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Costa NS, Oliveira LMA, Rio-Tinto A, Pinto IBF, Oliveira AEAS, Santana JDD, Santos LF, Costa RSN, Marinho PS, Fracalanzza SEL, Teixeira LM, Pinto TCA. Anovaginal Colonization by Group B Streptococcus and Streptococcus anginosus among Pregnant Women in Brazil and Its Association with Clinical Features. Antibiotics (Basel) 2024; 13:85. [PMID: 38247643 PMCID: PMC10812730 DOI: 10.3390/antibiotics13010085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
Streptococcus agalactiae (Group B Streptococcus; GBS) is a leading cause of neonatal invasive disease worldwide. GBS can colonize the human gastrointestinal and genitourinary tracts, and the anovaginal colonization of pregnant women is the main source for neonatal infection. Streptococcus anginosus, in turn, can colonize the human upper respiratory, gastrointestinal, and genitourinary tracts but has rarely been observed causing disease. However, in the last years, S. anginosus has been increasingly associated with human infections, mainly in the bloodstream and gastrointestinal and genitourinary tracts. Although anovaginal screening for GBS is common during pregnancy, data regarding the anovaginal colonization of pregnant women by S. anginosus are still scarce. Here, we show that during the assessment of anovaginal GBS colonization rates among pregnant women living in Rio de Janeiro, Brazil, S. anginosus was also commonly detected, and S. anginosus isolates presented a similar colony morphology and color pattern to GBS in chromogenic media. GBS was detected in 48 (12%) while S. anginosus was detected in 17 (4.3%) of the 399 anovaginal samples analyzed. The use of antibiotics during pregnancy and history of urinary tract infections and sexually transmitted infections were associated with the presence of S. anginosus. In turn, previous preterm birth was associated with the presence of GBS (p < 0.05). The correlation of GBS and S. anginosus with relevant clinical features of pregnant women in Rio de Janeiro, Brazil, highlights the need for the further investigation of these important bacteria in relation to this special population.
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Affiliation(s)
- Natalia Silva Costa
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Laura Maria Andrade Oliveira
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Andre Rio-Tinto
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Isabella Bittencourt Ferreira Pinto
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Ana Elisa Almeida Santos Oliveira
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Julia de Deus Santana
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Laiane Ferreira Santos
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Rayssa Santos Nogueira Costa
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Penelope Saldanha Marinho
- Faculdade de Medicina, Maternidade Escola, Universidade Federal do Rio de Janeiro, Rio de Janeiro 22240-000, Brazil;
| | - Sergio Eduardo Longo Fracalanzza
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Lucia Martins Teixeira
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
| | - Tatiana Castro Abreu Pinto
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (N.S.C.); (L.M.A.O.); (A.R.-T.); (I.B.F.P.); (A.E.A.S.O.); (J.d.D.S.); (L.F.S.); (R.S.N.C.); (S.E.L.F.); (L.M.T.)
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Alvim DCSS, Oliveira LMA, Simões LC, Costa NS, Fracalanzza SEL, Teixeira LM, Ferreira RBR, Pinto TCA. Influence of Penicillin on Biofilm Formation by Streptococcus agalactiae Serotype Ia/CC23. Microb Drug Resist 2022; 28:517-524. [PMID: 35263182 DOI: 10.1089/mdr.2021.0238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Streptococcus agalactiae (Group B Streptococcus , GBS) is a major agent of perinatal infections. Biofilms have been associated with GBS colonization and disease, as well as with infection persistence and recurrence. Although GBS remains susceptible to beta-lactams, it is still unknown how sessile cells respond to these antibiotics. Here, we evaluated the effect of different concentrations of penicillin (3-48 mg/L) on in vitro biofilm formation by four GBS strains belonging to serotype Ia/clonal complexes23 that were recovered from the oropharynx or urine of pregnant women and were previously characterized as strong biofilm producers. All four GBS strains were fully susceptible to penicillin (minimum inhibitory concentration = 0.023 mg/L), but penicillin was not able to fully prevent biofilm formation by these GBS strains. Biofilms formed in the presence of penicillin had reduced biomasses and thickness, but they were still classified as strong. Penicillin significantly reduced the density of live cells, but higher penicillin concentrations did not lead to improved prevention of biofilm formation. Biofilms formed in the presence of penicillin had no channels or long cocci chains observed in penicillin-free biofilms. Overall, results highlight the concerning possible impacts of biofilm formation in penicillin-based treatment and preventive strategies of GBS infections, even when the bacterial strain involved is fully antibiotic-susceptible.
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Affiliation(s)
| | | | - Leandro Corrêa Simões
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Natalia Silva Costa
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Lucia Martins Teixeira
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Tatiana Castro Abreu Pinto
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Pinto TCA, Costa NS, Oliveira LMA. World Meningitis Day and the World Health Organization's roadmap to defeat bacterial meningitis in the COVID-19 pandemic era. Int J Infect Dis 2021; 107:219-220. [PMID: 33932605 DOI: 10.1016/j.ijid.2021.04.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 10/21/2022] Open
Affiliation(s)
- Tatiana Castro Abreu Pinto
- Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Natalia Silva Costa
- Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Rocha MDS, Costa NS, Costa JC, Angelo MT, Lessa Angelo Júnior JR, Sonoda L, de Andrade MR, Scatigno Neto A. CT identification of ascaris in the biliary tract. Abdom Imaging 1995; 20:317-9. [PMID: 7549734 DOI: 10.1007/bf00203362] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Ascariasis is one of the most common helminthic diseases worldwide. The presence of this worm in the biliary tree causes biliary colic, recurrent pyogenic cholangitis, pancreatitis, hepatic abscesses, and septicemia. The diagnosis of biliary ascariasis is usually made by ultrasound (US). We report the computerized-tomography (CT) aspects that allowed the identification of ascaris in the biliary tract in two patients.
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Affiliation(s)
- M de S Rocha
- Faculdade de Medicina, Universidade de São Paulo, Brazil
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Abstract
An in vitro method for longitudinal evaluation of root canal sealers was developed and applied. A newly introduced cell culture chamber was used to evaluate the cytotoxic effects of test samples immediately after mixing and for an extended period of time thereafter. A ranking of the test materials, based on their cytotoxicity, was allowed by the method.
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Alvares S, Costa NS, De Sampaio Leite Santos P, Prokopoyidsck Y. [Importance of disinfection in the treatment of teeth associated with periapical lesions]. Rev Assoc Paul Cir Dent 1981; 35:292-4. [PMID: 6947331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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