Prevalence of SHOX haploinsufficiency among short statured children
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Prevalence of SHOX haploinsufficiency among short statured children. / Marstrand-Joergensen, Maja Rou; Jensen, Rikke Beck; Aksglaede, Lise; Duno, Morten; Juul, Anders.
I: Pediatric Research, Bind 81, Nr. 2, 02.2017, s. 335-341.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Prevalence of SHOX haploinsufficiency among short statured children
AU - Marstrand-Joergensen, Maja Rou
AU - Jensen, Rikke Beck
AU - Aksglaede, Lise
AU - Duno, Morten
AU - Juul, Anders
PY - 2017/2
Y1 - 2017/2
N2 - BACKGROUND: The aim of this clinical study was to determine the prevalence of SHOX haploinsufficiency in a population of short stature patients and describe their anthropometric measurements.METHODS: 574 short statured patients were evaluated in a single center (1992-2015). SHOX copy number was detected by quantitative polymerase chain reaction (qPCR) in 574 subjects, followed by multiplex ligation-dependent probe amplification (MLPA) and DNA sequencing in subjects with SHOX haploinsufficiency. We evaluated anthropometric measurements at birth, and at first examination. Skeletal abnormalities were recorded for patients with SHOX haploinsufficiency.RESULTS: Thirty-two patients were excluded due to Turner syndrome (n = 28), SRY-positive 46,XX male karyotype (n = 1), or lacked clinical follow-up information (n = 3). The prevalence of SHOX haploinsufficiency was 9 out of 542 (1.7%). The nine children had decreased height -2.85 (0.6) SD scores (SDS) (mean (SD)) and weight -2.15 (1.36) SDS, P < 0.001 and P = 0.001, respectively. The sitting height/height ratio was increased, P = 0.04. Madelung deformity was diagnosed in three patients. Mean height was -2.9 (0.4) SDS at baseline and increased by 0.25 (0.2) SDS, P = 0.046, after 1 y of growth hormone (GH) treatment.CONCLUSION: The prevalence of SHOX haploinsufficiency was 1.7%. The clinical findings indicating SHOX haploinsufficiency among the nine children were disproportionate short stature and forearm anomalies.
AB - BACKGROUND: The aim of this clinical study was to determine the prevalence of SHOX haploinsufficiency in a population of short stature patients and describe their anthropometric measurements.METHODS: 574 short statured patients were evaluated in a single center (1992-2015). SHOX copy number was detected by quantitative polymerase chain reaction (qPCR) in 574 subjects, followed by multiplex ligation-dependent probe amplification (MLPA) and DNA sequencing in subjects with SHOX haploinsufficiency. We evaluated anthropometric measurements at birth, and at first examination. Skeletal abnormalities were recorded for patients with SHOX haploinsufficiency.RESULTS: Thirty-two patients were excluded due to Turner syndrome (n = 28), SRY-positive 46,XX male karyotype (n = 1), or lacked clinical follow-up information (n = 3). The prevalence of SHOX haploinsufficiency was 9 out of 542 (1.7%). The nine children had decreased height -2.85 (0.6) SD scores (SDS) (mean (SD)) and weight -2.15 (1.36) SDS, P < 0.001 and P = 0.001, respectively. The sitting height/height ratio was increased, P = 0.04. Madelung deformity was diagnosed in three patients. Mean height was -2.9 (0.4) SDS at baseline and increased by 0.25 (0.2) SDS, P = 0.046, after 1 y of growth hormone (GH) treatment.CONCLUSION: The prevalence of SHOX haploinsufficiency was 1.7%. The clinical findings indicating SHOX haploinsufficiency among the nine children were disproportionate short stature and forearm anomalies.
KW - Adolescent
KW - Body Height
KW - Child
KW - Child, Preschool
KW - Female
KW - Gene Deletion
KW - Growth Disorders/complications
KW - Haploinsufficiency
KW - Human Growth Hormone/therapeutic use
KW - Humans
KW - Infant
KW - Infant, Newborn
KW - Karyotyping
KW - Male
KW - Osteochondrodysplasias/complications
KW - Point Mutation
KW - Polymerase Chain Reaction
KW - Prevalence
KW - Retrospective Studies
KW - Sequence Analysis, DNA
KW - Short Stature Homeobox Protein/genetics
U2 - 10.1038/pr.2016.233
DO - 10.1038/pr.2016.233
M3 - Journal article
C2 - 27814343
VL - 81
SP - 335
EP - 341
JO - Pediatric Research
JF - Pediatric Research
SN - 0031-3998
IS - 2
ER -
ID: 197002381