Publications by authors named "Alexander Girich"

Traumatic brain injuries (TBI) of varying severity are becoming more frequent all over the world. The process of neuroinflammation, in which macrophages and microglia are key players, underlies all types of brain damage. The present study focuses on evaluating the therapeutic potential of N-docosahexaenoylethanolamine (DHEA, synaptamide), which is an endogenous metabolite of docosahexaenoic acid in traumatic brain injury.

View Article and Find Full Text PDF

The secreted frizzled-related proteins (sfrp) and smoothened (smo) genes and their possible role in the regeneration of internal organs in the holothurian Eupentacta fraudatrix were studied. In this species, two sfrp genes were identified: sfrp1/2/5, sfrp3/4 and one smo gene. Their expression was analysed during regeneration of the aquapharyngeal bulb (AB) and intestine, and these genes were knock down by RNA interference.

View Article and Find Full Text PDF

Mesodermal cells of holothurian can transdifferentiate into enterocytes during the regeneration of the digestive system. In this study, we investigated the expression of several genes involved in gut regeneration in Moreover, the localization of progenitor cells of coelomocytes, juvenile cells, and their participation in the formation of the luminal epithelium of the digestive tube were studied. It was shown that Piwi-positive cells were not involved in the formation of the luminal epithelium of the digestive tube.

View Article and Find Full Text PDF

The holothurian Eupentacta fraudatrix is a unique organism for studying regeneration mechanisms. Moreover, E. fraudatrix can quickly restore parts of its body and entire organ systems, yet at the moment, there is no data on the participation of stem cells in the process.

View Article and Find Full Text PDF

The transcriptome of the holothurian Apostichopus japonicus was sequenced at four developmental stages-blastula, gastrula, auricularia, pentactula-on an Illumina sequencer. Based on our RNA-seq data and the paired-end reads from 16 libraries obtained by other researchers earlier, we have achieved the currently most complete transcriptome assembly for A. japonicus with the best basic statistical parameters.

View Article and Find Full Text PDF

Several genes of the Wnt and Frizzled families in the holothurian Eupentacta fraudatrix are characterized, and the complete coding sequences of wntA, wnt4, wnt6, wnt16, frizzled1/2/7, frizzled4, and frizzled5/8 are obtained. The dynamics of expression of these genes during regeneration of internal organs after evisceration are studied. Evisceration and the associated damages supposedly induce the expression of wnt16 on third day after evisceration.

View Article and Find Full Text PDF