The accidental ingestion of fish bones is common. However, the complication of migration wherein the fish bone penetrated through the esophagus and into the right upper lobe is extremely rare. In this case, we present a rare case of recurrent pneumonia caused by a migrated esophageal foreign body. The case ...

Purpose. A large body of research has linked macular lutein and zeaxanthin to reduced risk of degenerative eye disease. The earliest published hypothesis for the role of the pigments was not based on chronic protection but immediate function. Recent data on macular pigment (MP) have shown that screening the foveal ...

Candida spp. are part of the natural human microbiota, but they also represent important opportunistic human pathogens. Biofilm-associated Candida albicans infections are clinically relevant due to their high levels of resistance to traditional antifungal agents. In this study, we investigated the ability of linalool to inhibit the formation of C. ...

Numerous strategies have been developed to mimic the α-helical secondary structure using hybrid peptides containing non-natural amino acids. In contrast to the β- and α/β-hybrid peptides, very little is known about the folding patterns of hybrid peptides containing γ(4)-amino acids. Here we report the solid phase synthesis and crystallographic insight ...

Abstract This study was conducted to explore the effect of adipose-derived stem cells (ASCs) on the graft survival rates of fat particles in rabbits. Six domestic rabbits were used for a 3-month study; 1.4 grams of fat tissues were harvested from the bilateral inguinal regions of each animal. They were ...

Aim There is still no consensus about the optimal surgical approach for esophageal replacement in the case of long-gap esophageal atresia (LGEA) or extensive corrosive strictures. The aim of this article was to perform a meta-analysis comparing the most widely used techniques for esophageal replacement in children: jejunal interposition (JI), colon ...

Despite advances in rheumatoid arthritis (RA) treatment, efficacious and safe disease-modifying therapy still represents an unmet medical need. Here we describe an innovative strategy to treat RA by targeting low doses of vasoactive intestinal peptide (VIP) self-associated with sterically stabilized micelles (SSMs). This spontaneous interaction of VIP with SSM protects ...

BACKGROUND: Hoarding disorder (HD) is currently being considered for inclusion in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), yet remains poorly understood. Consensus is building that hoarding may constitute a separate disorder, although comorbidity remains high and complicates the diagnostic picture. The purpose of this investigation ...

In isolated hippocampal slices, decaying long-term potentiation can be stabilized and converted to late long-term potentiation lasting many hours, by prior or subsequent strong high-frequency tetanization of an independent input to a common population of neurons-a phenomenon known as 'synaptic tagging and capture'. Here we show that the same phenomenon ...

BackgroundRidaforolimus is an inhibitor of mTOR with evidence of antitumor activity in an I.V. formulation. This multicenter, open-label, 3 + 3 design nonrandomized, dose-escalation, phase I/IIa trial was conducted to determine the safety, pharmacokinetic (PK) and pharmacodynamic parameters, maximum tolerated dose, and antitumor activity of oral ridaforolimus.Patients and methodsPatients with metastatic or ...

Stable adherens junctions (AJs) are required for formation of restrictive endothelial barrier. Vascular endothelial (VE) cadherin from contagious endothelial cells forms AJs which are stabilized intracellularly by binding of p120-catenin (p120) and cortical actin. Mechanisms inducing cortical actin formation and enabling its linkage with p120 remain enigmatic. We alter the ...

BACKGROUND: Evidence-based guidelines recommend limited perioperative diagnostic imaging for new breast cancer diagnoses. For patients aged >65 years, conventional imaging use (mammography, plain radiographs, and ultrasound) has remained stable, whereas advanced imaging (computed tomography [CT], nuclear medicine scans [positron emission tomography/bone scans], and magnetic resonance imaging [MRI]) use has increased. ...

A convenient efficient method for synthesis of a flexible cyclic polyamide (cβ, 1) was developed through cyclodimerization. Electrospray ionization mass spectrometry and nuclear magnetic resonance results showed that 1 selectively binds to the c-myb G-quadruplex with high affinity, and there was no binding with the ILPR, bcl-2, and c-kit G-quadruplexes. ...

Neuroblastic tumors are childhood neoplasms that possess amino acid decarboxylase (AADC) activity and can theoretically be imaged by (18)F-fluorodihydroxyphenylalanine ((18)F-FDOPA) PET, a new diagnostic tool for neuroendocrine tumors. In this study, we explored the accuracy and clinical role of (18)F-FDOPA PET in neuroblastic tumors. METHODS: From 2008 to 2011, patients ...

BACKGROUND: Pre-hospital tracheal intubation (TI) is an important but difficult procedure with the potential to produce hypoxaemia. The aim of this study was to determine the incidence of desaturation episodes during out-of-hospital rapid sequence induction (RSI) and TI by the medical team of a German Helicopter Emergency Medical Service (HEMS). ...

BACKGROUND: Vagus nerve stimulation is capable of regulating autonomic nerve function. In Traditional Chinese Medicine, the effect of auricular acupuncture (AA) is mediated by the vagus. This study was designed to investigate the effect of AA on gastrointestinal (GI) motility and the relationship of this effect with the vagus nerve. ...

Five novel neutral homometallic complexes which contain the anthracen-9-olate anion have been prepared and characterised by treating anthrone with an organometallic base to induce aromatisation. Three of these complexes [(donor)·M(OC(14)H(9))](2) () are dimeric and contain sodium, lithium and potassium respectively. For and the donor is N,N,N',N'-tetramethylethylenediamine (TMEDA) whilst for it ...

BACKGROUND: As the likelihood of survival improves over time, the BW- and GA-specific boundaries of discretionary non-resuscitation should fall. HYPOTHESIS: Between 1988 and 2008 reductions in BW- and GA- specific mortality would drive a parallel reduction in BW and GA boundaries of discretionary resuscitation. METHODS: We determined the likelihood of ...

PURPOSE: To optimize 3D radial ultrashort echo time MRI for high resolution whole-lung imaging. METHODS: 3D radial ultrashort echo time was implemented on a 3T scanner to investigate the effects of: (1) limited field-of-view excitation, (2) variable density readouts, and (3) radial oversampling. Improvements in noise performance and spatial resolution ...

The spatial organization of proteins in a cell population or in tissues is an important parameter to study the functionality of biological specimens. In this article, we have focused on tight junctions which form network-like features in immunofluorescence microscopy images. Usually, the organization or disorganization of tight junctions is noticed ...

The objective of this study was to determine the anti-inflammatory properties of grape powder (GP) or GP extract (GE). We examined 1) which polyphenol metabolites in GE were bioavailable, 2) the impact of GP and GE on glucose tolerance and inflammation in obese mice, and 3) if bioavailable polyphenols in ...

This paper describes a synthesis of Au wavy nanowires in an aqueous solution in the presence of cetyltrimethylammonium bromide (CTAB). The resultant Au nanowires automatically separated from the solution and floated at the air/water interface. We investigated the formation mechanism by characterizing the samples obtained at different stages of the ...

Abstract Objective: To test the hypothesis that malocclusion does not have an independent and negative effect on quality of life of adolescents. Materials and Methods: The cross-sectional design study comprised a sample of 519 children, aged 11 to 14 years, attending public schools in Osorio, a city in southern Brazil. One ...

One recently identified subtype of pediatric B-precursor acute lymphoblastic leukemia (ALL) has been termed BCR-ABL1-like or Ph-like because of similarity of the gene expression profile to BCR-ABL1 positive ALL suggesting the presence of lesions activating tyrosine kinases, frequent alteration of IKZF1, and poor outcome. Prior studies demonstrated that approximately half ...

Reaction of PPh(2)(o-C(6)H(4))(CH(2)NMeCH)C(60) () and (μ-H)(3)Re(3)(CO)(11)(NCMe) in refluxing chlorobenzene affords the monorhenium complex HRe(CO)(3)(η(3)-PPh(2)(o-C(6)H(4))(CH(2)NMeCH)C(60)) (), and the dirhenium complexes (μ-H)Re(2)(CO)(7)(μ,η(3)-PPh(o-C(6)H(4))(2)(CH(2)NMeCH)C(60)) () and (μ-H)Re(2)(CO)(5)(μ-SSOH)(μ,η(5)-PPh(2)(o-C(6)H(4))(CH(2)NMeCH)C(60)) (). The structures of have been determined by an X-ray diffraction study. The oxatrisulfanyl (-SSOH) ligand of likely arises from decomposition of CS(2) on silica gel during ...

• Premise of the study: Microsatellite loci were developed for tucumã of Amazonas (Astrocaryum aculeatum), and cross-species amplification was performed in six other Arecaceae, to investigate genetic diversity and population structure and to provide support for natural populations management.• Methods and Results: Fourteen microsatellite loci were isolated from a microsatellite-enriched ...

Raf kinases function downstream of Ras proteins to activate the MEK-ERK pathway which is deregulated in a large number of human cancers. Raf inhibitors are clinically highly effective for the treatment of cancer and melanoma in particular, but have unexpected side effects that include a paradoxical activation of the ERK ...

Human foetal mesenchymal stem cells can be isolated from amniotic membrane (AM-hMSCs) by enzymatic digestion. The biological properties of this cell population have been characterised; however, few studies have focused on the presence of stem cell subpopulations and their differentiation potential. The aim of the present study was to isolate ...

Writing difficulties are common among children with attention-deficit/hyperactivity disorder (ADHD), but the nature of these difficulties has not been well studied. Here we relate behavioral, psycholinguistic, cognitive (memory/executive), and graphomotor measures to spelling skills in school-age girls with ADHD (n = 30) and an age-matched group of typically developed spellers ...

Multiple biological structures have demonstrated fog collection abilities, such as beetle backs with bumps and spider silks with periodic spindle-knots and joints. Many Cactaceae species live in arid environments and are extremely drought-tolerant. Here we report that one of the survival systems of the cactus Opuntia microdasys lies in its ...

An electrosynthesis process has allowed the formation of four oligomers, containing three, four, or five macrocycles. This method is based on the nucleophilic attack of porphyrins substituted by several pendant pyridyl groups to the electrogenerated radical cation of zinc β-octaethylporphyrin (ZnOEP), according to an ECEC processes. Thus, a control of ...

This review presents recent advances in synthetic methods and structural transformations of colloidal 2D layered metal chalcogenide nanocrystals. Planar 2D anisotropy and interlayer van der Waals gaps are the important characteristics of these nanocrystals for pristine disc, plate or sheet morphologies. These 2D nanocrystals undergo unique chemical transformations upon exposure ...

Oxidative protein surface mapping has become a powerful approach for measuring the solvent accessibility of folded protein structures. A variety of techniques exist for generating the key reagent - hydroxyl radicals - for these measurements; however, these approaches range significantly in their complexity and expense of operation. This research expands ...

Estrogen receptor related receptor alpha (ERRα) is an orphan nuclear receptor with sequence homology to the estrogen receptors, ERα/β, but it does not bind estrogen. ERRα not only plays a functional role in osteoblasts but also in osteoclasts and chondrocytes. As well, the ERRs, including ERRα, can be activated by ...

BACKGROUND AND OBJECTIVES: Pretreatment of skin with ablative fractional lasers (AFXL) enhances the uptake of topical photosensitizers used in photodynamic therapy (PDT). Distribution of photosensitizer into skin layers may depend on depth of laser channels and incubation time. This study evaluates whether depth of intradermal laser channels and incubation time ...

A primary consideration when developing lipid nanoparticle (LNP) based small interfering RNA (siRNA) therapeutics is formulation polydispersity or heterogeneity. The level of heterogeneity of physicochemical properties within a pharmaceutical batch could greatly affect the bioperformance, quality, and ability of a manufacturer to consistently control and reproduce the formulations. This article ...

A novel lectin was purified from the fruiting bodies of king bolete mushrooms (Boletus edulis, also called porcino, cep or penny bun). The lectin was structurally characterized: its amino acid sequence and three dimensional structure were determined. The new protein is a homodimer and each protomer folds as β-trefoil domain ...

The mononuclear phagocyte system comprises cells as diverse as monocytes, macrophages and dendritic cells (DCs), which collectively play key roles in innate immune responses and the triggering of adaptive immunity. Recent studies have highlighted the role of growth and transcription factors in defining developmental pathways and lineage relations within this ...

The retinoid-related orphan receptors (RORs) were postulated to have functions in tissue development and circadian rhythm. In this study, we revealed a novel function of RORα (NR1F1) and RORγ (NR1F3) in regulating the human hydroxysteroid sulfotransferase (SULT2A1), a phase II conjugating enzyme known to sulfonate bile acids, hydroxysteroid dehydroepiandrosterone, and ...

A sequential multicomponent process involving the high-speed vibration milling of ketones with N-iodosuccinimide and p-toluenesulfonic acid, followed by addition of a mixture of primary amines, β-dicarbonyl compounds, cerium(iv) ammonium nitrate and silver nitrate afforded polysubstituted, functionalized pyrroles. This one-pot, solid-state process can be considered as the coupling of an α-iodoketone ...

Mechanical boundaries that define and regulate biological processes, such as cell-cell junctions and dense extracellular matrix networks, exist throughout the physiological landscape. During metastasis, cancer cells are able to invade across these barriers and spread to distant tissues. While transgressing boundaries is a necessary step for distal colonies to form, ...

A very facile, general, and reproducible method is developed for the controlled synthesis of discrete and monodisperse concentric and eccentric poly(acrylic acid) (PAA)-coated nanostructures in a large-scale, independent of their size, geometry, or composition. Interestingly, the reversible structural transformation between concentricity and eccentricity can be easily achieved, which is determined ...

Introduction. Fatigue after treatment for breast cancer (BC) is common, but poorly understood. We examined the fatigue levels during first year after radiotherapy (RT) according to the extent of RT (local or locoregional), hormonal therapy (HT) and chemotherapy (CT). The impact of comorbidity was also explored. Moreover, we compared fatigue ...

SUMMARY External cervical resorption (ECR) is a sequela of dentoalveolar trauma that may cause functional, esthetic, and psychologic alterations. The aim of this study was to report a successful multidisciplinary treatment approach performed in a 12-year-old patient who presented with posttraumatic ECR associated with extensive opened cavity, pulp necrosis, and ...

Branching out: The substrate specificity profiles for a range of ketosynthase (KS) domains from trans-AT PKSs are reported. Evidence is provided that a sterically demanding amino acid residue adjacent to the active-site Cys residue confers specificity towards non-β-methyl-branched substrates.

Abstract Objective. The aim was to review the literature on aggressive periodontitis diagnosed during or before the initiation of orthodontic treatment and to propose preventive recommendations before, during and after orthodontic treatment. Materials and methods. Literature searches of free text and MeSH terms were performed by using PubMed, Embase and ...

Hooking up: Subunit γ of an F-ATPase with 11 point mutations was ligated chemically from six peptides and then reconstituted with further subunits of the (αβ)(3) γ catalytic core complex. The biologically active protein with 286 residues currently represents the longest nonredundant polypeptide chain synthesized by chemical means. The yields ...

ABSTRACT: BACKGROUND: According to current classification systems, patients with major depressive disorder (MDD) may have very different combinations of symptoms. This symptomatic diversity hinders the progress of research into the causal mechanisms and treatment allocation. Theoretically founded subtypes of depression such as atypical, psychotic, and melancholic depression have limited clinical ...

OBJECTIVE: To compare ultrasound measurement of median nerve cross-sectional area (CSA) at different anatomical landmarks and to assess the value of power Doppler signals within the median nerve for diagnosis of carpal tunnel syndrome (CTS). METHODS: A prospective study of 135 consecutive patients with suspected CTS undergoing two visits within ...

Metal oxides as a rule oxidize and oxygenate substrates via the Mars-van Krevelen mechanism. A well-defined α-Keggin polyoxometalate, H5PV2Mo10O40, can be viewed as an analog of discreet structure that reacts via the Mars-van Krevelen mechanism both in solution and the gas phase. Guided by previous experimental observations we have studied ...