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Target Concepts:
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Query: UMLS:C0700208 (
scoliosis
)
8,574
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
A case of cervical deformity of lambs following dosage with vitamin D was investigated. The lesions of a
scoliosis
are described together with the kidney lesions. It is suggested that doses of vitamin D normally considered to be non-toxic to sheep may prove to be so under certain conditions.
Vet
Rec
1976 Feb 21
PMID:Cervical scoliosis and kidney lesions in sheep following dosage with vitamin D. 126 95
Skeletal malformations at metamorphosis in Rana perezi tadpoles reared in culture have been studied. Tadpoles were fed ten artificially compounded and fresh diets and kept at two different temperatures. Animals were maintained in fiberglass tanks. Bone damages are related to the nourishment with compound diets. Tadpoles fed such diets showed variable percentages of
scoliosis
, kyphosis, luxations, and subluxations in the hind limbs, aplasia in phalanges, and wide failures of ossification. The data suggest the origin of the lesions is a deficiency in some compounded diets that could alter collagen metabolism during skeletal adjustments at metamorphosis.
Anat
Rec
1992 Jun
PMID:Skeletal malformations in hatchery reared Rana perezi tadpoles. 160 95
The origin of growth cartilages in the neural arch of human fetal vertebrae was investigated in an attempt to resolve the conflicting opinion on ossification in this region. Serial sections of developing vertebrae were examined, and three growth cartilages for each half of the neural arch were found. They have their origin from a single center of ossification. Endochondral bone formation similar to ossification in the diaphysis of a long bone occurs in the neural arch. This information may help in the understanding of how vertebral malformations such as
scoliosis
and spondylolysis occur during postnatal life.
Anat
Rec
1991 May
PMID:Multiple growth cartilages in the neural arch. 206 22
Two koi (Cyprinus carpio) from the same pond developed similar lesions of
scoliosis
. Radiographic examinations showed that their spines had become malaligned as a result of vertebral compression fractures involving T14 to T16. The vertebrae in both fish were stabilised with screws, k-wire and polymethylmethacrylate. They both appeared to improve after surgery, but they began to decline and died within three months. A postmortem examination revealed multi-organ inflammation that was not associated with the surgical implants.
Vet
Rec
2004 Jul 24
PMID:Stabilisation of scoliosis in two koi (Cyprinus carpio). 1532 41
A vertebral fragment of the Late Jurassic ornithopod dinosaur Dysalotosaurus lettowvorbecki from Tanzania is described. It consists of a hemivertebra that is co-ossified with a complete vertebral centrum. The hemivertebra causes a hyperkyphotic posture of the vertebral column with an angle of approximately 35 degrees between the end plates of the vertebra, that is, a dorsal bending of the vertebral column. Associated with this is a 15 degrees lateral bending, which suggests a
scoliosis
. Micro-CT scans reveal thickening of the cortical bone in the hemivertebra and the complete vertebral centrum as compared to a "normal" vertebra. This can be interpreted as a reaction of the bone to the abnormal direction of forces arising from the defective configuration of the vertebral column. No signs of vertebral fracture are present. The arrangement of the Foramina venosa and the trapezoidal outline of the complete centrum that is co-ossified with the hemivertebra indicate that the hemivertebra in Dysalotosaurus developed early in embryogenesis probably by "hemimetameric segmental shift", that is, a defect of the fusion of the paired vertebral anlagen. This finding illustrates that hemivertebrae represent a fundamental defect of the vertebrate ontogenetic program.
Anat
Rec
(Hoboken) 2008 Sep
PMID:Vertebral pathology in an ornithopod dinosaur: a hemivertebra in Dysalotosaurus lettowvorbecki from the Jurassic of Tanzania. 1853 52
Clinical studies have suggested that defects in the epaxial muscles, particularly multifidus, may contribute to the etiology of idiopathic
scoliosis
. While the epaxial muscles and the vertebrae derive from the same embryonic segmentation process, the mechanisms that pattern the multisegmental back muscles are still unclear. The process of segmentation is regulated by the Notch signaling pathway, and mutations in the modulators delta-like 3 (Dll3) and lunatic fringe (Lfng) are genetic models for spinal disorders such as
scoliosis
. Osteological defects have been characterized in these genetic models, but myological phenotypes have not previously been studied. We analyzed the multifidus muscle in the mouse (Mus musculus) and observed intriguing changes in the cranio-caudal borders of multifidus in Dll3 and Lfng models. Statistical analysis did not find a significant association between the majority of the multifidus anomalies and the vertebral defects, suggesting a previously unappreciated role for Notch signaling in patterning epaxial muscle groups. These findings indicate an additional mechanism by which DLL3 and LFNG may play a role in the etiology of human idiopathic
scoliosis
.
Anat
Rec
(Hoboken) 2012 Jan
PMID:Mutations in the Notch pathway alter the patterning of multifidus. 2209 84