FIELD: medicine.
SUBSTANCE: method for determining the subpopulation composition of skin cells and obtaining the skin cytoimmunogram comprises sampling a skin biopsy specimen to a depth of 2 mm, homogenizing the tissue in a 0.9% aqueous solution of sodium chloride at a temperature of +23…+25°C, extracting the homogenate, filtering the homogenate through an inert filtering partition with a pore diametre of 20 mcm, centrifuging the homogenate at 400 g for 5 minutes at a temperature +23…+25°C. After centrifugation, the viability of the skin cells is determined, the skin cells are incubated for 20 minutes with monoclonal antibodies fluorochrome-labeled for flow cytometry, phenotyping of the skin cells is carried out, the number of skin cells of a specific phenotype - skin cytoimmunogram - are determined: keratinocytes CD49f+, among them activated CD49f+HLA-DR+; fibroblasts (fibrocytes) CD45-CD14-CD44+, among them activated CD45-CD14-CD44+CD80+; mast cells CD249+, among them activated CD249+CD63+; monocytes (macrophages) CD45+CD14+, among them activated CD45+CD14+HLA-DR+; intra-epidermal macrophages CD207+, among them activated CD207+CD80+, CD207+HLA-DR+, CD207+CD80+HLA-DR+; endothelial cells CD146+, among them activated CD146+CD34+, CD146+HLA-DR+, CD146+CD54+, CD146+CD54+HLA-DR+; lymphocyte populations: T-lymphocytes CD45+CD3+, T-helpers CD45+CD3+CD4+CD8-, T-suppressors CD45+CD3+CD4-CD8+, B-lymphocytes CD45+CD3-CD19+, NK-lymphocytes CD45+CD3-CD16+CD56+.
EFFECT: application of this method allows to make a quantitative and functional characteristic of all the skin constituent elements for use in diagnosis.
Skin and venereal diseases are among the oldest diseases of mankind that have accompanied humans at all stages of evolution. It is worth noting that the oldest example of medical literature, namely a clay tablet with a Sumerian text found in Nippur (in modern Iraq), tells about the treatment of skin diseases. After tens of thousands of years, I want to talk and write about skin and venereal diseases.
The Himba tribe is one of the most colorful and unique peoples of Africa, living in northern Namibia, in the Kunene region, near the border with Angola. It is a mistake to assume that these people are wild. Many Himba have dual citizenship - Himba and Namibia (not many of us can boast passports from two countries :)), but they do not fully recognize Western laws. Their culture, way of life and appearance have remained virtually unchanged for centuries despite globalization. It is understandable that young people leave for the cities, but they also often return to their roots. And why? Let's try to figure it out together...
I want to take a breath – we have done it! The expedition Live Parallel 2013 – Papua New Guinea where we walked many kilometers through the jungle, spent tens of kilometers inside the tarantas and hundreds of kilometers on board small planes flying on the same principle as a route-taxi, has come to an end without loss and above all with the result! But it could be otherwise… Well, let us not talk about sad things but about interesting ones, so… Jakarta was the first place to see.
Taking into account the universality of the pathogenesis of the wound process and the existence of substances predictably affecting the nature of the immune response in the skin and certain functions of its constituent cells (including reparative), the development of a new biotechnological agent for healing skin wounds of different etiology is justified and relevant.
This determined the aim and objectives of this study. Read more...
