scholarly journals Prophylactic Administration of Liposomal Amphotericin B Is Superior to Treatment in a Murine Model of Invasive Aspergillosis after Hematopoietic Cell Transplantation

2002 ◽  
Vol 186 (1) ◽  
pp. 134-137 ◽  
Author(s):  
Andrew BitMansour ◽  
Janice M. Y. Brown
Keyword(s):  
Invasive Aspergillosis ◽  
Amphotericin B ◽  
Cell Transplantation ◽  
Murine Model ◽  
Liposomal Amphotericin ◽  
Hematopoietic Cell Transplantation ◽  
Hematopoietic Cell ◽  
Liposomal Amphotericin B ◽  
Prophylactic Administration

Combination therapy with caspofungin and liposomal amphotericin B for invasive aspergillosis

2003 ◽  
Vol 22 (7) ◽  
pp. 653-656 ◽  
Author(s):  
ZIJU ELANJIKAL ◽  
JAN SÖRENSEN ◽  
HELGA SCHMIDT ◽  
WOLFGANG DUPUIS ◽  
KATHRIN TINTELNOT ◽  
...  
Keyword(s):  
Combination Therapy ◽  
Invasive Aspergillosis ◽  
Amphotericin B ◽  
Liposomal Amphotericin ◽  
Liposomal Amphotericin B

scholarly journals Sequential or Combination Antifungal Therapy with Voriconazole and Liposomal Amphotericin B in a Guinea Pig Model of Invasive Aspergillosis

2006 ◽  
Vol 50 (4) ◽  
pp. 1567-1569 ◽  
Author(s):  
William R. Kirkpatrick ◽  
Brent J. Coco ◽  
Thomas F. Patterson
Keyword(s):  
Guinea Pig ◽  
Invasive Aspergillosis ◽  
Amphotericin B ◽  
Antifungal Therapy ◽  
Liposomal Amphotericin ◽  
Pig Model ◽  
Liposomal Amphotericin B ◽  
Guinea Pig Model

ABSTRACT We evaluated combinations of voriconazole (VRC) and liposomal amphotericin B (L-AMB) in a guinea pig invasive aspergillosis model. Simultaneous VRC and L-AMB was most effective, although VRC monotherapy was also effective. These regimens as well as sequential L-AMB followed by VRC were more effective than L-AMB alone or VRC followed by L-AMB.

scholarly journals Successfully treated severe COVID‐19 and invasive aspergillosis in early hematopoietic cell transplantation setting

2020 ◽  
Author(s):  
Manuela Spadea ◽  
Francesca Carraro ◽  
Francesco Saglio ◽  
Elena Vassallo ◽  
Rosanna Pessolano ◽  
...  
Keyword(s):  
Invasive Aspergillosis ◽  
Cell Transplantation ◽  
Hematopoietic Cell Transplantation ◽  
Hematopoietic Cell

scholarly journals In Vivo Efficacy of Liposomal Amphotericin B against Wild-Type and Azole-Resistant Aspergillus fumigatus Isolates in Two Different Immunosuppression Models of Invasive Aspergillosis

2017 ◽  
Vol 61 (6) ◽  
Author(s):  
Seyedmojtaba Seyedmousavi ◽  
Johan W. Mouton ◽  
Willem J. G. Melchers ◽  
Paul E. Verweij
Keyword(s):  
Invasive Aspergillosis ◽  
Aspergillus Fumigatus ◽  
Amphotericin B ◽  
Liposomal Amphotericin ◽  
Treated Group ◽  
Liposomal Amphotericin B ◽  
Wild Type ◽  
Resistance Mutations ◽  
Content Type

ABSTRACT Using an immunocompetent murine model of invasive aspergillosis (IA), we previously reported that the efficacy of liposomal amphotericin B (L-AmB) (Ambisome) is not hampered by the presence of azole resistance mutations in Aspergillus fumigatus (S. Seyedmousavi, W. J. G. Melchers, J. W. Mouton, and P. E. Verweij, Antimicrob Agents Chemother 57:1866–1871, 2013, https://doi.org/10.1128/AAC.02226-12 ). We here investigated the role of immune suppression, i.e., neutropenia and steroid treatment, in L-AmB efficacy in mice infected with wild-type (WT) A. fumigatus and with azole-resistant A. fumigatus harboring a TR34/L98H mutation in the cyp-51A gene. Survival of treated animals at day 14 in both immunosuppressed models was significantly better than that of nontreated controls. A dose-response relationship was observed that was independent of the azole-resistant mechanism and the immunosuppression method used. In the neutropenic model, 100% survival was reached at an L-AmB dose of 16 mg/kg of body weight for the WT strain and the TR34/L98H isolate. In the steroid-treated group, 90.9% survival and 100% survival were achieved for the WT isolate and the TR34/L98H isolate with an L-AmB dose of 16 mg/kg, respectively. The 50% effective dose (ED50) was 1.40 mg/kg (95% confidence interval [CI], 0.66 to 3.00 mg/kg) for the WT isolate and 1.92 mg/kg (95% CI, 0.60 to 6.17 mg/kg) for the TR34/L98H isolate in the neutropenic model and was 2.40 mg/kg (95% CI, 1.93 to 2.97 mg/kg) for the WT isolate and 2.56 mg/kg (95% CI, 1.43 to 4.56 mg/kg) for the TR34/L98H isolate in the steroid-treated group. Overall, there were no significant differences between the two different immunosuppressed conditions in the efficacy of L-AmB against the wild-type and azole-resistant isolates (P > 0.9). However, the required L-AmB exposure was significantly higher than that seen in the immunocompetent model.

scholarly journals Liposomal Amphotericin B, and Not Amphotericin B Deoxycholate, Improves Survival of Diabetic Mice Infected with Rhizopus oryzae

2003 ◽  
Vol 47 (10) ◽  
pp. 3343-3344 ◽  
Author(s):  
Ashraf S. Ibrahim ◽  
Valentina Avanessian ◽  
Brad Spellberg ◽  
John E. Edwards
Keyword(s):  
Overall Survival ◽  
Body Weight ◽  
Amphotericin B ◽  
Murine Model ◽  
Liposomal Amphotericin ◽  
Rhizopus Oryzae ◽  
Liposomal Amphotericin B ◽  
High Dose ◽  
Diabetic Mice ◽  
Amphotericin B Deoxycholate

ABSTRACT The efficacies of liposomal amphotericin B (LAmB) and amphotericin B deoxycholate (AmB) were compared in a diabetic murine model of hematogenously disseminated Rhizopus oryzae infection. At 7.5 mg/kg of body weight twice a day (b.i.d.), LAmB significantly improved overall survival compared to the rates of survival in both untreated control mice (P = 0.001) and mice treated with 0.5 mg of AmB per kg b.i.d. (P = 0.047). These data indicate that high-dose LAmB is more effective than AmB in treating murine disseminated zygomycosis.

scholarly journals Efficacy of Nebulized Liposomal Amphotericin B in Treatment of Experimental Pulmonary Aspergillosis

2005 ◽  
Vol 49 (7) ◽  
pp. 3028-3030 ◽  
Author(s):  
Joan Gavaldà ◽  
María-Teresa Martín ◽  
Pedro López ◽  
Xavier Gomis ◽  
José-Luís Ramírez ◽  
...  
Keyword(s):  
Amphotericin B ◽  
Murine Model ◽  
Liposomal Amphotericin ◽  
Invasive Pulmonary Aspergillosis ◽  
Liposomal Amphotericin B ◽  
Pulmonary Aspergillosis ◽  
Lower Lung

ABSTRACT The efficacy of therapeutic aerosolized amphotericin B (AMB) was studied in a steroid-immunosuppressed murine model of invasive pulmonary aspergillosis. Nebulized liposomal AMB can be a valid approach to the treatment of this infection, with subjects showing significantly improved survival relative to that of subjects given intravenous deoxycholate AMB, as well as lower lung weights and pulmonary glucosamine levels.

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