Over the past two decades, regulatory B cells (Breg cells or Bregs) have emerged as an immunosuppressive subset of B lymphocytes playing a key role in inflammation, infection, allergy, transplantation, and cancer. However, the involvement of Bregs in various pathological conditions of the gastrointestinal tract is not fully understood and is the subject of much recent research. In this review, we aimed to summarize the current state of knowledge about the origin, phenotype, and suppressive mechanisms of Bregs. The relationship between the host gut microbiota and the function of Bregs in the context of the disturbance of mucosal immune homeostasis is also discussed. Moreover, we focused our attention on the role of Bregs in certain diseases and pathological conditions related to the digestive tract, especially infection, parasitic diseases (leishmaniasis and schistosomiasis), and gastrointestinal neoplasms. Increasing evidence points to a relationship between the presence and number of Bregs and the severity and progression of these pathologies. As the number of cases is increasing year by year, also among young people, it is extremely important to understand the role of these cells in the digestive tract.
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http://dx.doi.org/10.3389/fimmu.2022.981847 | DOI Listing |
Therap Adv Gastroenterol
December 2024
Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani, 2, Padua 35128, Italy.
Crohn's disease (CD) is a chronic, complex inflammatory disorder of the gastrointestinal tract that presents significant therapeutic challenges. Despite the availability of a wide range of treatments, many patients experience primary non-response, secondary loss of response, or adverse events, limiting the overall effectiveness of current therapies. Clinical trials often report response rates below 60%, partly due to stringent inclusion criteria.
View Article and Find Full Text PDFFront Pediatr
December 2024
Department of Neonatal Surgery, Shanxi Provincial Children's Hospital, Taiyuan, China.
Background: Intrathoracic kidney (ITK) is a rare congenital disease, with only about 40 pediatric cases reported worldwide to date. ITK associated with congenital diaphragmatic hernia (CDH) is even rarer, and we report a case of an infant with ITK combined with a giant CDH.
Case Description And Management: A six-month-old male infant was hospitalized due to "vomiting for 4 days".
Environ Sci Technol
December 2024
Xiamen Key Laboratory of Indoor Air and Health, Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
The global incidence of allergic diseases is rising and poses a substantial threat to human health. Allergenic proteins released by various allergenic species play a critical role in the pathogenesis of allergic diseases and have been widely detected in the environmental matrix. However, the release, presence and interaction of environmental allergens with human body remain to be elucidated.
View Article and Find Full Text PDFWe present a case of an infant patient with Robin sequence (Pierre Robin sequence; PRS) who underwent general anesthesia for a glossopexy procedure. Pediatric patients with PRS are prone to upper airway obstruction during general anesthesia induction and intubation difficulties due to micrognathia and glossoptosis. In this case, we facilitated mask ventilation by inserting a nasopharyngeal airway before induction and successfully intubated the patient using a 2-person technique that combined the use of a video laryngoscope and a flexible fiber-optic scope.
View Article and Find Full Text PDFActa Anaesthesiol Scand
January 2025
Radiodiagnosis, Faculty of Medicine, Tanta University, Tanta, Egypt.
Background: Preoperative fasting aims to reduce the risk of pulmonary aspiration. Our aim was to compare the incidence of increased gastric content after preoperative liberal versus a standard fasting in children.
Method: Two hundred children, presented for elective surgeries, were instructed to follow either 6-4-2 (standard group) or 6-4-0 (liberal group) preoperative fasting regimens.
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