Results 41 to 50 of about 1,973,105 (333)

Development and validation of eco-friendly micellar-HPLC and HPTLC-densitometry methods for the simultaneous determination of paritaprevir, ritonavir and ombitasvir in pharmaceutical dosage forms

Heliyon, 2019
Ombitasvir, ritonavir and paritaprevir are three recently discovered directly acting antiviral drugs (DAADs) used in combined single dose tablet dosage form for treatment of hepatitis-C viral infections (HCV).
Adel Ehab Ibrahim, Roshdy E. Saraya, Hanaa Saleh, Magda Elhenawee   +3 more
doaj   +1 more source

Mono- and combinational drug therapies for global viral pandemic preparedness

iScience, 2022
Summary: Broadly effective antiviral therapies must be developed to be ready for clinical trials, which should begin soon after the emergence of new life-threatening viruses.
Aleksandr Ianevski, Rouan Yao, Ronja M. Simonsen, Vegard Myhre, Erlend Ravlo, Gerda D. Kaynova, Eva Zusinaite, Judith M. White, Stephen J. Polyak, Valentyn Oksenych, Marc P. Windisch, Qiuwei Pan, Eglė Lastauskienė, Astra Vitkauskienė, Algimantas Matukevičius, Tanel Tenson, Magnar Bjørås, Denis E. Kainov   +17 more
doaj   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source

Key Green Chemistry research areas from a pharmaceutical manufacturers’ perspective revisited

, 2018
In 2007 the members of the ACS Green Chemistry Institute® Pharmaceutical Roundtable assembled a list of key green chemistry research areas to both identify transformations that would benefit from improvements in process greenness and to encourage ...
M. Bryan, P. Dunn, D. Entwistle, F. Gallou, S. Koenig, J. Hayler, M. Hickey, S. Hughes, M. Kopach, G. Moine, P. Richardson, F. Roschangar, A. Steven, F. Weiberth   +13 more
semanticscholar   +1 more source

Detailed chemical characterization and molecular modeling of serotonin inclusion complex with unmodified β-cyclodextrin

Heliyon, 2019
In this study, we analyzed the capability of unmodified β-cyclodextrin (β-CD) to form the stable complex with serotonin hydrochloride (SER), as an important neurotransmitter in the brain.
F. Fateminasab, A.K. Bordbar, S. Shityakov   +2 more
doaj   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Impact of continuous flow chemistry in the synthesis of natural products and active pharmaceutical ingredients.

Anais da Academia Brasileira de Ciências, 2018
We present a comprehensive review of the advent and impact of continuous flow chemistry with regard to the synthesis of natural products and drugs, important pharmaceutical products and definitely responsible for a revolution in modern healthcare.
J. M. D. Souza, Renan S. Galaverna, A. A. Souza, T. Brocksom, J. Pastre, Rodrigo O. M. A. Souza, K. T. Oliveira   +6 more
semanticscholar   +1 more source

Formation of dendrimer-guest complexes as a strategy to increase the solubility of a phenazine N, N′-dioxide derivative with antitumor activity

Heliyon, 2019
Poly(amidoamine) and Poly(propylenimine) dendrimers with different generations and peripheral groups were studied as solubility enhancers and nanocarriers for 7-bromo-2-hydroxy-phenazine N5,N10-dioxide.
Nahir Dib, Luciana Fernández, Marisa Santo, Luis Otero, Fabrisio Alustiza, Ana Cecilia Liaudat, Pablo Bosch, M. Laura Lavaggi, Hugo Cerecetto, Mercedes González   +9 more
doaj   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Supramolecular Pharmaceutical Sciences: A Novel Concept Combining Pharmaceutical Sciences and Supramolecular Chemistry with a Focus on Cyclodextrin-Based Supermolecules.

Chemical and pharmaceutical bulletin, 2018
Supramolecular chemistry is an extremely useful and important domain for understanding pharmaceutical sciences because various physiological reactions and drug activities are based on supramolecular chemistry.
T. Higashi, Daisuke Iohara, K. Motoyama, H. Arima   +3 more
semanticscholar   +1 more source