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Topic Review
Nutrient-Sensing Receptors outside and inside Gastrointestinal System
Intestinal nutrient-sensing receptors act as a crosstalk between dietary components, the gut microbiota, and the regulation of immune, endocrinological, and neurological responses.
  • 825
  • 28 Dec 2023
Topic Review
Nutrients in NAFLD in People with HIV
HIV infection and nonalcoholic fatty liver disease (NAFLD) are two major epidemics affecting millions of people worldwide. As people with HIV (PWH) age, there is an increased prevalence of metabolic comorbidities, along with unique HIV factors, such as HIV chronic inflammation and life-long exposure to antiretroviral therapy, which leads to a high prevalence of NAFLD. Among people with HIV, nutrition has a key impact in both NAFLD onset and regression.
  • 417
  • 08 May 2023
Topic Review
Nutrition in Pediatric IBD
Inflammatory bowel disease (IBD) refers to a heterogeneous group of disorders encompassing Crohn’s disease (CD), ulcerative colitis (UC) and unclassified inflammatory bowel disease (IBD-U), characterized by a chronic inflammation of the intestinal tract with a relapsing-remitting behavior, and variably presenting with abdominal pain, diarrhea, rectal bleeding and weight loss. Dietary factors and malnutrition play a primary role in the onset and management of pediatric IBD. Moreover, an appropriate diet can decrease the risk of IBD flares, and an age-adequate nutritional status can decrease the risk of complications and surgery in the long-term stage of the disease. Enteral nutrition has a significant impact on mucosal inflammation in CD, and clinical response to oral polymeric diet is associated with down-regulation of mucosal pro-inflammatory cytokines. Nutritional strategies, such as exclusive enteral nutrition or CDED diet, have shown to be more effective than steroids in inducing clinical remission in pediatric patients.
  • 503
  • 13 Apr 2021
Topic Review
Nutrition/Exercise in Upper Gastrointestinal Cancers
Malnutrition and muscle wasting are associated with impaired physical functioning and quality of life in oncology patients. Patients diagnosed with upper gastrointestinal (GI) cancers are considered at high risk of malnutrition and impaired function. Due to continuous improvement in upper GI cancer survival rates, there has been an increased focus on multimodal interventions aimed at minimizing the adverse effects of cancer treatments and enhancing survivors’ quality of life. 
  • 635
  • 28 Sep 2021
Topic Review
Nutritional Approach to Chronic Constipation1
Chronic constipation (CC) is one of the most common gastroenterological diagnoses in clinical practice. Treatment includes several steps, depending on the severity of symptoms. Lifestyle modifications and increased intake of fiber and water are suggested by most health professionals. Unfortunately, the recommendations in this regard are the most varied, often conflicting with each other and not always based on solid scientific arguments. 
  • 574
  • 25 Oct 2021
Topic Review
Nutritional Factors Benefit Postmenopausal Women with NAFLD
Nonalcoholic fatty liver disease (NAFLD) is a prevalent condition among postmenopausal women that can lead to severe liver dysfunction and increased mortality. There is also growing evidence that specific nutritional factors may help to prevent or treat NAFLD. For example, supplementation with vitamins C, D, and E may exert beneficial effects on liver health or related metabolic features, primarily through their antioxidant and anti-inflammatory properties. Coffee consumption is inversely associated with a number of liver-related conditions, including slower progression of fibrosis, lower transaminase levels, and decreased liver-related mortality, and some of these positive effects may be due to caffeine. Caffeine has also been shown to improve features of metabolic syndrome, including hepatic injury in high carbohydrate, high-fat-diet-fed rat; increase energy expenditure; and reduce total body, trunk, and visceral fat or fat mass. 
  • 319
  • 21 Jun 2023
Topic Review
Nutritional Support Techniques
Gastrointestinal cancers represent a major cause of morbidity and mortality worldwide. A significant issue regarding the therapeutic management of these patients consists of metabolic disturbances and malnutrition. Nutritional deficiencies have a negative impact on both the death rates of these patients and the results of surgical or oncological treatments. Thus, current guidelines recommend the inclusion of a nutritional profile in the therapeutic management of patients with gastrointestinal cancers. The development of digestive endoscopy techniques has led to the possibility of ensuring the enteral nutrition of cancer patients without oral feeding through minimally invasive techniques and the avoidance of surgeries, which involve more risks. The enteral nutrition modalities consist of endoscopy-guided nasoenteric tube (ENET), percutaneous endoscopic gastrostomy (PEG), percutaneous endoscopic gastrostomy with jejunal tube extension (PEG-J), direct percutaneous endoscopic jejunostomy (DPEJ) or endoscopic ultrasound (EUS)-guided gastroenterostomy.
  • 581
  • 15 Aug 2022
Topic Review
Nutritional Therapies on the Intestinal Microbiome
Inflammatory bowel disease (IBD) is a chronic, autoimmune disorder of the gastrointestinal tract with numerous genetic and environmental risk factors. Patients with Crohn’s disease (CD) or ulcerative colitis (UC) often demonstrate marked disruptions of their gut microbiome. The intestinal microbiota is strongly influenced by diet. The association between the increasing incidence of IBD worldwide and increased consumption of a westernized diet suggests host nutrition may influence the progression or treatment of IBD via the microbiome. Several nutritional therapies have been studied for the treatment of CD and UC. While their mechanisms of action are only partially understood, existing studies do suggest that diet-driven changes in microbial composition and function underlie the diverse mechanisms of nutritional therapy. Despite existing therapies for IBD focusing heavily on immune suppression, nutrition is an important treatment option due to its superior safety profile, potentially low cost, and benefits for growth and development. These benefits are increasingly important to patients. In this entry, we will describe the clinical efficacy of the different nutritional therapies that have been described for the treatment of CD and UC. 
  • 807
  • 05 Jan 2022
Topic Review
Obesity and Inflammatory Bowel Disease
Inflammatory colon diseases, which are a global health concern, include a variety of gastrointestinal tract disorders, such as inflammatory bowel disease and colon cancer. The pathogenesis of these colon disorders involves immune alterations with the pronounced infiltration of innate and adaptive immune cells into the intestines and the augmented expression of mucosal pro-inflammatory cytokines stimulated by commensal microbiota. Epidemiological studies during the past half century have shown that the proportion of obese people in a population is associated with the incidence and pathogenesis of gastrointestinal tract disorders. The advancement of understanding of the immunological basis of colon disease has shown that adipocyte-derived biologically active substances (adipokines) modulate the role of innate and adaptive immune cells in the progress of intestinal inflammation. 
  • 596
  • 30 Mar 2021
Topic Review
Obesity in Type 2 Diabetes Mellitus
Obesity or excessive weight gain is identified as the most important and significant risk factor in the development and progression of type 2 diabetes mellitus (DM) in all age groups. It has reached pandemic dimensions, making the treatment of obesity crucial in the prevention and management of type 2 DM worldwide. 
  • 213
  • 08 Feb 2024
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