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Topic Review
Biography
Topic Review
Management of Hyponatremia in Cirrhosis
Hyponatremia is a strong predictor of mortality and is also associated with an increased probability of hepatorenal syndrome, disturbance of consciousness, infections, and unfavorable post-transplant outcomes. In the management of hyponatremia, it is crucial to distinguish between hypovolemic and hypervolemic hyponatremia. The treatment of hypervolemic hyponatremia should be started only in symptomatic patients. The cessation of the treatment with traditional diuretics and fluid restriction may prevent further decrease in natremia. Pharmacological treatment is directed towards cirrhosis itself, precipitating factor, or hyponatremia directly. Currently, only albumin infusions can be recommended routinely. Other possibilities, such as vaptans, splanchnic vasoconstrictors, niravoline, or osmotic diuretics, are restricted to specific use cases (e.g., imminent liver transplantation) or need more research to determine their efficacy.
196
16 Oct 2023
Topic Review
Epithelial–Mesenchymal Transition in Colorectal Cancer
The epithelial–mesenchymal transition (EMT) is a cellular reprogramming process that occurs during embryonic development and adult tissue homeostasis. This process involves epithelial cells acquiring a mesenchymal phenotype. Epithelial–mesenchymal plasticity (EMP) has become a hot issue in colorectal cancer (CRC) because strong inducers of EMT (such as transforming growth factor β, TGF-β) can initiate EMT and regulate metastasis, micro-environment, and immune system resistance in CRC.
390
16 Oct 2023
Topic Review
COVID-19 Pandemic on Psychological Status in IBD Patients
The coronavirus disease (COVID-19) pandemic has had a considerable impact on the global healthcare system and potentially the clinical course of patients with inflammatory bowel disease (IBD). Although IBD is a chronic disease, its therapy (except steroid therapy) does not increase the risk of contracting or aggravating COVID-19.
229
16 Oct 2023
Topic Review
Biomarkers in Inflammatory Bowel Disease
The role of biomarkers in the diagnosis of inflammatory bowel disease is not fully characterized. C-reactive protein has a short half-life and elevates quickly after the onset of an inflammatory process; the performance is better in Crohn’s disease than in ulcerative colitis. Erythrocyte sedimentation rate is easy to determine, widely available, and cheap, but the long half-life, the influence of age, anemia, smoking, and drugs limit its usefulness. Fecal markers have good specificity, but suboptimal accuracy. Microbial antibodies and novel immunological markers show promise but need further evidence before entering clinical practice. Proteomic methods could represent the dawn of a new era of stool protein/peptide biomarker panels able to select patients at risk of inflammatory bowel disease.
241
16 Oct 2023
Topic Review
Therapeutic Approaches for Gastric Neuroendocrine Neoplasms
Gastric neuroendocrine neoplasms (gNENs) represent rare but increasingly recognized tumors. They are distinguished into three main clinical types (type-1, type-2, and type-3) according to gastrin level and at histological evaluation in well-differentiated G1, G2, or G3 lesions, as well as poorly-differentiated lesions.
389
13 Oct 2023
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.
297
12 Oct 2023
Topic Review
Multi-Omics in Inflammatory Bowel Disease
The notion and importance of omes, omics and multi-omics in both health and complex diseases like inflammatory bowel disease (IBD) is introduced, followed by a discussion of the various omics believed to be relevant to IBD pathogenesis, and how multi-omics “big data” can generate new insights translatable into useful clinical tools in IBD such as biomarker identification, prediction of remission and relapse, response to therapy, and precision medicine.
235
12 Oct 2023
Topic Review
Visceral Hypersensitivity Association with Irritable Bowel Syndrome
Irritable bowel syndrome (IBS) is a severe problem in the health service. It is estimated that it accounts for 3% of all medical consultations. Moreover, this diagnosis is made in the case of about 40% of all outpatient gastroenterological referrals. The visceral stimuli from the digestive tract are transmitted via afferent nerves through the spinal cord to the brain, where they are felt as pain. The overreaction observed in the brain of irritable bowel syndrome (IBS) patients may be due to increased peripheral sensitivity to stimuli from the gastrointestinal tract.
257
11 Oct 2023
Topic Review
Microbiota Changes in Irritable Bowel Syndrome Subtypes
Irritable bowel syndrome (IBS) is a prevalent functional gastrointestinal disorder characterized by chronic abdominal pain and altered bowel habits. It can be subclassified in different subtypes according to the main clinical manifestation: constipation, diarrhea, mixed, and unclassified. The role of gut microbiota in IBS has garnered significant attention in the scientific community. Emerging research spotlights the intricate involvement of microbiota dysbiosis in IBS pathogenesis. Studies have demonstrated reduced microbial diversity and stability and specific microbial alterations for each disease subgroup. Microbiota-targeted treatments, such as antibiotics, probiotics, prebiotics, synbiotics, fecal microbiota transplantation, and even diet, offer exciting prospects for managing IBS.
174
07 Oct 2023
Topic Review
Endoscopic Salvage of Gastrointestinal Anastomosis Leaks
Anastomotic leakage, which is defined as a defect in the integrity of a surgical join between two hollow viscera leading to communication between the intraluminal and extraluminal compartments, continues to be of high incidence and one of the most feared complications following gastrointestinal surgery, with a significant potential for a fatal outcome. Surgical options for management are limited and carry a high risk of morbidity and mortality; thus, surgeons are urged to look for alternative options which are minimally invasive, repeatable, non-operative, and do not require general anesthesia.
147
07 Oct 2023
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