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https://www.readbyqxmd.com/read/28654615/evidence-based-medicine-management-of-metacarpal-fractures
#1
Victor W Wong, James P Higgins
LEARNING OBJECTIVES: After reading this article, the participant should be able to: 1. Understand metacarpal anatomy and its role in fracture pathology. 2. Determine when surgical intervention is needed for metacarpal fractures. 3. Understand the various treatment options for surgical fixation of metacarpal fractures. 4. Describe the role for external fixation in managing difficult metacarpal fractures. BACKGROUND: Metacarpal fractures are common injuries that plastic surgeons should be able to evaluate and treat...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28654582/predictors-classification-and-management-of-umbilical-complications-in-diep-flap-breast-reconstruction
#2
Min-Jeong Cho, Sumeet S Teotia, Nicholas T Haddock
BACKGROUND: In recent years, the deep inferior epigastric perforator (DIEP) flap has become the workhorse flap for autologous breast reconstruction. Despite increased reports on DIEP flaps, umbilical complications have not been previously studied. The aesthetics of the umbilicus dictates the beauty of the abdomen, and it is critical for plastic surgeons to minimize the scarring of the umbilicus. In this study, we retrospectively reviewed patients who underwent DIEP flaps to determine the predictors of umbilical complications, and created a classification system of these wounds...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28654481/stepping-up-to-rethink-the-future-of-rehabilitation-iv-step-considerations-and-inspirations
#3
Teresa Jacobson Kimberley, Iona Novak, Lara Boyd, Eileen Fowler, Deborah Larsen
BACKGROUND AND PURPOSE: The IV STEP conference challenged presenters and participants to consider the state of science in rehabilitation, highlighting key area of progress since the previous STEP conference related to prediction, prevention, plasticity, and participation in rehabilitation. KEY POINTS: Emerging from the thought-provoking discussions was recognition of the progress we have made as a profession and a call for future growth. In this summary article, we present a recap of the key points and call for action...
July 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28654476/coupling-timing-of-interventions-with-dose-to-optimize-plasticity-and-participation-in-pediatric-neurologic-populations
#4
Mary E Gannotti
The purpose of this article is to propose that coupling of timing of interventions with dosing of interventions optimizes plasticity and participation in pediatric neurologic conditions, specifically cerebral palsy. Dosing includes frequency, intensity, time per session, and type of intervention. Interventions focus on body structures and function and activity and participation, and both are explored. Known parameters for promoting bone, muscle, and brain plasticity and evidence supporting critical periods of growth during development are reviewed...
July 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28650560/uncovering-the-role-of-brain-derived-neurotrophic-factor-bdnf-trkb-signaling-in-head-and-neck-malignancies
#5
REVIEW
Juliana Kern de Moraes, Vivian Petersen Wagner, Felipe Paiva Fonseca, Pablo Agustin Vargas, Caroline Brunetto de Farias, Rafael Roesler, Manoela Domingues Martins
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family of growth factors that was first known as responsible for sustain the growth, function and plasticity of neural cells. BDNF exerts its effects by binding to the tyrosine kinase receptor B (TrkB). The BDNF/TrkB axis has been reported to be overexpressed in several neurogenic and non-neurogenic tumors. Its higher expression was associated with a poor prognosis to patients affected by different human malignancies, tumor growth, invasion and metastasis; epithelial-mesenchymal transition (EMT) and resistance to chemotherapy...
June 26, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28649760/immunometabolism-of-human-autoimmune-diseases-from-metabolites-to-extracellular-vesicles
#6
REVIEW
Paola de Candia, Veronica De Rosa, Vincenzo Gigantino, Gerardo Botti, Antonio Ceriello, Giuseppe Matarese
Immunometabolism focuses on the mechanisms regulating the impact of metabolism on lymphocyte activity and autoimmunity outbreak. The adipose tissue is long known to release adipokines, either pro- or anti-inflammatory factors bridging nutrition and immune function. More recently, adipocytes were discovered to also release extracellular vesicles (EVs) containing a plethora of biological molecules, including metabolites and microRNAs, which can regulate cell function/metabolism in distant tissues, suggesting that immune regulatory function by the adipose tissue may be far more complex than originally thought...
June 26, 2017: FEBS Letters
https://www.readbyqxmd.com/read/28649228/ras-activity-tunes-the-period-and-modulates-the-entrainment-of-the-suprachiasmatic-clock
#7
REVIEW
Tsvetan Serchov, Rolf Heumann
The small GTPase Ras is a universal eukaryotic cytoplasmic membrane-anchored protein, which regulates diverse downstream signal transduction pathways that play an important role in the proper functioning of neurons. Ras activity is a central regulator of structural and functional synaptic plasticity in the adult nervous system, where it channels neuronal responses to various extracellular cues allowing the organism to adapt to complex environmental stimuli. The suprachiasmatic nucleus (SCN) is the principle pacemaker of the circadian clock, and the circadian and photic regulation of Ras activity in the SCN is an important modulator of the clockwork...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28648581/is-long-term-post-operative-monitoring-of-microsurgical-flaps-still-necessary
#8
Giovanni Zoccali, Alexandra Molina, Jian Farhadi
Autologous microsurgical flap reconstruction has become commonplace in most plastic surgery units, and the success rates of this procedure have markedly increased over recent years. However, the possibility of flap failure still needs to be considered. A review of the literature reveals that the critical period for flap-threatening complications is the first 24-48 post-operative hours; however, the window for the onset of these complications remains open for up to 7 days post-operatively. In this study, we focus on the timing of flap complications, aiming to elucidate the time period over which meticulous flap monitoring can positively contribute to flap salvage rates...
June 1, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28648580/flowmetry-evolution-in-microvascular-surgery-a-systematic-review
#9
REVIEW
Georgios Pafitanis, Maria Raveendran, Simon Myers, Ali M Ghanem
This review aims to provide a summary of the flowmeter devices used in microvascular surgery and assesses their contribution to improving the clinical outcomes of free tissue transfer. Flowmeters are widely accepted as the standard method of intraoperative assessment of the patency of coronary vascular anastomoses, providing thresholds that predict outcome. There is limited evidence regarding the use of flow measurements in plastic surgery microvascular anastomoses; however, flowmetry appears to have some role in postoperative free flap monitoring and prevention of complications...
May 20, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28646556/injury-induced-maladaption-and-dysregulation-of-calcium-channel-alpha-2-delta-subunit-proteins-and-its-contribution-to-neuropathic-pain-development
#10
REVIEW
Nian Gong, John Park, Z David Luo
Voltage gated calcium channels (VGCCs) play important roles in physiological functions including modulations of neurotransmitter release, neuronal network activities, intracellular signaling pathways, and gene expression. Some pathological conditions, including nerve injuries, can cause dysregulation of VGCCs and their subunits. This in turn can lead to functional maladaption of VGCCs and their subunits, which can contribute to development of disorders such as pain sensations. This review summarized recent findings related to maladaptive changes of dysregulated VGCC alpha-2-delta-1 subunit (Cav α2 δ1 ) with a focus on exploration of mechanisms underlying contribution of Cav α2 δ1 to pain signal transduction...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28645300/bacterial-ghosts-as-adjuvants-mechanisms-and-potential
#11
REVIEW
Irshad A Hajam, Pervaiz A Dar, Gayeon Won, John Hwa Lee
Bacterial ghosts (BG) are empty cell envelopes derived from Gram-negative bacteria. They contain many innate immunostimulatory agonists, and are potent activators of a broad range of cell types involved in innate and adaptive immunity. Several considerable studies have demonstrated the effectiveness of BG as adjuvants as well as their ability to induce proinflammatory cytokine production by a range of immune and non-immune cell types. These proinflammatory cytokines trigger a generalized recruitment of T and B lymphocytes to lymph nodes that maximize the chances of encounter with their cognate antigen, and subsequent elicitation of potent immune responses...
June 24, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28645086/toddler-exposure-to-flame-retardant-chemicals-magnitude-health-concern-and-potential-risk-or-protective-factors-of-exposure-observational-studies-summarized-in-a-systematic-review
#12
REVIEW
Eva J Sugeng, Marijke de Cock, Linda J Schoonmade, Margot van de Bor
Endocrine disrupting flame retardant (FR) chemicals form a human health concern, that is investigated mostly from the perspective of adult- and early life exposure. No overview of studies on toddler exposure and health effects exist. However, toddlerhood is a critical developmental period and toddlers are at increased risk for exposure because of their age-specific behavior. This systematic review encompasses toddler FR exposure studies in three countries, associated health effects and potential environmental, demographic, or behavioral risk- or protective factors for toddler exposure...
June 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28644437/more-alive-than-dead-non-apoptotic-roles-for-caspases-in-neuronal-development-plasticity-and-disease
#13
REVIEW
Amrita Mukherjee, Darren W Williams
Nervous systems are arguably the most fascinating and complex structures in the known universe. How they are built, changed by experience and then degenerate are some of the biggest questions in biology. Regressive phenomena, such as neuron pruning and programmed cell death, have a key role in the building and maintenance of the nervous systems. Both of these cellular mechanisms deploy the caspase family of protease enzymes. In this review, we highlight the non-apoptotic function of caspases during nervous system development, plasticity and disease, particularly focussing on their role in structural remodelling...
June 23, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28643166/structural-disorder-in-plant-proteins-where-plasticity-meets-sessility
#14
REVIEW
Alejandra A Covarrubias, Cesar L Cuevas-Velazquez, Paulette S Romero-Pérez, David F Rendón-Luna, Caspar C C Chater
Plants are sessile organisms. This intriguing nature provokes the question of how they survive despite the continual perturbations caused by their constantly changing environment. The large amount of knowledge accumulated to date demonstrates the fascinating dynamic and plastic mechanisms, which underpin the diverse strategies selected in plants in response to the fluctuating environment. This phenotypic plasticity requires an efficient integration of external cues to their growth and developmental programs that can only be achieved through the dynamic and interactive coordination of various signaling networks...
June 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28642692/beyond-neuronal-activity-markers-select-immediate-early-genes-in-striatal-neuron-subtypes-functionally-mediate-psychostimulant-addiction
#15
REVIEW
Ramesh Chandra, Mary Kay Lobo
Immediate early genes (IEGs) were traditionally used as markers of neuronal activity in striatum in response to stimuli including drugs of abuse such as psychostimulants. Early studies using these neuronal activity markers led to important insights in striatal neuron subtype responsiveness to psychostimulants. Such studies have helped identify striatum as a critical brain center for motivational, reinforcement and habitual behaviors in psychostimulant addiction. While the use of IEGs as neuronal activity markers in response to psychostimulants and other stimuli persists today, the functional role and implications of these IEGs has often been neglected...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28642678/a-cold-blooded-view-on-adult-neurogenesis
#16
REVIEW
Anabel R Simões, Christa Rhiner
During brain development, highly complex and interconnected neural circuits are established. This intricate wiring needs to be robust to faithfully perform adult brain function throughout life, but at the same time offer room for plasticity to integrate new information. In the mammalian brain, adult-born neurons are produced in restricted niches harboring neural stem cells. In the fruit fly Drosophila, low-level adult neurogenesis arising from a dispersed population of neural progenitors has recently been detected in the optic lobes...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28641520/try-to-remember-interplay-between-memory-and-substance-use-disorder
#17
Rashidi Mohamed Pakri Mohamed, Jaya Kumar, Ernie Yap, Isa Naina Mohamed, Hatta Sidi, Raja Lope Adam, Srijit Das
Memories associated with substance use disorders, or substance-associated cues increase the likelihood of craving and relapse during abstinence. There is growing consensus that manipulation of synaptic plasticity may reduce the strength of substance abuse-related memories. On the biological front, there are new insights that suggest memories associated with substance use disorder may follow unique neurobiological pathways that render them more accessible to pharmacological intervention. In parallel to this, research in neurochemistry has identified several potential candidate molecules that could influence the formation and maintenance of long-term memory...
June 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28641118/mechanisms-for-fast-cell-migration-in-complex-environments
#18
REVIEW
Pablo Vargas, Lucie Barbier, Pablo José Sáez, Matthieu Piel
Cell migration depends on a combination of the cell's intrinsic capacity to move and the proper interpretation of external cues. This multistep process enables leukocytes to travel long distances in organs in just a few hours. This fast migration is partly due to the leukocytes' high level of plasticity, which helps them to adapt to a changing environment. Here, we review recent progress in understanding the mechanisms used by leukocytes to move rapidly and efficiently in intricate anatomical landscapes. We shall focus on specific cytoskeletal rearrangements used by neutrophils and dendritic cells to migrate within confined environments...
June 19, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28640732/do-nurse-staffing-levels-affect-patient-mortality-in-acute-secondary-care
#19
Barry Hill
This systematic literature review explores and considers whether registered nurse staffing levels affect patient mortality in acute secondary care settings. A discussion makes particular reference to the philosophical foundations of contrasting research approaches used within the literature. At the time of writing, the author was a modern matron for surgery, managing the ear, nose and throat; head and neck; airway; and reconstructive plastic surgery services in a large acute teaching hospital in central London...
June 22, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28639959/3d-printing-current-use-in-facial-plastic-and-reconstructive-surgery
#20
Tsung-Yen Hsieh, Raj Dedhia, Brian Cervenka, Travis T Tollefson
PURPOSE OF REVIEW: To review the use of three-dimensional (3D) printing in facial plastic and reconstructive surgery, with a focus on current uses in surgical training, surgical planning, clinical outcomes, and biomedical research. To evaluate the limitations and future implications of 3D printing in facial plastic and reconstructive surgery. RECENT FINDINGS: Studies reviewed demonstrated 3D printing applications in surgical planning including accurate anatomic biomodels, surgical cutting guides in reconstruction, and patient-specific implants fabrication...
July 20, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
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