Results: 9

Unveiling the role of osteoblastic micro RNAs in the skeleton: from biological functions to therapeutic potential

Actual. osteol; 19 (1), 2023
MicroRNAs (miRNAs) are small non-coding RNA molecules that play critical roles in post-transcriptional gene regulation. They function by binding to target messenger RNA (mRNA) molecules, leading to their degradation or inhibiting their translation i...

DNA methylation analysis identifies key transcription factors involved in mesenchymal stem cell osteogenic differentiation

Biol. Res; 56 (), 2023
BACKGROUND: Knowledge about regulating transcription factors (TFs) for osteoblastogenesis from mesenchymal stem cells (MSCs) is limited. Therefore, we investigated the relationship between genomic regions subject to DNA-methylation changes during osteoblastogenesis and the TFs known to directly interact ...

Spontaneous spheroids from alveolar bone-derived mesenchymal stromal cells maintain pluripotency of stem cells by regulating hypoxia-inducible factors

Biol. Res; 56 (), 2023
BACKGROUND: Spontaneous spheroid culture is a novel three-dimensional (3D) culture strategy for the rapid and efficient selection of progenitor cells. The objectives of this study are to investigate the pluripotency and differentiation capability of spontaneous spheroids from alveolar bone-derived mesenc...

External morphology, postcranial and appendicular osteology of three southwestern Atlantic flatfishes ( Paralichthys, Paralichthyidae), and comparisons with other congeneric species

Neotrop. ichthyol; 16 (2), 2018
Comparisons of the external morphology and analysis of osteological features of the postcranial and appendicular skeletons of three southwestern Atlantic flatfish species of the genus Paralichthys (P. isosceles, P. orbignyanus and P. patagonicus) were carried out. Bones are described, and detailed morpho...

Displasia fibrosa ósea
Fibrous dysplasia of bone

Actual. osteol; 13 (3), 2017
La displasia fibrosa ósea es un trastorno no hereditario del desarrollo esquelético caracterizado por una proliferación anormal de fibroblastos y diferenciación deficiente de osteoblastos que conduce a un reemplazo del tejido óseo esponjoso por tejido conectivo fibroso. Es producida por una mutació...

MLO-Y4 osteocytic cell clones express distinct gene expression patterns characteristic of different stages of osteocyte differentiation

Actual. osteol; 13 (3), 2017
Osteocytes are the most abundant bone cell and are formed when osteoblasts become embedded in the bone matrix. Through changes in gene expression and paracrine effects, osteocytes regulate the number of osteoblasts, bone forming cells, and osteoclasts, bone resorbing cells, which are needed to maintain b...

Expression regulation and functional analysis of RGS2 and RGS4 in adipogenic and osteogenic differentiation of human mesenchymal stem cells

Biol. Res; 50 (), 2017
BACKGROUND: Understanding the molecular basis underlying the formation of bone-forming osteocytes and lipid-storing adipocytes will help provide insights into the cause of disorders originating in stem/progenitor cells and develop therapeutic treatments for bone- or adipose-related diseases. In this stud...

Avaliação histométrica e histoquímica de vidro bioativo no processo de reparação óssea

Os enxertos de origem autógena são osteogênicos e possuem como vantagens a produção de tecido ósseo originário do próprio organismo. A sua limitação é a grande morbidade cirúrgica. O biovidro é uma cerâmica bioativa com disponibilidade ilimitada que leva a uma cirurgia com menor morbidade. ...