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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)
The mountain gorillas of the central Virungas have been the subject of field study for the last 30 years; however, our understanding of morbidity and mortality in these apes is limited. This paper describes pathological conditions of the skeleton and dentition of these animals and evaluates lesions in relation to behavioral and environmental data. The skeletal remains of 31 mountain gorillas from the Karisoke Research Center were examined for enamel wear, carious lesions, abscesses, periodontal disease, antemortem
tooth loss
, trauma, inflammation, arthritis, neoplasia, and developmental anomalies. Two infants, three juveniles, 13 adult males, and 13 adult females form the sample. Enamel wear in the permanent posterior dentition is moderate. Six periapical abscesses were seen; three are associated with antemortem tooth breakage. No carious lesions were observed. Pronounced calculus buildup and alveolar resorption are the most notable pathological conditions of the dentition and affect all adult animals. The primary affliction of the skeleton is arthritis, which affects 14 animals. Vertebral degenerative disease predominates, but there is also temporomandibular joint involvement. Fractures occur at seven locations in the postcranium. In addition, there are five cranial injuries, including a fractured sagittal crest, and a penetrating wound to the vault, which is believed to result from a bite. Also thought to result from a bite is a case of cranial osteomyelitis. The only other inflammatory responses are two cases of idiopathic periostitis and one idiopathic lytic lesion. Button osteomas affect two animals and are the only neoplastic conditions observed. Two animals are afflicted by developmental abnormalities: one animal by idiopathic vertebral fusion and the other by spinal
scoliosis
.
...
PMID:Skeletal and dental pathology of free-ranging mountain gorillas. 232 80
Osteogenesis imperfecta (OI) is a heritable disorder of the connective tissue characterized by blue sclerae, osteoporosis and bone fragility. Dentinogenesis imperfecta type I is commonly seen in OI patients, but other dental impairments, such as tooth agenesis or complete
tooth loss
, are rarely reported for these patients. Here, we report the case of a 37-year-old female Chinese OI patient who experienced complete
tooth loss
before puberty. The patient has a family history of OI and her father has a history of
tooth loss
. She showed obvious OI phenotypes, including a dwarfed stature, blue sclerae,
scoliosis
, pigeon chest and a history of fractures.
Tooth loss
began at the age of 6 years and continued until complete
tooth loss
at 20 years; this occurred in the absence of dental decay, gum disease, accidents or drug usage. Radiological studies revealed osteoporosis of the lower limbs and an underdeveloped scapula. Type I collagen gene analysis identified a known c.2314G>A (p.Gly772Ser) substitution in the COL1A2 gene, which we suggest affects the interaction between type I collagen and extracellular matrix proteins, including cartilage oligomeric matrix protein, phosphophoryn and SPARC (secreted protein acidic and rich in cysteine). In silico prediction indicated a relatively mild effect of the mutation, so it is conceivable that the severity of the clinical phenotype may result from additional mutations in candidate genes responsible for abnormal dental phenotypes in this family. To our knowledge, this is the first report of an OI patient with a phenotype of complete
tooth loss
at a young age.
...
PMID:A rare case of osteogenesis imperfecta combined with complete tooth loss. 2393 35