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https://www.readbyqxmd.com/read/28719854/clinically-silent-alzheimer-s-and-vascular-pathologies-influence-brain-networks-supporting-executive-function-in-healthy-older-adults
#1
Brian T Gold, Christopher A Brown, Jonathan G Hakun, Leslie M Shaw, John Q Trojanowski, Charles D Smith
Aging is associated with declines in executive function. We examined how executive functional brain systems are influenced by clinically silent Alzheimer's disease (AD) pathology and cerebral white-matter hyperintensities (WMHs). Twenty-nine younger adults and 34 cognitively normal older adults completed a working memory paradigm while functional magnetic resonance imaging was performed. Older adults further underwent lumbar cerebrospinal fluid draw for the assessment of AD pathology and FLAIR imaging for the assessment of WMHs...
June 24, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28719501/evaluation-of-the-adequacy-of-the-2010-revised-world-health-organization-recommended-dosages-of-the-first-line-antituberculosis-drugs-for-children
#2
Hongmei Yang, Anthony Enimil, Fizza S Gillani, Sampson Antwi, Albert Dompreh, Antoinette Ortsin, Eugene Adu Awhireng, Maxwell Owusu, Lubbe Wiesner, Charles A Peloquin, Awewura Kwara
BACKGROUND: The World Health Organization recommended increased dosages of the first-line antituberculosis (anti-TB) drugs for children in 2010. We examined the frequency of and factors associated with low plasma maximum concentration (Cmax) of each drug in children treated with the revised dosages. METHODS: Children on anti-TB therapy for at least 4 weeks underwent pharmacokinetic testing. Plasma Cmax below the lower limit of proposed reference range was considered low...
July 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28719329/rift-valley-fever-seroprevalence-in-coastal-kenya
#3
Elysse N Grossi-Soyster, Tamara Banda, Crystal Y Teng, Eric M Muchiri, Peter L Mungai, Francis M Mutuku, Ginny Gildengorin, Uriel Kitron, Charles H King, A Desiree Labeaud
Rift Valley fever virus (RVFV) causes severe disease in both animals and humans, resulting in significant economic and public health damages. The objective of this study was to measure RVFV seroprevalence in six coastal Kenyan villages between 2009 and 2011, and characterize individual-, household-, and community-level risk factors for prior RVFV exposure. Sera were tested for anti-RVFV IgG via enzyme-linked immunosorbent assay. Overall, 51 (1.8%; confidence interval [CI95] 1.3-2.3) of 2,871 samples were seropositive for RVFV...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719284/nonacademic-attributes-predict-medical-and-nursing-student-intentions-to-emigrate-or-to-work-rurally-an-eight-country-survey-in-asia-and-africa
#4
David M Silvestri, Meridith Blevins, Kenneth A Wallston, Arfan R Afzal, Nazmul Alam, Ben Andrews, Miliard Derbew, Simran Kaur, Mwapatsa Mipando, Charles A Mkony, Philip M Mwachaka, Nirju Ranjit, Sten H Vermund
AbstractWe sought to identify independent, nonacademic predictors of medical and nursing student intent to migrate abroad or from rural to urban areas after graduation in low- and middle-income countries (LMIC). This was a cross-sectional survey of 3,199 first- and final-year medical and nursing students at 16 training institutions in eight LMIC. Questionnaires assessed demographics, career intentions, and preferences regarding selected career, location, and work-related attributes. Using principal component analysis, student preferences were reduced into four discrete categories of priorities: 1) work environment resources, 2) location livability, 3) altruistic job values, and 4) individualistic job values...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719278/evaluation-of-the-field-performance-of-immunocard-stat-%C3%A2-rapid-diagnostic-test-for-rotavirus-in-dadaab-refugee-camp-and-at-the-kenya-somalia-border
#5
Maurice Ope, Raymond Nyoka, Ahmed Unshur, Fredrick O Oyier, Shafe A Mowlid, Brian Owino, Steve B Ochieng, Charles I Okello, Joel M Montgomery, Burton Wagacha, Aleksandar Galev, Abdikadir Abdow, Mathew D Esona, Jacqueline Tate, David Fitter, Susan T Cookson, Balajee Arunmozhi, Nina Marano
AbstractRotavirus commonly causes diarrhea in children, leading to hospitalization and even death. Rapid diagnostic tests are feasible alternatives for determining rotavirus outbreaks in refugee camps that have inadequate laboratory capacity. We evaluated the field performance of ImmunoCard STAT!(®) Rotavirus (ICS-RV) in Dadaab Refugee Camp and at the Kenya-Somalia border. From May to December 2014, we prospectively enrolled children aged < 5 years hospitalized with acute diarrhea, defined as ≥ 3 episodes of loose stool in 24 hours for < 7 days...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719038/static-cerebrovascular-pressure-autoregulation-remains-intact-during-deep-hypothermia
#6
Dheeraj Goswami, Katherine McLeod, Samantha Leonard, Kathleen Kibler, Ronald Blaine Easley, Charles D Fraser, Dean Andropoulos, Ken Brady
BACKGROUND: Clinical studies measuring cerebral blood flow in infants during deep hypothermia have demonstrated diminished cerebrovascular pressure autoregulation. The coexistence of hypotension in these cohorts confounds the conclusion that deep hypothermia impairs cerebrovascular pressure autoregulation. AIM: We sought to compare the lower limit of autoregulation and the static rate of autoregulation between normothermic and hypothermic piglets. METHODS: Twenty anesthetized neonatal piglets (5-7 days old; 10 normothermic and 10 hypothermic to 20°C) had continuous measurements of cortical red cell flux using laser Doppler flowmetry, while hemorrhagic hypotension was induced without cardiopulmonary bypass...
July 18, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28718828/tobacco-harm-reduction-with-vaporised-nicotine-thrive-the-study-protocol-of-an-uncontrolled-feasibility-study-of-novel-nicotine-replacement-products-among-people-living-with-hiv-who-smoke
#7
Stephanie Bell, Judith Dean, Charles Gilks, Mark A Boyd, Lisa Fitzgerald, Allyson Mutch, Peter Baker, Graham Neilsen, Coral E Gartner
Smoking is a leading cause of morbidity and premature mortality among people living with HIV (PLHIV), who have high rates of tobacco smoking. Vaporised nicotine products (VNPs) are growing in popularity as a quit aid and harm reduction tool. However, little is known about their acceptability and use among PLHIV. Using a pragmatic, uncontrolled, mixed methods design this exploratory clinical trial aims to examine the feasibility of conducting a powered randomised clinical trial of VNPs as a smoking cessation and harm reduction intervention among vulnerable populations, such as PLHIV who smoke tobacco...
July 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28718773/mouse-epileptic-seizure-detection-with-multiple-eeg-features-and-simple-thresholding-technique
#8
Quang M Tieng, Ashwin Anbazhagan, Min Chen, David Charles Reutens
Epilepsy is a common neurological disorder characterized by recurrent, unprovoked seizures. The search for new treatments for seizures and epilepsy relies upon studies in animal models of epilepsy. To capture data on seizures, many applications require prolonged electroencephalography (EEG) with recordings that generate voluminous data. The desire for efficient evaluation of these recordings motivates the development of automated seizure detection algorithms. Approach: A new seizure detection method is proposed, based on multiple features and a simple thresholding technique...
July 18, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28718508/development-of-ifox-hunting-as-a-functional-genomics-tool-and-demonstration-of-its-use-to-identify-early-senescence-related-genes-in-the-polyploid-brassica-napus
#9
Juan Ling, Renjie Li, Chinedu Charles Nwafor, Junluo Cheng, Maoteng Li, Qing Xu, Jian Wu, Lu Gan, Qingyong Yang, Chao Liu, Ming Chen, Yongming Zhou, Edgar B Cahoon, Chunyu Zhang
Functional genomics studies of many polyploid crops, including rapeseed (Brassica napus) are constrained by limited tool sets. Here we report development of a gain-of-function platform, termed "iFOX (inducible Full-length cDNA OvereXpressor gene)-Hunting", for inducible expression of B. napus seed cDNAs in Arabidopsis. A Gateway-compatible plant gene expression vector containing a methoxyfenozide-inducible constitutive promoter for transgene expression was developed. This vector was used for cloning of random cDNAs from developing B...
July 17, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28718333/anomalous-radial-artery-as-an-incidental-finding-during-a-routine-carpal-tunnel-release
#10
Charles A Gober, Tarik Mujadzic, John E Hershman, Mirsad M Mujadzic
BACKGROUND: Compression of the median nerve at the wrist, or carpal tunnel syndrome, is the most commonly recognized nerve entrapment syndrome. Carpal tunnel syndrome is usually caused by compression of the median nerve due to synovial swelling, tumor, or anomalous anatomical structure within the carpal tunnel. METHODS: During a routine carpal tunnel decompression, a large vessel was identified within the carpal tunnel. RESULTS: The large vessel was the radial artery...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718323/modern-approaches-to-the-management-of-metastatic-epidural-spinal-cord-compression
#11
Zain A Husain, Arjun Sahgal, Eric L Chang, Pejman Jabehdar Maralani, Charlotte D Kubicky, Kristin J Redmond, Charles Fisher, Ilya Laufer, Simon S Lo
Metastatic epidural spinal cord compression (MESCC) is an oncologic emergency requiring prompt treatment to maximize neurologic function, ambulatory function and local control. Traditionally, options for MESCC included external beam radiation therapy with or without surgery. Surgery has usually been reserved for the patient with optimal performance status, single level MESCC or mechanical instability. Advances in external beam radiation therapy such as the development of stereotactic body radiation therapy have allowed for the delivery of high-dose radiation, allowing for both long-term pain and local control...
July 18, 2017: CNS Oncology
https://www.readbyqxmd.com/read/28718204/detrital-shadows-estuarine-food-web-connectivity-depends-on-fluvial-influence-and-consumer-feeding-mode
#12
Emily Howe, Charles A Simenstad, Andrea Ogston
We measured the influence of landscape setting on estuarine food web connectivity in five macrotidal Pacific Northwest estuaries across a gradient of freshwater influence. We used stable isotopes (δ(13) C, δ(15) N, δ(34) S) in combination with a Bayesian mixing model to trace primary producer contributions to suspension- and deposit-feeding bivalve consumers (Mytilus trossulus and Macoma nasuta) transplanted into three estuarine vegetation zones: emergent marsh, mudflat, Japanese eelgrass (Zostera japonica), and native eelgrass (Zostera marina)...
July 17, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28718058/cultural-biases-in-current-medical-practices-with-a-specific-attention-to-orthopedic-surgery-a-review
#13
Gracia Etienne, Todd P Pierce, Anton Khlopas, Morad Chughtai, Carlos J Lavernia, Teva Y Vogelstein, Craig M Thomas, Charles S Modlin, Michael A Mont
Due to the increasing diversity within the United States population, there is an ever-increasing need for increased education on cultural literacy and tolerance in medical schools and residency programs. The purpose of this article was to review how a person's culture can play a substantive role in effecting and influencing (1) medical diagnosis, (2) patient and health provider medical decision-making, (3) the patient's perception of disease, and (4) the doctor-patient relationships. Many of the decisions we make as orthopedic surgeons must account for the patient's cultural needs, as much of our work impacts patients' daily activities and function...
July 17, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28717725/minding-the-gaps-in-cancer-pain-management-education-a-multicenter-study-of-clinical-residents-and-fellows-in-a-low-versus-high-resource-setting
#14
Charles Amoatey Odonkor, Ernest Osei-Bonsu, Oswald Tetteh, Andy Haig, Robert Samuel Mayer, Thomas J Smith
PURPOSE: Inadequate pain management training has been reported as a major cause of undertreatment of cancer pain. Yet, past research has not comprehensively compared the quality of cancer pain management education among physicians in training in high-resource countries (HRCs) with those in low-resource countries (LRCs). The purpose of this study was to examine and compare gaps in cancer pain management education among physician trainees in an HRC (United States) versus an LRC (Ghana)...
December 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28717724/validation-and-quality-assessment-of-the-kilimanjaro-cancer-registry
#15
Leah L Zullig, Kristin Schroeder, Pilli Nyindo, Theresia Namwai, Elvis Silayo, Angelah Msomba, Michael Oresto Munishi, Francis Karia, Charles Muiruri, John Bartlett, Venance Maro, S Yousuf Zafar
PURPOSE: Global cancer burden has increasingly shifted to low- and middle-income countries and is particularly pronounced in Africa. There remains a lack of comprehensive cancer information as a result of limited cancer registry development. In Moshi, Tanzania, a regional cancer registry exists at Kilimanjaro Christian Medical Center. Data quality is unknown. Our objective was to evaluate the completeness and quality of the Kilimanjaro Cancer Registry (KCR). METHODS: In October 2015, we conducted a retrospective review of KCR by validating the internal consistency of registry records with medical and pathology records...
December 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28717671/biomechanical-comparison-between-the-cruciate-suture-and-a-single-vertical-suture-used-for-arthroscopic-meniscal-repair-response
#16
Charles Milchteim, Eric A Branch, Ty Maughon, Jay Hughey, Adam W Anz
No abstract text is available yet for this article.
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28717662/clinical-and-molecular-characterization-of-cystinuria-in-a-french-cohort-relevance-of-assessing-large-scale-rearrangements-and-splicing-variants
#17
Pascaline Gaildrat, Said Lebbah, Abdellah Tebani, Bénédicte Sudrié-Arnaud, Isabelle Tostivint, Guillaume Bollee, Hélène Tubeuf, Thomas Charles, Aurelia Bertholet-Thomas, Alice Goldenberg, Frederic Barbey, Alexandra Martins, Pascale Saugier-Veber, Thierry Frébourg, Bertrand Knebelmann, Soumeya Bekri
BACKGROUND: Cystinuria is an autosomal recessive disorder of dibasic amino acid transport in the kidney and the intestine leading to increased urinary cystine excretion and nephrolithiasis. Two genes, SLC3A1 and SLC7A9, coding respectively for rBAT and b0,+AT, account for the genetic basis of cystinuria. METHODS: This study reports the clinical and molecular characterization of a French cohort including 112 cystinuria patients and 25 relatives from 99 families. Molecular screening was performed using sequencing and Quantitative Multiplex PCR of Short Fluorescent Fragments analyses...
July 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28717426/extracellular-vesicles-released-following-heat-stress-induce-bystander-effect-in-unstressed-populations
#18
Findlay Bewicke-Copley, Laura Ann Mulcahy, Laura Ann Jacobs, Priya Samuel, Naveed Akbar, Ryan Charles Pink, David Raul Francisco Carter
Cells naïve to stress can display the effects of stress, such as DNA damage and apoptosis, when they are exposed to signals from stressed cells; this phenomenon is known as the bystander effect. We previously showed that bystander effect induced by ionising radiation are mediated by extracellular vesicles (EVs). Bystander effect can also be induced by other types of stress, including heat shock, but it is unclear whether EVs are involved. Here we show that EVs released from heat shocked cells are also able to induce bystander damage in unstressed populations...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28717151/what-drives-sound-symbolism-different-acoustic-cues-underlie-sound-size-and-sound-shape-mappings
#19
Klemens Knoeferle, Jixing Li, Emanuela Maggioni, Charles Spence
Sound symbolism refers to the non-arbitrary mappings that exist between phonetic properties of speech sounds and their meaning. Despite there being an extensive literature on the topic, the acoustic features and psychological mechanisms that give rise to sound symbolism are not, as yet, altogether clear. The present study was designed to investigate whether different sets of acoustic cues predict size and shape symbolism, respectively. In two experiments, participants judged whether a given consonant-vowel speech sound was large or small, round or angular, using a size or shape scale...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717047/annotated-draft-genome-assemblies-for-the-northern-bobwhite-colinus-virginianus-and-the-scaled-quail-callipepla-squamata-reveal-disparate-estimates-of-modern-genome-diversity-and-historic-effective-population-size
#20
David L Oldeschulte, Yvette A Halley, Miranda L Wilson, Eric K Bhattarai, Wesley Brashear, Joshua Hill, Richard P Metz, Charles D Johnson, Dale Rollins, Markus J Peterson, Derek M Bickhart, Jared E Decker, John F Sewell, Christopher M Seabury
Northern bobwhite (Colinus virginianus; hereafter bobwhite) and scaled quail (Callipepla squamata) populations have suffered precipitous declines across most of their U.S. ranges. Illumina-based first- (v1.0) and second-generation (v2.0) draft genome assemblies for the scaled quail and the bobwhite produced N50 scaffold sizes of 1.035 Mb and 2.042 Mb, thereby producing a 45-fold improvement in contiguity over the existing bobwhite assembly, and ≥ 90% of the assembled genomes were captured within 1,313 and 8,990 scaffolds, respectively...
July 17, 2017: G3: Genes—Genomes—Genetics
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