Search results for "SOD"

Microvascular blood flow changes of the abductor pollicis brevi muscle during sustained static exercise

2020

ABSTRACTA practical assessment of the health of the palm muscle, abductor pollicis brevis (APB), is important for diagnosis of different conditions. Here we have developed a protocol and a probe to utilize diffuse correlation spectroscopy (DCS) to characterize microvascular blood flow changes in the APB during and after sustained isometric exercise, during and after thumb abduction at at 55% of maximum voluntary contraction (MVC). Blood flow in the APB decreased during exercise in the subjects (n=13) with high MVC (n=7) and stayed constant in the ones with low MVC (n=6) suggesting that the mechanical occlusion due to increased intramuscular pressure exceeded the vasodilation elicited by the…

Enteric-coated mycophenolate sodium in the treatment of refractory pemphigus

2010

Background  One of the major goals of pemphigus therapy is to reduce the patient’s cumulative exposure to systemic corticosteroids. To investigate the efficacy of enteric-coated mycophenolate sodium (EC-MPS), 10 patients with active, refractory pemphigus vulgaris (PV) or foliaceous (PF) were treated with EC-MPS (1440 mg daily) and prednisone (75 mg daily) over 18 months. Observations  Following EC-MPS/prednisone therapy, disease progression was inhibited between days 30 and 45 in 9/10 patients (8 PV; 1 PF). At 18 months, 8/9 PV patients had clinically quiescent disease; EC-MPS therapy was no longer required in two patients as a result of disease remission. The remaining PV patient showed no…

The effect of the calibre and length of needle on the stability of sclerosing foam.

2020

Objectives Little is known how calibre and length of needles affect the stability of sclerosing foam. Methods Foams were made of 0.5%, 1%, 2% and 3% polidocanol, and 0.2%, 0.5%, 1% and 3% sodium tetradecyl sulfate (STS), which were mixed with air in the proportion of 4:1. These foams were ejected through needles with the length of: 4 mm, 6 mm and 13 mm, and diameter of: 0.26 mm, 0.3 mm and 0.4 mm. Results Foams made of more concentrated polidocanol were more stable. Regarding STS an opposite relationship was revealed. Foams made of polidocanol were more stable if ejected through a longer needle, while the length of needle did not significantly affect stability of STS foams. Foams ejected th…

Contrast-Induced Hyperemia and FFR: Slightly Slower but still “Quick and Clean”

2016

Slightly more complex than the previous one, a quick way to induce hyperemia is to inject a contrast bolus. Although the degree of hyperemia reached this way is not as large as with vasodilators, this maneuver can still allow unmasking a gradient.

Effect of comprehensive vasodilation vs usual care on mortality and heart failure rehospitalization in women with acute heart failure

2020

Abstract Background Guidelines recommend evaluating the risk/benefit ratio of novel therapies individually in women and men, as the pathophysiology and the response to treatment may differ between women and men. Among patients with acute heart failure (AHF), a strategy of intensive vasodilation, compared with usual care, overall did provide comparable outcomes. Purpose To evaluate the effect of a strategy that emphasized early intensive and sustained vasodilation in women with AHF. Methods In a randomized, open-label blinded-end-point trial patients hospitalized for AHF were enrolled in 10 hospitals in Switzerland, Bulgaria, Germany, Brazil, and Spain. Inclusion criteria were AHF expressed …

2020

Abstract Background The long-term effectiveness of antipsychotic maintenance treatment after first-episode psychosis (FEP) is contested. In this real-world observational study, we examined how cumulative exposure to antipsychotics within the first 5 years from FEP was associated with the 19-year outcome. Methods Finnish national registers were used to detect all patients who were hospitalized due to non-affective psychosis in the mid-1990s, and who were treatment naïve prior to the inclusion period (N = 1318). Generalized linear models with logit link function were used to estimate how cumulative exposure to antipsychotics within the first 5 years from onset was associated with mortality, w…

A clinical study of the effect of calcium sodium phosphosilicate on dentin hypersensitivity

2012

Objective: Dentinal hypersensitivity is a commonly encountered problem with varied treatment options for its management. A large number of home use products have been tested and used for the management of dentinal hypersensitivity. This 8 week clinical trial investigates the temporal efficacy of commercially available calcium sodium phosphosilicate containing toothpaste in comparison to a potassium nitrate containing toothpaste. Methods: A total 20 subjects between the ages of 18 to 65 years were screened for a visual analogue score (VAS) for sensitivity of 5 or more by testing with a cold stimulus and randomly divided into test and positive control groups. Baseline sensitivity VAS scores t…

Myogenic effects enhance norepinephrine constriction: Inhibition by nitric oxide and felodipine

1998

Myogenic effects enhance norepinephrine constriction: Inhibition by nitric oxide and felodipine. Myogenic, pressure-induced vasoconstriction may amplify the effects of circulating vasoconstrictors. Through intravital microscopy in cremaster arterioles (31 to 115 μm diameter), the relative contribution of myogenic responses (MR) to norepinephrine (NE)-induced constriction and the inhibitor potency of nitric oxide (NO) or a Ca2+ entry blocker (CEB), felodipine (F), were examined. In 24 anesthetized hamsters, a vessel occluder was placed around the aorta to control cremaster vessel inflow pressure (IP). NE infusion increased blood pressure (by 50 ± 2mm Hg) and induced significant constriction …

Blood pressure in chronic kidney disease stage 5D—report from a Kidney Disease: Improving Global Outcomes controversies conference

2010

Management of blood pressure (BP) in patients with chronic kidney disease receiving dialysis (stage 5D) provides a significant challenge for healthcare professionals. The association between BP and cardiovascular disease risk has been well studied in the general population; however, in dialysis patients, physiological and dialysis-related mechanisms influencing BP are complex, and the associated risk is poorly understood. In stage 5D, BP is determined by the complex interplay of fluid volume and prescription of post-dialysis target weight, sodium load, the renin–angiotensin and sympathetic nervous systems, and diverse exogenous factors, such as administration of erythropoiesis-stimulating a…

First-Episode Psychotic Patients Showed Longitudinal Brain Changes Using fMRI With an Emotional Auditory Paradigm

2020

[EN] Most previous longitudinal studies of functional magnetic resonance imaging (fMRI) in first-episode psychosis (FEP) using cognitive paradigm task found an increased activation after antipsychotic medications. We designed an emotional auditory paradigm to explore brain activation during emotional and nonemotional word processing. This study aimed to analyze if longitudinal changes in brain fMRI BOLD activation is present in patients vs. healthy controls. A group of FEP patients (n = 34) received clinical assessment and had a fMRI scan at baseline and follow-up (average, 25-month interval). During the fMRI scan, both emotional and nonemotional words were presented as a block design. Resu…