Fumonizin B1: neurotoksični mikotoksin

Other - Other

• Title (english): Fumonisin B1: A Neurotoxic Mycotoxin
• Author: Ana-Marija Domijan
• Author's institution: University of Zagreb; Faculty of Pharmacy and Biochemistry; (Department of pharmaceutical botany)
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Pharmacy; Pharmacy

Abstract (croatian)

Fumonizin B1 (FB1) jest mikotoksin koji proizvode plijesni roda Fusarium spp. koje nalazimo kao onečišćivače žitarica, ponajprije kukuruza diljem svijeta. Od svih do sada izoliranih fumonizina FB1 se najčešće može naći na kukuruzu, a i najtoksičniji je fumonizin. FB1 ima različite toksične učinke ovisno o životinjskoj vrsti. Tako u konja izaziva leukoencefalomalaciju kopitara (ELEM), u svinja plućni edem, a za eksperimentalne je glodavce nefrotoksičan i hepatotoksičan. U ljudi je izloženost FB1 povezana s razvojem primarnog karcinoma jetre i karcinoma jednjaka koji se učestalo pojavljuju u regijama svijeta (kao Transkeiska regija u Južnoj Africi) u kojima ljudi rabe kukuruz u dnevnoj prehrani. I pojavljivanje defekta neuralne cijevi u nekim je zemljama Srednje Amerike (kao Meksiko i Honduras) povezano s učestalom konzumacijom kukuruzne hrane kontaminirane s FB1. Ipak se sa sigurnošću ne može povezati razvoj navedenih bolesti u ljudi s izloženosti FB1. Međunarodna agencija za istraživanje raka (IARC) klasificirala je FB1 kao mogući karcinogen za ljude (grupa 2B). Kako je FB1 uzročnik ELEM-a, poremećaja središnjega živčanog sustava (SŽS) u konja, to upućuje na mogućnost da FB1 uzrokuje promjene u mozgu. Nekoliko studija na pokusnim životinjama i na staničnim kulturama stanica podrijetlom iz SŽS-a potvrdilo je da je FB1 neurotoksičan iako mehanizam neurotoksičnosti FB1, pa tako i mehanizam njegove toksičnosti, još nije razjašnjen. Stoga je cilj ovoga rada dati pregled dostupne literature o neurotoksičnosti i mehanizmu neurotoksičnosti FB1 kako bi se omogućilo bolje planiranje budućih istraživanja.

Abstract (english)

Fumonisin B1 (FB1) is a mycotoxin produced by Fusarium spp. moulds that contaminate crop, predominantly maize, all around the world. More than 15 types of fumonisins have been indentified so far, but FB1 is the most abundant and toxicologically the most significant one. FB1 has a wide range of toxic effects, depending on animal species. In horses FB1 causes equine leukoencephalomalacia (ELEM), in pigs pulmonary oedema and in experimental rodents nephrotoxicity and hepatotoxicity. In humans exposure to FB1 is linked with higher incidence of primary liver cancer and oesophageal cancer, which are frequent in certain regions of the world (such as Transkei region in South Africa) where maize is staple food. The occurrence of neural tube defect in children in some countries of Central America (such as Mexico and Honduras) is connected with the consumption of FB1-contaminated maize-based food. However, possible involvement of FB1 in the development of human diseases is not clear. Nevertheless, the International Agency for Research on Cancer (IARC) has classified FB1 as a possible carcinogen to humans (group 2B). FB1 is a causative agent of ELEM, a brain disorder in equines, indicating that brain is a target organ of FB1 toxicity. Several studies on experimental animals or on cell cultures of neural origin have established that FB1 has a neurodegenerative potential, although the mechanism of its neurotoxicity is still vague. The aim of this article is to give an overview of available literature on FB1 neurotoxicity and involved mechanisms, and to offer a new perspective for future studies.

• Keywords (croatian): defekt neuralne cijevi; leukoencefalomalacija kopitara; mitohondrij; neurotransmiteri; oksidativni stres; sfingoidne baze, sfingolipidi
• Keywords (english): equine leukoencephalomalacia; neural tube defect; neurotransmitters; sphingolipids; sphingoid bases; oxidative stress; mitochondria
• Language: croatian
• Language: english
• Publication type: Other - Other
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Arhiv za higijenu rada i toksikologiju
• Numbering: vol. 63, no. 4, p. 544
• p-ISSN: 0004-1254
• e-ISSN: 1848-6312
• DOI: https://doi.org/10.2478/10004-1254-63-2012-2239
• URN:NBN: urn:nbn:hr:163:016681
• Publication: 2012
• Document URL: https://hrcak.srce.hr/93669
• Type of resource: Text
• Access conditions: Open access
• Created on: 2020-05-18 14:49:04