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IL-1 polymorphisms may predict unsuccessful dental implants?

Aim The aim of this study was to analyse the possible association between no success of dental implants and two polymorphisms, IL1A (-889) and IL1B (+3953), in a Caucasian Portuguese population, and a possible relationship with other potential risk variables associated with a peri-implant disease. Material and Methods 155 unrelated Caucasian individuals, were divided into 2 groups: 100 with successful dental im...

Effects of fluorescent probe NBD-PC on the structure, dynamics and phase transi...

We present a combined theoretical (molecular dynamics, MD) and experimental (differential scanning calorimetry, DSC) study of the effect of 7-nitrobenz-2-oxa-1,3-diazol-4-yl (NBD) acyl chain-labeled fluorescent phospholipid analogs (C6-NBD-PC and C12-NBD-PC) on 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) bilayers. DSC measurements reveal that < 1 mol% of NBD-PC causes elimination of the pre-transition ...

The influence of structure changes in the properties of TiCxOy decorative thin ...

The main purpose of this work consists in the preparation of titanium oxycarbide, TiCxOy, thin films, in which the presence of oxygen changed the film properties between those of titanium carbide and those of titanium oxide. Varying the oxide/carbide ratio allowed to tune the structure of the films between titanium oxide and carbide and consequently electronic, mechanical and optical properties of the films. Th...

Influence of the O/C ratio in the behaviour of TiCxOy thin films

The main purpose of this work consists in the preparation of single layered titanium oxycarbide, TiCxOy, thin films. The obtained results show that the evolution of the different elements concentration with the oxygen flow can be divided into 3 different regimes -- i) carbide, zone I, ii) transition, zone T, and iii) an oxide one, zone II. Structure characterization results showed that the films crystallize in ...

Optimization of filtered neutron beams for the calibration of superheated dropl...

Superheated droplet detectors (SDDs) have been investigated for applications in neutron dosimetry and spectrometry. Varying the detector temperature, it is possible to change the neutron energy detection threshold of SDDs, thus allowing the use of a single detector to measure neutrons of different energy, without any change of the experimental setup. However, the neutron threshold energy versus temperature curv...

Property change in multifunctional TiCxOy thin films: Effect of the O/Ti ratio

TiCxOy films with various O/Ti ratios have been deposited by DC magnetron sputtering, using C pieces incrusted in a Ti target erosion area. Composition analysis revealed the existence of three different growth regimes: (i) zone I, corresponding to films with metallic-like appearance, and atomic ratios O/Ti below one; (ii) zone II, with films revealing interference-like colours, and atomic ratios O/Ti higher tha...

Malignant tumors of the anal region. Histopathological review of 47 cases.

Stress proteins.

Cells from all organisms have developed a remarkable number of strategies to deal with adverse changes in their environment. One of these protective mechanisms is the heat shock response, or stress response, characterized by the extremely rapid increased expression of a selected group of proteins--the heat shock proteins (hsp)--after a sudden increase in the normal cellular growth temperature. The same response...

Diffuse tracheo-bronchial amyloidosis.

The case of a 52 year old man, whose initial clinical manifestations were dyspnea, bloodstained sputum and malaise is reported. After the initial cancer hypothesis, a diagnosis of diffuse primary tracheo-bronchial amyloidosis was made. The amyloid substance present was not of A A type and the plasma cells next to the deposits were polyclonal. The piece-meal removal of the masses by bronchoscopy led to profuse b...