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https://www.readbyqxmd.com/read/28646948/generalized-herd-effects-and-vaccine-evaluation-impact-of-live-influenza-vaccine-on-off-target-bacterial-colonisation
#1
Michael J Mina
Interactions between pathogens and commensal microbes are major contributors to health and disease. Infectious diseases however are most often considered independent, viewed within a one-host one-pathogen paradigm and, by extension, the interventions used to treat and prevent them are measured and evaluated within this same paradigm. Vaccines, especially live vaccines, by stimulating immune responses or directly interacting with other microbes can alter the environment in which they act, with effects that span across pathogen species...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28645945/how-can-we-ensure-that-the-coroner-s-autopsy-is-not-an-invasion-of-human-rights
#2
Stephen Leadbeatter, Ryk James
BACKGROUND: Despite public inquiries, and some changes to legislation following high-profile multiple homicides that were not detected by autopsy, coroners continue to rely largely on the autopsy. Regardless of the extent of quality failings and excess deaths at some hospitals, not detected through the coroner system, the autopsy is scarcely used by hospitals to monitor standards and educate. OBJECTIVE: To explore when a compulsory medicolegal autopsy should, and should not, be used...
June 23, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28643316/-endoscopic-metallic-stent-followed-by-elective-laparoscopic-surgery-for-malignant-colorectal-obstruction
#3
Qingping Lu, Qilong Lan, Long Chen, Dongbo Xu, Jun Li, Shuangmin Lin, Changrong Que, Jianxun Chen
OBJECTIVE: To investigate the feasibility of endoscopic metallic stent as a bridge to elective laparoscopic surgery in patients with malignant colorectal obstruction. METHODS: Clinical data of 63 patients with obstructive colorectal cancer who underwent endoscopic metallic stent insertion under radiologic monitoring at the Longyan First Hospital between June 2012 and August 2016 were analyzed retrospectively. After complete remission of the obstruction, all the patients received multi-disciplinary team (MDT) evaluation to make the further treatment strategy...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28642581/molecular-methods-to-detect-spodoptera-frugiperda-in-ghana-and-implications-for-monitoring-the-spread-of-invasive-species-in-developing-countries
#4
Matthew J W Cock, Patrick K Beseh, Alan G Buddie, Giovanni Cafá, Jayne Crozier
Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) is a polyphagous pest indigenous throughout the Americas, which recently appeared in Africa, first reported from São Tomé, Nigeria, Bénin and Togo in 2016, and which we now report from Ghana. This species is recognised to comprise two morphologically identical but genetically distinct strains or species in the Americas, and we found both to be present in Ghana. We discuss possible routes of entry to Africa, of which the likeliest is adults and/or egg masses transported on direct commercial flights between the Americas and West Africa, followed by dispersal by adult flight within Africa...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642288/ferumoxytol-enhanced-magnetic-resonance-imaging-assessing-inflammation-after-myocardial-infarction
#5
Colin G Stirrat, Shirjel R Alam, Thomas J MacGillivray, Calum D Gray, Marc R Dweck, Jennifer Raftis, William Sa Jenkins, William A Wallace, Renzo Pessotto, Kelvin Hh Lim, Saeed Mirsadraee, Peter A Henriksen, Scott Ik Semple, David E Newby
OBJECTIVES: Macrophages play a central role in the cellular inflammatory response to myocardial infarction (MI) and predict subsequent clinical outcomes. We aimed to assess temporal changes in cellular inflammation and tissue oedema in patients with acute MI using ultrasmallsuperparamagnetic particles of iron oxide (USPIO)-enhanced MRI. METHODS: Thirty-one patients were recruited following acute MI and followed up for 3 months with repeated T2 and USPIO-enhanced T2*-mapping MRI...
June 22, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28641331/-surgical-treatment-of-pseudotumours-of-the-lung
#6
Zsolt Sziklavari, Annete Droste, Reiner Neu, Hans-Stefan Hofmann, Michael Ried
Introduction Pseudotumour of the lung is a collective term for various subentities. Some subgroups are considered to be intermediary malignant tumours. A pseudotumour is a rare condition, which makes it difficult to estimate its incidence and prevalence. Methods Retrospective analysis of all surgically treated patients between 2008 and 2015 diagnosed with a pseudotumour of the lung. The primary endpoint of this study was to estimate the rates of local recurrence and metastasis. Secondary endpoints were to determine the nomenclature, medical history, treatment, and the perioperative course...
June 22, 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28641244/computerized-lung-sound-screening-for-pediatric-auscultation-in-noisy-field-environments
#7
Dimitra Emmanouilidou, Eric D McCollum, Daniel E Park, Mounya Elhilali
GOAL: Chest auscultations offer a non-invasive and low-cost tool for monitoring lung disease. However, they present many shortcomings including inter-listener variability, subjectivity, and vulnerability to noise and distortions. The current work proposes a computer-aided approach to process lung signals acquired in the field under adverse noisy conditions, by improving the signal quality and offering automated iden- tification of abnormal auscultations indicative of respiratory pathologies...
June 19, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28641094/emerging-concepts-in-cytomegalovirus-infection-following-hematopoietic-stem-cell-transplantation
#8
REVIEW
Jose F Camargo, Krishna V Komanduri
Despite the refinements in molecular methods for the detection of cytomegalovirus (CMV) and the advent of highly effective preemptive strategies, CMV remains a leading cause of morbidity and mortality in hematopoietic cell transplant (HCT) recipients. CMV can cause tissue-invasive disease including pneumonia, hepatitis, colitis, retinitis, and encephalitis. Mortality in HCT recipients with CMV disease can be as high as 60%. CMV infection has been associated with increased risk of secondary bacterial and fungal infections, increased risk of graft-versus-host disease, and high rates of nonrelapse mortality following HCT...
June 14, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28640773/salivary-mitochondrial-dna-copy-number-is-associated-with-exercise-ventilatory-efficiency
#9
Yang Chen, Helene Z Hill, Gudrun Lange, Michael J Falvo
Chen, Y, Hill, HZ, Lange, G, and Falvo, MJ. Salivary mitochondrial DNA copy number is associated with exercise ventilatory efficiency. J Strength Cond Res 31(7): 2000-2004, 2017-Mitochondrial DNA copy number (mtDNAcn) is an index of mitochondrial content and is responsive to changes in exercise training volume. Therefore, assessment of mtDNAcn may help to optimize exercise prescription and aid in athlete monitoring. Although previous work has assessed mtDNAcn derived from skeletal muscle and blood using invasive approaches, no study has examined salivary mtDNAcn and its relationship with sport performance...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28638436/in-vivo-label-free-mapping-of-the-effect-of-a-photosystem-ii-inhibiting-herbicide-in-plants-using-chlorophyll-fluorescence-lifetime
#10
Elizabeth Noble, Sunil Kumar, Frederik G Görlitz, Chris Stain, Chris Dunsby, Paul M W French
BACKGROUND: In order to better understand and improve the mode of action of agrochemicals, it is useful to be able to visualize their uptake and distribution in vivo, non-invasively and, ideally, in the field. Here we explore the potential of plant autofluorescence (specifically chlorophyll fluorescence) to provide a readout of herbicide action across the scales utilising multiphoton-excited fluorescence lifetime imaging, wide-field single-photon excited fluorescence lifetime imaging and single point fluorescence lifetime measurements via a fibre-optic probe...
2017: Plant Methods
https://www.readbyqxmd.com/read/28638252/evaluation-of-the-ki-67-proliferation-index-and-urocortin-expression-in-women-with-ovarian-endometriomas
#11
Serenat Eris Yalcin, Irfan Ocal, Yakup Yalcin, Halime Sen Selim, Melike Demir Caltekin, Huseyin Aydogmus, Sefa Kelekci
OBJECTIVE: The reasons why endometriosis is more aggressive and invasive in some patients are unknown. Despite the importance of population-based clinically defined risk factors in the prediction of recurrence, biochemical markers obtained from the patient are more valuable for prediction on an individual basis. Therefore, the discovery of significant potential biomarkers could be useful to clinicians for shedding light on the pathogenesis of endometriosis and in the monitoring recurrence...
June 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28636889/complications-of-hematopoietic-stem-transplantation-fungal-infections
#12
REVIEW
Ali S Omrani, Reem S Almaghrabi
Patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) are at increased risk of invasive fungal infections, especially during the early neutropenic phase and severe graft-versus-host disease. Mold-active prophylaxis should be limited to the highest risk groups. Empiric antifungal therapy for HSCT with persistent febrile neutropenia is associated with unacceptable response rates, unnecessary antifungal therapy, increased risk of toxicity, and inflated costs. Empiric therapy should not be a substitute for detailed work up to identify the cause of fever in such patients...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28636767/aberrant-expression-of-kallikrein-related-peptidase-7-is-correlated-to-human-melanoma-aggressiveness-by-stimulating-cell-migration-and-invasion
#13
Tiphaine Delaunay, Lydia Deschamps, Meriem Haddada, Francine Walker, Antoninus Soosaipillai, Feryel Soualmia, Chahrazade El Amri, Eleftherios P Diamandis, Maria Brattsand, Viktor Magdolen, Dalila Darmoul
Members of the tissue kallikrein-related peptidase (KLK) family not only regulate several important physiological functions, but aberrant expression has also been associated with various malignancies. Clinically, KLKs have been suggested as promising biomarkers for diagnosis and prognosis in many types of cancer. As of yet, expression of KLKs and their role in skin cancers are, however, poorly addressed. Malignant melanoma is an aggressive disease associated with poor prognosis. Hence, diagnostic biomarkers to monitor melanoma progression are needed...
June 21, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28636544/analysis-of-esr1-and-pik3ca-mutations-in-plasma-cell-free-dna-from-er-positive-breast-cancer-patients
#14
Takashi Takeshita, Yutaka Yamamoto, Mutsuko Yamamoto-Ibusuki, Mai Tomiguchi, Aiko Sueta, Keiichi Murakami, Yoko Omoto, Hirotaka Iwase
BACKGROUND: The measurement of ESR1 and PIK3CA mutations in plasma cell-free DNA (cfDNA) has been studied as a non-invasive method to quickly assess and monitor endocrine therapy (ET) resistant metastatic breast cancer (MBC) patients. METHODS: The subjects of this retrospective study were a total of 185 plasma samples from 86 estrogen receptor-positive BC patients, of which 151 plasma samples were from 69 MBC patients and 34 plasma samples were from 17 primary BC (PBC) patients...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636537/metabolic-pathway-for-the-universal-fluorescent-recognition-of-tumor-cells
#15
Ana Fernandez-Carrascal, Manuel Garcia-Algar, Moritz Nazarenus, Alicia Torres-Nuñez, Luca Guerrini, Neus Feliu, Wolfgang J Parak, Eduardo Garcia-Rico, Ramon A Alvarez-Puebla
Quantification of circulating tumor cells (CTCs) in blood samples from cancer patients is a non-invasive approach to monitoring the status of the disease. Most of the methods proposed in the recent years are phenomenological and rely on the use of antibodies labelled with fluorophores, magnetic particles, or immobilized on surfaces to capture the CTCs. Herein, we designed and optimized a method that employs a glucose analogue labelled with a fluorophore which takes advantage of the different metabolic pathways of cancer cells to discern them from normal ones...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28635619/on-the-importance-of-accurate-quantification-of-individual-volatile-metabolites-in-exhaled-breath
#16
David Smith, Patrik Spanel
It is argued that shortcomings of certain approaches to breath analysis research based on superficial interpretation of non-quantitative data are inadvertently inhibiting the progression of non-invasive breath analysis into clinical practice. The objective of this perspective is to suggest more clinically profitable approaches to breath research. Thus, following a discourse on the challenges and expectations in breath research, a brief indication is given of the analytical techniques currently used for the analysis of very humid exhaled breath...
June 21, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28635172/doxorubicin-kinetics-and-effects-on-lung-cancer-cell-lines-using-in-vitro-raman-micro-spectroscopy-binding-signatures-drug-resistance-and-dna-repair
#17
Zeineb Farhane, Franck Bonnier, Orla Howe, Alan Casey, Hugh J Byrne
Raman micro-spectroscopy is a non-invasive analytical tool, whose potential in cellular analysis and monitoring drug mechanisms of action has already been demonstrated, and which can potentially be used in pre-clinical and clinical applications for the prediction of chemotherapeutic efficacy. To further investigate such potential clinical application, it is important to demonstrate its capability to differentiate drug mechanisms of action and cellular resistances. Using the example of Doxorubicin (DOX), in this study, it was used to probe the cellular uptake, signatures of chemical binding and subsequent cellular responses, of the chemotherapeutic drug in two lung cancer cell lines, A549 and Calu-1...
June 21, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28634614/detection-of-the-circulating-tumor-dnas-in-angioimmunoblastic-t-cell-lymphoma
#18
Mamiko Sakata-Yanagimoto, Rie Nakamoto-Matsubara, Daisuke Komori, Tran B Nguyen, Keiichiro Hattori, Toru Nanmoku, Takayasu Kato, Naoki Kurita, Yasuhisa Yokoyama, Naoshi Obara, Yuichi Hasegawa, Atsushi Shinagawa, Shigeru Chiba
Recent genetic studies identified that the disease-specific G17V RHOA mutation, together with mutations in TET2, DNMT3A, and IDH2, is a hallmark of angioimmunoblastic T cell lymphomas (AITL). The diagnostic value of these mutations is now being investigated. Circulating tumor DNAs (ctDNAs) may offer a non-invasive testing for diagnosis and disease monitoring of cancers. To investigate whether these mutations are useful markers for ctDNAs in AITL and its related lymphomas, we performed targeted sequencing for TET2, RHOA, DNMT3A, and IDH2 in paired tumors and cell-free DNAs from 14 patients at diagnosis...
June 20, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28632796/handheld-reflectance-confocal-microscopy-to-aid-in-the-management-of-complex-facial-lentigo-maligna
#19
Brian P Hibler, Oriol Yélamos, Miguel Cordova, Heidy Sierra, Milind Rajadhyaksha, Kishwer S Nehal, Anthony M Rossi
Diagnosis and management of lentigo maligna (LM) and LM melanoma (LMM) is challenging. Novel noninvasive imaging technologies such as reflectance confocal microscopy (RCM) have advanced the ability to better diagnose and monitor challenging lesions. In addition, the new handheld RCM (HRCM) together with the use of videomosaics has allowed an accurate evaluation of large lesions in concave/convex areas of the body (eg, the face). Herein, we review the impact of HRCM in the detection, treatment decision-making, and monitoring of 5 cases of complex facial LM/LMM...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28632534/administration-of-tetrahydrobiopterin-bh4-protects-the-renal-microcirculation-from-ischemia-and-reperfusion-injury
#20
Lokmane Rahmania, Diego Orbegozo, Fuhong Su, Fabio Silvio Taccone, Jean-Louis Vincent, Daniel De Backer
BACKGROUND: Abdominal aortic aneurysm surgery with suprarenal cross-clamping is often associated with renal injury. Although the mechanism underlying such injury is unclear, tissue ischemia and reperfusion, which induces endothelial dysfunction and decreases the availability of tetrahydrobiopterin (BH4), may play a role. We evaluated whether BH4 administration prevents renal ischemia/reperfusion injury in an animal model of aortic cross-clamping. METHODS: Nineteen anesthetized, mechanically ventilated, and invasively monitored adult sheep were randomized into 3 groups: sham animals (n = 5) that underwent surgical preparation but no aortic clamping; an ischemia/reperfusion group (n = 7), where the aorta was clamped above the renal arteries for 1 hour, and a BH4 group (n = 7), in which animals received 20 mg/kg of BH4 followed by aortic cross-clamp for 1 hour...
June 17, 2017: Anesthesia and Analgesia
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