Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?

Abstract Introduction Developmental dysplasia of the hip (DDH) is a common disorder and associated with significant morbidity of the hip joint. Several risk factors have been identified for DDH. The aim of this study is to investigate whether vitamin D and vitamin D receptor (VDR) levels differ in c...

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Main Authors: Duran Topak, Muhammet Seyithanoğlu, Fatih Doğar, Ali Aydın Karadeniz, Burak Tanrıverdi, Fırat Ozan, Ökkeş Bilal
Format: Article
Language:English
Published: BMC 2021-01-01
Series:Journal of Orthopaedic Surgery and Research
Subjects:
Online Access:https://doi.org/10.1186/s13018-020-02162-y
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author Duran Topak
Muhammet Seyithanoğlu
Fatih Doğar
Ali Aydın Karadeniz
Burak Tanrıverdi
Fırat Ozan
Ökkeş Bilal
author_facet Duran Topak
Muhammet Seyithanoğlu
Fatih Doğar
Ali Aydın Karadeniz
Burak Tanrıverdi
Fırat Ozan
Ökkeş Bilal
author_sort Duran Topak
collection DOAJ
description Abstract Introduction Developmental dysplasia of the hip (DDH) is a common disorder and associated with significant morbidity of the hip joint. Several risk factors have been identified for DDH. The aim of this study is to investigate whether vitamin D and vitamin D receptor (VDR) levels differ in children with DDH and whether they have an effect on DDH development. Materials and methods A total of 40 (17 males, 23 females; 9 right hips, 16 left hips, 15 bilateral hips) children who were treated for developmental dysplasia and 40 (23 males, 17 females) healthy children without any musculoskeletal system and metabolic disorders were included in this study between January and June 2019. Blood samples from the DDH and control groups of children were collected to measure the serum levels of vitamin D, VDR, calcium (Ca), phosphorus (P), and alkaline phosphatase (ALP). The levels of Ca, P, and ALP were analyzed using the automated standard spectrophotometric laboratory method. The levels of vitamin D and VDR in the samples were analyzed using enzyme-linked immunoassay. Results There were no significant differences in the serum levels of Ca, P, ALP, and vitamin D between the DDH and healthy groups (Ca 9.96 ± 0.47 vs. 9.92 ± 0.48 mg/dL, respectively, p = 0.721; P 5.3 ± 0.94 vs. 4.82 ± 0.88 mg/dL, respectively, p = 0.23; ALP 252.22 ± 170.15 vs. 245.3 ± 130.93 U/L, respectively, p = 0.839). However, serum VDR levels were significantly lower in children in the DDH group (5.77 ± 3.51 ng/mL) than in the healthy control group (9.25 ± 6.43 ng/mL) (p = 0.004). Conclusions In conclusion, we believe that low VDR levels can affect DDH regardless of the serum levels of Ca, P, ALP, and vitamin D. More comprehensive studies involving parents are needed to understand whether VDR levels mediate genetic transmission in DDH or not.
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spelling doaj.art-f40530bb1c2a4565a4625834a12b41ee2022-12-22T04:10:08ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2021-01-011611510.1186/s13018-020-02162-yAre vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?Duran Topak0Muhammet Seyithanoğlu1Fatih Doğar2Ali Aydın Karadeniz3Burak Tanrıverdi4Fırat Ozan5Ökkeş Bilal6Faculty of Medicine, Department of Orthopaedic and Traumatology, Kahramanmaras Sutcu Imam UniversityFaculty of Medicine, Department of Biochemistry, Kahramanmaras Sutcu Imam UniversityFaculty of Medicine, Department of Orthopaedic and Traumatology, Kahramanmaras Sutcu Imam UniversityFaculty of Medicine, Department of Orthopaedic and Traumatology, Kahramanmaras Sutcu Imam UniversityFaculty of Medicine, Department of Biochemistry, Kahramanmaras Sutcu Imam UniversityDepartment of Orthopedics and Traumatology, Kayseri Training and Research HospitalFaculty of Medicine, Department of Orthopaedic and Traumatology, Kahramanmaras Sutcu Imam UniversityAbstract Introduction Developmental dysplasia of the hip (DDH) is a common disorder and associated with significant morbidity of the hip joint. Several risk factors have been identified for DDH. The aim of this study is to investigate whether vitamin D and vitamin D receptor (VDR) levels differ in children with DDH and whether they have an effect on DDH development. Materials and methods A total of 40 (17 males, 23 females; 9 right hips, 16 left hips, 15 bilateral hips) children who were treated for developmental dysplasia and 40 (23 males, 17 females) healthy children without any musculoskeletal system and metabolic disorders were included in this study between January and June 2019. Blood samples from the DDH and control groups of children were collected to measure the serum levels of vitamin D, VDR, calcium (Ca), phosphorus (P), and alkaline phosphatase (ALP). The levels of Ca, P, and ALP were analyzed using the automated standard spectrophotometric laboratory method. The levels of vitamin D and VDR in the samples were analyzed using enzyme-linked immunoassay. Results There were no significant differences in the serum levels of Ca, P, ALP, and vitamin D between the DDH and healthy groups (Ca 9.96 ± 0.47 vs. 9.92 ± 0.48 mg/dL, respectively, p = 0.721; P 5.3 ± 0.94 vs. 4.82 ± 0.88 mg/dL, respectively, p = 0.23; ALP 252.22 ± 170.15 vs. 245.3 ± 130.93 U/L, respectively, p = 0.839). However, serum VDR levels were significantly lower in children in the DDH group (5.77 ± 3.51 ng/mL) than in the healthy control group (9.25 ± 6.43 ng/mL) (p = 0.004). Conclusions In conclusion, we believe that low VDR levels can affect DDH regardless of the serum levels of Ca, P, ALP, and vitamin D. More comprehensive studies involving parents are needed to understand whether VDR levels mediate genetic transmission in DDH or not.https://doi.org/10.1186/s13018-020-02162-yDevelopmental dysplasia of the hipRisk factorVitamin D receptorVitamin D
spellingShingle Duran Topak
Muhammet Seyithanoğlu
Fatih Doğar
Ali Aydın Karadeniz
Burak Tanrıverdi
Fırat Ozan
Ökkeş Bilal
Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?
Journal of Orthopaedic Surgery and Research
Developmental dysplasia of the hip
Risk factor
Vitamin D receptor
Vitamin D
title Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?
title_full Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?
title_fullStr Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?
title_full_unstemmed Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?
title_short Are vitamin D and vitamin D receptor levels different in children with developmental dysplasia of the hip?
title_sort are vitamin d and vitamin d receptor levels different in children with developmental dysplasia of the hip
topic Developmental dysplasia of the hip
Risk factor
Vitamin D receptor
Vitamin D
url https://doi.org/10.1186/s13018-020-02162-y
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