{"id":"https://openalex.org/W2012834262","doi":"https://doi.org/10.1002/jez.1402690604","title":"Analysis of lung surfactant in the metamorphosing bullfrog (Rana catesbeiana)","display_name":"Analysis of lung surfactant in the metamorphosing bullfrog (Rana catesbeiana)","publication_year":1994,"publication_date":"1994-09-01","ids":{"openalex":"https://openalex.org/W2012834262","doi":"https://doi.org/10.1002/jez.1402690604","mag":"2012834262","pmid":"https://pubmed.ncbi.nlm.nih.gov/7931124"},"language":"en","primary_location":{"id":"doi:10.1002/jez.1402690604","doi":"https://doi.org/10.1002/jez.1402690604","is_oa":false,"landing_page_url":"https://doi.org/10.1002/jez.1402690604","pdf_url":null,"source":{"id":"https://openalex.org/S4210222064","display_name":"Journal of Experimental Zoology","issn_l":"0022-104X","issn":["0022-104X","1097-010X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Experimental Zoology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5034367983","display_name":"Atsuko Oguchi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Atsuko Oguchi","raw_affiliation_strings":["Department of Biology, School of Education, Waseda University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, School of Education, Waseda University, Tokyo, Japan","institution_ids":["https://openalex.org/I150744194"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074569978","display_name":"Masatoshi Mita","orcid":"https://orcid.org/0000-0002-7856-9892","observed_orcids":["https://orcid.org/0000-0002-7856-9892"]},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masatoshi Mita","raw_affiliation_strings":["Department of Biology, School of Education, Waseda University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, School of Education, Waseda University, Tokyo, Japan","institution_ids":["https://openalex.org/I150744194"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087474512","display_name":"Muneyoshi Ohkawa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Muneyoshi Ohkawa","raw_affiliation_strings":["Department of Biology, School of Education, Waseda University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, School of Education, Waseda University, Tokyo, Japan","institution_ids":["https://openalex.org/I150744194"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111888320","display_name":"K\u014dsuk\u00e9 Kawamura","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kosuke Kawamura","raw_affiliation_strings":["Department of Biology, School of Education, Waseda University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, School of Education, Waseda University, Tokyo, Japan","institution_ids":["https://openalex.org/I150744194"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013407142","display_name":"Saka\u00e9 Kikuyama","orcid":"https://orcid.org/0000-0003-4911-0991","observed_orcids":["https://orcid.org/0000-0003-4911-0991"]},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Saka\u00e9 Kikuyama","raw_affiliation_strings":["Department of Biology, School of Education, Waseda University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, School of Education, Waseda University, Tokyo, Japan","institution_ids":["https://openalex.org/I150744194"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5013407142"],"corresponding_institution_ids":["https://openalex.org/I150744194"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.20622621,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"269","issue":"6","first_page":"515","last_page":"521"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10549","display_name":"Neonatal Respiratory Health Research","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10549","display_name":"Neonatal Respiratory Health Research","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10268","display_name":"Developmental Biology and Gene Regulation","score":0.0013000000035390258,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13100","display_name":"Comparative Animal Anatomy Studies","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/2702","display_name":"Anatomy"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/pulmonary-surfactant","display_name":"pulmonary surfactant","score":0.9710000157356262},{"id":"https://openalex.org/keywords/lung-maturation","display_name":"lung maturation","score":0.8920000195503235},{"id":"https://openalex.org/keywords/metamorphosis","display_name":"metamorphosis","score":0.9399999976158142},{"id":"https://openalex.org/keywords/bullfrog","display_name":"bullfrog","score":0.9190000295639038},{"id":"https://openalex.org/keywords/bullfrog-tadpoles","display_name":"bullfrog tadpoles","score":0.828000009059906},{"id":"https://openalex.org/keywords/phosphatidylcholine","display_name":"phosphatidylcholine","score":0.9940000176429749},{"id":"https://openalex.org/keywords/phospholipid-composition","display_name":"phospholipid composition","score":0.8479999899864197},{"id":"https://openalex.org/keywords/saturated-fatty-acids","display_name":"saturated fatty acids","score":0.8180000185966492},{"id":"https://openalex.org/keywords/palmitic-acid","display_name":"palmitic acid","score":0.8569999933242798},{"id":"https://openalex.org/keywords/prolactin","display_name":"prolactin","score":0.9739999771118164},{"id":"https://openalex.org/keywords/antisera","display_name":"antisera","score":0.722000002861023},{"id":"https://openalex.org/keywords/amphibian-lung","display_name":"amphibian lung","score":0.8579999804496765}],"concepts":[{"id":"https://openalex.org/C2776020765","wikidata":"https://www.wikidata.org/wiki/Q54087553","display_name":"Bullfrog","level":2,"score":0.9857892394065857},{"id":"https://openalex.org/C136397037","wikidata":"https://www.wikidata.org/wiki/Q33753","display_name":"Metamorphosis","level":3,"score":0.8777275681495667},{"id":"https://openalex.org/C58226133","wikidata":"https://www.wikidata.org/wiki/Q1324199","display_name":"Pulmonary surfactant","level":2,"score":0.8171412348747253},{"id":"https://openalex.org/C2776330855","wikidata":"https://www.wikidata.org/wiki/Q650187","display_name":"Phosphatidylcholine","level":4,"score":0.7304996252059937},{"id":"https://openalex.org/C2778918659","wikidata":"https://www.wikidata.org/wiki/Q186915","display_name":"Phospholipid","level":3,"score":0.6726459264755249},{"id":"https://openalex.org/C91523082","wikidata":"https://www.wikidata.org/wiki/Q420496","display_name":"Antiserum","level":3,"score":0.6377625465393066},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.6025018095970154},{"id":"https://openalex.org/C2779936771","wikidata":"https://www.wikidata.org/wiki/Q209727","display_name":"Palmitic acid","level":3,"score":0.5664160251617432},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.5514906644821167},{"id":"https://openalex.org/C61322309","wikidata":"https://www.wikidata.org/wiki/Q423143","display_name":"Sphingomyelin","level":3,"score":0.5480636358261108},{"id":"https://openalex.org/C2777714996","wikidata":"https://www.wikidata.org/wiki/Q7886","display_name":"Lung","level":2,"score":0.5415892601013184},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.4849388897418976},{"id":"https://openalex.org/C2780726299","wikidata":"https://www.wikidata.org/wiki/Q3078751","display_name":"Phosphatidylglycerol","level":5,"score":0.4787808656692505},{"id":"https://openalex.org/C2781170229","wikidata":"https://www.wikidata.org/wiki/Q426095","display_name":"Phosphatidylethanolamine","level":5,"score":0.4546532928943634},{"id":"https://openalex.org/C2781130464","wikidata":"https://www.wikidata.org/wiki/Q350621","display_name":"Rana","level":2,"score":0.450989305973053},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.43016698956489563},{"id":"https://openalex.org/C173758957","wikidata":"https://www.wikidata.org/wiki/Q129270","display_name":"Larva","level":2,"score":0.4031450152397156},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.33261966705322266},{"id":"https://openalex.org/C543025807","wikidata":"https://www.wikidata.org/wiki/Q61476","display_name":"Fatty acid","level":2,"score":0.27107754349708557},{"id":"https://openalex.org/C203014093","wikidata":"https://www.wikidata.org/wiki/Q101929","display_name":"Immunology","level":1,"score":0.18541640043258667},{"id":"https://openalex.org/C147483822","wikidata":"https://www.wikidata.org/wiki/Q103537","display_name":"Antigen","level":2,"score":0.13525569438934326},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.11444726586341858},{"id":"https://openalex.org/C2778163477","wikidata":"https://www.wikidata.org/wiki/Q43656","display_name":"Cholesterol","level":2,"score":0.09206953644752502},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.08630058169364929},{"id":"https://openalex.org/C41625074","wikidata":"https://www.wikidata.org/wiki/Q176088","display_name":"Membrane","level":2,"score":0.0660557746887207}],"mesh":[{"descriptor_ui":"D000818","descriptor_name":"Animals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007106","descriptor_name":"Immune Sera","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007814","descriptor_name":"Larva","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008168","descriptor_name":"Lung","qualifier_ui":"Q000196","qualifier_name":"embryology","is_major_topic":false},{"descriptor_ui":"D008168","descriptor_name":"Lung","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D008168","descriptor_name":"Lung","qualifier_ui":"Q000648","qualifier_name":"ultrastructure","is_major_topic":false},{"descriptor_ui":"D008675","descriptor_name":"Metamorphosis, Biological","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D008854","descriptor_name":"Microscopy, Electron","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009500","descriptor_name":"Neutralization Tests","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010743","descriptor_name":"Phospholipids","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D011388","descriptor_name":"Prolactin","qualifier_ui":"Q000276","qualifier_name":"immunology","is_major_topic":false},{"descriptor_ui":"D011388","descriptor_name":"Prolactin","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D011663","descriptor_name":"Pulmonary Surfactants","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D011663","descriptor_name":"Pulmonary Surfactants","qualifier_ui":"Q000648","qualifier_name":"ultrastructure","is_major_topic":false},{"descriptor_ui":"D011892","descriptor_name":"Rana catesbeiana","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1002/jez.1402690604","doi":"https://doi.org/10.1002/jez.1402690604","is_oa":false,"landing_page_url":"https://doi.org/10.1002/jez.1402690604","pdf_url":null,"source":{"id":"https://openalex.org/S4210222064","display_name":"Journal of Experimental Zoology","issn_l":"0022-104X","issn":["0022-104X","1097-010X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Experimental Zoology","raw_type":"journal-article"},{"id":"pmid:7931124","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/7931124","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of experimental zoology","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320322638","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W47184522","https://openalex.org/W195983064","https://openalex.org/W199746022","https://openalex.org/W1488452282","https://openalex.org/W1514084706","https://openalex.org/W1518596711","https://openalex.org/W1762349011","https://openalex.org/W1775749144","https://openalex.org/W1964725018","https://openalex.org/W1965362093","https://openalex.org/W1991296759","https://openalex.org/W2008099022","https://openalex.org/W2023447188","https://openalex.org/W2031703487","https://openalex.org/W2038403724","https://openalex.org/W2040957336","https://openalex.org/W2045437769","https://openalex.org/W2053591788","https://openalex.org/W2055803236","https://openalex.org/W2081460803","https://openalex.org/W2083989375","https://openalex.org/W2090327415","https://openalex.org/W2093401815","https://openalex.org/W2096847867","https://openalex.org/W2128439230","https://openalex.org/W2152311269","https://openalex.org/W2164142570","https://openalex.org/W2164616370","https://openalex.org/W2171232243","https://openalex.org/W2172048985","https://openalex.org/W2337334105","https://openalex.org/W2421763882","https://openalex.org/W4300917861"],"related_works":["https://openalex.org/W2053658123","https://openalex.org/W2168371356","https://openalex.org/W1995342538","https://openalex.org/W2045703799","https://openalex.org/W1997023747","https://openalex.org/W2526981258","https://openalex.org/W2089155826","https://openalex.org/W2047719938","https://openalex.org/W2030224010","https://openalex.org/W2019101696"],"abstract_inverted_index":{"In":[0],"bullfrog":[1,128],"(Rana":[2],"catesbeiana)":[3],"tadpoles,":[4],"the":[5,23,51,60,87,110,119,132,146,149,157,160,166,171,178,191],"lung":[6,27,111,147,158,173,193,205],"begins":[7],"to":[8],"function":[9],"at":[10,35,62,118],"an":[11],"advanced":[12,36],"stage":[13],"of":[14,22,38,97,106,121,125,142,148,159,168,188],"metamorphosis.":[15],"As":[16,82],"a":[17,76],"preliminary":[18],"step":[19],"for":[20],"investigation":[21],"mechanisms":[24],"involved":[25,203],"in":[26,59,79,83,86,91,109,137,145,156,170,190,204],"maturation,":[28],"pulmonary":[29,133],"surfactant":[30,88,107,134,143,189],"was":[31,54,89,135,152],"prepared":[32],"from":[33],"tadpoles":[34],"stages":[37],"metamorphosis":[39,197],"and":[40,74,116,180,199],"its":[41],"biochemical":[42],"properties":[43],"were":[44,70],"analyzed.":[45],"Surfactant":[46],"phospholipid":[47],"analysis":[48],"revealed":[49],"that":[50,155,186,200],"major":[52],"constituent":[53],"phosphatidylcholine":[55],"(PC),":[56],"as":[57,196],"examined":[58],"animals":[61],"late":[63],"climax":[64],"(stage":[65],"24).":[66],"Other":[67],"detectable":[68],"phospholipids":[69],"phosphatidylethanolamine,":[71],"phosphatidylserine,":[72],"sphingomyelin,":[73],"phosphatidylglycerol,":[75],"marker":[77],"lipid":[78],"mammalian":[80],"surfactant.":[81],"mammals,":[84],"PC":[85,108,144,169],"rich":[90],"saturated":[92],"fatty":[93,98],"acids,":[94],"about":[95],"50%":[96],"acid":[99],"moieties":[100],"being":[101],"palmitic":[102],"acid.":[103],"The":[104,123,140,183],"content":[105,141,167],"increased":[112],"moderately":[113],"around":[114],"mid-climax":[115],"markedly":[117],"end":[120],"climax.":[122],"effect":[124],"antiserum":[126],"against":[127],"prolactin":[129],"(PRL)":[130],"on":[131],"studied":[136],"climactic":[138],"tadpoles.":[139],"antiserum-treated":[150,179],"larvae":[151],"lower":[153],"than":[154],"normal":[161],"rabbit":[162],"serum-injected":[163],"larvae,":[164],"whereas":[165],"whole":[172],"did":[174],"not":[175],"differ":[176],"between":[177],"control":[181],"groups.":[182],"results":[184],"suggest":[185],"synthesis":[187],"amphibian":[192],"is":[194,202],"enhanced":[195],"progresses":[198],"PRL":[201],"maturation.":[206]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
