Download or read book Staphylococcal Infections Host and Pathogenic Factors written by Rajan P Adhikari and published by . This book was released on 2021-11-25 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although 30% of the healthy human population is colonized with various Staphylococcus species, some staphylococcal strains, referred to as opportunistic pathogens, can cause minor to life-threatening diseases. The pathogenicity of these bacteria depends on their virulence factors and the robustness of the regulatory networks expressing these virulence factors. Virulence factors of pathogenic Staphylococcus spp. consist of numerous toxins, enterotoxins (some of which act as superantigens), enzymes, and proteins (cytoplasmic, extracellular, and surface) that are regulated by two-component (TC) and quorum-sensing (QS) regulatory networks. To enter this niche, some other Staphylococcus species, such as Staphylococcus simulans, produce a potent endopeptidase called lysostaphin, which can inhibit the growth of pathogenic S. aureus. Some other Staphylococcus species produce autolysins and cationic peptides to win the intra- and inter-species competition. The outcome of this microbial invasion depends not only on pathogenic factors but also on the host's internal and external defense mechanisms, including a healthy skin microbiome. A healthy skin microbiome population can prevent colonization by other major pathogens. As normal host microflora, these commensals establish a complex relationship with the host as well as the surrounding microbial communities. This Special Issue of Microorganisms is focused on studies and recent advancements in our understanding of staphylococcal virulence mechanisms that enable Staphylococcus spp. either to successfully establish themselves as a colonizer or to overcome the host's defense system to cause infection along with our effort to make an anti-staphylococcal vaccine.
Download or read book Staphylococci in Human Disease written by Kent B. Crossley and published by John Wiley & Sons. This book was released on 2009-10-13 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Staphylococci remain the most important cause of hospital-acquiredinfections in the U.S. and MRSA has become the most common cause ofskin and soft tissue infection in many parts of the world. There is now a much greater understanding of the physiology andevolution of the staphylococci and this new edition reflects therapid advancements in knowledge about this pathogen and provides acomprehensive review from both clinical and basic scienceperspectives. The first section addresses the basic biology of thestaphylococci, their molecular genetics, host defenses and hostevasion, virulence determinants, mechanisms of antibioticresistance, and laboratory techniques. The second section dealswith epidemiology, and the third section provides an overview ofthe varied clinical manifestations of human staphylococcalinfections. The fourth section covers prevention and treatment ofthese often life-threatening infections. Written by experts from around the globe, this book is essentialreading for all clinicians and basic scientists studying thestaphylococci.
Download or read book Staphylococcus aureus Infection and Disease written by Allen Honeyman and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Staphylococcus aureus is now acknowledged as being the most important bacterial pathogen of humans. It usually produces localized disease but can be rapidly invasive, spreading through the tissues, invading bone, and seeding the bloodstream to produce a fulminant picture of septic shock, disseminated intravascular coagulation, and rapid death. Moreover, most strains of staph infections are becoming resistant to most antibiotics, thus posing a significant problem for hospitals and health care facilities. This book, a volume in the Infectious Agents and Pathogenesis series, presents chapters by the major researchers in the field.
Download or read book Staphylococcal Infections written by and published by BoD – Books on Demand. This book was released on 2023-02-22 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of staphylococci has a long way to go, due to the great significance both for humans and for dairy or companion animals of their large number of virulence factors. Their resistance to antibiotics makes these microorganisms become highly pathogenic species that can cause infections ranging from mild to fatal. Staphylococci, especially S. aureus and strains resistant to methicillin (MRSA), are among the most studied microorganisms worldwide. This book covers recent advances in the study of staphylococci. The book is divided into four sections that cover four important events for the study and combat of staphylococci: colonization, epidemiology and pathogenesis, diagnosis, and new treatments. Staphylococci can present a broad spectrum of resistance to antibiotics, which is why their elimination has become difficult. The final section of the book is devoted to new compounds for the fight against staphylococci. We hope that the information contained in this book will be useful for the study and investigation of these medically important microorganisms.
Download or read book Frontiers in Staphylococcus aureus written by Shymaa Enany and published by BoD – Books on Demand. This book was released on 2017-03-08 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Staphylococcus was first recognized as a human pathogen in 1880 and was named for its grape cluster-like appearance. In 1884, Staphylococcus aureus was identified and named for its vibrant golden color, which was later found to be the result of golden toxin production. Here, experts examine in-depth patterns of S. aureus colonization and exposures in humans, mammals, and birds that have led to the development of various clinical diseases. The mode of transmission of S. aureus and different methods for its detection in different samples are defined. Conventional antibiotic options to treat this aggressive, multifaceted, and readily adaptable pathogen are becoming limited. Alternative, novel chemotherapeutics to target S. aureus are discussed in the pages within, including herbal medicines, bee products, and modes of delivery.
Download or read book Staphylococcus and Streptococcus written by Sahra Kırmusaoğlu and published by BoD – Books on Demand. This book was released on 2020-03-11 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Staphylococcus spp. and Streptococcus spp. have not only got pathogenic isolates, but also non-pathogenic isolates. Staphylococcus spp. and Streptococcus spp. that are Gram positive cocci are the main pathogens in several infections. Virulence factors such as usual and unusual surface proteins encoded by resistance genes are the main causes of pathogenesis. Multidrug-resistant pathogens that are the main causes of morbidity and mortality worldwide have the ability to synthesize a number of destructive enzymes encoded by resistance genes such as ?-lactamases. Resistant pathogens such as methicillin-resistant Staphylococcus aureus (MRSA), Streptococcus pneumoniae, Group A, and Group B Streptococcus have emerged throughout the world. To eliminate these resistant pathogens that cause untreatable, acute, and chronic infections, different new antimicrobials must be developed and used. The goal of this book is to provide the latest information about the above topics.
Download or read book Parasitism written by Claude Combes and published by University of Chicago Press. This book was released on 2001 with total page 743 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Parasitism, Claude Combes explores the fascinating adaptations parasites have developed through their intimate interactions with their hosts. He begins with the biology of parasites—their life cycles, habitats, and different types of associations with their hosts. Next he discusses genetic interactions between hosts and parasites, and he ends with a section on the community ecology of parasites and their role in the evolution of their hosts. Throughout the book Combes enlivens his discussion with a wealth of concrete examples of host-parasite interactions.
Download or read book The Staphylococci and staphylococcal pathogenesis written by David Heinrichs and published by Frontiers E-books. This book was released on with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Members of the genus Staphylococcus play important roles in disease causation in humans and animals. Over the past decade, the completed sequencing of many staphylococcal genomes has contributed to a surge in the number of publications, which have promoted a tremendous advance in our knowledge of these important pathogens. Significant developments include the emergence of new and highly virulent strains of S. aureus, advances in tracking the evolution of human and animal adapted strains, a heightened appreciation of the role of mobile genetic elements in antibiotic resistance and pathogenesis, and important insights into staphylococcal physiology, immune evasion strategies, and cell surface proteins, as well as significant advances in vaccine development and therapeutics. This Research Topic will focus attention on the latest developments in these areas as they pertain to S. aureus and members of the coagulase-negative Staphylococci, and will also strive to identify areas of future development.
Download or read book Pet to Man Travelling Staphylococci written by Vincenzo Savini and published by Academic Press. This book was released on 2018-03-14 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pet-to-Man Travelling Staphylococci: A World in Progress explores Staphylococci, a dangerous pathogen that affects both humans and animals with a wide range of infection states. This bacteria can spread rapidly as a commensal organism in both humans and pets, and is an agent of disease. Staphylococci are potentially highly virulent pathogens which require urgent medical attention. In addition, Staphylococci remain a threat within hospital environments, where they can quickly spread across a patient population. This book explores the organisms' resistance to many compounds used to treat them, treatment failure and multidrug resistant staphylococci, amongst other related topics. Focuses not only on man and animal staphylococcal diseases, but on the role of shared household in man-to-pet (and vice versa) transmission Underlines the importance of professional exposure to mammals (i.e. veterinary and farm personnel) in the establishment of shared colonization's and related diseases Highlights the impact of shared staphylococci and virulence determinants in human and veterinary pathology Sheds light on the way staphylococci may be recognized in clinical laboratories
Download or read book The Staphylococci in Human Disease written by Kent B. Crossley and published by . This book was released on 1997 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers all staphylococcal infections, including hospital infections, toxic shock syndrome, infections in prosthetic devices and includes recent antimicrobial studies on resistance. (CPT).
Download or read book The Role of Staphylococcus Aureus Virulence Factor Regulation in Pathogenicity written by Steven Jerome Scott and published by . This book was released on 2000 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Medical Microbiology written by Yi-Wei Tang and published by Academic Press. This book was released on 2014-09-14 with total page 2214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The molecular age has brought about dramatic changes in medical microbiology, and great leaps in our understanding of the mechanisms of infectious disease. Molecular Medical Microbiology is the first book to synthesise the many new developments in both molecular and clinical research in a single comprehensive resource. This timely and authoritative three-volume work is an invaluable reference source of medical bacteriology. Comprising more than 100 chapters, organized into 17 major sections, the scope of this impressive work is wide-ranging. Written by experts in the field, chapters include cutting-edge information, and clinical overviews for each major bacterial group, in addition to the latest updates on vaccine development, molecular technology and diagnostic technology. Topics covered include bacterial structure, cell function, and genetics; mechanisms of pathogenesis and prevention; antibacterial agents; and infections ranging from gastrointestinal to urinary tract, centrtal nervous system, respiratory tract, and more. - The first comprehensive and accessible reference on molecular medical microbiology - Full color presentation througout - In-depth discussion of individual pathogenic bacteria in a system-oriented approach - Includes a clinical overview for each major bacterial group - Presents the latest information on vaccine development, molecular technology, and diagnostic technology - More than 100 chapters covering all major groups of bacteria - Written by an international panel of authors who are experts in their respective disciplines
Download or read book Staphylococcus aureus written by Fabio Bagnoli and published by Springer. This book was released on 2018-01-24 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers a comprehensive overview of basic and applied aspects of Staphylococcus aureus, which is one of the most important human pathogens. It includes sixteen chapters that address the microbiology and immunology of S. aureus, the pathology of its key manifestations, and the current standard of care. Further, it reviews cutting-edge advances in alternative therapeutic and prophylactic approaches to antibiotics. All chapters were written by respected experts in the field – presenting recent findings on a diverse range of aspects, they are nonetheless interlinked. As such, the book is a must-read for all researchers, clinicians and technicians engaged in basic or applied science work involving S. aureus.
Download or read book Biofilm formation by staphylococci and streptococci Structural functional and regulatory aspects and implications for pathogenesis written by Joan A. Geoghegan and published by Frontiers Media SA. This book was released on 2015-06-25 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Members of the genus Staphylococcus and Streptococcus are the causative agnets of many human and animal diseases. Over the past decade the complete sequencing of many staphylococcal and streptococcal genomes has promoted a significant advance in our knowledge of these important pathogens. The pathogenicity of these bacteria is due to the expression of a large variety of virulence factors. Such determinants, which are cell wall-associated and secreted proteins, include adhesins that confer to the pathogen the ability to attach to extracellular matrix/plasma and host cell surfaces, proteins that contribute to host cell invasion and intracellular survival and soluble factors that decrease phagocytosis and modulate the immune response. Furthermore, these Gram-positive cocci in many natural environments (heart valve, lung, oral cavity, throat) and infections on implanted devices live in matrix-encased groups known as biofilms. Biofilms are specialized bacterial communities with high order organization analogous to that of a tissue in multicellular organism that adhere to abiotic or biological substrata and produce an exopolymeric matrix composed of polysaccarides, proteins, DNA or combination thereof. Bacteria within a biofilm persist in adverse conditions, show resistance to killing by antibiotics and to host immune defences and are difficult to eradicate and treat clinically. Therefore, understanding the mechanisms of biofilm development will allow us to effectively combat staphylococcal/streptococcal biofilm-based infections. This Research Topic will focus on the molecular components involved in biofilm formation by staphylococci and streptococci, the role they play in the development, maturation and dispersal of biofilm and on the regulatory aspects of such complex processes. The implication for the pathogenesis of infective diseases and potential therapeutic strategies against biofilm-based infections will be also discussed. The articles will highlight both the recent advances and future challenges inherent in this rapidly evolving area.
Download or read book Staphylococcus written by Greg A. Somerville and published by Caister Academic Press Limited. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the twenty first century, the bacterium Staphylococcus aureus continues to be a global threat to human and animal health. There is currently no vaccine for preventing S. aureus infections and the bacterium has developed resistance to many, if not most, antibiotics, hence the therapeutic options are rapidly disappearing. The genetic and physiological flexibility that allows this commensal bacterium to become a powerful pathogen and elucidating the myriad of mechanisms it employs to avoid the host and/or antimicrobials are important areas of research. This book brings together respected S. aureus experts from around the world to provide a timely overview of staphylococcal research. Topics covered include: historical background; medical significance in humans and animals; genetic variation; virulence factors; metabolism and physiology; physiological proteomics; cell wall assembly and physiology; transition metal ion homeostasis; molecular strategies of antibiotic resistance; genetic regulation; and immune response. Essential reading for scientists working with staphylococci. This text is an excellent introduction for entry level scientists, as well as those seeking a deeper understanding of this critically important bacterial pathogen.
Download or read book Gram positive Pathogens written by Vincent A. Fischetti and published by . This book was released on 2000 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the only single volume to deal with all aspects of gram–positive pathogens. It addresses the mechanisms of gram–positive bacterial pathogenicity, including the current knowledge on gram–positive structure and mechanisms of antibiotic resistance. Emphasizing streptococci, staphylococci, listeria, and spore–forming pathogens, Gram–Positive Pathogens includes chapters written by many of the leading researchers in these areas. The chapters systematically dissect these organisms biologically, genetically, and immunologically in an attempt to understand the strategies used by these bacteria to cause human disease.
