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https://www.readbyqxmd.com/read/28551927/-percutaneous-correction-of-forefoot-deformities-in-diabetic-patients-in-order-to-prevent-pressure-sores-technique-and-results-in-20-consecutive-patients
#1
Mustafa Yassin, Avraham Garti, Eyal Heller, Moshe Weissbrot, Dror Robinson
INTRODUCTION: Diabetes mellitus is a 21st century pandemic. Due to life-span prolongation combined with the increased rate of diabetes, a growing population of patients is afflicted with neuropathic foot deformities. Traditional operative repair of these deformities is associated with a high complication rate and relatively common infection incidence. In recent years, in order to prevent these complications, percutaneous deformity correction methods were developed. OBJECTIVES: Description of experience accumulated in treating 20 consecutive patients with diabetic neuropathic foot deformities treated in a percutaneous fashion...
April 2017: Harefuah
https://www.readbyqxmd.com/read/28551896/-review-of-common-pathogens-in-the-bone-and-blood-cultures-and-antibiotic-treatment-in-patients-with-sternal-osteomyelitis
#2
Michal Benkler, Ori Shulman, Yoav Avrahamy, David Mendes, Yoav Arus, Ron Fishel, Amos Leviav, Dana Egozi
AIMS: This study concentrates on microbiological data collection of deep sternal wounds to delineate early and correct antibiotic therapy. BACKGROUND: Deep sternal wound infection, mediastinitis and sternal osteomyelitis are devastating and life-threatening complications of median-sternotomy incisions after cardiac surgical procedures. The incidence of surgical wound infection in sternotomies should be similar to that in any clean surgical procedure (i.e. approximately 2%)...
February 2017: Harefuah
https://www.readbyqxmd.com/read/28551639/a-novel-near-infrared-fluorescent-protein-irfp720-facilitates-transcriptional-profiling-of-prostate-cancer-bone-metastasis-in-mice
#3
Mariko Honda, Satomi Yogosawa, Minori Kamada, Yuko Kamata, Takahiro Kimura, Yusuke Koike, Toru Harada, Hiroyuki Takahashi, Shin Egawa, Kiyotsugu Yoshida
BACKGROUND: Bone represents a frequent site of prostate cancer metastasis. As the molecular mechanism remains unclear, an accessible animal model is required. MATERIALS AND METHODS: We established a novel murine metastasis model using near-infrared fluorescent protein iRFP720-labelled prostate cancer (PC3) cells. To clarify transcriptional alterations during metastasis, iRFP720-PC3 cells were intracardially injected into male mice. mRNA expression profiles of metastasis in bone using marrow cancer cells extracted by centrifugal separation and cell sorting were compared with those of parental cells by microarray...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28550428/partial-component-retained-two-stage-reconstruction-for-chronic-infection-after-uncemented-total-hip-arthroplasty-results-of-sixteen-cases-after-five-years-of-follow-up
#4
Kun-Hui Chen, Shang-Wen Tsai, Po-Kuei Wu, Cheng-Fong Chen, Hsin-Yi Wang, Wei-Ming Chen
PURPOSE: Two-stage reconstruction with total implant removal and re-implantation after infection control is considered the gold standard treatment for infection after hip arthroplasty. However, removal of the well-fixed stem or cup may cause substantial bone loss and other complications, thereby making reconstruction difficult. We evaluated whether an infection post total hip arthroplasty can be treated without removal of the radiographically and clinically well-fixed femoral stem or acetabular cup...
May 27, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28550198/host-derived-cd70-suppresses-murine-graft-versus-host-disease-by-limiting-donor-t-cell-expansion-and-effector-function
#5
Nicholas D Leigh, Rachel E O'Neill, Wei Du, Chuan Chen, Jingxin Qiu, Jonathan D Ashwell, Philip L McCarthy, George L Chen, Xuefang Cao
Allogeneic hematopoietic cell transplantation (allo-HCT) is a potentially curative treatment for hematologic and immunologic diseases. However, graft-versus-host disease (GVHD) may develop when donor-derived T cells recognize and damage genetically distinct normal host tissues. In addition to TCR signaling, costimulatory pathways are involved in T cell activation. CD27 is a TNFR family member expressed on T cells, and its ligand, CD70, is expressed on APCs. The CD27/CD70 costimulatory pathway was shown to be critical for T cell function and survival in viral infection models...
May 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28549783/irinotecan-temozolomide-with-temsirolimus-or-dinutuximab-in-children-with-refractory-or-relapsed-neuroblastoma-cog-anbl1221-an-open-label-randomised-phase-2-trial
#6
Rajen Mody, Arlene Naranjo, Collin Van Ryn, Alice L Yu, Wendy B London, Barry L Shulkin, Marguerite T Parisi, Sabah-E-Noor Servaes, Mitchell B Diccianni, Paul M Sondel, Julia G Bender, John M Maris, Julie R Park, Rochelle Bagatell
BACKGROUND: Outcomes for children with relapsed and refractory neuroblastoma are dismal. The combination of irinotecan and temozolomide has activity in these patients, and its acceptable toxicity profile makes it an excellent backbone for study of new agents. We aimed to test the addition of temsirolimus or dinutuximab to irinotecan-temozolomide in patients with relapsed or refractory neuroblastoma. METHODS: For this open-label, randomised, phase 2 selection design trial of the Children's Oncology Group (COG; ANBL1221), patients had to have histological verification of neuroblastoma or ganglioneuroblastoma at diagnosis or have tumour cells in bone marrow with increased urinary catecholamine concentrations at diagnosis...
May 23, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28548484/controlled-release-of-naringin-in-metal-organic-frameworks-mofs-loaded-mineralized-collagen-coating-to-simultaneously-enhance-osseointegration-and-antibacterial-activity
#7
Mengfei Yu, Dongqi You, Junjun Zhuang, Suya Lin, Lingqing Dong, Shengtao Weng, Bin Zhang, Kui Cheng, Wen-Jian Weng, Huiming Wang
Two important goals in orthopedic implants research are to promote osseointegration and prevent infection. However, much of previous efforts have been paid on the design of coatings either to enhance osseointegration while ignoring antibacterial activity or vice versa, to prevent infection while ignoring bone integration. Here, we designed a multifunctional mineralized collagen coating on titanium with the aid of metal-organic frameworks (MOFs) nanocrystals to control the release of naringin, a Chinese herbal medicine which could promote osseointegration and prevent bacterial infection...
May 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28548373/role-of-de-n-acetylase-pgab-from-aggregatibacter-actinomycetemcomitans-in-exopolysaccharide-export-in-biofilm-mode-of-growth
#8
Mayilvahanan Shanmugam, Abimbola O Oyeniyi, Chaitra Parthiban, Satish Kumar Gujjarlapudi, Gerald B Pier, Narayanan Ramasubbu
Aggregatibacter actinomycetemcomitans, a Gram-negative bacterium, is the causative agent of localized aggressive periodontitis. Attachment to a biotic surface is a critical first step in the A. actinomycetemcomitans infection process for which exopolysaccharides have been shown to be essential. In addition, the pga operon, containing genes encoding for biosynthetic proteins for poly-N-acetyl glucosamine (PNAG), plays a key role in A. actinomycetemcomitans virulence, as a mutant strain lacking the pga operon induces significantly less bone resorption...
May 26, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28548038/marek-s-disease-virus-infection-of-phagocytes-a-de-novo-in-vitro-infection-model
#9
Pankaj Chakraborty, Lonneke Vervelde, Robert G Dalziel, Peter S Wasson, Venugopal Nair, Bernadette M Dutia, Pete Kaiser
Marek's disease virus (MDV) is an alphaherpesvirus that induces T-cell lymphomas in chickens. Natural infections in vivo are caused by the inhalation of infected poultry house dust and it is presumed that MDV infection is initiated in the macrophages from where the infection is passed to B cells and activated T cells. Virus can be detected in B and T cells and macrophages in vivo, and both B and T cells can be infected in vitro. However, attempts to infect macrophages in vitro have not been successful. The aim of this study was to develop a model for infecting phagocytes [macrophages and dendritic cells (DCs)] with MDV in vitro and to characterize the infected cells...
May 26, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28547674/diagnostic-accuracy-of-various-modalities-relative-to-open-bone-biopsy-for-detection-of-long-bone-posttraumatic-osteomyelitis
#10
Vivek Chadayammuri, Benoit Herbert, Jiandong Hao, Andreas Mavrogenis, Juan C Quispe, Ji Wan Kim, Heather Young, Mark Hake, Cyril Mauffrey
BACKGROUND: Long bone posttraumatic osteomyelitis (PTOM) is a relatively common complication following surgical fixation of open fractures. There is a lacking consensus on ideal strategies for diagnostic evaluation of long bone PTOM. While open bone biopsy and culture is considered the 'gold diagnostic standard,' its cost and invasiveness are often prohibitive and have prompted the search for alternate diagnostic methods. OBJECTIVE: To evaluate the sensitivity and specificity of various diagnostic modalities relative to open bone biopsy and culture for the detection of long bone PTOM...
May 25, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28547573/results-of-lumbar-spondylodeses-using-different-bone-grafting-materials-after-transforaminal-lumbar-interbody-fusion-tlif
#11
Nicolas Heinz vonderHoeh, Anna Voelker, Christoph-Eckhard Heyde
PURPOSE: Can a mixture of hydroxyapatite (HA) and autologous bone from decompression sites produce similar results when used for transforaminal lumbar interbody fusion (TLIF)? In the current literature, autologous iliac crest bone grafts (ICBGs) have been reported the gold standard for this procedure. Indeed, to date, no clinical data have confirmed that a mixture of equal volumes of HA and local autologous bone produce similar results in term of fusion as the same volume of autologous ICBG alone...
May 25, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28546774/injuries-and-illnesses-in-a-cohort-of-elite-youth-alpine-ski-racers-and-the-influence-of-biological-maturity-and-relative-age-a-two-season-prospective-study
#12
Lisa Müller, Carolin Hildebrandt, Erich Müller, Renate Oberhoffer, Christian Raschner
BACKGROUND: Studies on injuries and illnesses involving youth ski racers younger than 15 years are lacking in the literature. The aim of this study was prospectively to assess the incidence, prevalence, and severity of traumatic and overuse injuries, as well as illnesses of elite youth ski racers with regard to sex, biological maturity status, and relative age. SUBJECTS AND METHODS: A prospective, longitudinal cohort design was used to monitor the anthropometrics, training characteristics, traumatic and overuse injuries, and illnesses of 82 elite youth ski racers (51 males, 31 females, age 9-14 years) over 2 consecutive years...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28545155/rapid-diagnostic-tests-for-typhoid-and-paratyphoid-enteric-fever
#13
REVIEW
Lalith Wijedoru, Sue Mallett, Christopher M Parry
BACKGROUND: Differentiating both typhoid (Salmonella Typhi) and paratyphoid (Salmonella Paratyphi A) infection from other causes of fever in endemic areas is a diagnostic challenge. Although commercial point-of-care rapid diagnostic tests (RDTs) for enteric fever are available as alternatives to the current reference standard test of blood or bone marrow culture, or to the widely used Widal Test, their diagnostic accuracy is unclear. If accurate, they could potentially replace blood culture as the World Health Organization (WHO)-recommended main diagnostic test for enteric fever...
May 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28544005/hiv-1-p55-gag-protein-induces-senescence-of-human-bone-marrow-mesenchymal-stem-cells-and-reduces-their-capacity-to-support-expansion-of-hematopoietic-stem-cells-in-vitro
#14
Ya-Hong Yuan, Shan-Shan Zhao, Xiao-Li Wang, Zhi-Ping Teng, Dong-Sheng Li, Yi Zeng
Patients with human immunodeficiency virus-1 (HIV-1) infection often present with hematopoietic failure. As the important hematopoietic support cells in the bone marrow (BM), the bone marrow mesenchymal stem cells (BMSCs) can be impacted by HIV proteins that are released by infected cells within BM. In this study, we tested whether HIV protein p55-gag could induce senescence of BMSCs and reduce their capacity to support expansion of hematopoietic stem cells in vitro. BMSCs were chronically treated with p55-gag (BMSCgag ) for up to 20 days, and their proliferative activity and senescence makers were compared to nontreated cells (BMSCcon )...
May 25, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28543876/application-of-molecular-microbiological-and-immunological-tests-for-the-diagnosis-of-bone-and-joint-tuberculosis
#15
Yinghua Tang, Lianli Yin, Shifu Tang, Hongyu Zhang, Jihui Lan
BACKGROUND: To evaluate the application of interferon gamma release assay (IGRA), rifampicin resistant real-time fluorescence quantitative PCR technique Xpert Mycobacterium tuberculosis/rifampicin (Xpert MTB/RIF), and the levels of TNF-α and TGF-β in the diagnosis of bone and joint tuberculosis. METHODS: Eighty-six patients with bone and joint tuberculosis, diagnosed by pathology or microbiology, were examined by Xpert MTB/RIF and IGRA (T-SPOT. TB) for Mycobacterium tuberculosis infection, and the TNF-α and TGF-β levels of the patients were measured...
May 22, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28543702/microencapsulation-of-rifampicin-a-technique-to-preserve-the-mechanical-properties-of-bone-cement
#16
P Sanz-Ruiz, E Carbó-Laso, J C Del Real-Romero, F Arán-Ais, Y Ballesteros-Iglesias, E Paz-Jiménez, M Sánchez-Navarro, M A Pérez-Limiñana, J Vaquero-Martín
Two-stage exchange with antibiotic-loaded bone cement spacers remains the gold standard for chronic periprosthetic joint infection(PJI). Rifampicin is highly efficient on stationary-phase staphylococci in biofilm; however, its addition to PMMA to manufacture spacers prevents polymerization and reduces mechanical properties. Isolation of rifampicin during polymerization by microencapsulation could allow manufacturing rifampicin-loaded bone cement maintaining elution and mechanical properties. Microcapsules of rifampicin with alginate, polyhydroxybutyratehydroxyvalerate (PHBV), ethylcellulose and stearic acid (SA) were synthesized...
May 23, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28542326/the-murine-cytomegalovirus-m35-protein-antagonizes-type-i-ifn-induction-downstream-of-pattern-recognition-receptors-by-targeting-nf-%C3%AE%C2%BAb-mediated-transcription
#17
Baca Chan, Vladimir Gonçalves Magalhães, Niels A W Lemmermann, Vanda Juranić Lisnić, Markus Stempel, Kendra A Bussey, Elisa Reimer, Jürgen Podlech, Stefan Lienenklaus, Matthias J Reddehase, Stipan Jonjić, Melanie M Brinkmann
The type I interferon (IFN) response is imperative for the establishment of the early antiviral immune response. Here we report the identification of the first type I IFN antagonist encoded by murine cytomegalovirus (MCMV) that shuts down signaling following pattern recognition receptor (PRR) sensing. Screening of an MCMV open reading frame (ORF) library identified M35 as a novel and strong negative modulator of IFNβ promoter induction following activation of both RNA and DNA cytoplasmic PRR. Additionally, M35 inhibits the proinflammatory cytokine response downstream of Toll-like receptors (TLR)...
May 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28540568/-tibial-pilon-fractures-advoidance-and-therapy-of-complications
#18
REVIEW
Ralph Gaulke, Christian Krettek
Because of the complex fracture morphology and vulnerable soft tissue coverage, fractures of the tibial pilon are difficult to treat. Complications are more common than in bi- or trimalleolar fractures. The surgeon has to know about the special risks of these injuries to avoid complications. Early complications are soft tissue necrosis, persisting fragment dislocations after surgery, loss of reposition and deep wound infection. The surgeon has to be aware of early signs of compartment-syndrome and chronic regional pain syndrome (CRPS)...
May 24, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28540473/innovative-use-of-single-incision-internal-fixation-of-distal-clavicle-fractures-augmented-with-coracoclavicular-stabilisation
#19
Rajpal Nandra, Tomasz Kowalski, Socrates Kalogrianitis
INTRODUCTION: The management of displaced fractures of the distal clavicle remains controversial, particularly in younger patients where there is no consensus as to which surgical intervention is best. Each surgical method has unique surgical complications and rates of persistent pain and post-traumatic arthritis. We report an innovative surgical technique using a plate fixation augmented with minimally invasive tension slide coracoclavicular fixation using a cortical tenodesis button (8...
May 24, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28540152/epidemiological-clinical-and-microbiological-characteristics-of-patients-with-post-traumatic-osteomyelitis-of-limb-fractures-in-southwest-china-a-hospital-based-study
#20
Jiachen Peng, Youliang Ren, Wenbin He, Zhengdao Li, Jin Yang, Yi Liu, Zhonghui Zheng, Stephen L Kates, Edward M Schwarz, Chao Xie, Youjia Xu
Objective To determine the epidemiological, clinical and microbiological characteristics, of patients with post-traumatic osteomyelitis of extremity fractures, and provide evidence-based guidelines for early diagnosis and treatment, including empiric antibiotic therapy. Methods Human subject research was performed using institutional review board approved protocols. A retrospective chart review was conducted on 5,368 patients diagnosed with extremity traumatic fractures from January 1, 2012 to December 31, 2015, to identify osteomyelitis patients...
2017: J Bone Jt Infect
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