1,210,716 results match your criteria Bone Hemangioma Imaging


[Acetabular Revision: Reconstruction of Cavitary and Segmental Defects with Special Consideration of Modular Highly Porous Acetabular Revision Systems].

Z Orthop Unfall 2018 Dec 14;156(6):692-703. Epub 2018 Dec 14.

Klinik für Orthopädie, Universitätsklinikum Ulm.

Due to the increasing number of primary hip arthroplasty procedures, revision surgery will be an increasing challenge. The surgeon is frequently confronted with important acetabular defects. Careful preoperative planning is essential to achieve functional and long-term success. Read More

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December 2018

Prognosis of renal cell carcinoma with bone metastases: Experience from a large cancer centre.

Eur J Cancer 2018 Dec 11;107:79-85. Epub 2018 Dec 11.

Department of Cancer Medicine, Gustave Roussy Cancer Campus, Paris-Sud University, Villejuif, France.

Background: Bone metastases (BMs) are associated with significant morbidity and shorter survival in renal cell carcinoma (RCC). Our purpose was to identify prognostic factors for overall survival (OS) in RCC patients with BMs.

Methods: Data from patients with BMs from RCC treated at Gustave Roussy between April 1992 and March 2016 were retrospectively collected. Read More

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December 2018

Near-infrared light control of bone regeneration with biodegradable photothermal osteoimplant.

Biomaterials 2018 Dec 10;193:1-11. Epub 2018 Dec 10.

Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China. Electronic address:

Mild heat stimulation can promote the restoration of bone defects but unfortunately, the delivery of exo-hyperthermy into human body is not efficient enough. In this study, mild heat-induced osteogenesis with high efficacy is demonstrated on an osteoimplant composed of black phosphorus nanosheets and poly(lactic-co-glycolic acid) (BPs@PLGA) with the participation of near-infrared (NIR) light irradiation. BPs@PLGA with only 0. Read More

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December 2018
1 Read

Antibiotic elution and mechanical property of TiO nanotubes functionalized PMMA-based bone cements.

J Mech Behav Biomed Mater 2018 Nov 23;91:91-98. Epub 2018 Nov 23.

Institute of Chemical and Engineering Sciences, A⁎STAR (Agency for Science, Technology and Research), 1 Pesek Road, Singapore 627833, Jurong Island, Singapore; Department of Chemical and Biomolecular Engineering, The National University of Singapore, 4 Engineering Drive 4, Singapore 117576, Singapore. Electronic address:

To overcome the disadvantage of current antibiotic bone cements with low drug elution efficiency, the hollow nanostructured titanium-dioxide (TiO) nanotubes (TNTs) were formulated with antibiotic loaded bone cement to create nano diffusion networks, enabling enhanced release of antibiotic. By incorporation of TNTs into Poly(methyl methacrylate) (PMMA) based bone cement, more than 50% of loaded antibiotic (such as gentamicin or vancomycin) could be released in two months. As comparison, only about 5% of total drug release was achieved in the absence of TNTs. Read More

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November 2018

Cell-type specificity and functional redundancy of RIG-I-like receptors in innate immune sensing of Coxsackievirus B3 and encephalomyocarditis virus.

Virology 2018 Dec 11;528:7-18. Epub 2018 Dec 11.

Department of Microbiology & Immunology, Vagelos College of Physicians & Surgeons of Columbia University, 701 W. 168th St., New York, NY 10032, USA. Electronic address:

The contributions of RIG-I and MDA5 receptors to sensing viruses of the Picornaviridae family were investigated. The picornaviruses encephalomyocarditis virus (EMCV) and Coxsackievirus B3 (CVB3) are detected by both MDA5 and RIG-I in bone marrow derived macrophages. In macrophages from wild type mice, type I IFN is produced early after infection; IFNβ synthesis is reduced in the absence of each sensor, while IFNα production is reduced in the absence of MDA5. Read More

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December 2018

Inflammation and oxidative stress are key mediators in AKB48-induced neurotoxicity in vitro.

Toxicol In Vitro 2018 Dec 11. Epub 2018 Dec 11.

Istanbul University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Beyazıt, 34116 Istanbul, Turkey.

Synthetic cannabinoids were introduced into market in early 2000s; since these "legal highs" are dramatically popular among youth, it becomes a deadly problem. Synthetic cannabinoids have high affinity to cannabinoid receptors; leading to various clinical symptoms. AKB48 (Apinaca) has been classified as a third-generation synthetic cannabinoid for the first time in 2014. Read More

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December 2018
1 Read

Osteocytes reflect a pro-inflammatory state following spinal cord injury in a rodent model.

Bone 2018 Dec 11. Epub 2018 Dec 11.

Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center, Bryan, TX, United States of America.

Profound bone loss occurs following spinal cord injury (SCI) resulting in a high incidence of fractures. While likely caused in part by loss of weight-bearing, there is greater bone loss following SCI when compared to that observed in other disuse animal models. Patients with SCI have a protracted inflammatory response, with elevated circulating levels of pro-inflammatory markers. Read More

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December 2018

A technique to rapidly generate synthetic CT for MRI-guided online adaptive re-planning: an exploratory study.

Int J Radiat Oncol Biol Phys 2018 Dec 11. Epub 2018 Dec 11.

Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI.

Purpose/objective(s): To develop an automatic and accurate atlas based technique for synthetic CT (sCT) generation to be used for online adaptive replanning during MRI guided radiation therapy (RT).

Materials/methods: The proposed method utilizes deformable image registration (DIR) of daily MRI and reference CT with additional corrections to maintain bone rigidity and also transfer of random air regions by thresholding. The DIR is performed with constraints on the bony structures using a special algorithm of ADMIRE (Elekta). Read More

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December 2018
2 Reads

Irisin Mediates Effects on Bone and Fat via αV Integrin Receptors.

Cell 2018 Dec;175(7):1756-1768.e17

Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Cell Biology, Harvard University Medical School, Boston, MA 02115, USA. Electronic address:

Irisin is secreted by muscle, increases with exercise, and mediates certain favorable effects of physical activity. In particular, irisin has been shown to have beneficial effects in adipose tissues, brain, and bone. However, the skeletal response to exercise is less clear, and the receptor for irisin has not been identified. Read More

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December 2018
1 Read

Age-related distribution and dynamics of T-cells in blood and lymphoid tissues of goats.

Dev Comp Immunol 2018 Dec 11. Epub 2018 Dec 11.

Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands. Electronic address:

Neonatal mammals have increased disease susceptibility and sub-optimal vaccine responses. This raises problems in both humans and farm animals. The high prevalence of paratuberculosis in goats and the lack of an effective vaccine against it have a strong impact on the dairy sector, and calls for vaccines optimized for the neonatal immune system. Read More

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December 2018
1 Read

Roles for HB-EGF in Mesenchymal Stromal Cell Proliferation and Differentiation During Skeletal Growth.

J Bone Miner Res 2018 Dec 14. Epub 2018 Dec 14.

Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China.

HB-EGF, a member of the EGF superfamily, plays important roles in development and tissue regeneration. However, its functions in skeletal stem cells and skeleton development and growth remain poorly understood. Here, we used the Cre/LoxP system to ablate or express HB-EGF in Dermo1+ mesenchymal stromal cells and their progenies, including chondrocytes and osteoblast lineage cells, and bone marrow stromal cells (BMSCs). Read More

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December 2018

Bone Mineral Density Adult Age Estimation in Forensic Anthropology: A Test of the DXAGE Application.

J Forensic Sci 2018 Dec 14. Epub 2018 Dec 14.

Department of Biological Sciences, North Carolina State University, 100 Eugene Brooks Avenue, Raleigh, NC, 27695.

Estimating age-at-death of individuals represented only by skeletonized human remains is a fundamental aspect of forensic anthropological casework. Recently, several researchers have proposed that bone mineral density (BMD) is a useful predictor of age-at-death in forensic contexts. Navega et al. Read More

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December 2018

Reply to: Towards a Consensus on Vitamin D Supplementation and Bone Health.

Authors:
John F Aloia

J Bone Miner Res 2018 Dec 14. Epub 2018 Dec 14.

Bone Mineral Research Center, New York University (NYU) Winthrop Hospital, Mineola, NY, USA.

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December 2018

Platelet-Rich Fibrin as a Grafting Material in Periapical Surgery: A Case Series.

Int J Periodontics Restorative Dent 2018 Dec 14. Epub 2018 Dec 14.

Positive effects of platelet-rich fibrin (PRF) on soft tissue healing are well documented, but its role in hard-tissue healing remains contested. The present case series documents the use of PRF as the sole grafting material in periapical bone defects. PRF was prepared and condensed into the bone defects after debridement. Read More

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December 2018

Serum inhibin B concentration as a predictor of age at first menstruation in girls with idiopathic central precocious puberty.

PLoS One 2018 14;13(12):e0205810. Epub 2018 Dec 14.

Fondation Ophtalmologique Adolphe de Rothschild and Université Paris Descartes, Paris, France.

Objective: To compare the serum inhibin B, anti-Müllerian hormone (AMH) and leptin concentrations in girls with idiopathic central precocious puberty (CPP) to their concomitant characteristics and evaluate the capacity of each of these hormones to predict the age at first menstruation in those who were untreated and who completed their puberty.

Methods: This single-center study included 94 girls selected from a cohort of 493 girls seen between 1981 and 2012 and diagnosed with idiopathic CPP for whom a remaining serum sample collected at the initial evaluation was available. Of these 25 were untreated and completed their puberty. Read More

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December 2018

Bone maturation of MRI residual developmental dysplasia of the hip with discrepancy between osseous and cartilaginous acetabular index.

J Pediatr Orthop B 2018 Dec 13. Epub 2018 Dec 13.

Departments of Paediatric Orthopaedic Surgery.

Quality of spontaneous amelioration of residual developmental dysplasia of the hip (DDH) is nowadays not possible to predict. Normal age-related values of the osseous acetabular index (OAI), cartilaginous acetabular index and labral acetabular index have been established on MRI. In this study, MRI of dysplastic hips has been evaluated, and further osseous acetabular maturation was followed-up over time on pelvic radiography to find a correlation between MRI findings and radiological evolution. Read More

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December 2018
3 Reads

Orbital Floor and Rim Reconstruction With a Titanium Orbital Implant and Acellular Dermis.

Ophthalmic Plast Reconstr Surg 2018 Dec 7. Epub 2018 Dec 7.

Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, U.S.A.

Reconstruction of the orbital rim and floor following tumor excision is traditionally performed with bone grafts, vascularized grafts, or free flaps. The authors describe a case of an osteosarcoma of the maxillary sinus and a second case of an ossifying fibroma of the orbital floor, both of which required reconstruction of the orbital floor and rim. In both of these cases, reconstruction of the orbital floor and rim was performed with a titanium implant whose anterior portion was bent inferiorly to recreate the orbital rim. Read More

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December 2018

Pressure-induced mesenchymal stem cell osteogenesis is dependent on intermediate filament remodeling.

FASEB J 2018 Dec 14:fj201801474RR. Epub 2018 Dec 14.

Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.

Macroscale loading of bone generates a complex local mechanical microenvironment that drives osteogenesis and bone mechanoadaptation. One such mechanical stimulus generated is hydrostatic pressure (HP); however, the effect of HP on mesenchymal stem cells (MSCs) and the mechanotransduction mechanisms utilized by these cells to sense this stimulus are yet to be fully elucidated. In this study, we demonstrate that cyclic HP is a potent mediator of cytoskeletal reorganization and increases in osteogenic responses in MSCs. Read More

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December 2018

Bone-targeted agent treatment patterns and the impact of bone metastases on patients with advanced breast cancer in the United States.

Curr Med Res Opin 2018 Dec 14:1-16. Epub 2018 Dec 14.

e Global Health Economics, Amgen Inc. , Thousand Oaks , CA , USA.

Objective: Bone metastases are common among patients with advanced breast cancer, putting patients at increased risk of skeletal-related events (SREs). This study described impact of bone metastases, utilization of bone-targeted agents (BTAs) and physicians' decision processes for BTA use in advanced breast cancer.

Methods: Data were collected using the Adelphi Breast Cancer Disease-Specific Programme in the United States. Read More

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December 2018
1 Read

[Analysis of imaging features and treatment strategies of unilateral maxillary sinus and nasal diseases].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Dec;32(23):1767-1773

Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, 100073, China.

To analyze the imaging features of unilateral maxillary sinus nasal lesions and the selection of treatment strategies based on imaging findings for these lesions. The CT and enhanced MRI data of 64 cases of unilateral maxillary sinus and nasal lesions were selected. The imaging findings and surgery approach were observed and recorded. Read More

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December 2018

[The study for the characteristics of secondary acquired cholesteatoma].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Sep;32(18):1383-1386;1390

Department of Otolaryngology Head and Neck Surgery, the Air Force Military Medical University, Xijing Hospital, Xi'an, 710032, China.

Retrospctive analysed the Characteristics and outcomes of surgical treatment of 18 patients who were diagnosed as secondary acquired cholesteatoma (SAC).Patients with SAC accepted operations were enrolled in this study. Then the factors such as sex, age, cource of history, otorrhea before operation, the size of perforation of tympanic membrane, entry site of epithelium, extension direction, ossicular destruction, tympanosclerosis, tympanum tympani tendon involvement, stage of cholesteatoma(JOS, 2015, Japan),degree of gasification of mastoid(JOS,2015,Japan),air conductive threshold, bone conductive threshold, air-bone gap, the healing of tympanic membrane and the auditory improvement were analyzed. Read More

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September 2018

[Study of cone-beam CT in evaluating the electrode array of cochlear implantation postoperatively].

Authors:
Y S Song S S Gong

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Sep;32(18):1371-1373

Department of Otolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.

To explore ways of evaluating morphological information of cochlea electrode in post cochlear implantation patients, and so as to make sure its value of clinical usage.A series of 52 patients who were diagnosed as severe to profound sensorineural hearing loss and received cochlear implantation were admitted. All the patients had cone-beam CT scanning of the operated side 1 or 2 days after operation. Read More

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September 2018

[Clinical treatment of congenital middle ear cholesteatoma in children].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Jul;32(14):1097-1101

Children's National Medical Center, Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing,100045, China.

To summarize the clinical characteristics and clinical treatment of congenital cholesteatoma (CC) of the middle ear in children, provide early diagnosis methods and explore standardized diagnosis and treatment plan.A retrospective chart review of 94 patients with a diagnosis of middle ear cholesteatoma, in Beijing Children's Hospital, between 2009 and 2015 was carried on. 14 patients with CC were identified using the criteria proposed by Levenson, and were divided into two groups according to the course of disease. Read More

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[Application of technique of HRCT and multipliate plane reconstruction in analysis of image features of superior semicircular canal dehiscence].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Jul;32(14):1082-1085;1090

Department of Radiology, Southern Medical University Nanfang Hospital.

Application of technique of high resolution CT (HRCT) and multipliate plane reconstruction, analyzed the image features of suspicious superior semicircular canal dehiscence (SSCD) to improve the understanding of the SSCD.From January 2016 to April 2017, a total of 230 adult patients who checked temporal bone HRCT were collected in this retrospective study, of which 160 cases (320 ears) of the non-SSCD, 73 cases were male (146 ears), 87 cases were female (174 ears), aged 18 to 70 years old; 70 cases (113 ears) were suspicious diagnosed with SSCD, 33 cases were male (55 ears), 37 cases were female (58 ears), and 18 to 71 years old. The thin section CT scan of the temporal bone translocation was performed on all subjects, then the CT post processing workstation was used for multipliate plane reconstruction (MPR), and the main rows of coronal and oblique sagittal image reconstruction was performed. Read More

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[Analysis of distant metastasis and related factors of head and neck mucosal melanoma].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Jul;32(14):1078-1081

Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100010, China.

To analyze the characteristics and related factors of distant metastasis of head and neck mucosal melanoma, so as to provide better help for the treatment and the control of patients' survival. Retrospectively analyze the patients of head and neck mucosal melanoma who were treated in our hospital from January 2004 to December 2016, through follow-up, of which 37 cases of patients with metastatic disease were analyzed which including the incidence of distant metastasis, specific metastasis and prognosis, time, etc.The age and gender of the patients were controlled, and 37 cases of 1∶1 were selected randomly in the patients who had no distant metastasis. Read More

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Live Confocal Visualization of FXIII Activity.

Clin Lab 2018 Oct;64(11)

In addition to its important functions in angiogenesis, wound healing, bone biology, immunology, pregnancy, and adipogenesis, transglutaminase factor XIII is an outstanding determinant of clot characteristics. Factor XIII mediates clot stability by covalent cross-linking of fibrin-fibrils and inhibition of fibrinolysis. For decades it was assumed that factor XIII mediates the formation of a 3-dimensional net structure of the clot. Read More

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October 2018

Role of "revascularization surgery" in the management of mandibular osteoradionecrotic lesions: a report of twenty-one years of experience.

Clin Otolaryngol 2018 Dec 14. Epub 2018 Dec 14.

Department of Maxillo-Facial Surgery, University Hospital of Amiens, Avenue Laennec, 80000, Amiens, France.

Experiment based on the conviction of a biological dimension of reconstructive surgery where the contribution of a vascularized transplant within irradiated tissue constitutes a physiological response to hypoxia, hypocellularity and hypovascularization characteristic of osteoradionecrotic injury. Between 1992 and 2013, 119 osteoradionecrotic lesions were treated requiring 125 free flaps. Revascularization surgery efficiency rate during the study period of 94%. Read More

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December 2018

Dual Therapy Coating on Micro/Nanoscale Porous Polyetheretherketone to Eradicate Biofilms and Accelerate Bone Tissue Repair.

Macromol Biosci 2018 Dec 14:e1800376. Epub 2018 Dec 14.

School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.

Defective osteogenesis and latent infections continue to be two major issues in the therapy of bone tissue regeneration. In this study, a unique hierarchically micro/nanoscale-architecture is first proposed and produced on polyetheretherketone (PEEK). Besides, a "simvastatin-PLLA film-tobramycin microspheres" delivery system is subsequently fabricated to endow the PEEK implant with osteogenic and antibacterial capabilities. Read More

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December 2018

A Flow Cytometry-Based Assay for High-Throughput Detection and Quantification of Neutrophil Extracellular Traps in Mixed Cell Populations.

Cytometry A 2018 Dec 14. Epub 2018 Dec 14.

Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.

Neutrophil extracellular traps (NETs) are web-like structures composed of decondensed chromatin and antimicrobial proteins that are released into the extracellular space during microbial infections. This active cell death program is known as NETosis. To date, florescence microscopy is the widely accepted method for visualization and quantification of NETs. Read More

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December 2018

Collagen proton fraction from ultrashort echo time magnetization transfer (UTE-MT) MRI modelling correlates significantly with cortical bone porosity measured with micro-computed tomography (μCT).

NMR Biomed 2018 Dec 14:e4045. Epub 2018 Dec 14.

Department of Radiology, University of California, San Diego, CA, USA.

Intracortical bone porosity is a key microstructural parameter that determines bone mechanical properties. While clinical MRI visualizes the cortical bone with a signal void, ultrashort echo time (UTE) MRI can acquire high signal from cortical bone, thus enabling quantitative assessments. Magnetization transfer (MT) imaging combined with UTE-MRI can indirectly assess protons in the bone collagenous matrix, which are inversely related to porosity. Read More

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December 2018

Root dentinal microcracks: a post-extraction experimental phenomenon?

Int Endod J 2018 Dec 14. Epub 2018 Dec 14.

School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK.

Aim: To investigate the prevalence, location, and pattern of preexisting microcracks in non-endodontically treated teeth from fresh cadavers. Micro-computed tomography (micro-CT) technology was used as the analytical tool enabling full screening of the root dentine with the teeth retained in their original alveolar socket.

Methodology: As a pilot study and to validate the present method, a series of 4 high-resolution scans were performed on one bone-block specimen with teeth collected postmortem: (i) entire bone-block including the teeth, (ii) second molar tooth extracted atraumatically from the bone-block (iii) extracted tooth dehydrated to induce dentinal defects and (iv) entire bone-block following reinsertion of the extracted tooth into its matching alveolar socket. Read More

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December 2018

The Role of Free Tissue Transfer in the Management of Chronic Frontal Sinus Osteomyelitis.

Laryngoscope 2018 Dec 14. Epub 2018 Dec 14.

Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.

Objectives/hypothesis: Chronic frontal sinus infection is managed with a combination of medical and surgical interventions. Frontal bone osteomyelitis due to recurrent infection following trauma or prior open surgery may require more significant debridement. Free tissue transfer may allow for extensive debridement with replacement of tissue, and definitive eradication of osteomyelitis. Read More

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December 2018

Angiogenin production in response to hypoxia and l-mimosine in periodontal fibroblasts.

J Periodontol 2018 Dec 14. Epub 2018 Dec 14.

Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.

Background: A major mediator of angiogenesis is angiogenin which is expressed in the early phase of healing in oral tissue engineering strategies. It is unclear how angiogenin is regulated in the periodontal tissue. The objective of this study was to reveal the regulation of angiogenin in response to hypoxia and the hypoxia mimetic agent L-mimosine in periodontal fibroblasts METHODS: Human fibroblasts of the periodontal ligament (PDLF) and the gingiva (GF) in monolayer and spheroid cultures were exposed to hypoxia or L-mimosine. Read More

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December 2018

Cytokine, chemokine and growth factor levels in peri-implant sulcus during wound healing and osseointegration after piezosurgical versus conventional implant site preparation: Randomized, controlled, split-mouth trial.

J Periodontol 2018 Dec 14. Epub 2018 Dec 14.

Division of Oral Diseases, Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden.

Aim: To evaluate the cytokine, chemokine and growth factor levels in peri-implant sulcular fluid (PISF) during healing and osseointegration at osteotomy sites prepared either with piezosurgery (PS) or drills.

Materials And Methods: Fourteen patients having contralateral partial edentulism in the posterior maxilla were enrolled and 38 osteotomies were prepared. Implants were placed with one-stage surgery. Read More

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December 2018

FDG-PET/CT for diagnosis and follow-up of necrotizing (malignant) external otitis.

Laryngoscope 2018 Dec 14. Epub 2018 Dec 14.

Department of Otolaryngology-Head and Neck Surgery, Petach Tikva, Israel.

Objective: Imaging is important for the diagnosis and follow-up of necrotizing external otitis (NEO). The best imaging modality is controversy. To suggest 2-deoxy-2-[fluorine-18] fluoro-D-glucose-positron emission tomography/computed tomography (18F-FDG-PET/CT) as an alternative to technetium-99m and gallium-67 scans for diagnosis and assessment of response to treatment for patients with NEO. Read More

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December 2018

Detection of an HLA-C*03 variant, HLA-C*03:258, in a Taiwanese individual.

Authors:
K L Yang P Y Lin

HLA 2018 Dec 13. Epub 2018 Dec 13.

Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank, and Buddhist Tzu Chi Bone Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Hualien Tzu Chi Hospital, Hualien, Taiwan.

One nucleotide substitution at residue 506 of HLA-C*03:02:01 results in a novel allele, HLA-C*03:258. This article is protected by copyright. All rights reserved. Read More

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December 2018

Characterization of the novel HLA-B*15:271 allele by sequencing-based typing in a Chinese bone marrow donor.

HLA 2018 Dec 13. Epub 2018 Dec 13.

HLA Laboratory, Gansu Red Cross Blood Center, Lanzhou, China.

HLA-B*15:271 differs from HLA-B*15:25:01 by 1 nucleotide substitution at codon 197 in exon 4. This article is protected by copyright. All rights reserved. Read More

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December 2018

Biomaterial-induced multinucleated giant cells express proinflammatory signaling molecules: A histological study in humans.

J Biomed Mater Res A 2018 Dec 13. Epub 2018 Dec 13.

Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.

The biomaterials physicochemical characteristics influence their cellular reaction, degradation and regenerative capacities. Macrophages and multinucleated giant cells (MNGCs) are observed in the augmentation area of biomaterials. This study, for the first time, evaluated the polarization pattern of macrophages and MNGCs in response to two different bone substitute materials (synthetic bone substitute material (SBSM) = NanoBone® vs. Read More

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December 2018
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Toward zonally tailored scaffolds for osteochondral differentiation of synovial mesenchymal stem cells.

J Biomed Mater Res B Appl Biomater 2018 Dec 13. Epub 2018 Dec 13.

Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.

Synovium-derived mesenchymal stem cells (SMSCs) are an emerging cell source for regenerative medicine applications, including osteochondral defect (OCD) repair. However, in contrast to bone marrow MSCs, scaffold compositions which promote SMSC chondrogenesis/osteogenesis are still being identified. In the present manuscript, we examine poly(ethylene) glycol (PEG)-based scaffolds containing zonally-specific biochemical cues to guide SMSC osteochondral differentiation. Read More

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December 2018

An antibiofilm coating of 5-aryl-2-aminoimidazole covalently attached to a titanium surface.

J Biomed Mater Res B Appl Biomater 2018 Dec 13. Epub 2018 Dec 13.

Department of Microbial and Molecular Systems, Centre of Microbial and Plant Genetics (CMPG), KU Leuven, Kasteelpark Arenberg 20 Box 2460, 3001 Leuven, Belgium.

Biofilms, especially those formed by Staphylococcus aureus, play a key role in the development of orthopedic implant infections. Eradication of these infections is challenging due to the elevated tolerance of biofilm cells against antimicrobial agents. In this study, we developed an antibiofilm coating consisting of 5-(4-bromophenyl)-N-cyclopentyl-1-octyl-1H-imidazol-2-amine, designated as LC0024, covalently bound to a titanium implant surface (LC0024-Ti). Read More

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December 2018
1 Read

The interaction of Chitosan and BMP-2 tuned by deacetylation degree and pH value.

J Biomed Mater Res A 2018 Dec 13. Epub 2018 Dec 13.

Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China.

Integrating proteins with chitosan (CS) can not only improve the biocompatibility of CS, but also enable the sustained release of proteins. The deacetylation degree (DD) and pH conditions are considered as the two most important factors affecting the interaction between CS and proteins. In this study, the effects of CS with different DDs and pH conditions on bone morphogenetic protein-2 (BMP-2) adsorption were evaluated using the molecular dynamics (MD) method. Read More

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December 2018

Mineralocorticoid receptor deficiency improves the therapeutic effects of mesenchymal stem cells for myocardial infarction via enhanced cell survival.

J Cell Mol Med 2018 Dec 13. Epub 2018 Dec 13.

Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China.

The poor survival of stem cells seriously limits their therapeutic efficacy for myocardial infarction (MI). Mineralocorticoid receptor (MR) activation plays an important role in the pathogenesis of multiple cardiovascular diseases. Here, we examined whether MR silencing in bone marrow derived mesenchymal stem cells (MSCs) could improve MSCs' survival and enhance their cardioprotective effects in MI. Read More

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December 2018

Initial evaluation of PET/CT with F-FSU-880 targeting prostate-specific membrane antigen in prostate cancer patients.

Cancer Sci 2018 Dec 13. Epub 2018 Dec 13.

Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.

This first-in-man study was performed to evaluate the safety, whole-body distribution, dose estimation and lesion accumulation of F-FSU-880, a newly-developed probe targeting prostate-specific membrane antigen (PSMA). Six prostate cancer patients with known metastatic lesions underwent serial whole-body positron emission tomography/computed tomography (PET/CT) with F-FSU-880. Blood and urine were analyzed before and after PET/CT. Read More

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December 2018

68Ga-PSMA-11 PET-CT study in prostate cancer patients with biochemical recurrence and non-contributive 18F-Choline PET-CT: Impact on therapeutic decision-making and biomarker changes.

Prostate 2018 Dec 14. Epub 2018 Dec 14.

Nuclear Medicine Unit, ICO Cancer Center, Saint Herblain, Pays de la Loire, France.

Background: In this retrospective study, we investigated the impact of Ga-PSMA-11 PET-CT (PSMA PET-CT) upon the treatment plan and therapeutic response obtained for Prostate Cancer (PCa) patients presenting an occult biochemical recurrence.

Methods: Forty-two patients with previously negative or doubtful 18F-Choline (FCH) were enrolled. PET images were recorded 1 h after injection of tracer. Read More

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December 2018

Characterization of the torsional structural properties of feline femurs and surrogate bone models for mechanical testing of orthopedic implants.

Vet Surg 2018 Dec 13. Epub 2018 Dec 13.

Department of Small Animal Clinical Sciences, Michigan State University, East Lansing, Michigan.

Objective: To characterize the torsional structural properties of the feline femur and design a bone model surrogate for mechanical testing of feline orthopedic implants.

Study Design: Experimental.

Sample Population: Paired feline femurs (n = 30) and bone models (8 materials, n = 4/group). Read More

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December 2018

Differential gene expression profile in monocytic myeloid-derived suppressor cells at maternal-fetal interface in a mouse model of spontaneous abortion.

J Cell Physiol 2018 Dec 13. Epub 2018 Dec 13.

International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China.

Abstractbackground: Monocytic myeloid-derived suppressor cells (MO-MDSCs) play an important role in maintaining normal pregnancy. However, it is still not clear what kind of changes in MO-MDSCs may lead to miscarriage, and which gene expression changes take place when MO-MDSCs migrate to the uterus as bone marrow-derived cells.

Methods: We used flow sorting technology to obtain MO-MDSCs from the maternal-fetal interface and bone marrow, respectively. Read More

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December 2018

Artocarpin induces cell apoptosis in human osteosarcoma cells through endoplasmic reticulum stress and reactive oxygen species.

J Cell Physiol 2018 Dec 13. Epub 2018 Dec 13.

Central Laboratory, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan, Republic of China.

Osteosarcoma is a malignant primary bone tumor that responds poorly to both chemotherapy and radiation therapy. However, because of side effects and drug resistance in chemotherapy and the insufficiency of an effective adjuvant therapy for osteosarcoma, it is necessary to research novel treatments. This study was the first to investigate the anticancer effects of the flavonoid derivative artocarpin in osteosarcoma. Read More

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December 2018

Activating mutations in the MAP-kinase pathway define non-ossifying fibroma of bone.

J Pathol 2018 Dec 13. Epub 2018 Dec 13.

Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany.

Non-ossifying fibroma, which occasionally results in pathologic fracture, is considered the most common benign and self-limiting lesion of the growing skeleton. By DNA sequencing we have identified hotspot KRAS, FGFR1 and NF1 mutations in 48 of 59 patients (81.4%) with NOF, at allele frequencies ranging from 0. Read More

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December 2018

Genome-Wide Maps of Transcription Regulatory Elements and Transcription Enhancers in Development and Disease.

Compr Physiol 2018 Dec 13;9(1):439-455. Epub 2018 Dec 13.

Blood Research Institute, BloodCenter of Wisconsin, a part of Versiti, Milwaukee, Wisconsin, USA.

Gene expression is regulated by numerous elements including enhancers, insulators, transcription factors, and architectural proteins. Regions of DNA distal to the transcriptional start site, called enhancers, play a central role in the temporal and tissue-specific regulation of gene expression through RNA polymerase II. The identification of enhancers and other cis regulatory elements has largely been possible due to advances in next generation sequencing technologies. Read More

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December 2018
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Regulation of Red Blood Cell Volume with Exercise Training.

Compr Physiol 2018 Dec 13;9(1):149-164. Epub 2018 Dec 13.

Center for Physical Activity Research, University Hospital Copenhagen, Denmark.

Hypervolemia is a hallmark of endurance training (ET) and manifests by similar elevations in plasma (PV) and red blood cell volume (RBCV) so that hematocrit largely remains unaltered following weeks/months of training. While the mechanisms facilitating PV expansion with ET have been previously reviewed extensively this is not the case for RBCV. Endurance champions may have 40% more RBCV than controls and RBCV may increase up to 10% following months of regular exercise training in healthy individuals. Read More

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December 2018
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