{"id":"https://openalex.org/W2087438568","doi":"https://doi.org/10.1111/j.1471-0528.1997.tb12073.x","title":"Amniotic membrane collagen content and type distribution in women with preterm premature rupture of the membranes in pregnancy","display_name":"Amniotic membrane collagen content and type distribution in women with preterm premature rupture of the membranes in pregnancy","publication_year":1997,"publication_date":"1997-09-01","ids":{"openalex":"https://openalex.org/W2087438568","doi":"https://doi.org/10.1111/j.1471-0528.1997.tb12073.x","mag":"2087438568","pmid":"https://pubmed.ncbi.nlm.nih.gov/9307541"},"language":"en","primary_location":{"id":"doi:10.1111/j.1471-0528.1997.tb12073.x","doi":"https://doi.org/10.1111/j.1471-0528.1997.tb12073.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1471-0528.1997.tb12073.x","pdf_url":null,"source":{"id":"https://openalex.org/S4210173111","display_name":"BJOG An International Journal of Obstetrics & Gynaecology","issn_l":"0306-5456","issn":["0306-5456","1365-215X","1470-0328","1471-0528"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"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":"BJOG: An International Journal of Obstetrics & Gynaecology","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/A5033754685","display_name":"Victoria Hampson","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I52590639","display_name":"Nottingham Trent University","ror":"https://ror.org/04xyxjd90","country_code":"GB","type":"education","lineage":["https://openalex.org/I52590639"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Victoria Hampson","raw_affiliation_strings":["Department of Life Sciences, Nottingham Trent University, UK","Department of Life Sciences, Nottingham Trent University, Nottingham"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Life Sciences, Nottingham Trent University, UK","institution_ids":["https://openalex.org/I52590639"]},{"raw_affiliation_string":"Department of Life Sciences, Nottingham Trent University, Nottingham","institution_ids":["https://openalex.org/I52590639"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025212908","display_name":"D. T. Y. Liu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2802921333","display_name":"Nottingham City Hospital","ror":"https://ror.org/0022b3c04","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1334287468","https://openalex.org/I2802921333"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"David Liu","raw_affiliation_strings":["Department of Obstetrics and Gynaecology, Nottingham City Hospital, Nottingham"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynaecology, Nottingham City Hospital, Nottingham","institution_ids":["https://openalex.org/I2802921333"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085893672","display_name":"E. Ellen Billett","orcid":"https://orcid.org/0000-0001-8245-6519","observed_orcids":["https://orcid.org/0000-0001-8245-6519"]},"institutions":[{"id":"https://openalex.org/I52590639","display_name":"Nottingham Trent University","ror":"https://ror.org/04xyxjd90","country_code":"GB","type":"education","lineage":["https://openalex.org/I52590639"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ellen Billett","raw_affiliation_strings":["Department of Life Sciences, Nottingham Trent University, Nottingham"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Life Sciences, Nottingham Trent University, Nottingham","institution_ids":["https://openalex.org/I52590639"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062975996","display_name":"Sandra H. Kirk","orcid":"https://orcid.org/0000-0003-1899-7059","observed_orcids":["https://orcid.org/0000-0003-1899-7059"]},"institutions":[{"id":"https://openalex.org/I52590639","display_name":"Nottingham Trent University","ror":"https://ror.org/04xyxjd90","country_code":"GB","type":"education","lineage":["https://openalex.org/I52590639"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Sandra Kirk","raw_affiliation_strings":["Department of Life Sciences, Nottingham Trent University, Nottingham"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Life Sciences, Nottingham Trent University, Nottingham","institution_ids":["https://openalex.org/I52590639"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5062975996"],"corresponding_institution_ids":["https://openalex.org/I52590639"],"apc_list":{"value":5190,"currency":"USD","value_usd":5190},"apc_paid":null,"fwci":1.7007,"has_fulltext":false,"cited_by_count":52,"citation_normalized_percentile":{"value":0.81759069,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":98},"biblio":{"volume":"104","issue":"9","first_page":"1087","last_page":"1091"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11290","display_name":"Preterm Birth and Chorioamnionitis","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T11290","display_name":"Preterm Birth and Chorioamnionitis","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T10453","display_name":"Maternal and Perinatal Health Interventions","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T12715","display_name":"Pregnancy-related medical research","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/preterm-prelabour-rupture-of-membranes","display_name":"preterm prelabour rupture of membranes","score":0.8560000061988831},{"id":"https://openalex.org/keywords/amniotic-membrane","display_name":"amniotic membrane","score":0.9700000286102295},{"id":"https://openalex.org/keywords/collagen-content","display_name":"collagen content","score":0.8859999775886536},{"id":"https://openalex.org/keywords/collagen-types","display_name":"collagen types","score":0.6990000009536743},{"id":"https://openalex.org/keywords/type-i-collagen","display_name":"type I collagen","score":0.9190000295639038},{"id":"https://openalex.org/keywords/type-iii-collagen","display_name":"type III collagen","score":1.0},{"id":"https://openalex.org/keywords/fibrillar-collagen","display_name":"fibrillar collagen","score":0.7799999713897705},{"id":"https://openalex.org/keywords/preterm-birth","display_name":"preterm birth","score":0.6970000267028809},{"id":"https://openalex.org/keywords/proteolytic-activity","display_name":"proteolytic activity","score":0.7170000076293945},{"id":"https://openalex.org/keywords/collagen-expression","display_name":"collagen expression","score":0.7670000195503235}],"concepts":[{"id":"https://openalex.org/C2780646683","wikidata":"https://www.wikidata.org/wiki/Q473749","display_name":"Amnion","level":4,"score":0.8547928929328918},{"id":"https://openalex.org/C2778194526","wikidata":"https://www.wikidata.org/wiki/Q901674","display_name":"Amniotic fluid","level":4,"score":0.6682314872741699},{"id":"https://openalex.org/C41625074","wikidata":"https://www.wikidata.org/wiki/Q176088","display_name":"Membrane","level":2,"score":0.6291617751121521},{"id":"https://openalex.org/C16685009","wikidata":"https://www.wikidata.org/wiki/Q335057","display_name":"Andrology","level":1,"score":0.5871455669403076},{"id":"https://openalex.org/C2780899479","wikidata":"https://www.wikidata.org/wiki/Q5445907","display_name":"Fetal membrane","level":5,"score":0.5577772855758667},{"id":"https://openalex.org/C2777102558","wikidata":"https://www.wikidata.org/wiki/Q11703370","display_name":"Premature rupture of membranes","level":4,"score":0.5185052156448364},{"id":"https://openalex.org/C2780644872","wikidata":"https://www.wikidata.org/wiki/Q14881714","display_name":"Type I collagen","level":2,"score":0.5010852813720703},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.4918951988220215},{"id":"https://openalex.org/C2776714187","wikidata":"https://www.wikidata.org/wiki/Q212410","display_name":"Protease","level":3,"score":0.46515733003616333},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.4181540906429291},{"id":"https://openalex.org/C172680121","wikidata":"https://www.wikidata.org/wiki/Q26513","display_name":"Fetus","level":3,"score":0.40936699509620667},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.36754292249679565},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.28425925970077515},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.2458098828792572},{"id":"https://openalex.org/C181199279","wikidata":"https://www.wikidata.org/wiki/Q8047","display_name":"Enzyme","level":2,"score":0.19442546367645264},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.185476154088974},{"id":"https://openalex.org/C2776953305","wikidata":"https://www.wikidata.org/wiki/Q1212935","display_name":"Placenta","level":4,"score":0.08935925364494324},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000650","descriptor_name":"Amnion","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D003094","descriptor_name":"Collagen","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D003094","descriptor_name":"Collagen","qualifier_ui":"Q000737","qualifier_name":"chemistry","is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005322","descriptor_name":"Premature Rupture of Fetal Membranes","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D005865","descriptor_name":"Gestational Age","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007752","descriptor_name":"Obstetric Labor, Premature","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D011247","descriptor_name":"Pregnancy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":3,"locations":[{"id":"doi:10.1111/j.1471-0528.1997.tb12073.x","doi":"https://doi.org/10.1111/j.1471-0528.1997.tb12073.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1471-0528.1997.tb12073.x","pdf_url":null,"source":{"id":"https://openalex.org/S4210173111","display_name":"BJOG An International Journal of Obstetrics & Gynaecology","issn_l":"0306-5456","issn":["0306-5456","1365-215X","1470-0328","1471-0528"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"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":"BJOG: An International Journal of Obstetrics & Gynaecology","raw_type":"journal-article"},{"id":"pmid:9307541","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/9307541","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":"British journal of obstetrics and gynaecology","raw_type":"Journal Article"},{"id":"pmh:oai:irep.ntu.ac.uk:8986","doi":null,"is_oa":false,"landing_page_url":"http://irep.ntu.ac.uk/id/eprint/8986/","pdf_url":null,"source":{"id":"https://openalex.org/S4306400559","display_name":"Nottingham Trent University's Institutional Repository (Nottingham Trent Repository)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I52590639","host_organization_name":"Nottingham Trent University","host_organization_lineage":["https://openalex.org/I52590639"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8560000061988831,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320311701","display_name":"Nottingham Trent University","ror":"https://ror.org/04xyxjd90"},{"id":"https://openalex.org/F4320320006","display_name":"Royal Society","ror":"https://ror.org/03wnrjx87"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W176171940","https://openalex.org/W1978987630","https://openalex.org/W1987312816","https://openalex.org/W1997655188","https://openalex.org/W2003896405","https://openalex.org/W2011408002","https://openalex.org/W2036868270","https://openalex.org/W2043669410","https://openalex.org/W2090719812","https://openalex.org/W2132580304","https://openalex.org/W2407404762","https://openalex.org/W2431268608"],"related_works":["https://openalex.org/W1987312816","https://openalex.org/W2431268608","https://openalex.org/W1505592381","https://openalex.org/W2413628675","https://openalex.org/W2132580304","https://openalex.org/W2057345927","https://openalex.org/W2023171455","https://openalex.org/W2093768968","https://openalex.org/W2412502849","https://openalex.org/W2084181267"],"abstract_inverted_index":{"Amniotic":[0],"membrane":[1],"samples":[2],"were":[3,32,41],"taken":[4],"following":[5],"preterm":[6,12],"delivery":[7],"from":[8,25],"15":[9],"women":[10],"with":[11,21,53,71],"prelabour":[13],"rupture":[14],"of":[15,62],"the":[16],"membranes":[17],"(PPROM)":[18],"and":[19,24,34],"14":[20],"unrelated":[22],"reasons,":[23],"25":[26],"delivering":[27],"at":[28],"term.":[29],"Fibrillar":[30],"collagens":[31],"extracted":[33],"analysed":[35],"by":[36,80],"interrupted":[37],"gel":[38],"electrophoresis.":[39],"Collagens":[40],"decreased":[42],"in":[43,83,97,101,104],"PPROM":[44,77],"relative":[45],"to":[46,65],"controls,":[47],"but":[48],"showed":[49],"similar":[50],"sub-type":[51],"distribution,":[52],"one":[54],"exception.":[55],"In":[56,75],"this":[57],"case":[58],"an":[59],"increased":[60],"ratio":[61],"Type":[63,66],"I":[64],"III":[67],"collagen":[68,73,85,102],"was":[69],"observed,":[70],"normal":[72],"content.":[74],"conclusion,":[76],"is":[78],"accompanied":[79],"generalised":[81],"reduction":[82],"amnion":[84],"content,":[86],"involving":[87],"all":[88],"fibrillar":[89],"sub-types":[90],"monitored.":[91],"This":[92],"may":[93],"reflect":[94],"general":[95],"changes":[96],"protease":[98],"activity":[99],"or":[100],"expression":[103],"affected":[105],"membranes.":[106]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":5},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}