impaired glutathione synthesis b12 usmle Common causes of vitamin deficiency (hypocobalaminemia) gastric absorption Pernicious anaemia Gastrectomy—partial or total Zollinger-Ellison syndrome Impaired intestinal absorption Ileal resection or disease—for example, Crohn's Clinical Pathobiochemistry of Vitamin B12

Platelets promote neutrophil adhesion to the vascular endothelium through the upregulation of integrins and enhanced responsiveness to chemokines (137)

The collagen synthesis that fights wrinkles happens primarily during sleep

Research shows that cisplatin-resistant lung cancer cells undergo metabolic reprogramming, leading to increased ROS production and greater reliance on oxidative metabolism rather than glycolysis

Therefore, the function and regulatory mechanism of NRF2 in cells have attracted wide attention and are considered key factors in maintaining cellular homeostasis and adapting to environmental changes

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Two promising approaches in the treatment of myocardial infarction: stem cells and gene therapy