A I Volozhin

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The book contains data about the functions and the metabolism of mineralized tissues, and the results of investigations of bone tissue and calcium metabolism during manned space missions and ground-based simulations. Consideration is given to the bone strength characteristics under experimental hypo- and hypergravity. The role of hormonal and(More)
This paper describes the laser photopolymerization of a liquid mixture of polyfunctional acrylic monomers, photoinitiator and hydroxyapatite (HA). Pure polymeric and composite materials of specific shape and structure were fabricated by laser stereolithography based on images derived from three-dimensional (3D) computer modeling. The polymeric objects then(More)
Examinations of 87 women with various disorders of ovarian function (amenorrhea, ovariectomy, climacteric period) and 26 healthy women with normal ovarian function have revealed reduced mineral content of the osseous tissue and a lowered ultrasound velocity propagation in the mandible and ulnar bones in women with hypoestrogenemia. Periodontal disorders(More)
A total of 104 subject were investigated and divided into 3 groups: 1. virtually healthy, without any clinical sign of periodontal inflammation; 2. periodontitis patients without internal organs affliction; 3. patients with renal pathology in which periodontitis was a concomitant disease. Biochemical investigation of the blood, oral and gingival fluids was(More)
Periodontal dressing consisting of collagen and Lactobacillus casei 37 cell suspension (cell concentration 108 cells/ml) was created and used in combined treatment of patients with chronic generalized parodontitis. Efficacy of the developed isolation was explained by a considerable decrease of the number and frequency of isolation of aggressive microbial(More)
We have investigated the biocompatibility of calcium phosphate coatings deposited by pulsed laser ablation from hydroxyapatite (HA) targets onto polyethylene and Teflon substrates. It was found that the cell density, attachment, and morphology of primary rat calvaria osteoblasts were influenced by both the original polymer and by the nature of the apatite(More)
Urea levels were measured in the saliva of 30 patients with acute and chronic maxillofacial inflammation treated with multiple modalities including hyperbaric oxygenation (HBO). Urea concentrations were evaluated before, in the course of and after HBO session. A total of four 40-min sessions were made (1 session a day, 1.5 atm). Elevated concentrations of(More)
We compared the morphology and differentiation characteristics of the human cells from bone marrow, adipose tissue, hair papilla and skin dermis. All cell types showed fibroblastic morphology. Immunofluorescent analysis showed that adipose tissue derived stem cells (ADAS) and hair papilla cells (HPC) expressed CD105, CD49d and STRO-1, bone marrow(More)
The investigations were directed at finding out the peculiarities of both periodontal microflora and local immunity under extreme conditions (spaceflight, saturation diving, antiorthostatic hypokinesia). The obtained results revealed different kinds of interactions amongst which saturation diving resulted in the most severe decrease of commensale microflora(More)