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Massimo Del Fabbro, Stefano Corbella, Patrick Sequeira-Byron, Igor Tsesis, Eyal Rosen, Alessandra Lolato, Silvio Taschieri
BACKGROUND: When primary root canal therapy fails, periapical lesions can be retreated with or without surgery. Root canal retreatment is a non-surgical procedure that involves removal of root canal filling materials from the tooth, followed by cleaning, shaping and obturating of the canals. Root-end resection is a surgical procedure that involves exposure of the periapical lesion through an osteotomy, surgical removal of the lesion, removal of part of the root-end tip, disinfection and, commonly, retrograde sealing or filling of the apical portion of the remaining root canal...
October 19, 2016: Cochrane Database of Systematic Reviews
Y-C Huang, J Xiao, W Y Leung, W W Lu, Y Hu, K D Luk
Previous human study suggested that fresh-frozen intervertebral disc allograft transplantation can relieve neurological symptoms and restore segmental kinematics. Before wide clinical application, research into the pathophysiology of the postoperative disc allograft is needed. One important question that remains to be answered in disc allografting is the healing process of the host-graft interface and the subsequent change of the endplates. With the goat model for lumbar disc allografting, histology, micro-computed tomography analysis, scanning electron microscopy and energy-dispersive X-ray spectroscopy mapping were applied to evaluate the healing of the host-graft interfaces, the remodelling of subchondral bone, and the changes of the bony and cartilaginous endplates after transplantation...
October 19, 2016: European Cells & Materials
Suzy L Wong
BACKGROUND: Reduced muscular strength is associated with an increased risk of all-cause, cardiovascular and non-cardiovascular mortality, heart attack and stroke. At older ages, reduced strength is associated with impaired mobility, risk of falls, and disability. Various criteria are used to determine reduced strength. DATA AND METHODS: Data on grip strength among 3,181 respondents aged 60 to 79 from the 2007 to 2013 Canadian Health Measures Survey were used to calculate the prevalence of reduced strength based on sex-specific percentile and t-score cut-points and cut-points of the Foundation for the National Institutes of Health...
October 19, 2016: Health Reports
Dilraj S Grewal, Sharon Fekrat
The authors present an incidentally noted pigmented anterior vitreous cyst in an asymptomatic male adult. Observation was elected. Stability during the course of 2 years and mobility of the vitreous cyst using dynamic imaging are demonstrated. [Ophthalmic Surg Lasers Imaging Retina. 2016;47:975-977.].
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Dilraj S Grewal, Tamer H Mahmoud
A 54-year-old male developed symptomatic scleral buckle exposure 16 years after placement and presented with large conjunctival defects with fibrosed edges. Following surgical removal of the buckle elements, primary conjunctival closure could not be achieved due to significant wound tension despite undermining the conjunctival edges to mobilize the conjunctiva. A dehydrated amniotic membrane graft (Ambio5; IOP Ophthalmics, Costa Mesa, CA) was placed on the scleral bed and secured in place with fibrin sealant (TISSEEL; Baxter International, Westlake Village, CA)...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Luis Schiper, Bluma Linkowski Faintuch, Roberto José da Silva Badaró, Erica Aparecida de Oliveira, Victor E Arana Chavez, Elisangela Chinen, Joel Faintuch
OBJECTIVES: Conventional imaging methods are excellent for the morphological characterization of the consequences of osteonecrosis; however, only specialized techniques have been considered useful for obtaining functional information. To explore the affinity of radiotracers for severely devascularized bone, a new mouse model of isolated femur implanted in a subcutaneous abdominal pocket was devised. To maintain animal mobility and longevity, the femur was harvested from syngeneic donors...
October 1, 2016: Clinics
Giang Huong Nguyen, James Y Wang, Kenneth B Hymes, Cynthia M Magro
Adult T-cell leukemia/lymphoma (ATLL) is a rare and often aggressive lymphoid malignancy known to be associated with human T-cell lymphotropic virus type 1. There are 2 broad categories: acute and chronic. In the acute category, there is a leukemic and a lymphomatous variant, whereas in the designated "chronic" form, there is mild peripheral blood lymphocytosis. The intermediate "smoldering" category is without peripheral blood lymphocytosis with only discernible skin involvement. We present a 68-year-old human T-cell lymphotropic virus type 1 seropositive female with a mild peripheral blood atypical lymphocytosis who had indurated nodules on her hands of 2 years duration and a new scaly ichthyosiform eruption on her lower extremities...
October 12, 2016: American Journal of Dermatopathology
Grzegorz Jedrzejewski, Magdalena M Wozniak, Agata Pawelec, Albert Matera, Magdalena Kunach, Tomasz Madej, Andrzej P Wieczorek, Katarzyna Nowakowska
The aim of the ultrasound (US) screening program was to detect neoplastic lesions in children, together with other pathologies of the developmental age in the area of the neck, abdomen, female pelvis, and scrotum in boys.US screening scans, including cervical, abdominal, pelvical, and scrotal US, were performed in the population of asymptomatic children aged from 9 months to 6 years. The children were scanned in Mobile Pediatric US Unit, consisting of 2 independent consulting rooms.The scans of 14,324 children were analyzed, 7247 boys and 7077 girls...
October 2016: Medicine (Baltimore)
Homero Rivas, Ignacio Robles, Francisco Riquelme, Marcelo Vivanco, Julio Jiménez, Boris Marinkovic, Mario Uribe
OBJECTIVE: To evaluate a new magnetic surgical system during reduced-port laparoscopic cholecystectomy in a prospective, multicenter clinical trial. BACKGROUND: Laparoscopic instrumentation coupled by magnetic fields may enhance surgeon performance by allowing for shaft-less retraction and mobilization. The movements can be performed under direct visualization, generating different angles of traction and reducing the number of trocars to perform the procedure. This may reduce well-known associated complications of trocars, including incisional pain, scarring, infection, bowel, and vascular injuries, among others...
October 17, 2016: Annals of Surgery
Beth Wieczorek, Judith Ascenzi, Yun Kim, Hallie Lenker, Caroline Potter, Nehal J Shata, Lauren Mitchell, Catherine Haut, Ivor Berkowitz, Frank Pidcock, Jeannine Hoch, Connie Malamed, Tamara Kravitz, Sapna R Kudchadkar
OBJECTIVE: To determine the safety and feasibility of an early mobilization program in a PICU. DESIGN: Observational, pre-post design. SETTING: PICU in a tertiary academic hospital in the United States. PATIENTS: Critically ill pediatric patients admitted to the PICU. INTERVENTION: This quality improvement project involved a usual-care baseline phase, followed by a quality improvement phase that implemented a multicomponent, interdisciplinary, and tiered activity plan to promote early mobilization of critically ill children...
October 10, 2016: Pediatric Critical Care Medicine
Yuhong Chen, Chenyang Ji, Biying Wu, Weiqiang Liang, Jinming Zhang
OBJECTIVE: To investigate the application of MEDPOR surgical implant in modified penile elongation. METHODS: The suspensory ligaments were divided, and cavernous bodies of crus were partially mobilized, so as to release part of the cavernous bodies from inferior ramus of pubis. Then, the penis was elongated sufficiently. MEDPOR surgical implants (MEDPOR; high-density porous polyethylene, Howmedica Osteonics Corp. Newnan, Ga) were inserted between the cavernous bodies and pubic symphysis...
October 17, 2016: Annals of Plastic Surgery
Claudia Kathe, Thomas Haynes Hutson, Stephen Brendan McMahon, Lawrence David Falcon Moon
Brain and spinal injury reduce mobility and often impair sensorimotor processing in the spinal cord leading to spasticity. Here, we establish that complete transection of corticospinal pathways in the pyramids impairs locomotion and leads to increased spasms and excessive mono- and polysynaptic low threshold spinal reflexes in rats. Treatment of affected forelimb muscles with an adeno-associated viral vector (AAV) encoding human Neurotrophin-3 at a clinically-feasible time-point after injury reduced spasticity...
October 19, 2016: ELife
Audrey M B Wong-Kee-You, Scott A Adler
Advances in our understanding of long-term memory in early infancy have been made possible by studies that have used the Rovee-Collier's mobile conjugate reinforcement paradigm and its variants. One function that has been attributed to long-term memory is the formation of expectations (Rovee-Collier & Hayne, 1987); consequently, a long-term memory representation should be established during expectation formation. To examine this prediction and potentially open the door on a new paradigm for exploring infants' long-term memory, using the Visual Expectation Paradigm (Haith, Hazan, & Goodman, 1988), 3-month-old infants were trained to form an expectation for predictable color and spatial information of picture events and emit anticipatory eye movements to those events...
November 2016: Developmental Psychobiology
Jeffrey Fagen, Phyllis Ohr, Kimberly Boller
In this article, we reflect upon Carolyn Rovee-Collier's pioneering research on learning and memory in infants, especially that using the mobile conjugate reinforcement task, for our understanding of (a) cognitive development in infants born prematurely and those with Down's syndrome and (b) her prediction that infants' performance in the mobile conjugate reinforcement and similar operant tasks would predict later intellectual functioning. We then examine the implications of her research on time windows (the integration of new information into a memory) and memory reactivation (the retrieval of a forgotten memory as a result of the re-exposure to a component of the original learning experience) for early intervention programs and clinicians treating victims of early trauma...
November 2016: Developmental Psychobiology
Barbara A Morrongiello, Amanda Cox
In most industrialized countries, injuries are the leading cause of death for children 1 through 18 years of age. For infants, many injuries occur in the home when they are acquiring new motor milestones. Thus, as infants' motor competencies change with development, creating increasing opportunities for them to interact with hazards, parent safety strategies need to adapt in synchrony in order to sustain a safe ecological niche and prevent injuries. The present study examined parent safety practices when infants were pre-mobile (i...
November 2016: Developmental Psychobiology
Carola Becker, Gerhard Scholtz
Female reproductive systems are important characters for understanding the evolution of Brachyura and resolving its phylogenetic relationships. We herein investigate a podotreme brachyuran reproductive system comprehensively for the first time studying spermathecae and gonopores of Homoloidea with histological methods, micro-computer tomography and scanning electron microscopy. Our results show that spermathecal apertures are species-specific and their shape corresponds closely to that of male copulatory organs...
October 17, 2016: Journal of Morphology
Michael Bobian, Aron Kandinov, Nour El-Kashlan, Peter F Svider, Adam J Folbe, Ross Mayerhoff, Jean Anderson Eloy, S Naweed Raza
OBJECTIVES/HYPOTHESIS: Despite the increasing role of mobile applications (apps) in patient education, there has been little inquiry evaluating the quality of these resources. Because poor health literacy has been associated with inferior health outcomes, evaluating the quality of patient education materials takes on great importance. Our objective was to employ validated readability tools for the evaluation of gastroesophageal reflux (GERD) mobile apps. METHODS: GERD-specific apps found in the Apple App Store (Apple Inc...
October 18, 2016: Laryngoscope
Richard J E James, Claire O'Malley, Richard J Tunney
This manuscript reviews the extant literature on key issues related to mobile gambling and considers whether the potential risks of harm emerging from this platform are driven by pre-existing comorbidities or by psychological processes unique to mobile gambling. We propose an account based on associative learning that suggests this form of gambling is likely to show distinctive features compared with other gambling technologies. Smartphones are a rapidly growing platform on which individuals can gamble using specifically designed applications, adapted websites or text messaging...
October 18, 2016: British Journal of Psychology
Mateusz Adamiak, Ahmed Abdelbaset-Ismail, Joseph B Moore, J Zhao, Ahmed Abdel-Latif, Marcin Wysoczynski, Mariusz Z Ratajczak
Nitric oxide (NO) is a gaseous free radical molecule involved in several biological processes related to inflammation, tissue damage, and infections. Based on reports that NO inhibits migration of granulocytes and monocytes, we became interested in the role of inducible NO synthetase (iNOS) in pharmacological mobilization of hematopoietic stem/progenitor cells (HSPCs) from bone marrow (BM) into peripheral blood (PB). To address the role of NO in HSPC trafficking, we upregulated or downregulated iNOS expression in hematopoietic cell lines...
October 17, 2016: Stem Cell Reviews
Matthew T Campbell, Gary L Glish
Differential ion mobility spectrometry (DIMS) is capable of separating components of complex mixtures prior to mass spectrometric analysis, thereby increasing signal-to-noise and signal-to-background ratios on millisecond timescales. However, adding a DIMS device to the front end of a mass spectrometer can reduce the signal intensity of subsequent mass spectrometric analysis. This is a result, in part, of ions lost due to inefficient transfer of ions from the DIMS device through the aperture leading into the mass spectrometer...
October 17, 2016: Journal of the American Society for Mass Spectrometry
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