Pharmaceuticals (Basel)
March 2010
Interest in cell-penetrating peptides (CPPs) as delivery agents has fuelled a large number of studies conducted on cultured cells and in mice. However, only a few studies have been devoted to the behaviour of CPPs in human tissues. Therefore, we performed ex vivo tissue-dipping experiments where we studied the distribution of CPP-protein complexes in samples of freshly harvested human tissue material.
View Article and Find Full Text PDFIn order to investigate intervertebral disc (IVD) degeneration and repair, a quantitative non-invasive tool is needed. Various MRI methods including qCPMG, which yields dipolar echo relaxation time (T(DE)), magnetization transfer contrast (MTC), and (1)H and (2)H double quantum filtered (DQF) MRI were used in the present work to monitor changes in rat IVD after ablation of the nucleus pulposus (NP), serving as a model of severe IVD degeneration. In the intact IVD, a clear distinction between the annulus fibrosus (AF) and the NP is obtained on T(2) and T(DE) weighted images as well as on MTC maps, reflecting the high concentration of ordered collagen fibers in the AF.
View Article and Find Full Text PDFBackground: The term "primary failure of eruption" (PFE) refers to the complete or partial failure of a primary non-ankylosed tooth to erupt due to a disturbance of the eruption mechanism. Up to now, the molecular basis for this failure was unknown.
Patients And Methods: Four families were studied in whom at least two members were affected by non-syndromic PFE as part of a clinical and molecular genetics study.
Background: Thrombosis is a rare complication of cytomegalovirus (CMV) infection in immunocompetent patients. The clinical circumstances of this complication have never been studied, to the best of our knowledge.
Aim: We reviewed all reports on CMV-associated thrombosis in immunocompetent adults found in the literature, in search for thrombosis risk factors other than CMV.
J Sports Med Phys Fitness
December 2009
Aim: The aim of this study was to investigate the relationship between jumping height and bone mineral density (BMD) at femoral neck and lumbar spine in pubertal girls with different physical activity pattern.
Methods: The participants were 202 adolescent girls aged 13-15 years comprising six groups: controls (N.=43); sport games (N.
Background: Elevated circulating levels of fetuin-A in blood have been associated with increased risk of cardiovascular disease. The goal of our study was to prospectively investigate the potential causal nature of the association between fetuin-A levels and myocardial infarction (MI) and ischemic stroke by applying a Mendelian randomization approach.
Methods And Results: Five tagging single-nucleotide polymorphisms (rs2248690, rs2070633, rs2070635, rs4917, and rs6787344) capturing the common genetic variation of the fetuin-A coding gene alpha(2)-Heremans-Schmid glycoprotein (AHSG) were genotyped in a case-cohort comprising 214 MI cases, 154 ischemic stroke cases, and 2152 persons who remained free of cardiovascular disease events in the European Prospective Investigation into Cancer and Nutrition-Potsdam study.
Objectives: To study the association between erectile dysfunction (ED) and depressive symptoms in men with coronary artery disease (CAD). A cross-sectional analysis of data obtained during a prospective study was carried out.
Methods: A cohort of men undergoing coronary angiography filled-out the sexual health inventory for males (SHIM) and the mental health inventory 5 (MHI5) questionnaires for detection and severity assessment of both ED and depressive symptoms.
Purpose: To prospectively compare the diagnostic accuracy of steady-state, high-spatial-resolution magnetic resonance (MR) angiography of the lower leg, performed with a blood pool contrast agent, with selective digital subtraction angiography (DSA) as the reference standard in patients with symptomatic peripheral arterial disease.
Materials And Methods: Local ethics committee approval and written informed consent were obtained. In a nonrandomized trial, selective DSA and MR angiography were performed at 3.
The aim of this study was to determine the relationships of bone mineral density (BMD) and content (BMC) with insulin-like growth factor-1 (IGF-1), IGF-binding protein-3 (IGFBP-3) and estradiol in pubertal female athletes. The participants were 170 healthy adolescent girls (13-15 years) who participated in competitive extramural athletic programs, i.e.
View Article and Find Full Text PDFCardiovasc Diabetol
October 2009
Background: Increased resting heart rate (RHR) may be associated with increased cardiovascular morbidity. Our aim was to explore the possibility that increased RHR is associated with the prevalence of the metabolic syndrome (MetS) in a sample of apparently healthy individuals and those with cardiovascular risk factors.
Methods: We performed a cross-sectional analysis in a large sample of apparently healthy individuals who attended a general health screening program and agreed to participate in our survey.
We studied the prevalence of erectile dysfunction (ED) in elderly men, aged 65 years or above, with coronary artery disease (CAD) documented by coronary angiography. A total of 123 men (112 men with CAD and 11 men without CAD), mean age 74.6+/-5.
View Article and Find Full Text PDFMortalin, the mitochondrial hsp70, is a vital constitutively expressed heat shock protein. Its elevated expression has been correlated with malignant transformation and poor cancer prognosis. Cancer cells exhibit increased resistance to complement-dependent cytotoxicity, partly due to their capacity to eliminate the complement membrane attack complex (MAC) from their cell surface.
View Article and Find Full Text PDFIntroduction: Distinguishing community acquired pneumonia (CAP) from chronic obstructive pulmonary disease (COPD) exacerbation is a challenging task, since fever, productive cough, dyspnea, and leukocytosis are all common features of both conditions. Moreover, chest X-ray might not be sensitive enough. It is therefore quite common for physicians to prescribe unnecessary antibiotics for COPD exacerbation, leading to resistant bacteria and other related adverse affects.
View Article and Find Full Text PDFWe present a novel intracavity frequency modulation scheme in a tunable, picosecond optical parametric oscillator (OPO). The OPO signal wavelength can be modulated with a depth of more than 10 nm at a rate of 38 MHz (one half its repetition rate). We discuss the design and construction of the light source and its application to the recently-developed frequency modulation coherent anti-Stokes Raman scattering (FM-CARS) and stimulated Raman scattering (SRS) techniques.
View Article and Find Full Text PDFInt J Pediatr Otorhinolaryngol
September 2009
Objective: To evaluate the health-related quality of life (HRQoL) of adolescents with a diagnosis of specific language impairment (SLI).
Methods: A clinical sample of 67 subjects with a childhood diagnosis of SLI, now aged 12-16, were asked to fill out the generic 16D HRQoL questionnaire. The comparison group comprised 235 typically developing peers.
The purpose of the current study was to clarify further the clinicopathologic significance of thymidine phosphorylase (TP) expression in renal cell carcinoma (RCC). TP expression was evaluated with immunohistochemistry assays using monoclonal anti-TP antibody in formalin-fixed, paraffin-embedded archived specimens of 70 patients with radically operated nonmetastatic RCC (M0 by TNM classification). Semiquantitative analysis, using a scoring system for staining pattern and staining intensity was used.
View Article and Find Full Text PDFThe fabrication of two-dimensional and three-dimensional silicon photonic crystals doped with lead salt nanocrystals is reported. The silicon based photonic crystals of macro-porous silicon are fabricated by electro-chemical etching via masked silicon wafers with the periodicity along the third dimension is achieved by modulating the anodization current and voltage. The chemical solution deposition technique has been utilized to deposit thin layers of lead salts (PbS and PbSe) nanocrystals into the pores.
View Article and Find Full Text PDFThe galanin peptide family and its three receptors have with compelling evidence been implicated in several high-order physiological disorders. The co-localization with other neuromodulators and the distinct up-regulation during and after pathological disturbances has drawn attention to this neuropeptide family. In the current study we present data on receptor binding and functional response for a novel galanin receptor type 2 (GalR2) selective chimeric peptide, M1145 [(RG)(2)-N-galanin(2-13)-VL-(P)(3)-(AL)(2)-A-amide].
View Article and Find Full Text PDFPercept Mot Skills
February 2009
This longitudinal (22 yr.) study examined several psychosocial predictors of higher than normal recommended Body Mass Index and aspects of neurocognitive dysfunction in a community-based sample of 470 participants interviewed in private during childhood, adolescence, emerging adulthood, and adulthood. Included were 5 psychosocial measures: Internalizing Behaviors (i.
View Article and Find Full Text PDFCulture is typically viewed as consisting of traits inherited epigenetically, through social learning. However, cultural diversity has species-typical constraints, presumably of genetic origin. A celebrated, if contentious, example is whether a universal grammar constrains syntactic diversity in human languages.
View Article and Find Full Text PDFObjectives: To characterise and quantify short-term changes in local inflammation using magnetic resonance imaging (MRI), and to correlate the findings with clinical disease activity in response to infliximab in patients with spondyloarthritis.
Methods: 28 consecutive patients with established spondyloarthritis under successful long-term treatment with infliximab underwent MRI immediately before and one week after re-administration of the TNF blocker. C-reactive protein and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) were assessed at both time points.
Species-specific behaviours gradually emerge, via incomplete patterns, to the final complete adult form. A classical example is birdsong, a learned behaviour ideally suited for studying the neural and molecular substrates of vocal learning. Young songbirds gradually transform primitive unstructured vocalizations (subsong, akin to human babbling) into complex, stereotyped sequences of syllables that constitute adult song.
View Article and Find Full Text PDFThe neuronal ceroid lipofuscinoses (NCLs) form a group of autosomal recessively inherited neurodegenerative disorders that mainly affect children. Ten NCL forms can be distinguished by age at onset, clinicopathologic features, and genetics. In eight of these forms, the underlying genes have been identified.
View Article and Find Full Text PDFPyramidal neurons in the piriform cortex of olfactory discrimination trained rats show enhanced intrinsic neuronal excitability that lasts for several days after learning. Such enhanced intrinsic excitability is mediated by long-term reduction in the postburst after hyperpolarization which is generated by repetitive spike firing. The molecular machinery underlying such long-lasting modulation of intrinsic excitability, as well as its exceptional durability, is yet to be fully described.
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