[ADULTS NEUROGENESIS AS A RESERVE FOR HEALTH PRESERVATION].

The article presents scientific evidence that new neurons from progenitor cells throughout life in almost all animals with a nervous system are an integral component of neuronal ontogenesis and plasticity.It has been shown that there are neural stem cells in the brain that give rise to adult neurogenesis, occurring primarily in the dentate gyrus, a subregion of the hippocampus important for learning, memory, and emotion. With age, there is a decrease in adult neurogenesis, which is associated with a decrease in cognitive functions. Newly formed neurons and «immature¼ neurons together constitute a potential reservoir of young cells («brain reserve¼) that can be used to prevent aging and/or delay the onset/reduce the impact of neurological disorders.The possibility of using neurogenic processes for therapeutic purposes to reduce pain and improve the quality of life of patients is implied.

[THE ISSUE OF THE IMPACT OF RADIOACTIVE SUBSTANCES ON PUBLIC HEALTH AND COUNTERMEASURES FOR RADIATION EXPOSURE AS A GLOBAL PROBLEM].

The widespread use in today's world of radioactive sources d in energy, medicine, engineering and construction, for contaminant tracking and food sterilization increases the likelihood of accidental exposure. The use of ionizing radiation and radioactive elements can directly or indirectly cause life-threatening complications, such as oncopathology, radiation burns, and impaired immunity. Pollution of the environment with radioactive elements and depletion of the ozone layer also contribute to an increase in the level of radiation exposure. To protect the health of the population living in contaminated areas and consuming locally produced products, it is necessary to organize a system for monitoring radioactive damage, as well as special anti-radiation protective measures in the field of agriculture and forestry, hunting and fishing, and providing the population with food. The purpose of the study is to analyze modern scientific data on the effect of ionizing radiation on reproductive function and modern approaches aimed at correcting its violations. Bibliographic, information-analytical methods and methods of comparative analysis were used.

[Multifocal brain lesions]. / Mnogoochagovye porazheniya golovnogo mozga.

Despite the current laboratory and instrumental approaches to the diagnosis, a patient with multiple brain lesions remains a difficult one. The reason is that these lesions can be caused by a variety of disorders, including rare ones and atypical forms. Distinguishing neoplastic lesions from non-neoplastic CNS disorders is crucial due to different treatment options. The authors report the case of a patient with multiple brain lesions, present a literature review of diseases to be differentially diagnosed with multifocal brain lesions and suggest a simple algorithm for the differential diagnosis. Timely clinical evaluation and a multidisciplinary approach are required for making a definitive diagnosis that is extremely important to start the appropriate therapy.