Laboratoire de biologie, eau et environnement, Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre et de l'Univers, Département de Biologie, Université 8 Mai 1945 Guelma, BP 401, Guelma 24000, Algeria.
Département de Biologie, Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre et de l'univers, Université 8 Mai 1945 Guelma, BP 401, Guelma 24000, Algeria.
Toxicol In Vitro. 2021 Jun;73:105145. doi: 10.1016/j.tiv.2021.105145. Epub 2021 Mar 15.
Processed meat products are presumptive sources of mutagens and genotoxins for consumers. Several epidemiological studies have reported that these products' high intakes have a positive link with cancer incidence. In Algeria, industrially processed meat products are widely consumed. However, there are no earlier studies involving their genotoxic activity. For this end, the current study aimed at evaluating the mutagenicity and the genotoxicity of some representative industrially processed meat products sold in popular supermarkets. All samples were extracted by established method, using both polar and non-polar solvents. The meat extracts mutagenicity was assessed by Ames test, using four strains of Salmonella typhimurium in the presence and absence of metabolic activation, and subsequently by treat and wash assay for extracts showing biologically significant results. The genotoxicity was determined in TK6 human lymphoblastoid cells using the in vitro micronucleus assay in micromethod. The results showed that all extracts analyzed induce no mutagenic activity. However, one of these extracts induced a biologically significant increase in the number of micronucleated cells. Our findings indicate the importance of the genetic damage detection for taking measures to suppress or reduce the exposure to harmful contaminants and encourage further research investigating genotoxic effects of industrially processed meat worldwide.
加工肉制品被认为是消费者体内诱变剂和遗传毒素的潜在来源。一些流行病学研究表明,这些产品的大量摄入与癌症发病率呈正相关。在阿尔及利亚,工业化加工的肉类产品广泛消费。然而,目前还没有涉及这些产品遗传毒性的早期研究。为此,本研究旨在评估一些在受欢迎的超市出售的代表性工业化加工肉类产品的致突变性和遗传毒性。所有样本均采用已建立的方法提取,使用极性和非极性溶剂。采用鼠伤寒沙门氏菌四种菌株,在有或没有代谢激活的情况下,通过 Ames 试验评估肉提取物的致突变性,随后对显示生物学意义结果的提取物进行处理和洗涤试验。采用微核试验的微量法在 TK6 人淋巴母细胞中测定遗传毒性。结果表明,所有分析的提取物均不具有致突变活性。然而,其中一种提取物导致微核细胞数量出现有生物学意义的增加。我们的研究结果表明,对遗传损伤的检测非常重要,这有助于采取措施抑制或减少对有害污染物的暴露,并鼓励进一步研究全球工业化加工肉类的遗传毒性作用。