Discordance Between Subjective Visual Vertical and Vestibular Evoked Myogenic Potentials in Stroke.

Background: While there has been a significant correlation between subjective visual vertical (SVV) and ocular vestibular myogenic potentials (oVEMPs) tests in acute vestibular neuritis (AVN), the association between these two tests in central vestibular lesions remains uncertain.

Methods: We prospectively recruited 58 patients with acute stroke involving the posterior circulation territory (PCS) between 2019 and 2022. For comparison, 32 patients with AVN served as a control.

Horizontal gaze-evoked nystagmus in pontine gaze palsy: patterns and anatomical correlates.

Background: To delineate the patterns and anatomical correlates of gaze-evoked nystagmus (GEN) in horizontal gaze palsy due to dorsal pontine lesions.

Methods: A total of 17 patients with horizontal gaze palsy and unilateral dorsal pontine lesions were retrospectively recruited from referral-based six university hospitals in Korea. The clinical characteristics, oculographic data, and MRI lesions of the patients were subjected to analysis.

Protective effect of melatonin against blue light-induced cell damage via the TRPV1-YAP pathway in cultured human epidermal keratinocytes.

Although blue light has been known to negatively affect skin cells, its detailed signaling mechanisms and anti-blue light agents have not been clearly elucidated. We investigated the involvement of Yes-associated protein (YAP)-mediated Hippo signaling in blue light-induced apoptosis, depending on the degree of blue light exposure. Additionally, we elucidated the effects of melatonin on blue light-irradiated keratinocytes and examined their action mechanisms.

Wearable ECG patch monitoring for 72 h is comparable to conventional Holter monitoring for 24 h to detect cardiogenic vertigo.

We sought to compare the diagnostic efficacy of a 72-hour wearable electrocardiography (ECG) patch monitoring with a conventional 24-hour Holter monitoring for the detection of cardiogenic vertigo. We conducted a prospective multicenter study that recruited 47 patients suspected of cardiogenic vertigo in four referral-based university hospitals between November 2019 and April 2022. Patients received simultaneous ambulatory ECG recordings using a 72-hour wearable ECG patch monitoring and a conventional 24-hour Holter monitor.

Processable and controllable all-aqueous gels based on high internal phase water-in-water emulsions.

Aqueous two-phase systems (ATPSs) have primarily been developed in the form of emulsions to enhance their utilization in green and biocompatible applications. However, numerous challenges have arisen in forming stable and processable water-in-water (W/W) emulsion systems, as well as in fine-tuning the interconnectivity of their internal structure, which can significantly impact their performance. To effectively address these challenges, we elucidate, for the first time, the root cause of the poor stability of W/W emulsions.

Food-related media use and eating behavior in different food-related lifestyle groups of Korean adolescents in metropolitan areas.

Background/objectives: This study investigated the relationship between adolescent food-related lifestyles and food-related media use and eating behavior in Korea.

Subjects/methods: Participants were 392 Korean adolescents, ranging in age from 12 to 18, recruited via convenience sampling. They completed a self-report questionnaire survey consisting of questions about food-related lifestyle, food-related media use, food consumption behavior, food literacy, and nutrition quotient.

The Potential of Percent Agreement as an Adjunctive Diagnostic Tool for Acute Temporomandibular Disorder.

: It is well established that individuals with chronic temporomandibular disorder (TMD) exhibit differences in their physical and psychosocial characteristics from those with acute TMD. However, few studies have analyzed the physical and psychosocial characteristics of patients with acute TMD. The objective of this cross-sectional study is twofold: first, to ascertain whether there are differences in physical and psychosocial factors among patients with acute TMD based on the percent agreement between patient-reported pain sites and pain sites identified through standardized palpation and, second, to determine the potential of percent agreement as a diagnostic and prognostic factor.

Clinical characteristics of persistent postural-perceptual dizziness and its visual subtype in Korean patients: A multicenter cross-sectional study.

Objectives: Persistent postural-perceptual dizziness (PPPD) is a chronic functional vestibular disorder for which the Bárány Society has established diagnostic criteria. This nationwide multicenter study aims to investigate the clinical features of individuals with definite PPPD and clinical variant PPPD who do not fully meet the diagnostic criteria, with a particular focus on visual exaggeration.

Methods: Between September 2020 and September 2021, a total of 76 individuals with definite PPPD and 109 individuals with clinical variant PPPD who did not meet all three exacerbating factors outlined in Criterion B were recruited from 18 medical centers in South Korea.

Abnormal vestibular-evoked myogenic potentials as a risk factor for unpredicted falls in spinocerebellar ataxia: a preliminary study.

Objective: This study aimed to correlate the symptoms and signs with the findings of laboratory vestibular function tests in patients with spinocerebellar ataxia (SCA).

Method: We retrospectively recruited 26 patients with SCA (9 men, median age: 52, age range: 21-67). Assessments included Dizziness Handicap Inventory, EuroQoL Five-Dimension, symptom questionnaires manifesting during walking in daily life, the Scale for the Assessment and Rating of Ataxia (SARA), and vestibular function tests including 3D video-oculography, video head impulse test, subjective visual vertical, and cervical and ocular vestibular evoked myogenic potentials (VEMP).

Predictive models for posttransplant diabetes mellitus in kidney transplant recipients using machine learning and deep learning approach: a nationwide cohort study from South Korea.

Background: Posttransplant diabetes mellitus (PTDM) complicates kidney transplant recipients (KTRs) in morbidity and mortality. This study aimed to predict PTDM risk in KTRs using machine learning and deep learning models.

Methods: Data were obtained from the Korea Organ Transplantation Registry, a nationwide cohort study of KTRs.

Restoring natural upper limb movement through a wrist prosthetic module for partial hand amputees.

Background: Most partial hand amputees experience limited wrist movement. The limited rotational wrist movement deteriorates natural upper limb system related to hand use and the usability of the prosthetic hand, which may cause secondary damage to the musculoskeletal system due to overuse of the upper limb affected by repetitive compensatory movement patterns. Nevertheless, partial hand prosthetics, in common, have only been proposed without rotational wrist movement because patients have various hand shapes, and a prosthetic hand should be attached to a narrow space.

A Comparison of the Condyle and Articular Eminence in Asian Juvenile Idiopathic Osteoarthritis Patients with Unilateral and Bilateral TMJ Involvement: A Retrospective Case-Control Study.

This study compared the condylar volume, length, and articular eminence (AE) characteristics of normal individuals to those with unilateral and bilateral juvenile idiopathic osteoarthritis (JOA). The 116 patients were divided into four groups: Control (n = 16), affected condyle of unilateral JOA (Aff-Uni) (n = 36), non-affected condyle of JOA (NonAff-uni) (n = 36), and bilateral JOA (Bilateral) (n = 28). The differences in condyle volume and length and AE were analyzed using ANOVA and Bonferroni post-hoc tests.

Anti-Pollutant Activity of Water Extract and Its Active Compound, Porphyra 334, against Urban Particulate Matter-Induced Keratinocyte Cell Damage.

Urban particulate matter (UPM) causes skin aging and inflammatory reactions by influencing skin cells through the aryl hydrocarbon receptor (AhR) signaling pathway. (also known as ), a red alga belonging to the Bangiaceae family, is an edible red seaweed. Here, we examined the anti-pollutant effect of water extract.

Sequential orbital apex syndrome following the COVID-19 vaccination: A case report.

Background: Many kinds of vaccines have been developed worldwide to bring the coronavirus disease 2019 (COVID-19) to an end. We report a case of recurrent orbital apex syndrome following the first and third doses of SARS-CoV-2 vaccination.

Case Presentation: A 71-year-old woman presented with acute painless diplopia and visual disturbance for two days.

Effect of Self-treatment of Recurrent Benign Paroxysmal Positional Vertigo: A Randomized Clinical Trial.

Importance: Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo with frequent recurrences.

Objective: To determine the efficacy of a web-based diagnosis and treatment of BPPV when it recurs in patients with confirmed and treated BPPV.

Design, Setting, And Participants: This randomized, controlled, parallel-group, double-blind trial took place in multiple referral-based university hospitals in South Korea between July 2017 and February 2020.

Initial Healing Effects of Platelet-Rich Plasma (PRP) Gel and Platelet-Rich Fibrin (PRF) in the Deep Corneal Wound in Rabbits.

Platelet concentrates (PCs), including platelet-rich plasma (PRP) gel and platelet-rich fibrin (PRF), are autologous blood-derived biomaterials containing numerous growth factors. This study aimed to evaluate the initial healing effects of PRP gel and PRF on deep corneal wounds. Thirty-three eyes from New Zealand white rabbits were divided into four groups: group 1, lamellar keratectomy (LK); group 2, LK + commercial porcine small intestinal submucosal membrane (SIS); group 3, LK + SIS + PRP gel; and group 4, LK + SIS + PRF.

Study on Intention Recognition and Sensory Feedback: Control of Robotic Prosthetic Hand Through EMG Classification and Proprioceptive Feedback Using Rule-based Haptic Device.

In this study, for intention recognition, a convolutional neural network (CNN) classification model using the electromyography (EMG) signals acquired from the subject was developed. For sensory feedback, a rule-based wearable proprioceptive feedback haptic device, a new method for providing feedback on the grip information of a robotic prosthesis was proposed. Then, we constructed a closed-loop integrated system consisting of the CNN-based EMG classification model, the proposed haptic device, and a robotic prosthetic hand.

Yellow Chaste Weed and Its Components, Apigenin and Galangin, Affect Proliferation and Oxidative Stress in Blue Light-Irradiated HaCaT Cells.

While harmful effects of blue light on skin cells have been recently reported, there are few studies regarding natural products that alleviate its negative effects. Therefore, we investigated ameliorating effects of yellow chaste weed (YCW) () extract and its components, apigenin and galangin, on blue light-irradiated HaCaT cells. In this study, we found that YCW extract improved the reduced proliferation of HaCaT cells induced by blue light-irradiation and reduced blue light-induced production of reactive oxygen species (ROS) levels.

Erratum: Isolated Vestibular Syndrome With "Double-Panda" Sign in CNS Lymphoma.

This corrects the article on p. 111 in vol. 18, PMID: 35021288.

Olfactory Receptor OR7A17 Expression Correlates with All- Retinoic Acid (ATRA)-Induced Suppression of Proliferation in Human Keratinocyte Cells.

Olfactory receptors (ORs), which belong to the G-protein-coupled receptor family, have been widely studied as ectopically expressed receptors in various human tissues, including the skin. However, the physiological functions of only a few OR types have been elucidated in skin cells. All- retinoic acid (ATRA) is a well-known medication for various skin diseases.