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Nocardia
Published in Firza Alexander Gronthoud, Practical Clinical Microbiology and Infectious Diseases, 2020
Nocardia spp. are Gram-positive, aerobic, branching rods, commonly found in dust, soil and water. Nocardia belong to the order of Actinomycetales, suborder Corynebacteriaceae and family Nocardiaceae. Common Nocardia species are N. asteroides sensu stricto, N. farcinica, N. nova, N. cyriacigeorgica and N. brasiliensis.
Nocardiosis *
Published in Lourdes R. Laraya-Cuasay, Walter T. Hughes, Interstitial Lung Diseases in Children, 2019
The Nocardiaceae family includes aerobic actinomycetes which are bacteria-like organisms with a propensity for filamentous growth and true branching similar to fungi. Nocardia asteroides is the species most frequently implicated in human nocardiosis. Less frequently encountered species are N. brasiliensis, N. caviae, and N. farcinica.
Circulating microbiome in patients with portal hypertension
Published in Gut Microbes, 2022
Rolandas Gedgaudas, Jasmohan S Bajaj, Jurgita Skieceviciene, Greta Varkalaite, Gabija Jurkeviciute, Sigita Gelman, Irena Valantiene, Romanas Zykus, Andrius Pranculis, Corinna Bang, Andre Franke, Christoph Schramm, Juozas Kupcinskas
Bacterial community clustering between patients with cirrhosis and healthy controls could be explained by the significant differences in the circulating microbiome composition. Compared to the controls, patients with cirrhosis showed an increase in the relative abundance of Enterobacteriaceae, Methylococcaceae, and Prevotellaceae and a decline in abundance of members of the families Burkholderiaceae, Cytophagaceae, Comamonadaceae, Coriobacteriaceae, Nocardiaceae, and Pseudomonadaceae. At the genus level, patients with cirrhosis had higher relative levels of Cnuella, Comamonas, Dialister, Escherichia/Shigella, and Prevotella and lower levels of Bradyrhizobium, Curvibacter, Diaphorobacter, Pseudarcicella, and Pseudomonas (Figures 1(d-e)). These results indicate a distinct circulating microbiome profile for patients with cirrhosis. Abundance levels of the differentially abundant genera in the peripheral veins of patients with cirrhosis and the controls are shown in Supplementary Figure S3.
Investigating the potential of fish oil as a nutraceutical in an animal model of early life stress
Published in Nutritional Neuroscience, 2022
Sian Egerton, Francisco Donoso, Patrick Fitzgerald, Snehal Gite, Fiona Fouhy, Jason Whooley, Ted G. Dinan, John F. Cryan, Sarah C. Culloty, R. Paul Ross, Catherine Stanton
The dominant families in all the experimental groups were Lachnospiraceae, Bacteroidales S24-7 group, Ruminococcaceae and Bacteroidaceae (Figure 5(d)). MS-Con animals had lower relative abundances for many microbial families compared to NS-Con animals. These differences were found to be statistically significant for Micrococcaceae, Caldicoprobacteraceae, Christensenellaceae and Streptococcaceae. Administration of fluoxetine on its own increased the relative abundance of these families, however, the levels were still statistically lower than those found in samples from NS-Con animals. Supplementation with fish oil did not cause the same widespread increases. However, the family Nocardiaceae was at a significantly higher relative abundance in the two fish oil treated groups compared to the MS-Con group, while Prevotellaceae was also at a notably higher level and this difference was statistically significant for the MS-FLX-FO group.
The gut microbiota during the progression of atherosclerosis in the perimenopausal period shows specific compositional changes and significant correlations with circulating lipid metabolites
Published in Gut Microbes, 2021
Qinghai Meng, Menghua Ma, Weiwei Zhang, Yunhui Bi, Peng Cheng, Xichao Yu, Yu Fu, Ying Chao, Tingting Ji, Jun Li, Qi Chen, Qichun Zhang, Yu Li, Jinjun Shan, Huimin Bian
At the family level, most kinds of CE were significantly positively correlated with Streptococcaceae, Enterobacteriaceae, Leuconostocaceae, Aerococaceae, Nocardiaceae, Moraxellaceae, Staphylococcaceae, Bacillaceae, Peptostreptococcaceae, Dermacoccaceae, Carnobacteriaceae and Bradyrhizobiaceae, whereas negatively correlated with Bifidobacteriaceae. Some TG were positively correlated with Enterobacteriaceae and negatively correlated with Enterococcaceae, but the remaining showed negative correlation. Almost all kinds of phospholipids were significantly positively correlated with Streptococcaceae, Enterococcaceae, Aerococaceae, Leuconostocaceae, Bacillaceae, Peptostreptococcaceae, Dermacoccaceae, Microbacteriaceae, Carnobacteriaceae, Pseudomonadaceae, Bradyrhizobiaceae and Mycobacteriaceae, and negatively correlated with Erysipelotrichaceae. The other types of lipids (including free fatty acids, acylcarnitine, sphingomyelins and ceramides) showed significant positive correlations with Rhizobiaceae, Moraxellaceae, Staphylococcaceae, Enterobacteriaceae, Nocardiaceae, Aerococaceae, Streptococcaceae, Enterococcaceae, Carnobacteriaceae, Bradyrhizobiaceae, Leuconostocaceae, Microbacteriaceae, Bacillaceae, Peptostreptococcaceae and Dermacoccaceae (Figure 12).