Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs

Abstract Rickets is a disorder of bone development and can be the result of either dietary or genetic causes. Here, related pugs from 2 litters were included. Three pugs had clinical signs including, lameness, bone deformities, and dyspnea. One other pug was found dead. Radiographs of 2 affected pug...

Full description

Bibliographic Details
Main Authors: Cecilia Rohdin, Chao Wang, Gustaf Brander, Veronica Rondahl, Åsa Karlsson, Lisa Friling, Anthony Fischetti, Jennifer Meadows, Jens Häggström, Karin Hultin Jäderlund, Ingrid Ljungvall, Kerstin Lindblad‐Toh
Format: Article
Language:English
Published: Wiley 2023-07-01
Series:Journal of Veterinary Internal Medicine
Subjects:
Online Access:https://doi.org/10.1111/jvim.16791
_version_ 1797773408387203072
author Cecilia Rohdin
Chao Wang
Gustaf Brander
Veronica Rondahl
Åsa Karlsson
Lisa Friling
Anthony Fischetti
Jennifer Meadows
Jens Häggström
Karin Hultin Jäderlund
Ingrid Ljungvall
Kerstin Lindblad‐Toh
author_facet Cecilia Rohdin
Chao Wang
Gustaf Brander
Veronica Rondahl
Åsa Karlsson
Lisa Friling
Anthony Fischetti
Jennifer Meadows
Jens Häggström
Karin Hultin Jäderlund
Ingrid Ljungvall
Kerstin Lindblad‐Toh
author_sort Cecilia Rohdin
collection DOAJ
description Abstract Rickets is a disorder of bone development and can be the result of either dietary or genetic causes. Here, related pugs from 2 litters were included. Three pugs had clinical signs including, lameness, bone deformities, and dyspnea. One other pug was found dead. Radiographs of 2 affected pugs, 5 and 6 months old, showed generalized widening, and irregular margination of the physes of both the appendicular and the axial skeleton with generalized decrease in bone opacity and bulbous swelling of the costochondral junctions. Two pugs had low serum calcium and 1,25 (OH)2D3 concentrations. Test results further indicated secondary hyperparathyroidism with adequate concentrations of 25‐hydroxyvitamin D. Necropsy revealed tongue‐like projections of cartilage extending into the metaphysis consistent with rickets, loss of metaphyseal mineralization and lung pathology. Vitamin D‐dependent rickets was diagnosed. A truncating mutation in the 1α‐hydroxylase gene (CYP27B1) was identified by genome sequence analysis of the pugs with VDDR type 1A. Vitamin D‐dependent rickets type 1A can occur in young pugs, and if left untreated is a life‐threatening condition. Early medical intervention can reverse clinical signs and should be instituted as soon as possible.
first_indexed 2024-03-12T22:05:03Z
format Article
id doaj.art-65907c8dd5204c1abeae34e96a2b91a2
institution Directory Open Access Journal
issn 0891-6640
1939-1676
language English
last_indexed 2024-03-12T22:05:03Z
publishDate 2023-07-01
publisher Wiley
record_format Article
series Journal of Veterinary Internal Medicine
spelling doaj.art-65907c8dd5204c1abeae34e96a2b91a22023-07-24T15:52:41ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762023-07-013741507151310.1111/jvim.16791Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugsCecilia Rohdin0Chao Wang1Gustaf Brander2Veronica Rondahl3Åsa Karlsson4Lisa Friling5Anthony Fischetti6Jennifer Meadows7Jens Häggström8Karin Hultin Jäderlund9Ingrid Ljungvall10Kerstin Lindblad‐Toh11Department of Clinical Sciences Swedish University of Agricultural Science Uppsala SwedenDepartment of Medical Biochemistry and Microbiology Science for Life Laboratory Uppsala SwedenBroad Institute of MIT and Harvard Cambridge Massachusetts USABiovet Sollentuna SwedenDepartment of Medical Biochemistry and Microbiology Science for Life Laboratory Uppsala SwedenAniCura Djursjukhuset Albano Ringgold Standard Institution Danderyd SwedenDepartment of Diagnostic Imaging, Animal Medical Center New York New York USADepartment of Medical Biochemistry and Microbiology Science for Life Laboratory Uppsala SwedenDepartment of Clinical Sciences Swedish University of Agricultural Science Uppsala SwedenDepartment of Companion Animal Clinical Sciences Norges Miljo‐ og Biovitenskapelige Universitet Fakultet for Veterinarmedisin og Biovitenskap Oslo NorwayDepartment of Clinical Sciences Swedish University of Agricultural Science Uppsala SwedenBroad Institute of MIT and Harvard Cambridge Massachusetts USAAbstract Rickets is a disorder of bone development and can be the result of either dietary or genetic causes. Here, related pugs from 2 litters were included. Three pugs had clinical signs including, lameness, bone deformities, and dyspnea. One other pug was found dead. Radiographs of 2 affected pugs, 5 and 6 months old, showed generalized widening, and irregular margination of the physes of both the appendicular and the axial skeleton with generalized decrease in bone opacity and bulbous swelling of the costochondral junctions. Two pugs had low serum calcium and 1,25 (OH)2D3 concentrations. Test results further indicated secondary hyperparathyroidism with adequate concentrations of 25‐hydroxyvitamin D. Necropsy revealed tongue‐like projections of cartilage extending into the metaphysis consistent with rickets, loss of metaphyseal mineralization and lung pathology. Vitamin D‐dependent rickets was diagnosed. A truncating mutation in the 1α‐hydroxylase gene (CYP27B1) was identified by genome sequence analysis of the pugs with VDDR type 1A. Vitamin D‐dependent rickets type 1A can occur in young pugs, and if left untreated is a life‐threatening condition. Early medical intervention can reverse clinical signs and should be instituted as soon as possible.https://doi.org/10.1111/jvim.16791bonehypocalcemiapugvitamin D
spellingShingle Cecilia Rohdin
Chao Wang
Gustaf Brander
Veronica Rondahl
Åsa Karlsson
Lisa Friling
Anthony Fischetti
Jennifer Meadows
Jens Häggström
Karin Hultin Jäderlund
Ingrid Ljungvall
Kerstin Lindblad‐Toh
Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs
Journal of Veterinary Internal Medicine
bone
hypocalcemia
pug
vitamin D
title Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs
title_full Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs
title_fullStr Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs
title_full_unstemmed Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs
title_short Mutations in the CYP27B1 gene cause vitamin D dependent rickets in pugs
title_sort mutations in the cyp27b1 gene cause vitamin d dependent rickets in pugs
topic bone
hypocalcemia
pug
vitamin D
url https://doi.org/10.1111/jvim.16791
work_keys_str_mv AT ceciliarohdin mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT chaowang mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT gustafbrander mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT veronicarondahl mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT asakarlsson mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT lisafriling mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT anthonyfischetti mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT jennifermeadows mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT jenshaggstrom mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT karinhultinjaderlund mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT ingridljungvall mutationsinthecyp27b1genecausevitaminddependentricketsinpugs
AT kerstinlindbladtoh mutationsinthecyp27b1genecausevitaminddependentricketsinpugs