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https://www.readbyqxmd.com/read/28647675/abstinence-from-prolonged-ethanol-exposure-affects-plasma-corticosterone-glucocorticoid-receptor-signaling-and-stress-related-behaviors
#1
Sucharita S Somkuwar, Leandro F Vendruscolo, McKenzie J Fannon, Brooke E Schmeichel, Tran Bao Nguyen, Jasmin Guevara, Harpreet Sidhu, Candice Contet, Eric P Zorrilla, Chitra D Mandyam
Alcohol dependence is linked to dysregulation of the hypothalamic-pituitary-adrenal axis. Here, we investigated effects of repeated ethanol intoxication-withdrawal cycles (using chronic intermittent ethanol vapor inhalation; CIE) and abstinence from CIE on peak and nadir plasma corticosterone (CORT) levels. Irritability- and anxiety-like behaviors as well as glucocorticoid receptors (GR) in the medial prefrontal cortex (mPFC) were assessed at various intervals (2h-28d) after cessation of CIE. Results show that peak CORT increased during CIE, transiently decreased during early abstinence (1-11d), and returned to pre-abstinence levels during protracted abstinence (17-27d)...
June 12, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28646922/an-investigation-of-the-impact-of-using-different-methods-for-network-meta-analysis-a-protocol-for-an-empirical-evaluation
#2
Amalia Emily Karahalios, Georgia Salanti, Simon L Turner, G Peter Herbison, Ian R White, Areti Angeliki Veroniki, Adriani Nikolakopoulou, Joanne E Mckenzie
BACKGROUND: Network meta-analysis, a method to synthesise evidence from multiple treatments, has increased in popularity in the past decade. Two broad approaches are available to synthesise data across networks, namely, arm- and contrast-synthesis models, with a range of models that can be fitted within each. There has been recent debate about the validity of the arm-synthesis models, but to date, there has been limited empirical evaluation comparing results using the methods applied to a large number of networks...
June 24, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28646592/influence-of-inspiratory-resistive-loading-on-expiratory-muscle-fatigue-in-healthy-humans
#3
Carli M Peters, Joseph F Welch, Paolo B Dominelli, Yannick Molgat-Seon, Lee M Romer, Donald C McKenzie, A William Sheel
Expiratory resistive loading elicits inspiratory as well as expiratory muscle fatigue, suggesting parallel co-activation of the inspiratory muscles during expiration. It is unknown whether the expiratory muscles are similarly co-activated to the point of fatigue during inspiratory resistive loading (IRL). The purpose of this study was to determine whether IRL elicits expiratory as well as inspiratory muscle fatigue. Healthy male subjects (n = 9) underwent isocapnic IRL (60% maximal inspiratory pressure, 15 breaths∙min(-1) , 0...
June 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28645058/promoting-physical-activity-in-high-poverty-neighborhood-parks-a-cluster-randomized-controlled-trial
#4
Deborah A Cohen, Bing Han, Kathryn P Derose, Stephanie Williamson, Terry Marsh, Laura Raaen, Thomas L McKenzie
Although physical activity can help mitigate or prevent multiple chronic diseases, most people in the U.S., especially high-poverty minority groups, engage in insufficient levels of physical activity. To test ways to promote more physical activity in high-poverty area public parks we conducted a randomized controlled intervention trial. After completing baseline measures of park-based physical activity using systematic direct observation three times/day each month for six months and assessing preferences for park programming among 1445 residents living within 1 mile of study parks, we randomized 48 parks in high poverty neighborhoods in the City of Los Angeles, California during 2013-2014 to four study arms: 1) free physical activity classes over a 6-month period, 2) a frequent user program where participants could win prizes based upon the number of visits they made to the park, 3) both the programs, and 4) neither one (control condition)...
June 3, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28641020/comparison-of-the-buschke-selective-reminding-test-and-the-california-verbal-learning-test-second-edition-in-a-stroke-population
#5
McKenzie E M Campbell, Damian Leitner, Harry B Miller, Maya Libben
There are many tests of learning and memory; however, not all yield analogous results and thus are not interchangeable. This study examined the relationship between the California Verbal Learning Test-Second Edition (CVLT-II) and the Buschke Selective Reminding Test (SRT) in a stroke population. Data from stroke inpatients (N = 102) referred for rehabilitation were collected from medical records. Both tests were administered, as part of a larger neuropsychological assessment. Analyses were conducted on Z-scores from the List Total, Learning, and Long Delay Free Recall (LDFR) subscales of the two tests...
June 22, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28638895/chronic-orofacial-pain-burning-mouth-syndrome-and-other-neuropathic-disorders
#6
Raymond C Tait, McKenzie Ferguson, Christopher M Herndon
Chronic orofacial pain is a symptom associated with a wide range of neuropathic, neurovascular, idiopathic, and myofascial conditions that affect a significant proportion of the population. While the collective impact of the subset of the orofacial pain disorders involving neurogenic and idiopathic mechanisms is substantial, some of these are relatively uncommon. Hence, patients with these disorders can be vulnerable to misdiagnosis, sometimes for years, increasing the symptom burden and delaying effective treatment...
March 2017: Journal of Pain Management & Medicine
https://www.readbyqxmd.com/read/28636273/long-term-belowground-effects-of-grassland-management-the-key-role-of-liming
#7
Jemma Heyburn, Paul McKenzie, Michael J Crawley, Dario A Fornara
The functioning of human-managed grassland ecosystems strongly depends on how common management practices will affect grassland 'belowground compartment' including soil biogeochemistry and plant roots. Key questions remain about how animal grazing, liming (e.g. the addition of CaCO3 to soils), and nutrient fertilization might affect, in the long-term, soil nutrient cycling and multiple root traits. Here we focus on a mesotrophic grassland located in Berkshire, UK, where contrasting levels of rabbit grazing, liming and different inorganic fertilizers have been applied since 1991...
June 21, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28631214/identification-of-bufadienolides-from-the-boreal-toad-anaxyrus-boreas-active-against-a-fungal-pathogen
#8
Kelly Barnhart, Megan E Forman, Thomas P Umile, Jordan Kueneman, Valerie McKenzie, Irene Salinas, Kevin P C Minbiole, Douglas C Woodhams
Amphibian granular glands provide a wide range of compounds on the skin that defend against pathogens and predators. We identified three bufadienolides-the steroid-like compounds arenobufagin, gamabufotalin, and telocinobufagin-from the boreal toad, Anaxyrus boreas, through liquid chromatography mass spectrometry (LC/MS). Compounds were detected both after inducing skin gland secretions and in constitutive mucosal rinses from toads. We described the antimicrobial properties of each bufadienolide against Batrachochytrium dendrobatidis (Bd), an amphibian fungal pathogen linked with boreal toad population declines...
June 19, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28628103/a-common-haplotype-lowers-pu-1-expression-in-myeloid-cells-and-delays-onset-of-alzheimer-s-disease
#9
Kuan-Lin Huang, Edoardo Marcora, Anna A Pimenova, Antonio F Di Narzo, Manav Kapoor, Sheng Chih Jin, Oscar Harari, Sarah Bertelsen, Benjamin P Fairfax, Jake Czajkowski, Vincent Chouraki, Benjamin Grenier-Boley, Céline Bellenguez, Yuetiva Deming, Andrew McKenzie, Towfique Raj, Alan E Renton, John Budde, Albert Smith, Annette Fitzpatrick, Joshua C Bis, Anita DeStefano, Hieab H H Adams, M Arfan Ikram, Sven van der Lee, Jorge L Del-Aguila, Maria Victoria Fernandez, Laura Ibañez, Rebecca Sims, Valentina Escott-Price, Richard Mayeux, Jonathan L Haines, Lindsay A Farrer, Margaret A Pericak-Vance, Jean Charles Lambert, Cornelia van Duijn, Lenore Launer, Sudha Seshadri, Julie Williams, Philippe Amouyel, Gerard D Schellenberg, Bin Zhang, Ingrid Borecki, John S K Kauwe, Carlos Cruchaga, Ke Hao, Alison M Goate
A genome-wide survival analysis of 14,406 Alzheimer's disease (AD) cases and 25,849 controls identified eight previously reported AD risk loci and 14 novel loci associated with age at onset. Linkage disequilibrium score regression of 220 cell types implicated the regulation of myeloid gene expression in AD risk. The minor allele of rs1057233 (G), within the previously reported CELF1 AD risk locus, showed association with delayed AD onset and lower expression of SPI1 in monocytes and macrophages. SPI1 encodes PU...
June 19, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28620847/faster-more-reproducible-desi-ms-for-biological-tissue-imaging
#10
Jocelyn Tillner, Vincen Wu, Emrys A Jones, Steven D Pringle, Tamas Karancsi, Andreas Dannhorn, Kirill Veselkov, James S McKenzie, Zoltan Takats
A new, more robust sprayer for desorption electrospray ionization (DESI) mass spectrometry imaging is presented. The main source of variability in DESI is thought to be the uncontrolled variability of various geometric parameters of the sprayer, primarily the position of the solvent capillary, or more specifically, its positioning within the gas capillary or nozzle. If the solvent capillary is off-center, the sprayer becomes asymmetrical, making the geometry difficult to control and compromising reproducibility...
June 15, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28615416/il-17-receptor-a-maintains-and-protects-the-skin-barrier-to-prevent-allergic-skin-inflammation
#11
Achilleas Floudas, Sean P Saunders, Tara Moran, Christian Schwartz, Emily Hams, Denise C Fitzgerald, James A Johnston, Graham S Ogg, Andrew N McKenzie, Patrick T Walsh, Padraic G Fallon
Atopic dermatitis (AD) is a common inflammatory skin disease affecting up to 20% of children and 3% of adults worldwide and is associated with dysregulation of the skin barrier. Although type 2 responses are implicated in AD, emerging evidence indicates a potential role for the IL-17A signaling axis in AD pathogenesis. In this study we show that in the filaggrin mutant mouse model of spontaneous AD, IL-17RA deficiency (Il17ra(-/-) ) resulted in severe exacerbation of skin inflammation. Interestingly, Il17ra(-/-) mice without the filaggrin mutation also developed spontaneous progressive skin inflammation with eosinophilia, as well as increased levels of thymic stromal lymphopoietin (TSLP) and IL-5 in the skin...
June 14, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28614809/monitoring-body-water-balance-in-pregnant-and-nursing-women-the-validity-of-urine-color
#12
Amy L McKenzie, Lawrence E Armstrong
BACKGROUND: Urine osmolality (UOSM) reflects the renal regulation of excess fluid or deficit fluid, and therefore, serves as a marker of hydration status. Little is known about monitoring hydration in pregnant and lactating women despite significant physiological challenges to body water balance during that time. Therefore, we designed a study to assess if urine color (UCOL), an inexpensive and practical method, was a valid means of assessing urine concentration. Twenty-four hour UCOL was significantly correlated with 24 h UOSM in all women: pregnant, lactating, and control (r = 0...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28610362/a-new-species-of-i-cavernocypris-i-hartmann-1964-crustacea-ostracoda-from-caves-in-south-korea
#13
Robin James Smith, Takahiro Kamiya, Yong-Gun Choi, Jimin Lee, Cheon Young Chang
Surveys of caves in South Korea yielded a new species of the ostracod genus Cavernocypris Hartmann, 1964, herein described as Cavernocypris danielopoli Smith & Kamiya n. sp. This is the fifth described species in this widely distributed genus, and can be discriminated from its congeners by the highly triangular shape of the carapace in lateral view, caused by a large dorsal protrusion on the left valve. A second triangular-shaped morphotype was also collected, differing from the first by a lower carapace and less pronounced dorsal protrusion...
May 17, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609260/genesis-of-influenza-a-h5n8-viruses
#14
Rabeh El-Shesheny, Subrata Barman, Mohammed M Feeroz, M Kamrul Hasan, Lisa Jones-Engel, John Franks, Jasmine Turner, Patrick Seiler, David Walker, Kimberly Friedman, Lisa Kercher, Sajeda Begum, Sharmin Akhtar, Ashis Kumar Datta, Scott Krauss, Ghazi Kayali, Pamela McKenzie, Richard J Webby, Robert G Webster
Highly pathogenic avian influenza A(H5N8) clade 2.3.4.4 virus emerged in 2016 and spread to Russia, Europe, and Africa. Our analysis of viruses from domestic ducks at Tanguar haor, Bangladesh, showed genetic similarities with other viruses from wild birds in central Asia, suggesting their potential role in the genesis of A(H5N8).
August 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28605647/physiological-determinants-of-individual-variation-in-sensitivity-to-an-organophosphate-pesticide-in-nile-tilapia-oreochromis-niloticus
#15
David J McKenzie, Felipe R Blasco, Thiago C Belão, Shaun S Killen, Nathan D Martins, Edwin W Taylor, F Tadeu Rantin
Individual variation in sub-lethal sensitivity to the organophosphate pesticide trichlorfon was investigated in Nile tilapia, using critical swimming speed (Ucrit) as an indicator. Tilapia exposed for 96h to 500μgl(-1) trichlorfon at 26°C (Tcfn group, n=27) showed a significant decline in mean Ucrit, compared to their own control (pre-exposure) performance in clean water (-14.5±2.3%, mean±SEM), but also compared to a Sham group (n=10) maintained for 96h in clean water. Individuals varied in their relative sensitivity to the pesticide, with the decline in Ucrit after exposure varying from 1 to 41%...
June 9, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28605609/effects-of-macro-and-micro-nutrients-on-exercise-induced-hepcidin-response-in-highly-trained-endurance-athletes
#16
Dylan Timothy Dahlquist, Trent Stellingwerff, Brad Pendleton Dieter, Donald C McKenzie, Michael S Koehle
Iron deficiency (ID) has ergolytic effects on athletic performance. Exercise induced inflammation impedes iron absorption in the digestive tract by up-regulating the expression of the iron regulatory protein, hepcidin. Limited research indicates the potential of specific macro- and micro- nutrients on blunting exercise induced hepcidin. Therefore, we investigated the effects of post-exercise supplementation with protein and carbohydrate (CHO) and vitamins D3 and K2 on the post-exercise hepcidin response. Ten highly-trained male cyclists (age: 26...
June 12, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28601943/examining-the-impact-of-migrant-status-on-ethnic-differences-in-mental-health-service-use-preceding-a-first-diagnosis-of-schizophrenia
#17
Kelly K Anderson, Kwame J McKenzie, Paul Kurdyak
PURPOSE: Some ethnic groups have more negative contacts with health services for first-episode psychosis, likely arising from a complex interaction between ethnicity, socio-economic factors, and immigration status. Using population-based health administrative data, we sought to examine the effects of ethnic group and migrant status on patterns of health service use preceding a first diagnosis of schizophrenia or schizoaffective disorder among people aged 14-35 over a 10-year period. METHODS: We compared access to care and intensity of service use for first-generation ethnic minority groups to the general population of Ontario...
June 10, 2017: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/28601392/histopathologic-features-of-melanoma-in-difficult-to-diagnose-lesions-a-case-control-study
#18
Manuel Lora Gonzalez, Eric D Young, James Bush, Katelyn McKenzie, Edgar Hunt, Viseslav Tonkovic-Capin, Melissa Jacobs, Michael Kucenic, Garth R Fraga
BACKGROUND: Dermatopathology is considered the gold standard for melanoma diagnosis, but a subset of cases is difficult to diagnose by histopathology. OBJECTIVE: The goals of this study were to measure the accuracy of histopathologic features in difficult-to-diagnose melanocytic tumors and the interobserver agreement of those features. METHODS: This is a case-control study of histopathologic features of melanoma in 100 difficult-to-diagnose melanocytic neoplasms (40 melanomas and 60 nevi)...
June 7, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28599897/to-the-point-medical-education-technology-and-the-millennial-learner
#19
REVIEW
Laura Hopkins, Brittany S Hampton, Jodi F Abbott, Sandra D Buery-Joyner, Latasha B Craig, John L Dalrymple, David A Forstein, Scott C Graziano, Margaret L Mckenzie, Archana Pradham, Abigail Wolf, Sarah M Page-Ramsey
This article, from the "To The Point" series prepared by the Association of Professors of Gynecology and Obstetrics Undergraduate Medical Education Committee, provides an overview of the characteristics of Millennials, and describes how medical educators can customize and reframe their curricula and teaching methods to maximize Millennial learning. A literature search was performed to identify articles on generational learning. We summarize the importance of understanding the attitudes, ideas, and priorities of Millennials in order to tailor educational methods to stimulate and enhance learning...
June 6, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28598930/health-care-personnel-perception-of-the-privacy-of-electronic-health-records
#20
Kenji Saito, Frances S Shofer, Poune Saberi, Judith Green-McKenzie
: Health care facilities are increasingly converting paper medical records to electronic health records. This study investigates the perception of privacy health care personnel have of electronic health records. METHODS: A pilot tested, anonymous survey was administered to a convenience sample of health care personnel. Standard summary statistics and Chi-square analysis were used to assess differences in perception. RESULTS: Of the 93% (96/103) who responded, 65% were female and 43% white...
June 2017: Journal of Occupational and Environmental Medicine
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