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https://www.readbyqxmd.com/read/28217237/-caught-by-the-eye-of-sound-epigastric-swelling-due-to-xiphisternal-tuberculosis
#1
Shabnam Bhandari Grover, Sumit Arora, Amit Kumar, Hemal Grover, Amit Katyan, Deepthi Mohan Nair
BACKGROUND: Common causes of an epigastric mass include hepatomegaly, pancreatic pseudocyst and epigastric hernia, less common causes being carcinoma of the stomach or pancreas, whereas diseases of the sternum presenting as an epigastric swelling is extremely uncommon. We report a case of tubercular infection of the sternum located in the xiphoid process resulting in its presentation as an epigastric swelling. CASE REPORT: A 30-year-old immunocompetent woman with complaints of an epigastric swelling and undocumented pyrexia for four months was referred for sonographic evaluation with a clinical suspicion of an incompletely treated liver abscess...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28185669/electrical-stimulation-and-monitoring-devices-of-the-cns-an-imaging-review
#2
REVIEW
Sohil H Patel, Casey H Halpern, Timothy M Shepherd, Vincent M Timpone
Functional neurosurgery is a rapidly growing field with exciting future potential applications. This article describes currently used implanted electronic devices for neurologic stimulation and monitoring. The devices to be reviewed include invasive EEG electrodes, deep brain stimulator, motor cortex stimulator, responsive neurostimulation, osteo-integrated hearing aid, middle ear implant, cochlear implant, auditory brainstem implant, vagal nerve stimulator and spinal cord stimulator. Emphasis is placed on the normal components, function, positioning, potential complications and MRI safety of these devices...
February 6, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28183618/evaluation-of-the-osteo-inductive-potential-of-hollow-three-dimensional-magnesium-strontium-substitutes-for-the-bone-grafting-application
#3
Mei Li, Xuan Yang, Weidan Wang, Yu Zhang, Peng Wan, Ke Yang, Yong Han
Regeneration of bone defects is a clinical challenge that usually necessitates bone grafting materials. Limited bone supply and donor site morbidity limited the application of autografting, and improved biomaterials are needed to match the performance of autografts. Osteoinductive materials would be the perfect candidates for achieving this task. Strontium (Sr) is known to encourage bone formation and also prevent osteoporosis. Such twin requirements have motivated researchers to develop Sr-substituted biomaterials for orthopedic applications...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28167279/nlrp3-inflammasome-activation-in-mesenchymal-stem-cells-inhibits-osteogenic-differentiation-and-enhances-adipogenic-differentiation
#4
Linghao Wang, Ke Chen, Xinxing Wan, Fang Wang, Zi Guo, Zhaohui Mo
Osteoporosis is one of the most common skeletal disease featured by osteopenia and adipose accumulation in bone tissue. NLRP3 inflammasome activation is an essential player in aging-related chronic diseases like osteoporosis, particularly due to the causal caspase-1 activation and its correlation to adipose accumulation in bone tissue. Moreover, the expression of anti-aging/senescence SIRT1 was reported to decline along with aging. As the major cellular contributor of bone formation, mesenchymal stem cells (MSCs) are multipotent stem cells processing mutually exclusive differentiatability toward osteocytes or adipocytes...
February 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28163851/a-systematic-review-of-the-relationship-between-dystemprament-sue-mizaj-and-treatments-and-management-of-diseases-ilaj-and-eslah-e-mizaj
#5
REVIEW
Sepide Miraj, Samira Alesaeidi, Sara Kiani
BACKGROUND: Temperament refers to four different humors differentiating in individuals and, as a result, proposes specific therapy for diseases as well as special types of management (avoidance). OBJECTIVE: The aim of this study was to overview the relationship between dystemprament and treatment and management of diseases. METHODS: A computerized search of published articles was performed using PubMed, Scopus, Web of Science, and Medline databases as well as local sources from 1965 to 2016...
December 2016: Electronic Physician
https://www.readbyqxmd.com/read/28155052/a-nanofibrous-electrospun-patch-to-maintain-human-mesenchymal-cell-stemness
#6
L Pandolfi, N Toledano Furman, Xin Wang, C Lupo, J O Martinez, M Mohamed, F Taraballi, E Tasciotti
Mesenchymal stem cells (MSCs) have been extensively investigated in regenerative medicine because of their crucial role in tissue healing. For these properties, they are widely tested in clinical trials, usually injected in cell suspension or in combination with tridimensional scaffolds. However, scaffolds can largely affect the fates of MSCs, inducing a progressive loss of functionality overtime. The ideal scaffold must delay MSCs differentiation until paracrine signals from the host induce their change. Herein, we proposed a nanostructured electrospun gelatin patch as an appropriate environment where human MSCs (hMSCs) can adhere, proliferate, and maintain their stemness...
March 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28145066/analysis-of-gene-expression-profiles-between-apical-papilla-tissues-stem-cells-from-apical-papilla-and-cell-sheet-to-identify-the-key-modulators-in-mscs-niche
#7
Shu Diao, Xiao Lin, Liping Wang, Rui Dong, Juan Du, Dongmei Yang, Zhipeng Fan
OBJECTIVES: The microenvironmental niche plays the key role for maintaining the cell functions. The stem cells from apical papilla (SCAPs) are important for tooth development and regeneration. However, there is limited knowledge about the key factors in niche for maintaining the function of SCAPs. In this study, we analyse the gene expression profiles between apical papilla tissues, SCAPs and SCAPs cell sheet to identify the key genes in SCAPs niche. MATERIALS AND METHODS: Microarray assays and bioinformatic analysis were performed to screen the differential genes between apical papilla tissues and SCAPs, and SCAPs and SCAPs cell sheet...
February 1, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28132822/the-release-kinetics-antimicrobial-activity-and-cytocompatibility-of-differently-prepared-collagen-hydroxyapatite-vancomycin-layers-microstructure-vs-nanostructure
#8
Tomáš Suchý, Monika Šupová, Eva Klapková, Václava Adamková, Jan Závora, Margit Žaloudková, Šárka Rýglová, Rastislav Ballay, František Denk, Marek Pokorný, Pavla Sauerová, Marie Hubálek Kalbáčová, Lukáš Horný, Jan Veselý, Tereza Voňavková, Richard Průša
The aim of this study was to develop an osteo-inductive resorbable layer allowing the controlled elution of antibiotics to be used as a bone/implant bioactive interface particularly in the case of prosthetic joint infections, or as a preventative procedure with respect to primary joint replacement at a potentially infected site. An evaluation was performed of the vancomycin release kinetics, antimicrobial efficiency and cytocompatibility of collagen/hydroxyapatite layers containing vancomycin prepared employing different hydroxyapatite concentrations...
January 27, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28121366/the-use-of-vascularised-bone-capping-to-prevent-and-treat-amputation-stump-spiking-in-the-paediatric-population
#9
Adrian D Murphy, Sara E Atkins, Damon J Thomas, David McCombe, Chris J Coombs
BACKGROUND: Overgrowth of the stump skeleton is a major complication seen in children after an amputation. In advanced cases, perforation of the bone spike through the skin can occur. Many surgical treatments have been employed to treat and prevent this, with best results seen when non-vascularised osteo-chondral bone grafts are placed to try to mimic a trans-articular amputation. We reviewed our outcomes using vascularized bone flaps to prevent and treat spiking. PATIENTS AND METHODS: Between 2000 and 2016 we carried out six vascularised osteo-cartilaginous bone capping procedures...
January 25, 2017: Microsurgery
https://www.readbyqxmd.com/read/28117904/the-effect-of-accelerated-mineral-trioxide-aggregate-on-odontoblastic-differentiation-in-dental-pulp-stem-cell-niches
#10
P Kulan, O Karabiyik, G T Kose, B Kargul
AIM: To investigate the effect of accelerated-set mineral trioxide aggregate (MTA) on the proliferation and odontoblastic differentiation of human dental pulp cell niches (DPSC). METHODOLOGY: ProRoot White MTA (WMTA) (Dentsply Tulsa Dental, Johnson City, TN, USA) was mixed with various additives, which included distilled water, 2.5% disodium hydrogen phosphate (Na2 HPO4 )(Merck, Darmstadt, Germany) and 5% calcium chloride (CaCl2 )(Merck). DPSC niches extracted from third molars were cultured directly on MTA in the culture medium...
January 24, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28116277/broken-pieces-of-circlage-wire-lying-in-soft-tissue-envelope-around-knee-joint-a-case-report-and-review-of-literature
#11
Anoop Kalia, Kavin Khatri, Jagdeep Singh, Kapil Bansal, Mohammed Sagy
INTRODUCTION: The migration of circlage wires used in tension band wiring construct of patella fractures in the posterior soft tissue envelope surrounding the knee joint has been rarely reported. CASE PRESENTATION: A 60-year-old woman presented to us with pain over medial aspect of right knee joint. She underwent open reduction and internal fixation for a patellar fracture which she sustained 4 years back and subsequently underwent kirschner wire(k wire) removal for the same around 2 years back...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28116272/management-of-large-bone-defects-in-diaphyseal-fractures-by-induced-membrane-formation-by-masquelet-s-technique
#12
R Sivakumar, M Gulam Mohideen, M Chidambaram, T Vinoth, Prahalad Kumar Singhi, V Somashekar
INTRODUCTION: Management of the large gap in long bone fractures is a challenging problem after compound injuries. A novel technique called as Masquelet's technique of "induced membrane formation", is used to bridge a gap of more than 5 cm using bone cement as a spacer in first stage and autologous cancellous bone graft to fill the gap in second stage. CASE PRESENTATION: We present two different and difficult cases with bone defects after open injuries associated with long bone fractures in this paper...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28114830/substance-use-and-misuse-in-a-mountain-ultramarathon-new-insight-into-ultrarunners-population
#13
Sandra Didier, Jean-Charles Vauthier, Nicolas Gambier, Pierre Renaud, Bruno Chenuel, Mathias Poussel
Endurance and ultra-endurance events have become increasingly popular. The aim of our study was to explore the use of medication among endurance runners participating in the 2014 Infernal Trail des Vosges. Among the 389 runners engaged, 297 (76.3%) completed a specific questionnaire dealing with substance use/misuse. Our results show a 27% (before the race) and 18% (during the race) prevalence of substance use. The two major classes of substances used were non-steroidal anti-inflammatory drugs (NSAIDs; 9.8%) and painkillers (6...
January 23, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28103529/improving-osteogenesis-of-three-dimensional-porous-scaffold-based-on-mineralized-recombinant-human-like-collagen-via-mussel-inspired-polydopamine-and-effective-immobilization-of-bmp-2-derived-peptide
#14
Jing Zhou, Xiaodong Guo, Qixin Zheng, Yongchao Wu, Fuzai Cui, Bin Wu
An ideal bone substitute should be biocompatible, biodegradable, osteoinductive and osteoconductive. In our previous work, we fabricated a three-dimensional porous scaffold based on mineralized recombinant human-like collagen, nano-hydroxyapatite/recombinant human-like collagen/poly(lactic acid) (nHA/RHLC/PLA). Like other HA/collagen scaffolds, the nHA/RHLC/PLA scaffold lacked osteoinductive bioactivity. The purpose of the present study was to develop a polydopamine (pDA)-assisted BMP-2-derived peptide (designated as P24) surface modification strategy for improving the osteogenesis of the nHA/RHLC/PLA scaffold...
January 4, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28102172/dr-j%C3%A3-zef-aleksiewicz-activity-in-support-of-the-development-of-orthopedics-and-rehabilitation-in-iwonicz-zdr%C3%A3-j-1921-1957
#15
Sławomir Jandziś, Stanisław Zaborniak
Based on source materials in the possession of Józef Aleksiewicz family (typescripts, manuscripts, photographs, other documents) and articles published in professional medical journals and newspapers, the authors present the contribution of Dr. J. Aleksiewicz to the development of orthopedics and rehabilitation in Iwonicz-Zdrój. In May 1921, he was appointed Surgeon General of the Spa Commission in Iwonicz-Zdrój. After holding several scholarly trips abroad in 1925 to sanatoriums treating cases of osteo-articular tuberculosis, he commenced the construction of "Sanato", a modern sanatorium...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28068081/peptide-decorated-nanofibrous-niche-augments-in-vitro-directed-osteogenic-conversion-of-human-pluripotent-stem-cells
#16
Yi Deng, Yuanyi Yang, Shicheng Wei
Realization of clinical potential of human pluripotent stem cells (hPSCs) in bone regenerative medicine requires development of simple and safe biomaterials for expansion of hPSCs followed by directing their lineage commitment to osteoblasts. In the present study, a chemically defined peptide-decorated polycaprolactone (PCL) nanofibrous microenvironment was prepared through electrospinning technology and subsequent conjugation with vitronectin peptide to promote the culture and osteogenic potential of hPSCs in vitro...
January 24, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28064220/gene-expression-analysis-of-cultured-rat-endothelial-cells-after-nd-yag-laser-irradiation-by-affymetrix-genechip-array
#17
Yoshiko Masuda, Satoshi Yokose, Hiroshi Sakagami
Endothelial cells and dental pulp cells enhance osteo-/odontogenic and angiogenic differentiation. In our previous study, rat pulp cells migrated to Nd:YAG laser-irradiated endothelial cells in an insert cell culture system. The purpose of this study was to examine the possible changes in the gene expression of cultured rat aortic endothelial cells after Nd:YAG laser irradiation using affymetrix GeneChip Array. Total RNA was extracted from the cells at 5 h after laser irradiation. Gene expressions were evaluated by DNA array chip...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28060333/mesenchymal-stromal-cell-culture-and-delivery-in-autologous-conditions-a-smart-approach-for-orthopedic-applications
#18
Luisa Trombi, Serena Danti, Sara Savelli, Stefania Moscato, Delfo D'Alessandro, Claudio Ricci, Stefano Giannotti, Mario Petrini
Human Mesenchymal Stromal Cells (hMSCs) are cultured in vitro with different media. Limits on their use in clinical settings, however, mainly depend on potential biohazard and inflammation risks exerted by xenogeneic nutrients for their culture. Human derivatives or recombinant materials are the first choice candidates to reduce these reactions. Therefore, culture supplements and materials of autologous origin represent the best nutrients and the safest products. Here, we describe a new protocol for the isolation and culture of bone marrow hMSCs in autologous conditions - namely, patient-derived serum as a supplement for the culture medium and fibrin as a scaffold for hMSC administration...
December 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28054496/tailoring-exercise-interventions-to-comorbidities-and-treatment-induced-adverse-effects-in-patients-with-early-stage-breast-cancer-undergoing-chemotherapy-a-framework-to-support-clinical-decisions
#19
Marike van der Leeden, Rosalie J Huijsmans, Edwin Geleijn, Mariëtte de Rooij, Inge R Konings, Laurien M Buffart, Joost Dekker, Martijn M Stuiver
PURPOSE: Delivery of exercise interventions to patients with early-stage breast cancer undergoing chemotherapy requires complex clinical decisions. The purpose of this study was to develop a framework to support clinical decisions for tailoring exercise interventions to common comorbidities and cancer treatment-induced adverse effects. METHOD: Tailored exercise prescriptions were developed in four steps, following the i3-S strategy. All steps were based on current best available evidence, complemented with expert opinions...
January 5, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28027822/semaphorin-4d-enhances-angiogenic-potential-and-suppresses-osteo-odontogenic-differentiation-of-human-dental-pulp-stem-cells
#20
Ting Zou, Waruna Lakmal Dissanayaka, Shan Jiang, Shuai Wang, Boon Chin Heng, Xiaojing Huang, Chengfei Zhang
INTRODUCTION: To investigate the roles of semaphorin 4D (Sema4D)/plexin-B1 signaling on the angiogenic potential and osteo-/odontogenic differentiation of human dental pulp stem cells (DPSCs) and to uncover the corresponding molecular mechanisms. METHODS: DPSCs were treated with Sema4D (10 μg/mL) for different time durations. Osteo-/odontogenic differentiation was assessed by quantifying alkaline phosphatase activity, mineralized nodule formation, and osteo-/odontogenic gene (ALP, Col1A1, BSP, RUNX2, and DSPP) and protein (Col1A1 and DSPP) expression...
December 24, 2016: Journal of Endodontics
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