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https://www.readbyqxmd.com/read/28445723/mosquitoes-transmit-unique-west-nile-virus-populations-during-each-feeding-episode
#1
Nathan D Grubaugh, Joseph R Fauver, Claudia Rückert, James Weger-Lucarelli, Selene Garcia-Luna, Reyes A Murrieta, Alex Gendernalik, Darci R Smith, Doug E Brackney, Gregory D Ebel
Arthropod-borne viruses (arboviruses), such as Zika virus, chikungunya virus, and West Nile virus (WNV), pose continuous threats to emerge and cause large epidemics. Often, these events are associated with novel virus variants optimized for local transmission that first arise as minorities within a host. Thus, the conditions that regulate the frequency of intrahost variants are important determinants of emergence. Here, we describe the dynamics of WNV genetic diversity during its transmission cycle. By temporally sampling saliva from individual mosquitoes, we demonstrate that virus populations expectorated by mosquitoes are highly diverse and unique to each feeding episode...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445702/an-early-history-of-anesthesia-in-labor
#2
Mary E Gibson
Fear of pain often overshadows childbirth, and each woman must decide whether to receive anesthesia to combat labor pain. Historically, this choice resulted in unintended consequences and marked the beginnings of medical interventions in labor and birth. The purpose of this article is to trace the use of anesthesia in childbirth from the mid-19th to the mid-20th centuries and to explore its influence on childbearing women and nurses.
April 23, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28445473/how-to-plan-reintroductions-of-long-lived-birds
#3
Virginia Morandini, Miguel Ferrer
Reintroductions have been increasingly used for species restoration and it seems that this conservation tool is going to be more used in the future. Nevertheless, there is not a clear consensus about the better procedure for that, consequently a better knowledge of how to optimize this kind of management is needed. Here we examined the dynamics of released long-lived bird populations (lesser kestrel, Falco naumanni, Bonelli's eagle Aquila fasciata, and bearded vulture Gypaetus barbatus) in object-oriented simulated reintroduction programs...
2017: PloS One
https://www.readbyqxmd.com/read/28445461/tumour-ischaemia-by-interferon-%C3%AE-resembles-physiological-blood-vessel-regression
#4
Thomas Kammertoens, Christian Friese, Ainhoa Arina, Christian Idel, Dana Briesemeister, Michael Rothe, Andranik Ivanov, Anna Szymborska, Giannino Patone, Severine Kunz, Daniel Sommermeyer, Boris Engels, Matthias Leisegang, Ana Textor, Hans Joerg Fehling, Marcus Fruttiger, Michael Lohoff, Andreas Herrmann, Hua Yu, Ralph Weichselbaum, Wolfgang Uckert, Norbert Hübner, Holger Gerhardt, Dieter Beule, Hans Schreiber, Thomas Blankenstein
The relative contribution of the effector molecules produced by T cells to tumour rejection is unclear, but interferon-γ (IFNγ) is critical in most of the analysed models. Although IFNγ can impede tumour growth by acting directly on cancer cells, it must also act on the tumour stroma for effective rejection of large, established tumours. However, which stroma cells respond to IFNγ and by which mechanism IFNγ contributes to tumour rejection through stromal targeting have remained unknown. Here we use a model of IFNγ induction and an IFNγ-GFP fusion protein in large, vascularized tumours growing in mice that express the IFNγ receptor exclusively in defined cell types...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445302/cholestasis-caused-by-panhypopituitarism-and-acquired-cytomegalovirus-infection-in-a-2-month-old-male-infant-a-case-report
#5
U Chan, Wai-Tao Chan, Wei-Hsin Ting, Che-Sheng Ho, Hsi-Che Liu, Hung-Chang Lee
RATIONALE: Septo-optic dysplasia (SOD) is a rare congenital disorder that may cause jaundice in infants. However, it is usually prone to neglect and misdiagnosis in infants with cholestasis because endocrine disorder such as panhypopituitarism is rare in the cause of infantile cholestasis. We report a case of SOD concurrent with acquired cytomegalovirus (CMV) infection, who presented with prolonged jaundice as the first clinical sign. PATIENT CONCERNS: The patient was a 2-month-old male infant who presented with cholestasis, combined with fever and panhypopituitarism...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445284/appendiceal-foreign-body-in-an-infant
#6
Min Lee, Soon Chul Kim
RATIONALE FOR THIS CASE REPORT: Many children are hospitalized because of foreign body ingestion. In such circumstances, the gastroenterologist must consider the timing of ingestion; the size, type, and location of the object ingested; and the patient's symptoms. But appendiceal foreign body in infant is very rare. PATIENT CONCERNS: A 12-month-old boy visited because of swallowing small objects 2 weeks ago. Three small beads were found in the right lower quadrant on abdominal radiography...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445273/staged-management-of-open-lisfranc-injury-experience-from-14-patients
#7
Wenqi Gu, Zhongmin Shi
There are still controversies on the management and outcome of open Lisfranc injury in available studies. This study evaluates the staged management of Lisfranc injury and its complications.Patients who received a staged strategy for open Lisfranc injury were reviewed.One patient with degloving injury suffered from partial skin and hallux necrosis which was treated by debridement, hallux amputation, definitive internal fixation, and local flap transfer on the 12th day after first stage management. A definitive internal fixation and simultaneous skin graft or flap coverage were performed in another 3 patients with soft tissue defects...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445229/a-cross-sectional-and-retrospective-cohort-analysis-of-the-effects-of-age-on-flexibility-strength-endurance-lower-body-power-and-aerobic-fitness-in-law-enforcement-officers
#8
Robert G Lockie, J Jay Dawes, Charles L Kornhauser, Ryan J Holmes
There can be a great age range in cohorts of law enforcement officers. As the tasks required of officers generally do not change with advancing age, it is important to understand how physical performance in tests that assess job-specific characteristics may be altered. Retrospective analysis of performance test data for 383 officers (362 males, 21 females) was conducted. The tests included: sit-and-reach to determine hamstring and lower back flexibility; maximal push-up and sit-up repetitions in 60 s to measure muscle endurance; vertical jump (VJ) to assess lower-body power; and 2...
April 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28445221/changes-in-personal-relationships-during-residency-and-their-effects-on-resident-wellness-a-qualitative-study
#9
Marcus Law, Michelle Lam, Diana Wu, Paula Veinot, Maria Mylopoulos
PURPOSE: Residency poses challenges for residents' personal relationships. Research suggests residents rely on family and friends for support during their training. The authors explored the impact of residency demands on residents' personal relationships and the effects changes in those relationships could have on their wellness. METHOD: The authors used a constructivist grounded theory approach. In 2012-2014, they conducted semistructured interviews with a purposive and theoretical sample of 16 Canadian residents from various specialties and training levels...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28444664/endocrine-complications-of-surgical-treatment-of-thyroid-cancer-an-update
#10
Pedro Iglesias, Juan José Díez
Postoperative hypoparathyroidism (HypoPT) and hypothyroidism (HypoT) are the main endocrine complications after the surgical treatment for thyroid cancer. Postsurgical HypoPT can be transient, protracted or permanent. Its frequency varies according to the underlying cervical pathology, surgical technique, and mainly the experience of the surgeon. Risk factors for HypoPT include aggressiveness of the tumor, extent of surgery, the presence of parathyroid gland in the pathologic specimen, and surgeon experience...
April 25, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28444558/evolution-of-surgical-treatment-for-rectal-cancer-a-review
#11
Sanjeev Dayal, Nick Battersby, Tom Cecil
Surgery that produces an optimal total mesorectal excision (TME) resection specimen remains the cornerstone of curative rectal cancer management. In the modern era, despite the results of recent randomised trials, laparoscopic TME is a crucial technique in the TME surgery armamentarium. Laparoscopic surgery offers the benefit of magnified views that aid sharp and precise dissection. However operating in the confines of a narrow pelvis, particularly when the mesorectum is bulky, requires significant technical skill...
April 25, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28444521/leprosy-in-children
#12
REVIEW
Josafá Gonçalves Barreto, Marco Andrey Cipriani Frade, Fred Bernardes Filho, Moises Batista da Silva, John Stewart Spencer, Claudio Guedes Salgado
PURPOSE OF REVIEW: This manuscript aims to review the cutting-edge developments regarding to the diagnosis, management, and prevention of leprosy in children. RECENT FINDINGS: Leprosy transmission still occurs continuously in some endemic areas in the world. Leprosy in children below 15 years old is a robust indicator of active source of infection in the community where they live. A special focus on children to reduce disabilities and reduce transmission is one of the core areas of interventions of the global leprosy strategy 2016-2020...
June 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28444492/optimal-radial-force-and-size-for-palliation-in-gastroesophageal-adenocarcinoma-a-comparative-analysis-of-current-stent-technology
#13
Nsehniitooh Mbah, Prejesh Philips, Michael J Voor, Robert C G Martin
BACKGROUND: The optimal use of esophageal stents for malignant and benign esophageal strictures continues to be plagued with variability in pain tolerance, migration rates, and reflux-related symptoms. The aim of this study was to evaluate the differences in radial force exhibited by a variety of esophageal stents with respect to the patient's esophageal stricture. METHODS: Radial force testing was performed on eight stents manufactured by four different companies using a hydraulic press and a 5000 N force gage...
April 25, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28444460/hydrocephalus-a-rare-initial-manifestation-of-sporadic-intramedullary-hemangioblastoma-intramedullary-hemangioblastoma-presenting-as-hydrocephalus
#14
Barbara Albuquerque Morais, Daniel Dante Cardeal, Renan Ribeiro E Ribeiro, Fernando Pereira Frassetto, Fernanda Goncalves Andrade, Hamilton Matushita, Manoel Jacobsen Teixeira
BACKGROUND: Intramedullary hemangioblastomas are rare benign vascular tumors, infrequent in pediatric patients. Clinical symptoms vary according to the age of presentation, tumor size, location, and concomitant syringomyelia. This is the second reported case of hemangioblastoma presenting with acute hydrocephalus. CASE PRESENTATION: A 3-month-old infant with acute hydrocephalus was asymptomatic after a ventriculoperitoneal shunt was placed. She returned 3 months later with irritability, acute paraplegia, and respiratory distress...
April 25, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28444342/harm-and-the-boundaries-of-disease
#15
Patrick McGivern, Sarah Sorial
What is the relationship between harm and disease? Discussions of the relationship between harm and disease typically suffer from two shortcomings. First, they offer relatively little analysis of the concept of harm itself, focusing instead on examples of clear cases of harm such as death and dismemberment. This makes it difficult to evaluate such accounts in borderline cases, where the putative harms are less severe. Second, they assume that harm-based accounts of disease must be understood normatively rather than naturalistically, in the sense that they are inherently value based...
April 21, 2017: Journal of Medicine and Philosophy
https://www.readbyqxmd.com/read/28444251/effect-of-eu-electrical-stunning-conditions-on-breast-meat-quality-of-broiler-chickens
#16
F Sirri, M Petracci, M Zampiga, A Meluzzi
Electrical stunning is still the main stunning method used worldwide in commercial poultry plants. The stunning procedures in water bath stunners affect both bird welfare and meat quality attributes. The European Union (EU) Council Regulation 1099/2009 on the protection of the animal at the time of killing established the minimum current flow through an individual bird at a specified frequency to assure an effective stun that must last until the bird's death. The aim of this study was to compare the effect of the application of different stunning current flows on the prevalence of hemorrhages (classified as 1 = no lesion, 2 = moderate, and 3 = severe lesion) and some quality traits (pHu, color, drip and cooking losses, and shear force) of chicken breast meat...
April 24, 2017: Poultry Science
https://www.readbyqxmd.com/read/28444248/effects-of-various-spacers-between-biotin-and-the-phospholipid-headgroup-on-immobilization-and-sedimentation-of-biotinylated-phospholipid-containing-liposomes-facilitated-by-avidin-biotin-interactions
#17
Yasuhisa Sakamoto, Koji Kikuchi, Kazuaki Umeda, Hiroyuki Nakanishi
Immobilization and sedimentation of liposomes (lipid vesicles) are used in liposome-protein binding assays, facilitated by avidin/streptavidin/NeutrAvidin and biotinylated phospholipid-containing liposomes. Here, we examined the effects of three spacers [six-carbon (X), polyethylene glycol (PEG) 180 (molecular weight 180), and PEG2000 (molecular weight 2000)] between biotin and the phospholipid headgroup on the immobilization and sedimentation of small unilamellar liposomes/vesicles (SUVs). PEG180 and PEG2000 showed more efficient immobilization of biotinylated SUVs on NeutrAvidin-coated plates than X, but X and PEG180 showed more efficient sedimentation of biotinylated SUVs upon NeutrAvidin addition than PEG2000...
April 24, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28444207/characterization-of-relative-biological-effectiveness-for-conventional-radiation-therapy-a-comparison-of-clinical-6-mv-x-rays-and-137cs
#18
Michelle Howard, Chris Beltran, Jann Sarkaria, Michael G Herman
Various types of radiation are utilized in the treatment of cancer. Equal physical doses of different radiation types do not always result in the same amount of biological damage. In order to account for these differences, a scaling factor known as the relative biological effectiveness (RBE) can be used. 137Cesium (137Cs) has been used as a source of radiation in a significant body of radiation therapy research. However, high-energy X-rays, such as 6 MV X-rays, are currently used clinically to treat patients...
April 24, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28444192/from-reproducibility-to-translation-in-neurodegenerative-disease
#19
Caroline J Zeiss
Despite tremendous investment and preclinical success in neurodegenerative disease, effective disease-altering treatments for patients have remained elusive. One highly cited reason for this discrepancy is flawed animal study design and reporting. If this can be broadly remedied, reproducibility of preclinical studies will improve. However, without concurrent efforts to improve generalizability, these improvements may not translate effectively from animal experiments to more complex human neurodegenerative diseases...
April 21, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28444052/healthcare-regions-and-their-care-networks-an-organizational-systemic-model-for-sus
#20
Lenir Santos
This paper describes a comprehensive effort to develop studies regarding Brazil's Unified Healthcare System (SUS), as a result of the combination of public services in a network that follows a region-based rationale (tripartite organization). The SUS emerges from such an integration and should be organized as such. The intention is to demonstrate that this type of organization is essential, given that Brazil is organized as a Federation, and all three governmental levels are, in a broad sense, equally responsible for healthcare...
April 2017: Ciência & Saúde Coletiva
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