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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Burkholderia cepacia complex in cystic fibrosis in a Brazilian reference center

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Author(s):
Dentini, Priscila [1] ; Lima Marson, Fernando Augusto [1, 2] ; Bonadia, Luciana Cardoso [2] ; Bertuzzo, Carmen Silvia [2] ; Ribeiro, Antonio Fernando [1] ; Levy, Carlos Emilio [3] ; Ribeiro, Jose Dirceu [1]
Total Authors: 7
Affiliation:
[1] Univ Estadual Campinas, Sch Med Sci, Dept Pediat, POB 6111, BR-13081970 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Med Sci, Dept Med Genet, POB 6111, BR-13081970 Campinas, SP - Brazil
[3] Univ Estadual Campinas, Sch Med Sci, Dept Clin Pathol, POB 6111, BR-13081970 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: MEDICAL MICROBIOLOGY AND IMMUNOLOGY; v. 206, n. 6, p. 447-461, DEC 2017.
Web of Science Citations: 0
Abstract

The Burkholderia cepacia complex (BCC) can cause a severe decline in lung function in cystic fibrosis (CF). Our objective was to determine the BCC prevalence and to evaluate its clinical impact on CF. Clinical and laboratory variables were determined for CF patients with BCC (Group-A = 50 patients) and without BCC (Group-B = 134 patients). The microorganisms were identified by biochemical tests, the Vitek2(A (R))Compact test, recA-PCR and recA-nested-PCR with species-specific primers and DNA sequencing. The patients were evaluated by the Shwachman-Kulczycki score (SKCS), Bhalla score (BS), spirometry and body mass index (BMI). The BCC prevalence was 22.5%. The most common species were Burkholderia multivorans (30%), Burkholderia cepacia (24%), Burkholderia cenocepacia IIIA (10%), B. cenocepacia IIIB (2%) and Burkholderia vietnamiensis (2%). There was difference between the groups in nutritional status (p = 0.02) and general activity (p = 0.026). There was difference in total BS points (p = 0.04) and the following parameters: bronchiectasis severity (p = 0.007), peribronchial thickening (p = 0.013), bronchiectasis extent (p = 0.01) and general aspects of the affected bronchial zone (p = 0.02). The respiratory disorder classifications were as follows: obstructive-4.8% (Group-A) and 23.8% (Group-B); restrictive-9.5% (Group-A and Group-B); obstructive + restrictive-19% (Group-A) and 1.6% (Group-B); and obstructive + restrictive with a decreased forced expiratory flow-47.6% (Group-A) and 30.2% (Group-B) (p = 0.02). Nutritional status was a minor contributing factor to weight, height and BMI in the Group-A (p = 0.02). The BCC prevalence, particularly the prevalence of B. multivorans, was higher in this study. The SKCS, BS, spirometry and nutritional status results showed that BCC has a negative impact on clinical status. Phenotypic methods are useful for the identification of presumptive BCC. The Vitek2(A (R))Compact test showed accuracy in BCC identification. PCR, nested-PCR, and recA sequencing showed specificity in BCC species identification. (AU)

FAPESP's process: 11/12939-4 - Association between polymorphisms in modifier genes in children and adolescent with allergic and non-allergic: mild, moderate and severe asthma
Grantee:Fernando Augusto de Lima Marson
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/12858-5 - Identification of prevalent mutations and clinical and functional characterization of children and adults with primary ciliary dyskinesia
Grantee:Fernando Augusto de Lima Marson
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 15/12183-8 - Identification of prevalent mutations and clinical and functional characterization of children and adults with primary ciliary dyskinesia
Grantee:Jose Dirceu Ribeiro
Support type: Regular Research Grants
FAPESP's process: 11/18845-1 - Association between polymorphisms in modifier genes in children and adolescent with allergic and non-allergic mild, moderate and severe asthma
Grantee:Jose Dirceu Ribeiro
Support type: Regular Research Grants