Abstract：
:Polycyclic aromatic hydrocarbons (PAH) are carcinogens requiring metabolic activation to react with cellular macromolecules, the initial event in carcinogenesis. Cytochrome P450 mediates binding of PAH to DNA by two pathways of activation. One-electron oxidation to form radical cations is the major pathway of activation for the most potent carcinogenic PAH, whereas monooxygenation to form bay-region diol epoxides is generally a minor pathway. For benzo[a]pyrene and 7,12-dimethylbenz[a]-anthracene, 80% and 99%, respectively, of the DNA adducts formed by rat liver microsomes or in mouse skin arise via the radical cation. Therefore, studies of PAH activation should begin by considering one-electron oxidation as the primary mechanism.
journal_name
Pharmacol Therjournal_title
Pharmacology & therapeuticsauthors
Cavalieri EL,Rogan EGdoi
10.1016/0163-7258(92)90015-rsubject
Has Abstractpub_date
1992-01-01 00:00:00pages
183-99issue
2eissn
0163-7258issn
1879-016Xpii
0163-7258(92)90015-Rjournal_volume
55pub_type
杂志文章,评审abstract：:Mechanistic insights of cancer immunology have led to the development of immune checkpoint blockade therapy (ICBT), which has elicited a remarkable clinical response in some cancer patients. Increasing evidence suggests that activation of oncogenic pathways, such as RAS/RAF/MAPK and PI3K signaling, impairs the antitum...
journal_title：Pharmacology & therapeutics
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abstract：:Mesenchymal stem cells (MSCs) are multipotent tissue stem cells that differentiate into a number of mesodermal tissue types, including osteoblasts, adipocytes, chondrocytes and myofibroblasts. MSCs were originally identified in the bone marrow (BM) of humans and other mammals, but recent studies have shown that they a...
journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
pub_type： 杂志文章,评审
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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更新日期：2001-02-01 00:00:00
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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journal_title：Pharmacology & therapeutics
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abstract：:Proarrhythmic susceptibility to drug-induced Torsades de Pointes is restricted to individuals with a predisposed phenotype characterized by a reduced repolarization reserve. Additional factors are often involved in a further impairment of repolarization, possibly culminating with dangerous ventricular polymorphic tach...
journal_title：Pharmacology & therapeutics
pub_type： 杂志文章,评审
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abstract：:Nitric oxide (NO) exerts a variety of biological actions under both physiological and pathological conditions. NO is synthesized by three distinct NO synthase (NOS) isoforms, including neuronal (nNOS), inducible (iNOS), and endothelial NOS (eNOS), all of which are expressed in the human cardiovascular system. The role...
journal_title：Pharmacology & therapeutics
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abstract：:The thyroid hormone (TH; 3,3',5,5'-tetra-iodothyronine and 3,3',5'-triiodothyronine) regulates growth, development, and critical metabolic functions. Thyroid diseases are among the most prevalent group of metabolic disorders in the Western world. TH exerts effects through complex biological pathways, which offer a wea...
journal_title：Pharmacology & therapeutics
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