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Related Experiment Video

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Measuring Lactase Enzymatic Activity in the Teaching Lab
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Lactose intolerance: from diagnosis to correct management.

T Di Rienzo1, G D'Angelo, F D'Aversa

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Lactose intolerance affects 75% of the global population, causing digestive issues. Management involves dietary changes and medication, with diagnosis often via a lactose hydrogen breath test.

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Area of Science:

  • Gastroenterology
  • Human Physiology
  • Nutritional Science

Background:

  • Lactose intolerance is a prevalent gastrointestinal issue.
  • Most individuals lose the ability to digest lactose after infancy.
  • Lactose is the primary carbohydrate in milk.

Purpose of the Study:

  • To review the role of lactase-persistence alleles.
  • To discuss the diagnosis of lactose malabsorption.
  • To explore the development and management of lactose intolerance symptoms.

Main Methods:

  • Literature review of lactose intolerance.
  • Discussion of diagnostic methods like the lactose hydrogen breath test.
  • Analysis of management strategies including dietary restriction and drug therapy.

Main Results:

  • Approximately 75% of the world's population experiences lactose malabsorption.
  • Symptoms vary significantly among individuals and include bloating, diarrhea, and abdominal pain.
  • Effective management strategies are available.

Conclusions:

  • Lactose intolerance is a common condition with diverse symptoms.
  • Diagnosis is typically achieved through non-invasive breath testing.
  • Management options include dietary modification and pharmacological interventions.