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Topic Review
CSCs in Tumours of the CNS in Children
Cancer stem cells (CSCs) are a subgroup of cells found in various kinds of tumours with stem cell characteristics, such as self-renewal, induced differentiation, and tumourigenicity. The existence of CSCs is regarded as a major source of tumour recurrence, metastasis, and resistance to conventional chemotherapy and radiation treatment. Tumours of the central nervous system (CNS) are the most common solid tumours in children, which have many different types including highly malignant embryonal tumours and midline gliomas, and low-grade gliomas with favourable prognoses.
  • 191
  • 07 Aug 2023
Topic Review
Coronary Vascular Function and Invasive Physiology Assessment
A considerable number of patients with angina or myocardial ischemia have no significant coronary artery disease on invasive angiography. Several steps towards a better comprehension of the pathophysiology of these conditions, angina or ischemia with non-obstructive coronary arteries (ANOCA/INOCA), have been made.
  • 395
  • 07 Aug 2023
Topic Review
Epigallocatechin 3-Gallate and Myricetin against SARS-CoV-2 Infection
The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the deadliest virus since the 1918 influenza virus, has posed a serious threat to global health security. Tremendous research efforts have been undertaken, aiming at controlling and/or treating SARS-CoV-2 infection. The exploration of non-toxic and cost-effective dietary components, such as epigallocatechin 3-gallate and myricetin, for health improvement and disease treatment has recently attracted substantial research attention.
  • 514
  • 07 Aug 2023
Topic Review
Diabetic Ketoacidosis in Children and Adolescents
Diabetic ketoacidosis (DKA) represents an acute, severe complication of relative insulin deficiency and a common presentation of Type 1 Diabetes Mellitus (T1DM) primarily and, occasionally, Type 2 Diabetes Mellitus (T2DM) in children and adolescents. It is characterized by the biochemical triad of hyperglycaemia, ketonaemia and/or ketonuria, and acidaemia. Clinical symptoms include dehydration, tachypnoea, gastrointestinal symptoms, and reduced level of consciousness, precipitated by a variably long period of polyuria, polydipsia, and weight loss. 
  • 301
  • 07 Aug 2023
Topic Review
Gastrointestinal Imaging Findings in the Era of COVID-19
The potentially fatal COVID-19 pandemic has been associated with a largespectrum of clinical presentations. Beyond the classical pulmonary manifestations, gastrointestinal tract-related symptoms suchas nausea, diarrhea, abdominal distention and pain have been observed in patients, as a consequence of the binding of SARS-CoV-19 to Angiotensin-converting Enzyme 2 (ACE2) receptors in the gastrointestinal (GI) tract. Taking into consideration the high possibility of GI tract involvement, it is crucial for radiologists to be aware of the variety of abdominal imaging findings in patients with COVID-19, as early recognition can aid the diagnosis in patients with nonspecific, atypical symptoms.
  • 491
  • 07 Aug 2023
Topic Review
Mechanisms of Cutaneous irAEs Induced by ICIs
Immune checkpoint inhibitors (ICIs) have emerged as promising therapeutic options for the treatment of various cancers. These novel treatments effectively target key mediators of immune checkpoint pathways. ICIs primarily consist of monoclonal antibodies that specifically block cytotoxic T-lymphocyte antigen 4 (CTLA-4), programmed cell death 1 (PD-1), programmed cell death-ligand 1 (PD-L1), and lymphocyte activation gene 3 protein (LAG-3). Despite the notable efficacy of ICIs in cancer treatment, they can also trigger immune-related adverse events (irAEs), which present as autoimmune-like or inflammatory conditions.
  • 189
  • 07 Aug 2023
Topic Review
Overview of Human Reproduction and Unintended Pregnancy
Hormonal contraceptives, by their nature, prevent pregnancy by regulating pituitary production of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which act as reproductive signals for ovulation in women and sperm maturation in men. Unintended pregnancies are pregnancies that occur in advance of a preferred timeframe or completely unplanned. Each year, 121 million unintended pregnancies occur, accounting for nearly half (48%) of all pregnancies across the globe. 
  • 303
  • 07 Aug 2023
Topic Review
Structure and Function of Matrix Metalloproteinase-9
Matrix metalloproteinases (MMPs) belong to a family of zinc-dependent proteolytic metalloenzymes. MMP-9, a member of the gelatinase B family, is characterized as one of the most intricate MMPs. The crucial involvement of MMP-9 in extracellular matrix (ECM) remodeling underscores its significant correlation with each stage of cancer pathogenesis and progression. The design and synthesis of MMP-9 inhibitors is a potentially attractive research area.
  • 286
  • 07 Aug 2023
Topic Review
Relevance of Fish Oil in Gastrointestinal-Cancer-Associated Cachexia
Fish oil is rich in omega-3 fatty acids, which aid in energy metabolism and utilizing fatty acids high in energy density. It has been shown to reduce levels of pro-inflammatory mediators because fish oil contains high amounts of omega-3 fatty acids, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and other polyunsaturated fatty acids (PUFAs). In a study of GI cancer patients undergoing surgical intervention, adding fish oil to arginine improved post-surgical outcomes and shortened recovery compared to no nutritional support in 305 patients.
  • 282
  • 07 Aug 2023
Topic Review
Magnetic Resonance Imaging of the Gastrointestinal Tract
Magnetic resonance imaging (MRI) performed with the more advanced imaging techniques allows an accurate assessment of many intestinal disorders, particularly inflammatory bowel disease and rectal cancer; in most of these diseases, MRI is invaluable for diagnosis, staging, and monitoring under treatment. Several MRI parameters are currently considered activity biomarkers for inflammatory and neoplastic diseases. Furthermore, in younger patients with acute or chronic GI disease, MRI can be safely used for short-term follow-up studies in many critical clinical situations because it is radiation-free. MRI assessment of functional gastro-esophageal and small bowel disorders is still in its infancy but very promising, while it is well established and widely used for dynamic assessment of anorectal and pelvic floor dysfunction; MRI motility biomarkers have also been described. 
  • 529
  • 07 Aug 2023
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