Publications by authors named "Hyun J Cho"

Background: Light therapy (LT) in Parkinson's disease improves sleep. Specific LT parameters require further study, including optimal frequency.

Objectives: We aimed to determine if once- or twice-daily bright white light therapy (BWLT) improves sleep.

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Objectives: The differential diagnosis of functional and other etiologies of dystonia can be difficult. We performed a clinical neurophysiological study in a female patient with cranial-cervical dystonia, providing strong evidence for the diagnosis of functional dystonia.

Methods: The patient had torticollis and intermittent facial pulling with downward deviation of the left angle of the mouth.

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Introduction: Type 2 diabetes mellitus (DM) is a known risk factor for sarcopenia. Apolipoprotein J (ApoJ) and myostatin (MSTN) have been implicated in muscle glucose metabolism. We aimed to examine the association between serum ApoJ and MSTN levels and sarcopenia in older adults, with and without DM.

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Air embolism from central venous access removal may be fatal, even when removed in the supine position. This case demonstrates that a high index of suspicion combined with point-of-care ultrasonography is vital for the rapid diagnosis and management of this condition.

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Background: Visual impairment is associated with cognitive dysfunction in older adults; however, a relationship between stereopsis and cognitive function remains unclear. This study aimed to investigate the association between stereopsis and cognitive function in community-dwelling older adults.

Methods: A cross-sectional analysis was conducted with data of 1,228 participants aged 74-88 years from the Korean Frailty and Aging Cohort Study.

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Background: Primary spontaneous pneumothorax (PSP) is commonly treated with video-assisted thoracoscopic surgery (VATS), which traditionally requires one-lung ventilation (OLV) with double-lumen endotracheal intubation to optimize the surgical field. However, OLV may be associated with complications such as airway trauma and postoperative sore throat. In contrast, two-lung ventilation (TLV) with CO insufflation has been proposed as an alternative that may reduce airway-related complications while maintaining adequate visualization.

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We investigated whether dietary intakes of saturated fat (SFA), monounsaturated fat (MUFA), or polyunsaturated fat (PUFA) were associated with plasma inflammatory markers among breast cancer survivors in Korea. This cross-sectional study included 419 female breast cancer survivors aged 30 to 78 years. Dietary intake was assessed using 3-day dietary records (DRs) or food frequency questionnaires (FFQs).

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Aims: Metabolic dysfunction-associated fatty liver disease (MAFLD) has recently been proposed to describe the hepatic steatosis associated with metabolic abnormalities. Substantial evidence has shown that hepatic steatosis may be linked with cognitive impairment and dementia. This study aimed to clarify the association between MAFLD and brain structural and cognitive changes.

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Background: The American Society of Addiction Medicine Patient Placement Criteria (ASAM PPC) are guidelines for matching addiction patients to an optimal level of care (LOC). South Korea lacked a systematic approach to assigning alcohol use disorder patients to suitable treatment. To address this, Park et al.

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Introduction: Prognosis in patients undergoing resection for lung and gastrointestinal cancers may differ, depending on the microscopic involvement of surgical margins. Linear staplers, widely used for pulmonary or bowel resection, consist of three rows of fasteners on both sides of a resection line. Although multiple rows of fasteners ensure stump and specimen closure, specimen could compromise accurate pathological evaluation of the true surgical margin.

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Article Synopsis
  • - The study focused on how parieto-motor paired stimulation affects brain plasticity in patients with writer's cramp (WC) and cervical dystonia (CD) compared to healthy volunteers.
  • - Using paired transcranial magnetic stimulation, researchers found that the stimulation increased motor cortex excitability in WC patients but not in CD patients or healthy individuals.
  • - The results indicate that while the stimulation enhances brain function in WC, it doesn't seem to relate to changes in the connectivity between the posterior parietal cortex and the motor cortex.
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Background: Frailty is associated with reduced intrinsic capacity (IC). However, studies evaluating longitudinal transitions between IC and frailty are limited. We conducted longitudinal analyses to investigate the association between intrinsic capacity (IC) and frailty transitions among community-dwelling older adults in Korea.

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  • Interest in citrate-based dialysate (Cit-D) is increasing due to its advantages in anticoagulation and dialysis efficiency, yet research on its use in high-volume hemodiafiltration (HDF) is limited.
  • This study analyzed 28 patients who switched from acetate-based dialysate (Acet-D) to Cit-D, examining safety and effectiveness across three 12-week periods.
  • Results showed a 17% reduction in heparin dosage, improvements in dialysis efficiency (increased Kt/V and urea reduction ratio), and no significant safety concerns, suggesting Cit-D may have benefits over Acet-D in this setting.
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Background: Dietary factors play a role in the etiology of gastrointestinal cancer. We aimed to estimate the burden of gastric and colorectal cancer that can be attributable to dietary factors in adults aged 20 years and older in Korea in 2018.

Methods: Dietary intakes in 2000 were estimated using data from the 2001, 2005, and 2007-2018 Korea National Health and Nutrition Examination Survey (KNHANES).

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Background: The internal mammary artery (IMA) is the most commonly used graft in coronary artery bypass grafting (CABG) because of its superior long-term patency rate. However, its small diameter poses challenges in handling, and any vascular damage that may occur during harvesting can significantly affect surgical outcomes. The primary focus during IMA harvesting is to ensure safe and effective hemostasis without direct vascular injury, while ensuring secure and reliable ligation of the vascular branches.

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Free-living amoebae (FLA) are found in diverse environments, such as soils, rivers, and seas. Hence, they can be used as bioindicators to assess the water quality based solely on their presence. In this study, we determined the presence of FLA in river water by filtering water samples collected from various sites and culturing the resulting filtrates.

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Background And Objectives: The number of sensitized heart failure patients on waiting lists for heart transplantation (HTx) is increasing. Using the Korean Organ Transplantation Registry (KOTRY), a nationwide multicenter database, we investigated the prevalence and clinical impact of calculated panel-reactive antibody (cPRA) in patients undergoing HTx.

Methods: We retrospectively reviewed 813 patients who underwent HTx between 2014 and 2021.

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Article Synopsis
  • * A 32-month-old boy experienced a rapidly growing skull mass after a minor head injury, and during surgery, he had a seizure that led to imaging showing an EDH; the mass was later identified as EG but had positive surgical margins.
  • * The case highlights the uncommon relationship between EG and EDH, emphasizing the importance of including EG in differential diagnoses for cranium masses; timely
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Objectives: To analyze the sizes of the stapedius and tensor tympani (TT) muscles using a temporal bone CT (TBCT) scan in patients with middle ear myoclonic tinnitus (MEMT) and investigate their value for the diagnosis of this rare cause of tinnitus.

Methods: Medical records and TBCT of patients with MEMT or vascular tinnitus (VT) at Seoul St. Mary's Hospital from January 2012 to December 2022 were reviewed.

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Various strategies at the microscale/nanoscale have been developed to improve oral absorption of therapeutics. Among them, gastrointestinal (GI)-transporter/receptor-mediated nanosized drug delivery systems (NDDSs) have drawn attention due to their many benefits, such as improved water solubility, improved chemical/physical stability, improved oral absorption, and improved targetability of their payloads. Their therapeutic potential in disease animal models (, solid tumors, virus-infected lungs, metastasis, diabetes, and so on) has been investigated, and could be expanded to disease targeting after systemic/lymphatic circulation, although the detailed paths and mechanisms of endocytosis, endosomal escape, intracellular trafficking, and exocytosis through the epithelial cell lining in the GI tract are still unclear.

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Characterization of gene regulatory mechanisms in cancer is a key task in cancer genomics. CCCTC-binding factor (CTCF), a DNA binding protein, exhibits specific binding patterns in the genome of cancer cells and has a non-canonical function to facilitate oncogenic transcription programs by cooperating with transcription factors bound at flanking distal regions. Identification of DNA sequence features from a broad genomic region that distinguish cancer-specific CTCF binding sites from regular CTCF binding sites can help find oncogenic transcription factors in a cancer type.

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Article Synopsis
  • - This study examined how following the American Cancer Society's lifestyle guidelines on nutrition and physical activity affects inflammation in breast cancer survivors, focusing on 409 women who had surgery at least a year prior.
  • - Findings revealed that higher adherence to these guidelines correlated with lower levels of a specific inflammatory marker (hs-CRP) and higher levels of adiponectin, particularly related to body mass index (BMI) adherence.
  • - The researchers concluded that these healthy lifestyle habits positively influence inflammation levels in breast cancer survivors, especially through the BMI component, highlighting the need for more studies to explore these relationships over time.
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Understanding the reasons behind junctional ventricular escape rhythm is crucial for guiding the clinical management of patients. Various factors such as acidosis, hyperkalemia, metabolic toxins, digoxin toxicity, and BRASH syndrome (comprising bradycardia, renal failure, atrioventricular (AV) nodal blockade, shock, and hyperkalemia) should be considered when dealing with a symptomatic unstable patient in a hospital. In this case, we present an example where metabolic toxins, specifically uremia, in combination with other factors, lead the patient to enter a ventricular escape rhythm, ultimately resulting in cardiogenic shock.

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We present a case involving an 87-year-old woman who had a hyperkalemic emergency. This condition was further complicated by complete heart block (CHB) and seizure-like activity. This case emphasizes the challenge of differentiating between seizures and convulsive syncope.

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