#METABOLOMICS WORKBENCH salvarez_20241022_084017 DATATRACK_ID:5302 STUDY_ID:ST003530 ANALYSIS_ID:AN005798 PROJECT_ID:PR002172
VERSION             	1
CREATED_ON             	October 24, 2024, 9:48 am
#PROJECT
PR:PROJECT_TITLE                 	Microbiome and metabolome association network analysis identifies
PR:PROJECT_TITLE                 	Clostridium_sensu_stricto_1 and Paraprevotella as putative keystone genera in
PR:PROJECT_TITLE                 	the gut of common marmosets
PR:PROJECT_SUMMARY               	The common marmoset (Callithrix jacchus), a nonhuman primate species, is a model
PR:PROJECT_SUMMARY               	organism that has garnered interest in recent years for its potential
PR:PROJECT_SUMMARY               	translational value in a variety of research settings including the field of
PR:PROJECT_SUMMARY               	microbiomics. While the composition of the marmoset’s gut microbiome has been
PR:PROJECT_SUMMARY               	described in captivity, little is known about how gut microbiota interact with
PR:PROJECT_SUMMARY               	each other over time and how they relate to metabolite productions. To help
PR:PROJECT_SUMMARY               	answer this, we characterized interactions in the gut microbiome of the common
PR:PROJECT_SUMMARY               	marmoset by calculating the Spearman correlation coefficient between 16S
PR:PROJECT_SUMMARY               	rDNA-derived relative genera abundance data and targeted metabolomics data
PR:PROJECT_SUMMARY               	collected longitudinally from 10 marmosets (6 males and 4 females). Association
PR:PROJECT_SUMMARY               	network graphs were used to visualize significant correlations and identify
PR:PROJECT_SUMMARY               	genera and metabolites that exhibit a high degree of associations, marking them
PR:PROJECT_SUMMARY               	as more influential within the microbiome. Clostridium_sensu_stricto_1, among
PR:PROJECT_SUMMARY               	the highest-degree genera for bacterial and metabololomic associations, also had
PR:PROJECT_SUMMARY               	a high relative betweenness centrality and negatively associated with
PR:PROJECT_SUMMARY               	high-degree Paraprevotella, indicating that it potentially plays a gatekeeping
PR:PROJECT_SUMMARY               	role within the bacteria-bacteria interaction and communication network.
PR:PROJECT_SUMMARY               	Corresponding metabolites with more numerous bacterial associations, including
PR:PROJECT_SUMMARY               	bile acids and taurine, are known regulators of bacterial growth that provide a
PR:PROJECT_SUMMARY               	potential mechanism through which Clostridium_sensu_stricto_1 and others exert
PR:PROJECT_SUMMARY               	their influence. To further characterize microbiome interactions, we performed
PR:PROJECT_SUMMARY               	hierarchical clustering on significant within-dataset associations and developed
PR:PROJECT_SUMMARY               	a new “Keystone Candidate Score” metric that identified
PR:PROJECT_SUMMARY               	Clostridium_sensu_stricto_1 and Paraprevotella as the most influential bacteria
PR:PROJECT_SUMMARY               	(so-called candidate keystone genera) in the marmoset gut microbiome.
PR:INSTITUTE                     	University of Nebraska-Lincoln
PR:LAST_NAME                     	Alvarez
PR:FIRST_NAME                    	Sophie
PR:ADDRESS                       	1901 Vine St
PR:EMAIL                         	salvarez@unl.edu
PR:PHONE                         	4024724575
#STUDY
ST:STUDY_TITLE                   	Microbiome and metabolome association network analysis identifies
ST:STUDY_TITLE                   	Clostridium_sensu_stricto_1 and Paraprevotella as putative keystone genera in
ST:STUDY_TITLE                   	the gut of common marmosets
ST:STUDY_SUMMARY                 	The common marmoset (Callithrix jacchus), a nonhuman primate species, is a model
ST:STUDY_SUMMARY                 	organism that has garnered interest in recent years for its potential
ST:STUDY_SUMMARY                 	translational value in a variety of research settings including the field of
ST:STUDY_SUMMARY                 	microbiomics. While the composition of the marmoset’s gut microbiome has been
ST:STUDY_SUMMARY                 	described in captivity, little is known about how gut microbiota interact with
ST:STUDY_SUMMARY                 	each other over time and how they relate to metabolite productions. To help
ST:STUDY_SUMMARY                 	answer this, we characterized interactions in the gut microbiome of the common
ST:STUDY_SUMMARY                 	marmoset by calculating the Spearman correlation coefficient between 16S
ST:STUDY_SUMMARY                 	rDNA-derived relative genera abundance data and targeted metabolomics data
ST:STUDY_SUMMARY                 	collected longitudinally from 10 marmosets (6 males and 4 females). Association
ST:STUDY_SUMMARY                 	network graphs were used to visualize significant correlations and identify
ST:STUDY_SUMMARY                 	genera and metabolites that exhibit a high degree of associations, marking them
ST:STUDY_SUMMARY                 	as more influential within the microbiome. Clostridium_sensu_stricto_1, among
ST:STUDY_SUMMARY                 	the highest-degree genera for bacterial and metabololomic associations, also had
ST:STUDY_SUMMARY                 	a high relative betweenness centrality and negatively associated with
ST:STUDY_SUMMARY                 	high-degree Paraprevotella, indicating that it potentially plays a gatekeeping
ST:STUDY_SUMMARY                 	role within the bacteria-bacteria interaction and communication network.
ST:STUDY_SUMMARY                 	Corresponding metabolites with more numerous bacterial associations, including
ST:STUDY_SUMMARY                 	bile acids and taurine, are known regulators of bacterial growth that provide a
ST:STUDY_SUMMARY                 	potential mechanism through which Clostridium_sensu_stricto_1 and others exert
ST:STUDY_SUMMARY                 	their influence. To further characterize microbiome interactions, we performed
ST:STUDY_SUMMARY                 	hierarchical clustering on significant within-dataset associations and developed
ST:STUDY_SUMMARY                 	a new “Keystone Candidate Score” metric that identified
ST:STUDY_SUMMARY                 	Clostridium_sensu_stricto_1 and Paraprevotella as the most influential bacteria
ST:STUDY_SUMMARY                 	(so-called candidate keystone genera) in the marmoset gut microbiome.
ST:INSTITUTE                     	University of Nebraska-Lincoln
ST:LAST_NAME                     	Alvarez
ST:FIRST_NAME                    	Sophie
ST:ADDRESS                       	2020 ryons st
ST:EMAIL                         	salvarez@unl.edu
ST:PHONE                         	4024724575
#SUBJECT
SU:SUBJECT_TYPE                  	Mammal
SU:SUBJECT_SPECIES               	Callithrix jacchus
SU:TAXONOMY_ID                   	9483
#SUBJECT_SAMPLE_FACTORS:         	SUBJECT(optional)[tab]SAMPLE[tab]FACTORS(NAME:VALUE pairs separated by |)[tab]Raw file names and additional sample data
SUBJECT_SAMPLE_FACTORS           	Dexter	643	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_643.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-643.mzML
SUBJECT_SAMPLE_FACTORS           	Dexter	671	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_671.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-671.mzML
SUBJECT_SAMPLE_FACTORS           	Dexter	745	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_745.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-745.mzML
SUBJECT_SAMPLE_FACTORS           	Dexter	915	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_915.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-915.mzML
SUBJECT_SAMPLE_FACTORS           	Hamlet	680	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_680.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-680.mzML
SUBJECT_SAMPLE_FACTORS           	Hamlet	940	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_940.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-940.mzML
SUBJECT_SAMPLE_FACTORS           	Hamlet	1028	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1028.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1028.mzML
SUBJECT_SAMPLE_FACTORS           	Hamlet	1075	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1075.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1075.mzML
SUBJECT_SAMPLE_FACTORS           	Indiana	1124	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1124.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1124.mzML
SUBJECT_SAMPLE_FACTORS           	Indiana	1161	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1161.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1161.mzML
SUBJECT_SAMPLE_FACTORS           	Indiana	1192	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1192.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1192.mzML
SUBJECT_SAMPLE_FACTORS           	Indiana	1223	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1223.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1223.mzML
SUBJECT_SAMPLE_FACTORS           	Izla	641	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_641.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-641.mzML
SUBJECT_SAMPLE_FACTORS           	Izla	676	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_676.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-676.mzML
SUBJECT_SAMPLE_FACTORS           	Izla	711	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_711.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-711.mzML
SUBJECT_SAMPLE_FACTORS           	Izla	920	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_920.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-920.mzML
SUBJECT_SAMPLE_FACTORS           	Joans	677	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_677.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-677.mzML
SUBJECT_SAMPLE_FACTORS           	Joans	748	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_748.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-748.mzML
SUBJECT_SAMPLE_FACTORS           	Joans	794	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_794.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-794.mzML
SUBJECT_SAMPLE_FACTORS           	Joans	958	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_958.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-958.mzML
SUBJECT_SAMPLE_FACTORS           	Leia	843	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_843.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-843.mzML
SUBJECT_SAMPLE_FACTORS           	Leia	1087	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1087.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1087.mzML
SUBJECT_SAMPLE_FACTORS           	Leia	1160	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1160.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1160.mzML
SUBJECT_SAMPLE_FACTORS           	Leia	1189	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1189.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1189.mzML
SUBJECT_SAMPLE_FACTORS           	Nikko	751	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_751.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-751.mzML
SUBJECT_SAMPLE_FACTORS           	Nikko	829	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_829.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-829.mzML
SUBJECT_SAMPLE_FACTORS           	Nikko	877	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_877.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-877.mzML
SUBJECT_SAMPLE_FACTORS           	Nikko	1024	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1024.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1024.mzML
SUBJECT_SAMPLE_FACTORS           	Quinoa	764	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_764.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-764.mzML
SUBJECT_SAMPLE_FACTORS           	Quinoa	816	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_816.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-816.mzML
SUBJECT_SAMPLE_FACTORS           	Quinoa	875	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_875.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-875.mzML
SUBJECT_SAMPLE_FACTORS           	Quinoa	1022	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1022.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1022.mzML
SUBJECT_SAMPLE_FACTORS           	Tank	640	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_640.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-640.mzML
SUBJECT_SAMPLE_FACTORS           	Tank	667	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_667.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-667.mzML
SUBJECT_SAMPLE_FACTORS           	Tank	716	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_716.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-716.mzML
SUBJECT_SAMPLE_FACTORS           	Tank	970	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_970.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-970.mzML
SUBJECT_SAMPLE_FACTORS           	Yoshi	790	Sample source:feces | Treatment:Control	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_790.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-790.mzML
SUBJECT_SAMPLE_FACTORS           	Yoshi	1026	Sample source:feces | Treatment:Pre	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1026.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1026.mzML
SUBJECT_SAMPLE_FACTORS           	Yoshi	1097	Sample source:feces | Treatment:Stress	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1097.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1097.mzML
SUBJECT_SAMPLE_FACTORS           	Yoshi	1140	Sample source:feces | Treatment:Post	RAW_FILE_NAME(Raw file name CDF)=20210623_SIM_SCFA_SH_1140.CDF; RAW_FILE_NAME(Raw file name mzML)=SH_samples_1ul_BA_20210215-1140.mzML
#COLLECTION
CO:COLLECTION_SUMMARY            	Fecal samples were collected from captive marmosets approximately 2 days before
CO:COLLECTION_SUMMARY            	the isolation challenge (Pre-Stress or Pre), 2 days into the challenge (Stress),
CO:COLLECTION_SUMMARY            	2 days after the end of the challenge (Post-Stress or Post), and 1 month
CO:COLLECTION_SUMMARY            	afterward (Control). A total of 40 fecal samples collected (4 time
CO:COLLECTION_SUMMARY            	points/marmoset × 10 marmosets) were used for metabolomics analysis. Collected
CO:COLLECTION_SUMMARY            	fecal samples were aliquoted and frozen before being stored at -80°C.
CO:SAMPLE_TYPE                   	Feces
#TREATMENT
TR:TREATMENT_SUMMARY             	The antibiotic regimen (vancomycin = 30 mg/kg, enrofloxacin = 10 mg/kg and
TR:TREATMENT_SUMMARY             	neomycin = 20 mg/kg) was administered orally using marshmallows and marshmallow
TR:TREATMENT_SUMMARY             	fluff once daily for 28 days. Fecal samples were collected from captive
TR:TREATMENT_SUMMARY             	marmosets approximately 2 days before the isolation challenge (Pre-Stress or
TR:TREATMENT_SUMMARY             	Pre), 2 days into the challenge (Stress), 2 days after the end of the challenge
TR:TREATMENT_SUMMARY             	(Post-Stress or Post), and 1 month afterward (Control).
#SAMPLEPREP
SP:SAMPLEPREP_SUMMARY            	For SCFAs, an aliquot of 50 mg of fecal sample was extracted using 0.5%
SP:SAMPLEPREP_SUMMARY            	phosphoric acid spiked with 83.7 µg of D3-acetate as the internal standard. The
SP:SAMPLEPREP_SUMMARY            	samples were disrupted and homogenized by adding 2 stainless steel beads (SSB
SP:SAMPLEPREP_SUMMARY            	32) using the TissueLyserII at 20 Hz for 2 min. The samples were additionally
SP:SAMPLEPREP_SUMMARY            	sonicated for 5 min. After centrifugation at 16,000 g for 10 min, the
SP:SAMPLEPREP_SUMMARY            	supernatants were transferred to a new tube. Butanol was added to the
SP:SAMPLEPREP_SUMMARY            	supernatant, and samples were extracted one more time using the TissueLyserII at
SP:SAMPLEPREP_SUMMARY            	2 Hz for 2 min. The samples were centrifuged at 16,000 g for 10 min and the
SP:SAMPLEPREP_SUMMARY            	upper phase was transferred to a new tube. For Bile Acids, an aliquot of 50 mg
SP:SAMPLEPREP_SUMMARY            	of fecal samples was extracted by adding 2 stainless steel beads (SSB 32) and
SP:SAMPLEPREP_SUMMARY            	chilled methanol:acetonitrile (1:1) solution using the TissueLyserII at 20 Hz
SP:SAMPLEPREP_SUMMARY            	for 3 min. The internal standard used is a mixture of several isotope labelled
SP:SAMPLEPREP_SUMMARY            	bile acids (D4-taurochenodeoxycholic acid; D4-taurocholic acid; D4-glycocholic
SP:SAMPLEPREP_SUMMARY            	acid; D4-glycochenodeoxycholic acid; D4-chenodeoxycholic acid; D4-deoxycholic
SP:SAMPLEPREP_SUMMARY            	acid). Samples were centrifuged at 4°C at 16,000 g for 10 min, and supernatants
SP:SAMPLEPREP_SUMMARY            	were transferred to new tubes. Samples were extracted the same way a second time
SP:SAMPLEPREP_SUMMARY            	with supernatants combined to the first one and then dried down using a SAVANT
SP:SAMPLEPREP_SUMMARY            	speed-vac. Pellets were resuspended using 30% methanol and transferred to HPLC
SP:SAMPLEPREP_SUMMARY            	vials.
#CHROMATOGRAPHY
CH:CHROMATOGRAPHY_SUMMARY        	for SCFAs
CH:CHROMATOGRAPHY_TYPE           	GC
CH:INSTRUMENT_NAME               	Agilent 7890B
CH:COLUMN_NAME                   	Agilent VF-WAXms (30m x 0.25mm, 0.25um)
CH:SOLVENT_A                     	none
CH:SOLVENT_B                     	none
CH:FLOW_GRADIENT                 	none
CH:FLOW_RATE                     	1.2 mL/min
CH:COLUMN_TEMPERATURE            	70
#ANALYSIS
AN:ANALYSIS_TYPE                 	MS
#MS
MS:INSTRUMENT_NAME               	Agilent 5977A
MS:INSTRUMENT_TYPE               	Single quadrupole
MS:MS_TYPE                       	EI
MS:ION_MODE                      	POSITIVE
MS:MS_COMMENTS                   	The acquisition was set up as a SIM (Single Ion Monitoring) scan method using
MS:MS_COMMENTS                   	selected ions to analyze the detectable SCFAs (D3-acetate, 46-63 ions; acetate,
MS:MS_COMMENTS                   	43-60 ions; propionate, 45-74 ions; butyric acid, 60-73 ions; isovaleric acid,
MS:MS_COMMENTS                   	60-74 ions; valeric acid, 60-73 ions). The data was acquired at a scan speed of
MS:MS_COMMENTS                   	3.125 u/s with a dwell time of 30 ms for each ion selected. The generated data
MS:MS_COMMENTS                   	was analyzed with Agilent Mass Hunter Quantitative Analysis. For quantification,
MS:MS_COMMENTS                   	an external standard curve was prepared using a series of standard samples
MS:MS_COMMENTS                   	containing different concentrations of SCFAs and fixed concentration of the
MS:MS_COMMENTS                   	internal standard.
#MS_METABOLITE_DATA
MS_METABOLITE_DATA:UNITS	concentration in mg/g wet feces
MS_METABOLITE_DATA_START
Samples	640	641	643	677	671	676	677	680	711	716	745	748	751	764	790	794	816	829	843	875	877	915	920	940	958	970	1022	1024	1026	1028	1075	1087	1097	1124	1140	1160	1161	1189	1192	1223
Factors	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Control	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Pre	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Stress	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Post	Sample source:feces | Treatment:Control
Acetic acid	2.47	3.04	6.59	2.94	3.13	2.35	4.17	3.30	3.69	2.89	4.11	2.89	3.00	3.99	2.41	3.25	3.60	3.03	3.99	2.37	3.23	2.40	3.25	2.30	3.01	2.71	3.73	4.09	2.65	2.72	2.37	1.91	3.56	2.54	3.04	2.83	3.27	1.53	2.66	2.76
Propionic acid	1.77	1.73	5.93	1.36	1.72	1.10	1.40	1.85	1.71	1.37	3.60	1.64	1.42	1.55	1.72	1.72	2.45	1.96	2.21	1.66	1.32	2.95	0.57	0.84	1.75	1.31	3.24	2.50	1.14	0.72	1.05	1.74	1.33	1.09	1.67	1.84	1.48	1.17	1.43	1.10
Butyric acid	1.71	1.68	2.46	0.65	0.97	0.27	0.49	1.19	1.60	0.98	1.45	0.98	1.00	0.46	1.24	1.10	0.85	0.86	1.10	0.72	0.69	0.81	0.74	0.40	0.79	0.58	0.64	2.24	0.54	0.64	0.48	0.45	1.59	0.82	1.05	0.88	1.25	0.38	1.03	1.19
Isovaleric acid	0.77	0.27	0.33	0.11	0.06	ND	0.07	0.14	ND	0.05	0.05	0.10	0.03	ND	0.08	0.02	0.02	0.06	ND	0.18	ND	0.15	ND	0.03	0.04	0.06	ND	0.08	0.04	ND	0.03	0.07	0.07	0.05	0.15	0.11	0.09	0.13	0.10	0.07
Valeric acid	1.75	1.50	1.83	0.11	0.20	0.06	0.10	0.10	ND	0.11	0.24	0.13	0.18	ND	0.15	0.07	ND	0.15	0.05	0.29	0.14	0.42	ND	0.05	0.06	0.08	ND	0.09	0.05	ND	0.05	0.10	0.05	0.18	0.17	0.30	0.31	0.21	0.35	0.26
MS_METABOLITE_DATA_END
#METABOLITES
METABOLITES_START
metabolite_name	SIM	Pubchem ID
Acetic acid	43-60	176
Propionic acid	45-74	1032
Butyric acid	60-73	264
Isovaleric acid	60-74	10430
Valeric acid	60-73	7991
METABOLITES_END
#END