AI Article Synopsis

  • Two nitrosation products of hexamethylenetetramine were synthesized, specifically 1,3,5-trinitrosohexahydro-1,3,5-triazine and 3,7-dinitroso-1,3,5,7-tetrazabicyclo[3.3.1]nonane.
  • Both compounds were shown to produce nitric oxide in vitro at different rates when tested at body temperature and neutral pH.
  • In rats, both compounds reduced thrombus formation in blood vessels, while compound 2 did not affect blood pressure in hypertensive rats.

Article Abstract

Two nitrosation products of hexamethylenetetramine, namely 1,3,5-trinitrosohexahydro-1,3,5-triazine (1) and 3,7-dinitroso- 1,3,5,7-tetrazabicyclo[3.3.1]nonane (2), were synthesized. It is shown that both compounds in vitro at 37 degrees C (1 h, pH 7.4) form nitric oxide at a rate of 3.1% (1) or 1.3% (2), respectively. In rats (60 mg/kg p.o.) both compound inhibit thrombus formation in arterioles (1: 20%; 2: 16%) and venules (1: 18%; 2: 9%). Compound 2 does not influence the blood pressure in spontaneously hypertensive rats.

Download full-text PDF

Source
http://dx.doi.org/10.1002/(sici)1521-4184(19997)332:7<255::aid-ardp255>3.0.co;2-rDOI Listing

Publication Analysis

Top Keywords

nitrosation products
8
products hexamethylenetetramine
8
donors antithrombotic
4
antithrombotic vasodilating
4
vasodilating activities
4
activities nitrosation
4
hexamethylenetetramine nitrosation
4
hexamethylenetetramine 135-trinitrosohexahydro-135-triazine
4
135-trinitrosohexahydro-135-triazine 37-dinitroso-
4
37-dinitroso- 1357-tetrazabicyclo[331]nonane
4

Similar Publications

A cytochrome repressed by a MarR family regulator confers resistance to metals, nitric oxide, sulfide, and cyanide in .

Appl Environ Microbiol

January 2025

Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil.

Unlabelled: is a ubiquitous environmental pathogen. Despite its remarkable adaptability, little is known about the mechanisms of stress resistance in this bacterium. Here, in a screen for iron-susceptible transposon mutants, we identified a cytochrome that protects against multiple stresses.

View Article and Find Full Text PDF

Introduction: Temporomandibular disorders have a multifactorial etiology including biological, biomechanical, neuromuscular, and biopsychosocial factors. Current research on temporomandibular disorders focuses on identifying clinically relevant biomarkers thus creating a new way of thinking about this dysfunction. The aim of the study was to determine the relationship between salivary/blood concentrations of oxidative/nitrosative stress biomarkers and biopsychosocial findings in patients with temporomandibular disorder-myofascial pain with referral.

View Article and Find Full Text PDF

Development of a Simultaneous Analytical Method for Amines Corresponding to 10 Typical Nitrosamines.

ACS Omega

January 2025

Towa Pharmaceutical Co., Ltd., 2-11 Shinbashi-cho, Kadoma, Osaka 571-8580, Japan.

Regulatory authorities in various countries have successively issued notices and guidance to pharmaceutical manufacturers and distributors to evaluate the risk of contamination of nitrosamines in pharmaceutical products and to take appropriate measures. Analysis of nitrosamines in pharmaceutical products is not easy due to the large number of foreign substances, and the risk of contamination is determined by first conducting a desk investigation of the manufacturing process of the APIs or pharmaceutical products. However, a desk investigation may miss the risk since this method is not based on actual measurements.

View Article and Find Full Text PDF

Alkaloids and nitrosamines in betel quid: A biochemical exploration of carcinogenicity.

Chem Biol Interact

February 2025

Department of Community Dental Health, Faculty of Dental Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka.

Betel quid contains two major ingredients; Areca catechu and Piper betel, often consumed with slaked lime, tobacco, certain flavouring agents, colouring agents, herbs, and spices according to personal preferences. The areca nut alkaloids (arecoline, arecaidine, guvacine, and guvacoline), and tobacco alkaloids (nicotine, nornicotine) undergo nitrosation during chewing in the oral cavity with the presence of nitrite and thiocyanate and endogenously. Among the nitrosation products generated areca nut-derived nitrosamine (ADNA): 3-(methylnitrosamino) Propionitrile (MNPN) and the two tobacco-specific nitrosamines (TSNAs); N'-nitrosonornicotine (NNN) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone) (NNK) are considered Group 1 human carcinogens.

View Article and Find Full Text PDF

Unlabelled: Lipopolysaccharide (LPS), a gut-derived endotoxin, is a recognized risk factor for both Non-alcoholic fatty liver disease (NAFLD) and alcoholic liver disease (ALD). Rocaglamide-A (Roc-A), a natural compound derived from the genus Aglaia, is known for its pharmacological and immunosuppressive effects on various cell types. Although our recent investigations have unveiled Roc-A's anti-adipogenic role in adipocytes, its mechanism in hepatic inflammation remains elusive.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!