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'is': [43, 65, 196, 232], 'characterized': [44], 'by': [45, 205], 'generalized': [47], 'activation': [48, 69, 225], 'immune': [52], 'system.': [53], 'This': [54], 'study': [55], 'was': [56], 'conducted': [57], 'to': [58], 'determine': [59], 'whether': [60], 'or': [61], 'not': [62, 151], 'associated': [66, 197], 'with': [67, 153, 171, 198], 'maternal': [72, 217], 'circulation.Methods.': [73], 'Anaphylatoxins': [74], '(C3a,': [75, 102], 'C4a': [76, 103, 124, 147, 174, 212], 'C5a)': [78, 105], 'were': [79, 106, 113, 127], 'determined': [80, 204], 'plasma': [83, 120, 163, 173], 'pregnant': [86, 132], '(20–42': [87], 'wks;': [88], 'n': [89], '=': [90, 96, 179, 186], '134)': [91], 'non-pregnant': [93, 136], 'women': [94, 133, 137], '(n': [95], '40).': [97], 'These': [98], 'split': [100], 'products': [101], 'measured': [107], 'using': [108], 'specific': [109], 'immunoassays.': [110], 'Non-parametric': [111], 'statistics': [112], 'used': [114], 'analysis.Results.': [116], '1)': [117, 192], 'median': [119, 162], 'concentrations': [121, 177, 207], 'C3a,': [123, 146, 211], 'C5a': [126, 149, 176, 214], 'significantly': [128], 'higher': [129, 206], 'than': [134], '(all': [138], 'p': [139, 181, 188], '<': [140, 182, 189], '0.001);': [141], '2)': [142, 220], 'concentration': [144, 164], 'did': [150], 'change': [152], 'gestational': [154], 'age': [155], '(p': [156], '>': [157], '0.05);': [158], '3)': [160], 'C3a': [166], 'had': [167], 'positive': [169], 'correlation': [170], '(r': [178], '0.36,': [180], '0.001': [183], 'r': [185], '0.35,': [187], '0.001,': [190], 'respectively).Conclusion.': [191], 'Normal': [193], 'human': [194], 'evidence': [199], 'activation,': [202], 'anaphylatoxins': [210], 'circulation;': [218], 'we': [221], 'propose': [222], 'that': [223], 'physiologic': [224], 'system': [229], 'during': [230], 'compensatory': [234], 'mechanism': [235], 'aimed': [236], 'at': [237], 'protecting': [238], 'host': [240], 'against': [241], 'infection.Complement': [242], 'systemanaphylatoxinsinnate': [243], 'immunitypregnancyC3aC4aC5a': [244]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2077506189', 'counts_by_year': [{'year': 2024, 'cited_by_count': 5}, {'year': 2023, 'cited_by_count': 12}, {'year': 2022, 'cited_by_count': 16}, {'year': 2021, 'cited_by_count': 13}, {'year': 2020, 'cited_by_count': 15}, {'year': 2019, 'cited_by_count': 14}, {'year': 2018, 'cited_by_count': 13}, {'year': 2017, 'cited_by_count': 12}, {'year': 2016, 'cited_by_count': 10}, {'year': 2015, 'cited_by_count': 9}, {'year': 2014, 'cited_by_count': 10}, {'year': 2013, 'cited_by_count': 5}, {'year': 2012, 'cited_by_count': 7}], 'updated_date': '2024-09-11T14:35:29.280003', 'created_date': '2016-06-24'}