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https://www.readbyqxmd.com/read/28938712/invited-commentary-the-need-for-cognitive-science-in-methodology
#1
Sander Greenland
There is no complete solution for the problem of abuse of statistics, but methodological training needs to cover cognitive biases and other psychosocial factors affecting inferences. The present paper discusses 3 common cognitive distortions: 1) dichotomania, the compulsion to perceive quantities as dichotomous even when dichotomization is unnecessary and misleading, as in inferences based on whether a P value is "statistically significant"; 2) nullism, the tendency to privilege the hypothesis of no difference or no effect when there is no scientific basis for doing so, as when testing only the null hypothesis; and 3) statistical reification, treating hypothetical data distributions and statistical models as if they reflect known physical laws rather than speculative assumptions for thought experiments...
September 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28938475/modeling-the-sex-differences-and-inter-individual-variability-in-the-activity-of-the-hypothalamic-pituitary-adrenal-axis
#2
Rohit T Rao, Ioannis P Androulakis
Significant sex differences exist in the activity of the hypothalamic-pituitary-adrenal (HPA) axis. These differences are thought to contribute to the disparity in the prevalence of various autoimmune and infectious diseases between males and females. We use a mathematical model of the HPA axis to evaluate the hypothesis that differential sensitivity and negative feedback of the HPA axis network are causal factors for the observed sex differences in its activity. In doing so, we implicitly account for the differential influence of gonadal hormones on the HPA axis...
August 31, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938469/taming-the-flames-targeting-white-adipose-tissue-browning-in-hypermetabolic-conditions
#3
Abdikarim Abdullahi, Marc G Jeschke
In this era of increased obesity and diabetes prevalence, the browning of white adipose tissue (WAT) has emerged as a promising therapeutic target to induce weight loss and improve insulin sensitivity in this population. The browning process entails a shift in the WAT from primarily storing excess energy to the dissipation of energy as heat. However, this idealistic view of WAT browning being the saviour of the metabolic syndrome has been criticized by studies in burns and cancer patients that have shown browning to be detrimental rather than being beneficial...
August 30, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/28938440/sex-differences-in-the-hormonal-and-metabolic-response-to-dietary-protein-dilution
#4
Karlton R Larson, Kimberly A Russo, Yanbin Fang, Niloufar Mohajerani, Michael L Goodson, Karen K Ryan
Consumption of a low-protein, high-carbohydrate diet induces a striking increase in circulating fibroblast growth factor-21 (FGF21), which is associated with improved cardiometabolic health and increased longevity. Increased lifespan during this dietary protein 'dilution' has been explained by resource-mediated trade-offs between reproduction and survival, such that fecundity is optimized at a greater relative intake of proteins:carbohydrates. The magnitude of this trade-off is thought to be sex-dependent. Here, we tested the hypothesis that metabolic responses to dietary protein dilution are likewise dependent on sex...
August 9, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938416/pancreatic-histopathology-of-human-monogenic-diabetes-due-to-causal-variants-in-kcnj11-hnf1a-gata6-and-lmna
#5
May Sanyoura, Laura Jacobsen, David Carmody, Daniela Del Gaudio, Gorka Alkorta-Aranburu, Kelly Arndt, Ying Ying Hu, Frances Kobiernicki, Irina Kusmartseva, Mark A Atkinson, Louis H Philipson, Desmond Schatz, Martha Campbell-Thompson, Siri Atma W Greeley
Context: Monogenic diabetes is thought to account for 2% of all diabetes cases but most patients are misdiagnosed as type 1 or type 2 diabetes. To date, little is known about the histopathological features of pancreases from patients with monogenic diabetes. Objective: Retrospective study of the JDRF Network for Pancreatic Organ donors with Diabetes biorepository was used to identify possible cases with monogenic diabetes and to compare effects of genetic variants on pancreas histology...
August 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938298/safety-and-efficacy-of-epidural-analgesia
#6
Elke M E Bos, Markus W Hollmann, Philipp Lirk
PURPOSE OF REVIEW: Epidural analgesia remains a widely used analgesic technique. This article aims to assess the safety of epidural analgesia by balancing efficacy and complications, of epidural analgesia for acute, labor and chronic pain. RECENT FINDINGS: Main indications for epidural analgesia include major open abdominal surgery, thoracotomy and labor analgesia. Past and current literature show that epidural analgesia leads to statistically significant, but possibly clinically less meaningful, reductions in pain scores compared with intravenous analgesia...
September 21, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28938181/cortical-inhibitory-interneurons-control-sensory-processing
#7
REVIEW
Katherine C Wood, Jennifer M Blackwell, Maria Neimark Geffen
Inhibitory and excitatory neurons form intricate interconnected circuits in the mammalian sensory cortex. Whereas the function of excitatory neurons is largely to integrate and transmit information within and between brain areas, inhibitory neurons are thought to shape the way excitatory neurons integrate information, and they exhibit context-specific and behavior-specific responses. Over the last few years, work across sensory modalities has begun unraveling the function of distinct types of cortical inhibitory neurons in sensory processing, identifying their contribution to controlling stimulus selectivity of excitatory neurons and modulating information processing based on the behavioral state of the subject...
September 19, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28938114/the-eukaryotic-co2-concentrating-organelle-is-liquid-like-and-exhibits-dynamic-reorganization
#8
Elizabeth S Freeman Rosenzweig, Bin Xu, Luis Kuhn Cuellar, Antonio Martinez-Sanchez, Miroslava Schaffer, Mike Strauss, Heather N Cartwright, Pierre Ronceray, Jürgen M Plitzko, Friedrich Förster, Ned S Wingreen, Benjamin D Engel, Luke C M Mackinder, Martin C Jonikas
Approximately 30%-40% of global CO2 fixation occurs inside a non-membrane-bound organelle called the pyrenoid, which is found within the chloroplasts of most eukaryotic algae. The pyrenoid matrix is densely packed with the CO2-fixing enzyme Rubisco and is thought to be a crystalline or amorphous solid. Here, we show that the pyrenoid matrix of the unicellular alga Chlamydomonas reinhardtii is not crystalline but behaves as a liquid that dissolves and condenses during cell division. Furthermore, we show that new pyrenoids are formed both by fission and de novo assembly...
September 21, 2017: Cell
https://www.readbyqxmd.com/read/28938101/exposure-to-particulate-matter-air-pollution-and-risk-of-multiple-sclerosis-in-two-large-cohorts-of-us-nurses
#9
N Palacios, K L Munger, K C Fitzgerald, J E Hart, T Chitnis, A Ascherio, F Laden
BACKGROUND: Air pollution is thought to raise the risk of neurological disease by promoting neuroinflammation, oxidative stress, glial activation and cerebrovascular damage. Multiple Sclerosis is a common auto-immune disorder, primarily affecting young women. We conducted, to a large prospective study of particulate matter (PM) exposure and multiple sclerosis (MS) risk in two prospective cohorts of women: the Nurses Health Study (NHS) and the Nurses Health Study II (NHS II). METHODS: Cumulative average exposure to different size fractions of PM up to the onset of MS was estimated using spatio-temporal models...
September 19, 2017: Environment International
https://www.readbyqxmd.com/read/28938023/exploration-of-genetic-architecture-through-sib-ship-reconstruction-in-advanced-breeding-population-of-eucalyptus-nitens
#10
Jaroslav Klápště, Mari Suontama, Emily Telfer, Natalie Graham, Charlie Low, Toby Stovold, Russel McKinley, Heidi Dungey
Accurate inference of relatedness between individuals in breeding population contributes to the precision of genetic parameter estimates, effectiveness of inbreeding management and the amount of genetic progress delivered from breeding programs. Pedigree reconstruction has been proven to be an efficient tool to correct pedigree errors and recover hidden relatedness in open pollinated progeny tests but the method can be limited by the lack of parental genotypes and the high proportion of alien pollen from outside the breeding population...
2017: PloS One
https://www.readbyqxmd.com/read/28937953/the-biological-basis-of-chronic-traumatic-encephalopathy-following-blast-injury-a-literature-review
#11
Matt Aldag, Regina C Armstrong, Faris Bandak, Patrick S F Bellgowan, Timothy Bentley, Sean Biggerstaff, Katrina Caravelli, Joan Cmarik, Alicia Crowder, Thomas J DeGraba, Travis A Dittmer, Richard G Ellenbogen, Colin Greene, Raj K Gupta, Ramona Hicks, Stuart Hoffman, Robert C Latta, Michael J Leggieri, Donald Marion, Robert Mazzoli, Michael McCrea, John O'Donnell, Mark Packer, James B Petro, Todd E Rasmussen, Wendy Sammons-Jackson, Richard Shoge, Victoria Tepe, Ladd A Tremaine, James Zheng
The United States Department of Defense Blast Injury Research Program Coordinating Office organized the 2015 International State-of-the-Science meeting to explore links between blast-related head injury and the development of chronic traumatic encephalopathy (CTE). Before the meeting, the planning committee examined articles published between 2005 and October 2015 and prepared this literature review, which summarized broadly CTE research and addressed questions about the pathophysiological basis of CTE and its relationship to blast- and nonblast-related head injury...
September 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28937890/the-use-of-restorative-materials-in-primary-molars-among-pediatric-dentists-in-israel
#12
Sigalit Blumer, Benjamin Peretz, Tal Ratson
OBJECTIVES: To assess the current choice of various restoration materials among Israeli pediatric dentists according to seniority and specialty. STUDY DESIGN: Participating dentists completed a 23-item questionnaire on their qualifications, type of practice and preference of restorative material. RESULTS: Seventy-five dentists (average age 46.27±12.6 years, 58 females) participated. Forty-one were specialist pediatric dentists and 34 were general practitioners...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937684/strategies-for-the-etiological-therapy-of-cystic-fibrosis
#13
REVIEW
Luigi Maiuri, Valeria Raia, Guido Kroemer
Etiological therapies aim at repairing the underlying cause of cystic fibrosis (CF), which is the functional defect of the cystic fibrosis transmembrane conductance regulator (CFTR) protein owing to mutations in the CFTR gene. Among these, the F508del CFTR mutation accounts for more than two thirds of CF cases worldwide. Two somehow antinomic schools of thought conceive CFTR repair in a different manner. According to one vision, drugs should directly target the mutated CFTR protein to increase its plasma membrane expression (correctors) or improve its ion transport function (potentiators)...
September 22, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28937634/the-physiological-and-pathological-implications-of-the-formation-of-hydrogels-with-a-specific-focus-on-amyloid-polypeptides
#14
REVIEW
Létitia Jean, Alex C Foley, David J T Vaux
Hydrogels are water-swollen and viscoelastic three-dimensional cross-linked polymeric network originating from monomer polymerisation. Hydrogel-forming polypeptides are widely found in nature and, at a cellular and organismal level, they provide a wide range of functions for the organism making them. Amyloid structures, arising from polypeptide aggregation, can be damaging or beneficial to different types of organisms. Although the best-known amyloids are those associated with human pathologies, this underlying structure is commonly used by higher eukaryotes to maintain normal cellular activities, and also by microbial communities to promote their survival and growth...
September 22, 2017: Biomolecules
https://www.readbyqxmd.com/read/28937509/non-ige-mediated-gastrointestinal-food-allergies
#15
Priscille Biermé, Anna Nowak-Wegrzyn, Jean-Christoph Caubet
PURPOSE OF REVIEW: We focus on recent advances regarding the epidemiology, physiopathology, diagnosis and managements of non-IgE-mediated gastrointestinal food allergies (non-IgE-GI-FAs), particularly food protein-induced enterocolitis syndrome (FPIES). RECENT FINDINGS: The first international FPIES diagnostic and management guidelines have been recently published. Although FPIES largely remains a diagnosis of exclusion, it may be more prevalent than previously thought...
September 20, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28937268/real-time-intra-procedural-18f-fdg-pet-ct-guided-biopsy-using-automated-robotic-biopsy-arm-ara-in-the-evaluation-of-thoracic-lesions-with-prior-inconclusive-biopsy-results
#16
Renjith Kalathoorakathu Radhakrishnan, Bhagwant Rai Mittal, Arun Kumar Reddy Gorla, Rajender Kumar Basher, Ashwani Sood, Amanjit Bal, Naveen Kalra, Niranjan Khandelwal, Navneet Singh, Digambar Behera
OBJECTIVE: The aim of this study was to assess the feasibility and appraise the diagnostic utility of real time 18F-FDG PET/CT guided biopsy under automated robotic biopsy arm (ARA) guidance for the evaluation of thoracic lesions with prior inconclusive biopsy results. METHODS: PET/CT guided biopsy of thoracic lesions was performed in patients who had at least one previous inconclusive biopsy. A total of 25 patients (Male: Female- 18 males, 7 females; Age: Range- 13-75; mean- 53...
September 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28937230/vagal-immune-interactions-involved-in-cholinergic-anti-inflammatory-pathway
#17
I Zila, D Mokra, J Kopincova, M Kolomaznik, M Javorka, A Calkovska
Inflammation and other immune responses are involved in the variety of diseases and disorders. The acute response to endotoxemia includes activation of innate immune mechanisms as well as changes in autonomic nervous activity. The autonomic nervous system and the inflammatory response are intimately linked and sympathetic and vagal nerves are thought to have anti-inflammation functions. The basic functional circuit between vagus nerve and inflammatory response was identified and the neuroimmunomodulation loop was called cholinergic anti-inflammatory pathway...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28937015/chronic-noise-exposure-in-the-spontaneously-hypertensive-rat
#18
Anne T M Konkle, Stephen E Keith, James P McNamee, David Michaud
INTRODUCTION: Epidemiological studies have suggested an association between the relative risk for developing cardiovascular disease (CVD) and long-term exposure to elevated levels of transportation noise. The contention is that this association is largely owing to an increase in stress-related biomarkers that are thought to be associated with CVD. Animal models have demonstrated that acute noise exposure is capable of triggering a stress response; however, similar studies using chronic noise models are less common...
September 2017: Noise & Health
https://www.readbyqxmd.com/read/28936927/-you-ve-gotta-be-that-tough-crust-exterior-man-depression-and-suicide-in-rural-based-men
#19
Genevieve Creighton, John Oliffe, John Ogrodniczuk, Blye Frank
Suicide rates in Canada are highest among rural men. Drawing on photovoice interviews with 13 women and two men living in a small rural Canadian town who lost a man to suicide, we inductively derived three themes to describe how contextual factors influence rural men's experiences of depression and responses to suicidal thoughts: (a) hiding depression and its cause, (b) manly self-medicating, and (c) mobilizing prevention. Further discussed is how gender relations and ideals of masculinity within rural milieu can inhibit men's acknowledgment of and help seeking for mental illness issues...
October 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28936854/-thinking-on-development-of-shanxi-astragali-radix-industry
#20
Xue-Mei Qin, Ai-Ping Li, Ke Li, An-Ping Li, Lu-Hong Ning
Shanxi, a traditional production area to produce genuine Astragali Radix of high quality, has experienced major changes in the pattern of resources. This area once accounted for half of Astragali Radix industry, but now only serves as the largest supply area of traditional wild Astragali Radix. Furthermore, the strategic position of Shanxi Astragali Radix industry will become more prominent and more important to economic and social development in face of the diversity of market demands, especially for the strong demands of high-end Astragali Radix...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
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