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Wu YH, Lai KH, Chen CC, Lai TM, Huang PW. Effect of Arsenate and p-Phenylenediamine on the Expression of Aquaporins in Cultured Human Urothelial Cells. Cureus 2023; 15:e43606. [PMID: 37719549 PMCID: PMC10504450 DOI: 10.7759/cureus.43606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Exposure to arsenic (As) or p‑phenylenediamine (PPD) can lead to dysfunction, or even cancer, in various types of organs, including the urinary bladder, yet the underlying mechanisms remain unclear. Aquaporins (AQPs) are widely expressed small water channel proteins that provide the major route for the transport of water and other small molecules across plasma membranes in diverse cell types. Altered expression of AQPs has been associated with pathologies in all major organs, including the urinary bladder. OBJECTIVE The present in vitro study was performed as a first step towards exploring the possible involvement of AQPs in As- and PPD‑induced bladder diseases. METHODS An immortalized normal human urothelial cell line was employed. Cells were exposed to different concentrations of sodium arsenate (0‑20 μM) or PPD (0‑200 μM) for 48 h. Cell viability was subsequently assessed. The mRNA and protein expression levels of AQPs (specifically, AQP3, 4, 7, 9, and 11) were analyzed using reverse transcription‑quantitative polymerase chain reaction and Western blot analyses, respectively. RESULTS The viability of the cells was decreased in a concentration-dependent manner upon exposure to arsenate. The mRNA and protein expression levels of AQP3, 4, 7, and 9 were substantially reduced, whereas the expression of AQP11 was largely unchanged. As for the experiments with PPD, treatment with increasing concentrations of PPD induced a gradual decrease in cell viability. The mRNA and protein expression levels of AQP3, 4, and 11 were generally unaltered; however, a marked reduction in the expression levels of AQP7 was observed, contrasting with a gradual concentration-dependent decrease in the expression of AQP9. CONCLUSION The importance of the differential expression profiles of the AQPs induced by arsenate and PPD requires further investigation; nevertheless, the findings of the present study suggest that AQPs have a role in As‑ and PPD‑induced bladder diseases.
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Affiliation(s)
- Yi-Hsiao Wu
- Division of Cardiovascular Surgery, Department of Surgery, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, TWN
| | - Kuan-Hung Lai
- Division of Plastic Surgery, Department of Surgery, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, TWN
| | | | - Tung-Mao Lai
- Department of Plastic Surgery, E-Da Hospital, Kaohsiung, TWN
| | - Po-Wei Huang
- Center of General Education, Shu Zen Junior College of Medicine and Management, Kaohsiung, TWN
- Division of Urology, Department of Surgery, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, TWN
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2
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Babić Ž, Hallmann S, Havmose MS, Johansen JD, John SM, Symanzik C, Uter W, Weinert P, van der Molen HF, Kezic S, Macan J, Turk R. Genotoxicity of oxidative hair dye precursors: A systematic review. Hum Exp Toxicol 2023; 42:9603271231159803. [PMID: 36879522 DOI: 10.1177/09603271231159803] [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: 03/08/2023]
Abstract
This systematic review, conducted according to the PRISMA guidelines, focuses on genotoxicity of oxidative hair dye precursors. The search for original papers published from 2000 to 2021 was performed in Medline, Web of Science, Cochrane registry, Scientific Committee on Consumer Safety of the European Commission and German MAK Commission opinions. Nine publications on genotoxicity of p-phenylenediamine (PPD) and toluene-2,5-diamine (p-toluylenediamine; PTD) were included, reporting results of 17 assays covering main genotoxicity endpoints. PPD and PTD were positive in bacterial mutation in vitro assay, and PPD tested positive also for somatic cell mutations in the Rodent Pig-a assay in vivo. Clastogenicity of PPD and PTD was revealed by in vitro chromosomal aberration assay. The alkaline comet assay in vitro showed DNA damage after PPD exposure, which was not confirmed in vivo, where PTD exhibited positive results. PPD induced micronucleus formation in vitro, and increased micronucleus frequencies in mice erythrocytes following high dose oral exposure in vivo. Based on the results of a limited number of data from the classical genotoxicity assay battery, this systematic review indicates genotoxic potential of hair dye precursors PPD and PTD, which may present an important health concern for consumers and in particular for professional hairdressers.
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Affiliation(s)
- Željka Babić
- Croatian Poison Control Centre, 118938Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Sarah Hallmann
- Department of Medical Informatics, Biometry and Epidemiology, 9171Friedrich-Alexander Universität Erlangen/Nürnberg, Erlangen, Germany
| | - Martin S Havmose
- National Allergy Research Centre, Department of Skin and Allergy, University of Copenhagen, Gentofte Hospital, Copenhagen, Denmark
| | - Jeanne D Johansen
- National Allergy Research Centre, Department of Skin and Allergy, University of Copenhagen, Gentofte Hospital, Copenhagen, Denmark
| | - Swen M John
- Department of Dermatology, Environmental Medicine and Health Theory, 9186Osnabrück University, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), 9186Osnabrück University, Osnabrück, Germany
| | - Cara Symanzik
- Department of Dermatology, Environmental Medicine and Health Theory, 9186Osnabrück University, Osnabrück, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), 9186Osnabrück University, Osnabrück, Germany
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology, 9171Friedrich-Alexander Universität Erlangen/Nürnberg, Erlangen, Germany
| | - Patricia Weinert
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), 9186Osnabrück University, Osnabrück, Germany
| | - Henk F van der Molen
- Department of Public and Occupational Health, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Sanja Kezic
- Department of Public and Occupational Health, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Jelena Macan
- Croatian Poison Control Centre, 118938Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Rajka Turk
- Croatian Poison Control Centre, 118938Institute for Medical Research and Occupational Health, Zagreb, Croatia
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Khan S, Ali A, Moinuddin, Mir AR, Khan RH, Alhumaydhi FA, Habib S. 4-Chloro-orthophenylenediamine alters DNA integrity and affects cell survival: inferences from a computational, biophysical/biochemical, microscopic and cell-based study. J Biomol Struct Dyn 2022; 40:14176-14187. [PMID: 34762004 DOI: 10.1080/07391102.2021.2001376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The deleterious impact of toxic constituents of hair dyes over the human health has gained immense attention in the recent past. Their oncogenicity, mutagenicity, role in protein modification, impact on cellular metabolism has been documented. There is little information on the mechanism of reactivity of hair dye components with the nucleic acids and its implications. This work, therefore, uses computational, biophysical/biochemical, microscopic and cell-based study to analyze the interaction of monocyclic aromatic amine and a hair dye component, 4-chloro-orthophenylenediamine (4-Cl-OPD) with the DNA, its impact on DNA structure and cell survival. The results suggest that 4-Cl-OPD binds with the DNA in minor groove of the duplex involving three base pairs preferentially the G-C residues, induces strand breaks and makes DNA thermally labile through loss of hydrogen bonding/base unstacking. 4-Cl-OPD causes fragmentation of DNA, reduction in size of the molecule, alters B-DNA conformation and disrupts its secondary structure. The modified DNA gives fragmented appearance, shows broken strands and aggregation in ultra-structural analysis. 4-Cl-OPD induces ROS generation in lymphocytes, increases the comet's average tail length and reduces the viability of lymphocytes. This study forms a base for establishing the direct toxicity of 4-Cl-OPD at the molecular and cellular level through direct production of superoxide radicalCommunicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shifa Khan
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Asif Ali
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Moinuddin
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Abdul Rouf Mir
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Fahad A Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Safia Habib
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
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Liu Z, Zhao L, Sun W, Zhang Z, Wang D, Ding D, Xie D, Bi L, Yu D. p-Phenylenediamine induces epithelial-mesenchymal transition in SV-40 immortalized human urothelial cells via the ERK5/AP-1 signaling. Toxicol Lett 2022; 371:1-8. [PMID: 36174792 DOI: 10.1016/j.toxlet.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/21/2022] [Accepted: 09/20/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE To investigate whether p-Phenylenediamine (PPD) could triggered EMT inSV-40 immortalized human urothelial cells (SV-HUC-1), and the regulation role of ERK5/AP-1 during this process. MATERIALS AND METHODS SV-HUC-1 cells were treated with different concentrations of PPD. MTT assay was employed to detect cell viability. Wound healing and transwell assay were performed to detect migrative and invasive capacity. Western blot and qRT-PCR were utilized for detecting molecular changes. ERK5 specific inhibitor was used to suppress ERK5 signaling. RESULTS Migration and invasion capacity of SV-HUC-1cells were enhanced after PPD exposure. Expression of epithelial markers E-cadherin and ZO-1 was decreased and expression of mesenchymal markers N-cadherin and vimentin was increased after being cultured with low concentrations of PPD, indicating that PPD induced EMT in PPD-cultured SV-HUC-1 cells. Meanwhile, PPD triggered activation of ERK5signaling and downstream AP-1 was activated, but no obvious influence of PPD on other sub-families of MAPK was detected. After inhibition of ERK5/AP-1, PPD-induced enhancement of migrative and invasive abilities were attenuated and expression of EMT markers was also reversed. CONCLUSION PPD may be a carcinogen, which could induce EMT in SV-40 immortalized human urothelial cells (SV-HUC-1) via activating ERK5/AP-1 signaling.
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Affiliation(s)
- Zhiqi Liu
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Li Zhao
- Department of Urology, Anhui Zhongke Gengjiu Hospital, Hefei, PR China
| | - Wei Sun
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Zhiqiang Zhang
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Daming Wang
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Demao Ding
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Dongdong Xie
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Liangkuan Bi
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China
| | - Dexin Yu
- Department of Urology, the second hospital of Anhui Medical University, Hefei 230032, PR China.
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Ali A, Moinuddin, Allarakha S, Fatima S, Ali SA, Habib S. Risk of Carcinogenicity Associated with Synthetic Hair Dyeing Formulations: A Biochemical View on Action Mechanisms, Genetic Variation and Prevention. Indian J Clin Biochem 2022; 37:399-409. [PMID: 36262790 PMCID: PMC9573846 DOI: 10.1007/s12291-022-01051-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022]
Abstract
Article tries to visualize the potential for carcinogenic trigger in humans with a preference for oxidative synthetic of hair dyeing formulations, especially which belong to the category of permanent colours. According to the International Agency for Cancer, hair dyes for personal use are not strictly classified as carcinogen to humans. However, some controversy exists that requires clarification. Some epidemiological studies support the association between the risk of cancer development and personal use of hair dyes (pooled relative risk RR = 1.50. 95% CI: 1.30-1.98). The world-wide sale of hair dyeing cosmetics have exceeded 15 billion dollars by the year 2012 and has maintained an annual growth rate of 8-10%. This raises concerns and need to be addressed. The review article briefly discusses about the different hair dye components based on their chemical nature, permanence, interaction of dye components with different parts of the hair shaft, action mechanisms, health risk assessment, associated challenges and possible alternatives. There appears variability towards the pathological changes incurred in the human system upon the use of synthetic hair formulations. This probably appears due to the presence of interindividual genetic variation of enzymes handling these xenobiotics. The redox mechanism of major hair dye components appears to be involved in the carcinogenic trigger. Most of the hair dye constituents pose serious health issues. However, we do have few better alternatives to prevent the toxicity associated with hair dye constituents without compromising the need of today's fashion statement and expectations of the youth.
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Affiliation(s)
- Asif Ali
- Department of Biochemistry, JN Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002 India
| | - Moinuddin
- Department of Biochemistry, JN Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002 India
| | | | - Shamila Fatima
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Syed Amaan Ali
- Department of Periodontics and Community Dentistry, ZA Dental College, Aligarh Muslim University, Aligarh, India
| | - Safia Habib
- Department of Biochemistry, JN Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002 India
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Wang X, Zhao X, Chen Y, Wang Q, Yang H, Xia F. Para-phenylenediamine deteriorates oocyte quality by impairing mitochondrial function. ENVIRONMENTAL TOXICOLOGY 2022; 37:1803-1813. [PMID: 35363429 DOI: 10.1002/tox.23528] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/05/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Several studies demonstrate that para-phenylenediamine (PPD) is often added to permanent oxidative hair dyes. Sub-chronic topical exposure to PPD in male rats damages their testicular function; however, little is known about the effects of PPD exposure on the female reproductive system, especially on oocyte quality. In this study, we found that PPD can affect the meiotic capacity of oocytes and their fertilization potential. In particular, PPD can damage the spindle/chromosome structure and prevent oocytes from developing and maturing normally. Furthermore, PPD exposure compromised the dynamics of cortical granules and their component, ovastacin. In addition to the protein level of Juno, the sperm receptors on the egg membrane, were substantially impaired in PPD-administered oocytes, thus leading to fertilization failure. Finally, we found that PPD exposure resulted in abnormal mitochondrial function, which led to oocyte degeneration, apoptosis, and increased ROS levels. Altogether, our study illustrates that mitochondrial dysfunction and redox perturbation are the major causes of the poor quality of oocytes exposed to PPD.
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Affiliation(s)
- Xia Wang
- Department of Gynecology and Obstetrics, Reproductive Medicine Center, The First Affiliated Hospital of Soochow University, China
- Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xi Zhao
- Institute of Reproductive Medicine, Medical School, Nantong University, Jiangsu, China
| | - Yannan Chen
- Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Qingxin Wang
- Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Hui Yang
- Department of Gynecology and Obstetrics, Reproductive Medicine Center, The First Affiliated Hospital of Soochow University, China
| | - Fei Xia
- Department of Gynecology and Obstetrics, Reproductive Medicine Center, The First Affiliated Hospital of Soochow University, China
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7
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Yu L, Zhai J, Wang Y, Geng Y, Chen X, Wen Y, Tang H, Yu R, Zhang Y, Liu X. Exposure to N-monoacetyl-p-phenylenediamine impaired ovarian function in mice. J Appl Toxicol 2021; 41:2031-2041. [PMID: 34014586 DOI: 10.1002/jat.4183] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/14/2021] [Accepted: 04/29/2021] [Indexed: 01/14/2023]
Abstract
p-Phenylenediamine (PPD) is the main constituent of permanent hair dye and is also widely used in the photographic and rubber industries. PPD and its metabolites have been shown to increase the risk of cancer (especially ovarian cancer); however, their effect on female reproduction is unclear. We investigated the effects of the PPD metabolite N-monoacetyl-PPD (MAPPD) on mouse blastocyst development and ovarian function. Sixty 8-week-old female Kunming mice were administered at 0-, 100-, and 300-mg/kg/day MPPD by gavage for 28 days. KGN (human ovarian granulosa cells) were treated with MAPPD at concentrations of 0, 50, 100, and 300 μg/ml for 48 h. The number of abnormal blastocysts increased on gestation day 3.5 in all treatment groups. Compared with the control group, in MAPPD exposed group, the number of antral follicles decreased, the levels of E2 and P4 decreased in ovarian tissue, the serum levels of E2 , P4 , luteinizing hormone (LH), and T decreased, and follicle-stimulating hormone (FSH) increased. The expression of FSH receptor (FSHR) and LH receptor (LHR) was significantly downregulated, and the level of oxidative stress was significantly increased. In KGN cells, the level of reactive oxygen species increased in a dose-dependent manner, and the mRNA levels of FSHR, LHR, and aromatase increased. These results suggest that MAPPD inhibits FSH- and LH-induced aromatase activity by causing oxidative stress, which decrease hormone levels, leading to abnormal follicle development. Meanwhile, MAPPD exposure could affect early embryonic development abnormalities by affecting the quality of ovum.
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Affiliation(s)
- Liliang Yu
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Jingwei Zhai
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Yingxiong Wang
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Yanqing Geng
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xuemei Chen
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Yixian Wen
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Hongyu Tang
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Rao Yu
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Yue Zhang
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xueqing Liu
- Joint International Research Laboratory of Reproductive and Development, Department of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China
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Xu S, Wang H, Liu Y, Zhang C, Xu Y, Tian F, Mei L. Hair chemicals may increase breast cancer risk: A meta-analysis of 210319 subjects from 14 studies. PLoS One 2021; 16:e0243792. [PMID: 33539348 PMCID: PMC7861401 DOI: 10.1371/journal.pone.0243792] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/25/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The association between personal hair dye use and breast cancer risk is currently debated. The aim of this work is to investigate the association between the use of hair care products and breast cancer risk in women. METHODS Based on the PRISMA-IPD statement, the PubMed, Embase, Cochrane Library, Web of Science, OVID and Scopus databases were used to identify eligible studies published from inception to 22 April 2020. A pooled odds ratio (OR) with a 95% confidential interval (CI) was calculated to assess this correlation via fixed- or random-effect Mantel-Haenszel models using a heterogeneity Chi2 test with a significance level of p<0.1. All statistical tests were performed using StataSE software (version 12.0). RESULTS The analyzed data comprised 14 eligible studies with 210319 unique subjects. The pooled results suggested that there was a significant association between the use of hair dyes and breast cancer occurrence (pooled OR = 1.07; 95% CI, 1.01-1.13). Regarding the individual analysis regarding the different types of hair chemicals, permanent hair dye users (pooled OR = 1.08; 95% CI, 1.03-1.14) and rinse users (pooled OR = 1.17; 95% CI, 1.02-1.35) were both found to have a significantly elevated breast cancer risk compared to natural hair subjects, whereas there was an insignificant relationship between the use of semipermanent hair dyes (pooled OR = 1.09; 95% CI, 0.92-1.28) and straighteners (pooled OR = 1.04; 95% CI, 0.96-1.14) and breast cancer risk. No impact on the overall correlation between hair dyes and breast cancer risk due to race (White vs non-White) (pooled OR = 1.05; 95% CI, 0.86-1.29), timing of use (<10 years vs ≥10 years) (pooled OR = 0.96; 95% CI, 0.85-1.08) or dye color (Darker than natural hair vs Lighter than natural hair) (pooled OR = 0.91; 95% CI, 0.62-1.32) was found. CONCLUSIONS Chemicals in hair dyes may play a role in breast carcinogenesis and increase breast cancer risk.
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Affiliation(s)
- Shaohua Xu
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
| | - Hui Wang
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
| | - Yeguo Liu
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
| | - Chengfeng Zhang
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
| | - Yang Xu
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
| | - Feng Tian
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
| | - Lin Mei
- Department of Oncology, The Second Ward, The PLA Navy Anqing Hospital, Anqing, Anhui Province, China
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9
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Woo H, Kim H, Shin S, Shin JH, Ryu D, Park D, Jung E. Rhus semialata M. extract ameliorate para-phenylenediamine-induced toxicity in keratinocytes. Toxicol Rep 2020; 8:96-105. [PMID: 33437652 PMCID: PMC7786012 DOI: 10.1016/j.toxrep.2020.12.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/15/2020] [Accepted: 12/21/2020] [Indexed: 12/27/2022] Open
Abstract
para-Phenylediamine (PPD), a major component of hair dyeing ingredients, can induce allergenic sensitization and exert mutagenic, tumorigenic and cytotoxic effect. In this study, we determined the cytotoxic effect of PPD on human keratinocytes and evaluated the protective effect of Rhus semialata M. extracts (RSE) on PPD induced cytotoxicity for the first time. We observed that RSE is a strong inhibitory agent against PPD-induced toxicity in human keratinocytes. The results indicated that RSE pretreatment significantly could suppress PPD induced cytotoxic effects, including decrease of cell viability, accumulation in subG1 phase of cells, and relocation of phosphatidylserine on keratinocytes. Also, we found that PPD caused cytotoxicity was associated with mitochondrial membrane potential loss and subsequent activation of caspase and PARP degradation. However, pretreatment of RSE showed preventive activities against PPD induced mitochondrial membrane potential loss and ROS production in keratinocytes. In conclusion, the results of present study suggest that RSE was able to protect the skin from several cytotoxic effects of PPD and could be a meaningful material in many industries using PPD.
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Key Words
- Apoptosis
- DCFH-DA, 2',7'-dichlorodihydrofluorescein diacetate
- DMEM, Dulbecco’s modified Eagle’s medium
- DMSO, Dimethyl sulfoxide
- DiOC6, 3,3'dihexyloxacarbocyanine iodide
- FBS, Fetal bovine serum
- Keratinocytes
- MTT, 3-[4,5-Dimethyl-2-thiazolyl]-2,5-diphenyl-2H-tetrazolium bromide
- Mitochondrial damage
- PI, Propidium iodide
- PPD, para-Phenylenediamine
- ROS, Reactive oxygen species
- RSE, Rhus semialata M extracts
- Rhus semialata M
- para-Phenylenediamine
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Affiliation(s)
- Hyunju Woo
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
| | - Hayeon Kim
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
| | - Seoungwoo Shin
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
| | - Jong Heon Shin
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
| | - Dehun Ryu
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
| | - Deokhoon Park
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
| | - Eunsun Jung
- BioSpectrum Life Science Institute, U-TOWER 18th FL, 767, Sinsu-Ro, Suji-Gu, Yongin-Si, Gyeonggi-Do, 16827, Republic of Korea
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10
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Wu G, Weng W, Xia P, Yan S, Zhong C, Xie L, Xie Y, Fan G. Wnt signalling pathway in bladder cancer. Cell Signal 2020; 79:109886. [PMID: 33340660 DOI: 10.1016/j.cellsig.2020.109886] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 12/17/2022]
Abstract
Bladder cancer (BC) is one of the most common tumours of the urinary system and is also known as a highly malignant tumour. In addition to conventional diagnosis and treatment methods, recent research has focused on studying the molecular mechanisms related to BC, in the hope that new, less toxic and effective targeted anticancer drugs and new diagnostic markers can be discovered. It is known that the Wingless (Wnt) signalling pathway and its related genes, proteins and other substances are involved in multiple biological processes of various tumours. Clarifying the contribution of the Wnt signalling pathway in bladder tumours will help establish early diagnosis indicators, develop new therapeutic drugs and evaluate the prognosis for BC. This review aims to summarise previous studies related to BC and the Wnt signalling pathway, with a focus on exploring the participating substances and their mechanisms in the regulation of the Wnt signalling pathway to better determine how to promote new chemotherapeutic drugs, potential therapeutic targets and diagnostic biomarkers.
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Affiliation(s)
- Guanlin Wu
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin 13125, Germany; Max Delbrück Center for Molecular Medicine (MDC) in the Helmholtz Association, Berlin 13125, Germany.
| | - Weidong Weng
- Siegfried Weller Research Institute, BG Unfallklinik Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, Tübingen D-72076, Germany.
| | - Pengfei Xia
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin 13125, Germany; Max Delbrück Center for Molecular Medicine (MDC) in the Helmholtz Association, Berlin 13125, Germany.
| | - Shixian Yan
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin 13125, Germany; Max Delbrück Center for Molecular Medicine (MDC) in the Helmholtz Association, Berlin 13125, Germany.
| | - Cheng Zhong
- Experimental and Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin 13125, Germany; Institute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin 10117, Germany.
| | - Lei Xie
- Department of Urology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China.
| | - Yu Xie
- Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine of Central South University, Hunan Cancer Hospital, Changsha, Hunan 410013, China.
| | - Gang Fan
- Department of Urology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China; Department of Urology, the Affiliated Cancer Hospital of Xiangya School of Medicine of Central South University, Hunan Cancer Hospital, Changsha, Hunan 410013, China; The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518060, China.
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11
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Para-phenylenediamine, an oxidative hair dye ingredient, increases thymic stromal lymphopoietin and proinflammatory cytokines causing acute dermatitis. Toxicol Res 2020; 36:329-336. [PMID: 33005592 DOI: 10.1007/s43188-020-00041-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/04/2020] [Accepted: 02/08/2020] [Indexed: 12/24/2022] Open
Abstract
Due to high consumption of cosmetics in modern society, people are always exposed to the risk of skin damage and complications. Para-phenylenediamine (P-PD), an ingredient of hair dye, has been reported to cause allergic contact dermatitis. However, the mechanism has not been well elucidated. Here, we identify that P-PD causes dermatitis by increasing thymic stromal lymphopoietin (TSLP) and inflammatory cytokines. Topical application of P-PD to mouse ear skin in consecutive 5 days resulted in dermatitis symptoms and increased ear thickness. TSLP production in skin was upregulated by P-PD treatment alone. In addition, P-PD-induced TSLP production was potentiated by MC903, which is an in vivo TSLP inducer. P-PD increased TSLP production in keratinocytes (KCMH-1 cells and phorbol 12-myristate 13-acetate-stimulated PAM212 cells). The production of proinflammatory cytokines such as IL-1β, IL-6, IFN-γ, and CCL2, was upregulated by P-PD treatment together with MC903. The results show that repeated exposure to P-PD causes acute contact dermatitis mediated by increasing the expression of TSLP and proinflammatory cytokines.
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12
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Yu W, Wang Y, Zhu J, Jin L, Liu B, Xia K, Wang J, Gao J, Liang C, Tao H. Autophagy inhibitor enhance ZnPc/BSA nanoparticle induced photodynamic therapy by suppressing PD-L1 expression in osteosarcoma immunotherapy. Biomaterials 2018; 192:128-139. [PMID: 30448697 DOI: 10.1016/j.biomaterials.2018.11.019] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 12/30/2022]
Abstract
Elevated expression of programmed death ligand-1 (PD-L1) on the surface of tumor cells can exhaust cytotoxic T lymphocyte cells and lead to the failure of anti-tumor immunity during the course of tumor treatment. Here, we implemented a combined regimen of tumor resection and bovine serum albumin-Zinc phthalocyanine-induced photodynamic therapy (PDT). To overcome the long-distance metastasis of osteosarcoma, we also explored the effects of PD-L1 down-regulation with PDT and the autophagy inhibitor 3-MA on osteosarcoma treatment. A dramatic anti-tumor effect induced by PDT was observed in a partial resection model, which revealed the potential clinical application of PDT during tumor resection. Meanwhile, we also confirmed the down-regulation of PD-L1 in osteosarcoma in response to PDT and 3-MA treatment, which significantly inhibited tumor growth in a model of tumor metastasis. The immunological response induced by the combination of the autophagy inhibitor and PDT suppressed osteosarcoma in vitro and in vivo, which indicated the potential application of this regimen for preventing tumor metastasis. The combination of PDT with multiple therapies has a potentially bright future as an osteosarcoma treatment strategy.
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Affiliation(s)
- Wei Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Yitian Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Jian Zhu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Libin Jin
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Bing Liu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Kaishun Xia
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Junjie Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China
| | - Jianqing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, PR China
| | - Chengzhen Liang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China.
| | - Huimin Tao
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jiefang Road, Hangzhou, 310009, Zhejiang, PR China; Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, PR China.
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13
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Chiang BJ, Chen TW, Chung SD, Lee WZ, Chien CT. Synthetic nickel-containing superoxide dismutase attenuates para-phenylenediamine-induced bladder dysfunction in rats. Oncotarget 2017; 8:105735-105748. [PMID: 29285288 PMCID: PMC5739675 DOI: 10.18632/oncotarget.22395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 10/05/2017] [Indexed: 02/01/2023] Open
Abstract
Para (p)-phenylenediamine and its toxic metabolites induce excess reactive oxygen species formation that results in bladder voiding dysfunction. We determined the effects of synthetic Ni-containing superoxide dismutase mimics and the role of oxidative stress in p-phenylenediamine-induced urinary bladder dysfunction. P-phenylenediamine (60 μg/kg/day) was intraperitoneally administered for 4 weeks to induce bladder injury in female Wistar rats. Synthetic Ni-containing superoxide dismutase mimics, WCT003 (1.5 mg/kg) and WCT006 (1.5 mg/kg), were then intraperitoneally administered for 2 weeks. Transcystometrograms were performed in urethane-anesthetized rats. The in vitro and in vivo reactive oxygen species levels and pathological changes in formalin-fixed bladder sections were evaluated. Western blotting and immunohistochemistry elucidated the pathophysiological mechanisms of oxidative stress-induced apoptosis, autophagy, and pyroptosis. P-phenylenediamine increased voiding frequency, blood and urinary bladder levels of reactive oxygen species, and neutrophil and mast cell infiltration. It also upregulated biomarkers of autophagy (LC3 II), apoptosis (poly (ADP-ribose) polymerase), and pyroptosis (Caspase 1). WCT003 and WCT006 ameliorated reactive oxygen species production, inflammation, apoptosis, autophagy, pyroptosis, and bladder hyperactivity. P-phenylenediamine increased oxidative stress, inflammatory leukocytosis, autophagy, apoptosis, and pyroptosis formation within the urinary bladder. Novel synthetic nickel-containing superoxide dismutase mimics relieved p-phenylenediamine-induced bladder inflammation and voiding dysfunction.
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Affiliation(s)
- Bing-Juin Chiang
- Department of Life Science, College of Science, National Taiwan Normal University, Taipei City 11677, Taiwan
- Department of Urology, Cardinal Tien Hospital, New Taipei City 23148, Taiwan
| | - Tien-Wen Chen
- Department of Life Science, College of Science, National Taiwan Normal University, Taipei City 11677, Taiwan
| | - Shiu-Dong Chung
- Department of Urology, Far-Eastern Memorial Hospital, New Taipei City 220, Taiwan
- Graduate Program in Biomedical Informatics, College of Informatics, Yuan-Ze University, Chungli 320, Taiwan
| | - Way-Zen Lee
- Department of Chemistry, College of Science, National Taiwan Normal University, Taipei City 11677, Taiwan
| | - Chiang-Ting Chien
- Department of Life Science, College of Science, National Taiwan Normal University, Taipei City 11677, Taiwan
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14
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Towle KM, Grespin ME, Monnot AD. Personal use of hair dyes and risk of leukemia: a systematic literature review and meta-analysis. Cancer Med 2017; 6:2471-2486. [PMID: 28925101 PMCID: PMC5633595 DOI: 10.1002/cam4.1162] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/21/2017] [Accepted: 07/24/2017] [Indexed: 12/12/2022] Open
Abstract
The objective of this study was to examine the association between personal use of hair dyes and the risk of leukemia. We conducted a systematic literature review of epidemiology studies reporting leukemia‐specific cancer risks among hair dye users, and estimated the meta‐relative risk (meta‐RR) and corresponding 95% confidence interval (95% CI) of leukemia, comparing hair dye users to nonusers. When data from all 20 studies that met the inclusion criteria were combined, ever use of hair dye was associated with a nonstatistically significant increased risk of leukemia, meta‐RR = 1.09 (95% CI: 0.97–1.22). When restricted to studies that adjusted for smoking, ever use of hair dye was not associated with leukemia, meta‐RR = 0.99 (95% CI: 0.76–1.29). A statistically significant increased risk of leukemia was associated with permanent hair dye use (meta‐RR = 1.19 [95% CI: 1.07–1.33]), dark hair dye use (meta‐RR = 1.29 [95% CI: 1.11–1.50]), hair dye use among males (meta‐RR = 1.42 [95% CI: 1.01–2.00]), hair dye use pre‐1980 (meta‐RR = 1.49 [95% CI: 1.21–1.83]), and hair dye use for ≥15 years (meta‐RR = 1.35 [95% CI: 1.13–1.62]). Overall, findings suggest that ever use of hair dye is not a significant risk factor for leukemia. Certain hair dye use characteristics were associated with a statistically significant increased risk, but further research is required to determine whether these associations truly reflect a risk of leukemia due to methodological limitations in the underlying studies.
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Affiliation(s)
- Kevin M Towle
- Cardno ChemRisk, 101 2nd St. Suite 700, San Francisco, California, 94105
| | | | - Andrew D Monnot
- Cardno ChemRisk, 101 2nd St. Suite 700, San Francisco, California, 94105
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15
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Zhang X, Chen Y, Cai G, Li X, Wang D. Carnosic acid induces apoptosis of hepatocellular carcinoma cells via ROS-mediated mitochondrial pathway. Chem Biol Interact 2017; 277:91-100. [PMID: 28918123 DOI: 10.1016/j.cbi.2017.09.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/30/2017] [Accepted: 09/08/2017] [Indexed: 01/06/2023]
Abstract
Carnosic acid (CA), an important bioactive phenolic diterpene mainly found in labiate plants, exerts various biological functions, including antioxidant, anti-inflammatory, antitumor, and neuroprotective activities. In the present study, we proved the deleterious effects of CA against hepatocellular carcinoma (HCC) in both in vitro and in vivo models. In vitro, CA significantly decreased cell viability, inhibited cell proliferation and migration, enhanced apoptosis, and increased caspase-3, -8, and -9 activities in HepG2 and SMMC-7721 cells. Specifically, CA led to a decreased mitochondrial membrane potential (MMP) and increases in intracellular reactive oxygen species (ROS) levels and apoptosis-related protein expression. Pre-incubation of HCC cells with N-Acetyl-l-cysteine (NAC), a ROS inhibitor, strongly suppressed CA-induced apoptotic phenomena, including reduced cell viability, excessive ROS levels, MMP decreases, and abnormal protein expression, suggesting an association of CA-induced apoptosis with oxidative stress-mediated mitochondrial pathways. In HepG2-and SMMC-7721-xenograft tumor mouse models, treatment with CA inhibited tumor growth and modulated apoptosis-related protein expression, confirming the anti-HCC effects of this chemical. Moreover, the CA-mediated anti-HCC effects associated with oxidative stress provide experimental evidence to support the potential use of CA as a drug therapy for HCC.
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Affiliation(s)
- Xinrui Zhang
- School of Life Sciences, Jilin University, Jilin, 130012, China.
| | - Yiling Chen
- School of Life Sciences, Jilin University, Jilin, 130012, China; Zhuhai College of Jilin University, Jilin University, Zhuhai, 519000, China; Southern Research Institute, Jilin University, Zhuhai, 519000, China.
| | - Guangsheng Cai
- School of Life Sciences, Jilin University, Jilin, 130012, China.
| | - Xin Li
- Zhuhai College of Jilin University, Jilin University, Zhuhai, 519000, China; Southern Research Institute, Jilin University, Zhuhai, 519000, China.
| | - Di Wang
- School of Life Sciences, Jilin University, Jilin, 130012, China; Zhuhai College of Jilin University, Jilin University, Zhuhai, 519000, China.
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16
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Chow ET, Mahalingaiah S. Cosmetics use and age at menopause: is there a connection? Fertil Steril 2016; 106:978-90. [PMID: 27545020 PMCID: PMC5027605 DOI: 10.1016/j.fertnstert.2016.08.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 08/08/2016] [Accepted: 08/08/2016] [Indexed: 01/09/2023]
Abstract
Cosmetics contain a vast number of chemicals, most of which are not under the regulatory purview of the Food and Drug Administration. Only a few of these chemicals have been evaluated for potential deleterious health impact: parabens, phthalates, polycyclic aromatic hydrocarbons, and siloxanes. A review of the ingredients in the best-selling and top-rated products of the top beauty brands in the world, as well as a review of highlighted chemicals by nonprofit environmental organizations, reveals 11 chemicals and chemical families of concern: butylated hydroxyanisole/butylated hydroxytoluene, coal tar dyes, diethanolamine, formaldehyde-releasing preservatives, parabens, phthalates, 1,4-dioxane, polycyclic aromatic hydrocarbons, siloxanes, talc/asbestos, and triclosan. Age at menopause can be affected by a variety of mechanisms, including endocrine disruption, failure of DNA repair, oxidative stress, shortened telomere length, and ovarian toxicity. There is a lack of available studies to make a conclusion regarding cosmetics use and age at menopause. What little data there are suggest that future studies are warranted. Women with chronic and consistent use of cosmetics across their lifespan may be a population of concern. More research is required to better elucidate the relationship and time windows of vulnerability and the effects of mixtures and combinations of products on ovarian health.
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Affiliation(s)
- Erika T Chow
- Department of Obstetrics and Gynecology, Boston University School of Medicine, Boston, Massachusetts
| | - Shruthi Mahalingaiah
- Department of Obstetrics and Gynecology, Boston University School of Medicine, Boston, Massachusetts; Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts.
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