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Molecularly imprinted polyallylamine hydrogels: another reassessment

Researchers in the scientific community actively discuss the fact that polymer hydrogels synthesized by crosslinking polly(allylamine hydrochloride) (PAH) with epichlorohydrin (EPI) in the presence of D-glucose-6-phosphate monobarium salt do not show or show imprinting on the molecular level. In the work reported here, a polymer hydrogel was synthesized in the presence of flumequine (FQ) by crossl

Transient Access to the Protein Interior: Simulation versus NMR.

Many proteins rely on rare structural fluctuations for their function, whereby solvent and other small molecules gain transient access to internal cavities. In magnetic relaxation dispersion (MRD) experiments, water molecules buried in such cavities are used as intrinsic probes of the intermittent protein motions that govern their exchange with external solvent. While this has allowed a detailed c

Impaired opsonization with complement and phagocytosis of Streptococcus pyogenes in sera from subjects with inherited C2 deficiency

Although subjects with inherited defects of the classical complement pathway component C2 are at increased risk of infection, there are few experimental data available on which bacterial pathogens they might be susceptible to. In order to investigate whether patients with inherited C2 deficiency may have increased susceptibility to Streptococcus pyogenes infection we have analysed opsonization wit

Outcomes in RBC transfusion-dependent patients with Low-/Intermediate-1-risk myelodysplastic syndromes with isolated deletion 5q treated with lenalidomide: a subset analysis from the MDS-004 study

ObjectiveA subset analysis of the randomised, phase 3, MDS-004 study to evaluate outcomes in patients with International Prognostic Scoring System (IPSS)-defined Low-/Intermediate (Int)-1-risk myelodysplastic syndromes (MDS) with isolated del(5q). MethodsPatients received lenalidomide 10mg/d (days 1-21; n=47) or 5mg/d (days 1-28; n=43) on 28-d cycles or placebo (n=45). From the placebo and lenalid

Temperature, size, reproductive allocation, and life-history evolution in a gregarious caterpillar

The present study aimed to investigate the relationship between growth rate, final mass, and larval development, as well as how this relationship influences reproductive trade-offs, in the context of a gregarious life-style and the need to keep an optimal group size. We use as a model two sympatric populations of the pine processionary moth Thaumetopoea pityocampa, which occur in different seasons

Surrogate antigens as targets for proteome-wide binder selection

In the past decade, many initiatives were taken for the development of antibodies for proteome-wide studies, as well as characterisation and validation of clinically relevant disease biomarkers. Phage display offers many advantages compared to antibody generation by immunisation because it is an unlimited resource of affinity reagents without batch-to-batch variation and is also amendable for high

In vivo distribution of tiotropium in a rodent model utilizing AP-SMALDI mass spectrometry imaging

Background: Matrix-assisted laser desorption/ionization mass spectrometry imaging has proved to be a powerful tool in localization of endogenous molecules in thin tissue sections. Distributions of drug compounds following administration in experimental animal models can be spatially detected and superimposed upon histological images thereby identifying the tissue compartments involved in drug upta

Bleeding complications after central line insertions: relevance of pre-procedure coagulation tests and institutional transfusion policy.

BACKGROUND: The aim of this study was to map pre-procedural variables for insertion of a central venous catheter, prophylactic blood component use and to investigate whether any independent variable could be identified as an independent risk factor for associated bleeding complications in patients outside the intensive care unit. METHODS: In this retrospective study, we investigated 1737 consecuti

Biological Functions of Iduronic Acid in Chondroitin/Dermatan Sulfate.

The presence of iduronic acid in chondroitin/dermatan sulfate changes the properties of the polysaccharides, as it generates a more flexible chain with increased binding potentials. Iduronic acid in chondroitin/dermatan sulfate influences multiple cellular properties such as migration, proliferation, differentiation, angiogenesis and regulation of cytokine/growth factor activities. During patholog

Circulating sex hormones and breast cancer risk factors in postmenopausal women: reanalysis of 13 studies

BACKGROUND: Breast cancer risk for postmenopausal women is positively associated with circulating concentrations of oestrogens and androgens, but the determinants of these hormones are not well understood. METHODS: Cross-sectional analyses of breast cancer risk factors and circulating hormone concentrations in more than 6000 postmenopausal women controls in 13 prospective studies. RESULTS: Concent

MicroRNAs are essential for stretch-induced vascular smooth muscle contractile differentiation via miR-145-dependent expression of L-type calcium channels.

Stretch of the vascular wall is an important stimulus to maintain smooth muscle contractile differentiation that is known to depend on L-type calcium influx, Rho-activation and actin polymerization. The role of microRNAs in this response was investigated using tamoxifen-inducible and smooth muscle specific Dicer KO mice. In the absence of Dicer, which is required for microRNA maturation, smooth mu

The mediating role of acceptance in multidisciplinary cognitive behavioral therapy for chronic pain

Cognitive Behavioral Therapy (CBT) is the most frequently delivered psychological intervention for adults with chronic pain. The treatment yields modest effect sizes and the mechanisms of action remain understudied and unclear. Efforts are needed to identify treatment mediators that could be used to refine CBT and improve outcomes. The primary aim of this study is to investigate whether pain-relat

Understanding the Molecular Activity of Alkaline Sphingomyelinase (NPP7) by Computer Modeling

The enzymes in the nucleotide pyrophosphatase/phosphodiesterase (NPP) family have various substrates such as nucleotides, phospholipids, and sphingolipids. The substrate specificity in relation to their structures is largely unknown because no mammalian NPP complex has been crystallized. NPP7, also called alkaline sphingomyelinase (alk-SMase), is a NPP family member that may have important implica

Motor, mental and behavioral developments in infancy are associated with fatty acid pattern in breast milk and plasma of premature infants.

The objective of this study was to investigate any association between infants' early development and PUFA concentrations in early breast milk and infants' plasma phospholipids at 44 weeks gestational age. Fifty-one premature infants were included. The quality of general movement was assessed at 3 months, and motor, mental and behavioral development at 3, 6, 10 and 18 months corrected age using Ba

Educational Homogamy and Gender-Specific Earnings: Sweden, 1990–2009

Abstract in UndeterminedSeveral studies have shown strong educational homogamy in most Western societies, although the trends over time differ across countries. In this article, we study the connection between educational assortative mating and gender-specific earnings in a sample containing the entire Swedish population born 1960-1974; we follow this sample from 1990 to 2009. Our empirical strate

Pre- and perinatal hypoxia associated with hippocampus/amygdala volume in bipolar disorder

Background Pre- and perinatal adversities may increase the risk for schizophrenia and bipolar disorder. Hypoxia-related obstetric complications (OCs) are associated with brain anatomical abnormalities in schizophrenia, but their association with brain anatomy variation in bipolar disorder is unknown. Method Magnetic resonance imaging brain scans, clinical examinations and data from the Medical Bir

Characterization of the agglomeration of roasted shredded cassava (Manihot esculenta crantz) roots

Roasted and granulated cassava roots flour, known as 'rale' in the south of Mozambique, is a common meal in sub-Saharan Africa and is consumed reconstituted with hot or cold water. In this work, analysis of rale was carried out with the aim of understanding what determines the agglomeration properties. Rale is agglomerated roasted cassava flour with about 95% of starch gelatinized. The pre-gelatin

Spreading of α-synuclein in the face of axonal transport deficits in Parkinson's disease: A speculative synthesis.

Parkinson's disease (PD) is mainly attributed to degeneration of dopamine neurons in the substantia nigra, but its etiopathogenesis also includes impaired protein clearance and axonal transport dysfunction, among others. The spread of α-synuclein (α-syn) aggregates from one neuron to another, in a prion-like manner, is hypothesized to contribute to PD progression. Axonal transport is likely to pla

Covenants in Venture Capital Contracts

This paper studies how covenants are included in contracts between venture capitalists (VCs) and entrepreneurs. I show that VCs hold covenanted veto rights even though they are shareholders who have access to other powerful governance solutions. Unlike bank loans and bonds, venture capital (VC) contracts exhibit considerable variation in their contractual designs. I exploit this variation to confi