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MIT Study Pushes Back Origins of Aerobic Respiration

Oxygen is a vital and constant presence on Earth today. But that hasn't always been the case. It wasn't until around 2.3 billion years ago that oxygen became a permanent fixture in the atmosphere, during a pivotal period known as the Great Oxidation Event (GOE), which set the evolutionary course for oxygen-breathing life as we know it today.

9 Feb 2026

Formic Acid Drives Novel Electron Transfer in the Gut Bacteria

Researchers at Goethe University Frankfurt have discovered a surprising role for formic acid in the human gut: The small molecule acts as a kind of “taxi” for electrons – both within bacteria and, likely, also between different microorganisms.

9 Feb 2026

Aged Neutrophils With CCL3 Drive Tumor Growth Across Cancers

Renowned as first responders to threatening infections, neutrophils also happen to feature prominently in the microenvironment of tumors, where they and other immune cells play opposing and frequently mutable roles in promoting-or resisting-cancer progression.

6 Feb 2026

Postmortem Human Retinas Recover Neural Light Signals

The ability to restore light responses in human retinas postmortem offers a novel model for studying retinal recovery and developing vision-restoring therapies.

5 Feb 2026

Why The Gut Helps Hypervirulent Bacteria Acquire Antibiotic Resistance

Study shows hypervirulent Klebsiella pneumoniae can acquire drug resistance in the gut, challenging traditional views on antibiotic resistance transmission.

4 Feb 2026

A Hidden Nanomachine Behind Constant Cellular Secretion

Scientists uncover the tiny machine that delivers essential molecular packages to the cell surface, a fundamental activity for maintaining healthy cells.

19 Jan 2026

Replacing Large Mouse Gene Regions with Human DNA

Humanized mouse models are essential for investigating human gene function; however, the complete replacement of mouse genes with entire human sequences has posed significant technical challenges.

19 Jan 2026

New 3D Model Reveals Crucial Interactions During Early Embryo Development

By engineering a system replicating the womb lining with high biological accuracy, researchers at the Babraham Institute and Stanford University have been able to study the implantation of human embryos, opening up this enigmatic process to investigation.

24 Dec 2025

Smart Hydrogel Senses Infected Wounds and Delivers the Right Treatment

The novel hydrogel adapts to wound environments, offering precise antibacterial and regenerative support, addressing the challenges of infected wounds.

18 Dec 2025

Specific Gut Bacteria Found to Control Weight and Blood Fat Levels

The gut microbiome is intimately linked to human health and weight. Differences in the gut microbiome-the bacteria and fungi in the gut-are associated with obesity and weight gain, raising the possibility that changing the microbiome could improve health.

17 Dec 2025

Mitochondrial Supercomplex Protein COX7RP Extends Lifespan and Healthspan

As life expectancy continues to climb globally, the focus of many people has moved from longevity alone to living in good health.

11 Dec 2025

Epigenetic Signatures Explain How Andean Highlanders Thrive in Low Oxygen

DNA sequencing technology makes it possible to explore the genome to learn how humans adapted to live in a wide range of environments.

4 Dec 2025

New Evidence Shows Complex Life Began Far Earlier Than Previously Believed

Complex life began to develop earlier, and over a longer span of time, than previously believed, a groundbreaking new study has revealed.

4 Dec 2025

Study Reveals ATM-Driven Mechanism Behind Telomere-Induced Senescence

After a finite number of divisions, cells simply give up. As each round of replication trims their telomeres-the protective caps at the chromosome ends-those caps eventually become too short to prevent chromosome ends from being recognized as DNA breaks.

2 Dec 2025