Toxicity of 4-methylimidazole on isolated brain mitochondria: using both<i>in vivo</i>and<i>in vitro</i>methods

Mehri, Freshteh; Faizi, Mehrdad; Salimi, Ahmad; Seydi, Enayatollah

doi:10.1080/02772248.2015.1058054

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…Similar neurological dysfunctions were noticed in mice and rat fed with 4-MEI containing diet 10 , 11 . 4-MEI induced neurotoxicity was mediated by impairment of electron transfer chain at complex II in mitochondria and elevated oxidative stress 12 . A two-year study at high dose of 4-MEI showed the development of alveolar/bronchiolar adenoma and carcinoma in both male and female mice, while increased incidence of leukaemia was observed only in female rats 10 , 11 .…”

Section: Introductionmentioning

confidence: 98%

Chronic intake of 4-Methylimidazole induces Hyperinsulinemia and Hypoglycaemia via Pancreatic Beta Cell Hyperplasia and Glucose Dyshomeostasis

Balakrishnan

Velmurugan

Freddy³

et al. 2018

Sci Rep

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Caramel colours are the preferential food colouring agent globally, reaches wide age groups through eatables. Colas, a sweetened carbonated drink are most common caramel coloured beverage and its consumption is linked with diabetes, obesity, pancreatic cancer and other endocrine disorders. A major by-product produced during caramelization is 4-methylimidazole (4-MEI) that is detected in noteworthy concentrations in colas and other beverages. Previous studies revealed the neurotoxic and carcinogenic potential of 4-MEI in animals at higher doses but the effect of 4-MEI at theoretical maximum daily intake dose on glucose homeostasis is unexplored. Here, mice treated with 4-MEI (32 µg/kg bodyweight/day) for seven weeks exhibited severe hypoglycaemia and hyperinsulinemia mediated by hyperplasia of pancreatic beta cells and induces metabolic alterations. On combinatorial treatment, 4-MEI suppressed the glucogenic potential of non-artificial sweeteners and promotes lipogenesis. Furthermore, increased levels of C-peptide, LDL-cholesterol and triglycerides were observed in the humans with regular intake of 4-MEI containing beverages. In summary, 4-MEI induced pancreatic beta cell hyperplasia and leads to disruption of glucose and lipid homeostasis. This study suggests the need for further assessment and reconsideration of the wide usage of 4-MEI containing caramels as food additives.

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Section: Introductionmentioning

confidence: 98%