Araştırma Makalesi

Proconvulsant effect of bisphenol A in penicillin induced epileptiform activity

Cilt: 41 Sayı: 2 30 Haziran 2019
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Proconvulsant effect of bisphenol A in penicillin induced epileptiform activity

Abstract

Objective: Epilepsy is a neurological disease characterized by seizures that can affect all age groups. Experimental epilepsy models have been used in order to prevent and treat epileptic seizures. Bisphenol A (BPA) is found in the plastics that are used in our daily lives, and causes harmful effects on the central nervous system. In this study, we aimed to investigate the effect of BPA in penicillin-induced epileptiform activity.

Method: Male Wistar rats weighing 205 ± 220 grams were separated into 4 groups: Control (n=7), 125 μg/kg BPA (n=7), 250 μg/kg BPA (n=7) and 500 μg/kg BPA (n=7). Rats were anesthetized with urethane, and were fixed to a stereotaxic device. With the stereotaxic guidance, an electrode was placed over the left somotomotor cortex and it connected to the recorder. 500 IU penicillin G was administered intracortically for induction of epileptiform activity. After 30 minutes from penicillin injection, the doses of BPA or olive oil were administered intraperitoneally and electrocorticography recording continued for 180 minutes after drug injection.      

Results: BPA, at a dose of 125 μg/kg, did not significantly change either the means of spike frequency or amplitude when compared to the control group. BPA, at the doses of 250 and 500 μg/kg, showed proconvulsant activity by increasing the mean spike frequency in the 50 and 40 minutes (respectively) until the end of the experiment without changing the amplitude.

Conclusions: The results of the present study provide electrophysiological evidence that BPA increase the epileptiform activity. Therefore, we suggest that epilepsy patients should avoid exposure to BPA.

Keywords

Kaynakça

  1. Dichter MA. The epilepsies and convulsive disorders.. In: Isselbacher KJ (Ed). Harrison's Principles of Internal Medicine. New York: McGraw-Hill, 1994; pp 2223-33.
  2. Biziere K, Chambon JP. Animal models of epilepsy and experimental seizures. Rev Neurol 1987; 143: 329-40.
  3. Sagratella S, Niglio T, Scotti de Carolis A. An investigation on the mechanism of anticonvulsant action of ketamine and phencyclidine on convulsions due to cortical application of penicillin in rabbits. Pharmacol Res Commun 1985; 17: 773-86
  4. Hill RG, Simmonds MA, Straughan DW. Antagonism of gamma-aminobutyric acid and glycine by convulsants in the cuneate nucleus of cat. Br J Pharmacol 1976; 56(1): 9-19.
  5. Vandenberg LN, Maffini MV, Sonnenschein C, et al. Bisphenol-A and the great divide: a review of controversies in the field of endocrine disruption. Endocr Rev 2009; 30: 75-95.
  6. Kang JH, Kondo F, Katayama Y. Human exposure to bisphenol A. Toxicology. 2006; 226: 79-89.
  7. Wilson NK, Chuang JC, Morgan MK, et al. An observational study of the potential exposures of preschool children to pentachlorophenol, bisphenol-A, and nonylphenol at home and daycare. Environ Res 2007; 103: 9-20.
  8. Ratajczak-Wrona W, Nowak K, Garley M, Tynecka M and Jablonska E. Sex-specific differences in the regulation of inducible nitric oxide synthase by bisphenol A in neutrophils. Human and Experimental Toxicology 2019; 38(2): 239–246.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Sağlık Kurumları Yönetimi

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

30 Haziran 2019

Gönderilme Tarihi

22 Şubat 2019

Kabul Tarihi

7 Mayıs 2019

Yayımlandığı Sayı

Yıl 2019 Cilt: 41 Sayı: 2

Kaynak Göster

AMA
1.Arslan G, Ağar E. Proconvulsant effect of bisphenol A in penicillin induced epileptiform activity. CMJ. 2019;41(2):244-249. doi:10.7197/223.vi.531144