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https://www.readbyqxmd.com/read/28543743/detection-and-localization-of-regucalcin-in-spermatozoa-of-water-buffalo-bubalus-bubalis-a-calcium-regulating-multifunctional-protein
#1
H Pillai, A M Shende, M S Parmar, J Thomas, H S Kartha, G Taru Sharma, S K Ghosh, S K Bhure
Regucalcin (RGN) is a calcium-regulating, anti-apoptotic, antioxidative and antiproliferative multifunctional protein predominantly seen in liver and kidney. All these functions are very crucial during spermatogenesis and sperm maturation process until fertilization of the ovum. Although many studies have reported the wide distribution of regucalcin in the male reproductive tract of the rat, human and bovine, its presence in spermatozoa is yet to be demonstrated wherein calcium has a pivotal role in the transport, capacitation, acrosomal reaction and further fusion with ova...
May 24, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28521849/a-writer-s-guide-to-education-scholarship-qualitative-education-scholarship-part-2
#2
Teresa M Chan, Daniel K Ting, Andrew Koch Hall, Aleisha Murnaghan, Brent Thoma, Jill McEwen, Lalena M Yarris
OBJECTIVE: Education scholarship can be conducted using a variety of methods, from quantitative experiments to qualitative studies. Qualitative methods are less commonly used in emergency medicine (EM) education research but are well-suited to explore complex educational problems and generate hypotheses. We aimed to review the literature to provide resources to guide educators who wish to conduct qualitative research in EM education. METHODS: We conducted a scoping review to outline: 1) a list of journals that regularly publish qualitative educational papers; 2) an aggregate set of quality markers for qualitative educational research and scholarship; and 3) a list of quality checklists for qualitative educational research and scholarship...
May 19, 2017: CJEM
https://www.readbyqxmd.com/read/28514963/patient-centered-primary-care-for-adults-at-high-risk-for-auds-the-choosing-healthier-drinking-options-in-primary-care-choice-trial
#3
Katharine A Bradley, Evette Joy Ludman, Laura J Chavez, Jennifer F Bobb, Susan J Ruedebusch, Carol E Achtmeyer, Joseph O Merrill, Andrew J Saxon, Ryan M Caldeiro, Diane M Greenberg, Amy K Lee, Julie E Richards, Rachel M Thomas, Theresa E Matson, Emily C Williams, Eric Hawkins, Gwen Lapham, Daniel R Kivlahan
BACKGROUND: Most patients with alcohol use disorders (AUDs) never receive alcohol treatment, and experts have recommended management of AUDs in primary care. The Choosing Healthier Drinking Options In primary CarE (CHOICE) trial was a randomized controlled effectiveness trial of a novel intervention for primary care patients at high risk for AUDs. This report describes the conceptual and scientific foundation of the CHOICE model of care, critical elements of the CHOICE trial design consistent with the Template for Intervention Description and Replication (TIDieR), results of recruitment, and baseline characteristics of the enrolled sample...
May 17, 2017: Addiction Science & Clinical Practice
https://www.readbyqxmd.com/read/28512093/population-genomic-analysis-of-1-777-extended-spectrum-beta-lactamase-producing-klebsiella-pneumoniae-isolates-houston-texas-unexpected-abundance-of-clonal-group-307
#4
S Wesley Long, Randall J Olsen, Todd N Eagar, Stephen B Beres, Picheng Zhao, James J Davis, Thomas Brettin, Fangfang Xia, James M Musser
Klebsiella pneumoniae is a major human pathogen responsible for high morbidity and mortality rates. The emergence and spread of strains resistant to multiple antimicrobial agents and documented large nosocomial outbreaks are especially concerning. To develop new therapeutic strategies for K. pneumoniae, it is imperative to understand the population genomic structure of strains causing human infections. To address this knowledge gap, we sequenced the genomes of 1,777 extended-spectrum beta-lactamase-producing K...
May 16, 2017: MBio
https://www.readbyqxmd.com/read/28508740/caep-2016-academic-symposium-a-writer-s-guide-to-key-steps-in-producing-quality-medical-education-scholarship
#5
Teresa M Chan, Brent Thoma, Andrew Koch Hall, Aleisha Murnaghan, Daniel K Ting, Carly Hagel, Kristen Weersink, Paola Camorlinga, Jill McEwen, Farhan Bhanji, Jonathan Sherbino
A key skill for successful clinician educators is the effective dissemination of scholarly innovations and research. Although there are many ways to disseminate scholarship, the most accepted and rewarded form of educational scholarship is publication in peer-reviewed journals. This paper provides direction for emergency medicine (EM) educators interested in publishing their scholarship via traditional peer-reviewed avenues. It builds upon four literature reviews that aggregated recommendations for writing and publishing high-quality quantitative and qualitative research, innovations, and reviews...
May 2017: CJEM
https://www.readbyqxmd.com/read/28483465/use-of-medical-expulsive-therapy-in-children-an-assessment-of-nationwide-practice-patterns-and-outcomes
#6
Jonathan S Ellison, Paul A Merguerian, Benjamin C Fu, Sarah K Holt, Thomas S Lendvay, John L Gore, Margarett Shnorhavorian
INTRODUCTION: Early data support the use of medical expulsive therapy (MET) in children. However, little is known regarding use or outcomes associated with MET outside of pediatric-specific practices. Using a national administrative dataset, we sought to characterize utilization patterns of MET as well as assess outcomes associated with MET exposure. STUDY DESIGN: We interrogated the MarketScan Commercial Claims and Encounters database to identify children under the age of 18 presenting to the emergency department (ED) with any diagnosis of upper urinary tract calculi (UUTC, including renal and ureteral calculi)...
April 20, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28482226/microbially-and-phytofabricated-agnps-with-different-mode-of-bactericidal-action-were-identified-to-have-comparable-potential-for-surface-fabrication-of-central-venous-catheters-to-combat-staphylococcus-aureus-biofilm
#7
Roshmi Thomas, Shiji Mathew, A R Nayana, Jyothis Mathews, E K Radhakrishnan
In spite of newer innovations and process improvements, catheter related infections still pose serious threat to hospitalized patients. Silver nanoparticles (AgNPs) are well demonstrated to have antibacterial properties and also have been implemented for surface fabrication of many indwelling medical devices. So, herein we sought to compare the performance of AgNPs generated through biogenic routes using bacteria and plant extract for their antibacterial and antibiofilm potential against biofilm forming Staphylococcus aureus...
April 28, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28476091/how-a-short-pore-forming-peptide-spans-the-lipid-membrane
#8
Mikkel Vestergaard, Mikkel Christensen, Sara K Hansen, Dennis Grønvall, Lisbeth R Kjølbye, Thomas Vosegaard, Birgit Schiøtt
Many antimicrobial peptides function by forming pores in the plasma membrane of the target cells. Intriguingly, some of these peptides are very short, and thus, it is not known how they can span the membrane, or whether other mechanisms of cell disruption are dominant. Here, the conformation and orientation of the 14-residue peptaibol SPF-5506-A4 (SPF) are investigated in lipid environments by atomistic and coarse grained molecular dynamics (MD) simulations, circular dichroism, and nuclear magnetic resonance (NMR) experiments...
May 5, 2017: Biointerphases
https://www.readbyqxmd.com/read/28457858/human-diseases-associated-with-connexin-mutations
#9
REVIEW
Miduturu Srinivas, Vytas K Verselis, Thomas W White
Gap junctions and hemichannels comprised of connexins impact many cellular processes. Significant advances in our understanding of the functional role of these channels have been made by the identification of a host of genetic diseases caused by connexin mutations. Prominent features of connexin disorders are the inability of other connexins expressed in the same cell type to compensate for the mutated one, and the ability of connexin mutants to dominantly influence the activity of other wild-type connexins...
April 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28446880/shifts-in-the-gut-microbiota-composition-due-to-depleted-bone-marrow-beta-adrenergic-signaling-are-associated-with-suppressed-inflammatory-transcriptional-networks-in-the-mouse-colon
#10
Tao Yang, Niousha Ahmari, Jordan T Schmidt, Ty Redler, Rebeca Arocha, Kevin Pacholec, Kacy L Magee, Wendi Malphurs, Jennifer L Owen, Gregory A Krane, Eric Li, Gary P Wang, Thomas W Vickroy, Mohan K Raizada, Christopher J Martyniuk, Jasenka Zubcevic
The brain-gut axis plays a critical role in the regulation of different diseases, many of which are characterized by sympathetic dysregulation. However, a direct link between sympathetic dysregulation and gut dysbiosis remains to be illustrated. Bone marrow (BM)-derived immune cells continuously interact with the gut microbiota to maintain homeostasis in the host. Their function is largely dependent upon the sympathetic nervous system acting via adrenergic receptors present on the BM immune cells. In this study, we utilized a novel chimera mouse that lacks the expression of BM beta1/2 adrenergic receptors (b1/2-ARs) to investigate the role of the sympathetic drive to the BM in gut and microbiota homeostasis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28445893/early-mortality-associated-with-inpatient-versus-outpatient-hemodialysis-initiation-in-a-large-cohort-of-us-veterans-with-incident-end-stage-renal-disease
#11
Faisal M Arif, Keiichi Sumida, Miklos Z Molnar, Praveen K Potukuchi, Jun Ling Lu, Fatima Hassan, Fridtjof Thomas, Omer A Siddiqui, Geeta G Gyamlani, Kamyar Kalantar-Zadeh, Csaba P Kovesdy
BACKGROUND: Mortality in the immediate post-hemodialysis transition period is extremely high. Many end-stage renal disease (ESRD) patients in the US start dialysis in an inpatient setting, but the characteristics of patients starting dialysis as inpatients, and the association of inpatient hemodialysis transition with mortality remain unclear. METHODS: We examined 48,261 US veterans who transitioned to hemodialysis between October 2007 and September 2011. Associations of inpatient hemodialysis starting with all-cause mortality were examined in Cox proportional hazard models, with adjustments for demographics, comorbidities, vascular access type, pre-dialysis nephrology care and medication use, and last pre-ESRD estimated glomerular filtration rate and hemoglobin...
April 27, 2017: Nephron
https://www.readbyqxmd.com/read/28442230/case-control-vaccine-effectiveness-studies-data-collection-analysis-and-reporting-results
#12
REVIEW
Jennifer R Verani, Abdullah H Baqui, Claire V Broome, Thomas Cherian, Cheryl Cohen, Jennifer L Farrar, Daniel R Feikin, Michelle J Groome, Rana A Hajjeh, Hope L Johnson, Shabir A Madhi, Kim Mulholland, Katherine L O'Brien, Umesh D Parashar, Manish M Patel, Laura C Rodrigues, Mathuram Santosham, J Anthony Scott, Peter G Smith, Halvor Sommerfelt, Jacqueline E Tate, J Chris Victor, Cynthia G Whitney, Anita K Zaidi, Elizabeth R Zell
The case-control methodology is frequently used to evaluate vaccine effectiveness post-licensure. The results of such studies provide important insight into the level of protection afforded by vaccines in a 'real world' context, and are commonly used to guide vaccine policy decisions. However, the potential for bias and confounding are important limitations to this method, and the results of a poorly conducted or incorrectly interpreted case-control study can mislead policies. In 2012, a group of experts met to review recent experience with case-control studies evaluating vaccine effectiveness; we summarize the recommendations of that group regarding best practices for data collection, analysis, and presentation of the results of case-control vaccine effectiveness studies...
June 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28436146/improving-zinc-accumulation-in-barley-endosperm-using-hvmtp1-a-transition-metal-transporter
#13
Paloma Menguer, Thomas Vincent, Anthony J Miller, James K M Brown, Eva Vincze, Søren Borg, Preben Bach Holm, Dale Sanders, Dorina Podar
Zinc (Zn) is essential for all life forms, including humans. It is estimated that around two billion people are deficient in their Zn intake. Human dietary Zn intake relies heavily on plants, which in many developing countries consists mainly of cereals. The inner part of cereal grain, the endosperm, is the part that is eaten after milling but contains only a quarter of the total grain Zn. Here we present results demonstrating that endosperm Zn content can be enhanced through expression of a transporter responsible for vacuolar Zn accumulation in cereals...
April 24, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28432211/recruiting-and-retaining-youth-and-young-adults-challenges-and-opportunities-in-survey-research-for-tobacco-control
#14
Jennifer Cantrell, Elizabeth C Hair, Alexandria Smith, Morgane Bennett, Jessica Miller Rath, Randall K Thomas, Mansour Fahimi, J Michael Dennis, Donna Vallone
INTRODUCTION: Evaluation studies of population-based tobacco control interventions often rely on large-scale survey data from numerous respondents across many geographic areas to provide evidence of their effectiveness. Significant challenges for survey research have emerged with the evolving communications landscape, particularly for surveying hard-to-reach populations such as youth and young adults. This study combines the comprehensive coverage of an address-based sampling (ABS) frame with the timeliness of online data collection to develop a nationally representative longitudinal cohort of young people aged 15-21...
April 21, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28416489/nrf2-induction-supporting-breast-cancer-cell-survival-is-enabled-by-oxidative-stress-induced-dpp3-keap1-interaction
#15
Kevin Lu, Allen L Alcivar, Jianglin Ma, Tzeh K Foo, Susan Zwyea, Amar Mahdi, Yanying Huo, Thomas W Kensler, Michael L Gatza, Bing Xia
NRF2 is a transcription factor serving as a master regulator of the expression of many genes involved in cellular responses to oxidative and other stresses. In the absence of stress, NRF2 is constantly synthesized but maintained at low levels as it is targeted by KEAP1 for ubiquitination and proteasome-mediated degradation. NRF2 binds KEAP1 mainly through a conserved "ETGE" motif that has also been found in several other proteins, such as DPP3, which has been shown to bind KEAP1 and enhance NRF2 function upon overexpression...
April 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28413133/vaccination-with-the-polymorphic-membrane-protein-a-reduces-chlamydia-muridarum-induced-genital-tract-pathology
#16
Tina Müller, Elisabeth Becker, Sonja Stallmann, Anna Waldhuber, Franziska Römmler-Dreher, Simone Albrecht, Fabian Mohr, Johannes H Hegemann, Thomas Miethke
Chlamydia trachomatis serovars D-K are one of the most frequent causes of sexually transmitted infections of the female genital tract, with possible complications such as hydrosalpinx, pelvic inflammatory disease, extra-uterine gravidity or infertility. We used the murine genital tract infection model with C. muridarum for vaccination studies and found that more than 70% of the infected mice suffered from uterus dilatations and/or hydrosalpinx. Systemic consequences of the vaginal infection were apparent by splenomegaly ten to fifteen days post infection...
May 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28412065/comparative-effectiveness-of-trimodal-therapy-versus-radical-cystectomy-for-localized-muscle-invasive-urothelial-carcinoma-of-the-bladder
#17
Thomas Seisen, Maxine Sun, Stuart R Lipsitz, Firas Abdollah, Jeffrey J Leow, Mani Menon, Mark A Preston, Lauren C Harshman, Adam S Kibel, Paul L Nguyen, Joaquim Bellmunt, Toni K Choueiri, Quoc-Dien Trinh
Given the lack of randomized evidence comparing trimodal therapy (TMT) to radical cystectomy (RC) for muscle-invasive urothelial carcinoma of the bladder (UCB), we performed an observational cohort study to examine the comparative effectiveness of these two definitive treatments. Within the National Cancer Data Base (2004-2011),we identified 1257 (9.8%) and 11 586 (90.2%) patients who received TMT and RC, respectively. Inverse probability of treatment weighting (IPTW)-adjusted Kaplan-Meier analysis showed that median overall survival (OS) was similar between the TMT (40 mo, 95% confidence interval [CI] 34-46) and RC groups (43 mo 95% CI 41-45; p=0...
April 12, 2017: European Urology
https://www.readbyqxmd.com/read/28405953/angioedema-in-the-emergency-department-a-practical-guide-to-differential-diagnosis-and-management
#18
REVIEW
Jonathan A Bernstein, Paolo Cremonesi, Thomas K Hoffmann, John Hollingsworth
BACKGROUND: Angioedema is a common presentation in the emergency department (ED). Airway angioedema can be fatal; therefore, prompt diagnosis and correct treatment are vital. OBJECTIVE OF THE REVIEW: Based on the findings of two expert panels attended by international experts in angioedema and emergency medicine, this review aims to provide practical guidance on the diagnosis, differentiation, and management of histamine- and bradykinin-mediated angioedema in the ED...
December 2017: International Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28404524/concise-synthesis-of-artemisinin-from-a-farnesyl-diphosphate-analogue
#19
Xiaoping Tang, Melodi Demiray, Thomas Wirth, Rudolf K Allemann
Artemisinin is one of the most potent anti-malaria drugs and many often-lengthy routes have been developed for its synthesis. Amorphadiene synthase, a key enzyme in the biosynthetic pathway of artemisinin, is able to convert an oxygenated farnesyl diphosphate analogue directly to dihydroartemisinic aldehyde, which can be converted to artemisinin in only four chemical steps, resulting in an efficient synthetic route to the anti-malaria drug.
April 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28399373/extended-ensemble-approach-to-transferable-potentials-for-low-resolution-coarse-grained-models-of-ionomers
#20
Joseph F Rudzinski, Keran Lu, Scott T Milner, Janna K Maranas, William G Noid
We develop an extended ensemble method for constructing transferable, low-resolution coarse-grained (CG) models of polyethylene-oxide (PEO)-based ionomer chains with varying composition at multiple temperatures. In particular, we consider ionomer chains consisting of 4 isophthalate groups, which may be neutral or sulfonated, that are linked by 13 PEO repeat units. The CG models represent each isophthalate group with a single CG site and also explicitly represent the diffusing sodium counterions but do not explicitly represent the PEO backbone...
May 9, 2017: Journal of Chemical Theory and Computation
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