Cranberrysaft kann die Antibiotikagabe bei Harnwegsinfektionen verstärken. Forscher setzten im Labor gezüchtete Stämme pathogener E. coli Cranberrysaft aus. Die im Saft enthaltenen Verbindungen resensibilisieren resistente Stämme gegenüber einer Antibiotikabehandlung.

New Study Shows Cranberry Juice May Boost UTI Antibiotics

Key Points:

More than 400 million people get urinary tract infections every year, and the rise of antibiotic resistance makes the infection more difficult to treat.

Researchers recently exposed lab-grown strains of pathogenic Escherichia coli to cranberry juice.

New findings suggest that compounds in the juice re-sensitize resistant strains to antibiotic treatment.

More than 400 million people experience a urinary tract infection every year, and some epidemiological studies estimate that more than half of all women will develop at least 1 in their lifetime. Most UTIs are caused by pathogenic strains of Escherichia coli bacteria, and the antibiotic fosfomycin is often prescribed as the first line of treatment. However, increasing resistance to antibiotics is driving a search for alternative approaches to treatment.

New findings suggest that cranberry juice may lend a helping hand to antibiotics—at least on lab-grown strains. This week in Applied and Environmental Microbiology, researchers report that in 72% of uropathogenic E. coli strains tested, cranberry juice both boosted the antibiotic activity of fosfomycin and suppressed the emergence of mutations related to resistance. The work is promising but preliminary, noted lead author and microbiologist Eric Déziel, Ph.D, at the Institut National de la Recherche Scientifique in Montreal, Canada.

https://journals.asm.org/doi/10.1128/aem.02521-25

I thought this was relatively well known. As someone who has various GI + kidney issues, i’ve been told several times by urologists that cranberry juice (NOT the sugary kind) is a good thing to drink during flareups.

This is why I have little faith in the scientific community.

It’s been known for years.