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Topic Review
Polysaccharides Against Gastric Cancer
Gastric cancer is a common type of cancer that poses a serious threat to human health. Polysaccharides are important functional phytochemicals, and research shows that polysaccharides have good anti-gastric cancer effects. Researchers collated all relevant literature published from 2000 to 2020 and found that more than 60 natural polysaccharides demonstrate anti-gastric cancer activity. At the present, the sources of these polysaccharides include fungi, algae, tea, Astragalus membranaceus, Caulis Dendrobii, and other foods and Chinese herbal medicines. By regulating various signaling pathways, including the PI3K/AKT, MAPK, Fas/FasL, Wnt/β-catenin, IGF-IR, and TGF-β signaling pathways, polysaccharides induce gastric cancer cell apoptosis, cause cell cycle arrest, and inhibit migration and invasion. In addition, polysaccharides can enhance the immune system and killing activity of immune cells in gastric cancer patients and rats.
  • 446
  • 20 Sep 2022
Topic Review
Potential Therapeutic Strategies of Metabolic-Associated Fatty Liver Disease
Metabolic-associated Fatty Liver Disease is one of the outstanding challenges in gastroenterology. The increasing incidence of the disease is undoubtedly connected with the ongoing obesity pandemic. The lack of specific symptoms in the early phases and the grave complications of the disease require an active approach to prompt diagnosis and treatment. Therapeutic lifestyle changes should be introduced in a great majority of patients; but, in many cases, the adherence is not satisfactory. There is a great need for an effective pharmacological therapy for Metabolic-Associated Fatty Liver Disease, especially before the onset of steatohepatitis.
  • 243
  • 12 Nov 2023
Topic Review
Pre-/Probiotics and Akkermansia Muciniphila
This entry highlights the following main aspects: the relationship between probiotics/gut microbes with the pathogenesis of MetS, the particular positive roles of Akkermansia muciniphila supplementation in the onset of MetS, and the interaction between dietary polyphenols (prebiotics) with gut microbiota.
  • 581
  • 13 May 2021
Topic Review
Pre-biotics, Probiotics and Post-Biotics
Gut microbiota (GM) is a complex ecosystem containing bacteria, viruses, fungi, and yeasts. It has several functions in the human body ranging from immunomodulation to metabolic. GM derangement is called dysbiosis and is involved in several host diseases. Pre-, probiotics, and symbiotics (PRE-PRO-SYMB) have been extensively developed and studied for GM re-modulation.
  • 545
  • 11 Jan 2022
Topic Review
Prebiotics and Probiotics in Non-Alcoholic Fatty Liver Disease
Alterations in the gut–liver axis and changes in the gut microbiome are among the risk factors for the pathogenesis of non-alcoholic fatty liver disease (NAFLD). These patients show increased bacterial overgrowth in the small intestine and impaired intestinal permeability. Therefore, therapeutic options such as probiotics or prebiotics have been investigated to modulate intestinal microbiota composition to improve NAFLD. Most in vivo and in vitro probiotic studies have focused on reducing hepatic fat accumulation. The beneficial effects of probiotics on NAFLD have been demonstrated in animal models, and the most widely used microorganisms are those of the Lactobacillus and Bifidobacterium genera. In animal models, probiotics help restore the intestinal microbiota and improve the integrity of the intestinal barrier. 
  • 299
  • 12 Oct 2023
Topic Review
Precision Medicine in Inflammatory Bowel Disease
Ulcerative colitis and Crohn’s disease are traditionally defined as the two main subtypes of inflammatory bowel disease. However, a more recent view considers inflammatory bowel diseases (IBDs) as a spectrum of heterogeneous phenotypes with consistent differences in clinical presentation and behaviors, likely explained by differences in underlying pathogenetic mechanisms. The etiology is still elusive, and the suggested pathogenesis is a complex interplay among genetic predisposition and abnormal immune response at the mucosal intestinal level, activated by only partially identified environmental triggers leading to altered intestinal permeability and impaired handling of gut microbiota. The undeniable continuous progress of medical therapy with more frequent shifts from traditional to more advanced modalities also underlines the actual unmet needs. 
  • 203
  • 27 Oct 2023
Topic Review
Primary and Acquired Resistance to Immune Checkpoint Inhibitors
Hepatocellular carcinoma (HCC) is the most common liver cancer and a relevant global health problem. Immune checkpoint inhibitors (ICIs) represent the most effective systemic treatment for HCC. However, due to primary resistance, approximately 40% of HCC patients do not achieve a disease control with ICIs. Moreover, a similar proportion will experience disease progression after an initial response caused by secondary resistance. 
  • 411
  • 18 Oct 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.
  • 428
  • 28 Jul 2023
Topic Review
Primary Sclerosing Cholangitis-Associated Cholangiocarcinoma
Cholangiocarcinoma (CCA) is the most common malignancy in patients with primary sclerosing cholangitis (PSC), accounting for 2–8% of cases and being the leading cause of death in these patients. The majority of PSC-associated CCAs (PSC-CCA) develop within the first few years after PSC diagnosis. Older age and male sex, as well as concomitant inflammatory bowel disease (IBD) or high-grade biliary stenosis, are some of the most relevant risk factors. PSC-CCA pathogenesis is characterised by peculiar molecular and genetic features, being a distinct disease from the novo CCA. There has been a significant push to develop innovative strategies for PSC-CCA early diagnosis and surveillance. 
  • 320
  • 23 Oct 2023
Topic Review
Probiotic-Produced Metabolites
Probiotic bacteria (PB) are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. Lactobacilli and Bifidobacteria are the most common probiotics, but the yeast Saccharomyces boulardii and Bacillus species are also widely known.
  • 711
  • 30 Nov 2021
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