pegasus
Strony: [1]
  Drukuj  
Autor Wątek: Olejek z drzewa herbacianego (tea tree oil, Melaleuca)  (Przeczytany 2398 razy)
0 użytkowników i 1 Gość przeglądają ten wątek.
asinek
UNO

Offline Offline

wiadomości: 2776


skarbonka na smutki


« : Lipiec 20, 2007, 19:52:21 »

Wg badan pani McMahon z Uniwersytetu w Ulster olejek drzewa herbacianego moze miec niepozadane skutki uboczne. Olej ten jest uzywany ze wzgledu na dzialanie bakteriobojcze, najczesciej w preparatach przeciwtradzikowych. Okazuje sie jednak ze ow olejek uzyty w zbyt niskim stezeniu zamiast usmiercac bakterie uodparnia je na niektore antybiotyki.

http://tinyurl.com/2xsgdv
Cytuj
Habituation to sub-lethal concentrations of tea tree oil (Melaleuca alternifolia) is associated with reduced susceptibility to antibiotics in human pathogens.McMahon MA, Blair IS, Moore JE, McDowell DA.
Food Microbiology Research Group, University of Ulster, Newtownabbey, Northern Ireland BT37 OQB, UK. ma.mcmahon@ulster.ac.uk

OBJECTIVES: To investigate the effect of sub-lethal challenge with tea tree oil (TTO) on the antibiotic susceptibility profiles of significant human pathogens and commensals. METHODS: The study compared the antibiotic susceptibility (Etest) patterns of Escherichia coli, Staphylococcus aureus/methicillin-resistant S. aureus (MRSA) and Salmonella spp. after broth culture for 72 h in the presence or absence of sub-lethal concentrations of TTO (0.25%, 0.25% and 0.1%). RESULTS: All habituated cultures (exposed to sub-lethal concentrations of TTO) displayed reduced susceptibility to a range of clinically relevant antibiotics compared with non-habituated (control) cultures. CONCLUSIONS: Although TTO may be an effective antimicrobial agent when appropriately used at bactericidal concentrations, its application at sub-lethal concentrations may contribute to the development of antibiotic resistance in human pathogens.

PMID: 17071952 [PubMed - indexed for MEDLINE]

(temat zostanie uzupelniony)
« Ostatnia zmiana: Styczeń 11, 2009, 16:23:31 wysłane przez Pucca » Zapisane

hey do you do judo when they surround you, a little mental yoga - would they dissapear? (T.Amos "Purple People")


Strony: [1]
  Drukuj  
 
Skocz do: