Results 51 to 60 of about 16,457 (321)

Caffeine. cognitive and physical performance enhancer or psychoactive drug? [PDF]

, 2015
Caffeine use is increasing worldwide. The underlying motivations are mainly concentration and memory enhancement and physical performance improvement. Coffee and caffeine-containing products affect the cardiovascular system, with their positive inotropic
Aromatario, Mariarosaria, Cappelletti, Simone, Piacentino, Daria, Sani, Gabriele   +3 more
core   +1 more source

Improvements in Health‐Related Quality of Life With Treat‐to‐Target Urate‐Lowering Therapy in Gout: A Post Hoc Analysis of a Randomized Multicenter Trial

Arthritis Care &Research, EarlyView.
Objective Although treat‐to‐target urate‐lowering therapy (ULT) is endorsed as best practice in gout management, limited data exist on its impact on health‐related quality of life (HRQoL). We assessed the impact of treat‐to‐target ULT on HRQoL among participants receiving protocolized gout care, identifying factors associated with HRQoL and HRQoL ...
Austin Barry, Bryant R. England, Harlan Sayles, Lindsay N. Helget, Maria Androsenko, Hongsheng Wu, Kaleb Michaud, Bridget Kramer, Jeff A. Newcomb, Mary T. Brophy, Anne Davis‐Karim, Ryan Ferguson, Michael H. Pillinger, Tuhina Neogi, Paul M. Palevsky, James R. O'Dell, Ted R. Mikuls   +16 more
wiley   +1 more source

Hetero-association of aromatic molecules in aqueous solution [PDF]

, 2014
Knowledge of the physical chemistry of small molecules complexation (the hetero-association) in aqueous solution is increasingly important in view of the rapidly emerging branch of supramolecular chemistry dealing with the formation of heterogeneous ...
Baranovsky S.F., Bolotin P.A., Boulton R., Burton K., Charlton A.J., Chu E., Dalmark M., Evstigneev M.P., Evstigneev M.P., Evstigneev M.P., Foster R., Grokhlina T.I., Janin J., Kostjukov V.V., Kostjukov V.V., Lim L.-Y., Maxim P. Evstigneev, Mosunov A.A., Piosik J., Poltev V.I., Rieth S., Stockley I.H., Traganos F., Traganos F., Ts’o P.O.P., Veselkov A.N., Veselkov A.N., Veselkov A.N., Veselkov D.A., Weber G., Weil-Malherbe H., Winkler H., Yagi K.   +32 more
core   +1 more source

Response to allopurinol and febuxostat according to the fractional excretion of urate in men with gout

Arthritis Care &Research, Accepted Article.
Background Body mass index (BMI), glomerular filtration rate (GFR), and pretreatment urate levels have been reported to influence the urate‐lowering response to allopurinol. We investigated whether the fractional excretion of urate (FEUA) also modulates this response and relates to oxypurinol concentrations. We further evaluated its potential influence
Pascal Richette, Anouk Walter‐Petrich, Quang Dinh Nguyen, Matthieu Resche‐Rigon, Quang Huy Dinh Nguyen, Minh Duc Do, Thao Phuong Mai, Tuan Duc Nguyen, Fernando Perez‐Ruiz, Emmanuel Letavernier, Tristan Pascart, Augustin Latourte, Hang Korng Ea, Thomas Bardin   +13 more
wiley   +1 more source

Xanthines as a scaffold for molecular diversity [PDF]

, 2018
Summary: Xanthines represent a new, versatile scaffold for combinatorial chemistry. A five-step solid-phase synthesis of xanthine derivatives is described which includes alkylations, a nucleophilic displacement reaction at a heterocycle and a ring ...
Eberle, Alex, Heizmann, Gerhard
core  

Biocatalytic Construction of a Chemical Exchange Saturation Transfer Magnetic Resonance Imaging Nucleoside Probe: Synthesis and Evaluation of 5‐Methyl‐5,6‐Dihydrothymidine

Advanced Synthesis &Catalysis, EarlyView.
Al‐Hilfi et al. present a biocatalytic strategy for synthesizing 5‐methyl‐5,6‐dihydrothymidine (5‐MDHT), a sensitive MRI contrast agent. The study demonstrates that recombinant enzyme catalysis offers an efficient, sustainable, and eco‐friendly alternative to traditional chemical synthesis for producing clinically relevant imaging probes.
Aimen Al‐Hilfi, E. Alejandro Castellanos Franco, Connor J. Grady, Zinia Mohanta, Michael T. McMahon, Milana Bazayeva, Zhen Li, Kenneth M. Merz Jr., Assaf A. Gilad   +8 more
wiley   +1 more source

The study of reactions of 7-substituted 8-hydrazino-3-methylxanthine with β-dicarbonyl compounds

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2015
The problem of searching biologically active compounds amidst xanthine derivatives is a crucial one and is an issue for long-term investigation.
N. I. Romanenko, M. V. Nazarenko, D. G. Ivanchenko, O. O. Pakhomova, T. A. Sharapova   +4 more
doaj   +1 more source

Multi-target Natural and Nature-Inspired Compounds against Neurodegeneration: A Focus on Dual Cholinesterase and Phosphodiesterase Inhibitors

Applied Sciences, 2021
Alzheimer’s disease is a memory-related neurodegenerative condition leading to cognitive impairment. Cholinergic deficit, together with other underlying mechanisms, leads the to onset and progression of the disease.
Giovanni Ribaudo, Maurizio Memo, Alessandra Gianoncelli   +2 more
doaj   +1 more source

Dysfunctional TRIM31 of POMC Neurons Provokes Hypothalamic Injury and Peripheral Metabolic Disorder under Long‐Term Fine Particulate Matter Exposure

Advanced Science, EarlyView.
Particulate matter ≤2.5 µm (PM2.5) elevates risks of neurological and chronic metabolic diseases, but the underlying mechanisms linking PM2.5‐induced central nervous system (CNS) injury to metabolic dysfunction remain unclear. Hypothalamic pro‐opiomelanocortin‐expressing (POMC+) neurons regulate systemic metabolic homeostasis, and tripartite motif ...
Chenxu Ge, Jiamao Lin, Changsheng Yang, Chuanwang Miao, Fengxiang Li, Shuqiang Zhao, Lei Zou, Xuedong Teng, Lina Liu, Tingguang Li, Yan Sun, Qiang Li, Deshuai Lou, Linfeng Hu, Xi Liu, Gang Kuang, Jing Luo, Minxuan Xu, Minghui Chang, Jun Tan, Yanrong Ren, Bochu Wang   +21 more
wiley   +1 more source

Fast, Efficient, and Versatile Synthesis of 6-amino-5-carboxamidouracils as Precursors for 8-Substituted Xanthines

Frontiers in Chemistry, 2019
Substituted xanthine derivatives are important bioactive molecules. Herein we report on a new, practical synthesis of 6-amino-5-carboxamidouracils, the main building blocks for the preparation of 8-substituted xanthines, by condensation of 5,6 ...
Daniel Marx, Lukas M. Wingen, Gregor Schnakenburg, Christa E. Müller, Matthias S. Scholz   +4 more
doaj   +1 more source