Penicillin redux: Rearming proven warriors for the 21st century

- Conjugates of a beta-lactam antibiotic with the team?s metallopolymer had enhanced antimicrobial properties compared with the antibiotic alone. The effect was particularly striking with hospital-associated MRSA (left).

– Conjugates of a beta-lactam antibiotic with the team?s metallopolymer had enhanced antimicrobial properties compared with the antibiotic alone. The effect was particularly striking with hospital-associated MRSA (left).

Penicillin, one of the scientific marvels of the 20th century, is currently losing a lot of battles it once won against bacterial infections. But scientists at the University of South Carolina have just reported a new approach to restoring its combat effectiveness, even against so-called “superbugs.”

Bacteria have been chipping away at the power of the penicillin family of drugs since their first wide-scale use as antibiotics in the 1940s. For example, the staph infection, brought about by the bacterium Staphylococcus aureus, was once readily treated with penicillin and its molecular cousins.

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Night owls, unlike early birds, tend to be unmarried risk-takers

“Night owls, both males and females, are more likely to be single or in short-term romantic relationships versus long-term relationships, when compared to early birds,” Maestripieri said. “In addition, male night owls reported twice as many sexual partners than male early birds.”