keyword
MENU ▼
Read by QxMD icon Read
search

Central access

keyword
https://www.readbyqxmd.com/read/29450650/access-to-the-cns-biomarker-strategies-for-dopaminergic-treatments
#1
REVIEW
Willem Johan van den Brink, Semra Palic, Isabelle Köhler, Elizabeth Cunera Maria de Lange
Despite substantial research carried out over the last decades, it remains difficult to understand the wide range of pharmacological effects of dopaminergic agents. The dopaminergic system is involved in several neurological disorders, such as Parkinson's disease and schizophrenia. This complex system features multiple pathways implicated in emotion and cognition, psychomotor functions and endocrine control through activation of G protein-coupled dopamine receptors. This review focuses on the system-wide effects of dopaminergic agents on the multiple biochemical and endocrine pathways, in particular the biomarkers (i...
February 15, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29449798/dna-methylation-master-or-slave-of-neural-fate-decisions
#2
REVIEW
Stefan H Stricker, Magdalena Götz
The pristine formation of complex organs depends on sharp temporal and spatial control of gene expression. Therefore, epigenetic mechanisms have been frequently attributed a central role in controlling cell fate determination. A prime example for this is the first discovered and still most studied epigenetic mark, DNA methylation, and the development of the most complex mammalian organ, the brain. Recently, the field of epigenetics has advanced significantly: new DNA modifications were discovered, epigenomic profiling became widely accessible, and methods for targeted epigenomic manipulation have been developed...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29447952/insulin-enhances-gaba-a-receptor-mediated-inhibitory-currents-in-rat-central-amygdala-neurons
#3
Sergiy V Korol, Atieh Tafreshiha, Amol K Bhandage, Bryndis Birnir, Zhe Jin
Insulin, a pancreatic hormone, can access the central nervous system, activate insulin receptors distributed in selective brain regions and affect various cellular functions such as neurotransmission. We have previously shown that physiologically relevant concentration of insulin potentiates the GABA A receptor-mediated tonic inhibition and reduces excitability of rat hippocampal CA1 neurons. The central nucleus of the amygdala (CeA) comprises heterogeneous neuronal populations that can respond to hormonal stimulus...
February 12, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29447661/ethical-quandaries-around-expanded-carrier-screening-in-third-party-reproduction
#4
REVIEW
Heidi Mertes, Steven R Lindheim, Guido Pennings
Although current screening methods of gamete donors are capable of reducing the incidence of genetic anomalies in donor offspring below general population levels, targeted screening for a large number of conditions (expanded carrier screening or ECS) could be considered as part of the routine selection procedure for gamete donors. There are, however, important drawbacks to its practical implementation. Excluding all carriers of severe recessive monogenic pediatric disorders would disqualify virtually all donors, and other approaches negatively affect cost (and therefore access), present dilemmas in regard to disclosure of genetic findings, and/or overburden the intended parents...
February 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29446236/help-me-if-you-can-psychological-distance-and-help-seeking-intentions-in-employee-supervisor-relations
#5
Izhak Berkovich, Ori Eyal
Social support at work is considered useful in treating job-related stress, and supervisors' emotional support has been found to be the most effective source of support at work. But an understanding of what elements make employees use supervisors as a source of emotional support is lacking. The present qualitative study included in-depth interviews with 24 teachers and 12 principals and a focus group with 12 school counsellors. The findings pointed at 2 groups of determinants of subordinates' intentions of asking socioemotional help from supervisors...
February 15, 2018: Stress and Health: Journal of the International Society for the Investigation of Stress
https://www.readbyqxmd.com/read/29445972/design-and-validation-of-an-osteochondral-bioreactor-for-the-screening-of-treatments-for-osteoarthritis
#6
Derek A Nichols, Inderbir S Sondh, Steven R Litte, Paolo Zunino, Riccardo Gottardi
Bioreactors are systems that can be used to monitor the response of tissues and cells to candidate drugs. Building on the experience developed in the creation of an osteochondral bioreactor, we have designed a new 3D printed system, which allows optical access to the cells throughout testing for in line monitoring. Because of the use of 3D printing, the fluidics could be developed in the third dimension, thus maintaining the footprint of a single well of a typical 96 well plate. This new design was optimized to achieve the maximum fluid transport through the central chamber, which corresponds to optimal nutrient or drug exposure...
February 14, 2018: Biomedical Microdevices
https://www.readbyqxmd.com/read/29445639/the-association-between-adverse-events-in-the-last-5-years-and-the-rate-of-breast-cancer
#7
Babak Rastegarimehr, Atefeh Zahedi, Parvin Yavari, Mohammad Hassan Lotfi, Moslem Taheri Soodejani
Background: This study was conducted in Yazd Province, Central Iran aimed to investigate the relationship between adverse events and breast cancer during 2012-2014. Methods: Hospital-based case-control study of 150 women with breast cancer and 150 healthy women (did not have breast cancer) was conducted. Sampling was performed in the form of accessibility. Data collection was conducted using questionnaire through interview. The collected data were entered into SPSS for statistical analysis...
February 2018: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29444337/social-network-analysis-presenting-an-underutilised-method-for-nursing-research
#8
James Michael Parnell, Jennifer C Robinson
AIM: This paper introduces social network analysis as a versatile method with many applications in nursing research. BACKGROUND: Social networks have been studied for years in many social science fields. The methods continue to advance but remain unknown to most nursing scholars. DESIGN: Discussion paper. DATA SOURCES: English language and interpreted literature was searched from Ovid Healthstar, CINAHL, PubMed Central, Scopus and hard copy texts from 1965-2017...
February 14, 2018: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/29444206/grimmiaceae-in-the-early-cretaceous-tricarinella-crassiphylla-gen-et-sp-nov-and-the-value-of-anatomically-preserved-bryophytes
#9
Adolfina Savoretti, Alexander C Bippus, Ruth A Stockey, Gar W Rothwell, Alexandru M F Tomescu
Background and Aims: Widespread and diverse in modern ecosystems, mosses are rare in the fossil record, especially in pre-Cenozoic rocks. Furthermore, most pre-Cenozoic mosses are known from compression fossils, which lack detailed anatomical information. When preserved, anatomy significantly improves resolution in the systematic placement of fossils. Lower Cretaceous (Valanginian) deposits on Vancouver Island (British Columbia, Canada) contain a diverse anatomically preserved flora including numerous bryophytes, many of which have yet to be characterized...
February 10, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29444109/population-structure-of-the-npgs-senegalese-sorghum-collection-and-its-evaluation-to-identify-new-disease-resistant-genes
#10
Hugo E Cuevas, Louis K Prom, Giseiry Rosa-Valentin
Sorghum germplasm from West and Central Africa is cultivated in rainy and high humidity regions and is an important source of resistance genes to fungal diseases. Mold and anthracnose are two important biotic constraints to sorghum production in wet areas worldwide. Here, 158 National Plant Germplasm System (NPGS) accessions from Senegal were evaluated for agronomic traits, anthracnose, and grain mold resistance at two locations, and genetically characterized according to 20 simple sequence repeat markers. A total of 221 alleles were amplified with an average of 11 alleles per locus...
2018: PloS One
https://www.readbyqxmd.com/read/29443413/vascular-access-for-therapeutic-plasma-exchange
#11
REVIEW
Tina S Ipe, Marisa B Marques
Therapeutic plasma exchange is an apheresis modality in which plasma is separated from the blood cellular components ex vivo, discarded, and replaced with an isosmotic fluid (most commonly 5% albumin) to maintain appropriate oncotic pressure in the patient. Therapeutic plasma exchange is used in the treatment of many diseases and indications. The recent seventh edition of the American Society for Apheresis guidelines indicates approximately 72 diseases and 116 indications for which therapeutic plasma exchange may be effective...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29443412/an-ex-vivo-comparison-of-vascular-access-devices-used-in-extracorporeal-photopheresis
#12
Jeffrey Szymanski, Priyank Shah, Marian Dynis, Donna Mansfield, Connie Hamilton, George Despotis
BACKGROUND: Central venous access devices are commonly used in extracorporeal photopheresis, but their performance has not been systematically evaluated. The primary objective of this study was to compare pressures at various flow rates for central venous access devices in an ex vivo simulation of photopheresis. STUDY DESIGN AND METHODS: Diluted, heparinized red blood cells were circulated through central access devices in series with a photopheresis system, and pressures at several flow rates were recorded...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29443411/intravascular-access-devices-from-an-interventional-radiology-perspective-indications-implantation-techniques-and-optimizing-patency
#13
REVIEW
Kristen A Lee, Raja S Ramaswamy
Central venous access has become invaluable in the treatment of patients with a wide array of acute and chronic disease entities. Central venous catheters provide durable, short-term and long-term access solutions while saving the patient from repeated peripheral needle sticks. Central venous catheters include: non-tunneled central venous catheters, tunneled central venous catheters, and port catheters. Typically, the placement of a central venous catheter is performed by Vascular and Interventional Radiologists...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29443410/a-tale-of-two-ports-an-in-vitro-comparison-of-flow-characteristics-for-therapeutic-plasma-exchange
#14
Nicole De Simone, Ravi Sarode
Tunneled central venous catheters with ports are increasingly used for therapeutic apheresis procedures. Vortex ports have been used as access for therapeutic apheresis procedures, but are not ideal for therapeutic plasma exchange (TPE) procedures due to lower flow rates. We performed an in vitro experiment to compare flow characteristics of the single-lumen Vortex port (AngioDynamics) with the single-lumen TidalPort (Norfolk Medical). We used expired red blood cell units and adjusted the hematocrit to 40% with normal saline in a 2-L bag...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29443407/implanted-vascular-access-device-options-a-focused-review-on-safety-and-outcomes
#15
REVIEW
Merilda O Blanco-Guzman
Implantable vascular access devices are frequently used in patients who have poor peripheral venous access. These devices can be partially implanted as tunneled and nontunneled central catheters, or they can be fully implanted as ports. Compared with long-term catheters, implanted ports have lower infection rates and improved perceptions of quality of life, but complications still occur in 2% to 18% of patients, frequently requiring removal of the device. Since the conception of implantable vascular access device ports, numerous advances in port design, materials, and techniques for implantation and care have been developed with the goal of overcoming frequent complications...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29443405/vascular-access-considerations-for-extracorporeal-photopheresis
#16
REVIEW
Jill Adamski
Extracorporeal photopheresis is an immunomodulatory therapy indicated for patients with cutaneous T-cell lymphoma, graft-versus-host disease, and heart or lung allograft rejection. Whole blood from the patient is drawn into the photopheresis instrument where it is separated into its components. Plasma, red blood cells, and the treated buffy coat are subsequently returned to the patient. Consistent, adequate blood flow is necessary to successfully complete the procedure. Vascular access options for photopheresis include peripheral vein cannulation, tunneled central venous catheters, and subcutaneous ports...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29439080/risk-factors-for-difficult-peripheral-venous-cannulation-in-hospitalised-patients-protocol-for-a-multicentre-case-control-study-in-48-units-of-eight-public-hospitals-in-spain
#17
Miguel Angel Rodriguez-Calero, Ismael Fernandez-Fernandez, Luis Javier Molero-Ballester, Catalina Matamalas-Massanet, Luis Moreno-Mejias, Joan Ernest de Pedro-Gomez, Ian Blanco-Mavillard, Jose Miguel Morales-Asencio
INTRODUCTION: Patients with difficult venous access experience undesirable effects during healthcare, such as delayed diagnosis and initiation of treatment, stress and pain related to the technique and reduced satisfaction. This study aims to identify risk factors with which to model the appearance of difficulty in achieving peripheral venous puncture in hospital treatment. METHODS AND ANALYSIS: Case-control study. We will include adult patients requiring peripheral venous cannulation in eight public hospitals, excluding those in emergency situations and women in childbirth or during puerperium...
February 8, 2018: BMJ Open
https://www.readbyqxmd.com/read/29438386/doxycycline-inhibits-experimental-cerebral-malaria-by-reducing-inflammatory-immune-reactions-and-tissue-degrading-mediators
#18
Kim E Schmidt, Janina M Kuepper, Beatrix Schumak, Judith Alferink, Andrea Hofmann, Shanshan W Howland, Laurent Rénia, Andreas Limmer, Sabine Specht, Achim Hoerauf
Malaria ranks among the most important infectious diseases worldwide and affects mostly people living in tropical countries. Mechanisms involved in disease progression are still not fully understood and specific treatments that might interfere with cerebral malaria (CM) are limited. Here we show that administration of doxycycline (DOX) prevented experimental CM (ECM) in Plasmodium berghei ANKA (PbA)-infected C57BL/6 wildtype (WT) mice in an IL-10-independent manner. DOX-treated mice showed an intact blood-brain barrier (BBB) and attenuated brain inflammation...
2018: PloS One
https://www.readbyqxmd.com/read/29438259/band-3-function-and-dysfunction-in-a-structural-context
#19
Yazan M Abbas, Ashley M Toye, John L Rubinstein, Reinhart A F Reithmeier
PURPOSE OF REVIEW: Current research on the human band 3 glycoprotein, the red cell chloride/bicarbonate anion exchanger (AE1), is highlighted and placed within a structural context. RECENT FINDINGS: The determination of the crystal structure of the membrane domain of human band 3, the founding member of the solute carrier 4 (SLC4) family of bicarbonate transporters, is a major breakthrough toward understanding the mechanism of action of this membrane transport protein, its interaction with partner proteins, and how mutations linked to disease affect its ability to fold and function...
February 12, 2018: Current Opinion in Hematology
https://www.readbyqxmd.com/read/29437381/optimizing-nanoelectrode-arrays-for-scalable-intracellular-electrophysiology
#20
Jeffrey Abbott, Tianyang Ye, Donhee Ham, Hongkun Park
Electrode technology for electrophysiology has a long history of innovation, with some decisive steps including the development of the voltage-clamp measurement technique by Hodgkin and Huxley in the 1940s and the invention of the patch clamp electrode by Neher and Sakmann in the 1970s. The high-precision intracellular recording enabled by the patch clamp electrode has since been a gold standard in studying the fundamental cellular processes underlying the electrical activities of neurons and other excitable cells...
February 13, 2018: Accounts of Chemical Research
keyword
keyword
84549
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"