{"id":"https://openalex.org/W2011680013","doi":"https://doi.org/10.2307/3281092","title":"Plasmodium falciparum Merozoites: Isolation by Density Gradient Centrifugation Using Percoll and Antigenic Analysis","display_name":"Plasmodium falciparum Merozoites: Isolation by Density Gradient Centrifugation Using Percoll and Antigenic Analysis","publication_year":1982,"publication_date":"1982-12-01","ids":{"openalex":"https://openalex.org/W2011680013","doi":"https://doi.org/10.2307/3281092","mag":"2011680013","pmid":"https://pubmed.ncbi.nlm.nih.gov/6184466"},"language":"en","primary_location":{"id":"doi:10.2307/3281092","doi":"https://doi.org/10.2307/3281092","is_oa":true,"landing_page_url":"https://doi.org/10.2307/3281092","pdf_url":null,"source":{"id":"https://openalex.org/S31573680","display_name":"Journal of Parasitology","issn_l":"0022-3395","issn":["0022-3395","1937-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","medline","norway-1","poland-70","russia-white-list-3"],"host_organization":"https://openalex.org/P4310316431","host_organization_name":"American Society of Parasitologists","host_organization_lineage":["https://openalex.org/P4310316431"],"host_organization_lineage_names":["American Society of Parasitologists"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Parasitology","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.2307/3281092","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5103691017","display_name":"Harold A. Stanley","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Harold A. Stanley","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009979404","display_name":"Susan G. Langreth","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Susan G. Langreth","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085764152","display_name":"Robert T. Reese","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Robert T. Reese","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":null,"display_name":"William Trager","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"William Trager","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.4369,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.91463415,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":93},"biblio":{"volume":"68","issue":"6","first_page":"1059","last_page":"1059"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10091","display_name":"Malaria Research and Control","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T10091","display_name":"Malaria Research and Control","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T12286","display_name":"Erythrocyte Function and Pathophysiology","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T11155","display_name":"Toxoplasma gondii Research Studies","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2405","display_name":"Parasitology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/plasmodium-falciparum","display_name":"Plasmodium falciparum","score":1.0},{"id":"https://openalex.org/keywords/merozoites","display_name":"merozoites","score":0.9929999709129333},{"id":"https://openalex.org/keywords/percoll-gradient-centrifugation","display_name":"Percoll density gradient centrifugation","score":0.9470000267028809},{"id":"https://openalex.org/keywords/residual-bodies","display_name":"residual bodies","score":0.6729999780654907},{"id":"https://openalex.org/keywords/membrane-vesicles","display_name":"membrane vesicles","score":0.890999972820282},{"id":"https://openalex.org/keywords/antigenic-analysis","display_name":"antigenic analysis","score":0.5830000042915344},{"id":"https://openalex.org/keywords/immunocytochemistry","display_name":"immunocytochemistry","score":0.6380000114440918}],"concepts":[{"id":"https://openalex.org/C48679268","wikidata":"https://www.wikidata.org/wiki/Q3375169","display_name":"Percoll","level":3,"score":0.9758024215698242},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.8794023990631104},{"id":"https://openalex.org/C7623868","wikidata":"https://www.wikidata.org/wiki/Q1967135","display_name":"Centrifugation","level":2,"score":0.7158012390136719},{"id":"https://openalex.org/C132946820","wikidata":"https://www.wikidata.org/wiki/Q2509459","display_name":"Differential centrifugation","level":2,"score":0.6765764951705933},{"id":"https://openalex.org/C147483822","wikidata":"https://www.wikidata.org/wiki/Q103537","display_name":"Antigen","level":2,"score":0.6668812036514282},{"id":"https://openalex.org/C2778371730","wikidata":"https://www.wikidata.org/wiki/Q311383","display_name":"Plasmodium falciparum","level":3,"score":0.6396320462226868},{"id":"https://openalex.org/C130316041","wikidata":"https://www.wikidata.org/wiki/Q189206","display_name":"Vesicle","level":3,"score":0.4754107594490051},{"id":"https://openalex.org/C89423630","wikidata":"https://www.wikidata.org/wiki/Q7193","display_name":"Microbiology","level":1,"score":0.46336671710014343},{"id":"https://openalex.org/C71928629","wikidata":"https://www.wikidata.org/wiki/Q804206","display_name":"Parasite hosting","level":2,"score":0.4450169503688812},{"id":"https://openalex.org/C159654299","wikidata":"https://www.wikidata.org/wiki/Q79460","display_name":"Antibody","level":2,"score":0.43960708379745483},{"id":"https://openalex.org/C8891405","wikidata":"https://www.wikidata.org/wiki/Q1059","display_name":"Immune system","level":2,"score":0.4146310091018677},{"id":"https://openalex.org/C153911025","wikidata":"https://www.wikidata.org/wiki/Q7202","display_name":"Molecular biology","level":1,"score":0.39814430475234985},{"id":"https://openalex.org/C159047783","wikidata":"https://www.wikidata.org/wiki/Q7215","display_name":"Virology","level":1,"score":0.34141695499420166},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.21729212999343872},{"id":"https://openalex.org/C2778048844","wikidata":"https://www.wikidata.org/wiki/Q12156","display_name":"Malaria","level":2,"score":0.1856638491153717},{"id":"https://openalex.org/C203014093","wikidata":"https://www.wikidata.org/wiki/Q101929","display_name":"Immunology","level":1,"score":0.16238471865653992},{"id":"https://openalex.org/C41625074","wikidata":"https://www.wikidata.org/wiki/Q176088","display_name":"Membrane","level":2,"score":0.1611866056919098},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000939","descriptor_name":"Epitopes","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":true},{"descriptor_ui":"D002499","descriptor_name":"Centrifugation, Density Gradient","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010963","descriptor_name":"Plasmodium falciparum","qualifier_ui":"Q000254","qualifier_name":"growth & development","is_major_topic":false},{"descriptor_ui":"D010963","descriptor_name":"Plasmodium falciparum","qualifier_ui":"Q000276","qualifier_name":"immunology","is_major_topic":false},{"descriptor_ui":"D010963","descriptor_name":"Plasmodium falciparum","qualifier_ui":"Q000302","qualifier_name":"isolation & purification","is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.2307/3281092","doi":"https://doi.org/10.2307/3281092","is_oa":true,"landing_page_url":"https://doi.org/10.2307/3281092","pdf_url":null,"source":{"id":"https://openalex.org/S31573680","display_name":"Journal of Parasitology","issn_l":"0022-3395","issn":["0022-3395","1937-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","medline","norway-1","poland-70","russia-white-list-3"],"host_organization":"https://openalex.org/P4310316431","host_organization_name":"American Society of Parasitologists","host_organization_lineage":["https://openalex.org/P4310316431"],"host_organization_lineage_names":["American Society of Parasitologists"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Parasitology","raw_type":"journal-article"},{"id":"pmid:6184466","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/6184466","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 parasitology","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.2307/3281092","doi":"https://doi.org/10.2307/3281092","is_oa":true,"landing_page_url":"https://doi.org/10.2307/3281092","pdf_url":null,"source":{"id":"https://openalex.org/S31573680","display_name":"Journal of Parasitology","issn_l":"0022-3395","issn":["0022-3395","1937-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","medline","norway-1","poland-70","russia-white-list-3"],"host_organization":"https://openalex.org/P4310316431","host_organization_name":"American Society of Parasitologists","host_organization_lineage":["https://openalex.org/P4310316431"],"host_organization_lineage_names":["American Society of Parasitologists"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Parasitology","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.766700029373169,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W158892865","https://openalex.org/W826817463","https://openalex.org/W963631923","https://openalex.org/W1446378048","https://openalex.org/W1486595929","https://openalex.org/W1516448966","https://openalex.org/W1524258011","https://openalex.org/W1541178762","https://openalex.org/W1969503178","https://openalex.org/W1972262219","https://openalex.org/W1972368645","https://openalex.org/W1986178811","https://openalex.org/W2000490615","https://openalex.org/W2012390114","https://openalex.org/W2020251171","https://openalex.org/W2022251129","https://openalex.org/W2032230798","https://openalex.org/W2089810417","https://openalex.org/W2105923417","https://openalex.org/W2336622083","https://openalex.org/W2410408364","https://openalex.org/W2416050797","https://openalex.org/W4321429217"],"related_works":["https://openalex.org/W2067150139","https://openalex.org/W2291080756","https://openalex.org/W2035295033","https://openalex.org/W156535560","https://openalex.org/W2468012683","https://openalex.org/W2206736053","https://openalex.org/W2321692484","https://openalex.org/W1997692187","https://openalex.org/W2104672297","https://openalex.org/W1973792398"],"abstract_inverted_index":{"Merozoites":[0,92],"of":[1,39,130,163],"Plasmodium":[2],"falciparum":[3],"were":[4,18,43,58,65,99,132],"isolated":[5],"and":[6,14,31,74,81,83,96],"immunocytochemically":[7],"analyzed.":[8],"Mature":[9],"parasites":[10],"from":[11,93,110,137],"knobby":[12],"(K+)":[13],"knobless":[15],"(K-)":[16],"strains":[17,98],"incubated":[19],"for":[20],"4":[21],"to":[22,37,53,134,159],"5":[23],"hr":[24],"in":[25],"RPMI":[26],"1640":[27],"with":[28,67,121,142,165],"10%":[29,32,68],"serum":[30,109,144,147],"RBC":[33],"extract.":[34],"About":[35],"12":[36],"14%":[38],"the":[40,94,116,122,126],"merozoites":[41,57,164],"released":[42],"recovered":[44],"by":[45,102,168],"density":[46],"gradient":[47],"centrifugation":[48],"using":[49,108],"Percoll.":[50],"From":[51],"1":[52],"3":[54],"X":[55],"10(9)":[56],"obtained":[59],"per":[60],"collection.":[61],"The":[62],"merozoite":[63],"preparations":[64],"contaminated":[66],"residual":[69,117],"bodies,":[70],"about":[71,77],"0.1%":[72,78],"infected":[73],"uninfected":[75],"erythrocytes,":[76],"RBC-free":[79],"trophozoites":[80],"schizonts,":[82],"numerous":[84],"small":[85],"(less":[86],"than":[87],"0.5":[88],"microns)":[89],"membrane":[90,127],"vesicles.":[91],"K+":[95],"K-":[97],"morphologically":[100],"and,":[101],"an":[103],"indirect,":[104],"ferritin-labeled":[105],"antibody":[106],"assay":[107],"immune":[111,123],"Aotus,":[112],"antigenically":[113],"indistinguishable.":[114],"Although":[115],"body":[118],"coats":[119],"reacted":[120],"Aotus":[124],"serum,":[125],"vesicles,":[128],"some":[129],"which":[131],"seen":[133],"be":[135,157],"blebbing":[136],"merozoites,":[138],"did":[139],"not":[140],"react":[141],"this":[143],"or":[145],"a":[146,153],"against":[148],"erythrocytes.":[149,170],"This":[150],"paper":[151],"describes":[152],"procedure":[154],"that":[155],"can":[156],"used":[158],"obtain":[160],"large":[161],"numbers":[162],"little":[166],"contamination":[167],"host":[169]},"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
