Results 41 to 50 of about 3,357,590 (333)
Functional consequences of sphingomyelinase-induced changes in erythrocyte membrane structure. [PDF]
, 2012 Inflammation enhances the secretion of sphingomyelinases (SMases). SMases catalyze the hydrolysis of sphingomyelin into phosphocholine and ceramide.
Bosman, GJ +10 more
core +1 more source
Calcium Signaling in Plant-Insect Interactions
Plants, 2022 In plant–insect interactions, calcium (Ca2+) variations are among the earliest events associated with the plant perception of biotic stress. Upon herbivory, Ca2+ waves travel long distances to transmit and convert the local signal to a systemic defense ...
Ambra S. Parmagnani, Massimo E. Maffei
doaj +1 more source
MEMBRANE POTENTIALS AND CATAPHORETIC POTENTIALS OF PROTEINS [PDF]
Journal of General Physiology, 1923 1. It has been shown in preceding publications that the membrane potentials of protein solutions or gels are determined by differences in the concentration of a common ion (e.g. hydrogen ion) inside a protein solution or protein gel and an outside aqueous solution free from protein, and that the membrane potentials can be calculated with a good degree ...
openaire +3 more sources
Relocation of active site carboxylates in major facilitator superfamily multidrug transporter LmrP reveals plasticity in proton interactions [PDF]
, 2016 The expression of polyspecific membrane transporters is one important mechanism by which cells can obtain resistance to structurally different antibiotics and cytotoxic agents.
core +2 more sources
Interaction of Potent Mitochondrial Uncouplers with Thiol-Containing Antioxidants
Antioxidants, 2019 It is generally considered that reactive oxygen species (ROS) are involved in the development of numerous pathologies. The level of ROS can be altered via the uncoupling of oxidative phosphorylation by using protonophores causing mitochondrial membrane ...
Ljudmila S. Khailova +3 more
doaj +1 more source
Effective potential and stability of the rigid membrane
, 1992 The calculation of the effective potential for fixed-end and toroidal rigid $p$-branes is performed in the one-loop as well as in the $1/d$ approximations.
A. Achúcarro +37 more
core +1 more source
Donnan potential and surface potential of a charged membrane
Biophysical Journal, 1985 A model is presented for the electrical potential distribution across a charged biological membrane that is in equilibrium with an electrolyte solution. We assume that a membrane has charged surface layers of thickness d on both surfaces of the membrane, where the fixed charges are distributed at a uniform density N within the layers, and that these ...
Shinpei Ohki, Hiroyuki Ohshima
openaire +3 more sources
Stochastic Dynamics of Electrical Membrane with Voltage-Dependent Ion Channel Fluctuations
, 2014 Brownian ratchet like stochastic theory for the electrochemical membrane system of Hodgkin-Huxley (HH) is developed. The system is characterized by a continuous variable $Q_m(t)$, representing mobile membrane charge density, and a discrete variable $K_t$
Qian, Hong, Qian, Min, Zhang, Xue-Juan
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A statistical model for in vivo neuronal dynamics [PDF]
, 2014 Single neuron models have a long tradition in computational neuroscience. Detailed biophysical models such as the Hodgkin-Huxley model as well as simplified neuron models such as the class of integrate-and-fire models relate the input current to the ...
Pfister, Jean-Pascal +1 more
core +7 more sources
Beilstein Journal of Nanotechnology, 2014 The manipulation of brain nerve terminals by an external magnetic field promises breakthroughs in nano-neurotechnology. D-Mannose-coated superparamagnetic nanoparticles were synthesized by coprecipitation of Fe(II) and Fe(III) salts followed by oxidation
Tatiana Borisova +6 more
doaj +1 more source