Results 1 to 10 of about 319,930 (224)

Protection of HT22 neuronal cells against chemically-induced ferroptosis by catechol estrogens: protein disulfide isomerase as a mechanistic target [PDF]

open access: yesScientific Reports
Ferroptosis is a form of regulated cell death, characterized by excessive iron-dependent lipid peroxidation. Biochemically, ferroptosis can be selectively induced by erastin through glutathione depletion or through inhibition of glutathione peroxidase 4 ...
Xuanqi Huang, Ming-Jie Hou, Bao Ting Zhu
doaj   +3 more sources

Schistosome and liver fluke derived catechol-estrogens and helminth associated cancers [PDF]

open access: yesFrontiers in Genetics, 2014
Infection with helminth parasites remains a persistent public health problem in developing countries. Three of these pathogens, the liver flukes Clonorchis sinensis, Opisthorchis viverrini and the blood fluke Schistosoma haematobium, are of particular ...
José M Correia da Costa   +13 more
doaj   +3 more sources

Catechol-O-methyl transferase suppresses cell invasion and interplays with MET signaling in estrogen dependent breast cancer

open access: yesScientific Reports, 2023
Catechol-O-methyl transferase (COMT) is involved in detoxification of catechol estrogens, playing cancer-protective role in cells producing or utilizing estrogen. Moreover, COMT suppressed migration potential of breast cancer (BC) cells.
Lucia Janacova   +8 more
doaj   +2 more sources

Urinary estrogen metabolites and self-reported infertility in women infected with Schistosoma haematobium. [PDF]

open access: yesPLoS ONE, 2014
BackgroundSchistosomiasis is a neglected tropical disease, endemic in 76 countries, that afflicts more than 240 million people. The impact of schistosomiasis on infertility may be underestimated according to recent literature.
Júlio Santos   +16 more
doaj   +3 more sources

Oral contraceptives containing ethinyl estradiol and drospirenone increase hydroxylation and methylation of endogenous estrogen but not genotoxic estrogen DNA-adduct formation [PDF]

open access: yesScientific Reports
Combined oral contraceptives (COCs) are commonly prescribed for the prevention of pregnancy, as well as numerous other non-contraceptive health reasons.
Gerda Venter   +4 more
doaj   +2 more sources

Genome-wide mapping and quantification of DNA damage induced by catechol estrogens using Click-Probe-Seq and LC-MS2 [PDF]

open access: yesCommunications Biology
Genotoxic estrogen metabolites generate various DNA lesions; however, their target genes and carcinogenic mechanisms remain unexplored. Here, genome-wide sequencing using click probe enrichment coupled with liquid chromatography-tandem mass spectrometry (
Quynh-Trang Do   +5 more
doaj   +2 more sources

Endogenous estrogen metabolites as oxidative stress mediators and endometrial cancer biomarkers [PDF]

open access: yesCell Communication and Signaling
Background Endometrial cancer is the most common gynecologic malignancy found in developed countries. Because therapy can be curative at first, early detection and diagnosis are crucial for successful treatment.
Katarzyna Bukato   +4 more
doaj   +2 more sources

Raloxifene and desmethylarzoxifene block estrogen-induced malignant transformation of human breast epithelial cells. [PDF]

open access: yesPLoS ONE, 2011
There is association between exposure to estrogens and the development and progression of hormone-dependent gynecological cancers. Chemical carcinogenesis by catechol estrogens derived from oxidative metabolism is thought to contribute to breast cancer ...
Irida Kastrati   +7 more
doaj   +1 more source

Nordihydroguaiaretic Acid as a Novel Substrate and Inhibitor of Catechol O-Methyltransferase Modulates 4-Hydroxyestradiol-Induced Cyto- and Genotoxicity in MCF-7 Cells

open access: yesMolecules, 2021
Nordihydroguaiaretic acid (NDGA) is a major lignan metabolite found in Larrea spp., which are widely used in South America to treat various diseases. In breast tissue, estradiol is metabolized to the catechol estrogens such as 4-hydroxyestradiol (4-OHE2),
Jin-Hee Kim   +5 more
doaj   +1 more source

Analytical methodologies for sensing catechol-O-methyltransferase activity and their applications

open access: yesJournal of Pharmaceutical Analysis, 2021
Mammalian catechol-O-methyltransferases (COMT) are an important class of conjugative enzymes, which play a key role in the metabolism and inactivation of catechol neurotransmitters, catechol estrogens and a wide range of endobiotics and xenobiotics that ...
Fang-Yuan Wang   +7 more
doaj   +1 more source

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