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Topic Review
Bile Acids in Metabolic Disease
Bile acids are cholesterol-derived metabolites with a well-established role in the digestion and absorption of dietary fat. More recently, the discovery of bile acids as natural ligands for the nuclear farnesoid X receptor (FXR) and membrane Takeda G-protein-coupled receptor 5 (TGR5), and the recognition of the effects of FXR and TGR5 signaling have led to a paradigm shift in knowledge regarding bile acid physiology and metabolic health. Bile acids are now recognized as signaling molecules that orchestrate blood glucose, lipid and energy metabolism. Changes in FXR and/or TGR5 signaling modulates the secretion of gastrointestinal hormones including glucagon-like peptide-1 (GLP-1) and peptide YY (PYY), hepatic gluconeogenesis, glycogen synthesis, energy expenditure, and the composition of the gut microbiome.
  • 791
  • 28 Sep 2021
Topic Review
Carotenoids
Carotenoids are colored natural pigments belonging to a large family of C40 skeleton with eight isoprene molecules.
  • 790
  • 13 May 2021
Topic Review
G-Protein-Coupled Receptors (GPCRs)
Despite the identification of Aβ plaques and NFTs as biomarkers for Alzheimer’s disease (AD) pathology, therapeutic interventions remain elusive, with neither an absolute prophylactic nor a curative medication available to impede the progression of AD presently available. Current ap-proaches focus on symptomatic treatments to maintain AD patients’ mental stability and behav-ioral symptoms by decreasing neuronal degeneration; however, the complexity of AD patholo-gy requires a wide range of therapeutic approaches for both preventive and curative treatments. In this regard, this entry summarizes the role of receptors as a potential target for treating AD and focuses on the path of major receptors which are responsible for AD progression. This re-view gives an overall idea centering on major receptors, their agonist and antagonist and future prospects of viral mimicry in AD pathology. This entry aims to provide researchers and devel-opers a comprehensive idea about the different receptors involved in AD pathogenesis that may lead to finding a new therapeutic strategy to treat AD.
  • 790
  • 16 Dec 2021
Topic Review
FLASH Radiotherapy—Radiobiological Rationale
FLASH radiotherapy, or the administration of ultra-high dose rate radiotherapy, is a new radiation delivery method that aims to widen the therapeutic window in radiotherapy through better sparing of the normal tissue.
  • 790
  • 13 Apr 2021
Topic Review
Management of Obstructive Sleep Apnea in Adults
Obstructive sleep apnea (OSA) is a common disease that is often under-diagnosed and under-treated in all ages. The conventional diagnostic and therapeutic approaches for adults with OSA are usually based on clinical assessments, followed by polysomnography (PSG) or respiratory polygraphy (RPG) in a sleep lab or at home (HSAT: home sleep apnea testing), and treatment decisions. With this approach, it could be unadvisable for physicians to decide the treatment approach for OSA without evaluating AHI.
  • 795
  • 21 Dec 2022
Topic Review
Uncaria rhynchophylla and Alzheimer’s Disease
Alzheimer’s disease (AD) is a growing concern in modern society, and effective drugs for its treatment are lacking. Uncaria rhynchophylla (UR) and its main alkaloids have been studied to treat neurodegenerative diseases such as AD. This study aimed to uncover the key components and mechanism of the anti-AD effect of UR alkaloids through a network pharmacology approach.
  • 791
  • 06 Apr 2021
Topic Review
[18F]FET PET in Glioma Recurrence
[18F]fluoroethyl-tyrosine (FET) is an artificial amino acid taken up into upregulated tumoral cells by the LAT system, independently of blood brain barrier leakage. FET is diffuse in Europe and has been shown to provide high sensitivity and specificity for glioma detection resulting in a reliable diagnostic tool for differentiating tumor recurrence/progression from treatment related changes.
  • 790
  • 19 Apr 2022
Topic Review
Clinical and Echographic Features of Fetal Heart Failure
Fetal heart failure (FHF) is a condition of inability of the fetal heart to deliver adequate blood flow for tissue perfusion in various organs, especially the brain, heart, liver and kidneys. FHF is associated with inadequate cardiac output, which is commonly encountered as the final outcome of several disorders and may lead to intrauterine fetal death or severe morbidity. Fetal echocardiography plays an important role in diagnosis of FHF as well as of the underlying causes. 
  • 791
  • 04 May 2023
Topic Review
Chemotherapy-Induced Dysbiosis and Neurocognitive Disorders
While lifesaving achievements allowed for cancer cure in many patients, cancer survivors may suffer from long-term adverse effects substantially altering their quality of life and reintegration into normal life. Chemotherapy damages the intestinal mucosa and heavily disrupts the gut ecosystem leading to gastrointestinal toxicity. Increasing evidence from animal models and clinical studies demonstrated the associations between intestinal dysbiosis and depression, anxiety, pain, and impaired cognitive functions. Recently, the emerging role of the microbiome in chemotherapy-induced late effects affecting cognitive functions in cancer survivors has been proposed. 
  • 790
  • 11 Mar 2021
Topic Review
Ketoacid Analogues Supplementation in CKD
Diet is a key component of care during chronic kidney disease (CKD). In order to reduce the risk of nutritional disorders in very-low protein diets (VLDP), supplementation by nitrogen-free ketoacid analogues (KAs) have been proposed.
  • 790
  • 06 Sep 2021
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