Results 61 to 70 of about 681,334 (361)
FEBS Letters, EarlyView.To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche +2 more
wiley +1 more source
Biosensor measurement of purine release from cerebellar cultures and slices [PDF]
, 2010 We have previously described an action-potential and Ca2+-dependent form of adenosine release in the molecular layer of cerebellar slices. The most likely source of the adenosine is the parallel fibres, the axons of granule cells. Using microelectrode
Dale, Nicholas +2 more
core +2 more sources
Mycobacterial adenosine kinase is not a typical adenosine kinase [PDF]
FEBS Letters, 2009 Adenosine kinase (AK) is only found in eukaryotes. Recently, a Mycobacterium tuberculosis (MTub) protein exhibiting greater sequence similarity to ribokinases (RK) was identified as AK. We have expressed AKs from MTub, human and Chinese hamster (CH) cells in Escherichia coli and also AK from human and MTub in AK‐deficient CH cells. While both E.
Bhag Singh, Jae Park, Radhey S. Gupta
openaire +3 more sources
Molecular Oncology, EarlyView.Breast tumor samples scored for metabolic deregulation (M1 to M3) were given a hypoxia score (HS). The highest HS occurred in patients with strongest metabolic deregulation (M3), supporting tumor aggressiveness. HS correlated with the highest number of metabolic pathways in M1. This suggests hypoxia to be an early event in metabolic deregulation.
Raefa Abou Khouzam +2 more
wiley +1 more source
The role of the neuromodulator adenosine in alcohols actions. [PDF]
, 1997 The interaction between the neuromodulator adenosine and adenosine receptors on the surface of neurons modifies the neurons responses to neurotransmitters.
Diamond, Ivan, Dohrman, D, Gordon, A
core
Transient and selective blockade of adenosine A1-receptors by 8-cyclopentyl-1,3-dipropylxanthine (DPCPX) causes sustained epileptiform activity in hippocampal CA3 neurons of guinea pigs [PDF]
, 1989 The effects of endogenously released adenosine on the excitability of hippocampal neurons were studied using the novel and highly selective adenosine A1-receptor antagonist 8-cyclopentyl-1,3-dipropylxanthine (DPCPX).
Alzheimer, Christian +2 more
core +1 more source
An unexpected response to adenosine [PDF]
Netherlands Heart Journal, 2014 Rhythm puzzle—answer The ECG shown in Fig. 1 is a narrow complex tachycardia with a frequency of 270 beats/min. Contradictory to expectations, the administration of adenosine resulted not in conversion of the arrhythmia, but in this accelerated rhythm, making an AV(N)RT unlikely.
R. G. Tieleman, J. M. ter Maaten
openaire +5 more sources
Coupling of actin hydrolysis and polymerization: Reduced description with two nucleotide states [PDF]
EPL 89, 38010 (2010), 2011 The polymerization of actin filaments is coupled to the hydrolysis of adenosine triphosphate (ATP), which involves both the cleavage of ATP and the release of inorganic phosphate. We describe hydrolysis by a reduced two-state model with a cooperative cleavage mechanism, where the cleavage rate depends on the state of the neighboring actin protomer in a
arxiv +1 more source
Molecular Oncology, EarlyView.Low expression of five purine metabolism‐related genes (ADSL, APRT, ADCY3, NME3, NME6) was correlated with poor survival in colorectal cancer. Immunohistochemistry analysis showed that low NME3 (early stage) and low ADSL/NME6 (late stage) levels were associated with high risk.
Sungyeon Kim +8 more
wiley +1 more source
Wakefulness affects synaptic and network activity by increasing extracellular astrocyte-derived adenosine [PDF]
, 2012 Loss of sleep causes an increase in sleep drive and deficits in hippocampal-dependent memory. Both of these responses are thought to require activation of adenosine A1 receptors (adorA1Rs) and release of transmitter molecules including ATP, which is ...
Dale, Nicholas +3 more
core +2 more sources