1. Key Laboratory of Tropical Disease Control (Sun Yat-sen University); Ministry of Education; Guangzhou Guangdong 510080 China
2. Department of Pharmacology; Zhongshan School of Medicine, Sun Yat-sen University; Guangzhou Guangdong 510080 China
3. Department of Microbiology; Zhongshan School of Medicine, Sun Yat-sen University; Guangzhou Guangdong 510080 China
4. Department of Education of Guangdong Province, Key Laboratory of Functional Molecules from Oceanic Microorganisms; Sun Yat-sen University; Guangzhou Guangdong 510080 China
5. Department of Endocrinology and Diabetes Center; The First Affiliated Hospital of Sun Yat-sen University; Guangzhou Guangdong 510080 China