Association of serum uric acid levels with suicide risk in female patients with major depressive disorder: a comparative cross-sectional study
Background: Individuals with major depressive disorder (MDD) have a high suicide risk. Some evidence suggests that uric acid (UA) may be involved in the pathophysiology of MDD. The purpose of this study was to evaluate whether serum UA levels were associated with suicide risk in MDD patients.
Methods: One hundred four female patients with MDD (52 patients with suicide risk and 52 patients without suicide risk) and 52 healthy individuals were included in this study. The suicide risk was evaluated by Mini International Neuropsychiatric Interview (M.I.N.I.). Fasting serum levels of UA, as well as glucose, lipid and renal function indicators were measured.
Results: Serum UA levels in MDD patients with suicide risk (245.01 ± 55.44 μmol/L) were significantly lower than those in MDD patients without suicide risk (274.17 ± 72.65 μmol/L) (p = 0.017) and healthy controls (271.42 ± 55.25 μmol/L) (p = 0.030). There was no difference in serum UA levels between the MDD patients without suicide risk and healthy controls (p = 0.821). Binary logistic regression analysis revealed a significant relationship between suicide risk and decreased serum UA levels (OR = 0.989, p = 0.010) in MDD patients.
Conclusion: Decreased serum UA levels were associated with suicide risk in MDD patients. Purinergic system dysfunction may be involved in the neurobiological basis of suicide risk in these patients.
On 19 Sep, 2020
On 18 Sep, 2020
Posted 12 Aug, 2020
On 14 Sep, 2020
Received 13 Sep, 2020
On 14 Aug, 2020
On 12 Aug, 2020
Received 12 Aug, 2020
Invitations sent on 11 Aug, 2020
On 06 Aug, 2020
On 05 Aug, 2020
On 05 Aug, 2020
On 23 Jun, 2020
Received 20 Jun, 2020
On 13 Apr, 2020
Received 27 Feb, 2020
On 13 Feb, 2020
Invitations sent on 10 Dec, 2019
On 21 Nov, 2019
On 20 Nov, 2019
On 20 Nov, 2019
On 20 Nov, 2019
Association of serum uric acid levels with suicide risk in female patients with major depressive disorder: a comparative cross-sectional study
On 19 Sep, 2020
On 18 Sep, 2020
Posted 12 Aug, 2020
On 14 Sep, 2020
Received 13 Sep, 2020
On 14 Aug, 2020
On 12 Aug, 2020
Received 12 Aug, 2020
Invitations sent on 11 Aug, 2020
On 06 Aug, 2020
On 05 Aug, 2020
On 05 Aug, 2020
On 23 Jun, 2020
Received 20 Jun, 2020
On 13 Apr, 2020
Received 27 Feb, 2020
On 13 Feb, 2020
Invitations sent on 10 Dec, 2019
On 21 Nov, 2019
On 20 Nov, 2019
On 20 Nov, 2019
On 20 Nov, 2019
Background: Individuals with major depressive disorder (MDD) have a high suicide risk. Some evidence suggests that uric acid (UA) may be involved in the pathophysiology of MDD. The purpose of this study was to evaluate whether serum UA levels were associated with suicide risk in MDD patients.
Methods: One hundred four female patients with MDD (52 patients with suicide risk and 52 patients without suicide risk) and 52 healthy individuals were included in this study. The suicide risk was evaluated by Mini International Neuropsychiatric Interview (M.I.N.I.). Fasting serum levels of UA, as well as glucose, lipid and renal function indicators were measured.
Results: Serum UA levels in MDD patients with suicide risk (245.01 ± 55.44 μmol/L) were significantly lower than those in MDD patients without suicide risk (274.17 ± 72.65 μmol/L) (p = 0.017) and healthy controls (271.42 ± 55.25 μmol/L) (p = 0.030). There was no difference in serum UA levels between the MDD patients without suicide risk and healthy controls (p = 0.821). Binary logistic regression analysis revealed a significant relationship between suicide risk and decreased serum UA levels (OR = 0.989, p = 0.010) in MDD patients.
Conclusion: Decreased serum UA levels were associated with suicide risk in MDD patients. Purinergic system dysfunction may be involved in the neurobiological basis of suicide risk in these patients.