Lab-grown sperm: scientists inch closer to fertility breakthrough
Researchers are trying to make human sperm (shown here in a colourized electron microscope image) from stem cells…
Cell transplant across the tree of life hints at how animals emerged
Researchers transplanted cells between embryos of a comb jelly (Mnemiopsis leidyi, right) and a starlet sea anemone (Nematostella…
Cannibal ‘supergiant’ microbe found hunting and devouring members of own species
Scientists have documented for the first time a microbe that drastically transforms its size, shape, and behaviour into…
Space embryos: China launches lab-grown human cells into orbit to study reproduction
China has sent artificially constructed human embryo models to the Tiangong space station, marking the first known attempt…
The misunderstood sex chromosome: how X affects your health
Cholesterol-lowering statins are among the most widely prescribed drugs in the world. They can have side effects, however,…
Single-cell spatiotemporal dissection of the human maternal–fetal interface
Tissue acquisition and processing for joint single-nucleus multiome profiling and spatial transcriptomics Snap-frozen decidual and basal plate samples…
Systemic epigenetic dysregulation as a driver of ageing and a therapeutic target
Guo, J. et al. Aging and aging-related diseases: from molecular mechanisms to interventions and treatments. Signal. Transduct. Target.…
Can a mouse be cloned indefinitely? Decades-long experiment has answers
Scientists harvested eggs from 25th-generation cloned mice and fertilized the eggs, which grew into these early-stage embryos. Credit:…
Brain differences between sexes get more pronounced from puberty
Credit: Cavan Images/Getty Some sex differences in brain-connectivity patterns become more pronounced with age, according to new research.…
Sending babies to nursery completely reshapes their microbiomes
Infants’ microbiomes are strongly affected by what they eat and who they come into contact with.Credit: Getty A…