keyword
MENU ▼
Read by QxMD icon Read
search

Tmd

keyword
https://www.readbyqxmd.com/read/28102375/the-dynamic-binding-of-cholesterol-to-the-multiple-sites-of-c99-as-revealed-by-coarse-grained-and-all-atom-simulations
#1
Cheng-Dong Li, Qin Xu, Ruo-Xu Gu, Jing Qu, Dong-Qing Wei
It is generally believed that the etiology of Alzheimer's disease (AD) is closely related to the amyloid-β polypeptides, produced from γ-secretase cleavage of C99. There is preliminary evidence that cholesterol directly activates γ-secretase cleavage of C99 through mechanisms that have not been understood so far. In this article, coarse-grained (CG) and all-atom (AT) simulations were employed to investigate the association between C99 and cholesterol, which is essential for our understanding of the role of cholesterol in the amyloidogenic pathway...
January 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28094865/long-term-side-effects-on-the-temporomandibular-joints-and-orofacial-function-in-patients-with-obstructive-sleep-apnea-treated-with-a-mandibular-advancement-device
#2
Sofie W Knappe, Merete Bakke, Palle Svanholt, Arne Petersson, Liselotte Sonnesen
Patients with obstructive sleep apnea (OSA) in long-term treatment with a mandibular advancement device (MAD) to increase the upper airway space, may develop changes in the temporomandibular joint (TMJ) and the orofacial function due to the protruded jaw position during sleep. The aim was to investigate the influence of long-term MAD treatment on the TMJs, orofacial function and occlusion. This prospective study included 30 men and 13 women (median age 54) with OSA (Apnoea-Hypopnoea Index (AHI): 7-57). They were examined with the Nordic Orofacial Test Screening (NOT-S), the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) and cone beam computed tomography (CBCT) of the TMJs...
January 17, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28094408/large-area-tungsten-disulfide-for-ultrafast-photonics
#3
Peiguang Yan, Hao Chen, Jinde Yin, Zihan Xu, Jiarong Li, Zike Jiang, Wenfei Zhang, Jinzhang Wang, Irene Ling Li, Zhipei Sun, Shuangchen Ruan
Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have attracted significant interest in various optoelectronic applications due to their excellent nonlinear optical properties. One of the most important applications of TMDs is to be employed as an extraordinary optical modulation material (e.g., the saturable absorber (SA)) in ultrafast photonics. The main challenge arises while embedding TMDs into fiber laser systems to generate ultrafast pulse trains and thus constraints their practical applications...
January 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28091541/apelin-receptor-homodimer-oligomers-revealed-by-single-molecule-imaging-and-novel-g-protein-dependent-signaling
#4
Xin Cai, Bo Bai, Rumin Zhang, Chunmei Wang, Jing Chen
The apelin receptor (APJ) belongs to family A of the G protein-coupled receptors (GPCRs) and is a potential pharmacotherapeutic target for heart failure, hypertension, and other cardiovascular diseases. There is evidence APJ heterodimerizes with other GPCRs; however, the existence of APJ homodimers and oligomers remains to be investigated. Here, we measured APJ monomer-homodimer-oligomer interconversion by monitoring APJ dynamically on cells and compared their proportions, spatial arrangement, and mobility using total internal reflection fluorescence microscopy, resonance energy transfer, and proximity biotinylation...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28084514/dental-angle-class-asymmetry-and-temporomandibular-disorders
#5
Daniele Manfredini, Luca Lombardo, Giuseppe Siciliani
OBJECTIVES: The aim of this study was to determine whether there is an association between the presence of asymmetric molar or canine Angle classes on the two sides and the presence of temporomandibular joint dysfunction (TMD). MATERIALS AND METHODS: Participants to the study were divided into two groups: TMD group (90 patients) or a control group (58 patients). In the TMD group, clinical assessment for TMD was performed according to the Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) guidelines by the same two trained examiners...
January 13, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28081371/gwas-identifies-new-loci-for-painful-temporomandibular-disorder
#6
A E Sanders, D Jain, T Sofer, K F Kerr, C C Laurie, J R Shaffer, M L Marazita, L M Kaste, G D Slade, R B Fillingim, R Ohrbach, W Maixner, T Kocher, O Bernhardt, A Teumer, C Schwahn, K Sipilä, R Lähdesmäki, M Männikkö, P Pesonen, M Järvelin, C M Rizzatti-Barbosa, C B Meloto, M Ribeiro-Dasilva, L Diatchenko, P Serrano, S B Smith
Temporomandibular disorder (TMD) is a musculoskeletal condition characterized by pain and reduced function in the temporomandibular joint and/or associated masticatory musculature. Prevalence in the United States is 5% and twice as high among women as men. We conducted a discovery genome-wide association study (GWAS) of TMD in 10,153 participants (769 cases, 9,384 controls) of the US Hispanic Community Health Study/Study of Latinos (HCHS/SOL). The most promising single-nucleotide polymorphisms (SNPs) were tested in meta-analysis of 4 independent cohorts...
January 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28068790/temporomandibular-disorders-old-ideas-and-new-concepts
#7
Thomas List, Rigmor Højland Jensen
Background Temporomandibular disorders (TMD) is an umbrella term for pain and dysfunction involving the masticatory muscles and the temporomandibular joints (TMJs). TMD is the most common orofacial pain condition. Its prominent features include regional pain in the face and preauricular area, limitations in jaw movement, and noise from the TMJs during jaw movements. TMD affects up to 15% of adults and 7% of adolescents. Chronic pain is the overwhelming reason that patients with TMD seek treatment. TMD can associate with impaired general health, depression, and other psychological disabilities, and may affect the quality of life of the patient...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28067369/a-study-of-the-effect-of-sonication-time-on-the-catalytic-performance-of-layered-ws2-from-various-sources
#8
Shi Xuan Leong, Carmen C Mayorga-Martinez, Zdeněk Sofer, Jan Luxa, Shu Min Tan, Martin Pumera
WS2 is a transition metal dichalcogenide (TMD) with many potential applications from catalysis to sensing, and is of interest both in its bulk and monolayer forms. There is discrepancy in the literature on the reported electrocatalytic effect of layered WS2. In this study, we examine two issues: the influence of the WS2 source and the effect of a common agitation technique via ultrasonication on the observed electrocatalysis. Bulk WS2 from five different chemical providers demonstrated different HER electrocatalytic performances...
January 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28063976/effect-of-jaw-opening-exercise-on-prevention-of-temporomandibular-disorders-pain-associated-with-oral-appliance-therapy-in-obstructive-sleep-apnea-patients-a-randomized-double-blind-placebo-controlled-trial
#9
Hiroyuki Ishiyama, Shusuke Inukai, Akira Nishiyama, Masayuki Hideshima, Shuhei Nakamura, Meiyo Tamaoka, Yasunari Miyazaki, Kenji Fueki, Noriyuki Wakabayashi
PURPOSE: There are no studies on the prevention of temporomandibular joint and/or masticatory muscle pain (TMD pain) associated with oral appliance (OA) therapy in patients with obstructive sleep apnea (OSA). The aim of this study was to determine the effect of jaw-opening exercise on TMD pain associated with OA therapy in OSA patients. METHODS: Twenty-five OSA patients without pain-related TMD were consecutively enrolled into a two-arm, randomized, double-blind, placebo-controlled trial...
January 4, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28060312/preparation-of-liquid-exfoliated-transition-metal-dichalcogenide-nanosheets-with-controlled-size-and-thickness-a-state-of-the-art-protocol
#10
Claudia Backes, Damien Hanlon, Beata M Szydlowska, Andrew Harvey, Ronan J Smith, Thomas M Higgins, Jonathan N Coleman
We summarize recent advances in the production of liquid-exfoliated transition metal dichalcogenide (TMD) nanosheets with controlled size and thickness. Layered crystals of molybdenum disulphide (MoS2) and tungsten disulphide (WS2) are exfoliated in aqueous surfactant solution by sonication. This yields highly polydisperse mixtures containing nanosheets with broad size and thickness distributions. However, for most purposes, specific sizes (in terms of both lateral dimension and thickness) are required. For example, large and thin nanosheets are desired for (opto) electronic applications, while laterally small nanosheets are interesting for catalytic applications...
December 20, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28054261/effectiveness-of-low-level-laser-therapy-on-pain-intensity-pressure-pain-threshold-and-sf-mpq-indexes-of-women-with-myofascial-pain
#11
Laís Valencise Magri, Vinícius Almeida Carvalho, Flávia Cássia Cabral Rodrigues, César Bataglion, Christie Ramos Andrade Leite-Panissi
Women with temporomandibular disorders (TMD) frequently report pain areas in body regions. This process is associated with central sensitization phenomena, present in chronic pain. The low-level laser therapy (LLLT) has been reported as a therapeutic option for the painful TMD treatment. The aim of this study was to analyze the effect of LLLT on pain intensity (visual analogue scale, VAS), pain sensitivity in orofacial and corporal points (pressure pain threshold, PPT), and on Short Form-McGill Pain Questionnaire (SF-MPQ) indexes of women with myofascial pain (subtype of muscle TMD)...
January 4, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28050980/prevalence-and-severity-of-temporomandibular-disorders-among-undergraduate-medical-students-in-association-with-khat-chewing
#12
Mohammed M Al Moaleem, Abdulmajeed S Okshah, Ahid A Al-Shahrani, Abdulkhaliq Ali F Alshadidi, Fawzia I Shaabi, Abdulaziz H Mobark, Khurshid A Mattoo
INTRODUCTION: The aim of this study was to assess the prevalence and severity of temporomandibular joint disorders (TMDs) among undergraduate medical students in the presence of khat chewing over a period of time. MATERIALS AND METHODS: Totally, 186 medical college students (age < 20 years) were randomly selected for the present study. The study subjects were divided into two groups according to age, under 20 and above 20 years. The study was based on Fonseca's anamnestic index and its questionnaire, which is composed of 10 questions and classifies the severity of TMDs...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28042448/statistical-analysis-of-the-frequency-distribution-of-signs-and-symptoms-of-patients-with-temporomandibular-disorders
#13
R Franco, M Basili, A Venditti, C Chiaramonte, L Ottria, A Barlattani, P Bollero
The purpose of this text is to evaluate the distribution by sex and age of TMD patients and the frequency of pain on palpation of the lateral pterygoid muscle, pterygoid internal, sternocleidomastoid, masseter, temporal. The purpose is also to assess the existence of direct correlations between the articulating click and lateral deviation, the headache and tenderness of the temporal, the back pain and tenderness of the sternocleidomastoid, the postural disorders and difficulty finding the exact mating closing, the disorders related to previous dental procedures (large conservative reconstructions, rehabilitations fixed dentures and dental extractions) and tenderness to the temporal and masseter...
October 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28036120/associations-of-pain-intensity-and-pain-related-disability-with-psychological-and-socio-demographic-factors-in-patients-with-temporomandibular-disorders-a-cross-sectional-study-at-a-specialized-dental-clinic
#14
Naichuan Su, Frank Lobbezoo, Arjen van Wijk, Geert J M G van der Heijden, Corine M Visscher
The study assessed whether psychological and socio-demographic factors, including somatization, depression, stress, anxiety, daytime sleepiness, optimism, gender and age are associated with pain intensity and pain-related disability in patients with temporomandibular disorders (TMD). In total, 320 TMD patients were involved in the study. The psychological status of each patient was assessed with questionnaires, including the Symptom Checklist-90 (SCL-90), Epworth Sleeping Scale (ESS), stress questionnaire, and Life Orientation Test-Revised (LOT-R)...
December 30, 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28034980/patients-with-concomitant-chronic-neck-pain-and-myofascial-pain-in-masticatory-muscles-have-more-widespread-pain-and-distal-hyperalgesia-than-patients-with-only-chronic-neck-pain
#15
Daniel Muñoz-García, Ibai Lopez-Uralde-Villanueva, Héctor Beltrán-Alacreu, Roy La Touche, Josué Fernández-Carnero
OBJECTIVE: Insufficient evidence exists to compare widespread pain (WP), pain sensibility, and psychological factors that occur in patients presenting with chronic neck pain (CNP) or a combination of temporomandibular disorder (TMD) and other complaints. The present study compared the pain sensibility and psychological factors of subjects with CNP with those with TMD + CNP. DESIGN: Cross-sectional study. SETTING: Local community. SUBJECTS: A nonprobabilistic convenience sample of 86 persons with CNP or TMD was recruited into three groups: CNP, TMD with myofascial pain in masticatory muscles with cocomitant CNP (TMD + CNP), and asymptomatic control groups consisted of 27, 29, and 30 participants, respectively...
December 29, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28032985/redox-exfoliation-of-layered-transition-metal-dichalcogenides
#16
Ali Jawaid, Justin Che, Lawrence F Drummy, John Bultman, Adam Waite, Ming-Siao Hsiao, Richard A Vaia
Transition Metal Dichalcogenides (TMDs) have attracted considerable attention in a diverse array of applications due to the breadth of possible property suites relative to other low dimensional nanomaterials (e.g. graphene, aluminosilicates). Here, we demonstrate an alternative methodology for the exfoliation of bulk crystallites of Group V-VII layered TMDs under quiescent, bench-top conditions using mild redox chemistry. Anionic polyoxometalate species generated from edge sites adsorb to the TMD surface and create coulombic repulsion that drives layer separation without the use of shear forces...
December 29, 2016: ACS Nano
https://www.readbyqxmd.com/read/28029778/aqueous-exfoliation-of-transition-metal-dichalcogenides-assisted-by-dna-rna-nucleotides-catalytically-active-and-biocompatible-nanosheets-stabilized-by-acid-base-interactions
#17
Miguel Ayán-Varela, Óscar Pérez-Vidal, Juan I Paredes, José M Munuera, Silvia Villar-Rodil, María Díaz-González, César Fernández-Sánchez, Virgilia S Silva, Mónica Cicuéndez, Mercedes Vila, Amelia Martínez-Alonso, Juan M D Tascón
The exfoliation and colloidal stabilization of layered transition metal dichalcogenides (TMDs) in an aqueous medium using functional biomolecules as dispersing agents have a number of potential benefits toward the production and practical use of the corresponding two-dimensional materials, but such a strategy has so far remained underexplored. Here, we report that DNA and RNA nucleotides are highly efficient dispersants in the preparation of stable aqueous suspensions of MoS2 and other TMD nanosheets at significant concentrations (up to 5-10 mg mL(-1))...
January 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28029259/contrasting-structural-reconstructions-electronic-properties-and-magnetic-orderings-along-different-edges-of-zigzag-transition-metal-dichalcogenide-nanoribbons
#18
Ping Cui, Jin-Ho Choi, Wei Chen, Jiang Zeng, Chih-Kang Shih, Zhenyu Li, Zhenyu Zhang
Two-dimensional transition metal dichalcogenides represent an emerging class of layered materials exhibiting various intriguing properties, and integration of such materials for potential device applications will necessarily invoke further reduction of their dimensionality. Using first-principles approaches, here we investigate the structural, electronic, and magnetic properties along the two different edges of zigzag MX2 (M=Mo, W; X=S, Se) nanoribbons. Along the M edges, we reveal a previously unrecognized but energetically strongly preferred (2x1) reconstruction pattern, which is universally operative for all the four systems (and possibly more), characterized by an elegant self-passivation mechanism through place exchanges of the outmost X and M edge atoms...
December 28, 2016: Nano Letters
https://www.readbyqxmd.com/read/28029109/highly-stable-2d-material-2dm-field-effect-transistors-fets-with-wafer-scale-multidyad-encapsulation
#19
Choong-Ki Kim, Eun Gyo Jeong, Eungtaek Kim, Jeong-Gyu Song, Youngjun Kim, Whang Je Woo, Myung Keun Lee, Hagyoul Bae, Seong-Bae Jeon, Hyungjun Kim, Kyung Cheol Choi, Yang-Kyu Choi
Field-effect transistors (FETs) composed of 2D materials (2DMs) such as transition-metal dichalcogenide (TMD) materials show unstable electrical characteristics in ambient air due to the high sensitivity of 2DMs to water adsorbates. In this work, in order to demonstrate the long-term retention of electrical characteristics of a TMD FET, a multidyad encapsulation method was applied to a MoS2 FET and thereby its durability was warranted for one month. It was well known that the multidyad encapsulation method was effective to mitigate high sensitivity to ambient air in light-emitting diodes (LEDs) composed of organic materials...
February 3, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28002094/the-association-between-headaches-and-temporomandibular-disorders-is-confounded-by-bruxism-and-somatic-complaints
#20
Hedwig A van der Meer, Caroline M Speksnijder, Raoul Engelbert, Frank Lobbezoo, Maria W G Nijhuis-van der Sanden, Corine M Visscher
OBJECTIVES: The objective of this observational study was to establish the possible presence of confounders on the association between temporomandibular disorders (TMD) and headaches in a patient population from a TMD and Orofacial Pain Clinic. METHODS: Several subtypes of headaches were diagnosed: self-reported headache, (probable) migraine, (probable) tension-type headache (TTH), and secondary headache attributed to TMD. The presence of TMD was subdivided into two subtypes: painful TMD and function-related TMD...
December 19, 2016: Clinical Journal of Pain
keyword
keyword
472
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"