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https://www.readbyqxmd.com/read/28437822/osmotic-demyelination-syndrome-due-to-severe-hyponatremia-mimicking-hypoxic-encephalopathy
#1
Felix Wicke, Sasha Moreitz, Stefan Weidauer
Hyponatremia and its rapid correction is a well-known cause of osmotic demyelination most commonly affecting the pons. We report on a case of severe hyponatremia likely due to psychogenic polydipsia resulting in hypotonic hyperhydration with resulting cortical laminar necrosis on initial imaging, mimicking hypoxic brain damage. Pontine myelinolysis became apparent on follow-up imaging, illustrating the diagnostic challenges of extrapontine manifestations of severe hyponatremia.
April 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28437627/tumor-acidity-activatable-tat-targeted-nanomedicine-for-enlarged-fluorescence-magnetic-resonance-imaging-guided-photodynamic-therapy
#2
Meng Gao, Feng Fan, Dongdong Li, Yue Yu, Kuirong Mao, Tianmeng Sun, Haisheng Qian, Wei Tao, Xianzhu Yang
Nanoparticles simultaneously integrated the photosensitizers and diagnostic agents represent an emerging approach for imaging-guided photodynamic therapy (PDT). However, the diagnostic sensitivity and therapeutic efficacy of nanoparticles as well as the heterogeneity of tumors pose tremendous challenges for clinical imaging-guided PDT treatment. Herein, a polymeric nanoparticle with tumor acidity (pHe)-activatable TAT targeting ligand that encapsulates the photosensitizer chlorin e6 (Ce6) and chelates contrast agent Gd(3+) is successfully developed for fluorescence/magnetic resonance (MR) dual-model imaging-guided precision PDT...
April 18, 2017: Biomaterials
https://www.readbyqxmd.com/read/28437626/recent-advances-in-co2-bubble-generating-carrier-systems-for-localized-controlled-release
#3
REVIEW
Yu-Jung Lin, Chieh-Cheng Huang, Wei-Lin Wan, Ching-Hua Chiang, Yen Chang, Hsing-Wen Sung
This article reviews recent progress in the development of carbon dioxide (CO2) bubble-generating drug carriers, including their designs and operating mechanisms; these carriers constitute an advanced class of stimuli-responsive delivery systems with considerable potential. The drug carriers contain stimuli-responsive agents, which are stable before they reach the target location, but enable rapid drug release that is triggered by the generation of CO2 bubbles, which are chemically inert, under certain stimuli...
April 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28437459/management-and-outcomes-of-severe-dengue-patients-presenting-with-sepsis-in-a-tropical-country
#4
Prapit Teparrukkul, Viriya Hantrakun, Nicholas P J Day, T Eoin West, Direk Limmathurotsakul
BACKGROUND: Dengue is a common cause of infection in adults in tropical countries. Sepsis is a syndrome of systemic manifestations induced by infection of any organisms; including bacterial, fungal and viral agents. Here, we investigated the diagnosis, management and outcomes of dengue patients presenting with sepsis in a prospective study of community-acquired sepsis in Thailand. METHODS: From June to December 2015, 874 adult patients (age≥18 years) with suspected or documented community-acquired infection, with ≥3 diagnostic criteria for sepsis according to the Surviving Sepsis Campaign 2012, and within 24 hours of admission were evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/28436276/should-trained-lay-providers-perform-hiv-testing-a-systematic-review-to-inform-world-health-organization-guidelines
#5
C E Kennedy, P T Yeh, C Johnson, R Baggaley
New strategies for HIV testing services (HTS) are needed to achieve UN 90-90-90 targets, including diagnosis of 90% of people living with HIV. Task-sharing HTS to trained lay providers may alleviate health worker shortages and better reach target groups. We conducted a systematic review of studies evaluating HTS by lay providers using rapid diagnostic tests (RDTs). Peer-reviewed articles were included if they compared HTS using RDTs performed by trained lay providers to HTS by health professionals, or to no intervention...
April 24, 2017: AIDS Care
https://www.readbyqxmd.com/read/28436231/the-utility-of-real-time-quantitative-polymerase-chain-reaction-genotype-detection-in-the-diagnosis-of-urinary-tract-infections-in-children
#6
Jon R Felt, Chelsey Yurkovich, Danielle M Garshott, Deepak Kamat, Ahmad Farooqi, Andrew M Fribley, Michael U Callaghan, Katherine Hebert
Urinary tract infections (UTIs) are the most common serious bacterial infection in children with significant morbidity with delayed diagnosis. Polymerase chain reaction (PCR) is very accurate in detecting bacteria and widely available, but has never been evaluated to detect UTIs in children. To assess the utility of PCR as a rapid diagnostic tool, we conducted a prospective cohort study of 193 urine samples from children younger than 36 months undergoing evaluation for UTI in the emergency department over a 10-month period...
April 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28435499/the-fast-and-the-furious-low-risk-chest-pain-and-the-rapid-rule-out-protocol
#7
REVIEW
Maite Anna Huis In 't Veld, Louise Cullen, Simon A Mahler, Barbra E Backus, Zachary D W Dezman, Amal Mattu
Accelerated diagnostic pathways (ADP) have been designed to identify low-risk chest pain patients in the emergency department. This review article discusses the Asia-Pacific Evaluation of Chest Pain Trial (ASPECT) score, the Accelerated Diagnostic Protocol for Chest Pain Trial (ADAPT) score, the Emergency Department Assessment of Chest Pain Score (EDACS), the HEARTScore and the HEART pathway. These ADPs have been validated in various studies and aid the emergency provider with identifying the low-risk chest pain patient who is appropriate for discharge home, while at the same time highlighting those patients who would benefit from further in-patient work up...
April 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28435466/design-of-tumor-acidity-responsive-sheddable-nanoparticles-for-fluorescence-magnetic-resonance-imaging-guided-photodynamic-therapy
#8
Feng Fan, Yue Yu, Fei Zhong, Meng Gao, Tianmeng Sun, Jiaxin Liu, Huimao Zhang, Haisheng Qian, Wei Tao, Xianzhu Yang
Imaging-guided cancer therapy, which integrates diagnostic and therapeutic functionalities into a single system, holds great promise to enhance the accuracy of diagnosis and improve the efficacy of therapy. Specifically, for photodynamic therapy (PDT), it is highly desirable to precisely focus laser light onto the tumor areas to generate reactive oxygen species (ROS) that are cytotoxic tumor cells and avoid light-associated side effects. Herein, a distinct three-layer nanostructured particle with tumor acidity-responsiveness (S-NP) that encapsulates the photosensitizer chlorin e6 (Ce6) and chelates Gd(3+) is successfully developed for fluorescence/magnetic resonance (MR) dual-model imaging-guided precision PDT...
2017: Theranostics
https://www.readbyqxmd.com/read/28435073/evaluation-of-a-rapid-detection-for-coxsackievirus-b3-using-one-step-reverse-transcription-loop-mediated-isothermal-amplification-rt-lamp
#9
A Monazah, M Zeinoddini, A R Saeeidinia
Coxsackievirus B3 (CVB3) is a member of the genus Enterovirus within the family Picornaviridae and is an important pathogen of viral myocarditis, which accounts for more than 50% viral myocarditis cases. VP1 is major capsid protein that this region has a low homology in both amino acid and nucleotide sequences among Enteroviruses. Therefore we have chosen this region for designed a set of RT-LAMP primers for CVB3 detection. For this the total RNA was extracted from 24-h post infected-HeLa cells with complete cytopathic effect (CPE), and applied to a one-step reverse transcription loop-mediated isothermal amplification reaction (RT-LAMP) using CVB3-specific primers...
April 20, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28434852/p-%C3%A2-falciparum-malaria-prevalence-among-blood-donors-in-bamako-mali
#10
B Kouriba, A B Diarra, I Douyon, D T Diabaté, F Kamissoko, H Guitteye, M Baby, M A Guindo, O K Doumbo
AIM: Malaria parasite is usually transmitted to humans by Anopheles mosquitoes but it can also be transmitted through blood transfusion. Usually malaria transmission is low in African urban settings. In West Africa where the P. falciparum is the most predominant malaria species, there are limited measures to reduce the risk of blood transfusion malaria. The aim of this study was to evaluate the prevalence of P. falciparum malaria carriage among blood donors in the National Blood Center of Bamako, capital city of Mali...
April 20, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28434810/comparative-performance-of-the-geenius%C3%A2-hiv-1-hiv-2-supplemental-test-in-florida-s-public-health-testing-population
#11
Sally Fordan, Berry Bennett, Meghan Lee, Susanne Crowe
BACKGROUND: The Centers for Disease Control and Prevention (CDC) published updated guidelines in 2014 for the laboratory diagnosis of HIV in the United States, which recommend use of a supplemental immunoassay (IA) that differentiates HIV-1 from HIV-2 after a repeatedly reactive HIV-1/2 antigen/antibody "Combo" screening test. In October 2014, Bio-Rad Laboratories introduced the FDA-cleared Geenius HIV-1/HIV-2 Supplemental assay and in July 2016, it replaced the Multispot HIV-1/HIV-2 differentiation rapid test as the second test in the HIV diagnostic algorithm...
April 6, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28434761/improvement-in-nutritional-status-in-patients-with-chronic-kidney-disease-4-by-a-nutrition-education-program-with-no-impact-on-renal-function-and-determined-by-male-sex
#12
Almudena Pérez-Torres, Elena González Garcia, Helena Garcia-Llana, Gloria Del Peso, Ana María López-Sobaler, Rafael Selgas
OBJECTIVE: Protein-energy wasting (PEW) is associated with increased morbidity and mortality and a rapid deterioration of kidney function in patients with chronic kidney disease (CKD). However, there is little information regarding the effect of nutrition intervention. The aims of this study were to evaluate the efficacy and safety of a nutrition education program (NEP) in patients with nondialysis dependent CKD (NDD-CKD), based on the diagnostic criteria for PEW proposed by the International Society of Renal Nutrition and Metabolism...
April 20, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28434397/watching-the-availability-and-use-of-rapid-diagnostic-tests-rdts-and-artemisinin-based-combination-therapy-act
#13
Richard W Steketee, Thomas P Eisele
At the turn of this new century and after much debate, the malaria community reckoned with failing first line therapies and moved to a global recommendation for deployment of an artemisinin-based combination therapy (ACT) to treat infections due to Plasmodium falciparum. No one said it was going to be easy. This series in the Malaria Journal reports longitudinal snapshots of how the core pillar of malaria elimination of ensuring universal access to malaria diagnosis and treatment is faring-it is safe to say "not so well"...
April 24, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28433611/preanalytical-variables-for-liquid-chromatography-mass-spectrometry-lc-ms-analysis-of-human-blood-specimens
#14
REVIEW
Gian Luca Salvagno, Elisa Danese, Giuseppe Lippi
The use of liquid chromatography-mass spectrometry (LC-MS) for both diagnostics and research purposes is rapidly growing in clinical laboratories. As for more conventional areas of in vitro diagnostic testing, many preanalytical variables have an impact on these techniques and may hence jeopardize the quality of tests results. The leading preanalytical variables include patient preparation, the nature of the blood collection tubes and additives, interference from spurious hemolysis, sample handling and management, composition of blood tubes, contamination, as well as storage conditions...
April 19, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28432940/a-sandwich-immunoassay-for-brucellosis-diagnosis-based-on-immune-magnetic-beads-and-quantum-dots
#15
Li Li, Dehui Yin, Kun Xu, Yushen Liu, Dandan Song, Juan Wang, Chao Zhao, Xiuling Song, Juan Li
Brucellosis is a serious zoonosis with a rapid increase in incidence across epidemic regions. Currently, there are numerous methods for diagnosing brucellosis. However, these studies often have a few defects, such as low sensitivity, poor specificity, time consuming, laborious, and even potential biological risk. To overcome these shortcomings, we have developed a rapid, sensitive and accurate diagnosis procedure for brucellosis based on the immune magnetic beads (IMB) probe and quantum dots (QDs) - staphylococcal protein A (SPA) probe...
April 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28432759/anesthetic-and-postanesthetic-effects-of-alfaxalone-butorphanol-compared-with-dexmedetomidine-ketamine-in-chinchillas-chinchilla-lanigera
#16
Lily Parkinson, Christoph Mans
Effective and safe anesthetic protocols are required for a variety of surgical and diagnostic procedures in chinchillas.Alfaxalone, a new anesthetic agent in the United States, can be administered intramuscularly and subcutaneously and is therefore potentially useful as an anesthetic induction agent in chinchillas. This study compared the anesthetic efficacy andpostanesthetic effects on food intake and fecal output of a combination of intramuscular alfaxalone (5 mg/kg) and butorphanol(0.5 mg/kg; AB anesthesia) with a combination of dexmedetomidine (0...
April 21, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28432319/diabetic-retinopathy-and-clinical-parameters-favoring-the-presence-of-diabetic-nephropathy-could-predict-renal-outcome-in-patients-with-diabetic-kidney-disease
#17
Chi-Chih Hung, Hugo You-Hsien Lin, Daw-Yang Hwang, I-Ching Kuo, Yi-Wen Chiu, Lee-Moay Lim, Shang-Jyh Hwang, Hung-Chun Chen
Diabetes duration, diabetic retinopathy (DR), and a diagnostic model have been proposed as clinical parameters favoring the presence of diabetic nephropathy (DN) in biopsied patients with diabetic kidney disease. DN, compared with non-diabetic renal disease, had poorer renal outcomes. We tested whether these clinical parameters favoring DN are associated with poorer renal outcomes in non-biopsied patients. In this study, 1330 patients with type 2 diabetes and chronic kidney disease stages 1-4 were included and divided according to diabetes mellitus (DM) duration >8 years, DR, or a diagnostic model for DN...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431628/clinical-and-quantitative-analysis-of-patients-with-crowned-dens-syndrome
#18
Teruyuki Takahashi, Masato Tamura, Toshiaki Takasu, Satoshi Kamei
BACKGROUND: Crowned dens syndrome (CDS) is a radioclinical entity defined by calcium deposition on the transverse ligament of atlas (TLA). In this study, the novel semi-quantitative diagnostic criteria for CDS to evaluate the degree of calcification on TLA by cervical CT are proposed. METHOD: From January 2010 to September 2014, 35 patients who were diagnosed with CDS by cervical CT were adopted as subjects in this study. Based on novel criteria, calcium deposition on TLA was classified into "Stage" and "Grade", to make a score, which was evaluated semi-quantitatively...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431115/spatial-distribution-of-falciparum-malaria-infections-in-zanzibar-implications-for-focal-drug-administration-strategies-targeting-asymptomatic-parasite-carriers
#19
Anders Björkman, Jackie Cook, Hugh Sturrock, Mwinyi Msellem, Abdullah Ali, Weiping Xu, Fabrizio Molteni, Roly Gosling, Chris Drakeley, Andreas Mårtensson
Background.: Optimal use of mass/targeted screen-and-treat or mass or focal drug administration as malaria elimination strategies remains unclear. We therefore studied spatial distribution of Plasmodium falciparum infections to compare simulated effects of these strategies on reducing the parasite reservoir in a pre-elimination setting. Methods.: P. falciparum rapid diagnostic tests (RDTs) and molecular (polymerase chain reaction [PCR]) and serological (enzyme-linked immunosorbent assay) analyses were performed on finger-prick blood samples from a population-based survey in 3 adjacent communities...
May 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28431096/a-new-rapid-resazurin-based-microdilution-assay-for-antimicrobial-susceptibility-testing-of-neisseria-gonorrhoeae
#20
Sunniva Foerster, Valentino Desilvestro, Lucy J Hathaway, Christian L Althaus, Magnus Unemo
Objectives: Rapid, cost-effective and objective methods for antimicrobial susceptibility testing of Neisseria gonorrhoeae would greatly enhance surveillance of antimicrobial resistance. Etest, disc diffusion and agar dilution methods are subjective, mostly laborious for large-scale testing and take ∼24 h. We aimed to develop a rapid broth microdilution assay using resazurin (blue), which is converted into resorufin (pink fluorescence) in the presence of viable bacteria. Methods: The resazurin-based broth microdilution assay was established using 132 N...
April 19, 2017: Journal of Antimicrobial Chemotherapy
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