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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Vestnik dermatologii i venerologii</journal-id><journal-title-group><journal-title xml:lang="en">Vestnik dermatologii i venerologii</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник дерматологии и венерологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0042-4609</issn><issn publication-format="electronic">2313-6294</issn><publisher><publisher-name xml:lang="en">Rossijskoe Obschestvo Dermatovenerologov i Kosmetologov</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">294</article-id><article-id pub-id-type="doi">10.25208/0042-4609-2017-93-1-31-37</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL STUDIES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НАУЧНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">The effect of ultraviolet on direct current potentials of the human skin</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние ультрафиолета на уровень постоянного электрического потенциала кожи человека</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lazarev</surname><given-names>A. O.</given-names></name><name xml:lang="ru"><surname>Лазарев</surname><given-names>А. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abtava@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">State research center of Russian Federation - Institute of biomedical problems of RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН Государственный научный центр Российской Федерации - Институт медико-биологических проблем РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-02-24" publication-format="electronic"><day>24</day><month>02</month><year>2017</year></pub-date><volume>93</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>31</fpage><lpage>37</lpage><history><date date-type="received" iso-8601-date="2017-08-24"><day>24</day><month>08</month><year>2017</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Lazarev A.O.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Лазарев А.О.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Lazarev A.O.</copyright-holder><copyright-holder xml:lang="ru">Лазарев А.О.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://vestnikdv.ru/jour/article/view/294">https://vestnikdv.ru/jour/article/view/294</self-uri><abstract xml:lang="en"><p>Aim of the study. investigation of the suntan on the level of omnipresent electrical potential of skin in frames of development of the hypothesis about the melanocyte participation in skin electrical activity formation. Material and methods. 11 men and 11 women on summer holyday took part in investigation. The relationship between the levels of skin omnipresent electrical potential and the reflection factor were investigated. The omnipresent electrical potentials were registered as the potential differences between the two areas on skin using the Orion 261S pH meter and the liquid Ag/AgCl electrodes of the same company. The reflecting factor was estimated with the help of the spectroradiometer LI-1800 (“LI-COR”) using the included intgrational sphere 1800-12 coated with barium sulfate. Hole size was 1,45 cm. The reflection factor was estimated at the wave band 375-800 nanometers with the scanning pitch 1 nm. Main results. There is a mathematical relation between the magnitudes of potential differences and the reflection factors of the areas of sunburnt skin and the areas of the skin not affected with sun at wave light 620-729 nm. The relationship could be approximated in linear equation. Spearman correlation factor between these two parameters was -0,43 (p = 0,045), between the differences in levels of skin omnipresent electrical potential and the reflection factors of the sunburnt skin was r = -0,52 (p = 0,01), between the differences of the electrical potentials of sunburnt skin and the skin not affected with sun was r = -0,28 (p = 0,2). The presented results of investigation and the data from literature allow to conclude that there is a positive correlation between the level of omnipresent electrical potential of skin and the quantity of melanosomes filled with melanin. Conclusion. It is suggested that melanocytes take part in formation of the skin electrical activity via melanosomes filled with melanin. At the same time the melanocyte contribution in skin electrical activity is not assessed.</p></abstract><trans-abstract xml:lang="ru"><p>Цель. Исследование влияния загара на уровень постоянного электрического потенциала кожи для разработки гипотезы об участии меланоцитов в формировании электрической активности кожи. Материал и методы. В обследовании участвовали 11 мужчин и 11 женщин, находившихся на летнем отдыхе. Изучали связь между уровнем постоянного электрического потенциала кожи и коэффициентом отражения. Постоянные электрические потенциалы регистрировали в виде разности электрических потенциалов между двумя областями кожи посредством Orion 261S pH meter и жидкостных Ag/AgCl электродов той же фирмы. Для измерения коэффициента отражения использовали спектрорадиометр Li-1800 фирмы LI-COR, входящий в комплектацию интегрирующей сферы 1800-12, покрытой сульфатом бария. Диаметр отверстия 1,45 см. Коэффициент отражения измеряли в диапазоне длин волн 375-800 нм с шагом сканирования 1 нм. Результаты. Между величинами разности электрических потенциалов и разности коэффициентов отражения загорелой и не подвергавшейся действию солнца области кожи в диапазоне длин волн 620-720 нм существует математическая зависимость, которая может быть аппроксимирована линейным уравнением. Коэффициент корреляции Спирмена между этими показателями равен -0,43 (р = 0,045), между величиной разности электрических потенциалов и величиной коэффициента отражения загорелой кожи r = -0,52 (р = 0,01), между величиной разности электрических потенциалов и величиной коэффициента отражения области кожи, не подвергавшейся действию солнца, r = -0,28 (р = 0,2). На основании результатов проведенного исследования и анализа данных литературы следует, что между уровнем постоянных электрических потенциалов кожи и количеством меланосом, наполненных меланином, существует положительная корреляция. Заключение. Предполагается, что меланоциты участвуют в формировании электрической активности кожи посредством меланосом, наполненных меланином. При этом вклад меланоцитов в электрическую активность кожи не является определяющим.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кожа</kwd><kwd>постоянные электрические потенциалы</kwd><kwd>разность электрических потенциалов</kwd><kwd>коэффициент отражения</kwd><kwd>меланоциты</kwd><kwd>skin</kwd><kwd>omnipresent electrical potentials</kwd><kwd>difference of omnipresent electrical potentials</kwd><kwd>reflection factor</kwd><kwd>melanocytes</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Boucsein W. Electrodermal Activity. 2nd ed. Germany: Springer 2012.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Barker A. T., Jaffe L. E., Vanable J. W. The glabrous epidermis of cavies contains a powerful battery. 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