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How cells correct errors under time pressure

A new mathematical theory explains how cells navigate the risk-speed tradeoff when dividing, balancing risk and speed to ensure survival. The theory applies broadly to all organisms, despite differences between yeast and mammalian cells.

Jellyfish's 'superpowers' gained through cellular mechanism

Researchers at Tohoku University have discovered the cellular mechanisms behind jellyfish's remarkable ability to regenerate body parts. The study found that free-swimming adult jellyfish possess actively proliferating cells controlling body-size, tentacle shape, and regeneration.

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The neural circuitry of parental behavior

Researchers have identified a network of brain cells that orchestrate parental behavior in mice, including hormonal changes and altered social behaviors. The discovery could one day help develop treatments for postpartum depression and other related conditions.

Some neurons choose mom's gene and others choose dad's

Research reveals that individual neurons or specific types of neurons can silence genes from one parent or the other, particularly during brain development. As the brain matures, these differences tend to decrease, but some genes continue to exhibit differential expression in adult brains.

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Genomic imprinting gets complicated in adults

A recent study found that genomic imprinting, a process silencing one set of parental genes, can be regulated in adult tissues. The researchers observed variation in epigenetic marks between cell types, indicating a need for fine-tuned gene expression in different tissues throughout development and adulthood.

MSU discovers a new kind of stem cell

Researchers at Michigan State University have discovered a new type of induced Xen (iXEN) stem cells that can be created by reprogramming mature adult cells. These cells have unique properties and can shed light on reproductive diseases, potentially leading to advances in regenerative medicine.

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'Parent' cells reset the cell division clock

Researchers have discovered that cell division time is programmed by the 'parent' cell and varies between parent and offspring cells. The study's findings challenge a 40-year-old theory on cell division and provide a new model to predict how populations of cells divide.

Protein changes are discovered that control whether a gene functions

A Penn State-led research team found that histone protein changes can control whether a gene functions, with the potential to maintain genetic expression and prevent disease. The study's findings have significant implications for the study of diseases like cancer and understanding cellular behavior.

Caltech team says sporulation may have given rise to the bacterial outer membrane

Researchers at Caltech used powerful imaging technique to study Acetonema longum, a bacterium with two membranes that responds to extreme situations by forming protective spores. The study found that the outer membrane may have originated from an inner membrane during sporulation, providing insights into its evolution and function.

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New role found for a cardiac progenitor population

Researchers at the University of California - San Diego have found that parent cells involved in embryonic development can generate three important types of cells with potential for cardiac repair. The study suggests that restoring the ability of adult epicardial cells to generate cardiomyocytes may enhance their future potential for c...

Aging boosts chances that a family line will be long-lived

A new study suggests that aging has evolved as a strategy to allow family lines to persist longer. By concentrating cellular damage in one individual, the rest of the line can continue to reproduce without harm. This asymmetric reproduction method may be favored by evolution due to its potential to increase longevity.

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