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https://www.readbyqxmd.com/read/29668140/-standardization-of-a-multiplex-real-time-pcr-test-for-the-identification-of-angiostrongylus-cantonensis-a-costaricensis-and-a-vasorum
#1
Rubén E Varela-M, Jinney Stefany Arias, Luz Elena Velásquez
INTRODUCTION: Angiostrongyliasis is a disease caused by Angiostrongylus nematodes that is present worldwide. The infections with the highest impact on human and animal health are caused by A. cantonensis, A. costaricensis, and A. vasorum. Clinical forms of the disease in humans are eosinophilic meningitis and abdominal angiostrongyliasis, while the most common effect on dogs are cardiopulmonary damages. It is deemed as an emerging disease as the result of the global dissemination of the African snail Lissachatina fulica, an intermediary host of these parasites...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29668138/-molecular-typing-of-leishmania-leishmania-amazonensis-and-species-of-the-subgenus-viannia-associated-with-cutaneous-and-mucosal-leishmaniasis-in-colombia-a-concordance-study
#2
Clemencia Ovalle-Bracho, Carolina Camargo, Yira Díaz-Toro, Marcela Parra-Muñoz
INTRODUCTION: Multilocus enzyme electrophoresis (MLEE) is the reference standard for the characterization of Leishmania species. The test is restricted to specialized laboratories due to its technical complexity, cost, and time required to obtain results. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) is used to identify Leishmania species. OBJECTIVE: To establish the concordance between the two tests as identifying methods for circulating species in Colombia...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29668136/-a-fatal-case-series-of-rocky-mountain-spotted-fever-in-sonora-m%C3%A3-xico
#3
Jesús Delgado-De la Mora, Jesús David Licona-Enríquez, Marcia Leyva-Gastélum, David Delgado-De la Mora, Adela Rascón-Alcantar, Gerardo Álvarez-Hernández
INTRODUCTION: Rocky Mountain spotted fever is a highly lethal infectious disease, particularly if specific treatment with doxycycline is given belatedly. OBJECTIVE: To describe the clinical profile of fatal Rocky Mountain spotted fever cases in hospitalized patients in the state of Sonora, México. MATERIALS AND METHODS: We conducted a cross-sectional study on a series of 47 deaths caused by Rickettsia rickettsii from 2013 to 2016. The diagnosis of Rocky Mountain spotted fever was confirmed in a single blood sample by polymerase chain reaction (PCR) or by a four-fold increase in immunoglobulin G measured in paired samples analyzed by indirect immunofluorescence...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29668121/lipofection-of-plasmid-dna-into-human-mast-cell-lines-using-lipid-nanoparticles-generated-by-microfluidic-mixing
#4
Brett A Duguay, Kate Wei-Chen Huang, Marianna Kulka
Mast cells are important immune cells that have significant roles in mediating allergy and asthma. Therefore, studying the molecular mechanisms regulating these and other processes in mast cells is important to elucidate. Methods such as lipofection, transduction, and electroporation are often employed to dissect these mechanisms by disrupting gene expression in mast cell lines. However, as with other leukocytes, human mast cells (HMCs) are often refractory to the delivery of plasmids by lipofection. In this study, we investigated the utility of lipid nanoparticles (LNPs) containing the ionizable cationic lipids 1,2-dioleoyloxy-3-dimethylaminopropane, 1,2-dioleyloxy-3-dimethylaminopropane, or 2,2-dilinoleyl-4-(2-dimethylaminoethyl)-[1,3]-dioxolane for the delivery of plasmid DNA into HMC lines...
April 18, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29668049/surgical-management-of-spontaneous-cerebrospinal-fistulas-and-encephaloceles-of-the-temporal-bone
#5
Joe Walter Kutz, Andrew K Johnson, Cameron C Wick
OBJECTIVES/HYPOTHESIS: To describe the presentation, surgical findings, and outcomes in patients with spontaneous temporal bone cerebrospinal fluid (CSF) fistulas and encephaloceles. STUDY DESIGN: Retrospective chart review. METHODS: A retrospective chart review of patients treated for a spontaneous temporal bone CSF fistula and/or encephalocele over a 10-year period was performed. Data recorded included demographic information, presenting signs and symptoms, radiographic and laboratory studies, surgical approach, materials used for repair, surgical complications, and successful closure of the CSF fistula...
April 18, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29667911/experimental-heat-stress-nephropathy-and-liver-injury-are-improved-by-allopurinol
#6
Carlos A Roncal-Jimenez, Yuka Sato, Tamara Milagres, Ana Andres-Hernando, Gabriela E Garcia, Petter Bjornstad, Jaime Butler-Dawson, Cecilia Sorensen, Lee Newman, Lyndsay Krisher, Magdalena Madero, Jason Glaser, Ramon Garcia-Trabannino, Emmanuel Jarquin-Romero, Zhilin Song, Thomas Jensen, Masanari Kuwabara, Bernardo Rodriguez-Iturbe, Laura-Gabriela Sanchez-Lozada, Miguel A Lanaspa, Richard J Johnson
BACKGROUND: An epidemic of chronic kidney disease (CKD) has been observed in Central America among workers in the sugarcane fields. One hypothesis is that the CKD may be caused by recurrent heat stress and dehydration, and potentially by hyperuricemia. Accordingly, we developed a murine model of kidney injury associated with recurrent heat stress. In the current experiment, we tested whether treatment with allopurinol (a xanthine oxidase inhibitor that reduces serum urate) provides renal protection against recurrent heat stress and dehydration...
April 18, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29667904/establishing-cut-offs-for-urine-erythrocyte-and-leukocyte-dipstick-tests
#7
Yousun Chung, Dae-Hyun Ko, Jungwon Hyun, Hyun Soo Kim, Min-Jeong Park, Dong Hoon Shin
Urine erythrocyte (Ery) and leukocyte (Leu) dipstick tests are essential for detecting microhematuria and urinary tract infection. Currently, there is no suggestion for establishing the cut-off limits in an ordinal scale test. This study aimed to establish the cut-off limits for urine Ery and Leu dipstick tests via probit regression. From 1 January 2016 to 30 June 2016, laboratory data were collected from patients at one teaching hospital whose specimen had analytical results from both a urine dipstick test and an automated urine particle analyzer...
April 18, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29667896/a-phase-1-study-to-assess-the-pharmacokinetics-safety-and-tolerability-of-fremanezumab-doses-225-mg-675-mg-and-900-mg-in-japanese-and-caucasian-healthy-subjects
#8
Orit Cohen-Barak, Sivan Weiss, Michele Rasamoelisolo, Nicola Faulhaber, Paul P Yeung, Pippa S Loupe, Esther Yoon, Mohit D Gandhi, Ofer Spiegelstein, Ernesto Aycardi
Objectives The primary and secondary objectives of this phase 1 study were to evaluate the pharmacokinetic profile, safety, and immunogenicity of fremanezumab subcutaneous (sc) doses tested in phase 2 and 3 trials (225 mg, 675 mg and 900 mg) following single administration in Japanese (n = 32) and Caucasian (n = 32) healthy subjects. Methods Japanese and matched Caucasian healthy subjects were enrolled into one of four cohorts and were randomly assigned to one of four treatments: 225, 675, or 900 mg fremanezumab, or placebo...
January 1, 2018: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29667891/diagnostic-performance-of-a-novel-coronary-ct-angiography-algorithm-prospective-multicenter-validation-of-an-intracycle-ct-motion-correction-algorithm-for-diagnostic-accuracy
#9
Daniele Andreini, Fay Y Lin, Asim Rizvi, Iksung Cho, Ran Heo, Gianluca Pontone, Antonio L Bartorelli, Saima Mushtaq, Todd C Villines, Patricia Carrascosa, Byoung Wook Choi, Stephen Bloom, Han Wei, Yan Xing, Dan Gebow, Heidi Gransar, Hyuk-Jae Chang, Jonathon Leipsic, James K Min
OBJECTIVE: Motion artifact can reduce the diagnostic accuracy of coronary CT angiography (CCTA) for coronary artery disease (CAD). The purpose of this study was to compare the diagnostic performance of an algorithm dedicated to correcting coronary motion artifact with the performance of standard reconstruction methods in a prospective international multicenter study. SUBJECTS AND METHODS: Patients referred for clinically indicated invasive coronary angiography (ICA) for suspected CAD prospectively underwent an investigational CCTA examination free from heart rate-lowering medications before they underwent ICA...
April 18, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29667890/novel-quality-indicators-for-radiologists-interpreting-abdominopelvic-ct-images-risk-adjusted-outcomes-among-emergency-department-patients-with-right-lower-quadrant-pain
#10
Matthew S Davenport, Shokoufeh Khalatbari, James H Ellis, Richard H Cohan, Suzanne T Chong, Keith E Kocher
OBJECTIVE: The purpose of this study was to determine whether individual radiologists are predictive of important relevant health outcomes among emergency department (ED) patients undergoing abdominopelvic CT for right lower quadrant pain. MATERIALS AND METHODS: This single-institution retrospective cohort study included 2169 patients undergoing abdominopelvic CT for right lower quadrant pain in the ED from February 1, 2012, through August 31, 2016. CT examinations were interpreted by 15 radiologists (four emergency, 11 abdominal) who each reported on more than 70 CT examinations in the cohort...
April 18, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29667857/determining-risk-factors-that-increase-hospitalizations-in-patients-with-systemic-lupus-erythematosus
#11
D Li, H M Madhoun, W N Roberts, W Jarjour
Introduction Systemic lupus erythematosus (SLE) is a complex disease that is associated with significant mortality and an increased risk of hospitalization. Several validated instruments are available to measure disease activity in SLE patients. However, these instruments were not designed to screen for SLE patients at an increased risk of hospitalization. These instruments also fail to incorporate some data that are easily obtainable from electronic health records, such as the frequency of missed outpatient appointments...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29667852/determination-of-the-position-of-the-knee-at-the-time-of-an-anterior-cruciate-ligament-rupture-for-male-versus-female-patients-by-an-analysis-of-bone-bruises
#12
Kwadwo A Owusu-Akyaw, Sophia Y Kim, Charles E Spritzer, Amber T Collins, Zoë A Englander, Gangadhar M Utturkar, William E Garrett, Louis E DeFrate
BACKGROUND: The incidence of anterior cruciate ligament (ACL) ruptures is 2 to 4 times higher in female athletes as compared with their male counterparts. As a result, a number of recent studies have addressed the hypothesis that female and male patients sustain ACL injuries via different mechanisms. The efficacy of prevention programs may be improved by a better understanding of whether there are differences in the injury mechanism between sexes. Hypothesis/Purpose: To compare knee positions at the time of a noncontact ACL injury between sexes...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29667848/transarterial-embolization-for-postpartum-hemorrhage-lessons-learned
#13
Chen-Ju Fu, Wiwan Irama, Yon-Cheong Wong, Hsiao-Jung Tseng, Li-Jen Wang, Kee-Min Yeow, Cheng-Hsien Wu
Background Although transarterial embolization (TAE) can powerfully control postpartum hemorrhage (PPH), clinical failure of TAE is not uncommon. Purpose To discover whether any parameters could predict timely clinical failure of TAE, then whether a supplementary intervention could be promptly initiated. Material and Methods We retrospectively analyzed 118 TAE procedures in 113 patients with PPH performed at our institution between January 2012 and May 2015. The patients were divided into the following groups: clinically successful TAE and failed TAE...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29667844/lower-extremity-biomechanics-during-a-drop-vertical-jump-in-participants-with-or-without-chronic-ankle-instability
#14
C Collin Herb, Kaitlyn Grossman, Mark A Feger, Luke Donovan, Jay Hertel
CONTEXT:   Chronic ankle instability (CAI) is a condition characterized by range-of-motion, neuromuscular, and postural-control deficits and subjective disability, reinjury, and posttraumatic osteoarthritis. Differences have been reported in kinematics, kinetics, surface electromyography (EMG), and ground reaction forces during functional tasks performed by those with CAI. These measures are often collected independently, and the research on collecting measures simultaneously during a movement task is limited...
April 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29667816/nitrate-photochemistry-at-the-air-ice-interface-and-in-other-ice-reservoirs
#15
Alexander S McFall, Kasey C Edwards, Cort Anastasio
The photolysis of snowpack nitrate (NO3-) is an important source of gaseous reactive nitrogen species that affect atmospheric oxidants, particularly in remote regions. However, it is unclear whether nitrate photochemistry differs between the three solute reservoirs in/on ice: in liquid-like regions (LLRs) in the ice; within the solid ice matrix; and in a quasi-liquid layer (QLL) at the air-ice interface, where past work indicates photolysis is enhanced. In this work, we explore the photoformation of nitrite in these reservoirs using laboratory ices...
April 18, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29667809/strand-displacement-probes-combined-with-isothermal-nucleic-acid-amplification-for-instrument-free-detection-from-complex-samples
#16
Elizabeth A Phillips, Taylor J Moehling, Sanchita Bhadra, Andrew D Ellington, Jacqueline C Linnes
Sensitive and specific detection of pathogens via nucleic acid amplification is currently constrained to laboratory settings and portable equipment with costly fluorescent detectors. Nucleic acid-detecting lateral flow immunoassay strips (LFIAs) offer a low-cost visual transduction strategy at points of need. Unfortunately, these LFIAs frequently detect amplification byproducts that can yield spurious results which can only be deciphered through statistical analysis. We integrated customizable strand displacement probes into standard loop mediated isothermal amplification (LAMP) assays to prevent byproduct capture on commercial LFIAs...
April 18, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29667798/delusional-infestation-in-psychodermatology
#17
Monica Rosales Santillan, Dustin L Taylor, Jason S Reichenberg
Delusional infestation (DI), also known as delusional parasitosis, consists of a patient's strong belief that he or she is infested with a nonliving substance or living organism despite lack of medical evidence to support this belief. The most commonly reported sources of infestation include insects, fibrous strands, worms, and scabies. Delusional infestation is predominantly seen in women and older patients. This disorder has a variable course and prognosis in patients. Delusional infestation can be a primary psychiatric problem, or secondary to underlying medical conditions or other psychiatric disorders...
April 18, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29667719/occupational-health-hazards-in-the-interventional-laboratory-time-for-a-safer-environment
#18
Lloyd W Klein, Donald L Miller, Stephen Balter, Warren Laskey, Neil Naito, David Haines, Allan Ross, Matthew A Mauro, James A Goldstein
Over the past 30 years, the advent of fluoroscopically guided interventional procedures has resulted in dramatic increments in both X-ray exposure and physical demands that predispose interventionists to distinct occupational health hazards. The hazards of accumulated radiation exposure have been known for years, but until recently the other potential risks have been ill-defined and under-appreciated. The physical stresses inherent in this career choice appear to be associated with a predilection to orthopedic injuries, attributable in great part to the cumulative adverse effects of bearing the weight and design of personal protective apparel worn to reduce radiation risk and to the poor ergonomic design of interventional suites...
January 4, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29667630/-the-principal-and-auxiliary-immunohistochemical-markers-of-intravital-mechanical-strangulation-asphyxia
#19
D V Bogomolov, V A Fetisov, O P Denisova, Yu V Zbrueva, G G Semenov
The objective of the present study was the evaluation of the auxiliary methods for the diagnostics of the intravital formation of the constriction marks; the secondary objective was to determine the pace at which the death and asphyxia occur. MATERIAL AND METHODS: The materials on which the study was based included 17 cases of mechanical strangulation asphyxia involving 13 men and 4 women at the age from 8 to 28 years. All cases of hanging were associated with different blood alcohol levels...
2018: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/29667603/atomic-clocks-for-geodesy
#20
Tanja E Mehlstäubler, Gesine Grosche, Christian Lisdat, Piet O Schmidt, Heiner Denker
We review experimental progress on optical atomic clocks and frequency transfer, and consider the prospects of using these technologies for geodetic measurements. Today, optical atomic frequency standards have reached relative frequency inaccuracies below 10-17 , opening new fields of fundamental and applied research. The dependence of atomic frequencies on the gravitational potential makes atomic clocks ideal candidates for the search for deviations in the predictions of Einstein's general relativity, tests of modern unifying theories and the development of new gravity field sensors...
April 18, 2018: Reports on Progress in Physics
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