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https://www.readbyqxmd.com/read/29454274/a-multifaceted-coating-on-titanium-dictates-osteoimmunomodulation-and-osteo-angio-genesis-towards-ameliorative-osseointegration
#1
Long Bai, Zhibin Du, Jingjing Du, Wei Yao, Jiaming Zhang, Zeming Weng, Si Liu, Ya Zhao, Yanlian Liu, Xiangyu Zhang, Xiaobo Huang, Xiaohong Yao, Ross Crawford, Ruiqiang Hang, Di Huang, Bin Tang, Yin Xiao
A multifaceted coating for hard tissue implants, with favorable osteogenesis, angiogenesis, and osteoimmunomodulation abilities, would be of great value since it could improve osseointegration and alleviate prosthesis loosening. However, to date there are few coatings that fully satisfy these criteria. Herein we describe a microporous TiO 2 coating decorated with hydroxyapatite (HA) nanoparticles that is generated by micro-arc oxidation of pure titanium (Ti) and followed annealing. By altering the annealing temperature, it is possible to simultaneously tune the coating's physical (morphology and wettability) and chemical (composites and crystallinity) properties...
February 6, 2018: Biomaterials
https://www.readbyqxmd.com/read/29453877/significance-of-mitochondria-on-cardiometabolic-syndromes
#2
REVIEW
Nair Anupama, G Sindhu, K G Raghu
Metabolic syndromes (MS) are a cluster of disorders like obesity, hypertension, dyslipidemia, and diabetes. Cardiometabolic syndrome (CMS), a branch of MS, is a group of diseases affecting cardiovascular, renal, metabolic, prothrombotic and inflammatory abnormalities due to defects in energy metabolism. Since the emergence of molecular biology and the discovery of pathogenic mitochondrial DNA defect in the 1980s, research advances has revealed a number of common human disease involving mitochondrial dysfunction...
February 17, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29453871/examining-the-incidence-and-presentation-of-melanoma-in-the-cardiothoracic-transplant-population
#3
Charles J Puza, Adela R Cardones, Paul J Mosca
Importance: The immunosuppression vital to maintaining transplanted organs comes with an increased incidence of cutaneous neoplasms. Understanding the genesis of malignant melanoma (MM) in transplant subpopulations is necessary for adequate disease surveillance. Objective: To determine the incidence and timing of presentation of MM in the cardiothoracic (heart and/or lung) transplant (CTT) population. Design, Setting, and Participants: This was a retrospective cohort study of 1164 patients who underwent a CTT from 2001 through 2016 with a median follow-up time of 4...
February 16, 2018: JAMA Dermatology
https://www.readbyqxmd.com/read/29453834/demystifying-evidence-based-policy-analysis-by-revealing-hidden-value-laden-constraints
#4
Adam M Finkel
Consider any choice that affects some social policy. A decision that considers evidence will, at its heart, contain some kind of explicit or implicit "because" statement: "We are doing X because the evidence says Y." But can evidence ever truly speak for itself, in the sense of being reducible to objective utterances that are either correct or in need of correction? Before answering, consider what you'd prefer. Would you rather receive evidence that was free of any value judgments imposed by human actors, that was laden with value judgments that you agree with, or laden with value judgments that you disagree with? The central assertion of this essay is that, throughout policy analysis but especially in assessments of the costs and benefits of regulating versus encouraging new technologies (cost-benefit analysis, or CBA), the first possibility above is a mirage, and the second and third are self-contradictory...
January 2018: Hastings Center Report
https://www.readbyqxmd.com/read/29453220/identification-of-novel-fusion-transcripts-in-multiple-myeloma
#5
Mingxuan Lin, Peak Ling Lee, Lily Chiu, Constance Chua, Kenneth H K Ban, Adeline H F Lin, Zit Liang Chan, Tae-Hoon Chung, Benedict Yan, Wee-Joo Chng
AIMS: Multiple myeloma (MM) is a heterogeneous disease characterised by genetically complex abnormalities. The classical mutational spectrum includes recurrent chromosomal aberrations and gene-level mutations. Recurrent translocations involving the IGH gene such as t(11;14), t(4;14) and t(14;16) are well known. However, the presence of complex genetic abnormalities raises the possibility that fusions other than the recurrent IGH translocations exist. We therefore employed a targeted RNA-sequencing panel to identify novel putative fusions in a local cohort of MM...
February 16, 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29452171/evolution-of-model-specific-relative-growth-rate-its-genesis-and-performance-over-fisher-s-growth-rates
#6
Arijit Pal, Amiya Ranjan Bhowmick, Farhana Yeasmin, Sabyasachi Bhattacharya
Growth curve models play an instrumental role to quantify the growth of biological processes and have immense practical applications across disciplines. In the modelling approach, the absolute growth rate and relative growth rate (RGR) are two most commonly used measures of growth rates. RGR is empirically estimated by Fisher (1921) assuming exponential growth between two consecutive time points and remains invariant under any choice of the underlying growth model. In this article, we propose a new measure of RGR, called modified RGR, which is sensitive to the choice of underlying growth law...
February 13, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29452146/the-hippo-yap1-pathway-interacts-with-fgfr1-signaling-to-maintain-stemness-in-lung-cancer
#7
Tingting Lu, Ziming Li, Ying Yang, Wenxiang Ji, Yongfeng Yu, Xiaomin Niu, Qingyu Zeng, Weiliang Xia, Shun Lu
The Hippo pathway plays a critical role in organ size control, tissue homeostasis and tumor genesis through its key transcription regulator Yes-associated protein1 (YAP1), but the mechanism underlying its role in lung cancer is unclear. We hypothesized that YAP1 influences FGFR1 signaling to maintain cancer stem-like cell (CSC) properties in FGFR1-amplified lung cancer. In support of this, our data confirms that expression levels of YAP1 are positively associated with those of FGFR1 in clinical lung carcinoma samples as measured by real-time PCR, western blot, and immunohistochemistry (IHC) staining...
February 13, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29446201/transposable-elements-shape-the-human-proteome-landscape-via-formation-of-cis-acting-upstream-open-reading-frames
#8
Shohei Kitano, Hikaru Kurasawa, Yasunori Aizawa
Transposons are major drivers of mammalian genome evolution. To obtain new insights into the contribution of transposons to the regulation of protein translation, we here examined how transposons affected the genesis and function of upstream open reading frames (uORFs), which serve as cis-acting elements to regulate translation from annotated ORFs (anORFs) located downstream of the uORFs in eukaryotic mRNAs. Among 39,786 human uORFs, 3,992 had ATG trinucleotides of a transposon origin, termed "transposon-derived upstream ATGs" or TuATGs...
February 15, 2018: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/29445712/radioprotective-effects-of-sulfur-containing-mineral-water-of-ramsar-hot-spring-with-high-natural-background-radiation-on-mouse-bone-marrow-cells
#9
A H Heidari, A Shabestani Monfared, H Mozdarani, A Mahmoudzadeh, A Razzaghdoust
Background: We intend to study the inhibitory effect of sulfur compound in Ramsar hot spring mineral on tumor-genesis ability of high natural background radiation. Objective: The radioprotective effect of sulfur compounds was previously shown on radiation-induced chromosomal aberration, micronuclei in mouse bone marrow cells and human peripheral lymphocyte. Ramsar is known for having the highest level of natural background radiation on Earth. This study was performed to show the radioprotective effect of sulfur-containing Ramsar mineral water on mouse bone marrow cells...
December 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/29440180/resistance-promoting-effects-of-ependymoma-treatment-revealed-through-genomic-analysis-of-multiple-recurrences-in-a-single-patient
#10
Christopher A Miller, Sonika Dahiya, Tiandao Li, Robert Fulton, Matthew D Smyth, Gavin P Dunn, Joshua B Rubin, Elaine R Mardis
BACKGROUND: As in other brain tumors, multiple recurrences after complete resection and irradiation of supratentorial ependymoma are common and frequently result in patient death. This standard-of-care treatment was established in the pre-genomic era without the ability to evaluate the effect that mutagenic therapies may exert on tumor evolution and in promoting resistance, recurrence, and death. We seized a rare opportunity to characterize treatment effects and the evolution of a single patient's ependymoma across four recurrences after different therapies...
February 13, 2018: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/29440149/cancer-cachexia-rationale-for-the-menac-multimodal-exercise-nutrition-and-anti-inflammatory-medication-for-cachexia-trial
#11
REVIEW
Tora S Solheim, Barry J A Laird, Trude R Balstad, Asta Bye, Guro Stene, Vickie Baracos, Florian Strasser, Gareth Griffiths, Matthew Maddocks, Marie Fallon, Stein Kaasa, Kenneth Fearon
Cancer cachexia is a multifactorial syndrome characterised by an ongoing loss of skeletal muscle mass that cannot be fully reversed by conventional nutritional support alone. Cachexia has a high prevalence in cancer and a major impact on patient physical function, morbidity and mortality. Despite the consequences of cachexia, there is no licensed treatment for cachexia and no accepted standard of care. It has been argued that the multifactorial genesis of cachexia lends itself to therapeutic targeting through a multimodal treatment...
February 9, 2018: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/29437953/slc39a14-deficiency-alters-manganese-homeostasis-and-excretion-resulting-in-brain-manganese-accumulation-and-motor-deficits-in-mice
#12
Supak Jenkitkasemwong, Adenike Akinyode, Elizabeth Paulus, Ralf Weiskirchen, Shintaro Hojyo, Toshiyuki Fukada, Genesys Giraldo, Jessica Schrier, Armin Garcia, Christopher Janus, Benoit Giasson, Mitchell D Knutson
Solute carrier family 39, member 14 (SLC39A14) is a transmembrane transporter that can mediate the cellular uptake of zinc, iron, and manganese (Mn). Studies of Slc39a14 knockout ( Slc39a14 -/- ) mice have documented that SLC39A14 is required for systemic growth, hepatic zinc uptake during inflammation, and iron loading of the liver in iron overload. The normal physiological roles of SLC39A14, however, remain incompletely characterized. Here, we report that Slc39a14 -/- mice spontaneously display dramatic alterations in tissue Mn concentrations, suggesting that Mn is a main physiological substrate for SLC39A14...
February 7, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29437383/encoding-stem-cell-secreted-extracellular-matrix-protein-capture-in-two-and-three-dimensions-using-protein-binding-peptides
#13
Hadi Hezaveh, Steffen Cosson, Ellen A Otte, Guannan Su, Benjamin D Fairbanks, Justin J Cooper-White
Capturing cell-secreted extracellular matrix (ECM) proteins through cooperative binding with high specificity and affinity is an important function of native tissue matrices during both tissue homeostasis and repair. However, whilst synthetic hydrogels, such as those based on polyethylene glycol (PEG), are often proposed as ideal materials to deliver human mesenchymal stem cells (hMSCs) to sites of injury to enable tissue repair, they do not have this capability, a capability that would enable cells to actively remodel their local extracellular microenvironment and potentially provide the required feedback control for more effective tissue genesis...
February 13, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29435436/osteosarcoma-accelerating-progress-makes-for-a-hopeful-future
#14
REVIEW
Amanda J Saraf, Joelle M Fenger, Ryan D Roberts
Patients who develop osteosarcoma in 2017 receive treatment that remains essentially unchanged since the 1970s. Outcomes likewise remain largely unimproved. Large, collaborative, multinational efforts to improve therapy have evaluated strategies leveraging both cytotoxic intensification and immunomodulatory agents. While these have confirmed our capacity to conduct such trials, results have proved largely disappointing. This has motivated efforts to focus on the basic biology of osteosarcoma, where understanding remains poor but has improved significantly...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29433054/hallmarks-of-cancer-the-crispr-generation
#15
REVIEW
Colette Moses, Benjamin Garcia-Bloj, Alan R Harvey, Pilar Blancafort
The hallmarks of cancer were proposed as a logical framework to guide research efforts that aim to understand the molecular mechanisms and derive treatments for this highly complex disease. Recent technological advances, including comprehensive sequencing of different cancer subtypes, have illuminated how genetic and epigenetic alterations are associated with specific hallmarks of cancer. However, as these associations are purely descriptive, one particularly exciting development is the emergence of genome editing technologies, which enable rapid generation of precise genetic and epigenetic modifications to assess the consequences of these perturbations on the cancer phenotype...
February 9, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29432490/differential-microstructural-alterations-in-rat-cerebral-cortex-in-a-model-of-chronic-mild-stress-depression
#16
Ahmad Raza Khan, Christopher D Kroenke, Ove Wiborg, Andrey Chuhutin, Jens R Nyengaard, Brian Hansen, Sune Nørhøj Jespersen
Chronic mild stress leads to depression in many cases and is linked to several debilitating diseases including mental disorders. Recently, neuronal tracing techniques, stereology, and immunohistochemistry have revealed persistent and significant microstructural alterations in the hippocampus, hypothalamus, prefrontal cortex, and amygdala, which form an interconnected system known as the stress circuit. Most studies have focused only on this circuit, however, some studies indicate that manipulation of sensory and motor systems may impact genesis and therapy of mood disorders and therefore these areas should not be neglected in the study of brain microstructure alterations in response to stress and depression...
2018: PloS One
https://www.readbyqxmd.com/read/29419698/next-generation-sequencing-diagnostics-of-bacteremia-in-sepsis-next-genesis-trial-study-protocol-of-a-prospective-observational-noninterventional-multicenter-clinical-trial
#17
MULTICENTER STUDY
Thorsten Brenner, Sebastian O Decker, Silke Grumaz, Philip Stevens, Thomas Bruckner, Thomas Schmoch, Mathias W Pletz, Hendrik Bracht, Stefan Hofer, Gernot Marx, Markus A Weigand, Kai Sohn
BACKGROUND: Sepsis remains a major challenge, even in modern intensive care medicine. The identification of the causative pathogen is crucial for an early optimization of the antimicrobial treatment regime. In this context, culture-based diagnostic procedures (e.g., blood cultures) represent the standard of care, although they are associated with relevant limitations. Accordingly, culture-independent molecular diagnostic procedures might be of help for the identification of the causative pathogen in infected patients...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29416058/divergent-roles-for-antigenic-drive-in-the-aetiology-of-primary-versus-dasatinib-associated-cd8-tcr-v%C3%AE-expansions
#18
Anna Lissina, James E McLaren, Mette Ilander, Emma I Andersson, Catherine S Lewis, Mathew Clement, Andrew Herman, Kristin Ladell, Sian Llewellyn-Lacey, Kelly L Miners, Emma Gostick, J Joseph Melenhorst, A John Barrett, David A Price, Satu Mustjoki, Linda Wooldridge
CD8+ T-cell expansions are the primary manifestation of T-cell large granular lymphocytic leukemia (T-LGLL), which is frequently accompanied by neutropenia and rheumatoid arthritis, and also occur as a secondary phenomenon in leukemia patients treated with dasatinib, notably in association with various drug-induced side-effects. However, the mechanisms that underlie the genesis and maintenance of expanded CD8+ T-cell receptor (TCR)-Vβ+ populations in these patient groups have yet to be fully defined. In this study, we performed a comprehensive phenotypic and clonotypic assessment of expanded (TCR-Vβ+) and residual (TCR-Vβ-) CD8+ T-cell populations in T-LGLL and dasatinib-treated chronic myelogenous leukemia (CML) patients...
February 7, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29415772/kourami-graph-guided-assembly-for-novel-human-leukocyte-antigen-allele-discovery
#19
Heewook Lee, Carl Kingsford
Accurate typing of human leukocyte antigen (HLA) is important because HLA genes play important roles in immune responses and disease genesis. Previously available computational methods are database-matching approaches and their outputs are inherently limited by the completeness of already known types, making them unsuitable for discovery of novel alleles. We have developed a graph-guided assembly technique for classical HLA genes, which can construct allele sequences given high-coverage whole-genome sequencing data...
February 7, 2018: Genome Biology
https://www.readbyqxmd.com/read/29415209/xylogenesis-reveals-the-genesis-and-ecological-signal-of-iadfs-in-pinus-pinea-l-and-arbutus-unedo-l
#20
A Balzano, K Cufar, G Battipaglia, M Merela, P Prislan, G Aronne, V De Micco
Background and Aims: Mediterranean trees have patterns of cambial activity with one or more pauses per year, leading to intra-annual density fluctuations (IADFs) in tree rings. We analysed xylogenesis (January 2015-January 2016) in Pinus pinea L. and Arbutus unedo L., co-occurring at a site on Mt. Vesuvius (southern Italy), to identify the cambial productivity and timing of IADF formation. Methods: Dendrochronological methods and quantitative wood anatomy were applied and enabled IADF identification and classification...
February 3, 2018: Annals of Botany
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