نتایج جستجو برای: pathologic ossification
تعداد نتایج: 52472 فیلتر نتایج به سال:
3 INSERTION OF THE CORACO-ACROMIAL LIGAMENT IN THE ACROMION: HISTOLOGIC STUDY OF THE DEGENERATIVE ENDOCHONDRAL OSSIFICATION O. Lech, MD, J. Barbosa, MD, A. Gailit, Jr, MD, and A. Marcolan, MD; Instituto de Ortopedia e Traumatologia de Passo Fundo, RS, Brazil The authors evaluate the incidence of degenerative endochondral ossification at the insertion of the coraco-acromial ligament (CAL) in the...
BACKGROUND For nearly a century, the mechanical failure of calcified heart valves was attributed to a passive degenerative process. Recently, several case reports described bone formation in surgically excised heart valves and suggested an unexpected process of tissue repair. METHODS AND RESULTS We studied the prevalence and pathology of heterotopic ossification in 347 surgically excised hear...
STUDY DESIGN Preliminary experimental study using a rabbit spondylitis model. PURPOSE To observe the ossification in a micro-environment containing live Mycobacterium tuberculosis transplanted with bone marrow stromal cells (BMSCs) in rabbits. OVERVIEW OF LITERATURE BMSCs differentiate to osteoblasts and then osteocytes during ossification. Mycobacterium tuberculosis does not affect BMSC gr...
BACKGROUND Ossification of the posterior longitudinal ligament (OPLL) of the spine is a common human myelopathy that leads to spinal cord compression. No disease-modifying drug for OPLL has been identified, whereas surgery and conservative management have been established. OBJECTIVES To evaluate the therapeutic potential of the H2 blocker famotidine for ectopic ossification in the cervical sp...
BACKGROUND AND PURPOSE The developing fetal skull base has previously been studied via dissection and low-resolution CT. Most of the central skull base develops from endochondral ossification through an intermediary chondrocranium. We traced the development of the normal fetal skull base by using plain radiography, MR imaging, and CT. METHODS Twenty-nine formalin-fixed fetal specimens ranging...
Bone morphogenetic protein 2 (BMP2) is one of the key chondrogenic growth factors involved in the cartilage regeneration. However, it also exhibits osteogenic abilities and triggers endochondral ossification. Effective chondrogenesis and inhibition of BMP2-induced osteogenesis and endochondral ossification can be achieved by directing the mesenchymal stem cells (MSCs) towards chondrocyte lineag...
BACKGROUND: The growth and differentiation of skeletal pectoral limb girdle, wing and the ossification centers in these regions after hatching were investigated in some groups of quails. OBJECTIVES: The aim of this study was to determine the age of physical maturity and radiological and histological assessment of the ossification centers of pectoral limb in quail. METHODS: 14 quails after hatch...
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