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Food Preparation Effects on Gut Bacteria in Patients on Peritoneal Dialysis

Effect of a Low AGE Diet on Human Microbiome

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02467530
Enrollment
103
Registered
2015-06-10
Start date
2015-01-31
Completion date
2015-12-31
Last updated
2017-01-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

End Stage Renal Disease (ESRD)

Keywords

end stage renal disease, peritoneal dialysis (PD), advanced glycation end products, Gut Microbiota Inflammation

Brief summary

This is an intervention study of the effects of food preparation on the gut bacteria in patients with end stage renal disease on peritoneal dialysis. This is a dietary intervention consistent of consuming low amounts of advanced glycation end products (AGEs), the products of protein and sugar interaction during food processing and preparation using high direct heat.

Detailed description

Gut microbes can influence numerous aspects of human biology. Alterations in the function and composition of gut microbial flora (gut microbiota) have been linked to different diseases such as obesity, diabetes and inflammation. Advanced Glycation End products (AGEs) are formed via the Maillard reaction, which consists of a complex network of non-enzymatic reactions involving the carbonyl groups of reducing sugars which react with the amino groups of proteins. AGEs are produced in vivo and being consumed. They have been implicated in increased risk of different diseases including atherosclerosis, CAD and kidney diseases. In this study, the investigators are evaluating the effects of consuming a low AGE diet in participants on peritoneal dialysis on the gut bacteria and inflammation.

Interventions

OTHERAGE

Sponsors

Icahn School of Medicine at Mount Sinai
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \> 18 years. * Patients with ESRD on PD. * Patients are able to understand and give consent. * Patients with estimated daily dietary AGE intake \> 12 AGE Eq/day (12,000 kiloUnits/day) based on 3-day food records.

Exclusion criteria

* Patient on antibiotics in the last three months. * Liver cirrhosis, and heart failure with EF \< 30%. * The use of chemotherapy, immunosuppressive medications, probiotics, and steroid in the last month. * Oral iron supplementation in the last month. * History of small or large intestine resection or small bowel obstruction

Design outcomes

Primary

MeasureTime frameDescription
Skin AGE levelbaseline and 1 monthChange in AGE levels in the skin at 1 month compared to baseline will be measure using an AGE reader.

Secondary

MeasureTime frameDescription
Serum p-cresol levelbaseline and 1 monthChange in serum p-cresol level at 1 month compared to baseline
Serum creatinine levelbaseline and 1 monthChange in serum creatinine level at 1 month compared to baseline
Serum AGE levelbaseline and 1 monthChange in serum AGE level at 1 month compared to baseline
Serum IL-2 levelbaseline and 1 monthChange in serum IL-2 level at 1 month compared to baseline
Serum blood urea nitrogen (BUN)baseline and 1 monthChange in serum BUN at 1 month compared to baseline
Serum IL-10baseline and 1 monthChange in serum IL-10 level at 1 month compared to baseline
Serum indoxyl sulfatebaseline and 1 monthChange in serum indoxyl sulfate level at 1 month compared to baseline
Serum vitamin Dbaseline and 1 monthChange in serum vitamin D level at 1 month compared to baseline
Serum CRPbaseline and 1 monthChange in serum CRP level at 1 month compared to baseline

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026