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https://www.readbyqxmd.com/read/100001003/emergency-management-of-sepsis-the-simple-stuff-saves-lives
#1
David Sweet, Julian Marsden, Kendall Ho, Christina Krause, James A Russell
Many emergency departments have implemented sepsis protocols since the 2001 publication of results from the early goal-directed therapy trial, which showed early targeted resuscitation lowers mortality. As part of an attempt to improve clinical and operational outcomes for emergency departments across British Columbia, we reviewed sepsis management literature and considered sepsis protocol implementation in the province’s emergency departments. During the literature review we found that many observational studies confirmed an association between implementation of emergency sepsis protocols and decreased mortality...
May 2012: BC medical journal: BCMJ
https://www.readbyqxmd.com/read/28549339/typical-and-atypical-presenting-symptoms-of-breast-cancer-and-their-associations-with-diagnostic-intervals-evidence-from-a-national-audit-of-cancer-diagnosis
#2
Minjoung Monica Koo, Christian von Wagner, Gary A Abel, Sean McPhail, Greg P Rubin, Georgios Lyratzopoulos
INTRODUCTION: Most symptomatic women with breast cancer have relatively short diagnostic intervals but a substantial minority experience prolonged journeys to diagnosis. Atypical presentations (with symptoms other than breast lump) may be responsible. METHODS: We examined the presenting symptoms of breast cancer in women using data from a national audit initiative (n=2316). Symptoms were categorised topographically. We investigated variation in the length of the patient interval (time from symptom onset to presentation) and the primary care interval (time from presentation to specialist referral) across symptom groups using descriptive analyses and quantile regression...
May 23, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28549172/orrm5-an-rna-recognition-motif-containing-protein-has-a-unique-effect-on-mitochondrial-rna-editing
#3
Xiaowen Shi, Benoit Castandet, Arnaud Germain, Maureen R Hanson, Stéphane Bentolila
Plants have an RNA editing mechanism that prevents deleterious organelle mutations from resulting in impaired proteins. A typical flowering plant modifies about 40 cytidines in chloroplast transcripts and many hundreds of cytidines in mitochondrial transcripts. The plant editosome, the molecular machinery responsible for this process, contains members of several protein families, including the organelle RNA recognition motif (ORRM)-containing family. ORRM1 and ORRM6 are chloroplast editing factors, while ORRM2, ORRM3, and ORRM4 are mitochondrial editing factors...
May 26, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28549157/exposure-to-acute-psychosocial-stress-disrupts-the-luteinizing-hormone-surge-independent-of-estrous-cycle-alterations-in-female-mice
#4
Elizabeth R Wagenmaker, Suzanne M Moenter
The disruptive effects of severe stress on reproductive function are well documented, but surprisingly few studies exist that demonstrate milder psychosocial stressors interfere with the ovarian cycle in females. We hypothesized repeated application of psychosocial stress would disrupt estrous cycles in mice. Mice were transferred to a new cage, transported to a new room and restrained (2h) for 21 consecutive days. Contrary to our hypothesis, this paradigm did not affect estrous cycles. We next tested the hypothesis that a single exposure to mild stress disrupts a specific aspect of the cycle: the proestrous luteinizing hormone (LH) surge...
May 25, 2017: Endocrinology
https://www.readbyqxmd.com/read/28549087/thalamic-alterations-remote-to-infarct-appear-as-focal-iron-accumulation-and-impact-clinical-outcome
#5
Grégory Kuchcinski, Fanny Munsch, Renaud Lopes, Antoine Bigourdan, Jason Su, Sharmila Sagnier, Pauline Renou, Jean-Pierre Pruvo, Brian K Rutt, Vincent Dousset, Igor Sibon, Thomas Tourdias
Thalamic alterations have been observed in infarcts initially sparing the thalamus but interrupting thalamo-cortical or cortico-thalamic projections. We aimed at extending this knowledge by demonstrating with in vivo imaging sensitive to iron accumulation, one marker of neurodegeneration, that (i) secondary thalamic alterations are focally located in specific thalamic nuclei depending on the initial infarct location; and (ii) such secondary alterations can contribute independently to the long-term outcome. To tackle this issue, 172 patients with an infarct initially sparing the thalamus were prospectively evaluated clinically and with magnetic resonance imaging to quantify iron through R2* map at 24-72 h and at 1-year follow-up...
May 25, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28548937/nac1-promotes-self-renewal-of-embryonic-stem-cells-through-direct-transcriptional-regulation-of-c-myc
#6
Yan Ruan, Jianrong He, Wei Wu, Ping He, Yanping Tian, Lan Xiao, Gaoke Liu, Jiali Wang, Yuda Cheng, Shuo Zhang, Yi Yang, Jiaxiang Xiong, Ke Zhao, Ying Wan, He Huang, Junlei Zhang, Rui Jian
The pluripotency transcriptional network in embryonic stem cells (ESCs) is composed of distinct functional units including the core and Myc units. It is hoped that dissection of the cellular functions and interconnections of network factors will aid our understanding of ESC and cancer biology. Proteomic and genomic approaches have identified Nac1 as a member of the core pluripotency network. However, previous studies have predominantly focused on the role of Nac1 in psychomotor stimulant response and cancer pathogenesis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548927/the-impact-of-delayed-commencement-of-adjuvant-chemotherapy-eight-or-more-weeks-on-survival-in-stage-ii-and-iii-colon-cancer-a-national-population-based-cohort-study
#7
Young Wan Kim, Eun Hee Choi, Bo Ra Kim, Woo-Ah Ko, Yeong-Mee Do, Ik Yong Kim
BACKGROUND: To examine the impact of chemotherapy delay on survival in patients with stage II or III colon cancer and the factors associated with the delay (≥8 weeks) of adjuvant chemotherapy. METHODS: Patients undergoing curative resection and adjuvant chemotherapy in a national population-based cohort were included. RESULTS: Among 5355 patients, 154 (2.9%) received chemotherapy more than 8 weeks after surgery. Based on a multivariate analysis, the risk factors associated with chemotherapy delay ≥8 weeks were older age [65 to 74 years (hazard ratio [HR]=1...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548920/evaluation-of-biofidelity-of-thums-pedestrian-model-under-a-whole-body-impact-conditions-with-a-generic-sedan-buck
#8
Taotao Wu, Taewung Kim, Varun Bollapragada, David Poulard, Huipeng Chen, Matthew B Panzer, Jason L Forman, Jeff R Crandall, Bengt Pipkorn
OBJECTIVE: The goal of this study was to evaluate the biofidelity of the Total Human Model for Safety (THUMS; Ver. 4.01) pedestrian finite element models (PFEM) in a whole-body pedestrian impact condition using a well-characterized generic pedestrian buck model. METHODS: The biofidelity of THUMS PFEM was evaluated with respect to data from 3 full-scale postmortem human subject (PMHS) pedestrian impact tests, in which a pedestrian buck laterally struck the subjects using a pedestrian buck at 40 km/h...
May 29, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28548880/modeling-choices-in-delay-discounting
#9
Dirk U Wulff, Wouter van den Bos
No abstract text is available yet for this article.
May 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28548834/subtly-modulating-glycogen-synthase-kinase-3-%C3%AE-allosteric-inhibitors-development-and-their-potential-for-the-treatment-of-chronic-diseases
#10
Valle Palomo, Daniel I Pérez, Carlos Roca, Cara Anderson, Natalia Rodriguez-Muela, Concepción Pérez, Jose A Morales-Garcia, Julio A Reyes, Nuria E Campillo, Ana M Pérez-Castillo, Lee L Rubin, Lubov T Timchenko, Carmen Gil, Ana Martínez
Glycogen synthase kinase 3 β (GSK-3β) is a central target in several unmet diseases. To increase the specificity of GSK-3β inhibitors in chronic treatments we are developing small molecules allowing subtle modulation of GSK-3β activity. Design synthesis, structure-activity relationships and binding mode of quinoline-3-carbohydrazide derivatives as allosteric modulators of GSK-3β are here presented. Furthermore, we show how allosteric binders may overcome the β-catenin side effects associated to strong GSK-3β inhibition...
May 26, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28548676/the-diagnosis-and-management-of-chronic-migraine-in-primary-care
#11
Werner J Becker
BACKGROUND: Chronic migraine is common, affecting approximately 1% of the general population, and causes significant disability. OBJECTIVE: To summarize optimal involvement of primary care physicians in chronic migraine care, and to provide algorithms to assist them in the diagnosis and management of patients with chronic migraine. METHODS: An analysis of diagnostic and treatment needs in chronic migraine, based on a synthesis of the medical literature and clinical experience...
May 26, 2017: Headache
https://www.readbyqxmd.com/read/28548598/associations-between-endothelin-polymorphisms-and-aneurysmal-subarachnoid-hemorrhage-clinical-vasospasm-delayed-cerebral-ischemia-and-functional-outcome
#12
Christoph J Griessenauer, Robert M Starke, Paul M Foreman, Philipp Hendrix, Mark R Harrigan, Winfield S Fisher, Nilesh A Vyas, Robert H Lipsky, Mingkuan Lin, Beverly C Walters, Jean-Francois Pittet, Mali Mathru
OBJECTIVE Endothelin-1, a potent vasoconstrictor, and its receptors may be involved in the pathogenesis of aneurysmal subarachnoid hemorrhage (aSAH), clinical vasospasm, delayed cerebral ischemia (DCI), and functional outcome following aSAH. In the present study, common endothelin single nucleotide polymorphisms (SNPs) and their relation to aSAH were evaluated. METHODS Blood samples from all patients enrolled in the Cerebral Aneurysm Renin Angiotensin System (CARAS) study were used for genetic evaluation. The CARAS study prospectively enrolled patients with aSAH at 2 academic institutions in the US from 2012 to 2015...
May 26, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28548596/cyst-formation-after-stereotactic-radiosurgery-for-brain-arteriovenous-malformations-a-systematic-review
#13
Adeel Ilyas, Ching-Jen Chen, Dale Ding, Panagiotis Mastorakos, Davis G Taylor, I Jonathan Pomeraniec, Cheng-Chia Lee, Jason Sheehan
OBJECTIVE Cyst formation can occasionally occur after stereotactic radiosurgery (SRS) for brain arteriovenous malformations (AVMs). Given the limited data regarding post-SRS cyst formation in patients with AVM, the time course, natural history, and management of this delayed complication are poorly defined. The aim of this systematic review was to determine the incidence, time course, and optimal management of cyst formation after SRS for AVMs. METHODS A literature review was performed using PubMed to identify studies reporting cyst formation in AVM patients treated with SRS...
May 26, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28548570/embolic-mycotic-encephalitis-in-a-cow-following-mortierella-wolfii-infection-of-a-surgery-site
#14
Benjamin Curtis, Charlotte Hollinger, Ailam Lim, Matti Kiupel
A 5-y-old Holstein dairy cow had surgery for a suspected displaced abomasum 10 d postpartum, developed acute neurologic signs at day 19, and was found dead 21 d postpartum. At autopsy, there was a peri-incisional intramuscular abscess that communicated with the peritoneal cavity, as well as hemorrhage and malacia involving the brain, and multiple nodules in the liver, kidneys, and lungs. Fungal hyphae were seen histologically at the surgery site, on the surface of the liver, and in lesions of severe necrotizing vasculitis in the lungs, kidneys, brain, and liver...
May 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28548537/dispersive-time-delay-dynamical-systems
#15
Alexander Pimenov, Svetlana Slepneva, Guillaume Huyet, Andrei G Vladimirov
We present a theoretical approach to investigate the effect of dispersion in dynamical systems commonly described by time-delay models. The introduction of a polarization equation provides a means to introduce dispersion as a distributed delay term. The expansion of this term in power series, as usually performed to study the propagation of waves in spatially extended systems, can lead to the appearance of spurious instabilities. This approach is illustrated using a long cavity laser, where in the normal dispersion regime both the experiment and theory show a stable operation, while a modulation instability, commonly referred as the Benjamin-Feir instability, is observed in the anomalous dispersion regime...
May 12, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28548498/fluorescence-and-phosphorescence-anisotropy-from-oriented-films-of-thermally-activated-delayed-fluorescence-emitters
#16
Heather Fay Higginbotham, Marc Kenneth Etherington, Andrew P Monkman
Anisotropy within three TADF materials has been observed using steady-state fluorescence polarisation. This technique has allowed for the observation of differences in polarisation within dilute solution, and both un-stretched and stretched films; the latter producing highly aligned molecules within the sample. Using these aligned films differences in anisotropy can be observed between the emission from the 1LE and 1CT states and upon exciting different absorption bands. Furthermore, polarisation observed from time-resolved measurements, highlights the strong vibronic coupling between charge-transfer and local triplet states...
May 26, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28548349/head-withers-and-pelvic-movement-asymmetry-and-their-relative-timing-in-trot-in-racing-thoroughbreds-in-training
#17
T Pfau, K Noordwijk, M F Sepulveda Caviedes, E Persson-Sjodin, A Barstow, B Forbes, M Rhodin
BACKGROUND: Horses show compensatory head movement in hindlimb lameness and compensatory pelvis movement in forelimb lameness but little is known about the relationship of withers movement symmetry with head and pelvic asymmetry in horses with naturally occurring gait asymmetries. Objectives To document head, withers and pelvic movement asymmetry and timing differences in horses with naturally occurring gait asymmetries. STUDY DESIGN: Retrospective analysis of gait data...
May 26, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28548328/epithelioid-trophoblastic-tumor-of-the-uterus-a-case-report-with-radiologic-pathologic-correlation
#18
Ayumi Ohya, Kayoko Higuchi, Hisashi Shimojo, Yasunari Fujinaga, Masumi Kadoya, Shigeki Shiohara
Herein, we report a rare case of an epithelioid trophoblastic tumor of the uterus with radiologic-pathologic correlation in a 56-year-old postmenopausal woman. On T2-weighted magnetic resonance (MR) imaging, the tumor appeared as a hypointense irregular mass compared with the surrounding myometrium of the uterine corpus and encircled the cavity of the lower uterine segment. On dynamic contrast-enhanced MR images, the tumor appeared as a hypovascular mass and an inhomogeneously hyperintense mass in the delayed phase...
May 26, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28548304/delayed-onset-muscle-soreness-doms-does-not-influence-occlusal-sensitivity-and-position-sense-of-the-mandible
#19
Rosaria Bucci, Frank Lobbezoo, Ambrosina Michelotti, Christina Orfanou, Michail Koutris
BACKGROUND: Masticatory muscle-pain patients often complain about sensorimotor changes, but the effects of pain on the psychophysical properties remain unclear. This study aimed to investigate the effects of Delayed-Onset Muscle Soreness (DOMS) on the jaw's position sense (PS) and occlusal sensitivity (OS). METHODS: Twelve participants underwent intense concentric-eccentric jaw exercises. Self-reported muscle fatigue and pain, pain-free maximum mouth opening (MMO), pain pressure thresholds (PPTs) at right and left masseter and right and left anterior temporalis, maximum voluntary bite force (MVBF), PS, and OS were recorded before, immediately after, 24h, 48h, and one week after the exercises...
May 26, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28548232/hard-and-soft-tissue-integration-of-immediate-and-delayed-implants-with-a-modified-coronal-macro-design-histologic-micro-ct-and-volumetric-soft-tissue-changes-from-a-pre-clinical-in-vivo-study
#20
I Sanz-Martin, F Vignoletti, J Nuñez, M Permuy, F Muñoz, J Sanz-Esporrín, L Fierravanti, L Shapira, M Sanz
AIM: To study the healing of peri-implant tissues around implants with a triangular coronal third (test) or cylindrical (control). MATERIAL AND METHODS: In eight beagle dogs, immediate and delayed implants were placed. Test and control implants were randomly assigned and the hard and soft tissue healing was evaluated with histology and Micro CT analysis at 4 weeks and 12 weeks. The soft tissue contour changes were assessed by image analysis software. RESULTS: When measured at the implant shoulder level, the buccal crestal width (primary outcome assessed in mm) attained similar values in test and control implants...
May 26, 2017: Journal of Clinical Periodontology
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