Tag: bone marrow
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Two Parallel Blood Formation Systems Reveal Distinct Precursor Cells and Immune Profiles
Two Parallel Hematopoietic Systems: A New Layer in Blood Formation In a development that challenges long-standing views of how the blood and immune system are formed, researchers at the German Cancer Research Center (DKFZ) have demonstrated the existence of two parallel hematopoietic systems in the human body. These systems originate from distinct precursor cells and…
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Hypoxia Reprograms Neutrophils: Long-Term Immune Impact
Hypoxia and the immune system: a surprising link Scientists are uncovering how low oxygen levels, or hypoxia, can do more than cause immediate trouble breathing. New research suggests that hypoxia can reprogram a key group of immune cells—neutrophils—by changing the way their genetic material is packaged. This finding points to a lasting impact on the…
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Hypoxia Alters Neutrophil DNA, Weakening Infection Defense
New findings link low oxygen to lasting changes in neutrophils Hypoxia, or low blood oxygen, is not only a short-term stress on the body. New research shows it can reprogram a crucial immune cell—neutrophils—by altering the way their genetic material is packaged and read. This discovery helps explain why people who recover from severe lung…
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Lab-Grown Embryo Models Produce Blood Cells: A Leap for Regenerative Medicine
Overview: A Breakthrough in Lab-Grown Embryo Models Scientists have created embryo-like structures in the lab using stem cells that can generate human blood cells. This milestone marks a significant step in regenerative medicine by showing that blood stem cells can arise from a controlled, embryo-friendly developmental process outside the womb. The achievement suggests new pathways…
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AVATAR: NASA’s Organ-on-a-Chip for Space Health
NASA’s AVATAR Project: A Miniature Health Monitor for Deep Space As NASA gears up for another leap in lunar exploration with the Artemis II mission, the agency is testing a radical idea: health monitoring that travels with the crew on a chip. The AVATAR project (A Virtual Astronaut Tissue Analog Response) places astronaut-derived tissue samples…
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NASA’s AVATAR Chips: Pioneering Space Health by Testing Astronaut Tissues in Orbit
NASA’s AVATAR Chips: A Bold Step in Space Health As NASA prepares for the Artemis II mission, researchers are not only aiming to reach the Moon but to understand the human body’s response to deep-space travel. A key experiment in this effort is AVATAR — A Virtual Astronaut Tissue Analog Response — which places astronaut-derived…