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https://www.readbyqxmd.com/read/28335993/biomaterials-innovation-for-next-generation-ex%C3%A2-vivo-immune-tissue-engineering
#1
REVIEW
Ankur Singh
Primary and secondary lymphoid organs are tissues that facilitate differentiation of B and T cells, leading to the induction of adaptive immune responses. These organs are present in the body from birth and are also recognized as locations where self-reactive B and T cells can be eliminated during the natural selection process. Many insights into the mechanisms that control the process of immune cell development and maturation in response to infection come from the analysis of various gene-deficient mice that lack some or all hallmark features of lymphoid tissues...
March 15, 2017: Biomaterials
https://www.readbyqxmd.com/read/28335857/modeling-syndromic-congenital-heart-defects-in-zebrafish
#2
Meagan G Grant, Victoria L Patterson, Daniel T Grimes, Rebecca D Burdine
Cardiac development is a dynamic process regulated by spatial and temporal cues that are integrated to effect molecular, cellular, and tissue-level events that form the adult heart. Disruption of these highly orchestrated events can be devastating for cardiac form and function. Aberrations in heart development result in congenital heart defects (CHDs), which affect 1 in 100 infants in the United States each year. Zebrafish have proven informative as a model organism to understand both heart development and the mechanisms associated with CHDs due to the similarities in heart morphogenesis among vertebrates, as well as their genetic tractability and amenability to live imaging...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28335511/1st-workshop-of-the-canadian-society-for-virology
#3
Craig McCormick, Nathalie Grandvaux
The 1st Workshop of the Canadian Society for Virology (CSV2016) was a Special Workshop of the 35th Annual Meeting for the American Society for Virology, held on 18 June 2016 on the beautiful Virginia Tech campus in Blacksburg, Virginia. The workshop provided a forum for discussion of recent advances in the field, in an informal setting conducive to interaction with colleagues. CSV2016 featured two internationally-renowned Canadian keynote speakers who discussed translational virology research; American Society for Virology President Grant McFadden (then from University of Florida, now relocated to Arizona State University) who presented his studies of oncolytic poxviruses, while Matthew Miller (McMaster University) reviewed the prospects for a universal influenza vaccine...
March 20, 2017: Viruses
https://www.readbyqxmd.com/read/28334030/measuring-mortality-due-to-hiv-associated-tuberculosis-among-adults-in-south-africa-comparing-verbal-autopsy-minimally-invasive-autopsy-and-research-data
#4
Aaron S Karat, Mpho Tlali, Katherine L Fielding, Salome Charalambous, Violet N Chihota, Gavin J Churchyard, Yasmeen Hanifa, Suzanne Johnson, Kerrigan McCarthy, Neil A Martinson, Tanvier Omar, Kathleen Kahn, Daniel Chandramohan, Alison D Grant
BACKGROUND: The World Health Organization (WHO) aims to reduce tuberculosis (TB) deaths by 95% by 2035; tracking progress requires accurate measurement of TB mortality. International Classification of Diseases (ICD) codes do not differentiate between HIV-associated TB and HIV more generally. Verbal autopsy (VA) is used to estimate cause of death (CoD) patterns but has mostly been validated against a suboptimal gold standard for HIV and TB. This study, conducted among HIV-positive adults, aimed to estimate the accuracy of VA in ascertaining TB and HIV CoD when compared to a reference standard derived from a variety of clinical sources including, in some, minimally-invasive autopsy (MIA)...
2017: PloS One
https://www.readbyqxmd.com/read/28333785/improving-decision-making-for-advanced-heart-failure-patients-and-caregivers
#5
Colleen K McIlvennan
In this month's Magnet® Perspectives column, Colleen K. McIlvennan, DNP, ANP, lead nurse practitioner, Advanced Heart Failure and Transplantation at the University of Colorado, discusses her groundbreaking research encompassing patients' and caregivers' emotional, rational, and fundamental beliefs when considering a left ventricular assist device (LVAD). Results have led to the development of 2 innovative decision aids that are currently in use by LVAD programs across the United States and Canada. Dr McIlvennan's efforts led to a $2 million grant from the Patient-Centered Outcomes Research Institute, as well as national recognition from the American Heart Association and the Heart Failure Society of America...
April 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/28333338/drug-discovery-for-male-subfertility-using-high-throughput-screening-a-new-approach-to-an-unsolved-problem
#6
Sarah J Martins da Silva, Sean G Brown, Keith Sutton, Louise V King, Halil Ruso, David W Gray, Paul G Wyatt, Mark C Kelly, Christopher L R Barratt, Anthony G Hope
STUDY QUESTION: Can pharma drug discovery approaches be utilized to transform investigation into novel therapeutics for male infertility? SUMMARY ANSWER: High-throughput screening (HTS) is a viable approach to much-needed drug discovery for male factor infertility. WHAT IS KNOWN ALREADY: There is both huge demand and a genuine clinical need for new treatment options for infertile men. However, the time, effort and resources required for drug discovery are currently exorbitant, due to the unique challenges of the cellular, physical and functional properties of human spermatozoa and a lack of appropriate assay platform...
March 16, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333304/further-insights-into-the-impact-of-mouse-follicle-stage-on-graft-outcome-in-an-artificial-ovary-environment
#7
M C Chiti, M M Dolmans, C M Lucci, F Paulini, J Donnez, C A Amorim
STUDY QUESTION: Are mouse preantral follicles differently affected by isolation, encapsulation and/or grafting procedures according to stage? SUMMARY ANSWER: Isolated secondary follicles showed superior ability to survive and grow after transplantation, which was not related to a particular effect of the isolation and/or grafting procedure, but rather to their own ability to induce neoangiogenesis. WHAT IS KNOWN ALREADY: Isolated and encapsulated mouse preantral follicles can survive (6-27%) and grow (80-100%) in a fibrin matrix with a low concentration of fibrinogen and thrombin (F12...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333300/comparison-of-global-gene-expression-profiles-of-microdissected-human-foetal-leydig-cells-with-their-normal-and-hyperplastic-adult-equivalents
#8
Grete Lottrup, Kirstine Belling, Henrik Leffers, John E Nielsen, Marlene D Dalgaard, Anders Juul, Niels E Skakkebæk, Søren Brunak, Ewa Rajpert-De Meyts
STUDY QUESTION: Do human adult Leydig cells (ALCs) within hyperplastic micronodules display characteristics of foetal LCs (FLCs)? SUMMARY ANSWER: The gene expression profiles of FLCs and all ALC subgroups were clearly different, but there were no significant differences in expressed genes between the normally clustered and hyperplastic ALCs. WHAT IS KNOWN ALREADY: LCs are the primary androgen producing cells in males throughout development and appear in chronologically distinct populations; FLCs, neonatal LCs and ALCs...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333280/hcg-activates-the-erk1-2-mitogen-activated-protein-kinase-pathway-in-human-endometrial-stromal-cells-transiently-increasing-the-progesterone-receptor-and-regulating-genes-associated-with-endometrial-receptivity
#9
Alejandro Tapia-Pizarro, Sebastián Archiles, Felipe Argandoña, Cecilia Valencia, Keyla Zavaleta, María Cecilia Johnson, Reinaldo González-Ramos, Luigi Devoto
STUDY QUESTION: How does hCG signal in human endometrial stromal cells (ESCs) and what is its role in regulating ESC function? SUMMARY ANSWER: CG signaling in ESCs activates the extracellular signal-regulated protein kinases 1 and 2 (Erk1/2) pathway through exchange protein activated by cAMP (Epac) and transiently increases progesterone receptor (PR) transcript and protein expression and its transcriptional function. WHAT IS KNOWN ALREADY: hCG is one of the earliest embryo-derived secreted signals in the endometrium, which abundantly expresses LH/hCG receptors...
March 14, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333279/inhibition-of-pim1-kinase-attenuates-inflammation-induced-pro-labour-mediators-in-human-fetal-membranes-in-vitro
#10
Ratana Lim, Gillian Barker, Martha Lappas
STUDY QUESTION: Does proviral integration site for Moloney murine leukemic virus (PIM)1 kinase play a role in regulating the inflammatory processes of human labour and delivery? SUMMARY ANSWER: PIM1 kinase plays a critical role in fetal membranes in regulating pro-inflammatory and pro-labour mediators. WHAT IS KNOWN ALREADY: Infection and inflammation have strong causal links to preterm delivery by stimulating pro-inflammatory cytokines and collagen degrading enzymes, which can lead to rupture of membranes...
March 9, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333275/anti-m%C3%A3-llerian-hormone-inhibits-activation-and-growth-of-bovine-ovarian-follicles-in-vitro-and-is-localized-to-growing-follicles
#11
M Y Yang, R A Cushman, J E Fortune
STUDY QUESTION: Does anti-Müllerian hormone (AMH) inhibit activation (initiation of growth) of primordial follicles and attenuate the growth of primary follicles in cattle, an excellent animal model for human ovarian follicular development? SUMMARY ANSWER: AMH inhibited activation of bovine primordial follicles and attenuated the growth of activated follicles in vitro. WHAT IS KNOWN ALREADY: In mice null mutant for AMH, the pool of primordial follicles is depleted prematurely and AMH inhibits follicle activation in vitro...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#12
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333222/ivf-or-iui-as-first-line-treatment-in-unexplained-subfertility-the-conundrum-of-treatment-selection-markers
#13
R I Tjon-Kon-Fat, P Tajik, M H Zafarmand, A J Bensdorp, P M M Bossuyt, G J E Oosterhuis, R van Golde, S Repping, M D A Lambers, E Slappendel, D Perquin, M J Pelinck, J Gianotten, J W M Maas, M J C Eijkemans, F van der Veen, B W Mol, M van Wely
STUDY QUESTION: Are there treatment selection markers that could aid in identifying couples, with unexplained or mild male subfertility, who would have better chances of a healthy child with IVF with single embryo transfer (IVF-SET) than with IUI with ovarian stimulation (IUI-OS)? SUMMARY ANSWER: We did not find any treatment selection markers that were associated with better chances of a healthy child with IVF-SET instead of IUI-OS in couples with unexplained or mild male subfertility...
February 24, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333195/genome-wide-genetic-analyses-highlight-mitogen-activated-protein-kinase-mapk-signaling-in-the-pathogenesis-of-endometriosis
#14
Outi Uimari, Nilufer Rahmioglu, Dale R Nyholt, Katy Vincent, Stacey A Missmer, Christian Becker, Andrew P Morris, Grant W Montgomery, Krina T Zondervan
STUDY QUESTION: Do genome-wide association study (GWAS) data for endometriosis provide insight into novel biological pathways associated with its pathogenesis? SUMMARY ANSWER: GWAS analysis uncovered multiple pathways that are statistically enriched for genetic association signals, analysis of Stage A disease highlighted a novel variant in MAP3K4, while top pathways significantly associated with all endometriosis and Stage A disease included several mitogen-activated protein kinase (MAPK)-related pathways...
February 9, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28332835/toward-nucleating-the-concept-of-the-water-resource-recovery-facility-wrrf-perspective-from-the-principal-actors
#15
Erik R Coats, Patrick I Wilson
Wastewater resource recovery has been advocated for decades; necessary structural pathways were long-ago articulated, and established and emerging technologies exist. Nevertheless, broad wastewater valorization remains elusive. In considering implementation barriers, the argument is made that decision-makers focus on avoiding permit violations and negative publicity by embracing a conservative/safe approach - seemingly ignoring research on economic/environmental benefits. Conversely positing that economics is a primary barrier, we investigated, characterized, and described non-technical socio-political barriers to realizing wastewater resource recovery...
March 23, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28330812/molecular-evidence-for-differential-long-term-outcomes-of-early-life-severe-acute-malnutrition
#16
Allan Sheppard, Sherry Ngo, Xiaoling Li, Michael Boyne, Debbie Thompson, Anthony Pleasants, Peter Gluckman, Terrence Forrester
BACKGROUND: Severe acute malnutrition (SAM) in infants may present as one of two distinct syndromic forms: non-edematous (marasmus), with severe wasting and no nutritional edema; or edematous (kwashiorkor) with moderately severe wasting. These differences may be related to developmental changes prior to the exposure to SAM and phenotypic changes appear to persist into adulthood with differences between the two groups. We examined whether the different response to SAM and subsequent trajectories may be explained by developmentally-induced epigenetic differences...
March 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28329179/research-on-skin-cancer-related-behaviors-and-outcomes-in-the-nih-grant-portfolio-2000-2014-skin-cancer-intervention-across-the-cancer-control-continuum-sci-3c
#17
Frank M Perna, Laura A Dwyer, Gina Tesauro, Jennifer M Taber, Wynne E Norton, Anne M Hartman, Alan C Geller
Importance: The Surgeon General's Call to Action to Prevent Skin Cancer broadly identified research gaps, but specific objectives are needed to further behavioral intervention research. Objective: To review National Institute of Health (NIH) grants targeting skin cancer-related behaviors and relevant outcomes. Design, Setting, and Participants: A portfolio analysis of the title, abstract, specific aims, and research plans of identified grant applications from 2000 to 2014 targeting skin cancer-related behaviors or testing behavioral intervention effects on cancer-relevant outcomes along the cancer continuum...
March 22, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28327150/research-impact-of-systems-level-long-term-care-research-a-multiple-case-study
#18
Anita Kothari, Nedra Peter, Melissa Donskov, Tracy Luciani
BACKGROUND: Traditional reporting of research outcomes and impacts, which tends to focus on research product publications and grant success, does not capture the value, some contributions, or the complexity of research projects. The purpose of this study was to understand the contributions of five systems-level research projects as they were unfolding at the Bruyère Centre for Learning, Research and Innovation (CLRI) in long-term care (LTC) in Ottawa, Ontario, Canada. The research questions were, (1) How are partnerships with research end-users (policymakers, administrators and other public/private organisations) characterised? (2) How have interactions with the CLRI Management Committee and Steering Committee influenced the development of research products? (3) In what way have other activities, processes, unlinked actors or organisations been influenced by the research project activities? METHODS: The study was guided by Kok and Schuit's concept of research impacts, using a multiple case study design...
March 21, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28325745/aid-in-dying-laws-and-the-physician-s-duty-to-inform
#19
Mara Buchbinder
On 19 July 2016, three medical organisations filed a federal lawsuit against representatives from several Vermont agencies over the Patient Choice and Control at End of Life Act. The law is similar to aid-in-dying (AID) laws in four other US states, but the lawsuit hinges on a distinctive aspect of Vermont's law pertaining to patients' rights to information. The lawsuit raises questions about whether, and under what circumstances, there is an ethical obligation to inform terminally ill patients about AID as an end-of-life option...
March 21, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28322634/end-of-life-decision-support-in-the-icu
#20
Grant Pignatiello, Ronald L Hickman, Breanna Hetland
Determining effective decision support strategies that enhance quality of end-of-life decision making in the intensive care unit is a research priority. This systematic review identified interventional studies describing the effectiveness of decision support interventions administered to critically ill patients or their surrogate decision makers. We conducted a systematic literature search using PubMed, CINAHL, and Cochrane. Our search returned 121 articles, 22 of which met the inclusion criteria. The search generated studies with significant heterogeneity in the types of interventions evaluated and varied patient and surrogate decision-maker outcomes, which limited the comparability of the studies...
November 1, 2016: Western Journal of Nursing Research
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