Publications by authors named "Woori Choi"

Purpose: This prospective study aimed to compare titration pressures obtained using three methods-full-night titration (FN-T), split-night titration (SN-T), and home auto-titration (HA-T)- in patients with moderate to severe obstructive sleep apnea (OSA). Additionally, factors contributing to pressure differences relative to FN-T were investigated.

Methods: SN-T was performed on 74 patients suspected of having OSA.

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Small-conductance Ca-activated K channels (SK, K2) are gated solely by intracellular microdomain Ca. The channel has emerged as a therapeutic target for cardiac arrhythmias. Calmodulin (CaM) interacts with the CaM binding domain (CaMBD) of the SK channels, serving as the obligatory Ca sensor to gate the channels.

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Importance: In vivo imaging studies of reactive astrocytes are crucial for understanding the pathophysiology of schizophrenia because astrocytes play a critical role in glutamate imbalance and neuroinflammation.

Objective: To investigate in vivo reactive astrocytes in patients with schizophrenia associated with positive symptoms using monoamine oxidase B (MAO-B)-binding fluorine 18 ([18F])-labeled THK5351 positron emission tomography (PET).

Design, Setting, And Participants: In this case-control study, data were collected from October 1, 2021, to January 31, 2023, from the internet advertisement for the healthy control group and from the outpatient clinics of Seoul National University Hospital in Seoul, South Korea, for the schizophrenia group.

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Cryopreservation, the most common method of preserving stem cells, requires post-processing because it produces trauma to the cells. Post-thawing trauma typically induces cell death, elevates reactive oxygen species (ROS) concentration, and lowers mitochondrial membrane potential (MMP). Although this trauma has been solved using antioxidants, we attempted to use photobiomodulation (PBM) instead of chemical treatment.

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Objectives: Compliance with positive airway pressure (PAP) in patients with obstructive sleep apnea (OSA) directly affects its treatment efficacy. Since July 2018, polysomnography and PAP therapy have been covered by the National Health Insurance (NHI), which has reduced the price barrier and promoted PAP therapy in Korea. This study aimed to compare changes in PAP compliance before and after NHI implementation.

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Aim: Although the comprehensive assessment of at-risk mental states (CAARMS) is one of the most widely used instruments for identifying individuals meeting the criteria for ultra-high risk (UHR) of developing psychosis, the psychometric properties of the Korean version of the CAARMS (CAARMS-K) have not been studied to date. Thus, we tested the reliability, validity, and factor structure of the CAARMS-K in a Korean population.

Methods: The CAARMS-K was administered to 96 UHR individuals.

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Intracranial aneurysm (IA) is characterized by an abnormal bulging of one of the arteries in the brain and is heavily affected by genetic factors. Although IA is a very serious disease because of its severity and prevalence in the general public, the gene causing IA has not yet been identified due mainly to the lack of definitive genetic loci for the disease. Following a model-based family collection that recruited families from a geographically limited area that inherited IA as an autosomal dominant trait, we conducted a genome-wide linkage analysis.

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