruses simian virus 40 (SV40) and mouse polyomavirus (PyV) has been shown to be determined by the host DNA polymerase a-primase complex involved in the initiation of both viral and host DNA replication. Here we demonstrate that DNA repli-cation of the related human pathogenic polyomavirus JC virus (JCV) can be supportedin vitro by DNA polymerase a-primase of either human or murine origin indicating that the mechanism of its strict species specificity differs from that of SV40 and PyV.
8p fptmusic 16-04-2013 39 3 Download
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Transmissible spongiform encephalopathies (TSE) are fatal neuro-degenerative diseases of humans and animals. The underlying infectious agent, the prion, accumulates not only in the central ner-vous system (CNS) but also in secondary lymphoid organs. I will revisit the role of the immune system in peripheral prion pathogen-esis, while focusing on the mechanisms by which extraneural and extralymphatic prion infectivity develops.
64p fptmusic 11-04-2013 35 3 Download
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Trichodermaspecies have been investigated as biological control agents for over 70 years owing to their ability to antagonize plant pathogenic fungi. Mycoparasitism, one of the main mechanisms involved in the antagonistic activity ofTrichodermastrains, depends on the secretion of complex mix-tures of hydrolytic enzymes able to degrade the host cell wall. The antifun-gal activity of an a-1,3-glucanase (EC 3.2.1.59, enzymes able to degrade a-1,3-glucans and also named mutanases) has been described in T. harzia-num and its role in mycoparasitic processes has been suggested....
0p awards 05-04-2013 42 3 Download
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Homocysteine (Hcy) is anonprotein-forming sulphur amino acid that plays an important role in remethylation and trans-sulphuration processes. In recent years, it has been suggested that increased levels of plasma Hcy may play a role in the pathogenesis of various diseases, particularly at the cardiovascular level. The pathogenic mechanism of hyperhomocysteinemia, however, has not been clarified.
6p dell39 03-04-2013 52 2 Download
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The interaction of proteinase inhibitors produced, in most cases, by host organisms and the invasive proteinases of pathogens or parasites or the dietary proteinases of predators, results in an evolutionary ‘arms race’ of rapid and ongoing change in both interacting proteins.
13p dell39 27-03-2013 42 4 Download
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After the successful cloning of the first gene for a polyglutamine disease in 1991, the expanded polyglutamine tract in the nine polyglutamine disease proteins became an obvious therapeutic target. Early hypotheses were that misfolded, precipitated protein could be a universal pathogenic mechanism. However, new data are accumulating on Huntington’s disease and other polyglutamine diseases that appear to contradict the toxic aggregate hypothesis.
11p galaxyss3 07-03-2013 50 4 Download
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Phagocytosis represents a mechanism used by macrophages to remove pathogens and cellular debris. Recent evidence suggests that phagocytosis is stimulated under specific conditions of stress, such as extracellular pres-sure and hypoxia.
14p viettel02 22-02-2013 16 2 Download
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The paramyxovirus family contains established human pathogens such as the measles virus and human respiratory syncytial virus, as well as emerg-ing pathogens including the Hendra and Nipah viruses and the recently identified human metapneumovirus.
11p viettel02 20-02-2013 25 2 Download
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Mycobacterium tuberculosisH37Rv is a highly successful pathogen and its success fully relies on its ability to utilize macrophages for its replication and, more importantly, the macrophage should remain viable to host the Mycobacterium.
12p mobifone23 21-01-2013 41 3 Download
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Autophagy is an evolutionarily conserved lysosomal pathway used to degrade and recycle long-lived proteins and cytoplasmic organelles. This homeostatic ability makes autophagy an important pro-survival mechanism in response to several stresses, such as nutrient starvation, hypoxia, dam-aged mitochondria, protein aggregation and pathogens.
8p mobifone23 18-01-2013 61 3 Download
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Pseudomonasexotoxin A (PE) is a highly toxic protein secreted by the opportunistic pathogen Pseudomonas aeruginosa. The modular structure and corresponding mechanism of action of PE make it amenable to exten-sive modifications that can redirect its potent cytotoxicity from disease to a therapeutic function.
18p cosis54 04-01-2013 36 3 Download
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Genetic transformation of cotton with a harpin-encoding gene hpaXoo confers an enhanced defense response against different pathogens through a priming mechanism
14p panasonic06 25-12-2011 56 3 Download
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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Genome sequence of the necrotrophic plant pathogen Pythium ultimum reveals original pathogenicity mechanisms and effector repertoire...
0p thulanh22 20-11-2011 42 3 Download
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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: The diversity of bacterial pathogenicity mechanisms...
3p thulanh19 09-11-2011 37 1 Download
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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài: "Lung epithelium as a sentinel and effector system in pneumonia – molecular mechanisms of pathogen...
17p toshiba13 21-10-2011 65 4 Download
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Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Pathogenic Mechanisms Shared between Psoriasis and Cardiovascular Disease...
6p thulanh9 07-10-2011 34 3 Download
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Harrison's Internal Medicine Chapter 129. Staphylococcal Infections Staphylococcal Infections: Introduction Staphylococcus aureus, the most virulent of the many staphylococcal species, has demonstrated its versatility by remaining a major cause of morbidity and mortality despite the availability of numerous effective antistaphylococcal antibiotics. S. aureus is a pluripotent pathogen, causing disease through both toxin-mediated and non-toxin-mediated mechanisms.
5p colgate_colgate 21-12-2010 85 3 Download
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Association of Virulence Mechanisms with Specific Meningococcal Infections Specific disease manifestations of meningococcal infections have specific virulence and pathogenic mechanisms, as described below for fulminant meningococcemia and meningitis. Fulminant Meningococcemia Purpura Fulminans Fulminant meningococcemia is perhaps the most rapidly lethal form of septic shock experienced by humans. It differs from most other forms of septic shock by the prominence of hemorrhagic skin lesions (petechiae, purpura; see Fig. 52-5) and the consistent development of DIC.
6p colgate_colgate 21-12-2010 75 4 Download