Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-12-29
pubmed:abstractText
MK-0991 (formerly L-743,872) is a water soluble semisynthetic echinocandin that possess potent, broad-spectrum antifungal activity. We evaluated the in vitro activity of MK-0991 and an echinocandin derivative LY303366, compared with that of itraconazole, fluconazole, amphotericin B and 5-flucytosine against 400 blood stream isolates of Candida spp. (nine species) obtained from more than 30 different medical centers. MICs for all antifungal drugs were determined by the NCCLS method using RPMI 1640 test medium. Both MK-0991 and LY303366 were very active against all Candida spp. isolates (MIC90, 0.25 and 1 microgram/mL, respectively). MK-0991 was two-fold to 256-fold more active than amphotericin B, fluconazole, itraconazole (except against C. parapsilosis), and 5-flucytosine (except against C. glabrata and C. parapsilosis). LY303366 was comparable to MK-0991, but was fourfold less active against C. tropicalis (MIC90, 0.5 versus 0.12 microgram/mL) and C. parapsilosis (MIC90, > 2 versus 1 microgram/mL). All of the isolates for which fluconazole and itraconazole had elevated MICs (> or = 64 micrograms/mL and > or = 1 microgram/mL, respectively) were inhibited by < or = 0.5 microgram/mL of MK-0991 and LY303366. These results suggest both MK-0991 and LY303366 possess promising antifungal activity and further in vitro and in vivo investigations are warranted.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0732-8893
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
33-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Activity of MK-0991 (L-743,872), a new echinocandin, compared with those of LY303366 and four other antifungal agents tested against blood stream isolates of Candida spp.
pubmed:affiliation
Department of Pathology, University of Iowa College of Medicine, Iowa City 52242, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't