Molecular Basis of Stage Conversion in Apicomplexan Parasites PDF Download

Author: Maria E. Francia
Publisher: Frontiers Media SA
ISBN: 2889668436
Category : Science
Languages : en
Pages : 153

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Author: John M. Archibald
Publisher: Springer
ISBN: 9783319281476
Category : Science
Languages : en
Pages : 0

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Published in a modern, user-friendly format this fully revised and updated edition of The Handbook of Protoctista (1990) is the resource for those interested in the biology, diversity and evolution of eukaryotic microorganisms and their descendants, exclusive of animals, plants and fungi. With chapters written by leading researchers in the field, the content reflects the present state of knowledge of the cell and genome biology, evolutionary relationships and ecological/medical/economic importance each major group of protists, organized according to current protist systematics as informed by molecular phylogenetics and genomics.

Author: Alexandre Morrot
Publisher: Frontiers Media SA
ISBN: 2832553311
Category : Medical
Languages : en
Pages : 477

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The protozoa are the most ancient members of the animal kingdom and they have evolved the intracellular parasitism to ensure their survival strategies. Protozoan parasites that infect humans are extremely diverse among eukaryotes. They are responsible for many human diseases such as amebiasis, Chagas disease, malaria, toxoplasmosis, leishmaniasis and African sleeping sickness. The ability of protozoans to cause disease depends on the nature and number of infecting organisms, the route of infection, the virulence factors associated with the microorganism, and the strength of host defenses. This host-parasite interaction is also subject to constant change as the infection proceeds and can lead to a range of outcomes, from elimination of the pathogen to death of the host, depending on the states of latency and the extent of colonization that the protozoan achieves in the course of infection. Several species of parasitic protozoa harbor specialized virulence factors whose products can overcome the host´s immunity and promote their survival. These factors act at several different checkpoints of the host immune responses, from the first components of the innate immune response to the induction and maintenance of adaptive memory responses. Many protozoan species have evolved mechanisms that modulate and inhibit host sensors, microRNA circuits and signaling pathways that permit the host to detect infection. These factors can act, inter alia, by inhibiting the complement cascade, subverting phagocyte activation and impairing leukocyte migratory responses, so undermining the immune system thus facilitating the pathogen evasion and its continued persistence in the host. In this research topic we welcome the contribution of original research article as well as reviews on the field.

Author: Louis M. Weiss
Publisher: Academic Press
ISBN: 0123965365
Category : Science
Languages : en
Pages : 1109

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This 2e of Toxoplasma gondii reflects the significant advances in the field in the last 5 years, including new information on the genomics, epigenomics and proteomics of T. gondii as well as a new understanding of the population biology and genetic diversity of this organism. T. gondii remains the best model system for studying the entire Apicomplexa group of protozoans, which includes Malaria, making this new edition essential for a broad group of researchers and scientists. Toxoplasmosis is caused by a one-celled protozoan parasite known as T. gondii. The infection produces a wide range of clinical syndromes in humans, land and sea mammals, and various bird species. Most humans contract toxoplasmosis by eating contaminated, raw or undercooked meat (particularly pork), vegetables, or milk products; by coming into contact with the T. gondii eggs from cat feces; or by drinking contaminated water. The parasite damages the ocular and central nervous systems, causing behavioral and personality alterations as well as fatal necrotizing encephalitis. It is especially dangerous for the fetus of an infected pregnant woman and for individuals with compromised immune systems, such as HIV-infected patients. - Completely updated, the 2e presents recent advances driven by new information on the genetics and genomics of the pathogen - Provides the latest information concerning the epidemiology, diagnosis, treatment and prevention of toxoplasmosis - Offers a single-source reference for a wide range of scientists and physicians working with this pathogen, including parasitologists, cell and molecular biologists, veterinarians, neuroscientists, physicians, and food scientists

Author: Percy Cyril Claude Garnham
Publisher:
ISBN:
Category : Apicomplexa
Languages : en
Pages : 1234

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Author: Katja Becker
Publisher: John Wiley & Sons
ISBN: 3527633901
Category : Medical
Languages : en
Pages : 548

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This handbook is the first dealing with the discovery of drugs directed against apicomplexan parasites. Amongst others, this group of endoparasites includes the causative agents of Malaria, Toxoplasmosis, and Babesiosis, the latter occurring mainly in animals. Written by renowned scientific experts from academia and industry, the book focuses on currentdrug development approaches for all apicomplexan diseases making it appealing to a large audience, ranging from research labs in academia to the human and veterinarian pharmaceutical industry. This work is the second volume of the new book series 'Drug Discovery in Infectious Diseases', edited by Prof. Dr Paul M. Selzer.

Author: Dongyou Liu
Publisher: CRC Press
ISBN: 143981242X
Category : Medical
Languages : en
Pages : 899

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Book Description
Traditionally, laboratory identification of parasites has relied upon various phenotypic procedures that detect their morphological, biological, and immunological features. Because these procedures tend to be time-consuming and technically demanding, molecular methods based on nucleic acid amplification technologies have been increasingly utilized for rapid, sensitive, and specific characterization of parasites. The large number of original and modified molecular protocols that have been developed over the years creates a dilemma for those attempting to adopt the most appropriate protocol for streamlined identification and detection of human pathogenic organisms of interest. Part of a four-volume collection, Molecular Detection of Human Parasitic Pathogens provides a reliable and comprehensive resource on the molecular detection and identification of major human parasitic pathogens. This volume contains expert contributions from international scientists involved in human parasitic pathogen research and diagnosis. Following a similar format throughout, each chapter includes: A brief review on the classification, biology, epidemiology, clinical features, and diagnosis of an important pathogenic parasitic genus/group An outline of clinical sample collection and preparation procedures and a selection of representative stepwise molecular protocols A discussion on further research needs relating to improved diagnoses of major human parasitic pathogens This versatile reference on molecular detection and identification of major human parasitic pathogens is an indispensable tool for upcoming and experienced medical, veterinary, and industrial laboratory scientists engaged in parasite characterization. It is also suitable as a textbook for undergraduate and graduate students majoring in parasitology.

Author: William F. Martin
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110612410
Category : Science
Languages : en
Pages : 269

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Book Description
Mitochondria are sometimes called the powerhouses of eukaryotic cells, because mitochondria are the site of ATP synthesis in the cell. ATP is the universal energy currency, it provides the power that runs all other life processes. Humans need oxygen to survive because of ATP synthesis in mitochondria. The sugars from our diet are converted to carbon dioxide in mitochondria in a process that requires oxygen. Just like a fire needs oxygen to burn, our mitochondria need oxygen to make ATP. From textbooks and popular literature one can easily get the impression that all mitochondria require oxygen. But that is not the case. There are many groups of organismsm known that make ATP in mitochondria without the help of oxygen. They have preserved biochemical relicts from the early evolution of eukaryotic cells, which took place during times in Earth history when there was hardly any oxygen avaiable, certainly not enough to breathe. How the anaerobic forms of mitochondria work, in which organisms they occur, and how the eukaryotic anaerobes that possess them fit into the larger picture of rising atmospheric oxygen during Earth history are the topic of this book.

Author: Felipe Kierzenbaum
Publisher: Academic Press
ISBN: 0080924050
Category : Medical
Languages : en
Pages : 267

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Book Description
Featuring the work of several world authorities, this volume places primary emphasis on the mechanism of parasite produced changes in the immune response (i.e. immunosuppression). The text covers parasitic diseases on which the World Health Organization has aggressively promoted research through its Program on Research and Training In Tropical Diseases. Chapters cover parasitic diseases such as malaria, American trypanosomiasis (Chagas' disease), African trypanosomiasis (sleeping sickness), leishmaniasis, schistosomiasis and onchocerciasis. Also included are discussions of toxoplasmosis and amebiasis. The material is drawn from the body of literature that has been rapidly accumulating for the last 15 years. An important feature of this text is that the contributors first outline existing knowledge about the immunology of each infection, thereby enabling the reader to more easily appreciate why and how the immunological alterations that accompany a disease are important, and then, to review the postulated mechanisms for such alterations. Consequently, the impact that each parasitic infection has on the immune system is always described in the "heart" of each chapter rather than at the beginning.

Author: Derek Roff
Publisher: Springer Science & Business Media
ISBN: 9780412023910
Category : Science
Languages : en
Pages : 554

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There are many different types of organisms in the world: they differ in size, physiology, appearance, and life history. The challenge for evolutionary biology is to explain how such diversity arises. The Evolution of Life Histories does this by showing that natural selection is the principal underlying force molding life history variation. The book describes in particular the ways in which variation can be analyzed and predicted. It covers both the genetic and optimization approaches to life history analysis and gives an overview of the general framework of life history theory and the mathematical tools by which predictions can be made and tested. Factors affecting the age schedule of birth and death and the costs of reproduction are discussed. The Evolution of Life Histories concentrates on those theoretical developments that have been tested experimentally. It will interest both students and professionals in evolution, evolutionary ecology, mathematical and theoretical biology, and zoology and entomology.