Related Experiment Videos

Malnutrition in adults with cystic fibrosis

X Dray1, R Kanaan, T Bienvenu

  • 1Service d'Hépato-Gastro-Entérologie, Hôpital Européen Georges Pompidou, Paris, France.

Insights

Malnutrition affects nearly half of adult cystic fibrosis (CF) patients, particularly those with severe CFTR genotypes. Early diagnosis and milder CFTR genotypes are linked to better nutritional status.

Area of Science:

  • Pulmonology
  • Genetics
  • Nutritional Science

Background:

  • Cystic Fibrosis (CF) is a genetic disorder affecting multiple organs.
  • Malnutrition is a common complication in CF patients.
  • The CFTR genotype is known to influence CF phenotype severity.

Purpose of the Study:

  • To investigate the prevalence of malnutrition in adult CF patients.
  • To identify clinical features associated with malnutrition in CF.
  • To explore the relationship between CFTR genotype and malnutrition in CF.

Main Methods:

  • Cross-sectional study design.
  • Involved 163 adult CF patients from a French hospital (1997-1999).
  • Assessed malnutrition using Body Mass Index (BMI <18.5 kg/m2) and correlated findings with CFTR genotype and clinical parameters.

Main Results:

  • Nearly half (49.7%) of adult CF patients exhibited malnutrition (BMI <18.5 kg/m2).
  • Malnutrition severity correlated with early CF diagnosis, reduced FEV1, FEV1 decline, pancreatic insufficiency, and gastro-oesophageal reflux.
  • Patients with severe CFTR genotypes had a higher prevalence of malnutrition (58.7%) compared to those with mild genotypes (28.6%).

Conclusions:

  • Malnutrition remains a significant issue in adult CF populations.
  • Milder CFTR genotypes, associated with milder CF phenotypes and later diagnosis, are linked to a lower prevalence of malnutrition.
  • Understanding these relationships can inform targeted nutritional interventions in CF care.
Abstract

Related Concept Videos

Cystic Fibrosis: Management01:24

Cystic Fibrosis: Management

Cystic fibrosis (CF) is an autosomal recessive disorder that predominantly affects individuals of Northern European descent, occurring at a rate of 1 in 3500. It is caused by a genetic mutation in a gene on chromosome 7, most commonly the ΔF508 mutation, that codes for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. This results in thicker mucus secretions and obstruction pathologies in multiple organs, including the lungs and sinuses.
Sinus disease and chronic sinusitis...
Overview of Protein Metabolism01:21

Overview of Protein Metabolism

Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...