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The greater duckweed (Spirodela polyrhiza 7498) exhibits trophic diversity (photoautotrophic, heterotrophic, photoheterotrophic, and mixotrophic growth) depending on the availability of exogenous organic carbon sources and light.
Here, we show that the ability to transition between various trophic growth conditions is an advantageous trait, providing great phenotypic plasticity and metabolic flexibility...
In this study, we investigated the effect of three types of nitric oxide synthase inhibitors on the changes of hemodynamic parameters and thoracic aorta tension induced by septic shock in rats. We established the septic shock model rats by Cecal ligation and puncture (CLP), and nitric oxide synthase inhibitors (L-NAME, AMG and 7-NI) were injected after CLP. Mean arterial blood pressure (MABP), and...
Objective: To explore the vasoactive effect of total flavonoids from peanut hull (TFPH) on rat thoracic aortas and its potential mechanism. Methods: The tension of thoracic aortic rings isolated from male Sprague-Dawley rat was measured in the organ bath system. Results: 1. TFPH (20–640 mg/l) concentration-dependently induced vasorelaxation (P < 0.01 vs. control) in aortas previously contracted...
This study investigated the effect of intracerebroventricular (ICV) administration of the angiotensin AT1 receptor antagonist losartan on the natriuresis, pressor effect, and the mitogen-activated protein kinases (MAPK) activity in the rostroventrolateral medulla (RVLM) caused by ICV injection of either angiotensin II (ANG II) or carbachol. Losartan (20μg) was infused into the lateral ventricle before,...
Problem-based learning (PBL) is a student-centered and self-directed teaching approach. Compared with the traditional teaching approaches, PBL breaks the traditional discipline-based boundaries of basic medical sciences, inspires the stedents' activity, creativity and trains their comprehensive abilities. Furthermore, PBL helps to improve tutors' professional competence, too. In this case, the PBL...
Based on screening for vasoactive traditional Chinese medicinal herbs, the present study was performed to investigate the vasoactive effects of an ethyl acetate extract from leaves of Morus alba (L.) (ELM) on rat thoracic aorta and the mechanisms underlying these effects.Isolated rat thoracic rings were mounted in an organ bath system and the effects of ELM on their responses were evaluated.ELM (0...
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