Radiation will yield

Cross section of the zebrafish heart 30 days after injury. The injured site (marked by an arrow) without a scar in a fish with normal lymphatic vessels (left) but not in a mutant fish that does not have these vessels (right)

heart of a fish

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Transient aging: Zebrafish (top row), newborn mouse (middle row) and adult mouse (bottom row) hearts are seen (left column) with almost no senescent fibroblasts (indicated in turquoise). After injury to the heart muscle (accompanying agrin injections in an adult mouse), many fibroblasts went into a state of senescence (middle column), which passed about three weeks later (right column)

Aging cells, young heart

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The endothelial cells, which make up the blood vessels of the zebrafish embryo (in red). The cell nuclei are marked in yellow. The stem cell pool is marked with an arrow

Wandering with gut feeling

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From the right: Dr. Karina Yaniv, Guy Melkinson, Inbal Avraham-Davidi, Moshe Greenspan, Liron Gibbs Bar, Oded Meisels and Yona Eli. Dialogue. Photo: Weizman Institute

Dialogue in the dark

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Dr. Karina Yaniv. Molecular signals

between the fat and the blood

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