The purpose of this study is to improve the understanding of the relationship of zinc status and growth in infants and young children who were diagnosed with cystic fibrosis via newborn screening.
The objective of this study is to improve the understanding of the relationship of zinc (Zn) status and growth in infant and young people with cystic fibrosis (PWCF). The investigators hypothesize that Zn deficiency in infant and young PWCF is associated with poor growth. Aim #2: To study the association between Zn levels in red blood cells and nutritional status in PWCF at 3 months to 3 years of age and compare it to the association between serum Zn and nutritional status in the same population. Hypothesis: Lower Zn levels in red blood cells is associated with poorer nutritional status in infant and young PWCF and is a better measure of Zn status compared to serum Zn.
Study Type
OBSERVATIONAL
Enrollment
35
The investigators will obtain an additional 2 mL of blood in an extra tube. This will be collected at the same time blood is collected for the participant's yearly CF screening labs so as to minimize additional needle sticks.
If the participant is greater or equal than 5 kg, an additional 2 mL of blood will be obtained in an extra tube. This will be collected at the same time blood is collected for the participant's yearly CF screening labs so as to minimize additional needle sticks.
Riley Hospital for Children at Indiana University Health
Indianapolis, Indiana, United States
Zinc Status
Zn status in infant and young PWCF as measured by serum Zn and red blood cell Zn
Time frame: 1 day
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