7-NINA - CAS 161467-34-1
Category: Inhibitor
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Molecular Formula:
C7H4N3O2Na
Molecular Weight:
185.12
COA:
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Targets:
Nitric oxide synthase (NOS)
Description:
7-NINA is a non-selective NOS inhibitor.
Purity:
≥98%
Synonyms:
7-Nitroindazole monosodium salt
MSDS:
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InChIKey:
DJMLKKIIBMJGIQ-UHFFFAOYSA-N
InChI:
InChI=1S/C7H4N3O2.Na/c11-10(12)6-3-1-2-5-4-8-9-7(5)6;/h1-4H;/q-1;+1
Canonical SMILES:
C1=CC2=C[N-]N=C2C(=C1)[N+](=O)[O-].[Na+]
1.Adrenomedullin acts in the lateral parabrachial nucleus to increase arterial blood pressure through mechanisms mediated by glutamate and nitric oxide.
Geambasu A;Krukoff TL Am J Physiol Regul Integr Comp Physiol. 2008 Jul;295(1):R38-44. doi: 10.1152/ajpregu.00172.2008. Epub 2008 May 21.
Adrenomedullin (ADM) acts in a site-specific manner within autonomic centers of the brain to modulate mean arterial pressure (MAP). To determine the role of ADM in the pontine autonomic center, the lateral parabrachial nucleus (LPBN), we used urethane-anesthetized adult Sprague-Dawley male rats to test the hypothesis that ADM increases MAP at this site through glutamate- and nitric oxide (NO)-dependent mechanisms. ADM microinjected into the LPBN increased MAP in a dose-dependent manner. The pressor effect of ADM (0.01 pmol) had a peak value of 11.9 +/- 1.9 mmHg at 2 min and lasted for 7 min. We demonstrated that ADM's effect is receptor mediated by blocking the effect with the ADM receptor antagonist, ADM22-52. We showed that glutamate mediates ADM's pressor response, as this response was blocked using coinjections of ADM with dizolcipine hydrogen maleate or 6-cyano-7-nitroquinoxaline-2,3-dione, N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptor antagonists, respectively. We tested the roles of NO with coinjections of ADM with either N5-(1-iminoethyl)-L-ornithine or 7-nitroindazole monosodium salt, nonspecific and neuronal NO synthase (NOS) inhibitors, respectively; both inhibitors blocked ADM's pressor effect.
2.Estrogen in the paraventricular nucleus attenuates L-glutamate-induced increases in mean arterial pressure through estrogen receptor beta and NO.
Gingerich S;Krukoff TL Hypertension. 2006 Dec;48(6):1130-6. Epub 2006 Oct 30.
Estrogen (E2) acts in the brain to decrease blood pressure (BP) responses to psychological stress. A likely site for the effects of E2 is the hypothalamic paraventricular nucleus (PVN), an important regulator of autonomic functions. We studied the effects of E2 in the PVN on BP and heart rate (HR) responses to l-glutamate injections into the PVN of male urethane-anesthetized rats. Microinjections of l-glutamate (50 nmol) into the PVN increased BP by 14+/-2.5 mm Hg and HR by 30+/-5.6 bpm. Microinjections of E2 (0.1, 1, and 10 pmol) into the PVN 30 minutes before l-glutamate dose-dependently attenuated the pressor response by 25%, 34%, and 59%, respectively, but did not affect HR. We determined that E2 receptor (ER) beta mediates the effect of E2, because activation of ERbeta with diarylpropionitrile (50 pmol) attenuated the response by 57%, whereas activation of ERalpha with propyl-pyrazole-triol (20 pmol) had no effect. Furthermore, inhibition of ERbeta with R,R-tetrahydrochrysene (50 pmol) blocked the effect of E2, but inhibition of ERalpha with methyl-piperidino-pyrazole (1 nmol) did not. Finally, we found that the effect of E2 is mediated by NO, because the NO synthase (NOS) inhibitor, N(G)-nitro-l-arginine methyl ester (2 nmol), the neuronal NOS inhibitor, 7-nitroindazole sodium salt (0.
3.Nuclear Ca(++)-influx, Ca (++)/calmodulin-dependent protein kinase IV activity and CREB protein phosphorylation during post-hypoxic reoxygenation in neuronal nuclei of newborn piglets: the role of nitric oxide.
Mishra OP;Zubrow AB;Ashraf QM;Delivoria-Papadopoulos M Neurochem Res. 2006 Dec;31(12):1463-71. Epub 2006 Nov 8.
The present study tests the hypothesis that post-hypoxic reoxygenation results in an nitric oxide (NO)-mediated increase in nuclear Ca(++)-influx, increased calmodulin kinase (CaM kinase) IV activity, and increased Ser(133) phosphorylation of cyclic AMP response element binding (CREB) protein in neuronal nuclei of the cerebral cortex of newborn piglets. Piglets were divided into normoxic (Nx), hypoxic (Hx, FiO(2) = 0.07 for 1 h), hypoxic with 6 h reoxygenation (Hx + reox), and Hx + reox injected with 7-nitroindazole sodium salt (7-NINA), a nNOS inhibitor, immediately after hypoxia (Hx + 7-NINA). Cerebral tissue hypoxia was documented by ATP and phosphocreatine (PCr) levels. Nuclear Ca(++)-influx was determined using (45)Ca(++) and CaM kinase IV activity determined by (33)P-incorporation into syntide-2. Ser(133) phosphorylation of CREB protein was determined by Western blot analysis using a specific anti-phosphorylated Ser(133)-CREB protein antibody. ATP and PCr values in Hx, Hx + reox, and Hx + 7-NINA were significantly different from Nx (P < 0.05 versus Nx). Ca(++)-influx (pmoles/mg protein/min) was 3.79 +/- 0.91 in Nx; 11.81 +/- 2.54 in Hx (P < 0.05 versus Nx), 16.55 +/- 3.55 in Hx + reox (P < 0.
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CAS 161467-34-1 7-NINA

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