keyword
MENU ▼
Read by QxMD icon Read
search

DEHP

keyword
https://www.readbyqxmd.com/read/29029336/differential-effects-of-exposure-to-single-versus-a-mixture-of-endocrine-disrupting-chemicals-on-steroidogenesis-pathway-in-mouse-testes
#1
Julio Buñay, Eduardo Larriba, Daniel Patiño-Garcia, Leonor Cruz-Fernandes, Sergio Castañeda-Zegarra, María Rodriguez-Fernandez, Jesús Del Mazo, Ricardo D Moreno
Endocrine-disrupting chemicals (EDCs) generate reproductive dysfunctions affecting the biosynthesis of steroid hormones and genes of the steroidogenic pathway. EDCs effects are mainly reported as a result of exposure to single compounds. However, humans are environmentally exposed to a mixture of EDCs. Herein, we assess chronic exposure to single alkylphenols and phthalates versus a mixture in mouse testes histology and steroidogenesis. Pregnant mice were exposed through drinking water to: 0.3 mg/Kg-body weight (BW)/day of each phthalate (DEHP, DBP, BBP), 0...
September 22, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29028671/prenatal-and-childhood-exposure-to-phthalate-diesters-and-thyroid-function-in-a-9-year-follow-up-birth-cohort-study-taiwan-maternal-and-infant-cohort-study
#2
Han-Bin Huang, Chia-Jui Chuang, Pen-Hua Su, Chien-Wen Sun, Chien-Jen Wang, Ming-Tsang Wu, Shu-Li Wang
BACKGROUND: Phthalates are widely used in industry, personal care products, and medications. Recent studies have suggested that phthalate exposure alters thyroid hormones. However, longitudinal studies concerning the association between phthalate exposure and thyroid function in children are scant. Therefore, we examined the association between pre- and postnatal phthalate exposure and thyroid function in children born in 2000-2001. METHODS: We studied 181 mother-child pairs in central Taiwan and followed-up the children from 2000 to 2009 at 2, 5, and 8 years old...
October 2017: Epidemiology
https://www.readbyqxmd.com/read/29020644/di-2-ethylhexyl-phthalate-and-diethyl-phthalate-disrupt-lipid-metabolism-reduce-fecundity-and-shortens-lifespan-of-caenorhabditis-elegans
#3
Ajay Pradhan, Per-Erik Olsson, Jana Jass
The widespread use of phthalates is of major concern as they have adverse effects on many different physiological functions, including reproduction, metabolism and cell differentiation. The aim of this study was to compare the toxicity of the widely-used di (2-ethydlhexyl) phthalate (DEHP) with its substitute, diethyl phthalate (DEP). We analyzed the toxicity of these two phthalates using Caenorhabditis elegans as a model system. Gene expression analysis following exposure during the L1 to young adult stage showed that DEHP and DEP alter the expression of genes involved in lipid metabolism and stress response...
September 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28992791/bisphenol-a-and-di-2-ethylhexyl-phthalate-exert-divergent-effects-on-apoptosis-and-the-wnt-%C3%AE-catenin-pathway-in-zebrafish-embryos-a-possible-mechanism-of-endocrine-disrupting-chemical-action
#4
Ünsal Veli Üstündağ, İsmail Ünal, Perihan Seda Ateş, A Ata Alturfan, Türkan Yiğitbaşı, Ebru Emekli-Alturfan
Polyethylene terephthalate (PET) and polycarbonate (PC) are the most commonly used plastics in water bottles. Di(2-ethylhexyl) phthalate (DEHP) is used as a plasticizer in PET plastics, and bisphenol A (BPA) is used to produce PC. Both DEHP and BPA are known for their potential endocrine disrupting effects. The Wnt/β-catenin signaling pathway has important roles in cell proliferation, cell specification and cell fate determination during embryonic development. Recent reports suggest a link between the Wnt/β-catenin signaling pathway and apoptosis...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28972901/maternal-exposure-to-environmental-dehp-exacerbated-ova-induced-asthmatic-responses-in-rat-offspring
#5
Bohan Wang, Fangwei Liu, Jing Dong, Mingdan You, Yuanyuan Fu, Chao Li, Yiping Lu, Jie Chen
Di (ethylhexyl) phthalate (DEHP) is a commonly used phthalates (PAEs) compound as plasticizer and becomes a severe environmental pollutant worldwide. Studies show that DEHP, as an environmental endocrine disruptor, has potential adverse effects on human. Epidemiologic studies indicate that DEHP is positively correlated to allergic diseases. Maternal exposure to DEHP may contribute to the increasing incidence of allergic diseases in offspring. However, the role of DEHP and its detailed mechanism in allergic disease of the offspring are still unclear...
September 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28957448/pilot-study-on-novel-blood-containers-with-alternative-plasticizers-for-red-cell-concentrate-storage
#6
Yuki Morishita, Yusuke Nomura, Chie Fukui, Tsuyoshi Kawakami, Toshiyuki Ikeda, Tomokazu Mukai, Toshiyasu Yuba, Ken-Ichi Inamura, Hisatoki Yamaoka, Ken-Ichi Miyazaki, Hitoshi Okazaki, Yuji Haishima
Di (2-ethylhexyl) phthalate (DEHP), a typical plasticizer used for polyvinyl chloride (PVC) blood containers, is eluted from the blood containers and exerts protective effects on red blood cells. However, a concern for detrimental effects of DEHP on human health has led to the development of potential DEHP substitutes. Here, we compared the red blood cell preservation ability of two types of non-DEHP blood containers with safe alternative plasticizers to that of DEHP blood containers. Red cell concentrates in mannitol-adenine-phosphate solution (MAP/RCC) were stored for 6 weeks in PVC blood bags containing DEHP, di-isononyl-cyclohexane-1,2-dicarboxylate (DINCH) and di (2-ethylhexyl) 4-cyclohexene-1,2-dicarboxylate (DOTH), or 4-cyclohexene-1,2-dicarboxylic acid dinonyl ester (DL9TH) and DOTH...
2017: PloS One
https://www.readbyqxmd.com/read/28951358/-effect-of-di-2-ethylhcxyl-phthalate-exposure-on-blood-testis-barrier-integrity-in-rats
#7
Lian-Ju Shen, Xiang-Liang Tang, Chun-Lan Long, Xi-Ning Cao, Yi Wei, Yang-Cai Wang, Mang Sun, Yue Zhou, Yang Liu, Bo Liu, Fang-Yuan Huang, Guang-Hui Wei
OBJECTIVE: To investigate mechanism of di-(2-ethylhcxyl)phthalate (DEHP) exposure in causing blood-testis barrier (BTB) impairment in rats. METHODS: Two-months-old male SD rats were randomly divided into corn oil control group and DEHP (750 mg/kg) exposure group for daily intragastic treatment for 30 consecutive days. After the treatments the rats were examined for histomorphological changes of the testicle using HE staining and the expressions of the junction proteins N-cadherin β-catenin, occludin and connexin43 of the BTB using Western blot...
September 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28951174/association-between-urinary-phthalate-metabolites-and-risk-of-breast-cancer-and-uterine-leiomyoma
#8
Zhiqin Fu, Fan Zhao, Kelie Chen, Jinming Xu, Peiwei Li, Dajing Xia, Yihua Wu
OBJECTIVE: The objective of this study was to systematically assess the association between urinary phthalate metabolites and risk of breast cancer and uterine leiomyoma. METHODS: Standard meta-analysis and bioinformatics analysis were conducted based on electronic databases. RESULTS: No significant association was observed between total urinary phthalate metabolites and risk of breast cancer or uterine leiomyoma. However, MECPP was positively associated with breast cancer risk, and DEHP metabolites were associated with increased risk of breast cancer as well as uterine leiomyoma...
September 23, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28939183/urinary-phthalate-metabolite-concentrations-and-maternal-weight-during-early-pregnancy
#9
Andrea Bellavia, Russ Hauser, Ellen W Seely, John D Meeker, Kelly K Ferguson, Thomas F McElrath, Tamarra James-Todd
BACKGROUND: Phthalates are a class of chemicals that may be associated with obesity in non-pregnant populations. Little is known about the association between pregnancy phthalate exposure and maternal obesity. OBJECTIVE: We evaluated the association between early-pregnancy urinary concentrations of specific phthalate metabolites and the distribution of body mass index (BMI, cross-sectional), and early gestational weight gain (GWG, prospective). METHODS: We measured 1st trimester urinary phthalate metabolite concentrations (median 9...
September 12, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28938452/dose-specific-effects-of-di-isononyl-phthalate-on-the-endocannabinoid-system-and-on-liver-of-female-zebrafish
#10
Isabel Forner-Piquer, Francesca Maradonna, Giorgia Gioacchini, Stefania Santangeli, Marco Allarà, Fabiana Piscitelli, Hamid R Habibi, Vincenzo Di Marzo, Oliana Carnevali
Phthalates, used as plasticizers, have become a ubiquitous contaminant and have been reported for their potential to induce toxicity in living organisms. Among them, di-isononyl phthalate (DiNP) has been recently used to replace di(2-ethylhexyl) phthalate (DEHP). Nowadays, there is evidence that DiNP is an endocrine-disrupting chemical; however, little is known about its effects on the endocannabinoid system (ECS) and lipid metabolism. Hence, the aim of our study was to investigate the effects of DiNP on the ECS in zebrafish liver and brain and on hepatic lipid storage...
October 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938100/exposure-to-phthalates-in-patients-with-diabetes-and-its-association-with-oxidative-stress-adiponectin-and-inflammatory-cytokines
#11
Yishuang Duan, Lei Wang, Liping Han, Bin Wang, Hongwen Sun, Liming Chen, Lingyan Zhu, Yi Luo
Epidemiologic studies have revealed higher concentrations of the metabolites of phthalic acid esters (mPAEs) in patients with type 2 diabetes. On the other hand, oxidative stress, adiponectin, and inflammatory cytokines play important roles in the pathogenesis of diabetes and its complications. However, little information is known about the association between exposure to PAEs and these physiological parameters. Hence, paired urine and blood samples were collected from a total of 329 volunteers, and 11 main mPAEs and malondialdehyde (MDA), as a biomarker of oxidative stress, were measured in the urine samples...
September 19, 2017: Environment International
https://www.readbyqxmd.com/read/28935615/early-life-phthalate-exposure-and-adiposity-at-8-years-of-age
#12
Jessica Shoaff, George D Papandonatos, Antonia M Calafat, Xiaoyun Ye, Aimin Chen, Bruce P Lanphear, Kimberly Yolton, Joseph M Braun
BACKGROUND: Early-life phthalate exposure may influence child adiposity, but prior studies have not determined if there are periods of enhanced vulnerability to phthalates. OBJECTIVE: To examine the relationship between child adiposity at 8 y of age and repeated urinary biomarkers of phthalate exposure from gestation through childhood to determine if there are distinct periods of vulnerability. METHODS: In 219 mother-child pairs from Cincinnati, Ohio, we quantified nine urinary phthalate metabolites up to two times prenatally and six times from 1-8 y of age...
September 11, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934723/neural-mechanisms-underlying-the-disruption-of-male-courtship-behavior-by-adult-exposure-to-di-2-ethylhexyl-phthalate-in-mice
#13
Carlos Dombret, Daphné Capela, Kevin Poissenot, Caroline Parmentier, Emma Bergsten, Cédric Pionneau, Solenne Chardonnet, Hélène Hardin-Pouzet, Valérie Grange-Messent, Matthieu Keller, Isabelle Franceschini, Sakina Mhaouty-Kodja
BACKGROUND: Courtship behavior plays a critical role in attracting females and reproduction success. However, the effects of exposure to a ubiquitous contaminant di(2-ethylhexyl) phthalate (DEHP) on these behaviors and, in particular, on courtship vocalizations have not been examined. OBJECTIVE: The effects of adult exposure to DEHP on courtship and mating behaviors and gonadotropic axis and neural mechanisms involved in DEHP-induced effects were analyzed in male mice...
September 1, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934718/urinary-bpa-and-phthalate-metabolite-concentrations-and-plasma-vitamin-d-levels-in-pregnant-women-a-repeated-measures-analysis
#14
Lauren E Johns, Kelly K Ferguson, David E Cantonwine, Thomas F McElrath, Bhramar Mukherjee, John D Meeker
BACKGROUND: In addition to its well-established role in maintaining skeletal health, vitamin D has essential regulatory functions in female reproductive and pregnancy outcomes. Phthalates and bisphenol A (BPA) are endocrine disruptors, and previous research has suggested that these chemical agents may disrupt circulating levels of total 25(OH)D in adults. OBJECTIVES: We investigated the relationships between repeated measures of urinary phthalate metabolites and BPA and circulating total 25(OH)D in a prospective cohort of pregnant women...
August 31, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28921615/plasticizer-di-2-ethylhexyl-phthalate-interferes-with-osteoblastogenesis-and-adipogenesis-in-a-mouse-model
#15
Chen-Yuan Chiu, Shih-Chun Sun, Chih-Kang Chiang, Ching-Chia Wang, Ding-Cheng Chan, Huang-Jen Chen, Shing-Hwa Liu, Rong-Sen Yang
Plasticizer di(2-ethylhexyl)phthalate (DEHP) can leach from medical devices such as blood storage bags and the tubing. Recently, epidemiological studies showed that phthalate metabolites levels in the urine are associated with low bone mineral density (BMD) in older women. The detailed effect and mechanism of DEHP on osteoblastogenesis and adipogenesis and bone loss remain to be clarified. Here, we investigated the effect and mechanism of DEHP and its active metabolite mono(2 -ethylhexyl)phthalate (MEHP) on osteoblastogenesis and adipogenesis...
September 16, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28919451/biphasic-modulation-of-neuro-and-interrenal-steroidogenesis-in-juvenile-african-sharptooth-catfish-clarias-gariepinus-exposed-to-waterborne-di-2-ethylhexyl-phthalate
#16
Augustine Arukwe, Oju R Ibor, Aina O Adeogun
Receptor (i.e. genomic) and non-receptor (or non-genomic) effects of endocrine toxicology have received limited or almost non-existent attention for tropical species and regions. In the present study, we have evaluated the effects of di-(2-ethylhexyl) phthalate (DEHP) on neuro- and interrenal steroidogenesis of the African catfish (Clarias gariepinus) using molecular, immunochemical and physiological approaches. Juvenile fish (mean weight and length: 5.6±0.6g and 8.2±1.2cm, respectively), were randomly distributed into ten 120L rectangular glass tanks containing 60L of dechlorinated tap water, at 50 fish per exposure group...
December 1, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28918855/ion-pair-in-tube-solid-phase-microextraction-for-the-simultaneous-determination-of-phthalates-and-their-degradation-products-in-atmospheric-particulate-matter
#17
M Fernández-Amado, M C Prieto-Blanco, P López-Mahía, S Muniategui-Lorenzo, D Prada-Rodríguez
An in-tube solid phase microextraction, coupled with high-performance liquid chromatography with diode array detection (IT-SPME-HPLC-DAD) method, has been developed for the simultaneous determination of 13 diesters (from dimethyl to dioctylphthalate plus diisobutyl, benzylbutyl, di-2-ethylhexyl, diisononyl and diisodecylphthalate) and 2 monoesters of phthalic acid (mono-butyl and mono-(2-ethylhexyl) phthalate) in particulate matter (PM10). Triethylamine at pH=3 was used as an ion-pair reagent with a double function, of regulating the chromatographic retention of the monoesters and the most hydrophilic diesters on a monolithic silica column, and of improving their extraction on a porous polymer with divinylbenzene-4-vinylpyridine capillary...
September 6, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28915543/effects-of-diisononyl-phthalate-on-danio-rerio-reproduction
#18
Stefania Santangeli, Francesca Maradonna, Maya Zanardini, Valentina Notarstefano, Giorgia Gioacchini, Isabel Forner-Piquer, Hamid Habibi, Oliana Carnevali
Di-isononyl phthalate (DiNP) is a high molecular weight phthalate commonly used as a plasticizer. It was introduced as a replacement for bis (2-ethylhexyl) phthalate (DEHP) which is used in the production of plasticized polyvinyl chloride (PVC). The purpose of this study was to investigate for the first time the effect of DiNP on female reproductive physiology in Danio rerio. Fish were exposed to five different doses of DiNP plus control (0 μg/L; 0.42 μg/L; 4.2 μg/L; 42 μg/L; 420 μg/L; 4200 μg/L) for a period of 21 days...
September 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28915506/maternal-diethylhexyl-phthalate-exposure-affects-adiposity-and-insulin-tolerance-in-offspring-in-a-pcna-dependent-manner
#19
Brian G Hunt, Yuan-Liang Wang, Min-Shan Chen, Shao-Chun Wang, Susan E Waltz
The ubiquitous plasticizer, diethylhexyl phthalate (DEHP), is a known endocrine disruptor. However, DEHP exposure effects are not well understood. Changes in industrial and agricultural practices have resulted in increased prevalence of DEHP exposure and has coincided with the heightened occurrence of metabolic syndrome and obesity. DEHP and its metabolites are detected in the umbilical cord blood of newborns; however, the prenatal and perinatal effects of DEHP exposure have not been intensively studied. Previously, we discovered that phosphorylation (p) of proliferating cell nuclear antigen (PCNA) at tyrosine 114 (Y114) is required for adipogenesis and diet-induced obesity in mice...
November 2017: Environmental Research
https://www.readbyqxmd.com/read/28915396/a-novel-biodegradation-pathway-of-the-endocrine-disruptor-di-2-ethyl-hexyl-phthalate-by-pleurotus-ostreatus-based-on-quantum-chemical-investigation
#20
Miriam Ahuactzin-Pérez, Saúl Tlecuitl-Beristain, Jorge García-Dávila, Ericka Santacruz-Juárez, Manuel González-Pérez, María Concepción Gutiérrez-Ruíz, Carmen Sánchez
Di(2-ethyl hexyl) phthalate (DEHP) is a plasticizer that interfere with endocrine systems in mammals. Growth parameters for Pleurotus ostreatus grown on media containing glucose and different concentrations of DEHP (0, 500 and 1000mg/L) were evaluated. The highest biomass production was observed in medium supplemented with 1000mg of DEHP/L. Half-life of DEHP biodegradation, biodegradation constant of DEHP, and percentage of removal efficiency (%E) were also determined. P. ostreatus degraded 100% of DEHP after 504h...
September 12, 2017: Ecotoxicology and Environmental Safety
keyword
keyword
18972
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"