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https://www.readbyqxmd.com/read/29349032/revision-acromioclavicular-coracoclavicular-reconstruction-use-of-precontoured-button-and-2-allografts
#1
Daniel B Haber, Robert C Spang, George Sanchez, Anthony Sanchez, Márcio B Ferrari, Matthew T Provencher
Injuries to the acromioclavicular (AC) joint are common, particularly in the young and active population. Approximately 9% of all shoulder girdle injuries involve the AC joint, and AC joint dislocations represent approximately 8% of all joint dislocations throughout the body. AC joint injuries are graded as type I through type VI according to the Rockwood classification. Type I and II injuries are typically treated nonoperatively, whereas type IV, V, and VI injuries are most often treated surgically. A variety of surgical techniques have been described, including anatomic and nonanatomic reconstruction...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29348435/macrophage-sensing-of-single-walled-carbon-nanotubes-via-toll-like-receptors
#2
Sourav P Mukherjee, Olesja Bondarenko, Pekka Kohonen, Fernando T Andón, Táňa Brzicová, Isabel Gessner, Sanjay Mathur, Massimo Bottini, Paolo Calligari, Lorenzo Stella, Elena Kisin, Anna Shvedova, Reija Autio, Heli Salminen-Mankonen, Riitta Lahesmaa, Bengt Fadeel
Carbon-based nanomaterials including carbon nanotubes (CNTs) have been shown to trigger inflammation. However, how these materials are 'sensed' by immune cells is not known. Here we compared the effects of two carbon-based nanomaterials, single-walled CNTs (SWCNTs) and graphene oxide (GO), on primary human monocyte-derived macrophages. Genome-wide transcriptomics assessment was performed at sub-cytotoxic doses. Pathway analysis of the microarray data revealed pronounced effects on chemokine-encoding genes in macrophages exposed to SWCNTs, but not in response to GO, and these results were validated by multiplex array-based cytokine and chemokine profiling...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346383/seasonally-timed-treatment-programs-for-ascaris-lumbricoides-to-increase-impact-an-investigation-using-mathematical-models
#3
Emma L Davis, Leon Danon, Joaquín M Prada, Sharmini A Gunawardena, James E Truscott, Johnny Vlaminck, Roy M Anderson, Bruno Levecke, Eric R Morgan, T Deirdre Hollingsworth
There is clear empirical evidence that environmental conditions can influence Ascaris spp. free-living stage development and host reinfection, but the impact of these differences on human infections, and interventions to control them, is variable. A new model framework reflecting four key stages of the A. lumbricoides life cycle, incorporating the effects of rainfall and temperature, is used to describe the level of infection in the human population alongside the environmental egg dynamics. Using data from South Korea and Nigeria, we conclude that settings with extreme fluctuations in rainfall or temperature could exhibit strong seasonal transmission patterns that may be partially masked by the longevity of A...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346313/a-comparison-of-the-chemical-composition-in-vitro-bioaccessibility-and-antioxidant-activity-of-phenolic-compounds-from-rice-bran-and-its-dietary-fibres
#4
Guanghe Zhao, Ruifen Zhang, Lihong Dong, Fei Huang, Lei Liu, Yuanyuan Deng, Yongxuan Ma, Yan Zhang, Zhencheng Wei, Juan Xiao, Mingwei Zhang
The composition, in vitro bioaccessibility and antioxidant activities of the phenolic compounds in defatted rice bran (DRB) and its soluble and insoluble dietary fibres were systematically evaluated in this study. The total phenolic content of insoluble dietary fibre from DRB (IDFDRB) was much higher than that of the soluble dietary fibre from DRB (SDFDRB) but was 10% lower than that of DRB. Bound phenolics accounted for more than 90% of the total phenolics in IDFDRB, whereas they accounted for 34.2% and 40...
January 18, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29345144/pilot-randomized-controlled-trial-of-the-go-game-intervention-on-cognitive-function
#5
Ai Iizuka, Hiroyuki Suzuki, Susumu Ogawa, Kimi Estela Kobayashi-Cuya, Momoko Kobayashi, Toru Takebayashi, Yoshinori Fujiwara
This study investigated the effects of an intervention using the game "GO" on cognitive function in nursing home residents and evaluated the acquisition of GO according to each stage of dementia. Participants were randomly assigned to either the GO intervention group or a control group, and the intervention was performed once weekly for 15 weeks. Cognitive tests were conducted before and after intervention, and 17 participants were included in the final analysis. Analysis of covariance demonstrated that in the intervention group, the digit span total score significantly improved and the digit span backward score was maintained, whereas these scores decreased in the control group...
January 1, 2018: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/29343822/the-micals-are-a-family-of-f-actin-dismantling-oxidoreductases-conserved-from-drosophila-to-humans
#6
Heng Wu, Hunkar Gizem Yesilyurt, Jimok Yoon, Jonathan R Terman
Cellular form and function - and thus normal development and physiology - are specified via proteins that control the organization and dynamic properties of the actin cytoskeleton. Using the Drosophila model, we have recently identified an unusual actin regulatory enzyme, Mical, which is directly activated by F-actin to selectively post-translationally oxidize and destabilize filaments - regulating numerous cellular behaviors. Mical proteins are also present in mammals, but their actin regulatory properties, including comparisons among different family members, remain poorly defined...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339058/carboxylic-group-riched-graphene-oxide-based-disposable-electrochemical-immunosensor-for-cancer-biomarker-detection
#7
Sajid Rauf, Geetesh K Mishra, Jahanzaib Azhar, Rupesh K Mishra, K Yugender Goud, Muhammad Azhar Hayat Nawaz, Jean Louis Marty, Akhtar Hayat
In this work, we have developed for the first time a carboxylic group riched graphene oxide based disposable electrochemical immunosensor for cancer biomarker detection using methylene blue (MB). The developed immunosensor is highly sensitive for detection of biomarker Mucin1 (MUC1) in human serum samples. Development of this disposable electrochemical immunosensor was premeditated by applying specific monoclonal antibodies against MUC1. In this method, we explored highly conductive surface of carboxylic group (-COOH-) rich graphene oxide (GO) on screen-printed carbon electrodes (SPCE)...
January 12, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29334324/the-rite-of-passage-of-becoming-a-humanitarian-health-worker-experiences-of-retention-in-sweden
#8
Sara Albuquerque, Anneli Eriksson, Helle M Alvesson
BACKGROUND: Low retention of humanitarian workers poses constraints on humanitarian organisations' capacity to respond effectively to disasters. Research has focused on reasons for humanitarian workers leaving the sector, but little is known about the factors that can elucidate long-term commitment. OBJECTIVE: To understand what motivates and supports experienced humanitarian health workers to remain in the sector. METHODS: Semi-structured interviews were conducted with 10 experienced nurses who had been on at least three field missions with Médecins Sans Frontières Sweden...
2018: Global Health Action
https://www.readbyqxmd.com/read/29328940/first-trimester-serum-biomarkers-to-predict-gestational-diabetes-in-a-high-risk-cohort-striving-for-clinically-useful-thresholds
#9
Siobhan M Corcoran, Natalie Achamallah, John O' Loughlin, Philip Stafford, Pat Dicker, Fergal D Malone, Fionnuala Breathnach
OBJECTIVES: Screening and diagnosis of gestational diabetes (GDM) has been a source of controversy. The prevalence has increased in line with an obesity epidemic and a trend towards delayed child-bearing. Treatment of even modest glycaemic impairment in pregnancy has been shown to be beneficial in preventing its clinical sequalae. However the cumbersome nature and timing of the oral glucose tolerance test coupled with debate around universal versus risk factor based screening have been problematic...
January 1, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29322942/purulent-pericarditis-an-unusual-complication-of-pneumococcal-pneumonia-a-case-report
#10
Ghizlane Zoulati, Ramatou Yèya Maïga, Rachid Kerzaz, Ghita Yahyaoui, Mustapha Harandou, Mustapha Mahmoud
Purulent pericarditis has become rare since the advent of antibiotics. Among the involved germs, S. pneumoniae remains the most implicated pathogen to evoke in principle, especially that prescription of systematic antibiotics for any febrile condition can considerably mask the clinical picture. A 36-year-old pregnant woman was visiting the emergency department for dyspnea and flu-like syndrom that had been going on for a week. The chest X-ray showed a white lung on the left and the transthoracic ultrasound revealed a pericardial effusion, resulting in pericardial drainage and pleural puncture that allows the evacuation of a purulent fluid...
January 11, 2018: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29321645/mri-features-predictive-of-negative-surgical-margins-in-patients-with-her2-overexpressing-breast-cancer-undergoing-breast-conservation
#11
Brittany Z Dashevsky, Jung Hun Oh, Aditya P Apte, Blanca Bernard-Davila, Elizabeth A Morris, Joseph O Deasy, Elizabeth J Sutton
Here we develop a tool to predict resectability of HER2+ breast cancer at breast conservation surgery (BCS) utilizing features identified on preoperative breast MRI. We identified patients with HER2+ breast cancer who obtained pre-operative breast MRI and underwent BCS between 2002-2013. From the contoured tumor on pre-operative MRI, shape, histogram, and co-occurrence and size zone matrix texture features were extracted. In univariate analysis, Spearman's correlation coefficient (Rs) was used to assess the correlation between each image feature and an endpoint (surgical re-excision)...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321303/infection-and-replication-of-influenza-virus-at-the-ocular-surface
#12
Hannah M Creager, Amrita Kumar, Hui Zeng, Taronna R Maines, Terrence M Tumpey, Jessica A Belser
Though influenza viruses typically cause respiratory tract disease, some viruses, particularly those with an H7 hemagglutinin, have been isolated from the eyes of conjunctivitis cases. Previous work has shown that isolates of multiple subtypes from both ocular and respiratory infections are capable of replication in human ex vivo ocular tissues and corneal or conjunctival cell monolayers, leaving the determinants of ocular tropism unclear. Here, we evaluated the effect of several variables on tropism for ocular cells cultured in vitro and examined the potential effect of the tear film on viral infectivity...
January 10, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29321220/against-proportional-shortfall-as-a-priority-setting-principle
#13
Samuel Altmann
As the demand for healthcare rises, so does the need for priority setting in healthcare. In this paper, I consider a prominent priority-setting principle: proportional shortfall. My purpose is to argue that proportional shortfall, as a principle, should not be adopted. My key criticism is that proportional shortfall fails to consider past health.Proportional shortfall is justified as it supposedly balances concern for prospective health while still accounting for lifetime health, even though past health is deemed irrelevant...
January 10, 2018: Journal of Medical Ethics
https://www.readbyqxmd.com/read/29319278/the-use-of-minoxidil-in-the-treatment-of-male-and-female-androgenetic-alopecia-a-story-of-more-than-30-years
#14
Mauro Barbareschi
Even if minoxidil has been known for over 30 years as "hair growth stimulator" the precise mechanism of its action is not completely elucitated. Minoxidil shortens telogen, accelerates telogen-exogen phase and causes the premature entry of resting hair follicles into anagen phase. Moreover, minoxidil increases hair follicle size. A large part of hair treatment scientific literature confirms the efficacy of topically applied minoxidil in humans. In particular, patients treated with minoxidil showed a significant increase in "non vellus" hair count starting from baseline...
February 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29317998/new-and-emerging-therapies-for-acute-and-chronic-graft-versus-host-disease
#15
REVIEW
LaQuisa Hill, Amin Alousi, Partow Kebriaei, Rohtesh Mehta, Katayoun Rezvani, Elizabeth Shpall
Graft versus host disease (GVHD) remains a major cause of morbidity and mortality following allogeneic hematopoietic stem-cell transplantation (HSCT). Despite the use of prophylactic GVHD regimens, a significant proportion of transplant recipients will develop acute or chronic GVHD following HSCT. Corticosteroids are standard first-line therapy, but are only effective in roughly half of all cases with ~50% of patients going on to develop steroid-refractory disease, which increases the risk of nonrelapse mortality...
January 2018: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/29317493/characterization-of-the-interactions-of-potent-allosteric-inhibitors-with-glutaminase-c-a-key-enzyme-in-cancer-cell-glutamine-metabolism
#16
Qingqiu Huang, Clint Stalnecker, Chengliang Zhang, Lee A McDermott, Prema Iyer, Jason O'Neill, Shawn Reimer, Richard A Cerione, William P Katt
Altered glycolytic flux in cancer cells (the Warburg effect) causes their proliferation to rely upon elevated glutamine metabolism (glutamine addiction). This requirement is met by the overexpression of glutaminase C (GAC), which catalyzes the first step in glutamine metabolism and therefore represents a potential therapeutic target. The small molecule CB-839 was reported to be more potent than other allosteric GAC inhibitors, including the parent compound BPTES, and is in clinical trials. Recently, we described the synthesis of BPTES analogs having distinct saturated heterocyclic cores as a replacement for the flexible chain moiety, with improved microsomal stability relative to CB-839 and BPTES...
January 9, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29317036/the-breast-cancer-screening-arcade-and-the-whack-a-mole-efforts-to-reduce-access-to-screening
#17
Daniel B Kopans
The effort to reduce access to breast cancer screening has been going on for decades. As each piece of misinformation has been published, scientific responses have exposed the fallacies, but then new "alternative facts" are generated. The effort has been compared to the arcade game "Whack-a-Mole" in which one false argument is addressed only to have a new one "pop up" to replace it. This has ranged from the false claim that early detection would have no effect on breast cancer, to the fallacious idea that early detection was leading to early deaths among young women, to the more recent false suggestion that tens of thousands of breast cancers found by mammography would disappear if left undetected...
February 2018: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/29315518/hyaluronan-binding-by-cd44-reduces-the-memory-potential-of-activated-murine-cd8-t-cells
#18
Sally S M Lee-Sayer, Nina Maeshima, Meghan N Dougan, Anita Dahiya, Arif A Arif, Manisha Dosanjh, Christopher A Maxwell, Pauline Johnson
Expansion and death of effector CD8 T cells are regulated to limit immunopathology and cells that escape contraction go on to generate immunological memory. CD44, a receptor for the extracellular matrix component hyaluronan, is a marker of activated and memory T cells. Here, we show with a murine model that the increase in CD44 expression and hyaluronan binding induced upon CD8 T cell activation was proportional to the strength of TCR engagement, thereby identifying the most strongly activated T cells. When CD44-/- and CD44+/+ OT-I CD8 T cells were adoptively transferred into mice challenged with Listeria-OVA, there was a slight increase in the percentage of CD44+/+ cells at the effector site...
January 8, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29315216/uniformly-dispersed-and-re-agglomerated-graphene-oxide-based-cement-pastes-a-comparison-of-rheological-properties-mechanical-properties-and-microstructure
#19
Wu-Jian Long, Hao-Dao Li, Chang-Le Fang, Feng Xing
The properties of graphene oxide (GO)-based cement paste can be significantly affected by the state of GO dispersion. In this study, the effects of uniformly dispersed and re-agglomerated GO on the rheological, mechanical properties and microstructure of cement paste were systematically investigated. Two distinct dispersion states can be achieved by altering the mixing sequence: Polycarboxylate-ether (PCE) mixed with GO-cement or cement mixed with GO-PCE. The experimental results showed that the yield stress and plastic viscosity increased with the uniformly dispersed GO when compared to those of re-agglomerated GO cement paste...
January 9, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29313904/peripheral-nerve-injury-arising-in-anaesthesia-practice
#20
REVIEW
D W Hewson, N M Bedforth, J G Hardman
In this article, we will discuss the pathophysiology of peripheral nerve injury in anaesthetic practice, including factors which increase the susceptibility of nerves to damage. We will describe a practical and evidence-based approach to the management of suspected peripheral nerve injury and will go on to discuss major nerve injury patterns relating to intra-operative positioning and to peripheral nerve blockade. We will review the evidence surrounding particular strategies to reduce the incidence of peripheral nerve injury during nerve blockade, including nerve localisation methods, timing of blocks, needle techniques and design, injection pressure-monitoring and local anaesthetic and adjunct choice...
January 2018: Anaesthesia
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