Used in biomedical research to detect and quantify phosphorylated p38 MAPK protein levels in rat tissue or cell lysates. This kit is essential for studying cellular stress responses, inflammation, apoptosis, and signaling pathways involved in diseases such as arthritis, neurodegenerative disorders, and cardiovascular conditions. Researchers use it to evaluate the activation state of p38 MAPK in experimental models, helping assess the effects of drugs, toxins, or genetic modifications on intracellular signaling. The assay provides a reliable and sensitive method for high-throughput screening in preclinical studies.