Topic: Health

Researchers at University of Kent and UCL found that madecassic acid, a compound from an Asian medicinal herb, can stop antibiotic-resistant bacteria from growing. This could lead to new treatments for infections.

Madecassic acid is a well-known ingredient in Korean skincare products, but scientists have discovered its bigger role in fighting antibiotic-resistant bacteria. Researchers at the University of Kent and University College London (UCL) combined computer-based screening with laboratory experiments to study this plant-derived compound. They found that madecassic acid has strong antibacterial properties and could be developed into a new treatment for infections.

The researchers studied how madecassic acid works against antibiotic-resistant E. coli bacteria. They found that the compound binds to a protein system in the bacteria's cells, which is not present in humans or animals. This means that madecassic acid disrupts the bacteria's ability to function normally, making it a potential alternative antimicrobial.

The study also modified versions of madecassic acid and found that each variant successfully blocked the cytochrome bd complex and halted bacterial growth. One version was even able to kill E. coli at higher concentrations.

Why It Matters

This discovery is important because antibiotic-resistant infections are becoming harder to treat, and experts estimate that antimicrobial resistance could lead to 39 million deaths between 2025 and 2050. Developing new antibiotics is expensive and slow, so identifying promising compounds from natural sources like madecassic acid is an important step forward.

Key Facts

• Madecassic acid is a compound found in Centella asiatica, a commonly used Asian medicinal herb.
• Researchers at University of Kent and UCL studied how madecassic acid works against antibiotic-resistant E. coli bacteria.
• The compound binds to the cytochrome bd complex, a protein system that bacteria rely on for respiration and survival during infection.
• Madecassic acid disrupts the bacteria's ability to function normally, making it a potential alternative antimicrobial.
• Experts estimate that antimicrobial resistance could lead to 39 million deaths between 2025 and 2050.

Key Terms

Antibiotic-resistant

Bacteria that do not respond to traditional antibiotics.

Implications

This discovery is important because antibiotic-resistant infections are becoming harder to treat, and experts estimate that antimicrobial resistance could lead to 39 million deaths between 2025 and 2050. Developing new antibiotics is expensive and slow, so identifying promising compounds from natural sources like madecassic acid is an important step forward.