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1.
Food Chem Toxicol ; 188: 114699, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38697496

RESUMO

The aim of this study was to assess Italian consumers' risk of cancer and burden of disease due to dietary exposure to acrylamide. Our model considered six age groups such as infants, toddlers, other children, adolescents, adults, and the elderly, and the consumption of 31 food items. Using a risk-assessment-based approach, we first characterized the risk of neoplastic effects using the margin of exposure method. Then the risk of kidney, endometrial, breast, ovarian cancer, and total cancer was estimated using adjusted cancer slope factors while the burden of disease was quantified using Disability-adjusted Life Years (DALYs). The highest risk for females was related to breast cancer while the lowest was for kidney cancer. We found a comparable risk of total cancer among Italian males and females, estimated at around 1.59 to 3.57 cases per 100,000 individuals annually with the burden ranging between 12.3 - 25.4 and 11.4 - 24.1 DALYs respectively. Our findings provide insights on the multifaceted impact of acrylamide on public health by offering detailed insights into age-specific exposure levels, diverse cancer risks, and the dietary burden of disease related to acrylamide. Targeted interventions and policies can be developed towards mitigating the health risks associated with acrylamide exposure.


Assuntos
Acrilamida , Exposição Dietética , Neoplasias , Humanos , Acrilamida/toxicidade , Acrilamida/análise , Itália/epidemiologia , Feminino , Masculino , Medição de Risco , Adolescente , Lactente , Pré-Escolar , Adulto , Idoso , Criança , Neoplasias/epidemiologia , Neoplasias/induzido quimicamente , Neoplasias/etiologia , Pessoa de Meia-Idade , Adulto Jovem , Contaminação de Alimentos/análise , Efeitos Psicossociais da Doença , Anos de Vida Ajustados por Deficiência
2.
Toxicology ; 504: 153800, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38604440

RESUMO

Acrylamide (ACR) is an endogenous food contaminant, high levels of ACR have been detected in a large number of foods, causing widespread concern. Since different organism states respond differently to the toxic effects of pollutants, this study establishes an insulin-resistant BRL cell model to explore the differential susceptibility of BRL cells with/without insulin resistance in response to acrylamide-exposure (0.0002, 0.02, or 1 mM) toxicity effects and its mechanism. The results showed that ACR exposure decreased glucose uptake and increased intracellular lipid levels by promoting the expression of fatty acid synthesis, transport, and gluconeogenesis genes and inhibiting the expression of fatty acid metabolism genes, thereby further exacerbating disorders of gluconeogenesis and lipid metabolism in insulin-resistant BRL cells. Simultaneously, its exposure also exacerbated BRL cells with/without insulin-resistant damage. Meanwhile, insulin resistance significantly raised susceptibility to BRL cell response to ACR-induced toxicity. Furthermore, ACR exposure further activated the endoplasmic reticulum stress (ERS) signaling pathway (promoting phosphorylation of PERK, eIF-2α, and IRE-1α) and the apoptosis signaling pathway (activating Caspase-3 and increasing the Bax/Bcl-2 ratio) in BRL cells with insulin-resistant, which were also attenuated after ROS scavenging or ERS signaling pathway blockade. Overall results suggested that ACR evokes a severer toxicity effect on BRL cells with insulin resistance through the overactivation of the ERS signaling pathway.


Assuntos
Acrilamida , Estresse do Retículo Endoplasmático , Resistência à Insulina , Transdução de Sinais , Animais , Ratos , Acrilamida/toxicidade , Apoptose/efeitos dos fármacos , Linhagem Celular , Estresse do Retículo Endoplasmático/efeitos dos fármacos , Glucose/metabolismo , Metabolismo dos Lipídeos/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo , Transdução de Sinais/efeitos dos fármacos
3.
Redox Rep ; 29(1): 2341537, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38629506

RESUMO

BACKGROUND: Acrylamide is a toxic substance formed in some foods that require high-temperature cooking processes and has been implicated as a gonadotoxic agent. Zinc, on the other hand, is a known antioxidant with fertility-enhancing properties. Hence, this study was designed to explore the possible ameliorative effect of zinc in acrylamide-induced gonadotoxicity. METHODS: Twenty-four male Wistar rats were randomized into control, acrylamide (10 mg/kg of acrylamide), acrylamide + 1 mg/kg of zinc, and acrylamide + 3 mg/kg of zinc. The administration was via the oral route and lasted for 56 days. RESULTS: Zinc treatment ameliorated acrylamide-impaired sperm quality, normal testicular histoarchitecture, and hormonal balance, which was accompanied by increased testicular malondialdehyde and interleukin-1ß and decreased testicular superoxide dismutase (SOD) and catalase (CAT). Furthermore, zinc prevented acrylamide-induced downregulation of testicular nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), and B-cell lymphoma 2 (BCl2) expression and upregulation of testicular nuclear factor kappa B (NF-κB) and bcl-2-like protein 4 (bax) expression. CONCLUSION: In conclusion, zinc may protect against acrylamide-induced testicular toxicity, mediated by its antioxidant, anti-inflammatory, and antiapoptotic effects.


Assuntos
Antioxidantes , Apoptose , Estresse Oxidativo , Transdução de Sinais , Zinco , Animais , Masculino , Ratos , Acrilamida/toxicidade , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Apoptose/efeitos dos fármacos , Proteína X Associada a bcl-2/metabolismo , Proteína X Associada a bcl-2/farmacologia , Heme Oxigenase-1/metabolismo , Heme Oxigenase-1/farmacologia , Fator 2 Relacionado a NF-E2/metabolismo , NF-kappa B/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/farmacologia , Ratos Wistar , Sêmen/metabolismo , Transdução de Sinais/efeitos dos fármacos , Zinco/farmacologia
4.
Nutrients ; 16(6)2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38542747

RESUMO

Acrylamide is a probable carcinogen. Its main sources are the diet and tobacco. The association between acrylamide intake from the diet and tobacco and prostate cancer (PCa) has not been previously evaluated. We aimed to evaluate the relationship between dietary acrylamide intake and exposure to acrylamide through cigarettes and PCa risk. A population-based case-control (CAPLIFE) study was conducted, including 428 incident PCa cases and 393 controls. Smoking and dietary information, with a validated food frequency questionnaire, was collected. We calculated the amount of acrylamide from both sources, and tertiles (Ts) were created. Multivariable logistic regression and restricted cubic spline models were applied to assess the association between exposure to acrylamide and PCa risk. The median was similar for acrylamide in both dietary and smoking acrylamide among PCa cases and controls. No association was observed between dietary acrylamide intake and overall PCa risk (adjusted ORT3vsT1 = 0.90 (95% CI 0.59, 1.37)). A risk trend was observed for acrylamide exposure from cigarette smoking (p-trend = 0.032), with the highest odds in those subjects with the high exposure to acrylamide through cigarettes (adjusted ORT3vsT1 = 1.67 (95% CI 0.92, 3.04)). The restricted cubic splines suggested a linear relationship. In conclusion, acrylamide from smoking could be positively associated with PCa risk, but no association was observed for dietary acrylamide.


Assuntos
Acrilamida , Neoplasias da Próstata , Masculino , Humanos , Acrilamida/toxicidade , Dieta/efeitos adversos , Neoplasias da Próstata/induzido quimicamente , Neoplasias da Próstata/epidemiologia , Ingestão de Alimentos , Fumar/efeitos adversos , Fumar/epidemiologia , Fatores de Risco
5.
Food Chem Toxicol ; 187: 114623, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38554842

RESUMO

Acrylamide (ACR) is a known neurotoxicant and developmental neurotoxicant. As a soft electrophile, ACR reacts with thiol groups in cysteine. One hypothesis of ACR induced neurotoxicity and developmental neurotoxicity (DNT) is conjugation with reduced glutathione (GSH) leading to GSH depletion, increased reactive oxygen species (ROS) production and further oxidative stress and cellular damage. In this regard, we have investigated the effect of ACR on neuronal differentiation, glutathione levels and ROS production in the human neuroblastoma SH-SY5Y cell model. After 9 days of differentiation and exposure, ACR significantly impaired area neurites per cell at non-cytotoxic concentrations (0.33 µM and 10 µM). Furthermore, 10 µM ACR dysregulated 9 mRNA markers important for neuronal development, 5 of them being associated with cytoskeleton organization and axonal guidance. At the non-cytotoxic concentrations that significantly attenuate neuronal differentiation, ACR did neither decrease the level of GSH or total glutathione levels, nor increased ROS production. In addition, the expression of 5 mRNA markers for cellular stress was assessed with no significant altered regulation after ACR exposure up to 320 µM. Thus, ACR-induced DNT is not due to GSH depletion and increased ROS production, neither at non-cytotoxic nor cytotoxic concentrations, in the SH-SH5Y model during differentiation.


Assuntos
Acrilamida , Neuroblastoma , Humanos , Espécies Reativas de Oxigênio/metabolismo , Acrilamida/toxicidade , Neuroblastoma/metabolismo , Estresse Oxidativo , Glutationa/metabolismo , RNA Mensageiro/metabolismo , Linhagem Celular Tumoral
6.
Toxicology ; 504: 153784, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38518838

RESUMO

Kidneys are one of the most important organs in the human body. In addition to filtering 200 liters of fluid every 24 hours, the kidney also regulates acid-base balance, maintains electrolyte balance, and removes waste and toxicants from the body. Nephrotoxicity is the term used to describe the deterioration of kidney function caused by the harmful effects of medications and various types of environmental toxicants. Exposure to environmental toxicants is an inevitable side effect in the world's increasing industrialization and even more prevalent in underdeveloped nations. Growing data over the past few years has illuminated the probable connection between environmental toxicants and nephrotoxicity. Phthalates, microplastics, acrylamide and bisphenol A are environmental toxicants of particular concern, which are known to have nephrotoxic effects. Such toxicants may accumulate in the kidneys of humans after being consumed, inhaled, or come into contact with the skin. They can enter cells through endocytosis and accumulate in the cytoplasm. Small-sized nephrotoxicants can cause a variety of ailments including inflammation with increased production of pro-inflammatory cytokines, oxidative stress, mitochondrial dysfunction, autophagy, and apoptosis. This study uncovers the potential for new insights concerning the relationship between various environmental toxicants and kidney health. The objectives of this review is to establish information gaps, assess and identify the toxicity mechanisms of different nephrotoxicants, identify innovative pharmacological therapies that demonstrate promising therapeutic benefits/ relevance, and discuss the predictions for the future based on the analysis of the literature.


Assuntos
Poluentes Ambientais , Nefropatias , Rim , Humanos , Poluentes Ambientais/toxicidade , Nefropatias/induzido quimicamente , Animais , Rim/efeitos dos fármacos , Rim/metabolismo , Rim/patologia , Rim/fisiopatologia , Ácidos Ftálicos/toxicidade , Exposição Ambiental/efeitos adversos , Compostos Benzidrílicos/toxicidade , Fenóis/toxicidade , Acrilamida/toxicidade , Microplásticos/toxicidade , Estresse Oxidativo/efeitos dos fármacos
7.
Food Funct ; 15(7): 3395-3410, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38465655

RESUMO

Consuming fried foods has been associated with an increased susceptibility to mental health disorders. Nevertheless, the impact of alpha-lipoic acid (α-LA, LA) on fried food-induced autism-like behavior remains unclear. This study aimed to explore how LA affects autism-related behavior and cognitive deficits caused by acrylamide in mice, a representative food hazard found in fried foods. This improvement was accomplished by enhanced synaptic plasticity, increased neurotrophin expression, elevated calcium-binding protein D28k, and restored serotonin. Additionally, LA substantially influenced the abundance of bacteria linked to autism and depression, simultaneously boosted short-chain fatty acid (SCFA) levels in fecal samples, and induced changes in serum amino acid concentrations. In summary, these findings suggested that exposure to acrylamide in adolescent mice could induce the development of social disorders in adulthood. LA showed promise as a nutritional intervention strategy to tackle emotional disorders during adolescence.


Assuntos
Transtorno Autístico , Ácido Tióctico , Camundongos , Animais , Ácido Tióctico/farmacologia , Transtorno Autístico/induzido quimicamente , Eixo Encéfalo-Intestino , Acrilamida/toxicidade , Dieta
8.
Toxins (Basel) ; 16(2)2024 02 06.
Artigo em Inglês | MEDLINE | ID: mdl-38393165

RESUMO

Thermal processes induce the formation of undesired toxic components, such as acrylamide (AA), which has been shown to induce brain toxicity in humans and classified as Group 2A by the International Agency of Research in Cancer (IARC), as well as some mycotoxins. AA and mycotoxins' toxicity is studied in several in vitro models, including the neuroblastoma cell line model SH-SY5Y cells. Both AA and mycotoxins occur together in the same food matrix cereal base (bread, pasta, potatoes, coffee roasting, etc.). Therefore, the goal of this review is to deepen the knowledge about the neurological effects that AA and mycotoxins can induce on the in vitro model SH-SY5Y and its mechanism of action (MoA) focusing on the experimental assays reported in publications of the last 10 years. The analysis of the latest publications shows that most of them are focused on cytotoxicity, apoptosis, and alteration in protein expression, while others are interested in oxidative stress, axonopathy, and the disruption of neurite outgrowth. While both AA and mycotoxins have been studied in SH-SY5Y cells separately, the mixture of them is starting to draw the interest of the scientific community. This highlights a new and interesting field to explore due to the findings reported in several publications that can be compared and the implications in human health that both could cause. In relation to the assays used, the most employed were the MTT, axonopathy, and qPCR assays. The concentration dose range studied was 0.1-10 mM for AA and 2 fM to 200 µM depending on the toxicity and time of exposure for mycotoxins. A healthy and varied diet allows the incorporation of a large family of bioactive compounds that can mitigate the toxic effects associated with contaminants present in food. Although this has been reported in some publications for mycotoxins, there is still a big gap for AA which evidences that more investigations are needed to better explore the risks for human health when exposed to AA and mycotoxins.


Assuntos
Micotoxinas , Neuroblastoma , Humanos , Acrilamida/toxicidade , Linhagem Celular Tumoral , Micotoxinas/toxicidade , Neurônios
9.
Food Chem Toxicol ; 185: 114499, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38309685

RESUMO

Food products simultaneously containing both food contaminants and emulsifiers are common in baked products, coffee and chocolate. Little is known regarding how food contaminants and emulsifiers interact and alter toxicity. Recent studies have shown that while emulsifiers themselves have little toxicity, they could cause changes in the gut microenvironment and lead to issues such as increased uptake of allergens. This study examined toxic effect of two common process contaminants acrylamide (AA) and benzo [a]pyrene (BAP) combined with food emulsifiers polyoxyethylene sorbitan monooleate (TW) or glycerol monostearate (G). In liver cell line HepG2 and gastrointestinal cell lines HIEC6 and Caco-2, toxicities of AA and BAP were increased by TW but not by G as indicated by decrease in IC50 values. Addition of TW also exacerbated gene expression changes caused by AA or BAP. Cellular uptake and cell membrane permeability were enhanced by TW but not by G, but tight junction proteins of Caco-2 monolayer was impacted by both emulsifiers. These results suggested that TW could increase toxicity of AA and BAP through increasing cell permeability thus chemical uptake and potentially through other interactions. The study is to draw the attention of regulators on the potential synergistic interaction of co-occurring chemicals in food.


Assuntos
Chocolate , Alimentos , Humanos , Células CACO-2 , Café , Transporte Biológico , Acrilamida/toxicidade , Benzo(a)pireno
10.
Food Chem Toxicol ; 185: 114502, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38346572

RESUMO

This study aimed to estimate the Malaysian adult population's current dietary exposure and margin of exposure (MOE) to the carcinogenic processing contaminant, acrylamide. A total of 448 samples from 11 types of processed foods were collected randomly throughout Malaysia in the year 2015 and 2016. Acrylamide was analysed in samples using Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) with a limit of detection (LOD) of 10 µg/kg and a limit of quantification (LOQ) of 25 µg/kg. The highest average level of acrylamide (772 ± 752 µg/kg) was found in potato crisps, followed by French fries (415 ± 914 µg/kg) and biscuits (245 ± 195 µg/kg). The total acrylamide exposure for the adult Malaysian was 0.229 and 1.77 µg/kg body weight per day for average and high consumers, respectively. The MOE were 741 and 1875 for the average consumer based on cancer and non-cancer effects of acrylamide, respectively. Meanwhile, for high consumers, the MOE is 96 for cancer and 243 for non-cancer effects. These findings indicate potential carcinogenic risks from acrylamide exposure among Malaysian adults, especially in Malay and other Bumiputra groups compared to Chinese, Indian, and other ethnic groups, while non-cancer effects appeared less concerning.


Assuntos
Acrilamida , Exposição Dietética , Exposição Dietética/análise , Cromatografia Líquida , Acrilamida/toxicidade , Acrilamida/análise , Espectrometria de Massas em Tandem , Alimentos , Carcinógenos/toxicidade , Carcinógenos/análise , Contaminação de Alimentos/análise
11.
J Occup Environ Hyg ; 21(3): 152-161, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38363758

RESUMO

Acrylamide (ACR) is an irritant that can cause damage to the eyes, skin, and nervous and reproductive systems. This study aims to illustrate a case of central nervous system and optic nerve damage from exposure to ACR. In this case, a 49-year-old male material handler was accidentally splashed with ACR solution on both of his upper limbs. Consequently, he was admitted to the hospital with toxic encephalopathy, characterized by cerebellar ataxia and slurred speech. Magnetic resonance imaging scan, a brain computed tomography scan blood sample analyses, optic coherence tomography, electroneuromyogram, and visual evoked potentials examination were performed. After 20 days of receiving symptomatic support treatment, the patient continued to experience disturbances in consciousness. Then, he developed vision loss, memory disorders, and symptoms of peripheral neuropathy such as skin peeling, extremity weakness, and absent tendon reflexes. This case report underscores the severe consequences of acute dermal exposure to high concentrations of ACR, resulting in toxic encephalopathy, visual impairment, and memory disorders, which will contribute to a broader understanding of ACR toxicity.


Assuntos
Acrilamida , Síndromes Neurotóxicas , Masculino , Humanos , Pessoa de Meia-Idade , Acrilamida/toxicidade , Potenciais Evocados Visuais , Síndromes Neurotóxicas/etiologia , Transtornos da Visão/induzido quimicamente , Transtornos da Memória/induzido quimicamente
12.
Phytomedicine ; 126: 155448, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38394736

RESUMO

BACKGROUND: Acrylamide (ACR) is a widely used compound that is known to be neurotoxic to both experimental animals and humans, causing nerve damage. The widespread presence of ACR in the environment and food means that the toxic risk to human health can no longer be ignored. Rosmarinic acid (RA), a natural polyphenolic compound extracted from the perilla plant, exhibits anti-inflammatory, antioxidant, and other properties. It has also been demon strated to possess promising potential in neuroprotection. However, its role and potential mechanism in treating ACR induced neurotoxicity are still elusive. PURPOSE: This study explores whether RA can improve ACR induced neurotoxicity and its possible mechanism. METHODS: The behavioral method was used to study RA effect on ACR exposed mice's neurological function. We studied its potential mechanism through metabolomics, Nissl staining, HE staining, immunohistochemical analysis, and Western blot. RESULTS: RA pretreatment reversed the increase in mouse landing foot splay and decrease in spontaneous activity caused by 3 weeks of exposure to 50 mg/kg/d ACR. Further experiments demonstrated that RA could prevent ACR induced neuronal apoptosis, significantly downregulate nuclear factor-κB and tumor necrosis factor-α expression, and inhibit NOD-like receptor protein 3 inflammasome activation, thereby reducing inflammation as confirmed by metabolomics results. Additionally, RA treatment prevented endoplasmic reticulum stress (ERS) caused by ACR exposure, as evidenced by the reversal of significant P-IRE1α,TRAF2,CHOP expression increase. CONCLUSION: RA alleviates ACR induced neurotoxicity by inhibiting ERS and inflammation. These results provide a deeper understanding of the mechanism of ACR induced neurotoxicity and propose a potential new treatment method.


Assuntos
Estresse Oxidativo , Ácido Rosmarínico , Camundongos , Humanos , Animais , Acrilamida/toxicidade , Endorribonucleases , Proteínas Serina-Treonina Quinases , Hipocampo , Inflamação/tratamento farmacológico , Estresse do Retículo Endoplasmático
13.
Clin Exp Pharmacol Physiol ; 51(3): e13841, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38302077

RESUMO

The study aimed to investigate the harmful effects of acrylamide (AA), which forms in carbohydrate-rich foods at temperatures above 120°C, on the central and peripheral nervous systems and to evaluate the potential neuroprotective effects of carvacrol (CRV). Male Wistar Albino rats were subjected to AA (40 mg/kg/bw/day) and CRV (50 mg/kg/bw/day) for 15 days. Following the last administration, evaluations revealed disrupted gait, heightened thermal sensitivity and altered paw withdrawal thresholds in AA-exposed rats. Notably, AA reduced glutathione (GSH) and raised malondialdehyde (MDA) levels in both brain and sciatic nerve tissues. AA raised nuclear factor erythroid 2-related factor 2 (Nrf2), caspase 3 and nuclear factor κB (NF-κB) gene expressions while decreasing NR4A2. CRV co-administration mitigated gait abnormalities, elevated GSH levels and lowered MDA levels in both tissues. CRV also modulated gene expression, reducing Nrf2 and NF-κB while increasing NR4A2. Histopathological signs of AA-induced neurodegeneration and elevated glial fibrillary acidic protein levels observed in brain and sciatic nerve tissues were rectified with simultaneous administration of CRV, thereby demonstrating neuroprotective efficacy in both regions. This study is pioneering in demonstrating CRV's neuroprotective potential against AA-induced neurotoxicity in both central and peripheral nervous systems, effectively addressing limitations in the literature. In conclusion, the study revealed AA-induced neurodegeneration in the brain and sciatic nerve, with CRV significantly mitigating this neurotoxicity. This novel research underscores CRV's promise as a neuroprotective agent against AA-induced adverse effects in both the central and peripheral nervous systems.


Assuntos
Cimenos , Fármacos Neuroprotetores , Síndromes Neurotóxicas , Ratos , Masculino , Animais , Fármacos Neuroprotetores/farmacologia , Fármacos Neuroprotetores/uso terapêutico , Ratos Wistar , Estresse Oxidativo , Acrilamida/toxicidade , NF-kappa B/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Antioxidantes/farmacologia , Nervo Isquiático/metabolismo , Síndromes Neurotóxicas/metabolismo , Encéfalo/metabolismo
14.
J Biochem Mol Toxicol ; 38(2): e23658, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38348719

RESUMO

Vinpocetine (VIN) is a synthetic drug derived from the natural alkaloid vincamine. The antioxidation and anti-inflammation effects of VIN allow it to be used for multiple therapeutic purposes. So, the research aims to discover the possibility of using VIN to improve the nephrotoxicity of acrylamide (ACR). Twenty-four male albino rats were used in the trial: rats in the control group received 0.5 mL of oral saline, rats in the VIN group received an oral dose of VIN (5 mg/kg), rats in the ACR group received an oral dose of ACR (38.27 mg/kg), and rats in the VIN + ACR group received VIN and then ACR 1 h later. Rat blood and kidneys were collected 10 days after the experiment began to assess biochemical parameters and to examine both renal histopathological and immunohistochemistry. The ACR-treated rats showed high levels of serum kidney function biomarkers (creatinine, urea, and uric acid), serum protein biomarkers (total protein, albumin, and globulin), renal kidney injury molecule (KIM)-1, renal malondialdehyde (MDA), and renal caspase-3 immunoexpression. Moreover, ACR lowed both renal superoxide dismutase (SOD) activity and renal glutathione (GSH) level and caused renal histological alterations. While administration of VIN improved serum kidney function biomarkers, serum protein biomarkers, renal KIM-1, renal oxidative stress biomarkers (MDA, SOD, and GSH), renal caspase-3 immunoexpression, and renal histological alterations induced by ACR. The study confirmed the ability of VIN to reduce the nephrotoxic effects of ACR, which was evident through the results of biochemical parameters and histological and immunohistochemical examinations of the kidney tissues.


Assuntos
Acrilamida , Insuficiência Renal , Alcaloides de Vinca , Ratos , Masculino , Animais , Caspase 3/metabolismo , Acrilamida/toxicidade , Rim , Antioxidantes/farmacologia , Estresse Oxidativo , Glutationa/metabolismo , Superóxido Dismutase/metabolismo , Proteínas Sanguíneas/metabolismo , Biomarcadores/metabolismo , Malondialdeído/metabolismo
15.
Toxicology ; 502: 153729, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38242491

RESUMO

Acrylamide (ACR), a toxin present in fried and baked carbohydrate-rich foods, is known to cause liver and kidney damage. This study aimed to investigate the mechanisms of oxidative stress, inflammation, and apoptosis that contribute to liver and kidney damage induced by chronic administration of ACR. Additionally, the effectiveness of vitamin E in mitigating these toxic effects was examined. The study initially involved dividing 40 pregnant rats into four groups. After lactation, the research continued with male offspring rats from each group. The offspring rats were divided into Control, Vitamin E, ACR, and ACR + Vitamin E groups. Following ACR administration, liver and kidney function tests were performed on serum samples. Biochemical analyses, evaluation of inflammation markers, histopathological examination, and assessment of protein levels of Akt/IκBα/NF-κB, Bax, Bcl-xL, and Caspase-9 were conducted on liver and kidney tissues. The analysis demonstrated that ACR adversely affected liver and kidney function, resulting in oxidative stress, increased inflammation, and elevated apoptotic markers. Conversely, administration of vitamin E positively impacted these parameters, restoring them to control levels. Based on the results, the mechanism of ACR's action on oxidative stress and inflammation-induced liver and kidney damage may be associated with the activation of apoptotic markers such as Bax and Caspase-9, as well as the Akt/IκBα/NF-κB signaling pathway. Consequently, the protective properties of vitamin E establish it as an essential vitamin for the prevention or mitigation of various ACR-induced damages.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas , NF-kappa B , Feminino , Ratos , Masculino , Animais , NF-kappa B/metabolismo , Inibidor de NF-kappaB alfa/metabolismo , Inibidor de NF-kappaB alfa/farmacologia , Proteína X Associada a bcl-2/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Caspase 9/metabolismo , Vitamina E/farmacologia , Vitamina E/uso terapêutico , Acrilamida/toxicidade , Transdução de Sinais , Estresse Oxidativo , Inflamação , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Desenvolvimento Fetal , Apoptose , Antioxidantes/farmacologia
16.
Ecotoxicol Environ Saf ; 269: 115912, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38181562

RESUMO

In this study, we established a coculture model comprising human neuroblastoma SH-SY5Y cells and induced pluripotent stem cell-derived astrocytes, faithfully replicating the human brain environment for in vitro neurotoxicity assessment. We optimized the cell differentiation duration and cell ratios to obtain images conducive to neurite outgrowth evaluation. Subsequently, the neurotoxic effects in the coculture and monoculture of SH-SY5Y cells were confirmed using neurotoxic agents such as acrylamide (ACR) and hydrogen peroxide (H2O2). Disparities in the neurotoxic impacts of ACR and H2O2 within the coculture were mirrored in the expression of genes associated with early neuronal injury. Notably, the reduction in neurite outgrowth induced by neurotoxic agents revealed the coculture's lower sensitivity compared to monocultures. Furthermore, the coculture system exhibited distinct effects of test agents on nerve damage and manifested protective influences on nerve cells. The proposed methodology holds promise for large-scale chemical neurotoxicity screening through neurite change measurements. This in vitro coculture model, accounting for cell interactions, emerges as a valuable tool in toxicity testing, offering insights into the potential effects of chemicals within the human body.


Assuntos
Neuroblastoma , Síndromes Neurotóxicas , Humanos , Astrócitos , Técnicas de Cocultura , Peróxido de Hidrogênio , Acrilamida/toxicidade
17.
PeerJ ; 12: e15638, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38188145

RESUMO

A novel Artemisinin/Quercetin/Zinc (Art/Q/Zn) mixed ligand complex was synthesized, tested for its antiviral activity against coronavirus (SARS-CoV-2), and investigated for its effect against toxicity and oxidative stress induced by acrylamide (Acy), which develops upon cooking starchy foods at high temperatures. The synthesized complex was chemically characterized by performing elemental analysis, conductance measurements, FT-IR, UV, magnetic measurements, and XRD. The morphological surface of the complex Art/Q/Zn was investigated using scanning and transmission electron microscopy (SEM and TEM) and energy dispersive X-ray analysis (XRD). The in vitro antiviral activity of the complex Art/Q/Zn against SARS-CoV-2 and its in vivo activity against Acy-induced toxicity in hepatic and pulmonary tissues were analyzed. An experimental model was used to evaluate the beneficial effects of the novel Art/Q/Zn novel complex on lung and liver toxicities of Acy. Forty male rats were randomly divided into four groups: control, Acy (500 mg/Kg), Art/Q/Zn (30 mg/kg), and a combination of Acy and Art/Q/Zn. The complex was orally administered for 30 days. Hepatic function and inflammation marker (CRP), tumor necrosis factor, interleukin-6 (IL-6), antioxidant enzyme (CAT, SOD, and GPx), marker of oxidative stress (MDA), and blood pressure levels were investigated. Histological and ultrastructure alterations and caspase-3 variations (immunological marker) were also investigated. FT-IR spectra revealed that Zn (II) is able to chelate through C=O and C-OH (Ring II) which are the carbonyl oxygen atoms of the quercetin ligand and carbonyl oxygen atom C=O of the Art ligand, forming Art/Q/Zn complex with the chemical formula [Zn(Q)(Art)(Cl)(H2O)2]⋅3H2O. The novel complex exhibited a potent anti-SARS-CoV-2 activity even at a low concentration (IC50 = 10.14 µg/ml) and was not cytotoxic to the cellular host (CC50 = 208.5 µg/ml). Art/Q/Zn may inhibit the viral replication and binding to the angiotensin-converting enzyme-2 (ACE2) receptor and the main protease inhibitor (MPro), thereby inhibiting the activity of SARS-CoV-2 and this proved by the molecular dynamics simulation. It alleviated Acy hepatic and pulmonary toxicity by improving all biochemical markers. Therefore, it can be concluded that the novel formula Art/Q/Zn complex is an effective antioxidant agent against the oxidative stress series, and it has high inhibitory effect against SARS-CoV-2.


Assuntos
Artemisininas , COVID-19 , Masculino , Animais , Ratos , Antioxidantes/farmacologia , Quercetina/farmacologia , SARS-CoV-2 , Zinco/farmacologia , Ligantes , Espectroscopia de Infravermelho com Transformada de Fourier , Artemisininas/farmacologia , Antivirais/farmacologia , Acrilamida/toxicidade , Oxigênio
18.
Compr Rev Food Sci Food Saf ; 23(1): e13260, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38284574

RESUMO

Thermal processing techniques can lead to the formation of heat-induced toxic substances. Acrylamide is one contaminant that has received much scientific attention in recent years, and it is formed essentially during the Maillard reaction when foods rich in carbohydrates, particularly reducing sugars (glucose, fructose), and certain free amino acids, especially asparagine (ASN), are processed at high temperatures (>120°C). The highly variable free ASN concentration in raw materials makes it challenging for food businesses to keep acrylamide content below the European Commission benchmark levels, while avoiding flavor, color, and texture impacts on their products. Free ASN concentrations in crops are affected by environment, genotype, and soil fertilization, which can also influence protein content and amino acid composition. This review aims to provide an overview of free ASN and acrylamide quantification methods and mitigation strategies for acrylamide formation in foods, focusing on adding pulse flours to cereal-based snacks and bakery products. Overall, this review emphasizes the importance of these mitigation strategies in minimizing acrylamide formation in plant-based products and ensuring safer and healthier food options.


Assuntos
Asparagina , Grão Comestível , Asparagina/análise , Asparagina/química , Asparagina/metabolismo , Grão Comestível/química , Acrilamida/análise , Acrilamida/química , Acrilamida/toxicidade , Lanches , Carboidratos/análise , Carboidratos/química , Aminoácidos/análise
19.
Sci Rep ; 14(1): 1910, 2024 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-38253778

RESUMO

This study aimed to investigate the effects of eugenol treatment on reproductive parameters in acrylamide (ACR)-intoxicated rats. The study evaluated alterations in relative testes and epididymides weights, sperm quality, serum hormonal status, seminal plasma amino acids, testicular cell energy and phospholipids content, oxidative and nitrosative stress parameters, adenosine monophosphate-activated protein kinase/ phosphoinositide 3-kinase/phosphor-protein kinase B/mammalian target of rapamycin (AMPK/PI3K/p-AKT/mTOR) signaling pathway, blood-testis barrier (BTB) remodeling markers, testicular autophagy and apoptotic markers, as well as histopathological alterations in testicular tissues. The results revealed that eugenol treatment demonstrated a significant improvement in sperm quality parameters, with increased sperm cell concentration, progressive motility live sperm, and a reduction in abnormal sperm, compared to the ACR-intoxicated group. Furthermore, eugenol administration increased the levels of seminal plasma amino acids in a dose-dependent manner. In addition, eugenol treatment dose-dependently improved testicular oxidative/nitrosative stress biomarkers by increasing oxidized and reduced glutathione levels and reducing malondialdehyde and nitric oxide contents as compared to ACRgroup. However, eugenol treatment at a high dose restored the expression of AMPK, PI3K, and mTOR genes, to levels comparable to the control group, while significantly increasing p-AKT content compared to the ACRgroup. In conclusion, the obtained findings suggest the potential of eugenol as a therapeutic agent in mitigating ACR-induced detrimental effects on the male reproductive system via amelioration of ROS-mediated autophagy, apoptosis, AMPK/p-AKT/mTOR signaling pathways and BTB remodeling.


Assuntos
Antifibrinolíticos , Testículo , Masculino , Animais , Ratos , Proteínas Quinases Ativadas por AMP , Eugenol/farmacologia , Proteínas Proto-Oncogênicas c-akt , Barreira Hematotesticular , Fosfatidilinositol 3-Quinases , Sêmen , Transdução de Sinais , Serina-Treonina Quinases TOR , Acrilamida/toxicidade , Aminoácidos , Mamíferos
20.
Naunyn Schmiedebergs Arch Pharmacol ; 397(2): 829-841, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37515736

RESUMO

Acrylamide (ACR) is a toxic chemical frequently encountered in daily life, posing health risks. This study aimed to elucidate the molecular-level mechanism of ACR's toxic effects on testicles and investigate whether Vitamin E can mitigate these effects. A total of 40 adult pregnant rats were utilized, divided into four groups: Control, ACR, Vitamin E, and ACR + Vitamin E. ACR and Vitamin E were administered to the mother rats during pregnancy and lactation, and to the male offspring until the 8th week post-birth. Serum hormone levels, oxidant-antioxidant parameters, histopathological examination of testicular tissue, and mRNA and protein levels of the testicular and liver aromatase gene were analyzed. Spermiogram analysis was conducted on the collected sperm samples from the male offspring. The results revealed that ACR exposure adversely affected hormone levels, oxidant-antioxidant parameters, histological findings, as well as aromatase gene and protein expressions. However, Vitamin E administration effectively prevented the toxic effects of ACR. These findings demonstrate that ACR application significantly impairs the reproductive performance of male offspring rats by increasing liver aromatase activity.


Assuntos
Antioxidantes , Vitamina E , Gravidez , Feminino , Ratos , Masculino , Animais , Vitamina E/farmacologia , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Testículo , Acrilamida/toxicidade , Acrilamida/metabolismo , Aromatase/genética , Aromatase/metabolismo , Aromatase/farmacologia , Sêmen/metabolismo , Estresse Oxidativo , Oxidantes/metabolismo , Oxidantes/farmacologia , Hormônios/farmacologia
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