Four-legged friend or foe? Dog walking displaces native birds from natural areas

Four-legged friend or foe? Dog walking displaces native birds from natural areas.

Dog walking is among the world's most popular recreational activities, attracting millions of people to natural areas each year with diverse benefits to human and canine health. But conservation managers often ban dog walking from natural areas fearing that wildlife will see dogs as potential predators and abandon their natural habitats, resulting in outcry at the restricted access to public la...

Lightning-Season Burning: Friend or Foe of Breeding Birds?

Antioxidants - friend or foe?

Particularly in the field of advertising and in popular scientific journals, antioxidants such as β-carotene (from carrots) or lycopenes (from tomatoes) and the vitamins C and E are one-sidedly portrayed as substances capable of offering protection against cancer or ageing because they diminish or prevent the effects of free radicals. However, free radicals should by nomeans be considered as be...

Friend or foe

For many years, β-defensins were best known for their antimicrobial activity. However, β-defensins also exert immunomodulatory functions, such as the chemotactic recruitment of immune cells via chemokine receptors. We demonstrated that mouse β-defensin 14 recruits CCR6(+) B cells into fibrosarcomas, resulting in enhanced angiogenesis and tumor development.

Nanofibers: Friend or Foe?

Alke Petri-Fink 1, Barbara Rothen-Rutishauser 1 and Martin J. D. Clift 1,2,* 1 BioNanomaterials, Adolphe Merkle Institute, University of Fribourg, Rte de l’Ancienne Papeterie, Marly 1, 1723 Fribourg, Switzerland; [email protected] (A.P.-F.); [email protected] (B.R.-R.) 2 Swansea University Medical School, Singleton Park Campus, Swansea University, Swansea, Wales SA2 8PP, UK * Corresponde...