Figure 1.
Experimental study design. Fecal samples collected from participants of two different cohorts were included in the present study. In total, 745 samples were isolated using two different DNA extraction kits: AllPrep DNA/RNA Mini Kit and QIAamp Fast DNA Stool Mini Kit (QIAGEN, Germany). After measuring DNA concentration and quality, extracted samples underwent library preparation and sequencing using the same technology (Illumina Hiseq 2000) at two different sequencing facilities. Finally, microbiome profiling and statistical analysis of sequencing data was performed.