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beta2 adrenergic receptor

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https://www.readbyqxmd.com/read/29556870/parental-depressive-symptoms-potentiate-the-effect-of-youth-negative-mood-symptoms-on-gene-expression-in-children-with-asthma
#1
Erika M Manczak, Bryn Dougherty, Edith Chen
Depressive symptoms in parents and in youths have been found to relate to disease comorbidity processes in children, including greater disease-related impairment and poorer clinical outcomes. The current study sought to assess whether coming from a family characterized by more depressive symptoms on average would potentiate the effects of changes in youths' own negative mood on the expression of two receptor genes relevant to asthma that are the primary targets of asthma medication, such that the combination of low child negative mood in the context of greater parental depressive symptoms would relate to the lowest levels of gene expression...
March 20, 2018: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/29538413/functional-autoantibodies-in-patients-with-different-forms-of-dementia
#2
Gerd Wallukat, Harald Prüss, Johannes Müller, Ingolf Schimke
Dementia in general and Alzheimer's disease in particular is increasingly seen in association with autoimmunity being causatively or supportively involved in the pathogenesis. Besides classic autoantibodies (AABs) present in dementia patients, there is the new autoantibody class called functional autoantibodies, which is directed against G-protein coupled receptors (GPCRs; GPCR-AABs) and are seen as pathogenic players. However, less is known about dementia patients' burden with functional autoantibodies. We present here for the first time a study analyzing the prevalence of GPCR-AABs in patients with different dementia forms such as unclassified, Lewy body, vascular and Alzheimer's dementia...
2018: PloS One
https://www.readbyqxmd.com/read/29493068/derangements-in-adrenergic-adipokine-signalling-establish-a-neurohormonal-basis-for-obesity-related-heart-failure-with-a-preserved-ejection-fraction
#3
REVIEW
Milton Packer
Among patients with heart failure and a preserved ejection (HFpEF), obesity is associated with a distinct phenotype that is characterized by adiposity-driven plasma volume expansion and cardiac overfilling, which is coupled with an impairment of ventricular distensibility. These pathophysiological abnormalities may be related to the increased actions of specific adipocyte-derived signalling molecules (aldosterone, neprilysin and leptin) that work in concert with increased renal sympathetic nerve traffic and activated beta2 -adrenergic receptors to promote sodium retention, microvascular rarefaction, cardiac fibrosis and systemic inflammation...
March 1, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29230810/trauma-exposure-interacts-with-the-genetic-risk-of-bipolar-disorder-in-alcohol-misuse-of-us-soldiers
#4
R Polimanti, J Kaufman, H Zhao, H R Kranzler, R J Ursano, R C Kessler, M B Stein, J Gelernter
OBJECTIVE: To investigate whether trauma exposure moderates the genetic correlation between substance use disorders and psychiatric disorders, we tested whether trauma exposure modifies the association of genetic risks for mental disorders with alcohol misuse and nicotine dependence (ND) symptoms. METHODS: High-resolution polygenic risk scores (PRSs) were calculated for 10 732 US Army soldiers (8346 trauma-exposed and 2386 trauma-unexposed) based on genome-wide association studies of bipolar disorder (BD), major depressive disorder, and schizophrenia...
February 2018: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29210147/drug-exposure-and-the-risk-of-multiple-sclerosis-a-systematic-review
#5
REVIEW
Heather Y Yong, Kyla A McKay, Cole G J Daley, Helen Tremlett
BACKGROUND: Several environmental and lifestyle factors have been associated with multiple sclerosis (MS) risk, including some pharmacological treatments. We systematically reviewed the literature on prescription drug exposure and MS risk. METHODS: Six databases were searched for original observational studies reporting drug exposure and MS risk published before 2017. RESULTS: Thirteen articles fulfilled inclusion criteria. Exposure to neither amiloride nor valproic acid was associated with MS (adjusted hazard ratio (adj...
February 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29132913/beta2-adrenergic-receptor-silencing-change-intraocular-pressure-in-new-zealand-rabbits
#6
Patricia Loma, Ana Guzman-Aranguez, Maria J Perez de Lara, Jesus Pintor
PURPOSE/AIM: Glaucoma consists of a group of progressive optic neuropathies that are characterized by degeneration of the optic nerve and irreversible visual filed loss. Elevated intraocular pressure is the only proven treatable risk factor and commercial products used for glaucoma treatment are focused in lowering intraocular pressure. These drugs can have various undesirable side effects and this invites to look for new strategies. The purpose of this work is to study the use of a siRNA (small interfering RNA) to selectively silence beta2 adrenergic receptors and to see whether it reduces IOP (intraocular pressure)...
November 10, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28423616/suppression-of-microrna-16-protects-against-acute-myocardial-infarction-by-reversing-beta2-adrenergic-receptor-down-regulation-in-rats
#7
Jiaqi Liu, Fei Sun, Yuying Wang, Wanqi Yang, Hongwen Xiao, Yue Zhang, Renzhong Lu, Haixia Zhu, Yuting Zhuang, Zhenwei Pan, Zhiguo Wang, Zhimin Du, Yanjie Lu
microRNA-16 (miR-16) has been shown to be up-regulated in ischemic heart. Beta2-adrenoreceptor (β2-AR) exerts cardioprotective property in ischemic injury. This study aims to determine the effect of miR-16 in cardiac injury in rats and the possible involvement of β2-AR in this process. Acute myocardial infarction (AMI) model in rats was induced by ligation of left coronary artery. Neonatal rat ventricular cells (NRVCs) were cultured in vitro tests. The cardiomyocyte model of oxidative injury was mimicked by hydrogen peroxide...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28396116/beta-2-adrenergic-receptor-agonists-are-novel%C3%A2-regulators-of-macrophage-activation-in%C3%A2-diabetic-renal-and-cardiovascular-complications
#8
Hyunjin Noh, Mi Ra Yu, Hyun Joo Kim, Ji Hye Lee, Byoung-Won Park, I-Hsien Wu, Motonobu Matsumoto, George L King
Macrophage activation is increased in diabetes and correlated with the onset and progression of vascular complications. To identify drugs that could inhibit macrophage activation, we developed a cell-based assay and screened a 1,040 compound library for anti-inflammatory effects. Beta2-adrenergic receptor (β2AR) agonists were identified as the most potent inhibitors of phorbol myristate acetate-induced tumor necrosis factor-α production in rat bone marrow macrophages. In peripheral blood mononuclear cells isolated from streptozotocin-induced diabetic rats, β2AR agonists inhibited diabetes-induced tumor necrosis factor-α production, which was prevented by co-treatment with a selective β2AR blocker...
July 2017: Kidney International
https://www.readbyqxmd.com/read/28327457/beta2-adrenergic-receptor-gene-haplotypes-and-bronchodilator-response-in-egyptian-patients-with-chronic-obstructive-pulmonary-disease
#9
Mohammad H Hussein, Khaled E Sobhy, Irene M Sabry, Ahmed T El Serafi, Eman A Toraih
PURPOSE: Chronic obstructive pulmonary disease (COPD) is a multi-factorial disorder caused by environmental determinants and genetic risk factors. Understanding the genetic predisposition of COPD is essential to develop personalized treatment regimens. Beta2-adrenergic receptor (ADRB2) gene polymorphisms have been implicated in the pathogenesis of obstructive pulmonary diseases. This study was conducted to assess the genetic association between Arg16Gly and Gln27Glu polymorphisms and COPD in the Egyptian patients, and to analyze their impact on the clinical outcome and therapeutic response...
March 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28198454/preliminary-evidence-for-a-role-of-the-adrenergic-nervous-system-in-generalized-anxiety-disorder
#10
Xiaobin Zhang, Joanna Norton, Isabelle Carrière, Karen Ritchie, Isabelle Chaudieu, Joanne Ryan, Marie-Laure Ancelin
Generalized anxiety disorder (GAD) is a common chronic condition that is understudied compared to other psychiatric disorders. An altered adrenergic function has been reported in GAD, however direct evidence for genetic susceptibility is missing. This study evaluated the associations of gene variants in adrenergic receptors (ADRs) with GAD, with the involvement of stressful events. Data were obtained from 844 French community-dwelling elderly aged 65 or over. Anxiety disorders were assessed using the Mini-International Neuropsychiatry Interview, according to DSM-IV criteria...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28162517/-283-beta2-adrenergic-receptor-gene-polymorphisms-and-haplotypes-associate-with-chronic-pain-in-sickle-cell-disease
#11
E Jhun, Y He, Y Yao, D Wilkie, R Molokie, J Wang
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28099883/beta2-adrenergic-signaling-affects-the-phenotype-of-human-cardiac-progenitor-cells-through-emt-modulation
#12
Francesca Pagano, Francesco Angelini, Camilla Siciliano, Julia Tasciotti, Giorgio Mangino, Elena De Falco, Roberto Carnevale, Sebastiano Sciarretta, Giacomo Frati, Isotta Chimenti
Human cardiac progenitor cells (CPCs) offer great promises to cardiac cell therapy for heart failure. Many in vivo studies have shown their therapeutic benefits, paving the way for clinical translation. The 3D model of cardiospheres (CSs) represents a unique niche-like in vitro microenvironment, which includes CPCs and supporting cells. CSs have been shown to form through a process mediated by epithelial-to-mesenchymal transition (EMT). β2-Adrenergic signaling significantly affects stem/progenitor cells activation and mobilization in multiple tissues, and crosstalk between β2-adrenergic signaling and EMT processes has been reported...
January 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27993566/beta2-adrenergic-receptor-homodimers-role-of-transmembrane-domain-1-and-helix-8-in-dimerization-and-cell-surface-expression
#13
Vikas K Parmar, Ellinor Grinde, Joseph E Mazurkiewicz, Katharine Herrick-Davis
Even though there are hundreds of reports in the published literature supporting the hypothesis that G protein-coupled receptors (GPCR) form and function as dimers this remains a highly controversial area of research and mechanisms governing homodimer formation are poorly understood. Crystal structures revealing homodimers have been reported for many different GPCR. For adrenergic receptors, a potential dimer interface involving transmembrane domain 1 (TMD1) and helix 8 (H8) was identified in crystal structures of the beta1-adrenergic (β1-AR) and β2-AR...
September 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27506674/differential-expression-of-skeletal-muscle-genes-following-administration-of-clenbuterol-to-exercised-horses
#14
Heather K Knych, Linda M Harrison, Stacy J Steinmetz, Nadira Chouicha, Phil H Kass
BACKGROUND: Clenbuterol, a beta2-adrenergic receptor agonist, is used therapeutically to treat respiratory conditions in the horse. However, by virtue of its mechanism of action it has been suggested that clenbuterol may also have repartitioning affects in horses and as such the potential to affect performance. Clenbuterol decreases the percent fat and increases fat-free mass following high dose administration in combination with intense exercise in horses. In the current study, microarray analysis and real-time PCR were used to study the temporal effects of low and high dose chronic clenbuterol administration on differential gene expression of several skeletal muscle myosin heavy chains, genes involved in lipid metabolism and the β2-adrenergic receptor...
August 9, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27437032/visceral-adiposity-syndrome
#15
REVIEW
Heno F Lopes, Maria Lúcia Corrêa-Giannella, Fernanda M Consolim-Colombo, Brent M Egan
The association of anthropometric (waist circumference) and hemodynamic (blood pressure) changes with abnormalities in glucose and lipid metabolism has been motivation for a lot of discussions in the last 30 years. Nowadays, blood pressure, body mass index/abdominal circumference, glycemia, triglyceridemia, and HDL-cholesterol concentrations are considered in the definition of Metabolic syndrome, referred as Visceral adiposity syndrome (VAS) in the present review. However, more than 250 years ago an association between visceral and mediastinal obesity with hypertension, gout, and obstructive apnea had already been recognized...
2016: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/27255554/prognostic-significance-of-synergistic-hexokinase-2-and-beta2-adrenergic-receptor-expression-in-human-hepatocelluar-carcinoma-after-curative-resection
#16
Zhi-Feng Zhang, Xiao-Sha Feng, He Chen, Zhi-Jun Duan, Li-Xia Wang, Dong Yang, Pi-Xu Liu, Qiu-Ping Zhang, Yan-Ling Jin, Zhi-Gang Sun, Han Liu
BACKGROUND: Hexokinase-2 (HK2) and Beta2-adrenergic receptor (Beta2AR) are overexpressed in hepatocellular carcinoma (HCC) tissues and associated with poor prognosis. However, the synergistic effect of HK2 and Beta2AR in HCC prognosis is not elucidated. The present study aims to investigate the association between HK2 and Beta2AR expressions in HCC tissues, and to evaluate the synergistic effect of HK2 and Beta2AR in HCC prognosis. METHODS: Immunohistochemistry of HK2 and Beta2AR was performed on 155 paraffin embedded HCC samples retrieved from the archives of pathology department...
June 3, 2016: BMC Gastroenterology
https://www.readbyqxmd.com/read/27245339/formoterol-decreases-muscle-wasting-as-well-as-inflammation-in-the-rat-model-of-rheumatoid-arthritis
#17
Ana Belén Gómez-SanMiguel, Carolina Gomez-Moreira, María Paz Nieto-Bona, Carmen Fernández-Galaz, Maria Ángeles Villanúa, Ana Isabel Martín, Asunción López-Calderón
Adjuvant-induced arthritis is an experimental model of rheumatoid arthritis that is associated with body weight loss and muscle wasting. β2-adrenergic receptor agonists are powerful anabolic agents that trigger skeletal muscle hypertrophy and have been proposed as a promising treatment for muscle wasting in human patients. The aim of this work was to determine whether formoterol, a selective β2-adrenoreceptor agonist, is able to ameliorate muscle wasting in arthritic rats. Arthritis was induced in male Wistar rats by intradermal injection of Freund's adjuvant...
June 1, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27046942/maximum-time-of-the-effect-of-antileukotriene-zileuton-in-treatment-of-patients-with-bronchial-asthma
#18
Naim Morina, Gëzim Boçari, Ali Iljazi, Kadir Hyseini, Gunay Halac
OBJECTIVE: Maximum time of the effect of antileukotriene substances - Zileuton in the treatment of patients with bronchial asthma and increased bronchial reactivity and of the salbutamol as agonist of the beta2 adrenergic receptor studied in this work. METHODS: Parameters of the lung function are determined with Body plethysmography. Raw and ITGV were registered and specific resistance (SRaw) was calculated. Zileuton (Zyflo, tbl. 600 mg), producer Cornerstone Therapeutics, USA was used in the research...
February 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/26746354/higenamine-protects-ischemia-reperfusion-induced-cardiac-injury-and-myocyte-apoptosis-through-activation-of-%C3%AE-2-ar-pi3k-akt-signaling-pathway
#19
Mei-ping Wu, Yi-shuai Zhang, Qian-mei Zhou, Jian Xiong, Yao-rong Dong, Chen Yan
Cardiomyocyte apoptosis contributes to ischemic cardiac injury and the development of heart failure. Higenamine is a key component of the Chinese herb aconite root that has been prescribed for treating symptoms of heart failure for thousands of years in the oriental Asian countries. It has been shown that higenamine has anti-apoptotic effects in a few cell types including cardiomyocytes. However, the pharmacological target and molecular mechanism of higenamine in the heart are still not fully illustrated. Herein, we report that higenamine protected myocyte apoptosis and ischemia/reperfusion (I/R) injury through selective activation of beta2-adrenergic receptor (β2-AR)...
February 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/26543414/impact-of-the-tamsulosin-in-alpha-adrenergic-receptor-of-airways-at-patients-with-increased-bronchial-reactibility
#20
Lirim Mustafa, Ali Ilazi, Arta Dauti, Pellumb Islami, Bashkim Kastrati, Hilmi Islami
OBJECTIVE: In this work, effect of tamsulosin as antagonist of alpha1A and alpha1B adrenergic receptor and effect of agonists of beta2 adrenergic receptor-salbutamol in patients with increased bronchial reactibility was studied. METHODS: Parameters of the lung function are determined with Body plethysmography six (6) hours after administration of tamsulosin. Raw and ITGV were registered and specific resistance (SRaw) was calculated as well. Tamsulosin was administered in per os manner as a preparation in the shape of the capsules with a brand name of "Prolosin", produced by Niche Generics Limited, Hitchin, Herts...
August 2015: Materia Socio-medica
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