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https://www.readbyqxmd.com/read/28935255/a-comprehensive-approach-to-qualify-and-validate-the-essential-parameters-of-an-in-vitro-release-test-ivrt-method-for-acyclovir-cream-5
#1
Katrin I Tiffner, Isadore Kanfer, Thomas Augustin, Reingard Raml, Sam G Raney, Frank Sinner
The rate of release of an active pharmaceutical ingredient (API) from a topical semisolid dosage form can be influenced by its physical and structural properties. An In Vitro Release Test (IVRT) is an established method to characterize this rate of API release and compare the underlying sameness in product quality characteristics. The purpose of this work was to validate an IVRT method to compare acyclovir cream, 5% products. However, despite widespread use of the IVRT since 1997, there was no established approach to validate an IVRT method...
September 18, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28931369/acute-hiv-infection-presenting-as-hemophagocytic-lymphohistiocytosis-case-report-and-review-of-the-literature
#2
Farheen Manji, Evan Wilson, Etienne Mahe, John Gill, John Conly
BACKGROUND: Hemophagocytic lymphohistiocytosis (HLH) is an uncommon systemic inflammatory condition that can result from infections, autoimmune diseases and malignancies. It is a rarely reported life threatening complication of an acute HIV infection, with only ten documented case reports per our literature search. We present a case of HLH secondary to acute HIV infection with a negative HIV antibody-based assay and high plasma viral load. CASE PRESENTATION: A 45 year old male with a past medical history of well controlled hypertension presented with fever, dizziness and non-bloody diarrhea...
September 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28929009/meta-analysis-of-biomarkers-for-severe-dengue-infections
#3
Kuan-Meng Soo, Bahariah Khalid, Siew-Mooi Ching, Chau Ling Tham, Rusliza Basir, Hui-Yee Chee
BACKGROUND: Dengue viral infection is an acute infection that has the potential to have severe complications as its major sequela. Currently, there is no routine laboratory biomarker with which to predict the severity of dengue infection or monitor the effectiveness of standard management. Hence, this meta-analysis compared biomarker levels between dengue fever (DF) and severe dengue infections (SDI) to identify potential biomarkers for SDI. METHODS: Data concerning levels of cytokines, chemokines, and other potential biomarkers of DF, dengue hemorrhagic fever, dengue shock syndrome, and severe dengue were obtained for patients of all ages and populations using the Scopus, PubMed, and Ovid search engines...
2017: PeerJ
https://www.readbyqxmd.com/read/28926630/efficacy-of-pentavalent-antimoniate-intralesional-infiltration-therapy-for-cutaneous-leishmaniasis-a-systematic-review
#4
Nayara Castelano Brito, Ana Rabello, Gláucia Fernandes Cota
BACKGROUND: The mainstays of cutaneous leishmaniasis (CL) treatment, in several world regions, are pentavalent antimony (Sbv) compounds administered parenterally, despite their recognized toxicity, which requires frequent laboratory monitoring and complicates their use in areas with scarce infrastructure. As result of these drawbacks, the WHO Expert Committee on leishmaniasis has expanded the recommendations for the use of local therapies, including Sbv intralesional infiltration (IL-Sbv), as CL therapy alternatives even in the New World...
2017: PloS One
https://www.readbyqxmd.com/read/28924725/hiv-viral-suppression-37-states-and-the-district-of-columbia-2014
#5
Kristen L Hess, H Irene Hall
Achieving viral suppression among HIV-positive persons is a critical component of HIV treatment and prevention, because it leads to improved health outcomes for the individual and reduced risk of HIV transmission. There is wide variation in viral suppression across jurisdictions, races/ethnicities, age groups, and transmission risk groups. This analysis uses HIV surveillance data to examine rates of viral suppression among people living with diagnosed HIV (PLWDH) in 38 jurisdictions with complete lab reporting...
September 18, 2017: Journal of Community Health
https://www.readbyqxmd.com/read/28924562/assessment-of-analytical-performance-of-glucose-meter-in-pediatric-age-group-at-tertiary-care-referral-hospital
#6
Mohit Vijay Rojekar, Vandana Kumawat, Jayesh Panot, Surekha Khedkar, Arati Adhe-Rojekar
BACKGROUND: Glucometers are the excellent tools for self-monitoring of blood glucose (SMBG). They are important especially in the circumstances where continuous monitoring is mandatory and at decision making levels. Tight glycemic control protocols are important for preventing the ill effects of fluctuating glucose levels. This increases the use of glucometers in various healthcare settings. As technology advances, glucometers are getting better in terms of quality of results. But still some lacunae are there...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28921124/droplet-volume-variability-as-a-critical-factor-for-accuracy-of-absolute-quantification-using-droplet-digital-pcr
#7
Alexandra Bogožalec Košir, Carla Divieto, Jernej Pavšič, Stefano Pavarelli, David Dobnik, Tanja Dreo, Roberto Bellotti, Maria Paola Sassi, Jana Žel
Accurate and precise nucleic-acid quantification is crucial for clinical and diagnostic decisions, as overestimation or underestimation can lead to misguided treatment of a disease or incorrect labelling of the products. Digital PCR is one of the best tools for absolute nucleic-acid copy-number determination. However, digital PCR needs to be well characterised in terms of accuracy and sources of uncertainty. With droplet digital PCR, discrepancies between the droplet volume assigned by the manufacturer and measured by independent laboratories have already been shown in previous studies...
September 18, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28912998/igg4-related-kidney-disease-report-of-a-case-presenting-as-a-renal-mass
#8
Daniele Bianchi, Luca Topazio, Gabriele Gaziev, Valerio Iacovelli, Pierluigi Bove, Alessandro Mauriello, Enrico Finazzi Agrò
IgG4-related disease (IgG4-RD) is a nosological entity defined as a chronic immune-mediated fibro-inflammatory condition characterized by a tendency to form tumefactive, tissue-destructive lesions or by organ failure. Urologic involvement in IgG4-RD has been described in some short series of patients and in isolated case reports, most often involving the kidneys in so-called IgG4-related kidney disease (IgG4-RKD). The disease can occasionally mimic malignancies and is at risk of being misdiagnosed due to its rarity...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28912156/neutrophils-are-critical-for-myelin-removal-in-a-peripheral-nerve-injury-model-of-wallerian-degeneration
#9
Jane A Lindborg, Matthias Mack, Richard E Zigmond
Wallerian degeneration (WD) is considered an essential preparatory stage to the process of axonal regeneration. In the peripheral nervous system, infiltrating monocyte-derived macrophages that utilize the chemokine receptor CCR2 to gain entry to injured tissues from the bloodstream, are purportedly necessary for efficient WD. However, our lab has previously reported that myelin clearance in the injured sciatic nerve proceeds unhindered in the Ccr2(-/-) mouse model. Here, we extensively characterize WD in male Ccr2(-/-) mice and identify a compensatory mechanism of WD that is facilitated primarily by neutrophils...
September 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28911315/direct-quantification-of-protein-glycan-phosphorylation
#10
Stephanie A Ketcham, Muhammad Ashraf, Chikkathur N Madhavarao
Phosphorylation is an important post-translational modification (PTM) of proteins and a critical quality attribute for protein therapeutics, especially if it is required for protein function or sub-cellular targeting. Most current methods to quantify phosphorylation are time-consuming, indirect, or require specific instrumentation and technical skills. Here, we report the adaptation of a phosphate-specific binding dye and common laboratory instruments for quantification of relative amounts of phosphorylated glycans as well as phosphorylation of amino acid residues on the backbones of proteins...
September 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28910410/the-function-of-drosophila-larval-class-iv-dendritic-arborization-sensory-neurons-in-the-larval-pupal-transition-is-separable-from-their-function-in-mechanical-nociception-responses
#11
Hannah E Brown, Trishna Desai, Allison J Murphy, Harshida Pancholi, Zachary W Schmidt, Hannah Swahn, Eric C Liebl
The sensory and physiological inputs which govern the larval-pupal transition in Drosophila, and the neuronal circuity that integrates them, are complex. Previous work from our laboratory identified a dosage-sensitive genetic interaction between the genes encoding the Rho-GEF Trio and the zinc-finger transcription factor Sequoia that interfered with the larval-pupal transition. Specifically, we reported heterozygous mutations in sequoia (seq) dominantly exacerbated the trio mutant phenotype, and this seq-enhanced trio mutant genotype blocked the transition of third instar larvae from foragers to wanderers, a requisite behavioral transition prior to pupation...
2017: PloS One
https://www.readbyqxmd.com/read/28893861/adrenal-venous-sampling-for-primary-aldosteronism-laboratory-medicine-best-practice
#12
Gregory Kline, Daniel T Holmes
Primary aldosteronism (PA) is the most common form of secondary hypertension and is critical to identify because when caused by an aldosterone-producing adenoma (APA) or another unilateral form, it is potentially curable, and even when caused by bilateral disease, antihypertensives more specific to PA treatment can be employed (ie, aldosterone antagonists). Identification of unilateral forms is not generally accomplished with imaging because APAs may be small and elude detection, and coincidental identification of a non-functioning incidentaloma contralateral to an APA may lead to removal of an incorrect gland...
September 11, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28886171/positive-predictive-value-and-effectiveness-of-measles-case-based-surveillance-in-uganda-2012-2015
#13
Fred Nsubuga, Immaculate Ampaire, Simon Kasasa, Henry Luzze, Annet Kisakye
INTRODUCTION: Disease surveillance is a critical component in the control and elimination of vaccine preventable diseases. The Uganda National Expanded Program on Immunization strives to have a sensitive surveillance system within the Integrated Disease Surveillance and Response (IDSR) framework. We analyzed measles surveillance data to determine the effectiveness of the measles case-based surveillance system and estimate its positive predictive value in order to inform policy and practice...
2017: PloS One
https://www.readbyqxmd.com/read/28885922/management-of-acute-diarrheal-illness-during-deployment-a-deployment-health-guideline-and-expert-panel-report
#14
Mark S Riddle, Gregory J Martin, Clinton K Murray, Timothy H Burgess, Patrick Connor, James D Mancuso, Elizabeth R Schnaubelt, Timothy P Ballard, Jamie Fraser, David R Tribble
BACKGROUND: Acute diarrheal illness during deployment causes significant morbidity and loss of duty days. Effective and timely treatment is needed to reduce individual, unit, and health system performance impacts. METHODS: This critical appraisal of the literature, as part of the development of expert consensus guidelines, asked several key questions related to self-care and healthcare-seeking behavior, antibiotics for self-treatment of travelers' diarrhea, what antibiotics/regimens should be considered for treatment of acute watery diarrhea and febrile diarrhea and/or dysentery, and when and what laboratory diagnostics should be used to support management of deployment-related travelers' diarrhea...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28879148/implementation-of-broad-screening-with-ebola-rapid-diagnostic-tests-in-for%C3%A3-cariah-guinea
#15
Frantz Jean Louis, Jennifer Y Huang, Yacouba K Nebie, Lamine Koivogui, Gayatri Jayaraman, Nadine Abiola, Amanda Vansteelandt, Mary C Worrel, Judith Shang, Louise B Murphy, David L Fitter, Barbara J Marston, Lise Martel
BACKGROUND: Laboratory-enhanced surveillance is critical for rapidly detecting the potential re-emergence of Ebola virus disease. Rapid diagnostic tests (RDT) for Ebola antigens could expand diagnostic capacity for Ebola virus disease. OBJECTIVES: The Guinean National Coordination for Ebola Response conducted a pilot implementation to determine the feasibility of broad screening of patients and corpses with the OraQuick(®) Ebola RDT. METHODS: The implementation team developed protocols and trained healthcare workers to screen patients and corpses in Forécariah prefecture, Guinea, from 15 October to 30 November 2015...
2017: African Journal of Laboratory Medicine
https://www.readbyqxmd.com/read/28871441/international-registry-on-the-use-of-the-cytosorb%C3%A2-adsorber-in-icu-patients-study-protocol-and-preliminary-results
#16
REVIEW
S Friesecke, K Träger, G A Schittek, Z Molnar, F Bach, K Kogelmann, R Bogdanski, A Weyland, A Nierhaus, F Nestler, D Olboeter, D Tomescu, D Jacob, H Haake, E Grigoryev, M Nitsch, A Baumann, M Quintel, M Schott, J T Kielstein, A Meier-Hellmann, F Born, U Schumacher, M Singer, J Kellum, F M Brunkhorst
INTRODUCTION: The aim of this clinical registry is to record the use of CytoSorb® adsorber device in critically ill patients under real-life conditions. METHODS: The registry records all relevant information in the course of product use, e. g., diagnosis, comorbidities, course of the condition, treatment, concomitant medication, clinical laboratory parameters, and outcome (ClinicalTrials.gov Identifier: NCT02312024). Primary endpoint is in-hospital mortality as compared to the mortality predicted by the APACHE II and SAPS II score, respectively...
September 4, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28869492/the-lactate-albumin-ratio-a-valuable-tool-for-risk-stratification-in-septic-patients-admitted-to-icu
#17
Michael Lichtenauer, Bernhard Wernly, Bernhard Ohnewein, Marcus Franz, Bjoern Kabisch, Johanna Muessig, Maryna Masyuk, Alexander Lauten, Paul Christian Schulze, Uta C Hoppe, Malte Kelm, Christian Jung
The lactate/albumin ratio has been reported to be associated with mortality in pediatric patients with sepsis. We aimed to evaluate the lactate/albumin ratio for its prognostic relevance in a larger collective of critically ill (adult) patients admitted to an intensive care unit (ICU). A total of 348 medical patients admitted to a German ICU for sepsis between 2004 and 2009 were included. Follow-up of patients was performed retrospectively between May 2013 and November 2013. The association of the lactate/albumin ratio (cut-off 0...
September 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28858936/pathologists-use-of-second-opinions-in-interpretation-of-melanocytic-cutaneous-lesions-policies-practices-and-perceptions
#18
Berta M Geller, Paul D Frederick, Stevan R Knezevich, Jason P Lott, Heidi D Nelson, Linda J Titus, Patricia A Carney, Anna N A Tosteson, Tracy L Onega, Raymond L Barnhill, Martin A Weinstock, David E Elder, Michael W Piepkorn, Joann G Elmore
BACKGROUND: Research examining the role of second opinions in pathology for diagnosis of melanocytic lesions is limited. OBJECTIVE: To assess current laboratory policies, clinical use of second opinions, and pathologists' perceptions of second opinions for melanocytic lesions. MATERIALS AND METHODS: Cross-sectional data collected from 207 pathologists in 10 US states who diagnose melanocytic lesions. The web-based survey ascertained pathologists' professional information, laboratory second opinion policy, use of second opinions, and perceptions of second opinion value for melanocytic lesions...
August 29, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28855907/intrinsic-and-extrinsic-properties-affecting-innate-immune-responses-to-nanoparticles-the-case-of-cerium-oxide
#19
REVIEW
Eudald Casals, Muriel F Gusta, Jordi Piella, Gregori Casals, Wladimiro Jiménez, Victor Puntes
We review the apparent discrepancies between studies that report anti-inflammatory effects of cerium oxide nanoparticles (CeO2 NPs) through their reactive oxygen species-chelating properties and immunological studies highlighting their toxicity. We observe that several underappreciated parameters, such as aggregation size and degree of impurity, are critical determinants that need to be carefully addressed to better understand the NP biological effects in order to unleash their potential clinical benefits. This is because NPs can evolve toward different states, depending on the environment where they have been dispersed and how they have been dispersed...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28853564/organometallic-neptunium-chemistry
#20
Polly L Arnold, Michał S Dutkiewicz, Olaf Walter
Fifty years have passed since the foundation of organometallic neptunium chemistry, and yet only a handful of complexes have been reported, and even fewer have been fully characterized. Yet, increasingly, combined synthetic/spectroscopic/computational studies are demonstrating how covalently bonding, soft, carbocyclic organometallic ligands provide an excellent platform for advancing the fundamental understanding of the differences in orbital contributions and covalency in f-block metal-ligand bonding. Understanding the subtleties is the key to the safe handling and separations of the highly radioactive nuclei...
September 13, 2017: Chemical Reviews
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