{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T14:26:00Z","timestamp":1787840760123,"version":"build-2784847793"},"reference-count":20,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,1]]},"abstract":"Abstract<\/jats:title>\n \n Background:<\/jats:title>\n \n In patients with cystic fibrosis (CF), representatives of the fast-growing\n Mycobacterium abscessus<\/jats:italic>\n complex (MABSc) are often distinguished, but the culture of the material taken from such patients increases the growth time. We analyzed the terms of cultivation of MABSc representatives on dense nutrient media and also evaluated the productivity of a modified nutrient medium based on agar for the isolation of\n Burkholderia cepacia<\/jats:italic>\n complex (BCC).\n <\/jats:p>\n <\/jats:sec>\n \n Methods:<\/jats:title>\n Sixty-four strains of MABSc isolated from patients with CF and suspected tuberculosis were analyzed. The material from the patients was cultured on a universal chromogenic medium, 5% blood agar, yolk-salt agar, selective medium for isolation of BCC, and L\u00f6wenstein\u2013Jensen medium. The cultures were incubated for 5 days (37\u00b0C, aerobic conditions), after for 23 days (28\u00b0C, aerobic conditions). The productivity of the developed nutrient medium was evaluated by the number of cells that gave visible growth after culturing 0.1 mL of a bacterial suspension of 103 CFU\/mL.<\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n 76.8% of the strains grew in a 2-week period, and 23.2% of the strains were obtained at a later date from 18 to 28 days (average: 21.23 days). The modified medium with a concentration of 240 mg of iron (III) polymaltose hydroxide proved to be the most optimal for the isolation of MABSc.<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n When using a chromogenic medium for culture material from patients with CF, it is necessary to extend incubation up to 28 days to increase the probability of MABSc isolation. The modified BCC medium showed a good selectivity result but required further investigation.<\/jats:p>\n <\/jats:sec>","DOI":"10.4103\/ijmy.ijmy_205_23","type":"journal-article","created":{"date-parts":[[2024,3,19]],"date-time":"2024-03-19T20:00:49Z","timestamp":1710878449000},"page":"34-39","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Identification of the Optimal Cultivation Period Required to Isolate Representatives of Mycobacterium abscessus Complex Isolated from Patients with Cystic Fibrosis"],"prefix":"10.4103","volume":"13","author":[{"given":"Alexander Mikhailovich","family":"Kovalyov","sequence":"first","affiliation":[{"name":"Research and Educational Professional Centre for Genetic and Laboratory Technologies, Samara State Medical University, Samara, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danir 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Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatyana Rudolfovna","family":"Nikitina","sequence":"additional","affiliation":[{"name":"Research and Educational Professional Centre for Genetic and Laboratory Technologies, Samara State Medical University, Samara, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Artem Viktorovich","family":"Lyamin","sequence":"additional","affiliation":[{"name":"Research and Educational Professional Centre for Genetic and Laboratory Technologies, Samara State Medical University, Samara, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2024,3,15]]},"reference":[{"key":"R1-20240902","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1007\/5584_2016_45","article-title":"Non-tuberculous mycobacteria:Classification, diagnostics, and therapy","volume":"944","author":"Porvaznik","year":"2017","journal-title":"Adv Exp Med 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