Journals / Haseki Tıp Bülteni / 2016 / Cilt: 54 - Sayı: 2

Evidence-Based Laboratory: Determining the Insufficiency Level of Vitamin D

Kanıta Dayalı Laboratuvar: D Vitamini Yetersizlik Sınırlarının Belirlenmesi

Pages
76–82
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: Evaluation of parathyroid hormone which has a major role in the regulation of vitamin D should be done to define and diagnose vitamin D deficiency and insufficiency correctly.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: There is lack of studies on the relationship between parathyroid hormone and vitamin D levels for defining deficiency and insufficiency of vitamin D in adults living in Turkey.
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Key Findings & Data:Therefore, we searched for threshold value of 25-hydroxyvitamin D concentration below which parathyroid hormone levels would significantly increase.
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Conclusion & Impact:Conclusion: Evaluation of parathyroid hormone which has a major role in the regulation of vitamin D should be done to define and diagnose vitamin D deficiency and insufficiency correctly.
🔬Design:Research Article
📍Scope:2015 Verileri
⚙️Variables:Domain Parameters

Abstract

Aim: There is lack of studies on the relationship between parathyroid hormone and vitamin D levels for defining deficiency and insufficiency of vitamin D in adults living in Turkey. Therefore, we searched for threshold value of 25-hydroxyvitamin D concentration below which parathyroid hormone levels would significantly increase. Methods: Between the dates of 01.03.2015 and 01.06.2015, the results of patients older than 18 years were scanned from the laboratory information system. Eight hundred three patients, whose simultaneously analyzed serum levels of calcium, inorganic phosphate, creatinine and intact parathyroid hormone were within the reference ranges and 25-hydroxyvitamin D was <50 ng/mL, were included in the study.Results: There was a significant difference in intact parathyroid hormone levels between subjects with 25-hydroxyvitamin D levels of 15-10 and those with 10-5 ng/mL (p=0.05). A significant increase in intact parathyroid hormone levels (p=0.01) was found to start with a 25-hydroxyvitamin D level below 22 ng/mL within the range of 30 to 10 ng/mL. Consequently, we determined the first 25-hydroxyvitamin D threshold in which intact parathyroid hormone levels significantly increase to be 22 ng/mL and the second threshold as 10 ng/mL. Conclusion: Evaluation of parathyroid hormone which has a major role in the regulation of vitamin D should be done to define and diagnose vitamin D deficiency and insufficiency correctly.

Özet

Amaç: Türkiye'de yaşayan erişkinlerde D vitamini yetersizliğinin ve eksikliğinin tanımları açısından D vitamini düzeylerinin paratiroid hormon ile olan ilişkisine ait çalışmalara ihtiyaç vardır. Biz de paratiroid hormon düzeyinin 25-hidroksi vitamin D düzeyine göre sapma noktasını saptayıp, coğrafyamızdaki D vitamini yetersizliğinin ve eksikliğinin sınır değerleri açısından literatüre katkıda bulunmayı amaçladık.Yöntemler: Laboratuvar yazılım sisteminden 01.03.2015 ile 01.06.2015 tarihleri arasında çalışılmış tetkikleri olan hastalar tarandı. Eş zamanlı olarak istenmiş olan tetkiklerinden; kalsiyum, inorganik fosfat, kreatinin, intakt paratiroid hormon düzeyleri referans aralıkları içerisinde olup, 25-hidroksi vitamin D düzeyi <50 ng/mL olan 18 yaşından büyük 803 hasta retrospektif olarak çalışmaya dahil edildi.Bulgular: Yirmi beş-hidroksi vitamin D düzeyi 15-10 ile 10-5 ng/mL olan gruplardaki intakt paratiroid hormon düzeyleri arasında anlamlı farklılık tespit edildi (p=0,05). 25-hidroksi vitamin D düzeyleri 30 ile 10 ng/mL arasında iken, intakt paratiroid hormon düzeyleri arasındaki anlamlı farklılığın 22 ng/mL düzeyinde yani 50-22 ile 22-10 ng/mL grupları arasında başladığı tespit edildi (p=0,01). Böylece, azalan 25-hidroksi vitamin D düzeylerine anlamlı intakt paratiroid hormon artışının ilk olarak 22 ng/mL düzeyinde olduğu ve daha sonra ilk artışa göre de anlamlı ikinci artışın 10 ng/mL düzeyinde olduğu tespit edildi.Sonuç: D vitamini yetersizliği ve eksikliği tanılarının doğru konulabilmesi için D vitamini regülasyonunda rol alan paratiroid hormonun da değerlendirilmesi gerektiğini söyleyebiliriz.

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Cite This Article

VURGUN, E., EVLİYAOĞLU, O., YILDIRMAK, S. (2016). Evidence-Based Laboratory: Determining the Insufficiency Level of Vitamin D. Haseki Tıp Bülteni, Cilt: 54 - Sayı: 2, 76–82. https://ajindex.com/articles/210235

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