Summary of Study ST002449
This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001064. The data can be accessed directly via it's Project DOI: 10.21228/M85H6W This work is supported by NIH grant, U2C- DK119886.
See: https://www.metabolomicsworkbench.org/about/howtocite.php
This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.
| Study ID | ST002449 |
| Study Title | Identify putative volatile biomarkers of Valley fever using a murine lung infection model (Human studies) |
| Study Type | Untargeted metabolomics |
| Study Summary | Coccidioides immitis and Coccidioides posadasii are soil-dwelling fungi of arid regions in North and South America that are responsible for Valley fever (coccidioidomycosis). Forty percent of patients with Valley fever exhibit symptoms ranging from mild, self-limiting respiratory infections, to severe, life-threatening pneumonia that requires treatment. Misdiagnosis as bacterial pneumonia commonly occurs in symptomatic Valley fever cases, resulting in inappropriate treatment with antibiotics, increased medical costs, and delay in diagnosis. In this study, we explored the feasibility of developing breath-based diagnostics for Valley fever using lung specimens from persons with community-acquired pneumonia (CAP). To investigate potential volatile biomarkers of Valley fever that arise from host-pathogen interactions, we collected bronchoalveolar lavage fluid (BALF) and sputum from patients treated at Mayo Clinic in Scottsdale, Arizona for untargeted volatile metabolomics via solid phase microextraction (SPME) and two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOFMS). We identified 244 total volatile organic compounds (VOCs). Using Random Forest, we identified a subset of these VOCs that were also able to separate Coccidioides positive samples from bacteria positive samples. The data presented here show that Coccidioides and/or the host produce volatile metabolites that may yield biomarkers for a Valley fever breath test that can detect Coccidioidal infection. |
| Institute | Arizona State University |
| Department | School of Life Sciences |
| Laboratory | Bean Laboratory |
| Last Name | Bean |
| First Name | Heather |
| Address | PO Box 874501 |
| Heather.D.Bean@asu.edu | |
| Phone | 4807273395 |
| Submit Date | 2022-12-17 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | smp |
| Analysis Type Detail | GC-MS |
| Release Date | 2024-01-31 |
| Release Version | 1 |
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Collection:
| Collection ID: | CO002531 |
| Collection Summary: | Human lung specimens were collected and stored in -80'C at Mayo Clinic in Scottsdale, Arizona until they were transferred to Arizona State University for VOCs analysis |
| Sample Type: | Bronchoalveolar lavage |
