Journal
JOURNAL OF CLINICAL MEDICINE
Volume 12, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/jcm12175621
Keywords
bipolar disorder; chronotype; eveningness; metabolic parameters; cardiovascular risk
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This study investigated the relationship between chronotype and cardiometabolic parameters in patients with bipolar disorder. The results showed that patients with an eveningness chronotype had higher body mass index, total and low-density lipoprotein cholesterol compared to those with an intermediate or morning chronotype. Furthermore, the atherogenic coefficient and Castelli risk index were found to be higher in bipolar patients with an evening chronotype. Investigating the relationship between chronotype and obesity and cardiovascular risk is important for improving clinical and therapeutic approaches and reducing mortality in bipolar disorder.
Cardiometabolic alterations are very common in bipolar disorder (BD). The aim of this study was to investigate the relationship between chronotype and cardiometabolic parameters in patients with a primary diagnosis of BD. This study is an observational clinical investigation including 170 subjects consecutively admitted to the Psychiatric Inpatient Unit of the IRCCS Ospedale Policlinico San Martino (Genoa, Italy), recruited over a period of 48 months. A psychometric tool assessing chronotype was administered and blood tests were performed. Furthermore, the atherogenic coefficient ((total cholesterol-HDL cholesterol)/HDL cholesterol), and Castelli risk index-I (total cholesterol/HDL cholesterol) and -II (LDL cholesterol/HDL cholesterol) were calculated. Patients with BD and an eveningness chronotype showed a higher body mass index, total and low-density lipotrotein cholesterol compared to patients with BD and an intermediate or morning chronotype. Furthermore, the Atherogenic Coefficient and Castelli Risk-Index I-II were found to be higher in bipolar patients with an evening chronotype. The role of chronotype in the development of obesity and cardiovascular risk is, therefore, a relationship worth being investigated, especially in the context of BD, to ameliorate the clinical and therapeutic approach, aiming at increasing the quality of life and reducing the mortality.
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