نتایج جستجو برای: osteocytes

تعداد نتایج: 2034  

2017
Osamu Fujii Sawako Tatsumi Mao Ogata Tomohiro Arakaki Haruna Sakaguchi Kengo Nomura Atsumi Miyagawa Kayo Ikuta Ai Hanazaki Ichiro Kaneko Hiroko Segawa Ken-ichi Miyamoto

In response to kidney damage, osteocytes increase the production of several hormones critically involved in mineral metabolism. Recent studies suggest that osteocyte function is altered very early in the course of chronic kidney disease. In the present study, to clarify the role of osteocytes and the canalicular network in mineral homeostasis, we performed four experiments. In Experiment 1, we ...

Journal: :Current Opinion in Orthopaedics 2005

2015
Matthew Prideaux Sarah L. Dallas Ning Zhao Erica D. Johnsrud Patricia A. Veno Dayong Guo Yuji Mishina Stephen E. Harris Lynda F. Bonewald

Parathyroid Hormone (PTH) can exert both anabolic and catabolic effects on the skeleton, potentially through expression of the PTH type1 receptor (PTH1R), which is highly expressed in osteocytes. To determine the cellular and molecular mechanisms responsible, we examined the effects of PTH on osteoblast to osteocyte differentiation using primary osteocytes and the IDG-SW3 murine cell line, whic...

Journal: :Advanced Materials Interfaces 2023

Polar 2D Polymer Crystals In article 2300333, Kathryn Grandfield and co-workers show osteocytes, the bone cells responsible for signaling growth maintenance, together with their cell processes (canaliculi) connecting in vicinity of a porous titanium dental implant interface. Captured by focused ion beam 3D imaging, are segmented analyzed to determine orientation respect newly forming bone.

2017
Danielle Tokarz Richard Cisek Marc N Wein Raphaël Turcotte Christa Haase Shu-Chi A Yeh Srinidhi Bharadwaj Anthony P Raphael Hari Paudel Clemens Alt Tzu-Ming Liu Henry M Kronenberg Charles P Lin

Osteocytes are the most abundant cell in the bone, and have multiple functions including mechanosensing and regulation of bone remodeling activities. Since osteocytes are embedded in the bone matrix, their inaccessibility makes in vivo studies problematic. Therefore, a non-invasive technique with high spatial resolution is desired. The purpose of this study is to investigate the use of third ha...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Xiaolin Tu Jesus Delgado-Calle Keith W Condon Marta Maycas Huajia Zhang Nadia Carlesso Makoto M Taketo David B Burr Lilian I Plotkin Teresita Bellido

Osteocytes, >90% of the cells in bone, lie embedded within the mineralized matrix and coordinate osteoclast and osteoblast activity on bone surfaces by mechanisms still unclear. Bone anabolic stimuli activate Wnt signaling, and human mutations of components along this pathway underscore its crucial role in bone accrual and maintenance. However, the cell responsible for orchestrating Wnt anaboli...

Journal: :Bone 2016
Emmanuel J Jáuregui Omar Akil Claire Acevedo Faith Hall-Glenn Betty S Tsai Hrishikesh A Bale Ellen Liebenberg Mary Beth Humphrey Robert O Ritchie Lawrence R Lustig Tamara Alliston

Bone remodeling, a combination of bone resorption and formation, requires precise regulation of cellular and molecular signaling to maintain proper bone quality. Whereas osteoblasts deposit and osteoclasts resorb bone matrix, osteocytes both dynamically resorb and replace perilacunar bone matrix. Osteocytes secrete proteases like matrix metalloproteinase-13 (MMP13) to maintain the material qual...

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