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https://www.readbyqxmd.com/read/28648749/transcriptome-profiling-of-3d-co-cultured-cardiomyocytes-and-endothelial-cells-under-oxidative-stress-using-a-photocrosslinkable-hydrogel-system
#1
Xiaoshan Yue, Aylin Acun, Pinar Zorlutuna
Myocardial infarction (MI) is one of the most common among cardiovascular diseases. Endothelial cells (ECs) are considered to have protective effects on cardiomyocytes (CMs) under stress conditions such as MI; however, the paracrine CM-EC crosstalk and the resulting endogenous cellular responses that could contribute to this protective effect are not thoroughly investigated. Here we created biomimetic synthetic tissues containing CMs and human induced pluripotent stem cell (hiPSC)-derived ECs (iECs), which showed improved cell survival compared to single cultures under conditions mimicking the aftermath of MI, and performed high-throughput RNA-sequencing to identify target pathways that could govern CM-iEC crosstalk and the resulting improvement in cell viability...
June 22, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28647727/patients-as-partners-in-enhanced-recovery-after-surgery-a-qualitative-patient-led-study
#2
Chelsia Gillis, Marlyn Gill, Nancy Marlett, Gail MacKean, Kathy GermAnn, Loreen Gilmour, Gregg Nelson, Tracy Wasylak, Susan Nguyen, Edamil Araujo, Sandra Zelinsky, Leah Gramlich
OBJECTIVES: Explore the experience of patients undergoing colorectal surgery within an Enhanced Recovery After Surgery (ERAS) programme. Use these experiential data to inform the development of a framework to support ongoing, meaningful patient engagement in ERAS. DESIGN: Qualitative patient-led study using focus groups and narrative interviews. Data were analysed iteratively using a Participatory Grounded Theory approach. SETTING: Five tertiary care centres in Alberta, Canada, following the ERAS programme...
June 24, 2017: BMJ Open
https://www.readbyqxmd.com/read/28632662/treatment-of-incomplete-jones-fractures-with-low-intensity-pulsed-ultrasound-lipus
#3
Tateishi Tomohiko, Tsuyoshi Nagase, Teruhiko Nakagawa, Tsuchiya Masamitsu
OBJECTIVE: Stress fractures of the proximal epiphysis of the fifth metatarsal bone (termed Jones fracture) frequently occur in both senior high-school-age and older contestant-level soccer players, and its incidence in Japanese soccer players is higher than that in European players. Surgery is most commonly indicated for a complete fracture, and about 3 months are required before the patient is able to return to the sport. We have performed a "Jones fracture screening" to reduce the incidence of these fractures...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28630478/assessment-of-the-role-of-intracranial-hypertension-and-stress-on-hippocampal-cell-apoptosis-and-hypothalamic-pituitary-dysfunction-after-tbi
#4
Huajun Tan, Weijian Yang, Chenggang Wu, Baolong Liu, Hao Lu, Hong Wang, Hua Yan
In recent years, hypopituitarism caused by traumatic brain injury (TBI) has been explored in many clinical studies; however, few studies have focused on intracranial hypertension and stress caused by TBI. In this study, an intracranial hypertension model, with epidural hematoma as the cause, was used to explore the physiopathological and neuroendocrine changes in the hypothalamic-pituitary axis and hippocampus. The results demonstrated that intracranial hypertension increased the apoptosis rate, caspase-3 levels and proliferating cell nuclear antigen (PCNA) in the hippocampus, hypothalamus, pituitary gland and showed a consistent rate of apoptosis within each group...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629581/impact-of-a-teamstepps-trauma-nurse-academy-at-a-level-1-trauma-center
#5
V Kristen Peters, Ellen M Harvey, Andi Wright, Jennifer Bath, Dan Freeman, Bryan Collier
PROBLEM: Nurses are crucial members of the team caring for the acutely injured trauma patient. Until recently, nurses and physicians gained an understanding of leadership and supportive roles separately. With the advent of a multidisciplinary team approach to trauma care, formal team training and simulation has transpired. METHODS: Since 2007, our Level I trauma system has integrated TeamSTEPPS (Team Strategies & Tools to Enhance Performance & Patient Safety; Agency for Healthcare Research and Quality, Rockville, MD) into our clinical care, joint training of nurses and physicians, using simulations with participation of all health care providers...
June 16, 2017: Journal of Emergency Nursing: JEN: Official Publication of the Emergency Department Nurses Association
https://www.readbyqxmd.com/read/28625441/the-protective-effects-of-dexmedetomidine-on-ischemic-brain-injury-a-meta-analysis
#6
REVIEW
Lianxiang Jiang, Meizhu Hu, Yan Lu, Ya Cao, Yan Chang, Zeping Dai
BACKGROUND: Intracranial lesions, trauma or surgery-related damage activate immune inflammation and neuroendocrine responses, causing ischemic brain injury. Studies have shown that inflammatory cascade mediated by neuroendocrine hormones and proinflammatory mediators is implicated in the pathophysiology of ischemic brain injury. Alpha2-adrenoceptor agonists, dexmedetomidine, is widely used as neuroprotectants in anesthesia practice. However, it is still lack of a comprehensive meta-analysis to evaluate the neuroprotection of dexmedetomidine against ischemic brain injury via suppressing these two physiological responses...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28624060/speed-dating-for-mentors-a-novel-approach-to-mentor-mentee-pairing-in-surgical-residency
#7
Akia D Caine, Jacob Schwartzman, Anastasia Kunac
BACKGROUND: Resident-resident mentoring offers significant benefits. Previous works have shown that the quality of the mentorship pairing is important, but techniques of pairing have seldom been described. We describe a system for mentor-mentee pairing that we call "Speed Dating for Mentors" (SDM). METHODS: The SDM activity took place in an academic general surgery residency program in the Northeast. Senior residents met with junior residents (JR) in 90-second intervals...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28619021/treatment-of-thoracolumbar-burst-fractures-by-short-segment-pedicle-screw-fixation-using-a-combination-of-two-additional-pedicle-screws-and-vertebroplasty-at-the-level-of-the-fracture-a-finite-element-analysis
#8
Jen-Chung Liao, Weng-Pin Chen, Hao Wang
BACKGROUND: Traditional one-above and one-below four-screw posterior short-segment instrumentation is used for unstable thoracolumbar burst fractures. However, this method has a high rate of implant failure and early loss of reduction. The purpose of this study was to use finite element (FE) analysis to determine the effect of treating thoracolumbar burst fractures by short-segment pedicle screw fixation using a combination of two additional pedicle screws and vertebroplasty at the level of the fracture...
June 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28616109/the-management-of-mixed-urinary-incontinence-in-women
#9
REVIEW
Blayne Welk, Richard J Baverstock
Mixed urinary incontinence is a common diagnosis among women with urinary leakage and is often present in women who are unable to characterize their incontinence. Research and optimized clinical treatment of these patients is limited by the challenges in objectively defining and stratifying this population. The evaluation of these patients should follow the same general principles as any assessment of any women with incontinence; however, it is essential to define whether urge or stress incontinence is the predominant symptom...
June 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28615962/sensitivity-to-pain-traumatization-scale-development-validation-and-preliminary-findings
#10
Joel Katz, Samantha R Fashler, Claire Wicks, M Gabrielle Pagé, Kaley M Roosen, Valery Kleiman, Hance Clarke
BACKGROUND: This article reports three studies describing the development and validation of the 12-item Sensitivity to Pain Traumatization Scale (SPTS-12). SPT refers to the anxiety-related cognitive, emotional, and behavioral reactions to pain that resemble the features of a traumatic stress reaction. METHODS: In Study 1, a preliminary set of 79 items was administered to 116 participants. The data were analyzed by using combined nonparametric and parametric item response theory resulting in a 12-item scale with a one-factor structure and good preliminary psychometric properties...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28615137/stress-measurement-in-surgeons-and-residents-using-a-smart-patch
#11
Mariska Weenk, Alexander P B Alken, Lucien J L P G Engelen, Sebastian J H Bredie, Tom H van de Belt, Harry van Goor
BACKGROUND: Stress may negatively affect surgeons' performance during surgical procedures, jeopardizing patient safety. For measuring stress, complex methods are used that cannot record stress real time. This study reports stress measurements in surgeons and residents using a novel patch sensor to identify activities and risk factors of stress. METHODS: In this explorative study, surgeons and residents wore the HealthPatch™ during all daily activities for 2-3 days...
June 6, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28611684/protective-role-for-lpa3-in-cardiac-hypertrophy-induced-by-myocardial-infarction-but-not-by-isoproterenol
#12
Lin Cai, Guangpu Fan, Fang Wang, Si Liu, Tiewei Li, Xiangfeng Cong, Jerold Chun, Xi Chen
Background: We previously reported that lysophosphatidic acid (LPA) promoted cardiomyocyte hypertrophy in vitro via one of its G protein-coupled receptor subtypes, LPA3. In this study, we examined the role of LPA3 in cardiac hypertrophy induced by isoproterenol (ISO) and myocardial infarction. Methods:In vitro, neonatal rat cardiomyocytes (NRCMs) were subjected to LPA3 knocked-down, or pretreated with a β-adrenergic receptor (β-AR) antagonist (propranolol) before LPA/ISO treatment. Cardiomyocyte size and hypertrophic gene (ANP, BNP) mRNA levels were determined...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28609324/results-of-the-2015-scoliosis-research-society-survey-on-single-versus-dual-attending-surgeon-approach-for-adult-spinal-deformity-surgery
#13
Justin K Scheer, Rajiv K Sethi, Lloyd A Hey, Michael O LaGrone, Malla Keefe, Henry E Aryan, Thomas J Errico, Vedat Deviren, Robert A Hart, Virginie Lafage, Frank Schwab, Michael D Daubs, Christopher P Ames
STUDY DESIGN: An electronic survey administered to Scoliosis Research Society (SRS) membership. OBJECTIVE: To characterize surgeon practices and views regarding the use of two attending surgeons for adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: The use of two experienced attending surgeons can decrease the operative time, estimated blood loss, and perioperative complication rates. However, the current practice patterns for the use of two attending surgeons remains unknown...
June 15, 2017: Spine
https://www.readbyqxmd.com/read/28608263/molecular-markers-of-dna-damage-and-repair-in-cervical-cancer-patients-treated-with-cisplatin-neoadjuvant-chemotherapy-an-exploratory-study
#14
Nilda E Real, Gisela N Castro, F Darío Cuello-Carrión, Claudia Perinetti, Hanna Röhrich, Niubys Cayado-Gutiérrez, Martin E Guerrero-Gimenez, Daniel R Ciocca
Neoadjuvant (or induction) chemotherapy can be used for cervical cancer patients with locally advanced disease; this treatment is followed by radical surgery and/or radiation therapy. Cisplatin is considered to be the most active platinum agent drug for this cancer, with a response rate of 20%. In order to understand how the cisplatin treatment affects the stress response, in this work, we performed an exploratory study to analyze a number of stress proteins before and after cisplatin neoadjuvant chemotherapy...
June 12, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28606823/alpha-lipoic-acid-attenuates-acute-neuroinflammation-and-long-term-cognitive-impairment-after-polymicrobial-sepsis
#15
Amanda Della Giustina, Mariana Pereira Goldim, Lucinéia Gainski Danielski, Drielly Florentino, Khiany Mathias, Leandro Garbossa, Aloir Neri Oliveira Junior, Maria Eduarda Fileti, Graciela Freitas Zarbato, Naiana da Rosa, Ana Olívia Martins Laurentino, Jucélia Jeremias Fortunato, Francielle Mina, Tatiani Bellettini-Santos, Josiane Budni, Tatiana Barichello, Felipe Dal-Pizzol, Fabricia Petronilho
Sepsis is a complication of an infection which imbalance the normal regulation of several organ systems, including the central nervous system (CNS). Evidence points towards inflammation and oxidative stress as major steps associated with brain dysfunction in sepsis. Thus, we investigated the α-lipoic acid (ALA) effect as an important antioxidant compound on brain dysfunction in rats. Wistar rats were subjected to sepsis by cecal ligation and perforation (CLP) or sham (control) and treated orally with ALA (200 mg/kg after CLP) or vehicle...
June 10, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28597366/finite-element-model-predicts-the-biomechanical-performance-of-cervical-disc-replacement-and-fusion-hybrid-surgery-with-various-geometry-of-ball-and-socket-artificial-disc
#16
Yang Li, Guy R Fogel, Zhenhua Liao, Weiqiang Liu
PURPOSE: Few finite element studies have investigated changes in cervical biomechanics with various prosthesis design parameters using hybrid surgery (HS), and none have investigated those combined different HS strategies. The aim of our study was to investigate the effect of ball-and-socket prosthesis geometry on the biomechanical performance of the cervical spine combined with two HS constructs. METHODS: Two HS strategies were conducted: (1) ACDF at C4-C5 and anterior cervical disc replacement (ACDR) at C5-C6 (ACDF/ACDR), and (2) ACDR/ACDF...
June 8, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28593199/analysis-of-instrumentation-failures-after-three-column-osteotomies-of-the-spine
#17
Niranjan Kavadi, Richard A Tallarico, William F Lavelle
BACKGROUND: Correction of fixed spinal imbalance in a sagittal and/or coronal plane frequently needs a tricolumnar wedge resection when the deformity is rigid. Complications associated with deformity correction surgery are pseudoarthrosis and implant failure located along the construct. The purposes of this study were to assess comparative rates of pseudoarthrosis (implant failure) at weaker points along lumbosacral junction and level of osteotomy, estimate overall incidence of implant failure, and comparatively analyze failures at different points along the construct...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28592749/dynamics-of-oxidative-stress-evoked-by-myocardial-ischemia-reperfusion-after-off-pump-coronary-artery-bypass-grafting-elucidated-by-bilirubin-oxidation
#18
Masaki Yamamoto, Hideaki Nishimori, Takashi Fukutomi, Tokio Yamaguchi, Kazumasa Orihashi
BACKGROUND: Revascularization therapy relieves myocardial ischemia, but can also result in ischemia-reperfusion injury caused by oxidative stress. However, the biokinetics of oxidative stress after myocardial ischemia-reperfusion are uncertain. This study aimed to evaluate the dynamics of oxidative stress after off-pump coronary artery bypass grafting (OPCAB) by measuring urinary biopyrrin levels. Biopyrrin is an oxidative metabolite of bilirubin thought to reflect oxidative stress, along with reactive nitrogen species (RNS)...
June 8, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28591178/unfolded-protein-response-plays-a-critical-role-in-heart-damage-after-myocardial-ischemia-reperfusion-in-rats
#19
Chengcheng Zhang, Yi Tang, Yanming Li, Liang Xie, Wei Zhuang, Jing Liu, Jianbin Gong
The unfolded protein response (UPR) plays a critical role in cell death mediated by ischemia/reperfusion (I/R) injury. However, little is known about the exact mechanism of UPR signaling pathways after myocardial I/R injury in rats. An attempt was therefore made to assess whether the myocardial I/R induced UPR, and which branch of UPR (ATF6, IRE1 and PERK) signal pathway was activated. Sprague-Dawley rats were pretreated with UPR stimulator dithiothreitol (DTT) and UPR inhibitor 4-phenylbutyrate (4PBA) and then subjected to myocardial I/R surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28589156/outcome-of-expedited-rotator-cuff-surgery-in-injured-workers-determinants-of-successful-recovery
#20
Helen Razmjou, Dragana Boljanovic, Sandra Lincoln, Richard Holtby, Stephen Gallay, Patrick Henry, Iona Macritchie, Cheryl Borthwick, Lauren Mayer, Carolyn Roknic, Deborah Shore, Allison Kamino, Julie Grossman, Joanne Hill, Gargi Singh, Niki Travers, Loraine Yanofsky, Marni Wilson, Shellina Sumar, Alicia Savona, Filomena De Medeiros, Helen Mann, Aisha Champsi, Stefanie Chau, Danielle Medeiros, Robin R Richards
BACKGROUND: Work-related rotator cuff injuries are a common cause of disability and employee time loss. PURPOSE: To examine the effectiveness of expedited rotator cuff surgery in injured workers who underwent rotator cuff decompression or repair and to explore the impact of demographic, clinical, and psychosocial factors in predicting the outcome of surgery. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Injured workers who were seen at a shoulder specialty program and who underwent expedited arthroscopic rotator cuff decompression or repair were observed for a period of 6 to 12 months based on their type of surgery and recovery trajectory...
May 2017: Orthopaedic Journal of Sports Medicine
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