Widened retinal arteriolar and venular diameters are not an endophenotype of schizophrenia: A one-time cross-sectional study.
Neuro Endocrinol Lett
; 44(5): 290-296, 2023 Jul 28.
Article
en En
| MEDLINE
| ID: mdl-37524318
ABSTRACT
OBJECTIVES:
Studies of schizophrenia endophenotypes may help clinicians better understand the etiopathogenesis and treatment of this mental disorder. The aim of the study was to determine if retinal arteriolar or venular abnormalities are an endophenotype of schizophrenia.DESIGN:
We performed a one-time cross-sectional study. MATERIALS ANDMETHODS:
We enlisted schizophrenic patients (n = 53) hospitalized in the Department of Psychiatry, University Hospital Hradec Kralove; their mentally healthy first-degree relatives (n = 53); and unrelated, age- and sex-matched mentally healthy controls (n = 49). We recorded all participants´ sociodemographic and, if relevant, clinical variables. Retinal imaging was carried out using a digital fundus camera (FF450 + IR). Outcomes included retinal vessel calibers measured using the software application VAMPIRE.RESULTS:
The study enrolled fifty-three schizophrenic patients (average age 32.1 years; males n = 38), an equal number of healthy relatives (average age 47.3 years; males n = 18), and forty-nine unrelated healthy controls (average age 32.2 years; males n = 35). Patients with schizophrenia had significantly increased retinal arteriolar diameters when compared to unrelated healthy controls (left eye p = 0.003; right eye p = 0.011) but not when compared to healthy relatives. The sizes of the retinal venules were not significantly different among the study groups.CONCLUSIONS:
Our cross-sectional findings do not support the notion that retinal microvascular anomalies are an endophenotype in schizophrenia. Longitudinal studies of this subject should be included in further research.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Observational_studies
/
Prevalence_studies
Idioma:
En
Revista:
Neuro Endocrinol Lett
Año:
2023
Tipo del documento:
Article
País de afiliación:
República Checa