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Perdigão Neto LV, Corscadden L, Martins RCR, Nagano DS, Cunha MPV, Neves PR, Franco LAM, Moura MLN, Rizek CF, Guimarães T, Boszczowski Í, Rossi F, Levin AS, Stabler RA, Costa SF. Simultaneous colonization by Escherichia coli and Klebsiella pneumoniae harboring mcr-1 in Brazil. Infection 2019; 47:661-664. [PMID: 31025216 DOI: 10.1007/s15010-019-01309-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 04/17/2019] [Indexed: 10/27/2022]
Abstract
CASE PRESENTATION We present a case report of a woman, concurrently colonized by polymyxin-resistant E. coli and K. pneumoniae. A Brazilian female patient, in her mid-fifties, was hospitalized with schistosomiasis. During hospitalization, polymyxin-resistant E. coli and K. pneumoniae were isolated from surveillance cultures. METHODS Identification, antimicrobial susceptibility testings, PCR for mcr-1, plasmid transfer by conjugation and whole genome sequencing were performed. RESULTS E. coli ST744 and K. pneumoniae ST101 carrying mcr-1 gene were described. Transconjugant E. coli was positive for mcr-1 and IncX4 by PCR. The plasmid is a 33,304-base pair plasmid, and the mcr-1 gene was the only antimicrobial resistance gene present in the plasmid. CONCLUSIONS This study presents a case report of a hospitalized woman, concurrently colonized by mcr-1-harboring E. coli ST744, a different ST from previously described in Brazil, and a K. pneumoniae ST101.
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Affiliation(s)
- Lauro Vieira Perdigão Neto
- Hospital das Clínicas, University of São Paulo, Rua Dr. Ovídio Pires de Campos, 225, Sala 629, São Paulo, SP, 05403-010, Brazil.
- , Rua Arruda Alvim, 107, #142, São Paulo, SP, 05410-020, Brazil.
| | - Louise Corscadden
- Department of Infectious and Tropical Diseases, School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Roberta Cristina Ruedas Martins
- Department of Infectious Diseases and LIM-54, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 470, São Paulo, SP, 05403-000, Brazil
| | - Débora Satie Nagano
- Department of Infectious Diseases and LIM-54, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 470, São Paulo, SP, 05403-000, Brazil
| | - Marcos Paulo Vieira Cunha
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, São Paulo, SP, 05508-270, Brazil
| | - Patrícia Regina Neves
- Department of Infectious Diseases and LIM-54, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 470, São Paulo, SP, 05403-000, Brazil
| | - Lucas Augusto Moyses Franco
- Hospital das Clínicas, University of São Paulo, Rua Dr. Ovídio Pires de Campos, 225, Sala 629, São Paulo, SP, 05403-010, Brazil
| | - Maria Luísa Nascimento Moura
- Hospital das Clínicas, University of São Paulo, Rua Dr. Ovídio Pires de Campos, 225, Sala 629, São Paulo, SP, 05403-010, Brazil
| | - Camila Fonseca Rizek
- Department of Infectious Diseases and LIM-54, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 470, São Paulo, SP, 05403-000, Brazil
| | - Thais Guimarães
- Hospital das Clínicas, University of São Paulo, Rua Dr. Ovídio Pires de Campos, 225, Sala 629, São Paulo, SP, 05403-010, Brazil
| | - Ícaro Boszczowski
- Hospital das Clínicas, University of São Paulo, Rua Dr. Ovídio Pires de Campos, 225, Sala 629, São Paulo, SP, 05403-010, Brazil
| | - Flávia Rossi
- Microbiology Laboratory, Hospital das Clínicas, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 155, São Paulo, SP, 05403-000, Brazil
| | - Anna S Levin
- Hospital das Clínicas, University of São Paulo, Rua Dr. Ovídio Pires de Campos, 225, Sala 629, São Paulo, SP, 05403-010, Brazil
- Department of Infectious Diseases and LIM-54, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 470, São Paulo, SP, 05403-000, Brazil
| | - Richard A Stabler
- Department of Infectious and Tropical Diseases, School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Silvia F Costa
- Department of Infectious Diseases and LIM-54, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 470, São Paulo, SP, 05403-000, Brazil
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Fornari DC, Ribero RP, Streit DP, Vargas L, Godoy LC, Oliveira CAL, Digmayer M, Galo JM, Neves PR. Increasing storage capability of pacu (Piaractus mesopotamicus) embryos by chilling: development of a useful methodology for hatcheries management. Cryo Letters 2012; 33:126-134. [PMID: 22576116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Cryopreservation of fish gametes has been studied extensively in the last few decades, but the successful cryopreservation of fish embryos remains elusive. However, recent studies using short-term chilling techniques have shown that it is possible to store embryos at low temperatures with no significant loss in viability. Information on cryopreservation of Neotropical freshwater fish embryos has so far been very limited in the literature. In the present study, chilling protocols for storage of pacu embryos at -8°C for up to 24 h were studied using different concentrations of sucrose in methanol. Embryos tolerated the subzero temperature for up to 6 h with no adverse effects (P > 0.05). After 12 h chilling, hatching rate of 64.0 +/- 3.5 percent was recorded. Low temperature storage of pacu embryos by chilling is detailed here for the first time. Further studies are needed to extend the storage time and to improve the hatching rate.
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Affiliation(s)
- D C Fornari
- PeixeGen Research Group, Maringá State University, Department of Animal Science, Maringá, Brazil
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Carmo MM, Ferreira T, Lousada N, Bárbara C, Neves PR, Correia JM, Rendas AB. [The repercussions of pulmonary congestion on ventilatory volumes, capacities and flows]. Rev Port Cardiol 1994; 13:763-8; 736. [PMID: 7833063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVES To evaluate the effects of pulmonary congestion on pulmonary function. STUDY DESIGN Prospective study performed in patients with left ventricular failure or mitral stenosis. MATERIAL AND METHODS Forty-eight hospitalized patients were included suffering from pulmonary congestion either from left ventricular failure or mitral stenosis. While in hospital all patients were submitted to right heart catheterization by the Swan-Ganz method and also to an echocardiographic examination. Within 48 hours after the patients were submitted to the following lung function studies: lung volumes and capacities by the multi-breath helium dilution method and airway flows by pneumotachography. Respiratory symptoms were evaluated by the Medical Research Council Questionnaire and the functional class classified according to the NYHA. Correlations were made between the functional and clinical data. RESULTS Regarding the cardiac evaluation patients presented with a mean pulmonary wedge pressure of 19.9 +/- 8.6 mmHg, a cardiac index of 2.5 +/- 0.8 l/min/m2, an end diastolic dimension of the left ventricle of 65.9 +/- 10.1 mm, and end systolic dimension of 51.2 +/- 12.2 mm, with a shortening fraction of 21.8 +/- 9.5%. The pulmonary evaluation showed a restrictive syndrome with a reduction in the mean values of the following parameters: total pulmonary capacity 71 +/- 14.4% of the predicted value (pv), forced vital capacity (FVC) 69.8 +/- 20.5% pv, and forced expiratory volume (FEV1) of 64 +/- 21.8% vp. The index FEV1/FVC was within the normal value of 72.7 +/- 9.7%. These lung function results did not correlate significantly with either the clinical, the hemodynamic or echocardiographic findings. CONCLUSION In these group of patients pulmonary congestion led to the development of a restrictive syndrome which failed to correlate in severity with the duration of the disease, the pulmonary wedge pressure and the left ventricular function.
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