Распространенность маркеров хронической болезни почек у пациентов с артериальной гипертонией: результаты эпидемиологического исследования ХРОНОГРАФ Ключевые слова: артериальная гипертония, сахарный диабет, хроническая болезнь почек, скорость клубочковой фильтрации, альбуминурия.

Peptide toxins of arthropods are one of the potential sources of bioactive substances. Toxins are able to bind to calcium channels and block them. Ca 2+ ions play an important role in many cell processes, in particular, in apoptosis. In this work, we study the effect of some arthropod toxins on intracellular processes associated with the induction of apoptosis. Synthetic analogs of U 5-scytotoxin-Sth1a, ω-hexatoxin-Hv1a, ω-theraphotoxin-Hhn2a, and μ-agatoxin-Aa1a toxins-inhibitors of calcium L, P, and Q channels and sodium channels were used in the study. Apoptosis was induced by AC-1001 H3 peptide. We study the effect of toxins on the level of apoptosis, ROS, mitochondrial potential, GSH, and ATP in CHO-K1 cells. We show that all the tested toxins are able to dose dependently block the induction of apoptosis triggered by AC-1001 H3 and reduce the level of natural apoptosis in CHO-K1 cells. Cell incubation with apoptosis inducer AC-1001 H3 in the presence and absence of toxins causes an increase in the intracellular concentrations of ROS, ATP, and mitochondrial potential and decreases the GSH concentration. The present study reveals the antiapoptotic effect of a number of arthropod peptide toxins. The toxins studied can represent a novel approach used in the treatment of pathologies associated with the activation of apoptotic mechanisms.

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Langerhans cell histiocytosis is a rare disease characterized by various clinical patterns: from isolated lung lesions to severe involvement of other organs. This clinical case demonstrates a rare combination of pulmonary Langerhans cell histiocytosis and Guillain—Barre syndrome due to possible common mechanisms of the disease development mediated by the CD1A expression.

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