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https://www.readbyqxmd.com/read/28331806/myroides-bacteremia-a-case-report-and-concise-review
#1
Rudra Beharrysingh
Myroides species are bacteria found commonly in environmental sources, such as water and soil. Despite this, they are historically uncommon pathogens, tending to affect primarily immunocompromised hosts. Based on a review of the current cases listed in the U.S. National Institutes of Health's National Library of Medicine (Table 1), there have been 48 reported cases of infection to date, one third of which have been reported in only the last seven years. This report outlines a case of bacteremia caused by Myroides species occurring in a diabetic male on chemotherapy for Merkel cell cancer...
2017: IDCases
https://www.readbyqxmd.com/read/28331139/arthroscopic-removal-and-tendon-repair-for-refractory-rotator-cuff-calcific-tendinitis-of-the-shoulder
#2
Hiroshi Hashiguchi, Satoshi Iwashita, Atsushi Okubo, Shinro Takai
BACKGROUND: The purpose of this study was to evaluate clinical and radiological outcomes of arthroscopic treatment for refractory rotator cuff calcific tendinitis of the shoulder. METHODS: Subjects were 37 patients (35 women and 2 men; mean age, 47.8 years; age range 34-61 years) who had undergone arthroscopic treatment for calcific tendinitis of the shoulder. Despite sufficient nonsurgical treatments, all patients had residual calcific deposit with persistent or recurrent pain...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/28330088/metals-induced-functional-stress-in-sulphate-reducing-thermophiles
#3
Ali Hussain, Javed Iqbal Qazi
All toxic metals have been known to inhibit different activities of sulphate-reducing bacteria (SRB) at different concentrations. The present study delineates functional responses of two thermophilic SRB species (Desulfotomaculum reducens-HA1 and Desulfotomaculum hydrothermale-HA2) to toxic metals. Bacterial activity was assessed in terms of sulphate reduction and metal precipitation employing four concentrations (1, 5, 10 and 15 ppm) of three dissolved toxic metals (Cu, Cr and Ni) independently. Both sulphidogenic bacterial species showed results in a very narrow range of fluctuations...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327634/scleraxis-is-required-for-maturation-of-tissue-domains-for-proper-integration-of-the-musculoskeletal-system
#4
Yuki Yoshimoto, Aki Takimoto, Hitomi Watanabe, Yuji Hiraki, Gen Kondoh, Chisa Shukunami
Scleraxis (Scx) is a basic helix-loop-helix transcription factor that is expressed persistently in tendons/ligaments, but transiently in entheseal cartilage. In this study, we generated a novel Scx(Cre) knock-in (KI) allele, by in-frame replacement of most of Scx exon 1 with Cre recombinase (Cre), to drive Cre expression using Scx promoter and to inactivate the endogenous Scx. Reflecting the intensity and duration of endogenous expression, Cre-mediated excision occurs in tendinous and ligamentous tissues persistently expressing Scx...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28324130/the-oblique-popliteal-ligament-an-anatomic-and-mri-investigation
#5
Mandy Hedderwick, Mark D Stringer, Liam McRedmond, Grant R Meikle, Stephanie J Woodley
PURPOSE: Despite being the largest ligament on the posterior aspect of the knee, relatively little is known about the normal morphology of the oblique popliteal ligament (OPL). The aim of this study was to investigate the detailed anatomy of the OPL in cadavers and healthy volunteers. METHODS: The posterior knee was investigated in 25 cadaver lower limbs (mean age 76 ± 9.5 years; 7 men) by dissection, histology, and serial plastination and in 14 healthy individuals (mean age 23 ± 3...
March 21, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28323176/fascicles-and-the-interfascicular-matrix-show-decreased-fatigue-life-with-ageing-in-energy-storing-tendons
#6
Chavaunne T Thorpe, Graham P Riley, Helen L Birch, Peter D Clegg, Hazel Rc Screen
Tendon is composed of rope-like fascicles bound together by interfascicular matrix (IFM). The IFM is critical for the function of energy storing tendons, facilitating sliding between fascicles to allow these tendons to cyclically stretch and recoil. This capacity is required to a lesser degree in positional tendons. We have previously demonstrated that both fascicles and IFM in energy storing tendons have superior fatigue resistance compared with positional tendons, but the effect of ageing on the fatigue properties of these different tendon subunits has not been determined...
March 16, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28321422/autologous-tenocyte-injection-for-the-treatment-of-chronic-recalcitrant-gluteal-tendinopathy-a-prospective-pilot-study
#7
Thomas A Bucher, Jay R Ebert, Anne Smith, William Breidahl, Michael Fallon, Tao Wang, Ming-Hao Zheng, Gregory C Janes
BACKGROUND: Gluteal tendinopathy is a common cause of lateral hip pain, and existing conservative treatment modalities demonstrate high symptom recurrence rates. Autologous tenocyte injection (ATI) is a promising cell therapy that may be useful for the treatment of gluteal tendinopathy. PURPOSE: To investigate the safety and effectiveness of ATI, specifically in patients with chronic recalcitrant gluteal tendinopathy. STUDY DESIGN: Case series; Level of evidence, 4...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321341/singleton-merten-syndrome-a-rare-cause-of-early-onset-aortic-stenosis
#8
Harshavardhan Ghadiam, Sudhir Mungee
Singleton Merten syndrome (SMS) is a rare autosomal dominant genetic disorder with variable expression. Its characteristic features include abnormal aortic calcification, abnormal ossification of extremities, and dental anomalies. We present a young man with dyspnea who was noted to have aortic stenosis in the background of glaucoma, psoriasis, dental anomalies, hand and foot deformities, Achilles tendinitis, osteopenia, and nephrolithiasis. The conglomeration of features led to the diagnosis of SMS. His mother had a very similar phenotype...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28316825/bis-%C3%AE-2-n-methyl-n-phenyl-dithio-carbamato-%C3%AE%C2%BA-3-s-s-s-%C3%AE%C2%BA-3-s-s-s-bis-n-methyl-n-phenyl-dithio-carbamato-%C3%AE%C2%BA-2-s-s-cadmium-crystal-structure-and-hirshfeld-surface-analysis
#9
Siti Aisyah Nabilah Suwardi, See Mun Lee, Kong Mun Lo, Mukesh M Jotani, Edward R T Tiekink
The title compound, [Cd2(C8H8NS2)4], is a centrosymmetric dimer with both chelating and μ2-tridentate di-thio-carbamate ligands. The resulting S5 donor set defines a Cd(II) coordination geometry inter-mediate between square-pyramidal and trigonal-bipyramidal, but tending towards the former. The packing features C-H⋯S and C-H⋯π inter-actions, which generate a three-dimensional network. The influence of these inter-actions, along with intra-dimer π-π inter-actions between chelate rings, has been investigated by an analysis of the Hirshfeld surface...
March 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28316451/joint-estimation-of-multiple-high-dimensional-precision-matrices
#10
T Tony Cai, Hongzhe Li, Weidong Liu, Jichun Xie
Motivated by analysis of gene expression data measured in different tissues or disease states, we consider joint estimation of multiple precision matrices to effectively utilize the partially shared graphical structures of the corresponding graphs. The procedure is based on a weighted constrained ℓ∞/ℓ1 minimization, which can be effectively implemented by a second-order cone programming. Compared to separate estimation methods, the proposed joint estimation method leads to estimators converging to the true precision matrices faster...
April 2016: Statistica Sinica
https://www.readbyqxmd.com/read/28303297/acute-calcific-tendinopathy-of-the-popliteus-tendon-a-rare-case-diagnosed-using-a-multimodality-imaging-approach-and-treated-conservatively
#11
Cédric Doucet, Akshat Gotra, Santhosh Mauvva Venkatesh Reddy, Mathieu Boily
Acute calcific tendinopathy of the popliteus tendon is a rare medical entity associated with significant patient discomfort. We present the case of a previously healthy 48-year-old female who presented to the emergency department with acute onset of left knee pain. Initial radiographs revealed calcifications within the posterolateral compartment of the knee. Ultrasound imaging demonstrated a swollen and hypoechoic popliteus tendon with an increased color Doppler signal at the periphery of the tendon as well as calcification in the tendon and adjacent soft tissues...
March 16, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28301610/the-effects-of-substance-p-and-acetylcholine-on-human-tenocyte-proliferation-converge-mechanistically-via-tgf-%C3%AE-1
#12
Gloria Fong, Ludvig J Backman, Håkan Alfredson, Alex Scott, Patrik Danielson
Previous in vitro studies on human tendon cells (tenocytes) have demonstrated that the exogenous administration of substance P (SP) and acetylcholine (ACh) independently result in tenocyte proliferation, which is a prominent feature of tendinosis. Interestingly, the possible link between SP and ACh has not yet been explored in human tenocytes. Recent studies in other cell types demonstrate that both SP and ACh independently upregulate TGF-β1 expression via their respective receptors, the neurokinin 1 receptor (NK-1R) and muscarinic ACh receptors (mAChRs)...
2017: PloS One
https://www.readbyqxmd.com/read/28301205/intratendon-delivery-of-leukocyte-poor-platelet-rich-plasma-improves-healing-compared-with-leukocyte-rich-platelet-rich-plasma-in-a-rabbit-achilles-tendinopathy-model
#13
Ruijian Yan, Yanjia Gu, Jisheng Ran, Yejun Hu, Zefeng Zheng, Mengfeng Zeng, Boonchin Heng, Xiao Chen, Zi Yin, Weishan Chen, Weiliang Shen, Hongwei Ouyang
BACKGROUND: Chronic tendinopathy is a commonly occurring clinical problem that affects both athletes and inactive middle-aged patients. Although some studies have shown that different platelet-rich plasma (PRP) preparations could exert various therapeutic effects in vitro, the role of leukocytes in PRP has not yet been defined under tendinopathy conditions in vivo. PURPOSE: This study compared the effects of the intratendon delivery of leukocyte-poor PRP (Lp-PRP) versus leukocyte-rich PRP (Lr-PRP) in a rabbit chronic tendinopathy model in vivo...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28295634/the-utility-of-salivary-testosterone-and-cortisol-concentration-measures-for-assessing-the-stress-responses-of-junior-athletes-during-a-sporting-competition
#14
Blair T Crewther, Zbigniew Obmiński, Joanna Orysiak, Emad A S Al-Dujaili
BACKGROUND: This study examined the utility of salivary testosterone (T) and cortisol (C) concentration measures for assessing the acute stress responses of junior athletes during a sporting competition. METHODS: Paired capillary blood and saliva samples were taken from 71 junior athletes (45 males, 26 females) before and after a simulated Olympic weightlifting competition. The concentration measures of salivary T and C were referenced against blood total T (TT) and C (TC) concentrations...
March 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28294565/ankle-pathologies-in-patients-with-inflammatory-rheumatic-diseases-a-clinical-and-ultrasonographic-study
#15
Halil Harman, İbrahim Tekeoğlu
AIM: We determined ankle pathologies in patients with different types of inflammatory rheumatic diseases using high-resolution ultrasonographic (US) images, and compared the findings among the different patient groups. METHODS: The study included 142 randomly selected inflammatory rheumatic disease patients with clinically swollen or painful ankle joints; 69 patients had rheumatoid arthritis (RA), 58 had spondyloarthropathies (SpA) and 15 had gout. Ankle assessment on US included all of the important anatomical structures...
March 12, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28294413/acute-effect-of-running-exercise-on-physiological-achilles-tendon-blood-flow
#16
Lucie Risch, Michael Cassel, Frank Mayer
Sonographically detectable intratendinous blood flow (IBF) is found in 50-88% of Achilles tendinopathy patients as well as in up to 35% of asymptomatic Achilles tendons (AT). Although IBF is frequently associated with tendon pathology, it may also represent a physiological regulation e.g. due to increased blood flow in response to exercise. Therefore, this study aimed to investigate the acute effects of a standardized running exercise protocol on IBF assessed with Doppler ultrasound (DU) "Advanced dynamic flow" in healthy ATs...
March 13, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28293194/quantification-of-internal-stress-strain-fields-in-human-tendon-unraveling-the-mechanisms-that-underlie-regional-tendon-adaptations-and-mal-adaptations-to-mechanical-loading-and-the-effectiveness-of-therapeutic-eccentric-exercise
#17
REVIEW
Constantinos N Maganaris, Panagiotis Chatzistergos, Neil D Reeves, Marco V Narici
By virtue of their anatomical location between muscles and bones, tendons make it possible to transform contractile force to joint rotation and locomotion. However, tendons do not behave as rigid links, but exhibit viscoelastic tensile properties, thereby affecting the length and contractile force in the in-series muscle, but also storing and releasing elastic stain energy as some tendons are stretched and recoiled in a cyclic manner during locomotion. In the late 90s, advancements were made in the application of ultrasound scanning that allowed quantifying the tensile deformability and mechanical properties of human tendons in vivo...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28292207/adherence-and-recursive-perception-among-young-adults-with-cystic-fibrosis
#18
D August Oddleifson, Gregory S Sawicki
Adherence to prescribed treatment is a pressing issue for adolescents and young adults with cystic fibrosis (CF). This paper presents two narratives from the thematic analysis of unstructured interviews with 14 adolescents, young adults, and older adults living with CF. Through a new identity-based framework termed recursive perception that draws focus on how an individual perceives how others view them, it explores the social context of adherence and self-care among young adults with CF. It demonstrates that an individual's understanding of self and desire to maintain a certain image for peers can be deeply embedded in adherence and self-care patterns, leading individuals to feel they need to choose between tending to their health needs and living their lives...
April 2017: Anthropology & Medicine
https://www.readbyqxmd.com/read/28291954/therapeutic-mechanisms-of-human-adipose-derived-mesenchymal-stem-cells-in-a-rat-tendon-injury-model
#19
Sang Yoon Lee, Bomi Kwon, Kyoungbun Lee, Young Hoon Son, Sun G Chung
BACKGROUND: Although survival of transplanted stem cells in vivo and differentiation of stem cells into tenocytes in vitro have been reported, there have been no in vivo studies demonstrating that mesenchymal stem cells (MSCs) could secrete their own proteins as differentiated tenogenic cells. Purpose/Hypothesis: Using a xenogeneic MSC transplantation model, we aimed to investigate whether MSCs could differentiate into the tenogenic lineage and secrete their own proteins. The hypothesis was that human MSCs would differentiate into the human tenogenic lineage and the cells would be able to secrete human-specific proteins in a rat tendon injury model...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28289916/predicting-tenocyte-expression-profiles-and-average-molecular-concentrations-in-achilles-tendon-ecm-from-tissue-strain-and-fiber-damage
#20
Arash Mehdizadeh, Bruce S Gardiner, Michael Lavagnino, David W Smith
In this study, we propose a method for quantitative prediction of changes in concentrations of a number of key signaling, structural and effector molecules within the extracellular matrix of tendon. To achieve this, we introduce the notion of elementary cell responses (ECRs). An ECR defines a normal reference secretion profile of a molecule by a tenocyte in response to the tenocyte's local strain. ECRs are then coupled with a model for mechanical damage of tendon collagen fibers at different straining conditions of tendon and then scaled up to the tendon tissue level for comparison with experimental observations...
March 13, 2017: Biomechanics and Modeling in Mechanobiology
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