Results 71 to 80 of about 77,275 (204)

Extracellular ATP released by osteoblasts is a key local inhibitor of bone mineralisation [PDF]

, 2013
Previous studies have shown that exogenous ATP (>1µM) prevents bone formation in vitro by blocking mineralisation of the collagenous matrix. This effect is thought to be mediated via both P2 receptor-dependent pathways and a receptor-independent ...
A Brandao-Burch, A Brandao-Burch, A Gartland, A Hoebertz, BA Evans, CG Bellows, DC Genetos, DC Genetos, E Nakamura, G Burnstock, G Burnstock, G Burnstock, G Burnstock, H Fleisch, H Fleisch, H Zimmermann, IR Orriss, IR Orriss, IR Orriss, IR Orriss, IR Orriss, IR Orriss, IR Orriss, Isabel R. Orriss, J Ham, JL Ramírez-Zacarías, JP Reyes, KA Buckley, KA Buckley, KA Johnson, L Hessle, Luc Malaval, M Ciciarello, M Romanello, Mark O. R. Hajjawi, Michelle L. Key, MP Abbracchio, MW Pfaffl, N Panupinthu, N Panupinthu, N Wang, N Zippel, RM Rumney, S Shimegi, S Syberg, Timothy R. Arnett, V Ralevic, WB Bowler, WE Razzell, WN Addison   +49 more
core   +3 more sources

Caffeine affects the biological responses of human hematopoietic cells of myeloid lineage via downregulation of the mTOR pathway and xanthine oxidase activity [PDF]

, 2015
Correction of human myeloid cell function is crucial for the prevention of inflammatory and allergic reactions as well as leukaemia progression. Caffeine, a naturally occurring food component, is known to display anti-inflammatory effects which have ...
Abooali, Maryam, Berger, Steffen M., Casely-Hayford, Maxwell A., Fasler-Kan, Elizaveta, Gibbs, Bernhard F., Gonçalves Silva, Isabel, Prokhorov, Alexandr, Sumbayev, Vadim V., Yasinska, Inna M.   +8 more
core   +3 more sources

Parâmetros ruminais, balanço de compostos nitrogenados e produção microbiana de vacas leiteiras alimentadas com soja e seus subprodutos Ruminal parameters, nitrogen compound balance and microbial production in dairy cows fed soybeans and their by-products

Revista Brasileira de Zootecnia, 2010
Objetivou-se analisar a variação do pH, da amônia ruminal e do balanço de compostos nitrogenados e a síntese de proteína microbiana de 12 vacas da raça Holandesa distribuídas em três quadrados latinos 4 × 4, alimentadas com dietas contendo soja em ...
Angela Maria de Vasconcelos, Maria Ignez Leão, Sebastião de Campos Valadares Filho, Rilene Ferreira Diniz Valadares, Marcia Dias, Débora Andréa Evangelista Façanha Morais   +5 more
doaj   +1 more source

DNA intercalation and cleavage of an antitumor antibiotic dynemicin that contains anthracycline and enediyne cores [PDF]

, 1990
Dynemicin is a hybrid containing anthraquinone and enediyne cores, which contribute to binding and cleavage of DNA, respectively. DNA strand scission by the antitumor antibiotic is significantly enhanced by the addition of NADPH or thiol compounds.
Konishi, Masataka, Oki, Toshikazu, Shiraki, Takashi, Sugiura, Yukio   +3 more
core   +1 more source

Nitrogen doping of carbon nanoelectrodes for enhanced control of DNA translocation dynamics

, 2017
Controlling the dynamics of DNA translocation is a central issue in the emerging nanopore-based DNA sequencing. To address the potential of heteroatom doping of carbon nanostructures to achieve this goal, herein we carry out atomistic molecular dynamics ...
Cho, Art E., Jung, Sang Won, Kim, Han Seul, Kim, Yong-Hoon   +3 more
core   +9 more sources

Purine Phosphoribosyltransferases [PDF]

Journal of Biological Chemistry, 2000
S P, Craig, A E, Eakin
openaire   +2 more sources

GLC analysis of base composition of RNA and DNA hydrolysates [PDF]

Various methods used for the analysis of the base composition of RNA and DNA hydrolysates are presented. The methods discussed are: (1) ion-exchange chromatography, (2) paper chromatography, (3) paper electrophoresis, (4) thin layer chromatography, (5 ...
Gehreke, C. W., Lakings, D. B.
core   +1 more source

DNA viewed as an out-of-equilibrium structure

, 2013
The complexity of the primary structure of human DNA is explored using methods from nonequilibrium statistical mechanics, dynamical systems theory and information theory.
Nicolis, C., Nicolis, G., Provata, A.
core   +1 more source

A systematically coarse-grained model for DNA, and its predictions for persistence length, stacking, twist, and chirality

, 2009
We introduce a coarse-grained model of DNA with bases modeled as rigid-body ellipsoids to capture their anisotropic stereochemistry. Interaction potentials are all physicochemical and generated from all-atom simulation/parameterization with minimal ...
Alex Morriss-Andrews, Ashcroft N. W., Branden C., de Gennes P. -G., Joerg Rottler, Kuipers J., Lamb H., Steven S. Plotkin, Ueda Y.   +8 more
core   +1 more source

Assessment of purine catabolism and morbidity in miners depending on their work experience

Russian Open Medical Journal
Objective — The role of end products of purine metabolism as predictors of the development of pathological changes and diseases caused by the impact of dust on the human body in a professional environment vs.
Diana M. Shaukhat, Lyazat K. Ibrayeva, Dina Kh. Rybalkina, Irina V. Bacheva, Igor V. Bukhtiyarov, Aigul U. Amanbekova, Tleуuzhan O. Abugalieva   +6 more
doaj   +1 more source