Summary of Study ST000550

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 PR000403. The data can be accessed directly via it's Project DOI: 10.21228/M8ZG6P This work is supported by NIH grant, U2C- DK119886.

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Study IDST000550
Study TitleMetabolomics marker of brown adipose tissue in men
Study SummaryObjective: We aimed to identify metabolites in serum that are associated with BAT volume and activity in men. Methods: We assessed 163 metabolites in fasted serum of a cohort of twenty two healthy lean men (age 24.1 (21.7 – 26.6) years, BMI 22.1 (20.5 – 23.4) kg/m2) who subsequently underwent a cold-induced [18F]FDG PET-CT scan to assess BAT volume and activity. In addition, we included three replication cohorts consisting of in total thirty-seven healthy lean men that were similar with respect to age and BMI compared to the discovery cohort.
Institute
Leiden University Medical Center
Last NameMook-Kanamori
First NameDennis
AddressPO Box 9600, 2300 RC, Leiden, the Netherlands
Emaild.o.mook@lumc.nl
Phone+31715265623
Submit Date2017-01-31
Num Groups5
Total Subjects59
Num Males59
Analysis Type DetailLC-MS
Release Date2017-07-10
Release Version1
Dennis Mook-Kanamori Dennis Mook-Kanamori
https://dx.doi.org/10.21228/M8ZG6P
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Project:

Project ID:PR000403
Project DOI:doi: 10.21228/M8ZG6P
Project Title:Metabolomics marker of brown adipose tissue in men
Project Summary:We assessed a MS platform of 163 marker (Biocrates p150 kit) to find markers for brown adipose tissue.
Institute:Leiden University Medical Center
Last Name:Mook-Kanamori
First Name:Dennis
Address:PO Box 9600, 2300 RC, Leiden, the Netherlands
Email:d.o.mook@lumc.nl
Phone:+31 71 5265623

Subject:

Subject ID:SU000572
Subject Type:Healthy males
Subject Species:Homo sapiens
Taxonomy ID:9606
Age Or Age Range:20-30
Gender:Men
Human Ethnicity:Caucasian and south asian
Species Group:Human

Factors:

Subject type: Healthy males; Subject species: Homo sapiens (Factor headings shown in green)

mb_sample_id local_sample_id SampleType
SA028474182Serum
SA028475181Serum
SA028476192Serum
SA028477511Serum
SA028478512Serum
SA028479172Serum
SA028480510Serum
SA028481171Serum
SA028482141Serum
SA028483131Serum
SA028484151Serum
SA028485152Serum
SA028486162Serum
SA028487513Serum
SA028488515Serum
SA0284891141Serum
SA0284901122Serum
SA0284911142Serum
SA0284921151Serum
SA0284931201Serum
SA0284941192Serum
SA0284951112Serum
SA0284961111Serum
SA028497516Serum
SA028498121Serum
SA028499517Serum
SA028500518Serum
SA028501519Serum
SA028502514Serum
SA028503112Serum
SA02850411Serum
SA02850510Serum
SA02850613Serum
SA02850714Serum
SA02850816Serum
SA02850915Serum
SA0285109Serum
SA0285118Serum
SA0285123Serum
SA0285132Serum
SA0285144Serum
SA0285155Serum
SA0285166Serum
SA02851717Serum
SA02851818Serum
SA02851954Serum
SA02852053Serum
SA02852156Serum
SA02852258Serum
SA028523111Serum
SA02852459Serum
SA02852552Serum
SA02852624Serum
SA02852720Serum
SA02852819Serum
SA02852921Serum
SA02853022Serum
SA02853123Serum
SA0285321Serum
Showing results 1 to 59 of 59

Collection:

Collection ID:CO000566
Collection Summary:METHODS Study population discovery cohort Our discovery cohort consisted of twenty-four healthy male Caucasian (n=12) and South Asian (n=12) participants from a study that was performed previously in the Alrijne hospital (Leiderdorp, the Netherlands) between March and June 2013 (Bakker et al. 2014). This study was powered on the identification of a difference in BAT volume, resulting in inclusion of twelve subjects per group. Subjects were lean (BMI <25 kg/m2) and healthy males aged 18-30 years that were enrolled via local advertisements. Subjects underwent a medical screening including their medical history, a physical examination, blood chemistry tests, and an oral glucose tolerance test (OGTT) to exclude individuals with T2DM according to the American Diabetes Association (ADA) 2010 criteria. Other exclusion criteria were rigorous exercise, smoking, and recent body weight change. Data from two individuals were removed from the analyses due to virtually absent BAT volume (0-1 cm3) as assessed by [18F]FDG PET-CT, leaving twenty-two participants. The present study was approved by the Medical Ethical Committee of the Leiden University Medical Center and performed in accordance with the principles of the revised Declaration of Helsinki. All volunteers gave written informed consent before participation. Study population replication cohorts To verify whether the associations were sufficiently robust, we included three replication cohorts consisting of in total forty-two healthy Caucasian men. These participants were derived from three studies performed at the Maastricht University Medical Centre (Maastricht, the Netherlands) between 2011 and 2014 (Vosselman et al. 2012; Vosselman et al. 2013; Vosselman et al. 2015). In the first study (Vosselman et al. 2015), aimed at studying the effect of exercise on BAT volume and activity, twelve healthy lean endurance-trained and twelve lean sedentary male Caucasian men aged 18–35 years were included. Endurance-trained athletes were included in the trained group when they performed endurance exercise at least three times a week for the last 2 years, and had a maximal oxygen consumption (VO2max) of >55 ml/min/kg. The sedentary males were included in the untrained group if they did not perform more than 1 h of exercise per week for the last 2 years and had a VO2max of <45 ml/min/kg. General exclusion criteria were use of medication, smoking, weight gain/loss of >3 kg in the last 6 months, hypertension and (family history of) diabetes. The trained men were included in replication cohort 1 and the untrained men in replication cohort 2. Replication cohort 3 consisted of subjects derived from two studies (Vosselman et al. 2012; Vosselman et al. 2013) that had the same inclusion criteria and cooling protocol. These studies aimed at studying the effect of β-adrenergic stimulation on BAT (Vosselman et al. 2012) and the effect of a high-calorie meal on BAT (Vosselman et al. 2013). In these studies, in total 19 healthy male Caucasian subjects aged between 18-35 years were enrolled. All subjects were screened for medical history. Cardiovascular status was screened by means of an electrocardiogram and blood pressure measurement. All subjects had normal blood glucose levels. In the replication cohorts, data from five participants were removed due to absence of [18F]FDG uptake in the BAT region, leaving thirty-seven participants in the replication set. For the pooled analyses, fifty-nine participants were included in the analyses. All replication studies were approved by the medical ethical committee of the Maastricht University Medical Center and all subjects were treated according to the principles of the revised declaration of Helsinki. Study set-up discovery cohort Individuals were studied in the morning after a 10-h overnight fast and after 24h without exercise. Subsequently, they were exposed to a thermoneutral temperature (32 C) for 60 min, after which a basal blood serum sample was taken in which also metabolomics measurements were performed (see below). To activate BAT an individualized cooling protocol was applied. In short, subjects lay on a bed sandwiched between two water-perfused cooling mattresses (Blanketrol III, Cincinnati Sub-Zero Products, Cincinnati, OH, USA). Cooling started at 32°C and temperature was gradually decreased until shivering occurred (approximately after 50-60 min). Temperature was then raised by 3–4°C and the cooling period of 2 h was started (defined as tcold = 0 min). If shivering occurred, the temperature was raised by 1°C until shivering stopped. We detected shivering visually or it was reported by participants. After 1 h of cooling (tcold=60 min), 2 MBq/kg [¹ F]FDG was injected intravenously and subjects were instructed to lay still in order to prevent artifact by muscle activity. At tcold = 110 min, a cold-induced blood sample was taken in which metabolomics measurements were performed as well. After 2 h of cooling (tcold=120 min) the PET-CT scan (Gemini TF PET-CT, Philips, The Netherlands) was performed to assess BAT volume and activity, as described previously (Bakker et al. 2014). We quantified BAT activity and detectable volume in the region of interest by autocontouring the BAT areas with a set threshold (SUV) of 2.0 g/mL using Hermes software (Hermes Hybrid Viewer, Hermes Medical Solutions, Sweden). Study set-up replication cohorts In all replication cohorts, subjects were studied in the morning after an overnight fast and after 24 h without exercise. All experiments started with 1-h baseline measurements during thermoneutral conditions (24 to 25 C), after which a basal blood serum sample was taken in which also metabolomics measurements were performed (see below). Subsequently, subjects were exposed to 2 h of mild cold exposure in which an individualized protocol was used by means of air cooling using air-conditioning. In short, each subject was cooled down until shivering occurred (approximately after 20-60 min). After that, air temperature was slightly increased until shivering stopped. After 1 h of cold exposure the [18F]FDG tracer was injected intravenously (74 MBq in replication cohorts 1 and 2 and 50 MBq in replication cohort 3) and subjects were exposed to another hour of cold. Next, after 2 h of cooling, the PET-CT scan (Gemini TF PET-CT, Philips, the Netherlands) was performed to assess BAT volume and activity. In replication cohort 1 and 2, BAT activity and detectable volume were quantified in the region of interest by autocontouring the BAT areas with a set threshold (SUV) of 1.5 g/mL (Vosselman et al. 2015). In replication cohort 3 a threshold of 1.5 g/mL was used as well, and additionally the regions drawn were localized in fat tissues only as determined by CT scan (HU -10 to -180) (Vosselman et al. 2012). For all analyses, PMOD software (PMOD Technologies) was used.
Sample Type:Adipose tissue

Treatment:

Treatment ID:TR000586
Treatment Summary:N/A

Sample Preparation:

Sampleprep ID:SP000579
Sampleprep Summary:Targeted metabolomics Metabolomic measurements were performed on serum samples taken at thermoneutral and cold conditions at the Genome Analysis Center at the Helmholtz Zentrum, Munich, Germany, using the Biocrates AbsoluteIDQTM p150 kit (BIOCRATES Life Science AG, Innsbruck, Austria) and ESI-FIA-MS/MS measurements (Menni et al. 2013). The assay allows simultaneous quantification of 163 small molecule metabolites within 10 µL serum. The assay includes free carnitine, 40 acylcarnitines, 14 amino acids (13 proteinogenic + ornithine), hexoses (of which approx. 90-95% is glucose), 92 glycerophospholipids including 15 lysophosphatidylcholines (LysoPCs) and 77 phosphatidylcholines (PCs), and 15 sphingolipids (Menni et al. 2013; Illig et al. 2010). Quantification of the metabolites was achieved by reference to appropriate internal standards. The assay has been previously described (Menni et al. 2013; Illig et al. 2010).

Combined analysis:

Analysis ID AN000840
Analysis type MS
Chromatography type GC
Chromatography system Biocrates IDQ p150
Column Biocrates IDQ p150
MS Type Other
MS instrument type Triple quadrupole
MS instrument name Biocrates IDQ p150
Ion Mode NEGATIVE
Units mmol/L

Chromatography:

Chromatography ID:CH000600
Instrument Name:Biocrates IDQ p150
Column Name:Biocrates IDQ p150
Chromatography Type:GC

MS:

MS ID:MS000741
Analysis ID:AN000840
Instrument Name:Biocrates IDQ p150
Instrument Type:Triple quadrupole
MS Type:Other
Ion Mode:NEGATIVE
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