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Objective: To study the effects of Astragalus membranaceus (AM), Angelica sinensis (AS) and their combination on human umbilical vein endothelial cell (HUVEC) proliferation and cells cycle.
Methods: The effects were observed and studied by means of taking the cultured HUVECs as model to determine the cell proliferation with MTT method, cell cycle was analyzed with cytometry, and vascular endothelial growth factor (VEGF) expression with SABC method. The regulatory effects of AM, AS and their combination on the HUVEC proliferation promoting were observed and studied.
Results: AM and AS, used singly or in combination, could promote the growth of endothelial cells, increase the cell population in S phase, the effects showed more significant when used in combination (P < 0.05 or P < 0.001). Meanwhile, VEGF expression in all the medicated group was up-regulated, but in the PBS control group, it showed only weak expression (P < 0.05 or P < 0.01).
Conclusion: AM and AS have effect in promoting vascular endothelial cell proliferation and DNA synthesis, and showed synergistic effect when they were used in combination, suggesting that these two Chinese herbs could have certain effect on the genesis and development of neogenetic vascularization in ischemic myocardium.
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Med Sci (Paris)
September 2025
Département d'ophtalmologie et d'oto-rhino-laryngologie - chirurgie cervico-faciale, Faculté de médecine, Université Laval, Québec, Canada - CUO-Recherche, Médecine régénératrice, Centre de recherche du CHU de Québec - Université Laval, Québec, Canada.
Glaucoma, age-related macular degeneration, and diabetic retinopathy are complex eye diseases that involve inflammation. Several cellular models are developed to study inflammation mechanisms in the posterior segment of the eye. These models, are composed of cells of various origins (human or animal), derived from different tissues (retina, choroid, skin, and umbilical cord) and belonging to different cell types (epithelial, endothelial, vascular, and neuronal).
View Article and Find Full Text PDFAm J Physiol Regul Integr Comp Physiol
September 2025
Department of Health, Nutrition, and Food Sciences, Florida State University, Tallahassee, FL, USA.
Cystathionine γ-lyase (CSE) produces hydrogen sulfide (HS), a vasodilator critical for vascular function. While its systemic effects are well-documented, its role in erectile physiology remains unclear. This study investigated the impact of CSE deletion on vascular and erectile tissue reactivity.
View Article and Find Full Text PDFJ Vis Exp
August 2025
Physiology Unit, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases.
Resistance arteries, which include small arteries and arterioles, play essential roles in regulating blood pressure and tissue perfusion. Dysfunction in these arteries can lead to various cardiovascular conditions such as hypertension, atherosclerosis, and heart failure, as well as neurovascular conditions. The examination of human resistance arteries is crucial for understanding cardiovascular disease mechanisms and developing targeted therapeutic strategies.
View Article and Find Full Text PDFAm J Dermatopathol
September 2025
Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.
Background: Dermatologic adverse events (dAEs) are prevalent with BCR-ABL tyrosine kinase inhibitors (TKIs), affecting quality of life and treatment adherence. Despite their prevalence, underlying mechanisms of toxicity remain unclear. We sought to characterize dAEs across TKI generations to elucidate mechanisms driving toxicities.
View Article and Find Full Text PDFJACC Case Rep
September 2025
Department of Cardiovascular Surgery, Nagoya Heart Center, Nagoya, Japan.
Background: Capecitabine, an oral prodrug of 5-fluorouracil, is widely used for gastrointestinal malignancies. While its coronary toxicity is well documented, large-vessel complications such as aortic dissection are rarely reported.
Case Summary: We present a 65-year-old man with colorectal cancer who developed Stanford type A aortic dissection 3 days after initiating adjuvant capecitabine therapy.