Chimeric Nitrate Esters and Use of the Same in a Treatment for Depression
申请人:Thatcher Gregory R.J.
公开号:US20090182011A1
公开(公告)日:2009-07-16
Chimeric nitrate esters and their use in the treatment of depression are disclosed. The chimeric nitrate esters also are useful in the treatment of depression and comorbidity associated with aging.
Synthesis of novel organic nitrate esters: guanylate cyclase activation and tissue relaxation
作者:Kexin Yang、Jennifer D. Artz、Jodi Lock、Cristina Sanchez、Brian M. Bennett、Amy B. Fraser、Gregory R. J. Thatcher
DOI:10.1039/p19960001073
日期:——
The syntheses of four novel sulfur-containing nitrate esters are reported, together with data for guanylyl cyclase activation and tissue relaxation.
报告了四种新型含硫硝酸酯的合成以及鸟苷酸环化酶激活和组织松弛的数据。
Nitrate Esters as Nitric Oxide Donors: SS-Nitrates
作者:Sergei I. Zavorin、Jennifer D. Artz、Adina Dumitrascu、Adrian Nicolescu、Dan Scutaru、Stefanie V. Smith、Gregory R. J. Thatcher
DOI:10.1021/ol007022a
日期:2001.4.1
The important biological secondary messenger NO can be generated from exogenous nitrovasodilators and NO donors, Nitrate esters are nitrovasodilators and NO mimetics, believed to be biotransformed to NO in vivo. On the basis of a mechanistic hypothesis, nitrates have been synthesized that release NO at significant rates in neutral aqueous solution in the presence only of added thiol. The novel masked beta -mercaptonitrates reported (SS nitrates), provide information on possible sulfhydryl dependent biotransformation mechanisms for nitrates in clinical use.
Inhibition of Lipid Peroxidation in Synaptosomes and Liposomes by Nitrates and Nitrites
作者:Adrian C. Nicolescu、Sergei I. Zavorin、Nicholas J. Turro、James N. Reynolds、Gregory R. J. Thatcher
DOI:10.1021/tx025529j
日期:2002.7.1
NO is produced endogenously from arginine by the action of NO synthase, and exogenously by nitrovasodilators, including organic nitrates and nitrites. NO has been proposed as a cytotoxic and cytoprotective agent. There is strong evidence that NO acts as an apparent antioxidant in inhibiting lipid peroxidation, via chain termination, and interestingly lipid nitrates and nitrites have been proposed to be products of this chain termination. Both pro- and antioxidant mechanisms may be drawn for nitrates and nitrites; therefore, their effects on lipid peroxidation were measured in two systems, using tocopherol, thiol, and an NO donor for comparison: (1) rat cerebrocortical synaptosomes with Fe(II)-induced lipid peroxidation measured by thiobarbituric acid reactive substances (TBARS), and (2) phospholipid liposomes with an azo-initiator induction system, quantified by a fluorescent probe of peroxide formation. In contrast to the classical nitrate nitroglycerin, novel nitrates which release NO on reaction with thiols and two novel nitrates which spontaneously generate NO in aqueous solution inhibited lipid peroxidation. i-Amyl nitrite inhibited lipid peroxidation, and its properties were further studied with ESR spectroscopy. The data show that classical nitrites and novel nitrates are not prooxidants, but inhibit lipid peroxidation.