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https://www.readbyqxmd.com/read/28213228/smartphone-based-immunosensor-for-ca125-detection
#1
Oana Hosu, Andrea Ravalli, Giuseppe Mattia Lo Piccolo, Cecilia Cristea, Robert Sandulescu, Giovanna Marrazza
In this work, we report the design, the development and the characterization of the analytical performances of a colorimetric smartphone-based immunosensor for the detection of cancer antigen 125 (CA125). The immunosensor was based on a sandwich strategy in which the primary antibody was immobilized by spotting onto the 3D nitrocellulose membrane. The immunospots were subsequently incubated with CA125 solutions, followed by the affinity reaction with a secondary antibody labeled with gold nanoparticles (AuNPs)...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28209514/plasma-metabolite-score-correlates-with-hypoxia-time-in-a-newly-born-piglet-model-for-asphyxia
#2
Julia Kuligowski, Rønnaug Solberg, Ángel Sánchez-Illana, Leonid Pankratov, Anna Parra-Llorca, Guillermo Quintás, Ola Didrik Saugstad, Máximo Vento
Hypoxic-ischemic encephalopathy (HIE) secondary to perinatal asphyxia is a leading cause of mortality and acquired long-term neurologic co-morbidities in the neonate. The most successful intervention for the treatment of moderate to severe HIE is moderate whole body hypothermia initiated within 6h from birth. The objective and prompt identification of infants who are at risk of developing moderate to severe HIE in the critical first hours still remains a challenge. This work proposes a metabolite score calculated based on the relative intensities of three metabolites (choline, 6,8-dihydroxypurine and hypoxanthine) that showed maximum correlation with hypoxia time in a consolidated piglet model for neonatal hypoxia-ischemia...
February 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28209037/-lung-function-influenced-the-prognosis-of-cardiac-surgery-in-patients-with-chronic-obstructive-pulmonary-disease
#3
C T Wu, J H Zhao, D Wei, Y X Shi, G F Zhu
Objective: To investigate the value of lung function for the prognosis of cardiac surgery in patients with chronic obstructive pulmonary disease(COPD). Methods: A retrospective analysis was conducted on the hospitalized patients with coronary heart disease or valvular heart disease in Beijing Anzhen hospital during Janury 2013 to December 2015. The relationship between lung function and extubation time, time of staying in ICU, second time tracheal incubation, tracheotomy and mortality rate were analyzed. Results: There were 355 patients without surgery in a total 1 729 of patients, of which 65 (18...
February 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28208854/polymerase-chain-reaction-an-important-tool-for-early-diagnosis-of-leptospirosis-cases
#4
Summaiya Mullan, Tanvi Harivadanbhai Panwala
INTRODUCTION: Various diagnostic methods like Microscopic Agglutination Test (MAT), IgM ELISA, Isolation of Leptospira from the clinical specimen, Rapid leptocheck tests etc., are available for diagnosis of leptospirosis. Polymerase Chain Reaction (PCR) is used for diagnosis of various diseases of infectious origin including leptospirosis but there is paucity of data about comparison of PCR with other available method of diagnosis of leptospirosis. AIM: The aim of the study was to detect the leptospiral DNA by PCR method and to compare the results of PCR with other available diagnostic methods used for diagnosis of suspected leptospirosis cases in acute phase of illness...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203641/the-antecedents-of-women-s-external-locus-of-control-associations-with-characteristics-of-their-parents-and-their-early-childhood
#5
Jean Golding, Steven Gregory, Yasmin Iles-Caven, Stephen Nowicki
Locus of control (LOC) measures individuals' expectancies regarding their ability to affect what happens to them based on how they behave. The more they believe their behaviour has something to do with what happens to them the more internal they are. In contrast the more they perceive that what happens to them is beyond their control and determined by luck, fate, chance or powerful others the more external they are. Copious research findings suggest that external LOC (ELOC) is associated with many adverse personal, social, academic and health outcomes...
January 2017: Heliyon
https://www.readbyqxmd.com/read/28202072/a-pilot-randomised-controlled-trial-evaluating-mini-and-conventional-implant-retained-dentures-on-the-function-and-quality-of-life-of-patients-with-an-edentulous-mandible
#6
Sarra Jawad, Craig Barclay, William Whittaker, Martin Tickle, Tanya Walsh
BACKGROUND: Total tooth loss (edentulism) can be a debilitating condition, impacting on ability to chew, speak and interact with others. The most common treatment is with complete removable dentures, which may be successful, but in the lower jaw, bone resorption that worsens over time makes denture-wearing difficult. Two dental implants in the mandible to retain the lower denture has been advocated as the gold standard of treatment, but has not been universally provided due largely to financial constraints and also patient fear...
February 15, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28199410/ultrasensitive-detection-of-hiv-1-p24-antigen-by-a-hybrid-nanomechanical-optoplasmonic-platform-with-potential-for-detecting-hiv-1-at-first-week-after-infection
#7
Priscila M Kosaka, Valerio Pini, Montserrat Calleja, Javier Tamayo
Early detection of HIV infection is the best way to prevent spread of the disease and to improve the efficiency of the antiretroviral therapy. Nucleic acid amplification tests (NAAT) have become the gold-standard for detecting low-concentrations of the virus in blood. However, these methods are technically demanding and cost-prohibitive in developing countries. Immunoassays are more affordable and can be more easily adapted for point-of-care diagnosis. However, the sensitivity so far of these methods has been too low...
2017: PloS One
https://www.readbyqxmd.com/read/28197790/surgical-treatment-of-anterior-cranial-fossa-dural-arterio-venous-fistulas-davfs-a-two-centre-experience
#8
Pietro Meneghelli, Alberto Pasqualin, Luigi Andrea Lanterna, Claudio Bernucci, Roberto Spinelli, Gianluigi Dorelli, Piergiuseppe Zampieri
BACKGROUND: Anterior cranial fossa dural arterio-venous fistulas (DAVFs) represent 6% of all intracranial DAVFs; characteristically they show an aggressive behaviour with high risk of intracranial haemorrhage. Peculiar anatomical features, such as feeding by the ethmoidal arteries and the pattern of venous drainage (frequently with varices that mimic aneurysmal dilatation), can be evaluated in detail only by digital subtraction angiography (DSA), which represents the "gold standard" in the diagnosis of such cranial fistulas...
February 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28195383/the-morphological-ultrasound-types-known-as-blob-and-bagel-signs-should-be-reclassified-from-probable-to-definite-ectopic-pregnancy
#9
Batool Nadim, Fernando Infante, Lu Chuan, Nalayini Sathasivam, George Condous
OBJECTIVES: In a recent consensus statement on early pregnancy nomenclature by Barnhart 2011, a definite ectopic pregnancy(EP) was defined morphologically on transvaginal ultrasound (TVS) as an extra-uterine gestational sac(GS) with yolk sac and/or embryo(with or without cardiac activity) whilst a probable EP defined as an inhomogeneous adnexal mass("blob" sign) or extra-uterine sac-like structure("bagel" sign). This study aims to determine whether the ultrasound markers used to define probable EP can be used to predict a definite tubal EP...
February 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28194394/assessment-of-school-readiness-in-chronic-cholestatic-liver-disease-a-pilot-study-examining-children-with-and-without-liver-transplantation
#10
Anna Gold, Alaine Rogers, Elizabeth Cruchley, Stephanie Rankin, Arpita Parmar, Binita M Kamath, Yaron Avitzur, Vicky Lee Ng
Background. Assessment of school readiness evaluates physical, social-emotional, and neuropsychological domains essential for educational success. Cognitive testing of preschool aged children with chronic liver disease may guide more timely interventions and focused efforts by health care providers. Patients and Methods. Children with chronic cholestatic liver disease diagnosed as an infant and still with their native liver (NL) and children who received a liver transplant (LT) before age of 2 years underwent testing with a battery of well-validated pediatric psychometric measures...
2017: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28193072/semiautomated-support-photoelectrochemical-immunosensing-platform-for-portable-and-high-throughput-immunoassay-based-on-au-nanocrystal-decorated-specific-crystal-facets-bivo4-photoanode
#11
Jian Shu, Zhenli Qiu, Zhenzhen Lin, Guoneng Cai, Huanghao Yang, Dianping Tang
Photoelectrochemical (PEC) measurement has been developed rapidly for bioanalysis in recent years. However, the actual application for most existed PEC bioanalytical systems is still a challenge because the perfect solutions for sensing surface design, high-throughput detection, and portability are lacked. To successfully overcome these limitations and realize accurate, continuous screening and assessing on prognostic indicator of early stage cancer on the spot, an innovative and portable semiautomated support power-free photoelectrochemical (SP-PEC) immunosensing platform consisted with a miniature semiautomatic injection system and digital multimeter (DMM) readout is designed (prostate specific antigen, PSA, was used as the proof-of-concept analyte)...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28187733/early-detection-of-copd-patients-in-gold-0-population-an-observational-non-interventional-cohort-study-marko-study
#12
Žarko Vrbica, Marina Labor, Ivan Gudelj, Slavica Labor, Iva Jurić, Davor Plavec
BACKGROUND: Main risk factor for the development of chronic obstructive pulmonary disease (COPD) is smoking, although only less than 1/3 of smokers develop clinically manifest COPD. COPD's progressive nature with high disability and mortality makes it plausible to detect it as early as possible thus allowing for an early intervention. The only tool for an early diagnosis that could be used on the global scale is spirometry, even though symptoms and deprivation of health related quality of life (HRQoL) precede relevant spirometric changes...
February 10, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28186208/preclinical-evaluation-of-bacterially-produced-rsv-g-protein-vaccine-strong-protection-against-rsv-challenge-in-cotton-rat-model
#13
Sandra Fuentes, Laura Klenow, Hana Golding, Surender Khurana
In current study, we evaluated the safety and protective efficacy of recombinant unglycosylated RSV G protein ectodomain produced in E. coli (in presence and absence of oil-in-water adjuvant) in a preclinical RSV susceptible cotton rat challenge model compared to formaldehyde inactivated RSV (FI-RSV) and live RSV experimental infection. The adjuvanted G protein vaccine induced robust neutralization antibody responses comparable to those generated by live RSV infection. Importantly, adjuvanted G protein significantly reduced viral loads in both the lungs and nose at early time points following viral challenge...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28184152/drug-delivery-in-overcoming-the-blood-brain-barrier-role-of-nasal-mucosal-grafting
#14
REVIEW
Carlotta Marianecci, Federica Rinaldi, Patrizia Nadia Hanieh, Luisa Di Marzio, Donatella Paolino, Maria Carafa
The blood-brain barrier (BBB) plays a fundamental role in protecting and maintaining the homeostasis of the brain. For this reason, drug delivery to the brain is much more difficult than that to other compartments of the body. In order to bypass or cross the BBB, many strategies have been developed: invasive techniques, such as temporary disruption of the BBB or direct intraventricular and intracerebral administration of the drug, as well as noninvasive techniques. Preliminary results, reported in the large number of studies on the potential strategies for brain delivery, are encouraging, but it is far too early to draw any conclusion about the actual use of these therapeutic approaches...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28183347/application-of-incident-command-structure-to-clinical-trial-management-in-the-academic-setting-principles-and-lessons-learned
#15
Penny S Reynolds, Mary J Michael, Bruce D Spiess
BACKGROUND: Clinical trial success depends on appropriate management, but practical guidance to trial organisation and planning is lacking. The Incident Command System (ICS) is the 'gold standard' management system developed for managing diverse operations in major incident and public health arenas. It enables effective and flexible management through integration of personnel, procedures, resources, and communications within a common hierarchical organisational structure. Conventional ICS organisation consists of five function modules: Command, Planning, Operations, Logistics, and Finance/Administration...
February 9, 2017: Trials
https://www.readbyqxmd.com/read/28182976/ultrasensitive-electrochemical-immunosensor-for-quantitative-detection-of-scca-using-co3o4-ceo2-au-pt-nanocomposite-as-enzyme-mimetic-labels
#16
Yueyun Li, Yihe Zhang, Faying Li, Jinhui Feng, Mingdang Li, Lei Chen, Yunhui Dong
Recently early diagnosis of squamous cell carcinoma antigen (SCCA) as a tumor maker of various cancers has increasingly attracted a lot of attention with heightening of incidence rate of cancer. The SCCA with low concentration in human serum should be diluted before detecting. Thus, an immunoassay with high sensitivity is significant for early detecting SCCA. Therefore, a nonenzymatic sandwich-type electrochemical immunosensor herein was conducted to quantitative detection of squamous cell carcinoma antigen (SCCA)...
January 31, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28182555/comparative-validation-of-polyp-detection-methods-in-video-colonoscopy-results-from-the-miccai-2015-endoscopic-vision-challenge
#17
Jorge Bernal, Nima Tajbakhsh, F Javier Sanchez, Bogdan J Matuszewski, Hao Chen, Lequan Yu, Quentin Angermann, Olivier Romain, Bjorn Rustad, Ilangko Balasingham, Konstantin Pogorelov, Sungbin Choi, Quentin Debard, L Maier-Hein, Stefanie Speidel, Danail Stoyanov, Patrick Brandao, Henry Cordova, Cristina Sanchez-Montes, Suryakanth R Gurudu, Gloria Fernandez-Esparrach, Xavier Dray, Jianming Liang, Aymeric Histace
Colonoscopy is the gold standard for colon cancer screening though still some polyps are missed, thus preventing early disease detection and treatment. Several computational systems have been proposed to assist polyp detection during colonoscopy but so far without consistent evaluation. The lack of publicly available annotated databases has made it difficult to compare methods and to assess if they achieve performance levels acceptable for clinical use. The Automatic Polyp Detection subchallenge, conducted as part of the Endoscopic Vision Challenge (http://endovis...
February 2, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28176349/early-detection-and-curative-treatment-of-hepatocellular-carcinoma-a-cost-effectiveness-analysis-in-france-and-in-the-united-states
#18
Benjamin Cadier, Julie Bulsei, Pierre Nahon, Olivier Seror, Alexis Laurent, Isabelle Rosa, Richard Layese, Charlotte Costentin, Carole Cagnot, Isabelle Durand-Zaleski, Karine Chevreul
: Hepatocellular carcinoma (HCC) is the leading cause of death in patients with cirrhosis. Patients outside clinical trials seldom benefit from evidence-based monitoring. The objective of this study was to estimate the cost-effectiveness of complying with HCC screening guidelines. The economic evaluation compared surveillance of patients with cirrhosis as recommended by the guidelines ("gold-standard monitoring") to "real-life monitoring" from the health care system perspective. A Markov model described the history of the disease and treatment course including current first-line curative treatment: liver resection, radiofrequency ablation (RFA), and liver transplantation...
February 8, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28169940/role-of-posterior-stabilization-and-transpedicular-decompression-in-the-treatment-of-thoracic-and-thoracolumbar-tb-a-retrospective-evaluation
#19
Areena R D'souza, Bibhudendu Mohapatra, Murari L Bansal, Kalidutta Das
STUDY DESIGN: A retrospective study. OBJECTIVE: To evaluate the results of posterior pedicle-screw fixation with transpedicular decompression in 21 cases of thoracic and thoracolumbar spinal tuberculosis (TB) in terms of functional, neurological, and radiologic outcomes. SUMMARY OF BACKGROUND DATA: Spinal TB is predominantly an anterior disease that can lead to kyphotic deformity. Hence, anterior debridement and fusion was considered as the gold standard...
February 6, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28166609/modulating-immunogenicity-of-factor-ix-by-fusion-to-an-immunoglobulin-fc-domain-a-study-using-hemophilia-b-mouse-model
#20
Ditza Levin, H A Daniel Lagassé, Erin Burch, Scott Strome, Siyuan Tan, Haiyan Jiang, Zuben E Sauna, Basil Golding
BACKGROUND: Fc-fusion is a platform technology used to increase the circulating half-life of protein and peptide therapeutics. However, there are potential immunological consequences with this approach, such as changes in the molecule's immunogenicity as well as possible interactions with a repertoire of Fc-receptors (FcR) which can modulate immune responses. OBJECTIVES/METHODS: Using a mouse hemophilia B (HB) model, we compared the immune responses to infusions of recombinant human Factor IX (hFIX) and hFIX fused to mouse IgG2a-Fc (hFIX-mFc)...
February 6, 2017: Journal of Thrombosis and Haemostasis: JTH
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