The resin monomer triethylene glycol dimethacrylate exhibits reproductive toxicity in male mice

2005 ◽  
Vol 17 (4) ◽  
pp. 401 ◽  
Author(s):  
Homa Darmani ◽  
Ahmad S. Al-Hiyasat
Keyword(s):  
Reproductive Toxicity ◽  
Triethylene Glycol ◽  
Testis Weight ◽  
Male Mice ◽  
Triethylene Glycol Dimethacrylate ◽  
Sperm Counts ◽  
Untreated Female ◽  
Preputial Glands ◽  
Sexually Mature ◽  
Triethyleneglycol Dimethacrylate

The present study evaluated the effect of triethyleneglycol dimethacrylate (TEGDMA) on mouse fertility. Adult male mice were administered TEGDMA (0, 25 and 100 μg kg–1) intragastrically daily for 28 days and then allowed to mate for 10 days with sexually mature untreated female mice; fertility was assessed after a further 10 days. Females mated by males that had been treated with TEGDMA had a significant reduction in pregnancy rate, as well as a significant increase in the total number of resorptions as a percentage of the total number of implantations. Furthermore, the number of animals in which resorption occcurred was increased significantly. Males treated with TEGDMA exhibited a significant reduction in bodyweight, testis weight and the weight of the seminal vesicles and preputial glands. Testicular and epididymal sperm counts, as well as the efficiency of sperm production, were also significantly reduced in TEGDMA-treated males. The results suggest that TEGDMA has adverse effects on the fertility and reproductive system of male mice.

Reproductive Toxicity Evaluation of the Dental Resin Monomer Triethylene Glycol Dimethacrylate (CASRN 109-16-0) in Mice

2013 ◽  
Vol 33 (2) ◽  
pp. 106-115 ◽  
Author(s):  
Lori H. Moilanen ◽  
Janell K. Dahms ◽  
Alan M. Hoberman
Keyword(s):  
Reproductive Toxicity ◽  
Sperm Concentration ◽  
Clinical Signs ◽  
Triethylene Glycol ◽  
Glycol Dimethacrylate ◽  
Dental Resin ◽  
Triethylene Glycol Dimethacrylate ◽  
Male And Female ◽  
Body Weights ◽  
Chemical Abstracts Service

The reproductive toxicity potential of the resin monomer triethylene glycol dimethacrylate (TEGDMA; Chemical Abstracts Service Registry Number 109-16-0) was investigated in male and female Crl:CD1(ICR) mice, 4 dosage groups, 25 mice/sex/group. Formulations of TEGDMA (0, 0.01, 0.1, or 1.0 mg/kg/d) in reverse osmosis-processed deionized water were intubated once daily beginning 28 days before cohabitation and continuing through mating (males) or through gestation day 17 (females). The following parameters were evaluated: viability, clinical signs, body weights, estrous cyclicity, necropsy observations, organ weights, sperm concentration/motility/morphology, cesarean-sectioning and litter observations, and histopathological evaluation of select tissues. No deaths or clinical signs related to TEGDMA occurred. No significant changes in male and female body weights and body weight gains were recorded for any of the administered dosages of TEGMDA. All mating and fertility parameters and all litter and fetal data were considered to be unaffected by dosages of TEGMDA as high as 1 mg/kg/d. Gross or histopathologic tissue changes attributable to the test article were not observed. Reproductive and developmental no observed adverse effect levels (NOAELs) for TEGMDA were 1.0 mg/kg/d, the highest dose tested. Comparison of conservatively estimated TEGDMA exposures from dental treatments to the NOAEL of 1.0 mg/kg/d identified in this study indicates margins of exposure of at least 120- to 3000-fold depending on the exposure scenario. The results of this study support the continued safe use of TEGDMA in polymeric dental products applied according to the manufacturers’ instructions.

scholarly journals A Low-Viscosity BisGMA Derivative for Resin Composites: Synthesis, Characterization, and Evaluation of Its Rheological Properties

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 338
Author(s):  
Ali Alrahlah ◽  
Abdel-Basit Al-Odayni ◽  
Haifa Fahad Al-Mutairi ◽  
Bashaer Mousa Almousa ◽  
Faisal S. Alsubaie ◽  
...  
Keyword(s):  
Substantial Reduction ◽  
Triethylene Glycol ◽  
High Viscosity ◽  
Resin Matrix ◽  
Resonance Spectroscopy ◽  
Dental Resin ◽  
Triethylene Glycol Dimethacrylate ◽  
Oh Groups ◽  
Low Viscosity ◽  
13C Nuclear Magnetic Resonance

This study aimed to synthesize new bisphenol A-glycidyl methacrylate (BisGMA) derivatives, targeting a reduction in its viscosity by substituting one of its OH groups, the leading cause of its high viscosity, with a chlorine atom. Hence, this monochloro-BisGMA (mCl-BisGMA) monomer was synthesized by Appel reaction procedure, and its structure was confirmed using Fourier transform infrared spectroscopy, 1H and 13C-nuclear magnetic resonance spectroscopy, and mass spectroscopy. The viscosity of mCl-BisGMA (8.3 Pa·s) was measured under rheometry conditions, and it was found to be more than 65-fold lower than that of BisGMA (566.1 Pa·s) at 25 °C. For the assessment of the viscosity changes of model resins in the presence of mCl-BisGMA, a series of resin matrices, in which, besides BisGMA, 50 wt % was triethylene glycol dimethacrylate, were prepared and evaluated at 20, 25, and 35 °C. Thus, BisGMA was incrementally replaced by 25% mCl-BisGMA to obtain TBC0, TBC25, TBC50, TBC75, and TBC100 blends. The viscosity decreased with temperature, and the mCl-BisGMA content in the resin mixture increased. The substantial reduction in the viscosity value of mCl-BisGMA compared with that of BisGMA may imply its potential use as a dental resin matrix, either alone or in combination with traditional monomers. However, the various properties of mCl-BisGMA-containing matrices should be evaluated.

Development of Branching in Atom Transfer Radical Copolymerization of Styrene with Triethylene Glycol Dimethacrylate

2009 ◽  
Vol 42 (16) ◽  
pp. 5976-5982 ◽  
Author(s):  
Hong-Jun Yang ◽  
Bi-Biao Jiang ◽  
Wen-Yan Huang ◽  
Dong-Liang Zhang ◽  
Li-Zhi Kong ◽  
...  
Keyword(s):  
Triethylene Glycol ◽  
Radical Copolymerization ◽  
Atom Transfer ◽  
Glycol Dimethacrylate ◽  
Triethylene Glycol Dimethacrylate

scholarly journals Synthesis and research of photocurable protective coatings on the basis of olygoesteracrylates

2020 ◽  
Vol 7 (4) ◽  
pp. 229-232
Author(s):  
O. A. Karsakova ◽  
M. V. Kuzmin
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Glycol ◽  
Methacrylic Acid ◽  
Protective Coatings ◽  
Physical And Mechanical Properties ◽  
Triethylene Glycol ◽  
Glycol Dimethacrylate ◽  
Triethylene Glycol Dimethacrylate ◽  
Rotary Viscometer ◽  
Acid Esters

In this work, photocurable protective coatings based on methacrylic acid esters have been developed and their physical and mechanical properties have been investigated. The photocurable compositions were obtained by mixing at different ratios the following methacrylic acid esters: polyethylene glycol dimethacrylate 400 and triethylene glycol dimethacrylate ether, polyethylene glycol dimethacrylate 400 and oligourethane dimethacrylate, polyethylene glycol dimethacrylate 400 and pentaerythritol tetraacrylate. For the obtained compositions, the viscosity was studied using a Brookfield rotary viscometer. To initiate polymerization, a mixture of initiators was used: benzoyl peroxide and benzoin. Curing of the obtained compositions was carried out under the influence of UV rays for 2-5 minutes. For photo-cured compositions, their physical and mechanical properties have been studied. It was found that the composition based on polyethylene glycol dimethacrylate modified with triethylene glycol dimethacrylate at a ratio of 70:30 has the highest strength.

scholarly journals Effect of Vincristine on Steroidogenic Pathway of Male Wistar Rat

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Tareeka Sonawane ◽  
Hersharan Nischal ◽  
Shalini Rao ◽  
Liji Thayil ◽  
Dayanand Bhiwgade
Keyword(s):  
Reproductive Toxicity ◽  
Physiological Saline ◽  
Wistar Rat ◽  
Testis Weight ◽  
Testosterone Production ◽  
Expression Studies ◽  
End Of Treatment ◽  
Major Player ◽  
Male Wistar Rats ◽  
Steroidogenic Acute Regulatory

Vincristine is major player in front line combination chemotherapy for treatment of cancer and shows decrease in testosterone after treatment contributing to reproductive toxicity. Hence, the present research was aimed to study the effect of vincristine on steroidogenic pathway which is responsible for testosterone production in males. Vincristine was intraperitoneally injected to adult male Wistar rats of proven fertility with a dose of 40μg/kg/day dissolved in 0.5 ml of physiological saline for 30 days. Animals were sacrificed at the end of treatment period; their testes were removed and used for further studies. No significant changes were observed in body weight, testis weight and mean relative testis weight. Expression studies of enzymes involved in steroidogenic pathway showed that there was decrease in expression of Steroidogenic acute regulatory (StAR) protein which might be responsible for altered testosterone production.

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