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Topic Review
Oxidative Stress and Lung Fibrosis
Lung fibrosis is a progressive fatal disease in which deregulated wound healing of lung epithelial cells drives progressive fibrotic changes. Persistent lung injury due to oxidative stress and chronic inflammation are central features of lung fibrosis. Cigarette smoking causes oxidative stress and is a risk factor for lung fibrosis.
  • 460
  • 30 Nov 2023
Topic Review
Protein-Bound Uremic Toxins in Senescence and Kidney Fibrosis
Chronic kidney disease (CKD) is a progressive condition of kidney dysfunction due to diverse causes of injury. In healthy kidneys, protein-bound uremic toxins (PBUTs) are cleared from the systemic circulation by proximal tubule cells through the concerted action of plasma membrane transporters that facilitate their urinary excretion, but the endogenous metabolites are hardly removed with kidney dysfunction and may contribute to CKD progression. Accumulating evidence suggests that senescence of kidney tubule cells influences kidney fibrosis, the common endpoint for CKD with an excessive accumulation of extracellular matrix (ECM). Senescence is a special state of cells characterized by permanent cell cycle arrest and limitation of proliferation, which promotes fibrosis by releasing senescence-associated secretory phenotype (SASP) factors. The accumulation of PBUTs in CKD causes oxidative stress and increases the production of inflammatory (SASP) factors that could trigger fibrosis. Studies gave some clues that PBUTs may also promote senescence in kidney tubular cells. 
  • 437
  • 25 Oct 2023
Topic Review
Etiology and Route of Access of Particulate Matter
The primary origin of particulate matter (PM) is from a combination of industrial activity, internal combustion engines, and geographic and meteorological conditions linked to the increased forest fires.
  • 437
  • 22 Jan 2024
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