LK00764

Gene editing modify specific sites within the genome through gene deletions, insertions or conversions to study functionally unknown genes or conduct gene therapy. It is also used to change the biological traits of organisms to establish new varieties. Gene editing techniques include zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas 9) (CRISPR/Cas9).

The Open Field Test is a rodent behavioral assay that measures spontaneous locomotion, exploratory behavior, and anxiety-like behavior when an animal is placed in a novel open arena. The main readouts are total distance traveled, movement time, velocity, center-zone entries, center-zone time, peripheral-zone time, and thigmotaxis. The assay is based on the conflict between exploration of a novel environment and avoidance of exposed open areas; higher center exploration is commonly interpreted as lower anxiety-like behavior, whereas increased wall-following or peripheral occupancy is interpreted as higher anxiety-like behavior.