Abstract:
:The effects of the close arterial infusion of histamine upon the microcirculation of facial and nasal tissues were examined in dogs. Blood flow through arteriovenous anastomoses (AVA flow), capillaries (CAP flow) and collaterals (COL flow) were determined by electromagnetic flowmetry and the tracer-microsphere technique following an infusion of histamine at doses ranging from 0.5 to 50 nmol/min. Low doses of histamine (0.5-5.0 nmol/min) resulted in an increase in blood flow through the ipsilateral internal maxillary artery (IMA), which could be mainly attributed to a significant elevation of the CAP flow. A concomitant marked increase in AVA flow was observed only after the administration of higher doses (20-50 nmol/min). Significant changes in systemic blood pressure, heart rate and cardiac output occurred only after the infusion of histamine at doses of 20 and 50 nmol/min. Significant increases in the CAP flow of tissues with relatively low perfusion were observed after the infusion of histamine at lower doses. The CAP flow of structures which play an essential role in conditioning the inspired air and exhibit high perfusion rates under control conditions exhibited significant increases only after the administration of higher doses. The present experiments provide direct evidence for a dose-dependent vasodilatory effect of histamine on different microcirculatory compartments of cutaneous and mucosal vascular beds supplied by the IMA in the dog. The results indicate that at low blood histamine levels, an increase in CAP flow predominates, and at higher doses, both elevated CAP flow and elevated AVA flow contribute to the vasodilatory response to histamine.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Vasc Resjournal_title
Journal of vascular researchauthors
Bari F,Ariwodola JO,Pleschka Kdoi
10.1159/000158972subject
Has Abstractpub_date
1993-01-01 00:00:00pages
30-7issue
1eissn
1018-1172issn
1423-0135journal_volume
30pub_type
杂志文章abstract:INTRODUCTION:This study aimed to investigate whether epigallocatechin-3-gallate (EGCG) shows antioxidant activity against angiotensin II (Ang II)-induced human umbilical vein endothelial cell (HUVEC) apoptosis. MATERIALS AND METHODS:The viability of HUVECs was revealed by MTT and LDH assay. The cell apoptosis was dete...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000479873
更新日期:2017-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000097892
更新日期:2007-01-01 00:00:00
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journal_title:Journal of vascular research
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doi:10.1159/000025580
更新日期:1998-05-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000025592
更新日期:1998-07-01 00:00:00
abstract::Mechanical forces generated at the endothelium by fluid shear stress and pulsatile stretch are important in ensuring the continuous release of vasoactive endothelial autacoids. Although the mechanism by which endothelial cells are able to detect and convert these physical stimuli into chemical signals is unclear, this...
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pub_type: 杂志文章,评审
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abstract::Pituitary adenylate cyclase-activating peptide (PACAP; 1-38 and 1-27) and vasoactive intestinal peptide (VIP) are related neuropeptides of the secretin/glucagon family. Overlapping signaling through G-protein-coupled receptors mediates their vasomotor activity. We previously showed that PACAP deficiency (PACAP-KO) shi...
journal_title:Journal of vascular research
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更新日期:2017-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000159145
更新日期:1996-03-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to assess the rat pial microvessel alterations due to transient bilateral common carotid artery occlusion (BCCAO) and to investigate the mechanism of 10% hypertonic glycerol neuroprotection. Our suggestion was that 10% glycerol solution infusion could dilate pial arterioles through ni...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000109818
更新日期:2008-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000025599
更新日期:1998-09-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000486571
更新日期:2018-01-01 00:00:00
abstract::Insulin was reported to decrease Na(+)/H(+) exchange activity in murine vascular smooth muscle (VSM) tissue. In most other cells, insulin increases activity. We tested the effects of insulin on Na(+)/H(+) exchange activity in primary cultured canine VSM cells. Intracellular pH (pH(i)) was measured with 2',7'-bis(2-car...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000329587
更新日期:2011-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000447263
更新日期:2016-01-01 00:00:00
abstract::The Ig-like cell adhesion molecule ICAM-3 is mainly expressed on human leukocytes and is involved in cell-cell interactions. Its expression on endothelium is observed during disorders such as Crohn's disease and in solid tumors. We found low but detectable expression of ICAM-3 on VE-cadherin-expressing cells from prim...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000076126
更新日期:2004-01-01 00:00:00
abstract::We tested the hypothesis that oxidized low-density lipoprotein (oxLDL)-induced inactivation of Akt within endothelial progenitor cells (EPCs) is mediated at the level of phosphoinositide 3-kinase (PI3K), specifically by nitrosylation of the p85 subunit of PI3K, and that this action is critical in provoking oxLDL-induc...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000313879
更新日期:2010-01-01 00:00:00
abstract:AIMS:The effects of ischemia and hypercholesterolemia on the function and morphological adaptation of the rabbit hindlimb were assessed. METHODS:In rabbits on normal or cholesterol diet, experiments were performed on days 0-28 following bilateral femoral artery ligation. Calf blood pressure (C(BP)), exercise tolerance...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000113600
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND/AIMS:The present report examines a new pig model for progressive induction of high-grade stenosis, for the study of chronic myocardial ischemia and the dynamics of collateral vessel growth. METHODS:Thirty-nine Landrace pigs were instrumented with a novel experimental stent (GVD stent) in the left anterior d...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000181545
更新日期:2009-01-01 00:00:00
abstract::Dietary flavonoids are thought to protect against cardiovascular disease. We have studied the effects of bioactive isoflavone metabolites on hyperlipidemia, endothelial dysfunction and the development of atherosclerotic lesions in apolipoprotein E-deficient (apoE(0)) mice fed a Western high-fat diet. Supplementation w...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000071891
更新日期:2003-05-01 00:00:00
abstract::Tumor necrosis factor (TNF) receptor-associated factors (TRAFs) are cytoplasmic adaptor proteins of the TNF/interleukin (IL)-1/Toll-like receptor superfamily. Ligands of this family such as TNFα, CD40L, and IL-1β promote chronic inflammatory processes such as atherosclerosis and restenosis, the latter being a common a...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000501615
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Lipoxin A4 (LXA4) is a biologically active product generated from arachidonic acid by lipoxygenase action. The production of lipoxins is enhanced by aspirin through acetylation of cyclooxygenase-2, via a mechanism known as 'aspirin-triggered lipoxin'. LXA4 has both anti-inflammatory and proinflammatory actio...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000371490
更新日期:2014-01-01 00:00:00
abstract::The proliferation of vascular smooth muscle cells (VSMC) plays a significant part in both the developing atherosclerotic lesion and in restenosis. Heparin has been widely reported to inhibit the growth of VSMC in culture and intimal VSMC in some animal models of vascular hyperplasia. Clinical trials with heparin, howe...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000025616
更新日期:1998-11-01 00:00:00
abstract:AIM:Vascular remodeling following injury substantially accounts for restenosis and adverse clinical outcomes. In this study, we investigated the role of the giant scaffold protein Ahnak1 in vascular healing after endothelial denudation of the murine femoral artery. METHODS:The spatiotemporal expression pattern of Ahna...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000464287
更新日期:2017-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000159245
更新日期:1997-09-01 00:00:00
abstract::Endothelin-1 (ET-1), a vasoconstrictor peptide produced by endothelial and vascular smooth muscle cells (VSMC) might play a role in vascular remodelling. To investigate the proposed 'mitogenic' potential of ET-1, we examined the effects of chronic exposure of VSMC to ET-1 on cell cycle, growth/proliferation and differ...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000158994
更新日期:1993-07-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000258905
更新日期:2010-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000494066
更新日期:2018-01-01 00:00:00
abstract::The assembly of the vessel wall from its cellular and extracellular matrix components is a critical process in the development and maturation of the cardiovascular system. However, fundamental questions concerning the origin of vessel wall cells and the mechanisms that regulate their development and differentiation re...
journal_title:Journal of vascular research
pub_type: 杂志文章,评审
doi:10.1159/000025622
更新日期:1999-01-01 00:00:00
abstract::Actions of the novel Ca2+ antagonist, Ro 40-5967, which displays unusual efficacy against endothelin (ET)-induced contractions, were studied in isolated vascular muscle cells (VMCs) using the fluorescent protein kinase C (PKC) indicator, BODIPY 12 alpha-phorbol ester 13 beta-acetate (PBA-BODIPY). High-sensitivity (pho...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000159134
更新日期:1996-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000110208
更新日期:2008-01-01 00:00:00
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journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000081804
更新日期:2004-11-01 00:00:00
abstract::The D allele of the insertion (I)/deletion (D) polymorphism in the angiotensin-converting enzyme (ACE) gene and the C allele of the A1166-C polymorphism in the angiotensin II type 1 receptor (AGT1R) gene have been associated with altered vascular structure and with an increased risk of myocardial infarction. The aim o...
journal_title:Journal of vascular research
pub_type: 杂志文章
doi:10.1159/000025687
更新日期:1999-11-01 00:00:00