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https://www.readbyqxmd.com/read/29166242/dynamism-of-an-astrocyte-in-vivo-perspectives-on-identity-and-function
#1
Kira E Poskanzer, Anna V Molofsky
Astrocytes are an abundant and evolutionarily conserved central nervous system cell type. Despite decades of evidence that astrocytes are integral to neural circuit function, it seems as though astrocytic and neuronal biology continue to advance in parallel to each other, to the detriment of both. Recent advances in molecular biology and optical imaging are being applied to astrocytes in new and exciting ways but without fully considering their unique biology. From this perspective, we explore the reasons that astrocytes remain enigmatic, arguing that their responses to neuronal and environmental cues shape form and function in dynamic ways...
November 20, 2017: Annual Review of Physiology
https://www.readbyqxmd.com/read/29153172/a-100-year-review-metabolic-health-indicators-and-management-of-dairy-cattle
#2
T R Overton, J A A McArt, D V Nydam
Our aim in this Journal of Dairy Science centennial review is to describe the evolution of focus on metabolic indicators, from discovery and description to evaluation at the individual cow and subsequently herd levels, over the past 100 yr. Furthermore, we discuss current and future technologies that will be used in the dairy industry to utilize these indicators widely going forward. Knowledge of chemical changes in various fluids (e.g., blood, urine, and milk) accompanying numerous metabolic disease states in the dairy cow has existed since almost the beginning of the Journal of Dairy Science 100 yr ago...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29031791/biofeedback-in-dysphonia-progress-and-challenges
#3
Geová Oliveira de Amorim, Patrícia Maria Mendes Balata, Laís Guimarães Vieira, Thaís Moura, Hilton Justino da Silva
INTRODUCTION: There is evidence that all the complex machinery involved in speech acts along with the auditory system, and their adjustments can be altered. OBJECTIVE: To present the evidence of biofeedback application for treatment of vocal disorders, emphasizing the muscle tension dysphonia. METHODS: A systematic review was conducted in Scielo, Lilacs, PubMed and Web of Sciences databases, using the combination of descriptors, and admitting as inclusion criteria: articles published in journals with editorial committee, reporting cases or experimental or quasi-experimental research on the use of biofeedback in real time as additional source of treatment monitoring of muscle tension dysphonia or for vocal training...
August 19, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28991760/centenary-of-the-birth-of-academician-prof-dr-isak-tadzer-founder-of-the-pathophysiology-and-nuclear-medicine-in-macedonia
#4
Borislav Karanfilski
Academician Prof. Dr. Isak Tadzer was born a hundred years ago on December 24, 1916 in Sofia. He completed the primary and secondary education at the German College in Sofia. In 1935 he began his studies at the Medical Faculty in Vienna, which he had to stop because of the annexation of Austria to Germany in 1938. He returned to Bulgaria where he continued his studies and graduated from the Medical Faculty in Sofia in 1941. During the War, 1941-1944, he was forcedly mobilized and he worked as a doctor in several villages...
September 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/28952156/positive-expiratory-pressure-therapy-versus-other-airway-clearance-techniques-for-bronchiectasis
#5
REVIEW
Annemarie L Lee, Angela T Burge, Anne E Holland
BACKGROUND: People with bronchiectasis experience chronic cough and sputum production and require the prescription of airway clearance techniques (ACTs). A common type of ACT prescribed is positive expiratory pressure (PEP) therapy. A previous review has suggested that ACTs including PEP therapy are beneficial compared to no treatment in people with bronchiectasis. However, the efficacy of PEP therapy in a stable clinical state or during an acute exacerbation compared to other ACTs in bronchiectasis is unknown...
September 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28947825/untargeted-metabolomics-identifies-a-plasma-sphingolipid-related-signature-associated-with-lifestyle-intervention-in-prepubertal-children-with-obesity
#6
M J Leal-Witt, M Ramon-Krauel, S Samino, M Llobet, D Cuadras, J C Jimenez-Chillaron, O Yanes, C Lerin
OBJECTIVE: Childhood obesity is a strong risk factor for adult obesity and metabolic diseases, including type 2 diabetes and cardiovascular disease. Early lifestyle intervention in children with obesity reduces future disease risk. The objective of this study is to identify metabolic signatures associated with lifestyle intervention in prepubertal children with obesity. METHODS: Thirty-five prepubertal children (7-10 years) with obesity (body mass index (BMI)>2 standard deviations) were enrolled in the study and participated in a 6-month-long lifestyle intervention program...
August 17, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28888156/exploring-the-oxygen-supply-and-demand-framework-as-a-learning-tool-in-undergraduate-nursing-education
#7
Mary Gillespie, Eileen Shackell
In nursing education, physiological concepts are typically presented within a body 'systems' framework yet learners are often challenged to apply this knowledge in the holistic and functional manner needed for effective clinical decision-making and safe patient care. A nursing faculty addressed this learning challenge by developing an advanced organizer as a conceptual and integrative learning tool to support learners in diverse learning environments and practice settings. A mixed methods research study was conducted that explored the effectiveness of the Oxygen Supply and Demand Framework as a learning tool in undergraduate nursing education...
November 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/28621323/a-robust-methodology-for-the-quantitative-assessment-of-the-rat-jawbone-microstructure
#8
Marissa Chatterjee, Fernanda Faot, Cassia Correa, Joke Duyck, Ignace Naert, Katleen Vandamme
Micro-computed tomography can be applied for the assessment of the micro-architectural characteristics of the cortical and trabecular bones in either physiological or disease conditions. However, reports often lack a detailed description of the methodological steps used to analyse these images, such as the volumes of interest, the algorithms used for image filtration, the approach used for image segmentation, and the bone parameters quantified, thereby making it difficult to compare or reproduce the studies...
June 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28539087/artificial-intelligence-methodologies-and-their-application-to-diabetes
#9
Mercedes Rigla, Gema García-Sáez, Belén Pons, Maria Elena Hernando
In the past decade diabetes management has been transformed by the addition of continuous glucose monitoring and insulin pump data. More recently, a wide variety of functions and physiologic variables, such as heart rate, hours of sleep, number of steps walked and movement, have been available through wristbands or watches. New data, hydration, geolocation, and barometric pressure, among others, will be incorporated in the future. All these parameters, when analyzed, can be helpful for patients and doctors' decision support...
May 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28482329/endometrial-changes-during-ulipristal-acetate-use-a-systematic-review
#10
REVIEW
Inge De Milliano, Dominique Van Hattum, Johannes C F Ket, Judith A F Huirne, Wouter J K Hehenkamp
Ulipristal acetate is increasingly used for several clinical indications, like emergency contraception and pre-treatment of uterine fibroids. It has mixed progesterone agonist and antagonist effects in the myometrium and endometrium. Due to its progesterone antagonistic effect, an unopposed estrogen effect could occur which could cause (pre-)malignant lesions in the endometrium. Several studies have been performed to evaluate this possible increased risk for endometrial malignancies when using ulipristal acetate...
July 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28317515/howard-wilcox-haggard-and-the-institutionalization-of-modern-alcohol-studies
#11
Nicholas Allred, William Bejarano, Judit Ward
OBJECTIVE: This biographical sketch and accompanying bibliography provide a new look at Howard Wilcox Haggard, M.D., Ph.D., whose career highlights the consolidation of alcohol studies as a field in twentieth-century America. METHOD: The article relies in large part on the works of Haggard assembled for the bibliography project, supplemented by published and unpublished documents and records from collections at Rutgers University. RESULTS: Haggard began his career in respiratory physiology, influenced by his work on chemical weapons for the Army during the First World War...
March 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28301750/magnetic-resonance-spectroscopy-as-a-tool-for-assessing-macromolecular-structure-and-function-in-living-cells
#12
Conggang Li, Jiajing Zhao, Kai Cheng, Yuwei Ge, Qiong Wu, Yansheng Ye, Guohua Xu, Zeting Zhang, Wenwen Zheng, Xu Zhang, Xin Zhou, Gary Pielak, Maili Liu
Investigating the structure, modification, interaction, and function of biomolecules in their native cellular environment leads to physiologically relevant knowledge about their mechanisms, which will benefit drug discovery and design. In recent years, nuclear and electron magnetic resonance (NMR) spectroscopy has emerged as a useful tool for elucidating the structure and function of biomacromolecules, including proteins, nucleic acids, and carbohydrates in living cells at atomic resolution. In this review, we summarize the progress and future of in-cell NMR as it is applied to proteins, nucleic acids, and carbohydrates...
June 12, 2017: Annual Review of Analytical Chemistry
https://www.readbyqxmd.com/read/28268838/visualizing-patient-journals-by-combining-vital-signs-monitoring-and-natural-language-processing
#13
Adnan Vilic, John Asger Petersen, Karsten Hoppe, Helge B D Sorensen
This paper presents a data-driven approach to graphically presenting text-based patient journals while still maintaining all textual information. The system first creates a timeline representation of a patients' physiological condition during an admission, which is assessed by electronically monitoring vital signs and then combining these into Early Warning Scores (EWS). Hereafter, techniques from Natural Language Processing (NLP) are applied on the existing patient journal to extract all entries. Finally, the two methods are combined into an interactive timeline featuring the ability to see drastic changes in the patients' health, and thereby enabling staff to see where in the journal critical events have taken place...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259405/novel-approaches-to-assess-the-quality-of-fertility-data-stored-in-dairy-herd-management-software
#14
K Hermans, W Waegeman, G Opsomer, B Van Ranst, J De Koster, M Van Eetvelde, M Hostens
Scientific journals and popular press magazines are littered with articles in which the authors use data from dairy herd management software. Almost none of such papers include data cleaning and data quality assessment in their study design despite this being a very critical step during data mining. This paper presents 2 novel data cleaning methods that permit identification of animals with good and bad data quality. The first method is a deterministic or rule-based data cleaning method. Reproduction and mutation or life-changing events such as birth and death were converted to a symbolic (alphabetical letter) representation and split into triplets (3-letter code)...
May 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28227035/visualizing-patient-journals-by-combining-vital-signs-monitoring-and-natural-language-processing
#15
Adnan Vilic, John Asger Petersen, Karsten Hoppe, Helge B D Sorensen, Adnan Vilic, John Asger Petersen, Karsten Hoppe, Helge B D Sorensen, John Asger Petersen, Adnan Vilic, Karsten Hoppe, Helge B D Sorensen
This paper presents a data-driven approach to graphically presenting text-based patient journals while still maintaining all textual information. The system first creates a timeline representation of a patients' physiological condition during an admission, which is assessed by electronically monitoring vital signs and then combining these into Early Warning Scores (EWS). Hereafter, techniques from Natural Language Processing (NLP) are applied on the existing patient journal to extract all entries. Finally, the two methods are combined into an interactive timeline featuring the ability to see drastic changes in the patients' health, and thereby enabling staff to see where in the journal critical events have taken place...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224100/early-infant-male-circumcision-systematic-review-risk-benefit-analysis-and-progress-in-policy
#16
Brian J Morris, Sean E Kennedy, Alex D Wodak, Adrian Mindel, David Golovsky, Leslie Schrieber, Eugenie R Lumbers, David J Handelsman, John B Ziegler
AIM: To determine whether recent evidence-based United States policies on male circumcision (MC) apply to comparable Anglophone countries, Australia and New Zealand. METHODS: Articles in 2005 through 2015 were retrieved from PubMed using the keyword "circumcision" together with 36 relevant subtopics. A further PubMed search was performed for articles published in 2016. Searches of the EMBASE and Cochrane databases did not yield additional citable articles. Articles were assessed for quality and those rated 2+ and above according to the Scottish Intercollegiate Grading System were studied further...
February 8, 2017: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/28188199/back-to-the-future-revisiting-the-physiological-cost-of-negative-work-as-a-team-based-activity-for-exercise-physiology-students
#17
Matthew A Kilgas, Steven J Elmer
We implemented a team-based activity in our exercise physiology teaching laboratory that was inspired from Abbott et al.'s classic 1952 Journal of Physiology paper titled "The physiological cost of negative work." Abbott et al. connected two bicycles via one chain. One person cycled forward (muscle shortening contractions, positive work) while the other resisted the reverse moving pedals (muscle lengthening contractions, negative work), and the cost of work was compared. This study was the first to link human whole body energetics with isolated muscle force-velocity characteristics...
March 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/27904147/penile-constitutive-nitric-oxide-synthase-expression-in-rats-exposed-to-unpredictable-chronic-mild-stress-role-of-inflammation
#18
T D Şahin, Y Yazır, T Utkan, S S Göçmez, D Bayramgürler
Chronic psychological stress cause erectile dysfunction (ED). Considering recent evidence that tumor necrosis factor-α (TNF-α) levels are increased in serum of patients with ED, the present study investigated the effects of infliximab (a TNF-α blocker) on endothelial nitric oxide synthase (eNOS) and neuronal NOS (nNOS) immunoreactivity of rat penile corpus cavernosum in unpredictable chronic mild stress (UCMS). Male adult rats were randomly divided into three groups (n=8 per group): Control, UCMS and UCMS+infliximab...
March 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/27885692/physiologically-based-pharmacokinetic-model-for-ethyl-tertiary-butyl-ether-and-tertiary-butyl-alcohol-in-rats-contribution-of-binding-to-%C3%AE-2u-globulin-in-male-rats-and-high-exposure-nonlinear-kinetics-to-toxicity-and-cancer-outcomes
#19
Susan J Borghoff, Caroline Ring, Marcy I Banton, Teresa L Leavens
In cancer bioassays, inhalation, but not drinking water exposure to ethyl tertiary-butyl ether (ETBE), caused liver tumors in male rats, while tertiary-butyl alcohol (TBA), an ETBE metabolite, caused kidney tumors in male rats following exposure via drinking water. To understand the contribution of ETBE and TBA kinetics under varying exposure scenarios to these tumor responses, a physiologically based pharmacokinetic model was developed based on a previously published model for methyl tertiary-butyl ether, a structurally similar chemical, and verified against the literature and study report data...
May 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/27885153/karl-otto-landsteiner-1868-1943-physician-biochemist-immunologist
#20
Armond S Goldman, Frank C Schmalsteig
Karl Landsteiner applied the sciences of biochemistry, pathology, microbiology, and immunology in medical research to great success during the first half of the 20th century. Although he is principally known for elucidating the major blood group antigens A and B and their isoantibodies for which he was awarded the Nobel Prize in Physiology or Medicine, Landsteiner made many other important medical discoveries. In that respect, he ascertained that paralytic poliomyelitis was due to a virus, the pancreas was damaged in cystic fibrosis, simple chemicals called haptens were able to combine with antibodies, and the Rh antigen that was later found to be the principal cause of hemolytic anemia of the newborn was found in most humans...
November 24, 2016: Journal of Medical Biography
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