| 单词 | osteoblast |
| 例句 | In healthy people, there is a balance between the osteoblasts that build new bone and osteoclasts that break it down. AI identifies antimalarial drug as possible osteoporosis treatment 2023-10-18T04:00:00Z The osteoblasts of the skeletal system use excess calcium in the blood to deposit new bone. Fundamentals of Biology 2015-01-01T00:00:00Z They then differentiate into osteoblasts at the ossification center. Biology for AP Courses 2022-06-09T00:00:00Z Osteoclasts resorb dead bone, while osteoblasts create new bone that replaces the cartilage in the calli. Anatomy and Physiology 2013-06-19T00:00:00Z And while the scales on most living fishes are formed by odontoblasts, the cells that create our teeth, the cory’s scales are grown from osteoblasts, the cells responsible for building bone. How these fish—'tiny tanks of the Amazon'—survive piranha attacks 2021-01-21T05:00:00Z The presence of RANK-containing vesicles also triggered mineral deposition by osteoblasts, both in vitro and in mouse skulls in vivo. Receptor becomes a ligand to control bone remodelling 2018-09-04T04:00:00Z Cells called osteoclasts break down bone cells that attach the antler to the skull, while osteoblasts will start building them up in the spring. Why Do Moose Shed Their Antlers? 2018-01-20T05:00:00Z Blood vessels invade the cavities, and osteoblasts and osteoclasts modify the calcified cartilage matrix into spongy bone. Biology for AP Courses 2022-06-09T00:00:00Z Formation of osteoid spreads out the osteoblasts that formed the ossification centers. Anatomy and Physiology 2013-06-19T00:00:00Z Ageing affects the mesenchymal stem cells that differentiate into either osteoblasts or fat cells. Osteoporosis: Staying strong : Nature : Nature Research 2017-10-03T04:00:00Z Finally, and perhaps most importantly, the study provides a mechanism by which osteoclasts in the process of resorbing bone communicate with nearby osteoblasts to regulate the extent to which new bone is formed. Receptor becomes a ligand to control bone remodelling 2018-09-04T04:00:00Z The parasites might trigger these problems, the scientists hypothesized, by upsetting the normal balance between cells known as osteoclasts, which dissolve bone, and cells called osteoblasts, which build it back up. Malaria may weaken the skeleton 2017-06-02T04:00:00Z Though fragments of the blood clot may remain, fibroblasts and osteoblasts enter the area and begin to reform bone. Biology for AP Courses 2022-06-09T00:00:00Z PTH also inhibits osteoblasts, the cells involved in bone deposition, thereby sparing blood calcium. Anatomy and Physiology 2013-06-19T00:00:00Z Then another type, known as an osteoblast, lays down a new matrix composed mainly of collagen, which then hardens. Osteoporosis: Staying strong : Nature : Nature Research 2017-10-03T04:00:00Z But it is less clear how osteoclasts signal to osteoblasts to modify bone formation. Receptor becomes a ligand to control bone remodelling 2018-09-04T04:00:00Z The study showed the stem cells were increasing the natural activity of the osteoblasts - rather than directly making new bone themselves. 'Pregnancy fluid' reverses ageing bones - BBC News 2016-12-20T05:00:00Z Fibroblasts produce collagen fibers that connect the broken bone ends, and osteoblasts start to form spongy bone. Biology for AP Courses 2022-06-09T00:00:00Z When osteoblasts get trapped within the calcified matrix, their structure and function changes, and they become osteocytes. Anatomy and Physiology 2013-06-19T00:00:00Z The net effect is that ageing reduces the number of osteocytes and osteoblasts, impairing the body's ability to form new bone. Osteoporosis: Staying strong : Nature : Nature Research 2017-10-03T04:00:00Z The bone marrow is where the cells responsible for new bone formation - osteoblast cells - live. Obesity 'poses osteoporosis risk' 2013-07-16T04:02:47Z Clinical trials are already planned, but ultimately the researchers' aim is to discover which chemicals the stem cells are releasing that kick the osteoblasts into gear. 'Pregnancy fluid' reverses ageing bones - BBC News 2016-12-20T05:00:00Z The bony callus is then remodelled by osteoclasts and osteoblasts, with excess material on the exterior of the bone and within the medullary cavity being removed. Biology for AP Courses 2022-06-09T00:00:00Z The osteoblast is the bone cell responsible for forming new bone and is found in the growing portions of bone, including the periosteum and endosteum. Anatomy and Physiology 2013-06-19T00:00:00Z The researchers think that the departure of stem cells is caused by the disturbance of a group of bone-forming cells called osteoblasts. Painkillers Could Prove Helpful in Stem-Cell Transplants 2013-03-13T21:45:08.747Z Osteoclasts excavate small pits in old or cracked bone, whereas osteoblasts extrude into those pits a blend of soft collagen and other proteins, which they subsequently harden with calcium phosphate and other minerals. Cracks in the Test: Doctors Improve Osteoporosis Screens 2012-08-06T12:15:00.413Z One such cytokine, interleukin-17, causes inflammation by increasing the activity of osteoblasts and myeloma cells and thus encouraging bone degradation and tumour growth. Orthopaedics: Structural support 2011-12-14T18:21:16.733Z Bone remodeling involves the processes of bone deposition by osteoblasts and bone resorption by osteoclasts. Biology for AP Courses 2022-06-09T00:00:00Z If osteoblasts and osteocytes are incapable of mitosis, then how are they replenished when old ones die? Anatomy and Physiology 2013-06-19T00:00:00Z In addition, the DKK1 gene may aid the destruction of osteoblasts and the proliferation of osteoclasts, although the mechanism for the activation of the gene is unknown. Aetiology: The path to disease 2011-12-14T18:21:15.300Z Normally, cells called osteoclasts clear away old bone tissue while others called osteoblasts lay down new bone. Microenvironment: Neighbourhood watch 2011-12-14T18:21:10.780Z In healthy bone, there is a balance between the activity of cells that build up new bone tissue, called osteoblasts, and those that break it down, called osteoclasts. Orthopaedics: Structural support 2011-12-14T18:21:16.733Z There are three types of cells in bone: osteoblasts, osteocytes, and osteoclasts. Biology for AP Courses 2022-06-09T00:00:00Z The osteoblasts try to compensate but the new bone they lay down is weak and brittle and therefore prone to fracture. Anatomy and Physiology 2013-06-19T00:00:00Z In one series of studies, researchers showed that the molecule DKK1, produced by myeloma cells, plays a crucial role in causing the disease's characteristic bone damage by inhibiting bone-forming cells called osteoblasts. Animal models: Towards a myeloma mouse 2011-12-14T18:21:00.887Z They later found similar improvements by injecting the mice with osteoblast progenitor cells. Microenvironment: Neighbourhood watch 2011-12-14T18:21:10.780Z Myeloma cells upset this balance by promoting the activity of the destructive osteoclasts and inhibiting the work of osteoblasts, resulting in increased bone resorption. Orthopaedics: Structural support 2011-12-14T18:21:16.733Z Calcitonin decreases blood calcium levels by inhibiting osteoclasts, stimulating osteoblasts, and stimulating calcium excretion by the kidneys. Biology for AP Courses 2022-06-09T00:00:00Z Some of these cells will differentiate into capillaries, while others will become osteogenic cells and then osteoblasts. Anatomy and Physiology 2013-06-19T00:00:00Z In a short time lamellæ of bone were formed by the layer of osteoblasts, so that a small plate of bone was formed under the skin. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z Serotonin from the gut, on the other hand, keeps bone-making in check: it suppresses the osteoblasts from making fresh bone, but to the caustic osteoclasts is says neither yea nor nay. Basics: Job Description Grows for Our Utility Hormone 2011-05-02T22:05:21Z Stem cells must reach the site of the fracture, proliferate and turn into osteoblasts at the right moment. Orthopaedics: Plastic surgery 2010-12-29T10:57:07Z Secondary ossification centers form in the epiphyses as blood vessels and osteoblasts enter these areas and convert hyaline cartilage into spongy bone. Biology for AP Courses 2022-06-09T00:00:00Z Although they will ultimately be spread out by the formation of bone tissue, early osteoblasts appear in a cluster called an ossification center. Anatomy and Physiology 2013-06-19T00:00:00Z Over the next few months, bone cells called osteoblasts will fuse with the titanium to anchor those rods, he told her. Hollywood-style special effects give girl new ear 2010-12-20T21:34:23Z Throughout life a bone is continually being absorbed and reformed by the activity of the osteoblasts. Text Book of Biology, Part 1: Vertebrata His experimental observations appear to show that new bone is exclusively formed by the cellular elements or osteoblasts: these are found on the surface of the bone, lining the Haversian canals and in the marrow. Manual of Surgery Volume First: General Surgery. Sixth Edition. It involves the processes of bone deposition by osteoblasts and bone resorption by osteoclasts. Biology for AP Courses 2022-06-09T00:00:00Z Osteoclasts are continually breaking down old bone while osteoblasts are continually forming new bone. Anatomy and Physiology 2013-06-19T00:00:00Z "If you wiggle it while it's healing, that prevents those osteoblasts from growing in," Kaylie cautions. Hollywood-style special effects give girl new ear 2010-12-20T21:34:23Z The development of the latter is simple, the connective tissue corpuscles functioning by a simple change of product as osteoblast. Text Book of Biology, Part 1: Vertebrata The chief part in the regeneration of bone is played by the osteoblasts in the adjacent marrow and in the deeper layer of the periosteum. Manual of Surgery Volume First: General Surgery. Sixth Edition. This is similar to the endochondral formation of bone, as cartilage becomes ossified; osteoblasts, osteoclasts, and bone matrix are present. Biology for AP Courses 2022-06-09T00:00:00Z The ongoing balance between osteoblasts and osteoclasts is responsible for the constant but subtle reshaping of bone. Anatomy and Physiology 2013-06-19T00:00:00Z A therapeutic drug that inhibits osteoblast activity would be useful. Biology for AP Courses 2022-06-09T00:00:00Z An osteoblast engaged in the absorption instead of the formation of bone is called an osteoclast. Text Book of Biology, Part 1: Vertebrata It consists of two layers, an outer fibrous and an inner cellular layer; the cells, which are called osteoblasts, are continuous with those lining the Haversian canals and the medullary cavity. Manual of Surgery Volume First: General Surgery. Sixth Edition. Ossification is the process of bone formation by osteoblasts. Biology for AP Courses 2022-06-09T00:00:00Z Here, the osteoblasts form a periosteal collar of compact bone around the cartilage of the diaphysis. Anatomy and Physiology 2013-06-19T00:00:00Z One that enhances the bone formation activity of osteoblasts may also be a good strategy. Biology for AP Courses 2022-06-09T00:00:00Z One that enhances the bone formation activity of osteoblasts may also be a good strategy. Biology for AP Courses 2022-06-09T00:00:00Z We believe that it will avoid confusion in the study of the diseases of bone if the osteoblasts on the surface of the bone are still regarded as forming the deeper layer of the periosteum. Manual of Surgery Volume First: General Surgery. Sixth Edition. A therapeutic drug that inhibits osteoblast activity would be useful. Biology for AP Courses 2022-06-09T00:00:00Z Osteoclasts resorb old bone that lines the medullary cavity, while osteoblasts, via intramembranous ossification, produce new bone tissue beneath the periosteum. Anatomy and Physiology 2013-06-19T00:00:00Z Over the next several weeks, osteoclasts resorb the dead bone; osteogenic cells become active, divide, and differentiate into osteoblasts. Anatomy and Physiology 2013-06-19T00:00:00Z Inflammation can interfere with the function of osteoblasts, so consuming omega-3 fatty acids, in the diet or in supplements, may also help enhance production of new osseous tissue. Anatomy and Physiology 2013-06-19T00:00:00Z Blood vessels invade the resulting spaces, not only enlarging the cavities but also carrying osteogenic cells with them, many of which will become osteoblasts. Anatomy and Physiology 2013-06-19T00:00:00Z One that reduces the activity of osteoblasts may also be a good strategy. Biology for AP Courses 2022-06-09T00:00:00Z However, in adult life, bone undergoes remodeling, in which resorption of old or damaged bone takes place on the same surface where osteoblasts lay new bone to replace that which is resorbed. Anatomy and Physiology 2013-06-19T00:00:00Z Capillaries and osteoblasts from the diaphysis penetrate this zone, and the osteoblasts secrete bone tissue on the remaining calcified cartilage. Anatomy and Physiology 2013-06-19T00:00:00Z The hormone increases the activity of osteoblasts, which remove calcium from the blood and incorporate calcium into the bony matrix. Anatomy and Physiology 2013-06-19T00:00:00Z |
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