L-arginine Levels in Cystic Fibrosis Patients
Author Information
Author(s): Grasemann Hartmut, Schwiertz Raphael, Grasemann Corinna, Vester Udo, Racké Kurt, Ratjen Felix
Primary Institution: Children's Hospital, University of Duisburg-Essen, Essen, Germany
Hypothesis
Increased arginase levels in the blood of patients with cystic fibrosis may result in L-arginine deficiency.
Conclusion
The study found that L-arginine availability is reduced in cystic fibrosis patients, which may contribute to their disease pathology.
Supporting Evidence
- Systemic arginase levels were significantly increased in cystic fibrosis patients compared to controls.
- Plasma L-arginine was significantly reduced before treatment but normalized after treatment.
- Bioavailability of L-arginine was significantly reduced in cystic fibrosis patients.
Takeaway
Kids with cystic fibrosis have less of a special building block called L-arginine, which is important for their lungs to work well.
Methodology
Plasma amino acid and arginase levels were studied in ten patients with cystic fibrosis before and after 14 days of antibiotic treatment, compared to ten healthy controls.
Limitations
The study had a small sample size and may not represent all cystic fibrosis patients.
Participant Demographics
10 cystic fibrosis patients (3 females) aged 16 to 39 years, compared to 10 healthy controls (3 females) aged 23 to 28 years.
Statistical Information
P-Value
p < 0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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