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https://www.readbyqxmd.com/read/28097929/improved-survival-of-anchorage-dependent-cells-in-core-shell-hydrogel-microcapsules-via-co-encapsulation-with-cell-friendly-microspheres
#1
In-Yong Kim, Hyungsoo Choi, Kyekyoon Kevin Kim
In this study, we investigated the effect of intracapsular environment on the survival of anchorage-dependent cells (ADCs) encapsulated in alginate microcapsules with three different core structures, i.e., liquid, semi-liquid and microsphere-encapsulating semi-liquid core, using NIH 3T3 fibroblasts as an ADC model. For the latter, we fabricated poly (ε-caprolactone) microspheres and co-encapsulated them with the cells, to establish cell-substrate interactions in the capsule. The fibroblast cells co-encapsulated with the microspheres exhibited higher survival and growth than those without...
January 18, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28096747/implementing-a-3d-printing-service-in-a-biomedical-library
#2
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
https://www.readbyqxmd.com/read/28096313/opportunities-to-reduce-ct-radiation-exposure-experience-over-5-years-at-the-nih-clinical-center
#3
William C Kovacs, Jianhua Yao, David A Bluemke, Les R Folio
Our current study was undertaken in order to compare CT exposures during various dose-reduction initiatives at the National Institutes of Health Clinical center, to show trends in exposure reduction over a 5-y period, and to provide benchmarks that other facilities may use. Using an in-house extraction tool (Radiation Exposure Extraction Engine), we derived CT exposure data from Digital Imaging and Communications in Medicine (DICOM) headers over 5 y. We present parameters used and compare most common exams between 2010 and 2015...
January 16, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28092394/morphological-evaluation-of-meibomian-glands-in-children-and-adolescents-using-noncontact-infrared-meibography
#4
Yuan Wu, Haili Li, Yun Tang, Xiaoming Yan
PURPOSE: To compare, in vivo, differences in meibomian gland morphology between children and adolescents. METHODS: Sixty-nine patients were included in this study and divided into two groups: children (n = 31; age range: 3 to 11 years) and adolescents (n = 39; age range: 12 to 18 years). Images of meibomian glands were obtained by infrared meibography and analyzed using ImageJ software (developed by the National Institutes of Health; available at http://rsb.info...
January 13, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28090717/enantioselective-nih-pmrox-catalyzed-1-2-reduction-of-%C3%AE-%C3%AE-unsaturated-ketones
#5
Fenglin Chen, Yao Zhang, Lei Yu, Shaolin Zhu
The enantioselective 1,2-reduction of α,β-unsaturated ketones was achieved using a NiH catalyst in the presence of pinacolborane. This mild process represents a general method to access a wide variety of structurally diverse α-chiral allylic alcohols in excellent yields and enantioselectivity, as well as very high levels of ambidoselectivity for 1,2- over 1,4-reduction. Furthermore, for reactions on a 10 mmol scale, catalyst loadings as low as 0.5 mol % could be employed to deliver product without any detrimental effect on the yield, enantio-, or ambidoselectivity...
January 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28090649/-the-pharmacogenomics-research-network-translational-pharmacogenetics-program-outcomes-and-metrics-of-pharmacogenetic-implementations-across-diverse-healthcare-systems
#6
Jasmine A Luzum, Ruth E Pakyz, Amanda R Elsey, Cyrine E Haidar, Josh F Peterson, Michelle Whirl-Carrillo, Samuel K Handelman, Kathleen Palmer, Jill M Pulley, Marc Beller, Jonathan S Schildcrout, Julie R Field, Kristin W Weitzel, Rhonda M Cooper-DeHoff, Larisa H Cavallari, Peter H O'Donnell, Russ B Altman, Naveen Pereira, Mark J Ratain, Dan M Roden, Peter J Embi, Wolfgang Sadee, Teri E Klein, Julie A Johnson, Mary V Relling, Liewei Wang, Richard M Weinshilboum, Alan R Shuldiner, Robert R Freimuth
Numerous pharmacogenetic clinical guidelines and recommendations have been published, but barriers have hindered the clinical implementation of pharmacogenetics. The Translational Pharmacogenetics Program (TPP) of the NIH Pharmacogenomics Research Network was established in 2011 to catalog and contribute to the development of pharmacogenetic implementations at eight US healthcare systems, with the goal to disseminate real-world solutions for the barriers to clinical pharmacogenetic implementation. The TPP collected and normalized pharmacogenetic implementation metrics through June 2015, including gene-drug pairs implemented, interpretations of alleles and diplotypes, numbers of tests performed and actionable results, and workflow diagrams...
January 16, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28089557/lower-total-and-regional-grey-matter-brain-volumes-in-youth-with-perinatally-acquired-hiv-infection-associations-with-hiv-disease-severity-substance-use-and-cognition
#7
C Paula Lewis-De Los Angeles, Paige L Williams, Yanling Huo, Shirlene D Wang, Kristina A Uban, Megan M Herting, Kathleen Malee, Ram Yogev, John G Csernansky, Sharon Nichols, Russell B Van Dyke, Elizabeth R Sowell, Lei Wang
Despite improved survival due to combination antiretroviral therapy (cART), youth with perinatally-acquired HIV (PHIV) show cognitive deficits and developmental delay at increased rates. HIV affects the brain during critical periods of development, and the brain may be a persistent reservoir for HIV due to suboptimal blood brain barrier penetration of cART. We conducted structural magnetic resonance imaging (sMRI) and cognitive testing in 40 PHIV youth (mean age=16.7 years) recruited from the NIH Pediatric HIV/AIDS Cohort Study (PHACS) who are part of the first generation of PHIV youth surviving into adulthood...
January 9, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28088511/brief-report-egfr-l858m-l861q-cis-mutations-confer-selective-sensitivity-to-afatinib
#8
Jamie A Saxon, Lynette M Sholl, Pasi A Jänne
INTRODUCTION: Tyrosine kinase inhibitors (TKIs) have been developed to treat patients with epidermal growth factor receptor (EGFR)-mutant lung cancers. However, the therapeutic efficacy of TKIs in patients with uncommon EGFR mutations remains unclear. METHODS: Next-generation sequencing was performed on a patient's lung adenocarcinoma tumor sample, revealing rare combined in cis (on the same allele) EGFR mutations. Stable Ba/F3 and NIH-3T3 cell lines harboring the mutations were established to investigate the effect of first, second, and third generation EGFR TKIs on cell proliferation by MTS assay and EGFR phosphorylation by Western blotting...
January 11, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28081337/do-anxiety-and-depression-statuses-differ-in-differentpolycystic-ovary-syndrome-phenotypes
#9
Derya Akdağ Cirik, Berna Dilbaz, Sezin Aksakal, Zeynep Kotan, Runa Özelçi, Funda Akpınar, Leyla Mollamahmutoğlu
BACKGROUND/AIM: To evaluate psychological parameters and health quality profiles in women with reproductive polycystic ovary syndrome (PCOS) phenotypes and age matched controls. MATERIALS AND METHODS: The study groups included 101 women with PCOS (54 with the National Institutes of Health [NIH] phenotype and 47 with the non-NIH phenotype) and 49 healthy female controls. The participants completed anxiety and depression scales and four quality of life domains. RESULTS: We identified the women with PCOS as having a 3...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081079/simple-and-fast-spectral-domain-algorithm-for-quantitative-phase-imaging-of-living-cells-with-digital-holographic-microscopy
#10
Junwei Min, Baoli Yao, Steffi Ketelhut, Christian Engwer, Burkhard Greve, Björn Kemper
We present a simple and fast phase aberration compensation method in digital holographic microscopy (DHM) for quantitative phase imaging of living cells. By analyzing the frequency spectrum of an off-axis hologram, phase aberrations can be compensated for automatically without fitting or pre-knowledge of the setup and/or the object. Simple and effective computation makes the method suitable for quantitative online monitoring with highly variable DHM systems. Results from automated quantitative phase imaging of living NIH-3T3 mouse fibroblasts demonstrate the effectiveness and the feasibility of the method...
January 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28080261/performance-of-hispanics-and-non-hispanic-whites-on-the-nih-toolbox-cognition-battery-the-roles-of-ethnicity-and-language-backgrounds
#11
Ilse Flores, Kaitlin B Casaletto, Maria J Marquine, Anya Umlauf, David J Moore, Dan Mungas, Richard C Gershon, Jennifer L Beaumont, Robert K Heaton
OBJECTIVE: This study examined the influence of Hispanic ethnicity and language/cultural background on performance on the NIH Toolbox Cognition Battery (NIHTB-CB). METHOD: Participants included healthy, primarily English-speaking Hispanic (n = 93; Hispanic-English), primarily Spanish-speaking Hispanic (n = 93; Hispanic-Spanish), and English speaking Non-Hispanic white (n = 93; NH white) adults matched on age, sex, and education levels. All participants were in the NIH Toolbox national norming project and completed the Fluid and Crystallized components of the NIHTB-CB...
January 12, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28079890/structural-insight-into-an-evolutionarily-ancient-programmed-cell-death-regulator-the-crystal-structure-of-marine-sponge-bhp2-bound-to-lb-bak-2
#12
Sofia Caria, Mark G Hinds, Marc Kvansakul
Sponges of the porifera family harbor some of the evolutionary most ancient orthologs of the B-cell lymphoma-2 (Bcl-2) family, a protein family critical to regulation of apoptosis. The genome of the sponge Geodia cydonium contains the putative pro-survival Bcl-2 homolog BHP2, which protects sponge tissue as well as mammalian Hek-293 and NIH-3T3 cells against diverse apoptotic stimuli. The Lake Baikal demosponge Lubomirskia baicalensis has been shown to encode both putative pro-survival Bcl-2 (LB-Bcl-2) and pro-apoptotic Bcl-2 members (LB-Bak-2), which have been implied in axis formation (branches) in L...
January 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28078659/summer-research-training-provides-effective-tools-for-underrepresented-minorities-to-obtain-doctoral-level-degrees
#13
Oluwatoyin A Asojo, Ashish Damania, Teri L Turner, Gayle Slaughter, Kendal D Hirschi
The ethnic, racial, and cultural diversity of the USA is not reflected in its healthcare and biomedical workforce. Undergraduate research programs are used to encourage underrepresented minorities to pursue training for biomedical careers, but there is limited published data on doctoral degree completion rates by participants in these programs. This study evaluates the attainment of doctoral degrees by a NIH-funded cohort of undergraduates from the 1998-2002 Baylor College of Medicine's Summer Medical Research Training (SMART) program...
January 11, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28078484/the-effect-of-surface-charges-on-the-cellular-uptake-of-liposomes-investigated-by-live-cell-imaging
#14
Ji Hee Kang, Woo Young Jang, Young Tag Ko
PURPOSE: Liposomes have been developed as versatile nanocarriers for various pharmacological agents. The effect of surface charges on the cellular uptake of the liposomes has been studied by various methods using mainly fixed cells with inevitable limitations. Live cell imaging has been proposed as an alternative methods to overcome the limitations of the fixed cell-based analysis. In this study, we aimed to investigate the effects of surface charges on cellular association and internalization of the liposomes using live cell imaging...
January 11, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28077426/nut-consumption-and-lung-cancer-risk-results-from-two-large-observational-studies
#15
Jennifer T Lee, Gabriel Y Lai, Linda M Liao, Amy F Subar, Pier Alberto Bertazzi, Angela C Pesatori, Neal D Freedman, Maria Teresa Landi, Tram Kim Lam
BACKGROUND: Epidemiological evidence on the association between nut consumption and lung cancer risk is limited. METHODS: We investigated this relationship in the Environment And Genetics in Lung cancer Etiology (EAGLE) study, a population-based case-control study, and the National Institutes of Health (NIH) American Association of Retired Persons (AARP) Diet and Health Study, a prospective cohort. We identified 2098 lung cases for EAGLE and 18,533 incident cases in AARP...
January 11, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28074545/development-and-testing-of-a-database-of-nih-research-funding-of-aapm-members-a-report-from-aapm-working-group-for-the-development-of-a-research-database-wgdrd
#16
Brendan Whelan, Eduardo Moros, Rebecca Fahrig, James Deye, Thomas Yi, Michael Woodward, Paul Keall, Jeff Siewerdsen
PURPOSE: To produce and maintain a database of National Institutes of Health (NIH) funding of American Association of Physicists in Medicine (AAPM) members, to perform a top level analysis of this data, and to make this data (hereafter referred to as the AAPM research database) available for the use of the AAPM and its members. METHODS: NIH funded research dating back to 1985 is available for public download through the NIH exporter website, and AAPM membership information dating back to 2002 was supplied by the AAPM...
January 11, 2017: Medical Physics
https://www.readbyqxmd.com/read/28073997/beyond-ageist-attitudes-researchers-call-for-nih-action-to-limit-funding-for-older-academics
#17
Eva Kahana, Michael R Slone, Boaz Kahana, Kaitlyn Barnes Langendoerfer, Courtney Reynolds
PURPOSE: This article explores manifestations of ageism in response to a proposed National Institutes of Health (NIH) Emeritus Grant initiative aimed at funding older investigators. DESIGN AND METHODS: Comments were requested by NIH in 2015, through a Request for Information (RFI) as well as a public blog regarding the merits of a proposed grant mechanism that would help older researchers transfer their labs to junior scientists and transition into retirement. This article reports content analysis of comments from 134 respondents to the blog...
January 9, 2017: Gerontologist
https://www.readbyqxmd.com/read/28073974/infertile-women-who-screen-positive-for-depression-are-less-likely-to-initiate-fertility-treatments
#18
Natalie M Crawford, Heather S Hoff, Jennifer E Mersereau
STUDY QUESTION: Are infertile women who screen positive for depression less likely to initiate infertility treatments? SUMMARY ANSWER: Infertile women who screen positive for depression are less likely to initiate treatment for infertility. WHAT IS ALREADY KNOWN: Infertility imposes a psychological burden on many couples. Depression and anxiety have been demonstrated in ~40% of infertile women, which is twice that of fertile women. Further, the psychological burden associated with infertility treatment has been cited as a major factor for discontinuation of infertility care...
January 9, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28073797/physical-and-cultural-determinants-of-postpartum-pelvic-floor-support-and-symptoms-following-vaginal-delivery-a-protocol-for-a-mixed-methods-prospective-cohort-study
#19
Ingrid E Nygaard, Erin Clark, Lauren Clark, Marlene J Egger, Robert Hitchcock, Yvonne Hsu, Peggy Norton, Ana Sanchez-Birkhead, Janet Shaw, Xiaoming Sheng, Michael Varner
INTRODUCTION: Pelvic floor disorders (PFDs), including pelvic organ prolapse (POP), stress and urgency urinary incontinence, and faecal incontinence, are common and arise from loss of pelvic support. Although severe disease often does not occur until women become older, pregnancy and childbirth are major risk factors for PFDs, especially POP. We understand little about modifiable factors that impact pelvic floor function recovery after vaginal birth. This National Institutes of Health (NIH)-funded Program Project, 'Bridging physical and cultural determinants of postpartum pelvic floor support and symptoms following vaginal delivery', uses mixed-methods research to study the influences of intra-abdominal pressure, physical activity, body habitus and muscle fitness on pelvic floor support and symptoms as well as the cultural context in which women experience those changes...
January 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28073756/feature-selection-using-a-one-dimensional-na%C3%A3-ve-bayes-classifier-increases-the-accuracy-of-support-vector-machine-classification-of-cdr3-repertoires
#20
Mattia Cinelli, Yuxin Sun, Katharine Best, James M Heather, Shlomit Reich-Zeliger, Eric Shifrut, Nir Friedman, John Shawe-Taylor, Benny Chain
MOTIVATION: Somatic DNA recombination, the hallmark of vertebrate adaptive immunity, has the potential to generate a vast diversity of antigen receptor sequences. How this diversity captures antigen specificity remains incompletely understood. In this study we use high throughput sequencing to compare the global changes in T cell receptor β chain complementarity determining region 3 (CDR3β) sequences following immunization with ovalbumin administered with complete Freund's adjuvant (CFA) or CFA alone...
January 10, 2017: Bioinformatics
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