Sample Kits for Intestinal Metabolome Analysis .
Metabolome refers to the totality of metabolites in a functional unit or organ, such as the intestine.
The metabolites in stool samples basically represent the biochemical processes occurring in the intestine. It is quite likely that the signatures from metabolome profiles are closely related to human health, well-being and also pathological processes.
OMNImet®-GUT (ME-200) is a kit for the easy collection of fecal samples for metabolome studies. The samples are instantly homogenized and stabilized such that they can be stored at room temperature.
Hard Facts .
- Easy self-sampling at home
- Metabolome profile is stable at room temperature for 7 days
- Optimized for metabolome-wide analyses
- Only one sample needed for all metabolomic assays
- Very high reproducibility due to point-of-collection sample homogenization
- Easy to automate, suitable for high throughput processing
- Compatible with all popular analysis platforms
Applications .
Short-chain fatty acids (SCFAs) are key mediators of microbial activity in the gut. They play an important role in regulating the immune system, maintaining the epithelial barrier of the gut, and preventing diseases such as metabolic syndrome, inflammatory bowel disease, and certain types of cancer.
De Bruin, O. M., Freinkman, E., Breton, H., Evans, A. M., Miller, L. A. D., Nguyen, U., Adam, K.-P., & Doukhanine, E. (2020). OMNImetTM-GUTenables at-home collection and ambient temperature transport of fecal samples for metabolomics. DNA Genotek https://www.dnagenotek.com/ROW/pdf/PD-WP-00066.pdf
Metabolites play an important role in the communication and dynamics between the gut microbiome and the host. Metabolomics is therefore a particularly powerful tool for analyzing and elucidating the functions of the gut microbiome in diseases such as obesity, insulin resistance, heart disease, and Parkinson’s disease.
The OMNImet™-GUT ME-200 kit provides a solution to stabilize metabolome profiles without interfering with subsequent analyses on LC/MS platforms.
De Bruin, O. M., Freinkman, E., Breton, H., Evans, A. M., Miller, L. A. D., Nguyen, U., Adam, K.-P., & Doukhanine, E. (2020). OMNImetTM-GUTenables at-home collection and ambient temperature transport of fecal samples for metabolomics. DNA Genotek https://www.dnagenotek.com/ROW/pdf/PD-WP-00066.pdf
OMNImet GUT ME-200 .
Product overview .
Attribute | OMNImet GUT (ME-200) |
---|---|
Fecal sample collected per kit (median) [1] | 520 ± 101 mg |
Metabolomic profile stability at room temperature [2] | 7 days |
Validated for untargeted discovery metabolomics [2] | ✔ |
Validated for both targeted quantification of short-chain fatty acids (SCFAs) [2] | ✔ |
Preserve metabolites integrity through one freeze-thaw cycle [2] | -20ºC to +30ºC |
Compatible with common analytical platforms | ✔ |
Suitable for long-term storage and biobanking | ✔ |
Bar coded for full sample traceability (128C) | ✔ |
[2] DNA Genotek, validation done by Metabolon® (OMNImet™•GUT enables at-home collection and ambient temperature transport of fecal samples for metabolomics. PD-WP-00066)
Features .
The OMNImet-GUT ME-200 kit allows donors to conveniently collect stool specimens in the privacy of their home. ME-200’s effective stabilization chemistry eliminates logistical challenges commonly associated with metabolomics collection methods.
Advantages .
- Optimized for metabolome-wide screening and targeted assays (including SCAF)
- Targeted as well as non-targeted metabolomic assays possible from a collection tube
- Standardized sample processing guarantees high reproducibility and efficient workflow
- Suitable for automated high-throughput analysis platforms
- Tube with barcode for reliable traceability
- Stabilization chemistry optimized for long-term storage and biobanking
Short-chain fatty acids (SCFAs) are stable in OMNImet GUT for at least 7 days at room temperature .
Short-chain fatty acids (SCFAs) are key mediators of microbial activity in the gut and play an important role in regulating the immune system, maintaining the intestinal epithelial barrier, and preventing diseases such as metabolic syndrome, inflammatory bowel disease, and certain types of cancer. Therefore, we investigated the performance of OMNImet-GUT in stabilizing SCFAs at room temperature. For this purpose, a pooled stool sample from 7 donors was stored at room temperature for different lengths of time in OMNImet-GUT and in a non-stabilized condition (cryoflask), followed by targeted quantitative analysis of eight SCFAs.
Aliquots of a pooled raw stool sample from 7 donors were either left unstabilized (n=4 replicates) or stored in OMNImet-GUT (ME-200) (n=4 replicates, A/B/C/D) at room temperature for the indicated number of days (T0 to T13), followed by quantification of eight short-chain fatty acids (SCFAs) by targeted LC-MS/MS.
From: De Bruin, O. M., Freinkman, E., Breton, H., Evans, A. M., Miller, L. A. D., Nguyen, U., Adam, K.-P., & Doukhanine, E. (2020). OMNImetTM-GUT enables at-home collection and ambient temperature transport of fecal samples for metabolomics. DNA Genotek. https://www.dnagenotek.com/ROW/pdf/PD-WP-00066.pdf
Accurate measurement of individual metabolites and metabolic pathways .
OMNImet-GUT preserves the vast majority of metabolites in fresh stool samples with high reliability and stability.
Correlation analysis across n=7 biological replicates (after averaging the n=3 technical replicates from each donor) in each OMNImet-GUT storage condition (baseline(T0), room temperature for 1, 4, or 7 days (T1, T4, T7), or freeze-thaw cycles) compared with flash-frozen (FF). The median Spearman coefficient for each major class of biochemicals (metabolic superpathway) is plotted and the number of biochemicals in each superpathway (detected in frozen samples) is labeled.
From: De Bruin, O. M., Freinkman, E., Breton, H., Evans, A. M., Miller, L. A. D., Nguyen, U., Adam, K.-P., & Doukhanine, E. (2020). OMNImetTM-GUT enables at-home collection and ambient temperature transport of fecal samples for metabolomics. DNA Genotek. https://www.dnagenotek.com/ROW/pdf/PD-WP-00066.pdf
Metabolomics and the Microbiome Revolution: Critical Innovations to Unlock Gut Microbial Function in Human Health .
Héloïse Breton, Ph.D.. | Product Manager, Microbiome, DNA Genotek
Lisa Freinkman, Ph.D. | Staff Scientist, Metabolon
Special Guest:
Suchitra Hourigan, MD | Vice Chair of Research, Inova Children’s Hospital
Thomas Schmidt, Ph.D | Professor, University of Michigan
In this webinar, we will explore how metabolomics can provide a critical understanding of the function of the gut microbiome in vivo enables and how recent technological innovations are helping to overcome cold chain requirements and other challenges associated with the collection, storage, and transport of human fecal metabolome samples. Join us for this dynamic panel discussion where our speakers will share their experiences on the following topics:
- Novel and actionable functional insights in microbiome research.
- New breakthrough technology for home collection of human stool samples for metabolomics
- Real-world case studies of metabolomics in clinical microbiome research.