Journal of psychiatric research · 2024
High CSF neurogranin level is related to lifetime reports of passive suicidal ideation in a population-based sample of older adults.
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Rymo Irma, Zetterberg Henrik, Blennow Kaj, Kern Silke, Skoog Ingmar, Sacuiu Simona, Waern Margda
Аннотация
OBJECTIVE: To investigate the association of cerebrospinal fluid (CSF) levels of markers of synaptic dysfunction and neuronal damage, neurogranin (Ng) and neurofilament light chain (NfL), with suicidal ideation in older adults.
METHOD: The sample was obtained from the Gothenburg H70 Birth Cohort Studies and included 316 dementia free individuals (151 women, 165 men, mean age 70.6) who underwent extensive psychiatric examinations and lumbar puncture (LP). Suicidal ideation was assessed using the Paykel questions.
RESULTS: Past year suicidal ideation (any severity level) was reported by 9 (2.8%) participants while 58 (18.4%) reported experiencing such ideation during their lifetime. High CSF Ng level was associated with lifetime reports of life weariness (OR 2.03, 95% CI 1.01-4.11, P = 0.048), death wishes (OR 2.26, 95% CI 1.02-4.98, P = 0.044) and thoughts of taking one's own life (OR 3.17, 95% CI 1.31-7.65, P = 0.010) in adjusted logistic regression models including self-reported lifetime depression as a covariate. The association between high CSF Ng level and lifetime suicidal ideation (all severity levels) remained in models adjusted for CSF levels of amyloid beta 42 (Aβ42), T-Tau and P-Tau. No relationship was seen between high CSF NfL and suicidal ideation.
CONCLUSION: The association between high CSF Ng level and history of suicidal ideation suggests that synaptic dysfunction may be involved in the diathesis of passive suicidal ideation. CSF markers of neurodegeneration did not modify these findings.
METHOD: The sample was obtained from the Gothenburg H70 Birth Cohort Studies and included 316 dementia free individuals (151 women, 165 men, mean age 70.6) who underwent extensive psychiatric examinations and lumbar puncture (LP). Suicidal ideation was assessed using the Paykel questions.
RESULTS: Past year suicidal ideation (any severity level) was reported by 9 (2.8%) participants while 58 (18.4%) reported experiencing such ideation during their lifetime. High CSF Ng level was associated with lifetime reports of life weariness (OR 2.03, 95% CI 1.01-4.11, P = 0.048), death wishes (OR 2.26, 95% CI 1.02-4.98, P = 0.044) and thoughts of taking one's own life (OR 3.17, 95% CI 1.31-7.65, P = 0.010) in adjusted logistic regression models including self-reported lifetime depression as a covariate. The association between high CSF Ng level and lifetime suicidal ideation (all severity levels) remained in models adjusted for CSF levels of amyloid beta 42 (Aβ42), T-Tau and P-Tau. No relationship was seen between high CSF NfL and suicidal ideation.
CONCLUSION: The association between high CSF Ng level and history of suicidal ideation suggests that synaptic dysfunction may be involved in the diathesis of passive suicidal ideation. CSF markers of neurodegeneration did not modify these findings.