n-hydroxy-n--(4-butyl-2-methylphenyl)formamidine and Hypertension--Pulmonary

n-hydroxy-n--(4-butyl-2-methylphenyl)formamidine has been researched along with Hypertension--Pulmonary* in 1 studies

Other Studies

1 other study(ies) available for n-hydroxy-n--(4-butyl-2-methylphenyl)formamidine and Hypertension--Pulmonary

ArticleYear
Role of 20-hydroxyeicosatetraenoic acid in pulmonary hypertension and proliferation of pulmonary arterial smooth muscle cells.
    Pulmonary pharmacology & therapeutics, 2020, Volume: 64

    To investigate the level of 20-Hydroxyeicosatetraenoic acid (20-HETE) in model of pulmonary hypertension (PH) and its effect on the proliferation of pulmonary arterial smooth muscle cells (PASMCs).. Twenty male Sprague-Dawley rats were randomly divided into two groups, including control group and PH group. PH was induced by intra-peritoneal injection of 20 mg/kg monocrotaline (MCT) twice in a week in 10 rats, and control rats were given equal amount of saline. Mean pulmonary arterial pressure (mPAP), right ventricular hypertrophy index (RVHI) and pulmonary vascular remodeling index (WA%, WT%) were assessed at the week 4. The levels of 20-HETE were analysed by liquid chromatography tandem-mass spectrometry (LC-MS/MS). EdU test was used to determine the proliferation of PASMCs. Intracellular levels of reactive oxygen species (ROS) were detected using DCFH-DA dye.. (1) Prominent right ventricular hypertrophy and pulmonary vascular remodeling were verified in PH rats; (2) 20-HETE levels in lung tissue and serum were significantly lifted in PH rats; (3) Increased 20-HETE levels in cell culture supernatants were significantly noted in hypoxia condition; (4) Proliferation of PASMCs was induced by 20-HETE and hypoxia, and was inhibited by HET0016; (5) Production of ROS was elevated by 20-HETE and hypoxia, and was reduced by HET0016; CONCLUSION: Vascular remodeling was demonstrated in PH rats. 20-HETE levels were significantly increased in PH rats and under hypoxia condition. PASMCs proliferation and ROS production were elevated by 20-HETE and could be inhibited by HET0016, a specific inhibitor of 20-HETE. Taken together, changes in the level of 20-HETE may be related to the excessive proliferation of PASMCs in PH rats.

    Topics: Amidines; Animals; Cell Proliferation; Chromatography, Liquid; Hydroxyeicosatetraenoic Acids; Hypertension, Pulmonary; Hypoxia; Male; Myocytes, Smooth Muscle; Pulmonary Artery; Rats; Rats, Sprague-Dawley; Tandem Mass Spectrometry

2020