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https://www.readbyqxmd.com/read/29678288/internalization-of-g-protein-coupled-receptors-implication-in-receptor-function-physiology-and-diseases
#1
REVIEW
Davide Calebiro, Amod Godbole
G protein-coupled receptors (GPCRs) are the largest family of membrane receptors and mediate the effects of numerous hormones and neurotransmitters. The nearly 1000 GPCRs encoded by the human genome regulate virtually all physiological functions and are implicated in the pathogenesis of prevalent human diseases such as thyroid disorders, hypertension or Parkinson's disease. As a result, 30-50% of all currently prescribed drugs are targeting these receptors. Once activated, GPCRs induce signals at the cell surface...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29678251/treating-dentin-hypersensitivity-of-noncarious-lesions-with-chemical-occlusion-physical-occlusion-and-nerve-desensitization-probably-reduces-pain-but-there-is-not-sufficient-evidence-to-determine-which-agent-is-better
#2
https://www.readbyqxmd.com/read/29676812/impact-of-pretransplant-donor-specific-antibodies-on-kidney-allograft-recipients-with-negative-flow-cytometry-crossmatches
#3
Hyunwook Kwon, Young Hoon Kim, Ji Yoon Choi, Sung Shin, Joo Hee Jung, Su-Kil Park, Duck Jong Han
The Luminex test can detect low levels of donor-specific antibody (DSA) that cannot be detected by flow-cytometric crossmatching (FCXM) in kidney transplantation (KT). This study evaluated the impact of DSA on clinical outcomes in KT recipients negative on FCXM. Of 575 consecutive patients who underwent living donor KT between January 2013 and July 2016, 494 (85.9%) were DSA-negative and 81 (14.1%) were DSA-positive. Although rates of acute cellular rejection (ACR) at 1 year were similar in the two groups (P = 0...
April 20, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29676803/outcome-of-the-risk-stratified-desensitization-protocol-in-donor-specific-antibody-positive-living-kidney-transplant-recipients-a-retrospective-study
#4
Daigo Okada, Masayoshi Okumi, Yoichi Kakuta, Kohei Unagami, Junpei Iizuka, Toshio Takagi, Hideki Ishida, Kazunari Tanabe
Acceptable outcomes of donor-specific antibody (DSA)-positive living kidney transplantation (LKT) have recently been reported. However, LKT in crossmatch (XM)-positive patients remains at high-risk and requires an optimal desensitization protocol. We report our intermediate-term outcomes of XM-positive LKT versus XM-negative LKT in patients who underwent LKT between January 2012 and June 2015 in our institution. The rate of acute antibody-mediated rejection (ABMR) within 90 days post-operation, graft function, and patient and graft survival rates at 4 years were investigated...
April 20, 2018: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/29676439/oral-and-sublingual-immunotherapy-for-egg-allergy
#5
REVIEW
Olga Romantsik, Maria Angela Tosca, Simona Zappettini, Maria Grazia Calevo
BACKGROUND: Clinical egg allergy is a common food allergy. Current management relies upon strict allergen avoidance. Oral immunotherapy might be an optional treatment, through desensitization to egg allergen. OBJECTIVES: To determine the efficacy and safety of oral and sublingual immunotherapy in children and adults with immunoglobulin E (IgE)-mediated egg allergy as compared to a placebo treatment or an avoidance strategy. SEARCH METHODS: We searched 13 databases for journal articles, conference proceedings, theses and trials registers using a combination of subject headings and text words (last search 31 March 2017)...
April 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29676151/activation-of-human-natural-killer-cells-by-graphene-oxide-templated-antibody-nanoclusters
#6
Christian Loftus, Mezida Saeed, Daniel M Davis, Iain E Dunlop
An emerging new paradigm is that immune cell activation is controlled by transient interactions between supramolecular assemblies of receptors and ligands. Current immunotherapy biologic pharmaceuticals that activate or desensitize NK cells are, however, individual molecules that do not replicate this nanoscale organization of proteins. Here, we use nanoscale graphene oxide (NGO) as a template to generate soluble nanoscale clusters of Natural Killer cell-activating antibodies. We control nanocluster size and molecular number to mimic reported values for cell surface proteins...
April 20, 2018: Nano Letters
https://www.readbyqxmd.com/read/29676066/allergen-specific-immunotherapies-for-food-allergy
#7
REVIEW
Elizabeth Feuille, Anna Nowak-Wegrzyn
With rising prevalence of food allergy (FA), allergen-specific immunotherapy (AIT) for FA has become an active area of research in recent years. In AIT, incrementally increasing doses of inciting allergen are given with the goal to increase tolerance, initially through desensitization, which relies on regular exposure to allergen. With prolonged therapy in some subjects, AIT may induce sustained unresponsiveness, in which tolerance is retained after a period of allergen avoidance. Methods of AIT currently under study in humans include oral, sublingual, epicutaneous, and subcutaneous delivery of modified allergenic protein, as well as via DNA-based vaccines encoding allergen with lysosomal-associated membrane protein I...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29675711/%C3%AE-2-adrenoceptor-signaling-reduction-is-involved-in-the-inflammatory-response-of-fibroblast-like-synoviocytes-from-adjuvant-induced-arthritic-rats
#8
Huaxun Wu, Jingyu Chen, Chun Wang, Lihua Liu, Yujing Wu, Yunfang Zhang, Aiwu Zhou, Lingling Zhang, Wei Wei
OBJECTIVE: To investigate the effects of β-AR signaling on fibroblast-like synoviocytes (FLS) from adjuvant-induced arthritis (AA) rats and the partial mechanisms focused on β-AR desensitization mediated by GRK2 and β-arrestin2. METHODS: Animals were divided into a control group and an AA model group, and FLSs were cultured. Arthritis index, histopathology of joints, epinephrine (Epi) and norepinephrine (NE) were detected in vivo. The effect of the β-AR agonist isoprenaline (ISO) and the β2 -AR agonist salbutamol on FLS cell viability were detected by CCK8...
April 19, 2018: Inflammopharmacology
https://www.readbyqxmd.com/read/29674500/novel-gpr34-and-ccr6-mutation-and-distinct-genetic-profiles-in-malt-lymphomas-of-different-sites
#9
Sarah Moody, Joe Sneath Thompson, Shih-Sung Chuang, Hongxiang Liu, Markus Raderer, George Vassiliou, Iwona Wlodarska, Fangtian Wu, Sergio Cogliatti, Alistair Robson, Margaret Ashton-Key, Yingwen Bi, John Goodlad, Ming-Qing Du
MALT lymphoma originates from a background of diverse chronic inflammatory disorders at various anatomic sites. The genetics underlying its development, particularly in those associated with autoimmune disorders, is poorly characterised. By whole exome sequencing of 21 cases of MALT lymphomas of the salivary gland and thyroid, we have identified recurrent somatic mutations in 2 G-protein coupled receptors (GPR34 and CCR6) not previously reported in human malignancies, 3 genes (PIK3CD, TET2, TNFRSF14) not previously implicated in MALT lymphoma, and a further 2 genes (TBL1XR1, NOTCH1) recently described in MALT lymphoma...
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29671582/dark-side-of-amphetamine-and-analogues-pharmacology-syndromic-manifestation-and-management-of-amphetamine-addiction
#10
Abdul Mannan Baig
The threat imposed by the use of psychoactive, illicit drugs on human health and the cost of rehabilitation of the affected individuals is nothing less than billions of dollars per year. Of the psychoactive substance abuse drugs are amphetamine and its analogues like methamphetamine. This Viewpoint intends to draw the attention of readers toward the neurological basis of "falling a prey" to methamphetamine. Attention has been paid toward a rapid desensitizing attribute that develops shortly after the repetitive use of drugs belonging to sympathomimetic agents of this group...
April 19, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29669813/monophosphorylation-of-cardiac-troponin-i-at-ser23-24-is-sufficient-to-regulate-cardiac-myofibrillar-ca-2-sensitivity-and-calpain-induced-proteolysis
#11
Abel Martin-Garrido, Brandon J Biesiadecki, Hussam E Salhi, Yasin Shaifta, Cristobal G Dos Remedios, Serife Ayuz-Guner, Wenxuan Cai, Ying Ge, Metin Avkiran, Jonathan C Kentish
The acceleration of myocardial relaxation produced by β-adrenoceptor stimulation is mediated in part by protein kinase A (PKA)-mediated phosphorylation of cardiac troponin-I (cTnI), which decreases myofibrillar Ca2+ sensitivity. Previous evidence suggests that phosphorylation of both Ser23 and Ser24 in cTnI is required for this Ca2+ desensitization. PKA-mediated phosphorylation also partially protects cTnI from proteolysis by calpain. Here we report that protein kinase D (PKD) phosphorylates only one serine of cTnI Ser23/24...
April 18, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29669664/evaluating-children-with-suspected-allergic-reactions-to-vaccines-for-infectious-diseases
#12
Fabrizio Franceschini, Paolo Bottau, Silvia Caimmi, Fabio Cardinale, Giuseppe Crisafulli, Lucia Liotti, Guido Pellegrini, Diego Peroni, Francesca Saretta, Carla Mastrorilli, Carlo Caffarelli
BACKGROUND: Vaccines often contain potentially allergenic material in addition to pathogen-specific immunogens that may induce allergic reactions. Parents and physicians often suspect that adverse reactions to vaccines are allergic in etiology. The concern that some of the substances contained in vaccines may trigger an anaphylactic reaction may lead to a low vaccination adherence with emergence of infectious disease epidemics. OBJECTIVE: To provide practical suggestions for managing children suspected to have an allergic reaction to a vaccine...
May 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29669431/-harder-and-harder-is-mainstream-pornography-becoming-increasingly-violent-and-do-viewers-prefer-violent-content
#13
Eran Shor, Kimberly Seida
It is a common notion among many scholars and pundits that the pornography industry becomes "harder and harder" with every passing year. Some have suggested that porn viewers, who are mostly men, become desensitized to "soft" pornography, and producers are happy to generate videos that are more hard core, resulting in a growing demand for and supply of violent and degrading acts against women in mainstream pornographic videos. We examined this accepted wisdom by utilizing a sample of 269 popular videos uploaded to PornHub over the past decade...
April 18, 2018: Journal of Sex Research
https://www.readbyqxmd.com/read/29669290/non-canonical-opioid-signaling-inhibits-itch-transmission-in-the-spinal-cord-of-mice
#14
Admire Munanairi, Xian-Yu Liu, Devin M Barry, Qianyi Yang, Jun-Bin Yin, Hua Jin, Hui Li, Qing-Tao Meng, Jia-Hang Peng, Zhen-Yu Wu, Jun Yin, Xuan-Yi Zhou, Li Wan, Ping Mo, Seungil Kim, Fu-Quan Huo, Joseph Jeffry, Yun-Qing Li, Rita Bardoni, Michael R Bruchas, Zhou-Feng Chen
Chronic itch or pruritus is a debilitating disorder that is refractory to conventional anti-histamine treatment. Kappa opioid receptor (KOR) agonists have been used to treat chronic itch, but the underlying mechanism remains elusive. Here, we find that KOR and gastrin-releasing peptide receptor (GRPR) overlap in the spinal cord, and KOR activation attenuated GRPR-mediated histamine-independent acute and chronic itch in mice. Notably, canonical KOR-mediated Gαi signaling is not required for desensitizing GRPR function...
April 17, 2018: Cell Reports
https://www.readbyqxmd.com/read/29665158/peanut-gastro-intestinal-delivery-oral-immunotherapy-in-adolescents-results-of-the-build-up-phase-of-a-randomized-double-blind-placebo-controlled-trial-pita-study
#15
Jean-Luc Fauquert, Elodie Michaud, Bruno Pereira, Lise Bernard, Nelly Gourdon-Dubois, Paul-Olivier Rouzaire, Emmanuelle Rochette, Etienne Merlin, Bertrand Evrard
BACKGROUND: Oral immunotherapy to peanut is effective in desensitizing patients but has significant side effects including anaphylaxis and gastro-intestinal symptoms. In most protocols peanut is administered in a vehicle food. OBJECTIVE: In an exclusively adolescent population, we tested a new approach using sealed capsules of peanut (Gastro-Intestinal Delivery Oral Immunotherapy or GIDOIT) in order to bypass the upper gastro-intestinal tract. The primary aim was to assess the efficacy of the oral build-up phase of GIDOIT and the secondary aim to analyse its safety...
April 17, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29664155/effect-of-a-filled-adhesive-as-the-desensitizer-on-bond-strength-of-self-adhesive-cements-to-differently-severity-of-fluorosed-dentin
#16
Yujie Tan, Mengqin Gu, Wangyang Li, Ling Guo
The objectives were to evaluate the efficacy of a filled adhesive named Prime & Bond NT (P&B NT) as the dentin desensitizer in occluding fluorosis dentinal tubules and compare the shear bond strength (SBS) of RelyX U200 self-adhesive resin cement (RXU) and RelyX Luting self-adhesive resin-modified glass ionomer cement (RMGIC) before and after P&B NT pretreatment. 176 non-carious fluorosis were classified into four subgroups by the Thylstrup and Fejerskov index (TFI): normal group (TFI = 0), mild group (TFI = 1-3), moderate group (TFI = 4-5), severe group (TFI = 6-9)...
April 17, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29664021/a-tlr-akt-foxo3-immune-tolerance-like-pathway-disrupts-the-repair-capacity-of-oligodendrocyte-progenitors
#17
Taasin Srivastava, Parham Diba, Justin M Dean, Fatima Banine, Daniel Shaver, Matthew Hagen, Xi Gong, Weiping Su, Ben Emery, Daniel L Marks, Edward N Harris, Bruce Baggenstoss, Paul H Weigel, Larry S Sherman, Stephen A Back
Cerebral white matter injury (WMI) persistently disrupts myelin regeneration by oligodendrocyte progenitor cells (OPCs). We identified a specific bioactive hyaluronan fragment (bHAf) that downregulates myelin gene expression and chronically blocks OPC maturation and myelination via a tolerance-like mechanism that dysregulates pro-myelination signaling via AKT. Desensitization of AKT occurs via TLR4 but not TLR2 or CD44. OPC differentiation was selectively blocked by bHAf in a maturation-dependent fashion at the late OPC (preOL) stage by a noncanonical TLR4/TRIF pathway that induced persistent activation of the FoxO3 transcription factor downstream of AKT...
April 16, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29662865/successful-rapid-drug-desensitization-to-methotrexate-in-a-patient-with-primary-central-nervous-system-lymphoma
#18
Kyung Mee Song, Junghwan Lee, Ji Hyun Park, So-Young Park, Tae-Bum Kim, Cheolwon Suh
No abstract text is available yet for this article.
March 2018: Blood Research
https://www.readbyqxmd.com/read/29659106/individual-treatment-selection-for-patients-with-posttraumatic-stress-disorder
#19
Anne-Katharina Deisenhofer, Jaime Delgadillo, Julian A Rubel, Jan R Böhnke, Dirk Zimmermann, Brian Schwartz, Wolfgang Lutz
BACKGROUND: Trauma-focused cognitive behavioral therapy (Tf-CBT) and eye movement desensitization and reprocessing (EMDR) are two highly effective treatment options for posttraumatic stress disorder (PTSD). Yet, on an individual level, PTSD patients vary substantially in treatment response. The aim of the paper is to test the application of a treatment selection method based on a personalized advantage index (PAI). METHOD: The study used clinical data for patients accessing treatment for PTSD in a primary care mental health service in the north of England...
April 16, 2018: Depression and Anxiety
https://www.readbyqxmd.com/read/29656306/oral-and-sublingual-immunotherapy-for-treatment-of-ige-mediated-food-allergy
#20
REVIEW
Amy M Scurlock
Development of active therapies for IgE-mediated food allergy is a critical action step toward alleviating the adverse medical, psychosocial, and economic burdens on affected patients and families. Significant progress has been observed specifically in the application of single-allergen oral and sublingual immunotherapy for treatment of IgE-mediated food allergy, with emphasis on milk, egg, and peanut as the primary allergens. Oral immunotherapy (OIT) has demonstrated efficacy in promoting immunomodulatory effects that lead to the clinical outcome of desensitization, defined as reduced reactivity while on active OIT, in the majority of treated individuals; however, achievement of sustained unresponsiveness following cessation of therapy has been observed in a smaller subset of treated subjects...
April 14, 2018: Clinical Reviews in Allergy & Immunology
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