ABSTRACT: BACKGROUND: Metastasis via the lymphatic system is promoted by lymphangiogenesis. Alterations of the lymphatic channels during the progression of metastasis to regional lymph nodes (LNs) remain unexplored. To examine whether tumor-induced LN lymphangiogenesis controls metastasis to regional LNs, we investigated cervical LN metastasis in a mouse model of oral ...

Significant improvements have been made in the treatment of acute lymphoblastic leukemia (ALL) during the past two decades, and measurement of submicroscopic (minimal) levels of residual disease (MRD) is increasingly used to monitor treatment efficacy. For a better comparability of MRD data there are ongoing efforts to standardize MRD quantification ...

Objective:Although there is evidence of increasing prevalence of impaired glucose metabolism in obese children from smaller single cohorts, data are lacking on the progression of glucose metabolism in this patient group.We aimed to assess the prevalence and the longitudinal course of impaired glucose metabolism assessed by oral glucose tolerance test ...

BACKGROUND: . Perception of sound in the absence of an external auditory source is called tinnitus, which may negatively affect quality of life. Anodal transcranial direct current stimulation (tDCS) of the left temporoparietal area (LTA) was explored for tinnitus relief. OBJECTIVE: . This pilot study examined tDCS dose (current intensity ...

ABSTRACT: BACKGROUND: There is a significant treatment gap for patients with depression. A third of sufferers never seek help, and the vast majority of those who do only do so after considerable delay. Little is understood regarding poor help-seeking rates amongst people with depression, with existing research mainly focussed on ...

A formal total synthesis of the 20-membered marine macrolide, palmerolide A from chiral pool tartaric acid is described. Elaboration of a γ-hydroxy amide, which is derived from the desymmetrization of tartaric acid amide, and Boord olefination are the pivotal reactions employed for the synthesis of the chiral building blocks, and Stille ...

Desymmetrization of diols is a powerful tool to the synthesis of chiral building blocks. Among the different approaches to perform discrimination between both enantiotopic hydroxyl groups, the organocatalytic approach has gained importance in the last years. A diverse range of organocatalysts has been used to efficiently promote this enantioselective transformation ...

Endoscopic third ventriculostomy (ETV) has become the procedure of choice for the treatment of obstructive hydrocephalus in children and adults. Endocrinological complications of ETV in children are rare. Diabetes insipidus (DI) is the most common and accounts for only 0.5% of complications from ETV. The majority of documented cases are ...

OBJECTIVES:Irritable bowel syndrome (IBS) and gastro-esophageal reflux-type symptoms (GERS) are highly prevalent in the general population, and the two appear to be related. We conducted a systematic review and meta-analysis to estimate the prevalence of GERS in individuals with IBS, and to quantify the overlap between the two disorders.METHODS:MEDLINE, EMBASE, ...

ABSTRACT: Recent studies suggest that gene expression profiles are a promising alternative for clinical cancer classification. One major problem in applying DNA microarrays for classification is the dimension of obtained data sets. In this paper we propose a multiclass gene selection method based on Partial Least Squares (PLS) for selecting ...

BACKGROUND: Auditory external cues enhance step initiation in Parkinson's disease (PD) patients. We wanted to explore whether a startle reaction has a comparable effect on step initiation in PD. METHODS: Thirteen PD patients and 13 aged-matched controls participated in this study. Electromyography pattern and onset toe-off time during a step ...

Tripyrranes with tert-butyl and phenyl substituents have been prepared and used to synthesize oxybenziporphyrins, oxypyriporphyrins, benzocarbaporphyrins and azuliporphyrins with phenyl and tert-butyl substituents via a "3 + 1" methodology. The proton NMR spectra for the tripyrrane dibenzyl esters indicate that these tripyrrolic systems take on a helical conformation that favors ...

Starting from triptycene, 2-, (2,6- or 2,7-)di-, and (2,6,14- or 2,7,14-)tri-formyl or acetyl substituted triptycenes were selectively synthesized. The derivatization of the formyl or acetyl substituted triptycenes was then investigated. Consequently, it was found that the formyl-substituted triptycenes could be transformed into cyano substituted triptycene derivatives by the aldoxime formation ...

Embryo-uterine interaction during early pregnancy critically depends on the coordinated expression of numerous genes at the site of implantation. The epigenetic mechanism through DNA methylation (DNM) plays a major role in the control of gene expression, although this regulatory event remains unknown in uterine implantation sites. Our analysis revealed the ...

Organic anion transporting polypeptides (rodents, Oatps; human, OATPs) are primarily involved in the transmembrane transport of a wide range of endogenous and exogenous compounds. Multiple mouse Oatp1 isoforms are closely located on chromosome 6 where each isoform shows distinct tissue distribution; Oatp1b2, Oatp1a6 and Oatp1c1 are expressed exclusively in the ...

Chicken cystatin (cC) mutant I66Q is located in the hydrophobic core of the protein and increases the propensity for amyloid formation. Here, we demonstrate that under physiological conditions, the replacement of Ile with the Gln in the I66Q mutant increases the susceptibility for the disulfide bond Cys71-Cys81 to be reduced ...

Unsaturated [Tp(Me2)Ir(iii)] fragments, readily generated from compounds [Tp(Me2)Ir(C(6)H(5))(2)(N(2))], () and [Tp(Me2)Ir(η(4)-CH(2)[double bond, length as m-dash]C(Me)C(Me)[double bond, length as m-dash]CH(2)] () (Tp(Me2) = hydrotris(3,5-dimethylpyrazolyl)borate), induce the isomerisation of the polypyridines, 2,2'-bipyridine, 1,10-phenanthroline and 2,2':6'2''-terpyridine, to form complexes that contain the carbene tautomer of these ligands. For terpy, a binuclear compound has ...

Background: Periodontitis is a polymicrobial infectious disease. A novel potential chemical treatment modality may lie in bacterial anti-adhesive materials, such as cranberry juice fractions. The aim of this study was to explore the effect of high molecular weight cranberry constituent (NDM - non-dialysable material) on the virulence of a mixed ...

A visible-light driven H(2) evolution system comprising of a Ru(II) dye (RuP) and Co(III) proton reduction catalysts (CoP) immobilised on TiO(2) nanoparticles and mesoporous films is presented. The heterogeneous system evolves H(2) efficiently during visible-light irradiation in a pH-neutral aqueous solution at 25 °C in the presence of a hole scavenger. ...

ABSTRACT: BACKGROUND: The Ay allele at the agouti locus causes obesity and promotes linear growth in mice. The effect of the Ay allele on obesity has been extensively investigated, whereas its effect on body length is only poorly analyzed. To gain insight into the genetic control of body length, quantitative ...

BACKGROUND: Evidence from prospective studies on intake of meat and fish and risk of squamous cell carcinoma (SCC) of the upper aero-digestive tract (UADT) is scarce. We prospectively investigated the association of meat and fish intake with risk of SCC of the UADT and the possible mechanism via heme iron ...

We report a simple method of preparation of carbon paste ultramicroelectrodes (UMEs) for use as probe tips in scanning electrochemical microscopy (SECM). Carbon paste UMEs were prepared by packing the carbon paste into a chemically etched tip of a Pt-UME or a pulled glass capillary. Carbon based UMEs are attractive ...

Purpose:  Febrile seizures (FS), the most frequent seizure type during childhood, have been linked to temporal lobe epilepsy (TLE) in adulthood. Yet, underlying mechanisms are still largely unknown. Altered γ-aminobutyric acid (GABA)ergic neurotransmission in the dentate gyrus (DG) circuit has been hypothesized to be involved. This study aims at analyzing ...

ABSTRACT: BACKGROUND: Patients with many types of autoimmune diseases (AIDs) are at an increased risk of cancer, which may depend on underlying dysregulation of the immune system or treatment. We systematically analyzed myeloma risk and survival in patients diagnosed with 33 different AIDs. METHODS: Data on patients with AIDs were ...

Memory tests are sensitive to early identification of Alzheimer's disease (AD) but less useful as the disease advances. However, assessing particular types of recognition memory may better characterize dementia severity in later stages of AD. We sought to examine patterns of recognition memory deficits in individuals with AD and mild ...

The aim of this work was to evaluate the influence of protein-bound polysaccharide Kureha(PSK) on murine dendritic cells (DCs). These impacts of PSK on DCs from bone marrow derived DCs(BMDCs) were assessed with inverted phase contrast microscope, conventional scanning electron microscopy (SEM), transmission electron microscopy (TEM) for morphology, fluorescence activated ...

ABSTRACT: BACKGROUND: One possible approach towards avoiding alert overload and alert fatigue in Computerized Physician Order Entry (CPOE) systems is to tailor their drug safety alerts to the context of the clinical situation. Our objective was to identify the perceptions of physicians on the usefulness of clinical context information for ...

In this single-center, double-blind, randomized, sham-controlled, prospective trial at the U.S. Air Force School of Aerospace Medicine, the effects of 2.4 atmospheres absolute (ATA) hyperbaric oxygen (HBO2) on post-concussion symptoms in 50 military service members with at least 1 combat-related, mild traumatic brain injury were examined. Each subject received 30 ...

ABSTRACT: BACKGROUND: Plantar fibromatosis is a benign disease creating nodules on the medial plantar side of affected patients. While surgical removal is regarded as the therapeutic mainstay, recurrence rates and impairment of daily activities remains substantial. High-energy focussed extracorporeal shockwave therapy has been suggested to be potentially effective in plantar ...

We conducted a qualitative content analysis of written responses from 148 college men to questions about pregnancy resolution and marriage in the event of an unplanned pregnancy. We used Marsiglio's ( 1991 ) concepts of procreative consciousness and responsibility as a source of theoretical sensitivity during data analysis. Men's written ...

Non-Hodgkin's lymphoma (NHL) is a heterogeneous and highly disseminated disease, but the mechanisms of its growth and dissemination are not well understood. Using a mouse model of this disease, we employed multimodal imaging, including intravital microscopy (IVM) combined with bioluminescence, as a powerful tool to better elucidate NHL progression. We ...

ABSTRACT: BACKGROUND: The main cause of treatment failure and death in laryngeal squamous cell carcinoma is metastasis to the regional lymph nodes. The current clinical staging criteria fail to differentiate patients with occult metastasis from patients without metastasis. Identifying molecular markers of the disease might improve our understanding of the ...

ABSTRACT: BACKGROUND: Cyclophilin A (CypA) is a cytosolic protein possessing peptidyl-prolyl isomerase activity that was recently reported to be overexpressed in several cancers. Here, we explored the biology and molecular mechanism of CypA in non-small cell lung cancer (NSCLC). METHODS: The expression of CypA in human NSCLC cell lines was ...

We previously reported a small-scale study on the efficacy of Histidine-Tryptophan-Ketoglutarate solution (HTK) versus University of Wisconsin solution (UW) on pancreas preservation for islet isolation. In this large-scale, retrospective analysis (n = 252), we extend our initial description of the impact of HTK on islet isolation outcomes and include pancreatic ...

• Premise of the study: Orchids rely on mycorrhizal fungi for seed germination, and many species maintain associations during later stages in their life cycle. Because of the critical dependence of orchids on fungi it has been suggested that the degree of mycorrhizal specificity may be associated with rarity and ...

For more than 20 years, the observation that impermeable oxidants can stimulate cell growth has not been satisfactorily explained. The discovery of sirtuins provides a logical answer to the puzzle. The NADH-dependent transplasma membrane electron transport system, which is stimulated by growth factors and interventions such as calorie restriction, can ...

Many reports on water-compatible palladium catalysts have appeared in the recent literature. For hydrophobic substrates, mixtures with pure water are biphasic, and it is widely not regarded that the elusive locality of the catalytic process (in water, the organic layer, or at the phase boundary) has an important impact on ...

Abstract Background: In spite of the tremendous progress achieved in medical sciences in the last century, the management of diabetes mellitus, a disease as old as mankind, is poor. Diabetes is currently the world's largest endocrine disorder, and estimates are that it affects almost 5% of the population. Ayurveda, the ...

Hepatic vitamin A stores should be the best early indicator of vitamin A status because more than 90% of total body vitamin A is stored in the liver. The objective of the present study was to evaluate the hepatic vitamin A stores in all stages of chronic liver disease (CLD), ...

Abstract Background: Approximately 20% of deaths in the United States occur in the intensive care unit (ICU). Physician trainees lack the practical communication skills required for end-of-life care, including establishing patient preferences, participating in shared decision making, discussing prognosis, and delivering bad news. Utilizing facilitated, case-based, peer interactions, we sought ...

Although the combined presence of ataxia and pyramidal features has a long differential, the presence of a true spastic-ataxia as the predominant clinical syndrome has a rather limited differential diagnosis. Autosomal recessive ataxia of Charlevoix-Saguenay, late-onset Friedreich ataxia, and hereditary spastic paraplegia type 7 are examples of genetic diseases with ...

The potential energy surface (PES) of H(2) addition to the Ru═N bond of a model five-coordinate ruthenium amide (Ru═N), leading to an octahedral trans-Ru(H)(2)(diamine)(diphosphine) (HRu-NH) and subsequent acetophenone hydrogenation, is studied using M06 density functional theory methods. A qualitative molecular orbital analysis reveals that H(2) addition to the ground state ...

Ohmic contact formation at the interface of the Au nanoparticle (NP)-ZnO nanosheet (NS), which facilitates photoelectron transfer from ZnO NSs to Au NPs, is determined by scanning Kelvin microscopy for the first time. Reduction of charge recombination in the ZnO NSs confirmed by the quench of green band emission results ...

OBJECTIVE: To test whether demographic characteristics predict registered nurses' attitudes toward birth practices. DESIGN: A secondary analysis of a cross-sectional survey, the National Maternity Care Attitudes Survey. SETTING: A national survey conducted with health care providers providing maternity care in Canada. PARTICIPANTS: A convenience sample of 545 registered nurses. METHODS: ...

<BOLD>PURPOSE: </BOLD> Sinonasal undifferentiated carcinoma (SNUC) is a rare and aggressive cancer. Despite the use of multi-modality treatment, the overall prognosis remains poor. To better understand the biological features of SNUC and help develop new therapies for the disease, we established SNUC cell lines and characterized their biological behaviors. <BOLD>Methods:</BOLD> ...

The electrocatalytical process at the air cathode in novel silicon-air batteries using the room-temperature ionic liquid hydrophilic 1-ethyl-3-methylimidazolium oligofluorohydrogenate [EMI⋅2.3 HF⋅F] as electrolyte and highly doped silicon wafers as anodes is investigated by electrochemical means, X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR) spectroscopy. The results obtained by XPS ...

ABSTRACT: INTRODUCTION: The slope of phase III of the capnogram (SIII) relates to progressive emptying of the alveoli, a ventilation/perfusion mismatch, and ventilation inhomogeneity. SIII depends not only on the airway geometry, but also on the dynamic respiratory compliance (Crs); this latter effect has not been evaluated. Accordingly, we established ...

In and out of tube: Robust poly-3,4-ethylene-dioxythiophene nanostructures in the form of nanopore arrays and inverse nanotube arrays are obtained by site-selective deposition into TiO(2) nanotubes. The deposition process critically depends on the applied potential and is in line with three-dimensional (3D) progressive and 3D instantaneous nucleation-growth mechanism, leading to ...

Hyperinsulinaemic hypoglycaemia (HH) is characterized by unregulated insulin secretion from pancreatic β-cells. Untreated hypoglycaemia in infants can lead to seizures, developmental delay, and subsequent permanent brain injury. Early identification and meticulous management of these patients is vital to prevent neurological insult. Mutations in eight different genes (ABCC8, KCNJ11, GLUD1, CGK, ...

The effect of nanoroughness on contact angles and pinning is investigated experimentally and numerically for low energy surfaces. Nanoroughness can improve or impair the liquid repellency of superhydrophobic surfaces, which were made from assembled raspberry particles. In the studied system nanoroughness is introduced by chemical vapor deposition of tetraethoxysilane and ...