Cited by 78Nanoparticles: synthesis and applicationsIron Metabolism and DisordersImmunotoxicology and immune responses

The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.

Biodistribution, Clearance And Morphological Alterations Of Intravenously Administered Iron Oxide Nanoparticles In Male Wistar Rats

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Gaharwar, Usha Singh, Meena, Ramovatar, Rajamani, Paulraj·2019·International Journal of Nanomedicine

Abstract

INTRODUCTION: Nanoparticles are used worldwide because of their unique properties, with large-scale application in various fields, such as medicine, cosmetics and industries. In view of their widespread use, the potential adverse effects of nanoparticles have become a significant cause for concern, in terms of not only human health and safety but also the environment. The present investigation focused on establishing the bioaccumulation patterns and ultrastructural changes induced by retained iron oxide nanoparticles (IONPs) in various target organs of rats. METHODS: Twenty-four male Wistar rats were randomly divided into four groups. Experimental animals were intravenously administered different doses of IONPs (7.5 mg/kg, 15 mg/kg and 30 mg/kg) once in a week for 4 weeks. Urine and feces samples were collected on a daily basis to assess nanoparticle clearance and analyzed via atomic absorption spectroscopy (AAS). At the end of the experiment, rats were euthanized and different organs, including spleen, liver, kidney, lung, heart, testis and brain, were dissected. Bioaccumulation of iron in organs and ultrastructural changes induced by IONPs were determined. RESULTS: The maximal concentration of iron was detected in spleen and minimal concentration in the brain. The level of iron accumulation in organs was as follows: spleen>blood>liver>kidney>lung>heart>testis>brain. The excretion profile in urine revealed maximum excretion on the day following administration that was maintained until day 28, whereas the iron content in feces remained high during the first three days after injection. A similar pattern was observed throughout the duration of the experiment. Ultrastructural alterations were detected in spleen, kidney, lung, heart, testis, brain and liver, indicative of cellular damage induced by accumulating nanoparticles in these organs. CONCLUSION: Intravenous administration of IONPs results in ultrastructural changes and dose-dependent bioaccumulation in different organs of rats.

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Authors
Gaharwar, U. S., Meena, R., & Rajamani, P.
Affiliations
Jawaharlal Nehru University (IN)
Corresponding author
  • Gaharwar, Usha Singh
  • Meena, Ramovatar
  • Rajamani, Paulraj
Venue
International Journal of Nanomedicine
Published
2019-12
Volume
Volume 14
Pages
9677-9692
ISSN
  • 1176-9114 (ISSN-L)
  • 1178-2013
OpenAlex
W2993868899
Cited by
75
References
57
Citations by year
2026: 5 · 2025: 14 · 2024: 7 · 2023: 10 · 2022: 15 · 2021: 14 · 2020: 10
FWCI
3.52
Type
journal article
Language
en
Open access
Locations
  • International Journal of Nanomedicine (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Jawaharlal Nehru University
  • Advanced Instrumentation Research Facility
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Nanoparticles: synthesis and applications
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
Keywords
iron oxide nanoparticles, tissue distribution, nanoparticle clearance, bioaccumulation, ultrastructural changes, intravenous administration, dose-dependent toxicity, nanoparticle excretion, spleen, kidney, liver, lung, testis, brain, heart
MeSH terms
Animals, Brain, Ferric Compounds, Heart, HeLa Cells, Humans, Iron, Kidney, Liver, Lung, Male, Spleen, Testis, Tissue Distribution, Rats, Wistar, Metal Nanoparticles, Administration, Intravenous

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