This work sheds new light on the interplay between the gut, gut microbiota, and host physiological processes in production animals. The gut microbiome shapes health and susceptibility to disease and has become a leading area of research in the animal sciences. Gut health encompasses a number of physiological and functional features. Nutrient digestion and absorption, host metabolism and energy generation, a stable microbiome, mucus layer development, barrier function, and mucosal immune responses; all of which are required to interact to make an animal perform physiologically and according to its greatest genetic potential. This carefully presented book broadens our vision, approach and results on gut health and the ability to regulate animal production. Understanding the chemistry of microbiomes has broad implications, including providing functional annotations for the microbial genomes, insights into the chemical languages that link microbes to each other and to their host, and translational implications for precision veterinary medicine, environmental health, and sustainable animal agriculture and welfare. Experts working in microbiome research, host immunity, and animal production, veterinarians and researchers in livestock science will understand the great importance of this volume.

This book provides an overview of bidirectional communication between gut-microbiome-brain, pathways, nutrients, and metabolites that are involved in microbiota gut-brain axis (MGBA) interactions. Further it reviews the relevance of this axis in the neurological disorders and potential therapeutic interventions, involving gut microbiome or probiotics and prebiotics which can ameliorate the neurological disorders. The book examines the role of gut microbiota in the establishment and hemostasis of innate immune response and explores the possibility of development of microbiome-targeted therapeutic interventions. Notably, the book discusses the role of the gut microbiota and immune system on the maintenance of brain functions and the development of neurological disorders. It also highlights the recent advances in improving neurological diseases by phytochemicals, prebiotics and probiotics. This book is useful for researchers working in neuropharmacology, Clinical Research, toxicology, neurodegeneration, and stroke biology.

[Increasing evidence suggests that microbiota and especially the gut microbiota (the microbes inhabiting the gut including bacteria, archaea, viruses, and fungi) plays a key role in human physiology and pathology. Recent findings indicate how dysbiosis—an imbalance in the composition and organization of microbial populations—could severely impact the development of different medical conditions (from metabolic to mood disorders), providing new insights into the comprehension of diverse diseases, such as IBD, obesity, asthma, autism, stroke, diabetes, and cancer. Given that microbial cells in the gut outnumber host cells, microbiota influences human physiology both functionally and structurally. Microbial metabolites bridge various—even distant—areas of the organism by way of the immune and hormone system. For instance, it is now clear that the mutual interaction between the gastrointestinal tract and the brain (gut–brain axis), often involves gut microbiota, indicating that the crosstalk between the organism and its microbial residents represents a fundamental aspect of both the establishment and maintenance of healthy conditions. Moreover, it is crucial to recognize that beyond the intestinal tract, microbiota populates other host organs and tissues (e.g., skin and oral mucosa). We have edited this eBook with the aim of publishing manuscripts focusing on the impact of microbiota in the development of different diseases and their associated treatments.]

This book covers current trends in the investigation of GI microbiota. It examines the relationship between the microbiota and the immune system from a variety of angles.

Trillions of commensal microbes reside on and inside the human body, including the intestinal and respiratory tracts, which encompass various microbial taxa, such as bacteria, fungi, archea and viruses. The close proximity of microbes with the host provides an opportunity to continually interact with each other. Advances in research approaches, including high-throughput sequencing, have allowed us to study host and commensal microbes at the genetic and functional levels. Recent studies suggest that commensal microbes play a crucial role in the development of the host’s immune system and induce innate and adaptive immune responses against pathogens. It is also becoming apparent that the gut commensals are endowed with a capacity to alter immune responses in organs beyond the intestine, such as the lungs, highlighting the significance of the gut commensals in controlling systemic immunity. On the other hand, the host’s immune system possesses the ability to shape the repertoire of commensal microbes and contribute to the establishment of beneficial relationships with them. A better understanding of host-commensal interactions will be important for designing effective vaccines and therapeutics against pathogens. This Research Topic sheds light on our current understanding of the interplay between the host’s immune system and commensal microbes and how this interplay can be exploited for prophylactic and/or therapeutic strategies against pathogens.

This book comprehensively reviews the immunology of fish--their health, interactions between them and their pathogens, and the impact of both endogenous and environmental changes on these interactions. Leading authorities provide an essential foundation for the understanding of fish immunology and fish health. As fish are increasingly used as model systems for vertebrate immune systems, The Fish Immune System will be a crucial reference. The only comprehensive, single-volume reference on the fish immune system Contributions from an international team of experts Useful to researchers interested in fish health as well as professionals managing fish hatcheries, aquariums, and other facilities that must maintain healthy fish