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Welcome to the Pubget Medical Subject Headings (MESH) browser. Click on a topic or subtopic below to explore related papers. In the gold box is the most recent paper about the current MESH term, and below are 20 related papers.
Stress, Mechanical (0):
Recent article
Stress, Mechanical
Abstract
We hypothesize that cell-scaffold interaction and mechanical deformation results in upregulation of genes related to osteogenic/chondrogenic differentiation and thus changes extracellular matrix (ECM) composition in human bone marrow mesenchymal stem cell (hBMSC)-derived tissue-engineered grafts. hB...
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PMID: 21554191
PDF is available here.
PDF is available here.
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Abstract
This work defines an incompressible, hyperelastic theory of anisotropic soft materials at finite strains, which is tested by application to the experimental response of fiber-reinforced rubber materials. The experimental characterization is performed using a uniaxial testing device w...
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PMID: 21783146
PDF is available here.
PDF is available here.
Dental update (38)6 2011
Abstract
Dental update (38)6 2011
Abstract
As adults increasingly seek orthodontic treatment, a growth has been witnessed in the demand for aesthetic orthodontics, the ultimate of which are appliances bonded to the lingual surfaces of the teeth. Development has spanned 30 years and many of the initial challenges faced with this approach have...
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PMID: 21905352
PDF is available here.
PDF is available here.
Abstract
We found that the ZA was converted to another type of AJ with punctate morphology (pAJ) at the margins of epithelial colonies. The F-actin-stabilizing protein EPLIN (epithelial protein lost in neoplasm), which functions to maintain the ZA via its association with αE-catenin, was lost in the pAJs. C...
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PMID: 21844208
PDF is available here.
PDF is available here.
Operative Dentistry (36)3 2011
Abstract
To evaluate the effect of adhesive temperature on the resin-dentin bond strength (μTBS), nanoleakage (NL), adhesive layer thickness (AL), and degree of conversion (DC) of ethanol/water- (SB) and acetone-based (PB) etch-and-rinse adhesive systems.
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PMID: 21851256
PDF is available here.
PDF is available here.
Operative Dentistry (36)3 2011
Abstract
To evaluate, through the application of different dentin bonding systems, the influence of wetness on shear bond strength in enamel.
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PMID: 21834710
PDF is available here.
PDF is available here.
Abstract
Low seeding efficiency and poor cell retention under flow-induced shear stress limit the effectiveness of in vitro endothelialization strategies for small-diameter vascular grafts. Primary-amine-rich plasma-polymerized coatings (PPE:N) deposited using low- and atmospheric-pressure pl...
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PMID: 21591258
PDF is available here.
PDF is available here.
Operative Dentistry (36)3 2011
Abstract
This study examined the cuspal deflection of maxillary premolars when either a bulk filling or incremental filling technique was employed using a range of composites with different elastic moduli.
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PMID: 21827222
PDF is available here.
PDF is available here.
Abstract
The purpose of this investigation was to determine the relationship between relative net vertical impulse and jump height in a countermovement jump and static jump performed to varying squat depths. Ten college-aged males with 2 years of jumping experience participated in this investigation (age: 23....
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PMID: 21844609
PDF is available here.
PDF is available here.
Abstract
Euler angle decomposition and inverse dynamics were used to determine the knee angles and net forces and moments applied to the tibia during kneeling and squatting with and without kneepads for 10 subjects in four postures: squatting (Squat), kneeling on the right knee (One Knee), bilateral kneeling...
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PMID: 21844612
PDF is available here.
PDF is available here.
Abstract
The purpose of this study was to identify alterations in preparatory muscle activation patterns across different drop heights in female athletes. Sixteen female high school volleyball players performed the drop vertical jump from three different drop heights. Surface electromyography of the quadricep...
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PMID: 21844610
PDF is available here.
PDF is available here.
Abstract
These results indicate that cells isolated from umbilical cord can be used to produce vascular constructs. Arterial constructs possessed superior mechanical properties when compared with venous constructs produced using cells isolated from the same human donor. This study highlights the fact that sm...
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PMID: 21457095
PDF is available here.
PDF is available here.
Acta Biomaterialia (7)8 2011
Abstract
We investigated the microstructures, Young's moduli, and tensile properties of metastable Ti-30Zr-(Cr, Mo) alloys subjected to solution treatment (ST) and cold rolling (CR). All the alloys comprise a β phase and small athermal ω phase, and they exhibit low Young's moduli after ST. During CR, defor...
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PMID: 21569873
PDF is available here.
PDF is available here.
Abstract
We found that the pneumatic method reached higher values of impaction hardness, contact stiffness and bulk density suggesting an increase in stability of the implant. No significant differences were found between the two different methods concerning the penetration resistance. The pneumatic method m...
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PMID: 21768627
PDF is available here.
PDF is available here.
Operative Dentistry (36)3 2011
Abstract
SUMMARY Repairing amalgam restorations with composite resins using surface conditioning methods is a conservative treatment approach. This study investigated the effects of different conditioning methods that could be used for repair of amalgam fractures. Amalgam (N=96) was condensed...
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PMID: 21740243
PDF is available here.
PDF is available here.
Operative Dentistry (36)3 2011
Abstract
I [conventional glass ionomer cement], Fuji Plus [resin-modified glass ionomer cement], Variolink II [conventional etch-and-rinse resin cement], Panavia F2.0 and Multilink [self-etch resin cements], and RelyX Unicem Aplicap and Maxcem [self-adhesive resin cements]). After water storage at 37°C for...
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PMID: 21740244
PDF is available here.
PDF is available here.
Operative Dentistry (36)3 2011
Abstract
I cavities were prepared in extracted human molars after removing occlusal enamel. Cavities were assigned into six different C-factors by applying nail polish to four walls, three walls, two walls adjacent to each other, two walls opposite to each other, one wall, or no walls. Resin composites with...
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PMID: 21740240
PDF is available here.
PDF is available here.
Abstract
Inaccuracies in the estimation of material properties and errors in the assignment of these properties into finite element models limit the reliability, accuracy, and precision of quantitative computed tomography (QCT)-based finite element analyses of the vertebra. In this work, a new mesh-independen...
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PMID: 21823740
PDF is available here.
PDF is available here.
Abstract
We analyzed the response of a stenotic trachea after a stent implantation. An endotracheal stent is the common treatment for tracheal diseases such as stenosis, chronic cough, or dispnoea episodes. Medical treatment and surgical techniques are still challenging due to the difficulties in overcoming...
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PMID: 21823742
PDF is available here.
PDF is available here.
Abstract
The facet joint contributes to the normal biomechanical function of the spine by transmitting loads and limiting motions via articular contact. However, little is known about the contact pressure response for this joint. Such information can provide a quantitative measure of the facet joint's local e...
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PMID: 21823743
PDF is available here.
PDF is available here.
Abstract
Cerebral aneurysms constitute a major medical challenge as treatment options are limited and often associated with high risks. Statistically, up to 3% of patients with a brain aneurysm may suffer from bleeding for each year of life. Eight percent of all strokes are caused by ruptured aneurysms. In or...
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PMID: 21823744
PDF is available here.
PDF is available here.
Abstract
Our hypothesis is that the experimental protocols influence the mechanical properties of both annulus fibrosus and nucleus pulposus. IVD extracted from bovine tails were tested in unconfined compression stress-relaxation experiments according to six different protocols, where for each protocol, the...
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PMID: 21823745
PDF is available here.
PDF is available here.
Abstract
We investigated the hypothesis that aortic valve biomechanics participate in the regulation of both 5HTR expression and interrelated extracellular matrix remodeling events....
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PMID: 21718840
PDF is available here.
PDF is available here.
Abstract
Abstract
The superficial tangential zone (STZ) plays a significant role in normal articular cartilage's ability to support loads and retain fluids. To date, tissue engineering efforts have not replicated normal STZ function in cartilage repairs. This finite element study examined the STZ's ro...
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PMID: 20700624
PDF is available here.
PDF is available here.
Abstract
We consider here polymeric scaffold-based perfusion bioreactors, where an interstitial fluid supplies nutrients and oxygen to the growing biomass. At the same time, the fluid-induced shear acts as a physiologically relevant stimulus for the metabolic activity of cells, provided that the shear stress...
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PMID: 20865436
PDF is available here.
PDF is available here.
Abstract
The control of the mechanical stimuli transmitted to the cells is critical for the design of functional scaffolds for tissue engineering. The objective of this study was to investigate the dynamics of the mechanical stimuli transmitted to the cells during tissue differentiation in an...
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PMID: 20865437
PDF is available here.
PDF is available here.
Abstract
We investigated the delivery of vascular endothelial growth factor (VEGF) and the effect on in vitro cultured human umbilical vein endothelial cells (HUVECs), in an attempt to provide experimental basis for promoting the vascularization of tissue-engineered bone grafts. A mechanical stimulator was d...
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PMID: 21341993
PDF is available here.
PDF is available here.
Abstract
The numerical predictions showed a good overall agreement between the calculated displacements of the motion measures from MRA images. The average position error comparing the calculated vs. actual displacements of the femoropopliteal intersection measured on the MRA was 8±4 mm. Two of the 8 subje...
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PMID: 21679081
PDF is available here.
PDF is available here.
Abstract
This paper presents a formulation for the three-dimensional numerical simulation of mechanically regulated bone adaptation. Attention is focussed on a phenomenologically-based approach to bone remodelling that can be used as a computationally efficient tool to provide insight into th...
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PMID: 21616467
PDF is available here.
PDF is available here.
Journal of Trauma (70)6 2011
Abstract
We investigated the effectiveness of a mesenchymal stem cell (MSC)/hydroxyapatite/type I collagen hybrid graft for posterolateral spinal fusion in a rabbit model.
In vitro study, the hybrid graft was cultured in complete or osteogenic medium for 7 days and 14 days and examined by sca...
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PMID: 21817989
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to evaluate the influence of immersion in a 0.2% peracetic acid-based disinfectant on the three-point flexural strength, water sorption and water solubility of an indirect composite resin. Specimens were produced according to ISO 4049:2000 specifications and were divided in...
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PMID: 21780726
PDF is available here.
PDF is available here.
Abstract
To study the effect of thermal fatigue on the microTBS and interfacial morphology of three ethanol-based etch-&-rinse 2-bottle adhesives.
microTBS - 24 third molars were randomly assigned to one of three adhesive systems: (1) Adper Single Bond Plus (SBP, 3M ESPE); (2)...
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PMID: 21874936
PDF is available here.
PDF is available here.
Abstract
To characterize the surface roughness of human dentin prepared with different rotary instruments and its influence on the micro-tensile bond strength (microTBS) of self-etch adhesives.
Dentin surfaces were created from mid-coronal sound dentin in extracted, human thir...
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PMID: 21874939
PDF is available here.
PDF is available here.
Biomedical Materials (6)3 2011
Abstract
A key step during the synthesis of collagen constructs is the incubation of monomeric collagen in phosphate buffer saline (PBS) to promote fibrillogenesis in the collagen network. Optimal PBS-treatment conditions for monomeric collagen solutions to induce gelation are well establishe...
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PMID: 21540522
PDF is available here.
PDF is available here.
Biomedical Materials (6)3 2011
Abstract
Tendon disorders are common clinical conditions. Tendon tissue engineering provides a new approach for tendon repair by integrating engineered substitutes with their native counterparts. Silk is considered to be a promising candidate for tendon engineering because of its biological a...
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PMID: 21555843
PDF is available here.
PDF is available here.
Abstract
Multiple length scales are involved in the development of traumatic brain injury, where the global mechanics of the head level are responsible for local physiological impairment of brain cells. In this study, a relation between the mechanical state at the tissue level and the cellula...
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PMID: 20635116
PDF is available here.
PDF is available here.
Nature Materials (10)6 2011
Abstract
We report here maps of these stresses within and between cells comprising a monolayer. Within the cell sheet there arise unanticipated fluctuations of mechanical stress that are severe, emerge spontaneously, and ripple across the monolayer. Within that stress landscape, local cellular migrations fol...
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PMID: 21602808
PDF is available here.
PDF is available here.
Abstract
We developed a method of applying vibration to the impaction bone grafting process and assessed its effect on the mechanical properties of the impacted graft. Washed morsellised bovine femoral heads were impacted into shear test rings. A range of frequencies of vibration was tested, as measured using...
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PMID: 21586773
PDF is available here.
PDF is available here.
Abstract
We studied the effects of hyperbaric oxygen (HBO) and zoledronic acid (ZA) on posterior lumbar fusion using a validated animal model. A total of 40 New Zealand white rabbits underwent posterior lumbar fusion at L5-6 with autogenous iliac bone grafting. They were divided randomly into four groups as f...
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PMID: 21586779
PDF is available here.
PDF is available here.
Abstract
We conditionally deleted Pkd1 in mature osteoblasts/osteocytes by crossing Dmp1-Cre with Pkd1(flox/m1Bei) mice, in which the m1Bei allele is nonfunctional. We assessed in wild-type and Pkd1-deficient mice the response to mechanical loading in vivo by ulna loading and ex vivo by measuring the respons...
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PMID: 21454365
PDF is available here.
PDF is available here.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (369)1944 2011
Abstract
The effect of a slit-like confinement on the relaxation dynamics of DNA is studied via a mesoscale model in which a bead and spring model for the polymer is coupled to a particle-based Navier-Stokes solver (multi-particle collision dynamics). The confinement is found to affect the equilibrium stretch...
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PMID: 21536580
PDF is available here.
PDF is available here.
Abstract
We assessed the importance of glycosaminoglycans and sulfur-mediated bonds for the mechanical properties of lens capsules by comparing the stress-strain responses from control and treated pairs of bovine source. No significant change in mechanical properties was observed upon reduction of disulfide b...
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PMID: 21539774
PDF is available here.
PDF is available here.
Abstract
We theoretically modeled the interactions between phospholipid membranes and compared this model with our experimental results on membranes doped with Le(X) lipids. We demonstrated that the bending rigidity, extracted from the off-specular scattering signals, is not significantly influenced by the m...
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PMID: 21539782
PDF is available here.
PDF is available here.
Abstract
Few studies have investigated bone microarchitecture and biomechanical properties in men. This study assessed in vivo both aspects in a population of 185 men (aged 71 ± 10 years) with prevalent fragility fractures, compared to 185 controls matched for age, height, and weight, from the Structure...
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PMID: 21541999
PDF is available here.
PDF is available here.
Abstract
A new class of biomimetic, bioresorbable apatitic calcium phosphate cement (CPC) was recently developed. The handling characteristics, and the ability to harden at body temperature in the presence of physiological saline, make this material an attractive clinical bone substitute and...
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PMID: 21384543
PDF is available here.
PDF is available here.
Audio, Transactions of the IRE Professional Group on (142 Suppl 2) 2011
Abstract
The authors analyzed the in vitro and in vivo performance of lithium disilicate glass-ceramic (LDGC) restorations and yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) (that is, zirconium oxide) restorations with regard to reliability, clinical performance and abrasion resistance.
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PMID: 21454834
PDF is available here.
PDF is available here.
Abstract
Coda wave interferometry is a recent analysis method now widely used in seismology. It uses the increased sensitivity of multiply scattered elastic waves with long travel-times for monitoring weak changes in a medium. While its application for structural monitoring has been shown to work under labora...
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PMID: 21476650
PDF is available here.
PDF is available here.
Abstract
The median POF (IQR; absolute range) required to dislodge each bridging stent-graft from the 6-mm renal branch was 1.89 N (0.47 N; 1.65-2.5) for the 7-mm Viabahn, 1.17 N (0.39 N; 0.68-1.57 N) for the 7-mm Fluency, and 2.08 N (0.49 N; 1.59-2.62 N) for the 7-mm Fluency with a supporting 8-mm Zilver st...
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PMID: 21521056
PDF is available here.
PDF is available here.
Abstract
Abstract In current clinical practice, aneurysm diameter is one of the primary criteria used to decide when to treat a patient with an abdominal aortic aneurysm (AAA). It has been shown that simple association of aneurysm diameter with the probability of rupture is not sufficient, an...
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PMID: 21521062
PDF is available here.
PDF is available here.
Abstract
Abstract
A finite-element (FE) model of human skin is proposed for future use in an interactive real-time surgical simulation to teach surgeons procedures, such as facial reconstruction using skin-flap repair. For this procedure, skin is cut into flaps that are stretched to cover openings in the face. Thus, t...
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PMID: 20172812
PDF is available here.
PDF is available here.
Abstract
We developed and applied an in vitro system to determine whether fibrocartilage can develop under a state of periodic hydrostatic tension in which only a single principal component of stress is compressive. This question is vital to efforts to mechanically guide morphogenesis and matrix expression i...
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PMID: 21091338
PDF is available here.
PDF is available here.
Abstract
To create a 3-dimensional finite element model of knee ligaments and to analyse the stress changes of lateral collateral ligament (LCL) with or without displaced movements at different knee flexion conditions.
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PMID: 21453572
PDF is available here.
PDF is available here.
Abstract
We present the early results of the use of this prosthesis for established isolated patellofemoral arthritis in 51 consecutive patellofemoral replacements in 35 patients. The mean follow-up was 25 months (5 to 60). The estimated survival rate at three years was 63% (95% confidence interval 47 to 80)...
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PMID: 21464487
PDF is available here.
PDF is available here.
Abstract
We performed 241 primary total knee replacements in 204 patients using the e.motion posterior cruciate-retaining, multidirectional mobile-bearing prosthesis. Of these, 100 were carried out using an image-free navigation system, and the remaining 141 with the conventional technique. We conducted a re...
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PMID: 21464486
PDF is available here.
PDF is available here.
Abstract
We discuss the mechanisms regulating Sirt1 activity and expression in skeletal muscles, emphasizing their implications in muscle physiology and the impairment of muscle function with age....
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PMID: 21483036
PDF is available here.
PDF is available here.
Abstract
The present study was designed to analyze strain distributions caused by varying the fixture-abutment design and fixture alignment.
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PMID: 21448016
PDF is available here.
PDF is available here.
Abstract
New modified mini-implants have recently come into use for reinforcing skeletal anchorage in orthodontic application. The aim of this study was to investigate the influence of the design of a mini-implant on its mechanical strength.
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PMID: 21448023
PDF is available here.
PDF is available here.