title: Immune effects of dietary anethole on Eimeria acervulina infection.
abstract: The effects of anethole on in vitro and in vivo parameters of chicken immunity during experimental avian coccidiosis were evaluated. Anethole reduced the viability of invasive Eimeria acervulina sporozoites after 2 or 4 h of treatment in vitro by 45 and 42%, respectively, and stimulated 6.0-fold greater chicken spleen cell proliferation compared with controls. Broiler chickens continuously fed from hatch with an anethole-supplemented diet and orally challenged with live E. acervulina oocysts showed enhanced BW gain, decreased fecal oocyst excretion, and greater E. acervulina profilin antibody responses compared with infected chickens given an unsupplemented standard diet. The levels of transcripts encoding the immune mediators IL6, IL8, IL10, and tumor necrosis factor ligand superfamily member 15 (TNFSF15) in intestinal lymphocytes were increased in E. acervulina-infected chickens fed the anethole-containing diet compared with untreated controls. Global gene expression analysis by microarray hybridization identified 1,810 transcripts (677 upregulated, 1,133 downregulated) whose levels were significantly altered in intestinal lymphocytes of anethole-fed birds compared with unsupplemented controls. From this transcriptome, 576 corresponding genes were identified. The most significant biological function associated with these genes was "Inflammatory Response" in the "Disease and Disorders" category. This new information documents the immunologic and genomic changes that occur in chickens following anethole dietary supplementation that may be relevant to host protective immune response to avian coccidiosis.
authors.affiliation: Animal Biosciences and Biotechnology Laboratory, USDA, Beltsville, MD 20705;
authors.forename: Duk Kyung
authors.initials: DK
authors.lastname: Kim
authors.forename: Hyun S
authors.initials: HS
authors.lastname: Lillehoj
authors.forename: Sung Hyen
authors.initials: SH
authors.lastname: Lee
authors.forename: Seung Ik
authors.initials: SI
authors.lastname: Jang
authors.forename: Myeong Seon
authors.initials: MS
authors.lastname: Park
authors.forename: Wongi
authors.initials: W
authors.lastname: Min
authors.forename: Erik P
authors.initials: EP
authors.lastname: Lillehoj
authors.forename: David
authors.initials: D
authors.lastname: Bravo
mesh_terms: D000081248:Allylbenzene Derivatives; D000821:Animal Feed / Q000032:analysis; D000818:Animals; D000840:Anisoles / Q000008:administration & dosage* / Q000627:therapeutic use; D000913:Antibodies, Protozoan / Q000097:blood; D002645:Chickens; D003048:Coccidiosis / Q000188:drug therapy / Q000276:immunology / Q000662:veterinary*; D003049:Coccidiostats / Q000008:administration & dosage* / Q000627:therapeutic use; D016207:Cytokines / Q000235:genetics / Q000378:metabolism; D019587:Dietary Supplements / Q000032:analysis; D004539:Eimeria / Q000187:drug effects*; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D020869:Gene Expression Profiling / Q000662:veterinary; D008214:Lymphocytes / Q000276:immunology; D011201:Poultry Diseases / Q000188:drug therapy / Q000276:immunology*; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000662:veterinary; D034101:Sporozoites / Q000187:drug effects
chemical_list: D000081248:Allylbenzene Derivatives; D000840:Anisoles; D000913:Antibodies, Protozoan; D003049:Coccidiostats; D016207:Cytokines; C006578:anethole