Results 41 to 50 of about 3,424,825 (277)

A flow cytometric study of the membrane potential of natural killer and k562 cells during the cytotoxic process [PDF]

open access: yes, 1993
This study demonstrates that it is possible to investigate the membrane potential of interacting cells during the cytotoxic process using flow cytometry.
Bakker Schut, Tom C.   +4 more
core   +3 more sources

Noradrenaline Modulates the Membrane Potential and Holding Current of Medial Prefrontal Cortex Pyramidal Neurons via β1-Adrenergic Receptors and HCN Channels

open access: yesFrontiers in Cellular Neuroscience, 2017
The medial prefrontal cortex (mPFC) receives dense noradrenergic projections from the locus coeruleus. Adrenergic innervation of mPFC pyramidal neurons plays an essential role in both physiology (control of memory formation, attention, working memory ...
Katarzyna Grzelka   +3 more
doaj   +1 more source

Real-time monitoring of proton exchange membrane fuel cell stack failure [PDF]

open access: yes, 2016
Uneven pressure drops in a 75-cell 9.5-kWe proton exchange membrane fuel cell stack with a U-shaped flow configuration have been shown to cause localised flooding.
Brandon, NP   +5 more
core   +2 more sources

Ion channels to inactivate neurons in Drosophila

open access: yesFrontiers in Molecular Neuroscience, 2009
Ion channels are the determinants of excitability; therefore, manipulation of their levels and properties provides an opportunity for the investigator to modulate neuronal and circuit function.
James J L Hodge
doaj   +1 more source

Joule heating involving ion currents through channel proteins

open access: yesBiophysics and Physicobiology, 2023
Ion currents associated with channel proteins in the presence of membrane potential are ubiquitous in cellular and organelle membranes. When an ion current occurs through a channel protein, Joule heating should occur. However, this Joule heating seems to
Tetsuichi Wazawa, Takeharu Nagai
doaj   +1 more source

Adjunctive Therapeutic Plasma Exchange in Refractory Adult‐Onset Still's Disease Complicated by Secondary Macrophage Activation Syndrome: A Single‐Center Experience

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Adult‐onset Still's disease (AOSD) complicated by macrophage activation syndrome (MAS) carries substantial mortality. The role of therapeutic plasma exchange (TPE) remains uncertain. Methods We retrospectively analyzed patients with AOSD‐MAS treated with TPE at a single‐center.
Masataka Ueda   +15 more
wiley   +1 more source

Stochastic Dynamics of Electrical Membrane with Voltage-Dependent Ion Channel Fluctuations

open access: yes, 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
core   +1 more source

A statistical model for in vivo neuronal dynamics [PDF]

open access: yes, 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

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Potentiality of raloxifene loaded melittin functionalized lipidic nanovesicles against pancreatic cancer cells

open access: yesDrug Delivery, 2022
Pancreatic cancer (PC) frequency and incidence have grown rapidly in recent years. One of the most serious problems with PC is the existence of asymptotic manifestations, which frequently delays early detection, and until the diagnosis is established ...
Usama A. Fahmy   +9 more
doaj   +1 more source

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