Altered subjective appetite parameters in Crohn's disease patients

Area of Science:

• Gastroenterology
• Human Physiology
• Clinical Nutrition

Background:

• Crohn's disease (CD) is associated with altered appetite and early satiety, potentially leading to anorexia.
• Understanding the impact of disease activity on appetite is crucial for managing CD-related malnutrition.

Purpose of the Study:

• To investigate the relationship between Crohn's disease activity and subjective appetite parameters.
• To assess differences in hunger, desire to eat, fullness, and satiety between active CD patients, inactive CD patients, and healthy controls.

Main Methods:

• Seventeen CD patients and 15 healthy controls were assessed using visual analogue scales for appetite.
• Subjects rated hunger, desire to eat, fullness, and satiety after fasting and water ingestion (500/1000 ml).
• Serum leptin, TNF-alpha, body fat percentage, and disease activity (Harvey-Bradshaw index) were measured.

Main Results:

• Active CD patients reported significantly lower hunger and desire to eat at baseline compared to controls.
• Desire to eat remained significantly lower in active CD patients after 500 ml water intake.
• Serum leptin levels, adjusted for body fat, tended to be higher in active CD patients but did not reach statistical significance.

Conclusions:

• Subjective appetite is significantly altered in active Crohn's disease, characterized by reduced hunger and desire to eat.
• These appetite disturbances may contribute to the anorexia observed in active CD.
• While serum leptin showed a trend towards higher levels in active CD, further research is needed to confirm its role.