{"doi":"10.1053/plac.2000.0569","title":"Expression of Mitochondrial Thioredoxin-dependent Antioxidant Protein, SP-22, in Normal Human and Inflammatory Mouse Placentae","abstract":null,"journal":"Placenta","year":2000,"id":620606,"datarank":0.37273599746820013,"base_score":2.4849066497880004,"endowment":2.4849066497880004,"self_citation_contribution":0.37273599746820013,"citation_network_contribution":0.0,"self_endowment_contribution":0.37273599746820013,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":11,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1602133,"name":"H. Nanri","orcid":null,"position":1,"is_corresponding":false},{"id":25267,"name":"M. Araki","orcid":null,"position":2,"is_corresponding":false},{"id":1602134,"name":"T. Koji","orcid":null,"position":3,"is_corresponding":false},{"id":1602135,"name":"E. Shibata","orcid":null,"position":4,"is_corresponding":false},{"id":1602136,"name":"M. Kashimura","orcid":null,"position":5,"is_corresponding":false},{"id":1543675,"name":"M. Ikeda","orcid":null,"position":6,"is_corresponding":false},{"id":1602132,"name":"K. Ejima","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Expression of Mitochondrial Thioredoxin-dependent Antioxidant Protein, SP-22, in Normal Human and Inflammatory Mouse Placentae","abstract":"The aim of this study was to elucidate whether a novel mitochondrial antioxidant protein, SP-22, is localized in placenta and whether its expression is induced in placenta of lipopolysaccharide (LPS)-exposed mouse. Western blot analysis of normal human placenta indicated that the SP-22 protein was located in the mitochondrial fraction. Immunohistochemical analysis of SP-22 in normal placenta showed that immunoreactive SP-22 was distributed mostly in cytotrophoblastic cells but with almost no signal in syncytiotrophoblasts. The positive signals were also detected in the decidual cells and stromal cells in stem villi of normal placenta. We also examined LPS-mediated inflammatory placenta on day 13 of pregnancy at various time points after LPS injection (50 microg/kg, intraperitoneally). Western blot analysis indicated that LPS approximately quadrupled the expression of SP-22 in placenta of LPS-exposed mouse. When the SP-22 protein was localized immunohistochemically, the decidua and the diploid trophoblasts in the basal zone were intensively stained in placenta of LPS-exposed mouse compared to the control. The localization and inducible expression of SP-22 protein in placenta suggest a possible role in antioxidant system in mitochondria of normal and inflammatory placentae.","is_dataset_classified":null,"base_score":2.4849066497880004,"endowment":2.4849066497880004,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"11095935","pmcid":null,"openalex_id":"https://openalex.org/W2002142611","authors":[],"funders":[],"total_grants":0,"fwci":0.1185,"citation_percentile":0.45388104,"influential_citations":0,"citation_trend":[{"year":2012,"count":4},{"year":2014,"count":1},{"year":2015,"count":1}],"oa_status":"closed","license":"https://www.elsevier.com/legal/tdmrep-license","oa_locations":[{"url":"https://api.elsevier.com/content/article/PII:S0143400400905691?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0143400400905691?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doi.org/10.1053/plac.2000.0569","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/11095935","host_type":"repository"}],"fields_of_study":["Redox biology and oxidative stress","Glutathione Transferases and Polymorphisms","Pregnancy and preeclampsia studies","Animals","Blotting, Western","Decidua","Female","Gestational Age","Humans","Immunohistochemistry","Inflammation","Lipopolysaccharides","Mice","Mitochondria","Peroxidases","Peroxiredoxin III","Peroxiredoxins","Placenta","Placenta Diseases","Pregnancy","Stromal Cells","Trophoblasts"],"mesh_terms":["Animals","Decidua","Female","Gestational Age","Humans","Immunohistochemistry","Inflammation","Lipopolysaccharides","Mitochondria","Peroxidases","Placenta","Placenta Diseases","Pregnancy","Trophoblasts","Blotting, Western","Stromal Cells","Mice","Peroxiredoxins","Peroxiredoxin III"],"keywords":["Placenta","Syncytiotrophoblasts","Decidua","Western blot","Biology","Andrology","Stromal cell","Cytotrophoblast","Immunohistochemistry","Decidual cells","Endocrinology","Molecular biology","Internal medicine","Fetus","Immunology","Pregnancy","Medicine","Biochemistry","Cancer research"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Good health and well-being"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-03T11:33:42.716623Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}