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Mechanisms of cognitive impairment associated with cerebral infarction.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
October 2024
Department of Neurology, Second Xiangya Hospital, Central South University, Changsha 410011, China.
Cerebral infarction is a common type of stroke with high incidence and disability rates, and most patients experience varying degrees of cognitive impairment. The manifestations and severity of post-infarction cognitive impairment are influenced by multiple interacting factors, and its pathophysiological mechanisms are highly complex, involving pericyte degeneration, excessive generation of reactive oxygen species (ROS), overproduction of glutamate, and overactivation of autophagy. After cerebral infarction, abnormal pericyte function activates neuroinflammation and facilitates the entry of inflammatory mediators into the brain; detachment of pericytes from blood vessels disrupts the integrity of the blood-brain barrier.
View Article and Find Full Text PDFIn vitro study of a siRNA delivery liposome constructed with an ionizable cationic lipid.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
October 2024
Department of Pharmaceutical Engineering, Chemistry and Chemical Engineering, Central South University, Changsha 410083.
Objectives: Small interfering RNA (siRNA) can silence disease-related genes through sequence-specific RNA interference (RNAi). Cationic lipid-based liposomes effectively deliver nucleic acids into the cytoplasm but often exhibit significant toxicity. This study aims to synthesize a novel ionizable lipid, Nε-laruoyl-lysine amide (LKA), from natural amino acids, constructed LKA-based liposomes, and perform physicochemical characterization and cell-based experiments to systematically evaluate the potential of these ionizable lipid-based liposomes for nucleic acid delivery.
View Article and Find Full Text PDFNeu1-Deficient Zebrafish Cells Exhibit Reduced Edwardsiella piscicida Infection Due to Altered Lysosomal Exocytosis and Membrane Dynamics.
Fish Shellfish Immunol
March 2025
Department of Food Life Sciences, Faculty of Fisheries, Kagoshima University, Kagoshima, 890-0056, Japan; Course of Biological Science and Technology, The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, 890-0065, Japan. Electronic address:
Edwardsiella piscicida is a Gram-negative intracellular pathogen causing Edwardsiellosis, leading to economic losses in aquaculture. While phagocytosis is its primary infection route, alternative entry pathways remain largely unexplored. Neu1 sialidase, a lysosomal enzyme in glycoconjugate degradation, was investigated for its role in E.
View Article and Find Full Text PDFThe PLAAT family as phospholipid-related enzymes.
Prog Lipid Res
March 2025
Department of Biochemistry, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan. Electronic address:
The phospholipase A and acyltransferase (PLAAT) family is a group of structurally related proteins that are conserved among vertebrates. In humans, the family comprises five members (PLAAT1-5), which share common domain structures, and functions as phospholipase A/A and acyltransferase enzymes. Regarding acyltransferase activities, PLAATs produce N-acyl-phosphatidylethanolamines, which serve as the precursor of bioactive N-acylethanolamines (NAEs).
View Article and Find Full Text PDFEvidence and Recommendation for Infantile Krabbe Disease Newborn Screening.
Pediatrics
March 2025
Division of Primary Care Pediatrics, Nationwide Children's Hospital, Columbus, Ohio.
Krabbe disease (KD), which affects 0.3-2.6 per 100 000 live births, is an autosomal recessive lysosomal disorder caused by variants in the GALC gene that reduce galactosylceramidase (GALC) activity, leading to psychosine accumulation, cerebral white matter degeneration, and peripheral neuropathy.
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