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https://www.readbyqxmd.com/read/28528863/cross-linking-of-a-biopolymer-peptide-co-assembling-system
#1
Karla E Inostroza-Brito, Estelle C Collin, Anna Poliniewicz, Sherif Elsharkawy, Alistair Rice, Armando E Del Río Hernández, Xin Xiao, José Rodríguez-Cabello, Alvaro Mata
The ability to guide molecular self-assembly at the nanoscale into complex macroscopic structures could enable the development of functional synthetic materials that exhibit properties of natural tissues such as hierarchy, adaptability, and self-healing. However, the stability and structural integrity of these kinds of materials remains a challenge for many practical applications. We have recently developed a dynamic biopolymer-peptide co-assembly system with the capacity to grow and undergo morphogenesis into complex shapes...
May 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28527847/self-repaired-process-of-a-traumatized-maxillary-central-incisor-with-pulp-infarct-after-horizontal-root-fracture-monitored-by-laser-doppler-flowmetry-combined-with-tissue-oxygen-monitor
#2
Qian Liao, Wenjun Ye, Junli Yue, Xiaoxi Zhao, Ling Zhang, Lan Zhang, Dingming Huang, Qinghua Zheng
Achieving a precise diagnosis of the pulp status of traumatized teeth is difficult. The time to interfere through endodontic treatment for these teeth is greatly dependent on the doctor's experience. A 24-year-old male patient suffered a traumatic injury to tooth #9 that resulted in an apical root horizontal fracture 3 days before he came to the hospital. The injured tooth showed no response to pulp sensitivity testing at the first visit and was discolored 1 week later. Tooth #9 was immobilized to its adjacent teeth for 4 weeks by a composite splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28526371/the-psychosocial-needs-of-adolescent-males-following-interpersonal-assault
#3
Rachel K Myers, Laura Vega, Alison J Culyba, Joel A Fein
PURPOSE: We examined the self-identified, postassault psychosocial needs of male adolescents to guide recovery and healing after being seen in an emergency department (ED) for a violence-related injury. METHODS: We analyzed deidentified data from 49 adolescent male adolescents who participated in a postdischarge case management program following a violence-related injury. Descriptive statistics summarized youths' demographic characteristics and self-identified needs and goals for postassault recovery...
May 8, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28525280/self-healing-self-assembled-%C3%AE-sheet-peptide-poly-%C3%AE-glutamic-acid-hybrid-hydrogels
#4
David E Clarke, E Thomas Pashuck, Sergio Bertazzo, Jonathan V M Weaver, Molly M Stevens
Self-assembled biomaterials are an important class of materials that can be injected and formed in situ. However, they often are not able to meet the mechanical properties necessary for many biological applications, losing mechanical properties at low strains. We synthesized hybrid hydrogels consisting of a poly(γ-glutamic acid) polymer network physically cross-linked via grafted self-assembling β-sheet peptides to provide non-covalent cross-linking through β-sheet assembly, reinforced with a polymer backbone to improve strain stability...
May 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28523744/bioinspired-ultratough-hydrogel-with-fast-recovery-self-healing-injectability-and-cytocompatibility
#5
Sara Azevedo, Ana M S Costa, Amanda Andersen, Insung S Choi, Henrik Birkedal, João F Mano
Inspired by the mussel byssus adhesiveness, a highly hydrated polymeric structure is designed to combine, for the first time, a set of interesting features for load-bearing purposes. These characteristics include: i) a compressive strength and stiffness in the MPa range, ii) toughness and the ability to recover it upon successive cyclic loading, iii) the ability to quickly self-heal upon rupture, iv) the possibility of administration through minimally invasive techniques, such as by injection, v) the swelling ratio being adjusted to space-filling applications, and vi) cytocompatibility...
May 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28522945/current-status-of-endoscopic-balloon-dilation-for-crohn-s-disease
#6
REVIEW
Fumihito Hirai
The therapeutic target in Crohn's disease (CD) has been raised to the achievement of mucosal healing. Although effective treatments that target cytokines and other molecules has been widely used for CD, intestinal strictures are still a major cause of surgery. Endoscopic balloon dilation (EBD) is known to be an effective and safe intervention for intestinal strictures in CD. Since frequent intestinal resection often results in short bowel syndrome and can decrease the quality of life, EBD can help avoid surgery...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28522411/halloysite-and-chitosan-oligosaccharide-nanocomposite-for-wound-healing
#7
Giuseppina Sandri, Carola Aguzzi, Silvia Rossi, Maria Cristina Bonferoni, Giovanna Bruni, Cinzia Boselli, Antonia Icaro Cornaglia, Federica Riva, Cesar Viseras, Carla Caramella, Franca Ferrari
Halloysite is a natural nanotubular clay mineral (HNTs, Halloysite Nano Tubes) chemically identical to kaolinite and, due to its good biocompatibility, is an attractive nanomaterial for a vast range of biological applications. Chitosan oligosaccharides are homo- or heterooligomers of N-acetylglucosamine and D-glucosamine, that accelerate wound healing by enhancing the functions of inflammatory and repairing cells. The aim of the work was the development of a nanocomposite based on HNTs and chitosan oligosaccharides, to be used as pour powder to enhance healing in the treatment of chronic wounds...
May 15, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28516480/development-and-feasibility-of-smartphone-application-for-cognitive-behavioural-case-management-of-individuals-with-early-psychosis
#8
Sung-Wan Kim, Ga-Young Lee, Hye-Young Yu, Eun-I Jung, Ju-Yeon Lee, Seon-Young Kim, Jae-Min Kim, Il-Seon Shin, Jin-Sang Yoon
BACKGROUND: This article describes the development of the smartphone application for cognitive-behavioural case management of young individuals with early psychosis and examines the acceptance and potential clinical benefits of this application through a pilot survey. METHODS: Gwangju Bukgu-Community Mental Health Center developed and launched a smartphone application (Heal Your Mind [HYM]) for cognitive-behavioural case management and symptom monitoring. The HYM application for clients includes 6 main modules including thought record, symptom record, daily life record, official notices, communication and scales...
May 18, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28515083/self-healing-capacity-of-deep-sea-ecosystems-affected-by-petroleum-hydrocarbons-understanding-microbial-oil-degradation-at-hydrocarbon-seeps-is-key-to-sustainable-bioremediation-protocols
#9
Alberto Scoma, Michail M Yakimov, Daniele Daffonchio, Nico Boon
No abstract text is available yet for this article.
May 17, 2017: EMBO Reports
https://www.readbyqxmd.com/read/28514935/mesenchymal-stem-cell-based-cartilage-regeneration-approach-and-cell-senescence-can-we-manipulate-cell-aging-and-function
#10
Marta Anna Szychlinska, Martin James Stoddart, Ugo D'Amora, Luigi Ambrosio, Mauro Alini, Giuseppe Musumeci
Aging is the most prominent risk factor triggering several degenerative diseases, such as Osteoarthritis (OA). Due to its poor self-healing capacity, once injured cartilage needs to be re-established. This process mighmight be approached bythrough resorting to cell-based therapies and/or tissue engineering. Human mesenchymal stem cells (hMSC) represent a promising approach due to their chondrogenic differentiation potential. Presently, in vitro chondrogenic differentiation of MSCs is limited by two main reasons: Aging aging of MSCs, which determines the loss of cell proliferative and differentiationed capacity and MSC-derived chondrocyte hypertrophic differentiation, which limits the use of these cells in cartilage tissue regeneration approach...
May 17, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28514528/overcoming-the-instability-of-nanoparticle-based-catalyst-films-in-alkaline-electrolysers-by-self-assembling-and-self-healing-films
#11
Stefan Barwe, Justus Masa, Corina Andronescu, Bastian Mei, Wolfgang Schuhmann, Edgar Ventosa
Engineering stable electrodes using highly active catalyst nanopowders for electrochemical water splitting remains a notorious challenge. We report an innovative and general approach for attaining highly stable catalyst films with self-healing capability based on in-situ self-assembly of catalyst particles during electrolysis. The catalyst particles are added to the electrolyte forming a suspension that is pumped through the electrolyzer. Particles with negatively charged surfaces stick onto the anode, while particles with positively charged surfaces stick to the cathode...
May 17, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28513187/stress-and-response-to-treatment-insights-from-a-pilot-study-using-a-4-week-contemplative-self-healing-meditation-intervention-for-posttraumatic-stress-in-breast-cancer
#12
Emanuela Offidani, Janey C Peterson, Joseph Loizzo, Anne Moore, Mary E Charlson
Along with symptoms of anxiety and depression, many breast cancer survivors experience symptoms of posttraumatic stress disorder (PTSD) that may worsen in the setting of other stressful life events. The aim of this pilot study was to evaluate whether a 4-week version of our Contemplative Self-Healing program would have different effects in reducing PTSD symptoms between breast cancer survivors with or without chronic stress at baseline. PTSD symptoms were measured using the Impact of Events scale (IES). A linear mixed model analysis was used to evaluate within patients changes in IES score...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28511101/stable-and-self-healing-superhydrophobic-mno2-fabrics-applications-in-self-cleaning-oil-water-separation-and-wear-resistance
#13
Deke Li, Zhiguang Guo
In this work, superhydrophobic fabrics were prepared through an in-situ growth method for fabricating hierarchical flower-like MnO2 nanoparticles on cotton fabric surface and subsequent STA modification, which exhibited multifunction for self-healing, self-cleaning, oil/water separation and wear resistance. After air-plasma treatment, the self-healing MnO2@fabric could restore superhydrophobicity by a short time heat treatment, and the water CA without obvious reduction after 8 cycles. Moreover, the MnO2@fabric could selectively filtrate oil from a mixture of oil and water repeatedly, and demonstrated high efficiency for oil/water separation capability and excellent self-cleaning property...
May 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28509514/lay-public-s-use-of-a-support-group-for-general-dental-problems
#14
K K Walker, R D Jackson
OBJECTIVE: To categorize and tabulate layperson inquiries made to an Internet dental health support site to identify oral conditions and associated behaviors of concern. METHODS: A retrospective tabulation of wall postings was made from an established dental health support website hosted by WebMD over a 2-year period (April 2013-April 2015). A mixed method approach of content and thematic analysis was used. Content analysis identified content of oral health concerns, while thematic analysis using grounded theory identified themes and beliefs concerning associated behaviors...
September 2016: Community Dental Health
https://www.readbyqxmd.com/read/28508056/picosecond-amorphization-of-sio2-stishovite-under-tension
#15
Masaaki Misawa, Emina Ryuo, Kimiko Yoshida, Rajiv K Kalia, Aiichiro Nakano, Norimasa Nishiyama, Fuyuki Shimojo, Priya Vashishta, Fumihiro Wakai
It is extremely difficult to realize two conflicting properties-high hardness and toughness-in one material. Nano-polycrystalline stishovite, recently synthesized from Earth-abundant silica glass, proved to be a super-hard, ultra-tough material, which could provide sustainable supply of high-performance ceramics. Our quantum molecular dynamics simulations show that stishovite amorphizes rapidly on the order of picosecond under tension in front of a crack tip. We find a displacive amorphization mechanism that only involves short-distance collective motions of atoms, thereby facilitating the rapid transformation...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28504705/wounding-induces-dedifferentiation-of-epidermal-gata6-cells-and-acquisition-of-stem-cell-properties
#16
Giacomo Donati, Emanuel Rognoni, Toru Hiratsuka, Kifayathullah Liakath-Ali, Esther Hoste, Gozde Kar, Melis Kayikci, Roslin Russell, Kai Kretzschmar, Klaas W Mulder, Sarah A Teichmann, Fiona M Watt
The epidermis is maintained by multiple stem cell populations whose progeny differentiate along diverse, and spatially distinct, lineages. Here we show that the transcription factor Gata6 controls the identity of the previously uncharacterized sebaceous duct (SD) lineage and identify the Gata6 downstream transcription factor network that specifies a lineage switch between sebocytes and SD cells. During wound healing differentiated Gata6(+) cells migrate from the SD into the interfollicular epidermis and dedifferentiate, acquiring the ability to undergo long-term self-renewal and differentiate into a much wider range of epidermal lineages than in undamaged tissue...
May 15, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28503039/the-possible-role-of-meditation-in-myofascial-pain-syndrome-a-new-hypothesis
#17
Prashanth Panta
BACKGROUND OF HYPOTHESIS: Myofascial pain syndrome (MPS) is the most common musculoskeletal pain disorder of the head and neck area. In the past, several theories were put forth to explain its origin and nature, but none proved complete. Myofascial pain responds to changing psychological states and stress, anxiety, lack of sleep, anger, depression and chronic pain are direct contributional factors. Myofascial pain syndrome may be considered as a psychosomatic disorder. There are numerous accepted palliative approaches, but of all, relaxation techniques stand out and initiate healing at the base level...
April 2017: Indian Journal of Palliative Care
https://www.readbyqxmd.com/read/28499371/-placebo-effect-is-probably-what-we-refer-to-as-patient-healing-power-a-qualitative-pilot-study-examining-how-norwegian-complementary-therapists-reflect-on-their-practice
#18
Trine Stub, Nina Foss, Ingrid Liodden
BACKGROUND: Complementary therapists spend considerable time with their patients, especially in the first consultation. The communication between patients and their therapists is important for raising consciousness and activation of the patient's self-healing power. Thus, the aims in this study were to delineate what complementary therapists regard as essential in patient consultations, their view of the healing process, and how the therapists understand the placebo effect and its position in the healing process...
May 12, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28497536/robotic-guided-waterjet-cutting-technique-for-high-tibial-dome-osteotomy-a-pilot-study
#19
Eduardo M Suero, Ralph Westphal, David Zaremba, Musa Citak, Nael Hawi, Mustafa Citak, Timo Stuebig, Christian Krettek, Emmanouil Liodakis
BACKGROUND: Oscillating saws generate high levels of heat (up to 150°C), which can lead to tissue necrosis, delayed healing and infection. Abrasive waterjet-cutting techniques have been described as a new tool to perform bone cuts, with less heat generation. METHODS: Four lower-limbs of four human alcohol conserved cadavers were tested. Navigation references were attached to the tibia and an intraoperative fluoroscopy-based 3D scan was obtained. A 1.2 mm diameter nozzle was attached to a robotic arm, which was guided to follow a pre-specified path...
May 12, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28493644/the-quality-of-life-of-people-who-have-chronic-wounds-and-who-self-treat
#20
Suzanne Kapp, Charne MiIller, Nick Santamaria
AIM: The aim of this study was to investigate the effect of chronic wounds on the physical, emotional, social, lifestyle and financial domains of quality of life among people who self-treat their wounds. BACKGROUND: Patient centered models of care have received increased attention over recent decades because of the potential to contribute positively to the patient's health and well-being. A contemporary understanding of the effect of chronic wounds on quality of life may assist care providers and healthcare systems to respond to patient needs and improve patient outcomes...
May 11, 2017: Journal of Clinical Nursing
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