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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
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Anorexia Nervosa01:28

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Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
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Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
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Liver Function Tests and Complete Blood Counts Among Adolescents With Restrictive Eating Disorders: What Are the

Hanna Suh1, Lise DeShea2, Briana Griffin2

  • 1Case Western Reserve University School of Medicine, Cleveland, Ohio.

The Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine
|September 15, 2025
PubMed
Summary

Anorexia nervosa (AN) and avoidant/restrictive food intake disorder (ARFID) show distinct liver function and blood count differences, even at similar BMIs. Further research into dietary intake is needed to understand these laboratory variations.

Keywords:
Adolescent eating disordersAlanine transaminaseAnorexia nervosaAspartate aminotransferaseAvoidant/restrictive food intake disorderComplete blood countsLipaseLiver function testsPlateletsRestrictive eating disorders

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Area of Science:

  • Pediatric Gastroenterology
  • Clinical Nutrition
  • Hematology

Background:

  • Anorexia nervosa (AN) is linked to abnormal liver function tests (LFTs) and hematologic parameters.
  • Associations between avoidant/restrictive food intake disorder (ARFID) and these lab values are less understood.
  • This study investigates differences in LFTs and complete blood counts (CBCs) between AN and ARFID in adolescents.

Purpose of the Study:

  • To explore the associations between the diagnoses of AN versus ARFID and specific liver function tests and complete blood counts.
  • To compare laboratory findings between adolescent patients diagnosed with AN and ARFID.

Main Methods:

  • Retrospective analysis of data from adolescent patients (2013-2023) in a disordered eating program.
  • Examined associations between liver enzymes (alanine aminotransferase, aspartate aminotransferase, lipase), CBCs (hemoglobin, platelet count, white blood cell count), and diagnostic category.
  • Statistical analyses included chi-square tests, generalized linear models, and logistic regression, controlling for BMI, age, illness duration, and food intake.

Main Results:

  • Patients with AN (n=123) and ARFID (n=100) showed similar % median BMI for age.
  • AN patients had significantly higher mean alanine aminotransferase levels compared to ARFID patients.
  • ARFID patients exhibited significantly higher mean white blood cell and platelet counts than AN patients, correlating with higher calorie-dense food intake.

Conclusions:

  • Significant differences in alanine aminotransferase, white blood cell, and platelet counts exist between AN and ARFID patients with comparable BMI.
  • These findings highlight distinct hematologic and hepatic profiles for these eating disorders.
  • Further research into macronutrient intake is recommended to elucidate the mechanisms behind these laboratory differences.