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https://www.readbyqxmd.com/read/28339912/pharmacogenomics-and-patient-treatment-parameters-to-opioid-treatment-in-chronic-pain-a-focus-on-morphine-oxycodone-tramadol-and-fentanyl
#1
Renae A Lloyd, Elizabeth Hotham, Catherine Hall, Marie Williams, Vijayaprakash Suppiah
Objective. : Opioids are one of the most commonly prescribed medicines for chronic pain. However, their use for chronic pain has been controversial. The objective of this literature review was to identify the role of genetic polymorphisms on patient treatment parameters (opioid dose requirements, response, and adverse effects) for opioids used in malignant and nonmalignant chronic pain. The opioids that this review focuses on are codeine, morphine, oxycodone, tramadol, and fentanyl...
February 24, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28332719/rs7968606-polymorphism-of-anks1b-is-associated-with-improvement-in-the-panss-general-score-of-schizophrenia-caused-by-amisulpride
#2
Seung-Gul Kang, Ik-Seung Chee, Kwanghun Lee, Jonghun Lee
A recent genome-wide pharmacogenomics study showed that the rs7968606 single-nucleotide polymorphism (SNP) of the ankyrin repeat and sterile alpha motif domain-containing protein 1B (ANKS1B) gene approached the threshold of statistical significance. The aim of this study was to determine the association between the rs7968606 SNP of ANKS1B and the treatment response to amisulpride in schizophrenia patients. In total, 154 participants were enrolled from six university hospitals in Korea. All the subjects were interviewed before and after 6 weeks of amisulpride treatment with the aid of the positive and negative syndrome scale and the clinical global impression-severity scale...
March 23, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28332511/risk-of-acute-myocardial-infarction-after-discontinuation-of-antihypertensive-agents-a-case-control-study
#3
F F Alharbi, P C Souverein, M C de Groot, A H Maitland-van der Zee, A de Boer, O H Klungel
We performed a nested case-control study in a cohort of antihypertensive drug users to assess the association between discontinuation of different antihypertensive agents and the risk of acute myocardial infarction (AMI). Cases and controls were drawn from the Utrecht Cardiovascular Pharmacogenetics database. Patients who were hospitalised for their first AMI were considered cases and controls were not hospitalised for AMI. Antihypertensive users were defined as current users if the index date (date of AMI) fell within the prescribed duration or as discontinuers if this date fell outside the prescribed duration...
March 23, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28330808/germline-genetic-biomarkers-of-sunitinib-efficacy-in-advanced-renal-cell-carcinoma-results-from-the-renal-effect-trial
#4
Robert J Motzer, Robert A Figlin, Jean-François Martini, Subramanian Hariharan, Neeraj Agarwal, Chun Xiao Li, J Andrew Williams, Thomas E Hutson
BACKGROUND: Sunitinib, the vascular endothelial growth factor pathway inhibitor, is an established standard-of-care for advanced renal cell carcinoma (RCC). This study aimed to assess correlations between candidate germline single nucleotide polymorphisms (SNPs) and sunitinib efficacy in patients from the RENAL EFFECT trial (NCT00267748), a randomized phase II study in patients with metastatic RCC comparing the 4-weeks-on/2-weeks-off schedule and a continuous daily dosing schedule. PATIENTS AND METHODS: Informed consent for pharmacogenetics research was obtained from 202 out of 289 treated patients in the trial...
February 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28323671/codeine-and-opioid-metabolism-implications-and-alternatives-for-pediatric-pain-management
#5
Vidya Chidambaran, Senthilkumar Sadhasivam, Mohamed Mahmoud
PURPOSE OF REVIEW: Use of perioperative opioids for surgical pain management of children presents clinical challenges because of concerns of serious adverse effects including life-threatening respiratory depression. This is especially true for children with history of obstructive sleep apnea. This review will explore current knowledge of clinically relevant factors and genetic polymorphisms that affect opioid metabolism and postoperative outcomes in children. RECENT FINDINGS: Within the past several years, an increasing number of case reports have illustrated clinically important respiratory depression, anoxic brain injuries and even death among children receiving appropriate weight-based dosages of codeine and other opioids for analgesia at home setting particularly following tonsillectomy...
March 18, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28323125/minocycline-hepatotoxicity-clinical-characterization-and-identification-of-hla-b%C3%A2-35-02-as-a-risk-factor
#6
Thomas Jacob Urban, Paola Nicoletti, Naga Chalasani, Jose Serrano, Andrew Stolz, Ann Daly, Guruprasad Aithal, John Dillon, Victor Navarro, Joseph Odin, Huiman Barnhart, David Ostrov, Nanye Long, Elizabeth Theresa Cirulli, Paul Brent Watkins, Robert John Fontana
BACKGROUND & AIMS: Minocycline hepatotoxicity can present with prominent autoimmune features in previously healthy individuals. The aim of this study was to identify genetic determinants of minocycline DILI in a well-phenotyped cohort of patients. METHODS: Caucasian patients with minocycline DILI underwent genome-wide genotyping and were compared to unexposed population controls. Human leukocyte antigen (HLA) binding of minocycline was assessed using AutoDock Vina...
March 17, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28322460/dapsone-induced-agranulocytosis-possible-involvement-of-low-activity-n-acetyltransferase-2
#7
Ines Potočnjak, Robert Likić, Iveta Šimić, Danica Juričić Nahal, Ivana Čegec, Lana Ganoci, Nada Božina
Dapsone-induced agranulocytosis is a rare but potentially fatal adverse drug reaction (ADR). A 45-year old male Caucasian patient developed agranulocytosis caused by dapsone (diamino-diphenyl sulfone) which he was prescribed for leukocytoclastic vasculitis. Patient's treatment consisted of termination of dapsone, antibiotic therapy, and granulocyte colony stimulating factor leading to prompt improvement of symptoms and normalization of laboratory blood values. Diagnostic evaluation revealed methemoglobinemia and excluded glucose-6-phosphate dehydrogenase (G6PD) deficiency...
March 21, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28322190/activity-patterns-of-serotonin-neurons-underlying-cognitive-flexibility
#8
Sara Matias, Eran Lottem, Guillaume P Dugué, Zachary F Mainen
Serotonin is implicated in mood and affective disorders. However, growing evidence suggests that a core endogenous role is to promote flexible adaptation to changes in the causal structure of the environment, through behavioral inhibition and enhanced plasticity. We used long-term photometric recordings in mice to study a population of dorsal raphe serotonin neurons, whose activity we could link to normal reversal learning using pharmacogenetics. We found that these neurons are activated by both positive and negative prediction errors, and thus report signals similar to those proposed to promote learning in conditions of uncertainty...
March 21, 2017: ELife
https://www.readbyqxmd.com/read/28318610/pharmacogenetics-of-immunosuppressants-state-of-the-art-and-clinical-implementation%C3%A2-%C3%A2-recommendations-from-the-french-national-network-of-pharmacogenetics-rnpgx
#9
Jean-Baptiste Woillard, Laurent Chouchana, Nicolas Picard, Marie-Anne Loriot
Therapeutic drug monitoring is already widely used for immunosuppressive drugs due to their narrow therapeutic index. This article summarizes evidence reported in the literature regarding the pharmacogenetics of (i) immunosuppressive drugs used in transplantation and (ii) azathioprine used in chronic inflammatory bowel disease. The conditions of use of currently available major pharmacogenetic tests are detailed and recommendations are provided based on a scale established by the RNPGx scoring tests as "essential", "advisable" and "potentially useful"...
January 30, 2017: Thérapie
https://www.readbyqxmd.com/read/28317081/pharmacogenetic-predictors-of-treatment-related-toxicity-among-children-with-acute-lymphoblastic-leukemia
#10
REVIEW
Rochelle R Maxwell, Peter D Cole
PURPOSE OF REVIEW: The aim of this review is to summarize the most recent and most robust pharmacogenetic predictors of treatment-related toxicity (TRT) in childhood acute lymphoblastic leukemia (ALL). RECENT FINDINGS: Multiple studies have examined the toxicities of the primary chemotherapeutic agents used to treat childhood ALL in relation to host genetic factors. However, few results have been replicated independently, largely due to cohort differences in ancestry, chemotherapy treatment protocols, and definitions of toxicities...
March 20, 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/28316087/influence-of-abcc2-cyp2c8-and-cyp2j2-polymorphisms-on-tacrolimus-and-mycophenolate-sodium-based-treatment-in-brazilian-kidney-transplant-recipients
#11
Fabiana D V Genvigir, Alvaro M Nishikawa, Claudia R Felipe, Helio Tedesco-Silva, Nagilla Oliveira, Antony B C Salazar, Jose O Medina-Pestana, Sonia Q Doi, Mario H Hirata, Rosario D C Hirata
STUDY OBJECTIVE: To investigate the influence of single nucleotide polymorphisms (SNPs) in genes encoding metabolizing enzymes (CYP2C8, CYP2J2, and UGT2B7) and transporters (ABCC2 and ABCG2) on dose and/or dose-adjusted trough blood concentrations (C/D ratio), clinical outcomes, and occurrence of adverse events of tacrolimus and mycophenolate sodium in Brazilian kidney transplant recipients. DESIGN: Pharmacogenetic analysis of patients enrolled in a previously published study...
March 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28315856/an-update-on-hla-alleles-associated-with-adverse-drug-reactions
#12
Ingrid Fricke-Galindo, Adrián LLerena, Marisol López-López
Adverse drug reactions (ADRs) are considered as an important cause of morbidity and mortality. The hypersensitivity reactions are immune-mediated ADRs, which are dose-independent, unpredictable and have been associated with several HLA alleles. The present review aimed to describe HLA alleles that have been associated with different ADRs in populations worldwide, the recommendations of regulatory agencies and pharmacoeconomic information and databases for the study of HLA alleles in pharmacogenetics. A systematic search was performed in June 2016 of articles relevant to this issue in indexed journals and in scientific databases (PubMed and PharmGKB)...
March 18, 2017: Drug Metabolism and Personalized Therapy
https://www.readbyqxmd.com/read/28315743/treatment-with-peg-ifn-and-ribavirin-in-patients-with-chronic-hepatitis-c-low-grade-of-hepatic-fibrosis-genotype-1-and-4-and-favorable-ifnl3-genotype-a-pharmacogenetic-prospective-study
#13
Lucio Boglione, Chiara Simona Cardellino, Jessica Cusato, Amedeo De Nicolò, Giuseppe Cariti, Giovanni Di Perri, Antonio D'Avolio
The new direct-acting antivirals agents (DAAs) rapidly changed the treatment approach in chronic hepatitis C (CHC); however, the interferon (IFN)-free therapies availability is currently different in some countries, due to higher costs of these drugs. Naïve treated patients, who are not eligible for IFN-free therapies, could be selected for standard dual treatment with pegylated (PEG)-IFN and ribavirin (RBV), through IFN lambda 3 gene polymorphisms and fibrosis stage evaluation. Inclusion criteria were: naïve treated CHC patients with GT1 or GT4, without major contraindication to PEG-IFN or RBV, with fibrosis stage F0-F2 and IFNL3 rs8099917/rs12979860 TT/CC genotypes...
March 15, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28314093/clinical-impact-of-pharmacogenetic-guided-treatment-for-patients-exhibiting-neuropsychiatric-disorders-a-randomized-controlled-trial
#14
RANDOMIZED CONTROLLED TRIAL
Marilyn C Olson, Alejandra Maciel, Jean Francois Gariepy, Ali Cullors, Juan-Sebastian Saldivar, David Taylor, Joel Centeno, Jorge A Garces, Sandeep Vaishnavi
Objective: Pharmacogenetic testing holds promise as a personalized medicine tool by permitting individualization of pharmacotherapy in accordance with genes influencing therapeutic response, side effects, and adverse events. The authors evaluated the effect on outcomes for patients diagnosed with neuropsychiatric disorders of pharmacogenetics (PGx)-guided treatment compared to usual standard of care. Methods: This was a prospective, randomized study of 237 patients at an outpatient community-based psychiatric practice conducted between April 2015 and October 2015...
March 16, 2017: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/28299396/no-correlation-between-mthfr-c-677-c%C3%A2-%C3%A2-t-mthfr-c-1298-a%C3%A2-%C3%A2-c-and-abcb1-c-3435-c%C3%A2-%C3%A2-t-polymorphisms-and-methotrexate-therapeutic-outcome-of-rheumatoid-arthritis-in-west-algerian-population
#15
Wefa Boughrara, Ahmed Benzaoui, Meriem Aberkane, Fatima Zohra Moghtit, Samia Dorgham, Aicha Sarah Lardjam-Hetraf, Hadjer Ouhaibi-Djellouli, Elisabeth Petit Teixeira, Abdallah Boudjema
CONTEXT: The c.677 C > T and c.1298 A > C polymorphisms of methylenetatrahydrofolate reductase (MTHFR) gene and c.3435 C > T polymorphism of ATP-Binding cassette B1 (ABCB1) gene are reported as pharmacogenetic markers, influencing the methotrexate (MTX) therapeutic outcome in rheumatoid arthritis (RA) patients. OBJECTIVES: The aims of this study were to determine the relationship between these polymorphisms and clinical response and/or adverse drug reaction (ADRs) to MTX treatment...
March 15, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28296649/a-nomogram-to-predict-5-fluorouracil-toxicity-when-pharmacogenomics-meets-the-patient
#16
Andrea Botticelli, Concetta E Onesti, Lidia Strigari, Mario Occhipinti, Francesca R Di Pietro, Bruna Cerbelli, Antonella Petremolo, Elisabetta Anselmi, Serena Macrini, Michela Roberto, Rosa Falcone, Luana Lionetto, Marina Borro, Annalisa Milano, Giovanna Gentile, Maurizio Simmaco, Paolo Marchetti, Federica Mazzuca
Fluoropyrimidines combined with other agents are commonly used for gastrointestinal cancer treatment. Considering that severe toxicities occur in 30% of patients, we aimed to structure a nomogram to predict toxicity, based on metabolic parameter and patients' characteristics. We retrospectively enrolled patients affected by gastrointestinal tract cancers. Pretreatment 5-fluorouracil (5-FU) degradation rate and DPYD, TSER, MTHFR A1298T, and C677T gene polymorphisms were characterized. Data on toxicities were collected according to CTCAE v3...
March 14, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28294551/the-ignite-pharmacogenetics-working-group-an-opportunity-for-building-evidence-with-pharmacogenetic-implementation-in-a-real-world-setting
#17
REVIEW
L H Cavallari, A L Beitelshees, K V Blake, L G Dressler, J D Duarte, A Elsey, J N Eichmeyer, P E Empey, J P Franciosi, J K Hicks, A M Holmes, Ljb Jeng, C R Lee, J J Lima, N A Limdi, J Modlin, A O Obeng, N Petry, V M Pratt, T C Skaar, S Tuteja, D Voora, M Wagner, K W Weitzel, R A Wilke, J F Peterson, J A Johnson
No abstract text is available yet for this article.
March 14, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28293925/genetic-signatures-of-asthma-exacerbation
#18
REVIEW
Heung Woo Park, Kelan G Tantisira
Asthma exacerbation (AE) usually denotes worsening of asthma symptoms that requires intense management to prevent further deterioration. AE has been reported to correlate with clinical and demographic factors, such as race, gender, and treatment compliance as well as environmental factors, such as viral infection, smoking, and air pollution. In addition, recent observations suggest that there are likely to be genetic factors specific to AE. Understanding genetic factors specific to AE is essential to develop therapy tailored for exacerbation-prone asthma...
May 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28291238/polymorphisms-of-5-htt-lpr-and-gn%C3%AE-3-825c-t-and-response-to-antidepressant-treatment-in-functional-dyspepsia-a-study-from-the-functional-dyspepsia-treatment-trial
#19
Yuri A Saito, G Richard Locke, Ann E Almazar, Ernest P Bouras, Colin W Howden, Brian E Lacy, John K DiBaise, Charlene M Prather, Bincy P Abraham, Hashem B El-Serag, Paul Moayyedi, Linda M Herrick, Lawrence A Szarka, Michael Camilleri, Frank A Hamilton, Cathy D Schleck, Katherine E Tilkes, Alan R Zinsmeister, Nicholas J Talley
OBJECTIVES: The Functional Dyspepsia Treatment Trial reported that amitriptyline (AMI) was associated with adequate relief of functional dyspepsia (FD) symptoms, but the pharmacogenetics of antidepressant response in FD are not known. GNβ3 825C>T CC genotype has been previously linked to FD and TT genotype to antidepressant response in depression. The ss genotype of the 5-HTT LPR variant of the serotonin transporter gene (SLC6A4) has been linked to selective serotonin reuptake inhibitor (SSRI) response...
March 14, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28289867/association-of-the-hoct1-abcb1-genotype-with-efficacy-and-tolerability-of-imatinib-in-patients-affected-by-chronic-myeloid-leukemia
#20
Laura Galeotti, Francesco Ceccherini, Dario Domingo, Marco Laurino, Marialuisa Polillo, Antonello Di Paolo, Claudia Baratè, Carmen Fava, Antonio D'Avolio, Giulia Cervetti, Francesca Guerrini, Giulia Fontanelli, Elena Ciabatti, Susanna Grassi, Elena Arrigoni, Romano Danesi, Mario Petrini, Fulvio Cornolti, Giuseppe Saglio, Sara Galimberti
PURPOSE: The present study was aimed at investigating whether imatinib pharmacogenetics is related to its pharmacodynamics in patients affected by chronic myeloid leukemia. METHODS: Through a procedure based on a sequence of classical statistics methods, we investigated the possible relationships between treatment efficacy/tolerability and combinations of time-independent variables as gender and genetic covariates in the form of single nucleotide polymorphisms (SNPs) or combinations thereof...
March 13, 2017: Cancer Chemotherapy and Pharmacology
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