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.
Later we may ask ourselves where we are going and why. This thought came to my mind under the sign “CANNIBALISM POLICE”… But it was too late, we had to go farther consoling ourselves with the thought that we were among the very few people in the whole world who had made some steps forward from the sign. Read more...
Looking into the eyes of this female leader of the Korowai tribe who are still considered to be cannibals, one may think there will be a more vivid experience during our life but the state of shock is still holding us hard! Read more…
All my life, it seemed to me that answers make a person's thinking bigger and at the same time sharper. But over time, I realized that answers are born only where they are preceded by good questions. Not to the textbook or to the authority, but to reality itself — to what we see, but often do not notice. It is often said that human life is short. I am becoming more and more convinced that it can be "lengthened" — not by the number of years I have lived, but by the density of observations. In more detail...
or immediately into the telegram channel from observation to understanding
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.
