Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation;
College of Veterinary Medicine;
South China Agricultural University;
Guangzhou 510642;
China;
Guangdong Laboratory for Lingnan Modern Agriculture;
College of Veterinary Medicine;
South China Agricultural University;
Guangzhou 510642;
China;
Department of Natural Products Chemistry;
School of Traditional Chinese Materia Medica;
Key Laboratory of Structure-Based Drug Design&Discovery;
Ministry of Education;
Shenyang Pharmaceutical University;
Shenyang 110016;
China;
State Key Laboratory of Veterinary Biotechnology;
Harbin Veterinary Research Institute;
Chinese Academy of Agricultural Sciences;
Harbin 150001;
China;
Porcine reproductive and respiratory syndrome virus(PRRSV); Andrographolide(Andro); Potassium dehydrographolide succinate(PDS); Inhibit; NF-kB signaling pathway; Oxidative stress;