Клинико-генетические характеристики ранней эпилептической энцефалопатии 66‑го типа (обзор литературы и собственное наблюдение)

Early epileptic encephalopathy-66 was first diagnosed in a male patient from Russia using whole-exome sequencing. Early epileptic encephalopathy- 66 is a unique disorder in the group of early epileptic encephalopathies. The same recurrent heterozygous variant of the nucleotide sequence was found in all known patients, but the severity of seizures and dysmorphic signs significantly vary between patients. The current study of a recurrent pathogenic variant in PACS2 gene expands the phenotype spectrum of early epileptic encephalopathy-66 and will improve the management of patients with that disorder in Russia in the future.Представлено первое описание клинико-генетических характеристик российского больного с ранней эпилептической энцефалопатией 66‑го типа. С помощью полноэкзомного секвенирования обнаружена ранее описанная гетерозиготная мутация NM_001100913.2: c.625G>A (p.Glu209Lys) в гене PACS2. Данное моногенное заболевание является уникальным в группе ранних эпилептических энцефалопатий – у всех пациентов обнаруживается одинаковый патогенный вариант нуклеотидной последовательности, но клинические проявления отличаются по степени тяжести и выраженности дизморфических признаков, что пред- положительно обусловлено разным генетическим фоном. Клиническое изучение серий случаев рекуррентных патогенных вариантов позволяет оптимизировать тактику ведения новых пациентов при обнаружении уже известного генетического варианта

The role of electronic and ionic conductivities in the rate performance of tunnel structured manganese oxides in Li-ion batteries

Single nanowires of two manganese oxide polymorphs (α-MnO2 and todorokite manganese oxide), which display a controlled size variation in terms of their square structural tunnels, were isolated onto nanofabricated platforms using dielectrophoresis. This platform allowed for the measurement of the electronic conductivity of these manganese oxides, which was found to be higher in α-MnO2 as compared to that of the todorokite phase by a factor of ∼46. Despite this observation of substantially higher electronic conductivity in α-MnO2, the todorokite manganese oxide exhibited better electrochemical rate performance as a Li-ion battery cathode. The relationship between this electrochemical performance, the electronic conductivities of the manganese oxides, and their reported ionic conductivities is discussed for the first time, clearly revealing that the rate performance of these materials is limited by their Li+ diffusivity, and not by their electronic conductivity. This result reveals important new insights relevant for improving the power density of manganese oxides, which have shown promise as a low-cost, abundant, and safe alternative for next-generation cathode materials. Furthermore, the presented experimental approach is suitable for assessing a broader family of one-dimensional electrode active materials (in terms of their electronic and ionic conductivities) for both Li-ion batteries and for electrochemical systems utilizing charge-carrying ions beyond Li+

DRUG «GEOSCAPE» PRODUCED BY «B-MIN» (RUSSIA) AND ITS MONOCOMPONENTS ON THE MODEL OF EXPERIMENTAL FORMALIN ARTHRITIS IN RATS

The article presents the results of studying of specific activity of the combined drug «Geoscape» on the model of experimental formalin arthritis of the knee joint in rats. The aim of the study was the comparative analysis of the benefits of the combined composition on monocomponents (meloxicam, dexamethasone, Echinacea dry extract). Was installed high efficiency antipyretic and anti-inflammatory action «Geoscape» compared to the individual drug components. Macroscopic and histological analysis revealed a beneficial effect of the investigated tools to components of the joint