Regeneration is a biological process by which organisms restore or replace lost or damaged tissues, organs, or body parts through controlled cell proliferation, differentiation, and patterning. It involves activation of resident stem or progenitor cells, dedifferentiation of mature cells in some taxa, and re-establishment of appropriate positional information via morphogen gradients and signaling pathways such as Wnt, FGF, BMP, and Notch. Regeneration can be epimorphic, with blastema formation and large-scale pattern reconstruction, or morphallactic, involving extensive tissue remodeling. Its extent and fidelity are species- and tissue-specific, constrained by genetic programs, immune responses, and age-dependent changes in cellular plasticity.
Picture this: your brain is a high-performance engine. Over decades, it doesn't just wear down, it also starts to run hot. Tiny "fires" of inflammation smolder deep within the brain's memory center, creating a persistent ...
Bio & Medicine
23 hours ago
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New research by an interdisciplinary team in Lithuania has revealed a promising and unconventional approach to cartilage regeneration. Using extracellular vesicles derived from menstrual blood stromal cells, the researchers ...
Bio & Medicine
Apr 10, 2026
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Some animals can regrow lost body parts. Salamanders and frog tadpoles can rebuild entire limbs after amputation. Mammals cannot. For decades, biologists have tried to understand why. Now a team led by Can Aztekin at EPFL ...
Plants & Animals
Apr 9, 2026
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A new Yale study of flatworms, a species with the unique ability to regenerate, reveals that disruptions in the body's internal map of cellular organization may play a part in age-related decline.
Cell & Microbiology
Apr 8, 2026
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Biobots, whose growing line of variants started with xenobots, are fascinating tiny self-powered living robots built exclusively using frog embryonic cells. Originally developed in the laboratories of Wyss Institute Associate ...
Cell & Microbiology
Mar 16, 2026
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Photoreceptors are specialized cells in the eye that convert light energy into neural signals. Several diseases that cause irreversible vision loss, including age-related macular degeneration, retinitis pigmentosa and retinal ...
Cell & Microbiology
Mar 14, 2026
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Plants pause their growth during stress, then press play when conditions improve, helping them recover and live on to produce food, according to a new study published in New Phytologist. UBC researchers have pinpointed the ...
Plants & Animals
Mar 11, 2026
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Swallowing is a fundamental human function that supports nutrition and communication. Damage to swallowing muscles can reduce quality of life and even lead to aspiration pneumonia or malnutrition. Many patients suffer from ...
Bio & Medicine
Mar 11, 2026
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Scientists have discovered a key biological safeguard that helps one of nature's most impressive regenerators, the planarian flatworm, correctly rebuild its organs. The new research, published in Nature Communications, illuminates ...
Cell & Microbiology
Mar 2, 2026
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Hair regrowth treatment may soon take a major leap forward, as researchers in a recent study have successfully grown complete, fully functional hair follicles outside of the living body, in a dish. This was made possible ...
