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A link between osteomyelitis and IL1RN and IL1B polymorphisms-a study in patients from Northeast Brazil.


ABSTRACT: Background and purpose - Treatment failure of osteomyelitis can result from genetic susceptibility, highlighting polymorphisms of the interleukin-1 (IL-1) family members, central mediators of innate immunity and inflammation. Polymorphisms are DNA sequence variations that are common in the population (1% or more) and represent multiple forms of a single gene. We investigated the association of IL1RNVNTR (rs2234663) and IL1B-511C?>?T (rs16944) polymorphisms with osteomyelitis development in patients operated on because of bone trauma. Patients and methods - 153 patients who fulfilled the inclusion criteria were enrolled from a referral public hospital for trauma. All the patients were followed up daily until hospital discharge and, after this, on an outpatient basis. Patients were treated with prophylactic antimicrobials and surgery according to traumatology service protocol. The IL1RNVNTR and the IL1B-511C?>?T polymorphisms were determined by PCR and PCR-RFLP, respectively. Results - The IL1RN*2/*2 genotype was associated (OR: 7; p < 0.001) with a higher risk of osteomyelitis and was also significantly associated with Staphylococcus aureus infection. The haplotypes (combination of different markers) *2-C and *2-T were also associated with osteomyelitis development. Interpretation - IL1B-511C?>?T and IL1RNVNTR polymorphisms were associated with osteomyelitis development, which may have implications for patients with bone traumas. These data may be relevant for new therapeutic strategies for this disease.

SUBMITTER: Alves De Souza C 

PROVIDER: S-EPMC5560221 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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A link between osteomyelitis and IL1RN and IL1B polymorphisms-a study in patients from Northeast Brazil.

Alves De Souza Clinio C   Queiroz Alves De Souza Argos A   Queiroz Alves De Souza Maria do Socorro MDS   Dias Leite José Alberto JA   Silva De Morais Maíra M   Barem Rabenhorst Sílvia Helena SH  

Acta orthopaedica 20170706 5


Background and purpose - Treatment failure of osteomyelitis can result from genetic susceptibility, highlighting polymorphisms of the interleukin-1 (IL-1) family members, central mediators of innate immunity and inflammation. Polymorphisms are DNA sequence variations that are common in the population (1% or more) and represent multiple forms of a single gene. We investigated the association of IL1RNVNTR (rs2234663) and IL1B-511C > T (rs16944) polymorphisms with osteomyelitis development in patie  ...[more]

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