Title |
Effect of promethazine on biofilms of gram-positive cocci associated with infectious endocarditis
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Published in |
Biofouling, May 2023
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DOI | 10.1080/08927014.2023.2202313 |
Pubmed ID | |
Authors |
Gláucia Morgana de Melo Guedes, Carliane Melo Alves Melgarejo, Alyne Soares Freitas, Bruno Rocha Amando, Cecília Leite Costa, Crister José Ocadaque, Francisco Ivanilsom Firmiano Gomes, Silviane Praciano Bandeira, Rossana de Aguiar Cordeiro, Marcos Fábio Gadelha Rocha, José Júlio Costa Sidrim, Débora de Souza Collares Maia Castelo-Branco |
Abstract |
This study evaluated the antimicrobial activity of promethazine against Staphylococcus aureus, Staphylococcus epidermidis and Streptococcus mutans and its effect on the antimicrobial susceptibility of biofilms grown in vitro and ex vivo on porcine heart valves. Promethazine was evaluated alone and in combination with vancomycin and oxacillin against Staphylococcus spp. and vancomycin and ceftriaxone against S. mutans in planktonic form and biofilms grown in vitro and ex vivo. Promethazine minimum inhibitory concentration range was 24.4-95.31 μg/mL and minimum biofilm eradication concentration range was 781.25-3.125 μg/mL. Promethazine interacted synergistically with vancomycin, oxacillin and ceftriaxone against biofilms in vitro. Promethazine alone reduced (p < 0.05) the CFU-counts of biofilms grown on heart valves for Staphylococcus spp., but not for S. mutans, and increased (p < 0.05) the activity of vancomycin, oxacillin and ceftriaxone against biofilms of Gram-positive cocci grown ex vivo. These findings bring perspectives for repurposing promethazine as adjuvant in the treatment of infective endocarditis. |
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Guinea-Bissau | 1 | 50% |
Unknown | 1 | 50% |
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Scientists | 1 | 50% |
Members of the public | 1 | 50% |
Mendeley readers
Geographical breakdown
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Unknown | 3 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Unspecified | 1 | 33% |
Student > Ph. D. Student | 1 | 33% |
Unknown | 1 | 33% |
Readers by discipline | Count | As % |
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Unspecified | 1 | 33% |
Immunology and Microbiology | 1 | 33% |
Unknown | 1 | 33% |