Levels of chemokines and other inflammatory mediators in patients with mild cognitive impairment undergoing rehabilitation

Alzheimer's disease is the most common neurodegenerative disease in old age. In some cases, it is preceded by mild cognitive impairment (MCI). One of the important components in the pathogenesis of neurodegeneration is chronic neuroinflammation (inflammatory activation of microglia and astrocytes in the brain). Systemic inflammatory response and immune dysregulation may contribute to neuroinflammation. The purpose of this study was to investigate the level of chemokines and other inflammatory mediators in patients with MCI who underwent medical rehabilitation, and to study its associations with the severity of cognitive impairment. The study group included 48 patients with MCI undergoing rehabilitation. Rehabilitation included cognitive therapy, psychotherapy and tasks for unaided performance. Repeated examination was conducted 6 months after the completion of rehabilitation. The control group included 46 healthy volunteers. Multiplex assay was used to determine serum cytokine and chemokine concentrations. Student's t-test was used to assess the significance of differences. Assessment of cognitive functions was performed using international neuropsychological scales. In patients with MCI, we have found an increase in the levels of several cytokines and chemokines (TNFα, CXCL10/IP10, MDC) that regulate systemic inflammation, cellular and humoral mechanisms of adaptive immunity. After the rehabilitation course their levels returned to normal. It was also found that decrease in CCL7 level in the patients before the rehabilitation course is associated with the severity of cognitive impairment. The findings contribute to understanding the role of chemokines in the pathogenesis of MCI, and indicate that their levels can be potential biomarkers of the severity of cognitive impairment. For translation of the findings into clinical practice, their validation in larger studies is needed, as well as assessing the associations between chemokine levels and the severity of cognitive impairment in MCI over long-term follow-up

Особенности получения биодизеля первого поколения в аппарате с вихревым слоем

The possibility of intensifying the process of transesterification of triglycerides of carboxylic acids of vegetable oils with alcohols C1-C3 in the presence of potassium hydroxide in an apparatus with a vortex sheet is shown. Analysis of the composition of mixtures of methyl esters of carboxylic acids of sunflower oil showed that the redistribution of hydrogen and the destructive transformation in the system take place along with the transesterification reactions. This results in the expenditure of octadecyl acid ether.Показана возможность интенсификации процесса переэтерификации триглицеридов карбоновых кислот растительных масел спиртами С1-С3 в присутствии гидроксида калия в аппарате с вихревым слоем. Анализ состава смесей метиловых эфиров карбоновых кислот подсолнечного масла показал, что наряду с переэтерификацией в системе протекают реакции перераспределения водорода и деструктивные превращения, приводящие к исчезновению в биодизеле метилового эфира октадеценовой кислоты

The features of producing the first generation biodiesel in an apparatus with a vortex sheet

The possibility of intensifying the process of transesterification of triglycerides of carboxylic acids of vegetable oils with alcohols C1-C3 in the presence of potassium hydroxide in an apparatus with a vortex sheet is shown. Analysis of the composition of mixtures of methyl esters of carboxylic acids of sunflower oil showed that the redistribution of hydrogen and the destructive transformation in the system take place along with the transesterification reactions. This results in the expenditure of octadecyl acid ether

Erosion processes on the hydraulic-mine dump "Beryozovy log" KMA and how to struggle against them

Рассматриваются процессы ветровой и водной эрозии, протекающие на гидроотвале во время его формирования и проведения горнотехнической и биологической рекультивации. Качественная, своевременная и комплексная рекультивация гидроотвала позволяет устранить один из опаснейших в районе КМА очагов эрозии и рационально использовать его в народном хозяйстве.The proccesses of wind and hydro erosion on the hydraulic-mine dump during its formation and realization of mining and biological recultivation are considered. Positive and negative aspects of the recultivation regarding erosion processes are noted. Qualitative, timely and integrated recultivation of the hydraulic-mine dump makes it possible to eliminate one of the most dangerous centres of erosion in the KMA region and use it rationally in the national economy