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http://dx.doi.org/10.1002/aet2.10860 | DOI Listing |
Crit Rev Toxicol
January 2025
Syngenta, Bracknell, United Kingdom.
While progress has been made in recent years, there are still no suitable and accepted , or models that can be used to accurately predict whether a chemical substance has the intrinsic property to cause immune-mediated chemical respiratory allergy, typically manifested as allergic asthma or allergic rhinitis which represents a severe health hazard. Regulatory authorities have relied primarily on clinical evidence (case reports, clinical databases, worker exposure studies) to classify substances as respiratory sensitizers, but this evidence can lack a proven immunological mechanism which is necessary to identify substances which can cause life-long sensitization and clinically relevant allergic symptoms in the respiratory tract in an exposed population (such respiratory allergens may be considered as "true" sensitizers, in analogy to the definition of skin sensitization, and in contrast to respiratory irritants). In light of this, the European Center for Ecotoxicology and Toxicology of Chemicals convened a Task Force to evaluate the types of clinical methods and data sources and the implications of relying on such data for regulatory decision making from a scientific perspective.
View Article and Find Full Text PDFInt J Surg Case Rep
January 2025
Department of Thoracic surgery, National University Hospital, Damascus University, Damascus, Syria.
Introduction: Mediastinal paragangliomas are rare neoplasms arising from extra-adrenal neural crest cells, presenting as either functional or nonfunctional tumors. Clinical manifestations range from catecholamine-related symptoms to physical compression effects. Accurate recognition of these tumors is crucial for diagnosis and management due to their rarity and association with vital mediastinal structures.
View Article and Find Full Text PDFBMJ Case Rep
January 2025
Department of Cardiothoracic and Vascular Surgery, Kasturba Medical College, Manipal Academy of Higher Education, Mangalore, Karnataka, India
One of the most common congenital cardiac anomalies is It accounts for 4%-6% of all congenital heart defects. A CoA case surviving into adulthood may result in hypertension, weak femoral pulse, limb and bowel ischaemia and heart failure. A man in his early 20s presented with severe lower limb and abdominal pain with long-standing hypertension, refractory to antihypertensives.
View Article and Find Full Text PDFBiomark Res
January 2025
Department of Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA.
FMS-like tyrosine kinase 3 (FLT3) genetic variants are commonly seen in high-grade myeloid neoplasms and are typically gain-of-function mutations associated with a proliferative disease phenotype. Inactivating FLT3 variants have been less frequently described in non-malignant, autoimmune disorders and are uncommon in aplastic anemia (AA). Herein, we report the first to our knowledge, and unusual case of a germline, gain-of-function, FLT3 variant in a patient with severe AA treated successfully with immunosuppressive therapy.
View Article and Find Full Text PDFGenes (Basel)
November 2024
Clinic for Small Animal Internal Medicine, Vetsuisse Faculty University of Zürich, 8057 Zürich, Switzerland.
In heme degradation, biliverdin reductase catalyzes the conversion of biliverdin to bilirubin. Defects in the biliverdin reductase A gene () causing biliverdinuria are extraordinarily rare in humans, and this inborn error of metabolism has not been reported in other mammals. The objective of this study was to diagnose biliverdinuria and identify the causal variants in two adult mixed-breed dogs with life-long green urine.
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