Results 91 to 100 of about 283,957 (335)

IN-VITRO STUDY ON STRUCTURAL CHANGES IN TYPE I COLLAGEN AS A RESULT OF EXPOSURE TO ORAL CAVITY CONDITIONS

open access: yesRomanian Journal of Medical and Dental Education, 2021
In the field of periodontal surgery, tissue grafting is generally used to accelerate the healing of bone defects, especially in the case of relatively large defects.
Alexandru Vlasa   +8 more
doaj  

Ecological Impact on Nitrogen and Phosphorus Cycling of a Widespread Fast-growing Leguminous Tropical Forest Plantation Tree Species, Acacia mangium

open access: yesDiversity, 2011
Symbiotic nitrogen fixation is one of the major pathways of N input to forest ecosystems, enriching N availability, particularly in lowland tropics. Recently there is growing concern regarding the wide areas of fast-growing leguminous plantations that ...
Shigehiro Ishizuka, Masahiro Inagaki
doaj   +1 more source

Resorption pattern and radiographic diagnosis of invasive cervical resorption

open access: yes, 2012
Summary The aim of this study was to evaluate, whether and how the histologic structure of invasive cervical resorption (external granulomas) affect their clinical radiographic diagnosis. For this purpose, nine more or less intact extracted teeth, of which intraoral radiographs were available, were processed for examination in the scanning electron ...
Luso, Sandra, Luder, Hans Ulrich
openaire   +2 more sources

Microphysiological Systems for Comorbidity Studies: Chronic Kidney Disease and Osteoarthritis

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights the potential of organ‐on‐a‐chip systems for studying comorbidities, using chronic kidney disease (CKD) and osteoarthritis (OA) as examples. It summarizes recent advances in kidney‐on‐a‐chip and joint‐on‐a‐chip models and discusses their current and potential application in investigating CKD, OA, and CKD‐OA comorbidity, aiming to
Mingying Han   +7 more
wiley   +1 more source

VIP treatment prevents embryo resorption by modulating efferocytosis and activation profile of maternal macrophages in the CBAxDBA resorption prone model [PDF]

open access: yes, 2016
Successful embryo implantation occurs followed by a local pro-inflammatory response subsequently shifted toward a tolerogenic one. VIP (vasoactive intestinal peptide) has embryotrofic, anti-inflammatory and tolerogenic effects.
Calo, Guillermina   +7 more
core   +1 more source

Conditioned Media from Mechanically Stimulated Macrophages Upregulate Osteogenic Genes in Human Mesenchymal Stromal Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Bone fracture healing is a complex, timely orchestrated scenario involving multiple cell types and a plethora of cytokines and regulatory factors. To gain further insight, an in vitro model to a) study macrophage polarization under mechanical load in a fibrin hydrogel and b) subsequently assess the effect of conditioned media derived from macrophages ...
Anne Géraldine Guex   +4 more
wiley   +1 more source

Mechanoregulation of bone remodeling and healing as inspiration for self-repair in materials

open access: yes, 2019
The material bone has attracted the attention of material scientists due to its fracture resistance and ability to self-repair. A mechanoregulated exchange of damaged bone using newly synthesized material avoids the accumulation of fatigue damage.
Eberl, C., Fratzl, P., Weinkamer, R.
core   +1 more source

Bone Resorption by Osteocytes

open access: yesExperimental Biology and Medicine, 1968
SummaryOsteocyte lacunae were measured in normal rats and in rats in which periosteal hypertrophy had been induced at the adductor longus-pectineus insertion. Lacunae in the cortex beneath the periosteal hypertrophy were significantly larger than lacunae in the cortex of the opposite side of the femur from the hypertrophy.
J. F. Shea   +3 more
openaire   +3 more sources

Si Inhibited Osteoclastogenesis: The Role of Fe and the Fenton Reaction

open access: yesAdvanced Healthcare Materials, EarlyView.
Silicate (Si) inhibition of osteoclastogenesis, is mediated by Fe. Si chemical interactions with Fe inhibit the Fenton reaction and intercellular ROS availability. This reduction in ROS availability inhibits osteoclastogenesis. The addition of Fe, in Si‐inhibited osteoclast cultures, restores the Fenton reaction, and osteoclastogenesis.
Yutong Li   +7 more
wiley   +1 more source

Nonsurgical management of horizontal root fracture associated external root resorption and internal root resorption

open access: yesIndian Journal of Dental Sciences, 2016
Horizontal root fractures, which frequently affect the upper incisors, usually result from a frontal impact. As a result, combined injuries occur in dental tissues such as the pulp, dentin, cementum, periodontal ligament, and alveolar bone. Internal root
Shiraz Pasha   +2 more
doaj   +1 more source

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