TABLE 3.
Summary of available research on the intestinal microbiota in cats with diseases.
| References | Sample | Disease | Method | Alterations of microbiota |
| Suchodolski et al. (2015) | Feces | Acute (n = 19) or chronic diarrhea (n = 29) | Sequencing and qPCR | Burkholderiales, Enterobacteriaceae, Streptococcus, Collinsella↑ Campylobacterales, Bacteroidaceae, Megamonas, Helicobacter, Roseburia↓ |
| Inness et al. (2007) | Feces | IBD (n = 11) | FISH | IBD: Total bacteria, Bifidobacterium spp., Bacteroides↓ Desulfovibrio↑ |
| Janeczko et al. (2008) | Intestine Biopsies | IBD (n = 13) | FISH | Enterobacteriaceae↑ |
| Fischer et al. (2017) | Feces | Obesity (n = 8) | 16S rRNA sequencing | Firmicutes, Peptostreptococcaceae↑ Bacteroidetes↓ |
| Pallotto et al. (2018) | Feces | Obesity (n = 4) | Illumina sequencing | Restriction of diet: Actinobacteria↑; Bacteroidetes↓ |
| Ghosh et al. (2013) | Ileum Biopsies | Severe systemic ill (n = 50) | FISH | Enterococcus faecalis↑ |
| Weese et al. (2015) | Rectum | Immunodeficiency (n = 16) | Illumina sequencing | Bifidobacteriales, Lactobacillales, Aeromonadales↑ |
| Rossi et al. (2017) | Feces | Megacolon (n = 3) and constipation (n = 7) | qPCR | Probiotic (SLAB51TM): Lactobacillus spp., Bacteroidetes↑ |
| Schmid et al. (2018) | Feces | Severe GI diseases (n = 6) | Illumina sequencing | Omeprazole: Bifidobacterium spp.↑ Streptococcus, Lactobacillus, Clostridium, Faecalibacterium spp.↓ |
| Marsilio et al. (2019) | Feces | IBD (n = 13) and SCL (n = 14) | Illumina sequencing | Enterobacteriaceae, Streptococcaceae↑ Ruminococcaceae, Turicibacteraceae, Bifidobacterium, Bacteroidetes↓ |
| Kieler et al. (2019) | Feces | Diabetes mellitus (n = 23) | Illumina sequencing | Anaerotruncus, Dialister, Ruminococcaceae↓ |