keyword
MENU ▼
Read by QxMD icon Read
search

Cyp2d6

keyword
https://www.readbyqxmd.com/read/28346068/institutional-profile-university-of-florida-health-personalized-medicine-program
#1
Larisa H Cavallari, Kristin W Weitzel, Amanda R Elsey, Xinyue Liu, Scott A Mosley, Donald M Smith, Benjamin J Staley, Almut G Winterstein, Carol A Mathews, Francesco Franchi, Fabiana Rollini, Dominick J Angiolillo, Petr Starostik, Michael J Clare-Salzler, David R Nelson, Julie A Johnson
The University of Florida (UF) Health Personalized Medicine Program launched in 2012 with CYP2C19 genotyping for clopidogrel response at UF Health Shands Hospital. We have since expanded CYP2C19 genotyping to UF Health Jacksonville and established the infrastructure at UF Health to support clinical implementation for five additional gene-drug pairs: TPMT-thiopurines, IFNL3 (IL28B)-PEG IFN-α-based regimens, CYP2D6-opioids, CYP2D6/CYP2C19-antidepressants and CYP2C19-proton pump inhibitors. We are contributing to the evidence based on outcomes with genotype-guided therapy through pragmatic studies of our clinical implementations...
March 27, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28346059/deferasirox-pharmacogenetic-influence-on-pharmacokinetic-efficacy-and-toxicity-in-a-cohort-of-pediatric-patients
#2
Sarah Allegra, Silvia De Francia, Jessica Cusato, Arianna Arduino, Davide Massano, Filomena Longo, Antonio Piga, Antonio D'Avolio
AIM: We aimed to evaluate the influence of genetic polymorphisms involved in deferasirox metabolism and transport on its pharmacokinetics and treatment toxicity, in a cohort of β-thalassaemic children. PATIENTS & METHODS: Drug plasma concentrations were measured by a HPLC-UV method. Allelic discrimination for UGT1A1, UGT1A3, CYP1A1, CYP1A2, CYP2D6, MRP2 and BCRP1 polymorphisms was performed by real-time PCR. RESULTS: CYP1A1 rs2606345AA influenced Ctrough (p = 0...
March 27, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28345306/the-burden-and-management-of-cytochrome-p450-2d6-cyp2d6-mediated-drug-drug-interaction-ddi-co-medication-of-metoprolol-and-paroxetine-or-fluoxetine-in-the-elderly
#3
Muh Akbar Bahar, Eelko Hak, Jens H J Bos, Sander D Borgsteede, Bob Wilffert
PURPOSE: Metoprolol and paroxetine/fluoxetine are inevitably co-prescribed because cardiovascular disorders and depression often coexist in the elderly. This leads to CYP2D6-mediated drug-drug interactions (DDI). Because systematic evaluations are lacking, we assessed the burden of metoprolol-paroxetine/fluoxetine interaction in the elderly and how these interactions are managed in Dutch community pharmacies. METHOD: Dispensing data were collected from the University of Groningen pharmacy database (IADB...
March 26, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28344492/cyp2c9-cypc19-and-cyp2d6-gene-profiles-and-gene-susceptibility-to-drug-response-and-toxicity-in-turkish-population
#4
Merve Arici, Gül Özhan
Pharmacogenetics is a vast field covering drug discovery research, the genetic basis of pharmacokinetics and dynamics, genetic testing and clinical management in diseases. Pharmacogenetic approach usually focuses on variations of drug transporters, drug targets, drug metabolizing enzymes and other biomarker genes. Cytochrome P450 (CYP) enzymes, an essential source of variability in drug-response, play role in not only phase I-dependent metabolism of xenobiotics but also metabolism of endogenous compounds such as steroids, vitamins and fatty acids...
March 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28343093/influence-of-genetic-variants-of-cyp2d6-cyp2c9-cyp2c19-and-cyp3a4-on-antiepileptic-drug-metabolism-in-pediatric-patients-with-refractory-epilepsy
#5
Miguel A López-García, Iris A Feria-Romero, Héctor Serrano, Darío Rayo-Mares, Pietro Fagiolino, Marta Vázquez, Consuelo Escamilla-Núñez, Israel Grijalva, David Escalante-Santiago, Sandra Orozco-Suarez
BACKGROUND: Identified the polymorphisms of CYP2D6, CYP2C9, CYP2C19 and CYP3A4, within a rigorously selected population of pediatric patients with drug-resistant epilepsy. METHOD: The genomic DNA of 23 drug-resistant epilepsy patients and 7 patients with good responses were analyzed. Ten exons in these four genes were genotyped, and the drug concentrations in saliva and plasma were determined. RESULTS: The relevant SNPs with pharmacogenomics relations were CYP2D6*2 (rs16947) decreased your activity and CYP2D6*4 (rs1065852), CYP2C19*2 (rs4244285) and CYP3A4*1B (rs2740574) by association with poor metabolizer...
January 19, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28342193/metabolism-of-the-tryptamine-derived-new-psychoactive-substances-5-meo-2-me-dalt-5-meo-2-me-alcht-and-5-meo-2-me-dipt-and-their-detectability-in-urine-studied-by-gc-ms-lc-ms-n-and-lc-hr-ms-ms
#6
Achim T Caspar, Jonas B Gaab, Julian A Michely, Simon D Brandt, Markus R Meyer, Hans H Maurer
Many N,N-dialkylated tryptamines show psychoactive properties and were encountered as new psychoactive substances. The aims of the presented work were to study the phase I and II metabolism and the detectability in standard urine screening approaches (SUSA) of 5-methoxy-2-methyl-N,N-diallyltryptamine (5-MeO-2-Me-DALT), 5-methoxy-2-methyl-N-allyl-N-cyclohexyltryptamine (5-MeO-2-Me-ALCHT), and 5-methoxy-2-methyl-N,N-diisopropyltryptamine (5-MeO-2-Me-DIPT) using GC-MS, LC-MS(n) , and LC-HR-MS/MS. For metabolism studies, urine was collected over a 24-h period after administration of the compounds to male Wistar rats at 20 mg/kg body weight (BW)...
March 24, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28340451/the-role-of-drug-drug-interactions-in-prostate-cancer-treatment-focus-on-abiraterone-acetate-prednisone-and-enzalutamide
#7
REVIEW
Marzia Del Re, Stefano Fogli, Lisa Derosa, Francesco Massari, Paul De Souza, Stefania Crucitta, Sergio Bracarda, Daniele Santini, Romano Danesi
Elderly patients with cancer may have comorbidities, each requiring additional pharmacologic treatment. Therefore, the occurrence of pharmacokinetic (PK) and pharmacodynamic (PD) interactions is very likely, and the risk of adverse reactions (ADRs), due to the narrow therapeutic window of anticancer drugs, is increased. Drug-drug interactions (DDIs) may occur in prostate cancer patients due to inhibition by abiraterone of liver cytochrome P450 (CYP)-dependent enzymes CYP2C8 and 2D6, which are involved in the metabolism of approximately 25% of all drugs, and induction by enzalutamide of CYP3A4, 2C9 and 2C19, which metabolize up to 50% of medications...
March 9, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28340122/potential-role-of-patients-cyp3a-status-in-clozapine-pharmacokinetics
#8
Katalin Tóth, Gábor Csukly, Dávid Sirok, Ales Belic, Ádám Kiss, Edit Háfra, Máté Déri, Ádám Menus, István Bitter, Katalin Monostory
Background: The atypical antipsychotic clozapine is effective in treatment-resistant schizophrenia; however, the success or failure of clozapine therapy is substantially affected by the variables that impact the clozapine blood concentration. Thus, elucidating the inter-individual differences in clozapine pharmacokinetics can facilitate the personalized therapy. Methods: Since potential role in clozapine metabolism is assigned to CYP1A2, CYP2C19, CYP2D6 and CYP3A enzymes, the association between the patients' CYP-status (CYP genotypes, CYP expression) and clozapine clearance was evaluated in 92 psychiatric patients...
March 18, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28331291/pharmacokinetics-and-tolerability-of-da-8031-a-novel-selective-serotonin-reuptake-inhibitor-for-premature-ejaculation-in-healthy-male-subjects
#9
Dongseong Shin, SeungHwan Lee, Sojeong Yi, Seo Hyun Yoon, Joo-Youn Cho, Mi Young Bahng, In-Jin Jang, Kyung-Sang Yu
OBJECTIVE: DA-8031 is a selective serotonin reuptake inhibitor under development for the treatment of premature ejaculation. This is the first-in-human study aimed at evaluating the pharmacokinetics and tolerability of DA-8031 and its metabolites (M1, M2, M4, and M5) in the plasma and urine after administration of a single oral dose in healthy male subjects. METHODS: A dose block-randomized, double-blind, placebo-controlled, single ascending dose study was conducted...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28327932/integrated-safety-analysis-of-rolapitant-with-coadministered-drugs-from-phase-ii-iii-trials-an-assessment-of-cyp2d6-or-bcrp-inhibition-by-rolapitant
#10
S Barbour, T Smit, X Wang, D Powers, S Arora, V Kansra, M Aapro, J Herrstedt
Background: Rolapitant, a long-acting neurokinin (NK) 1 receptor antagonist (RA), has demonstrated efficacy in prevention of chemotherapy-induced nausea and vomiting in patients administered moderately or highly emetogenic chemotherapy. Unlike other NK 1 RAs, rolapitant does not inhibit or induce cytochrome P450 (CYP) 3A4, but it does inhibit CYP2D6 and breast cancer resistance protein (BCRP). To analyze potential drug-drug interactions between rolapitant and concomitant medications, this integrated safety analysis of four double-blind, randomized phase II or III studies of rolapitant examined adverse events by use versus non-use of drug substrates of CYP2D6 or BCRP...
February 23, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28323671/codeine-and-opioid-metabolism-implications-and-alternatives-for-pediatric-pain-management
#11
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/28320034/variations-in-infant-cyp2b6-genotype-associated-with-the-need-for-pharmacological-treatment-for-neonatal-abstinence-syndrome-in-infants-of-methadone-maintained-opioid-dependent-mothers
#12
Helen Mactier, Poppy McLaughlin, Cheryl Gillis, Michael David Osselton
Background Neonatal abstinence syndrome (NAS) in infants of methadone-maintained opioid-dependent (MMOD) mothers cannot be predicted in individual cases. We investigated whether variation in infant genotype is associated with severity of NAS. Methods This is a pilot observational cohort study of 21 MMOD mothers and their newborns. Infant buccal swabs were obtained soon after delivery, together with a maternal blood sample for the determination of maternal plasma methadone concentration. Genomic variation in five opioid-related genes (ABCB1, COMT, CYP2B6, CYP2D6, and OPRM1) was ascertained from infant buccal swabs and related to need for pharmacological treatment of NAS...
March 20, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28320023/-update-opipramol
#13
Maximilian Gahr, Christoph Hiemke, Bernhard J Connemann
Opipramol was developed in the 1960s as an antidepressant and has chemical similarities with tricyclic antidepressants. Pharmacodynamic properties with absent reuptake inhibition of serotonin and noradrenaline and agonism at sigma receptors distinguish opipramol from tricyclics. Furthermore, antidepressive effects are smaller than the anxiolytic ones. The mechanism of action of opipramol is currently not sufficiently understood. Agonistic effects at sigma receptors have been linked with therapeutic effects...
March 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28303314/-genetic-tests-for-controlling-treatment-with-antidepressants
#14
T Bschor, C Baethge, C Hiemke, B Müller-Oerlinghausen
In clinical practice, there is a need for a more individualized selection of antidepressants and adequate dosage. The investigation of pharmacokinetically relevant genes is a promising approach to assist this selection. In the past 2 years, two commercially available tests have been subject of advertisement, a test from Stada, which analyses variants of the cytochrome P450 isoenzymes CYP2D6 and CYP2C19 and a test from HMNC Brain Health, which analyses variants of the ABCB1 gene. The costs for both kits are not covered by the statutory health insurance and it is therefore proposed that the patients are invoiced directly in the form of individual healthcare payment...
March 16, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28296334/a-study-on-cyp2c19-and-cyp2d6-polymorphic-effects-on-pharmacokinetics-and-pharmacodynamics-of-amitriptyline-in-healthy-koreans
#15
S Ryu, S Park, J H Lee, Y R Kim, H S Na, H S Lim, H Y Choi, I Y Hwang, J G Lee, Z W Park, W Y Oh, J M Kim, S E Choi
We performed a double-blinded, genotype-based stratification study to explore the pharmacokinetics and pharmacodynamics of amitriptyline according to CYP2C19 and CYP2D6 genotype in Korean subjects. Twenty-four healthy adults were grouped by genotype of CYP2C19 and CYP2D6. After a single dose of 25 mg of amitriptyline, blood samples were collected and anticholinergic effects were measured. The extent of N-demethylation of amitriptyline significantly decreased in subjects carrying two nonfunctional alleles of CYP2C19...
March 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28293118/cyp2d6-polymorphisms-may-predict-occurrence-of-adverse-effects-to-tamoxifen-a-preliminary-retrospective-study
#16
Ishani Wickramage, Kamani Hemamala Tennekoon, Merenchi Arachchige Yasantha Ariyaratne, Asanka Sudeshini Hewage, Tharmini Sundralingam
INTRODUCTION AND AIMS: Tamoxifen is an adjuvant drug effective in treating hormone receptor - positive breast cancer. However, 30%-50% of patients relapse and many develop adverse effects, such as hot flashes and fatty liver. Allelic variations altering the activity of cytochrome P450-2D6 enzyme affect response to tamoxifen by modulating metabolism of tamoxifen into its pharmacologically active metabolite endoxifen. Although association between CYP2D6 polymorphisms and recurrence of breast cancer in patients on tamoxifen had been reported, little evidence exists on association between these polymorphisms and adverse effects to tamoxifen...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28290770/in-vivo-characterization-of-cyp2d6-12-29-and-84-using-dextromethorphan-as-a-probe-drug-a-case-report
#17
Andrea Gaedigk, Greyson P Twist, Emily G Farrow, Jennifer A Lowry, Sarah E Soden, Neil A Miller
CYP2D6*84 was first described in a Black South African subject, however, its function remains unknown. Astrolabe, a probabilistic scoring tool developed in our laboratory to call genotypes from whole genome sequence, identified CYP2D6*84 in a trio. The father presented with intermediate metabolism when challenged with the CYP2D6 probe drug dextromethorphan (DM/dextrorphan [DX] = 0.0839). Since his second allele, CYP2D6*12, is nonfunctional, the observed activity is derived by CYP2D6*84. This finding suggests that the allele's hallmark P267H causes decreased activity toward DM and that this allele should receive a value of 0...
March 14, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28289025/age-weight-and-cyp2d6-genotype-are-major-determinants-of-primaquine-pharmacokinetics-in-african-children
#18
Bronner P Gonçalves, Helmi Pett, Alfred B Tiono, Daryl Murry, Sodiomon Sirima, Mikko Niemi, Teun Bousema, Chris Drakeley, Rob Ter Heine
Low dose primaquine is recommended to prevent Plasmodium falciparum malaria transmission in areas threatened by artemisinin resistance and areas aiming for malaria elimination. Community treatment campaigns with artemisinin-based combination therapy in combination with the gametocytocidal primaquine dose target all age groups but no studies thus far have assessed the pharmacokinetics of this gametocytocidal drug in African children. We recruited forty children participating in a primaquine efficacy trial in Burkina Faso to study primaquine pharmacokinetics...
March 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28287454/am-2201-inhibits-multiple-cytochrome-p450-and-uridine-5-diphospho-glucuronosyltransferase-enzyme-activities-in-human-liver-microsomes
#19
Ju-Hyun Kim, Soon-Sang Kwon, Tae Yeon Kong, Jae Chul Cheong, Hee Seung Kim, Moon Kyo In, Hye Suk Lee
AM-2201 is a synthetic cannabinoid that acts as a potent agonist at cannabinoid receptors and its abuse has increased. However, there are no reports of the inhibitory effect of AM-2201 on human cytochrome P450 (CYP) or uridine 5'-diphospho-glucuronosyltransferase (UGT) enzymes. We evaluated the inhibitory effect of AM-2201 on the activities of eight major human CYPs (1A2, 2A6, 2B6, 2C8, 2C9, 2C19, 2D6, and 3A4) and six major human UGTs (1A1, 1A3, 1A4, 1A6, 1A9, and 2B7) enzymes in pooled human liver microsomes using liquid chromatography-tandem mass spectrometry to investigate drug interaction potentials of AM-2201...
March 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28277663/development-of-fluorinated-analogues-of-perhexiline-with-improved-pharmacokinetic-properties-and-retained-efficacy
#20
Chih-Chung Tseng, Hannah Noordali, Monica Sani, Melanie Madhani, Denis M Grant, Michael P Frenneaux, Matteo Zanda, Iain R Greig
We designed and synthesized perhexiline analogues that have the same therapeutic profile as the parent cardiovascular drug but lacking its metabolic liability associated with CYP2D6 metabolism. Cycloalkyl perhexiline analogues 6a-j were found to be unsuitable for further development, as they retained a pharmacokinetic profile very similar to that shown by the parent compound. Multistep synthesis of perhexiline analogues incorporating fluorine atoms onto the cyclohexyl ring(s) provided a range of different fluoroperhexiline analogues...
March 21, 2017: Journal of Medicinal Chemistry
keyword
keyword
87431
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"