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Stratification of Experimental LPS-Induced Systemic Inflammatory Response by Expression Level of Hif1a and NFkb Genes.
Bull Exp Biol Med
January 2025
Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, Moscow, Russia.
It was previously found that the severity of LPS-induced systemic inflammatory response (SIRS) in rats is determined by resistance to hypoxia and the level of Hif1a expression. Individual differences in the level of Hif1a and NFkb expression in the liver were studied in relation to the severity of inflammatory and immune reactions in LPS-induced SIRS in rats without previous placement in a ventilated decompression chamber. During the early periods after SIRS modeling, rats with high expression of the Hif1a and NFkb genes associated with increased expression of pro- and anti-inflammatory cytokines are identified.
View Article and Find Full Text PDFOptimized Intravenous Injection in Adult Zebrafish.
J Vis Exp
December 2024
Department of Medicine, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong; ZeBlast Technology Limited, Hong Kong Science Park;
Intravenous (IV) injection is widely recognized as the most effective and commonly utilized method for achieving systemic delivery of substances in mammalian research models. However, its application in adult zebrafish for drug delivery, stem cell transplantation, and regenerative and cancer studies has been limited due to the challenges posed by their small body size and intricate blood vessels. To overcome these limitations, alternative injection techniques such as intracardiac and retro-orbital (RO) injection have been explored in the past for stem cell transplantation in adult zebrafish.
View Article and Find Full Text PDFHigh-Throughput Dissociation and Orthotopic Implantation of Breast Cancer Patient-Derived Xenografts.
J Vis Exp
December 2024
Division of Exercise Physiology, Department of Health Professions, West Virginia University School of Medicine; Cancer Institute, West Virginia University School of Medicine; 3Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine;
Patient-derived xenografts (PDXs) provide a clinically relevant method for recapitulating tumor-involved cell types and the tumor microenvironment, which is essential for advancing knowledge of breast cancer (BC). Additionally, PDX models enable the study of BC systemic effects, which is not possible using in vitro models. Traditional methods for implanting BC xenografts typically involve anesthesia and sterile surgical procedures, which are time-consuming, invasive, and limit the scalability of PDX models in BC research.
View Article and Find Full Text PDFCerebrotendinous xanthomatosis: A complex interplay between a clinically and genetically heterogeneous condition.
Eur J Neurol
January 2025
Brain and Mind Centre, University of Sydney, Camperdown, New South Wales, Australia.
Background And Purpose: Cerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive lipid storage disease characterized by abnormal bile acid synthesis. It often presents with systemic and neurological manifestations; however, atypical presentations can lead to significant diagnostic challenges. This case report highlights the diagnostic complexities and management considerations in a patient with an uncommon presentation of CTX.
View Article and Find Full Text PDFCase report: Cilioretinal artery occlusion combined with central retinal vein occlusion as the initial presentation of pulmonary arterial hypertension.
Front Med (Lausanne)
December 2024
Department of Ophthalmology, Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
Background: Pulmonary arterial hypertension (PAH) is characterized by elevated pulmonary artery pressure and vascular resistance, leading to systemic venous hypertension and potential right heart failure. These elevated pressures can extend to ocular veins, resulting in complications such as central retinal vein occlusion (CRVO). This case report highlights a rare instance of CRVO combined with cilioretinal artery occlusion (CilRAO), an uncommon ocular manifestation associated with PAH.
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