Results 91 to 100 of about 38,030 (279)

Osteocytes as indicators of bone quality - multiscale structure-composition characterisation of the bone-implant interface [PDF]

, 2017
By virtue of certain design features, bone anchored metal implants can be made to elicit a strong initial osteogenic response, i.e., the amount of bone formed. While quantitative differences are often lost at longer follow up times, do differences in the
Shah, Furqan Ali
core   +1 more source

Microgravity, Bone Homeostasis, and Insulin-Like Growth Factor-1

Applied Sciences, 2020
Astronauts at are risk of losing 1.0–1.5% of their bone mass for every month they spend in space despite their adherence to high impact exercise training programs and diets high in nutrients, potassium, calcium, and vitamin D, all designed to preserve ...
John Kelly Smith
doaj   +1 more source

An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation

The Anatomical Record, EarlyView.
Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski, N. Adam Smith, Guinevere Rose Brown   +2 more
wiley   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Bone-Orchestrating Cells, Osteocytes [PDF]

, 2012
Osteocytes build up functional syncytia, i.e., the osteocytic lacunar-canalicular system（OLCS）. The osteocytes are interconnected through gap junctions between their cytoplasmic processes, which pass through narrow passageways referred to as osteocytic ...
Suzuki, Reiko, Masuki, Hideo, Hasegawa, Tomoka, Shimoji, Shinji, Amizuka, Norio, Kawanami, Masamitsu, Yamada, Tamaki, Yamamoto, Tsuneyuki, Hongo, Hiromi, Sasaki, Muneteru   +9 more
core  

miR-29b-3p regulated osteoblast differentiation via regulating IGF-1 secretion of mechanically stimulated osteocytes

Cellular & Molecular Biology Letters, 2019
Background Mechanical loading is an essential factor for bone formation. A previous study indicated that mechanical tensile strain of 2500 microstrain (με) at 0.5 Hz for 8 h promoted osteogenesis and corresponding mechanoresponsive microRNAs (miRs) were ...
Qiangcheng Zeng, Yang Wang, Jie Gao, Zhixiong Yan, Zhenghua Li, Xianqiong Zou, Yanan Li, Jiahui Wang, Yong Guo   +8 more
doaj   +1 more source

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

The Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros, John T. Cronin, Chad S. Mears, Brett W. Richards   +3 more
wiley   +1 more source

Enhancing human osteoblast to osteocyte-like cell differentiation using 25-hydroxyvitamin D3 and all-trans retinoic acid combination

European Cells & Materials
Background: The individual effects of the 25-hydroxyvitamin D3 (25(OH)D3) and all-trans retinoic acid (ATRA) on osteogenesis have been studied in two-dimensional (2D) in vitro models, but the combined effect of these vitamins remains largely unexplored ...
A Munir, AE Agger, A Samara, JE Reseland, LB Solberg   +4 more
doaj   +1 more source

Mechanosensation and transduction in osteocytes [PDF]

BoneKEy-Osteovision, 2006
There may be no single mechanoreceptor in osteocytes, but instead a combination of events that has to be triggered for mechanosensation and transduction of signal to occur. Possibilities include shear stress along dendritic processes and/or the cell body, cell deformation in response to strain, and primary cilia.
openaire   +2 more sources

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source