Effect of Exposure to Low-Level Toluene on Learning and Memory in Mice

Authors

  • Pichai Kantachai College of Research Methodology and Cognitive Science, Burapha University
  • Sirinya Laten College of Research Methodology and Cognitive Science, Burapha University
  • Narakorn Sareelae Thunyarak Udonthani Hospital
  • Kanlaya Munluan Faculty of Nursing Western University
  • Wittaya Byagghantara College of Research Methodology and Cognitive Science, Burapha University
  • Kanit Sripankaew Faculty of Nursing Rattana Bundit University, Prathumthani Campus.

Keywords:

Toluene Exposure; Learning and Memory; Morris Water Maze Test

Abstract

Background and Objective: Focusing on the study of the effects of exposure toluene on brain functions related to learning and memory. To analyze the level of exposure toluene that affect neurological behavior.

Methods:  Experimental mice were exposed to different levels of toluene 5 days per week for 4 weeks continuously. The behavior and duration of the swimming mice in the zone that used to have an underwater platform were testing prior and after exposure to toluene by the Morris Water Maze Test. The statistical differences were analyzed by the Paired sample t-test, One-way ANOVA, and Repeated- Measures ANOVA

Result: Experimental mice that exposed to toluene concentration of 50, 100 and 150 ppm.  There was a statistically significant difference in learning with control mice at the level of 0.01. The mean swimming duration of the post-control mice was statistically significant at the level of 0.01. Three groups of experimental mice showed no significant difference in the meantime. When analyzing the differences between the groups, it was found that the mean duration of the control and experimental group mice. After exposed to toluene with different tendencies (p <0.01)

Conclusion: Continuous exposure to low concentrations of toluene affects learning and memory in experimental mice. Must be studied clearly in humans. In order to see the health effects of those who need to work And will lead to the determination of appropriate preventive measures.

 

References

1. รชฏ เลียงจันทร์. อุตสาหกรรมปิโตรเคมี แนวโน้มธุรกิจ/อุตสาหกรรม ปี 2560-62. [Cited Agust 14, 2019]. Available from: https://www.krungsri.com/bank/getmedia/2abd4c15-e021-4bc8-9306-c89b5a2c6330/IO_Motorcycle_2017_TH.aspx
2. Nayeli Paez-Martinez , Zoraida Flores-Serrano, Leonardo Ortiz-Lopez, Gerardo Ramirez-Rodriguez.. Environmental enrichment increases doublecortin-associated new neurons and decreases neuronal death without modifying anxiety-like behavior in mice chronically exposed to toluene. Behav Brain Res2013; 256: 432-440.
3. Hoge J, Kesner RP. Role of CA3 and CA1 subregions of the dorsal hippocampus on temporal processing of objects. Neurobiol Learn Mem 2007; 88(2): 225-231.
4. von Euler M, Pham TM, Hillefors M, Bjelke B, Henriksson B, von Euler G. Inhalation of low concentrations of toluene induces persistent effects on a learning retention task, beam-walk performance, and cerebrocortical size in the rat. Exp Neurol 2000;163(1): 1-8.
5. Vorhees CV, Williams MT. Morris water maze: procedures for assessing spatial and related forms of learning and memory. Nat Protoc 2006;1(2):848-858.
6. Callan SP, Hannigan JH, Bowen SE. Prenatal toluene exposure impairs performance in the Morris Water Maze in adolescent rats. Neuroscience 2017; 342: 180-187.
7. Vokina VA. Subacute exposure to toluene changes the spatial memory in rats. GISAP. Medical Science, Pharmacology 2013; 1: 14-15.
8. Edmonds WA, Kennedy TD. An applied guide to research designs: Quantitative, qualitative, and mixed methods. Sage Publications; 2016 Apr 20. [Cited December 7, 2019]. Available from: https://dx.doi.org/10.4135/9781071802779
9. Beasley TE, Evansky PA, Gilbert ME, Bushnell PJ. Behavioral effects of subchronic inhalation of toluene in adult rats. Neurotoxicol Teratol 2010 ; 32: 611-619.
10. Alfaro-Rodríguez A, Bueno-Nava A, González-Piña R, Arch-Tirado E, Vargas-Sánchez J, Ávila-Luna A. Chronic exposure to toluene changes the sleep-wake pattern and brain monoamine content in rats. Acta Neurobiol Exp (Wars). 2011; 71(2): 183-192.
11. Boman A, Maibach HI. Influence of evaporation and solvent mixtures on the absorption of toluene and n-butanol in human skin in vitro. Ann Occup Hyg 2000; 44: 125-135.
12. Kaewkaen P. Effect of Carica papaya L. extract protect against oxidative stress in rat model of focal cerebral ischemia. Burapha Science Journal. 2019; 24(1): 92-106.
13. Chattraporn S, Pratchaya K. Behavioral Effect of carica papaya Linn. fruit juice in animal model of mild cognitive impairment mice. in Burapha University International Conference 2015. “Moving Forward to Prosperous and Sustainable Community”; July 10-12, 2015 Bangsaen Heritage Hotel Chonburi (423-429). Thailand. Burapha University. 2015.
14. ATSDR A. Agency for toxic substances and disease registry. Case Studies in environmental medicine. [Cited December 7, 2019]. http://www. atsdr. cdc. gov/HEC/CSEM/csem.html.

Published

2020-09-08

How to Cite

1.
Kantachai P, Laten S, Sareelae N, Munluan K, Byagghantara W, Sripankaew K. Effect of Exposure to Low-Level Toluene on Learning and Memory in Mice. SRIMEDJ [Internet]. 2020 Sep. 8 [cited 2024 Apr. 25];35(5):603-8. Available from: https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/246699

Issue

Section

Original Articles