Your browser does not fully support modern features. Please upgrade for a smoother experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Epidemiology and Pathogenesis of Inflammatory Bowel Disease
Ulcerative colitis (UC) and Crohn's disease (CD) have been recognized as occidentalized diseases, due to their higher rates of incidence and prevalence in occidental countries. CD mostly presents between 20 and 30 years, whereas UC mostly presents between 30 and 40 years, as well as from 60 to 70 years. 
  • 1.0K
  • 20 Dec 2022
Topic Review
Primary Liver Cancers
Primary liver cancer is the third most common cause of cancer-related deaths worldwide. Risk factors for primary liver cancer include chronic viral hepatitis B and C infections, alcohol abuse, non-alcoholic fatty liver disease, and obesity. Surgical resection and/or transplantation is the mainstay treatment for candidates with primary liver tumors. However, minimally invasive, image-guided locoregional therapies have become an integral part of liver cancer treatment and management, depending on staging.
  • 1.0K
  • 28 Jul 2023
Topic Review
Gastrointestinal Disorders Involving ICCs and the ENS
The enteric nervous system (ENS) is organized into two plexuses—submucosal and myenteric—which regulate smooth muscle contraction, secretion, and blood flow along the gastrointestinal tract under the influence of the rest of the autonomic nervous system (ANS). Interstitial cells of Cajal (ICCs) are mainly located in the submucosa between the two muscle layers and at the intramuscular level. They communicate with neurons of the enteric nerve plexuses and smooth muscle fibers and generate slow waves that contribute to the control of gastrointestinal motility. They are also involved in enteric neurotransmission and exhibit mechanoreceptor activity. A close relationship appears to exist between oxidative stress and gastrointestinal diseases, in which ICCs can play a prominent role. Thus, gastrointestinal motility disorders in patients with neurological diseases may have a common ENS and central nervous system (CNS) nexus. In fact, the deleterious effects of free radicals could affect the fine interactions between ICCs and the ENS, as well as between the ENS and the CNS.
  • 1.0K
  • 25 Apr 2023
Topic Review
Pancreatitis in Pregnancy
Acute and chronic pancreatitis, until observed incidentally in pregnancy. Particularly severe complications for the mother and fetus may be a consequence of acute pancreatitis. Therefore, it is important to know more about the diagnostic and therapeutic possibilities of pancreatic diseases in the course of pregnancy.
  • 1.0K
  • 23 Dec 2022
Topic Review
MAFLD and Chronic Viral Hepatitis
Metabolic dysfunction-associated fatty liver disease (MAFLD) has now affected nearly one-third of the global population and has become the number one cause of chronic liver disease in the world because of the obesity pandemic. Chronic hepatitis resulting from hepatitis B virus (HBV) and hepatitis C virus (HCV) remain significant challenges to liver health even in the 21st century. The co-existence of MAFLD and chronic viral hepatitis can markedly alter the disease course of individual diseases and can complicate the management of each of these disorders. A thorough understanding of the pathobiological interactions between MAFLD and these two chronic viral infections is crucial for appropriately managing these patients.
  • 1.0K
  • 30 Jan 2024
Topic Review
Irritable Bowel Syndrome
IBS is a widespread functional GI disorder that determines symptoms such as chronic abdominal pain, flatulence, bloating, and altered bowel habits. Depending on diagnostic standards and the regional area, this pathology has a prevalence between 5% and 20% in adults. IBS can occur among patients of any age, even among children, more precisely 13.5% worldwide, and adolescents, rarely manifesting in older patients. IBS has a slightly higher prevalence among women than males and between 18 and 39 years of age.
  • 1.0K
  • 15 Jun 2023
Topic Review
FOXO3, Autophagy and Sorafenib Resistance in Human Hepatocarcinoma
Early development of resistance to sorafenib accounts for the poor prognosis of advanced hepatocarcinoma (HCC). Autophagy, a double-edge autodegradative and recycling process, has been related to the modulation of drug sensitivity in cancer cells. The transcription factor forkhead box O3 (FOXO3) has been associated with the pathogenesis of HCC, but the involvement of FOXO3 on autophagy-related sorafenib resistance in HCC needs to be further investigated. A recent research verified that HCC cells are able to surpass sorafenib effects during chemoresistance acquisition via the upregulation of FOXO3 and the subsequent induction of a pro-survival autophagy. Hence, FOXO3-associated autophagy could constitute a novel therapeutic target in the advanced HCC landscape.
  • 1.0K
  • 26 Nov 2021
Topic Review
Gut Virome in Childhood Diseases
Mammals are colonized by numerous microbes, collectively referred to as the microbiota. The microbiota forms a stable symbiotic relationship with the host and is indispensable for health maintenance. Although the eubacteria are the best characterized component of the human gut microbiota, it also includes commensal populations of viruses, fungi, multicellular parasites and archaea. Evidence highlights that the virome, consisting in DNA and RNA eukaryotic viruses, bacterial viruses (i.e., bacteriophages) and archaeal viruses, exerts a fundamental role in the host wellbeing. Indeed, alterations of the adult virome have been linked to increased disease susceptibility, suggesting that maintaining or restoring a structurally and functionally correct composition of the virome might represent in the near future a promising approach to prevent or cure different human diseases. Although the knowledge of childhood virome is currently very limited, modifications of the virome composition have been associated with several diseases during the pediatric age, such as inflammatory bowel disease, type 1 diabetes, malnutrition, diarrhea and celiac disease. 
  • 1.0K
  • 14 May 2021
Topic Review
The Role of EPH/Ephrin System in the Pancreas
Pancreatic ductal adenocarcinoma (PDAC) is a major concern for health care systems worldwide, since its mortality remains unaltered despite the surge in cutting-edge science. The EPH/ephrin signaling system was first investigated in the 1980s. EPH/ephrins have been shown to exert bidirectional signaling and cell-to-cell communication, influencing cellular morphology, adhesion, migration and invasion. 
  • 1.0K
  • 04 May 2023
Topic Review
Insulin Resistance and NAFLD development
Insulin resistance (IR) is a condition in which insulin action is altered. In metabolic terms, IR represents the inability of a fixed amount of insulin to metabolize a known amount of glucose in an individual as compared to the general population. 
  • 1.0K
  • 12 Oct 2021
Topic Review
TGR5
Takeda G protein-coupled receptor (TGR5) is a metabolic regulator, which is also involved in inflammatory responses. TGR5 belongs to the G protein-coupled receptor (GPCR) superfamily.
  • 1.0K
  • 02 Aug 2021
Topic Review
Interactions between Nanoparticles and Intestine
The use of nanoparticles (NPs) has surely grown in recent years due to their versatility, with a spectrum of applications that range from nanomedicine to the food industry. Recent research focuses on the development of NPs for the oral administration route rather than the intravenous one, placing the interactions between NPs and the intestine at the centre of the attention. This allows the NPs functionalization to exploit the different characteristics of the digestive tract, such as the different pH, the intestinal mucus layer, or the intestinal absorption capacity. On the other hand, these same characteristics can represent a problem for their complexity, also considering the potential interactions with the food matrix or the microbiota.
  • 1.0K
  • 06 May 2022
Topic Review
Microbiota-derived Short-Chain Fatty Acids and Obesity
Microbiota-derived Short-Chain Fatty Acids (SCFAs), primarily acetate, propionate and butyrate, are metabolites produced by gut microbiota via dietary non-digestible carbohydrates (CHO) fermentation. Maternal very low-calorie ketogenic diet (VLCKD) during pregnancy and lactation stimulates the growth of diverse species of SCFA-producing bacteria, which may induce epigenetic changes in infant obese gene expression and modulate adipose tissue inflammation in obesity.
  • 1.0K
  • 29 Oct 2021
Topic Review
Human Pluripotent Stem Cell-Based Models for Hirschsprung Disease
Hirschsprung disease (HSCR) is a complex congenital disorder caused by defects in the development of the enteric nervous system (ENS). It is attributed to failures of the enteric neural crest stem cells (ENCCs) to proliferate, differentiate and/or migrate, leading to the absence of enteric neurons in the distal colon, resulting in colonic motility dysfunction. Due to the oligogenic nature of the disease, some HSCR conditions could not be phenocopied in animal models. Building the patient-based disease model using human induced pluripotent stem cells (hPSC) has opened up a new opportunity to untangle the unknowns of the disease. The expanding armamentarium of hPSC-based therapies provides needed new tools for developing cell-replacement therapy for HSCR. 
  • 1.0K
  • 09 Nov 2022
Topic Review
Role of Interleukins in Hepatitis B Virus Infection
Hepatitis B virus (HBV) infection is a worldwide medical issue with significant morbidity and mortality, as it is the main cause of chronic liver disease and hepatocellular carcinoma (HCC). Both innate and adaptive immune responses play a key role in HBV replication and suppression. The pathophysiological function of interleukins (IL) in the natural course of HBV has gained much attention as a result of the broad use of anti-interleukin agents for a variety of autoimmune diseases and the accompanying risk of HBV reactivation.
  • 1.0K
  • 05 Dec 2023
Topic Review
Diagnostic Methods for Evaluation of Gastric Motility
Gastric motility abnormalities are common in patients with disorders of gut-brain interaction such as functional dyspepsia and gastroparesis. Accurate assessment of the gastric motility in these common disorders can help understand the underlying pathophysiology and guide effective treatment. A variety of clinically applicable diagnostic methods have been developed to objectively evaluate for presence of gastric dysmotility, including tests of gastric accommodation, antroduodenal motility, gastric emptying, and gastric myoelectrical activity. The advances in clinically available diagnostic methods for evaluation of gastric motility are discussed and the advantages and disadvantages of each test are described.
  • 1.0K
  • 15 Mar 2023
Topic Review
Relationship between Gut Microbiota and SARS-CoV-2 Infection
Gut microbiota is increasingly recognized to play a pivotal role in various human physiological functions and diseases. Amidst the COVID-19 pandemic, research has suggested that dysbiosis of the gut microbiota is also involved in the development and severity of COVID-19 symptoms by regulating SARS-CoV-2 entry and modulating inflammation.
  • 1.0K
  • 17 Feb 2023
Topic Review
Metabolism-Associated Epigenetic and Immunoepigenetic Re-programming in Liver Cancer
Metabolic reprogramming and epigenetic changes have been characterized as hallmarks of liver cancer. Metabolic intermediates serve as crucial substrates for various epigenetic modulations, from post-translational modification of histones to DNA methylation. In turn, epigenetic changes can alter the expression of metabolic genes supporting on the one hand, the increased energetic demand of cancer cells and, on the other hand, influence the activity of tumor-associated immune cell populations. In this review, we will illustrate the most recent findings about metabolic reprogramming in liver cancer. We will focus on the metabolic changes characterizing the tumor microenvironment and on how these alterations impact on epigenetic mechanisms involved in the malignant progression. Furthermore, we will report our current knowledge about the influence of cancer-specific metabolites on epigenetic reprogramming of immune cells. Finally, we will review the current strategies to target metabolic and epigenetic pathways and their therapeutic potential in liver cancer, alone or in combinatorial approaches.
  • 1.0K
  • 13 Dec 2021
Topic Review
Gastric Hyperplastic Polyps
Gastric hyperplastic polyps (GHP) are frequently found to be benign polyps and have been considered to have a low carcinogenic potential. The characteristics of the hyperplastic polyp-associated gastric cancer (HPAGC) remain unclear. 
  • 998
  • 02 Dec 2021
Topic Review
New Definition of Fatty Liver
Recently, the classification of fatty liver and the definition for non-alcoholic fatty liver disease (NAFLD) have been challenged. Herein, this research aims to evaluate the burden of hepatic fibrosis in the missed and added populations following the proposal of the new definition of metabolic dysfunction-associated fatty liver (MAFLD) in a health check-up cohort.
  • 997
  • 29 Oct 2021
  • Page
  • of
  • 33
Featured Entry Collections
>>

Featured Reprints

>>
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of Medieval Royal Iconography
Academic Video Service
Feedback