Pharmacogenomics
Dabrafenib treatment in a patient with BRAF V600E ganglioglioma: circulating exosome-derived cancer RNA supports treatment choice and clinical monitoring.
Dabrafenib treatment in a patient with BRAF V600E ganglioglioma: circulating exosome-derived cancer RNA supports treatment choice and clinical monitoring.
Neuro Oncol. 2019 12 17;21(12):1610-1611
Authors: Pasqualetti F, Restante G, Gonnelli A, Rofi E, Molinari A, Crucitta S, Paiar F, Rudà R, Danesi R, Soffietti R, Del Re M
PMID: 31504796 [PubMed - indexed for MEDLINE]
pharmacogenomics; +16 new citations
16 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:
These pubmed results were generated on 2020/08/18
PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Optimising Seniors' Metabolism of Medications and Avoiding Adverse Drug Events Using Data on How Metabolism by Their P450 Enzymes Varies with Ancestry and Drug-Drug and Drug-Drug-Gene Interactions.
Optimising Seniors' Metabolism of Medications and Avoiding Adverse Drug Events Using Data on How Metabolism by Their P450 Enzymes Varies with Ancestry and Drug-Drug and Drug-Drug-Gene Interactions.
J Pers Med. 2020 Aug 11;10(3):
Authors: Thomas RE
Abstract
Many individuals ≥65 have multiple illnesses and polypharmacy. Primary care physicians prescribe >70% of their medications and renew specialists' prescriptions. Seventy-five percent of all medications are metabolised by P450 cytochrome enzymes. This article provides unique detailed tables how to avoid adverse drug events and optimise prescribing based on two key databases. DrugBank is a detailed database of 13,000 medications and both the P450 and other complex pathways that metabolise them. The Flockhart Tables are detailed lists of the P450 enzymes and also include all the medications which inhibit or induce metabolism by P450 cytochrome enzymes, which can result in undertreatment, overtreatment, or potentially toxic levels. Humans have used medications for a few decades and these enzymes have not been subject to evolutionary pressure. Thus, there is enormous variation in enzymatic functioning and by ancestry. Differences for ancestry groups in genetic metabolism based on a worldwide meta-analysis are discussed and this article provides advice how to prescribe for individuals of different ancestry. Prescribing advice from two key organisations, the Dutch Pharmacogenetics Working Group and the Clinical Pharmacogenetics Implementation Consortium is summarised. Currently, detailed pharmacogenomic advice is only available in some specialist clinics in major hospitals. However, this article provides detailed pharmacogenomic advice for primary care and other physicians and also physicians working in rural and remote areas worldwide. Physicians could quickly search the tables for the medications they intend to prescribe.
PMID: 32796505 [PubMed - as supplied by publisher]
Structural Insights into the Specificity of Ligand Binding and Coactivator Assembly by Estrogen-Related Receptor β.
Structural Insights into the Specificity of Ligand Binding and Coactivator Assembly by Estrogen-Related Receptor β.
J Mol Biol. 2020 Aug 11;:
Authors: Yao B, Zhang S, Wei Y, Tian S, Lu Z, Jin L, He Y, Xie W, Li Y
Abstract
Estrogen-related receptor β (ERRβ) is a nuclear receptor critical for many biological processes. Despite the biological and pharmaceutical importance of ERRβ, deciphering the structure of ERRβ have been hampered by the difficulties in obtaining a pure and stable protein for structural studies. In fact, the ERRβ ligand binding domain (LBD) remains the last unsolved ERR structure and also one of only a few unknown nuclear receptor structures. Here, we report the identification of a critical single residue mutation resulted in robust solubility and stability of an active ERRβ LBD, thereby providing a protein tool enabling the first probe into the biochemical and structural studies of this important receptor. The crystal structure reveals key structural features that have enabled the integration of the molecular determinants of signals transduced across the ligand binding and coregulator recruitment by all three ERR subtypes, which also provides a framework for the rational design of selective and potent ligands for the treatment of various ERR-mediated diseases.
PMID: 32795533 [PubMed - as supplied by publisher]
Exome Sequencing Reveals Signal Transduction Genes Involved in Impulse Control Disorders in Parkinson's Disease.
Exome Sequencing Reveals Signal Transduction Genes Involved in Impulse Control Disorders in Parkinson's Disease.
Front Neurol. 2020;11:641
Authors: Prud'hon S, Bekadar S, Rastetter A, Guégan J, Cormier-Dequaire F, Lacomblez L, Mangone G, You H, Daniau M, Marie Y, Bertrand H, Lesage S, Tezenas Du Montcel S, Anheim M, Brice A, Danjou F, Corvol JC
Abstract
Introduction: Impulse control disorders (ICDs) frequently complicate dopamine agonist (DA) therapy in Parkinson's disease (PD). There is growing evidence of a high heritability for ICDs in the general population and in PD. Variants on genes belonging to the reward pathway have been shown to account for part of this heritability. We aimed to identify new pathways associated with ICDs in PD. Methods: Thirty-six Parkinsonian patients on DA therapy with (n = 18) and without ICDs (n = 18) matched on age at PD's onset, and gender was selected to represent the most extreme phenotypes of their category. Exome sequencing was performed, and variants with a strong functional impact in brain-expressed genes were selected. Allele frequencies and their distribution in genes and pathways were analyzed with single variant and SKAT-O tests. The 10 most associated variants, genes, and pathways were retained for replication in the Parkinson's progression markers initiative (PPMI) cohort. Results: None of markers tested passed the significance threshold adjusted for multiple comparisons. However, the "Adenylate cyclase activating" pathway, one of the top associated pathways in the discovery data set (p = 1.6 × 10-3) was replicated in the PPMI cohort and was significantly associated with ICDs in a post hoc pooled analysis (combined p-value 3.3 × 10-5). Two of the 10 most associated variants belonged to genes implicated in cAMP and ERK signaling (rs34193571 in RasGRF2, p = 5 × 10-4; rs1877652 in PDE2A, p = 8 × 10-4) although non-significant after Bonferroni correction. Conclusion: Our results suggest that genes implicated in the signaling pathways linked to G protein-coupled receptors participate to genetic susceptibility to ICDs in PD.
PMID: 32793093 [PubMed]
pharmacogenomics; +14 new citations
14 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:
These pubmed results were generated on 2020/08/14
PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
pharmacogenomics; +13 new citations
13 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:
These pubmed results were generated on 2020/08/14
PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Risk factors of severe hospitalized respiratory syncytial virus infection in tertiary care center in Thailand.
Risk factors of severe hospitalized respiratory syncytial virus infection in tertiary care center in Thailand.
Influenza Other Respir Viruses. 2020 Aug 12;:
Authors: Aikphaibul P, Theerawit T, Sophonphan J, Wacharachaisurapol N, Jitrungruengnij N, Puthanakit T
Abstract
AIM: To determine factors associated with severe hospitalized Respiratory syncytial virus (RSV)-associated LRTI and to describe management in tertiary care center.
METHODS: Retrospective medical record review was conducted among children under 5 years old hospitalized with RSV-associated LRTI at King Chulalongkorn Memorial Hospital. Severe RSV-associated LRTI was defined as death, mechanical ventilator, or positive pressure ventilation use, prolonged hospitalization >7 days. Factors associated with severe RSV were analyzed using univariate and multivariate logistic regression.
RESULTS: From January 2011 to December 2016, 427 children were hospitalized. Median age was 10 months (IQR 4.2-23.0). One hundred seventy-four (41%) patients had severe RSV (11 deaths, 56 mechanical ventilators, 19 positive pressure ventilation, and 88 prolonged hospitalization). Factors associated with severe RSV were chronic lung disease (aOR 15.16 [4.26-53.91]), cirrhosis/biliary atresia (aOR 15.01 [3.21-70.32]), congenital heart disease (aOR 5.11 [1.97-13.23]), chemotherapy (aOR 4.7 [1.34-16.56]), and pre-term (aOR 2.03 [1.13-3.67]). Oxygen therapy was mainly low flow oxygen delivery. 88% of cases received bronchodilator. Parenteral antibiotics were prescribed in 37.9% of cases.
CONCLUSIONS: Children with co-morbidities have higher risk of severe RSV-associated LRTI. More than two-third of patients received bronchodilator, of which was not recommended by American Academy of Pediatrics. The specific treatment and prevention for RSV are urgently needed.
PMID: 32783380 [PubMed - as supplied by publisher]
Pharmacogenomics Instruction Depth, Extent, and Perception in US Medical Curricula.
Pharmacogenomics Instruction Depth, Extent, and Perception in US Medical Curricula.
J Med Educ Curric Dev. 2020 Jan-Dec;7:2382120520930772
Authors: Basyouni D, Shatnawi A
Abstract
Introduction: This descriptive study aimed to evaluate the depth, extent, and perception of pharmacogenomics instruction in schools and colleges of medicine in the United States. Changes in medical pharmacogenomics instruction over the past decade were also assessed by comparing our results with those of a previous study.
Methods: An electronic survey was emailed to all accredited allopathic and osteopathic medical schools across the US using Qualtrics online survey software. Multiple email reminders were sent to increase the response rate.
Results: Of 151 targeted eligible medical schools across the United States, 22 responded to the survey. One invalid response was excluded, resulting in a response rate of 13.9%. Of responding schools, 85.7% cover pharmacogenomics in their curriculum, mainly in the second year, however, none teach pharmacogenomics as a stand-alone course. The depth and the extent of pharmacogenomics coverage varied among responding programs. Although 66.7% of respondents believe that neither physicians nor other health care professionals possess appropriate knowledge in pharmacogenomics, only 23.8% plan to increase pharmacogenomics instruction in their curricula in the near future.
Conclusions: Most medical schools surveyed include some pharmacogenomics instruction in their curricula, although the depth and the extent of the instruction varies. Most respondents believe that physicians and other health care professionals today do not possess an appropriate level of knowledge in pharmacogenomics; however, few institutions report short-term plans to increase pharmacogenomics instruction. Pharmacogenomics plays a significant role in personalized medicine; greater efforts by medical school decision-makers are needed to improve the level of pharmacogenomics instruction in medical curricula.
PMID: 32782929 [PubMed]
Are anti-PD1 and anti-PD-L1 alike? The non-small-cell lung cancer paradigm.
Are anti-PD1 and anti-PD-L1 alike? The non-small-cell lung cancer paradigm.
Oncol Rev. 2020 Jul 06;14(2):490
Authors: Banna GL, Cantale O, Bersanelli M, Del Re M, Friedlaender A, Cortellini A, Addeo A
Abstract
Anti-PD1 and anti-PD-L1 agents may have intrinsic and clinically relevant differences in the treatment of non-small cell lung cancer (NSCLC) patients. By reviewing currently available indirect evidence on these agents for NSCLC treatment, highlighting possible inter- and intra-class dissimilarities, anti-PD1 agents showed a higher response rate and a better outcome when combined with chemotherapy for the first-line treatment of patients with squamous and PD-L1 low advanced NSCLC, as compared to anti-PD-L1 agents. Conversely, anti-PD-L1 agents were responsible for less severe adverse events (AEs), particularly, immunerelated AEs. These differences could be explained by their different specific properties. Considering possible differences between anti-PD1 and anti-PD-L1 agents could be clinically relevant for treatment tailoring and inspiring new investigational approaches.
PMID: 32782728 [PubMed]
Biomarker phenotyping drives clinical management in axillary sentinel node: A retrospective study on women with primary breast cancer in 2002.
Biomarker phenotyping drives clinical management in axillary sentinel node: A retrospective study on women with primary breast cancer in 2002.
Oncol Lett. 2020 Sep;20(3):2469-2476
Authors: Diotaiuti S, De Summa S, Altieri R, Dantona C, Tommasi S, Di Gennaro M, Rubini G, Pastena MI, Argentiero A, Zito FA, Silvestris N, Paradiso AV
Abstract
The current study examined if cancer biomarker phenotyping could predict the clinical/pathological status of axillary nodes in women with primary breast cancer. Primary breast cancers from 2002 were analyzed for tumor size, estrogen receptor (ER), progesterone receptor (PgR), Ki-67MIB expression and Her2/neu amplification. Relationships between the clinical and pathological status of the axilla and the biological subtypes classification were analyzed using univariate, multivariate and regression tree analysis. A total of 65% of women with axillary nodes clinically involved had complete axillary node dissection (ALND) while 705 women with clinically negative axillary underwent sentinel lymph node biopsy (SLNB), 18.5% of the latter had at least one pathologically SLNB involved node. Multivariate analysis revealed that the Luminal A subtype was significantly associated (OR 0.62; P<10-9) with clinical negative axilla while HER2pos/not Luminal was associated with clinical positivity (OR 1.71; P<0.01). No significant association between biological subtypes and SLNB status was demonstrated. Regression tree analysis revealed that subgroups with significantly different probability of SLNB status were separated according to tumor size and PgR values. In conclusion, the current study demonstrated that biomarker breast cancer phenotyping is significantly associated with clinical status of axillary nodes but not with pathological involvement of nodes at SLNB. Regression tree analysis could represent a valid attempt to individualize some patients subgroups candidate to different surgical axilla approaches.
PMID: 32782565 [PubMed]
Challenges and Opportunities for Clinical Pharmacogenetic Research Studies in Resource-Limited Settings: Conclusions From the Council for International Organizations of Medical Sciences-Ibero-American Network of Pharmacogenetics and Pharmacogenomics...
Challenges and Opportunities for Clinical Pharmacogenetic Research Studies in Resource-Limited Settings: Conclusions From the Council for International Organizations of Medical Sciences-Ibero-American Network of Pharmacogenetics and Pharmacogenomics Meeting.
Clin Ther. 2020 Aug 08;:
Authors: Peñas-LLedó E, Terán E, Sosa-Macías M, Galaviz-Hernández C, Gil JP, Nair S, Diwakar S, Hernández I, Lara-Riegos J, Ramírez-Roa R, Verde I, Tarazona-Santos E, Molina-Guarneros J, Moya G, Rägo L, LLerena A
Abstract
PURPOSE: The symposium Health and Medicines in Indigenous Populations of America was organized by the Council for International Organizations of Medical Sciences (CIOMS) Working Group on Clinical Research in Resource-Limited Settings (RLSs) and the Ibero-American Network of Pharmacogenetics and Pharmacogenomics (RIBEF). It was aimed to share and evaluate investigators' experiences on challenges and opportunities on clinical research and pharmacogenetics.
METHODS: A total of 33 members from 22 countries participated in 2 sessions: RIBEF studies on population pharmacogenetics about the relationship between ancestry with relevant drug-related genetic polymorphisms and the relationship between genotype and phenotype in Native Americans (session 1) and case examples of clinical studies in RLSs from Asia (cancer), America (diabetes and women health), and Africa (malaria) in which the participants were asked to answer in free text their experiences on challenges and opportunities to solve the problems (session 2). Later, a discourse analysis grouping common themes by affinity was conducted.
FINDINGS: The main result of session 1 was that the pharmacogenetics-related ancestry of the population should be considered when designing clinical studies in RLSs. In session 2, 21 challenges and 20 opportunities were identified. The social aspects represent the largest proportion of the challenges (43%) and opportunities (55%), and some of them seem to be common.
IMPLICATIONS: The main discussion points were gathered in the Declaration of Mérida/T'Hó and announced on the Parliament of Extremadura during the CIOMS-RIBEF meeting in 4 of the major Latin American autochthonous languages (Náhualth, Mayan, Miskito, and Kichwa). The declaration highlighted the following: (1) the relevance of population pharmacogenetics, (2) the sociocultural contexts (interaction with traditional medicine), and (3) the education needs of research teams for clinical research in vulnerable and autochthonous populations.
PMID: 32782137 [PubMed - as supplied by publisher]
Genome-wide sequence analyses of ethnic populations across Russia.
Genome-wide sequence analyses of ethnic populations across Russia.
Genomics. 2020 01;112(1):442-458
Authors: Zhernakova DV, Brukhin V, Malov S, Oleksyk TK, Koepfli KP, Zhuk A, Dobrynin P, Kliver S, Cherkasov N, Tamazian G, Rotkevich M, Krasheninnikova K, Evsyukov I, Sidorov S, Gorbunova A, Chernyaeva E, Shevchenko A, Kolchanova S, Komissarov A, Simonov S, Antonik A, Logachev A, Polev DE, Pavlova OA, Glotov AS, Ulantsev V, Noskova E, Davydova TK, Sivtseva TM, Limborska S, Balanovsky O, Osakovsky V, Novozhilov A, Puzyrev V, O'Brien SJ
Abstract
The Russian Federation is the largest and one of the most ethnically diverse countries in the world, however no centralized reference database of genetic variation exists to date. Such data are crucial for medical genetics and essential for studying population history. The Genome Russia Project aims at filling this gap by performing whole genome sequencing and analysis of peoples of the Russian Federation. Here we report the characterization of genome-wide variation of 264 healthy adults, including 60 newly sequenced samples. People of Russia carry known and novel genetic variants of adaptive, clinical and functional consequence that in many cases show allele frequency divergence from neighboring populations. Population genetics analyses revealed six phylogeographic partitions among indigenous ethnicities corresponding to their geographic locales. This study presents a characterization of population-specific genomic variation in Russia with results important for medical genetics and for understanding the dynamic population history of the world's largest country.
PMID: 30902755 [PubMed - indexed for MEDLINE]
Ligand stabilization and effect on unfolding by polymorphism in human flavin-containing monooxygenase 3.
Ligand stabilization and effect on unfolding by polymorphism in human flavin-containing monooxygenase 3.
Int J Biol Macromol. 2020 Aug 08;:
Authors: Catucci G, Aramini D, Sadeghi SJ, Gilardi G
Abstract
Pharmacogenomics is a powerful tool to prevent adverse reactions caused by different response of individuals to drug administration. Single nucleotide polymorphisms (SNPs) represent up to 90% of genetic variations among individuals. Drug metabolizing enzymes are highly polymorphic therefore the kinetic parameters of their catalytic reactions can be significantly influenced. This work reports on the unfolding process of a phase I drug metabolizing enzyme, human flavin-containing monooxygenase 3 (hFMO3) and its single nucleotide polymorphic variants (SNPs) V257M, E158K and E308G. Differential scanning calorimetry (DSC) indicates that the thermal denaturation of the enzyme is irreversible. The melting temperature (Tm) for the (Wild Type) WT and its polymorphic variants is found to be in a range from 46 °C to 50 °C. Also the activation energies of unfolding (Ea) show no significant differences among all proteins investigated (290-328 KJ/mol), except for the E308G variant that showed a significantly higher Ea of 412 KJ/mol. The presence of the bound NADP+ cofactor is found to stabilize all the variants by shifting the main Tm by 4-5 °C for all the proteins, exception made for E308G where no changes are observed. Isothermal titration calorimetry (ITC) was used to characterize the interaction of the protein with NADP+ in terms of dissociation constant (Kd), enthalpy (ΔH) and entropy (ΔS). Kd values of 1.6 and 0.7 μM, ΔH of -13.9 Kcal/mol and -16.8 Kcal/mol, ΔS of -20.5 cal/mol/deg, and -28.5 cal/mol/deg were found for V257M and E158K respectively. E308G was found to be unable to bind the NADP+ cofactor, a result that is in line with the Tm results. Circular dichroism also confirmed an overall lower stability of E308G, while NADP+ was found to give a strong positive shift of the Tm stabilizing the structure of E158K (46.2 to 50.6 °C). Previous data highlighted significant differences in terms of activity among the SNPs of hFMO3. In this work a minor impact of the SNPs was found on the stability of the enzyme in the ligand free form, except for E308G, whereas the binding of NADP+ reveals major differences among WT and polymorphic variants that are all measurable in terms of heat capacity, enthalpy and secondary structure content. These data provide the first direct evidence of ligand stabilization effects on hFMO3 that can explain the differences observed in catalytic efficiencies and serve as the starting point for the development of inhibitors of this enzyme.
PMID: 32781122 [PubMed - as supplied by publisher]
Pharmacogenetics for severe adverse drug reactions induced by molecular-targeted therapy.
Pharmacogenetics for severe adverse drug reactions induced by molecular-targeted therapy.
Cancer Sci. 2020 Aug 11;:
Authors: Udagawa C, Zembutsu H
Abstract
Molecular-targeted drugs specifically interfere with molecules that are frequently overexpressed or mutated in cancer cells. As such, these drugs are generally considered to precisely attack cancer cells, thereby inducing fewer adverse drug reactions (ADRs). However, molecular-targeted drugs can still cause characteristic ADRs that, although rarely severe, can be life-threatening. Therefore, it is becoming increasingly important to be able to predict which patients are at risk of developing ADRs after treatment with molecular-targeted therapy. The emerging field of pharmacogenetics aims to better distinguish the genetic variants associated with drug toxicity and efficacy to improve the selection of therapeutic strategies for each genetic profile. Here, we provide an overview of the current reports on the relation between genetic variants and molecular-targeted drug-induced severe ADRs in oncology.
PMID: 32780457 [PubMed - as supplied by publisher]
Clinical Pharmacogenetics Implementation Consortium (CPIC) Guideline for CYP2C9 and HLA-B Genotypes and Phenytoin Dosing: 2020 Update.
Clinical Pharmacogenetics Implementation Consortium (CPIC) Guideline for CYP2C9 and HLA-B Genotypes and Phenytoin Dosing: 2020 Update.
Clin Pharmacol Ther. 2020 Aug 11;:
Authors: Karnes JH, Rettie AE, Somogyi AA, Huddart R, Fohner AE, Formea CM, Lee MTM, Llerena A, Whirl-Carrillo M, Klein TE, Phillips EJ, Mintzer S, Gaedigk A, Caudle KE, Callaghan JT
Abstract
Phenytoin is an antiepileptic drug with a narrow therapeutic index and large inter-patient pharmacokinetic variability, partly due to genetic variation in CYP2C9. Furthermore, the variant allele HLA-B*15:02 is associated with an increased risk of Stevens-Johnson syndrome and toxic epidermal necrolysis in response to phenytoin treatment. We summarize evidence from the published literature supporting these associations and provide therapeutic recommendations for the use of phenytoin based on CYP2C9 and/or HLA-B genotypes (updates on cpicpgx.org).
PMID: 32779747 [PubMed - as supplied by publisher]
Effect of drug metabolizing enzymes and transporters in Thai colorectal cancer patients treated with irinotecan-based chemotherapy.
Effect of drug metabolizing enzymes and transporters in Thai colorectal cancer patients treated with irinotecan-based chemotherapy.
Sci Rep. 2020 Aug 10;10(1):13486
Authors: Atasilp C, Chansriwong P, Sirachainan E, Reungwetwattana T, Sirilerttrakul S, Chamnanphon M, Puangpetch A, Sukasem C
Abstract
Genetic polymorphisms in drug metabolizing enzymes and drug transporters may affect irinotecan toxicity. Although genetic polymorphisms have been shown to influence the irinotecan toxicity, data are limited in Thai population. Thus, the aim of this study was to assess the allele and genotype frequencies and the relationship between CYP3A4/5, DPYD, UGT1A1, ABCB1, and ABCC2 genetic variations and irinotecan-induced toxicity in Thai colorectal cancer patients. One hundred and thirty-two patients were genotyped, and the effect of genetic variations on irinotecan-induced toxicity was assessed in 66 patients who received irinotecan-based chemotherapy. Allele frequencies of ABCB1 c.1236C > T, ABCB1 c.3435C > T, ABCC2 c.3972C > T, ABCG2 c.421C > A, CYP3A4*1B, CYP3A4*18, CYP3A5*3, DPYD*5, UGT1A1*28, and UGT1A1*6 were 0.67, 0.43, 0.23, 0.27, 0.01, 0.02, 0.64, 0.19, 0.16, and 0.09, respectively. DPYD*2A and DPYD c.1774C > T variants were not detected in our study population. The ABCC2 c.3972C > T was significantly associated with grade 1-4 neutropenia (P < 0.012) at the first cycle. Patients carrying both UGT1A1*28 and *6 were significantly associated with severe neutropenia at the first (P < 0.001) and second (P = 0.017) cycles. In addition, patients carrying UG1A1*28 and *6 had significantly lower absolute neutrophil count (ANC) nadir at first (P < 0.001) and second (P = 0.001) cycles. This finding suggests that UGT1A1*28, *6, and ABCC2 c.3972C > T might be an important predictor for irinotecan-induced severe neutropenia.
PMID: 32778670 [PubMed - in process]
A case for genotype-guided de-escalation of antiplatelet therapy after percutaneous coronary angioplasty.
A case for genotype-guided de-escalation of antiplatelet therapy after percutaneous coronary angioplasty.
Future Cardiol. 2019 07;15(4):251-254
Authors: Cavallari LH, Lee CR
PMID: 31385522 [PubMed - indexed for MEDLINE]
[Recommendations for performing pharmacogenetic tests in drug monographs in Canada, France and the United States].
[Recommendations for performing pharmacogenetic tests in drug monographs in Canada, France and the United States].
Ann Pharm Fr. 2020 Aug 07;:
Authors: Marquot G, Frison C, Lebel D, Bussières JF, Métras MÉ
Abstract
INTRODUCTION: Pharmacogenetics represents an opportunity in pharmaceutical practice. There are many documentary resources to support the pharmacist's work in this area.
OBJECTIVE: To compare the recommendations for carrying out pharmacogenetic tests from a documentary source in three countries: the United States, Canada and United France.
METHOD: This is a cross-sectional descriptive study. Based on the recommendations of the Clinical Pharmacogenetics Implementation Consortium type A (the highest threshold justifying the use of a pharmacogenetic test), we identified the drug-gene pairs (23 pairs). The proposed pairs involve a total of 47 separate international nonproprietary names and 18 genes. For each drug-gene pair, we consulted three open access documentary sources (one for each target country), namely the pharmaceutical products database (DPD) for Canada, the product characteristic summary (SPC) for France and the Micromedex® monograph (IBM, Truven Health Analytics, MI, USA) for the United States. The study was conducted in September 2019.
RESULTS: About a third of the drug-gene pairs are explicitly mentioned by the gene to be targeted and by the test suggested in the documentary sources consulted. Of the 23 pairs identified by the CPIC, thirteen pairs contain "consistent" recommendations between the three documentary sources.
CONCLUSION: There is great heterogeneity regarding the recommendations for pharmacogenetic tests from three documentary sources used by pharmacists to monitor drug therapy in the United States, Canada and France. There is an urgent need to standardize the requirements for nomenclature, description and the need to use pharmacogenetic tests to ensure proper use of drugs and these tests in the clinic.
PMID: 32777298 [PubMed - as supplied by publisher]
Pain pharmacogenetics.
Pain pharmacogenetics.
Drug Metab Pers Ther. 2020 Aug 04;:
Authors: Slepukhina MA, Ivashchenko DV, Sheina MA, Muradian AA, Blagovestnov DA, Sychev DA
Abstract
Pain is a significant problem in medicine. The use of PGx markers to personalize postoperative analgesia can increase its effectiveness and avoid undesirable reactions. This article describes the mechanisms of nociception and antinociception and shows the pathophysiological mechanisms of pain in the human body. The main subject of this article is pharmacogenetic approach to the selection of anesthetics. Current review presents data for local and general anesthetics, opioids, and non-steroidal anti-inflammatory drugs. None of the anesthetics currently has clinical guidelines for pharmacogenetic testing. This literature review summarizes the results of original research available, to date, and draws attention to this area.
PMID: 32776897 [PubMed - as supplied by publisher]