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Saleh DO, Baraka SM, Jaleel GAA, Hassan A, Ahmed-Farid OA. Eugenol alleviates acrylamide-induced rat testicular toxicity by modulating AMPK/p-AKT/mTOR signaling pathway and blood-testis barrier remodeling. Sci Rep 2024; 14:1910. [PMID: 38253778 PMCID: PMC10803763 DOI: 10.1038/s41598-024-52259-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
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.
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Affiliation(s)
- Dalia O Saleh
- Pharmacology Department, National Research Centre, Giza, 12622, Egypt.
| | - Sara M Baraka
- Chemistry of Natural Compounds Department, National Research Centre, Giza, 12622, Egypt
| | | | - Azza Hassan
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Omar A Ahmed-Farid
- Physiology Department, National Organization for Drug Control and Research, Giza, Egypt
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2
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Idris AO, Alabi QK, Ologe MF, Oluogun WA, Akanbi MHJ, Iwalewa EO. Evaluation of acrylamide exposure in pregnant Wistar rats as a risk of developing renal disease in their litters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:39680-39691. [PMID: 33763836 DOI: 10.1007/s11356-021-13580-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
This study was designed at evaluating the acrylamide (ACR) exposure in pregnant Wistar rats as a risk of developing renal disease in their litters. Four groups of pregnant female rats were used. Group 1 control animals were given 2 ml/kg/day of distilled water. Groups 2, 3, and 4 animals were given oral gavage doses of 2, 5, and 10 mg/kg/day of ACR respectively immediately pregnancy was confirmed. Mother rats were sacrificed 10 weeks after delivery and litters were sacrificed at 13 weeks. Proteinuria was observed in ACR-treated mother rats and their litters. Serum electrolytes, urea, and creatinine values observed in the treated group were deranged for both the mothers and litters respectively. Disruption of nephrogenesis was observed in the litters of ACR-treated mother compared to the control. The results of the effect of ACR on lipid profile indicated a significant elevation in the LDL, cholesterol, and triglyceride compared to the control. There was significant reduction in the SOD, catalase, GSH, and significant elevation in the C-reactive protein and malondialdehyde. Conclusively, exposure to acrylamide during pregnancy is a risk factor for the development of renal disease in the mother rats and their litters.
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Affiliation(s)
- Adeoye Oyewole Idris
- Department of Physiology, Faculty of Basic Medical Sciences, Adeleke University, P.M.B 250, Ede, Osun State, Nigeria.
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ilorin, P.M.B 1515, Ilorin, Nigeria.
| | - Quadri Kunle Alabi
- Department of Physiology, Faculty of Basic Medical Sciences, Adeleke University, P.M.B 250, Ede, Osun State, Nigeria.
| | - Mary Funmilayo Ologe
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ilorin, P.M.B 1515, Ilorin, Nigeria
| | - Waheed Akanni Oluogun
- Department of Morbid Anatomy and Histopathology, Ladoke Akintola University of Technology Teaching Hospital, Osogbo, Osun State, Nigeria
| | - Marijke Haas Jimoh Akanbi
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ilorin, P.M.B 1515, Ilorin, Nigeria
- BiOMaDe Technology Foundation, Nijenborgh 4, 9747, AG, Groningen, The Netherlands
| | - Ezekiel Olugbenga Iwalewa
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Health Sciences, University of Ibadan, Ibadan, Oyo State, Nigeria
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Gül M, Kayhan Kuştepe E, Erdemli ME, Altınöz E, Gözükara Bağ HG, Gül S, Göktürk N. Protective effects of crocin on acrylamide-induced testis damage. Andrologia 2021; 53:e14176. [PMID: 34309867 DOI: 10.1111/and.14176] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/30/2021] [Accepted: 06/02/2021] [Indexed: 01/04/2023] Open
Abstract
Exposure to acrylamide (Ac) through food is almost inevitable and this kind of toxicity may cause lifelong harm. In present study, we researched effects of Crocin (Cr) on testis histopathology in Ac-induced testis of rats. Adult male rats were grouped as: group 1, 1 ml saline only; group 2, 50 mg/kg Cr only; group 3, 25 mg/kg Ac only and group 4, 25 mg/kg Ac + 50 mg/kg Cr. All administrations were given as 1 ml/day by gavage for 21 days. It was found that Ac adversely influenced the levels of FSH, testosterone and LH in the blood serum; malondialdehyde (MDA), total antioxidant status (TOS), oxidative stress index (OSI)/ glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), total antioxidant status (TAS) oxidant/antioxidant parameters in testis tissue (p < .01) and the histopathological parameters like Johnson's score, seminiferous tubule diameter, seminiferous epithelial height and H-score for caspase-3 immunoreactivity. In contrary, Cr treatment resulted in increase in testosterone, follicle stimulating hormone (FSH), luteinizan hormone (LH) levels and SOD, CAT, GSH, TAS levels (p < .01) and improved all the histopathological changes. In conclusion, Cr has a promising protective potential against Ac-caused toxic damages in testicular tissue.
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Affiliation(s)
- Mehmet Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Battalgazi, Turkey
| | - Elif Kayhan Kuştepe
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Battalgazi, Turkey
| | - Mehmet Erman Erdemli
- Department of Medical Biochemistry, Faculty of Medicine, İnönü University, Battalgazi, Turkey
| | - Eyüp Altınöz
- Department of Medical Biochemistry, Faculty of Medicine, Karabük University, Kılavuzlar, Turkey
| | - Harika Gözde Gözükara Bağ
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, İnönü University, Battalgazi, Turkey
| | - Semir Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Battalgazi, Turkey
| | - Nurcan Göktürk
- Department of Medical Biochemistry, Faculty of Medicine, İnönü University, Battalgazi, Turkey
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Ekuban FA, Zong C, Takikawa M, Morikawa K, Sakurai T, Ichihara S, Itoh K, Yamamoto M, Ohsako S, Ichihara G. Genetic ablation of Nrf2 exacerbates neurotoxic effects of acrylamide in mice. Toxicology 2021; 456:152785. [PMID: 33872730 DOI: 10.1016/j.tox.2021.152785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/20/2021] [Accepted: 04/12/2021] [Indexed: 12/20/2022]
Abstract
Acrylamide (ACR), a recognized neurotoxicant in humans and experimental animals, is widely used in industry and in food generated through Maillard reaction. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a master regulator of the cellular defense system and activates antioxidants and cytoprotective genes. The exact roles of Nrf2 in environmental electrophile-induced neurotoxicity is poorly understood. The aim of this study was to determine the roles of Nrf2 in ACR-induced neurotoxicity including degeneration of monoaminergic axons and sensorimotor dysfunction. Male 10-week-old C57BL/6JJcl Nrf2-knockout mice and wild type (WT) counterparts were each divided into four groups of 12 and provided with drinking water containing acrylamide at 0, 67, 110 or 200 ppm for four weeks. The effects of acrylamide were examined by landing foot spread test, immunohistochemistry for noradrenaline (NA) and serotonin (5-HT)-containing axons and Iba1-positive microglia in the prefrontal cortex as well as quantitative real-time polymerase chain reaction (qRT-PCR) on antioxidant, proinflammatory and anti-inflammatory genes in the prefrontal cortex. Relative to the wild type, exposure of Nrf2-knockout mice to acrylamide increased hindlimb splay length, microglial area and process length as well as decreasing the density of NA and 5-HT-immunoreactive axons to a greater extent. Moreover, deletion of Nrf2 gene suppressed acrylamide-induced mRNA upregulation of Nrf2-antioxidants, NAD(P): quinone oxidoreductase 1 (NQO1), superoxide dismutase-1 (SOD-1) and heme oxygenase-1 (HO-1) as well as anti-inflammatory markers such as, arginase-1 (Arg1), found in the inflammatory zone-1 (Fizz1), chitinase-like 3 (Chi3l3), interleukin-4 receptor alpha (IL-4Rα), cluster of differentiation 206 (CD206) and transforming growth factor beta-1 (TGFβ1) while enhancing acrylamide-induced upregulation of pro-inflammatory cytokines, interleukin-1 beta (IL-1β), tumor necrosis-alpha (TNF-α) and inducible nitric oxide synthase (iNOS) in the prefrontal cortex. The results demonstrate susceptibility of mice lacking the Nrf2 gene to acrylamide-induced neurotoxicity and neuroinflammation with the activation of microglia. Moreover, the results suggest the role of Nrf2 not only in induction of antioxidant gene expression, but also in suppression of proinflammatory cytokine gene expression.
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Affiliation(s)
- Frederick Adams Ekuban
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Cai Zong
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Madoka Takikawa
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Kota Morikawa
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Toshihiro Sakurai
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Sahoko Ichihara
- Department of Environmental and Preventive Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Ken Itoh
- Department of Stress Response Hirosaki University, Hirosaki, Japan
| | - Masayuki Yamamoto
- Department of Molecular Biochemistry Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Seiichiroh Ohsako
- Laboratory of Environmental Health Sciences, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Gaku Ichihara
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan.
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Ngo-Thanh H, Thuy TD, Suzue K, Kamitani W, Yokoo H, Isoda K, Shimokawa C, Hisaeda H, Imai T. Long-term acrylamide exposure exacerbates brain and lung pathology in a mouse malaria model. Food Chem Toxicol 2021; 151:112132. [PMID: 33737113 DOI: 10.1016/j.fct.2021.112132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/19/2022]
Abstract
The consumption of dietary acrylamide (ACR), a carcinogen, results in the dysfunction of various organs and the immune system. However, the impact of ACR exposure on the progression of infectious diseases is unknown. This study investigated the effect of ACR on the progression of malaria infection using a mouse model of malaria. C57BL/6 mice were continuously treated with ACR at a dose of 20 mg/kg bodyweight/day for six weeks (long-term exposure) or phosphate-buffered saline (PBS). Next, the mice were infected with the rodent malaria parasite, Plasmodium berghei NK65 (PbNK). Parasitemia and survival rate were analyzed in the different treatment groups. Magnetic resonance imaging (MRI) and histopathological analyses were performed to evaluate the effect of ACR exposure on the morphology of various organs. Long-term ACR exposure exacerbated PbNK-induced multiorgan dysfunction. MRI and histopathological analysis revealed signs of encephalomeningitis and acute respiratory distress syndrome in the PbNK-infected long-term ACR exposure mice, which decreased the survival rate of mice, but not in the PbNK-infected long-term PBS exposure group. These findings enhance our understanding of the impact of ACR on the progression of infectious diseases, such as malaria.
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Affiliation(s)
- Ha Ngo-Thanh
- Department of Infectious Diseases and Host Defense, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan; National Hospital for Tropical Diseases, Hanoi, Viet Nam
| | - Trang Dam Thuy
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Kazutomo Suzue
- Department of Infectious Diseases and Host Defense, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Wataru Kamitani
- Department of Infectious Diseases and Host Defense, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Hideaki Yokoo
- Department of Pathology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Koji Isoda
- Department of Pathology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Chikako Shimokawa
- Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hajime Hisaeda
- Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Takashi Imai
- Department of Infectious Diseases and Host Defense, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
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Omidi Z, Piravar Z, Ramezani M. The effect of acrylamide on mitochondrial membrane potential and glutathione extraction in human spermatozoa: A laboratory study. Int J Reprod Biomed 2020; 18:855-864. [PMID: 33134798 PMCID: PMC7569713 DOI: 10.18502/ijrm.v13i10.7770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/18/2019] [Accepted: 05/30/2020] [Indexed: 11/29/2022] Open
Abstract
Background Acrylamide (AA) is a compound used in the industrial production of polyacrylamide. AAs affects by creating oxidative stress. It produces reactive oxygen species and leads to lipid peroxide. Lipid peroxidation in the cell membrane is one of the most important oxidations in the sperm, which can disrupt the fluidity and permeability of cell membranes and damage all cells. Objective To investigate the different concentrations of AA on human sperm parameters based on the World Health Organization standard and its impact on mitochondrial membrane potential and sperm glutathione levels. Materials and Methods In this laboratory study, we examined the different concentrations of AA on human sperm parameters based on the World Health Organization standard and its impact on mitochondrial membrane potential by flow cytometry and sperm glutathione levels by ELISA assay. Results The results were reported as the mean fluorescence intensity of JC and the index was observed to decrease following the effect of AA in mitochondrial membrane potential (Δ Ψm). The results of ELISA test to study the level of intracellular glutathione showed that with the increase in the concentration of AA exposed to sperms, there was a significant reduction in the level of intracellular glutathione. Conclusion AA destroys the sperm membrane integrity under apoptotic and oxidative inductions with a negative impact on mitochondrial function and antioxidative enzyme in sperm such as glutathione.
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Affiliation(s)
- Zeinab Omidi
- Department of Biology, Faculty of Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Zeinab Piravar
- Department of Biology, Faculty of Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mina Ramezani
- Department of Biology, Faculty of Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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7
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Chu PL, Liu HS, Wang C, Lin CY. Association between acrylamide exposure and sex hormones in males: NHANES, 2003-2004. PLoS One 2020; 15:e0234622. [PMID: 32555690 PMCID: PMC7302712 DOI: 10.1371/journal.pone.0234622] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 05/29/2020] [Indexed: 12/27/2022] Open
Abstract
Introduction Acrylamide is widely present in heat-processed food, cigarette smoke and environment. Reproductive toxicity was reported in animals treated with acrylamide, particularly in males. The reproductive toxicity of acrylamide and its active metabolite, glycidamide, was reported to be mainly mediated through DNA damage in spermatocytes. However, the effect of acrylamide on sex hormones in men is unknown. Methods There were 468 male subjects (age ≧ 12 years) enrolled to determine the relationships between hemoglobin adducts of acrylamide (HbAA) and hemoglobin adducts of glycidamide (HbGA) with several sex hormones using the National Health and Nutrition Examination Survey (NHANES), 2003 to 2004. All potential confounding variables in the data set were properly adjusted. Results We found that one unit increase in the natural log-transformed HbAA level was associated with an increase in natural log transformed serum inhibin B level by 0.10 (SE = 0.05; P = 0.046), and natural log transformed serum sex hormone binding globulin (SHBG) by 0.15 (SE = 0.15; P = 0.036). With respect to HbGA, one unit increase in the natural log-transformed HbGA level was associated with an increase in natural log transformed serum anti-Müllerian Hormone (AMH) level by 0.31 (SE = 0.00; P = 0.003). Conclusion In this representative cohort, we identified positive associations between acrylamide exposure and several sex hormones in men. The HbAA is positively associated with inhibin B and SHBG, and HbGA is positively associated with AMH. Other than genotoxicity, our findings suggested that altered sex hormones might also play a role in acrylamide-related reproductive toxicity in males.
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Affiliation(s)
- Pei-Lun Chu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
- Department of Internal Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei, Taiwan
| | - Hui-Shan Liu
- Department of Gynecology and Obstetrics, Hsinchu Cathay General Hospital, Hsinchu, Taiwan
| | - Chikang Wang
- Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu, Taiwan
| | - Chien-Yu Lin
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
- Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu, Taiwan
- Department of Internal Medicine, En Chu Kong Hospital, New Taipei, Taiwan
- * E-mail:
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Ivanski F, de Oliveira VM, de Oliveira IM, de Araújo Ramos AT, de Oliveira Tonete ST, de Oliveira Hykavei G, Bargi-Souza P, Schiessel DL, Martino-Andrade AJ, Romano MA, Marino Romano R. Prepubertal acrylamide exposure causes dose-response decreases in spermatic production and functionality with modulation of genes involved in the spermatogenesis in rats. Toxicology 2020; 436:152428. [PMID: 32151602 DOI: 10.1016/j.tox.2020.152428] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 02/28/2020] [Accepted: 03/05/2020] [Indexed: 11/29/2022]
Abstract
The increase in human infertility prevalence due to male reproductive disorders has been associated with extensive endocrine-disrupting chemical (EDC) exposure. Acrylamide (AA) is a compound formed spontaneously during heat processing of some foods that are mainly consumed by children and adolescents. In this study, we evaluated the prepubertal AA exposure effects on male adult reproductive physiology using a prepubertal experimental model to analyze the pubertal development, spermatogenesis hormones levels and genes expression involved in male reproductive function. This study is the first one to use the validated protocol to correlate the AA exposure with puberty development, as well as the AA-induced endocrine disrupting effects on reproductive axis. AA did not affect the age at puberty, the reproductive organ's weight and serum hormonal levels. AA reduces spermatogenesis, induces morphological and functional defects on sperm and alters transcript expression of sexual hormone receptors (Ar and Esr2), the transcript expression of Tnf, Egr2, Rhcg and Lrrc34. These findings suggest that excessive AA consumption may impair their reproductive capacity at adulthood, despite no changes in hormonal profile being observed.
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Affiliation(s)
- Fernanda Ivanski
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Viviane Matoso de Oliveira
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Isabela Medeiros de Oliveira
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Anderson Tadeu de Araújo Ramos
- Department of Physiology, Animal Endocrine and Reproductive Physiology Laboratory, Federal University of Paraná (UFPR), Centro Politécnico, 81531-980,PO Box 19031, Curitiba, Parana, Brazil.
| | - Selma Thaisa de Oliveira Tonete
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Gabriel de Oliveira Hykavei
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Paula Bargi-Souza
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Avenida Presidente Antônio Carlos, 6627, 31270-901, Minas Gerais, Brazil.
| | - Dalton Luiz Schiessel
- Department of Nutrition, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, Zip-Code 85040-080, Parana, Brazil.
| | - Anderson Joel Martino-Andrade
- Department of Physiology, Animal Endocrine and Reproductive Physiology Laboratory, Federal University of Paraná (UFPR), Centro Politécnico, 81531-980,PO Box 19031, Curitiba, Parana, Brazil.
| | - Marco Aurelio Romano
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
| | - Renata Marino Romano
- Laboratory of Reproductive Toxicology, Department of Medicine, State University of Central-West, Rua Simeao Camargo Varela de Sa, 03, 85040-080, Parana, Brazil.
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9
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Wawrzyniak R, Jasiewicz B. Straightforward and rapid determination of acrylamide in coffee beans by means of HS-SPME/GC-MS. Food Chem 2019; 301:125264. [PMID: 31377623 DOI: 10.1016/j.foodchem.2019.125264] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 06/19/2019] [Accepted: 07/26/2019] [Indexed: 11/19/2022]
Abstract
A straightforward and rapid preparation procedure for the extraction of the acrylamide from coffee beans, by means of the volatile silylated derivatives of acrylamide (AA) and headspace solid phase microextraction (HS-SPME) is described. Commercially available SPME fibre coated with polydimethylsiloxane (PDMS) was used. The silylation reactions of the AA were executed with N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA). The deuterium labelled d3-acrylamide was used as an internal standard. The acrylamide level was quantified using gas chromatography coupled with the mass spectrometry (GC-MS) in the selected ion monitoring (SIM) mode. The limit of quantification (LOQ) for measuring acrylamide was 3 µg/kg. The described method demonstrates satisfactory repeatability (RSD = 2.6%), with an intermediate precision (RSD = 9.4%) and recovery (99-105%).
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Affiliation(s)
- Rafał Wawrzyniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, ul. Umultowska 89 b, 61-614 Poznań, Poland.
| | - Beata Jasiewicz
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, ul. Umultowska 89 b, 61-614 Poznań, Poland.
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10
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Nagashima D, Zhang L, Kitamura Y, Ichihara S, Watanabe E, Zong C, Yamano Y, Sakurai T, Oikawa S, Ichihara G. Proteomic analysis of hippocampal proteins in acrylamide-exposed Wistar rats. Arch Toxicol 2019; 93:1993-2006. [DOI: 10.1007/s00204-019-02484-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 05/15/2019] [Indexed: 01/08/2023]
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11
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de Souza NP, Cardoso AF, Gomide L, Lima T, Miot HA, Martino-Andrade AJ, Arnold LL, Pennington KL, Cohen SM, de Camargo J, Nascimento E Pontes MG. Experimental cryptorchidism enhances testicular susceptibility to dibutyl phthalate or acrylamide in Sprague-Dawley rats. Hum Exp Toxicol 2019; 38:899-913. [PMID: 30995857 DOI: 10.1177/0960327119845040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Cryptorchidism (CPT), the most common male congenital abnormality, is variably associated with other male reproductive tract problems. We evaluated if cryptorchid rats develop enhanced testicular susceptibility to dibutyl phthalate (DBP) or acrylamide (AA) after extended exposure. Three studies with rats were performed: (1) in utero and postnatal exposure to DBP or AA; (2) establishment of CPT and orchiopexy; and (3) in utero and postnatal exposures to DBP or AA associated with CPT/orchiopexy. Seminiferous tubules were histologically scored according to the severity of lesions: (1) Rats exposed to DBP (score 1.5) or AA (score 1.1) presented mostly preserved spermatogenesis. Some seminiferous tubules showed vacuolated germinative epithelium, germ cell apoptosis, and a Sertoli cell-only (SCO) pattern. (2) CPT (score 3.3) resulted in decreased absolute testes weights, degenerated and SCO tubules, and spermatogenesis arrest that were reversed by orchiopexy (score 1.1). (3) Exposure to DBP or AA with CPT/orchiopexy led to atrophic testes, spermatogenesis arrest, germ cell exfoliation/multinucleation, and SCO tubules (both chemicals score 2.5). Exposure to chemicals such as DBP or AA prevented the recovery of cryptorchid testes by orchiopexy. The possible role of environmental contaminants should be considered when looking for factors that modulate human testicular disorders associated with CPT.
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Affiliation(s)
- N P de Souza
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
| | - Ap Ferragut Cardoso
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
| | - Lmm Gomide
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
| | - Trr Lima
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
| | - H A Miot
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
| | - A J Martino-Andrade
- 2 Department of Physiology, Polytechnic Centre, Federal University of Paraná, Curitiba, Brazil
| | - L L Arnold
- 3 Department of Pathology and Microbiology and the Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - K L Pennington
- 3 Department of Pathology and Microbiology and the Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - S M Cohen
- 3 Department of Pathology and Microbiology and the Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.,4 Havlik-Wall Professor of Oncology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jlv de Camargo
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
| | - M G Nascimento E Pontes
- 1 Department of Pathology, Center for Evaluation of the Impact of the Environmental on Human Health (TOXICAM), Botucatu Medical School, Botucatu Campus, Sao Paulo State University (UNESP), São Paulo, Brazil
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Yu D, Xie X, Qiao B, Ge W, Gong L, Luo D, Zhang D, Li Y, Yang B, Kuang H. Gestational exposure to acrylamide inhibits mouse placental development in vivo. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:160-170. [PMID: 30594716 DOI: 10.1016/j.jhazmat.2018.12.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 12/03/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Acrylamide, a carcinogen and neurotoxic substance, recently has been discovered in various heat-treated carbohydrate-rich foods. The aim of this study was to investigate the effects of acrylamide exposure on placental development. Pregnant mice received acrylamide by gavage at dosages of 0, 10, and 50 mg/kg/day from gestational days (GD) 3 until GD 8 or GD 13. The results showed that acrylamide feeding significantly decreased the numbers of viable embryos and increased the numbers of resorbed embryos on GD 13. Acrylamide exposure reduced the absolute and relative weight of placentas and embryos, and inhibited the development of ectoplacental cone (EPC) and placenta, as shown by the atrophy of EPC and reduced placental area. Acrylamide markedly reduced the numbers of labyrinth vessels. Expression levels of most placental key genes such as Esx1, Hand1, and Hand2 mRNA dramatically decreased in acrylamide-treated placentas. Furthermore, acrylamide treatment inhibited proliferation and induced apoptosis of placentas, as shown by decreased Ki67-positive cells and Bcl-2 protein, and increased the expression of Bax, cleaved-caspase-3, and cleaved-caspase-8 proteins. In conclusion, our results indicated that gestational exposure to acrylamide inhibits placental development through dysregulation of placental key gene expression and labyrinth vessels, suppression of proliferation, and apoptosis induction in mice.
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Affiliation(s)
- Dainan Yu
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xingxing Xie
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Bo Qiao
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Wenjing Ge
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Lixin Gong
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Dan Luo
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Dalei Zhang
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Yuezhen Li
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology, Medical Experimental Teaching Center, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Bei Yang
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Haibin Kuang
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China; Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology, Medical Experimental Teaching Center, Nanchang University, Nanchang, Jiangxi, 330006, PR China.
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Stošić M, Matavulj M, Marković J. Subchronic exposure to acrylamide leads to pancreatic islet remodeling determined by alpha cell expansion and beta cell mass reduction in adult rats. Acta Histochem 2018; 120:228-235. [PMID: 29454490 DOI: 10.1016/j.acthis.2018.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/08/2018] [Accepted: 02/08/2018] [Indexed: 01/09/2023]
Abstract
Acrylamide (AA) is a toxic substance, used to synthesize polymers for industrial and laboratory processes. Also, AA is a food contaminant formed during the high temperature preparation of carbohydrate-rich food. The main subject of this study was to examine effects of subchronic AA treatment on the islets of Langerhans of adult rats. Adult male Wistar rats were orally treated with 25 or 50 mg/kg bw of AA for 3 weeks. Qualitative and quantitative immunohistochemical evaluation of glucagon and insulin expression and stereological analyses of pancreatic alpha and beta cells were performed. Serum insulin and glucose levels were measured. Analysis of glucagon-immunostained sections revealed a dose-dependent increase of intensity of glucagon immunopositive signal, alpha cell surface and numerical densities, volume density of alpha cell nuclei and nucleocytoplasmic ratio in AA-treated groups compared to the control. In insulin-immunolabeled pancreatic sections in AA-treated animals was observed decrease of intensity of insulin immunopositive signal, beta cell surface, numerical and volume densities and volume density of beta cell cytoplasm. Serum insulin and glucose concentrations remained unchanged after both AA treatments. The number of islets of Langerhans was not affected by AA treatment. Our results suggest that AA subchronic treatment of adult rats leads to remodeling of islet of Langerhans characterized by alpha cell expansion and beta cell mass reduction.
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Kumar J, Das S, Teoh SL. Dietary Acrylamide and the Risks of Developing Cancer: Facts to Ponder. Front Nutr 2018; 5:14. [PMID: 29541638 PMCID: PMC5835509 DOI: 10.3389/fnut.2018.00014] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 02/12/2018] [Indexed: 12/18/2022] Open
Abstract
Acrylamide (AA) is a water soluble white crystalline solid commonly used in industries. It was listed as an industrial chemical with potential carcinogenic properties. However to date, AA was used to produce polyacrylamide polymer, which was widely used as a coagulant in water treatment; additives during papermaking; grouting material for dams, tunnels, and other underground building constructions. AA in food could be formed during high-temperature cooking via several mechanisms, i.e., formation via acrylic acid which may be derived from the degradation of lipid, carbohydrates, or free amino acids; formation via the dehydration/decarboxylation of organic acids (malic acid, lactic acid, and citric acid); and direct formation from amino acids. The big debate is whether this compound is toxic to human beings or not. In the present review, we discuss the formation of AA in food products, its consumption, and possible link to the development of any cancers. We discuss the body enzymatic influence on AA and mechanism of action of AA on hormone, calcium signaling pathways, and cytoskeletal filaments. We also highlight the deleterious effects of AA on nervous system, reproductive system, immune system, and the liver. The present and future mitigation strategies are also discussed. The present review on AA may be beneficial for researchers, food industry, and also medical personnel.
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Affiliation(s)
- Jaya Kumar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Srijit Das
- Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Seong Lin Teoh
- Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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Zhao M, Wang P, Li D, Shang J, Hu X, Chen F. Protection against neo-formed contaminants (NFCs)-induced toxicity by phytochemicals. Food Chem Toxicol 2017; 108:392-406. [DOI: 10.1016/j.fct.2017.01.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/27/2016] [Accepted: 01/25/2017] [Indexed: 01/18/2023]
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Tran NL, Barraj LM, Collinge S. Reduction in Dietary Acrylamide Exposure-Impact of Potatoes with Low Acrylamide Potential. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2017; 37:1754-1767. [PMID: 27866376 DOI: 10.1111/risa.12709] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 08/01/2016] [Accepted: 08/14/2016] [Indexed: 06/06/2023]
Abstract
Acrylamide forms primarily from a reaction between reducing sugars (e.g., glucose and fructose) and an amino acid (asparagine, Asn) formed naturally in foods, including potatoes. This reaction occurs when carbohydrate-rich foods are heated at temperatures above 120 °C. Multiple potato varieties were transformed with potato genomic DNA that results in down-regulation of the expression of the asparagine synthetase-1 gene (Asn1), significantly reducing synthesis of free Asn, and consequently lowering the potential to form acrylamide during cooking. These potatoes with low acrylamide potential (LAP) were tested in agronomic trials, and processed into French fries and potato chips. Decreased levels of acrylamide were measured in these cooked food products when derived from LAP potatoes compared with those derived from conventional potatoes. These reductions can be directly attributed to reduction in Asn levels in the LAP potatoes. The corresponding average reduction in exposure to acrylamide from French fry and potato chip consumption is estimated to be 65%, which would amount to approximately a 25% reduction in overall dietary exposure. Considering that children consume nearly three times more acrylamide than adults on a per kg body weight basis, they would experience the most impact from the reduced acrylamide associated with LAP potatoes. The potential public health impacts, in context of dietary acrylamide exposure reduction, are discussed in this study.
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Kacar S, Vejselova D, Kutlu HM, Sahinturk V. Acrylamide-derived cytotoxic, anti-proliferative, and apoptotic effects on A549 cells. Hum Exp Toxicol 2017; 37:468-474. [PMID: 28569085 DOI: 10.1177/0960327117712386] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Acrylamide is a very common compound even reaching up to our daily foods. It has been studied in a wealth of cell lines on which it proved to have various toxic effects. Among these cell lines, human lung adenocarcinoma cell line (A549) is one of that on which acrylamide's toxicity has not been studied well yet. AIM We intended to determine the half maximal inhibitory concentration (IC50) dose of acrylamide and to investigate its cytotoxic, anti-proliferative and apoptotic effects on A549 cells. METHODS We determined the IC50 dose by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. Then, the mode of cell death was evaluated by flow cytometry using Annexin-V fluorescein isothiocyanate (FITC)/propidium iodide (PI) staining. Next, we performed transmission electron microscopy (TEM) and confocal microscopy analyses for morphological alterations and apoptotic indices. RESULTS According to the MTT assay results, A549 cell viability decreases proportionally with increasing acrylamide concentrations and IC50 for A549 was 4.6 mM for 24 h. Annexin-V FITC/PI assay results indicated that acrylamide induces apoptosis in 64% of the A549 cells. TEM and confocal microscopy analyses showed nuclear condensations, fragmentations, cytoskeleton laceration, and membrane blebbing, which are morphological characteristics of apoptosis. CONCLUSION Our research suggests that acrylamide causes cytotoxic, anti-proliferative, and apoptotic effects on A549 cells at 4.6 mM IC50 dose in 24 h.
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Affiliation(s)
- S Kacar
- 1 Faculty of Medicine, Department of Histology and Embryology, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - D Vejselova
- 2 Faculty of Science, Department of Biology, Anadolu University, Eskisehir, Turkey
| | - H M Kutlu
- 2 Faculty of Science, Department of Biology, Anadolu University, Eskisehir, Turkey
| | - V Sahinturk
- 1 Faculty of Medicine, Department of Histology and Embryology, Eskisehir Osmangazi University, Eskisehir, Turkey
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Shimamura Y, Iio M, Urahira T, Masuda S. Inhibitory effects of Japanese horseradish (Wasabia japonica) on the formation and genotoxicity of a potent carcinogen, acrylamide. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:2419-2425. [PMID: 27670634 DOI: 10.1002/jsfa.8055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 07/02/2016] [Accepted: 09/22/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND The formation of acrylamide (AA) in cooked foods has raised human health concerns. AA is metabolized by cytochrome P450 2E1 (CYP2E1) to glycidamide (GA), which forms DNA adducts. This study examined the inhibitory effects of wasabi (Japanese horseradish, Wasabia japonica) roots and leaves as well as their active component, allyl isothiocyanate (AIT), on the formation and genotoxicity of AA. RESULTS AA formation (51.8 ± 4.2 µg kg-1 ) was inhibited with ≥2 mg mL-1 of AIT. Wasabi roots also inhibited AA formation (∼90% reduction), but wasabi leaves were not effective at 2 mg mL-1 . Wasabi roots and leaves decreased the number of cells with micronuclei by approximately 33 and 24% respectively compared with the AA treatment group. Moreover, wasabi roots and leaves (100 mg kg-1 body weight (BW) day-1 for each) decreased AA (100 mg kg-1 BW day-1 )-induced DNA damage. The AA-induced CYP2E1 activity was decreased by 39 and 26% with wasabi roots and leaves respectively. Further, the activity of glutathione S-transferase, which catalyzes the detoxification of AA via glutathione conjugation, increased by 54 and 33% with wasabi roots and leaves respectively. CONCLUSION These results indicate that wasabi roots and leaves are effective ingredients for inhibiting the formation and genotoxicity of AA. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Yuko Shimamura
- Department of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Misako Iio
- Department of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Tomoko Urahira
- Department of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Shuichi Masuda
- Department of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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Rajeh NA, Khayyat D. Effect of the combined administration of vitamin-E and 5-aminosalicylic acid on acrylamide-induced testicular toxicity. J Taibah Univ Med Sci 2017; 12:445-454. [PMID: 31435277 PMCID: PMC6694936 DOI: 10.1016/j.jtumed.2017.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 02/28/2017] [Accepted: 03/05/2017] [Indexed: 01/23/2023] Open
Abstract
Objectives This study aimed to evaluate the comparative protective antioxidant effect of 5-aminosalicylic acid (5-ASA) and vitamin-E against acrylamide (ACR)-induced testicular toxicity in rats. Methods This study was performed at King Fahad Medical Research Centre, Jeddah, KSA. A total of 49 adult Wistar rats (250 ± 20 gm) that were 60 days old were divided into seven groups (control, ACR alone, ACR + 5-ASA, ACR + Vitamin-E, ACR + 5-ASA + Vitamin-E, Vitamin-E alone, 5-ASA alone). Acrylamide [45 mg/kg (bw)/day] and vitamin-E [200 mg/kg (bw)/day] were gavaged orally, and 5-ASA [25 mg/kg (bw)/day] were injected intra-peritoneally for five consecutive days after one day of observation. Rats were sacrificed by cervical dislocation. Histopathology of the testis, enzyme linked immunosorbent assay (ELISA) of testosterone, the lactate dehydrogenase (LDH) assay and a caudal sperm count were performed. Results Rats treated with ACR showed signs of aggression and rough coats, with reduced food and water intake. ACR treated rats showed histopathological changes in the form of a sloughed seminiferous epithelium in the tubular lumen with no multinucleated giant cells. Shrinkage of seminiferous tubules with widening of the interstitial space was also observed with atrophy and the shedding of normal mucosa. Our results indicated that maximum protection was conveyed by the combined antioxidant effect of vitamin-E and 5-ASA on testicular histopathology. Conclusion We conclude that acrylamide-induced degeneration of seminiferous tubules can be partially reversed by the administration of 5-ASA and vitamin-E and suggests restricting exposure to ACR.
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Affiliation(s)
- Nisreen A. Rajeh
- Corresponding address: Department of Anatomy, Faculty of Medicine, King Abdulaziz University Medical College, P O Box: 80215, Jeddah 21598, KSA.
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Al-Gholam MA, Nooh HZ, El-Mehi AE, El-Barbary AEM, Fokar AZE. Protective effect of rosemary on acrylamide motor neurotoxicity in spinal cord of rat offspring: postnatal follow-up study. Anat Cell Biol 2016; 49:34-49. [PMID: 27051566 PMCID: PMC4819076 DOI: 10.5115/acb.2016.49.1.34] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/26/2016] [Accepted: 02/29/2016] [Indexed: 12/17/2022] Open
Abstract
The direct interactive effects of rosemary and acrylamide on the development of motor neurons in the spinal cord remains unknown. Our goal is to confirm the protective effects of rosemary against motor neuronal degeneration induced by acrylamide in the developing postnatal rat spinal cord using a postnatal rat model. We assigned the offspring of treated female rats into control, rosemary; acrylamide group; and recovery groups. This work depended on clinical, histopathological, morphometrically, immunohistochemical and genetic methods. In the acrylamide group, we observed oxidation, motor neuron degeneration, apoptosis, myelin degeneration, neurofilament reduction, reactive gliosis. Whoever, concomitant rosemary intake and withdrawal of acrylamide modulate these effects. These findings proof that dietary rosemary can directly protect motor neuron against acrylamide toxicity in the mammalian developing spinal cord.
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Affiliation(s)
- Marwa A Al-Gholam
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
| | - Hanaa Zakaria Nooh
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
| | - Abeer E El-Mehi
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
| | - Abd El-Moneum El-Barbary
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
| | - Ahmed Zo El Fokar
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
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Gao JJ, Peng RH, Zhu B, Wang B, Wang LJ, Xu J, Sun M, Yao QH. Phytoremediation potential of Arabidopsis with reference to acrylamide and microarray analysis of acrylamide-response genes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 120:360-8. [PMID: 26112177 DOI: 10.1016/j.ecoenv.2015.05.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 05/27/2015] [Accepted: 05/29/2015] [Indexed: 05/23/2023]
Abstract
Acrylamide (ACR) is a widely used industrial chemical. However, it is a dangerous compound because it showed neurotoxic effects in humans and act as reproductive toxicant and carcinogen in many animal species. In the environment, acrylamide has high soil mobility and may travel via groundwater. Phytoremediation is an effective method to remove the environmental pollutants, but the mechanism of plant response to acrylamide remains unknown. With the purpose of assessing remediation potentials of plants for acrylamide, we have examined acrylamide uptake by the model plant Arabidopsis grown on contaminated substrates with high performance liquid chromatography (HPLC) analysis. The result revealed that acrylamide could be absorbed and degraded by Arabidopsis. Further microarray analysis showed that 527 transcripts were up-regulated within 2-days under acrylamide exposure condition. We have found many potential acrylamide-induced genes playing a major role in plant metabolism and phytoremediation.
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Affiliation(s)
- Jian-Jie Gao
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Ri-He Peng
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Bo Zhu
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Bo Wang
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Li-Juan Wang
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Jing Xu
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Miao Sun
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China
| | - Quan-Hong Yao
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, China.
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ALKarim S, ElAssouli S, Ali S, Ayuob N, ElAssouli Z. Effects of low dose acrylamide on the rat reproductive organs structure, fertility and gene integrity. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2015. [DOI: 10.1016/j.apjr.2015.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Effect of Acrylamide on Oocyte Nuclear Maturation and Cumulus Cells Apoptosis in Mouse In Vitro. PLoS One 2015; 10:e0135818. [PMID: 26275143 PMCID: PMC4537141 DOI: 10.1371/journal.pone.0135818] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 07/27/2015] [Indexed: 11/19/2022] Open
Abstract
Acrylamide (ACR) is a chemical compound with severe neurotoxicity, genotoxicity, carcinogenicity and reproductive toxicity. Recent studies showed that ACR impairs the function of reproductive organs, e.g., epididymis and testes. In vitro maturation of mouse oocyte is a sensitive assay to identify potential chemical hazard to female fertility. The aim of this study was to evaluate the adverse effects of ACR on the nuclear maturation and cumulus cells apoptosis of mouse oocytes in vitro. Cumulus–oocyte complexes were incubated in a maturation medium containing 0, 5, 10 and 20 μM of ACR. Chromosome alignment and spindle morphology of oocytes was determined by immunofluorescence and confocal microscopy. Our results showed that oocytes exposed to different doses of ACR in vitro were associated with a significant decrease of oocyte maturation, significant increase of chromosome misalignment rate, occurrence of abnormal spindle configurations, and the inhibition of oocyte parthenogenetic activation. Furthermore, apoptosis of cumulus cells was determined by TUNEL and CASPASE-3 assay. Results showed that apoptosis in cumulus cells was enhanced and the expression of CASPASE-3 was increased after cumulus–oocyte complexes were exposed to ACR. Therefore, ACR may affect the nuclear maturation of oocytes via the apoptosis of cumulus cells in vitro.
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Lebda MA, Gad SB, Rashed RR. The effect of lipoic acid on acrylamide-induced neuropathy in rats with reference to biochemical, hematological, and behavioral alterations. PHARMACEUTICAL BIOLOGY 2015; 53:1207-1213. [PMID: 25853975 DOI: 10.3109/13880209.2014.970288] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Acrylamide (ACR) is a well-known neurotoxicant and carcinogenic agent which poses a greater risk for human and animal health. OBJECTIVE The present study evaluates the beneficial effects of α-lipoic acid (LA) on ACR-induced neuropathy. MATERIALS AND METHODS A total of 40 male rats were divided into four groups: a placebo group; LA-treated group, administered orally 1% (w/w) LA mixed with diet; ACR-treated group, given 0.05% (w/v) ACR dissolved in drinking water; and LA + ACR-treated group, given LA 1% 7 d before and along with ACR 0.05% for 21 d. After 28 d, blood samples were collected, the rats were decapitated, and the tissues were excised for the measurement of brain biomarkers, antioxidant status, and hematological analysis. Also, the gait score of rats was evaluated. RESULTS ACR-exposed rats exhibited abnormal gait deficits with significant (p < 0.05) decline in acetylcholine esterase (AChE) and creatine kinase in serum and brain tissues, respectively. However, the lactate dehydrogenase activity was increased in serum by 123%, although it decreased in brain tissues by -74%. ACR significantly (p < 0.05) increased the malondialdehyde level by 273% with subsequent depletion of glutathione S-transferase (GST), glutathione peroxidase (GPx), and glutathione reductase (GR) activities and reduced the glutathione (GSH) level in brain tissue. Interestingly, LA significantly (p < 0.05) improved brain enzymatic biomarkers, attenuated lipid peroxidation (LPO), and increased antioxidant activities compared with the ACR-treated group. DISCUSSION AND CONCLUSION These results suggested that LA may have a role in the management of ACR-induced oxidative stress in brain tissues through its antioxidant activity, attenuation of LPO, and improvement of brain biomarkers.
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Abstract
The mechanism underlying acrylamide-induced neurotoxicity remains controversial. Previous studies have focused on acrylamide-induced toxicity in adult rodents, but neurotoxicity in weaning rats has not been investigated. To explore the neurotoxic effect of acrylamide on the developing brain, weaning rats were gavaged with 0, 5, 15, and 30 mg/kg acrylamide for 4 consecutive weeks. No obvious neurotoxicity was observed in weaning rats in the low-dose acrylamide group (5 mg/kg). However, rats from the moderate- and high-dose acrylamide groups (15 and 30 mg/kg) had an abnormal gait. Furthermore, biochemical tests in these rats demonstrated that glutamate concentration was significantly reduced, and γ-aminobutyric acid content was significantly increased and was dependent on acrylamide dose. Immunohistochemical staining showed that in the cerebral cortex, γ-aminobutyric acid, glutamic acid decarboxylase and glial fibrillary acidic protein expression increased remarkably in the moderate- and high-dose acrylamide groups. These results indicate that in weaning rats, acrylamide is positively associated with neurotoxicity in a dose-dependent manner, which may correlate with upregulation of γ-aminobutyric acid and subsequent neuronal degeneration after the initial acrylamide exposure.
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Affiliation(s)
- Su-Min Tian
- School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong Province, China
| | - Yu-Xin Ma
- School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong Province, China
| | - Jing Shi
- Xiqiao People's Hospital, Foshan, Guangdong Province, China
| | - Ting-Ye Lou
- Clinical Laboratory of First Affiliated Hospital, Xinxiang Medical University, Xinxiang, Henan Province, China
| | - Shuai-Shuai Liu
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Guo-Ying Li
- School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong Province, China
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Kahkeshani N, Saeidnia S, Abdollahi M. Role of antioxidants and phytochemicals on acrylamide mitigation from food and reducing its toxicity. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2015; 52:3169-86. [PMID: 26028700 PMCID: PMC4444912 DOI: 10.1007/s13197-014-1558-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/25/2014] [Accepted: 09/08/2014] [Indexed: 01/10/2023]
Abstract
Nowadays, the presence of acrylamide in lots of fried and baked foods raises concerns due to its potential to cause toxicity and cancer in animals and human. Consequently, a number of papers have focused on evaluation of various chemicals in reduction of acrylamide in various food sources, as well as decreasing its related toxicities. In addition, plants are important sources of diverse metabolites demonstrating either possible effectiveness in acrylamide toxicity or reduction of acrylamide content in food sources. In this paper, we have criticized all relevant studies in terms of acrylamide mitigation from food by phytochemicals and antioxidants, and the influence of herbal medicines and phyto-pharmaceuticals on reduction of acrylamide toxicity in both animals and human.
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Affiliation(s)
- Niloofar Kahkeshani
- />Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 1417614411 Iran
| | - Soodabeh Saeidnia
- />Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 1417614411 Iran
- />Division of Pharmacy, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Canada
| | - Mohammad Abdollahi
- />Department of Toxicology and Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, 1417614411 Iran
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Li J, Li D, Yang Y, Xu T, Li P, He D. Acrylamide induces locomotor defects and degeneration of dopamine neurons in Caenorhabditis elegans. J Appl Toxicol 2015; 36:60-7. [PMID: 25876170 DOI: 10.1002/jat.3144] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 01/19/2015] [Accepted: 02/04/2015] [Indexed: 01/30/2023]
Abstract
Acrylamide can form in foods during the cooking process and cause multiple adverse effects. However, the neurotoxicity and mechanisms of acrylamide have not been fully elucidated. In Caenorhabditis elegans, we showed that 48 h exposure to 10-625 mg l(-1) acrylamide resulted in a significant decline in locomotor frequency of body bending, head thrashing and pharynx pumping. In addition, acrylamide exposure reduced crawling speeds and changed angles of body bending. It indicates that acrylamide induces locomotor defects, along with parkinsonian-like movement impairment, including bradykinesia and hypokinesia. Acrylamide also affected chemotaxis plasticity and reduced learning ability. Using transgenic nematodes, we found that acrylamide induced downexpression of P(dat-1) and led to the degeneration of dopaminergic neurons. Moreover, the enhanced expression of unc-54, encoding a subunit of α-synuclein was found. It illustrates that acrylamide is efficient in inducing crucial parkinsonian pathology, including dopaminergic damage and α-synuclein aggregation. These findings suggest the acrylamide-induced locomotor defects and neurotoxicity are associated with Parkinson's disease.
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Affiliation(s)
- Jia Li
- Laboratory of Toxicology, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, Shanghai, People's Republic of China
| | - Dan Li
- Laboratory of Toxicology, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, Shanghai, People's Republic of China
| | - Yongsheng Yang
- Laboratory of Toxicology, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, People's Republic of China
| | - Tiantian Xu
- Laboratory of Toxicology, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, Shanghai, People's Republic of China
| | - Ping Li
- Laboratory of Toxicology, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, Shanghai, People's Republic of China
| | - Defu He
- Laboratory of Toxicology, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, Shanghai, People's Republic of China
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30
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Lee CK, Kang SG, Lee JT, Lee SW, Kim JH, Kim DH, Son BC, Kim KH, Suh CH, Kim SY, Park YB. Effects of perfluorooctane sulfuric acid on placental PRL-family hormone production and fetal growth retardation in mice. Mol Cell Endocrinol 2015; 401:165-72. [PMID: 25449418 DOI: 10.1016/j.mce.2014.10.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 10/29/2014] [Accepted: 10/31/2014] [Indexed: 11/29/2022]
Abstract
Perfluorooctane sulfuric acid (PFOS) is a persistent organic pollutant, causes fetal growth retardation but the mechanism is still unclear. This study focused on PFOS-induced toxicity such as placental trophoblast cell histopathological changes, endocrine function (i.e., prolactin (PRL)-family hormone production) and subsequent fetal growth retardation in mice. Maternal body weight gain, placental and fetal weights were significantly decreased in proportion to PFOS dosage. Placental efficiency (fetal weight/placental weight) was significantly reduced dose-dependently. Necrotic changes were observed in PFOS-treated placental tissues, and the area of injury increased dose-dependently. Finally, mRNA levels and maternal serum concentrations of the PRL-family hormones (mPL-II, mPLP-Cα, mPLP-K) were significantly reduced dose-dependently. In addition, the changing pattern between PRL-family hormone concentrations and fetal body weight was positively correlated. These results suggest that gestational PFOS treatment induces placental histopathological changes and disruption of endocrine function, finally may lead to fetal growth retardation in mice.
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Affiliation(s)
- Chae Kwan Lee
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Sung Goo Kang
- School of Biotechnology and Biomedical Sciences, Inje University, Kimhae 621-749, Republic of Korea.
| | - Jong Tae Lee
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Soo-Woong Lee
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Jeong Ho Kim
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Dae Hwan Kim
- Department of Occupational and Environmental Medicine, Inje University Haeundae Paik Hospital, Busan 621-896, Republic of Korea
| | - Byung Chul Son
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Kun Hyung Kim
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Chun Hui Suh
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Se Yeong Kim
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, Busan 614-735, Republic of Korea
| | - Yeong Beom Park
- Department of Food Processing and Bakery, Gangwon Provincial College, Gangnung Republic of Korea 210-804
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Huang CCJ, Wu CF, Shih WC, Luo YS, Chen MF, Li CM, Liou SH, Chung WS, Chiang SY, Wu KY. Potential Association of Urinary N7-(2-Carbamoyl-2-hydroxyethyl) Guanine with Dietary Acrylamide Intake of Smokers and Nonsmokers. Chem Res Toxicol 2014; 28:43-50. [DOI: 10.1021/tx500265p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chih-Chun Jean Huang
- Department
of Food Science, National Pingtung University of Science and Technology, Neipu, Pingtung 91201, Taiwan
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Chia-Fang Wu
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
- Graduate
Institute of Occupational Safety and Health and Department of Occupational
Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Chung Shih
- Department of Public Health & Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
| | - Yu-Syuan Luo
- Department of Public Health & Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
| | - Ming-Feng Chen
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Chien-Ming Li
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Saou-Hsing Liou
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Wen-Sheng Chung
- Department
of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Su-Yin Chiang
- School of
Chinese Medicine, China Medical University, Taichung 404, Taiwan
| | - Kuen-Yuh Wu
- Department of Public Health & Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
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32
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Yassa HA, George SM, Refaiy AERM, Moneim EMA. Camellia sinensis (green tea) extract attenuate acrylamide induced testicular damage in albino rats. ENVIRONMENTAL TOXICOLOGY 2014; 29:1155-1161. [PMID: 23364758 DOI: 10.1002/tox.21846] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Revised: 12/11/2012] [Accepted: 12/25/2012] [Indexed: 06/01/2023]
Abstract
UNLABELLED Acrylamide is a proved toxin for testicular function, found in food when heated for long period of time. Green tea (Camellia sinensis) is a potent antioxidant; the aim of this study was to investigate the protective effect of green tea extract against the toxic effects of acrylamide in rat testes. METHODS acrylamide was administered orally to rats in different doses and also the extract of green tea was administered orally to different groups of animals in combination with the acrylamide. The weight of animals, testosterone hormone level and histopathological effect upon testicles were evaluated. RESULTS Testosterone hormone level in serum, and histopathological findings were significantly improved with the co-administration of green tea extract with the acrylamide. Green tea extract reversed all the toxic effects of acrylamide even in high dose for long period (90 days). CONCLUSION Green tea extract is a potent antioxidant antidote for the acrylamide toxic effects upon testicular function.
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Affiliation(s)
- Heba A Yassa
- Forensic Medicine and Clinical Toxicology department, Faculty of Medicine, Assiut University, Egypt
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Grünwald S, Gurmai AM, Schuierer K, Boll M, Wenzel U. The red flour beetle Tribolium castaneum allows for the convenient determination of fitness and survival as a measure of toxic effects of the food contaminant acrylamide. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:1826-33. [PMID: 25265133 DOI: 10.1080/19440049.2014.957737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Acrylamide is a toxic ingredient generated as a by-product of the Maillard reaction in starchy foods processed at temperatures above 120°C. Here we used the red flour beetle Tribolium castaneum as a model organism to test the effects of acrylamide on fitness and survival. Beetles were fed on flour spiked with acrylamide between 0.5% and 10% at 32°C over 2 weeks. Fitness of the beetles was tested by measuring the running distance and survival was recorded after 2 weeks of feeding at increased temperatures at 42°C. Both parameters were dose-dependent reduced by acrylamide. Knockdown of gene homologues of ahr, the arylhydrocarbon receptor, and of nrf-2, the nuclear factor erythroid 2-related factor 2, both reduced fitness and survival. Application of 0.5% acrylamide under knockdown of each factor further reduced fitness and survival, suggesting that ahr and nrf-2 are important for an adequate response to the toxicant. RNA-interference for ahr blocked completely the increase in nrf-2 mRNA levels, suggesting that the actions of ahr on acrylamide detoxification are mediated via Nrf-2.
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Affiliation(s)
- Stefanie Grünwald
- a Molecular Nutrition Research, Interdisciplinary Research Center , Justus-Liebig-University of Giessen , Giessen , Germany
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34
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Pedreschi F, Mariotti MS, Granby K. Current issues in dietary acrylamide: formation, mitigation and risk assessment. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:9-20. [PMID: 23939985 DOI: 10.1002/jsfa.6349] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 08/02/2013] [Accepted: 08/12/2013] [Indexed: 05/07/2023]
Abstract
Acrylamide (AA) is known as a neurotoxin in humans and it is classified as a probable human carcinogen by the International Agency of Research on Cancer. AA is produced as by-product of the Maillard reaction in starchy foods processed at high temperatures (>120 °C). This review includes the investigation of AA precursors, mechanisms of AA formation and AA mitigation technologies in potato, cereal and coffee products. Additionally, most relevant issues of AA risk assessment are discussed. New technologies tested from laboratory to industrial scale face, as a major challenge, the reduction of AA content of browned food, while still maintaining its attractive organoleptic properties. Reducing sugars such as glucose and fructose are the major contributors to AA in potato-based products. On the other hand, the limiting substrate of AA formation in cereals and coffee is the free amino acid asparagine. For some products the addition of glycine or asparaginase reduces AA formation during baking. Since, for potatoes, the limiting substrate is reducing sugars, increases in sugar content in potatoes during storage then introduce some difficulties and potentially quite large variations in the AA content of the final product. Sugars in potatoes may be reduced by blanching. Levels of AA in different foods show large variations and no general upper limit is easily applicable, since some formation will always occur. Current policy is that practical measures should be taken voluntarily to reduce AA formation in vulnerable foods since AA is considered a health risk at the concentrations found in foods.
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Affiliation(s)
- Franco Pedreschi
- Departamento de Ingeniería Química y Bioprocesos, Pontificia Universidad Católica de Chile, Santiago, Chile; ASIS-UC Interdisciplinary Research Program on Tasty and Healthy Foods, Pontificia Universidad Catoĺica de Chile, Santiago, Chile
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35
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El-Bakry AM, Abdul-Hamid M, Allam A. Prenatal and perinatal exposure of acrylamide disrupts the development of spinal cord in rats. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/wjns.2013.31003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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36
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LoPachin RM, Gavin T. Molecular mechanism of acrylamide neurotoxicity: lessons learned from organic chemistry. ENVIRONMENTAL HEALTH PERSPECTIVES 2012; 120:1650-7. [PMID: 23060388 PMCID: PMC3548275 DOI: 10.1289/ehp.1205432] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 09/24/2012] [Indexed: 05/21/2023]
Abstract
BACKGROUND Acrylamide (ACR) produces cumulative neurotoxicity in exposed humans and laboratory animals through a direct inhibitory effect on presynaptic function. OBJECTIVES In this review, we delineate how knowledge of chemistry provided an unprecedented understanding of the ACR neurotoxic mechanism. We also show how application of the hard and soft, acids and bases (HSAB) theory led to the recognition that the α,β-unsaturated carbonyl structure of ACR is a soft electrophile that preferentially forms covalent bonds with soft nucleophiles. METHODS In vivo proteomic and in chemico studies demonstrated that ACR formed covalent adducts with highly nucleophilic cysteine thiolate groups located within active sites of presynaptic proteins. Additional research showed that resulting protein inactivation disrupted nerve terminal processes and impaired neurotransmission. DISCUSSION ACR is a type-2 alkene, a chemical class that includes structurally related electrophilic environmental pollutants (e.g., acrolein) and endogenous mediators of cellular oxidative stress (e.g., 4-hydroxy-2-nonenal). Members of this chemical family produce toxicity via a common molecular mechanism. Although individual environmental concentrations might not be toxicologically relevant, exposure to an ambient mixture of type-2 alkene pollutants could pose a significant risk to human health. Furthermore, environmentally derived type-2 alkenes might act synergistically with endogenously generated unsaturated aldehydes to amplify cellular damage and thereby accelerate human disease/injury processes that involve oxidative stress. CONCLUSIONS These possibilities have substantial implications for environmental risk assessment and were realized through an understanding of ACR adduct chemistry. The approach delineated here can be broadly applied because many toxicants of different chemical classes are electrophiles that produce toxicity by interacting with cellular proteins.
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Affiliation(s)
- Richard M LoPachin
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York 10467 , USA.
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37
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Arribas-Lorenzo G, Morales FJ. Recent Insights in Acrylamide as Carcinogen in Foodstuffs. ADVANCES IN MOLECULAR TOXICOLOGY VOLUME 6 2012. [DOI: 10.1016/b978-0-444-59389-4.00005-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Suh CH, Cho NK, Lee CK, Lee CH, Kim DH, Kim JH, Son BC, Lee JT. Perfluorooctanoic acid-induced inhibition of placental prolactin-family hormone and fetal growth retardation in mice. Mol Cell Endocrinol 2011; 337:7-15. [PMID: 21241770 DOI: 10.1016/j.mce.2011.01.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 01/06/2011] [Accepted: 01/10/2011] [Indexed: 10/18/2022]
Abstract
Perfluorooctanoic acid (PFOA) is a persistent pollutant worldwide and even found in human cord blood and breast milk. Some animal studies have reported that PFOA causes developmental toxicity such as fetal weight loss, but the mechanism is still unclear. This study focused on developmental toxicity of PFOA, particularly impacts of PFOA on placental endocrine function such as placental prolactin (PRL)-family hormone gene expression and fetal growth in mouse. Time-mated CD-1 mice were dosed by gavage with 0, 2, 10 and 25 mg/kg B.W/day of PFOA (n-10) dissolved with de-ionized water from gestational day (GD) 11-16. During treatment, body weight of each pregnant mouse was measured daily. On day 16, caesarean sections were performed and developmental data were observed. Three placentas from three different pregnant mice were assigned to each of the following experiments. The mRNA levels of mouse placental lactogen (mPL)-II, prolactin like protein (mPLP)-E, -F and Pit-1α and β isotype mRNAs, a transacting factor of mPLs and mPLPs genes, were analyzed using northern blot, in situ hybridization and RT-PCR, respectively. Maternal body weight gain was significantly declined from GD 13 in the PFOA treated groups compared to control. Developmental data such as fetal and placental weights were significantly decreased in accordance with PFOA dosage. Number of dead fetuses and post-implantation losses were significantly increased in the PFOA-exposed groups. In addition, placental efficiency (fetal weight/placental weight) was significantly reduced in PFOA treated groups in accordance with PFOA dosage. Histopathologic changes were observed in placenta. Dose dependent necrotic changes were observed in both 10 mg and 25 mg PFOA treated groups. Cell frequency of glycogen trophoblast cell and parietal trophoblast giant cell were decreased dose dependently in the junctional zone. In the labyrinth zone, sinusoidal trophoblast giant cell frequency was decreased in the 25 mg PFOA treated group. Also, morphological change such as crushed nuclear (atrophy) of trophoblast cells was observed in 25 mg PFOA treated group. Finally, mRNA levels of the mPL-II, mPLP-E, -F and Pit-1α and β were significantly reduced in the PFOA treated groups dose dependently. In addition, the changing pattern between mPL-II, mPLP-E, -F mRNA levels and fetal body weight showed positive relationship. In conclusion, the inhibitory effects of PFOA on the placental prolactin-family hormone genes expression may be secondary effects to insufficient trophoblast cell type differentiation and/or increased trophoblast cell necrosis. The impacts of PFOA on placental development and endocrine function reduced the placental efficiency and partly contributed to the fetal growth retardation in the mouse.
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Affiliation(s)
- Chun Hui Suh
- Institute of Environmental and Occupational Medicine & Department of Occupational and Environmental Medicine, College of Medicine, Inje University, South Korea
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Takami S, Imai T, Cho YM, Ogawa K, Hirose M, Nishikawa A. Juvenile rats do not exhibit elevated sensitivity to acrylamide toxicity after oral administration for 12 weeks. J Appl Toxicol 2011; 32:959-67. [DOI: 10.1002/jat.1686] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2010] [Revised: 03/10/2011] [Accepted: 03/11/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Shigeaki Takami
- Division of Pathology; National Institute of Health Sciences; 1-18-1 Kamiyoga, Setagaya-ku; Tokyo; 158-8501; Japan
| | | | - Young-Man Cho
- Division of Pathology; National Institute of Health Sciences; 1-18-1 Kamiyoga, Setagaya-ku; Tokyo; 158-8501; Japan
| | - Kumiko Ogawa
- Division of Pathology; National Institute of Health Sciences; 1-18-1 Kamiyoga, Setagaya-ku; Tokyo; 158-8501; Japan
| | - Masao Hirose
- Division of Pathology; National Institute of Health Sciences; 1-18-1 Kamiyoga, Setagaya-ku; Tokyo; 158-8501; Japan
| | - Akiyoshi Nishikawa
- Division of Pathology; National Institute of Health Sciences; 1-18-1 Kamiyoga, Setagaya-ku; Tokyo; 158-8501; Japan
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40
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Koyama N, Yasui M, Kimura A, Takami S, Suzuki T, Masumura K, Nohmi T, Masuda S, Kinae N, Matsuda T, Imai T, Honma M. Acrylamide genotoxicity in young versus adult gpt delta male rats. Mutagenesis 2011; 26:545-9. [PMID: 21441395 DOI: 10.1093/mutage/ger014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The recent discovery that the potent carcinogen acrylamide (AA) is present in a variety of fried and baked foods raises health concerns, particularly for children, because AA is relatively high in child-favoured foods such as potato chips and French fries. To compare the susceptibility to AA-induced genotoxicity of young versus adult animals, we treated 3- and 11-week-old male gpt delta transgenic F344 rats with 0, 20, 40 or 80 p.p.m. AA via drinking water for 4 weeks and then examined genotoxicity in the bone marrow, liver and testis. We also analysed the level of N7-(2-carbamoyl-2-hydroxyethyl)-guanine (N7-GA-Gua), the major DNA adduct induced by AA, in the liver, testis and mammary gland. At 40 and 80 p.p.m., both age groups yield similar results in the comet assay in liver; but at 80 p.p.m., the bone marrow micronucleus frequency and the gpt-mutant frequency in testis increased significantly only in the young rats, and N7-GA-Gua adducts in the testis was significantly higher in the young rats. These results imply that young rats are more susceptible than adult rats to AA-induced testicular genotoxicity.
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Affiliation(s)
- Naoki Koyama
- Division of Genetics and Mutagenesis, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
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Allam A, El-Ghareeb AA, Abdul-Hamid M, Baikry A, Sabri MI. Prenatal and perinatal acrylamide disrupts the development of cerebellum in rat: Biochemical and morphological studies. Toxicol Ind Health 2011; 27:291-306. [DOI: 10.1177/0748233710386412] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Acrylamide is known to cause neurotoxicity in the experimental animals and humans. The literature on its neurotoxic effect in the adult animals is huge, but the effect of acrylamide on the embryonic and postnatal development is relatively less understood. The present study examined its effects on the development of external features and cerebellum in albino rats. Acrylamide was orally administered to non-anesthetized pregnant females by gastric intubation 10 mg/kg/day. The animals were divided into three groups as follows. (1) Group A, newborn from control animals; (2) Group B; newborns from mothers treated with acrylamide from day 7 (D7) of gestation till birth (prenatal intoxicated group); (3) Group C; newborns from mothers treated with acrylamide from D7 of gestation till D28 after birth (perinatally intoxicated group). Acrylamide administered either prenatally or perinatally has been shown to induce significant retardation in the newborns’ body weights development, increase of thiobarbituric acid-reactive substances (TBARS) and oxidative stress (significant reductions in glutathione reduced [GSH], total thiols, superoxide dismutase [SOD] and peroxidase activities) in the developing cerebellum. Acrylamide treatment delayed the proliferation in the granular layer and delayed both cell migration and differentiation. Purkinje cell loss was also seen in acrylamide-treated animals. Ultrastructural studies of Purkinje cells in the perinatal group showed microvacuolations and cell loss. The results of this study show that prenatal and perinatal acrylamide or its metabolites disrupts the biochemical machinery, cause oxidative stress and induce structural changes in the developing rat cerebellum.
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Affiliation(s)
- A. Allam
- Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt,
| | - AA El-Ghareeb
- Department of Zoology, Faculty of Science, Cairo University, Cairo, Egypt
| | - M. Abdul-Hamid
- Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - A. Baikry
- Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - MI Sabri
- Center for Research on Occupational and Environmental Toxicology, Oregon Health & Science University, Portland Oregon, USA
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Kermani-Alghoraishi M, Anvari M, Talebi AR, Amini-Rad O, Ghahramani R, Miresmaili SM. The effects of acrylamide on sperm parameters and membrane integrity of epididymal spermatozoa in mice. Eur J Obstet Gynecol Reprod Biol 2010; 153:52-5. [DOI: 10.1016/j.ejogrb.2010.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 05/19/2010] [Accepted: 07/02/2010] [Indexed: 10/19/2022]
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43
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Rayburn JR, Friedman M. L-cysteine, N-acetyl-L-cysteine, and glutathione protect Xenopus laevis embryos against acrylamide-induced malformations and mortality in the frog embryo teratogenesis assay. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:11172-11178. [PMID: 20873821 DOI: 10.1021/jf1023998] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Dietary acrylamide is largely derived from heat-induced reactions between the amino group of the free amino acid asparagine and carbonyl groups of glucose and fructose during heat processing (baking, frying) of plant-derived foods such as potato fries and cereals. After consumption, acrylamide is absorbed into the circulation and is then distributed to various organs, where it can react with DNA, neurons, hemoglobin, and essential enzymes. In the present study, we explored the potential of L-cysteine (CySH), N-acetyl-L-cysteine (NAC), reduced glutathione (GSH), and the amino acid glycine (Gly) to protect frog embryos against acrylamide-induced developmental toxicity in the frog embryo teratogenesis assay - Xenopus (FETAX). To test the antiteratogenic potential, based on concentration-response study ranging from 0.07 to 4.22 mM acrylamide in FETAX solution (pH 8.1), we selected concentrations of acrylamide that induced 100% malformations and mortality. At the end of 96 h, we counted survivors and malformed embryos and measured embryo length. The data show that CySH, NAC, and GSH protected the embryos against acrylamide induced malformations and mortality to different degrees. CySH and GSH protected the embryos against both malformations and mortality, whereas NAC protected only against mortality. Gly had no protective effect. Possible mechanisms of the protective effects and the dietary significance of the results of this and related studies for food safety and human health are discussed.
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Affiliation(s)
- James R Rayburn
- Biology Department, Jacksonville State University, Jacksonville, Alabama 36265
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Abstract
Contaminants are a vast subject area of food safety and quality and can be present in our food chain from raw materials to finished products. Acrylamide, an α,β-unsaturated (conjugated) reactive molecule, can be detected as a contaminant in several foodstuffs including baby foods and infant formulas. It is anticipated that children will generally have intakes that are two to three times those of adults when expressed on a body-weight basis. Though exposure to acrylamide is inevitable, it is necessary to protect infant and children from high exposure. The present review focuses on the several adverse health effects of acrylamide including mutagenicity, genotoxicity, carcinogenicity, neurotoxicity and reproductive toxicity, and the possible outcomes of childhood exposure from baby foods and infant formulas.
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Wang RS, McDaniel LP, Manjanatha MG, Shelton SD, Doerge DR, Mei N. Mutagenicity of acrylamide and glycidamide in the testes of big blue mice. Toxicol Sci 2010; 117:72-80. [PMID: 20581126 DOI: 10.1093/toxsci/kfq190] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Acrylamide (AA) is an industrial chemical, a by-product of fried starchy foods, and a mutagen and rodent carcinogen. It can also cause damage during spermatogenesis. In this study, we investigated whether AA and its metabolite glycidamide (GA) induce mutagenic effects in the germ cells of male mice. Male Big Blue transgenic mice were administered 1.4 or 7.0mM of AA or GA in the drinking water for up to 4 weeks. Testicular cII mutant frequency (MF) was determined 3 weeks after the last treatment, and the types of the mutations in the cII gene were analyzed by DNA sequencing. The testes cII MFs in mice treated with either the low or high exposure concentrations of AA and GA were increased significantly. There was no significant difference in the cII MFs between AA and GA at the low exposure concentration. The mutation spectra in mice treated with AA (1.4mM) or GA (both 1.4 and 7.0mM) differed significantly from those of controls, but there were no significant differences in mutation patterns between AA and GA treatments. Comparison of the mutation spectra between testes and livers showed that the spectra differed significantly between the two tissues following treatment with AA or GA, whereas the mutation spectra in the two tissues from control mice were similar. These results suggest that AA possesses mutagenic effects on testes by virtue of its metabolism to GA, possibly targeting spermatogonial stem cells, but possibly via different pathways when compared mutations in liver.
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Affiliation(s)
- Rui-Sheng Wang
- Division of Genetic and Reproductive Toxicology, National Center for Toxicological Research, Jefferson, Arkansas 72079, USA
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Wang H, Huang P, Lie T, Li J, Hutz RJ, Li K, Shi F. Reproductive toxicity of acrylamide-treated male rats. Reprod Toxicol 2010; 29:225-30. [DOI: 10.1016/j.reprotox.2009.11.002] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Revised: 10/19/2009] [Accepted: 11/02/2009] [Indexed: 11/24/2022]
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Takami S, Imai T, Cho YM, Hirose M, Nishikawa A. Lack of modifying effects of prepubertal exposure to acrylamide (AA) on N-methyl-N-nitrosourea (MNU)-induced multi-organ carcinogenesis in F344 rats. J Toxicol Sci 2010; 35:57-68. [PMID: 20118625 DOI: 10.2131/jts.35.57] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Acrylamide (AA) has been reported to be formed in fried and baked foods with various concentrations, and exposure levels to AA from cooked foods in children are estimated to be higher than those in adults. In order to evaluate the carcinogenicity of AA exposure during childhood, we conducted a medium-term carcinogenicity study with prepubertal administration of AA followed by treatments of a multi-organ-targeted genotoxic carcinogen and a promoting agent for thyroid carcinogenesis in rats. A total of 36 postpartum F344 rats were given drinking water containing AA at 0, 20, 40 or 80 ppm for 3 weeks during the lactation period, and their weaned offspring received the same AA-containing water for 3 more weeks. Offspring were then injected with N-methyl-N-nitrosourea (MNU; 40 mg/kg body weight, i.p.) once at week 7 after birth. Half the animals of the 0 and 40 ppm groups were additionally treated with the anti-thyroid agent sulfadimethoxine (SDM; 125 ppm) in the drinking water thereafter. Offspring were subjected to complete necropsy at week 50. All the major organs and macroscopic abnormalities were excised and examined histopathologically. There was no significant difference in the incidences of hyperplastic and neoplastic lesions in the target organs of AA and/or MNU, such as the brain, spinal cord, pituitary gland, thyroid, adrenal glands, uterus, mammary glands, clitoral gland and tunica vaginalis. In conclusion, no significant modifying actions of AA on MNU-induced multi-organ carcinogenesis were exhibited in any organs of rats when exposed prepubertally under the present experimental conditions.
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Affiliation(s)
- Shigeaki Takami
- Division of Pathology, National Institute of Health Sciences, Tokyo.
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Ghanayem BI, Bai R, Kissling GE, Travlos G, Hoffler U. Diet-induced obesity in male mice is associated with reduced fertility and potentiation of acrylamide-induced reproductive toxicity. Biol Reprod 2009; 82:96-104. [PMID: 19696015 DOI: 10.1095/biolreprod.109.078915] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The prevalence of human obesity and related chronic disorders such as diabetes, cardiovascular diseases, and cancer is rapidly increasing. Human studies have shown a direct relationship between obesity and infertility. The objective of the current work was to examine the effect of diet-induced obesity on male fertility and the effect of obesity on susceptibility to chemical-induced reproductive toxicity. From 5 to 30 wk of age, genetically intact male C57Bl/6J mice were fed a normal diet or one in which 60% of the kilocalories were from lard. Obese mice exhibited significant differences in the mRNA of several genes within the testes in comparison to lean males. Pparg was increased 2.2-fold, whereas Crem, Sh2b1, Dhh, Igf1, and Lepr were decreased 6.7, 1.4, 3.2, 1.6, and 7.2-fold, respectively. The fertility of male mice was compared through mating with control females. Acrylamide (AA)-induced reproductive toxicity was assessed in obese or lean males treated with water or 25 mg AA kg(-1) day(-1) via gavage for 5 days and then mated to control females. Percent body fat and weight were significantly increased in mice fed a high-fat vs. a normal diet. Obesity resulted in significant reduction in plugs and pregnancies of control females partnered with obese vs. lean males. Serum leptin and insulin levels were each approximately 5-fold higher in obese vs. age-matched lean mice. Sperm from obese males exhibited decreased motility and reduced hyperactivated progression vs. lean mice. Treatment with AA exacerbated male infertility of obese and lean mice; however, this effect was more pronounced in obese mice. Further, females partnered with AA-treated obese mice exhibited a further decrease in the percentage of live fetuses, whereas the percentage of resorptions increased. This work demonstrated that diet-induced obesity in mice caused a significant reduction in male fertility and exacerbated AA-induced reproductive toxicity and germ cell mutagenicity.
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Affiliation(s)
- Burhan I Ghanayem
- Laboratory of Pharmacology, Biostatistics Branch, and Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709, USA.
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Shuming C, Jilin F, Xichun Z. The moderating role of dark soy sauce to acrylamide-induced oxidative stress and neurophysiological perturbations in rats. Toxicol Mech Methods 2009; 19:434-40. [DOI: 10.1080/15376510903136895] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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