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Laser induced fluorescence studies of the biodistribution of carotenoporphyrins in mice

The biodistribution of two recently developed tumour markers, trimethylated (CP(Me)(3)) and trimethoxylated (CP(OMe)(3)) carotenoporphyrin, was investigated by means of laser-induced fluorescence (LIF) after i.v. injection into 38 tumour-bearing (MS-2 fibrosarcoma) female Balb/c mice. At 3, 24, 48 or 96 h after administration, the carotenoporphyrin fluorescence was measured in tumoral and peritumo

Hypothalamic involvement and insufficient sex steroid supplementation are associated with low bone mineral density in women with childhood onset craniopharyngioma.

Context: Data on bone mineral density (BMD) are lacking in adults with childhood onset (CO)-craniopharyngioma (CP) with hypothalamic damage from the tumour. In patients with CO GH deficiency BMD increases during GH treatment. Objective: The aims were to evaluate BMD in adults with CO-CPs on complete hormone replacement, including long-term GH and to evaluate the impact of hypothalamic damage on th

Microarray analysis of B-cell stimulation.

B-cell development to antibody-producing plasma cells requires the concerted function of a large number of genes and proteins. Genome-level expression profiling during human B-cell maturation was studied in anti-immunoglobulin M-stimulated Ramos cells. cDNA microarrays were used to follow changes in the transcriptome over several days. Close to 1500 genes had significantly altered expression at le

Celecoxib synergizes human pancreatic ductal adenocarcinoma cells to sorafenib-induced growth inhibition.

BACKGROUND: Pancreatic ductal adenocarcinoma is frequently associated with aberrant activation of the Ras/Raf/MAPK pathway and cyclooxygenase-2 (COX-2) overexpression. This study evaluated the potential for combining the multikinase inhibitor sorafenib and the specific COX-2 inhibitor celecoxib as therapy in pancreatic ductal adenocarcinoma cells. METHODS: BxPC-3, MIAPaCa-2, PANC-1 and AsPC-1 pan

Dyschromatosis universalis hereditaria: familial case and ultrastructural skin investigation

We report a familial case of dyschromatosis universalis hereditaria (DUH) which is compatible with an autosomal dominant inheritance. The male proband from Bangladesh presented with randomly distributed hyper- and hypo-pigmented skin lesions of variable shape and size with a mottled appearance. Three additional members of the non-consangineous family are similarly affected. Light and electron micr

Characteristics and Quality of Life of Patients Who Choose Home Care at the End of Life.

Cancer patients with advanced disease and short-survival expectancy were given hospital-based advanced home care (AHC) or conventional care (CC), according to their preference. The two groups were compared at baseline to investigate whether there were differences between the AHC and the CC patients that may help explain their choice of care. The patients were consecutively recruited over 2(1/2) ye

IgG Antibody Response to Toxins A and B in Patients with Clostridium difficile Infection.

IgG antibodies against Clostridium difficile toxins A and B were followed in controls and patients with an initial C. difficile infection (CDI). Of the 50 CDI patients, 38 were cured and 12 developed recurrence. Compared to controls, patients had significantly lower anti-toxin A and B IgGs at inclusion, but the subsequent levels rose slightly regardless of clinical outcome. The results imply that

n-CoDeR concept: unique types of antibodies for diagnostic use and therapy.

The n-CoDeR recombinant antibody gene libraries are built on a single master framework, into which diverse in vivo-formed complementarity determining regions (CDRs) are allowed to recombine. These CDRs are sampled from in vivo-processed and proof-read gene sequences, thus ensuring an optimal level of correctly folded and functional molecules. By the modularized assembly process, up to six CDRs can

Concentration variability of potent allergens of p-tert-Butylphenol-formaldehyde resin (PTBP-FR) in patch test preparations and commercially available PTBP-FR.

Background: p-tert-Butylphenol-formaldehyde resin (PTBP-FR) is a common component of glues used in the manufacturing of many plastic, electronic, rubber, wood, and leather products. Two main allergens of PTBP-FR have been described. Objectives: The objective of this study is to determine the concentrations of the two main allergens of PTBP-FR in diagnostic patch testing preparations and PTBP-FR av

Tracking differentiating neural progenitors in pluripotent cultures using microRNA-regulated lentiviral vectors.

In this study, we have used a microRNA-regulated lentiviral reporter system to visualize and segregate differentiating neuronal cells in pluripotent cultures. Efficient suppression of transgene expression, specifically in undifferentiated pluripotent cells, was achieved by using a lentiviral vector expressing a fluorescent reporter gene regulated by microRNA-292. Using this strategy, it was possib

Apoptosis-inducing factor mediates dopaminergic cell death in response to lps-induced inflammatory stimulus Evidence in Parkinson's disease patients.

We show that intranigral lipopolysaccharide (LPS) injection, which provokes specific degeneration of DA neurons, induced caspase-3 activation in the rat ventral mesencephalon, which was mostly associated with glial cells. In contrast, nigral DA neurons exhibited AIF nuclear translocation in response to LPS. A significant decrease of the Bcl-2/Bax ratio in nigral tissue after LPS injection was obse

The Impact of Meal Attributes and Nudging on Healthy Meal Consumption — Evidence from a Lunch Restaurant Field Experiment

We use a field experiment in a lunch restaurant to analyze how meal attributes and a “nudge” impact healthy labeled meal consumption. The nudge consists of increasing the salience of healthy labeled meals by placing them at the top of the menu. We find that certain meal attributes (e.g. poultry and red meat) greatly increase both sales and the market share of the healthy labeled meal. We conclude

Different molecular behavior of CD40 mutants causing hyper-IgM syndrome.

CD40/CD40 ligand (CD40L) cross-talk plays a key role in B-cell terminal maturation in the germinal centers. Genetic defects affecting CD40 cause a rare form of hyper-immunoglobulin M (IgM) syndrome, a disorder characterized by low or absent serum IgG and IgA, associated with recurrent infections. We previously reported on a few patients with homozygous CD40 mutations resulting in lack or severe re

Exogenous Glutamate Modulates Porcine Retinal Development in vitro.

Embryogenesis of the retina is a complex event orchestrated by a multitude of physical and biochemical signals. To study the impact of intrinsic developmental cues, the retinal tissue can be isolated in culture which also enables modulation of normal development for other purposes, i.e. transplantation of specific neuronal cell types. In the present experiment, cell type development of immature po

Moraxella catarrhalis: from interactions with the host immune system to vaccine development.

Moraxella catarrhalis is a human-restricted commensal that over the last two decades has developed into an emerging respiratory tract pathogen. The bacterial species is equipped with various adhesins to facilitate its colonization. Successful evasion of the human immune system is a prerequisite for Moraxella infection. This strategy involves induction of an excessive proinflammatory response, inte