Results 61 to 70 of about 11,689 (233)

Modulation of fixation stiffness from flexible to stiff in a rat model of bone healing

open access: yesActa Orthopaedica, 2017
Background and purpose — Constant fixator stiffness for the duration of healing may not provide suitable mechanical conditions for all stages of bone repair.
Nicole Bartnikowski   +8 more
doaj   +1 more source

Alloxan-induced diabetes delays repair in a rat model of closed tibial fracture [PDF]

open access: yes, 2008
A closed fracture was performed on the left tibia of 3-month-old Wistar rats weighing 250 to 350 g that were either healthy (N = 24) or made diabetic with alloxan (N = 24) to investigate the effect of alloxan-induced diabetes on the course of bone ...
Amorim, F. P. L. G.   +6 more
core   +4 more sources

CGRP Enhances the Regeneration of Bone Defects by Regulating Bone Marrow Mesenchymal Stem Cells Through Promoting ANGPTL4 Secretion by Bone Blood Vessels

open access: yesAdvanced Science, EarlyView.
ABSTRACT Bone angiogenesis is important for bone formation and regeneration after bone injury. Endothelial‐derived angiogenic factors are key signal transducers in the bone microenvironment and maintain vascular–osteogenic coupling during bone regeneration.
Qiong Lu   +9 more
wiley   +1 more source

Histological Evaluation for the Use of β-Tricalcium Phosphate as a Bone Substitute in Accelerating Bone Healing: An Experimental Study on Rabbits [PDF]

open access: yesAl-Rafidain Dental Journal, 2014
Aims: The present study designed to assess the effects of a bone substitute consisting of β-Tricalcium Phosphate (β-TCP) on acceleration of bone healing of surgically created defects. Materials and Methods: Ten rabbits were included in the study.
Atalla F Rejab   +2 more
doaj   +1 more source

Growth, age and size of the Jurassic pachycormid Leedsichthys problematicus (Osteichthyes: Actinopterygii) [PDF]

open access: yes, 2013
The Jurassic pachycormid osteichthyan Leedsichthys problematicus is renowned for having been able to achieve prodigious size for a bony fish. Building on work of MARTILL (1986a), a thorough examination of all known material was conducted in order to ...
Adams, C.   +3 more
core  

Biocompatibility and healing patterns in experimentally induced canine tibial fractures using Pedicle screw‐Rod external fixation

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study demonstrates that using a Pedicle screw‐Rod configuration for the external fixation of non‐articular tibial osteotomy aligns well with the principles of biological osteosynthesis, resulting in secondary bone healing characterized by callus formation and neovascularization.
Mohammad Mahdi Gooran   +3 more
wiley   +1 more source

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning

open access: yesThe Anatomical Record, EarlyView.
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit   +6 more
wiley   +1 more source

Several occurrences of osteomyelitis in dinosaurs from a site in the Bauru Group, Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigates the occurrence of osteomyelitis in non‐avian dinosaurs, focusing on the Ibirá locality, a site with a high incidence of this pathological condition. We analyzed six new osteopathic sauropod specimens from the Upper Cretaceous of Brazil.
Tito Aureliano   +3 more
wiley   +1 more source

Distraction-like phenomena in maxillary bone due to application of orthodontic forces in ovariectomized rats

open access: yesIndian Journal of Dental Research, 2012
Background: Orthodontic forces may not only influence the dentoalveolar system, but also the adjacent and surrounding cortical bone. Aim: Since there is very limited information on this issue, we aimed to study the possible changes in maxillary ...
Apostolos I Tsolakis   +4 more
doaj   +1 more source

Seizure or child abuse?

open access: yesRevista de la Facultad de Medicina Humana, 2021
More child abuse cases are reported in Peru every year; however, there is no official report that describes the actual incidence, especially of the most vulnerable population such as infants.
Consuelo del Rocio Luna Muñoz   +3 more
doaj   +1 more source

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