Abstract：
:Norepinephrine (NE) responses are larger in renal and femoral veins compared to phenylephrine (PE). These differences may be due to the subtypes of adrenoceptor involved in these responses or to the involvement of local modulatory mechanisms. Therefore, the present study investigated in organ bath the adrenoceptor subtypes involved in the NE and PE responses in both renal and femoral veins as well as the influence of local mechanisms related to NO and to prostanoids upon these responses. The obtained data showed that the NE responses in these veins were not significantly modified by the selective inhibition of β1 or β2-adrenoceptors as well as AT1 or AT2 receptors. However, yohimbine reduced the NE Rmax in renal veins and, in parallel, right shifted the NE concentration-response curves in femoral veins. In both veins, prazosin reduced the NE Rmax and the clonidine induced a measurable contraction. The endothelium removal attenuated the NE responses in femoral veins, thereby abolishing the differences of NE and PE responses. Furthermore, the NE responses in renal and femoral veins were attenuated by indomethacin, which suppressed the statistical difference in relation to the PE response. In conclusion, a synergism between α1- and α2-adrenoceptors is essential to assure full NE contractile responses in both renal and femoral veins. Thus, by acting simultaneously in these adrenoceptors, NE induces more pronounced contractile responses, in comparison to PE, not only in renal but also in femoral veins. Moreover, this pronounced NE response in both renal and femoral veins appears to involve endothelium-derived vasoconstrictor prostanoids.
journal_name
Vascul Pharmacoljournal_title
Vascular pharmacologyauthors
de Souza Rossignoli P,Yamamoto FZ,Pereira OC,Chies ABdoi
10.1016/j.vph.2015.06.017subject
Has Abstractpub_date
2015-09-01 00:00:00pages
93-100eissn
1537-1891issn
1879-3649pii
S1537-1891(15)00148-2journal_volume
72pub_type
杂志文章abstract：:Thalidomide is an antiangiogenic drug and is clinically useful in a number of cancers. However, the molecular mechanism by which thalidomide exerts its antitumor effects is poorly understood. This study was designed to clarify the relationship between antiangiogenesis and antitumor effects of thalidomide and to explor...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.04.003
更新日期：2005-08-01 00:00:00
abstract：:Peroxisome proliferator-activated receptors (PPAR)alpha, gamma and beta/delta belong to the nuclear receptor family of ligand-activated transcription factors. PPARs heterodimerize with the retinoid X receptor (RXR) and then act as transcription factors to modulate the function of many target genes. PPARalpha, gamma an...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2005.11.014
更新日期：2006-07-01 00:00:00
abstract：:We studied the mechanisms involved in the relaxation induced by nitric oxide (NO) donors, ruthenium complex ([Ru(terpy)(bdq)NO(+)](3+)-TERPY) and sodium nitroprusside (SNP) in denuded rat aorta. Both NO donors induced vascular relaxation independent of the agonist used in the pre-contraction. [Ru(terpy)(bdq)NO(+)](3+)...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2006.10.002
更新日期：2007-03-01 00:00:00
abstract：BACKGROUND:Altered endothelial cell (EC)-derived mediator levels, including increased endothelin-1 (ET-1), are hallmarks of human pulmonary arterial hypertension (PAH). Gene mutations for receptors for bone morphogenic proteins (BMP), or transforming growth factor-beta (TGF-beta) cause heritable PAH. The effects of BMP...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2008.09.001
更新日期：2009-01-01 00:00:00
abstract：:Increased TNFα-mediated JNK signaling in the perivascular adipose tissue (PVAT) may contribute to the pathogenesis of vascular complications in T1DM by reducing adiponectin (Ad) synthesis and therefore impairing Ad-mediated activity in the contiguous blood vessel system. We evaluated whether in vivo treatment with the...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2016.08.007
更新日期：2016-12-01 00:00:00
abstract：:Angiogenesis has become an attractive target for the treatment of certain diseases such as cancer and rheumatoid arthritis. Our previous studies demonstrated that the saponin fraction from Gleditsia sinensis fruits had anti-angiogenic potential, and Gleditsiosides B (GB) was probably the main active constituent. In th...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2012.09.006
更新日期：2013-01-01 00:00:00
abstract：:The antiplatelet and antithrombotic activities of a newly synthesized CP201, 2-(3,5-di-tert-butyl-4-hydroxyl)-3-chloro-1,4-naphthoquinone on human platelet aggregation in vitro and murine pulmonary thrombosis in vivo were examined. In addition, the antiplatelet activity of CP201 involved in calcium-signaling cascade w...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2004.04.001
更新日期：2004-02-01 00:00:00
abstract：:Evidence from both clinical and experimental studies indicates that Di-peptidyl peptidase-IV (DPP-4) inhibition may mediate favorable effects on the cardiovascular system. The objective of this study was to examine the acute effects of DPP-4 inhibition on vascular responses and to study the underlying mechanisms of al...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2011.03.001
更新日期：2011-07-01 00:00:00
abstract：:Intra-aortic balloon pump (IABP) counterpulsation has been the most widely used left ventricular assist device for nearly five decades. Due to diastolic inflation and systolic deflation, coronary blood flow is increased and afterload decreased translating into augmentation of oxygen supply and lowering of oxygen deman...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2013.12.003
更新日期：2014-02-01 00:00:00
abstract：:A small amount of adipose tissue associated with small arteries and arterioles is encountered both in mice and man. This perivascular adipose tissue (PVAT) has a paracrine effect on the vascular tone regulation. PVAT is expanded in obesity and in diabetes. This expansion not only involves enlargement of fat cells, but...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2012.02.003
更新日期：2012-05-01 00:00:00
abstract：:AMP-activated protein kinase (AMPK) is present in the arterial wall and is activated in response to cellular stressors that raise AMP relative to ADP/ATP. Activation of AMPK in vivo lowers blood pressure but the influence of hyperlipidemia on this response has not been studied. ApoE(-/-) mice on high fat diet for 6wee...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2015.07.010
更新日期：2015-11-01 00:00:00
abstract：:Hypercholesterolemia, is a prominent risk factor for cardiovascular disease (CVD). Undestanding of the biochemical mechanisms that regulate the expression of the low density lipoproteins receptor (LDLR) and the hepatic clearance of LDL cholesterol (LDL-C) paved the way to the statin therapy as the gold standard for CV...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2014.05.011
更新日期：2014-08-01 00:00:00
abstract：:The present study investigates the potential of ozagrel, a thromboxane A2 (TXA2) synthase inhibitor, in bilateral common carotid artery occlusion (BCCAo) induced vascular dementia (VaD). Wistar rats were subjected to BCCAo procedure under anesthesia to induce VaD. Morris water maze (MWM) test was employed on 7th day p...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2020.106827
更新日期：2020-12-17 00:00:00
abstract：:The prevention of cardiovascular disease is critically dependent on lipid-lowering therapy, including 3-hydroxymethyl-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins), cholesterol absorption inhibitors, bile acid resins, fibrates, and nicotinic acid. Although these drugs are generally well tolerate...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2005.07.012
更新日期：2006-02-01 00:00:00
abstract：:Much has been written about the potential of pharmacogenetic testing to inform therapy based on an individual's genetic makeup, and to decide the most effective choice of available drugs, or to avoid dangerous side effects. Currently, there is little hard data for either in the field of cardiovascular disease. The usu...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2005.10.003
更新日期：2006-02-01 00:00:00
abstract：:We have studied the therapeutic efficacy of the sodium alginate in experimental immune complex glomerulonephritis. Bovine serum albumin (BSA) nephritis was induced in rats by a subcutaneous immunization and daily intravenous administration of BSA. Sodium alginate at two different doses (25 and 50 mg/kg) was administer...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.03.002
更新日期：2005-06-01 00:00:00
abstract：:Potassium channel dysfunction plays a role in the pathogenesis of a number of vascular diseases including pulmonary and systemic hypertension, diabetes, and complications of atherosclerosis. Two types of K+ channels that are known to be prevalent and contribute significantly to the repolarization of vascular smooth mu...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/s1537-1891(02)00121-0
更新日期：2002-01-01 00:00:00
abstract：:Unresolved endoplasmic reticulum (ER) stress, with the subsequent persistent activation of the unfolded protein response (UPR) is a well-recognized mechanism of endothelial cell apoptosis with a major impact on the integrity of the endothelium during the course of cardiovascular diseases. As in other cell types, Ca(2+...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2015.07.011
更新日期：2016-01-01 00:00:00
abstract：:Endothelial cell dysfunction is considered to be an early event which subsequently leads to vascular wall disorders. Ultrastructural studies indicate that the endothelial cell changes involve membrane damage, increased permeability, swelling and necrosis. The endothelial cell loss of function could be as a result of c...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2006.11.005
更新日期：2007-04-01 00:00:00
abstract：:Cardiovascular diseases are the major challenge to modern medicine. Intervention to cardiovascular cells is crucial for treatment of the diseases. Here we report a novel intervention to vascular smooth muscle (VSM) cells by optogenetics. Channelrhodopsin in a tandem with YFP was selectively expressed in smooth muscle ...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2015.03.006
更新日期：2015-08-01 00:00:00
abstract：:Angiostatin is an angiogenesis inhibitor in part generated by and released from platelets. Since platelets upon thrombus formation can give rise to areas of hypoxia, we investigated the effects of angiostatin on endothelial cell migration and apoptosis during hypoxia. Human microvascular endothelial cells (HMVEC-L) we...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2012.11.003
更新日期：2013-04-01 00:00:00
abstract：:Arterial hypertension is a condition associated with endothelial dysfunction, accompanied by an imbalance in the production of reactive oxygen species (ROS) and NO. The aim of this study was to investigate and elucidate the possible mechanisms of sildenafil, a selective phosphodiesterase-5 inhibitor, actions on endoth...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2019.106601
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:Antitumor activity of paclitaxel is based on promotion of abnormal microtubule (MT) assembly but it is also considered to have significant pro-inflammatory and anti-angiogenic effects in vivo and thus may cause vascular dysfunction. METHODS:We studied 27 women treated with paclitaxel-containing combinations...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2010.05.002
更新日期：2010-09-01 00:00:00
abstract：:We characterized vascular reactivity to endothelin-1 (ET-1) in mesenteric vessels from DOCA-salt hypertensive and SHAM control mice and assessed the effect that endothelial-derived vasodilators have on ET-1-induced vasoconstriction. Changes in the diameter of unpressurized small mesenteric arteries and veins (100- to ...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.02.014
更新日期：2005-06-01 00:00:00
abstract：:We recently demonstrated that lipoic acid suppresses endotoxin-stimulated expression of inducible nitric oxide synthase and nitric oxide production in mouse macrophages. In this study, we tested whether lipoic acid suppresses these inflammatory mediators in the lungs of rats. Rats were assigned to receive either no sp...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.08.005
更新日期：2005-12-01 00:00:00
abstract：:Metformin (Met) can improve atherosclerosis (As). Abnormal endothelin receptors [including endothelin type A (ETA) or type B (ETB) receptor] in vascular smooth muscle cells (VSMCs) are involved in As. Hyperhomocysteinemia (HHcy) is an independent risk factor for As. The present study was designed to test our hypothesi...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2019.106613
更新日期：2020-01-01 00:00:00
abstract：:Elevated plasma levels of factor VII and fibrinogen are risk factors for cardiovascular disease, especially arterial thrombosis. Oral contraceptive use increases factor VII and fibrinogen plasma levels. It has been described that DNA polymorphisms are associated with the plasma levels of hemostatic variables and their...
journal_title：Vascular pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s1537-1891(02)00300-2
更新日期：2002-08-01 00:00:00
abstract：:MicroRNAs (miRNAs) have emerged as crucial players regulating the magnitude of gene expression in a variety of organisms. This class of short (22 nucleotides) noncoding RNA molecules have been shown to participate in almost every cellular process investigated so far, and their deregulation is observed in different hum...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2011.07.004
更新日期：2011-10-01 00:00:00
abstract：:Activation of ATP-sensitive K+ channels (K ATP) during ischemia leads to arrhythmias and blockade of these channels exert antiarrhythmic action. In this study, we investigated the effects of HMR1098, a sarcolemmal K ATP channel blocker and 5-hydroxydeconoate (5-HD), a mitochondrial K ATP channel blocker on cardiac fun...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.11.006
更新日期：2006-04-01 00:00:00
abstract：BACKGROUND:Tissue Factor (TF) plays a pivotal role in coronary thrombosis. Oxidized low-density lipoproteins (oxLDL) are crucial in development of atherosclerosclerosis. Moreover, oxLDL are known to induce TF expression on several cell types including endothelial cells. The lectin-type oxidized LDL receptor 1 (LOX-1) r...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2020.106822
更新日期：2020-11-21 00:00:00
