AI Article Synopsis

  • Both 2-nitrooxymethyl-4-phenyl- and 4-nitrooxymethylphenyl-1,4-dihydropyridines are new compounds combining two vasodilating structures, but 2 could not be isolated due to rapid lactonization.
  • Derivatives of 4-nitrooxymethylphenyl-1,4-dihydropyridines were synthesized using a method involving nitrooxymethylated benzaldehydes, and their effects were tested on porcine trabecular muscles and coronary arteries.
  • While the compounds were found to have negative inotropic effects compared to nitrendipine, they demonstrated less vasodilator activity than both nitrend

Article Abstract

Both 2-nitrooxymethyl-4-phenyl- (2) and 4-nitrooxymethylphenyl-1,4-dihydropyridines (3) represent new combinations of two different vasodilating structures. 2 could not be isolated due to its spontaneous lactonization. Derivatives of 3 were obtained via Hantzsch synthesis using nitrooxymethylated benzaldehydes. The inotropic potency in isolated porcine trabecular muscles and the vasodilator activity in isolated porcine coronary arteries of four nitrooxyphenyl-dihydropyridines were determined. Nitrendipine (NTD) and glyceryl trinitrate (GTN) were used for reference. 3 were negative inotropic, however, less than NTD and--except for the dicyano derivative 3d--more than GTN. Vasodilator properties were less pronounced than that of both nitrendipine and GTN. Vascular selectivity was low.

Download full-text PDF

Source
http://dx.doi.org/10.1002/ardp.19973300804DOI Listing

Publication Analysis

Top Keywords

isolated porcine
8
organic nitrates
4
nitrates synthesis
4
synthesis biological
4
biological activities
4
activities 4-nitrooxymethylphenyl-14-dihydropyridines
4
4-nitrooxymethylphenyl-14-dihydropyridines 2-nitrooxymethyl-4-phenyl-
4
2-nitrooxymethyl-4-phenyl- 4-nitrooxymethylphenyl-14-dihydropyridines
4
4-nitrooxymethylphenyl-14-dihydropyridines represent
4
represent combinations
4

Similar Publications

Background: Cell-free regenerative strategies, such as notochordal cell (NC)-derived extracellular vesicles (EVs), are an attractive alternative in developing new therapies for intervertebral disc (IVD) degeneration. NC-EVs have been reported to elicit matrix anabolic effects on nucleus pulposus cells from degenerated IVDs cultured under basal conditions. However, the degenerative process is exacerbated by pro-inflammatory cytokines contributing to the vicious degenerative cycle.

View Article and Find Full Text PDF

Serotyping and antimicrobial resistance of Actinobacillus pleuropneumoniae isolates from fattening pigs in Poland from 2019 to 2024.

BMC Vet Res

January 2025

Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, 02-787, Poland.

Background: Actinobacillus pleuropneumoniae is a prevalent respiratory pathogen causing substantial economic losses in swine production worldwide. The bacterium's ability to rapidly develop antimicrobial resistance (AMR) poses a significant challenge to effective treatment and control. In Poland, limited data on A.

View Article and Find Full Text PDF

Characterization of novel mutations involved in the development of resistance to colistin in Salmonella isolates from retail pork in Shanghai, China.

Int J Food Microbiol

February 2025

MOST-USDA Joint Research Center for Food Safety and NMPA Key Laboratory for Testing Technology of Pharmaceutical Microbiology, Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:

Salmonella is an important foodborne pathogen that poses a significant threat to food safety. This study aims to assess the prevalence, genomic features, and colistin-resistant mechanisms of Salmonella isolates collected from 118 retail pork samples from January 2021 to January 2022 in Shanghai, China. Overall, 46 (39.

View Article and Find Full Text PDF

In Egypt, knowledge about vector-borne bacterial pathogens in camels remains limited. To address this gap, 181 blood samples from adult one-humped camels (Camelus dromedarius) in the greater Cairo metropolitan area were collected from October 2021 to March 2022. Through PCR assays, four pathogens were detected, where Anaplasmataceae being the most common (54.

View Article and Find Full Text PDF

Purpose: For optimization of respiratory drug delivery, the selection of suitable in vitro cell models plays an important role in predicting the efficacy and safety of (bio)pharmaceutics and pharmaceutical formulations. Therefore, an in-depth comparison of different primary and permanent in vitro cellular airway models was performed with a focus on selecting a suitable model for inhalative antibodies.

Methods: Primary cells isolated from the porcine trachea were compared with the established human cell lines CaLu3 and RPMI 2650.

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!