ArticleReports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
Biodegradable seeds of holmium don't change neurological function after implant in brain of rats.
Article in Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 7 citations in OpenAlex.
- Holmium-Containing Bioactive Glasses Dispersed in Poloxamer 407 Hydrogel as a Theragenerative Composite for Bone Cancer Treatment.Materials (Basel, Switzerland) · 2021Article
- The various therapeutic applications of the medical isotope holmium-166: a narrative review.EJNMMI radiopharmacy and chemistry · 2019Review
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Authors and funding
9 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
aimTo evaluate the surgical procedure and parenchymal abnormalities related to implantation of ceramic seeds with holmium-165 in rats' brain.
backgroundAn effective method of cancer treatment is brachytherapy in which radioactive seeds are implanted in the tumor, generating a high local dose of ionizing radiation that can eliminate tumor cells while protecting the surrounding healthy tissue. Biodegradable Ho METHODS AND MATERIALS: The experiments in this study were approved by the Ethics Committee on Animal Use at the Federal University of Ouro Preto, protocol number 2012/034. Twenty-one adult Fischer rats were divided into Naive Group, Sham Group and Group for seed implants (ISH). Surgical procedures for implantation of biodegradable seeds were done and 30 days after the implant radiographic examination and biopsy of the brain were performed. Neurological assays were also accomplished to exclude any injury resulting from either surgery or implantation of the seeds.
resultsRadiographic examination confirmed the location of the seeds in the brain. Neurological assays showed animals with regular spontaneous activity. The histological analysis showed an increase of inflammatory cells in the brain of the ISH group. Electron microscopy evidenced cytoplasmic organelles to be unchanged. Biochemical analyzes indicate there was neither oxidative stress nor oxidative damage in the ISH brain. CAT activity showed no difference between the groups as well as lipid peroxidation measured by TBARS.
conclusionsThe analysis of the data pointed out that the performed procedure is safe as no animal showed alterations of the neurological parameters and the seeds did not promote histological architectural changes in the brain tissue.
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