Human arterial biopsies were studied by morphometrical, cytochemical, autoradiographic and ultrastructural methods with the aim of determining whether intimal lesions in atherosclerosis are characterized by definite cytological patterns. The results have shown: 1. a strong association between fibro-atheromatous plaques and foam and monocyte-like cells; 2. very few foam cells in diffuse intimal thickening and pearly-white fibrous plaques; 3. macrophages and foam cells were the only cytotypes consistently labelled with 3H-TdR and presumably proliferating in the fibro-atheromatous plaques.
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Front Toxicol
January 2025
Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, Pakistan.
Plastics are globally considered a significant threat, particularly to metropolitan areas, due to the extensive use of plastic products. This research is the first of its kind to document microplastics contamination and its effects on Red wettled lapwing (Vanellus indicus). The concentration of microplastics (MPs) was measured from surface water at different locations including canals and drains, which are the primary sources of MPs pollution in the metropolitan city Lahore, Pakistan.
View Article and Find Full Text PDFCardiovasc Diabetol
January 2025
Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No.2 Anzhen Road, Chaoyang District, 100029, Beijing, China.
Introduction: Bone marrow-derived mesenchymal stem cell-derived extracellular vesicles (BMSC-EVs) are widely used for therapeutic purposes in preclinical studies. However, their utility in treating diabetes-associated atherosclerosis remains largely unexplored. Here, we aimed to characterize BMSC-EV-mediated regulation of autophagy and macrophage polarization.
View Article and Find Full Text PDFFront Cardiovasc Med
January 2025
School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.
Cardiometabolic diseases (CMD) are leading causes of death and disability worldwide, with complex pathophysiological mechanisms in which inflammation plays a crucial role. This review aims to elucidate the molecular and cellular mechanisms within the inflammatory microenvironment of atherosclerosis, hypertension and diabetic cardiomyopathy. In atherosclerosis, oxidized low-density lipoprotein (ox-LDL) and pro-inflammatory cytokines such as Interleukin-6 (IL-6) and Tumor Necrosis Factor-alpha (TNF-α) activate immune cells contributing to foam cell formation and arterial wall thickening.
View Article and Find Full Text PDFDrug Deliv Transl Res
January 2025
Center for Coronary Heart Disease, Department of Cardiology, National Center for Cardiovascular Diseases of China, State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Rd, Beijing, 100037, China.
Atherosclerosis is one of the leading causes of ischemic cardiovascular disease worldwide. Recent studies indicated that vascular smooth muscle cells (VSMCs) play an indispensable role in the progression of atherosclerosis. Exosomes derived from mesenchymal stem cells (MSCs) have demonstrated promising clinical applications in the treatment of atherosclerosis.
View Article and Find Full Text PDFInt J Med Microbiol
January 2025
Division of Microbiology, Department of Infectious Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan.
Cardiovascular diseases, primarily caused by atherosclerosis, are a major public health concern worldwide. Atherosclerosis is characterized by chronic inflammation and lipid accumulation in the arterial wall, leading to plaque formation. In this process, macrophages play a crucial role by ingesting lipids and transforming into foam cells, which contribute to plaque instability and cardiovascular events.
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