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Article
Hepatic Proteomic Assessment of Oral Ingestion of Titanium Dioxide Nano Fiber (TDNF) in Sprague Dawley Rats
Journal of Environmental Science and Health, Part A
  • Worlanyo E. Gato, Georgia Southern Univeristy
  • Ji Wu, Georgia Southern University
  • Isaac Appiah, Georgia Southern University
  • Olivia Smith, Otterbein University
  • Haresh Rochani, Georgia Southern University, Jiann-Ping Hsu College of Public Health
Document Type
Article
Publication Date
1-9-2023
DOI
10.1080/10934529.2022.2159733
Disciplines
Abstract

Titanium dioxide nanofibers (TDNF) have been widely employed in pigments, sunscreens, paints, ointments, toothpaste and photocatalytic splitting of water. However, their potential toxicity has not been thoroughly examined. The goal of the present study is to examine hepatic effects associated with the ingestion of TDNF. TDNF was fabricated via electrospinning method and characterized. Six to seven weeks old male Sprague Dawley rats ingested (oral gavage) a total of 0 ppm, 40, 60 ppm TDNF for two weeks. After sacrifice, the liver was assessed for cellular effects using proteomic approach. The fibers diameter ranged from 0.18 − 0.29 μm, forming clusters and majority of the fibers were in the rutile phase. Proteomics assessment revealed more that more than 400 hundred proteins in the liver may be affected. These proteins are involved in such processes as catalysis of fatty acids by CoA, homocysteine metabolism, beta oxidation and the condensation of carbamoyl phosphate in the urea cycle among others. Further analysis of the protein associations showed that 325 biological processes, 140 molecular functions and 70 cellular components appear to be affected from the ingestion of TNDF. Quantitative analysis of specific mRNA transcripts indicated CMBL, GSTM1 and SDS were differentially expressed.

Comments

Georgia Southern University faculty member, Worlanyo E. Gato, Ji Wu, Isaac Appiah, and Haresh Rochani co-authored Hepatic Proteomic Assessment of Oral Ingestion of Titanium Dioxide Nano Fiber (TDNF) in Sprague Dawley Rats.

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Citation Information
Worlanyo E. Gato, Ji Wu, Isaac Appiah, Olivia Smith, et al.. "Hepatic Proteomic Assessment of Oral Ingestion of Titanium Dioxide Nano Fiber (TDNF) in Sprague Dawley Rats" Journal of Environmental Science and Health, Part A Vol. 57 Iss. 13-14 (2023) p. 1116 - 1123
Available at: http://works.bepress.com/hareshrochani/165/