Publications by authors named "Cristina Dislich Ropke"

Despite the vast global botanical diversity, the pharmaceutical development of herbal medicinal products (HMPs) remains underexploited. Of over 370,000 described plant species, only a few hundred are utilized in HMPs. Most of these have originated from traditional use, and only a minority come from megadiverse countries.

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Enterococci are gram-positive, widespread nosocomial pathogens that in recent years have developed resistance to various commonly employed antibiotics. Since finding new infection-control agents based on secondary metabolites from organisms has proved successful for decades, natural products are potentially useful sources of compounds with activity against enterococci. Herein are reported the results of a natural product library screening based on a whole-cell assay against a gram-positive model organism, which led to the isolation of a series of anacardic acids identified by analysis of their spectroscopic data and by chemical derivatizations.

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Article Synopsis
  • This study investigated the effects of Pothomorphe umbellata extract on skin damage caused by UVB radiation in hairless mice.
  • Results showed that UVB exposure decreased thymine dimer-positive and apoptotic cells, while increasing p53 and proliferating cell nuclear antigen-positive cells.
  • After prolonged UVB exposure, treatment with P. umbellata led to reduced skin hyperplasia and an increase in protective p53-positive cells, indicating its potential to protect against UVB-induced skin damage.
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