Clinical features of secondary BPPV: A nation-wide multicenter study.

BackgroundBenign paroxysmal positional vertigo (BPPV) is the most common peripheral vestibular disorder, and its prevalence is substantial. While primary BPPV has been well studied, the understanding of secondary BPPV is still limited.ObjectiveTo investigate the prevalence and clinical characteristics of secondary BPPV in a national multicenter retrospective analysis.

Novel anti-CD73-IL-2v bispecific fusion protein augments antitumor immunity by alleviating immunosuppressive adenosine pathways in CD8 T cells.

Background: Adenosine accumulated in the tumor microenvironment functions as an immune-modulating factor, exerting immunosuppressive actions via adenosine A2A/A2B receptor (A2AR/A2BR) in various immune cell types. CD73, a key enzymatic regulator responsible for adenosine production, is frequently overexpressed in diverse cancers, and its overexpression is associated with reduced responsiveness to conventional anti-cancer drug treatments such as chemotherapy, radiation therapy, targeted therapy, or immunotherapy. Despite numerous therapeutic applications of IL-2 in cancer immunotherapy, the relationship between the CD73-adenosine axis and IL-2-based immunotherapy remains largely unexplored.

Revisiting NANDA International-Nursing Interventions Classification-Nursing Outcomes Classifications Linkages of Nursing Home Residents in Korea.

Standardized nursing languages help nurses articulate issues with patients, forming the groundwork for the selection of nursing interventions aimed at achieving outcomes. However, the application of standardized nursing linkages on nursing processes and nursing home residents' outcomes, as well as the identification of facility and resident factors, remains unexplored. The purpose of this study was to examine nursing home facility and resident factors on the use of NANDA, Nursing Interventions Classification, and Nursing Outcomes Classification (NNN) and frequently occurring NNN linkages surrounding nursing home residents in Korea.

Optic neuropathy as an early manifestation of granulomatosis with polyangiitis: a case report and literature review.

Introduction: Ophthalmic involvement occurs in up to 40% of patients with granulomatosis with polyangiitis (GPA), usually confined to the anterior segment. Herein, we describe patients presenting with optic neuropathy as an early manifestation of GPA, without other signs of ocular or adnexa involvement.

Methods: We report a case of isolated optic neuropathy without other ocular or adnexal involvement and examine the reported clinical features of 17 additional patients through a literature review.

Neighborhood Deprivation and Functional Outcomes Following Ischemic Stroke (P2-4.007).

Objective: To test the hypothesis that neighborhood deprivation leads to unfavorable long-term functional outcomes following acute ischemic stroke (AIS).

Background: The association between neighborhood deprivation and the risks of disease and mortality among ischemic stroke patients is well-documented. However, the role of neighborhood deprivation in long-term outcomes following acute brain injury remains understudied.

The International Classification of Vestibular Disorders: Achievements, challenges, and future directions.

In 2007, the Bárány Society embarked on a project to establish definitions of vestibular syndromes and disorders based on best available evidence, referred to as the International Classification of Vestibular Disorders (ICVD). Since then, numerous publications providing consensus-driven diagnostic criteria for vestibular symptoms, syndromes, and disorders have been published. Here, we reflect on the rationale for developing the ICVD as well as its subsequent achievements, challenges, and outlook.

A Novel Histone Deacetylase 6 Inhibitor, 4-FHA, Improves Scopolamine-Induced Cognitive and Memory Impairment in Mice.

Although histone deacetylase 6 (HDAC6) is considered a therapeutic target for Alzheimer's disease (AD), its role in cholinergic dysfunction in AD patients remains unclear. This study investigated the effects of ()-3-(2-(4-fluorostyryl)thiazol-4-yl)--hydroxypropanamide (4-FHA), a new synthetic HDAC6 inhibitor, on cognitive and memory impairments in a scopolamine-induced-AD mouse model. Behaviorally, 4-FHA improved scopolamine-induced memory impairments in the Y-maze, passive avoidance, and Morris water maze tests.

Outcomes of Radiologist Recommendations for Temporal Bone CT to Assess Superior Semicircular Canal Dehiscence on Temporal Bone MRI.

Background And Purpose: Superior semicircular canal dehiscence can be detected on temporal bone MR images. Radiologists often recommend confirmation with temporal bone CT due to reported lower MRI positive predictive value. The value of these recommendations is unclear given that CT overestimates dehiscence due to volume averaging and that only a small proportion of patients with dehiscence on CT suffer from dehiscence syndrome.

Pediatric reference values for total psoas muscle area in Korean children and adolescents.

Background: Uniform cut-off values cannot be applied to children because muscle mass changes significantly with growth and different population groups have different races and lifestyles, so reference values from healthy children are needed.

Materials And Methods: Pediatric patients (≤18 years of age) who underwent abdominal CT for abdominal pain in the emergency room without a past history from January 2015 to January 2021 were enrolled. Total psoas muscle area (tPMA) was calculated as bilateral psoas muscle areas drawn semi-automatically at the levels of L3-4 and L4-5.

Apparent diffusion coefficient values in differentiating benign and malignant thoracic masses in children and young adults.

Background: In children and young adults, tumors in the chest and thoracic wall exhibit a wide variety of types, making it challenging to differentiate between benign and malignant cases before invasive histopathological examination.

Purpose: To evaluate the utility of apparent diffusion coefficient (ADC) for discriminating malignant thoracic masses in children and young adults.

Material And Methods: This retrospective study included chest magnetic resonance imaging (MRI) scans in patients aged <30 years.

Comparative analysis of deep learning and radiomic signatures for overall survival prediction in recurrent high-grade glioma treated with immunotherapy.

Background: Radiomic analysis of quantitative features extracted from segmented medical images can be used for predictive modeling of prognosis in brain tumor patients. Manual segmentation of the tumor components is time-consuming and poses significant reproducibility issues. We compare the prediction of overall survival (OS) in recurrent high-grade glioma(HGG) patients undergoing immunotherapy, using deep learning (DL) classification networks along with radiomic signatures derived from manual and convolutional neural networks (CNN) automated segmentation.

Spontaneous Nystagmus Violating the Alexander's Law: Neural Substrates and Mechanisms.

Alexander's law states that spontaneous nystagmus increases when looking in the direction of fast-phase and decreases during gaze in slow-phase direction. Disobedience to Alexander's law is occasionally observed in central nystagmus, but the underlying neural circuit mechanisms are poorly understood. In a retrospective analysis of 2,652 patients with posterior circulations stroke, we found a violation of Alexander's law in one or both directions of lateral gaze in 17 patients with lesions of unilateral lateral medulla affecting the vestibular nucleus.

Psychosocial Support Needs and Preferences Among Family Caregivers of ICU Patients with Severe Acute Brain Injury: A Qualitative Thematic Analysis.

Background: Family caregivers of patients with severe acute brain injury (SABI) are at risk for clinically significant chronic emotional distress, including depression, anxiety, and posttraumatic stress. Existing psychosocial interventions for caregivers of intensive care unit (ICU) patients are not tailored to the unique needs of caregivers of patients with SABI, do not demonstrate long-term efficacy, and may increase caregiver burden. In this study, we explored the needs and preferences for psychosocial services among SABI caregivers to inform the development and adaptation of interventions to reduce their emotional distress during and after their relative's ICU admission.

Selective otolithic dysfunction in patients presenting with acute spontaneous vertigo: consideration based on MRI.

Objective: Acute unilateral peripheral vestibulopathy or vestibular neuritis (AUPV/VN) manifests as acute onset vertigo, often accompanied by nausea, vomiting, and moderate gait instability. It is suspected when vestibular hypofunction is documented on video-head impulse (video-HITs) and caloric tests in the presence of contralesionally beating horizontal-torsional nystagmus. Herein, we report patients presenting with acute vestibular syndrome (AVS) showing selective otolithic dysfunction in the presence of normal caloric and video-HITs and abnormal enhancement of the peripheral vestibular structures on MRI.

Seroprevalence of Infection in Wild Boar () and Korean Water Deer () in the Republic of Korea.

is a ubiquitous zoonotic parasite with a wide range of warm-blooded animals as intermediate hosts, where the transmission primarily occurs through ingesting oocysts in the environment. Hence, animals inhabiting a wide geographical range can be sentinels for the environmental contamination of oocysts. The aim of this study was to determine the seroprevalence of in two generalist ungulates in the Republic of Korea (ROK), wild boar () and Korean water deer (), and identify the risk factors associated with this infection.

Prediction of Patient Drug Response via 3D Bioprinted Gastric Cancer Model Utilized Patient-Derived Tissue Laden Tissue-Specific Bioink.

Despite significant research progress, tumor heterogeneity remains elusive, and its complexity poses a barrier to anticancer drug discovery and cancer treatment. Response to the same drug varies across patients, and the timing of treatment is an important factor in determining prognosis. Therefore, development of patient-specific preclinical models that can predict a patient's drug response within a short period is imperative.

Capillary-assisted flat-field formation: a platform for advancing nanoparticle tracking analysis in an integrated on-chip optofluidic environment.

Here, we present the concept of flat-field capillary-assisted nanoparticle tracking analysis for the characterization of fast diffusing nano-objects. By combining diffusion confinement and spatially invariant illumination, i.e.

Chlorhexidine Dihydrochloride Shows Anti-tumor Effects in Desmoid Tumors and Colorectal Cancer.

Background/aim: Desmoid tumors (DTs), or aggressive fibromatosis, are rare neoplasms arising from connective tissue, frequently exhibiting local invasiveness. The limited treatment options and high recurrence rates of DTs highlight the need for novel therapeutic strategies. This study investigated the efficacy of chlorhexidine dihydrochloride (CD) in inhibiting the growth of DTs and colorectal cancer (CRC).

Engineering pore-enriched and pre-vascularized volumetric constructs for enhanced blood glucose regulation in type 1 diabetes therapy.

Managing type 1 diabetes mellitus (T1DM) presents significant challenges because of the complexity of replicating the microenvironment of pancreatic islets and ensuring the long-term viability and function of transplanted insulin-producing cells (IPCs). This study developed a functional approach that utilizes 3D bioprinting technology to create pore-enriched and pre-vascularized tissue constructs incorporating a pancreatic tissue-derived decellularized extracellular matrix and human-induced pluripotent stem cells (hiPSCs) aimed at enhancing blood glucose regulation in T1DM. We designed a volumetric 3D pancreatic tissue construct that supported the engraftment, survival, and insulin-producing functionality of hiPSC-derived IPCs.