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Published on: August 7, 2017
Vitamin D Status in Infants with Two Different Wheezing Phenotypes
Ali Ozdemir1, Dilek Dogruel2, Ozlem Yilmaz3
1Pediatric Pulmonary Section, Department of Pediatrics, Mersin Children's Hospital, Halkkent, 33240, Mersin, Turkey. aliozdemir@hotmail.com.
Insights
Infants with recurrent wheeze, regardless of Asthma Predictive Index status, show lower vitamin D levels. Vitamin D deficiency is more prevalent in these infants, suggesting a potential role in recurrent wheezing development.
Area of Science:
- Pediatrics
- Nutritional Science
- Respiratory Medicine
Background:
- Recurrent wheeze is a common respiratory issue in early childhood.
- Vitamin D plays a crucial role in immune system regulation.
- Understanding factors contributing to recurrent wheeze is vital for early intervention.
Purpose of the Study:
- To investigate serum vitamin D levels in infants diagnosed with recurrent wheeze.
- To compare vitamin D status between infants with different recurrent wheeze phenotypes (API positive vs. negative) and healthy controls.
Main Methods:
- A cross-sectional study involving 186 infants with recurrent wheezing and 118 healthy controls.
- Serum 25-hydroxy vitamin D [25(OH)D] levels were measured as an indicator of vitamin D adequacy.
- Infants with recurrent wheeze were categorized based on Asthma Predictive Index (API) positivity.
Main Results:
- Infants with recurrent wheeze exhibited significantly lower mean serum 25(OH)D levels compared to healthy controls (p < 0.05).
- The API-negative group had the lowest mean vitamin D level (22.71 ± 10.76 ng/ml), followed by the API-positive group (24.08 ± 9.02 ng/ml).
- Vitamin D deficiency was more prevalent in both API-negative (52.1%) and API-positive (38.5%) infants compared to controls (31.4%).
Conclusions:
- Low serum 25(OH)D levels are detected in infants presenting with recurrent wheezing, irrespective of API status.
- Vitamin D deficiency may be implicated in the pathogenesis of recurrent wheezing in infants.
- Further research is warranted to explore the therapeutic potential of vitamin D supplementation.
Objective:
To investigate vitamin D levels in patients with recurrent wheeze at early ages of childhood.
Methods:
In the present cross-sectional study, serum 25-hydroxy vitamin D [25 (OH)D], levels which is known as an indicator of vitamin D adequacy, was examined in infants with three or more wheezing attacks.
Results:
A total of 186 infants with recurrent wheezing were included in the study along with 118 healthy control peers. The recurrent wheezing study participants were classified into two groups according to Asthma Predictive Index (API) positivity and compared to control subjects regarding their serum vitamin D status. The API negative group had the lowest mean serum 25 (OH)D level (n = 121; 22.71 ± 10.76 ng/ml) followed by API positive group (n = 65; 24.08 ± 9.02 ng/ml) compared to healthy group (26.24 ± 11.88 ng/ml) (p < 0.05). In addition, higher vitamin D deficiency was observed in infants in API negative group (52.1 %; p < 0.01) and API positive group (38.5 %; p < 0.05) than control group (31.4 %).
Conclusions:
Low levels of 25 (OH)D were detected in infants with two different phenotypes of recurrent wheeze. Vitamin D deficiency may play a role in the pathogenesis of infants with recurrent wheezing.
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