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https://www.readbyqxmd.com/read/27905106/effects-of-release-procedures-on-the-primary-stress-response-and-post-release-survival-and-growth-of-hatchery-reared-spotted-seatrout-cynoscion-nebulosus
#1
T W Guest, C F Rakocinski, A N Evans, R B Blaylock
To help explain the apparent poor post-release success of hatchery-reared (HR) spotted seatrout Cynoscion nebulosus, this study examined the effects of handling, transport and release procedures on the stress response of two age classes [48 and 80 day post-hatch (dph)] of HR C. nebulosus, as measured by cortisol concentrations and the post-release survival and growth of 48 and 80 dph HR C. nebulosus. As a proxy for stress, tissue cortisol was measured at various times during the handling, tagging (80 dph), transport, acclimation and release process...
December 1, 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27903590/anterior-cruciate-ligament-derived-stem-cells-transduced-with-bmp2-accelerate-graft-bone-integration-after-acl-reconstruction
#2
Yohei Kawakami, Koji Takayama, Tomoyuki Matsumoto, Ying Tang, Bing Wang, Yutaka Mifune, James H Cummins, Ryan J Warth, Ryosuke Kuroda, Masahiro Kurosaka, Freddie H Fu, Johnny Huard
BACKGROUND: Strong graft-bone integration is a prerequisite for successful graft remodeling after reconstruction of the anterior cruciate ligament (ACL) using soft tissue grafts. Novel strategies to accelerate soft tissue graft-bone integration are needed to reduce the need for bone-tendon-bone graft harvest, reduce patient convalescence, facilitate rehabilitation, and reduce total recovery time after ACL reconstruction. HYPOTHESIS: The application of ACL-derived stem cells with enhanced expression of bone morphogenetic protein 2 (BMP2) onto soft tissue grafts in the form of cell sheets will both accelerate and improve the quality of graft-bone integration after ACL reconstruction in a rat model...
November 30, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27902747/joint-profiling-of-mirnas-and-mrnas-reveals-mirna-mediated-gene-regulation-in-the-g%C3%A3-ttingen-minipig-obesity-model
#3
Caroline M Junker Mentzel, Ferhat Alkan, Helle Keinicke, Mette J Jacobsen, Jan Gorodkin, Merete Fredholm, Susanna Cirera
Obesity and its comorbidities are an increasing challenge for both affected individuals and health care systems, worldwide. In obese individuals, perturbation of expression of both protein-coding genes and microRNAs (miRNA) are seen in obesity-relevant tissues (i.e. adipose tissue, liver and skeletal muscle). miRNAs are small non-coding RNA molecules which have important regulatory roles in a wide range of biological processes, including obesity. Rodents are widely used animal models for human diseases including obesity...
2016: PloS One
https://www.readbyqxmd.com/read/27896014/single-frame-rapid-autofocusing-for-brightfield-and-fluorescence-whole-slide-imaging
#4
Jun Liao, Liheng Bian, Zichao Bian, Zibang Zhang, Charmi Patel, Kazunori Hoshino, Yonina C Eldar, Guoan Zheng
A critical consideration for whole slide imaging (WSI) platform is to perform accurate autofocusing at high speed. Typical WSI systems acquire a z-stack of sample images and determine the best focal position by maximizing a figure of merit. This strategy, however, has suffered from several limitations, including low speed due to multiple image acquisitions, relatively low accuracy of focal plane estimation, short axial range for autofocusing, and difficulties in handling transparent samples. By exploring the autocorrelation property of the tissue sections, we report a novel single-frame autofocusing scheme to address the above challenges...
November 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27891292/cancer-stem-cells-cellular-plasticity-niche-and-its-clinical-relevance
#5
Gina Lee, Robert R Hall, Atique U Ahmed
Cancer handles an estimated 7.6 million deaths worldwide per annum. A recent theory focuses on the role Cancer Stem Cells (CSCs) in driving tumorigenesis and disease progression. This theory hypothesizes that a population of the tumor cell with similar functional and phenotypic characteristics as normal tissue stem cells are responsible for formation and advancement of many human cancers. The CSCs subpopulation can differentiate into non-CSC tumor cells and promote phenotypic and functional heterogeneity within the tumor...
October 2016: Journal of Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27884616/mechanical-properties-of-contact-lenses-the-contribution-of-measurement-techniques-and-clinical-feedback-to-50-years-of-materials-development
#6
REVIEW
Tarnveer Singh Bhamra, Brian J Tighe
PURPOSE: This review summarises the way in which mechanical property measurements combined with clinical perception have influenced the last half century of materials evolution in contact lens development. METHODS: Literature concerning the use of in-vitro testing in assessment of the mechanical behaviour of contact lenses, and the mutual deformation of the lens material and ocular tissue was examined. Tensile measurements of historic and available hydrogel lenses have been collected, in addition to manufacturer-generated figures for the moduli of commercial silicone hydrogel lenses...
November 21, 2016: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/27883935/liquid-fructose-in-western-diet-fed-mice-impairs-liver-insulin-signaling-and-causes-cholesterol-and-triglyceride-loading-without-changing-calorie-intake-and-body-weight
#7
Miguel Baena, Gemma Sangüesa, Natalia Hutter, José María Beltrán, Rosa María Sánchez, Núria Roglans, Marta Alegret, Juan Carlos Laguna
BACKGROUND/OBJECTIVES: Liquid fructose associates with prevalence of type 2 diabetes mellitus and obesity. Intervention studies suggest that metabolically unfit individuals are more responsive than healthy individuals to liquid fructose. We determined whether mice consuming an obesogenic Western diet were more responsive than chow-fed mice to the alterations induced by liquid fructose supplementation (LFS). METHODS: C57BL/6N mice were fed chow or Western diet±ad libitum 15% fructose solution for 12 weeks...
November 2, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27882143/expression-of-connexin-43-ion-channels-and-ca-2-handling-proteins-in-rat-pulmonary-vein-cardiomyocytes
#8
Yaqiong Xiao, Xue Cai, Andrew Atkinson, Sunil Jit Logantha, Mark Boyett, Halina Dobrzynski
Atrial fibrillation (AF) is the most common cardiac arrhythmia. AF is thought to be triggered by ectopic beats, originating primarily in the myocardial sleeves surrounding the pulmonary veins (PVs). The mechanisms underlying these cardiac arrhythmias remain unclear. To investigate this, frozen sections of heart and lung tissue from adult rats without arrhythmia were obtained in different planes, stained with Masson's trichrome, and immunolabeled for connexin 43 (Cx43), caveolin-3 (Cav3), hyperpolarization-activated cyclic nucleotide-gated channel 4 (HCN4), Nav1...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27875619/automated-leukocyte-processing-by-microfluidic-deterministic-lateral-displacement
#9
Curt I Civin, Tony Ward, Alison M Skelley, Khushroo Gandhi, Zendra Peilun Lee, Christopher R Dosier, Joseph L D'Silva, Yu Chen, MinJung Kim, James Moynihan, Xiaochun Chen, Lee Aurich, Sergei Gulnik, George C Brittain, Diether J Recktenwald, Robert H Austin, James C Sturm
We previously developed a Deterministic Lateral Displacement (DLD) microfluidic method in silicon to separate cells of various sizes from blood (Davis et al., Proc Natl Acad Sci 2006;103:14779-14784; Huang et al., Science 2004;304:987-990). Here, we present the reduction-to-practice of this technology with a commercially produced, high precision plastic microfluidic chip-based device designed for automated preparation of human leukocytes (white blood cells; WBCs) for flow cytometry, without centrifugation or manual handling of samples...
November 22, 2016: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/27873145/use-of-refrigerant-spray-of-a-propane-butane-isobutane-gas-mixture-in-the-management-of-keratocystic-odontogenic-tumors-a-preliminary-study
#10
Eduardo Luis de Souza Cruz, Ana Karla da Silva Tabosa, Aline Semblano Carreira Falcão, Talita Tartari, Lucas Machado de Menezes, Edmar Tavares da Costa, José Thiers Carneiro Júnior
PURPOSE: Keratocystic odontogenic tumor (KCOT) is an aggressive benign tumor and the management by complete enucleation followed by cryotherapy maintains the inorganic bone matrix, resulting in better repair and reduces the rates of recurrence. A refrigerant spray with a propane/butane/isobutane gas mixture has been pointed to as an alternative to liquid nitrogen, because the device is easy to handle and contain within the cavity, providing better control and lower risk of injury to the adjacent soft tissue...
November 21, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27872871/microscopic-medical-image-classification-framework-via-deep-learning-and-shearlet-transform
#11
Hadi Rezaeilouyeh, Ali Mollahosseini, Mohammad H Mahoor
Cancer is the second leading cause of death in US after cardiovascular disease. Image-based computer-aided diagnosis can assist physicians to efficiently diagnose cancers in early stages. Existing computer-aided algorithms use hand-crafted features such as wavelet coefficients, co-occurrence matrix features, and recently, histogram of shearlet coefficients for classification of cancerous tissues and cells in images. These hand-crafted features often lack generalizability since every cancerous tissue and cell has a specific texture, structure, and shape...
October 2016: Journal of Medical Imaging
https://www.readbyqxmd.com/read/27872626/antigen-presenting-cells-and-antigen-presentation-in-tertiary-lymphoid-organs
#12
REVIEW
Catherine E Hughes, Robert A Benson, Marija Bedaj, Pasquale Maffia
Tertiary lymphoid organs (TLOs) form in territorialized niches of peripheral tissues characterized by the presence of antigens; however, little is known about mechanism(s) of antigen handling by ectopic lymphoid structures. In this mini review, we will discuss the role of antigen-presenting cells and mechanisms of antigen presentation in TLOs, summarizing what is currently known about this facet of the formation and function of these tissues as well as identifying questions yet to be addressed.
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27869623/contamination-of-the-surgical-field-with-propionibacterium-acnes-in-primary-shoulder-arthroplasty
#13
Travis M Falconer, Mohammed Baba, Lisa M Kruse, Oscar Dorrestijn, Matthew J Donaldson, Margaret M Smith, Melanie C Figtree, Bernard J Hudson, Benjamin Cass, Allan A Young
BACKGROUND: Propionibacterium acnes is a common pathogen identified in postoperative shoulder infection. It has been shown to be present in culture specimens during primary shoulder arthroplasty; however, recent work has suggested that it is most likely to be a contaminant. Our aim was to identify the potential sources of contamination in shoulder arthroplasty. METHODS: Tissue swabs were obtained for microbiological analysis from consecutive patients undergoing primary shoulder arthroplasty...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27866344/development-of-a-fast-curing-tissue-adhesive-for-meniscus-tear-repair
#14
Agnieszka Izabela Bochyńska, Gerjon Hannink, Dennis Janssen, Pieter Buma, Dirk W Grijpma
Isocyanate-terminated adhesive amphiphilic block copolymers are attractive materials to treat meniscus tears due to their tuneable mechanical properties and good adhesive characteristics. However, a drawback of this class of materials is their relatively long curing time. In this study, we evaluate the use of an amine cross-linker and addition of catalysts as two strategies to accelerate the curing rates of a recently developed biodegradable reactive isocyanate-terminated hyper-branched adhesive block copolymer prepared from polyethylene glycol (PEG), trimethylene carbonate, citric acid and hexamethylene diisocyanate...
January 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/27858140/adipocyte-stat5-deficiency-promotes-adiposity-and-impairs-lipid-mobilisation-in-mice
#15
Doris Kaltenecker, Kristina M Mueller, Pia Benedikt, Ursula Feiler, Madeleine Themanns, Michaela Schlederer, Lukas Kenner, Martina Schweiger, Guenter Haemmerle, Richard Moriggl
AIMS/HYPOTHESIS: Dysfunction of lipid metabolism in white adipose tissue can substantially interfere with health and quality of life, for example in obesity and associated metabolic diseases. Therefore, it is important to characterise pathways that regulate lipid handling in adipocytes and determine how they affect metabolic homeostasis. Components of the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway are involved in adipocyte physiology and pathophysiology...
November 17, 2016: Diabetologia
https://www.readbyqxmd.com/read/27857872/the-lamb-s-head-as-a-model-for-surgical-skills-development-in-endonasal-surgery
#16
Luíza Baptista Mallmann, Otávio Bejzman Piltcher, Gustavo Rassier Isolan
Objectives To test the viability of a lamb's head model for sinonasal surgery training in Brazil by comparing performance of endoscopic procedures in the septum and inferior turbinates. Design Prospective study. Settings Universidade Federal do Rio Grande do Sul (2015). Participants Ten physicians performed septoplasty, inferior turbinoplasty, and middle turbinectomy on 30 lamb's heads. Main Outcome Measures Degree of difficulty and similarity, opinion of tissue color and texture, and degree of satisfaction...
December 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/27856389/mini-laparoscopy-of-removal-partial-adnexae-at-the-time-of-hysterectomy
#17
António Gutierrez Setúbal, João Sequeira Alves, Olga Lavado, Joana Faria
STUDY OBJECTIVE: To describe our technique of mini laparoscopic adnexectomy or salpingectomy at the time of total laparoscopic hysterectomy DESIGN: Step-by-step video explanation of our technique SETTING: The advantages of laparoscopic surgery have been widely recognised in the past two decades: improved vision, exposure, reduction in operative trauma because of smaller incisions and more gentle tissue´s handling, that result in a faster postoperative recovery. The technology development has allowed the use of smaller caliber instruments while maintaining the high standard surgical performance...
November 14, 2016: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/27851958/alternative-splicing-of-four-trafficking-genes-regulates-myofiber-structure-and-skeletal-muscle-physiology
#18
Jimena Giudice, James A Loehr, George G Rodney, Thomas A Cooper
During development, transcriptional and post-transcriptional networks are coordinately regulated to drive organ maturation. Alternative splicing contributes by producing temporal-specific protein isoforms. We previously found that genes undergoing splicing transitions during mouse postnatal heart development are enriched for vesicular trafficking and membrane dynamics functions. Here, we show that adult trafficking isoforms are also expressed in adult skeletal muscle and hypothesize that striated muscle utilizes alternative splicing to generate specific isoforms required for function of adult tissue...
November 15, 2016: Cell Reports
https://www.readbyqxmd.com/read/27851808/an-observation-driven-agent-based-modeling-and-analysis-framework-for-c-elegans-embryogenesis
#19
Zi Wang, Benjamin J Ramsey, Dali Wang, Kwai Wong, Husheng Li, Eric Wang, Zhirong Bao
With cutting-edge live microscopy and image analysis, biologists can now systematically track individual cells in complex tissues and quantify cellular behavior over extended time windows. Computational approaches that utilize the systematic and quantitative data are needed to understand how cells interact in vivo to give rise to the different cell types and 3D morphology of tissues. An agent-based, minimum descriptive modeling and analysis framework is presented in this paper to study C. elegans embryogenesis...
2016: PloS One
https://www.readbyqxmd.com/read/27844118/the-cost-of-infection-in-severe-open-tibial-fractures-treated-with-a-free-flap
#20
Ulrik Kähler Olesen, Nicolas Jones Pedersen, Henrik Eckardt, Line Lykke-Meyer, Christian Thorsten Bonde, Upender Martin Singh, Martin McNally
PURPOSE: Open tibial fractures needing soft tissue cover are challenging injuries. Infection risk is high, making treatment difficult and expensive. Delayed skin closure has been shown to increase the infection rate in several studies. We aimed at calculating the direct and indirect cost of treatment, and to determine the effect of delayed skin closure on this cost. METHODS: We reviewed all records of patients treated with a free flap in our institution for an open tibial fracture from 2002 to 2013...
November 14, 2016: International Orthopaedics
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