Scientists have developed human embryo-like structures without using sperm, an egg or fertilization, offering hope for research on miscarriage and birth defects but also raising fresh ethical concerns.
Sep 7, 2023
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A significant portion of mammalian genomes are composed of retrotransposable elements (REs). Unlike the previous hypothesis that these are "junk DNA," recent studies have shown that REs such as endogenous retroviruses (ERVs) ...
Sep 6, 2023
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Researchers revealed the importance of the transmission of epigenetic information through cell division for embryonic stem cells functionality. This has broad implications for aging, cancer, and regenerative medicine.
Sep 5, 2023
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Just like a gecko that regrows a broken tail, our peripheral nervous system knows how to regenerate the branches of its cells after an injury. Unfortunately, the cells in our central nervous system—our brain and spinal ...
Aug 31, 2023
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Even though neurodegenerative diseases often strike in middle age or later, patients could have structural differences in their brains that arise before birth.
Aug 22, 2023
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Stem cells are special kinds of cells in our body that can become any other type of cell. They have huge potential for medicine, and trials are currently under way using stem cells to replace damaged cells in diseases like ...
Aug 20, 2023
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A deafened adult cannot recover the ability to hear, because the sensory hearing cells of the inner ear don't regenerate after damage. In two new studies, published in the Proceedings of the National Academy of the Sciences ...
Aug 14, 2023
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What determines whether we become overweight? Aside from lifestyle, predisposition plays a role, but genes cannot fully explain the inherited propensity to accumulate excess weight.
Jul 19, 2023
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Rogue clinics selling stem cell therapies are popping up everywhere. There are thousands of them around the world, and they claim to be able to cure everything from autism to cerebral palsy.
Jul 17, 2023
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Scientists hope to learn more about the earliest stages of human development using models of embryos created from stem cells.
Jul 3, 2023
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