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Träfflista för sökning "WFRF:(Rosenthal Philip J) srt2:(2010-2014)"

Sökning: WFRF:(Rosenthal Philip J) > (2010-2014)

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1.
  • Bjelosevic, Haris, et al. (författare)
  • Platinum(II) and gold(I) complexes based on 1,1 '-bis(diphenylphosphino)metallocene derivatives: Synthesis, characterization and biological activity of the gold complexes
  • 2012
  • Ingår i: Journal of Organometallic Chemistry. - : Elsevier BV. - 0022-328X. ; 720, s. 52-59
  • Tidskriftsartikel (refereegranskat)abstract
    • The synthesis of series of 1,2,1' substituted bis(diphenylphosphino)- ruthenocenyl (1-4) and ferrocenyl cis-platinum(II) (5-7) and gold(I) (8-12) complexes are described. Crystal structures of 2 and 4, as well as 5, 6 and 10 confirm the molecular geometry of these ligands and their metal complexes. Preliminary investigation of four gold complexes as potential anticancer, antiHIV and antimalaria showed at least one gold compound that has excellent activity towards one of these diseases. The three gold(I) complexes, {1- [1-(dimethylamino)ethyl]-1 ,2-bis(diphenylphosphino)ruthenocene-kappa P-2,P'}bis[chlorogold(I)] (8) (IC50 = 1.40 mu M), {1-[1-(acetoxyethyl)-1',2-bis(diphenylphosphino)ferrocene-kappa P-2,P']bis[chlorogold(1)] (9) (IC50 = 0.51 mu M), {1-[1-(3-carboxypropanamido)ethyl]-1',2-bis(diphenylphosphino)-ruthenocene kappa P-2,P'} bis[chlorogold(I)] (12) (IC50 = 1.784 mu M), have the best activities against cancer, HIV and malaria respectively. (C) 2012 Elsevier B.V. All rights reserved.
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2.
  • Venkatesan, Meera, et al. (författare)
  • Polymorphisms in Plasmodium falciparum chloroquine resistance transporter and multidrug resistance 1 genes : parasite risk factors that affect treatment outcomes for P. falciparum malaria after artemether-lumefantrine and artesunate-amodiaquine.
  • 2014
  • Ingår i: The American journal of tropical medicine and hygiene. - : American Society of Tropical Medicine and Hygiene. - 1476-1645 .- 0002-9637. ; 91:4, s. 833-43
  • Tidskriftsartikel (refereegranskat)abstract
    • Adequate clinical and parasitologic cure by artemisinin combination therapies relies on the artemisinin component and the partner drug. Polymorphisms in the Plasmodium falciparum chloroquine resistance transporter (pfcrt) and P. falciparum multidrug resistance 1 (pfmdr1) genes are associated with decreased sensitivity to amodiaquine and lumefantrine, but effects of these polymorphisms on therapeutic responses to artesunate-amodiaquine (ASAQ) and artemether-lumefantrine (AL) have not been clearly defined. Individual patient data from 31 clinical trials were harmonized and pooled by using standardized methods from the WorldWide Antimalarial Resistance Network. Data for more than 7,000 patients were analyzed to assess relationships between parasite polymorphisms in pfcrt and pfmdr1 and clinically relevant outcomes after treatment with AL or ASAQ. Presence of the pfmdr1 gene N86 (adjusted hazards ratio = 4.74, 95% confidence interval = 2.29 - 9.78, P < 0.001) and increased pfmdr1 copy number (adjusted hazards ratio = 6.52, 95% confidence interval = 2.36-17.97, P < 0.001 : were significant independent risk factors for recrudescence in patients treated with AL. AL and ASAQ exerted opposing selective effects on single-nucleotide polymorphisms in pfcrt and pfmdr1. Monitoring selection and responding to emerging signs of drug resistance are critical tools for preserving efficacy of artemisinin combination therapies; determination of the prevalence of at least pfcrt K76T and pfmdr1 N86Y should now be routine.
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3.
  • Kjellin, Linda L., et al. (författare)
  • Determination of the antimalarial drug piperaquine in small volume pediatric plasma samples by LC-MS/MS
  • 2014
  • Ingår i: Bioanalysis. - : Future Science Ltd. - 1757-6180 .- 1757-6199. ; 6:23, s. 3081-3089
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: Determination of piperaquine (PQ) in pediatric plasma requires a method with a small sample volume. Results: We report a sensitive LC-MS/MS method for quantitation of PQ with only 25 mu l human plasma. Using a deuterated internal standard (PQ-d(6)), an analytical PFP column, APCI(+) as the ion source and MRM (535/288 for PQ and 541/294 for the IS) for detection, the method has a linear calibration range of 1.5-250 ng/ml with a runtime of 3.0 min per sample. The method was applied to plasma samples from children. Conclusion: The developed LC-MS/MS method is suitable for pediatric studies with small volume plasma samples collected via capillary tubes. One limitation was the performance of PFP columns varied among different brands.
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