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K
king@blackneon.net
@king@blackneon.net
Posts
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Giving men a common antidepressant could help tackle domestic violence: world-first study -
Tattoo Ink Moves Through the Body, Killing Immune Cells and Weakening Vaccine ResponseThe researchers discovered that once a tattoo is made, the ink rapidly travels through the lymphatic system and, within hours, accumulates in large quantities in the lymph nodes — key organs of the body’s defense system. Inside these nodes, immune cells called macrophages actively capture all types of pigment. This ink uptake triggers an inflammatory response with two phases: an acute phase lasting about two days after tattooing, followed by a chronic phase that can persist for years. The chronic phase is particularly concerning because it weakens the immune system, potentially increasing the susceptibility to infections and cancer. The study also showed that macrophages cannot break down the ink like they would other pathogens, wich causes them to die, especially with red and black inks, suggesting these colors may be more toxic. As a result, ink remains trapped in the lymph nodes in a continuous cycle of capture and cell death, gradually affecting the immune system’s defensive capacity.
The study found that tattooed mice produced significantly lower levels of antibodies after vaccination. This effect is likely due to the impaired function of immune cells that remain associated with tattoo ink for long periods. Similarly, human immune cells previously exposed to ink also showed a weakened response to vaccination.
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Breakthrough in antimatter production- A new cooling technique means that the ALPHA experiment at CERN’s Antimatter Factory can produce antihydrogen atoms eight times faster than before -
Scientists identify five ages of the human brain over a lifetime— Four major turning points around ages nine, 32, 66 and 83 create five broad eras of neural wiring over the average human lifespan.Neuroscientists at the University of Cambridge have identified five “major epochs” of brain structure over the course of a human life, as our brains rewire to support different ways of thinking while we grow, mature, and ultimately decline.
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Early developing human brains are preconfigured with instructions for understanding the worldAssistant Professor of Biomolecular Engineering Tal Sharf’s lab used organoids to make fundamental discoveries about human brain development.