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https://www.readbyqxmd.com/read/29232643/mechanical-corrosion-and-biocompatibility-behaviour-of-mg-3zn-ha-biodegradable-composites-for-orthopaedic-fixture-accessories
#1
Satish Jaiswal, R Manoj Kumar, Pallavi Gupta, Murali Kumaraswamy, Partha Roy, Debrupa Lahiri
Development of biodegradable implants has grown into one of the important areas in medical science. Degradability becomes more important for orthopaedic accessories used to support fractured and damaged bones, in order to avoid second surgery for their removal after healing. Clinically available biodegradable orthopaedic materials are mainly made of polymers or ceramics. These orthopaedic accessories have an unsatisfactory mechanical strength, when used in load-bearing parts. Magnesium and its alloys can be suitable candidate for this purpose, due to their outstanding strength to weight ratio, biodegradability, non-toxicity and mechanical properties, similar to natural bone...
November 21, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29231956/gender-diversity-sexual-orientation-and-bone-health-in-the-maturing-dancer
#2
REVIEW
Derrick D Brown
Gender identity forms an important aspect of still developing youths. Gender is traditionally classified into two distinct categories, female and male. Transgender is a general term that describes individuals who self-identity as male, female, both, or neither (i.e., gender fluid) and do not match the assigned at-birth gender. Adolescent transgender individuals are currently a marginal population. There are limited demographics on youths, but as of 2014 an estimate of 1.4 million adults in the USA identified as transgender...
December 2017: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/29231857/biodegradable-scaffolds-for-bone-regeneration-combined-with-drug-delivery-systems-in-osteomyelitis-therapy
#3
REVIEW
Rossella Dorati, Antonella DeTrizio, Tiziana Modena, Bice Conti, Francesco Benazzo, Giulia Gastaldi, Ida Genta
A great deal of research is ongoing in the area of tissue engineering (TE) for bone regeneration. A possible improvement in restoring damaged tissues involves the loading of drugs such as proteins, genes, growth factors, antibiotics, and anti-inflammatory drugs into scaffolds for tissue regeneration. This mini-review is focused on the combination of the local delivery of antibiotic agents with bone regenerative therapy for the treatment of a severe bone infection such as osteomyelitis. The review includes a brief explanation of scaffolds for bone regeneration including scaffolds characteristics and types, a focus on severe bone infections (especially osteomyelitis and its treatment), and a literature review of local antibiotic delivery by the combination of scaffolds and drug-delivery systems...
December 12, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/29231774/modern-management-of-diabetic-foot-osteomyelitis-the-when-how-and-why-of-conservative-approaches
#4
Javier Aragón-Sánchez, Benjamin A Lipsky
Introduction Diabetic foot osteomyelitis (DFO) has long been considered a complex infection that is both difficult to diagnose and treat, and is associated with a high rate of relapse and limb loss. Areas covered DFO can usually be diagnosed by a combination of clinical evaluation, serum inflammatory markers and plain X-ray. When the results of these procedures are negative or contradictory, advanced imaging tests or bone biopsy may be necessary. Staphylococcus aureus remains the most frequent microorganism isolated from bone specimens, but infection is often polymicrobial...
December 12, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/29231243/neuromuscular-electrical-stimulation-nmes-for-patellofemoral-pain-syndrome
#5
REVIEW
Ana Luiza C Martimbianco, Maria Regina R Torloni, Brenda Ng Andriolo, Gustavo Jm Porfírio, Rachel Riera
BACKGROUND: Patellofemoral pain syndrome, now generally referred to as patellofemoral pain (PFP), is one of the most common orthopaedic disorders, characterised by pain in the anterior or retropatellar knee region. Neuromuscular electrical stimulation (NMES) has been proposed generally as a complementary treatment, associated with other interventions such as exercise, or as a single treatment to increase muscle force, reduce knee pain, and improve function. OBJECTIVES: To assess the effects (benefits and harms) of neuromuscular electrical stimulation for people with patellofemoral pain...
December 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29231159/facet-joint-injections-for-non-specific-low-back-pain-a-feasibility-rct
#6
Saowarat Snidvongs, Rod S Taylor, Alia Ahmad, Simon Thomson, Manohar Sharma, Angela Farr, Deborah Fitzsimmons, Stephanie Poulton, Vivek Mehta, Richard Langford
BACKGROUND: Pain of lumbar facet-joint origin is a common cause of low back pain in adults and may lead to chronic pain and disability, with associated health and socioeconomic implications. The socioeconomic burden includes an inability to return to work resulting in loss of productivity in addition to direct and indirect health-care utilisation costs. Lumbar facet-joints are paired synovial joints between the superior and inferior articular processes of consecutive lumbar vertebrae and between the fifth lumbar vertebra and the sacrum...
December 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29230932/a-multi-modality-tracking-navigation-and-calibration-for-a-flexible-robotic-drill-system-for-total-hip-arthroplasty
#7
Ahmad Nazmi Bin Ahmad Fuad, Kamal Deep, Wei Yao
BACKGROUND: This paper presents a novel multi-modality tracking and navigation system that provides a unique capability to guild a flexible drill tip inside the bone with accurate curved tunnelling. METHODS: As the flexible drill tip cannot be tracked optically inside the bone, this research focuses on developing a hybrid tracking and navigation system for tracking a flexible drill tip by using both optical and kinematic tracking. The tracking information is used to guide the THA (total hip arthroplasty) procedure, providing a real-time virtual model of the flexible drill...
December 12, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29230197/exosome-mediated-genetic-information-transfer-a-missing-piece-of-osteoblast-osteoclast-communication-puzzle
#8
Pengbin Yin, Houchen Lv, Yi Li, Yuan Deng, Licheng Zhang, Peifu Tang
The skeletal system functions and maintains itself based on communication between cells of diverse origins, especially between osteoblasts (OBs) and osteoclasts (OCs), accounting for bone formation and resorption, respectively. Previously, protein-level information exchange has been the research focus, and this has been discussed in detail. The regulative effects of microRNAs (miRNAs) on OB and OC ignite the question as to whether genetic information could be transferred between bone cells. Exosomes, extracellular membrane vesicles 30-100 nm in diameter, have recently been demonstrated to transfer functional proteins, mRNAs, and miRNAs, and serve as mediators of intercellular communication...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29230096/fibroblast-growth-factor-receptor-2-fgfr2-mutation-related-syndromic-craniosynostosis
#9
REVIEW
Saïd C Azoury, Sashank Reddy, Vivek Shukla, Chu-Xia Deng
Craniosynostosis results from the premature fusion of cranial sutures, with an incidence of 1 in 2,100-2,500 live births. The majority of cases are non-syndromic and involve single suture fusion, whereas syndromic cases often involve complex multiple suture fusion. The fibroblast growth factor receptor 2 (FGFR2) gene is perhaps the most extensively studied gene that is mutated in various craniosynostotic syndromes including Crouzon, Apert, Pfeiffer, Antley-Bixler, Beare-Stevenson cutis gyrata, Jackson-Weiss, Bent Bone Dysplasia, and Seathre-Chotzen-like syndromes...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29229501/proceedings-of-the-2017-santa-fe-bone-symposium-insights-and-emerging-concepts-in-the-management-of-osteoporosis
#10
REVIEW
E Michael Lewiecki, John P Bilezikian, John J Carey, Richard M Dell, Catherine M Gordon, Steven T Harris, Michael R McClung, Paul D Miller, Michael Rosenblatt
The 18th Annual Santa Fe Bone Symposium was held on August 4-5, 2017, in Santa Fe, New Mexico, USA. The symposium convenes health-care providers and clinical researchers to present and discuss clinical applications of recent advances in research of skeletal diseases. The program includes lectures, oral presentations by endocrinology fellows, case-based panel discussions, and breakout sessions on topics of interest, with emphasis on participation and interaction of all participants. Topics included the evaluation and treatment of adult survivors with pediatric bone diseases, risk assessment and management of atypical femur fractures, nonpharmacologic strategies in the care of osteoporosis, and skeletal effects of parathyroid hormone with opportunities for therapeutic intervention...
November 20, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29229388/lncrna-snhg12-promotes-tumorigenesis-and-metastasis-in-osteosarcoma-by-upregulating-notch2-by-sponging-mir-195-5p
#11
Sheng Zhou, Ling Yu, Min Xiong, Guo Dai
Osteosarcoma is the most common primary malignant bone tumor and has a high fatality rate in children and adolescents. Recently, an increasing amount of evidence has demonstrated that lncRNAs have crucial roles in regulating biological characteristics in malignant tumors. Therefore, this research was carried out to uncover the biological function and the potential molecular mechanism of SNHG12 in osteosarcoma. In this study, we found that SNHG12 was significantly upregulated in both osteosarcoma tissues and cell lines and osteosarcoma patients with high levels of SNHG12 tended to have a poor prognosis...
December 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29229365/repair-of-maxillary-cystic-bone-defects-with-mesenchymal-stem-cells-seeded-on-a-cross-linked-serum-scaffold
#12
Luis Miguel Redondo, Verónica García, Beatriz Peral, Alberto Verrier, José Becerra, Ana Sánchez, Javier García-Sancho
Tissue engineering combining cross-linked serum scaffolds with bone-derived mesenchymal stem cells has displayed excellent results for repair of maxillofacial bone defects in animal models, but it had not been tested in humans yet. We present here a pilot clinical trial using autologous bone-derived mesenchymal stem cells (H-MSV) grown in a serum cross-linked scaffold (BioMax) for treatment of maxillary cysts in 9 patients. Cells obtained from alveolar bone were seeded in the BioMax scaffold prepared from autologous serum, expanded under GMP conditions, and subjected to osteogenic differentiation for 3-4 weeks before application...
November 16, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29228887/can-whole-body-vibration-exercises-affect-growth-hormone-concentration-a-systematic-review
#13
Laisa Liane Paineiras-Domingos, Danúbia da Cunha de Sá-Caputo, Eloá Moreira-Marconi, Danielle Soares Morel, Carla da Fontoura Dionello, Cintia Renata Sousa-Gonçalves, Éric Heleno Freire Ferreira Frederico, Pedro Jesus Marín, Sofia Tamini, Alessandro Sartorio, Mario Bernardo-Filho
Whole body vibration (WBV) has been recognized as an effective alternative exercise modality to resistance exercise for its ability in enhancing force and power, generating capacity in skeletal muscle, increasing bone mass and improving cardiovascular function. Since the effect of WBV exercises on growth hormone (GH) levels has been never compared and discussed, the aim of this study was to review systematically the literature to verify the WBV effects on GH concentration. By using PubMed, Scopus and PEDRo databases with the keywords 'growth hormone' or GH and 'whole body vibration' or WBV, we found and analysed 12 papers (182 subjects recruited), verifying their level of evidence (National Health and Medical Research Council hierarchy of evidence) and the methodological quality (PEDRo scale)...
October 2017: Growth Factors
https://www.readbyqxmd.com/read/29228713/cell-surface-thomsen-friedenreich-proteome-profiling-of-metastatic-prostate-cancer-cells-reveals-potential-link-with-cancer-stem-cell-like-phenotype
#14
Feng Li, Olga V Glinskii, Brian P Mooney, Kate Rittenhouse-Olson, Kenneth J Pienta, Vladislav V Glinsky
The tumor-associated Thomsen-Friedenreich glycoantigen (TF-Ag) plays an important role in hematogenous metastasis of multiple cancers. The LTQ Orbitrap LC-MS/MS mass spectrometry analysis of cell surface TF-Ag proteome of metastatic prostate cancer cells reveals that several cell surface glycoproteins expressing this carbohydrate antigen in prostate cancer (CD44, α2 integrin, β1 integrin, CD49f, CD133, CD59, EphA2, CD138, transferrin receptor, profilin) are either known as stem cell markers or control important cancer stem-like cell functions...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227827/determining-when-a-fracture-occurred-does-the-method-matter-analysis-of-the-similarity-of-three-different-methods-for-estimating-time-since-fracture-of-juvenile-long-bones
#15
Anne Drury, Craig Cunningham
Radiographic fracture date estimation is a critical component of skeletal trauma analysis in the living. Several timetables have been proposed for how the appearance of radiographic features can be interpreted to provide a likely time frame for fracture occurrence. This study compares three such timetables for pediatric fractures, by Islam et al. (2000), Malone et al. (2011), and Prosser et al. (2012), in order to determine whether the fracture date ranges produced by using these methods are in agreement with one another...
November 26, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29227562/crosstalk-between-substance-p-and-calcitonin-gene-related-peptide-during-heterotopic-ossification-in-murine-achilles-tendon
#16
Ceren Tuzmen, Kostas Verdelis, Lee Weiss, Phil Campbell
Heterotopic ossification (HO) is abnormal bone formation within soft tissue, usually predisposed by neurogenic or musculoskeletal trauma. Inflammation resulting from trauma is considered to be the main trigger for HO by eliciting changes within the injury site, including elevation of bone morphogenetic proteins (BMPs). Recent research, however, has also associated changes in sensory neuropeptide expression with HO. Substance P (SP) and calcitonin gene-related peptide (CGRP) are two of those neuropeptides that have been implicated with various aspects of HO, including regulation of inflammation and BMP signaling...
December 11, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29227353/epidemiology-of-osteoarthritis-literature-update
#17
Ernest R Vina, C Kent Kwoh
PURPOSE OF REVIEW: The purpose of this review is to highlight recent studies of osteoarthritis epidemiology, including research on prevalence, disease impact, and potential risk factors. RECENT FINDINGS: Osteoarthritis is highly prevalent in the United States and around the globe. It is a leading cause of disability and can negatively impact people's physical and mental well being. Healthcare resources and costs associated with managing the disease can be substantial...
December 8, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/29225693/cytoreductive-prostate-radiotherapy-in-oligometastatic-prostate-cancer-a-single-centre-analysis-of-toxicity-and-clinical-outcome
#18
Giulia Riva, Giulia Marvaso, Matteo Augugliaro, Dario Zerini, Cristiana Fodor, Gennaro Musi, Ottavio De Cobelli, Roberto Orecchia, Barbara Alicja Jereczek-Fossa
Objectives: The current standard of care for patients with metastatic prostate cancer (mPCa) at diagnosis is androgen deprivation therapy (ADT) with or without anti-androgen and chemotherapy. The aim of this study was to define the role of a local radiotherapy (RT) treatment in the mPCa setting. Methods: We retrospectively reviewed data of patients with PCa and bone oligometastases at diagnosis treated in our institution with ADT followed by cytoreductive prostate-RT with or without RT on metastases...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/29224692/the-contribution-of-musculoskeletal-disorders-in-multimorbidity-implications-for-practice-and-policy
#19
REVIEW
Stephen J Duffield, Benjamin M Ellis, Nicola Goodson, Karen Walker-Bone, Philip G Conaghan, Tom Margham, Tracey Loftis
People frequently live for many years with multiple chronic conditions (multimorbidity) that impair health outcomes and are expensive to manage. Multimorbidity has been shown to reduce quality of life and increase mortality. People with multimorbidity also rely more heavily on health and care services and have poorer work outcomes. Musculoskeletal disorders (MSDs) are ubiquitous in multimorbidity because of their high prevalence, shared risk factors, and shared pathogenic processes amongst other long-term conditions...
April 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29224108/negative-impact-of-testosterone-deficiency-and-5%C3%AE-reductase-inhibitors-therapy-on-metabolic-and-sexual-function-in-men
#20
Abdulmaged M Traish
Androgens are steroid hormones with pleotropic and diverse biochemical and physiological functions, and androgen deficiency exerts a negative impact on human health. Testosterone (T) either directly or via its transformation into the more potent metabolite 5α-dihydrotestosterone (5α-DHT) or via aromatization into estradiol (E2) modulates important biochemical signaling pathways of human physiology and plays a critical role in the growth and/or maintenance of functions in a host of tissues and organs. T and 5α-DHT play an important role in regulating physiology of the muscle, adipose tissue, liver, bone, and central nervous system, as well as reproductive and sexual functions...
2017: Advances in Experimental Medicine and Biology
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