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Energy-starved breast cancer cells consume their surroundings for fuel

A study by the University of Sheffield found that breast cancer cells take advantage of nutrients in the extracellular matrix when faced with nutrient starvation. The cells use an ingestion process called macropinocytosis to consume the matrix, breaking it down into energy-releasing substrates.

Powerhouse of the cell has self-preservation mechanism

Researchers found that spontaneous transient depolarization decreases reactive oxygen species production by inhibiting sustained matrix pH elevation. The study proposes a model where increased matrix pH facilitates moving more protons from outside the matrix into the matrix, controlling oxidative stress in cells.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Researchers find ways to impede progress of neurodegenerative diseases

A new paper reveals water-soluble polyol-methanofullerenes can decrease mitochondrial transmembrane potential, making them promising for targeted mitochondrial medications. This mechanism may be effective in treating neurodegenerative diseases such as Parkinson's and Alzheimer's, characterized by hyperpolarized mitochondria.