Wear Resistance of Ti-6Al-4V Alloy Ball Heads for Use in Implants.

The effect of thermohydrogen treatment and vacuum ion-plasma nitriding on the determination of the volume and surface structure of ball heads made of Ti-6Al-4V alloy was studied. It was found that the submicrocrystalline structure formed in the head during thermohydrogen treatment makes it possible to achieve hardness values of 39-41 units HRC and a surface roughness of 0.02 μm.

[Treatment of spasticity after traumatic brain injury in children: the role of botulinum toxin therapy].

Traumatic brain injury (TBI) is one of the main reasons of death and disability in children and adolescents in Russia and abroad. Spasticity is a frequent outcome of the TBI that influences on the rehabilitation prognosis, degree of movement disorders and quality of life after trauma. Early spasticity correction and complex rehabilitation lead to the optimal recovery and prevent secondary complications.

[Nitric oxide microcirculatory unit of hemostasis system].

Nitric oxide plays a dominant role in regulation of different cells, tissues, organs and system in the body including cardiovascular system. Take into consideration a major role of microcirculatory disorders in pathogenesis of various illnesses in this review take up the role of nitric oxide in microcirculatory regulation, especially of it intravascular component, witch functioning depends from the functions of microcirculatory unit of hemostasis system.

Use of terahertz electromagnetic radiation for correction of blood rheology parameters in patients with unstable angina under conditions of treatment with isoket, an NO donor.

The effect of terahertz electromagnetic radiation at the emission and absorption frequencies of NO molecular spectrum on blood rheology were studied in vitro in patients with unstable angina treated with isoket (NO donor). Irradiated NO donor isoket produced better normalizing effect on blood viscosity and erythrocyte deformability in patients with unstable angina.

[Genetic aspects of heart lesions in patients with chronic alcoholism].

Parents and their children from 40 families of the first generation and 38 families of the second generation were examined genetically for catalase activity in the serum. It was found that children of the first generation suffered from chronic alcoholism more frequently in the families in which either mother or both parents abused alcohol. Low activity of serum catalase occurred in those children of the second generation, whose both parents were chronic alcoholics and had low catalase activity, especially of their mother.