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https://www.readbyqxmd.com/read/29330780/safety-in-mixed-martial-arts-a-7-year-review-of-cancelled-mma-bouts-in-calgary-alberta-during-the-pre-bout-medical-examination-period
#1
Gwynn Curran-Sills
BACKGROUND: Presently, there is no literature that examines the reasons for the cancellation of amateur or professional mixed martial arts (MMA) bouts. The purpose of this study was to review the circumstances that lead to the cancellation of MMA bouts by Calgary ringside physicians during the pre-bout examination period and to identify any emerging patterns that may guide the regulatoin of this sport. METHODS: The case-series  was constructed from the Calgary Combative Sports Commission pre-bout examination records and the medical records submitted by each athlete from January 2010 to December 2016...
January 12, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29329688/motorizing-and-optimizing-ultrasound-strain-elastography-for-detection-of-intrauterine-growth-restriction-pregnancies
#2
Shier Nee Saw, Jess Yi Ru Low, Citra Nurfarah Zaini Mattar, Arijit Biswas, Lujie Chen, Choon Hwai Yap
Intrauterine growth restriction is a prevalent disease in pregnancy in which placental insufficiency leads to 5 to 10 times higher mortality and lifelong morbidities. The current detection rate is poor, and recently, ultrasound strain elastography (USEL) was proposed as a new diagnostic technique. Currently, placental USEL uses maternal subcutaneous fat as the reference layer, but this is not ideal as fat tissue stiffness can vary widely between subjects. Current USEL also uses manual palpation, and under different compression depths and rates, viscoelastic tissues such as placenta can yield different stiffness results...
January 9, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29327789/imaging-macrophage-distribution-and-density-in-mammary-tumors-and-lung-metastases-using-fluorine-19-mri-cell-tracking
#3
Ashley V Makela, Paula J Foster
PURPOSE: The presence of tumor-associated macrophages (TAMs) correlates with breast cancer progression and metastatic spread. Metastasis-associated macrophages (MAMs) are also recruited to distant sites, where they support metastatic growth. In this study, we demonstrate that in vivo fluorine-19 (19 F)-based MRI cell tracking can evaluate the density and distribution of macrophages within murine breast cancer tumors and associated metastases. METHODS: Three murine breast cancer cell lines with different metastatic potentials (4T1, 168FARN, and 67NR) were implanted into the mammary fat pad in mice...
January 12, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29327032/three-dimensional-volumetric-analysis-of-3-fat-processing-techniques-for-facial-fat-grafting-a-randomized-clinical-trial
#4
Rongwei Wu, Xiaonan Yang, Xiaolei Jin, Haibin Lu, Zhenhua Jia, Binghang Li, Haiyue Jiang, Zuoliang Qi
Importance: Autologous fat grafting has revolutionized the field of facial soft-tissue augmentation, despite a lack of standardization. Objective data are needed to arrive at consensus regarding the best technique for optimal volume retention. Objective: To compare 3 fat-processing techniques with 3-dimensional (3-D) technology to explore the optimal fat-processing technique for improving the volume retention of grafted fat. Design, Setting, and Participants: From September 2015 to December 2016, patients with facial asymmetry were treated by initial facial fat grafting at the Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College...
January 11, 2018: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/29324877/impact-of-extra-articular-pathologies-on-groin-pain-an-arthroscopic-evaluation
#5
Mitsunori Kaya
PURPOSE: For patients who have anterior hip pain evaluated by Patrick's test and tenderness at Scarpa's triangle, we perform periarticular debridement based on the hypothesis that extra-articular pathologies are responsible for the hip pain. The purpose of this study was to categorize the endoscopic extra-articular findings and to evaluate the clinical significance of periarticular pathologies in anterior hip pain. METHODS: Arthroscopic findings of 77 patients who underwent periarthritic debridement were evaluated...
2018: PloS One
https://www.readbyqxmd.com/read/29320705/an-adipose-tissue-atlas-an-image-guided-identification-of-human-like-bat-and-beige-depots-in-rodents
#6
Fang Zhang, Guiyang Hao, Mengle Shao, Kien Nham, Yu An, Qiong Wang, Yi Zhu, Christine M Kusminski, Gedaa Hassan, Rana K Gupta, Qiwei Zhai, Xiankai Sun, Philipp E Scherer, Orhan K Oz
[18F]Fluorodeoxyglucose-PET/CT (18F-FDG-PET/CT) imaging has been invaluable for visualizing metabolically active adipose tissues in humans with potential anti-diabetic and anti-obesity effects. To explore whether mice display human-like fat depots in anatomically comparable regions, we mapped fat depots using glucose or fatty acid imaging tracers, such as 18F-FDG through PET/CT or [123/125I]-β-methyl-p-iodophenyl-pentadecanoic acid with SPECT/CT imaging, to analogous depots in mice. Using this type of image analysis with both probes, we define a large number of additional areas of high metabolic activity corresponding to novel fat pads...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29311633/traf2-in-osteotropic-breast-cancer-cells-enhances-skeletal-tumour-growth-and-promotes-osteolysis
#7
Prabha Peramuhendige, Silvia Marino, Ryan T Bishop, Daniëlle de Ridder, Asim Khogeer, Isabella Baldini, Mattia Capulli, Nadia Rucci, Aymen I Idris
NFκB plays an important role in inflammation and bone remodelling. Tumour necrosis factor receptor associated factor 2 (TRAF2), a key component of NFκB signalling, has been identified as an oncogene, but its role in the regulation of breast cancer osteolytic metastasis remains unknown. Here, we report that stable overexpression of TRAF2 in parental and osteotropic sub-clones of human MDA-MB-231 (MDA-231) breast cancer cells increased cell growth and motility in vitro, whereas TRAF2 knockdown was inhibitory...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29309075/niga-ichigoside-f1-ameliorates-high-fat-diet-induced-hepatic-steatosis-in-male-mice-by-nrf2-activation
#8
Shu-Fang Xia, Jing Shao, Shu-Ying Zhao, Yu-Yu Qiu, Li-Ping Teng, Wei Huang, Shan-Shan Wang, Xiang-Rong Cheng, Yu-Yu Jiang
Hepatic lipid accumulation and oxidative stress (OS) lead to non-alcoholic fatty liver disease (NAFLD). Thus, we hypothesized that antihyperlipidemic and antioxidant activities of niga-ichigoside F1 (NI) would ameliorate events leading to NAFLD. Lanbuzheng (Geum japonicum Thunb. var. chinense), a type of wild vegetable found in Southwest China, was used to extract NI. Male C57BL/6J mice were fed a standard diet (Con) or a high-fat diet (HFD) (denoted as diet) with or without 40 mg kg-1 NI (defined as treatment) for 12 weeks...
January 8, 2018: Food & Function
https://www.readbyqxmd.com/read/29299475/total-knee-arthroplasty-fibrosis-following-arthroscopic-intervention
#9
Jessica L Churchill, Nipun Sodhi, Anton Khlopas, Nicolas S Piuzzi, Sarah E Dalton, Morad Chughtai, Assem A Sultan, Steven Jones, Nick Williams, Peter M Bonutti, Michael A Mont
Background: Although arthroscopy is generally considered to be a relatively benign procedure with limited trauma to periarticular soft tissues, post-arthroscopic bleeding as well as osmolality differences between the normal saline used to irrigate and the native synovial fluid (282 vs. 420 mOs) can lead to capsular reactions. Therefore, the purpose of this study was to evaluate whether capsular reaction occurred after knee arthroscopy, by comparing a matched cohort of patients who either did or did not undergo prior arthroscopic surgery...
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29295860/reduced-ppar%C3%AE-2-expression-in-adipose-tissue-of-male-rat-offspring-from-obese-dams-is-associated-with-epigenetic-modifications
#10
Simon Lecoutre, Charlène Pourpe, Laura Butruille, Lucie Marousez, Christine Laborie, Céline Guinez, Jean Lesage, Didier Vieau, Jérôme Eeckhoute, Anne Gabory, Frédérik Oger, Delphine Eberlé, Christophe Breton
According to the Developmental Origin of Health and Disease (DOHaD) concept, maternal obesity and accelerated growth in neonates program obesity later in life. White adipose tissue (WAT) has been the focus of developmental programming events, although underlying mechanisms remain elusive. In rodents, WAT development primarily occurs during lactation. We previously reported that adult rat offspring from dams fed a high-fat (HF) diet exhibited fat accumulation and decreased peroxisome proliferator-activated receptor gamma (PPARγ) mRNA levels in WAT...
January 2, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29295664/effect-of-different-combination-of-maternal-and-postnatal-diet-on-adipose-tissue-morphology-in-male-rat-offspring
#11
Darija Šnajder, Željka Perić Kačarević, Anđela Grgić, Nikola Bijelić, Matija Fenrich, Tatjana Belovari, Radivoje Radić
PURPOSE: Adipose tissue expansion can occur through several different ways and, under certain conditions, can be connected with chronic inflammation. TNF-α is one of the important cytokines involved in this process. Prolonged inflammation in obesity can lead to obesity-related insulin resistance and tissue dysfunction. The aim of our study was to investigate how different combination of maternal and postnatal diet affects offspring adipose tissue morphology and adipose tissue TNF-α expression...
January 2, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29288705/massa-adiposa-ligamenti-falciformis-or-anterior-abdominal-fat-pad-its-dimension-and-relation-to-body-weight
#12
Friedemann Strobel, Eckart Schirg, Martin Schlaud, Thomas Tschernig
The anterior abdominal fat pad is associated with the falciform ligament in the upper middle/right abdomen and is frequently seen there in diagnostic imaging. It varies greatly in size and has often been described as an incidental finding in adults and has hitherto rarely been regarded as being illness-relevant. The aim of this study has been to assess whether the dimension of the corpus adiposum may be associated with body mass index. Ultrasound findings of 26 patients from birth until adolescence were analyzed for this purpose...
December 27, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29286302/microrna-27b-depletion-enhances-endotrophic-and-intravascular-lipid-accumulation-and-induces-adipocyte-hyperplasia-in-zebrafish
#13
Chia-Chun Hsu, Chi-Yu Lai, Chiu-Ya Lin, Kun-Yun Yeh, Guor Mour Her
miR-27b has emerged as a regulatory hub in cholesterol and lipid metabolism, and as a potential therapeutic target for treating atherosclerosis and obesity. However, the impact of miR-27b on lipid levels in vivo remains to be determined. Zebrafish lipids are normally stored as triacylglycerols (TGs) and their main storage sites are visceral, intramuscular, and subcutaneous lipid depots, and not blood vessels and liver. In this study, we applied microRNA-sponge (miR-SP) technology and generated zebrafish expressing transgenic miR-27b-SP (C27bSPs), which disrupted endogenous miR-27b activity and induced intravascular lipid accumulation (hyperlipidemia) and the early onset of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH)...
December 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29283514/an-animal-model-of-local-breast-cancer-recurrence-in-the-setting-of-autologous-fat-grafting-for-breast-reconstruction
#14
Wakako Tsuji, Jolene E Valentin, Kacey G Marra, Albert D Donnenberg, Vera S Donnenberg, J Peter Rubin
Autologous fat grafting after breast cancer surgery is commonly performed, but concerns about oncologic risk remain. To model the interaction between fat grafting and breast cancer cells, two approaches were employed. In the first approach, graded numbers of viable MDA-MB-231 or BT-474 cells were admixed directly into human fat grafts and injected subcutaneously into immune-deficient mice to determine if the healing graft is a supportive environment for the tumor. In the second approach, graded doses of MDA-MB-231 cells were suspended in Matrigel and injected into the mammary fat pads of mice...
January 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29283192/functional-and-phenotypical-analysis-of-il-6-secreting-cd4-t-cells-in-human-adipose-tissue
#15
Anja J de Jong, Sabrina Pollastro, Joanneke C Kwekkeboom, Stefan N Andersen, Annemarie L Dorjée, Aleida M Bakker, Fawaz Alzaid, Antoine Soprani, Rob G H H Nelissen, Jan B Mullers, Nicolas Venteclef, Niek de Vries, Margreet Kloppenburg, René E M Toes, Andreea Ioan-Facsinay
Emerging evidence indicates that a dynamic interplay between the immune system and adipocytes contributes to the disturbed homeostasis in adipose tissue of obese subjects. Recently, we observed IL-6-secretion by CD4+ T cells from the stromal vascular fraction (SVF) of the infrapatellar fat pad (IFP) of knee osteoarthritis patients directly ex vivo. Here we show that human IL-6+ CD4+ T cells from SVF display a more activated phenotype than the IL-6- T cells, as evidenced by the expression of the activation marker CD69...
December 28, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/29279183/increased-fibrosis-a-novel-means-by-which-gh-influences-white-adipose-tissue-function
#16
Lara A Householder, Ross Comisford, Silvana Duran-Ortiz, Kevin Lee, Katie Troike, Cody Wilson, Adam Jara, Mitchell Harberson, Edward O List, John J Kopchick, Darlene E Berryman
OBJECTIVE: White adipose tissue (WAT) fibrosis - the buildup of extracellular matrix (ECM) proteins, primarily collagen - is now a recognized hallmark of tissue dysfunction and is increased with obesity and lipodystrophy. While growth hormone (GH) is known to increase collagen in several tissues, no previous research has addressed its effect on ECM in WAT. Thus, the purpose of this study is to determine if GH influences WAT fibrosis. DESIGN: This study examined WAT from four distinct strains of GH-altered mice (bGH and GHA transgenic mice as well as two tissue specific GH receptor gene disrupted lines, fat growth hormone receptor knockout or FaGHRKO and liver growth hormone receptor knockout or LiGHRKO mice)...
December 20, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29250706/acid-induced-experimental-knee-pain-and-hyperalgesia-in-healthy-humans
#17
T Asaki, Kelun Wang, Y Luo, T Arendt-Nielsen, T Graven-Nielsen, L Arendt-Nielsen
Inflammation and the related acidity in peri-articular structures may be involved in pain generation and hyperalgesia in knee osteoarthritis. This study investigated pain and associated hyperalgesia provoked by infusion of acidic saline into the infrapatellar fat pad. Twenty-eight subjects participated in two sessions in which acidic saline (AS, pH 5) or neutral saline (NS, pH 7.4) were infused into the infrapatellar fat pad for 15 min. Pain intensity, pain area, mechanical and thermal sensitivity, and maximal voluntary knee extension force were recorded...
December 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29248462/fibroblasts-promote-inflammation-and-pain-via-interleukin-1%C3%AE-induction-of-the-monocyte-chemoattractant-ccl2
#18
Hannah Louise Paish, Nicolas Stewart Kalson, Graham Robert Smith, Alicia Del Carpio Pons, Thomas Edward Baldock, Nicholas Smith, Katarzyna Swist-Szulik, David John Weir, Michelle Bardgett, David John Deehan, Derek Austin Mann, Lee Anthony Borthwick
Fibroblasts persist within fibrotic scar tissue and exhibit considerable phenotypic and functional plasticity. Here, we hypothesized that scar-associated fibroblasts may be a source of stress-induced inflammatory exacerbations and pain. To test this idea we used a human model of surgery-induced fibrosis, total knee arthroplasty (TKA). Using a combination of tissue protein expression profiling and bioinformatics we discovered that many months following TKA the fibrotic joint exists in a state of unresolved chronic inflammation...
December 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29246650/peg-hydrogel-containing-calcium-releasing-particles-and-mesenchymal-stromal-cells-promote-vessel-maturation
#19
Claudia Navarro-Requena, Jessica D Weaver, Amy Y Clark, Douglas A Clift, Soledad Pérez-Amodio, Óscar Castaño, Dennis W Zhou, Andrés J García, Elisabeth Engel
The use of human mesenchymal stromal cells (hMSC) for treating diseased tissues with poor vascularization has received significant attention, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have also been suggested as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. In this study, calcium-releasing particles and hMSC were combined within a hydrogel to examine their vasculogenic potential in vitro and in vivo...
December 12, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29244224/osteochondral-repair-using-an-acellular-dermal-matrix-pilot-in-vivo-study-in-a-rabbit-osteochondral-defect-model
#20
Ken Ye, Kathy Traianedes, Shalley A Robins, Peter F M Choong, Damian E Myers
The aim of this pilot project was to introduce a novel use of acellular dermal matrix (ADM) in combination with infrapatellar fat pad mesenchymal stromal cells (IPFP-MSCs) to effect repair in a rabbit osteochondral defect model. ADM, in a range of surgical procedures, has been shown to promote remodelling of tissue at the site of implantation. Rabbit-derived ADM (rabADM) was prepared from the skin of donor rabbits. Autologous IPFP-MSCs were obtained at the time of knee surgery. Osteochondral defects (4mm cartilage outer/2mm central bone defect) were drilled into distal femoral condyles of 12 New Zealand White rabbits...
December 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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