Influence of hight - fat diets with different fatty-acid composition on rat periodontal condition

Aim: Determine the effect of high-fat diets (HFD) with different fatty acid composition on the condition of the gums of rats. Materials and Methods: 4 types of edible fats were used: sunflower oil ( main acid - linoleic), olive oil (main acid -oleic acid), palm oil ( main acid - palmitic acid) and butter (the main acids are palmitic acid, oleic acid, short- and medium- chain fatty acids). They were administered to rats in rations containing 15% of the above oils. Rats were fed for 41 days. The increase in live weight, the presence of hyperlipidemia, systemic inflammation, the presence of inflammation and the level of nonspecific immunity and antioxidant protection in the gums of rats were determined. Results: HFD containing high palmitic fats cause the development of obesity, hyperlipidemia, systemic inflammation, inflammation and dystrophic process in the gums, as well as a decrease in the level of nonspecific immunity and antioxidant protection. The smallest pathogenic effect has the consumption of olive oil. Conclusions: High-fat diet using high palmitic fats may be one of the main causes of periodontitis

Influence of a high-fat diet on inflammation and dysbiotic processes in the gums and blood serum of rats with lincomycin dysbiosis

Background. To determine the effect on the periodontium and the whole organism of excessive consumption of palm oil, against the background of lincomycin dysbiosis.Methods.The experiments were carried out on rats, divided into 3 groups: 1st ‒ control, 2nd and 3rd with dysbiosis, which was reproduced using lincomycin administered with drinking water at a dose of 60 mg / kg for 5 days. Rats of the 3rd group additionally received palm oil at a dose of16 g / kg with food. Rats were fed for 21 days. The activity of elastase, urease, lysozyme, catalase, and the content of malondialdehyde (MDA) and hyaluronic acid were determined in the blood serum and in the gums of rats.Results. In rats, the administration of lincomycin caused an increase in the serum and gum activity of elastase and MDA content, an increase in urease activity and the degree of dysbiosis, but a significant decrease in lysozyme activity.Conclusion. The introduction of lincomycin causes the development of systemic inflammation and generalized dysbiosis, the development of gingivitis and dysbiosis in the gums, especially when combining the administration of lincomycin with the consumption of palm oil

Second-layer nucleation in coherent Stranski-Krastanov growth of quantum dots

We have studied the monolayer-bilayer transformation in the case of the coherent Stranski-Krastanov growth. We have found that the energy of formation of a second layer nucleus is largest at the center of the first-layer island and smallest on its corners. Thus nucleation is expected to take place at the corners (or the edges) rather than at the center of the islands as in the case of homoepitaxy. The critical nuclei have one atom in addition to a compact shape, which is either a square of i*i or a rectangle of i*(i-1) atoms, with i>1 an integer. When the edge of the initial monolayer island is much larger than the critical nucleus size, the latter is always a rectangle plus an additional atom, adsorbed at the longer edge, which gives rise to a new atomic row in order to transform the rectangle into the equilibrium square shape.Comment: 6 pages, 4 figures. Accepted version, minor change

Problem of the noise-noise correlation function in hot non-Abelian plasma

In this work on the basis of Kadomtsev's kinetic fluctuation theory we present the more general expression for noise-noise correlation function in effective theory for ultrasoft field modes.Comment: 3 pages, REVTeX

The Boltzmann equation for colourless plasmons in hot QCD plasma. Semiclassical approximation

Within the framework of the semiclassical approximation, we derive the Boltzmann equation describing the dynamics of colorless plasmons in a hot QCD plasma. The probability of the plasmon-plasmon scattering at the leading order in the coupling constant is obtained. This probability is gauge-independent at least in the class of the covariant and temporal gauges. It is noted that the structure of the scattering kernel possesses important qualitative difference from the corresponding one in the Abelian plasma, in spite of the fact that we focused our study on the colorless soft excitations. It is shown that four-plasmon decay is suppressed by the power of $g$ relative to the process of nonlinear scattering of plasmons by thermal particles at the soft momentum scale. It is stated that the former process becomes important in going to the ultrasoft region of the momentum scale.Comment: 41, LaTeX, minor changes, identical to published versio

Zel'dovich states with very small mass and charge in nonlinear electrodynamics coupled to gravity

It is shown that in non-linear electrodynamics (in particular, Born-Infeld one) in the framework of general relativity there exist "weakly singular" configurations such that (i) the proper mass M is finite in spite of divergences of the energy density, (ii) the electric charge q and Schwarzschild mass m ~ q can be made as small as one likes, (iv) all field and energy distributions are concentrated in the core region. This region has an almost zero surface area but a finite longitudinal size L=2M. Such configurations can be viewed as a new version of a classical analogue of an elementary particle.Comment: 11 pages. 1 reference added. To appear in Grav. Cosm