Genetics

114 articles with this tag

How Gene Therapy for Deafness Works—One Injection Science

How Gene Therapy for Deafness Works—One Injection

Scientists can now restore hearing in people born deaf by injecting functional genes directly into the inner ear. Here's how the therapy works, which...

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How CRISPRa Activates Genes Without Cutting DNA Science

How CRISPRa Activates Genes Without Cutting DNA

CRISPRa uses a deactivated version of the CRISPR protein to turn genes on without making any cuts to DNA, opening doors to reversible treatments for g...

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What Are Organoids and How They Replace Animal Testing Science

What Are Organoids and How They Replace Animal Testing

Organoids are lab-grown miniature organs derived from stem cells that mimic human tissue. As regulators phase out mandatory animal testing, these tiny...

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How Cell-Free Protein Synthesis Works—and Why It Matters Science

How Cell-Free Protein Synthesis Works—and Why It Matters

Cell-free protein synthesis lets scientists produce proteins without living cells, dramatically speeding up drug discovery, vaccine development, and b...

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How a Father's Health Before Conception Shapes His Baby Science

How a Father's Health Before Conception Shapes His Baby

Research reveals that a father's diet, stress, and lifestyle alter sperm epigenetics—chemical tags on DNA—that can influence offspring health for gene...

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How Gut Bacteria Inject Proteins Into Your Cells Science

How Gut Bacteria Inject Proteins Into Your Cells

Harmless gut bacteria wield syringe-like molecular machines called type III secretion systems to inject proteins directly into human cells, shaping im...

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What Is Long COVID and Why Does It Persist for Years? Health

What Is Long COVID and Why Does It Persist for Years?

Long COVID affects hundreds of millions worldwide, with symptoms lasting months or years after infection. Scientists have identified viral persistence...

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What Are Lysosomes and Why Your Cells Need Them Science

What Are Lysosomes and Why Your Cells Need Them

Lysosomes are membrane-bound organelles that serve as the cell's recycling centers, breaking down waste and damaged components. When they malfunction,...

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How Sex Testing in Sports Works—and Why It's So Hard Sport

How Sex Testing in Sports Works—and Why It's So Hard

From nude parades to genetic screening, sex verification in elite sports has a troubled 90-year history. The science is far more complicated than any...

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Scientists Grow First Lab-Made Esophagus in Major Win Science

Scientists Grow First Lab-Made Esophagus in Major Win

Researchers at Great Ormond Street Hospital and UCL have created the first functional lab-grown esophagus, successfully implanting it in pigs that cou...

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What Is NAD+ and Why Your Cells Need It to Age Well Science

What Is NAD+ and Why Your Cells Need It to Age Well

NAD+ is a molecule essential for energy production, DNA repair, and over 300 enzymatic reactions. Its sharp decline with age is linked to disease and...

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How Metformin Works—and Why It Does More Than Expected Health

How Metformin Works—and Why It Does More Than Expected

Metformin is the world's most prescribed diabetes drug, taken by over 150 million people yearly. Scientists are still uncovering how it works, includi...

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