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https://www.readbyqxmd.com/read/28098912/microrna-9-limits-hepatic-fibrosis-by-suppressing-the-activation-and-proliferation-of-hepatic-stellate-cells-by-directly-targeting-mrp1-abcc1
#1
Jie Sun, Huanying Zhang, Liying Li, Lianfeng Yu, Lifang Fu
Liver fibrosis is a chronic liver disease characterized by the proliferation and activation of hepatic stellate cells (HSCs) and excessive deposition of extracellular matrix (ECM). Research suggests that microRNAs (miRNAs) are a new type of regulator of liver fibrosis. In the present study, we investigated the role of microRNA-9 (miR-9) in the process of liver fibrosis, as well as the underlying mechanism of action. Downregulated levels of miR-9 were found in fibrotic liver tissues and activated HSCs as detected by qRT-PCR; whereas, expression of multidrug resistance‑associated protein 1 (MRP1/ABCC1) was upregulated in the fibrotic liver tissues and activated HSCs...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098825/optical-fibre-sensors-using-graphene-based-materials-a-review
#2
REVIEW
Miguel Hernaez, Carlos R Zamarreño, Sonia Melendi-Espina, Liam R Bird, Andrew G Mayes, Francisco J Arregui
Graphene and its derivatives have become the most explored materials since Novoselov and Geim (Nobel Prize winners for Physics in 2010) achieved its isolation in 2004. The exceptional properties of graphene have attracted the attention of the scientific community from different research fields, generating high impact not only in scientific journals, but also in general-interest newspapers. Optical fibre sensing is one of the many fields that can benefit from the use of these new materials, combining the amazing morphological, chemical, optical and electrical features of graphene with the advantages that optical fibre offers over other sensing strategies...
January 14, 2017: Sensors
https://www.readbyqxmd.com/read/28098746/marine-antibody-drug-conjugates-design-strategies-and-research-progress
#3
REVIEW
Yu-Jie Wang, Yu-Yan Li, Xiao-Yu Liu, Xiao-Ling Lu, Xin Cao, Bing-Hua Jiao
Antibody-drug conjugates (ADCs), constructed with monoclonal antibodies (mAbs), linkers, and natural cytotoxins, are innovative drugs developed for oncotherapy. Owing to the distinctive advantages of both chemotherapy drugs and antibody drugs, ADCs have obtained enormous success during the past several years. The development of highly specific antibodies, novel marine toxins' applications, and innovative linker technologies all accelerate the rapid R&D of ADCs. Meanwhile, some challenges remain to be solved for future ADCs...
January 13, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28098627/global-collaboration-in-acute-care-clinical-research-opportunities-challenges-and-needs
#4
John C Marshall
The most impactful research in critical care comes from trials groups led by clinician-investigators who study questions arising through the day-to-day care of critically ill patients. The success of this model reflects both "necessity"-the paucity of new therapies introduced through industry-led research-and "clinical reality"-nuanced modulation of standard practice can have substantial impact on clinically important outcomes. Success in a few countries has fueled efforts to build similar models around the world and to collaborate on an unprecedented scale in large international trials...
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28098513/attrition-and-retention-in-upper-limb-prosthetics-research-experience-of-the-va-home-study-of-the-deka-arm
#5
Linda Resnik, Shana Klinger
PURPOSE: (1) Describe study attrition; (2) identify reasons for attrition, and (3) discuss implications for prosthetic prescription and design of future device studies. Design and methodological procedures used: Completion phase (during in-laboratory training, after training, or home use) was identified for 42 participants. Qualitative data were analyzed to identify attrition reasons. Reasons were classified as related to the DEKA arm, or not. RESULTS: Study attrition was 57%, with 43% completing the full study...
January 18, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28098492/insomnia-management-in-the-australian-primary-care-setting
#6
Fatema-Tun-Naher Sake, Keith Wong, Delwyn J Bartlett, Bandana Saini
BACKGROUND AND OBJECTIVE: Insomnia is one of the most prevalent and costly sleep disorders presenting in general practice, and when left untreated, has major health consequences. However, studies are limited on how general practitioners respond to this health issue, especially since the reconceptualization of insomnia in DSM 5. Therefore, the aim of this study was to explore how insomnia is diagnosed and treated in Australian general practices. PARTICIPANTS: Twenty-four (54% male) general practitioners were recruited throughout the greater Sydney metropolitan area in New South Wales using the professional network of research team members and snowballing technique...
January 18, 2017: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/28098321/the-shortest-th-th-distance-from-a-new-type-of-quadruple-bond
#7
Han-Shi Hu, Nikolas Kaltsoyannis
Compounds featuring unsupported metal-metal bonds between actinide elements remain highly sought after yet confined experimentally to inert gas matrix studies. Notwithstanding this paucity, actinide-actinide bonding has been the subject of extensive computational research. In this contribution, high level quantum chemical calculations at both the scalar and spin-orbit levels are used to probe the Th-Th bonding in a range of zero valent systems of general formula LThThL. Several of these compounds have very short Th-Th bonds arising from a new type of Th-Th quadruple bond with a previously unreported electronic configuration featuring two unpaired electrons in 6d-based δ bonding orbitals...
January 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28097904/estimated-burden-of-cardiovascular-disease-and-value-based-price-range-for-evolocumab-in-a-high-risk-secondary-prevention-population-in-the-us-payer-context
#8
Peter P Toth, Mark Danese, Guillermo Villa, Yi Qian, Anne Beaubrun, Armando Lira, Jeroen P Jansen
AIM: To estimate real-world cardiovascular disease (CVD) burden and value-based price range of evolocumab for a US-context, high-risk, secondary-prevention population. MATERIALS AND METHODS: Burden of CVD was assessed using the UK-based Clinical Practice Research Datalink (CPRD) in order to capture complete CV burden including CV mortality. Patients on standard of care (SOC; high-intensity statins) in CPRD were selected based on eligibility criteria of FOURIER, a phase 3 CV outcomes trial of evolocumab, and categorized into 4 cohorts: high-risk prevalent atherosclerotic CVD (ASCVD) cohort (N = 1448), acute coronary syndrome (ACS) (N = 602), ischemic stroke (IS) (N = 151), and heart failure (HF) (N = 291) incident cohorts...
January 18, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28097879/metabolomics-biomarkers-for-tuberculosis-diagnostics-current-status-and-future-objectives
#9
Ilse du Preez, Laneke Luies, Du Toit Loots
Numerous studies have contributed to our current understanding of the complex biology of pulmonary tuberculosis and subsequently provided solutions to its control or eradication. Metabolomics, a newcomer to the Omics research domain, has significantly contributed to this understanding by identifying biomarkers originating from the disease-associated metabolome adaptations of both the microbe and host. These biomarkers have shed light on previously unknown disease mechanisms, many of which have been implemented toward the development of improved diagnostic strategies...
January 18, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28097830/plant-phosphatidylinositol-specific-phospholipase-cat-the-center-of-plant-innate-immunity
#10
Ahmed M AbdEl-Haliem, Matthieu H A J Joosten
Understanding plant resistance to pathogenic microbes requires detailed information on the molecular mechanismscontrolling the execution of plant innate immune-responses.A growing body of evidence places phosphoinositide-specific phospholipase C (PI-PLC) enzymes immediately downstream of activated immune receptors,well upstream of the initiation of early defense responses. An increase of the cytoplasmic levels of free Ca(2+) , lowering of the intercellular pH andthe oxidative burst are a few examples ofsuch responses and these are regulated by PI-PLCs...
January 18, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28097825/signalling-pathways-involved-in-hypoxia-induced-renal-fibrosis
#11
REVIEW
Minna Liu, Xiaoxuan Ning, Rong Li, Zhen Yang, Xiaoxia Yang, Shiren Sun, Qi Qian
Renal fibrosis is the common pathological hallmark of progressive chronic kidney disease (CKD) with diverse aetiologies. Recent researches have highlighted the critical role of hypoxia during the development of renal fibrosis as a final common pathway in end-stage kidney disease (ESKD), which joints the scientist's attention recently to exploit the molecular mechanism underlying hypoxia-induced renal fibrogenesis. The scaring formation is a multilayered cellular response and involves the regulation of multiple hypoxia-inducible signalling pathways and complex interactive networks...
January 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28097707/covalent-bond-formation-via-on-surface-chemistry
#12
REVIEW
Philipp Alexander Held, Harald Fuchs, Armido Studer
In this Review article pioneering work and recent achievements in the emerging research area of on-surface chemistry is discussed. On-surface chemistry, sometimes also called two-dimensional chemistry, shows great potential for bottom-up preparation of defined nanostructures. In contrast to traditional organic synthesis, where reactions are generally conducted in well-defined reaction flasks in solution, on-surface chemistry is performed in the cavity of a scanning probe microscope on a metal crystal under ultrahigh vacuum conditions...
January 18, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28097639/risk-of-bleeding-and-repeated-bleeding-events-in-prasugrel-treated-patients-a-review-of-data-from-the-japanese-prasfit-studies
#13
REVIEW
Masakatsu Nishikawa, Takaaki Isshiki, Takeshi Kimura, Hisao Ogawa, Hiroyoshi Yokoi, Shunichi Miyazaki, Yasuo Ikeda, Masato Nakamura, Yuko Tanaka, Shigeru Saito
Prasugrel is a third-generation thienopyridine that achieves potent platelet inhibition with less pharmacological variability than other thienopyridines. However, clinical experience suggests that prasugrel may be associated with a higher risk of de novo and recurrent bleeding events compared with clopidogrel in Japanese patients undergoing percutaneous coronary intervention (PCI). In this review, we evaluate the risk of bleeding in Japanese patients treated with prasugrel at the doses (loading/maintenance doses: 20/3...
January 17, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28097613/stakeholder-contributions-to-assessment-monitoring-and-conservation-of-threatened-species-black-skimmer-and-red-knot-as-case-studies
#14
Joanna Burger, Michael Gochfeld, Larry Niles, Nellie Tsipoura, David Mizrahi, Amanda Dey, Christian Jeitner, Taryn Pittfield
Stakeholder contributions to conservation projects often occur during the problem formulation stage, yet the role of stakeholders throughout the process is seldom considered. We examine the diversity of state and federal agencies, conservation organizations, other non-governmental organizations, environmental justice communities, consultants, industry, and the general public in the conservation of red knot (Calidris canutus rufa) and black skimmer (Rynchops niger) in New Jersey. We suggest that (1) governmental agencies provide the legal, regulatory, and management framework, but it is often the universities, conservation organizations, consultants, and the public that conduct the research and perform activities that lead to increased research and conservation efforts; (2) departments within agencies may have conflicting mandates, making it difficult to resolve differences in actions; (3) there is often conflict among and within state agencies and conservation organizations about roles and priorities; and (4) the role of the public is critical to ongoing research and conservation efforts...
February 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28097597/self-powered-active-sensor-with-concentric-topography-of-piezoelectric-fibers
#15
Yiin Kuen Fuh, Zih Ming Huang, Bo Sheng Wang, Shan Chien Li
In this study, we demonstrated a flexible and self-powered sensor based on piezoelectric fibers in the diameter range of nano- and micro-scales. Our work is distinctively different from previous electrospinning research; we fabricated this apparatus precisely via near-field electrospinning which has a spectacular performance to harvest mechanical deformation in arbitrary direction and a novel concentrically circular topography. There are many piezoelectric devices based on electrospinning polymeric fibers. However, the fibers were mostly patterned in parallel lines and they could be actuated in limited direction only...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28097472/proceedings-of-the-third-international-molecular-pathological-epidemiology-mpe-meeting
#16
REVIEW
Peter T Campbell, Timothy R Rebbeck, Reiko Nishihara, Andrew H Beck, Colin B Begg, Alexei A Bogdanov, Yin Cao, Helen G Coleman, Gordon J Freeman, Yujing J Heng, Curtis Huttenhower, Rafael A Irizarry, N Sertac Kip, Franziska Michor, Daniel Nevo, Ulrike Peters, Amanda I Phipps, Elizabeth M Poole, Zhi Rong Qian, John Quackenbush, Harlan Robins, Peter K Rogan, Martha L Slattery, Stephanie A Smith-Warner, Mingyang Song, Tyler J VanderWeele, Daniel Xia, Emily C Zabor, Xuehong Zhang, Molin Wang, Shuji Ogino
Molecular pathological epidemiology (MPE) is a transdisciplinary and relatively new scientific discipline that integrates theory, methods, and resources from epidemiology, pathology, biostatistics, bioinformatics, and computational biology. The underlying objective of MPE research is to better understand the etiology and progression of complex and heterogeneous human diseases with the goal of informing prevention and treatment efforts in population health and clinical medicine. Although MPE research has been commonly applied to investigating breast, lung, and colorectal cancers, its methodology can be used to study most diseases...
January 17, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28097325/imaging-locally-advanced-recurrent-and-metastatic-prostate-cancer-a-review
#17
Maria L Lindenberg, Baris Turkbey, Esther Mena, Peter L Choyke
Importance: Prostate cancer is the second leading cause of cancer deaths in US men. The course of prostate cancer is highly variable, and timely and accurate detection of clinically significant cancer is critical in positively affecting outcomes. Observations: Molecular imaging methods and magnetic resonance imaging (MRI) are the most promising new developments for prostate tumor visualization. While the benefits of MRI are many, positron emission tomography (PET) radiotracers are still available only as research tools...
January 12, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28097316/evaluation-of-structural-progression-in-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy
#18
Thomas P Mast, Cynthia A James, Hugh Calkins, Arco J Teske, Crystal Tichnell, Brittney Murray, Peter Loh, Stuart D Russell, Birgitta K Velthuis, Daniel P Judge, Dennis Dooijes, Ryan J Tedford, Jeroen F van der Heijden, Harikrishna Tandri, Richard N Hauer, Theodore P Abraham, Pieter A Doevendans, Anneline S J M Te Riele, Maarten J Cramer
Importance: Considerable research has described the arrhythmic course of arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C). However, objective data characterizing structural progression, such as ventricular enlargement and cardiac dysfunction, in ARVD/C are relatively scarce. Objectives: To define the extent of structural progression, identify determinants of structural progression, and determine the association between structural progression and electrocardiographic (ECG) changes in patients with ARVD/C...
January 11, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28097099/comparison-of-vitamin-d-levels-in-naive-treated-and-inactive-carriers-with-chronic-hepatitis-b-virus
#19
Shahnaz Sali, Soheil Tavakolpour, Baharan Farkhondemehr
Background and Aims: During recent years, the relationship between vitamin D levels and chronic hepatitis B (CHB) infection has attracted many researchers' attention. However, the results relating to the association of vitamin D levels and HBV infection have been conflicting and there remains a lack of knowledge about the effects of antiviral treatments on vitamin D level. Methods: Eighty-four patients with CHB were assessed and divided into three groups: inactive carriers (n = 28), treated (n = 34), and new (treatment-naïve) cases (n = 22)...
December 28, 2016: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28096747/implementing-a-3d-printing-service-in-a-biomedical-library
#20
Verma Walker
Three-dimensional (3D) printing is opening new opportunities in biomedicine by enabling creative problem solving, faster prototyping of ideas, advances in tissue engineering, and customized patient solutions. The National Institutes of Health (NIH) Library purchased a Makerbot Replicator 2 3D printer to give scientists a chance to try out this technology. To launch the service, the library offered training, conducted a survey on service model preferences, and tracked usage and class attendance. 3D printing was very popular, with new lab equipment prototypes being the most common model type...
January 2017: Journal of the Medical Library Association: JMLA
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