What's the difference between osteoblast and osteoplast?
Osteoblast
Definition:
(n.) One of the protoplasmic cells which occur in the osteogenetic layer of the periosteum, and from or around which the matrix of the bone is developed; an osteoplast.
Example Sentences:
(1) Blocking the heparin-binding domains of fibronectin inhibited osteoblast attachment by 40-45%, which is complementary to inhibition results previously obtained with the RGDS tetrapeptide.
(2) Human GH did not alter basal cyclic AMP levels in mouse osteoblasts.
(3) The detailed sequence of the expression of osteoblastic genes in situ has not been fully characterized.
(4) The present data indicate the osteoblast as a direct and specific target for ipriflavone and suggest that this compound may share intracellular transducing mechanisms with other antiosteoporotic hormones such as estrogen and calcitonin.
(5) The data suggest that after spaceflight there is a strong and rapid recovery mechanism for osteoblast differentiation that is not suppressed by physiological stress.
(6) The presence of alkaline phosphatase-positive cells forming woven bone in giant cell granulomas suggests that osteoblasts are present in the lesion.
(7) Marked declines in stainable bone-surface aluminum were associated with increases in bone formation rate and osteoblastic osteoid following deferoxamine.
(8) They were formed by budding off from the cytoplasmic projections of the osteoblastic tumor cells.
(9) In order to determine the specific action of cadmium on bone metabolism, the effect of cadmium on alkaline phosphatase activity, a marker enzyme of osteoblasts, was compared with that of other divalent heavy metal ions, i.e., zinc, manganese, lead, copper, nickel and mercury (10 microM each), using cloned osteoblast-like cells, MC3T3-E1.
(10) Osteoblast-like rat calvaria cells release specific insulin-like growth factor (IGF) carrier proteins (CPs).
(11) The osseous component consisted of immature woven bone trabeculae lined by abnormal osteoblasts with a fibroblastlike appearance.
(12) This heterogeneity of the osteoblast and odontoblast population suggests that the composition of the matrix produced by these cells also differs.
(13) ALP activity in PLF was stimulated but that of osteoblasts was inhibited under the hypoxic condition.
(14) WCM stimulated adenylate cyclase in osteoblast like cells, the dose-response curve paralleling that of hPTHrP(1-34).
(15) Sections of mitochondria from prenatal osteoblasts showed an average number of 10 granuales per mitochondrial section, whereas sections of mitochondria of postnatal osteoblasts showed only occasionally 1-2 granules per mitochondrial section.
(16) Zn was found in bone matrix, osteoblasts, osteocytes and hypertrophied chondrocytes.
(17) Gold(III) (Au(III)) up to 0.25 microM increased parathyroid hormone- and prostaglandin E2-sensitive chick osteoblast adenylate cyclase activity without affecting 5'-guanylylimidodiphosphate-stimulated enzyme activity.
(18) Biosynthesis of calcitroic acid has been demonstrated in two target cells of vitamin D, in the kidney and the osteoblastic cell line UMR-106.
(19) Cd-treated cells were well differentiated into osteoblasts morphologically, but the mineralization degree was lower than that of the controls.
(20) A monoclonal antibody (MBP 322), raised against a denatured form of a small collagenous bone protein, reacted strongly with osteoblastic cells but more moderately with alveolar bone.
Osteoplast
Definition:
(n.) An osteoblast.
Example Sentences:
(1) Massive osteoplastic bone tumor in hepatocellular carcinoma is very rare.
(2) The types of metastasis expansion in the bones were determined radiologically: the most frequent--osteolytic, less frequent--mixed, and the osteoplastic type (prostate cancer, gall-bladder cancer, and pancreas cancer).
(3) Biopsy was performed in seven patients harbouring osteolytic and osteoplastic lesions of the cervical (3 cases), thoracic (3 cases) and lumbar spine (1 case).
(4) During osteoplastic surgery of the maxillary sinus routinely performed by the author in more than 700 cases since 1973 a piece of bone (the "Bone Lid") including the attached mucosa is cut out of the anterior wall of the maxillary sinus in such a fashion that it serves perfectly to close the opening again as a free graft at the end of the operation.
(5) Unpleasant symptoms such as facial neuralgia and discomfort, were reduced to half after osteoplastic reconstruction of the anterior wall of the maxillary sinus.
(6) Only complete opening combined with complete reconstruction serves really eradicating the pathology completely as well as full reconstruction of the middle ear and the external canal; this means osteoplastic epitympanotomy.
(7) The method of choice for the treatment was the osteoplastic trepanation with a removal of the haematoma.
(8) Surgically, we preferred the transethmoidal route and in some cases the lateral osteoplastic approach.
(9) Nasofrontal duct reconstruction offers more direct access to the ethmoid cell system than osteoplastic flap obliteration.
(10) A rare but distressing complication of frontal embossment was managed after osteoplastic flap surgery.
(11) Patients were treated with a variety of procedures including cranialization (42%), osteoplastic flap and fat obliteration (30%), open reduction and internal fixation of the anterior wall (20%), osteoplastic flap and sinus ablation (6%), and intersinus septectomy (1%).
(12) Osteoplastic trephination and encephalotomy is the principal surgical method.
(13) Surgical interference within the blood supply to the inner ear was responsible for metaplastic bone, and damage to the endosteum by surgery or disease caused osteoplastic bone.
(14) Treatments of PA-III-affected bones with Cl2MDP and x-rays immobilized both osteolytic and osteoplastic processes.
(15) The operative approach and findings of 250 osteoplastic frontal sinusotomy operations performed from 1956 through 1972 at the Massachusetts Eye and Ear Infirmary are reviewed.
(16) This is a report on two cases of an extensive absorption of bone following reimplantation of an osteoplastic flap of the cranial vault.
(17) Those identified as producing mechanical complications clinically, or a 'hot' bone scan by radionuclide study, were regarded as appropriate for osteoplastic frontal sinusectomy for removal of the osteoma; three cases were approached in this way.
(18) Resection trepanation of the skull was carried out in 55 patients, osteoplastic in 23.
(19) Histologically, the tumor was composed of hepatocellular carcinoma, cholangiocarcinoma, and sarcomatous portions, including spindle-shaped, pleomorphic, and osteoplastic varieties.
(20) In the osteoplastic approach the superior and posterior segment of the ear canal wall is temporarily removed.