ethyl acrylate/zhubný nádor

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Tripropylene glycol diacrylate but not ethyl acrylate induces skin tumors in a twenty-week short-term tumorigenesis study in Tg.AC (v-Ha-ras) mice.

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The toxicity of the esters of acrylic acid are poorly understood even though significant human exposure occurs. To conduct rapid comparative short-term bioassays, we used the Tg.AC (v-Ha-ras) transgenic mouse model to determine the toxicity and potential carcinogenicity of tripropylene glycol

Evaluation of potential human carcinogenicity of the synthetic monomer ethyl acrylate.

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Ethyl acrylate (EA) is an acrylic monomer used in the manufacture of a variety of polymers and copolymers as components of many commercially important products. Human exposure to EA occurs primarily in the workplace via inhalation or dermal contact. In F344 rat and B6C3F(1) mouse studies of EA

Sustainability of forestomach hyperplasia in rats treated with ethyl acrylate for 13 weeks and regression after cessation of dosing.

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In a chronic study conducted by the National Toxicology Program (NTP), gavage administration of 100 or 200 mg ethyl acrylate (EA)/kg/day, 5 days/week, to F344 rats and B6C3F1 mice resulted in a significant dose-dependent increase in the incidence of squamous cell papillomas and carcinomas of the

Ethyl acrylate distribution, macromolecular binding, excretion, and metabolism in male Fisher 344 rats.

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We have demonstrated previously that ethyl acrylate causes severe acute forestomach (nonglandular portion of the stomach) toxicity in rats. Ethyl acrylate was also shown to cause forestomach tumors when administered to rats chronically by gavage. The current studies were designed to investigate

Relationship between the time of sustained ethyl acrylate forestomach hyperplasia and carcinogenicity.

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Chronic administration of ethyl acrylate (EA) by gavage at 100 or 200 mg/kg/day resulted in a significant dose-dependent increase in the incidence of forestomach (FS) squamous cell papillomas and carcinomas in both sexes of F344 rats and B6C3F1 mice. Subsequent work in this laboratory was designed

NTP Carcinogenesis Studies of Ethyl Acrylate (CAS No. 140-88-5) in F344/N Rats and B6C3F1 Mice (Gavage Studies).

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Ethyl acrylate is a monomer used to produce polymers and copolymers for use in latex paints, textiles, paper coatings, fabric finishes, dirt release agents, and specialty plastics. In 1980, 268 million pounds of ethyl acrylate were produced in the United States of which 209 million pounds were used

Multi-responsive nanogels containing motifs of ortho ester, oligo(ethylene glycol) and disulfide linkage as carriers of hydrophobic anti-cancer drugs.

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A family of multi-responsive nanogels with different compositions and crosslinking degrees have been prepared by the miniemulsion copolymerization of monomethyl oligo(ethylene glycol) acrylate (OEGA) and an ortho ester-containing acrylic monomer, 2-(5,5-dimethyl-1,3-dioxan-2-yloxy) ethyl acrylate

Thresholds of carcinogenicity of flavors.

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Fifteen compounds approved by the FEMA (Flavor and Extract Manufacturers Association) expert panel as GRAS (Generally Recognized As Safe) and structurally related compounds have been reported to be carcinogenic in rodent studies. The dose response of the 15 compounds in these studies was scrutinized

One-step preparation of reduction-responsive cross-linked gemcitabine prodrug micelles for intracellular drug delivery.

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A cross-linkable gemcitabine (GEM)-containing reduction-sensitive polymeric micelles based on the copolymer poly(PEG-co-CMA-co-GEM) was successfully fabricated. The copolymer which synthesized by one-step radical copolymerization of poly(ethylene glycol) methacrylate (PEGMA),

Association of chemically induced forestomach cell proliferation and carcinogenesis.

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A number of chemicals have been shown to cause malignant neoplasms in the forestomach of Fischer 344 rats when administered chronically by gavage. The present study was designed to identify early forestomach lesions following 2-week repeated gavage administration of some of these forestomach

Aza-Michael Mono-addition Using Acidic Alumina under Solventless Conditions.

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Aza-Michael reactions between primary aliphatic and aromatic amines and various Michael acceptors have been performed under environmentally-friendly solventless conditions using acidic alumina as a heterogeneous catalyst to selectively obtain the corresponding mono-adducts in high yields. Ethyl

Synthesis and anticancer activity of some new thiopyrano[2,3-d]thiazoles incorporating pyrazole moiety.

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The knöevenagel condensation of 3-phenyl-4-thioxo-2-thiazolidinone (1) with 1-phenyl-3-aryl-1H-pyrazole-4-carbaldehydes 2a-d in refluxing glacial acetic acid or in polyethylene glycol-400 (PEG-400) at room temperature without catalyst, afforded the corresponding 5-hetarylmethylene derivatives 3a-d.

Polymeric mesoporous silica nanoparticles as a pH-responsive switch to control doxorubicin intracellular delivery.

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Cancer is a leading cause of death. Mesoporous nanomaterials with stimuli sensitivity have received increasing interest as efficient anti-cancer drug carriers. Here, we report hybrid mesoporous nanoparticles of PEGylated silica-poly[2-(dimethylamino)ethyl acrylate] (PEGylated MSN-g-PDMAEA) that can

pH and redox dual responsive nanoparticle for nuclear targeted drug delivery.

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To mimic the clinic dosing pattern, initially administering high loading dose and then low maintenance dose, we designed a novel poly(2-(pyridin-2-yldisulfanyl)ethyl acrylate) (PDS) based nanoparticle delivery system. Side chain functional PDS was synthesized by free radical polymerization.

How can we improve the physical stability of co-amorphous system containing flutamide and bicalutamide? The case of ternary amorphous solid dispersions.

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The article describes the preparation and characterization of binary mixtures of two antiandrogens used in prostate cancer treatment, i.e. flutamide (FL) and bicalutamide (BIC), as well as their ternary mixtures with either poly(methyl methacrylate-co-ethyl acrylate) (MMA/EA) or polyvinylpyrrolidone

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