Science & Environment
Small histone differences help shape gene regulation during sperm development
Source: Phys.org - latest science and technology news stories · Published
Researchers from Kyushu University have found that H3mm15, a histone H3.3 subvariant, contributes to normal sperm development in mice by helping regulate gene expression during spermatogenesis. The findings show that H3mm15 cannot be interchanged with conventional H3.3; although
Researchers from Kyushu University have found that H3mm15, a histone H3.3 subvariant, contributes to normal sperm development in mice by helping regulate gene expression during spermatogenesis. The findings show that H3mm15 cannot be interchanged with conventional H3.3; although the proteins differ at only three amino acids, they behave differently in chromatin, the DNA-protein structure that packages genetic material.
Related stories
Gene editing could replace a lifetime of medication, but there's a catch
A single gene-editing treatment could someday protect against heart disease, high cholesterol, and other common conditions for decades, potentially replacing lifelong medications. But scientists warn that permanently altering genes introduces risks that could take years to emerge
All Top News -- ScienceDaily ·
Stronger flu shot linked to nearly 55% lower Alzheimer's risk
A surprising new study suggests that a stronger flu shot could offer older adults significantly greater protection against Alzheimer's disease. Researchers at UTHealth Houston analyzed nearly 200,000 adults ages 65 and older and found that those who received a high-dose influenza
All Top News -- ScienceDaily ·
Five-inch-long beetle larvae are quietly destroying blueberry roots
Scientists have solved a mystery surrounding destructive beetles attacking blueberry bushes in North Carolina, identifying a species whose massive larvae can grow up to five inches long and destroy plant roots. Although farmers have reported damage for more than a decade, the ins
All Top News -- ScienceDaily ·
An anti-aging drug may help protect the brain before Alzheimer's symptoms begin
A surprising new study suggests that an anti-aging drug could help protect people genetically predisposed to Alzheimer's disease. Researchers found that just four weeks of low-dose rapamycin improved brain blood flow in healthy middle-aged adults carrying the high-risk APOE4 gene
All Top News -- ScienceDaily ·
Permanent daylight saving time has a dark side, scientists warn
A new study warns that permanent daylight saving time could force American children to make at least 2 billion additional school commutes in darkness, potentially increasing safety risks and disrupting their biological clocks. Researchers found that fatal crashes involving school
All Top News -- ScienceDaily ·