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https://www.readbyqxmd.com/read/28351064/the-early-tech-development-course-experiential-commercialization-education-for-the-medical-academician
#1
Jonathan Servoss, Connie Chang, Jonathan Fay, Kevin Ward
PROBLEM: Research produced by medical academicians holds promise for developing into biomedical innovations in therapeutics, devices, diagnostics, and health care information technology; however, the road to biomedical innovation is fraught with risk, including the challenge of moving from basic research insight onto a viable commercialization path. Compounding this challenge is the growing demand on medical academicians to be more productive in their clinical, teaching, and research duties within a resource-constrained environment...
April 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28350968/induced-pluripotent-stem-cell-derived-cardiomyocytes-cardiac-applications-opportunities-and-challenges
#2
Adrien Moreau, Mohamed Boutjdir, Mohamed Chahine
Chronic diseases are the primary cause of mortality worldwide, accounting for 67% of deaths. One of the major challenges in developing new treatments is the lack of understanding of the exact underlying biological and molecular mechanisms. Chronic cardiovascular diseases are the single most common cause of death worldwide, and sudden deaths due to cardiac arrhythmias account for approximately 50% of all such cases. Traditional genetic screening for genes involved in cardiac disorders is laborious and frequently fails to detect the mutation that explains or causes the disorder...
March 28, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28350964/promoting-vaginal-distribution-of-e7-and-mcl-1-sirna-silencing-nanoparticles-for-cervical-cancer-treatment
#3
Anna Lechanteur, Tania Furst, Brigitte Evrard, Philippe Delvenne, Geraldine Piel, Pascale Hubert
There is an urgent need to develop a less aggressive and more effective treatment against cervical lesions induced by different high-risk human papillomavirus (HR-HPV). We investigated the potential of a cocktail of small interfering RNA (siRNA) directed against the oncoprotein E6 (E6), the oncoprotein E7 (E7) and/or the anti-apoptotic protein MCL-1 (MCL-1). The combination of siRNA anti-E7 and anti-MCL-1 demonstrated high efficacy on multiple HPV16 and HPV18 cell lines and no effects on healthy keratinocytes...
March 28, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28350945/intervertebral-disk-degeneration-and-repair
#4
James Dowdell, Mark Erwin, Theodoe Choma, Alexander Vaccaro, James Iatridis, Samuel K Cho
Intervertebral disk (IVD) degeneration is a natural progression of the aging process. Degenerative disk disease (DDD) is a pathologic condition associated with IVD that has been associated with chronic back pain. There are a variety of different mechanisms of DDD (genetic, mechanical, exposure). Each of these pathways leads to a final common result of unbalancing the anabolic and catabolic environment of the extracellular matrix in favor of catabolism. Attempts have been made to gain an understanding of the process of IVD degeneration with in Vitro studies...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350887/auditory-steady-state-responses-and-cochlear-implants-modeling-the-artifact-response-mixture-in-the-perspective-of-denoising
#5
Faten Mina, Virginie Attina, Yvan Duroc, Evelyne Veuillet, Eric Truy, Hung Thai-Van
Auditory steady state responses (ASSRs) in cochlear implant (CI) patients are contaminated by the spread of a continuous CI electrical stimulation artifact. The aim of this work was to model the electrophysiological mixture of the CI artifact and the corresponding evoked potentials on scalp electrodes in order to evaluate the performance of denoising algorithms in eliminating the CI artifact in a controlled environment. The basis of the proposed computational framework is a neural mass model representing the nodes of the auditory pathways...
2017: PloS One
https://www.readbyqxmd.com/read/28350876/mipe-a-metagenome-based-community-structure-explorer-and-ssu-primer-evaluation-tool
#6
Bin Zou, JieFu Li, Quan Zhou, Zhe-Xue Quan
An understanding of microbial community structure is an important issue in the field of molecular ecology. The traditional molecular method involves amplification of small subunit ribosomal RNA (SSU rRNA) genes by polymerase chain reaction (PCR). However, PCR-based amplicon approaches are affected by primer bias and chimeras. With the development of high-throughput sequencing technology, unbiased SSU rRNA gene sequences can be mined from shotgun sequencing-based metagenomic or metatranscriptomic datasets to obtain a reflection of the microbial community structure in specific types of environment and to evaluate SSU primers...
2017: PloS One
https://www.readbyqxmd.com/read/28350867/dissociation-between-skin-test-reactivity-and-anti-aeroallergen-ige-determinants-among-urban-brazilian-children
#7
Neuza M Alcantara-Neves, Rafael V Veiga, João C M Ponte, Sérgio S da Cunha, Silvia M Simões, Álvaro A Cruz, Maria Yazdanbakhsh, Sheila M Matos, Thiago Magalhães Silva, Camila A Figueiredo, Lain C Pontes-de-Carvalho, Laura C Rodrigues, Rosemeire L Fiaccone, Philip J Cooper, Maurício L Barreto
BACKGROUND: The dissociation between specific IgE and skin prick test reactivity to aeroallergens, a common finding in populations living in low and middle-income countries, has important implications for the diagnosis and treatment of allergic diseases. Few studies have investigated the determinants of this dissociation. In the present study, we explored potential factors explaining this dissociation in children living in an urban area of Northeast Brazil, focusing in particular on factors associated with poor hygiene...
2017: PloS One
https://www.readbyqxmd.com/read/28350842/combination-of-mesenchymal-stem-cell-injection-with-icariin-for-the-treatment-of-diabetes-associated-erectile-dysfunction
#8
Xiyou Wang, Chuanhai Liu, Yong Xu, Ping Chen, Yue Shen, Yansheng Xu, Yubo Zhao, Weihao Chen, Xinyu Zhang, Yun Ouyang, Yi Wang, Changliang Xie, Maojun Zhou, Cuilong Liu
The present study was aimed to examine whether icariin, a traditional Chinese medicine, could improve therapeutic effects of adipose derived mesenchymal stem cells (ADSCs) for diabetes-associated erectile dysfunction (DMED). DMED were induced in rats by intraperitoneal injection of streptozotocin and confirmed by erectile function measurement. Then, rats of diabetic ED were randomly divided to receive the treatment of saline, ADSCs, icariin or ADSCs combined with icariin respectively. Compared with the treatment by ADSCs or icariin alone, intracavernosum injection of ADSCs combined with the following daily gastric gavage of icariin significantly augmented the value of ICP and ICP/MAP (p<0...
2017: PloS One
https://www.readbyqxmd.com/read/28350798/research-priorities-for-harnessing-plant-microbiomes-in-sustainable-agriculture
#9
Posy E Busby, Chinmay Soman, Maggie R Wagner, Maren L Friesen, James Kremer, Alison Bennett, Mustafa Morsy, Jonathan A Eisen, Jan E Leach, Jeffery L Dangl
Feeding a growing world population amidst climate change requires optimizing the reliability, resource use, and environmental impacts of food production. One way to assist in achieving these goals is to integrate beneficial plant microbiomes-i.e., those enhancing plant growth, nutrient use efficiency, abiotic stress tolerance, and disease resistance-into agricultural production. This integration will require a large-scale effort among academic researchers, industry researchers, and farmers to understand and manage plant-microbiome interactions in the context of modern agricultural systems...
March 2017: PLoS Biology
https://www.readbyqxmd.com/read/28350789/dependence-of-cancer-risk-from-environmental-exposures-on-underlying-genetic-susceptibility-an-illustration-with-polycyclic-aromatic-hydrocarbons-and-breast-cancer
#10
Jing Shen, Yuyan Liao, John L Hopper, Mandy Goldberg, Regina M Santella, Mary Beth Terry
BACKGROUND: Most studies of environmental risk factors and breast cancer are conducted using average risk cohorts. METHODS: We examined the association between polycyclic aromatic hydrocarbon (PAH)-albumin adducts in bloods from baseline and breast cancer risk in a prospective nested case-control study (New York site of the BCFR, 80 cases and 156 controls). We estimated the 10-year absolute breast cancer risk by a risk model that uses pedigree information (BOADICEA) and evaluated whether the increased risk from PAH differed by absolute risk...
March 28, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28350769/gait-training-with-visual-feedback-and-proprioceptive-input-to-reduce-gait-asymmetry-in-adults-with-cerebral-palsy-a-case-series
#11
Ilana Levin, Michael D Lewek, Jeff Feasel, Deborah E Thorpe
PURPOSE: The purpose of this case series was to investigate the feasibility of using visual feedback on gait asymmetry during gait retraining and whether this leads to reduced asymmetry, improvement in gait speed, cost of walking, and dynamic balance in ambulant adults with cerebral palsy (CP). METHODS: Five adults with CP, who were ambulatory and had step length or stance time asymmetry, trained for 18 sessions on a split-belt treadmill with concurrent visual feedback from a virtual environment...
April 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28350733/using-pas-in-prehospital-environments-to-reduce-ed-and-ems-overuse
#12
Katherine M Thompson, William L Tozier
Emergency medical services (EMS) and EDs in large cities are burdened with a significant number of patients with chronic disease who have limited options for receiving proper care. Despite their relatively small numbers, these "superusers" can have a significant effect on EMS, particularly in large cities. Additionally, EDs are not designed to provide chronic and continuous healthcare. This article describes how several organizations use physician assistants to manage these patients.
April 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28350663/the-combination-of-tissue-dissection-and-external-volume-expansion-generates-large-volumes-of-adipose-tissue
#13
Yunfan He, Ziqing Dong, Gan Xie, Tao Zhou, Feng Lu
BACKGROUND: Noninvasive external volume expansion device has been applied to stimulate nonsurgical breast enlargement in clinical settings. Although previous results demonstrate the capacity of external volume expansion to increase the number of adipocytes, this strategy alone is insufficient to reconstruct soft-tissue defects or increase breast mass. The authors combined a minimally invasive tissue dissection method with external volume expansion to generate large volumes of adipose tissue...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28350637/physician-perception-of-the-role-of-the-patient-portal-in-pediatric-health
#14
Ruth A Bush, Cynthia D Connelly, Alexa Pérez, Neilson Chan, Cynthia Kuelbs, George J Chiang
The patient portal, increasingly available to patients, allows secure electronic communication with physicians. Although physician attitude toward the portal plays a crucial role in patient adoption, little information regarding physician opinion of the portal is available, with almost no information gathered in the pediatric environment. Using a mixed-methods approach, physicians in a large pediatric medical facility and integrated delivery network were surveyed using an online quantitative questionnaire and structured interviews...
March 27, 2017: Journal of Ambulatory Care Management
https://www.readbyqxmd.com/read/28350510/a-qualitative-study-of-a-maintenance-support-program-for-women-at-risk-of-homelessness-part-3-societal-factors
#15
Rose McMaster, Violeta Lopez, Rachel Kornhaber, Michelle Cleary
Homelessness is a collective societal problem, and people who are homeless are often treated as society's underclass, stigmatised and excluded. These issues are often exacerbated among homeless people from countries other than the one in which they are currently living. In this paper we report findings from a qualitative study of homeless women, case managers and health professionals from a Maintenance Support Program and their personal accounts and insights into their experiences of the program. This paper presents the third and last sub-theme "societal factors" of the study where the overarching theme was "A life-changing event: I have the power to change...
March 28, 2017: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/28350505/maladaptation-to-acute-metal-exposure-in-resurrected-daphnia-ambigua-clones-after-decades-of-increasing-contamination
#16
Mary Alta Rogalski
Human environmental impacts have driven some of the strongest and fastest phenotypic changes recorded in wild animal populations. Across populations, this variation is often adaptive, because populations evolve fitness advantages in response to human-modified environments. Yet some populations fail to adapt to changing environments. Evidenced by declines in relative fitness, such seemingly maladaptive outcomes are less common but may be more likely in human-modified contexts. Further, our ability to investigate the dynamics of these adaptive and maladaptive responses over time is typically limited in natural systems...
April 2017: American Naturalist
https://www.readbyqxmd.com/read/28350502/complex-relationships-between-competing-guilds-along-large-scale-environmental-gradients
#17
Remi Vergnon, Mark K J Ooi, Robert P Freckleton
Despite much research over the past 30 years, there is still little general understanding of how the outcomes of interactions vary along environmental gradients, particularly at large geographic scales. A simple expectation is that decreasing environmental quality should reduce densities of competitors and hence the effects of competition should weaken in poorer environments. A counterintuitive consequence is that associations between densities of competitors might change from negative to positive as environments decrease in quality...
April 2017: American Naturalist
https://www.readbyqxmd.com/read/28350501/trophic-strategies-of-unicellular-plankton
#18
Subhendu Chakraborty, Lasse Tor Nielsen, Ken H Andersen
Unicellular plankton employ trophic strategies ranging from pure photoautotrophs over mixotrophy to obligate heterotrophs (phagotrophs), with cell sizes from 10(-8) to 1 μg C. A full understanding of how trophic strategy and cell size depend on resource environment and predation is lacking. To this end, we develop and calibrate a trait-based model for unicellular planktonic organisms characterized by four traits: cell size and investments in phototrophy, nutrient uptake, and phagotrophy. We use the model to predict how optimal trophic strategies depend on cell size under various environmental conditions, including seasonal succession...
April 2017: American Naturalist
https://www.readbyqxmd.com/read/28350472/development-of-a-cho-based-cell-free-platform-for-synthesis-of-active-monoclonal-antibodies
#19
Rey W Martin, Natalia I Majewska, Cindy X Chen, Thomas E Albanetti, Rod Brian Jimenez, Albert E Schmelzer, Michael C Jewett, Varnika Roy
Chinese Hamster Ovary (CHO) cells are routinely optimized to stably express monoclonal antibodies (mAbs) at high titers. At the early stages of lead isolation and optimization, hundreds of sequences for the target protein of interest are screened. Typically, cell-based transient expression technology platforms are used for expression screening, but these can be time- and resource-intensive. Here, we have developed a cell-free protein synthesis (CFPS) platform utilizing a commercially available CHO extract for the rapid in vitro synthesis of active, aglycosylated mAbs...
March 28, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28350441/chemical-probes-unravel-an-antimicrobial-defense-response-triggered-by-binding-of-the-human-opioid-dynorphin-to-a-bacterial-sensor-kinase
#20
Megan Holly Wright, Christian Fetzer, Stephan A Sieber
Host-microbe communication via small molecule signals is important for both symbiotic and pathogenic relationships, but is often poorly understood at the molecular level. Under conditions of host stress, levels of the human opioid peptide dynorphin are elevated, triggering virulence in the opportunistic pathogenic bacterium Pseudomonas aeruginosa via an unknown pathway. Here we apply a multilayered chemical biology strategy to unravel the mode of action of this putative interkingdom signal. We designed and applied dynorphin-inspired photoaffinity probes to reveal the protein targets of the peptide in live bacteria via chemical proteomics...
March 28, 2017: Journal of the American Chemical Society
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