Gut Microbiota Post Roux-en-Y Gastric Bypass Surgery
The Gut Microbiota in Patients Post Roux-en-Y Gastric Bypass Surgery
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
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North Dakota
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Fargo, North Dakota, Forenede Stater, 58103
- North Dakota State University/Sanford Health
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Female
- Age 18-65
- 3-5 years post Roux-en-Y gastric bypass and experienced successful weight loss following surgery (up to n=10) or
- 3-5 years post Roux-en-Y gastric bypass and did not experience optimal weight loss following surgery (up to n=10) or
- Nonsurgical control participants who are approximately matched in sex, age, and BMI to the optimal weight loss group (up to n=10).
Exclusion Criteria:
- Tobacco use in past three months.
- Taking a medication which is known to significantly influence gastrointestinal transit time or affect the microbiome or other variables significantly (as determined by study pharmacist/MD).
- History of diabetes mellitus.
- Has taken an oral or IV/IM antibiotic in the past 3 months.
- Has taken probiotic and/or prebiotic agent in the past 3 months
- History of significant intestinal disease or disorder (e.g., Crohn's disease, ulcerative colitis, irritable bowel syndrome)
- History of gastrointestinal surgery that may impact measures of biological variables, as determined by the investigator.
- Medical condition expected to impact the biological variables of interest or interfere with providing a sample, as determined by the investigator.
- Unable to speak/read English.
- Breastfeeding, pregnant, or planning to become pregnant within the duration of the study.
- Unwilling to use a medically acceptable form of contraception.
- History of bipolar or psychotic spectrum disorder or alcohol or substance treatment in the past year
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Group 1 (Successful weight loss)
3-5 years post Roux-en-Y gastric bypass patients who had successful weight loss
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Participants will receive a liquid nutritional supplement.
Before and after administration, biological variables of interest will be collected.
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Group 2 (Suboptimal weight loss)
3-5 years post Roux-en-Y gastric bypass patients who had suboptimal weight loss
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Participants will receive a liquid nutritional supplement.
Before and after administration, biological variables of interest will be collected.
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Group 3 (Control group)
A control group who has not had Roux-en-Y gastric bypass surgery and are of similar age, gender, body mass index as the gastric bypass groups.
|
Participants will receive a liquid nutritional supplement.
Before and after administration, biological variables of interest will be collected.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Intestinal Microbiome Composition. The ratio of firmicutes to bacteroidetes will be the primary focus of the microbiome evaluation.
Tidsramme: 3-5 years post RYGB
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3-5 years post RYGB
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Plasma levels of cholic acid, chenodeoxy cholic acids, deoxycholic acid, and lithocholic acid will be measured by LCMS and will be compared between successful weight loss and poor weight loss post-RYGB and control groups.
Tidsramme: 3-5 years post RYGB
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3-5 years post RYGB
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Plasma levels of GLP-1, GLP-2, and PYY will be measured by ELISA and will be compared between successful weight loss and poor weight loss post-RYGB and control groups.
Tidsramme: 3-5 years post RYGB
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3-5 years post RYGB
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|
Plasma levels of Lipopolysaccharide (LPS) will be measured by the Limulus Amebocyte Lysate (LAL) assay and will be compared between successful weight loss and poor weigh loss post-RYGB and control groups.
Tidsramme: 3-5 years post RYGB
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3-5 years post RYGB
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Kristine Steffen, PharmD.,Ph.D, North Dakota State University
Publikationer og nyttige links
Generelle publikationer
- Ogden CL, Carroll MD, Kit BK, Flegal KM. Prevalence of childhood and adult obesity in the United States, 2011-2012. JAMA. 2014 Feb 26;311(8):806-14. doi: 10.1001/jama.2014.732.
- Fouladi F, Brooks AE, Fodor AA, Carroll IM, Bulik-Sullivan EC, Tsilimigras MCB, Sioda M, Steffen KJ. The Role of the Gut Microbiota in Sustained Weight Loss Following Roux-en-Y Gastric Bypass Surgery. Obes Surg. 2019 Apr;29(4):1259-1267. doi: 10.1007/s11695-018-03653-y.
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- IRB-201509-061
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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