Conference proceedings. Рубрика в журнале - Cardiometry
Sonodynamic therapy (SDT) and gene therapy
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One in Four Deaths in Japan Caused by Cancer. Cancer is the most common cause of death for Japanese people who are 40 and over, while suicide is the leading cause among young people. In 2020, 378,356 people died of cancer in Japan, according to a Ministry of Health, Labor, and Welfare report. This accounts for 27.6% of all deaths that year and equates to one in four people dying of cancer. The death rate for cancer-the number of deaths per 100,000 people-has been rising steadily and in 2020 reached 307.0. For men, the type of cancer with the highest death rate at 88.8 was lung cancer (53,244 deaths), followed by stomach cancer (27,769), and colorectal cancer (27,715). For women, the most common type with a death rate of 38.0 was colorectal cancer (24,069) and then lung cancer (22,337).
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Stress in pathogenesis of development of tumor pathology of the thyroid gland
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Our experience in the endocrine surgery at our clinics institution has shown a relationship between the appearance of nodules in the thyroid gland and a long-term exposure to stress. At present, the complicated geopolitical circumstances play a role of an active stressor, and until recently, it was also the COVID-19 pandemic, which caused a change in lifestyle, heavy material losses, and loss of loved ones. Oncogenic activity of cells is reflected in an imbalance of markers of proliferation and apoptosis. Many researchers associate thyroid pathology with molecular alterations as diagnostic markers
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Depending on the individual resistance to hypoxia, many cell-adaptive reactions are formed, but the mechanisms of their occurrence are still not clear. Hypoxia is associated with many biological processes, including pathogenic microbial infection, cancer, acute and chronic diseases, and more other. Hypoxia-inducible factors (HIFs) regulate the expression of a number of genes involved in cellular metabolism, cell growth/death, cell proliferation, glycolysis, immune response, tumorigenesis, and metastasis. The brain and the heart are the organs most sensitive to oxygen deficiency, and their mitochondria, as the primary consumers of cellular oxygen, help tune cellular and organismal responses to hypoxia through structural or functional modifications. To date, there have been no comparative studies of the ultrastructural features of brain and cardiac mitochondria in animals demonstrating different tolerance types to oxygen deficiency: low-resistance (LR) and high resistance (HR) to hypoxia, which influence the general resistance of the body to oxygen deficiency.
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It is known about numerous regulatory disorders in the body during the development of a malignant process. However, in this case, the natural mechanisms of the anti-tumor resistance remain poorly understood. The concepts on the systemic processes during the development of general nonspecific adaptational reactions of the body (AR): stress and anti-stress ARs, discovered by G. Selye and Russian scientists L.Kh. Garkavi, E.B. Kvakina and M.A. Ukolova, have contributed to the development of effective technologies for preventive and complementary therapy for the purposes of clinical oncology
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Over the past decade, the use of adoptive immunotherapy has emerged as a promising approach to treatment of various malignancies, including breast cancer. Cytokines are involved in the development, differentiation and homeostasis of the T cells. Despite the similarities in signaling pathways, the γc cytokines shape the T cell responses differently: IL-2 plays a major role in the development and maintenance of the regulatory T cells, while IL- 15 stimulates the proliferation and cytotoxic functions of the CD8+ T cells and NK- cells that leads to an enhanced antitumor response. It is of interest to study the combined effect of these cytokines in an experiment.
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Melanoma is the most aggressive of the common forms of skin cancer. Proinflammatory cytokines produced by the tumor and delivered via the circulatory and lymphatic systems can lead to damage to the structures of the central nervous system. Damage to the blood-brain barrier and the endothelium of blood capillaries can cause dysfunction of neurons in the cerebral cortex, induce changes in neural plasticity, cognitive functions and result in the development of depression. Depression is observed in 20% of the cancer patients, and it affects quality of life, treatment effectiveness and survival. Depression has been linked to damage to the prefrontal cortex, which plays an important role in many brain functions, including cognition, emotion regulation, motivation and sociability.
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All human health, from the cellular level to overall well-being, is inextricably linked to the health of our mitochondria. This article delves into the concept of mitochondrial training, focusing on Hypoxic Intermittent Training (HIT) as a central method for improving mitochondrial function. It is becoming increasingly clear that various diseases, stress, shock, inflammation, aging, and organ failure are primarily the result of respiratory problems that directly affect mitochondrial health. The regulation of metabolism is closely related to gas exchange, and the composition of the gases we breathe regulates our metabolism. Our main goal is to promote efficient mitochondrial function, a key biological imperative
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Three-dimensional in vitro models for studying the chemosensitivity of breast cancer cells
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Scientists agree that three-dimensional tumor cell cultures reflect the in vitro biological features of malignant tumors to a greater extent than it is the case with the conventional monolayer cultures. In particular, the results of assessing the effectiveness of anticancer drugs obtained in three-dimensional cell models are considered as more accurate and consistent with the tumor response in vivo, where sensitivity is usually lower than that found in the in vitro experiments. Some of the most developed cellular models are structures obtained using three-dimensional bioprinting, which include not only malignant cells, but also biogels to imitate the chemical and mechanical properties of the extracellular matrix of the tumor.
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Background. The concept that the key mechanism of the tumor process is the disruption of adhesive interactions is based on the participation of local, general and central mechanisms.
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The effectiveness of chemoradiation therapy (CRT) is conventionally assessed in terms of achieving clinical complete response (CCR), overall and event-free survival. Anal cancer (AR) is considered as one of the cancer diseases with a proven etiological agent: the human papillomavirus (HPV). The search for biomarkers to predict the effectiveness of CRT is always relevant, and an assessment of virological response (VR) may be useful for this purpose.
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