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https://www.readbyqxmd.com/read/28346464/sympathetic-nervous-system-activity-and-anti-lipolytic-response-to-iv-glucose-load-in-subcutaneous-adipose-tissue-of-obese-and-obese-type-2-diabetic-subjects
#1
Uwe Schumann, Christopher P Jenkinson, Andreas Alt, Martina Zügel, Jürgen M Steinacker, Marion Flechtner-Mors
The study aim was to investigate the effect of endogenous insulin release on lipolysis in subcutaneous adipose tissue after adrenergic stimulation in obese subjects diagnosed with type 2 diabetes (T2D). In 14 obese female T2D subjects, or 14 obese non-T2D controls, glycerol concentration was measured in response to the α1,2,ß-agonist norepinephrine, the α1-agonist norfenefrine and the ß2-agonist terbutaline (each 10-4 M), using the microdialysis technique. After 60 minutes of stimulation, an intravenous glucose load (0...
2017: PloS One
https://www.readbyqxmd.com/read/28345211/3d-echocardiographic-analysis-of-aortic-annulus-for-transcatheter-aortic-valve-replacement-using-novel-aortic-valve-quantification-software-comparison-with-computed-tomography
#2
Anuj Mediratta, Karima Addetia, Diego Medvedofsky, Robert J Schneider, Eric Kruse, Atman P Shah, Sandeep Nathan, Jonathan D Paul, John E Blair, Takeyoshi Ota, Husam H Balkhy, Amit R Patel, Victor Mor-Avi, Roberto M Lang
BACKGROUND: With the increasing use of transcatheter aortic valve replacement (TAVR) in patients with aortic stenosis (AS), computed tomography (CT) remains the standard for annulus sizing. However, 3D transesophageal echocardiography (TEE) has been an alternative in patients with contraindications to CT. We sought to (1) test the feasibility, accuracy, and reproducibility of prototype 3DTEE analysis software (Philips) for aortic annular measurements and (2) compare the new approach to the existing echocardiographic techniques...
March 27, 2017: Echocardiography
https://www.readbyqxmd.com/read/28344080/translation-of-circrnas
#3
Nagarjuna Reddy Pamudurti, Osnat Bartok, Marvin Jens, Reut Ashwal-Fluss, Christin Stottmeister, Larissa Ruhe, Mor Hanan, Emanuel Wyler, Daniel Perez-Hernandez, Evelyn Ramberger, Shlomo Shenzis, Moshe Samson, Gunnar Dittmar, Markus Landthaler, Marina Chekulaeva, Nikolaus Rajewsky, Sebastian Kadener
Circular RNAs (circRNAs) are abundant and evolutionarily conserved RNAs of largely unknown function. Here, we show that a subset of circRNAs is translated in vivo. By performing ribosome footprinting from fly heads, we demonstrate that a group of circRNAs is associated with translating ribosomes. Many of these ribo-circRNAs use the start codon of the hosting mRNA, are bound by membrane-associated ribosomes, and have evolutionarily conserved termination codons. In addition, we found that a circRNA generated from the muscleblind locus encodes a protein, which we detected in fly head extracts by mass spectrometry...
March 15, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28344044/impairments-of-motor-function-among-children-with-a-familial-risk-of-schizophrenia-or-bipolar-disorder-at-7-years-old-in-denmark-an-observational-cohort-study
#4
Birgitte Klee Burton, Anne A E Thorup, Jens Richardt Jepsen, Gry Poulsen, Ditte Ellersgaard, Katrine S Spang, Camilla Jerlang Christiani, Nicoline Hemager, Ditte Gantriis, Aja Greve, Ole Mors, Merete Nordentoft, Kerstin Jessica Plessen
BACKGROUND: Owing to the genetic overlap between schizophrenia and bipolar disorder, we aimed to assess domain-specific motor aberrations and disorder specificity among 7-year-old children with a familial risk of schizophrenia or bipolar disorder by comparing children in familial risk groups with each other and with children not in these risk groups. METHODS: In the Danish High Risk and Resilience Study, we established a cohort of 7-year-old children with no, one, or two parents with schizophrenia or bipolar disorder in Denmark between Jan 1, 2013, and Jan 31, 2016...
March 23, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28342067/the-incidence-of-post-transplant-cancer-among-kidney-transplant-recipients-is-associated-with-the-level-of-tacrolimus-exposure-during-the-first-year-after-transplantation
#5
Shelly Lichtenberg, Ruth Rahamimov, Hefziba Green, Benjamin D Fox, Eytan Mor, Uzi Gafter, Avry Chagnac, Benaya Rozen-Zvi
PURPOSE: Immunosuppressive therapy plays a major role in the development of post-transplant cancer. In this nested case-control study of kidney transplant recipients (KTRs), we investigated whether the incidence of post-transplant cancer is associated with the level of tacrolimus exposure over time. METHODS: We screened the Rabin Medical Center database for adults who received kidney transplants between 2001 and 2014 and developed post-transplant cancer (excluding basal and squamous cell skin cancers)...
March 24, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28341892/aquaporin-4-forms-a-macromolecular-complex-with-glutamate-transporter-1-and-mu-opioid-receptor-in-astrocytes-and-participates-in-morphine-dependence
#6
Hui Wang, Shiqi Wang, Kang Zhang, Hua Wang, Liting Lan, Xiaoyun Ma, Xiaoyan Liu, Shuzhuo Zhang, Jianquan Zheng, Xiaoli Wei, Haitao Yan
The water channel aquaporin 4 (AQP4) is abundantly expressed in astrocytes and provides a mechanism by which water permeability of the plasma membrane can be regulated. Evidence suggests that AQP4 is associated with glutamate transporter-1 (GLT-1) for glutamate clearance and contributes to morphine dependence. Previous studies show that AQP4 deficiency changed the mu opioid receptor expression and opioid receptors' characteristics as well. In this study, we focused on whether AQP4 could form macromolecular complex with GLT-1 and mu opioid receptor (MOR) and participates in morphine dependence...
March 24, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28341151/mice-heterozygous-for-an-inactivated-allele-of-the-schizophrenia-associated-brd1-gene-display-selective-cognitive-deficits-with-translational-relevance-to-schizophrenia
#7
Per Qvist, Anto P Rajkumar, John P Redrobe, Mette Nyegaard, Jane H Christensen, Ole Mors, Gregers Wegener, Michael Didriksen, Anders D Børglum
Schizophrenia is a debilitating brain disorder characterized by disturbances of emotion, perception and cognition. Cognitive impairments predict functional outcome in schizophrenia and are detectable even in the prodromal stage of the disorder. However, our understanding of the underlying neurobiology is limited and procognitive treatments remain elusive. We recently demonstrated that mice heterozygous for an inactivated allele of the schizophrenia-associated Brd1 gene (Brd1(+/-) mice) display behaviors reminiscent of schizophrenia, including impaired social cognition and long-term memory...
March 21, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28338404/effect-of-histone-deacetylase-inhibitor-butyroyloxymethyl-diethyl-phosphate-an-7-on-corneal-neovascularization-in-a-mouse-model
#8
Michal Schaap-Fogler, Irit Bahar, Ada Rephaeli, Mor Dahbash, Abraham Nudelman, Eitan Livny, Tilda Barliya, Yael Nisgav, Tami Livnat
PURPOSE: To examine whether butyroyloxymethyl-diethyl phosphate (AN-7), a histone deacetylase inhibitor, inhibits chemically induced corneal neovascularization (NV) in mice. METHODS: Corneal NV was induced in the right eye of male C57BL mice by application of a mixture of 75% silver nitrate and 25% potassium nitrate to the corneal center. Immediately thereafter, the mice were randomized into 2 groups, receiving an intraperitoneal injection of AN-7 or saline, which served as control...
March 24, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28338215/delirium-during-postacute-nursing-home-admission-and-risk-for-adverse-outcomes
#9
Cyrus M Kosar, Kali S Thomas, Sharon K Inouye, Vincent Mor
OBJECTIVES: To identify the rate of delirium present during admission to postacute care (PAC) in the nursing home setting and to determine whether patients with delirium had higher risk for adverse outcomes. DESIGN: Retrospective cohort study. SETTING: US Medicare- and Medicaid-certified nursing homes, 2011 to 2014. PARTICIPANTS: Individuals admitted to all US nursing homes for PAC, aged ≥65 years, and without prior history of nursing home residence (n = 5,588,702)...
March 24, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28335028/defining-the-5%C3%AE-and-3%C3%AE-landscape-of-the-drosophila-transcriptome-with-exo-seq-and-rnaseh-seq
#10
Shaked Afik, Osnat Bartok, Maxim N Artyomov, Alexander A Shishkin, Sabah Kadri, Mor Hanan, Xiaopeng Zhu, Manuel Garber, Sebastian Kadener
Cells regulate biological responses in part through changes in transcription start sites (TSS) or cleavage and polyadenylation sites (PAS). To fully understand gene regulatory networks, it is therefore critical to accurately annotate cell type-specific TSS and PAS. Here we present a simple and straightforward approach for genome-wide annotation of 5΄- and 3΄-RNA ends. Our approach reliably discerns bona fide PAS from false PAS that arise due to internal poly(A) tracts, a common problem with current PAS annotation methods...
February 22, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28332577/absence-of-role-of-dietary-protein-sensing-in-the-metabolic-benefits-of-duodenal-jejunal-bypass-in-the-mouse
#11
Aude Barataud, Daisy Goncalves, Jennifer Vinera, Carine Zitoun, Adeline Duchampt, Amandine Gautier-Stein, Gilles Mithieux
Roux-en-Y gastric bypass (RYGB) induces remission or substantial improvement of type 2 diabetes mellitus (T2D) but underlying mechanisms are still unclear. The beneficial effects of dietary proteins on energy and glucose homeostasis are mediated by the antagonist effects of peptides toward mu-opioid receptors (MORs), which are highly expressed in the distal gut. We hypothesized that the beneficial effects of RYGB could depend at least in part on the interaction of peptides from food with intestinal MORs. Duodenal-jejunal bypass (DJB) was performed in obese and lean wild-type (WT) or MOR deficient (MOR(-/-)) mice...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330904/autonomous-tnf-is-critical-for-in-vivo-monocyte-survival-in-steady-state-and-inflammation
#12
Yochai Wolf, Anat Shemer, Michal Polonsky, Mor Gross, Alexander Mildner, Simon Yona, Eyal David, Ki-Wook Kim, Tobias Goldmann, Ido Amit, Mathias Heikenwalder, Sergei Nedospasov, Marco Prinz, Nir Friedman, Steffen Jung
Monocytes are circulating mononuclear phagocytes, poised to extravasate to sites of inflammation and differentiate into monocyte-derived macrophages and dendritic cells. Tumor necrosis factor (TNF) and its receptors are up-regulated during monopoiesis and expressed by circulating monocytes, as well as effector monocytes infiltrating certain sites of inflammation, such as the spinal cord, during experimental autoimmune encephalomyelitis (EAE). In this study, using competitive in vitro and in vivo assays, we show that monocytes deficient for TNF or TNF receptors are outcompeted by their wild-type counterpart...
March 22, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28330798/knee-osteoarthritis-degenerative-meniscal-lesion-and-osteonecrosis-of-the-knee-can-a-simple-gait-test-direct-us-to-a-better-clinical-diagnosis
#13
Ronen Debi, Avi Elbaz, Amit Mor, Gadi Kahn, Bezalel Peskin, Yiftah Beer, Gabriel Agar, Guy Morag, Ganit Segal
INTRODUCTION: The purpose of the current study was to compare the gait patterns in patients with three differing knee pathologies - knee osteoarthritis (OA), degenerative meniscal lesion (DML) and spontaneous osteonecrosis of the knee (SONK) and a group of healthy controls. HYPOTHESIS: A simple gait test will detect differences between different knee pathologies. MATERIAL AND METHODS: Forty-seven patients with bilateral knee OA, 47 patients with DML, 28 patients with SONK and 27 healthy controls were included in this analysis...
March 19, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28329302/sensitization-of-gram-negative-bacilli-to-host-antibacterial-proteins
#14
Joanna Jammal, Fadia Zaknoon, Galoz Kaneti, Ayelet S Hershkovits, Amram Mor
Towards addressing the need for novel alternatives to antibiotics, we attempted to sensitize Gram-negative bacilli (GNB) to innate antibacterial protagonists. We report a lipopeptide-like sequence (C10OOc12O) that inflicted outer-membrane damages at low micromolar range, whereas measurable bacterial growth inhibition in broth medium required >10-fold higher concentrations. In serum however, C10OOc12O induced antibacterial activity in a manner suppressible by anti-complements antibodies or heat treatment, and acted synergistically with exogenous lysozyme in broth and serum media...
March 4, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28328199/fentanyl-initiated-polymers-prepared-by-atrp-for-targeted-delivery
#15
Devora Cohen-Karni, Marina Kovaliov, Shaohua Li, Stephen Jaffee, Nestor D Tomycz, Saadyah Averick
The targeted delivery of polymers to neurons is a challenging yet important goal for polymer based drug delivery. We prepared a fentanyl based atom transfer radical polymerization (ATRP) initiator to target the Mu opioid receptor (MOR) for neuronal targeting. We incorporated our recently discovered rigid acrylate linking group into the initiator to retain a high degree of binding to the MOR and grafted random or block copolymers of poly(oligo(ethylene oxide) methacrylate)-block-(glycidyl methacrylate). Trifluoroethanol promoted amine ring opening of the glycidyl methacrylate was used for post-polymerization modification of the fentanyl initiated polymers to attach a near-infrared fluorescent dye (ADS790WS) or to build a targeted siRNA delivery system via modification with secondary amines...
March 22, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28327612/endogenous-opioids-regulate-moment-to-moment-neuronal-communication-and-excitability
#16
Bryony L Winters, Gabrielle C Gregoriou, Sarah A Kissiwaa, Oliver A Wells, Danashi I Medagoda, Sam M Hermes, Neil T Burford, Andrew Alt, Sue A Aicher, Elena E Bagley
Fear and emotional learning are modulated by endogenous opioids but the cellular basis for this is unknown. The intercalated cells (ITCs) gate amygdala output and thus regulate the fear response. Here we find endogenous opioids are released by synaptic stimulation to act via two distinct mechanisms within the main ITC cluster. Endogenously released opioids inhibit glutamate release through the δ-opioid receptor (DOR), an effect potentiated by a DOR-positive allosteric modulator. Postsynaptically, the opioids activate a potassium conductance through the μ-opioid receptor (MOR), suggesting for the first time that endogenously released opioids directly regulate neuronal excitability...
March 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28322769/racial-and-ethnic-disparities-in-contraceptive-knowledge-among-women-veterans-in-the-ecuun-study
#17
Elian Rosenfeld, Lisa S Callegari, Florentina E Sileanu, Xinhua Zhao, E Bimla Schwarz, Maria K Mor, Sonya Borrero
OBJECTIVE: To assess whether racial/ethnic disparities in contraceptive knowledge observed in the general US population are also seen among women Veterans served by the Veterans Affairs (VA) healthcare system. STUDY DESIGN: We analyzed data from a national telephone survey of 2302 women Veterans aged 18-44 who had received care within VA in the prior 12months. Twenty survey items assessed women's knowledge about various contraceptive methods. Multivariable logistic regression was used to examine racial/ethnic variation in contraceptive knowledge items, adjusting for age, marital status, education, income, parity, and branch of military service...
March 17, 2017: Contraception
https://www.readbyqxmd.com/read/28319052/a-tail-of-opioid-receptor-variants
#18
Stephanie Puig, Howard B Gutstein
Opioids are the gold-standard treatment for severe pain. However, potentially life-threatening side effects decrease the safety and effectiveness of these compounds. The addiction liability of these drugs has led to the current epidemic of opioid abuse in the US. Extensive research efforts have focused on trying to dissociate the analgesic properties of opioids from their undesirable side effects. Splice variants of the mu opioid receptor (MOR), which mediates opioid actions, have unique pharmacological properties and anatomic distributions that make them attractive candidates for therapeutic pain relief...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28318968/improved-glottic-exposure-for-robotic-microlaryngeal-surgery-a-case-series
#19
Dehra A McGuire, Jennifer P Rodney, Nilesh R Vasan
Robotic surgery has become the standard of care for many procedures outside of otolaryngology and now is gaining momentum within our specialty. The da Vinci (Intuitive Surgical, Sunnyvale, CA) robot has several advantages to human hands, including removal of tremor and better access to lesions because of increased degree of movement of the articulated instruments. The glottis has rarely been addressed using robotic surgery because access was previously thought to be difficult because of the limitations of currently used retractors, which include poor base of tongue and oral commissure retraction resulting in lack of exposure of the glottis in many patients and lack of space for the robotic instruments to occupy...
March 17, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28306605/hyperalgesic-priming-type-ii-induced-by-repeated-opioid-exposure-maintenance-mechanisms
#20
Dioneia Araldi, Luiz F Ferrari, Jon D Levine
We previously developed a model of opioid-induced neuroplasticity in the peripheral terminal of the nociceptor that could contribute to opioid-induced hyperalgesia, type II hyperalgesic priming. Repeated administration of mu-opioid receptor (MOR) agonists, such as DAMGO, at the peripheral terminal of the nociceptor, induces long-lasting plasticity expressed, prototypically as opioid-induced hyperalgesia and prolongation of prostaglandin-E2-induced hyperalgesia. In this study, we evaluated the mechanisms involved in the maintenance of type II priming...
March 14, 2017: Pain
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