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Double edged sword

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https://www.readbyqxmd.com/read/28644222/pas-public-awareness-and-the-popular-media
#1
Reginald D Carter, Ruth Ballweg
From the very beginning, popular media has played an essential role in driving public awareness and recognition of physician assistants (PAs) as major contributors to healthcare. But for PAs, popular media can be a double-edged sword. Over time, the roles of PAs have evolved from bit players to leading characters on television medical dramas. Even so, on some occasions, the roles of PAs have been marginalized and misrepresented. In the future, the PA profession will need to remain vigilant about how PAs are portrayed in the popular media and must learn how to use the full benefit of the media to promote the profession's diversity, flexibility, collegiality, and civic-mindedness...
July 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28633985/autophagy-a-double-edged-sword-to-fight-plant-viruses
#2
Marion Clavel, Simon Michaeli, Pascal Genschik
In metazoans, autophagy is an essential component of host defense against viruses, orchestrating their degradation. Such antiviral functions for autophagy have also been long suspected in the green lineage. Two recent reports provide molecular insights on how plants selectively send viral proteins and even particles to the vacuole.
June 17, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28629173/autophagic-mechanism-in-anti-cancer-immunity-its-pros-and-cons-for-cancer-therapy
#3
REVIEW
Ying-Ying Li, Lynn G Feun, Angkana Thongkum, Chiao-Hui Tu, Shu-Mei Chen, Medhi Wangpaichitr, Chunjing Wu, Macus T Kuo, Niramol Savaraj
Autophagy, a self-eating machinery, has been reported as an adaptive response to maintain metabolic homeostasis when cancer cells encounter stress. It has been appreciated that autophagy acts as a double-edge sword to decide the fate of cancer cells upon stress factors, molecular subtypes, and microenvironmental conditions. Currently, the majority of evidence support that autophagy in cancer cells is a vital mechanism bringing on resistance to current and prospective treatments, yet whether autophagy affects the anticancer immune response remains unclear and controversial...
June 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28622910/the-link-between-morphology-and-complement-in-ocular-disease
#4
Camilla Mohlin, Kerstin Sandholm, Kristina N Ekdahl, Bo Nilsson
The complement system is a vital component of the immune-priveliged human eye that is always active at a low-grade level, preventing harmful intraocular injuries caused by accumulation of turnover products and controlling pathogens to preserve eye homeostasis and vision. The complement system is a double-edged sword that is essential for protection but may also become harmful and contribute to eye pathology. Here, we review the evidence for the involvement of complement system dysregulation in age-related macular degeneration, glaucoma, uveitis, and neuromyelitis optica, highlighting the relationship between morphogical changes and complement system protein expression and regulation in these diseases...
June 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28612706/autophagy-and-its-link-to-type-ii-diabetes-mellitus
#5
Jai-Sing Yang, Chi-Cheng Lu, Sheng-Chu Kuo, Yuan-Man Hsu, Shih-Chang Tsai, Shih-Yin Chen, Yng-Tay Chen, Ying-Ju Lin, Yu-Chuen Huang, Chao-Jung Chen, Wei-De Lin, Wen-Lin Liao, Wei-Yong Lin, Yu-Huei Liu, Jinn-Chyuan Sheu, Fuu-Jen Tsai
Autophagy, a double-edged sword for cell survival, is the research object on 2016 Nobel Prize in Physiology or Medicine. Autophagy is a molecular mechanism for maintaining cellular physiology and promoting survival. Defects in autophagy lead to the etiology of many diseases, including diabetes mellitus (DM), cancer, neurodegeneration, infection disease and aging. DM is a metabolic and chronic disorder and has a higher prevalence in the world as well as in Taiwan. The character of diabetes mellitus is hyperglycemia resulting from defects in insulin secretion, insulin action, or both...
June 2017: BioMedicine
https://www.readbyqxmd.com/read/28600782/dividing-with-extra-centrosomes-a-double-edged-sword-for-cancer-cells
#6
Alexander D Rhys, Susana A Godinho
The presence of supernumerary centrosomes is a hallmark of human tumours. Recent work in animal models suggests that extra centrosomes are not just bystanders in cancer but can accelerate tumourigenesis in the absence of the tumour suppressor p53. Centrosome amplification could indeed actively participate in tumour progression through the induction of chromosome instability, disruption of tissue architecture and promoting cell invasion. Paradoxically, however, centrosome amplification is rather poorly tolerated in normal cells and there are several hurdles cells need to overcome in order to efficiently proliferate in the presence of extra centrosomes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28599247/inflammasomes-the-cardinal-pathology-mediators-are-activated-by-pathogens-allergens-and-mutagens-a-critical-review-with-focus-on-nlrp3
#7
REVIEW
Seema Patel
Inflammation is a pivotal defense system of body. Unfortunately, when homeostasis falters, the same inflammatory mechanism acts as a double-edged sword, and turns offensive, paving the path for a broad array of pathologies. A multi-protein complex termed as inflammasome perceives the PAMPs (pathogen associated molecular patterns) and DAMPs (danger associated molecular patterns), executing immune responses. This activation predominantly encompasses the elaboration of effector cytokines IL-1β, IL-18, and the cysteine proteases (caspase 1 and 11)...
June 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28597069/an-updated-proposal-for-classification-of-infectious-salmon-anemia-virus-strains
#8
Constanza Cárdenas, Nicolás Ojeda, Alvaro Labra, Sergio H Marshall
Biological databases contain a wealth of valuable information that can contribute to the enrichment of virtually any area. However, the exponential growth of information together with its dissemination through virtual networks has become a double-edged sword, promoting synonymy that leads to confusion and chaos. Organization of data is a big effort that must be accompanied by clarity, both in the deposited data and in the publications arising from them. In this report, an effort is made to organize the information related to infectious salmon anemia virus and its classification based on the variability of genomic segment 6...
June 9, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28596659/patterns-of-adverse-transfusion-reactions-in-a-tertiary-care-centre-of-north-india-a-step-towards-hemovigilance
#9
Rajni Bassi, Shikha Aggarwal, Kanchan Bhardwaj, Kusum K Thakur
Transfusion of blood and blood products is a double edged sword, so it should be used judiciously. The primary aim of the centralized Haemovigilance Program is to improve transfusion safety. To determine the incidence of adverse transfusion reactions (ATRs) in recipients of blood and blood components. Prospective study from January 2014 till April 2015 was done. ATRs reported to the Department of Transfusion Medicine were recorded and analyzed on the basis of their clinical features and lab tests. During the study period 25,099 units of blood and blood components were transfused and 100 ATRs (0...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28588582/nanoparticle-based-magnetic-resonance-imaging-on-tumor-associated-macrophages-and-inflammation
#10
REVIEW
Natalie J Serkova
The inflammatory response, mediated by tissue-resident or newly recruited macrophages, is an underlying pathophysiological condition for many diseases, including diabetes, obesity, neurodegeneration, atherosclerosis, and cancer. Paradoxically, inflammation is a double-edged sword in oncology. Macrophages are, generally speaking, the major drivers of inflammatory insult. For many solid tumors, high density of cells expressing macrophage-associated markers have generally been found in association with a poor clinical outcome, characterized by inflamed microenvironment, a high level of dissemination and resistance to conventional chemotherapies...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28580128/imagining-tomorrow-s-university-open-science-and-its-impact
#11
Adina Howe, Michael D Howe, Amy L Kaleita, D Raj Raman
As part of a recent workshop entitled "Imagining Tomorrow's University", we were asked to visualize the future of universities as research becomes increasingly data- and computation-driven, and identify a set of principles characterizing pertinent opportunities and obstacles presented by this shift. In order to establish a holistic view, we take a multilevel approach and examine the impact of open science on individual scholars as well as on the university as a whole. At the university level, open science presents a double-edged sword: when well executed, open science can accelerate the rate of scientific inquiry across the institution and beyond; however, haphazard or half-hearted efforts are likely to squander valuable resources, diminish university productivity and prestige, and potentially do more harm than good...
2017: F1000Research
https://www.readbyqxmd.com/read/28579323/type-i-interferon-in-chronic-virus-infection-and-cancer
#12
REVIEW
Laura M Snell, Tracy L McGaha, David G Brooks
Type I interferons (IFN-Is) are emerging as key drivers of inflammation and immunosuppression in chronic infection. Control of these infections requires IFN-I signaling; however, prolonged IFN-I signaling can lead to immune dysfunction. IFN-Is are also emerging as double-edged swords in cancer, providing necessary inflammatory signals, while initiating feedback suppression in both immune and cancer cells. Here, we review the proinflammatory and suppressive mechanisms potentiated by IFN-Is during chronic virus infections and discuss the similar, newly emerging dichotomy in cancer...
May 31, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28579221/stat3-in-cancer-a-double-edged-sword
#13
Lidia Avalle, Annalisa Camporeale, Andrea Camperi, Valeria Poli
The transcription factor signal transducer and activator of transcription (STAT) 3 is activated downstream of cytokines, growth factors and oncogenes to mediate their functions under both physiological and pathological conditions. In particular, aberrant/unrestrained STAT3 activity is detected in a wide variety of tumors, driving multiple pro-oncogenic functions. For that, STAT3 is widely considered as an oncogene and is the object of intense translational studies. One of the distinctive features of this factor is however, its ability to elicit different and sometimes contrasting effects under different conditions...
May 31, 2017: Cytokine
https://www.readbyqxmd.com/read/28576577/advanced-technology-for-catheter-ablation-of-atrial-fibrillation-a-double-edged-sword
#14
EDITORIAL
Andrea M Russo
No abstract text is available yet for this article.
May 31, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28576474/netrins-as-prophylactic-targets-in-skeletal-diseases-a-double-edged-sword
#15
REVIEW
Kenta Maruyama, Naoki Takemura, Mikaël M Martino, Takeshi Kondo, Shizuo Akira
The netrin family of proteins are involved in axon guidance during central nervous system development. In vertebrates, two membrane bound forms and five secreted forms of netrin have been reported. In addition to their critical role in neural morphogenesis, a growing number of reports suggest that netrin family proteins also play a role in inflammatory conditions, angiogenesis, and tumorigenesis. In these processes, Unc5 and DCC family proteins serve as receptors of netrin proteins. Recently, it was reported that some netrin family proteins may be involved in the pathogenesis of skeletal diseases including osteoporosis and arthritis...
May 30, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28571118/the-role-of-oxidative-stress-in-ebv-lytic-reactivation-radioresistance-and-the-potential-preventive-and-therapeutic-implications
#16
REVIEW
Jianmin Hu, Hongde Li, Xiangjian Luo, Yueshuo Li, Ann Bode, Ya Cao
Epstein-Barr virus (EBV) is an important cancer causing virus. Cancer associated with EBV account for approximately 1.5% of all cancers, and represent 1.8% of all cancer deaths worldwide. EBV reactivation plays an important role in the development of EBV-related diseases and is closely related with patients' survival and clinical stages of EBV-related cancers. The therapy regarding to EBV-related cancers is very urgent, especially in endemic areas. Generating oxidative stress is a critical mechanism by which host cells defend against infection by virus...
June 1, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28566775/orthopedic-surgery-in-cerebral-palsy-instructional-course-lecture
#17
Deepak Sharan
Orthopedic surgery (OS) plays an important role in the management of cerebral palsy (CP). The objectives of OS are to optimize functions and prevent deformity. Newer developments in OS for CP include emphasis on hip surveillance, minimally invasive procedures, use of external fixators instead of plates and screws, better understanding of lever arm dysfunctions (that can only be corrected by bony OS), orthopedic selective spasticity-control surgery, and single-event multilevel lever arm restoration and anti spasticity surgery, which have led to significant improvements in gross motor function and ambulation, especially in spastic quadriplegia, athetosis, and dystonia...
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28557471/the-double-edged-sword-of-leader-charisma-understanding-the-curvilinear-relationship-between-charismatic-personality-and-leader-effectiveness
#18
Jasmine Vergauwe, Bart Wille, Joeri Hofmans, Robert B Kaiser, Filip De Fruyt
This study advanced knowledge on charisma by (a) introducing a new personality-based model to conceptualize and assess charisma and by (b) investigating curvilinear relationships between charismatic personality and leader effectiveness. Moreover, we delved deeper into this curvilinear association by (c) examining moderation by the leader's level of adjustment and by (d) testing a process model through which the effects of charismatic personality on effectiveness are explained with a consideration of specific leader behaviors...
May 29, 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28545888/delivering-safer-immunotherapies-for-cancer
#19
Lauren Milling, Yuan Zhang, Darrell J Irvine
Cancer immunotherapy is now a powerful clinical reality, with a steady progression of new drug approvals and a massive pipeline of additional treatments in clinical and preclinical development. However, modulation of the immune system can be a double-edged sword: Drugs that activate immune effectors are prone to serious non-specific systemic inflammation and autoimmune side effects. Drug delivery technologies have an important role to play in harnessing the power of immune therapeutics while avoiding on-target/off-tumor toxicities...
May 22, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28542620/elevated-catalase-expression-in-a-fungal-pathogen-is-a-double-edged-sword-of-iron
#20
Arnab Pradhan, Carmen Herrero-de-Dios, Rodrigo Belmonte, Susan Budge, Angela Lopez Garcia, Aljona Kolmogorova, Keunsook K Lee, Brennan D Martin, Antonio Ribeiro, Attila Bebes, Raif Yuecel, Neil A R Gow, Carol A Munro, Donna M MacCallum, Janet Quinn, Alistair J P Brown
Most fungal pathogens of humans display robust protective oxidative stress responses that contribute to their pathogenicity. The induction of enzymes that detoxify reactive oxygen species (ROS) is an essential component of these responses. We showed previously that ectopic expression of the heme-containing catalase enzyme in Candida albicans enhances resistance to oxidative stress, combinatorial oxidative plus cationic stress, and phagocytic killing. Clearly ectopic catalase expression confers fitness advantages in the presence of stress, and therefore in this study we tested whether it enhances fitness in the absence of stress...
May 2017: PLoS Pathogens
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