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Aim: To explore the association between dose-related adverse drug reactions (ADRs) of atorvastatin and polymorphisms of ABCG2, taking into account the influence of CYP3A4 and SLCO1B1 genes., Materials & Methods: Sixty patients who experienced atorvastatin dose-related ADRs and 90 matched patients without ADRs were enrolled in the study. Genotyping for ABCG2 421C > A, CYP3A4*22, SLCO1B1 388A > G, SLCO1B1 521T > C variants was performed by real-time PCR., Results: Patients with ABCG2 421CA or AA genotypes had 2.9 times greater odds of developing atorvastatin dose-dependent ADRs (OR: 2.91; 95% CI: 1.22-6.95; p = 0.016) than those with ABCG2 421CC genotype. After adjustments for clinical and genetic risk factors, ABCG2 remained a statistically significant predictor of adverse drug reactions (OR: 2.75; 95% CI: 1.1-6.87; p = 0.03;). Also, carriers of SLCO1B1 521 TC or CC genotypes had 2.3 greater odds (OR: 1.03-4.98; 95% CI: 1.03-4.98; p = 0.043) of experiencing ADRs caused by atorvastatin in comparison with carriers of SLCO1B1 521 TT genotype., Conclusion: Our study demonstrated an association between atorvastatin-induced ADRs and genetic variants in the ABCG2 gene.

These guidelines provide a short summary of recommendations on Pompe disease, how to diagnose this disease, management of adult patients with this disease, follow-up of the patients and recommendations on therapy and genetic testing. Early diagnosis and management of patients with Pompe disease requires a multidisciplinary approach of several different experts. These guidelines were produced by the Division of Metabolic Diseases, Department of Internal Medicine, University Hospital Center Zagreb which is a Referral expert center for rare and metabolic diseases of the Ministry of Health of the Republic of Croatia. They were endorsed by the Croatian Society for Rare Diseases, Croatian Medical Association.These are the first guidelines published in Croatia on diagnosis, treatment and follow-up of Pompe disease.