Archive for the ‘researches 6’ Category
Thursday, July 3rd, 2008
Novel poly(amido amine)s with bioreducible disulfide linkages in their diamino-units: Structure effects and in vitro gene transfer properties.
A series of novel water-soluble, bioreducible poly(amido amine)s containing disulfide linkages in their amino units (SS-PAAs) was synthesized by Michael addition polymerization of N,N\'-dimethylcystamine (DMC) with various bisacrylamides. ...
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Thursday, July 3rd, 2008
Genetic diversity of the VP1 gene of duck hepatitis virus type I (DHV-I) isolates from southeast China is related to isolate attenuation.
The complete sequence of an isolate (ZJ-V) of Duck hepatitis virus I (DHV-I), originally taken from the field in southeast China was determined. It ...
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Thursday, July 3rd, 2008
Characterization of a cellulose binding domain from Clostridium cellulovorans endoglucanase-xylanase D and its use as a fusion partner for soluble protein expression in Escherichia coli.
Different chimeric proteins combining the non-catalytic C-terminal putative cellulose binding domain of Clostridium cellulovorans endoglucanase-xylanase D (EngD) with its proline-threonine rich ...
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Thursday, July 3rd, 2008
Content of trichodiene and analysis of fungal volatiles (electronic nose) in wheat and triticale grain naturally infected and inoculated with Fusarium culmorum.
Four groups of cereal kernels were analyzed in terms of their volatile metabolite contents using GC/MS and the electronic nose. Analyses were conducted on ...
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Thursday, July 3rd, 2008
Effect of thymol on microbial diversity in the porcine jejunum.
Thirty two weaned pigs (24 d-old) were fed a diet without or with 1% (w/w) thymol. Pigs from each dietary treatment remained unchallenged or were challenged with Salmonella enterica serovar typhimurium. Jejunal content was collected and ...
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Thursday, July 3rd, 2008
Automated non-coplanar beam direction optimization improves IMRT in SBRT of liver metastasis.
PURPOSE: To investigate whether automatically optimized coplanar, or non-coplanar beam setups improve intensity modulated radiotherapy (IMRT) treatment plans for stereotactic body radiotherapy (SBRT) of liver tumors, compared to a reference equi-angular IMRT plan. METHODS: ...
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Thursday, July 3rd, 2008
Vascularization in tissue engineering.
Tissue engineering has been an active field of research for several decades now. However, the amount of clinical applications in the field of tissue engineering is still limited. One of the current limitations of tissue engineering is its inability to provide sufficient ...
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Thursday, July 3rd, 2008
Towards practical implementation of bioelectrochemical wastewater treatment.
Bioelectrochemical systems (BESs), such as microbial fuel cells (MFCs) and microbial electrolysis cells (MECs), are generally regarded as a promising future technology for the production of energy from organic material present in wastewaters. The current densities that can be ...
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Thursday, July 3rd, 2008
Species richness in soil bacterial communities: A proposed approach to overcome sample size bias.
Estimates of species richness based on 16S rRNA gene clone libraries are increasingly utilized to gauge the level of bacterial diversity within various ecosystems. However, previous studies have indicated that regardless of ...
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Thursday, July 3rd, 2008
Comparison of the accuracy of disk diffusion zone diameters obtained by manual zone measurements to that by automated zone measurements to determine antimicrobial susceptibility.
Although a variety of techniques are available for antimicrobial susceptibility testing, disk diffusion methods remain the most widely used. We compared the ...
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Thursday, July 3rd, 2008
Chagas disease alters the relationship between heart rate variability and daily physical activity.
Regular exercise training is considered to be capable of beneficially modifying the autonomic balance in healthy subjects. We studied the association between vagal HRV indexes and the level of physical activity in Chagas ...
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Thursday, July 3rd, 2008
Bacterial endocarditis and body art: Suggestions for an active prevention.
Publications reporting cases of bacterial endocarditis after piercing and tattooing are increasing. These cases are probably overestimated by the publications, whereas millions of people are tattooed and pierced around the world and congenital heart diseases concern ...
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Thursday, July 3rd, 2008
Case report: Echocardiographic deformation imaging detects left ventricular involvement in a young boy with arrhythmogenic right ventricular dysplasia/cardiomyopathy.
A 16-year old boy was diagnosed with arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) after a symptomatic event of ventricular tachycardia originating from the right ventricle (RV). Initial evaluation revealed ...
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Thursday, July 3rd, 2008
Differential associations of renal function with coronary and peripheral atherosclerosis.
BACKGROUND: The aim of this study was to examine the impact of renal dysfunction on both coronary and peripheral atherosclerosis in patients with coronary artery disease (CAD) without severe renal impairment. METHODS: One hundred and eighty-seven ...
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Thursday, July 3rd, 2008
Nitric oxide overproduction derived from inducible nitric oxide synthase increases cardiomyocyte apoptosis in human atrial fibrillation.
BACKGROUND: Inflammation and oxidant stress have been suggested to be involved in the structural remodeling in atrial fibrillation (AF), and inducible nitric oxide synthase (iNOS) is associated with inflammation and ...
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Thursday, July 3rd, 2008
A previously undescribed anomaly of left anterior descending artery: Type V dual left anterior descending artery.
Dual left anterior descending coronary artery (LAD) is a group of rare congenital coronary artery anomalies and exhibits 4 different types. The goal of this article is to define a ...
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Thursday, July 3rd, 2008
Low birth weight and markers of inflammation and endothelial activation in adulthood: The ARIC study.
BACKGROUND: To investigate the hypothesis that intrauterine growth restriction might produce a longstanding pro-inflammatory tendency, we investigated the association of low birth weight with blood levels of markers of inflammation and ...
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Thursday, July 3rd, 2008
Hybrid N-glycans on the host protective activation-associated secreted proteins of Ostertagia ostertagi and their importance in immunogenicity.
Previous vaccination trials with calves have shown that intramuscular immunization with natively purified activation-associated secreted proteins (ASPs) of Ostertagia ostertagi induces protection against a homologous challenge infection with a ...
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Thursday, July 3rd, 2008
Modulation of influenza virus replication by alteration of sodium ion transport and protein kinase C activity.
In recent years, increasing levels of resistance to the four FDA-approved anti-influenza virus drugs have been described and vaccine manufacturers have experienced demands that exceed their capacity. This situation underlines ...
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Thursday, July 3rd, 2008
Closing the door on flaviviruses: Entry as a target for antiviral drug design.
With the emergence and rapid spread of West Nile virus in the United States since 1999, and the 50-100 million infections per year caused by dengue virus globally, the threat of flaviviruses as ...
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Thursday, July 3rd, 2008
Serotonin and depression: pathophysiological mechanism or marketing myth?
The notion that impaired serotonin (5-HT) function can lead to clinical depression has a long history but is still controversial. Some have argued that the 5-HT hypothesis has been misused by the pharmaceutical industry to promote a simplistic ...
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Thursday, July 3rd, 2008
Molecular analysis of the GJB2, GJB6 and SLC26A4 genes in Korean deafness patients.
OBJECTIVES: Mutations in the GJB2, GJB6 and SLC26A4 genes are a frequent cause of hearing loss in a number of populations. However, little is known about the genetic causes of hearing loss in ...
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Thursday, July 3rd, 2008
Preconditioning with a TLR2 specific ligand increases resistance to cerebral ischemia/reperfusion injury.
The brain\'s resistance to ischemic injury can be transiently augmented by prior exposure to a sub-lethal stress stimulus, i.e. preconditioning. It has been reported that Toll-like receptors (TLRs) are involved in the preconditioning-induced protective ...
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Thursday, July 3rd, 2008
Are dendritic cells central to regulatory T cell function?
The role of dendritic cells (DCs) as sentinels and inducers of immunity has been amply documented in the past 35 years. More recently, experimental evidence has suggested that DCs may also be critical to maintain tolerance to ...
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Thursday, July 3rd, 2008
Statistical procedures for analyzing mental health services data.
In mental health services research, analyzing service utilization data often poses serious problems, given the presence of substantially skewed data distributions. This article presents a non-technical introduction to statistical methods specifically designed to handle the complexly distributed datasets ...
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