Non‐thermal 0.5% N2/Ar micro‐plasma treatment with relatively high NO content was conducted on mice with second‐degree burn wounds. Reactive oxygen species (ROS) and reactive nitrogen species (RNS) concentrations in the plasma‐exposed tissue lysate were measured. The wound closure kinetics, inflammatory responses, proliferation phase, blood flow, and formation of blood vessels in the mice were then assessed. The results showed that the wound contraction in the plasma‐exposed mice occurred five days earlier than that in the control group. The generated ROS/RNS signals stimulated the burn wound healing process, which were correlated with the angiogenesis and epithelialization processes. A possible in vivo mechanism for the enhancement of the processes in the plasma‐exposed mice is thereafter proposed.
SummaryIn vitro brain tissue preparations allow the convenient and affordable study of brain networks and have allowed us to garner molecular, cellular, and electrophysiologic insights into brain function with a detail not achievable in vivo. Preparations from both rodent and human postsurgical tissue have been utilized to generate in vitro electrical activity similar to electrographic activity seen in patients with epilepsy. A great deal of knowledge about how brain networks generate various forms of epileptiform activity has been gained, but due to the multiple in vitro models and manipulations used, there is a need for a standardization across studies. Here, we describe epileptiform patterns generated using in vitro brain preparations, focusing on issues and best practices pertaining to recording, reporting, and interpretation of the electrophysiologic patterns observed. We also discuss criteria for defining in vitro seizure‐like patterns (i.e., ictal) and interictal discharges. Unifying terminologies and definitions are proposed. We suggest a set of best practices for reporting in vitro studies to favor both efficient across‐lab comparisons and translation to in vivo models and human studies.
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