Abstract
The objective : to investigate the anti-tuberculosis effect of laser photodynamic inactivation (PDI) of M. tuberculosis H37Rv in vitro by methylene blue (MB) in the minimum concentration (1 μ g/ml) with laser radiation of 662 nm. Subjects and methods. A comparative analysis of the intensity of growth of Mycobacterium tuberculosis H37Rv after laser irradiation and laser FDI by MB with different doses of light energy was carried out. Results . Laser radiation with a wavelength of 662 nm was found to have an inhibitory effect on the growth of M. tuberculosis H37Rv. FDI of Mycobacterium tuberculosis was first registered in the presence of a minimum concentration of MB (1 µg/ml) which suppressed colony growth by 97 and 93% when they were processed by radiation with a wavelength of 662 nm with the lowest density of doses of light energy (46.9 and 93.75 J/cm 2 ).
Highlights
Цель: исследование противотуберкулезных эффектов лазерной фотодинамической инактивации (ФДИ) M. tuberculosis H37Rv in vitro метиленовым синим (МС) в минимальной концентрации (1 мкг/мл) при лазерном излучении длиной волны 662 нм
Laser radiation with a wavelength of 662 nm was found to have an inhibitory effect on the growth of M. tuberculosis H37Rv
FDI of Mycobacterium tuberculosis was first registered in the presence of a minimum concentration of methylene blue (MB) (1 μg/ml) which suppressed colony growth by 97 and 93% when they were processed by radiation with a wavelength of 662 nm with the lowest density of doses of light energy (46.9 and 93.75 J/cm2)
Summary
Цель: исследование противотуберкулезных эффектов лазерной фотодинамической инактивации (ФДИ) M. tuberculosis H37Rv in vitro метиленовым синим (МС) в минимальной концентрации (1 мкг/мл) при лазерном излучении длиной волны 662 нм. Проведен сравнительный анализ интенсивности роста Mycobacterium tuberculosis H37Rv после лазерного облучения и лазерной ФДИ МС при различных дозах световой энергии. Обнаружено, что лазерное излучение длиной волны 662 нм оказывает ингибирующее действие на ростовые свойства M. tuberculosis H37Rv. Впервые зарегистрирована ФДИ микобактерий туберкулеза в присутствии минимальной концентрации МС (1 мкг/мл), при которой реализуется подавление роста колоний на 97 и 93% при их обработке излучением длиной волны 662 нм с наименьшими значениями плотности доз световой энергии (46,9 и 93,75 Дж/см2).
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