[Intraoperative magnet in removal of intracerebral metallic foreign bodies].

Background: Advisability of magnets in neurotrauma is due to pattern of patients admitted to neurosurgical departments of military hospitals with wounds accompanied by intracranial fixation of foreign metallic ferromagnetic bodies.

Objective: To study dimensions, mass and magnetic properties of fragments extracted from gunshot wounds inflicted by modern weapons; to assess the feasibility of devices and instruments for removing foreign bodies.

Material And Methods: We analyzed foreign bodies extracted after gunshot wounds.

[Assessment of species diversity of anaerobic intestinal microbiota in children and adolescents with exogenous constitutional obesity].

The problem of the increasing obesity among children and adolescents is urgent. One of the most interesting and promising directions in this area is to study the correlation of individual microorganisms with the presence and absence of obesity. of the study was to assess the correlation between the isolation frequency of individual microorganisms and the presence of obesity in children and adolescents and to identify possible associations between different groups of microorganisms in obese patients.

Mass Spectrometry of Collagen-Containing Allogeneic Human Bone Tissue Material.

The current paper highlights the active development of tissue engineering in the field of the biofabrication of living tissue analogues through 3D-bioprinting technology. The implementation of the latter is impossible without important products such as bioinks and their basic components, namely, hydrogels. In this regard, tissue engineers are searching for biomaterials to produce hydrogels with specified properties both in terms of their physical, mechanical and chemical properties and in terms of local biological effects following implantation into an organism.

An Increase in the Left Atrium Volume During Exercise is Associated With a Positive Result of a Diastolic Stress Test in Patients With Arterial Hypertension.

Aim: To study the relationship between changes in left atrial volume (LAV) during exercise and the result of a diastolic stress test (DST) in patients with arterial hypertension (AH).

Material And Methods: The study included 219 patients with AH without ischemic heart disease and atrial fibrillation. During the DST performed before and after exercise, the ratio of transmitral flow velocity to mitral annular velocity (E/e'), the left atrial global longitudinal strain in the reservoir phase (reservoir strain), and LAV were determined.

3D Bioprinting of Hyaline Articular Cartilage: Biopolymers, Hydrogels, and Bioinks.

The musculoskeletal system, consisting of bones and cartilage of various types, muscles, ligaments, and tendons, is the basis of the human body. However, many pathological conditions caused by aging, lifestyle, disease, or trauma can damage its elements and lead to severe disfunction and significant worsening in the quality of life. Due to its structure and function, articular (hyaline) cartilage is the most susceptible to damage.