Results: 17

Acciones óseas de las hormonas de la neurohipófisis
Bone actions of neuro hypophyseal hormones

Actual. osteol; 16 (2), 2020
La oxitocina (OXT) como la arginina-vasopresina (AVP) son dos hormonas primitivas secretadas por la hipófisis posterior. Sus receptores están mucho más ampliamente distribuidos en el organismo de lo que se pensaba originalmente, incluido el hueso. En los estudios preclínicos, la OXT ha mostrado ser a...

Effect of focal adhesion kinase inhibition on osteoblastic cells grown on titanium with different topographies

J. appl. oral sci; 28 (), 2020
Abstract Objective The present study aimed to investigate the participation of focal adhesion kinases (FAK) in interactions between osteoblastic cells and titanium (Ti) surfaces with three different topographies, namely, untreated (US), microstructured (MS), and nanostructured (NS). Methodology Osteo...

Updating the role of matrix metalloproteinases in mineralized tissue and related diseases

J. appl. oral sci; 27 (), 2019
Abstract Bone development and healing processes involve a complex cascade of biological events requiring well-orchestrated synergism with bone cells, growth factors, and other trophic signaling molecules and cellular structures. Beyond health processes, MMPs play several key roles in the installation of ...

MicroRNA-221 promotes cell proliferation, migration, and differentiation by regulation of ZFPM2 in osteoblasts

Braz. j. med. biol. res; 51 (12), 2018
Bone fracture is a common medical condition, which may occur due to traumatic injury or disease-related conditions. Evidence suggests that microRNAs (miRNAs) can regulate osteoblast differentiation and function. In this study, we explored the effects and mechanism of miR-221 on the growth and migration o...

Systemic melatonin application increases bone formation in mandibular distraction osteogenesis

Abstract This study aimed to investigate the effects of different doses of systemic melatonin application on new bone formation during mandibular distraction osteogenesis (DO) in rats. Mandibular DO was performed on 30 adult female Sprague-Dawley rats, which were randomly divided into three groups: contr...

Marcadores de formación y resorción ósea y su utilidad para determinar el final del periodo de aposición ósea
Bone formation and resorption markers to evaluate the end of bone apposition

Actual. osteol; 13 (1), 2017
El pico de masa ósea (PMO) se alcanza entre los 20 y 35 años, pero la aposición ósea continúa hasta alcanzar el pico de fortaleza ósea (PFO). Se crea así una ventana entre ambos picos que podría ser evaluada mediante marcadores bioquímicos de recambio óseo, ya que durante dicho período la dens...

Mecanismos intracelulares induzidos por leucotrienos durante a diferenciação osteogênica

Os leucotrienos (LTs) são mediadores inflamatórios derivados da via 5- lipoxigenase (5-LO), com contribuição relevante na reabsorção óssea. Neste estudo investigamos o papel dos LTs na diferenciação osteogênica e o seu impacto na osteoclatogênese. Assim, foi avaliado o perfil ósseo dos camund...

Aging impairs osteoblast differentiation of mesenchymal stem cells grown on titanium by favoring adipogenesis

J. appl. oral sci; 24 (4), 2016
ABSTRACT Aging negatively affects bone/titanium implant interactions. Our hypothesis is that the unbalance between osteogenesis and adipogenesis induced by aging may be involved in this phenomenon. Objective We investigated the osteoblast and adipocyte differentiation of mesenchymal stem cells (MSCs) f...