Effect of test medium on in vitro susceptibility testing results for Aspergillus fumigatus

Elias Kurian Manavathu; U. Nune; K. Kanuri; P. H. Chandrasekar; O. C. Abraham

Effect of test medium on in vitro susceptibility testing results for Aspergillus fumigatus

Elias Kurian Manavathu, U. Nune, K. Kanuri, P. H. Chandrasekar, O. C. Abraham

Infectious Disease

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We examined the effect of peptone yeast extract glucose broth (PYG), RPMI 1640 and Antibiotic Medium 3 (M3) on the in vitro susceptibility of clinical isolates (n = 200) of Aspergillus fumigatus to amphotericin B (AMB), itraconazole (ITZ) and voriconazole (VCZ). The MICs (μg/mL) of various antifungal agents (geometric mean ± standard deviation) obtained in PYG, RPMI 1640 and M3, respectively, were as follows; AMB: 1.64 ± 0.92, 0.42 ± 0.21, 0.33 ± 0.16; ITZ: 0.44 ± 0.54, 0.40 ± 0.65, 0.17 ± 0.32; VCZ: 0.70 ± 0.58, 0.29 ± 0.22, 0.36 ± 0.21. Pair-wise comparisons of the MICs of AMB, ITZ and VCZ obtained in PYG, RPMI 1640 and M3 showed no significant differences except for AMB in PYG broth compared to those obtained in RPMI 1640 and M3 (p≤0.05). These results suggest that the susceptibility of A. fumigatus to AMB, ITZ and VCZ is similar in growth media currently used for susceptibility testing.

Original language	English (US)
Pages (from-to)	107-110
Number of pages	4
Journal	Revista Iberoamericana de Micologia
Volume	17
Issue number	3
State	Published - Jan 1 2000

Keywords

Antifungal
Aspergillus fumigatus
Broth microdilution
Filamentous fungi
Susceptibility testing

ASJC Scopus subject areas

Microbiology
Infectious Diseases

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Effect of test medium on in vitro susceptibility testing results for Aspergillus fumigatus",

abstract = "We examined the effect of peptone yeast extract glucose broth (PYG), RPMI 1640 and Antibiotic Medium 3 (M3) on the in vitro susceptibility of clinical isolates (n = 200) of Aspergillus fumigatus to amphotericin B (AMB), itraconazole (ITZ) and voriconazole (VCZ). The MICs (μg/mL) of various antifungal agents (geometric mean ± standard deviation) obtained in PYG, RPMI 1640 and M3, respectively, were as follows; AMB: 1.64 ± 0.92, 0.42 ± 0.21, 0.33 ± 0.16; ITZ: 0.44 ± 0.54, 0.40 ± 0.65, 0.17 ± 0.32; VCZ: 0.70 ± 0.58, 0.29 ± 0.22, 0.36 ± 0.21. Pair-wise comparisons of the MICs of AMB, ITZ and VCZ obtained in PYG, RPMI 1640 and M3 showed no significant differences except for AMB in PYG broth compared to those obtained in RPMI 1640 and M3 (p≤0.05). These results suggest that the susceptibility of A. fumigatus to AMB, ITZ and VCZ is similar in growth media currently used for susceptibility testing.",

keywords = "Antifungal, Aspergillus fumigatus, Broth microdilution, Filamentous fungi, Susceptibility testing",

author = "Manavathu, {Elias Kurian} and U. Nune and K. Kanuri and Chandrasekar, {P. H.} and Abraham, {O. C.}",

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T1 - Effect of test medium on in vitro susceptibility testing results for Aspergillus fumigatus

AU - Manavathu, Elias Kurian

AU - Nune, U.

AU - Kanuri, K.

AU - Chandrasekar, P. H.

AU - Abraham, O. C.

PY - 2000/1/1

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N2 - We examined the effect of peptone yeast extract glucose broth (PYG), RPMI 1640 and Antibiotic Medium 3 (M3) on the in vitro susceptibility of clinical isolates (n = 200) of Aspergillus fumigatus to amphotericin B (AMB), itraconazole (ITZ) and voriconazole (VCZ). The MICs (μg/mL) of various antifungal agents (geometric mean ± standard deviation) obtained in PYG, RPMI 1640 and M3, respectively, were as follows; AMB: 1.64 ± 0.92, 0.42 ± 0.21, 0.33 ± 0.16; ITZ: 0.44 ± 0.54, 0.40 ± 0.65, 0.17 ± 0.32; VCZ: 0.70 ± 0.58, 0.29 ± 0.22, 0.36 ± 0.21. Pair-wise comparisons of the MICs of AMB, ITZ and VCZ obtained in PYG, RPMI 1640 and M3 showed no significant differences except for AMB in PYG broth compared to those obtained in RPMI 1640 and M3 (p≤0.05). These results suggest that the susceptibility of A. fumigatus to AMB, ITZ and VCZ is similar in growth media currently used for susceptibility testing.

AB - We examined the effect of peptone yeast extract glucose broth (PYG), RPMI 1640 and Antibiotic Medium 3 (M3) on the in vitro susceptibility of clinical isolates (n = 200) of Aspergillus fumigatus to amphotericin B (AMB), itraconazole (ITZ) and voriconazole (VCZ). The MICs (μg/mL) of various antifungal agents (geometric mean ± standard deviation) obtained in PYG, RPMI 1640 and M3, respectively, were as follows; AMB: 1.64 ± 0.92, 0.42 ± 0.21, 0.33 ± 0.16; ITZ: 0.44 ± 0.54, 0.40 ± 0.65, 0.17 ± 0.32; VCZ: 0.70 ± 0.58, 0.29 ± 0.22, 0.36 ± 0.21. Pair-wise comparisons of the MICs of AMB, ITZ and VCZ obtained in PYG, RPMI 1640 and M3 showed no significant differences except for AMB in PYG broth compared to those obtained in RPMI 1640 and M3 (p≤0.05). These results suggest that the susceptibility of A. fumigatus to AMB, ITZ and VCZ is similar in growth media currently used for susceptibility testing.

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KW - Aspergillus fumigatus

KW - Broth microdilution

KW - Filamentous fungi

KW - Susceptibility testing

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Effect of test medium on in vitro susceptibility testing results for Aspergillus fumigatus

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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