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Book
Colonic motility : from bench side to bedside
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ISBN: 1615041516 1615041508 Year: 2010 Publisher: San Rafael, Calif. (1537 Fourth Street, San Rafael, CA 94901 USA) : Morgan & Claypool,

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Abstract

Three distinct types of contractions perform colonic motility functions. Rhythmic phasic contractions (RPCs) cause slow net distal propulsion with extensive mixing/turning over. Infrequently occurring giant migrating contractions (GMCs) produce mass movements. Tonic contractions aid RPCs in their motor function. The spatiotemporal patterns of these contractions differ markedly. The amplitude and distance of propagation of a GMC are several-fold larger than those of an RPC. The enteric neurons and smooth muscle cells are the core regulators of all three types of contractions. The regulation of contractions by these mechanisms is modifiable by extrinsic factors: CNS, autonomic neurons, hormones, inflammatory mediators, and stress mediators. Only the GMCs produce descending inhibition, which accommodates the large bolus being propelled without increasing muscle tone. The strong compression of the colon wall generates afferent signals that are below nociceptive threshold in healthy subjects. However, these signals become nociceptive; if the amplitudes of GMCs increase, afferent nerves become hypersensitive, or descending inhibition is impaired. The GMCs also provide the force for rapid propulsion of feces and descending inhibition to relax the internal anal sphincter during defecation. The dysregulation of GMCs is a major factor in colonic motility disorders: irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and diverticular disease (DD). Frequent mass movements by GMCs cause diarrhea in diarrhea predominant IBS, IBD, and DD, while a decrease in the frequency of GMCs causes constipation. The GMCs generate the afferent signals for intermittent short-lived episodes of abdominal cramping in these disorders. Epigenetic dysregulation due to adverse events in early life is one of the major factors in generating the symptoms of IBS in adulthood.


Book
Targeting the Microbiome for Disease Diagnosis and Therapy : New Frontiers for Personalized Medicine
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ISBN: 3036556117 3036556125 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Background: The gut microbiota is emerging as a pivotal player in the pathogenesis of many non-communicable diseases. Thus, it has been proposed as a new diagnostic and therapeutic target.Aim and scope: This Special Issue will focus on the microbiome as a potential target of new personalized therapies or diagnostic tools.History: In recent decades, the gut microbiome has been deeply investigated, and many studies have provided new information on the role of dysbiosis in many gastrointestinal and extra-gastrointestinal diseases. Recently, in addition to its phylogenetic characterization, new information has become available regarding the function of the gut microbiota, thanks to proteomic and metabolomic analyses.Cutting-edge research: The therapeutic modulation of the gut microbiota based on different strategies, including diet modification, antibiotics, prebiotics, probiotics, and, last but not least, fecal microbiota transplantation, has been tested for the treatment of various diseases. Recently, the possible applications and modalities of gut microbiota modulation have been increasingly expanding.We have collected original clinical or pre-clinical research papers and reviews focusing on the use of the microbiome for disease diagnosis, monitoring, or therapy and suggesting new possible gut microbiota-based approaches for personalized care.

Keywords

Medicine --- Graves–Basedow’s diseases --- Hashimoto’s thyroiditis --- autoimmunity --- gut microbiota --- irritable bowel syndrome --- microbiota --- microbiome --- food components --- nutrients --- hematopoietic stem cell transplantation --- fecal microbiota transplantation --- aGvHD --- antibiotic-resistant bacteria --- cystic fibrosis --- rabbits --- intestinal dysbiosis --- feces microbiome --- beta-blocker --- hemodialysis --- next-generation sequencing --- propensity score matching methods --- violin plots --- random sampling --- analytical reproducibility --- fecal matter transplantation --- data disease subtypes --- personalized medicine --- maltodextrin --- dip test --- gallstone disease --- 16S rDNA gene diversity --- blood biochemical characteristics --- mesothelioma --- 16S RNA sequencing --- species --- probiotics and gut disease --- probiotics and acute diverticulitis --- probiotics and diverticular disease --- probiotics mechanism of action --- IgA Nephropathy --- rifaximin --- α1KI-CD89Tg mice --- children --- intermittent hypoxemia --- obstructive sleep apnea --- tonsil --- weight status --- oral microbiota --- rheumatology diseases --- biomarkers --- artificial intelligence --- machine learning --- rheumatoid arthritis --- Sjogren’s syndrome --- systemic lupus erythematosus --- endometrial cancer --- endometrial microbiome --- gut microbiome --- dysbiosis --- estrogen metabolism --- estrobolome --- inflammation --- antitumour treatment --- prebiotics --- probiotics --- schizophrenia --- depression --- anxiety --- functional genes --- thymoma --- genera --- driver mutation --- cardiovascular diseases --- critically ill --- intestinal permeability --- recurrent cystitis --- n/a --- Graves-Basedow's diseases --- Hashimoto's thyroiditis --- Sjogren's syndrome

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