Hemodialysis and Wanting for Protein-rich Foods

A study conducted in the laboratory revealed the existence of a "window" during which patients with renal failure appreciate the protein-rich foods. This period, located immediately after the dialysis, is likely related to the purification of plasma products resulting from protein catabolism. It therefore appears necessary to understand the mechanisms that may explain these changes by measurements of ghrelin (orexigenic hormone), leptin (anorectic hormone) and plasma amino acids.

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Key information

Conditions

Renal Failure Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Kidney Diseases Male Urogenital Diseases Renal Insufficiency Urogenital Diseases Urologic Diseases

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Centre des Sciences du Goût

Dijon, Burgundy, 21000, France

About this study

In 24 patients with renal failure treated by hemodialysis, it is evaluated (at 8:00 am and at 11:00 am), a day without hemodialysis and another day after the hemodialysis:

Hunger sensation,
Olfactory liking assessed separately for 6 foods (2 carbohydrate-, 2 fat- and 2 protein-rich foods) and 2 non-alimentary products,
Food wanting evaluated by the sequential presentation of 18 images of food (6 fat-, 6 carbohydrate- and 6 protein-rich foods),
Two blood samples for the assays of leptin, ghrelin, creatinine, albumin and pre-albumin as well as plasma amino acids.

24 healthy subjects are also evaluated in order to compare the results from patients to those of control subjects.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients and healthy subjects were included if they were aged between 18 and 80 years

Exclusion criteria

diabetes, advanced undernutrition (BMI < 17.5 kg m-2, prealbumin < 250 mg.L-1), congestive heart failure, acute or chronic infection, ongoing antibiotic treatment, active cancer, liver cirrhosis, smoking (more than 5 cigarettes/day), alcohol consumption (more than 3 units/day), aversion to the foods eaten or smelt during the study, impaired comprehension of the cognitive tasks

Treatment and study plan

Primary outcomes

Amount of wanting for protein-rich foods

Time frame: 20 min (from 8:00 to 8:20 am) and 20 min (from 11:00 to 11:20 am)

The wanting is determined after the successive presentation (for ten seconds) of 18 pictures of food. For each food the question is "at the present time, do you want to eat this food? ". For each photo, subjects place a vertical line on a 10 cm horizontal line bounded at its ends by "no desire" and "extremely envy" (visual analog scale).The wanting for proteins is the mean score for the desire to eat protein-rich foods.

Secondary outcomes

Concentrations of the plasma amino-acids

Time frame: 8:30 am and 11:30 am

Variation in concentrations of amino-acids during the morning a day with hemodialysis and a day without hemodialysis, and comparison with plasma AAs from healthy subjects

Sponsors and collaborators

Lead sponsor

University of Burgundy

Other

Registry information

Official study title

Influence of Chronic Renal Failure and Hemodialysis on Liking and Wanting for Foods

Important dates

Study start: 2014
Primary completion: 2014
Study completion: 2014
First posted: Aug 20, 2014
Registry last updated: Aug 20, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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