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Lambré C, Barat Baviera JM, Bolognesi C, Chesson A, Cocconcelli PS, Crebelli R, Gott DM, Grob K, Lampi E, Mengelers M, Mortensen A, Rivière G, Silano (until 21 December 2020†) V, Steffensen I, Tlustos C, Vernis L, Zorn H, Batke M, Bignami M, Corsini E, FitzGerald R, Gundert‐Remy U, Halldorsson T, Hart A, Ntzani E, Scanziani E, Schroeder H, Ulbrich B, Waalkens‐Berendsen D, Woelfle D, Al Harraq Z, Baert K, Carfì M, Castoldi AF, Croera C, Van Loveren H. Re-evaluation of the risks to public health related to the presence of bisphenol A (BPA) in foodstuffs. EFSA J 2023; 21:e06857. [PMID: 37089179 PMCID: PMC10113887 DOI: 10.2903/j.efsa.2023.6857] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
In 2015, EFSA established a temporary tolerable daily intake (t-TDI) for BPA of 4 μg/kg body weight (bw) per day. In 2016, the European Commission mandated EFSA to re-evaluate the risks to public health from the presence of BPA in foodstuffs and to establish a tolerable daily intake (TDI). For this re-evaluation, a pre-established protocol was used that had undergone public consultation. The CEP Panel concluded that it is Unlikely to Very Unlikely that BPA presents a genotoxic hazard through a direct mechanism. Taking into consideration the evidence from animal data and support from human observational studies, the immune system was identified as most sensitive to BPA exposure. An effect on Th17 cells in mice was identified as the critical effect; these cells are pivotal in cellular immune mechanisms and involved in the development of inflammatory conditions, including autoimmunity and lung inflammation. A reference point (RP) of 8.2 ng/kg bw per day, expressed as human equivalent dose, was identified for the critical effect. Uncertainty analysis assessed a probability of 57-73% that the lowest estimated Benchmark Dose (BMD) for other health effects was below the RP based on Th17 cells. In view of this, the CEP Panel judged that an additional uncertainty factor (UF) of 2 was needed for establishing the TDI. Applying an overall UF of 50 to the RP, a TDI of 0.2 ng BPA/kg bw per day was established. Comparison of this TDI with the dietary exposure estimates from the 2015 EFSA opinion showed that both the mean and the 95th percentile dietary exposures in all age groups exceeded the TDI by two to three orders of magnitude. Even considering the uncertainty in the exposure assessment, the exceedance being so large, the CEP Panel concluded that there is a health concern from dietary BPA exposure.
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Propylparaben induces apoptotic cell death in human placental BeWo cells via cell cycle arrest and enhanced caspase-3 activity. Mol Cell Toxicol 2019. [DOI: 10.1007/s13273-019-00062-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Valokola MG, Karimi G, Razavi BM, Kianfar M, Jafarian AH, Jaafari MR, Imenshahidi M. The protective activity of nanomicelle curcumin in bisphenol A-induced cardiotoxicity following subacute exposure in rats. ENVIRONMENTAL TOXICOLOGY 2019; 34:319-329. [PMID: 30496632 DOI: 10.1002/tox.22687] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/04/2018] [Accepted: 11/13/2018] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA), an estrogenic compound, is used in manufacture of polycarbonate plastics and epoxy resins. Curcumin, the active ingredient of turmeric, is a potent protective compound against cardiac diseases. In this study the protective effect of nanomicelle curcumin on BPA-induced subchronic cardiotoxicity in rats was evaluated. Rats were divided into 6 groups including control, nanomicelle curcumin (50 mg/kg, gavage), BPA (50 mg/kg, gavage), nanomicelle curcumin (10, 25, and 50 mg/kg) plus BPA. The treatments were continued for 4 weeks. Results revealed that BPA significantly induced histophatological injuries including focal lymphatic inflammation, nuclear degenerative changes and cytoplasmic vacuolation, increased body weight, systolic and diastolic blood pressures, malondialdehyde and Creatine phosphokinase-MB level and decreased glutathione content in comparison with control group. In addition, in electrocardiographic graph, RR, QT, and PQ intervals were increased by BPA. Western blot analysis showed that BPA up-regulated phosphorylated p38 (p38-mitogen-activated protein kinase) and JNK (c-jun NH2 terminal kinases), while down-regulated phosphorylated AKT (Protein Kinase B) and ERK1/2 (extracellular signal-regulated protein kinases 1 and 2). However, nanomicelle curcumin (50 mg/kg) significantly improved these toxic effects of BPA in rat heart tissue. The results provide evidence that nanomicelle curcumin showed preventive effects on subchronic exposure to BPA induced toxicity in the heart tissue in rats.
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Affiliation(s)
- Mahmoud Gorji Valokola
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Karimi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Marjan Razavi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mostafa Kianfar
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hossein Jafarian
- Cancer Molecular Pathology Research Center, Ghaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Kim HL, Jung Y, Park J, Youn DH, Kang J, Lim S, Lee BS, Jeong MY, Choe SK, Park R, Ahn KS, Um JY. Farnesol Has an Anti-obesity Effect in High-Fat Diet-Induced Obese Mice and Induces the Development of Beige Adipocytes in Human Adipose Tissue Derived-Mesenchymal Stem Cells. Front Pharmacol 2017; 8:654. [PMID: 29033835 PMCID: PMC5627035 DOI: 10.3389/fphar.2017.00654] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/01/2017] [Indexed: 12/17/2022] Open
Abstract
Brown adipocytes dissipate energy as heat and hence have an important therapeutic capacity for obesity. Development of brown-like adipocytes (also called beige) is also another attractive target for obesity treatment. Here, we investigated the effect of farnesol, an isoprenoid, on adipogenesis in adipocytes and on the browning of white adipose tissue (WAT) as well as on the weight gain of high-fat diet (HFD)-induced obese mice. Farnesol inhibited adipogenesis and the related key regulators including peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT/enhancer binding protein α through the up-regulation of AMP-activated protein kinase in 3T3-L1 murine adipocytes and human adipose tissue-derived mesenchymal stem cells (hAMSCs). Farnesol markedly increased the expression of uncoupling protein 1 and PPARγ coactivator 1 α in differentiated hAMSCs. In addition, farnesol limited the weight gain in HFD obese mice and induced the development of beige adipocytes in both inguinal and epididymal WAT. These results suggest that farnesol could be a potential therapeutic agent for obesity treatment.
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Affiliation(s)
- Hye-Lin Kim
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Yunu Jung
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Jinbong Park
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Dong-Hyun Youn
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - JongWook Kang
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Seona Lim
- Department of Science in Korean Medicine, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Beom Su Lee
- Department of Science in Korean Medicine, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Mi-Young Jeong
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Seong-Kyu Choe
- Department of Microbiology and Center for Metabolic Function Regulation, School of Medicine, Wonkwang UniversityIksan, South Korea
| | - Raekil Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and TechnologyGwangju, South Korea
| | - Kwang Seok Ahn
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea
| | - Jae-Young Um
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Graduate School, Kyung Hee UniversitySeoul, South Korea
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Jeong MY, Park J, Youn DH, Jung Y, Kang J, Lim S, Kang MW, Kim HL, So HS, Park R, Hong SH, Um JY. Albiflorin ameliorates obesity by inducing thermogenic genes via AMPK and PI3K/AKT in vivo and in vitro. Metabolism 2017; 73:85-99. [PMID: 28732574 DOI: 10.1016/j.metabol.2017.05.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/01/2017] [Accepted: 05/26/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE Brown adipose tissue (BAT) activation has been identified as a possible target to treat obesity and to protect against metabolic diseases by increasing energy consumption. We explored whether albiflorin (AF), a natural compound, could contribute to lowering the high risk of obesity with BAT and primary brown preadipocytes in vivo and in vitro. MATERIALS/METHODS Human adipose tissue-derived mesenchymal stem cells (hAMSCs) were cultured with adipogenic differentiation media with or without AF. Male C57BL/6J mice (n=5 per group) were fed a high-fat diet (HFD) for six weeks with or without AF. Brown preadipocytes from the interscapular BAT of mice were cultured with or without AF. RESULTS In white adipogenic differentiation of hAMSCs, AF treatment significantly reduced the formation of lipid droplets and the expression of adipogenesis-related genes. In HFD-induced obese C57BL/6J mice, AF treatment significantly reduced body weight gain as well as the weights of the white adipose tissue, liver and spleen. Furthermore, AF induced the expression of genes involved in thermogenic function in BAT. In primary brown adipocytes, AF effectively stimulated the expressions of thermogenic genes and markedly up-regulated the AMP-activated protein kinase (AMPK) signaling pathway. Pretreatment with phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002 nullified the induction of the thermogenic genes by AF in primary brown adipocytes. Moreover, AF activated beige cell marker genes induced by the pharmacological activation of peroxisome proliferator-activated receptor γ in hAMSCs. CONCLUSION This study shows that AF prevents the development of obesity in hAMSCs and mice fed an HFD and that it is also capable of stimulating the differentiation of brown adipocytes through the modulation of thermogenic genes by AMPK and PI3K/AKT.
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Affiliation(s)
- Mi-Young Jeong
- Center for Metabolic Function Regulation, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Jinbong Park
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Dong-Hyun Youn
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Yunu Jung
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - JongWook Kang
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Seona Lim
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Min-Woo Kang
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Hye-Lin Kim
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Hong-Seob So
- Center for Metabolic Function Regulation, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea
| | - Raekil Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science & Technology (GIST), Dasan Bld #309, 123 Cheomdan-Gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Seung-Heon Hong
- Center for Metabolic Function Regulation, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea.
| | - Jae-Young Um
- College of Korean Medicine and BRL for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea.
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Li C, Li J, Chen Y, Zhong X, Kang M. Effect of curcumin on visfatin and zinc-α2-glycoprotein in a rat model of non-alcoholic fatty liver disease. Acta Cir Bras 2016; 31:706-713. [DOI: 10.1590/s0102-865020160110000001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 10/16/2016] [Indexed: 12/19/2022] Open
Affiliation(s)
| | | | - Yun Chen
- Southwest Medical University, China
| | | | - Min Kang
- Southwest Medical University, China
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Paper-based microfluidic device for bisphenol A based chemical reaction and image analysis. BIOCHIP JOURNAL 2015. [DOI: 10.1007/s13206-016-0104-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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