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Candidatus Bartonella mayotimonensis and endocarditis
Eleanor Y Lin1, Constantine Tsigrelis, Larry M Baddour
1Mayo Clinic, Rochester, Minnesota, USA. lin.eleanor@alumni.mayo.edu
Emerging Infectious Diseases
|March 6, 2010
Summary
A novel Bartonella species, Candidatus Bartonella mayotimonensis, was identified in aortic valve tissue from an infective endocarditis patient. This discovery advances understanding of Bartonella in cardiovascular infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Genomics
Background:
- Bartonella species are known human pathogens causing a range of febrile illnesses.
- Infective endocarditis is a serious infection of the heart valves, often requiring complex treatment.
- The etiological agents of some infective endocarditis cases remain elusive.
Observation:
- A novel Bartonella species was isolated from native aortic valve tissue.
- The patient presented with clinical signs and symptoms consistent with infective endocarditis.
Findings:
- The new species is proposed as Candidatus Bartonella mayotimonensis.
- Identification was confirmed through PCR amplification and sequencing of five key genes: 16S rRNA, ftsZ, rpoB, gltA, and the internal transcribed spacer region.
- Phylogenetic analysis based on these genes supports its classification as a distinct Bartonella species.
Implications:
- This finding expands the known spectrum of Bartonella-associated diseases.
- Candidatus Bartonella mayotimonensis may represent a previously unrecognized cause of infective endocarditis.
- Further research is needed to understand the prevalence, transmission, and pathogenicity of this new species.
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