Cyanoarylporphyrazine dyes: multimodal compounds for personalised photodynamic therapy.

Photodynamic therapy is known as an effective primary and adjuvant anticancer treatment. Compounds with improved properties or additional modalities are still needed to create an 'ideal' photosensitizer. In this article, we review cyanoarylporphyrazine dyes for photodynamic (anticancer) therapy that we have synthesised to date.

Comparative Analysis of Tetra(2-naphthyl)tetracyano-porphyrazine and Its Iron Complex as Photosensitizers for Anticancer Photodynamic Therapy.

Photodynamic therapy (PDT) is a rapidly developing modality of primary and adjuvant anticancer treatment. The main trends today are the search for new effective photodynamic agents and the creation of targeted delivery systems with the function of controlling the release of the agent in the tumor. Recently, the new group of cyanoarylporphyrazine dyes was reported, which combine the properties of photosensitizers and sensors of the local microenvironment.

SURGICAL METHODS OF TREATMENT OF END-STAGE HEART FAILURE.

The aim of the study is to establish the effectiveness of mechanical support of blood circulation of patients with end-stage heart failure depending on the method of surgical correction. The results of the study are based on the data of examination and dynamic observation of 73 patients (median age 44 (16-69) years, men 68 patients, women 5 patients) who were treated from 2008-2019 іn the following medical institutions: Republican Scientific and Practical Center «Cardiology», Minsk, Republic of Belarus; in the Center of Cardiac Surgery on the Basis of KL «Feofania» DUS. Patients were examined during the initial examination, after 3 months and after a year.

[Changes in structural and functional plasticity of the brain induced by environmental enrichment].

The review contains current data on structural and functional brain plasticity mechanisms under the enriched environment. Enriched environment contains social and non-social stimuli acting on different aspects of the development and functioning of the brain. Special attention is devoted to the modeling of enriched environment in the experiment.

[Congenital cystic adenomatoid pulmonary malformation and cancer of lung. Molecular-genetic and immunohistochemical investigation of p53 gene, a regulator of cellular cycle].

The loss of heterozygosity by p53 gene and the expression of p53 protein have been studied in cancerous pulmonary tissues and congenital cystic adenomatoid malformation by molecular-biologic and immunohistochemial methods. The loss of heterozygosity by p53 gene is confirmation of precocious molecular damage in epithelium of cystic adenomatoid pulmonary malformation.

[Highly sensitive systems for experimental insertional mutagenesis in repair-deficient genetic environment in Drosophila melanogaster: new opportunities for studying postreplication repair of double-stranded DNA breaks and mechanisms of transposable element migration].

Spontaneous mutations in Drosophila melanogaster are related mainly to transposable elements (TEs). They are caused by both migration of TEs over the genome (transpositions) and the ability of TEs to induce chromosomal mutations. Migration of DNA transposons is accompanied by formation of double-strand DNA breaks (DSBs), which are repaired by host repair systems encoded by genes for recombination repair.

[Diversity of mechanisms and functions of enzyme systems of DNA repair in Drosophila melanogaster].

The review presents a description and comparative analysis of the known enzymatic systems of DNA repair in Drosophila melanogaster. Data on protein products, mechanisms of action, and the involvement of the repair system elements in other cellular processes are summarized.

[Subdivision of certain morphological variants of chronic glomerulonephritis].

Modern methods allow to detail morphological classification of chronic glomerulonephritis, to adapt it to the clinical classification and to recommend it for practical use. This specification concerns minimal changes and a group of mesangial chronic glomerulonephritis. The term "minimal changes" is a light-microscopic definition and covers rather a heterogeneous group of diseases or their initial manifestations.

[Clinico-morphologic heterogeneity of minimal changes in glomerulonephritis].

60 kidney biopsies from patients with minimal changes were investigated by light-, electron- and immunofluorescent microscopy. The clinical picture in 41 patients was nephrotic syndrome; 10, 6 and 3 patients had mixed, hematuric and latent forms, respectively. In 45 of 60 biopsies focal or diffuse deposits of immune complexes in basal membrane and glomerular mesangium were found.