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C Thambiah S, Meor Anuar Shuhaili MFR, Chew BH, Samsudin IN, Abdul Rahman H, Stanslas J, Hasan S, Ahmad Z. A pilot study on the association between SLCO1B1 RS4363657 polymorphism and muscle adverse events in adults with newly diagnosed dyslipidaemia who were prescribed a statin: the Malaysian primary health care cohort. Biomarkers 2019; 24:659-665. [PMID: 31342800 DOI: 10.1080/1354750x.2019.1648554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Statin, the first-line treatment for dyslipidaemia, may have suboptimal adherence due to its associated muscle adverse events. These data, however, remain limited. Aim: To determine the association of serum creatine kinase (CK) and SLCO1B1 rs4363657 polymorphism with statin-associated muscle adverse events (SAMAE) among dyslipidaemia participants. Methods: This was a prospective cohort study at government health clinics involving newly diagnosed adults with dyslipidaemia. SAMAE were recorded based on the patient's complaint after a month on statin. CK was taken at baseline and follow-up. Genetic profiling was performed for SLCO1B1 rs4363657 polymorphism. Results: Among 118 participants, majority were Malay (72%) males (61%) with a mean age of 49 ± 12.2 years old and prescribed lovastatin (61.9). There was a significant association between statin types (lovastatin and simvastatin) and SAMAE (p = 0.0327); no significant association noted between CK and SAMAE (p = 0.5637). The SLCO1B1 rs4363657 polymorphism was significantly associated SAMAE (p < 0.0001). Conclusions: In this first pilot study of a multiethnic Malaysian population, the incidence of SAMAE was 18.6%. SAMAE were significantly higher in subjects on lovastatin compared to simvastatin. SLCO1B1 rs4363657 polymorphism was a significant risk factor for SAMAE.
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Affiliation(s)
- Subashini C Thambiah
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | | | - Boon How Chew
- Department of Family Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Intan Nureslyna Samsudin
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Hejar Abdul Rahman
- Department of Community Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Johnson Stanslas
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Shariful Hasan
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Zalinah Ahmad
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
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Hoosain N, Pearce B, Jacobs C, Benjeddou M. Mapping SLCO1B1 Genetic Variation for Global Precision Medicine in Understudied Regions in Africa: A Focus on Zulu and Cape Admixed Populations. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2018; 20:546-54. [PMID: 27631194 DOI: 10.1089/omi.2016.0115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The U.S. President Barack Obama has announced, in his State of the Union address on January 20, 2015, the Precision Medicine Initiative, a US$215-million program. For global precision medicine to become a reality, however, biological and environmental "variome" in previously understudied populations ought to be mapped and catalogued. Chief among the molecular targets that warrant global mapping is the organic anion-transporting polypeptide 1B1 (OATP1B1), encoded by solute carrier organic anion transporter family member 1B1 (SLCO1B1), a hepatic uptake transporter predominantly expressed in the basolateral side of hepatocytes. Human OATP1B1 plays a crucial role in the transport of a wide variety of substrates. This includes endogenous compounds such as bile salts as well as medicines, including benzylpenicillin, methotrexate, pravastatin, and rifampicin, and natural toxins microcystin and phalloidin. Genetic variations observed in the SLCO1B1 gene have been associated with altered in vitro and in vivo OATP1B1 transport activity, and consequently influencing patients' response to medicines, toxins, and susceptibility to common complex diseases. Well-characterized haplotypes, *5 (RS4149056C) and *15 (RS4149056T), have been associated with a strikingly reduced uptake of multiple OATP1B1 substrates, including estrone-3-sulfate, estradiol-17β-d-glucuronide, atorvastatin, cerivastatin, pravastatin, and rifampicin. In particular, RS4149056C is observed in 60% of the Cape admixed (CA) population and is associated with increased plasma concentrations of many statins as well as fexofenadine and repaglinide. We designed and optimized a SNaPshot minisequencing panel to characterize the variants of relevance for precision medicine in the clinic. We report here the first study on allele and genotype frequencies for 10 nonsynonymous, 4 synonymous, and 6 intronic single-nucleotide polymorphisms of SLCO1B1 in the Zulu and CA populations of South Africa. These variants are further contextualized here, in relation to their potential clinical relevance. These observations collectively contribute to current efforts to advance global precision medicine in understudied populations and resource-limited regions of the world.
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Affiliation(s)
- Nisreen Hoosain
- Pharmacogenetics Laboratory, Department of Biotechnology, Faculty of Natural Science, University of the Western Cape , Bellville, South Africa
| | - Brendon Pearce
- Pharmacogenetics Laboratory, Department of Biotechnology, Faculty of Natural Science, University of the Western Cape , Bellville, South Africa
| | - Clifford Jacobs
- Pharmacogenetics Laboratory, Department of Biotechnology, Faculty of Natural Science, University of the Western Cape , Bellville, South Africa
| | - Mongi Benjeddou
- Pharmacogenetics Laboratory, Department of Biotechnology, Faculty of Natural Science, University of the Western Cape , Bellville, South Africa
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Cham S, Koslik HJ, Golomb BA. Mood, Personality, and Behavior Changes During Treatment with Statins: A Case Series. DRUG SAFETY - CASE REPORTS 2015; 3:1. [PMID: 27747681 PMCID: PMC5005588 DOI: 10.1007/s40800-015-0024-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Psychiatric adverse drug reactions (ADRs) have been reported with statin use, but the literature regarding statin-associated mood/behavioral changes remains limited. We sought to elicit information germane to natural history and characteristics of central nervous system/behavioral changes in apparent connection with statin and/or cholesterol-lowering drug use, and delineate mechanisms that may bear on an association. Participants (and/or proxies) self-referred with behavioral and/or mood changes in apparent association with statins completed a survey eliciting cholesterol-lowering drug history, character and impact of behavioral/mood effect, time-course of onset and recovery in relation to drug use/modification, co-occurrence of recognized statin-associated ADRs, and factors relevant to ADR causality determination. Naranjo presumptive ADR causality criteria were assessed. Participants (n = 12) reported mood/behavior change that commenced following statin initiation and persisted or progressed with continued use. Reported problems included violent ideation, irritability, depression, and suicide. Problems resolved with drug discontinuation and recurred with rechallenge where attempted. Eight met presumptive criteria for “probable” or “definite” causality; others had additional factors not considered in Naranjo criteria that bear on casual likelihood. (1) Simvastatin 80 mg was followed in 5 days by irritability/depression culminating in suicide in a man in his 40s (Naranjo criteria: possible causality). (2) Simvastatin 10 mg was followed within 2 weeks by depression in a woman in her 50s (probable causality). (3) Atorvastatin 20 mg was followed in ~1 month by depression and irritability/aggression in a male in his 50s (probable causality). (4) Atorvastatin 10 mg was followed in several months by aggression/irritability and depression culminating in suicide in a man in his 40s (possible causality). (5) Fenofibrate + rosuvastatin (unknown dose), later combined with atorvastatin were followed in 1 month by aggression/irritability in a male in his 30s (probable causality). (6) Lovastatin (unknown dose and time-course to reaction) was followed by depression, dyscontrol of bipolar disorder, and suicide attempts in a male in his 40s (possible causality). (7) Atorvastatin 20 mg was followed within 2 weeks by cognitive compromise, and nightmares, depression, and anxiety culminating in suicide in a man in his teens (definite causality). (8) Simvastatin 10 mg was followed (time-course not recalled) by depression, aggression/irritability culminating in suicide in a man in his 60s (possible causality). (9) Simvastatin 20 mg then atorvastatin 10 mg were followed (time-course not provided) by irritability/aggression in a man in his 60s (definite causality). (10) Atorvastatin 10 then 20 then 40 mg were followed shortly after the dose increase by violent ideation and anxiety in a man in his 30s (probable causality). (11) Atorvastatin 20 mg and then simvastatin 20 mg were followed in 2 weeks by aggression/irritability in a man in his 50s (definite causality). (12) Lovastatin, rosuvastatin, atorvastatin, and simvastatin at varying doses were followed as quickly as 1 day by aggression, irritability, and violent ideation in a man in his 40s (definite causality). Most had risk factors for statin ADRs, and co-occurrence of other, recognized statin ADRs. ADRs had implications for marriages, careers, and safety of self and others. These observations support the potential for adverse mood and behavioral change in some individuals with statin use, extend the limited literature on such effects, and provide impetus for further investigation into these presumptive ADRs. Potential mechanisms are reviewed, including hypothesized mechanisms related to oxidative stress and bioenergetics.
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Affiliation(s)
- Stephanie Cham
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive # 0995, La Jolla, CA, 92093-0995, USA.,Department of Obstetrics and Gynecology, Columbia New York Presbyterian, New York, NY, 10032, USA
| | - Hayley J Koslik
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive # 0995, La Jolla, CA, 92093-0995, USA
| | - Beatrice A Golomb
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive # 0995, La Jolla, CA, 92093-0995, USA.
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Nagy A, Sipeky C, Szalai R, Melegh BI, Matyas P, Ganczer A, Toth K, Melegh B. Marked differences in frequencies of statin therapy relevant SLCO1B1 variants and haplotypes between Roma and Hungarian populations. BMC Genet 2015; 16:108. [PMID: 26334733 PMCID: PMC4559300 DOI: 10.1186/s12863-015-0262-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/12/2015] [Indexed: 01/26/2023] Open
Abstract
Background SLCO1B1 polymorphisms are relevant in statin pharmacokinetics. Aim of this study was to investigate the genetic variability and haplotype profile of SLCO1B1 polymorphisms in Roma and Hungarian populations. Genotypes of 470 Roma and 442 Hungarian subjects for c.388A > G, c.521T > C and c.1498-1331T > C polymorphisms were determined by PCR-RFLP assay. Using these SNPs eight different haplotypes could be differentiated. Results Differences were found between Roma and Hungarians in SLCO1B1 388AA (24.5 vs. 45.5 %), GG (33.4 vs. 17.9 %) genotypes, AG + GG (75.5 vs. 54.5 %) carriers, in G allele frequency (0.545 vs. 0.362), respectively (p < 0.001). The most common SLCO1B1 haplotype was the ht8 (GTT) both in Roma (43.6 %) and in Hungarian (59.1 %) samples. The ht6 (GCT) was not present in Roma population samples Haplotype analyses showed striking differences between the Roma and Hungarian samples in ht4 (ATT, 37.2 % vs 20.8 %), ht5 (GCC, 1.15 % vs. 3.62 %) and ht8 (GTT, 43.6 % vs. 59.1 %) haplotypes (p < 0.01), respectively. Linkage disequilibrium analysis showed that the studied variants are in different linkage disequilibrium patterns depending on the ethnic origin. Conclusions Similarly to Caucasians the 388G is the minor allele in Hungarians, however, in Roma the 388A was found to be the minor allele contrary to Indians (India). The minor allele frequency of 521T > C and 1498-1331T > C SNPs are almost three times higher in Romas than in Indians (Singapore and Gujarati, respectively). Observed allele frequency for 1498-1331T > C polymorphism reflects the measured average European rates in Hungarians. The results can be applied in population specific treatment algorithms when developing effective programs for statin therapy.
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Affiliation(s)
- Agnes Nagy
- 1st Department of Internal Medicine, University of Pecs, Pecs, Hungary.
| | - Csilla Sipeky
- Department of Medical Genetics, Clinical Centre, University of Pecs, Szigeti 12, H-7624, Pecs, Hungary. .,Janos Szentagothai Research Centre, Human Genetic and Pharmacogenomic Research Group, University of Pecs, Pecs, Hungary.
| | - Renata Szalai
- Department of Medical Genetics, Clinical Centre, University of Pecs, Szigeti 12, H-7624, Pecs, Hungary. .,Janos Szentagothai Research Centre, Human Genetic and Pharmacogenomic Research Group, University of Pecs, Pecs, Hungary.
| | - Bela Imre Melegh
- Department of Medical Genetics, Clinical Centre, University of Pecs, Szigeti 12, H-7624, Pecs, Hungary.
| | - Petra Matyas
- Department of Medical Genetics, Clinical Centre, University of Pecs, Szigeti 12, H-7624, Pecs, Hungary.
| | - Alma Ganczer
- Department of Medical Genetics, Clinical Centre, University of Pecs, Szigeti 12, H-7624, Pecs, Hungary.
| | - Kalman Toth
- 1st Department of Internal Medicine, University of Pecs, Pecs, Hungary.
| | - Bela Melegh
- Department of Medical Genetics, Clinical Centre, University of Pecs, Szigeti 12, H-7624, Pecs, Hungary. .,Janos Szentagothai Research Centre, Human Genetic and Pharmacogenomic Research Group, University of Pecs, Pecs, Hungary.
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Genealogical analysis as a new approach for the investigation of drug intolerance heritability. Eur J Hum Genet 2013; 22:916-22. [PMID: 24281370 DOI: 10.1038/ejhg.2013.270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 09/25/2013] [Accepted: 10/24/2013] [Indexed: 01/14/2023] Open
Abstract
Genealogical analysis has proven a useful method to understand the origins and frequencies of hereditary diseases in many populations. However, this type of analysis has not yet been used for the investigation of drug intolerance among patients suffering from inherited disorders. This study aims to do so, using data from familial hypercholesterolemia (FH) patients receiving high doses of statins. The objective is to measure and compare various genealogical parameters that could shed light on the origins and heritability of muscular intolerance to statins using FH as a model. Analysis was performed on 224 genealogies from 112 FH subjects carrying either the low-density lipoprotein receptor (LDLR) prom_e1 deletion>15 kb (n=28) or c.259T>G (p.Trp87Gly) (n=84) mutations and 112 non-FH controls. Number of ancestors, geographical origins and genetic contribution of founders, inbreeding and kinship coefficients were calculated using the S-Plus-based GENLIB software package. For both mutations, repeated occurrences of the same ancestors are more frequent among the carriers' genealogies than among the controls', but no difference was observed between tolerant and intolerant subjects. Founders who may have introduced both mutations in the population appear with approximately the same frequencies in all genealogies. Kinship coefficients are higher among carriers, with no difference according to statins tolerance. Inbreeding coefficients are slightly lower among >15-kb deletion carriers than among c.259 T>G carriers, but the differences between tolerants and intolerants are not significant. These findings suggest that although muscular intolerance to statins shows a family aggregation, it is not transmitted through the same Mendelian pattern as LDLR mutations.
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Lux R, Wärntges S, Bergner S, Kütting B. [Improvement of medication safety by identification of genetically predisposed subjects. Personalized clinical strategies and regulatory advices]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2013; 56:1545-56. [PMID: 24170084 DOI: 10.1007/s00103-013-1827-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Because adverse drug events (ADEs) have a high socio-economic impact there is an urgent need for effective prevention. In addition to process-related avoidable errors personalised approaches for the prevention of ADEs should also focus on genetic polymorphisms as potential causative agents. AIM Using five case reports as examples therapeutic modalities are described to illustrate the clinical impact of prospective testing aimed at estimating the individual risk of susceptible subjects. MATERIAL AND METHODS The role of the HLA system, the cytochrome P450 family, other metabolic enzymes and transport proteins are described to illustrate the broad range of genetic susceptibility. It is shown, why, when and for whom pretherapeutic tests on genetic polymorphisms are recommended to reduce the risk of ADEs. RESULTS The determination of genetic susceptibility is already implemented in clinical practice prior to (1) carbamazepine therapy in south-east Asians and (2) treatment with abacavir independent of ethnicity. Before prescribing carbamazepine or abacavir, it is recommended that therapeutic decisions be based on these test results. CONCLUSION The broad application of personalised medicine used as an effective tool for minimizing ADE risks is limited by the evidence-based benefit for the patient on the one hand and the costs of the test on the other hand.
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Affiliation(s)
- R Lux
- Bundesinstitut für Arzneimittel und Medizinprodukte (BfArM), Bonn, Deutschland
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Mancini GBJ, Tashakkor AY, Baker S, Bergeron J, Fitchett D, Frohlich J, Genest J, Gupta M, Hegele RA, Ng DS, Pearson GJ, Pope J. Diagnosis, prevention, and management of statin adverse effects and intolerance: Canadian Working Group Consensus update. Can J Cardiol 2013; 29:1553-68. [PMID: 24267801 DOI: 10.1016/j.cjca.2013.09.023] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 09/24/2013] [Accepted: 09/24/2013] [Indexed: 12/21/2022] Open
Abstract
The Proceedings of a Canadian Working Group Consensus Conference, first published in 2011, provided a summary of statin-associated adverse effects and intolerance and management suggestions. In this update, new clinical studies identified since then that provide further insight into effects on muscle, cognition, cataracts, diabetes, kidney disease, and cancer are discussed. Of these, the arenas of greatest controversy pertain to purported effects on cognition and the emergence of diabetes during long-term therapy. Regarding cognition, the available evidence is not strongly supportive of a major adverse effect of statins. In contrast, the linkage between statin therapy and incident diabetes is more firm. However, this risk is more strongly associated with traditional risk factors for new-onset diabetes than with statin itself and any possible negative effect of new-onset diabetes during statin treatment is far outweighed by the cardiovascular risk reduction benefits. Additional studies are also discussed, which support the principle that systematic statin rechallenge, and lower or intermittent statin dosing strategies are the main methods for dealing with suspected statin intolerance at this time.
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Affiliation(s)
- G B John Mancini
- Division of Cardiology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
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