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D2 dopamine receptor gene (DRD2) Taq1A (rs1800497) affects bone density.


ABSTRACT: Schizophrenia patients are susceptible to lower bone mineral density (BMD). However, studies exploring the genetic effects are lacking. Genes that affect the activity of antipsychotics may be associated with BMD, particularly in patients receiving long-term antipsychotic treatment. We aimed to explore the relationship between the dopamine receptor D2 (DRD2) gene Taq1A (rs1800497) polymorphism and BMD in chronic schizophrenia patients. We recruited schizophrenia patients (n?=?47) and healthy controls (n?=?39) from a medical center in Taiwan and collected data that may affect BMD. Patients' BMD was measured by dual-energy X-ray absorptiometer (DEXA). DRD2 rs1800497 was genotyped through polymerase chain reaction-Restriction Fragment Length Polymorphism (PCR-RFLP). Among all participants, subjects with DRD2 rs1800497(T;T) allele had lower DEXA T score and DEXA Z score compared to those with rs1800497(C;T) and rs1800497(C;C) alleles (p?=?0.008, 0.003, respectively). In schizophrenia patients, subjects with rs1800497(T;T) allele also had lower DEXA Z score compared to the other two alleles (p?=?0.045). Our findings suggest that individuals with the DRD2 rs1800497(T;T) had lower BMD than those with the rs1800497(C;T) and rs1800497(C;C) genotypes. Therefore, genes should be considered as one of the risk factors of lower BMD.

SUBMITTER: Chiang TI 

PROVIDER: S-EPMC7414035 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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D2 dopamine receptor gene (DRD2) Taq1A (rs1800497) affects bone density.

Chiang Ting-I TI   Lane Hsien-Yuan HY   Lin Chieh-Hsin CH  

Scientific reports 20200806 1


Schizophrenia patients are susceptible to lower bone mineral density (BMD). However, studies exploring the genetic effects are lacking. Genes that affect the activity of antipsychotics may be associated with BMD, particularly in patients receiving long-term antipsychotic treatment. We aimed to explore the relationship between the dopamine receptor D<sub>2</sub> (DRD2) gene Taq1A (rs1800497) polymorphism and BMD in chronic schizophrenia patients. We recruited schizophrenia patients (n = 47) and h  ...[more]

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