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https://www.readbyqxmd.com/read/27926790/molecular-surveillance-of-dengue-in-minas-gerais-provides-insights-on-dengue-virus-1-and-4-circulation-in-brazil
#1
Karina Rocha Dutra, Betânia Paiva Drumond, Izabela Maurício de Rezende, Maurício Lacerda Nogueira, Débora de Oliveira Lopes, Carlos Eduardo Calzavara Silva, Jaqueline Maria Siqueira Ferreira, Luciana Lara Dos Santos
Dengue, caused by any of the four types of Dengue virus (DENV) is the most important arbovirus in the world. In this study we performed a molecular surveillance of dengue during the greatest dengue outbreak that took place in Divinópolis, Minas Gerais state, Southeast Brazil, in 2013. Samples from 100 patients with clinical symptoms of dengue were studied and 26 were positive. The capsid/premembrane (CprM) and envelope gene sequences of some samples were amplified and sequenced. Molecular analyses demonstrated that two DENV-1 lineages, belonging to genotype V were introduced and co-circulated in Divinópolis...
November 5, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27924611/quantitative-real-time-gene-profiling-of-human-alveolar-osteoblasts
#2
Dawn E Coates, Sobia Zafar, Trudy J Milne
The use of quantitative real-time reverse transcriptase PCR (qRT(2)-PCR) for the identification of differentially regulated genes is a powerful technology. The protocol presented here uses qRT(2)-PCR gene arrays to investigate the regulation of 84 angiogenic related genes in human primary alveolar osteoblasts following treatment with the bisphosphonate, zoledronic acid (ZA), and geranylgeraniol (GGOH). GGOH has potential as a therapeutic agent for Bisphosphate-Related Osteonecrosis of the Jaw (BRONJ), a serious side-effect resulting from the treatment for metastatic cancer (Zafar et al...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27923422/first-responders-and-prehospital-care-for-road-traffic-injuries-in-malawi
#3
Linda Chokotho, Wakisa Mulwafu, Isaac Singini, Yasin Njalale, Limbika Maliwichi-Senganimalunje, Kathryn H Jacobsen
: Introduction Road traffic collisions are a common cause of injuries and injury-related deaths in sub-Saharan Africa (SSA). Basic prehospital care can be the difference between life and death for injured drivers, passengers, and pedestrians. Problem This study examined the challenges associated with current first response practices in Malawi. METHODS: In April 2014, focus groups were conducted in two areas of Malawi: Karonga (in the Northern Region) and Blantyre (in the Southern Region; both are along the M1 highway), and a qualitative synthesis approach was used to identify themes...
December 7, 2016: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/27920704/autoimmune-hemolytic-anemia-as-a-complication-of-nivolumab-therapy
#4
Amruth R Palla, Devin Kennedy, Hossain Mosharraf, Donald Doll
Recently, immunotherapeutic drugs, including PD-1 inhibitors (nivolumab, pembrolizumab), PD-L1 inhibitors (atezolizumab, avelumab), and CTLA4 inhibitors (ipiliumumab), have emerged as important additions to the armamentarium against certain malignancies and have been incorporated into therapeutic protocols for first-, second-, or third-line agents for these metastatic cancers. Immune checkpoint inhibitor nivolumab is currently FDA approved for the treatment of patients with metastatic malignant melanoma [Redman et al...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27920018/a-phase-ii-randomized-placebo-controlled-trial-of-oral-n-acetylcysteine-for-protection-of-melanocytic-nevi-against-uv-induced-oxidative-stress-in-vivo
#5
Pamela B Cassidy, Tong Liu, Scott R Florell, Matthew Honeggar, Sancy A Leachman, Kenneth M Boucher, Douglas Grossman
Oxidative stress plays a role in UV-induced melanoma, which may arise from melanocytic nevi. We investigated whether oral administration of the antioxidant N-acetylcysteine (NAC) could protect nevi from oxidative stress in vivo in the setting of acute UV exposure. The minimal erythemal dose (MED) was determined for 100 patients at increased risk for melanoma. Patients were randomized to receive a single dose (1,200 mg) of NAC or placebo, in double-blind fashion, and then one nevus was irradiated (1-2 MED) using a solar simulator...
December 5, 2016: Cancer Prevention Research
https://www.readbyqxmd.com/read/27919762/minimally-invasive-transforaminal-lumbar-interbody-fusion-versus-percutaneous-endoscopic-lumbar-discectomy-revision-surgery-for-the-recurrent-herniation-after-microendoscopic-discectomy
#6
Yuan Yao, Huiyu Zhang, Junlong Wu, Huan Liu, Zhengfeng Zhang, Yu Tang, Yue Zhou
BACKGROUND: Most patients suffering from the recurrence of microendoscopic discectomy (MED) need to receive revision surgery. Minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) and percutaneous endoscopic lumbar discectomy (PELD) are common operative methods for MED recurrence, whereas no study has been made to compare the clinical outcomes of these two surgical methods as revision surgery for MED recurrence. METHODS: 105 patients who underwent either MIS-TLIF (58 cases) or PELD (47 cases) for revision of MED recurrence were included in this study...
December 2, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27918839/clinical-utility-of-bronchoalveolar-lavage-cytomegalovirus-viral-loads-in-the-diagnosis-of-cytomegalovirus-pneumonitis-in-infants
#7
Kerusha Govender, Prakash Jeena, Raveen Parboosing
Cytomegalovirus (CMV) pneumonitis is a significant cause of morbidity and mortality of children in Africa. The current practice for diagnosing CMV pneumonitis in this setting is based on interpretation of clinical, laboratory, and radiological findings. There is a need for a sensitive and specific laboratory test to objectively distinguish between patients with CMV pneumonitis and those with CMV infection, and non-CMV pneumonia. In this study, we compared plasma and non-bronchoscopic bronchoalveolar lavage (NBBAL) CMV viral loads in patients with CMV pneumonitis and those with CMV infection and non-CMV pneumonia...
November 5, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27918221/neutrophilic-inflammation-in-asthma-mechanisms-and-therapeutic-considerations
#8
Hun Soo Chang, Tae-Hyeong Lee, Ji Ae Jun, Ae Rin Baek, Jong-Sook Park, So My Koo, Yang-Ki Kim, Ho Sung Lee, Choon-Sik Park
Neutrophilic airway inflammation represents a pathologically distinct form of asthma and frequently appears in symptomatic adulthood asthmatics. However, clinical impacts and mechanisms of the neutrophilic inflammation have not been thoroughly evaluated up to date. Areas covered: Currently, distinct clinical manifestations, triggers, and molecular mechanisms of the neutrophilic inflammation (namely Toll-like receptor, Th1, Th17, inflammasome) are under investigation in asthma. Furthermore, possible role of the neutrophilic inflammation is being investigated in respect to the airway remodeling...
December 5, 2016: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/27917728/comparing-catheter-associated-urinary-tract-infection-prevention-programs-between-veterans-affairs-nursing-homes-and-non-veterans-affairs-nursing-homes
#9
Lona Mody, M Todd Greene, Sanjay Saint, Jennifer Meddings, Barbara W Trautner, Heidi L Wald, Christopher Crnich, Jane Banaszak-Holl, Sara E McNamara, Beth J King, Robert Hogikyan, Barbara S Edson, Sarah L Krein
OBJECTIVE The impact of healthcare system integration on infection prevention programs is unknown. Using catheter-associated urinary tract infection (CAUTI) prevention as an example, we hypothesize that US Department of Veterans Affairs (VA) nursing homes have a more robust infection prevention infrastructure due to integration and centralization compared with non-VA nursing homes. SETTING VA and non-VA nursing homes participating in the AHRQ Safety Program for Long-Term Care collaborative. METHODS Nursing homes provided baseline information about their infection prevention programs to assess strengths and gaps related to CAUTI prevention via a needs assessment questionnaire...
December 5, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27917529/accuracy-precision-and-reproducibility-of-myocardial-t1-mapping-a-comparison-of-four-t1-estimation-algorithms-for-modified-look-locker-inversion-recovery-molli
#10
Jiaxin Shao, Dapeng Liu, Kyunghyun Sung, Kim-Lien Nguyen, Peng Hu
PURPOSE: To compare the accuracy and precision of four different T1 estimation algorithms for modified Look-Locker inversion recovery (MOLLI). METHODS: Four T1 estimation algorithms, including the original fit, inversion group (IG) fit, instantaneous signal loss simulation (InSiL), and Bloch equation simulation with slice profile correction (BLESSPC) were studied. T1 estimation accuracy, precision, reproducibility, and sensitivity to heart rate (HR), flip angle (FA), and acquisition scheme (AcS) variations were compared in simulation, phantom, and volunteer studies...
December 4, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27917528/the-ultimate-signal-to-noise-ratio-in-realistic-body-models
#11
Bastien Guérin, Jorge F Villena, Athanasios G Polimeridis, Elfar Adalsteinsson, Luca Daniel, Jacob K White, Lawrence L Wald
PURPOSE: We compute the ultimate signal-to-noise ratio (uSNR) and G-factor (uGF) in a realistic head model from 0.5 to 21 Tesla. METHODS: We excite the head model and a uniform sphere with a large number of electric and magnetic dipoles placed at 3 cm from the object. The resulting electromagnetic fields are computed using an ultrafast volume integral solver, which are used as basis functions for the uSNR and uGF computations. RESULTS: Our generalized uSNR calculation shows good convergence in the sphere and the head and is in close agreement with the dyadic Green's function approach in the uniform sphere...
December 4, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27917527/simultaneous-orthogonal-plane-imaging
#12
Nikolai J Mickevicius, Eric S Paulson
PURPOSE: Intrafraction motion can result in a smearing of planned external beam radiation therapy dose distributions, resulting in an uncertainty in dose actually deposited in tissue. The purpose of this paper is to present a pulse sequence that is capable of imaging a moving target at a high frame rate in two orthogonal planes simultaneously for MR-guided radiotherapy. THEORY: By balancing the zero gradient moment on all axes, slices in two orthogonal planes may be spatially encoded simultaneously...
December 4, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27917520/sensitive-enhancement-of-vessel-wall-imaging-with-an-endoesophageal-wireless-amplified-nmr-detector-wand
#13
Xianchun Zeng, Mladen Barbic, Liangliang Chen, Chunqi Qian
PURPOSE: To improve the imaging quality of vessel walls with an endoesophageal Wireless Amplified NMR Detector (WAND). METHODS: A cylindrically shaped double-frequency resonator has been constructed with a single metal wire that is self-connected by a pair of nonlinear capacitors. The double-frequency resonator can convert wirelessly provided pumping power into amplified MR signals. This compact design makes the detector easily insertable into a rodent esophagus...
December 4, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27916775/a-case-report-of-adenosquamous-cell-carcinoma-of-the-duodenal-papilla
#14
Yuki Segi, Akira Hashimoto, Hiroki Yukimoto, Naohiko Yoshizawa, Masatoshi Aoki, Hiroyuki Fuke, Hiroyuki Kawabata, Atsuya Shimizu, Ken Ichikawa, Hiroshi Nakano
Adenosquamous carcinoma of the duodenal papilla is rare. A 73-year-old man was referred to the Saiseikai-Matsusaka General Hospital with upper abdominal pain and liver dysfunction. Computed tomography (CT) revealed dilatation of the common bile duct (CBD) and intrahepatic bile duct along with a tumor in the distal CBD. The tumor showed enhancement in the arterial phase on contrast-enhanced CT. We performed endoscopic retrograde cholangiopancreatography and noted a red, erosive, bleeding mass in the duodenal papilla with obstruction of the distal CBD, and dilatation of the CBD...
2016: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/27916482/-evaluation-of-chronic-obstructive-pulmonary-disease-copd-and-reduced-ejection-fraction-heart-failure-hfref-discharge-medication-prescribing-is-drug-therapy-concordant-with-national-guidelines-associated-with-a-reduction-in-30-day-readmissions-respir-med-119
#15
Amy Richardson, Elizabeth Tolley, Jonathan Hartmann, Jasmine Reedus, Brandi Bowlin, Christopher Finch, Christopher W Sands, Timothy Self
No abstract text is available yet for this article.
December 1, 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27914088/murine-mycobacterium-marinum-infection-as-a-model-for-tuberculosis
#16
Julia Lienard, Fredric Carlsson
Mycobacteria are a major human health problem globally. Regarding tuberculosis the situation is worsened by the poor efficacy of current vaccine regimens and by emergence of drug-resistant strains (Manjelievskaia J et al, Trans R Soc Trop Med Hyg 110: 110, 2016; Pereira et al., Lancet Infect Dis 12:300-306, 2012; http://www.who.int/tb/publications/global_report/en/) undermining both disease-prevention and available treatments. Thus, increased basic understanding of mycobacterial-and particularly Mycobacterium tuberculosis-virulence strategies and pathogenesis is of great importance...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27912037/avalanche-accidents-causing-fatalities-are-they-any-different-in-the-summer
#17
Mathieu Pasquier, Olivier Hugli, Alexandre Kottmann, Frank Techel
: Pasquier, Mathieu, Olivier Hugli, Alexandre Kottmann, and Frank Techel. Avalanche accidents causing fatalities: are they any different in the summer? High Alt Med Biol. 16:000-000, 2016. AIMS: This retrospective study investigated the epidemiology of summer avalanche accidents that occurred in Switzerland and caused at least one fatality between 1984 and 2014. Summer avalanche accidents were defined as those that occurred between June 1st and October 31st. RESULTS: Summer avalanches caused 21 (4%) of the 482 avalanches with at least one fatality occurring during the study period, and 40 (6%) of the 655 fatalities...
December 2, 2016: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/27910821/reply-to-comment-on-imaging-of-prompt-gamma-rays-emitted-during-delivery-of-clinical-proton-beams-with-a-compton-camera-feasibility-studies-for-range-verification
#18
Jerimy C Polf, Stephen Avery, Dennis S Mackin, Sam Beddar
A reply is provided to the points raised in the comment by Dr Sitek (2016 Phys. Med. Biol. 61 8941) on Polf et al (2015 Phys. Med. Biol. 60 7085).
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27910819/comment-on-imaging-of-prompt-gamma-rays-emitted-during-delivery-of-clinical-proton-beams-with-a-compton-camera-feasibility-studies-for-range-verification
#19
Arkadiusz Sitek
The origin ensemble (OE) algorithm is a new method used for image reconstruction from nuclear tomographic data. The main advantage of this algorithm is the ease of implementation for complex tomographic models and the sound statistical theory. In this comment, the author provides the basics of the statistical interpretation of OE and gives suggestions for the improvement of the algorithm in the application to prompt gamma imaging as described in Polf et al (2015 Phys. Med. Biol. 60 7085).
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27910126/gradient-echo-epi-using-a-high-degree-shim-insert-coil-at-7%C3%A2-t-implications-for-bold-fmri
#20
Tae Kim, Yoojin Lee, Tiejun Zhao, Hoby P Hetherington, Jullie W Pan
PURPOSE: To quantitatively assess the effects of high degree and order (1(st) -4(th+) ) relative to 1(st) -2(nd) degree B0 shimming at 7 Tesla (T) on gradient-echo echo planar imaging (GE-EPI) and blood-oxygen-level dependent (BOLD) activation. METHODS: Simulations and GE-EPI were performed at (2mm)(3) and (3mm)(3) resolution, evaluating the temporal signal-to-noise ratio (tSNR), transverse relaxivity ( R2*), BOLD % signal change and activated pixel counts in a breath-hold task...
December 1, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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