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... Non peptide, selective, Neurokinin type 1 (NK 1) receptors antagonist Block substance P from binding to NK1 receptor Broader spectrum and activity in delayed emesis (In Preclinical studies) Augment the antiemetic activity of 5HT3 receptor antagonists and dexamethasone Inhibit both acute and delayed ...
Eawag News 70: Do transformation products pose environmental
Eawag News 70: Do transformation products pose environmental

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united states securities and exchange commission - corporate
united states securities and exchange commission - corporate

... Cerecor has one preclinical stage asset, CERC-406, a brain penetrant catechol‑O‑methyltransferase inhibitor with potential procognitive activity. For more information about the Company and its products, please visit www.cerecor.com or contact Mariam E. Morris, Chief Financial Officer, at (443) 304- ...
drugs acting on the respiratory system bronchial asthma
drugs acting on the respiratory system bronchial asthma

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File

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Chemical Mixtures in the Environment: Endocrine
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L9-rhinitis and coug..

...  Adhesivness; Steam inhalation Breakdown S-S bonds in glycoproteins by its reducing SH Gp  less viscid mucous; N-Acetyl Cysteine Synthesize serous mucus (sialomucins of smaller-size) so it is secretolytic + activate ciliary clearance & transport; Bromohexine & Ambroxol Cleavage of extracellular ba ...
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Toxicodynamics



Toxicodynamics, termed pharmacodynamics in pharmacology, describes the dynamic interactions of a toxicant with a biological target and its biological effects. A biological target, also known as the site of action, can be binding proteins, ion channels, DNA, or a variety of other receptors. When a toxicant enters an organism, it can interact with these receptors and produce structural or functional alterations. The mechanism of action of the toxicant, as determined by a toxicant’s chemical properties, will determine what receptors are targeted and the overall toxic effect at the cellular level and organismal level.Toxicants have been grouped together according to their chemical properties by way of quantitative structure-activity relationships (QSARs), which allows prediction of toxic action based on these properties. endocrine disrupting chemicals (EDCs) and carcinogens are examples of classes of toxicants that can act as QSARs. EDCs mimic or block transcriptional activation normally caused by natural steroid hormones. These types of chemicals can act on androgen receptors, estrogen receptors and thyroid hormone receptors. This mechanism can include such toxicants as dichlorodiphenyltrichloroethane (DDE) and polychlorinated biphenyls (PCBs). Another class of chemicals, carcinogens, are substances that cause cancer and can be classified as genotoxic or nongenotoxic carcinogens. These categories include toxicants such as polycyclic aromatic hydrocarbon (PAHs) and carbon tetrachloride (CCl4). The process of toxicodynamics can be useful for application in environmental risk assessment by implementing toxicokinetic-toxicodynamic (TKTD) models. TKTD models include phenomenas such as time-varying exposure, carry-over toxicity, organism recovery time, effects of mixtures, and extrapolation to untested chemicals and species. Due to their advantages, these types of models may be more applicable for risk assessment than traditional modeling approaches.
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