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Wan X, Cui X, Wang X, Feng M, Wei S, Yu J, Cheng S, Luo H, Hu J. Di-n-butyl phthalate induces toxicity in male fetal mouse testicular development by regulating the MAPK signaling pathway. Toxicol Appl Pharmacol 2024; 486:116933. [PMID: 38631520 DOI: 10.1016/j.taap.2024.116933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
"White pollution" has a significant impact on male reproduction. Di-n-butyl phthalate (DBP) is one of the most important factors in this type of pollution. Currently, research from international sources has demonstrated the significant reproductive toxicity of DBP. However, most of these studies have focused mainly on hormones expression at the protein and mRNA levels and the specific molecular targets of DBP and its mechanisms of action remain unclear. In this study, we established a Sprague Dawley pregnant mouse model exposed to DBP, and all male offspring were immediately euthanized at birth and bilateral testes were collected. We found through transcriptome sequencing that cell apoptosis and MAPK signaling pathway are the main potential pathways for DBP induced reproductive toxicity. Molecular biology analyses revealed a significant increase in the protein levels of JNK1(MAPK8) and BAX, as well as a significant increase in the BAX/BCL2 ratio after DBP exposure. Therefore, we propose that DBP induces reproductive toxicity by regulating JNK1 expression to activate the MAPK signaling pathway and induce reproductive cell apoptosis. In conclusion, our study provides the first evidence that the MAPK signaling pathway is involved in DBP-induced reproductive toxicity and highlights the importance of JNK1 as a potential target of DBP in inducing reproductive toxicity.
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Affiliation(s)
- Xinwei Wan
- GuiZhou University Medical College, Guiyang 550025, Guizhou Province, China; Department of Urology, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou Province, China
| | - Xudong Cui
- State key laboratory of functions and applications of medicinal plants, Guizhou medical university, Guiyang 550014, Guizhou Province, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, Guizhou Province, China
| | - Xiang Wang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou Province, China
| | - Mingyang Feng
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou Province, China
| | - Shinan Wei
- State key laboratory of functions and applications of medicinal plants, Guizhou medical university, Guiyang 550014, Guizhou Province, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, Guizhou Province, China
| | - Jia Yu
- State key laboratory of functions and applications of medicinal plants, Guizhou medical university, Guiyang 550014, Guizhou Province, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, Guizhou Province, China
| | - Sha Cheng
- State key laboratory of functions and applications of medicinal plants, Guizhou medical university, Guiyang 550014, Guizhou Province, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, Guizhou Province, China
| | - Heng Luo
- State key laboratory of functions and applications of medicinal plants, Guizhou medical university, Guiyang 550014, Guizhou Province, China; Natural Products Research Center of Guizhou Province, Guiyang 550014, Guizhou Province, China.
| | - Jianxin Hu
- GuiZhou University Medical College, Guiyang 550025, Guizhou Province, China; Department of Urology, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou Province, China.
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2
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Caballero-Mateos AM, Quesada-Caballero M, Cañadas-De la Fuente GA, Caballero-Vázquez A, Contreras-Chova F. IBD and Motherhood: A Journey through Conception, Pregnancy and Beyond. J Clin Med 2023; 12:6192. [PMID: 37834837 PMCID: PMC10573266 DOI: 10.3390/jcm12196192] [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: 08/24/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023] Open
Abstract
Inflammatory Bowel Disease (IBD) presents distinct challenges during pregnancy due to its influence on maternal health and pregnancy outcomes. This literature review aims to dissect the existing scientific evidence on pregnancy in women with IBD and provide evidence-based recommendations for clinical management. A comprehensive search was conducted across scientific databases, selecting clinical studies, systematic reviews, and other pertinent resources. Numerous studies have underscored an increased risk of complications during pregnancy for women with IBD, including preterm birth, low birth weight, neonates small for gestational age, and congenital malformations. Nevertheless, it's evident that proactive disease management before and throughout pregnancy can mitigate these risks. Continuation of IBD treatment during pregnancy and breastfeeding is deemed safe with agents like thiopurines, anti-TNF, vedolizumab, or ustekinumab. However, there's a call for caution when combining treatments due to the heightened risk of severe infections in the first year of life. For small molecules, their use is advised against in both scenarios. Effective disease management, minimizing disease activity, and interdisciplinary care are pivotal in attending to women with IBD. The emphasis is placed on the continual assessment of maternal and infant outcomes and an expressed need for further research to enhance the understanding of the ties between IBD and adverse pregnancy outcomes.
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3
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Mileo A, Chianese T, Fasciolo G, Venditti P, Capaldo A, Rosati L, De Falco M. Effects of Dibutylphthalate and Steroid Hormone Mixture on Human Prostate Cells. Int J Mol Sci 2023; 24:14341. [PMID: 37762641 PMCID: PMC10531810 DOI: 10.3390/ijms241814341] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Phthalates are a family of aromatic chemical compounds mainly used as plasticizers. Among phthalates, di-n-butyl phthalate (DBP) is a low-molecular-weight phthalate used as a component of many cosmetic products, such as nail polish, and other perfumed personal care products. DBP has toxic effects on reproductive health, inducing testicular damage and developmental malformations. Inside the male reproductive system, the prostate gland reacts to both male and female sex steroids. For this reason, it represents an important target of endocrine-disrupting chemicals (EDCs), compounds that are able to affect the estrogen and androgen signaling pathways, thus interfering with prostate homeostasis and inducing several prostate pathologies. The aim of this project was to investigate the effects of DBP, alone and in combination with testosterone (T), 17β-estradiol (E2), and both, on the normal PNT1A human prostate cell-derived cell line, to mimic environmental contamination. We showed that DBP and all of the tested mixtures increase cell viability through activation of both estrogen receptor α (ERα) and androgen receptor (AR). DBP modulated steroid receptor levels in a nonmonotonic way, and differently to endogenous hormones. In addition, DBP translocated ERα to the nucleus over different durations and for a more prolonged time than E2, altering the normal responsiveness of prostate cells. However, DBP alone seemed not to influence AR localization, but AR was continuously and persistently activated when DBP was used in combination. Our results show that DBP alone, and in mixture, alters redox homeostasis in prostate cells, leading to a greater increase in cell oxidative susceptibility. In addition, we also demonstrate that DBP increases the migratory potential of PNT1A cells. In conclusion, our findings demonstrate that DBP, alone and in mixtures with endogenous steroid hormones, acts as an EDC, resulting in an altered prostate cell physiology and making these cells more prone to cancer transformation.
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Affiliation(s)
- Aldo Mileo
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
| | - Teresa Chianese
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
| | - Gianluca Fasciolo
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
| | - Paola Venditti
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
| | - Anna Capaldo
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
| | - Luigi Rosati
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
- CIRAM, Centro Interdipartimentale di Ricerca “Ambiente”, University Federico II of Naples, Via Mezzocannone 16, 80134 Naples, Italy
| | - Maria De Falco
- Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy; (A.M.); (T.C.); (G.F.); (P.V.); (A.C.); (L.R.)
- National Institute of Biostructures and Biosystems (INBB), Viale delle Medaglie d’Oro 305, 00136 Rome, Italy
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4
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Bu H, Tang S, Liu G, Miao C, Zhou X, Yang H, Liu B. In silico, in vitro and in vivo studies: Dibutyl phthalate promotes prostate cancer cell proliferation by activating Forkhead Box M1 and remission after Natura-α pretreatment. Toxicology 2023; 488:153465. [PMID: 36828243 DOI: 10.1016/j.tox.2023.153465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 02/09/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023]
Abstract
Dibutyl phthalate (DBP) is widely used in perfumes, cosmetics, shampoos and medical devices. It is ubiquitous in the environment and greatly endangers people's health. Several studies have reported that being exposed to it can promote the development of lung cancer, breast cancer, hepatoma, and multiple myeloma. However, there are still few studies on the specific molecular mechanism and prevention methods of DBP promoting the progression of prostate cancer. This study, in silico, in vitro and in vivo, aims to explore the promoting effect of DBP on prostate cancer cell proliferation. In silico analysis, we obtained a set of DBP interactive genes by utilizing TCGA, CTD and GEO database. These genes are mainly enriched in cell cycle regulatory pathways and they have high degree of homogeneity. We found that these genes shared one transcription factor - Forkhead Box M1 (FOXM1) by performing Chip-X Enrichment Analysis (Version 3.0). FOXM1, once called the 2010 Molecule of the Year, aberrantly expressed in up to 20 kinds of tumors. In vitro experiments, we used DBP at concentrations of 10-8 M and 5 * 10-7 M to treat C4-2 and PC3 cells for 6 days, respectively. Cell viability was promoted significantly. When Natura-α was added in the background of above-mentioned concentration of DBP, this effect was significantly inhibited. In addition, we also found that DBP can interfering with the efficacy of enzalutamide therapy. The introduction of Natura-α can also reverse this phenomenon. In vivo, subcutaneous tumor formation experiments in nude mice, 800 mg/kg/day DBP can promote the growth of prostate cancer. This phenomenon was suppressed when Natura-α (100 mg/kg/day) was added. Based on the results of the above three levels, we confirmed that DBP can target FOXM1 to promote prostate cancer cell proliferation. Natura-α can reverse its cancer-promoting effect. This study provides new insights into the impact of DBP on prostate cancer.
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Affiliation(s)
- Hengtao Bu
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Sensheng Tang
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Guiting Liu
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chenkui Miao
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiang Zhou
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Haiwei Yang
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Bianjiang Liu
- Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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5
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Chen W, He C, Liu X, An S, Wang X, Tao L, Zhang H, Tian Y, Wu N, Xu P, Liao D, Liao J, Wang L, Fang D, Xiong S, Liu Y, Tian K, Li Q, Huang J, Yuan H, Chen X, Zhang L, Shen X, Zhou Y. Effects of exposure to phthalate during early pregnancy on gestational diabetes mellitus: a nested case-control study with propensity score matching. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:33555-33566. [PMID: 36480145 DOI: 10.1007/s11356-022-24454-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Owing to the complexity of phthalates (PAEs) components and the diversity of their sources, the health hazards of their metabolites to pregnant women remain unclear. This study aimed to explore the relationship between exposure to PAEs during early pregnancy and gestational diabetes mellitus (GDM) in rural pregnant women. We assessed pregnant women with (n = 338) or without (n = 3082) GDM from the ongoing Zunyi Birth Cohort. Participants' urine samples were collected to measure the levels of 10 metabolites of PAEs. GDM was diagnosed using the 75-g oral glucose tolerance test at 24-28 weeks of gestation. We adopted propensity score matching based on GDM-related factors and pregnant women's backgrounds to establish two groups of 338 patients: those with or without GDM. In the cohort, we included 5734 pregnant women; 519 of them developed GDM, yielding a GDM incidence rate of 9.05%. Urinary concentrations of monooctyl phthalate (MOP), mono-benzyl phthalate (MBzP), mono(2-ethyl-5-oxyhexyl) phthalate (MEOHP), and mono(2-ethyl-5-carboxypentyl) phthalate (MECPP) during early pregnancy were significantly associated with GDM (P < 0.05). Logistic regression models revealed that MEOHP in the urine was positively associated with GDM (odds ratio [OR] = 1.55; 95% confidence interval [CI]: 1.00-2.39). Furthermore, restricted cubic spline models revealed that urine MEOHP concentrations greater than 15.6 μg/L were positively associated with GDM, and approximately 23.5% pregnant women had urine MEOHP concentrations greater than 15.6 μg/L. Thus, approximately 23.5% of pregnant women were at the risk of developing GDM due to MEOHP, which suggested that pregnant women should reduce the use of packaged food and cosmetics to reduce the risk of GDM. However, further molecular biology experiments are required to confirm these findings and to elucidate the underlying mechanisms.
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Affiliation(s)
- Wei Chen
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Caidie He
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Xiang Liu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Songlin An
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Xia Wang
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Lin Tao
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Haonan Zhang
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Yingkuan Tian
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Nian Wu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Pei Xu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Dengqing Liao
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Juan Liao
- Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Linglu Wang
- The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Derong Fang
- Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Shimin Xiong
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Yijun Liu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Kunming Tian
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Quan Li
- Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | | | - Hongyu Yuan
- Xishui County People's Hospital, Zunyi, China
| | | | - Li Zhang
- Meitan County People's Hospital, Zunyi, China
| | - Xubo Shen
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Yuanzhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi, China.
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6
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Pregnancy in Patients with Inflammatory Bowel Diseases-A Literature Review. Life (Basel) 2023; 13:life13020475. [PMID: 36836832 PMCID: PMC9961380 DOI: 10.3390/life13020475] [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: 12/26/2022] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Abstract
In recent years, we have faced an increasing incidence of inflammatory bowel disease (IBD), especially among young people, affecting them during their reproductive years. The paucity of data and reduced knowledge regarding the evolution of the disease during pregnancy and the adverse effects of the therapy on the mother and infant increase voluntary childlessness in this group of patients. Depending on the type of IBD, severity and surgical or medical management, this can negatively affect the pregnancy. C-sections and the risk of low-birth-weight babies are higher in women with IBD, independent of active/inactive disease, while preterm birth, stillbirth and miscarriage are associated with disease activity. In the last period, medicinal therapy has evolved, and new molecules have been developed for better control of the lesions, but the effect on pregnancy and breastfeeding is still controversial. We conducted this review by studying the literature and recent research in order to have a better image of the practical management of IBD during pregnancy.
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7
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Torres J, Chaparro M, Julsgaard M, Katsanos K, Zelinkova Z, Agrawal M, Ardizzone S, Campmans-Kuijpers M, Dragoni G, Ferrante M, Fiorino G, Flanagan E, Gomes CF, Hart A, Hedin CR, Juillerat P, Mulders A, Myrelid P, O'Toole A, Rivière P, Scharl M, Selinger CP, Sonnenberg E, Toruner M, Wieringa J, Van der Woude CJ. European Crohn's and Colitis Guidelines on Sexuality, Fertility, Pregnancy, and Lactation. J Crohns Colitis 2023; 17:1-27. [PMID: 36005814 DOI: 10.1093/ecco-jcc/jjac115] [Citation(s) in RCA: 77] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Indexed: 02/02/2023]
Affiliation(s)
- Joana Torres
- Division of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal.,Division of Gastroenterology, Hospital da Luz, Lisboa, Portugal.,Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - María Chaparro
- Department of Gastroenterology, Hospital Universitario de La Princesa, IIS-Princesa, UAM, CIBEREHD, Madrid, Spain
| | - Mette Julsgaard
- Department of Hepatology & Gastroenterology, Aarhus University Hospital, Aarhus, Denmark.,Center for Molecular Prediction of Inflammatory Bowel Disease [PREDICT], Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Konstantinos Katsanos
- Department of Gastroenterology and Hepatology, University and Medical School of Ioannina, Ioannina, Greece
| | - Zuzana Zelinkova
- Department of Internal Medicine, Svet zdravia, Nemocnica Dunajska Streda, Slovakia.,Firstst Department of Internal Medicine of University Hospital and Slovak Medical University in Bratislava, Bratislava, Slovakia
| | - Manasi Agrawal
- Dr Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Center for Molecular Prediction of Inflammatory Bowel Disease [PREDICT], Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Sandro Ardizzone
- Gastrointestinal Unit, Department of Biomedical and Clinical Sciences. University of Milan, Milan, Italy
| | - Marjo Campmans-Kuijpers
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Gabriele Dragoni
- Gastroenterology Research Unit, Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy.,Gastroenterology Department, Careggi University Hospital, Florence, Italy
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium.,Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Gionata Fiorino
- Department of Gastroenterology and Digestive Endoscopy, IRCCS San Raffaele Hospital and Vita-Salute San Raffaele University, Milan, Italy
| | - Emma Flanagan
- Department of Gastroenterology, St Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
| | | | - Ailsa Hart
- Inflammatory Bowel Diseases Unit, St Mark's Hospital, Harrow, UK
| | - Charlotte Rose Hedin
- Karolinska Institutet, Department of Medicine Solna, Stockholm, Sweden.,Karolinska University Hospital, Department of Gastroenterology, Dermatovenereology and Rheumatology, Stockholm, Sweden
| | - Pascal Juillerat
- Clinic for Visceral Surgery and Medicine, Bern University Hospital, Bern, Switzerland.,Crohn's and Colitis Center, Gastroenterology Beaulieu SA, Lausanne, Switzerland
| | - Annemarie Mulders
- Department of Obstetrics and Gynaecology, Division of Obstetrics and Fetal Medicine Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Pär Myrelid
- Department of Surgery, Linköping University Hospital, Linköping, Sweden.,Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Aoibhlinn O'Toole
- Beaumont Hospital, Department of Gastroenterology, Royal College of Surgeons, Dublin, Ireland
| | - Pauline Rivière
- Gastroenterology Unit, Bordeaux University Hospital, Pessac, France
| | - Michael Scharl
- Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | | | - Elena Sonnenberg
- Charité-Universitätsmedizin Berlin, Department of Gastroenterology, Infectious Diseases and Rheumatology, Germany
| | - Murat Toruner
- Department of Gastroenterology, Ankara University School of Medicine, Ankara, Turkey
| | - Jantien Wieringa
- Department of Paediatrics, Haaglanden Medical Center, The Hague, The Netherlands.,Department of Paediatrics, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - C Janneke Van der Woude
- Department of Gastroenterology & Hepatology, Erasmus University Medical Center, Rotterdam, The Netherlands
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8
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Swanson GM, Nassan FL, Ford JB, Hauser R, Pilsner JR, Krawetz SA. Phthalates impact on the epigenetic factors contributed specifically by the father at fertilization. Epigenetics Chromatin 2023; 16:3. [PMID: 36694265 PMCID: PMC9872317 DOI: 10.1186/s13072-022-00475-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/13/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Preconception exposure to phthalates such as the anti-androgenic dibutyl-phthalate (DBP) impacts both male and female reproduction, yet how this occurs largely remains unknown. Previously we defined a series of RNAs expressly provided by sperm at fertilization and separately, and in parallel, those that responded to high DBP exposure. Utilizing both populations of RNAs, we now begin to unravel the impact of high-DBP exposure on those RNAs specifically delivered by the father. RESULTS Enrichment of RNAs altered by DBP exposure within the Molecular Signature Database highlighted cellular stress, cell cycle, apoptosis, DNA damage response, and gene regulation pathways. Overlap within each of these five pathways identified those RNAs that were specifically (≥ fivefold enriched) or primarily (≥ twofold enriched) provided as part of the paternal contribution compared to the oocyte at fertilization. Key RNAs consistently altered by DBP, including CAMTA2 and PSME4, were delivered by sperm reflective of these pathways. The majority (64/103) of overlapping enriched gene sets were related to gene regulation. Many of these RNAs (45 RNAs) corresponded to key interconnected CRREWs (Chromatin remodeler cofactors, RNA interactors, Readers, Erasers, and Writers). Modeling suggests that CUL2, PHF10, and SMARCC1 may coordinate and mechanistically modulate the phthalate response. CONCLUSIONS Mediated through a CRREW regulatory network, the cell responded to exposure presenting stressed-induced changes in the cell cycle-DNA damage-apoptosis. Interestingly, the majority of these DBP-responsive epigenetic mediators' direct acetylation or deacetylation, impacting the sperm's cargo delivered at fertilization and that of the embryo.
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Affiliation(s)
- G M Swanson
- Department of Obstetrics & Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
- Center for Molecular Medicine & Genetics, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - F L Nassan
- Biogen, Cambridge, MA, USA
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - J B Ford
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - R Hauser
- Departments of Environmental Health and Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - J R Pilsner
- Department of Obstetrics & Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, USA
| | - S A Krawetz
- Department of Obstetrics & Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.
- Center for Molecular Medicine & Genetics, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.
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9
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Golestanzadeh M, Goodarzi-Khoigani M, Shahrbanoo Daniali S, Ebrahimpour K, Zarean E, Yazdi M, Basirat Z, Kelishadi R. Association between phthalate metabolites in human amniotic fluid and offspring birth size: a sub-study of the PERSIAN birth cohort. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76970-76982. [PMID: 35676571 DOI: 10.1007/s11356-022-20839-1] [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: 01/17/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
As phthalate metabolites might cross the placenta, it is possible to find them in the amniotic fluid. This cross-sectional study aims to investigate the levels of phthalate metabolites in the amniotic fluid of a sample of Iranian women and its association with neonatal anthropometric measures. The other objective was to study the potential sources of maternal exposure to phthalates. This study was conducted from June 2019 to June 2021 in Isfahan, Iran. Pregnant women were recruited from their first trimester of pregnancy and followed up until their delivery. Amniotic fluid samples were collected from those who were assigned to have delivery by cesarean section. Overall, 158 samples of amniotic fluid were collected, of which 139 samples had sufficient volume and were free of blood. Data from 142 newborns were included in this study. Four phthalate metabolites were measured using gas chromatography-mass spectrometry (GC-MS). After extraction of phthalate metabolites, 4 phthalate metabolites including mono-butyl phthalate (MBP; normal: 0.08 ± 0.79; overweight: 0.20 ± 1.11; obese: 0.07 ± 1.07; p-value: 0.405), mono-benzyl phthalate (MBzP; normal: 7.54 ± 6.69; overweight: 7.48 ± 7.16; obese: 8.67 ± 12.75; p-value: 0.729), mono(2-ethyl-5-oxohexyl) phthalate (MEOHP; normal: 4.27 ± 6.36; overweight: 3.03 ± 8.44; obese: 3.53 ± 7.04; p-value: 0.245), and mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP; normal: 246.18 ± 189.80; overweight: 238.48 ± 200.23; obese: 287.65 ± 206.70; p-value: 0.723) were simultaneously detected in samples of maternal amniotic fluid. Our findings suggest that maternal exposure to phthalate metabolites is positively associated with in utero exposure of the developing fetus. The geometric means and medians of MBP, MBzP, MEOHP, and MEHHP of detected samples were 10.17 (9.52), 6.24 (3.47), 5.03 (11.72), and 174.79 (229.94) (μg/L), respectively. The median anthropometric measures of newborns were as follows: weight 3171.8 g, height 49.6 cm, head circumferences 34.9 cm, chest 33.3 cm, hip 31.5 cm, and arm circumferences 10.8 cm. There was no statistically significant association between phthalate metabolites concentration and newborn's anthropometric measures (p > 0.05). Future studies should focus on the collection of amniotic fluid at different trimesters and the corresponding maternal samples to better characterize the association and health impacts of these endocrine-disrupting chemicals during fetal development.
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Affiliation(s)
- Mohsen Golestanzadeh
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, 8174673461, Iran
| | - Masoomeh Goodarzi-Khoigani
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, 8174673461, Iran
| | - Seyede Shahrbanoo Daniali
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, 8174673461, Iran
| | - Karim Ebrahimpour
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elaheh Zarean
- Department of Obstetrics and Gynecology, Fetal Medicine Unit, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Yazdi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, 8174673461, Iran
| | - Zohreh Basirat
- Department of Obstetrics and Gynecology, Fetal Medicine Unit, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, 8174673461, Iran.
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10
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Grosen A, Bellaguarda E, Nersting J, Hvas CL, Liljeqvist-Soltic I, Stein A, Christensen LA, Ruderman EM, Brown CR, Schmiegelow K, Zhang JX, Kelsen J, Hanauer SB. Low-dose Methotrexate Therapy Does Not Affect Semen Parameters and Sperm DNA. Inflamm Bowel Dis 2022; 28:1012-1018. [PMID: 34463329 DOI: 10.1093/ibd/izab205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Methotrexate is widely used in inflammatory diseases during the patients' reproductive years. The effect on male fertility and sperm DNA integrity is largely unknown. We evaluated sperm DNA integrity and basic semen parameters according to the World Health Organization (WHO) in male patients with inflammatory diseases treated with methotrexate. METHODS Semen samples from 14 patients on low-dose maintenance methotrexate were compared with samples from 40 healthy volunteers. Further, 5 patients delivered samples on and off methotrexate therapy for paired comparison. Sperm DNA fragmentation index (DFI), concentration, motility, and morphology were evaluated. Blood sex hormones and methotrexate levels were measured in blood and semen. RESULTS DNA fragmentation index in methotrexate-treated patients was comparable with that in healthy volunteers (DFI, 11.5 vs 15.0; P = .06), and DFI did not change significantly on and off methotrexate in the paired samples (DFI, 12.0 vs 14.0; P = 0.35). Sperm concentration, motility, and morphology did not differ between men treated with methotrexate and healthy volunteers. Sperm progressive motility increased off therapy compared with on therapy (65.0% vs 45.0%, P = .04), but all fluctuations in progressive motility were within the WHO reference interval. All methotrexate polyglutamates1-5 were detected in blood, but only methotrexate polyglutamate1 in semen. Serum testosterone was unaffected by methotrexate therapy. CONCLUSIONS Patients treated with low-dose methotrexate have a sperm quality comparable with that of healthy volunteers, and methotrexate treatment does not increase sperm DNA fragmentation. This study does not support cryopreservation of semen before treatment initiation nor a 3-month methotrexate-free interval prior to conception.
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Affiliation(s)
- Anne Grosen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark.,Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Emanuelle Bellaguarda
- Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Jacob Nersting
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Christian Lodberg Hvas
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Adam Stein
- Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Lisbet Ambrosius Christensen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark.,Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Eric M Ruderman
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Calvin R Brown
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark.,Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - John X Zhang
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Jens Kelsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Stephen B Hanauer
- Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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11
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Hwa HL, Peng FS, Ting TT, Chen HW, Chan HY, Yang DP, Chen PC, Kuo YN, Chen PS. Monitoring Phthalates in Maternal and Cord Blood: Implications for Prenatal Exposure and Birth Outcomes. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:715-725. [PMID: 35199389 DOI: 10.1002/etc.5280] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 12/20/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Although many phthalates are endocrine-disrupting chemicals that are associated with adverse birth outcomes, the relationship between maternal phthalate exposure and birth outcomes is not yet conclusive. The objective of the present study was to investigate the association between prenatal exposure to phthalates in human maternal and cord blood and birth outcomes of the infants. Sixty-five mother-infant pairs were recruited in Taipei City and New Taipei City, and birth outcomes of the infants were recorded. Twelve phthalate metabolites were measured in maternal and cord blood samples. The mean of mono-ethyl phthalate, mono-isobutyl phthalate (MiBP), mono-n-butyl phthalate (MnBP), and mono-(2-ethylhexyl) phthalate (MEHP) was relatively higher than that of the other metabolites in both maternal and infant blood. There was a significant difference (p < 0.05) for mono-methyl phthalate (MMP) and MnBP between the maternal blood and cord blood of male infants. Mono-benzyl phthalate (MBzP), MMP, MiBP, and ∑di-2-ethylhexyl phthalate (∑DEHP) in maternal blood were inversely correlated with the anogenital index (AGI) of male infants, with a p value between 0.011 and 0.033. Mono-n-octyl phthalate, MMP, MiBP, MnBP, and MBzP were positively correlated with the AGI of female infants, with a p value between 0.001 and 0.034. Cord blood levels of MnBP, mono-(2-ethyl-5-oxohexyl)-phthalate, MEHP, and ∑DEHP were found to be inversely associated with head circumference in all the infants, adjusted for gestational age. Phthalate monoesters are potentially estrogenic and antiandrogenic chemicals. Longitudinal follow-up of the present study population could help clarify the long-term impact of phthalates on growth and the health effects of background exposure levels. Environ Toxicol Chem 2022;41:715-725. © 2022 SETAC.
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Affiliation(s)
- Hsiao-Lin Hwa
- Department and Graduate Institute of Forensic Medicine, National Taiwan University, Taipei, Taiwan
- Forensic and Clinical Toxicology Center, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Obstetrics and Gynecology, National Taiwan University Hospital, National Taiwan University College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Fu-Shiang Peng
- Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, New Taipei, Taiwan
| | - Te-Tien Ting
- School of Big Data Management, Soochow University, Taipei, Taiwan
| | - Huei-Wen Chen
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan
| | - Hsiang-Yu Chan
- Department and Graduate Institute of Forensic Medicine, National Taiwan University, Taipei, Taiwan
| | - Da-Peng Yang
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan
| | - Pau-Chung Chen
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Yun-Ning Kuo
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan
| | - Pai-Shan Chen
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan
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12
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Yao YC, Liu C, Wu LJ, Yuan XQ, Du YY, Li NJ, Guo N, Deng TR, Hua X, Teng XM, Yin L, Li YF. Associations between medication use and phthalate metabolites in urine and follicular fluid among women undergoing in vitro fertilization. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 215:112174. [PMID: 33773155 DOI: 10.1016/j.ecoenv.2021.112174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Phthalates, which are used as excipients of drugs, have been related to adverse reproductive outcomes. However, the relationships between medication use and phthalate exposure among women undergoing in vitro fertilization (IVF) have not been studied. OBJECTIVE To investigate the associations between the medication intake and phthalate metabolites in urine and follicular fluid (FF). METHOD Eight phthalate metabolites were measured in urine and FF samples from 274 women undergoing IVF using liquid chromatography-tandem mass spectrometry. Information on recent medication intake was obtained via interview by trained staff. We constructed generalized linear regression models to examine the associations of medication intake with phthalate metabolite concentrations and dose-response relationships between the number of medicines used and metabolite concentrations in two matrices. RESULTS Four of 10 drugs were used by more than 10% of the participants, including vitamins (23.0%), traditional Chinese medicine (TCM, 22.3%), antioxidants (12.4%) and amoxicillin (10.2%). Participants who had used TCM had 26.0% (95% CI: 0.0, 58.8%), 32.6% (95% CI: 4.2, 68.8%) and 32.3% (95% CI: 2.6, 70.6%) higher urinary mono-n-butyl phthalate (MBP), mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) and mono(2-ethyl-5-oxohexyl) phthalate (MEOHP) concentrations, respectively, than those who had not. Antioxidant intake was associated with a 30.6% (95% CI: -48.5, -6.6%) decrease in the urinary MBP concentration. Compared with non-users, women who reported the use of medicines had 53.2% (95% CI: 2.7, 128.5%) higher concentrations of MMP and a 37.7% (95% CI: -60.7, -1.5%) lower level of MBP in FF, respectively. CONCLUSION Our data suggest that the intake of some medications may increase phthalate exposure among women undergoing IVF.
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Affiliation(s)
- Yang-Cheng Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Chong Liu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Lin-Jing Wu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Xiao-Qiong Yuan
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Yao-Yao Du
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Ni-Jie Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Na Guo
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Tao-Ran Deng
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Xiang Hua
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Xue-Mei Teng
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Li Yin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China
| | - Yu-Feng Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, PR China.
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13
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Zhou S, Han M, Ren Y, Yang X, Duan L, Zeng Y, Li J. Dibutyl phthalate aggravated asthma-like symptoms through oxidative stress and increasing calcitonin gene-related peptide release. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 199:110740. [PMID: 32446102 DOI: 10.1016/j.ecoenv.2020.110740] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/02/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
Dibutyl phthalate (DBP) is one of the most ubiquitous phthalate esters found in everyday products, and is receiving increased attention as an immunologic adjuvant. However, information regarding DBP-aggravated allergic asthma is still limited. This study used a mouse model sensitized with ovalbumin (OVA) to determine any adverse effects of DBP on allergic asthma. Our results reveal that allergic asthmatic mice exposed to DBP for an extended period had a significant increase in inflammatory cell infiltration; a significant increase in levels of serum immunoglobulin and T helper 2 cell (Th2) and T helper 17 cell (Th17) cytokines in lung tissue; and significant changes in lung histology and AHR, all of which are typical asthmatic symptoms. The levels of oxidative stress and levels of the neuropeptide, calcitonin gene related peptide (CGRP), were also elevated after DBP exposure. Interestingly, blocking oxidative stress by administering melatonin (MT) not only reduced oxidative stress and CGRP levels, but also ameliorated the asthmatic symptoms. Collectively, these results show that DBP exacerbates asthma-like pathologies by increasing the expression of CGRP mediated by oxidative stress.
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Affiliation(s)
- Sangyu Zhou
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Man Han
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yaolin Ren
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Xu Yang
- Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Liju Duan
- School of Public Health, Huazhong University of Science and Technology, Wuhan, 430030, 430079, China
| | - Yan Zeng
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Jinquan Li
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan, 430081, China; Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China.
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14
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Nassan FL, Arvizu M, Mínguez-Alarcón L, Williams PL, Attaman J, Petrozza J, Hauser R, Chavarro J. Marijuana smoking and markers of testicular function among men from a fertility centre. Hum Reprod 2020; 34:715-723. [PMID: 30726923 PMCID: PMC6443114 DOI: 10.1093/humrep/dez002] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/15/2018] [Accepted: 01/07/2019] [Indexed: 12/12/2022] Open
Abstract
STUDY QUESTION Is marijuana smoking associated with semen quality, sperm DNA integrity or serum concentrations of reproductive hormones among subfertile men? SUMMARY ANSWER Men who had ever smoked marijuana had higher sperm concentration and count and lower serum FSH concentrations than men who had never smoked marijuana; no differences were observed between current and past marijuana smokers. WHAT IS KNOWN ALREADY Studies of marijuana abuse in humans and animal models of exposure to marijuana suggest that marijuana smoking adversely impacts spermatogenesis. Data is less clear for moderate consumption levels and multiple studies have found higher serum testosterone concentrations among marijuana consumers. STUDY DESIGN, SIZE, DURATION This longitudinal study included 662 subfertile men enroled at the Massachusetts General Hospital Fertility Center between 2000 and 2017. The men provided a total of 1143 semen samples; 317 men also provided blood samples in which we measured reproductive hormones. PARTICIPANTS/MATERIALS, SETTING, METHODS Use of marijuana and other drugs was self-reported at baseline. Standard protocols were followed for measuring semen quality, sex hormones and DNA integrity. We used linear mixed effect models with a random intercept to evaluate the associations of self-reported marijuana smoking at enrolment with semen parameters from subsequently collected samples, and linear regression models for sperm DNA integrity and serum reproductive hormones, while adjusting for confounders including smoking and cocaine use. MAIN RESULTS AND THE ROLE OF CHANCE Men who had ever smoked marijuana (N = 365) had significantly higher sperm concentration (62.7 (95% confidence interval: 56.0, 70.3) million/mL) than men who had never smoked marijuana (N = 297) (45.4 (38.6, 53.3) million/mL) after adjusting for potential confounders (P = 0.0003). There were no significant differences in sperm concentration between current (N = 74) (59.5 (47.3, 74.8) million/mL) and past marijuana smokers (N = 291) (63.5 (56.1, 72.0) million/mL; P = 0.60). A similar pattern was observed for total sperm count. Furthermore, the adjusted prevalence of sperm concentration and total sperm motility below WHO reference values among marijuana smokers was less than half that of never marijuana smokers. Marijuana smokers had significantly lower follicle stimulating hormone (FSH) concentrations than never marijuana smokers (-16% (-27%, -4%)) and there were no significant differences between current and past marijuana smokers (P = 0.53). Marijuana smoking was not associated with other semen parameters, with markers of sperm DNA integrity or with reproductive hormones other than FSH. Chance findings cannot be excluded due to the multiple comparisons. LIMITATIONS, REASONS FOR CAUTION Our results may not be generalisable to men from the general population. Marijuana smoking was self-reported and there may be misclassification of the exposure. WIDER IMPLICATIONS OF THE FINDINGS These findings are not consistent with a deleterious effect of marijuana on testicular function. Whether these findings are reflective of the previously described role of the endocannabinoid system in spermatogenesis or a spurious association requires confirmation in further studies. STUDY FUNDING/COMPETING INTEREST(S) The project was funded by grants R01ES009718 and P30ES000002 from the National Institute of Environmental Health Sciences (NIEHS). None of the authors has any conflicts of interest to declare. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Feiby L Nassan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Mariel Arvizu
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Paige L Williams
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Jill Attaman
- Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - John Petrozza
- Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jorge Chavarro
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Channing Division of Network Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA
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15
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Male Sexual and Reproductive Health-Does the Urologist Have a Role in Addressing Gender Inequality in Life Expectancy? Eur Urol Focus 2019; 6:791-800. [PMID: 31711931 DOI: 10.1016/j.euf.2019.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/09/2019] [Accepted: 10/17/2019] [Indexed: 12/21/2022]
Abstract
Despite considerable public health initiatives in the past century, there remains a significant gender inequality in life expectancy. The Global Burden of Diseases study has highlighted that the life expectancy for men is 70.5years, compared with 75.6years for women. This discrepancy in mortality appears to be related to a disproportionately higher number of preventable and premature male deaths. Whilst there has been an increased focus on men's health, as evidenced by the establishment of men's health charities and governmental legislation promoting equality, a recent World Health Organization report has highlighted that there is still a prevailing misconception that the higher rate of premature mortality amongst men is a natural phenomenon. We explore the association of male sexual and reproductive health-related diseases and the potential role of a urologist in addressing gender inequality in life expectancy. PATIENT SUMMARY: In this report, we discuss the causes for the gender gap in life expectancy and highlight that men continue to have a higher rate of premature death than women, which is associated with diseases of the male reproductive system. Furthermore, this not only appears to be related to a number of metabolic and lifestyle factors, but may also be the result of the increased risk of cancer in men with sexual and reproductive health-related diseases.
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16
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Nassan FL, Mínguez-Alarcón L, Williams PL, Dadd R, Petrozza JC, Ford JB, Calafat AM, Hauser R. Urinary triclosan concentrations and semen quality among men from a fertility clinic. ENVIRONMENTAL RESEARCH 2019; 177:108633. [PMID: 31421444 PMCID: PMC6717534 DOI: 10.1016/j.envres.2019.108633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 05/10/2023]
Abstract
BACKGROUND Triclosan, a widely-used antimicrobial in personal care products, has shown endocrine disrupting activity in experimental studies. However, there is limited evidence from epidemiologic studies on health effects. OBJECTIVE To examine the association between urinary triclosan concentrations and semen quality. METHODS A total of 262 men enrolled in the Environmental and Reproductive Health (EARTH) Study provided 581 paired urine and semen samples (2009-2017). Urinary triclosan concentrations were quantified and semen analysis was evaluated according to WHO guidelines. We used linear mixed regression models to estimate the associations between specific gravity-adjusted urinary triclosan concentrations with semen parameters, with a random intercept to account for multiple samples per man and adjusting for age, body mass index (BMI), smoking, physical activity, sexual abstinence time, and season and year of samples' collection. RESULTS Men had a mean (standard deviation) age of 36.6 (5.24) years and BMI of 27.9 (5.94) kg/m2. Seventy four percent of the samples had detectable (>2.3 μg/L) concentrations. We did not observe significant dose response trends between SG-adjusted urinary triclosan concentrations and semen parameters. However, in the adjusted analysis, compared to men with non-detectable triclosan concentrations in the lowest quartile, those in the second, third, and fourth quartiles had -1.32% (95%CI: -2.04, -0.59), -0.91% (95%CI: -1.63, -0.18), and -0.46% (95%CI: -1.25, 0.33) lower percent morphologically normal sperm, respectively. Similarly, a lower percentage of morphologically normal sperm was found among men with detectable triclosan concentrations, compared to men with non-detectable triclosan [-0.96% (95% CI: -1.57, -0.35)]. In sensitivity analyses, there was stronger negative associations on the percent morphologically normal sperm in the earlier time period due to the significant negative trend in detectable triclosan concentrations over time. CONCLUSION Despite the lack of observed dose response relationship, we found consistent patterns of lower percent morphologically normal sperm for men with urinary triclosan in the 2nd or 3rd quartile compared to undetectable concentrations.This association was stronger for samples obtained prior to 2013 when triclosan was more often detectable in urine.
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Affiliation(s)
- Feiby L Nassan
- Department of Environmental Health, Boston, MA, USA; Department of Nutrition, Boston, MA, USA.
| | | | - Paige L Williams
- Department of Biostatistics, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Ramace Dadd
- Department of Environmental Health, Boston, MA, USA
| | - John C Petrozza
- Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, USA
| | - Russ Hauser
- Department of Environmental Health, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Fisher M, Arbuckle TE, MacPherson S, Braun JM, Feeley M, Gaudreau É. Phthalate and BPA Exposure in Women and Newborns through Personal Care Product Use and Food Packaging. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10813-10826. [PMID: 31424210 DOI: 10.1021/acs.est.9b02372] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Phthalates and bisphenol A (BPA) are used in some personal care products (PCPs) and containers for food processing and packaging. The Plastics and Personal-Care Product use in Pregnancy (P4) Study (2009-10) explored the association between PCP use during pregnancy and the postpartum period among 80 pregnant women and 55 infants and BPA and phthalate concentrations in multiple maternal and infant urine specimens collected throughout the study (n = 1260 samples). The type, frequency, and timing of PCP and food packaging use 24 h before and during the urine collection period was collected at 5 time points for the mother using prospective diaries. Infant urine was collected up to 2 times before 3 months of age, and mothers answered questions about infant feeding and PCP use on their baby. In mothers, monoethyl phthalate (MEP) metabolite concentrations were significantly higher when women reported using makeup or body lotion in the last 24 h. MEP concentrations were consistently higher when the usage occurred within 0-6 h before the urine sample collection for almost all of the PCP categories. Infant lotion or baby powder application in the previous 24 h was associated with higher phthalate metabolite concentrations in infants. Total BPA metabolite concentrations were lower in exclusively breastfed infants compared to those who were exclusively formula fed or breastfed with supplementation. Given that PCPs tend to undergo frequent formulation changes, which could impact the relative importance of a certain product type as a source of exposure, continued research of this type is warranted.
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Affiliation(s)
| | | | | | - Joseph M Braun
- Department of Epidemiology , Brown University , Providence , Rhode Island 02912 , United States
| | | | - Éric Gaudreau
- Centre de Toxicologie du Québec (CTQ) , Institut National de Santé Publique du Québec (INSPQ) , Quebec , Quebec G1V 5B3 , Canda
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Estill M, Hauser R, Nassan FL, Moss A, Krawetz SA. The effects of di-butyl phthalate exposure from medications on human sperm RNA among men. Sci Rep 2019; 9:12397. [PMID: 31455814 PMCID: PMC6711971 DOI: 10.1038/s41598-019-48441-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/05/2019] [Indexed: 02/08/2023] Open
Abstract
Endocrine disruptors, such as phthalates, are suspected of affecting reproductive function. The Mesalamine and Reproductive Health Study (MARS) was designed to address the physiological effect of in vivo phthalate exposure on male reproduction in patients with Inflammatory Bowel Disease (IBD). As part of this effort, the effect on sperm RNAs to DBP exposure were longitudinally assessed using a cross-over cross-back binary design of high or background, exposures to DBP. As the DBP level was altered, numerous sperm RNA elements (REs) were differentially expressed, suggesting that exposure to or removal from high DBP produces effects that require longer than one spermatogenic cycle to resolve. In comparison, small RNAs were minimally affected by DBP exposure. While initial study medication (high or background) implicates different biological pathways, initiation on the high-DBP condition activated oxidative stress and DNA damage pathways. The negative correlation of REs with specific genomic repeats suggests a regulatory role. Using ejaculated sperm, this work provides insight into the male germline's response to phthalate exposure.
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Affiliation(s)
- Molly Estill
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Russ Hauser
- Vincent Memorial Obstetrics and Gynecology Service, Massachusetts General Hospital, Harvard Medical School, and Departments of Environmental Health and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Feiby L Nassan
- Departments of Environmental Health and Nutrition, Harvard T. H. Chan School of Public Health, MA, 02115, USA
| | - Alan Moss
- Department of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, 02115, USA
| | - Stephen A Krawetz
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
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Rodprasert W, Main KM, Toppari J, Virtanen HE. Associations between male reproductive health and exposure to endocrine-disrupting chemicals. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.coemr.2019.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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20
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Nassan FL, Gunn JA, Hill MM, Coull BA, Hauser R. High phthalate exposure increased urinary concentrations of quinolinic acid, implicated in the pathogenesis of neurological disorders: Is this a potential missing link? ENVIRONMENTAL RESEARCH 2019; 172:430-436. [PMID: 30826665 PMCID: PMC6511314 DOI: 10.1016/j.envres.2019.02.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/06/2019] [Accepted: 02/21/2019] [Indexed: 05/16/2023]
Abstract
BACKGROUND Quinolinic acid (QA), a neuroactive metabolite of the Kynurenine Pathway (KP), is an excitotoxin that is implicated in the pathogenesis of many neurological disorders. KP is the main tryptophan degradation pathway. Phthalates can structurally mimic tryptophan metabolites and diets containing phthalates in rats enhanced the production and excretion of QA. However, there are no human studies that have examined the association between phthalates and QA. OBJECTIVES Taking advantage of different mesalamine formulations with/without dibutyl phthalate (DBP), we assessed whether DBP from mesalamine (>1000x background) altered the urinary concentrations of QA. METHODS Men with inflammatory bowel disease participated in a prospective crossover pilot study. 15 Men were on non-DBP mesalamine (background) at baseline crossed-over for 4 months to high-DBP mesalamine (high) (B1H-Arm) and vice versa for 15 men who were on high-DBP mesalamine at baseline (H1B-Arm). Men provided 60 urine samples (2/man). We estimated crossover and cross-sectional changes in the creatinine normalized-QA using multivariable linear mixed effect models with random intercepts. RESULTS At baseline, men who were on high-DBP mesalamine (H1B-Arm) had 72%, (95% confidence interval (CI): 18, 151) higher normalized-QA than men who were on background exposure and when high-DBP mesalamine was removed for four months, normalized-QA decreased with 32%, (95% CI: -45.0, -15.1). Consistently, when men in B1H-Arm were newly-exposed to high-DBP mesalamine, normalized-QA increased with 11%, (95% CI: -11, 38). CONCLUSIONS High-DBP exposure from mesalamine increased the urinary concentrations of QA, which was largely reversed after removal of the high-DBP exposure for four months. This novel hypothesis should warrant new promising research considering the KP and QA concentrations as a plausible mediator for the neurotoxicity possibly linked with phthalate exposures.
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Affiliation(s)
- Feiby L Nassan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | | | | | - Brent A Coull
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology Harvard T. H. Chan School of Public Health, Boston, MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Grosen A, Bungum M, Christensen LA, Cordelli E, Larsen OH, Leter G, Julsgaard M, Vestergaard T, Villani P, Hvas CL, Kelsen J. Semen Quality and Sperm DNA Integrity in Patients With Severe Active Inflammatory Bowel Disease and Effects of Tumour Necrosis Factor-alpha Inhibitors. J Crohns Colitis 2019; 13:564-571. [PMID: 30500868 DOI: 10.1093/ecco-jcc/jjy198] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS The impact of severe inflammation on semen quality, including sperm DNA integrity, in men with inflammatory bowel disease [IBD] is unknown, as are the potential effects of anti-tumour necrosis factor-alpha [TNF-alpha] therapy. We investigated the influence of severe active IBD and anti-TNF-alpha treatment on semen quality. METHODS We prospectively included 20 patients admitted with severe active IBD. Further, 19 patients who initiated and 17 who stopped anti-TNF-alpha therapy were included. Semen samples were obtained during active disease, and on/off treatment. For paired comparisons, samples were collected not less than 3 months after achieving remission, after treatment initiation, or after treatment cessation. Sperm DNA Fragmentation Index [DFI], concentration, morphology, and motility were evaluated. Sex hormones and seminal plasma anti-TNF-alpha drug levels were measured. RESULTS In patients with severe disease, progressive sperm motility was impaired and increased significantly [from 28.4% to 37.4%, p = 0.045] during remission. There was no difference in DFI [12.5% versus 12.0%, p = 0.55], concentration [55.0 mill/ml versus 70.0 mill/ml, p = 0.39], or normal morphology [4.7% versus 5.1%, p = 0.51] in these patients. During active disease, testosterone was decreased, and normalised after obtaining remission. Patients who started anti-TNF-alpha therapy had a statistically significant, but clinically irrelevant, reduction in DFI after treatment initiation [12.8% versus 10.0%, p = 0.02]. All other semen parameters were unaffected by therapy. Anti-TNF-alpha drugs were excreted in negligible amounts in semen. CONCLUSIONS Severe active IBD reduces progressive sperm motility and testosterone levels, but sperm DNA integrity is unaffected by active disease. Anti-TNF-alpha therapy does not impair sperm quality.
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Affiliation(s)
- Anne Grosen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Mona Bungum
- Reproductive Medicine Centre, Skaane University Hospital, Malmoe, Sweden
| | - Lisbet Ambrosius Christensen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark.,Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Eugenia Cordelli
- Laboratory of Biosafety and Risk Assessment, ENEA, Casaccia Research Centre, Rome, Italy
| | - Ole Halfdan Larsen
- Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Giorgio Leter
- Laboratory of Biosafety and Risk Assessment, ENEA, Casaccia Research Centre, Rome, Italy
| | - Mette Julsgaard
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Thea Vestergaard
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Paola Villani
- Laboratory of Biosafety and Risk Assessment, ENEA, Casaccia Research Centre, Rome, Italy
| | - Christian Lodberg Hvas
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Jens Kelsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
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A Review of Biomonitoring of Phthalate Exposures. TOXICS 2019; 7:toxics7020021. [PMID: 30959800 PMCID: PMC6630674 DOI: 10.3390/toxics7020021] [Citation(s) in RCA: 384] [Impact Index Per Article: 76.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/27/2019] [Accepted: 03/29/2019] [Indexed: 01/19/2023]
Abstract
Phthalates (diesters of phthalic acid) are widely used as plasticizers and additives in many consumer products. Laboratory animal studies have reported the endocrine-disrupting and reproductive effects of phthalates, and human exposure to this class of chemicals is a concern. Several phthalates have been recognized as substances of high concern. Human exposure to phthalates occurs mainly via dietary sources, dermal absorption, and air inhalation. Phthalates are excreted as conjugated monoesters in urine, and some phthalates, such as di-2-ethylhexyl phthalate (DEHP), undergo secondary metabolism, including oxidative transformation, prior to urinary excretion. The occurrence of phthalates and their metabolites in urine, serum, breast milk, and semen has been widely reported. Urine has been the preferred matrix in human biomonitoring studies, and concentrations on the order of several tens to hundreds of nanograms per milliliter have been reported for several phthalate metabolites. Metabolites of diethyl phthalate (DEP), dibutyl- (DBP) and diisobutyl- (DiBP) phthalates, and DEHP were the most abundant compounds measured in urine. Temporal trends in phthalate exposures varied among countries. In the United States (US), DEHP exposure has declined since 2005, whereas DiNP exposure has increased. In China, DEHP exposure has increased since 2000. For many phthalates, exposures in children are higher than those in adults. Human epidemiological studies have shown a significant association between phthalate exposures and adverse reproductive outcomes in women and men, type II diabetes and insulin resistance, overweight/obesity, allergy, and asthma. This review compiles biomonitoring studies of phthalates and exposure doses to assess health risks from phthalate exposures in populations across the globe.
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Temporal Trends of Urinary Phthalate Concentrations in Two Populations: Effects of REACH Authorization after Five Years. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15091950. [PMID: 30200671 PMCID: PMC6163747 DOI: 10.3390/ijerph15091950] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/30/2018] [Accepted: 08/31/2018] [Indexed: 12/17/2022]
Abstract
Phthalates are widely used in the industrial manufacture of many products. Some phthalates have shown reproductive toxicity in humans, acting as endocrine disruptors, so they were included in the authorization process defined in Reg. CE 1907/2006 (REACH). Two groups of population were recruited, before and after the inclusion of some phthalates in the authorization list in REACH: the first group of 157 volunteers was studied in 2011 and the second, 171 volunteers, in 2016. Each subject completed a questionnaire about personal lifestyle, working activities and use of chemical products. The main urinary metabolites of five phthalates were analyzed by HPLC/MS/MS: mono(2-ethylhexyl)phthalate (MEHP) and mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) for di(2-ethylhexyl)phthalate (DEHP) exposure; monoethylphthalate (MEP) for diethylphtahate (DEP); monobenzylphthalate (MBzP) for butylbenzylphtahalate (BBP) and dibenzylphthalate (DBzP), mono-n-butylphthalate (MnBP) for butylbenzylphtahalate (BBP) and di-n-butylphthalate (DnBP). The results show a significant difference for all metabolites between the two periods, with the exception of MEP in women. The comparison of the two sets of results shows a decrease in urinary metabolites excretion from 2011 to 2016, statistically significant for the three phthalates included in Annex XIV of REACH. DEP, not currently included in the list for authorization, maintains a constant presence in the daily life of the population, particularly for women.
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Nassan FL, Korevaar TIM, Coull BA, Skakkebæk NE, Krawetz SA, Estill M, Hait EJ, Korzenik JR, Ford JB, De Poortere RA, Broeren MA, Moss AC, Zoeller TR, Hauser R. Dibutyl-phthalate exposure from mesalamine medications and serum thyroid hormones in men. Int J Hyg Environ Health 2018; 222:101-110. [PMID: 30170956 DOI: 10.1016/j.ijheh.2018.08.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/14/2018] [Accepted: 08/14/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dibutyl phthalate (DBP) is an endocrine disruptor and used in some medication coatings, such as mesalamine for treatment inflammatory bowel disease (IBD). OBJECTIVES To determine whether high-DBP from some mesalamine medications alters thyroid function. METHODS Seventy men with IBD, without thyroid disease or any radiation history participated in a crossover-crossback prospective study and provided up to 6 serum samples (2:baseline, 2:crossover, 2:crossback). Men on non-DBP mesalamine (background exposure) at baseline crossed-over to DBP-mesalamine (high exposure) then crossed-back to non-DBP mesalamine (B1HB2-arm) and vice versa for men on DBP-mesalamine at baseline (H1BH2-arm). Serum concentrations of total triiodothyronine (T3), total thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH) and thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TgAb). RESULTS After crossover in B1HB2-arm (26 men, 134 samples), T3 decreased 10% (95% confidence interval (CI): 14%,-5%), T3/T4 ratio decreased 8% (CI: 12%,-3%), TPOAb, and TgAb concentrations decreased, 11% (-20%, -2%) and 15% (-23%, -5%), respectively; after crossback, they increased. When men in the H1BH2-arm (44 men, 193 samples) crossed-over, T3 decreased 7% (CI: -11%, -2%) and T3/T4 ratio decreased 6% (CI: -9%, -2%). After crossback, only TgAb increased and FT4 decreased. CONCLUSIONS High-DBP novel exposure or removal from chronic high-DBP exposure could alter elements of the thyroid system, and most probably alters the peripheral T4 conversion to T3 and thyroid autoimmunity, consistent with thyroid disruption. After exposure removal, these trends were mostly reversed.
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Affiliation(s)
- Feiby L Nassan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - Tim I M Korevaar
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Brent A Coull
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Niels E Skakkebæk
- Department of Growth and Reproduction, EDMaRC, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Stephen A Krawetz
- Department of Obstetrics & Gynecology, Center for Molecular Medicine & Genetics, Wayne State University, Detroit, MI, USA
| | - Molly Estill
- Department of Obstetrics & Gynecology, Center for Molecular Medicine & Genetics, Wayne State University, Detroit, MI, USA
| | - Elizabeth J Hait
- Division of Gastroenterology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - Joshua R Korzenik
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jennifer B Ford
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Ralph A De Poortere
- Laboratory of Clinical Chemistry and Haematology, Máxima Medical Centre, Veldhoven, De Run, 4600, the Netherlands
| | - Maarten A Broeren
- Laboratory of Clinical Chemistry and Haematology, Máxima Medical Centre, Veldhoven, De Run, 4600, the Netherlands
| | - Alan C Moss
- Center for Inflammatory Bowel Disease, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Thomas R Zoeller
- Department of Biology, University of Massachusetts, Amherst, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Dibutyl phthalate exposure aggravates type 2 diabetes by disrupting the insulin-mediated PI3K/AKT signaling pathway. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.03.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Nassan FL, Chavarro JE, Mínguez-Alarcón L, Williams PL, Tanrikut C, Ford JB, Dadd R, Perry MJ, Hauser R, Gaskins AJ. Residential distance to major roadways and semen quality, sperm DNA integrity, chromosomal disomy, and serum reproductive hormones among men attending a fertility clinic. Int J Hyg Environ Health 2018; 221:830-837. [PMID: 29801984 PMCID: PMC5997566 DOI: 10.1016/j.ijheh.2018.05.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/16/2018] [Accepted: 05/18/2018] [Indexed: 11/20/2022]
Abstract
OBJECTIVE We examined associations of residential distance to major roadways, as a proxy for traffic-related air pollution exposures, with sperm characteristics and male reproductive hormones. DESIGN The cohort included 797 men recruited from Massachusetts General Hospital Fertility Center between 2000 and 2015 to participate in fertility research studies. MATERIALS AND METHODS Men reported their residential addresses at enrollment and provided 1-6 semen samples and a blood sample during follow-up. We estimated the Euclidean distance to major roadways (e.g. interstates and highways: limited access highways, multi-lane highways (not limited access), other numbered routes, and major roads) using information from the Massachusetts Department of Geographic Information Systems. Semen parameters (1238 semen samples), sperm DNA integrity (389 semen samples), chromosomal disomy (101 semen samples), and serum reproductive hormones (405 serum samples) were assessed following standard procedures. RESULTS Men in this cohort were primarily Caucasian (86%), not current smokers (92%), with a college or higher education (88%), and had an average age of 36 years and BMI of 27.7 kg/m2. The median (interquartile range) residential distance to a major roadway was 111 (37, 248) meters. Residential proximity to major roadways was not associated with semen parameters, sperm DNA integrity, chromosomal disomy, or serum reproductive hormone concentrations. The adjusted percent change (95% CI) in semen quality parameters associated with a 500 m increase in residential distance to a major roadway was -1.0% (-6.3, 4.5) for semen volume, 4.3% (-5.8, 15.7) for sperm concentration, 3.1% (-7.2, 14.5) for sperm count, 1.1% (-1.2, 3.4) for % total motile sperm, and 0.1% (-0.3, 0.5) for % morphologically normal sperm. Results were consistent when we modeled the semen parameters dichotomized according to WHO 2010 reference values. CONCLUSION Residential distance to major roadways, as a proxy for traffic-related air pollution exposure, was not related to sperm characteristics or serum reproductive hormones among men attending a fertility clinic in Massachusetts.
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Affiliation(s)
- Feiby L Nassan
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Departments of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States.
| | - Jorge E Chavarro
- Departments of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Departments of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, United States
| | - Lidia Mínguez-Alarcón
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Paige L Williams
- Departments of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Departments of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Cigdem Tanrikut
- Department of Urology, Massachusetts General Hospital, Boston, MA, United States
| | - Jennifer B Ford
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Ramace Dadd
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Melissa J Perry
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC, United States
| | - Russ Hauser
- Departments of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Departments of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Audrey J Gaskins
- Departments of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, United States
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Broe A, Pottegård A, Hallas J, Ahern TP, Fedder J, Damkier P. Association between use of phthalate-containing medication and semen quality among men in couples referred for assisted reproduction. Hum Reprod 2018; 33:503-511. [PMID: 29425332 PMCID: PMC6454815 DOI: 10.1093/humrep/dey009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 12/19/2017] [Accepted: 01/10/2018] [Indexed: 12/26/2022] Open
Abstract
STUDY QUESTION Does phthalate exposure from prescription drugs affect semen quality? SUMMARY ANSWER Exposure to phthalate-containing drugs is associated with poor semen quality. WHAT IS KNOWN ALREADY Phthalates and their metabolites have been shown to disrupt the hormone signalling in animal studies. One study has shown associations between medicinal phthalate exposure and poor semen quality, suggesting similar effects in humans. STUDY DESIGN, SIZE, DURATION We included 18 515 males with poor semen quality (cases) and 31 063 males with normal semen quality (controls) registered in the Danish IVF Registry from 2006 to 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS Exposure to phthalate-containing drugs was assessed from the Danish Register of Medicinal Product Statistics. Outcome measures were obtained at the first contact with the fertility clinic, and categorized according to the International Classification of Diseases (ICD-10). The association between current use of phthalate-containing medications <90 days prior to semen sampling and reduced semen quality was analysed using unconditional logistic regression, adjusting for potential confounders. MAIN RESULTS AND THE ROLE OF CHANCE In total, 57 cases and 72 controls redeemed at least one prescription for a drug containing ortho-phthalates in the 90 days before their first semen sample, yielding an adjusted odds ratio (OR) of 1.30 (95% CI: 0.91-1.85) for poor semen quality when compared to males exposed to phthalate-free generic drugs. Similarly, 81 cases and 78 controls exposed to a drug containing polymers had increased odds of poor semen quality (OR = 1.71, 95% CI: 1.24-2.35). Current exposure to polymer containing products from alimentary tract and metabolism drugs was associated with the highest OR of 2.80 (95% CI: 1.63-4.84). Comparing males exposed to drugs containing ortho-phthalates or polymers with males unexposed to prescription drugs, we found adjusted ORs of 1.32 (95% CI: 0.93-1.87) and 1.73 (95% CI: 1.26-2.36), respectively. We saw no clear relationship between degree of exposure and odds of poor semen quality. LIMITATIONS, REASONS FOR CAUTION The reliance on ICD-10 based register data restricted our ability to relate phthalate exposure to detailed semen parameters. Furthermore, due to imperfections in the registry, we could only include the first semen sample and could not follow semen quality over time. WIDER IMPLICATIONS OF THE FINDINGS Our results support the likely negative effect of phthalate exposure from medicinal drugs on semen quality. As exposures from medicinal products are readily avoidable, our findings may be of relevance to regulatory authorities. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by Odense University Hospital, Denmark (Grant number A1003). None of the authors declare conflict of interest.
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Affiliation(s)
- A Broe
- Clinical Pharmacology & Pharmacy, Department of Public Health, University of Southern Denmark, 5000 Odense C, Denmark
- Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, 5000 Odense C, Denmark
| | - A Pottegård
- Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, 5000 Odense C, Denmark
| | - J Hallas
- Clinical Pharmacology & Pharmacy, Department of Public Health, University of Southern Denmark, 5000 Odense C, Denmark
- Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, 5000 Odense C, Denmark
| | - T P Ahern
- Departments of Surgery and Biochemistry, Larner College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - J Fedder
- Centre of Andrology & Fertility Clinic, Odense University Hospital, 5000 Odense C, Denmark
- Department of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
| | - P Damkier
- Department of Clinical Biochemistry & Pharmacology, Odense University Hospital, 5000 Odense C, Denmark
- Department of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
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Wang YX, Liu C, Chen YJ, Chen HG, Yang P, Wang P, Huang LL, Ai SH, Duan P, Pan A, Zeng Q, Lu WQ. Predictors and correlations of phthalate metabolite concentrations in urine and seminal plasma among reproductive-aged men. ENVIRONMENTAL RESEARCH 2018; 161:336-344. [PMID: 29190551 DOI: 10.1016/j.envres.2017.11.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/27/2017] [Accepted: 11/18/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Certain phthalates are suspected to be endocrine disruptors that are adversely associated with male reproductive health. However, the predictors and correlations of phthalate metabolite concentrations in urine and seminal plasma among reproductive-aged men have not been thoroughly studied. OBJECTIVE To investigate the predictors and correlations of phthalate metabolite concentrations in urine and seminal plasma among adult Chinese males. METHOD We measured mono-n-butyl phthalate (MBP), monobenzyl phthalate (MBzP), monomethyl phthalate (MMP), monoethyl phthalate (MEP), mono-n-octyl phthalate (MOP), mono(2-ethylhexyl) phthalate (MEHP), mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) and mono(2-ethyl-5-oxohexyl) phthalate (MEOHP) concentrations in seminal plasma and repeated spot-urine samples from 687 men who visited a reproductive center. Mixed-effect models were used to examine the associations of sociodemographic, lifestyle and medical factors with urinary metabolite concentrations. Linear regression models were used to identify predictors of metabolite concentrations in seminal plasma and correlations between metabolite concentrations in spot urine samples and seminal plasma. RESULTS Measurements taken from spot urine samples poorly predicted same-day seminal plasma concentrations (all R2<0.10). Inverse associations were observed between education level and urinary MBP and MEOHP and between household income and urinary MMP; receiving intravenous infusion therapy was associated with increased urinary MBP, MEHHP and MEOHP, use of facial cleanser/cream was associated with increased MEP, and smoking was associated with increased MEHP. The predictors of metabolite concentrations in seminal plasma differed from those in urine, except for the association of intravenous infusion therapy with MBP. BMI was associated with increased seminal plasma MBP, MEHP and MEOHP, smoking was associated with increased MEP, and contact with plastics was associated with increased MEOHP. CONCLUSIONS Phthalate metabolite concentrations in adult men varied in accordance with sociodemographic variables, lifestyle factors and intravenous therapy. Measures of metabolite levels in urine may not directly reflect the exposure status of the male reproductive system.
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Affiliation(s)
- Yi-Xin Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Chong Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Ying-Jun Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Heng-Gui Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Pan Yang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Peng Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Li-Li Huang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Song-Hua Ai
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Peng Duan
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - An Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Qiang Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Wen-Qing Lu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
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Nassan FL, Coull BA, Skakkebaek NE, Andersson AM, Williams MA, Mínguez-Alarcón L, Krawetz SA, Hall JE, Hait EJ, Korzenik JR, Ford JB, Moss AC, Hauser R. A crossover-crossback prospective study of dibutyl-phthalate exposure from mesalamine medications and serum reproductive hormones in men. ENVIRONMENTAL RESEARCH 2018; 160:121-131. [PMID: 28978458 PMCID: PMC5705343 DOI: 10.1016/j.envres.2017.09.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/15/2017] [Accepted: 09/21/2017] [Indexed: 05/12/2023]
Abstract
BACKGROUND Phthalates, such as dibutyl phthalate (DBP), are endocrine disruptors used in some medication coatings e.g., mesalamine to treat inflammatory bowel disease (IBD). OBJECTIVES Taking advantage of different mesalamine formulations with/without DBP, we assessed whether DBP from mesalamine (>1000x background) altered serum hormones. METHODS Men (N=73) with IBD participated in a crossover-crossback prospective study and provided up to 6 serum samples (2:baseline, 2:crossover, 2:crossback). Men on non-DBP mesalamine (background) at baseline crossed-over for 4 months to DBP-mesalamine (high) and then crossed-back for 4 months to non-DBP mesalamine (B1HB2-arm) and vice versa for men on DBP-mesalamine at baseline (H1BH2-arm). We divided H1BH2-arm at the median (H1<3yrs or H1≥3yrs). We estimated crossover and crossback % changes in serum reproductive hormones using multivariable linear mixed effect models. RESULTS When B1HB2-arm (26 men,134 samples) crossed-over, luteinizing hormone decreased 13.9% (95% confidence interval(CI): -23.6,-3.0) and testosterone, inhibin-B, and follicle-stimulating hormone (FSH) marginally decreased; after crossback all increased 8-14%. H1BH2-arm, H1≥3yrs (25 men,107samples) had no changes at crossover or crossback whereas in H1BH2-arm,H1<3yrs (22 men,100 samples) after crossover, inhibin-B increased 13.2% (CI: 4.2,22.9), FSH decreased 9.9% (CI: -17.9,-1.1) and after crossback, inhibin-B further increased 11.3%, and FSH marginally increased. CONCLUSIONS High-DBP exposure may disrupt pituitary-gonadal hormones that largely reversed after exposure removal, but only in men with no or short previous high-exposure history. Paradoxically, men with longer duration of high-DBP exposure, exposure removal did not change hormone levels, suggesting that long-term high-DBP exposure may alter the pituitary-gonadal axis and make it insensitive to exposure changes.
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Affiliation(s)
- Feiby L Nassan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Niels E Skakkebaek
- University Department of Growth and Reproduction, and EDMaRC, Rigshospitalet, Copenhagen, Denmark
| | - Anna-Maria Andersson
- University Department of Growth and Reproduction, and EDMaRC, Rigshospitalet, Copenhagen, Denmark
| | - Michelle A Williams
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Stephen A Krawetz
- Department of Obstetrics & Gynecology, Center for Molecular Medicine & Genetics, Wayne State University, Detroit, MI, USA
| | - Janet E Hall
- Division of Intramural Research, NIH/NIEHS, NC, USA
| | - Elizabeth J Hait
- Division of Gastroenterology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - Joshua R Korzenik
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jennifer B Ford
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Alan C Moss
- Center for Inflammatory Bowel Disease, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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30
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Cullen E, Evans D, Griffin C, Burke P, Mannion R, Burns D, Flanagan A, Kellegher A, Schoeters G, Govarts E, Biot P, Casteleyn L, Castaño A, Kolossa-Gehring M, Esteban M, Schwedler G, Koch HM, Angerer J, Knudsen LE, Joas R, Joas A, Dumez B, Sepai O, Exley K, Aerts D. Urinary Phthalate Concentrations in Mothers and Their Children in Ireland: Results of the DEMOCOPHES Human Biomonitoring Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14121456. [PMID: 29186834 PMCID: PMC5750875 DOI: 10.3390/ijerph14121456] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/17/2017] [Accepted: 11/22/2017] [Indexed: 11/29/2022]
Abstract
Background: Phthalates are chemicals which are widespread in the environment. Although the impacts on health of such exposure are unclear, there is evidence of a possible impact on the incidence of a diverse range of diseases. Monitoring of human exposure to phthalates is therefore important. This study aimed to determine the extent of phthalate exposure among mothers and their children in both rural and urban areas in Ireland, and to identify factors associated with elevated concentrations. It formed part of the ‘Demonstration of a study to Co-ordinate and Perform Human Biomonitoring on a European Scale’ (DEMOCOPHES) pilot biomonitoring study. Methods: the concentration of phthalate metabolites were determined from a convenience sample of 120 mother/child pairs. The median age of the children was 8 years. A questionnaire was used to collect information regarding lifestyle and environmental conditions of the children and mothers. Rigorous quality assurance within DEMOCOPHES guaranteed the accuracy and international comparability of results. Results: Phthalate metabolites were detected in all of the samples from both children and mothers. Concentrations were significantly higher in respondents from families with lower educational attainment and in those exposed to such items as polyvinyl chloride (PVC), fast food and personal care products (PCP). Conclusions: The study demonstrates that human biomonitoring for assessing exposure to phthalates can be undertaken in Ireland and that the exposure of the population is widespread. Further work will be necessary before the consequences of this exposure are understood.
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Affiliation(s)
- Elizabeth Cullen
- Department of Community of Health, Health Service Executive, St. Mary’s, Naas, Kildare W91 NR29, Ireland
- Correspondence: ; Tel.: +353-45-882-403
| | - David Evans
- Department of Public Health, Health Service Executive, Galway H91973, Ireland;
| | - Chris Griffin
- Public Analyst’s Laboratory, Health Service Executive, Dublin D02 P667, Ireland;
| | - Padraig Burke
- Public Analyst’s Laboratory, Health Service Executive, Galway H91 Y952, Ireland; (P.B.); (R.M.); (A.F.)
| | - Rory Mannion
- Public Analyst’s Laboratory, Health Service Executive, Galway H91 Y952, Ireland; (P.B.); (R.M.); (A.F.)
| | - Damien Burns
- Project Manager, Health Service Executive, Palmerstown, Dublin D20 X318, Ireland;
| | - Andrew Flanagan
- Public Analyst’s Laboratory, Health Service Executive, Galway H91 Y952, Ireland; (P.B.); (R.M.); (A.F.)
| | - Ann Kellegher
- Environmental Health Service, Health Service Executive, Carrick on Shannon, Co Leitrim N41 XC59, Ireland;
| | - Greet Schoeters
- Flemish Institute for Technological Research (VITO), Sustainable Health Mol B-2400, Belgium; (G.S.); (E.G.)
- Biomedical Department, University of Antwerp, B-2000 Antwerp, Belgium
| | - Eva Govarts
- Flemish Institute for Technological Research (VITO), Sustainable Health Mol B-2400, Belgium; (G.S.); (E.G.)
| | - Pierre Biot
- Federal Public Service Health, Food Chain Safety and Environment, Brussels 1060, Belgium;
| | - Ludwine Casteleyn
- Center for Human Genetics, University of Leuven, Herestraat 49, 3000 Leuven, Belgium; (L.C.); (B.D.)
| | - Argelia Castaño
- Carlos 111 Institute of Health, National Centre for Environmental Health, Majadahonda, Madrid 28220, Spain; (A.C.); (M.E.)
| | | | - Marta Esteban
- Carlos 111 Institute of Health, National Centre for Environmental Health, Majadahonda, Madrid 28220, Spain; (A.C.); (M.E.)
| | - Gerda Schwedler
- German Environment Agency, Berlin 14195, Germany; (M.K.-G.); (G.S.)
| | - Holger M. Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bochum 44789, Germany; (H.M.K.); (J.A.)
| | - Jürgen Angerer
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bochum 44789, Germany; (H.M.K.); (J.A.)
| | - Lisbeth E. Knudsen
- Department of Public Health, University of Copenhagen, Copenhagen 1353, Denmark;
| | | | - Anke Joas
- BiPRO GmbH, Munich 81545, Germany; (R.J.); (A.J.)
| | - Birgit Dumez
- Center for Human Genetics, University of Leuven, Herestraat 49, 3000 Leuven, Belgium; (L.C.); (B.D.)
| | - Ovnair Sepai
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton OX11 ORQ, Oxfordshire OX11 ORQ, UK; (O.S.); (K.E.)
| | - Karen Exley
- Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton OX11 ORQ, Oxfordshire OX11 ORQ, UK; (O.S.); (K.E.)
| | - Dominique Aerts
- Federal Public Service Health, Food Chain Safety and Environment, Brussels 1060, Belgium;
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31
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Characterizing the effect of endocrine disruptors on human health: The role of epidemiological cohorts. C R Biol 2017; 340:421-431. [PMID: 28843646 DOI: 10.1016/j.crvi.2017.07.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 07/21/2017] [Indexed: 12/19/2022]
Abstract
Research on endocrine disruptors (EDs) developed from numerous disciplines. In this concert of disciplines, epidemiology is central to inform on the relevance for humans of mechanisms and dose-response functions identified in animals, to characterize the health impact (number of attributable disease cases), the cost associated with ED exposure, and the efficiency of the measures taken to limit exposure. Here, we present epidemiological tools to draw valid inference regarding effects of potential EDs. Epidemiology is generally observational, requiring care to control confounding bias. Many potential EDs have a short biological half-life; approaches relying on repeated biospecimens sampling allow limiting exposure misclassification and the resulting bias. For non-persistent compounds, couple-child cohorts are a central study design. Cohorts can now rely on molecular biology approaches to characterize exposures and intermediate pathways, which corresponds to the advent of molecular epidemiology and allows stronger interactions between epidemiology, toxicology, and molecular epidemiology to characterize the health effects of EDs.
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32
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Broe A, Ennis ZN, Pottegård A, Hallas J, Ahern T, Damkier P. Population Exposure to Phthalate-containing Drugs. Basic Clin Pharmacol Toxicol 2017; 121:153-158. [PMID: 28371296 DOI: 10.1111/bcpt.12781] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/20/2017] [Indexed: 12/13/2022]
Abstract
Phthalates are known endocrine disruptors. Not commonly recognized, phthalates are used as excipients in a number of drug formulations. We aimed to describe the sale of phthalate-containing drugs in Denmark from 2004 to 2015. National data on annual sale of medications (tablets only) were accessed from medstat.dk. Data from the Danish Medicines Agency on phthalate content per tablet were merged with data on total sale for each active substance and drug formulation. We used the 'defined daily dose' (DDD) as the unit of sale and calculated the total amount of phthalate (mg) dispensed per 1000 inhabitants. Specific tablet content was compared with the maximum daily exposure limits defined by regulatory agencies for diethyl phthalate (DEP) and dibutyl phthalate (DBP) of 4.0 and 0.01 mg/kg/day, respectively. Use of phthalate-containing drugs in Denmark was common. We found 154 drug products containing five different phthalates. Two low-molecular-weight phthalates and three high-molecular-weight phthalates were identified, with a total sale of 59.4 and 112 DDD per 1000 inhabitants per day during the study period, respectively. The highest amount of DBP was found in multi-enzymes (24.6-32.8 mg per DDD) and mesalazine (12.5-26.4 mg per DDD). Budesonide, lithium and bisacodyl also exceeded the DBP exposure limit of 0.01 mg/kg/day. Other drugs had high levels of DEP, although not exceeding the exposure limit. Sales of phthalate-containing drugs in Denmark from 2004 to 2015 were substantial, and phthalate exposure from several products exceeded the regulatory exposure limit introduced in 2014.
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Affiliation(s)
- Anne Broe
- Clinical Pharmacology and Pharmacy, Department of Public Health, University of Southern Denmark, Odense, Denmark.,Department of Clinical Chemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Zandra Nymand Ennis
- Clinical Pharmacology and Pharmacy, Department of Public Health, University of Southern Denmark, Odense, Denmark.,Department of Clinical Chemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Anton Pottegård
- Clinical Pharmacology and Pharmacy, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Jesper Hallas
- Clinical Pharmacology and Pharmacy, Department of Public Health, University of Southern Denmark, Odense, Denmark.,Department of Clinical Chemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Thomas Ahern
- Departments of Surgery and Biochemistry, University of Vermont College of Medicine, Burlington, VT, USA
| | - Per Damkier
- Clinical Pharmacology and Pharmacy, Department of Public Health, University of Southern Denmark, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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