期刊
ANAEROBE
卷 16, 期 3, 页码 311-313出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.anaerobe.2009.10.006
关键词
Mouse; Host organism; Specific pathogen free mice; Altered Schaedler flora; Microflora function
类别
For many years, laboratory animal breeders have used a mixture of eight bacterial strains, the so-called Altered Schaedler Flora (ASF) to inoculate Caesarian derived offspring when establishing colonies of Specific Pathogen Free (SPF) rodents fulfilling the criteria worked out by regulatory agencies as AALAS, FELASA, etc. However, recently it was shown in this journal that such SPF animals harbored a fecal flora far different from that of feral mice. Over the years, we have worked with functional aspects of host-microbe interactions(s) and the aim of the present study was to analyze some intestinal microbial biochemical activities in mice harboring an ASF flora. In the five parameter studied, the ASF mice showed a pattern similar to what is found in germfree mice and rats, demonstrating an absence of microorganisms capable of performing these reactions. These findings call for a re-considering of the SPF concept. Presence of important microbiological functions should be taken into consideration when rodents are used in biomedical research. (C) 2009 Elsevier Ltd. All rights reserved.
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