인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Suicide attempts (SA) during major depressive episodes (MDE) pose a significant clinical challenge, yet its underlying biological mechanisms, particularly those associated with recent SA, remain poorly understood. In this case-control study (n = 106), we compared the immunological profiles associated with MDE without SA (n = 36), MDE with a recent SA (n = 35), and a healthy controls (n = 35). Fresh blood samples were analyzed for total cell count and using flow cytometry (FACS) to assess specific cell surface markers. Plasma proteins were quantified using multiplex ELISA or Quanterix. Multiple factorial analysis (MFA) identified three primary dimensions structuring the biological markers: soluble immune and growth factors, cellular immunity (cell ratios, CD45<sup>+</sup>, CD3<sup>+</sup>, CD8<sup>+</sup>, CD14<sup>+</sup>), and neuroinflammatory markers (GFAP, NfL, CD4+). These dimensions differentiated MDE patients from healthy controls regardless of SA status. Three parallel feature selection analyses were used to examine whether individual biomarkers could differentiate between the subgroups. Lower percentages of CD3<sup>+</sup>, CD8<sup>+</sup>CD3<sup>+</sup>, higher basophil count, and lower serotonin levels differentiated MDE without SA from healthy controls. An increased neutrophil-to-lymphocyte ratio and basophil count, and lower serotonin levels differentiated recent SA from healthy controls. We found no significant differences between MDE patients with and without SA, though exploratory analyses identified individual markers, such as platelet-derived factors, that warrant further investigation. These findings provide new insights into the immune landscape of MDE and recent SA and underscore the need for future longitudinal studies to disentangle state- and trait-like biological changes associated with SA.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.