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https://www.readbyqxmd.com/read/29165981/layered-double-hydroxide-and-polypeptide-thermogel-nanocomposite-system-for-chondrogenic-differentiation-of-stem-cells
#1
Seon Sook Lee, Goeun Choi, Hyun Jung Lee, Yelin Kim, Jin-Ho Choy, Byeongmoon Jeong
Stem cell therapy for damaged cartilages suffers from the low rates of retention, survival, and differentiation into chondrocytes at the target site. To solve these problems, here we propose a two dimensional/three dimensional (2D/3D) nanocomposite system. As a new two dimensional (2D) material, hexagonal layered double hydroxides (LDHs) with a uniform lateral length of 2-3 μm were prepared by a hydrothermal process. And then, tonsil-derived mesenchymal stem cells (TMSCs), RGD-coated LDHs, and kartogenin (KGN) were incorporated into the gel through the thermal energy-driven gelation of the system...
November 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29164662/laboratory-tests-for-identification-or-exclusion-of-heparin-induced-thrombocytopenia-hit-or-miss
#2
Emmanuel J Favaloro
Heparin induced thrombocytopenia (HIT) is a potentially fatal condition that arises subsequent to formation of antibodies against complexes containing heparin, usually platelet-factor 4-heparin ('anti-PF4-heparin'). Assessment for HIT involves both clinical evaluation and, if indicated, laboratory testing for confirmation or exclusion, typically using an initial immunological assay ('screening'), and only if positive, a secondary functional assay for confirmation. Many different immunological and functional assays have been developed...
November 22, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29164128/peptides-released-from-foremilk-and-hindmilk-proteins-by-breast-milk-proteases-are-highly-similar
#3
Søren D Nielsen, Robert L Beverly, David C Dallas
Human milk contains active proteases that initiate hydrolysis of milk proteins within the mammary gland. Milk expressed at the beginning of feeding is known as foremilk and that at the end of feeding is known as hindmilk. As hindmilk contains higher fat, vitamins A and E, and higher calories than foremilk, feeding only hindmilk initially and reserving foremilk for later are practiced in some neonatal intensive care units. This study investigated the difference in peptide profiles, predicted milk protease activities, and bioactive peptides between foremilk and hindmilk...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29163085/involvement-of-the-avian-dorsal-thalamic-nuclei-in-homing-pigeon-navigation
#4
Paulo E Jorge, Belmiro V Pinto, Verner P Bingman, John B Phillips
The navigational ability of birds has been a focus of popular and scientific interest for centuries, but relatively little is known about the neuronal networks that support avian navigation. In the brain, regions like the piriform cortex, olfactory bulbs, hippocampal formation, vestibular nuclei, and the wulst, are among the brain regions often discussed as involved in avian navigation. However, despite large literature showing a prominent role of some anterior and dorsal thalamic nuclei in mammalian spatial navigation, little is known about the role of the thalamus in avian navigation...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29160384/current-use-and-acceptability-of-novel-diagnostic-tests-for-active-tuberculosis-a-worldwide-survey
#5
Massimo Amicosante, Lia D'Ambrosio, Marcela Munoz, Fernanda Carvalho de Queiroz Mello, Marc Tebruegge, Novel Njweipi Chegou, Fouad Seghrouchni, Rosella Centis, Delia Goletti, Graham Bothamley, Giovanni Battista Migliori
OBJECTIVE: To determine the current use and potential acceptance (by tuberculosis experts worldwide) of novel rapid tests for the diagnosis of tuberculosis that are in line with World Health Organization target product profiles. METHODS: A multilingual survey was disseminated online between July and November of 2016. RESULTS: A total of 723 individuals from 114 countries responded to the survey. Smear microscopy was the most commonly used rapid tuberculosis test (available to 90...
September 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29158921/a-nearly-lethal-screw-an-unusual-cause-of-recurrent-bradycardia-and-asystole-episodes-after-fixation-of-the-cervical-spine
#6
Amit Frenkel, Yair Binyamin, Evgeni Brotfain, Leonid Koyfman, Aviel Roy-Shapira, Ilan Shelef, Moti Klein
We present a case of a 51-year-old man who was injured in a bicycle accident. His main injury was an unstable fracture of the cervical and thoracic vertebral column. Several hours after his arrival to the hospital the patient underwent open reduction and internal fixation (ORIF) of the cervical and thoracic spine. The patient was hospitalized in our critical care unit for 99 days. During this time patient had several episodes of severe bradycardia and asystole; some were short with spontaneous return to sinus and some required pharmacological treatment and even Cardiopulmonary Resuscitation (CPR)...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/29157955/development-of-a-goat-model-for-evaluation-of-withaferin-a-cervical-implants-for-the-treatment-of-cervical-intraepithelial-neoplasia
#7
Leslie C Sherwood, Farrukh Aqil, Manicka V Vadhanam, Jeyaprakash Jeyabalan, Radha Munagala, David Hoetker, Sanjay Srivastava, Inder P Singh, Scott Cambron, Martin O'Toole, Wendy Spencer, Lynn P Parker, Ramesh C Gupta
Cervical cancer is caused by human papillomavirus (HPV). The disease develops over many years through a series of precancerous lesions. Cervical cancer can be prevented by HPV-vaccination, screening and treatment of precancer before development of cervical cancer. The treatment of high-grade cervical dysplasia (CIN(2+)) has traditionally been by cervical conization. Surgical procedures are associated with increased risk of undesirable side effects including bleeding, infection, scarring (stenosis), infertility and complications in later pregnancies...
November 17, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29156107/hemodynamic-force-triggers-rapid-netosis-within-sterile-thrombotic-occlusions
#8
X Yu, J Tan, S L Diamond
BACKGROUND: Neutrophil extracellular traps (NETs) are released when neutrophils encounter infectious pathogens, especially during sepsis. Additionally, NETosis occurs during venous and arterial thrombosis, disseminated intravascular coagulation, and trauma. OBJECTIVE: We tested if hemodynamic forces trigger NETosis during sterile thrombosis. METHODS: NETs were imaged with Sytox-green during microfluidic perfusion of Factor XIIa-inhibited or thrombin-inhibited human whole blood over fibrillar collagen (± tissue factor)...
November 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29153707/the-influence-of-muscle-activation-on-impact-dynamics-during-lateral-falls-on-the-hip
#9
Daniel R Martel, Iris C Levine, Steven P Pretty, Andrew C Laing
Muscle activation has been demonstrated to influence impact dynamics during scenarios including running, automotive impacts, and head impacts. This study investigated the effects of targeted muscle activation magnitude on impact dynamics during low energy falls on the hip with human volunteers. Fifteen university-aged participants (eight females, seven males) underwent 12 lateral pelvis release trials. Half of the trials were muscle-'relaxed'; in the remaining 'contracted' trials participants isometrically contracted their gluteus medius to 20-30% of maximal voluntary contraction before the drop was initiated onto a force plate...
November 10, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29153601/neurodegenerative-diseases-the-immunological-perspective
#10
REVIEW
Monica Molteni, Carlo Rossetti
Increasing evidence supports the notion that the neurodegenerative process occurring in Alzheimer's disease (AD), Parkinson's disease (PD) and Amyotrophic Lateral Sclerosis (ALS) does not only imply the neuronal compartment but also involves a strong interaction with the immunological cells of the Central Nervous System (CNS), primarily microglia. Starting from the observation that the neurodegenerative disorders are frequent in elderly individuals, who have an immunological background that possibly favors this process, it is evident that a dysregulation of innate immune response triggered by misfolded and aggregated proteins, or by endogenous molecules released by injured neurons, directly contributes to disease pathogenesis and progression...
December 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29149404/the-translational-controlled-tumour-protein-tctp-biological-functions-and-regulation
#11
Ulrich-Axel Bommer
The Translational Controlled Tumour Protein TCTP (gene symbol TPT1, also called P21, P23, Q23, fortilin or histamine-releasing factor, HRF) is a highly conserved protein present in essentially all eukaryotic organisms and involved in many fundamental cell biological and disease processes. It was first discovered about 35 years ago, and it took an extended period of time for its multiple functions to be revealed, and even today we do not yet fully understand all the details. Having witnessed most of this history, in this chapter, I give a brief overview and review the current knowledge on the structure, biological functions, disease involvements and cellular regulation of this protein...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29146410/cart-neurons-in-the-arcuate-nucleus-and-lateral-hypothalamic-area-exert-differential-controls-on-energy-homeostasis
#12
Jackie Lau, Aitak Farzi, Yue Qi, Regine Heilbronn, Mario Mietzsch, Yan-Chuan Shi, Herbert Herzog
OBJECTIVE: The cocaine- and amphetamine-regulated transcript (CART) codes for a pivotal neuropeptide important in the control of appetite and energy homeostasis. However, limited understanding exists for the defined effector sites underlying CART function, as discrepant effects of central CART administration have been reported. METHODS: By combining Cart-cre knock-in mice with a Cart adeno-associated viral vector designed using the flip-excision switch (AAV-FLEX) technology, specific reintroduction or overexpression of CART selectively in CART neurons in the arcuate nucleus (Arc) and lateral hypothalamic area (LHA), respectively, was achieved...
November 8, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29145317/complete-remission-and-long-term-survival-of-a-patient-with-melanoma-metastases-treated-with-high-dose-fever-inducing-viscum-album-extract-a-case-report
#13
Paul G Werthmann, Alexander Hintze, Gunver S Kienle
INTRODUCTION: Metastatic malignant cutaneous melanoma (MCM)-a highly immunogenic cancer-typically has a poor prognosis. Viscum album extracts (VAEs) have strong immune-stimulating, apoptogenic, and cytotoxic effects. CASE PRESENTATION: A 66-year-old MCM patient with newly diagnosed lymph node metastases opted for sole VAE treatment. VAEs were initially applied subcutaneously, and then later in exceptionally high, fever-inducing doses, both intravenously and intralesionally...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143634/efficacy-of-oral-moxidectin-against-susceptible-and-resistant-isolates-of-dirofilaria-immitis-in-dogs
#14
Tom L McTier, Robert H Six, Aleah Pullins, Sara Chapin, John W McCall, Douglas Rugg, Steven J Maeder, Debra J Woods
BACKGROUND: Monthly topical and sustained-release injectable formulations of moxidectin are currently marketed; however, an oral formulation, while approved at a dose of 3 μg/kg, is not currently marketed in the United States. Although resistance of heartworms to all macrocyclic lactone (ML) heartworm preventives (ivermectin, milbemycin, selamectin and moxidectin) has been demonstrated, to date no data have been reported on the effectiveness of oral moxidectin against recent isolates of Dirofilaria immitis...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29138916/lateral-retinaculum-plasty-instead-of-lateral-retinacular-release-with-concomitant-medial-patellofemoral-ligament-reconstruction-can-achieve-better-results-for-patellar-dislocation
#15
Chang Liu, Guman Duan, Yingzhen Niu, Pengkai Cao, Kunpeng Fu, Jinghui Niu, Fei Wang
PURPOSE: To elucidate the outcomes of lateral retinaculum plasty versus lateral retinacular release with concomitant medial patellofemoral ligament (MPFL) reconstruction. METHODS: In a prospective study, 59 patients treated at our institution from 2012 to 2014 were included. The 59 patients were randomly divided into two groups. Group I included 27 patients who underwent lateral retinacular release and MPFL reconstruction. Group II included 32 patients who underwent lateral retinaculum plasty and MPFL reconstruction...
November 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29138790/high-efficiency-single-cell-encapsulation-and-size-selective-capture-of-cells-in-picoliter-droplets-based-on-hydrodynamic-micro-vortices
#16
Gopakumar Kamalakshakurup, Abraham P Lee
Single cell analysis has emerged as a paradigm shift in cell biology to understand the heterogeneity of individual cells in a clone for pathological interrogation. Microfluidic droplet technology is a compelling platform to perform single cell analysis by encapsulating single cells inside picoliter-nanoliter (pL-nL) volume droplets. However, one of the primary challenges for droplet based single cell assays is single cell encapsulation in droplets, currently achieved either randomly, dictated by Poisson statistics, or by hydrodynamic techniques...
November 15, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/29137922/extracellular-vesicles-in-neurodegenerative-diseases
#17
REVIEW
Tommaso Croese, Roberto Furlan
Extracellular vesicles (EVs) are released by all neural cells, including neurons, oligodendrocytes, astrocytes, and microglia. The lack of adequate technology has not halted neuroscientists from investigating EVs as a mean to decipher neurodegenerative disorders, still in search of comprehensible pathogenic mechanisms and efficient treatment. EVs are thought to be one of ways neurodegenerative pathologies spread in the brain, but also one of the ways the brain tries to displace toxic proteins, making their meaning in pathogenesis uncertain...
November 11, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29137494/trh-receptor-mobility-in-the-plasma-membrane-is-strongly-affected-by-agonist-binding-and-by-interaction-with-some-cognate-signaling-proteins
#18
Radka Moravcova, Barbora Melkes, Jiri Novotny
OBJECTIVES: Extensive research has been dedicated to elucidating the mechanisms of signal transduction through different G protein-coupled receptors (GPCRs). However, relatively little is known about the regulation of receptor movement within the cell membrane upon ligand binding. In this study we focused our attention on the thyrotropin-releasing hormone (TRH) receptor that typically couples to Gq/11 proteins. METHODS: We monitored receptor diffusion in the plasma membrane of HEK293 cells stably expressing yellow fluorescent protein (YFP)-tagged TRH receptor (TRHR-YFP) by fluorescence recovery after photobleaching (FRAP)...
November 14, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/29133203/expression-and-functional-characterization-of-tachykinin-related-peptides-in-the-blood-feeding-bug-rhodnius-prolixus
#19
A N S Haddad, M S Defferrari, S Hana, S G Szeto, A B Lange
Tachykinins (tachykinin-related peptides, TRPs) are multifunctional neuropeptides that have widespread distribution in the central nervous system (CNS) and in the gastrointestinal tract of many insects, and most have been shown to stimulate contractions of visceral muscles. Invertebrate TRPs carry a characteristic conserved C-terminal pentapeptide (FXGXR-amide) and most of them share some amino acid sequence similarities (approx. 45%) with the vertebrate and mammalian tachykinin family. We have functionally characterized the tachykinins in R...
November 10, 2017: Peptides
https://www.readbyqxmd.com/read/29132037/flunixin-meglumine-improves-pregnancy-rate-in-embryo-recipient-beef-cows-with-an-excitable-temperament
#20
R K Kasimanickam, J B Hall, C T Estill, J P Kastelic, C Joseph, R L Abdel Aziz, D Nak
Objectives were to determine effects of: 1) handling temperament and administration of flunixin meglumine, an inhibitor of prostaglandin F2a (PGF2a) synthesis, given at the time of embryo transfer, on pregnancy rates in beef cattle embryo transfer recipients; 2) handling temperament and flunixin meglumine on peripheral concentrations of progesterone, cortisol, substance-P, prostaglandin F metabolites (PGFM, (13,14-dihydro-15-keto-PGF2a) and isoprostane 8-epi PGF2a; and 3) flunixin meglumine treatment on proportion of non-pregnant recipient cows returning to estrus within an expected interval...
November 10, 2017: Theriogenology
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