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Hippocampal synaptic dysfunction is a hallmark of Alzheimer's disease (AD). Many agents regulating hippocampal synaptic plasticity show an ameliorative effect on AD pathology, making them potential candidates for AD therapy. In the present study, we investigated spinosin as a regulating agent of synaptic plasticity in AD. Spinosin attenuated amyloid β (Aβ)-induced long-term potentiation (LTP) impairment, and improved plasmin activity and protein level in the hippocampi of 5XFAD mice, a transgenic AD mouse model. Moreover, the effect of spinosin on hippocampal LTP in 5XFAD mice was prevented by 6-aminocaproic acid, a plasmin inhibitor. These results suggest that spinosin improves synaptic function in the AD hippocampus by regulating plasmin activity.
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http://dx.doi.org/10.4062/biomolther.2019.076 | DOI Listing |
Arterioscler Thromb Vasc Biol
September 2025
Division of Hematology, Department of Medicine, UNC Blood Research Center, University of North Carolina at Chapel Hill.
The primary role of the fibrinolytic system is to degrade fibrin clots. However, the fibrinolytic system is often activated in patients with cancer and may affect cancer progression, metastasis, and patient survival. Clinical studies have shown that elevated plasma levels of uPA (urokinase plasminogen activator) are associated with cancer progression in patients with prostate and cervical cancers, whereas high plasma levels of soluble uPAR (uPA receptor) are associated with progression and metastasis in prostate, breast, bladder, and colorectal cancers.
View Article and Find Full Text PDFRinsho Ketsueki
September 2025
Department of Hematology, Kanazawa University Hospital.
This paper discusses the diagnostic findings and treatment options for DIC associated with vascular abnormalities based on the "Clinical practice guidelines for management of disseminated intravascular coagulation (DIC) in Japan 2024" released in early 2025. The guidelines define vascular abnormalities as aortic aneurysm, aortic dissection, vasculitis syndromes, and vascular malformations. DIC with enhanced fibrinolysis is a type of DIC often observed in association with vascular abnormalities.
View Article and Find Full Text PDFArthritis Rheumatol
September 2025
Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Firenze, Italy.
Objective: Cardiovascular events are major determinants of morbidity and mortality in systemic lupus erythematosus (SLE), particularly in patients with renal involvement. While oxidative stress has been implicated in driving vascular and renal damage in SLE, the specific mechanisms remain unclear. This study investigated the potential role of oxidative stress-induced alterations in fibrinogen structure and function in the pathogenesis of atherothrombosis in SLE.
View Article and Find Full Text PDFSci Rep
September 2025
Siriraj Cancer Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand.
Early detection of gastrointestinal (GI) cancers-including colorectal cancer (CRC), gastric cancer (GC), and esophagogastric junction cancer (EGJC)-is essential for improving patient outcomes. However, current diagnostic methods such as endoscopy and colonoscopy are invasive, costly, and not widely accessible. Proteases are elevated in many cancers and are detectable in peripheral blood, making them promising candidates for noninvasive diagnostic strategies.
View Article and Find Full Text PDFRespir Investig
August 2025
Department of Pulmonary and Critical Care Medicine, Faculty and Graduate School of Medicine, Mie University, Japan; Department of Immunology, Faculty and Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu, Mie, 514-8507, Japan.
The coagulation and fibrinolytic systems are distinct biological processes yet intricately interconnected through various regulatory mechanisms. The coagulation cascade not only serves to prevent blood loss from damaged vessels but also acts as a defense mechanism against invading pathogens and initiates vascular repair. This physiological response culminates in the formation of a fibrin mesh through a well-orchestrated cascade of enzymatic reactions.
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