Dose-dependent induction of astrocyte activation and reactive astrogliosis in mouse brain following maternal exposure to carbon black nanoparticle
Open accessAbstract
BACKGROUND: Recent studies indicate that maternal exposure to ambient ultrafine particles and nanoparticles has adverse effects of on the central nervous system. Quantitative dose-response data is required to better understand the developmental neurotoxicity of nanoparticles. The present study investigated dose-dependent effects of maternal exposure to carbon black nanoparticle (CB-NP) on astrocyte in the brains of mouse offspring. METHODS: A CB-NP suspension (2.9, 15, or 73 μg/kg) was intranasally administered to pregnant ICR mice on gestational days 5 and 9. Cerebral cortex samples were collected from 6-week-old offspring and examined by Western blotting, immunostaining, microarray analysis, and quantitative reverse transcriptase-polymerase chain reaction. Placentae were collected from pregnant dams on gestational day 13 and examined by microarray analysis. RESULTS: Maternal exposure to CB-NP induced a dose-dependent increase in glial fibrillary acidic protein (GFAP) expression in the cerebral cortex; this increase was particularly observed in astrocytic end-feet attached to denatured perivascular macrophages. Moreover, maternal CB-NP exposure dose-dependently increased aquaporin-4 expression in the brain parenchyma region around blood vessels. The changes in the expression profiles of GFAP and Aqp4 in offspring after maternal CB-NP exposure were similar to those observed in mice of a more advanced age. The expression levels of mRNAs associated with angiogenesis, cell migration, proliferation, chemotaxis, and growth factor production were also altered in the cerebral cortex of offspring after maternal CB-NP exposure. Differentially expressed genes in placental tissues after CB-NP exposure did not populate any specific gene ontology category. CONCLUSIONS: Maternal CB-NP exposure induced long-term activation of astrocytes resulting in reactive astrogliosis in the brains of young mice. Our observations suggest a potentially increased risk of the onset of age-related neurodegenerative diseases by maternal NP exposure. In this study, we report for the first time a quantitative dose-response relationship between maternal NP exposure and phenotypic changes in the central nervous system of the offspring. Moreover, our findings indicate that cortical GFAP and Aqp4 are useful biomarkers that can be employed in further studies aiming to elucidate the underlying mechanism of nanoparticle-mediated developmental neurotoxicity.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Increased expression of glial fibrillary acidic protein has consistently been correlated with developmental PM2.5 and PM0.1 exposure.
“Increased expression of the glial fibrillary acidic protein (GFAP), a marker of activated astrocytes, has consistently been correlated with developmental PM2.5 and PM0.1 exposure [113, 114].”
From Air pollution and children’s health—a review of adverse effects associated with prenatal exposure from fine to ultrafine particulate matter (2021) · cites this paper as [113]
The Results (GFAP expression levels in the cerebral cortex) report significantly increased GFAP in offspring after middle- and high-dose maternal carbon black nanoparticle exposure. The study supports an association for this nanoparticle exposure, but does not establish that the finding is consistent across developmental PM2.5 and PM0.1 exposures. (LLM, conf=0.84)
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Iliff, J. J., Wang, M., Liao, Y., Plogg, B. A., Peng, W., Gundersen, G. A., Benveniste, H., Vates, G. E., Deane, R., Goldman, S. A., et al. (2012) · Science Translational Medicine · doi:10.1126/scitranslmed.3003748 · Cited by 5,824 · see citing works
Impairment of paravascular clearance pathways in the aging brain
Kress, B. T., Iliff, J. J., Xia, M., Wang, M., Wei, H. S., Zeppenfeld, D., Xie, L., Kang, H., Xu, Q., Liew, J. A., et al. (2014) · Annals of Neurology · doi:10.1002/ana.24271 · Cited by 1,521 · cited 4× · see citing works
“Quantification was performed as per a previous study that detected changes in the expression level of GFAP and Aqp4 around blood vessels in the cerebral cortex [18].”
BackgroundMethodInfluentialReactive astrogliosis in the neonatal mouse brain and its modulation by cytokines
Balasingam, V, Tejada-Berges, T., Wright, E., Bouckova, R., & Yong, V. (1994) · The Journal of Neuroscience · doi:10.1523/jneurosci.14-02-00846.1994 · Cited by 342 · see citing works
Allen, J. L., Oberdorster, G., Morris-Schaffer, K., Wong, C., Klocke, C., Sobolewski, M., Conrad, K., Mayer-Proschel, M., & Cory-Slechta, D. A. (2017) · NeuroToxicology · doi:10.1016/j.neuro.2015.12.014 · Cited by 241 · see citing works
Mato, M., Ookawara, S., Sakamoto, A., Aikawa, E., Ogawa, T., Mitsuhashi, U., Masuzawa, T., Suzuki, H., Honda, M., Yazaki, Y., et al. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.8.3269 · Cited by 187 · see citing works
Flagged first, then by citations
Research works printed but not linked: 62
- [1]Bakand S Hayes A Toxicological considerations, toxicity assessment, and risk management of inhaled nanoparticles Int J Mol Sci 2016 17 6 929 10.3390/ijms17060929 PMC4926462 27314324 · DOI
- [2]Grandjean P Landrigan PJ Neurobehavioural effects of developmental toxicity Lancet Neurol 2014 13 3 330 338 10.1016/S1474-4422(13)70278-3 24556010 PMC4418502 · DOI · Paper page
- [3]McQuillen PS Ferriero DM Selective vulnerability in the developing central nervous system Pediatr Neurol 2004 30 4 227 235 10.1016/j.pediatrneurol.2003.10.001 15087099 · DOI
- [5]Raz R Roberts AL Lyall K Hart JE Just AC Laden F Autism spectrum disorder and particulate matter air pollution before, during, and after pregnancy: a nested case–control analysis within the Nurses’ health study II cohort Environ Health Perspect 2015 123 3 264 270 25522338 PMC4348742
- [6]Woodward N Finch CE Morgan TE Traffic-related air pollution and brain development AIMS Environ Sci 2015 2 2 353 373 10.3934/environsci.2015.2.353 27099868 PMC4835031 · DOI
- [7]Ema M, Gamo M, Honda K. Developmental toxicity of engineered nanomaterials in rodents. Toxicol Appl Pharmacol. 2016a;299:47–52. 26721308
- [8]Ema M, Hougaard KS, Kishimoto A, Honda K. Reproductive and developmental toxicity of carbon-based nanomaterials: A literature review. Nanotoxicology. 2016b;10(4):391–412. 26375634
- [9]Hougaard KS Campagnolo L Chavatte-Palmer P Tarrade A Rousseau-Ralliard D Valentino S A perspective on the developmental toxicity of inhaled nanoparticles Reprod Toxicol 2015 56 118 140 10.1016/j.reprotox.2015.05.015 26050605 · DOI
- [10]Powers CM Bale AS Kraft AD Makris SL Trecki J Cowden J Developmental neurotoxicity of engineered nanomaterials: identifying research needs to support human health risk assessment Toxicol Sci 2013 134 2 225 242 10.1093/toxsci/kft109 23708405 · DOI
- [11]Jackson P Vogel U Wallin H Hougaard KS Prenatal exposure to carbon black (printex 90): effects on sexual development and neurofunction Basic Clin Pharmacol Toxicol 2011 109 6 434 437 10.1111/j.1742-7843.2011.00745.x 21699657 · DOI
- [12]Jackson P Hougaard KS Boisen AM Jacobsen NR Jensen KA Møller P Pulmonary exposure to carbon black by inhalation or instillation in pregnant mice: effects on liver DNA strand breaks in dams and offspring Nanotoxicology 2012 6 5 486 500 10.3109/17435390.2011.587902 21649560 PMC3411122 · DOI
- [13]Onoda A Umezawa M Takeda K Ihara T Sugamata M Effects of maternal exposure to ultrafine carbon black on brain perivascular macrophages and surrounding astrocytes in offspring mice PLoS One 2014 9 4 e94336 10.1371/journal.pone.0094336 24722459 PMC3983141 · DOI
- [14]Yang W Wu Q Yuan C Gao J Xiao M Gu M Aquaporin-4 mediates astrocyte response to β-amyloid Mol Cell Neurosci 2012 49 4 406 414 10.1016/j.mcn.2012.02.002 22365952 · DOI
- [15]Pietroiusti A Massimiani M Fenoglio I Colonna M Valentini F Palleschi G Low doses of pristine and oxidized single-wall carbon nanotubes affect mammalian embryonic development ACS Nano 2011 5 6 4624 4633 10.1021/nn200372g 21615177 · DOI
- [17]Kilkenny C Browne W Cuthill IC Emerson M Altman DG National Centre for the Replacement, Refinement and Reduction of Amimals in Research. Animal research: reporting in vivo experiments--the ARRIVE guidelines J Cereb Blood Flow Metab 2011 31 4 991 993 10.1038/jcbfm.2010.220 21206507 PMC3070981 · DOI · Paper page
- [19]Brazma A Hingamp P Quackenbush J Sherlock G Spellman P Stoeckert C Minimum information about a microarray experiment (MIAME)-toward standards for microarray data Nat Genet 2001 29 4 365 371 10.1038/ng1201-365 11726920 · DOI · Paper page
- [20]Zahurak M Parmigiani G Yu W Scharpf RB Berman D Schaeffer E Pre-processing Agilent microarray data BMC Bioinformatics 2007 8 142 10.1186/1471-2105-8-142 17472750 PMC1876252 · DOI
- [21]Haley GE Kohama SG Urbanski HF Raber J Age-related decreases in SYN levels associated with increases in MAP-2, apoE, and GFAP levels in the rhesus macaque precerebral cortex and hippocampus Age (Dordr) 2010 32 3 283 296 10.1007/s11357-010-9137-9 20640549 PMC2926858 · DOI
- [22]Gupta RK Kanungo M Glial molecular alterations with mouse brain development and aging: up-regulation of the Kir4.1 and aquaporin-4 Age (Dordr) 2013 35 1 59 67 10.1007/s11357-011-9330-5 22057895 PMC3543735 · DOI
- [23]Rodríguez JJ Olabarria M Chvatal A Verkhratsky A Astroglia in dementia and alzheimer’s disease Cell Death Differ 2009 16 3 378 385 10.1038/cdd.2008.172 19057621 · DOI
- [24]Abbott NJ Astrocyte-endothelial interactions and blood–brain barrier permeability J Anat 2002 200 6 629 638 10.1046/j.1469-7580.2002.00064.x 12162730 PMC1570746 · DOI · Paper page
- [25]Dringen R Brandmann M Hohnholt MC Blumrich EM Glutathione-dependent detoxification processes in astrocytes Neurochem Res 2015 40 12 2570 2582 10.1007/s11064-014-1481-1 25428182 · DOI
- [26]Pekny M Nilsson M Astrocyte activation and reactive gliosis Glia 2005 50 4 427 434 10.1002/glia.20207 15846805 · DOI · Paper page
- [27]Pekny M Wilhelmsson U Pekna M The dual role of astrocyte activation and reactive gliosis Neurosci Lett 2014 565 30 38 10.1016/j.neulet.2013.12.071 24406153 · DOI
- [29]Moon C Ahn M Kim S Jin JK Sim KB Kim HM Temporal patterns of the embryonic intermediate filaments nestin and vimentin expression in the cerebral cortex of adult rats after cryoinjury Brain Res 2004 1028 2 238 242 10.1016/j.brainres.2004.09.022 15527750 · DOI
- [30]Yang Z Wang KK Glial fibrillary acidic protein: from intermediate filament assembly and gliosis to neurobiomarker Trends Neurosci 2015 38 6 364 374 10.1016/j.tins.2015.04.003 25975510 PMC4559283 · DOI · Paper page
- [31]Butt AM Hamilton N Hubbard P Pugh M Ibrahim M Synantocytes: the fifth element J Anat 2005 207 6 695 706 10.1111/j.1469-7580.2005.00458.x 16367797 PMC1571581 · DOI
- [32]Pekny M Wilhelmsson U Bogestål YR Pekna M The role of astrocytes and complement system in neural plasticity Int Rev Neurobiol 2007 82 95 111 10.1016/S0074-7742(07)82005-8 17678957 · DOI
- [33]Badaut J Copin JC Fukuda AM Gasche Y Schaller K da Silva RF Increase of arginase activity in old apolipoprotein-E deficient mice under western diet associated with changes in neurovascular unit J Neuroinflammation 2012 9 132 10.1186/1742-2094-9-132 22709928 PMC3419627 · DOI
- [34]Haj-Yasein NN Vindedal GF Eilert-Olsen M Gundersen GA Skare Ø Laake P Glial-conditional deletion of aquaporin-4 (Aqp4) reduces blood–brain water uptake and confers barrier function on perivascular astrocyte endfeet Proc Natl Acad Sci U S A 2011 108 43 17815 17820 10.1073/pnas.1110655108 21990350 PMC3203818 · DOI
- [35]Kohama SG Goss JR Finch CE McNeill TH Increases of glial fibrillary acidic protein in the aging female mouse brain Neurobiol Aging 1995 16 1 59 67 10.1016/0197-4580(95)80008-F 7723937 · DOI
- [36]Nichols NR Day JR Laping NJ Johnson SA Finch CE GFAP mRNA increases with age in rat and human brain Neurobiol Aging 1993 14 5 421 429 10.1016/0197-4580(93)90100-P 8247224 · DOI · Paper page
- [37]Morishima T Aoyama M Iida Y Yamamoto N Hirate H Arima H Lactic acid increases aquaporin 4 expression on the cell membrane of cultured rat astrocytes Neurosci Res 2008 61 1 18 26 10.1016/j.neures.2008.01.005 18406487 · DOI
- [38]Ito H Yamamoto N Arima H Hirate H Morishima T Umenishi F Interleukin-1beta induces the expression of aquaporin-4 through a nuclear factor-kappaB pathway in rat astrocytes J Neurochem 2006 99 1 107 118 10.1111/j.1471-4159.2006.04036.x 16987239 · DOI
- [39]Vajda Z Promeneur D Dóczi T Sulyok E Frøkiaer J Ottersen OP Increased aquaporin-4 immunoreactivity in rat brain in response to systemic hyponatremia Biochem Biophys Res Commun 2000 270 2 495 503 10.1006/bbrc.2000.2472 10753653 · DOI
- [41]Papadopoulos MC Verkman AS Aquaporin-4 and brain edema Pediatr Nephrol 2007 2 6 778 784 10.1007/s00467-006-0411-0 PMC6904420 17347837 · DOI
- [42]Chen JC Wang X Wellenius GA Serre ML Driscoll I Casanova R Ambient air pollution and neurotoxicity on brain structure: evidence from women’s health initiative memory study Ann Neurol 2015 78 3 466 476 10.1002/ana.24460 26075655 PMC4546504 · DOI
- [43]Jackson P Hougaard KS Vogel U Wu D Casavant L Williams A Exposure of pregnant mice to carbon black by intratracheal instillation: toxicogenomic effects in dams and offspring Mutat Res 2012 745 73 83 10.1016/j.mrgentox.2011.09.018 22001195 · DOI
- [44]Hermanto Y Takagi Y Ishii A Yoshida K Kikuchi T Funaki T Immunohistochemical analysis of Sox17 associated pathway in brain arteriovenous malformations World Neurosurg 2016 87 573 583 10.1016/j.wneu.2015.10.003 26463399 · DOI
- [45]Zhao Y Mao Y Zhou LF Zhang YL Immunohistochemical study on central nervous system cavernous hemangiomas Zhonghua Yi Xue Za Zhi 2003 83 7 544 547 12887740
- [46]Krum JM Mani N Rosenstein JM Roles of the endogenous VEGF receptors flt-1 and flk-1 in astroglial and vascular remodeling after brain injury Exp Neurol 2008 212 1 108 117 10.1016/j.expneurol.2008.03.019 18482723 PMC2478519 · DOI
- [47]Schwarz DA Barry G Mackay KB Manu F Naeve GS Vana AM Identification of differentially expressed genes induced by transient ischemic stroke Brain Res Mol Brain Res 2002 101 1–2 12 22 10.1016/S0169-328X(02)00135-3 12007827 · DOI · Paper page
- [48]Stapleton PA Minarchick VC Yi J Engels K McBride CR Nurkiewicz TR Maternal engineered nanomaterial exposure and fetal microvascular function: does the barker hypothesis apply? Am J Obstet Gynecol 2013 209 3 227 10.1016/j.ajog.2013.04.036 23643573 PMC3757100 · DOI
- [49]Kong H Fan Y Xie J Ding J Sha L Shi X AQP4 knockout impairs proliferation, migration and neuronal differentiation of adult neural stem cells J Cell Sci 2008 121 Pt 24 4029 4036 10.1242/jcs.035758 19033383 · DOI
- [50]Zhao Z Nelson AR Betsholtz C Zlokovic BV Establishment and dysfunction of the blood–brain barrier Cell 2015 163 5 1064 1078 10.1016/j.cell.2015.10.067 26590417 PMC4655822 · DOI · Paper page
- [51]Whiteus C Freitas C Grutzendler J Perturbed neural activity disrupts cerebral angiogenesis during a postnatal critical period Nature 2014 505 7483 407 411 10.1038/nature12821 24305053 PMC3947100 · DOI
- [53]Williams K Alvarez X Lackner AA Central nervous system perivascular cells are immunoregulatory cells that connect the CNS with the peripheral immune system Glia 2001 36 2 156 164 10.1002/glia.1105 11596124 · DOI
- [54]Fleischer NL Merialdi M van Donkelaar A Vadillo-Ortega F Martin RV Betran AP Outdoor air pollution, preterm birth, and low birth weight: analysis of the world health organization global survey on maternal and perinatal health Environ Health Perspect 2014 122 4 425 430 24508912 PMC3984219
- [55]Xu G Umezawa M Takeda K Early development origins of adult disease caused by malnutrition and environmental chemical substances J Health Sci 2009 55 1 11 19 10.1248/jhs.55.11 · DOI
- [56]Barrett JR Prenatal Air pollution and reduced birth weight: decline in placental mitochondria as a potential mechanism Environ Health Perspect 2016 124 5 A98 10.1289/ehp.124-A98 27135399 PMC4858406 · DOI
- [57]Dadvand P Parker J Bell ML Bonzini M Brauer M Darrow LA Maternal exposure to particulate air pollution and term birth weight: a multi-country evaluation of effect and heterogeneity Environ Health Perspect 2013 21 3 267 373 PMC3621183 23384584
- [58]Fisher SE Duffy L Atkinson M Selective fetal malnutrition: effect of acute and chronic ethanol exposure upon rat placental Na,K-ATPase activity Alcohol Clin Exp Res 1986 10 2 150 153 10.1111/j.1530-0277.1986.tb05062.x 3013042 · DOI
- [59]Valentino SA Tarrade A Aioun J Mourier E Richard C Dahirel M Maternal exposure to diluted diesel engine exhaust alters placental function and induces intergenerational effects in rabbits Part Fibre Toxicol 2016 13 1 39 10.1186/s12989-016-0151-7 27460165 PMC4962477 · DOI · Paper page
- [60]Mao J Zhang X Sieli PT Falduto MT Torres KE Rosenfeld CS Contrasting effects of different maternal diets on sexually dimorphic gene expression in the murine placenta Proc Natl Acad Sci U S A 2010 107 12 5557 5562 10.1073/pnas.1000440107 20212133 PMC2851754 · DOI · Paper page
- [61]O’Connell BA Moritz KM Roberts CT Walker DW Dickinson H The placental response to excess maternal glucocorticoid exposure differs between the male and female conceptus in spiny mice Biol Reprod 2011 85 5 1040 1047 10.1095/biolreprod.111.093369 21795670 · DOI
- [62]Choi HS Ashitate Y Lee JH Kim SH Matsui A Insin N Rapid translocation of nanoparticles from the lung airspaces to the body Nat Biotechnol 2010 28 12 1300 1303 10.1038/nbt.1696 21057497 PMC3058321 · DOI
- [63]Kreyling WG Semmler M Erbe F Mayer P Takenaka S Schulz H Translocation of ultrafine insoluble iridium particles from lung epithelium to extrapulmonary organs is size dependent but very low J Toxicol Environ Health A 2002 65 20 1513 1530 10.1080/00984100290071649 12396866 · DOI
- [64]Oberdörster G Sharp Z Atudorei V Elder A Gelein R Lunts A Extrapulmonary translocation of ultrafine carbon particles following whole-body inhalation exposure of rats J Toxicol Environ Health A 2002 65 20 1531 1543 10.1080/00984100290071658 12396867 · DOI
- [65]Wick P Malek A Manser P Meili D Maeder-Althaus X Diener L Barrier capacity of human placenta for nanosized materials Environ Health Perspect 2010 118 3 432 436 10.1289/ehp.0901200 20064770 PMC2854775 · DOI
- [66]Yamashita K Yoshioka Y Higashisaka K Mimura K Morishita Y Nozaki M Silica and titanium dioxide nanoparticles cause pregnancy complications in mice Nat Nanotechnol 2011 6 5 321 328 10.1038/nnano.2011.41 21460826 · DOI
- [67]Takeda K Suzuki K Ishihara A Kubo-Irie M Fujimoto R Masako T Nanoparticles transferred from pregnant mice to their offspring can damage the genital and cranial nerve systems J Health Sci 2009 55 1 95 102 10.1248/jhs.55.95 · DOI
- [69]Zhang R Dai Y Zhang X Niu Y Meng T Li Y Reduced pulmonary function and increased pro-inflammatory cytokines in nanoscale carbon black-exposed workers Part Fibre Toxicol 2014 11 73 10.1186/s12989-014-0073-1 25497989 PMC4318129 · DOI
Cited by
Sorted by citations
Johnson, N. M., Hoffmann, A. R., Behlen, J. C., Lau, C., Pendleton, D., Harvey, N., Shore, R., Li, Y., Chen, J., Tian, Y., et al. (2021) · Environmental Health and Preventive Medicine · doi:10.1186/s12199-021-00995-5 · Cited by 339 · see citing works
Nanoparticles toxicity: An overview of its mechanism and plausible mitigation strategies
Sharma, N., Kurmi, B. D., Singh, D., Mehan, S., Khanna, K., Karwasra, R., Kumar, S., Chaudhary, A., Jakhmola, V., Sharma, A., et al. (2024) · Journal of Drug Targeting · doi:10.1080/1061186x.2024.2316785 · Cited by 58 · see citing works
- Authors
- Onoda, A., Takeda, K., & Umezawa, M.
- Affiliations
- Tokyo University of Science (JP)
- Corresponding author
- Onoda, Atsuto
- Venue
- Particle and Fibre Toxicology
- Published
- 2017-02-02
- Volume
- 14
- Issue
- 1
- Pages
- 4-4
- ISSN
- 1743-8977 (ISSN-L)
- PMC
- PMC5289048
- OpenAlex
- W2585902254
- Cited by
- 77
- References
- 5
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 5 · 2023: 8 · 2022: 9 · 2021: 9 · 2020: 11 · 2019: 11 · 2018: 9 · 2017: 6 · 2016: 1
- FWCI
- 4.58
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Particle and Fibre Toxicology (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- Ministry of Education, Culture, Sports, Science, and Technology (S1101015)
- Japan Society for the Promotion of Science (15J05718)
- Topics
- Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
- Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
- Keywords
- carbon black nanoparticles, developmental neurotoxicity, reactive astrogliosis, astrocyte activation, glial fibrillary acidic protein, aquaporin-4, cerebral cortex, placenta, dose-response relationship, biomarkers, neurodegenerative disease risk, intranasal exposure
- MeSH terms
- Animals, Astrocytes, Body Weight, Cerebral Cortex, Female, Glial Fibrillary Acidic Protein, Litter Size, Male, Mice, Inbred ICR, Pregnancy, Maternal Exposure, Gene Expression Profiling, Mice, Aquaporin 4, Soot, Nanoparticles, Real-Time Polymerase Chain Reaction
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review