Renal-selective prodrugs for control of renal sympathetic nerve activity in the treatment of hypertension
申请人:G.D. Searle & Co.
公开号:US20030220521A1
公开(公告)日:2003-11-27
Renal-selective prodrugs are described which are preferentially converted in the kidney to compounds capable of inhibiting synthesis of catecholamine-type neurotransmitters involved in renal sympathetic nerve activity. The prodrugs described herein are derived from inhibitor compounds capable of inhibiting one or more of the enzymes involved in catecholamine synthesis, such compounds being classifiable as tyrosine hydroxylase inhibitors, or as dopa-decarboxylase inhibitors, or as dopamine-&bgr;-hydroxylase inhibitors. These inhibitor compounds are linked to a chemical moiety, such as a glutamic acid derivative, by a cleavable bond which is recognized selectively by enzymes located predominantly in the kidney. The liberated inhibitor compound is then available in the kidney to inhibit one or more of the enzymes involved in catecholamine synthesis. Inhibition of renal catecholamine synthesis can suppress heightened renal nerve activity associated with sodium-retention related disorders such as hypertension. Conjugates of particular interest are glutamyl derivatives of dopamine-&bgr;-hydroxylase inhibitors, of which N-acetyl-&ggr;-glutamyl fusaric acid hydrazide (shown below) is preferred.
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(EN) A pharmaceutical composition which comprises a mixture of an alpha-2 adrenoceptor antagonist, preferably idazoxan, or a pharmaceutically acceptable salt thereof, and either a catecholamine precursor or an inhibitor of aromatic L-amino acid decarboxylase, preferably carbidopa. The compositions can be used for treatment of endogenous depression or low blood pressure.(FR) Composition pharmaceutique comprenant un mélange d'un antagoniste d'adrenocepteur alpha-2, de préférence de l'idazoxan ou un sel pharmaceutiquement acceptable de celui-ci, et soit un précurseur de cathécholamine soit un inhibiteur de décarboxylase d'acide aminé-L aromatique, de préférence du carbidopa. On peut utiliser les compositions pour le traitement de dépressions endogènes ou de la pression sanguine basse.
Renal-selective prodrugs for control of renal smpathetic nerve activity in the treatment of hypertension
申请人:G.D. Searle & Co.
公开号:US20040101523A1
公开(公告)日:2004-05-27
Renal-selective prodrugs are described which are preferentially converted in the kidney to compounds capable of inhibiting synthesis of catecholamine-type neurotransmitters involved in renal sympathetic nerve activity. The prodrugs described herein are derived from inhibitor compounds capable of inhibiting one or more of the enzymes involved in catecholamine synthesis, such compounds being classifiable as tyrosine hydroxylase inhibitors, or as dopa-decarboxylase inhibitors, or as dopamine-&bgr;-hydroxylase inhibitors. These inhibitor compounds are linked to a chemical moiety, such as a glutamic acid derivative, by a cleavable bond which is recognized selectively by enzymes located predominantly in the kidney. The liberated inhibitor compound is then available in the kidney to inhibit one or more of the enzymes involved in catecholamine synthesis. Inhibition of renal catecholamine synthesis can suppress heightened renal nerve activity associated with sodium-retention related disorders such as hypertension. Conjugates of particular interest are glutamyl derivatives of dopamine-&bgr;-hydroxylase inhibitors, of which N-acetyl-&ggr;-glutamyl fusaric acid hydrazide (shown below) is preferred.
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Modulation of cellular DNA repair activity to intercept malignancy
申请人:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
公开号:US10188617B2
公开(公告)日:2019-01-29
Disclosed herein are methods for identifying compounds that enhance base excision repair, as well as compounds identified thereby and methods of using such compounds in the interception of malignancy, i.e. the prevention of progression of a disease from a state of susceptibility to active disease. Exemplified compounds are acetohexamide and related compounds, as well as benserazide and analogs thereof. Exemplified malignancies are those of human breast cells carrying mutations, in particular, SUM149 cells and HCC1937 cells, which cells carry BRCA1 mutations.