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onalize their lifestyle and treatment goals.
Shorter telomeres are associated with more pronounced disorders of carbohydrate metabolism and a higher degree of insulin resistance. Further studies of metabolic status are necessary to personalize their lifestyle and treatment goals.About 5-10% of malignant neoplasms (MN) are hereditary. Carriers of mutations associated with hereditary tumor syndromes (HTS) are at high risk of developing tumors in childhood and young age and synchronous and metachronous multiple tumors. At the same time, this group of diseases remains mainly an oncological problem, and clinical decisions are made only when MNs are detected in carriers of pathogenic mutations.Individual recommendations for cancer screening, treatment, and prevention should be developed for carriers of mutations associated with HTS to prevent an adverse outcome of the disease. It is essential to identify patients at risk by doctors of all specialties for further referral to medical and genetic counseling with molecular genetic testing (in case of indications). The problems of standardization of enrollment criteria for genetic tests, further tactics of prevention, screening, and treatment of many hereditary oncological diseases remain unsolved.This review was created to inform doctors of various specialties, including endocrinologists, about the HTS. This allows them to get acquainted with main clinical features of specific syndromes, helps to understand the difference between hereditary and non-hereditary cancer, recognize signs of hereditary cancer, and introduce the indications for genetic examination and genetic counseling of the patient. Also, significant differences between international and domestic recommendations on screening measures, diagnosis, and treatment of HTS underline the need to review the existing and develop new algorithms for medical support of patients with HTS.
Аutoimmune polyglandular syndrome (APS) it is characterized by damage to two or more endocrine glands, which eventually results in the hormonal failure. Some clinical studies describe the development of myocardial lesion in the setting of combined autoimmune endocrine pathology. In Russia the myocardial condition in adult patients with APS types 2 and 3 was examined for the first time.

To evaluate the structure and functional state of the myocardium according to magnetic resonance imaging (MRI), to analyze changes in the spectrum of specific antiheart autoantibodies and markers of heart lesion in patients with APS types 2 and 3.

50 patients with APS types 2, 3 were studied. 45 of them were performed with delayed contrast heart MRI. All 50 patients were tested for IgG antibodies to heart muscle antigens by indirect enzymatic immunoassay (EIA), for troponin I and natriuretic peptide by chemiluminescence immunoassay (CLIA), for creatine phosphokinase (CPK) by NAC (N - acetyl-L-cysteine), and for C-reactiveas not confirmed in most of the examined patients, the indicants of «damage» to the myocardium (troponin 1 and NT-proBNP) did not deviate from the reference range.
We obtained MRI data indicating functional changes in the myocardium in patients with APS types 2 and 3. The autoimmune cause of these changes according to the results of determining of antiheart antibodies was not confirmed in most of the examined patients, the indicants of «damage» to the myocardium (troponin 1 and NT-proBNP) did not deviate from the reference range.Genes of HLA system (Human Leukocyte Antigen) play an essential role in the normal functioning of the immune system. There are three classes of genes I, II, and III. The function of HLA molecules class I is to present antigens of peptides from the cytoplasm to T-lymphocytes on the cell surface, and class II - to present antigens of peptides from the extracellular space. In the classical view, the pathological activation of the immune system in patients with a genetic predisposition can result in the development of autoimmune diseases. However, the influence of this system on the development of non-autoimmune diseases, their severity and prognosis, has been recently considered. Suzetrigine Besides, HLA molecules provide a presentation of various infectious agents. In this connection, the loci of the main histocompatibility complex can be considered candidates for determining the genetic predisposition to infectious diseases themselves and their course. This review hypothesizes that specific variants of HLA genes may cause the formation of a «cytokine storm» in patients with COVID-19. Identification of a group of patients with particular genetic variations that cause violation of immune tolerance and hyperresponse in the setting of viral infection will help to optimize the algorithm for disease prevention and treatment of such patients and, as a result, to reduce the severity of the epidemiological situation.The World Health Organization has declared this century to be the century of autoimmune diseases. These include a whole spectrum of endocrine disorders, with type 1 diabetes mellitus, thyropathies, autoimmune polyglandular syndromes (APS), adrenal insufficiency and others, are among the most severe chronic non-infectious diseases in humans. Both the etiology and pathogenesis of autoimmune endocrinopathies are being actively studied, the concepts of the manifestation and progression of these diseases have already been formed, data on the genetic predisposition to one or another autoimmune damage to the endocrine system organs have been obtained, prenatal diagnosis of APD is being actively developed and introduced, attempts are being made to edit the genome in order to prevent their development. Despite this, there are still enough «white spots» in understanding the processes of induction and implementation of the mechanisms of autoimmunity in a particular person. The close connection of the immune and endocrine systems is obvious. The key question is what is still primary, a genetic predisposition to «breakdown» of the immune system, leading to the development of an autoimmune endocrine disease, or some external influence that can cause direct damage to the endocrine organ (up to its destruction), leading in the end to the breakdown of immune tolerance and the launch of a cascade of autoimmune processes that aggravate an endocrine disorder? Modern advances not only in endocrinology, but also in immunology, molecular genetics, cell biology, etc. are absolutely necessary to clarify the relationship of immuno-inflammatory, hormonal and metabolic disorders in the pathogenesis of endocrine diseases at the cellular and molecular level and to develop new methods of prevention, early diagnosis, predicting the course and effectiveness of therapy for autoimmune endocrinopathies.
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