PMID- 38067012 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231209 IS - 2076-2615 (Print) IS - 2076-2615 (Electronic) IS - 2076-2615 (Linking) VI - 13 IP - 23 DP - 2023 Nov 27 TI - Enterocytozoon hepatopenaei (EHP) Infection Alters the Metabolic Processes and Induces Oxidative Stress in Penaeus vannamei. LID - 10.3390/ani13233661 [doi] LID - 3661 AB - Enterocytozoon hepatopenaei (EHP) is highly contagious and can cause hepatopancreatic microsporidiosis (HPM), which is typically characterized by the slow growth of shrimp. In this study, the differences in histology, metabolism, oxidative stress and growth between healthy and EHP-infected Penaeus vannamei were analyzed using an EHP challenge experiment. Histology showed that EHP caused lesions in the hepatic tubules of P. vannamei, such as hepatic tubular atrophy and epithelial cell shedding, with mature spores. Meanwhile, white feces may appear when the infection is severe. Furthermore, the content of total protein, glycogen, ATP and glucose in the EHP challenge group was significantly reduced. The qPCR results showed that EHP infection changed the expression of key genes in glucose metabolism, among which hexokinase (HK), phosphofructokinase (PFK), pyruvatekinase (PK), citrate synthase (CS) and isocitric dehydrogenase (IDH) were significantly down-regulated, while phosphoenolpyruvate carboxykinase (PEPCK), fructose bisphosphatase (FBP) and glucose-6-phosphatase (G6P) were significantly up-regulated. Obviously, the expression of growth-related genes was disordered. Simultaneously, the antioxidant genes manganese superoxide dismutase (MnSOD), catalase (CAT), glutathione peroxidase (GPX), glutathione-S-transferases (GST) and nuclear factor E2-related factor2 (Nrf2) were up-regulated to varying degrees in the EHP challenge group, and EHP infection induced significant increases in the oxidative damage products lipid peroxide (LPO) and malondialdehyde (MDA). Ultimately, the shrimp weight of the challenge group was 6.85 +/- 0.86 g, which was significantly lower than that of the control group (8.95 +/- 0.75 g). Taken together, we speculate that EHP changes the substance metabolism and growth process by causing oxidative damage to the hepatopancreas, which may lead to the growth retardation of P. vannamei. FAU - Cao, Zheng AU - Cao Z AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. FAU - Chen, Caiyi AU - Chen C AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. FAU - Wang, Cuixia AU - Wang C AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. FAU - Li, Ting AU - Li T AUID- ORCID: 0000-0002-0854-9124 AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. FAU - Chang, Linrui AU - Chang L AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. FAU - Si, Lingjun AU - Si L AUID- ORCID: 0009-0007-0756-8482 AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. FAU - Yan, Dongchun AU - Yan D AD - Laboratory of Disease Research of Aquatic Animal, School of Agriculture, Ludong University, Yantai 264025, China. LA - eng GR - ZR2023QC050/Natural Science Foundation of Shandong Province/ GR - 20220022/Start-up funding for scientific research of Ludong University/ PT - Journal Article DEP - 20231127 PL - Switzerland TA - Animals (Basel) JT - Animals : an open access journal from MDPI JID - 101635614 PMC - PMC10705197 OTO - NOTNLM OT - Penaeus vannamei OT - antioxidant defense OT - glucose metabolism OT - growth performance OT - microsporidia COIS- The authors declare no conflict of interest. EDAT- 2023/12/09 10:42 MHDA- 2023/12/09 10:43 PMCR- 2023/11/27 CRDT- 2023/12/09 01:02 PHST- 2023/11/07 00:00 [received] PHST- 2023/11/20 00:00 [revised] PHST- 2023/11/24 00:00 [accepted] PHST- 2023/12/09 10:43 [medline] PHST- 2023/12/09 10:42 [pubmed] PHST- 2023/12/09 01:02 [entrez] PHST- 2023/11/27 00:00 [pmc-release] AID - ani13233661 [pii] AID - animals-13-03661 [pii] AID - 10.3390/ani13233661 [doi] PST - epublish SO - Animals (Basel). 2023 Nov 27;13(23):3661. doi: 10.3390/ani13233661.