Observations placeholder

Asafoetida and bacteria

Identifier

006980

Type of Spiritual Experience

Background

Staphylococcus aureus is a bacterium that is a member of the Firmicutes, and is frequently found in the human respiratory tract and on the skin. Although S. aureus is not always pathogenic, it is a common cause of skin infections (e.g. boils), respiratory disease (e.g. sinusitis), and food poisoning.

A description of the experience

Planta Med. 2013 May;79(8):701-6. doi: 10.1055/s-0032-1328461. Epub 2013 May 13. Antibacterial sesquiterpenoid derivatives from Ferula ferulaeoides. Liu T1, Osman K, Kaatz GW, Gibbons S, Mu Q. School of Pharmacy, Fudan University, Shanghai, China.

Three new sesquiterpenoid derivatives 1, 2, and 3 were isolated from Ferula ferulaeoides. To confirm the structure, compound 2 was also synthesized via a condensation reaction between compound 1 and 2,2-dimethoxypropane. The structures of these three compounds were elucidated by means of spectroscopic and chemical methods. Their antibacterial activity against drug-resistant Staphylococcus aureus strains were evaluated with MIC values in the range of 0.5-128 µg/mL. Compounds 1 and 3 were capable of inhibiting efflux of ethidium bromide using an in vitro assay. The cytotoxicity of the compounds was evaluated on cultured HEK293 cells, and none of them showed toxicity to HEK293 cells at a concentration of 125 µg/mL.

Georg Thieme Verlag KG Stuttgart · New York.

PMID: 23670622

The source of the experience

PubMed

Concepts, symbols and science items

Concepts

Symbols

Science Items

Activities and commonsteps

Commonsteps

References