Summary of Study ST002707
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 PR001678. The data can be accessed directly via it's Project DOI: 10.21228/M8T146 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 | ST002707 |
| Study Title | Levels of T3 (triiodothyronine) and T4 (thyroxine) in CSF (cerebrospinal fluid) and plasma as part of natural diurnal variation |
| Study Summary | This study employs targeted LC-MS analysis of CSF and plasma to assess relative changes in the levels of thyroid hormone (T3: triiodothyronine and T4: thyroxine) at two time points in the diurnal cycle. For this purpose, wild-type CD1 mice were kept in a circadian cabinet housing with 12-hour light cycle (7 a.m. on/ 7 p.m. off) and tissues were collected consistently at an a.m and a p.m time point (9 a.m. and 9 p.m). CSF was collected from adult (3 months old). Internal standards (13C-labelled T3 and T4) as well as calibration curves were used to estimate the respective T3 and T4 concentration in the examined biofluids. |
| Institute | Boston Children's Hospital, Harvard Medical School |
| Laboratory | Kanarek Lab |
| Last Name | Petrova |
| First Name | Boryana |
| Address | Enders 1116.2 300 Longwood Ave |
| Boryana.Petrova@childrens.harvard.edu | |
| Phone | 6179197352 |
| Submit Date | 2023-05-15 |
| Num Groups | 2 |
| Total Subjects | 27 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | raw(Thermo) |
| Analysis Type Detail | LC-MS |
| Release Date | 2023-05-28 |
| Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Combined analysis:
| Analysis ID | AN004389 |
|---|---|
| Analysis type | MS |
| Chromatography type | Reversed phase |
| Chromatography system | Thermo Vanquish |
| Column | Ascentis Express C18 (150 x 2.1mm,2.7um) |
| MS Type | ESI |
| MS instrument type | Orbitrap |
| MS instrument name | Thermo Q Exactive Plus Orbitrap |
| Ion Mode | POSITIVE |
| Units | nM |
MS:
| MS ID: | MS004138 |
| Analysis ID: | AN004389 |
| Instrument Name: | Thermo Q Exactive Plus Orbitrap |
| Instrument Type: | Orbitrap |
| MS Type: | ESI |
| MS Comments: | MS data acquisition was performed using a QExactive benchtop orbitrap mass spectrometer equipped with an Ion Max source and a HESI II probe (Thermo Fisher Scientific, San Jose, CA) and was performed at a narrow scan in positive mode (m/z = 600-800) for more specific detection of thyroxine hormones, the resolution was set at 70,000, the AGC target was 5x105, and the max IT was 100 msec. HESI conditions were: Sheath gas flow rate: 40; Aug gas flow rate: 10; Sweet gas flow rate: 0; Spray voltage: 3.5kV (pos), 2.8kV (neg); Capillary temperature: 380ºC; S-lens RF: 60; Aux gas heater temperature: 420 ºC. |
| Ion Mode: | POSITIVE |
