scholarly journals Analysis of protease inhibitor combinations in vitro: activity of lopinavir, amprenavir and tipranavir against HIV type 1 wild-type and drug-resistant isolates

2004 ◽  
Vol 53 (3) ◽  
pp. 464-468 ◽  
Author(s):  
E. Bulgheroni
Keyword(s):  
Protease Inhibitor ◽  
Vitro Activity ◽  
Drug Resistant ◽  
In Vitro Activity ◽  
Wild Type ◽  
Hiv Type 1

scholarly journals Hydroxyurea Enhances the Activities of Didanosine, 9-[2-(Phosphonylmethoxy)ethyl]adenine, and 9-[2-(Phosphonylmethoxy)propyl]adenine against Drug-Susceptible and Drug-Resistant Human Immunodeficiency Virus Isolates

1999 ◽  
Vol 43 (8) ◽  
pp. 2046-2050 ◽  
Author(s):  
Sarah Palmer ◽  
Robert W. Shafer ◽  
Thomas C. Merigan
Keyword(s):  
Human Immunodeficiency Virus ◽  
Drug Resistant ◽  
Wild Type ◽  
Immunodeficiency Virus ◽  
Hiv Type 1 ◽  
Virus Isolates ◽  
Hiv 1

ABSTRACT We assessed the effects of hydroxyurea (HU) at a concentration of 50 μM on the in vitro activities of 2′,3′-dideoxyinosine (ddI), 9-[2-(phosphonylmethoxy)ethyl]adenine (PMEA), and 9-[2-(phosphonylmethoxy)propyl]adenine (PMPA) against a wild-type human immunodeficiency virus (HIV) type 1 (HIV-1) laboratory isolate and a panel of five well-characterized drug-resistant HIV isolates. Fifty micromolar HU significantly increased the activities of ddI, PMEA, and PMPA against both the wild-type and the drug-resistant HIV-1 isolates. In fixed combinations, both ddI and PMEA were synergistic with HU against wild-type and drug-resistant viruses.

scholarly journals In Vitro Activity of Rifamycin Derivatives against Nontuberculous Mycobacteria, Including Macrolide- and Amikacin-Resistant Clinical Isolates

2021 ◽  
Vol 65 (5) ◽  
Author(s):  
Dae Hun Kim ◽  
Su-Young Kim ◽  
Hee Jae Huh ◽  
Nam Yong Lee ◽  
Won-Jung Koh ◽  
...  
Keyword(s):  
Mycobacterium Avium ◽  
Nontuberculous Mycobacteria ◽  
Therapeutic Option ◽  
Vitro Activity ◽  
Clinical Isolates ◽  
Drug Resistant ◽  
In Vitro Activity ◽  
Content Type ◽  
Resistant Disease

ABSTRACT We evaluated the in vitro activity of rifamycin derivatives, including rifampin, rifapentine, rifaximin, and rifabutin, against clinical nontuberculous mycobacteria (NTM) isolates. Of the rifamycin derivatives, rifabutin showed the lowest MICs against all NTM species, including Mycobacterium avium complex, M. abscessus, and M. kansasii. Rifabutin also had effective in vitro activity against macrolide- and aminoglycoside-resistant NTM isolates. Rifabutin could be worth considering as a therapeutic option for NTM disease, particularly drug-resistant disease.

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