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No Warranties or Representations
Lyme Disease symptoms vary from person to person. (lymes disease lyme's disease lime disease limes disease)
The data and information presented in this web site are presented in good faith and believed to be accurate regarding Lyme disease (commonly misspelled lymes disease lyme's disease lime disease limes disease) and other related diseases. Any and all liability for the content or any omissions including any inaccuracies, errors, or misstatements in such data or information is expressly disclaimed. The web site is compiled for the sole purpose of informing community members of resources and information pertaining to Lyme Borreliosis Disease and its coinfections. Lyme disease symptoms may vary from person to person.
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Consult a qualified Lyme ( Borreliosis ) Disease literate doctor for medical advice if Lyme Disease is suspect to discuss your Lyme Disease Symptoms.
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Purification and Characterization of Borrelia burgdorferi from Feeding Nymphal Ticks (Ixodes scapularis)
Sivaprakash Rathinavelu and Aravinda M. de Silva*
Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, North Carolina 27599
Received 22 January 2001/Returned for modification 22 February 2001/Accepted 8 March 2001
Here we describe a protocol for purifying Borrelia burgdorferi from feeding ticks by velocity centrifugation and Percoll density gradient centrifugation. The purified spirochetes were motile and 10- to 20-fold purer than the bacteria in crude tick homogenates. The purified bacteria were present in sufficient quantity for protein and gene expression studies. In comparison to culture-grown bacteria, tick-borne spirochetes had several proteins that were upregulated and a few that were downregulated. When the levels of B. burgdorferi outer surface proteins OspA and OspC were measured, OspC protein and mRNA levels were lower in cultured bacteria than in bacteria purified from ticks. Although differences in OspA mRNA levels were observed between cultured and tick-borne bacteria, no differences were observed at the protein level.
These experiments demonstrate that tick-transmitted borreliae display a gene expression and antigen profile different from that of spirochetes cultured in vitro.
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