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https://www.readbyqxmd.com/read/29684787/the-body-electric-2-0-recent-advances-in-developmental-bioelectricity-for-regenerative-and-synthetic-bioengineering
#1
REVIEW
Juanita Mathews, Michael Levin
Breakthroughs in biomedicine and synthetic bioengineering require predictive, rational control over anatomical structure and function. Recent successes in manipulating cellular and molecular hardware have not been matched by progress in understanding the patterning software implemented during embryogenesis and regeneration. A fundamental capability gap is driving desired changes in growth and form to address birth defects and traumatic injury. Here we review new tools, results, and conceptual advances in an exciting emerging field: endogenous non-neural bioelectric signaling, which enables cellular collectives to make global decisions and implement large-scale pattern homeostasis...
April 20, 2018: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/29676562/bacterial-cellulose-promotes-long-term-stemness-of-mesc
#2
Tina Tronser, Anna Laromaine, Anna Roig, Pavel A Levkin
Stem cells possess unique properties, such as the ability to self-renew and the potential to differentiate into an organism's various cell types. These make them highly valuable in regenerative medicine and tissue engineering. Their properties are precisely regulated in vivo through complex mechanisms that include multiple cues arising from the cell interaction with the surrounding extracellular matrix, neighboring cells, and soluble factors. Although many research efforts have focused on developing systems and materials that mimic this complex microenvironment, the controlled regulation of differentiation and maintenance of stemness in vitro remains elusive...
April 20, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29675551/magnetic-nanoparticles-based-cancer-therapy-current-status-and-applications
#3
REVIEW
Huan Zhang, Xiao Li Liu, Yi Fan Zhang, Fei Gao, Ga Long Li, Yuan He, Ming Li Peng, Hai Ming Fan
Nanotechnology holds a promising potential for developing biomedical nanoplatforms in cancer therapy. The magnetic nanoparticles, which integrate uniquely appealing features of magnetic manipulation, nanoscale heat generator, localized magnetic field and enzyme-mimics, prompt the development and application of magnetic nanoparticles-based cancer medicine. Considerable success has been achieved in improving the magnetic resonance imaging (MRI) sensitivity, and the therapeutic function of the magnetic nanoparticles should be given adequate attention...
April 3, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29673841/electrospun-silk-fibroin-fibers-for-storage-and-controlled-release-of-human-platelet-lysate
#4
Cataldo Pignatelli, Giovanni Perotto, Marta Nardini, Ranieri Cancedda, Maddalena Mastrogiacomo, Athanassia Athanassiou
Human platelet lysate (hPL) is a pool of growth factors and cytokines able to induce regeneration of different tissues. Despite its good potentiality as therapeutic tool for regenerative medicine applications, hPL has been only moderately exploited in this field. A more widespread adoption has been limited because of its rapid degradation at room temperature that decreases its functionality. Another limiting factor for its extensive use is the difficulty of handling the hPL gels. In this work, silk fibroin-based patches were developed to address several points: improving the handling of hPL, enabling their delivery in a controlled manner and facilitating their storage by creating a device ready to use with expanded shelf life...
April 16, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29672782/-comparison-of-the-regenerative-cytokine-profile-of-adipose-derived-stromal-cells-ascs-harvested-via-abdominoplasty-suction-assisted-liposuction-sal-and-ultrasound-assisted-liposuction-ual
#5
Matthias Michael Aitzetmüller, Hans-Günther Machens, Arndt F Schilling, Dominik Duscher
INTRODUCTION: Mesenchymal stem cells are already used in numerous areas of medicine. In the field of plastic surgery, the main focus of recent research has been to utilise adipose-derived stromal cells (ASCs), mainly harvested via liposuction. The ability to release regenerative cytokines is supposed to be the key mechanism for the therapeutic efficacy of ASCs. There are currently a variety of methods and devices in clinical use for harvesting lipoaspirate and consequently ASCs. For most of these devices, the effect on the regenerative cytokine profile of ASCs is unknown...
April 2018: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/29664602/engineering-persistent-luminescence-nanoparticles-for-biological-applications-from-biosensing-bioimaging-to-theranostics
#6
Shao-Kai Sun, He-Fang Wang, Xiu-Ping Yan
Persistent luminescence nanoparticles (PLNPs) are unique optical materials emitting long-lasting luminescence after ceasing excitation. Such a unique optical feature allows luminescence detection without constant external illumination to avoid the interferences of autofluorescence and scattering light from biological fluids and tissues. Besides, near-infrared (NIR) PLNPs have advantages of deep penetration and the reactivation of the persistent luminescence (PL) by red or NIR light. These features make the application of NIR-emitting PLNPs in long-term bioimaging no longer limited by the lifetime of PL...
April 17, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29663673/developing-the-digital-kyoto-collection-in-education-and-research
#7
Mark Anthony Hill
The Kyoto embryo collection was begun in 1961 by Dr. Hideo Nishimura. The collection has been continuously developed and currently contains over 44,000 human normal and abnormal specimens. Beginning online in 1997, the internet provided an opportunity to make embryos from the collection widely available for research and educational purposes (http://tiny.cc/Embryo). These embryonic development resources have been continuously published and available from that time until today. Published in Japanese as an Atlas of Embryonic Development...
April 16, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29661055/messenger-rna-delivery-for-tissue-engineering-and-regenerative-medicine-applications
#8
Siddharth Patel, Avathamsa Athirasala, Paula Dos Passos Menezes, Narayanan Ashwanikumar, Ting Zou, Gaurav Sahay, Luiz Bertassoni
The ability to control cellular processes and precisely direct cellular reprogramming has revolutionized regenerative medicine. Recent advances in in vitro transcribed (IVT) mRNA technology with chemical modifications have led to development of methods that control spatio-temporal gene expression. Additionally, there is a current thrust towards the development of safe, integration-free approaches to gene therapy for translational purposes. In this review, we describe strategies of synthetic IVT mRNA modifications and non-viral technologies for intracellular delivery...
April 17, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29656795/single-cell-microgels-technology-challenges-and-applications
#9
REVIEW
Tom Kamperman, Marcel Karperien, Séverine Le Gac, Jeroen Leijten
Single-cell-laden microgels effectively act as the engineered counterpart of the smallest living building block of life: a cell within its pericellular matrix. Recent breakthroughs have enabled the encapsulation of single cells in sub-100-μm microgels to provide physiologically relevant microniches with minimal mass transport limitations and favorable pharmacokinetic properties. Single-cell-laden microgels offer additional unprecedented advantages, including facile manipulation, culture, and analysis of individual cell within 3D microenvironments...
April 12, 2018: Trends in Biotechnology
https://www.readbyqxmd.com/read/29652725/therapeutic-strategies-involving-uterine-stem-cells-in-reproductive-medicine
#10
Michael Simoni, Hugh S Taylor
PURPOSE OF REVIEW: The current review provides an update on recent advances in stem cell biology relevant to female reproduction. RECENT FINDINGS: Stem cells are undifferentiated cells that often serve as a reservoir of cells to regenerate tissue in settings or injury or cell loss. The endometrium has progenitor stem cells that can replace all of the endometrium during each menstrual cycle. In addition, multipotent endometrial cells replace these progenitor cells when depleted...
April 12, 2018: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29643122/guidelines-for-using-animal-models-in-blast-injury-research
#11
Sarah Watts, E Kirkman, D Bieler, S Bjarnason, A Franke, R Gupta, M J Leggieri, H Orru, S Ouellet, M Philippens, J-C Sarron, S Skriudalen, J A Teland, M Risling, I Cernak
Blast injury is a very complex phenomenon and frequently results in multiple injuries. One method to investigate the consequences of blast injuries is with the use of living systems (animal models). The use of animals allows the examination and evaluation of injury mechanisms in a more controlled manner, allowing variables such as primary or secondary blast injury for example, to be isolated and manipulated as required. To ensure a degree of standardisation across the blast research community a set of guidelines which helps researchers navigate challenges of modelling blast injuries in animals is required...
April 10, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29629415/toward-personalized-control-of-human-gut-bacterial-communities
#12
Lawrence A David
A key challenge in microbiology will be developing tools for manipulating human gut bacterial communities. Our ability to predict and control the dynamics of these communities is now in its infancy. To manage human gut microbiota, I am developing methods in three research domains. First, I am refining in vitro tools to experimentally study gut microbes at high throughput and in controlled settings. Second, I am adapting "big data" techniques to overcome statistical challenges confronting microbiota modeling...
March 2018: MSystems
https://www.readbyqxmd.com/read/29625363/off-label-use-and-manipulations-of-antiepileptic-drugs-in-children-analysis-of-the-outpatient-prescriptions-in-a-tertiary-center
#13
Mathieu Kuchenbuch, Nicole Chemaly, Kassem Mb Henniene, Anna Kaminska, Catherine Chiron, Rima Nabbout
OBJECTIVES: Little is known about off-label use and manipulations to achieve the prescribed dose of antiepileptic drugs (AEDs) in outpatient prescriptions. This study aimed to evaluate this practice in a tertiary center for child epilepsy. METHODS: We reviewed off-label use and manipulations of AEDs delivered to the outpatient's epilepsy clinic. Multivariate logistic regressions were used to determine the factors associated with off-label and manipulated uses. RESULTS: Five hundred eleven consultations generated 897 AED deliveries (1...
April 3, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29620051/manipulation-free-cultures-of-human-ipsc-derived-cardiomyocytes-offer-a-novel-screening-method-for-cardiotoxicity
#14
Sheeja Rajasingh, Dona Greta Isai, Saheli Samanta, Zhi-Gang Zhou, Buddhadeb Dawn, William H Kinsey, Andras Czirok, Johnson Rajasingh
Induced pluripotent stem cell (iPSC)-based cardiac regenerative medicine requires the efficient generation, structural soundness and proper functioning of mature cardiomyocytes, derived from the patient's somatic cells. The most important functional property of cardiomyocytes is the ability to contract. Currently available methods routinely used to test and quantify cardiomyocyte function involve techniques that are labor-intensive, invasive, require sophisticated instruments or can adversely affect cell vitality...
April 5, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29611428/engineering-a-yeast-double-molecule-carrier-for-drug-screening
#15
Qiyun Zhang, Sheng Hu, Ke Wang, Min Cui, Xiaohua Li, Mo Wang, Xuebo Hu
With the advantages of unicellular eukaryotic structure and easy manipulation, yeast becomes a popular tool for biochemical, genetic and medicinal studies. In order to construct an efficient anti-inflammatory drug screening platform, we engineered yeast as a double-molecule carrier, of which an inserted domain (I domain) of lymphocyte function-associated antigen 1 was displayed on yeast surface and a green fluorescent protein (GFP) was expressed inside cytosol. The I domain specifically targeted a surface marker of mammalian cells, intercellular adhesion molecule 1, whose number is correlated with the level of cellular inflammation...
April 3, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29610729/valence-state-manipulation-of-cerium-oxide-nanoparticles-on-a-titanium-surface-for-modulating-cell-fate-and-bone-formation
#16
Jinhua Li, Jin Wen, Bin Li, Wan Li, Wei Qiao, Jie Shen, Weihong Jin, Xinquan Jiang, Kelvin W K Yeung, Paul K Chu
Understanding cell-biomaterial interactions is critical for the control of cell fate for tissue engineering and regenerative medicine. Here, cerium oxide nanoparticles (CeONPs) are applied at different Ce4+ /Ce3+ ratios (i.e., 0.46, 1.23, and 3.23) to titanium substrate surfaces by magnetron sputtering and vacuum annealing. Evaluation of the cytotoxicity of the modified surface to cultured rat bone marrow mesenchymal stem cells (BMSCs) reveals that the cytocompatibility and cell proliferation are proportional to the increases in Ce4+ /Ce3+ ratio on titanium surface...
February 2018: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29609928/complementary-and-alternative-medicine-utilisation-for-the-management-of-acute-respiratory-tract-infection-in-children-a-systematic-review
#17
REVIEW
S Lucas, M Leach, S Kumar
INTRODUCTION: As many as one in two children across the globe use complementary and alternative medicine (CAM) to manage a health condition. Despite the high prevalence of use, there is still limited information on the types of CAM used in children, particularly for the management of one of the most common childhood health complaints - acute respiratory tract infection (ARTI). This systematic review was undertaken to address this knowledge gap. METHODS: Eligible studies reporting the use of CAM in children with ARTI were identified using a targeted search of seven electronic databases and the grey literature...
April 2018: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29609927/complementary-and-alternative-medicine-for-rheumatic-diseases-a-systematic-review-of-randomized-controlled-trials
#18
REVIEW
Jie Kie Phang, Yu Heng Kwan, Hendra Goh, Victoria Ie Ching Tan, Julian Thumboo, Truls Østbye, Warren Fong
OBJECTIVES: To summarize all good quality randomized controlled trials (RCTs) using complementary and alternative medicine (CAM) interventions in patients with rheumatic diseases. METHODS: A systematic literature review guided by the Preferred Reporting Items for Systematic review and Meta-Analysis (PRISMA) was performed. We excluded non-English language articles and abstract-only publications. Due to the large number of RCTs identified, we only include "good quality" RCTs with Jadad score of five...
April 2018: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29602957/nanotechnology-the-scope-and-potential-applications-in-orthopedic-surgery
#19
EDITORIAL
Ashok Gavaskar, D Rojas, F Videla
Nanotechnology involves manipulation of matter measuring 1-100 nm in at least one of its dimensions at the molecular level. Engineering and manipulation of matter at the molecular level has several advantages in the field of medicine (nanomedicine) since most of the biological molecules exist and function at a nanoscale. Though promising, questions still remain on how much of this will ultimately translate into achieving better patient care. Concerns of cost-effectiveness and nanotechnology safety still remain unclear...
March 30, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29601901/3d-printing-porosity-a-new-approach-to-creating-elevated-porosity-materials-and-structures
#20
A E Jakus, N R Geisendorfer, P L Lewis, R N Shah
We introduce a new process that enables the ability to 3D-print high porosity materials and structures by combining the newly introduced 3D-Painting process with traditional salt-leaching. The synthesis and resulting properties of three 3D-printable inks comprised of varying volume ratios (25:75, 50:50, 70:30) of CuSO4 salt and polylactide-co-glycolide (PLGA), as well as their as-printed and salt-leached counterparts, are discussed. The resulting materials are comprised entirely of PLGA (F-PLGA), but exhibit porosities proportional to the original CuSO4 content...
March 27, 2018: Acta Biomaterialia
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