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https://www.readbyqxmd.com/read/28324604/imaging-the-dynamics-of-cell-wall-polymer-deposition-in-the-unicellular-model-plant-penium-margaritaceum
#1
David Domozych, Anna Lietz, Molly Patten, Emily Singer, Berke Tinaz, Sandra C Raimundo
The unicellular green alga, Penium margaritaceum, represents a novel and valuable model organism for elucidating cell wall dynamics in plants. This organism's cell wall contains several polymers that are highly similar to those found in the primary cell walls of land plants. Penium is easily grown in laboratory culture and is effectively manipulated in various experimental protocols including microplate assays and correlative microscopy. Most importantly, Penium can be live labeled with cell wall-specific antibodies or other probes and returned to culture where specific cell wall developmental events can be monitored...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28320167/caffeine-creatine-grin2a-and-parkinson-s-disease-progression
#2
David K Simon, Cai Wu, Barbara C Tilley, Katja Lohmann, Christine Klein, Haydeh Payami, Anne-Marie Wills, Michael J Aminoff, Jacquelyn Bainbridge, Richard Dewey, Robert A Hauser, Susen Schaake, Jay S Schneider, Saloni Sharma, Carlos Singer, Caroline M Tanner, Daniel Truong, Peng Wei, Pei Shieen Wong, Tianzhong Yang
Caffeine is neuroprotective in animal models of Parkinson's disease (PD) and caffeine intake is inversely associated with the risk of PD. This association may be influenced by the genotype of GRIN2A, which encodes an NMDA-glutamate-receptor subunit. In two placebo-controlled studies, we detected no association of caffeine intake with the rate of clinical progression of PD, except among subjects taking creatine, for whom higher caffeine intake was associated with more rapid progression. We now have analyzed data from 420 subjects for whom DNA samples and caffeine intake data were available from a placebo-controlled study of creatine in PD...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28317509/using-claims-data-to-examine-hospital-readmission-risk-in-patients-with-schizophrenia-and-comorbid-marijuana-use-disorders
#3
Mary E Slaughter, Coreen Farris, Mark I Singer, Kathleen A Smyth, Mendel E Singer
OBJECTIVE: Few epidemiologic studies have examined marijuana use disorder and repeated hospitalizations related to schizophrenia. To address this gap, this study examines time to readmission by indicators for recent marijuana use disorder in the presence of alcohol use disorder (AUD) and other drug use disorder. METHOD: Our sample consisted of 4,349 patients with a primary diagnosis of schizophrenia spectrum disorder (SSD) in 2005 in individually linked California Health Care Cost and Utilization Project (CA HCUP) data...
March 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28317215/practice-requirements-for-psychotherapeutic-treatment-of-cancer-patients-in-the-outpatient-setting-a-survey-among-certified-psychotherapists-in-germany
#4
Susanne Singer, Erika Kojima, Jutta Beckerle, Bernhard Kleining, Erhard Schneider, Katrin Reuter
PURPOSE: The aim of this study was to delineate the challenges psychotherapists encounter when they treat cancer patients and how they organise their practices to be able to treat them. METHODS: A random sample of certified psychotherapists, licensed by the health authorities, with training in psycho-oncology, was asked to complete a questionnaire covering the following issues: therapists' qualifications, organisation of the practice, dealing with appointment cancellations, financing, and networking...
March 20, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28314658/management-of-chronic-inducible-urticaria-according-to-the-guidelines-a-prospective-controlled-study
#5
Emek Kocatürk, Pelin Kuteyla Can, Pırıl Etikan Akbas, Mehmet Copur, Ece Nur Degirmentepe, Kübra Kızıltac, Ralfi Singer
BACKGROUND: The recommended treatment approach in chronic inducible urticarias (CIndU) is the same as that for chronic spontaneous urticaria (CSU). But there is a lack of controlled trials assessing efficacy of available treatment options. OBJECTIVE: We aimed to evaluate the efficacy of treatment algorithm recommended by the guidelines and comparison of treatment responses in CIndU vs CSU. METHODS: This prospective parallel group controlled study included 70 CIndU and 66 CSU patients...
March 1, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28306595/update-on-maintenance-therapy-for-granulomatosis-with-polyangiitis-and-microscopic-polyangiitis
#6
Ora Singer, W Joseph McCune
PURPOSE OF REVIEW: The antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitides are a group of rare systemic diseases. The past several years have seen major therapeutic advances in the treatment of granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA). The success rate in induction of remission is high, but reducing the high incidence of relapses remains a therapeutic challenge. RECENT FINDINGS: Studies have shown no improvement in relapse rates in GPA and MPA over the past 2 decades...
March 16, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28302673/pneumococcal-vaccine-response-after-exposure-to-parasites-in-utero-in-infancy-or-mid-childhood
#7
Monica Nayakwadi Singer, Claire Heath, Jackson Muinde, Virginia Gildengorin, Francis M Mutuku, David Vu, Dunstan Mukoko, Christopher L King, Indu J Malhotra, Charles H King, A Desirée LaBeaud
BACKGROUND AND OBJECTIVE: Streptococcus pneumoniae is a leading cause of mortality before age 5, but few studies examine details of childhood response to pneumococcal vaccine in less-developed settings. Although malnutrition, HIV, and concurrent infections can impair response, evidence suggests that chronic parasitic infections can also contribute to poor vaccination results. The objective of this study was to determine whether response to pneumococcal vaccine varied among children either exposed to parasitic infections in utero, previously infected in infancy, or infected at the time of immunization...
March 16, 2017: Pediatrics
https://www.readbyqxmd.com/read/28301697/managing-opioid-withdrawal-for-hospital-patients-in-custody
#8
Connie R Shi, Manjinder S Kandola, Matthew Tobey, Elizabeth Singer
Dr. Brown, a hospitalist, admits Mark, a patient transferred from a local jail for management of cellulitis. The patient, who was taken into custody two days prior to hospital admission, has a history of intravenous heroin use. Mark explains that he had been prescribed buprenorphine-naloxone maintenance therapy for opioid use disorder for several years prior to being arrested and had not used other opioids during that time. As a policy, the jail where Mark is detained does not prescribe opioid agonists, and his maintenance therapy was stopped upon his arrival there...
March 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28296810/activation-associated-accelerated-apoptosis-of-memory-b-cells-in-critically-ill-patients-with-sepsis
#9
Manu Shankar-Hari, David Fear, Paul Lavender, Tracey Mare, Richard Beale, Chad Swanson, Mervyn Singer, Jo Spencer
OBJECTIVE: Sepsis is life-threatening organ dysfunction due to dysregulated host responses to infection. Current knowledge of human B-cell alterations in sepsis is sparse. We tested the hypothesis that B-cell loss in sepsis involves distinct subpopulations of B cells and investigated mechanisms of B-cell depletion. DESIGN: Prospective cohort study. SETTING: Critical care units. PATIENTS: Adult sepsis patients without any documented immune comorbidity...
March 14, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28295562/locked-nucleic-acid-lna-based-single-stranded-oligonucleotides-are-not-genotoxic
#10
Guérard Melanie, Zeller Andreas, Koller Erich, Marchand Christine, Müller B Martina, Weile Christian, Schuler Franz, Singer Thomas, Tessier Yann
Over the last decade, single stranded oligonucleotides (ON) have gained increased attention as a new drug modality. Because the assessment of genotoxicity risk during early development of pharmaceuticals is essential, we evaluated the potential of locked nucleic acids (LNA)-ONs to induce DNA damage in L5178Y tk(+/-) cells both with the mouse lymphoma assay (MLA) and the micronucleus test (MNT). Further, the MLA was performed to assess gene and chromosome mutation over 3 and 24h (± metabolic activation). In addition, the MNT was performed to assess, in addition, a potential aneugenic liability...
March 10, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28293165/-pyr-1-apelin-13-1-12-is-a-biologically-active-ace2-metabolite-of-the-endogenous-cardiovascular-peptide-pyr-1-apelin-13
#11
Peiran Yang, Rhoda E Kuc, Aimée L Brame, Alex Dyson, Mervyn Singer, Robert C Glen, Joseph Cheriyan, Ian B Wilkinson, Anthony P Davenport, Janet J Maguire
Aims: Apelin is a predicted substrate for ACE2, a novel therapeutic target. Our aim was to demonstrate the endogenous presence of the putative ACE2 product [Pyr(1)]apelin-13(1-12) in human cardiovascular tissues and to confirm it retains significant biological activity for the apelin receptor in vitro and in vivo. The minimum active apelin fragment was also investigated. Methods and Results: [Pyr(1)]apelin-13 incubated with recombinant human ACE2 resulted in de novo generation of [Pyr(1)]apelin-13(1-12) identified by mass spectrometry...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28292985/binding-of-candida-albicans-to-human-ceacam1-and-ceacam6-modulates-the-inflammatory-response-of-intestinal-epithelial-cells
#12
Esther Klaile, Mario M Müller, Miriam R Schäfer, Ann-Katrin Clauder, Sabina Feer, Kerstin A Heyl, Magdalena Stock, Tilman E Klassert, Peter F Zipfel, Bernhard B Singer, Hortense Slevogt
Candida albicans colonizes human mucosa, including the gastrointestinal tract, as a commensal. In immunocompromised patients, C. albicans can breach the intestinal epithelial barrier and cause fatal invasive infections. Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1; CD66a), CEACAM5 (CEA), and CEACAM6 (CD66c) are immunomodulatory receptors expressed on human mucosa and are recruited by bacterial and viral pathogens. Here we show for the first time that a fungal pathogen (i.e., C. albicans) also binds directly to the extracellular domain of human CEACAM1, CEACAM3, CEACAM5, and CEACAM6...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28290965/sickle-cell-trait-prevalence-among-u-s-military-service-members-1992-2012
#13
David W Niebuhr, Ligong Chen, Stephanie Shao, Jonathan Goldsmith, Celia Byrne, Darrell E Singer
BACKGROUND: Population-based estimates of sickle cell trait (SCT) prevalence in the U.S. military across services and over time are lacking. METHODS: SCT prevalence by service, race/ethnicity, and gender in 5-year time intervals was estimated using demographic, ambulatory, and hospital SCT encounter (International Classification of Diseases, 9th Revision, Clinical Modification 282.5) data for active duty, enlisted between 1992 and 2012 and limited SCT laboratory results...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28288515/measures-of-physical-and-mental-independence-among-hiv-positive-individuals-impact-of-substance-use-disorder
#14
Bianca Christensen, Zijian Qin, Desiree A Byrd, Fang Yu, Susan Morgello, Benjamin B Gelman, David J Moore, Igor Grant, Elyse J Singer, Howard Fox, Lorena Baccaglini
INTRODUCTION: With the transition of HIV infection from an acute to a chronic disease following the introduction of antiretroviral medications, there has been an increased focus on long-term neurocognitive and other functional outcomes of HIV patients. Thus, we assessed factors, particularly history of a substance use disorder, associated with time-to-loss of measures of physical or mental independence among HIV positive individuals. METHODS: Data were obtained from the National NeuroAIDS Tissue Consortium (NNTC)...
March 13, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28288075/an-electronic-health-record-based-intervention-to-promote-hepatitis-c-virus-testing-among-adults-born-between-1945-and-1965-a-cluster-randomized-trial
#15
Alex D Federman, Natalie Kil, Joseph Kannry, Evie Andreopolous, Wilma Toribio, Joanne Lyons, Mark Singer, Anthony Yartel, Bryce D Smith, David B Rein, Katherine Krauskopf
BACKGROUND: The Centers for Disease Control and Prevention (CDC) recommends one-time hepatitis C virus (HCV) antibody testing for "Birth Cohort" adults born during 1945-1965. OBJECTIVE: To examine the impact of an electronic health record (EHR)-embedded best practice alert (BPA) for HCV testing among Birth Cohort adults. DESIGN: Cluster-randomized trial was conducted from April 29, 2013 to March 29, 2014. SUBJECTS AND SETTING: Ten community and hospital-based primary care practices...
March 10, 2017: Medical Care
https://www.readbyqxmd.com/read/28286574/nontargeted-homologue-series-extraction-from-hyphenated-high-resolution-mass-spectrometry-data
#16
Martin Loos, Heinz Singer
BACKGROUND: A large proportion of polar anthropogenic compounds routinely released into the environment comprises homologue series, i.e., sets of chemicals differing in a repeating chemical unit. Using analytical techniques such as liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS), these compounds are readily measurable as signal sets with characteristic differences in mass and typically retention time. However, and despite such distinct characteristics, no computational approach for the direct, simultaneous and untargeted detection of all such signal sets comprising both LC and HRMS information has to date been presented...
2017: Journal of Cheminformatics
https://www.readbyqxmd.com/read/28285721/corrigendum-to-is-meditation-always-relaxing-investigating-heart-rate-heart-rate-variability-experienced-effort-and-likeability-during-training-of-three-types-of-meditation-int-j-psychophysiol-97-1-2015-38-45
#17
Anna-Lena Lumma, Bethany E Kok, Tania Singer
No abstract text is available yet for this article.
March 9, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28282570/paradoxical-vocal-changes-in-a-trained-singer-by-focally-cooling-the-right-superior-temporal-gyrus
#18
Kalman A Katlowitz, Hiroyuki Oya, Matthew A Howard, Jeremy D W Greenlee, Michael A Long
The production and perception of music is preferentially mediated by cortical areas within the right hemisphere, but little is known about how these brain regions individually contribute to this process. In an experienced singer undergoing awake craniotomy, we demonstrated that direct electrical stimulation to a portion of the right posterior superior temporal gyrus (pSTG) selectively interrupted singing but not speaking. We then focally cooled this region to modulate its activity during vocalization. In contrast to similar manipulations in left hemisphere speech production regions, pSTG cooling did not elicit any changes in vocal timing or quality...
February 20, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28280479/parasocial-interactions-and-relationships-in-early-adolescence
#19
Tracy R Gleason, Sally A Theran, Emily M Newberg
Parasocial interactions and relationships, one-sided connections imagined with celebrities and media figures, are common in adolescence and might play a role in adolescent identity formation and autonomy development. We asked 151 early adolescents (Mage = 14.8 years) to identify a famous individual of whom they are fond; we examined the type of celebrities chosen and why they admired them, and the relationships imagined with these figures across the entire sample and by gender. Adolescents emphasized highly salient media figures, such as actors, for parasocial attention...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28280036/myeloid-derived-cullin-3-promotes-stat3-phosphorylation-by-inhibiting-ogt-expression-and-protects-against-intestinal-inflammation
#20
Xinghui Li, Zhibin Zhang, Lupeng Li, Wei Gong, Audrey J Lazenby, Benjamin J Swanson, Laura E Herring, John M Asara, Jeffrey D Singer, Haitao Wen
Signal transducer and activator of transcription 3 (STAT3) is a key mediator of intestinal inflammation and tumorigenesis. However, the molecular mechanism that modulates STAT3 phosphorylation and activation is not fully understood. Here, we demonstrate that modification of STAT3 with O-linked β-N-acetylglucosamine (O-GlcNAc) on threonine 717 (T717) negatively regulates its phosphorylation and targets gene expression in macrophages. We further found that cullin 3 (CUL3), a cullin family E3 ubiquitin ligase, down-regulates the expression of the O-GlcNAc transferase (OGT) and inhibits STAT3 O-GlcNAcylation...
March 9, 2017: Journal of Experimental Medicine
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