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https://www.readbyqxmd.com/read/28643903/resolving-differences-between-animal-models-for-expedited-orthodontic-tooth-movement
#1
A Y Ibrahim, S Gudhimella, S N Pandruvada, S S Huja
OBJECTIVE: To highlight differences in commonly used animal models of orthodontic tooth movement (OTM). METHODS: Narrative review. RESULTS: A critical review of the literature on animal models has become increasingly important in the last decade as methods to increase the rate of tooth movement have been intensely sought. We provide a review focusing on the rodent and canine models for expedited OTM and describe the challenges in extrapolation of the results to the clinical practice of orthodontics...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28640860/the-path-to-specialist-multidisciplinary-care-in-amyotrophic-lateral-sclerosis-a-population-based-study-of-consultations-interventions-and-costs
#2
Miriam Galvin, Padhraig Ryan, Sinead Maguire, Mark Heverin, Caoifa Madden, Alice Vajda, Charles Normand, Orla Hardiman
BACKGROUND: Amyotrophic Lateral Sclerosis (ALS) is a devastating neurological condition that requires coordinated, multidisciplinary clinical management. ALS is prone to misdiagnosis as its signs and symptoms may be non-specific, which may prolong patients' journey to multidisciplinary ALS care. METHODS: Using chart review and national register data, we have detailed the journey of a national cohort of ALS patients (n = 155) from the time of first symptom to presentation at a multidisciplinary clinic (MDC)...
2017: PloS One
https://www.readbyqxmd.com/read/28637916/model-based-analysis-of-an-outbreak-of-bubonic-plague-in-cairo-in-1801
#3
Xavier Didelot, Lilith K Whittles, Ian Hall
Bubonic plague has caused three deadly pandemics in human history: from the mid-sixth to mid-eighth century, from the mid-fourteenth to the mid-eighteenth century and from the end of the nineteenth until the mid-twentieth century. Between the second and the third pandemics, plague was causing sporadic outbreaks in only a few countries in the Middle East, including Egypt. Little is known about this historical phase of plague, even though it represents the temporal, geographical and phylogenetic transition between the second and third pandemics...
June 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28637848/using-captain-scott-s-discovery-specimens-to-unlock-the-past-has-antarctic-cyanobacterial-diversity-changed-over-the-last-100-years
#4
Anne D Jungblut, Ian Hawes
Evidence of climate-driven environmental change is increasing in Antarctica, and with it comes concern that this will propagate to impacts on biological communities. Recognition and prediction of change needs to incorporate the extent and timescales over which communities vary under extant conditions. However, few observations of Antarctic microbial communities, which dominate inland habitats, allow this. We therefore carried out the first molecular comparison of Cyanobacteria in historic herbarium microbial mats from freshwater ecosystems on Ross Island and the McMurdo Ice Shelf, collected by Captain R...
June 28, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28637573/laparoscopic-appendectomy-protocol-expedites-management-of-uncomplicated-acute-appendicitis
#5
Alvaro M Bada, Joseph A Ibrahim, Karen Safcsak, Andrew C Gratzon, Chadwick P Smith, Michael L Cheatham
Bed availability remains a constant struggle for tertiary care centers resulting in the use of management protocols to streamline patient care and reduce length of stay (LOS). A standardized perioperative management protocol for uncomplicated acute appendicitis (UA) was implemented in April 2014 to decrease both CT scan usage and LOS. Patients who underwent laparoscopic appendectomy for UA from April 2012 to May 2013 (PRE group) and April 2014 to May 2015 (POST group) were compared retrospectively. There were no differences in patient demographics or clinical findings between the groups...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28636804/new-insights-into-global-biogeography-population-structure-and-natural-selection-from-the-genome-of-the-epipelagic-copepod-oithona
#6
Mohammed-Amin Madoui, Julie Poulain, Kevin Sugier, Marc Wessner, Benjamin Noel, Leo Berline, Karine Labadie, Astrid Cornils, Leocadio Blanco-Bercial, Lars Stemmann, Jean-Louis Jamet, Patrick Wincker
In the epipelagic ocean the genus Oithona is considered as one of the most abundant and widespread copepods and plays an important role in the trophic food web. Despite its ecological importance, little is known about the Oithona and cyclopoid copepods genomics. Therefore, we sequenced, assembled and annotated the genome of Oithona nana. The comparative genomic analysis integrating available copepod genomes highlighted the expansions of genes related to stress response, cell differentiation, and development, including genes coding Lin12-Notch-Repeat (LNR) domain proteins...
June 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28636589/identifying-specificity-groups-in-the-t-cell-receptor-repertoire
#7
Jacob Glanville, Huang Huang, Allison Nau, Olivia Hatton, Lisa E Wagar, Florian Rubelt, Xuhuai Ji, Arnold Han, Sheri M Krams, Christina Pettus, Nikhil Haas, Cecilia S Lindestam Arlehamn, Alessandro Sette, Scott D Boyd, Thomas J Scriba, Olivia M Martinez, Mark M Davis
T cell receptor (TCR) sequences are very diverse, with many more possible sequence combinations than T cells in any one individual. Here we define the minimal requirements for TCR antigen specificity, through an analysis of TCR sequences using a panel of peptide and major histocompatibility complex (pMHC)-tetramer-sorted cells and structural data. From this analysis we developed an algorithm that we term GLIPH (grouping of lymphocyte interactions by paratope hotspots) to cluster TCRs with a high probability of sharing specificity owing to both conserved motifs and global similarity of complementarity-determining region 3 (CDR3) sequences...
June 21, 2017: Nature
https://www.readbyqxmd.com/read/28636191/-fast-track-development-and-approval-process-for-heart-failure-therapeutics
#8
L Papadimitriou, J Butler
Heart failure (HF) is a global epidemic, with a high mortality and morbidity burden. In such diseases, earlier access to lifesaving therapeutic regimens is imperative, and could be accomplished by improving the drug development and approval process, without jeopardizing patient safety. The US Food and Drug Administration (FDA) has already established mechanisms facilitating the latter, but further guidance to enhance and expedite the process holds promise to further improve patient outcomes.
June 21, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28635997/a-spin-column-free-approach-to-sodium-hydroxide-based-glycan-permethylation
#9
Yueming Hu, Chad R Borges
Glycan permethylation was introduced as a tool to facilitate the study of glycans in 1903. Since that time, permethylation procedures have been continually modified to improve permethylation efficiency and qualitative applicability. Typically, however, either laborious preparation steps or cumbersome and uneconomical spin columns have been needed to obtain decent permethylation yields on small glycan samples. Here we describe a spin column-free (SCF) glycan permethylation procedure that is applicable to both O- and N-linked glycans and can be employed upstream to intact glycan analysis by MALDI-MS, ESI-MS, or glycan linkage analysis by GC-MS...
June 21, 2017: Analyst
https://www.readbyqxmd.com/read/28634339/effective-synthesis-of-highly-oxidized-graphene-oxide-that-enables-wafer-scale-nanopatterning-preformed-acidic-oxidizing-medium-approach
#10
Chun-Hu Chen, Shin Hu, Jyun-Fu Shih, Chang-Ying Yang, Yun-Wen Luo, Ren-Huai Jhang, Chao-Ming Chiang, Yung-Jr Hung
Demand for rapid and massive-scale exfoliation of bulky graphite remains high in graphene commercialization and property manipulation. We report a procedure utilizing "preformed acidic oxidizing medium (PAOM)" as a modified version of the Hummers' method for fast and reliable synthesis of graphene oxide. Pre-mixing of KMnO4 and concentrated H2SO4 prior to the addition of graphite flakes enables the formation of effectively and efficiently oxidized graphene oxide (EEGO) featured by its high yields and suspension homogeneity...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633591/approaches-in-topical-ocular-drug-delivery-and-developments-in-the-use-of-contact-lenses-as-drug-delivery-devices
#11
Prina Mehta, Rita Haj-Ahmad, Ali Al-Kinani, Muhammad Sohail Arshad, Ming-Wei Chang, Raid G Alany, Zeeshan Ahmad
Drug-delivery approaches have diversified over the last two decades with the emergence of nanotechnologies, smart polymeric systems and multimodal functionalities. The intended target for specific treatment of disease is the key defining developing parameter. One such area which has undergone significant advancements relates to ocular delivery. This has been expedited by the development of material advancement, mechanistic concepts and through the deployment of advanced process technologies. This review will focus on the developments within lens-based drug delivery while touching on conventional and current methods of topical ocular drug delivery...
July 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28629958/the-provision-of-prescription-only-medicines-for-use-on-uk-based-overseas-expeditions
#12
James K Moore, Matthew Ladbrook, Larry Goodyer, Jon Dallimore
Expedition teams without accompanying medical professionals traveling overseas from the UK frequently carry medical kits containing prescription-only medicines (POMs). Access to safe, basic POMs whilst on expedition is important, as the quality and availability of medicines in-country may not be acceptable, and delay in treatment may be hazardous. At present, there is no published guidance relating to drug acquisition and administration in these situations. In the UK, a number of different practices are currently in use, with uncertainty and medicolegal concerns currently hampering safe and efficient provision of POMs on overseas expeditions...
June 16, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28628776/3d-printed-lattices-as-an-activation-and-expansion-platform-for-t-cell-therapy
#13
Bahman Delalat, Frances Harding, Batjargal Gundsambuu, Elena M De-Juan-Pardo, Felix M Wunner, Marie-Luise Wille, Marek Jasieniak, Kristen A L Malatesta, Hans J Griesser, Antonio Simula, Dietmar W Hutmacher, Nicolas H Voelcker, Simon C Barry
One of the most significant hurdles to the affordable, accessible delivery of cell therapy is the cost and difficulty of expanding cells to clinically relevant numbers. Immunotherapy to prevent autoimmune disease, tolerate organ transplants or target cancer critically relies on the expansion of specialized T cell populations. We have designed 3D-printed cell culture lattices with highly organized micron-scale architectures, functionalized via plasma polymerization to bind monoclonal antibodies that trigger cell proliferation...
June 7, 2017: Biomaterials
https://www.readbyqxmd.com/read/28628049/early-access-to-physical-therapy-and-specialty-care-management-for-american-workers-with-musculoskeletal-injuries
#14
Timothy D Phillips, Michael J Shoemaker
OBJECTIVE: The aim of this study was to investigate the effect of very early access to physical therapy and specialty care management in a workers' compensation population. METHODS: A prospective pilot (n = 75) was conducted from 2012 to 2013 in which injured workers with musculoskeletal complaints received physical therapy and started care management during their initial occupational medicine clinic visit. Two retrospective comparator groups with workers' compensation claims from 2009 and 2012 were included in this study...
April 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28627567/dissecting-binding-of-a-%C3%AE-barrel-membrane-protein-by-phage-display
#15
Luz M Meneghini, Sarvind Tripathi, Marcus A Woodworth, Sudipta Majumdar, Thomas L Poulos, Gregory A Weiss
Membrane proteins (MPs) constitute a third of all proteomes, and contribute to a myriad of cellular functions including intercellular communication, nutrient transport and energy generation. For example, TonB-dependent transporters (TBDTs) in the outer membrane of Gram-negative bacteria play an essential role transporting iron and other nutrients into the bacterial cell. The inherently hydrophobic surfaces of MPs complicates protein expression, purification, and characterization. Thus, dissecting the functional contributions of individual amino acids or structural features through mutagenesis can be a challenging ordeal...
June 19, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28625392/a-novel-risk-score-to-predict-the-need-for-nutrition-support-after-cardiac-surgery
#16
Rika E Ohkuma, Todd C Crawford, Patricia M Brown, Joshua C Grimm, J Trent Magruder, Arman Kilic, Alejandro Suarez-Pierre, Sukyee Snyder, Justin D Wood, Eric Schneider, Marc S Sussman, Glenn J R Whitman
BACKGROUND: In specific patients, early postoperative nutrition mitigates malnutrition-related morbidity and mortality. The goal of this study was to develop and validate a prediction score designed to stratify patients immediately after cardiac surgery according to risk for nutrition support (NS). METHODS: We identified adult cardiac surgery patients at our institution in 2012 requiring postoperative NS, enteral or parenteral. Using multivariable logistic regression modeling, we developed a Johns Hopkins Hospital Nutrition Support (JHH NS) score from relative odds ratios generated by variables that independently predicted the need for NS...
May 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28624690/toward-a-genetic-tool-development-pipeline-for-host-associated-bacteria
#17
REVIEW
Matthew C Waller, Josef R Bober, Nikhil U Nair, Chase L Beisel
Bacteria reside in externally accessible niches on and in multicellular organisms, often forming mutualistic relationships with their host. Recent studies have linked the composition of these microbial communities with alterations in the host's health, behavior, and development, yet the causative mediators of host-microbiota interactions remain poorly understood. Advances in understanding and engineering these interactions require the development of genetic tools to probe the molecular interactions driving the structure and function of microbial communities as well as their interactions with their host...
June 15, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28622929/catarrhine-hallucal-metatarsals-from-the-early-miocene-site-of-songhor-kenya
#18
Biren A Patel, Gabriel S Yapuncich, Cassandra Tran, Isaiah O Nengo
Songhor is an early Miocene fossil locality in Kenya known for its diverse primate assemblage that includes catarrhine species belonging to the genera Kalepithecus, Limnopithecus, Dendropithecus, Rangwapithecus, and Proconsul. Expeditions to Songhor since the 1930s have recovered unassociated catarrhine postcranial remains from both the fore- and hindlimbs, including multiple elements from the feet. In this study, we describe KNM-SO 31233, a complete left hallucal metatarsal (Mt1), along with several other fragmentary Mt1 specimens (KNM-SO 1080, 5129, 5141, 22235)...
July 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28622178/labor-analgesia-onset-with-dural-puncture-epidural-versus-traditional-epidural-using-a-26-gauge-whitacre-needle-and-0-125-bupivacaine-bolus-a-randomized-clinical-trial
#19
Sylvia H Wilson, Bethany J Wolf, Kellie N Bingham, Quiana S Scotland, John M Fox, Erick M Woltz, Latha Hebbar
BACKGROUND: Lumbar epidurals (LEs) provide excellent analgesia. Combined spinal epidural and dural puncture epidural (DPE) are 2 techniques to expedite neuraxial analgesia onset. In DPE, dura is punctured but medication is not administered in the cerebrospinal fluid. Expedited analgesia onset has been demonstrated with DPE, using 0.25% bupivacaine; however, this concentration may impede an unassisted vaginal birth and is not currently used for induction and maintenance of labor analgesia...
June 14, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28620984/saliva-testing-for-hpv-in-oropharyngeal-squamous-cell-carcinoma-opscc-a-diagnostic-accuracy-study
#20
Ali Qureishi, Mohammad Ali, Lisa Fraser, Ketan A Shah, Henrik Møller, Stuart Winter
BACKGROUND: New cases of oropharyngeal squamous cell carcinoma (OPSCC) are routinely tested for HPV. HPV in saliva can be detected with PCR, but its clinical applicability in the context of OPSCC remains unknown. METHODS: Forty-six consecutive patients diagnosed with OPSCC had pre-treatment saliva specimens collected. PCR for HPV on saliva was compared to p16 IHC and HPV DNA in-situ hybridisation (ISH) on surgical biopsies. RESULTS: The sensitivity and specificity of saliva testing when compared to the reference test of p16 IHC and HPV DNA ISH was 72...
June 16, 2017: Clinical Otolaryngology
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