Relevance. Today, despite the development of medical technologies and the improvement of the logistical aspects of healthcare, the problem of unified treatment, diagnostic and routing algorithms for pregnant women and women in labor with urgent surgical pathology remains unresolved. The first step towards its solution is a detailed analysis of the current structure of incidence and routing paths.

The objective was to analyze the incidence of urgent extragenital surgical pathology and routing paths in pregnant women and women in labor in St. Petersburg.

Methods and materials. Based on the database of invoices issued by insurance organizations in St. Petersburg for completed cases of treatment, we performed a retrospective analysis of the data of pregnant patients with extragenital surgical pathology, hospitalized on an emergency basis in the period from 2019 to 2021. We assessed the structure of morbidity, terms of delivery to the hospital, indications and range of surgical interventions, treatment outcomes.

Conclusions. In the structure of urgent and emergency hospitalizations in pregnant women, extragenital surgical pathology is 1 %. The total proportion of surgical interventions in patients with extragenital pathology is 35.1 %. Routing of a pregnant woman with suspected surgical pathology through the primary visit to the maternity hospital significantly increases (p<0.05) the average time to admission to the surgical hospital. > <0.05 ) the average time to admission to the surgical hospital.

The review considers changes in the structure and function of high-density lipoproteins (HDL), which play an important role in the pathogenesis of a number of chronic diseases that somehow stimulate the development of atherosclerosis. HDL function has been shown to be impaired in a number of genetic and acquired diseases leading to dyslipidemia and associated with increased cardiovascular risk such as familial hypercholesterolemia, obesity, metabolic syndrome, chronic kidney disease, diabetes mellitus, inflammatory and autoimmune diseases.

Human carbonic anhydrase isoforms IX and XII play a key role in maintaining acid-base balance in solid tumors, creating a favorable microenvironment for the growth, invasion and metastasis of tumor cells. In the last few years, a number of scientific groups have published results that inhibition of isoforms IX and XII significantly increases the effectiveness of classical chemotherapy, makes it possible to suppress the resistance of tumor cells to chemotherapy and increase their sensitivity to the used drugs (including reducing the dose of cytostatics). In the review, we analyzed the scientific literature on the role of carbonic anhydrase isoforms IX and XII in carcinogenesis and on the combined effect of carbonic anhydrase inhibitors with antitumor drugs.

In this review (Part 2), we describe the structural features and properties of the most studied Viperidae snake venom phospholipases A2 . Various effects of these enzymes on blood cells (erythrocytes, leukocytes and platelets), on blood coagulation and platelet aggregation are also analyzed in details. Possible areas and ways of application of these enzymes in fundamental and practical medicine are discussed.

Introduction. Now, one of the most promising areas for the use of graphene-based materials, in particular graphene oxide, is biomedicine. Due to the wide variety of functional groups and the possibility of chemical modification of graphene oxide, the creation of composite materials for biomedical use is promising. These nanomaterials have a unique structure and properties, which determines their use for creating targeted drug delivery systems, in tissue engineering, bioimaging, as well as for creating new materials with antimicrobial and antiviral properties.

The objective was to perform synthesis and identification of graphene oxide and its conjugate with glycine, and to study the biocompatibility of the obtained nanomaterials: the effect on haemolysis and platelet aggregation, genotoxicity and cytotoxicity.

Methods and materials. Graphene oxide was synthesized from graphite using the modified Hummers and Offeman method, after which the graphene oxide-glycine conjugate was also obtained. Identification was carried out using nuclear magnetic resonance spectroscopy. Estimation of biocompatibility of the obtained nanomaterials included the study of their hemolytic activity, effect on collagen-induced platelet aggregation, cyto- and genotoxicity.

Results. Graphene oxide and its conjugate with glycine were synthesized. Identification with using nuclear magnetic resonance spectroscopy confirmed the structure and composition of the substances. The study of the biocompatibility of the obtained nanomaterials showed the absence of hemolytic activity (the degree of hemolysis did not exceed 2.5% at the studied concentration range); the presence of antiplatelet properties (at C=10–100 mg·ml–1); the absence of geno- and cytotoxicity (graphene oxide at C=0.25–25 mg·L–1 does not affect the viability of HEK293 cells; in turn, the conjugate with glycine at C=100–200 mg·L–1 causes a dose-dependent increase proliferation of HEK293 cells).

Conclusion. The study demonstrates that functionalization of the graphene surface with oxygen-containing groups and amino acids leads to increased hemocompatibility, as well as to the production of nanomaterials that do not exhibit genoand cytotoxicity.

The objective was to assess the prognostic value of D-dimer level in peripheral venous blood and arterial blood to the risk of developing complications in the short-term period after open reconstructive surgery on the aortoiliac segment.

Methods and materials. The study included 89 patients who were determined the D-dimer level in peripheral venous blood, as well as arterial blood intraoperatively.

Results. Statistically significant differences in the D-dimer level were established depending on the presence or absence of early postoperative complications.

Conclusions. The intraoperative D-dimer level in arterial blood has a predictive ability in relation to the development of early postoperative complications.

Relevance. Endometriosis is a multifactorial gynecological disease characterized by a benign proliferation of endometrial cells outside the uterine cavity. At the present stage of the study of endometriosis, the etiology and pathogenesis of its development have not been studied enough. More and more attention is paid to the emotional and personal characteristics of patients, and the disease itself is gradually moving into the category of psychosomatic disorders.

The objective was to identify the features of the perception of pain syndrome, as well as emotional, personal characteristics and the level of adaptation of women with endometriosis.

Methods and materials. The study involved 76 respondents: 46 women with endometriosis and 30 women without gynecological pathology (conditionally). We used psychodiagnostic questionnaire methods aimed at studying the perception of pain syndrome, emotional sphere, level of adaptation, personal characteristics and gender identity.

Results. The personal profile of women with endometriosis is dominated by such traits as: anxiety, depression, difficulties in controlling life events, a decrease in the level of socio-psychological adaptation and satisfaction with the quality of life, a tendency to escape from reality in comparison with the personal profile of conditionally healthy women. It has been established that a higher assessment of the severity of pain syndrome in endometriosis is interconnected with such types of interpersonal interaction as «dependent-obedient» and «cooperating-conventional».

Conclusions. The treatment and rehabilitation of patients with endometriosis requires taking into account their psychological characteristics, as well as a multidisciplinary approach involving specialists of various profiles, including psychologists/ psychotherapists.

Introduction. In modern surgery, there are many types of different energy used to achieve hemostasis; one of them is the energy of argon plasma coagulation. However, the impact of energy affects not only the bleeding site; it also affects the stitches lying nearby the source of bleeding. The instructions for the use of a suture material or a coagulation tool do not describe the changes that may occur when they interact. A review of the literature found a small number of publications devoted to changes in the physical properties of suture material when exposed to it. This information is not sufficient to predict the effects of argon plasma coagulation energy on the suture material and, as a result, on wound healing or the quality of the postoperative scar.

The objective was to determine changes in the biodestructive properties of synthetic absorbable suture materials with argon plasma coagulation in an in vivo experiment.

Methods and materials. In the experimental study, the results of biodegradation of monofilament and polyfilament sutures after exposure to argon plasma coagulation energy were analyzed in comparison with control samples in the body of laboratory mice.

Results. It can be unequivocally stated that the effect of argon plasma coagulation energy has an effect on the rate of biodegradation of both monofilament and polyfilament synthetic filaments implanted in muscle tissue.

Conclusions. Suture material exposed to argon plasma coagulation may not meet the terms of partial or full biodegradation stated by the manufacturer, which may affect the quality of scar formation.

Transient global amnesia (TGA) is characterized by a sudden onset of total memory dysfunction, and loss of the ability to memorize information, followed by anterograde, and sometimes, retrograde amnesia, and reproduction of current events with patient’s consciousness alert, accompanied by one’s repetitive questioning during this very episode that lasts less than 24 hours (usually 1-8 hours). The process involves mesial temporal lobes and hippocampi. Pathogenesis of TGA includes venous congestion with Valsalva-like activities, other vascular dysfunction, and migraine. The article contains literature review on the development of TGA in patients with Multiple Sclerosis and Cerebral Autosomal Dominant Arteriopathy and Subcortical Infarcts and Leukoencephalopathy (CADASIL), which is not common for such patients, and describes a rare clinical case of confirmed CADASIL, in whom first acute vascular ischemic attack presented by TGA developed. In this patient, CADASIL was diagnosed earlier, and was based on the presence of migraine in anamnesis, common for CADASIL patients MRI abnormalities, and the result of molecular-genetic analysis, which showed gene NOTCH3 heterozygous mutation: р.207 R>R/C. Neurological examination revealed no focal neurological signs. Brain MRI in diffusion option (DWI) revealed a small pinpoint ischemic focus in left hyppocampus, which is characteristic for TGA. Despite of frequent review of migraine and subcortical ischemic events in these patients, the history of TGA is solely reported in literature. Reports of TGA development in patients with multiple sclerosis are also sole.

Currently, in medical genetics, there is a significant gap between real medical care and scientific achievements in the field of molecular biological technologies. The diagnosis of hereditary pathology is made infrequently, and genetic knowledge is slowly entering medical practice. Most patients with hereditary disorders are under completely different diagnoses and are treated by specialists according to the principle of the leading clinical symptom, such as, for example, mental retardation, skeletal deformities, ocular pathology, hearing loss, atrophic, ichthyosis-like or psoriasiform skin changes, etc. The clinic of hereditary diseases is often similar to well-known and frequently occurring diseases, since there is a phenotypic similarity of genetically heterogeneous diseases. Misdiagnosis leads to pathogenetically unjustified treatment. In our work, we described a clinical case of progeroid syndrome that confirmed by cytogenetic diagnostics based on the Pavlov University (Saint Petersburg, Russia). The patient has been observed with various dermatological syndromes for 26 years. With a multidisciplinary approach to the verification of hereditary disease, dermatovenerologists and geneticists were able to define the hereditary nature of the skin lesion in the patient and confirm her progeroid syndrome.