Results 31 to 40 of about 283,393 (336)

Carbamate-Based Bolaamphiphile as Low-Molecular-Weight Hydrogelators

Gels, 2016
A new bolaamphiphile analog featuring carbamate moieties was synthesized in six steps starting from thymidine. The amphiphile structure exhibits nucleoside-sugar polar heads attached to a hydrophobic spacer via carbamate (urethane) functions.
Laurent Latxague, Alexandra Gaubert, David Maleville, Julie Baillet, Michael A. Ramin, Philippe Barthélémy   +5 more
doaj   +1 more source

Second-line antiretroviral therapy in resource-limited settings: the experience of Médecins Sans Frontières [PDF]

, 2008
OBJECTIVES: To describe the use of second-line protease-inhibitor regimens in Médecins Sans Frontières HIV programmes, and determine switch rates, clinical outcomes, and factors associated with survival.
Alexandra Calmy, Boyd, Braitstein, Calmy, Calmy, Chaiwarith, Colebunders, Daniel O'Brien, Ferradini, Gallant, Galárraga, Ivers, Laurent, Ledergerber, Mar Pujades-Rodríguez, Mocroft, Nicastri, Orrell, Pierre Humblet, Renaud-Théry, Srasuebkul, Sungkanuparph, Vasan, Vekemans, Walmsley   +24 more
core   +2 more sources

The Interactions of Anti-HIV Pronucleotides with a Model Phospholipid Membrane

Molecules
Pronucleotides, after entering the cell, undergo chemical or enzymatic conversion into nucleotides with a free phosphate residue, and the released nucleoside 5′-monophosphate is then phosphorylated to the biologically active form, namely nucleoside 5 ...
Monika Rojewska, Joanna Romanowska, Adam Kraszewski, Michał Sobkowski, Krystyna Prochaska   +4 more
doaj   +1 more source

Effect of Endurance Training and Adenosine Injection on CCL2 Expression in Brain Ischemia-Reperfusion in Male Rats

مجله علمی دانشگاه علوم پزشکی کردستان, 2021
Background and Aim: Regular exercise and proper exercise programs contribute to improvement of physiological function and improve aerobic capacity, blood absorption, and adequate oxygen supply for the brain and muscles.
mohammad dehafarin, farah nameni
doaj  

Simultaneous quantification of 12 different nucleotides and nucleosides released from renal epithelium and in human urine samples using ion-pair reversed-phase HPLC [PDF]

, 2012
Nucleotides and nucleosides are not only involved in cellular metabolism but also act extracellularly via P1 and P2 receptors, to elicit a wide variety of physiological and pathophysiological responses through paracrine and autocrine signalling pathways.
Alberto Contreras-Sanz, BD Gill, C Crawford, Claire M. Peppiatt-Wildman, DR Ferguson, DR Schneider, EM Schwiebert, EW Inscho, EW Inscho, FQ Yang, G Burnstock, G Burnstock, G Burnstock, G Manfredi, G Xu, HA Neufeld, HA Praetorius, HA Praetorius, Hardyal S. Gill, HM Liebich, I Kugelgen von, I Kugelgen von, J Czarnecka, James Malone-Lee, JC Mathies, Jennifer C. Jacoby, JM Buescher, JO Svensson, JR Gever, K Sugaya, Kevin M. G. Taylor, KH Schram, KR Kim, LA Birder, LC Rump, LD Todorov, M Cichna, M Katayama, MA Bailey, N Ozer, N Yamaoka, NS Zur, P Bodin, P Vinas, PD Wilson, R Corriden, RC Calvert, Rebecca E. Birch, RL Cordell, S Tatur, S Wiener, SA Levesque, Scott S. P. Wildman, Toby S. Scott-Ward, V Jankowski, V Kumar, W Yu, Y Cheng, Y Sun, Y Sun, Y Zheng   +60 more
core   +2 more sources

Chemical reactivity, molecular electrostatic potential, FTIR, NMR, in vitro, and in silico studies of mannopyranoside derivatives: 3-Nitrobenzoylation leads to improve antimicrobial activity

Chemical Physics Impact
This investigation Extensively explored the synthesis and potential therapeutic applications of derivatives derived from methyl α-d-mannopyranoside.
Shahin Sultana, Md. Ahad Hossain, Suvro Biswas, Md. Abu Saleh, Ferdausi Ali, Sarkar M.A. Kawsar   +5 more
doaj   +1 more source

Mechanochemistry of nucleosides, nucleotides and related materials

Beilstein Journal of Organic Chemistry, 2018
The application of mechanical force to induce the formation and cleavage of covalent bonds is a rapidly developing field within organic chemistry which has particular value in reducing or eliminating solvent usage, enhancing reaction rates and also in ...
Olga Eguaogie, Joseph S. Vyle, Patrick F. Conlon, Manuela A. Gîlea, Yipei Liang   +4 more
doaj   +1 more source

Adenosine as a signaling molecule in the retina: biochemical and developmental aspects

Anais da Academia Brasileira de Ciências, 2002
The nucleoside adenosine plays an important role as a neurotransmitter or neuromodulator in the central nervous system, including the retina. In the present paper we review compelling evidence showing that adenosine is a signaling molecule in the ...
ROBERTO PAES-DE-CARVALHO
doaj   +1 more source

Kinetic analysis of an efficient DNA-dependent TNA polymerase. [PDF]

, 2005
alpha-l-Threofuranosyl nucleoside triphosphates (tNTPs) are tetrafuranose nucleoside derivatives and potential progenitors of present-day beta-d-2'-deoxyribofuranosyl nucleoside triphosphates (dNTPs).
Chaput, John C, Horhota, Allen, Ichida, Justin K, McLaughlin, Larry W, Szostak, Jack W, Yu, Biao, Zou, Keyong   +6 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source