206 results match your criteria: "Youngsan University.[Affiliation]"

To study the dynamic nature of brain activity, functional magnetic resonance imaging (fMRI) data is useful including some temporal dependencies between the corresponding neural activity estimates. Recent studies have shown that the functional connectivity (FC) varies according to time and location which should be incorporated into the model. Modeling this dynamic FC (DFC) requires time-varying measures of spatial region of interest (ROI) sets.

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Hypothermic treatment is known to protect against cardiac arrest (CA) and improve survival rate. However, few studies have evaluated the CA-induced liver damage and the effects of hypothermia on this damage. Therefore, the aim of the present study was to determine possible protective effects of hypothermia on the liver after asphyxial CA.

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Neuroprotective Effects of Salicin in a Gerbil Model of Transient Forebrain Ischemia by Attenuating Oxidative Stress and Activating PI3K/Akt/GSK3β Pathway.

Antioxidants (Basel)

April 2021

Department of Biomedical Science, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Gangwon, Korea.

Salicin is a major natural compound of willow bark and displays diverse beneficial biological properties, such as antioxidant activity. However, little information available for the neuroprotective potential of salicin against ischemic brain injury has been reported. Thus, this study was performed to investigate the neuroprotective potential of salicin against ischemia and reperfusion (IR) injury and its mechanisms in the hippocampus using a gerbil model of 5-min transient ischemia (TI) in the forebrain, in which a massive loss (death) of pyramidal neurons cells occurred in the subfield Cornu Ammonis 1 (CA1) among the hippocampal subregions (CA1-3) at 5 days after TI.

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Ischemia-Reperfusion under Hyperthermia Increases Heme Oxygenase-1 in Pyramidal Neurons and Astrocytes with Accelerating Neuronal Loss in Gerbil Hippocampus.

Int J Mol Sci

April 2021

Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Gangwon, Korea.

It has been studied that the damage or death of neurons in the hippocampus is different according to hippocampal subregions, cornu ammonis 1-3 (CA1-3), after transient ischemia in the forebrain, showing that pyramidal neurons located in the subfield CA1 (CA1) are most vulnerable to this ischemia. Hyperthermia is a proven risk factor for brain ischemia and can develop more severe and extensive brain damage related with mortality rate. It is well known that heme oxygenase-1 (HO-1) activity and expression is increased by various stimuli in the brain, including hyperthermia.

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Nakai root contains decursin which exerts beneficial properties such as anti-amnesic and anti-inflammatory activities. Until now, however, the neuroprotective effects of decursin against transient ischemic injury in the forebrain have been insufficiently investigated. Here, we revealed that post-treatment with decursin and the root extract saved pyramidal neurons in the hippocampus following transient ischemia for 5 min in gerbil forebrain.

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(1) Background-The application of neuromuscular electrical stimulation (NMES) combined with low-intensity exercise to the elderly can be more efficient than low-intensity exercise only in terms of delaying the loss of muscle mass. We aimed to assess the adjunct of NMES to low-intensity lower limb strengthening exercise to prevent falls in frail elderly for a relatively short period of 4 weeks. (2) Methods-Thirty elderly women aged 65 or above were randomly categorized into three groups: control group (CON, = 8), exercise group (EX, = 10), and NMES with exercise group (EX + NMES, = 9).

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Titanium (Ti) is a widely used biomaterial for dental implants because of its outstanding biocompatibility for hard tissues. Osseointegration, the interaction between implanted biomaterials and living cells in bone, is essential for successful implantation. Rosmarinic acid (RA) is a plant-derived phytochemical with low toxicity and side effects and has various effects that can be applied as a therapeutic substance.

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Comparison of age-dependent alterations in thioredoxin 2 and thioredoxin reductase 2 expressions in hippocampi between mice and rats.

Lab Anim Res

March 2021

Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, 24252, Chuncheon, Gangwon, Republic of Korea.

Background: Aging is one of major causes triggering neurophysiological changes in many brain substructures, including the hippocampus, which has a major role in learning and memory. Thioredoxin (Trx) is a class of small redox proteins. Among the Trx family, Trx2 plays an important role in the regulation of mitochondrial membrane potential and is controlled by TrxR2.

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Background: The purpose of our study was to investigate the effects of extracorporeal shock wave therapy (ESWT) and hand massage therapy (HMT) on serum lipids and body composition in Korean women.

Materials And Methods: We randomly classified 60 participants into overweight and obese groups. Subjects received ESWT and HMT twice a week for six weeks (a total of 12 sessions).

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This study aims to identify how behavioral intentions are formed in the context of drone food delivery services using the moderating role before and after the outbreak of COVID-19. A conceptual model including eight hypotheses was developed and tested based on the data of two consumer samples, one collected before and the other after the outbreak of COVID-19. The data analysis results showed that perceived innovativeness positively affects attitude.

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A standard spinal traction (ST) device was designed to straighten the spine without considering physiological lumbar lordosis. Using lordotic curve-controlled traction (LCCT), which maintains the lordotic curve during traction, the traction force would be applied to the posterior spinal structure effectively. Thus, the purpose of our study was to evaluate real-time biomechanical changes while applying the LCCT and ST.

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It has been reported that CD200 (Cluster of Differentiation 200), expressed in neurons, regulates microglial activation in the central nervous system, and a decrease in CD200 expression causes an increase in microglial activation and neuronal loss. The aim of this study was to investigate time-dependent changes in CD200 expression in the hippocampus proper (CA1, 2, and 3 fields) after transient forebrain ischemia for 5 min in gerbils. In this study, 5-min ischemia evoked neuronal death (loss) of pyramidal neurons in the CA1 field, but not in the CA2/3 fields, at 5 days postischemia.

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(L.) PERS (EALP) and RUPR. (CMR) have been used in traditional remedies due to their medicinal effects.

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Article Synopsis
  • Calbindin-D28k (CB), a protein linked to neuronal functions, was examined in gerbils undergoing normal diet (ND) or intermittent fasting (IF) over three months, with some exposed to induced ischemic injuries.
  • Research found that while ischemic gerbils with IF showed increased CB expression in the hippocampal CA1 region, overall short-term memory remained unaffected by fasting.
  • Both groups of ischemic gerbils experienced significant neuroinflammation and damage, as indicated by increased gliosis and leakage of immunoglobulin G, suggesting that IF did not protect against nerve injury and may harm the blood-brain barrier.
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Background: Few studies have evaluated the effects of hypothermia on cardiac arrest (CA)-induced liver damage. This study aimed to investigate the effects of hypothermic therapy on the liver in a rat model of asphyxial cardiac arrest (ACA).

Methods: Rats were subjected to 5-minute ACA followed by return of spontaneous circulation (RoSC).

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Autonomic dysfunction in the central nervous system (CNS) can cause death after recovery from a cardiac arrest (CA). However, few studies on histopathological changes in animal models of CA have been reported. In this study, we investigated the prevalence of neuronal death and damage in various brain regions and the spinal cord at early times after asphyxial CA and we studied the relationship between the mortality rate and neuronal damage following hypothermic treatment after CA.

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Since ancient times, various herbs have been used in Asia, including Korea, China, and Japan, for wound healing and antiaging of the skin. In this study, we manufactured and chemically analyzed a novel distillate obtained from a fermented mixture of nine anti-inflammatory herbs (, , , , , , ., , and ).

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Risk Factors for Frailty in Critical Care Survivors: A secondary analysis.

Intensive Crit Care Nurs

June 2021

Department of Nursing, Youngsan University, Yangsan, South Korea. Electronic address:

Objectives: The purpose of this study was to investigate the prevalence of frailty and its risk factors among critical care survivors who were discharged after receiving treatment in an intensive care unit.

Methods: This was a secondary analysis using data from a methodological study conducted between June and August 2018. The sample included 494 adults who had been admitted to the intensive care unit for more than 48 hours within a year.

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Single-Trial EEG Connectivity of Default Mode Network Before and During Encoding Predicts Subsequent Memory Outcome.

Front Syst Neurosci

November 2020

Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea.

The successful memory process produces specific activity in the brain network. As the brain activity of the prestimulus and encoding phases has a crucial effect on subsequent memory outcomes (e.g.

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How to Form Behavioral Intentions in the Field of Drone Food Delivery Services: The Moderating Role of the COVID-19 Outbreak.

Int J Environ Res Public Health

December 2020

School of Hotel and Tourism Management, Youngsan University, 142 Bansong Beltway, Haeundae-gu, Busan 48015, Korea.

This study was designed to identify the significance of drone food delivery services using the moderating role of the outbreak of COVID-19. More specifically, this study proposed that there is a positive relationship between the overall image and the desire. Additionally, it was hypothesized that the desire helps to enhance two types of behavioral intentions, which included word-of-mouth intentions and the willingness to pay more.

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Today, semi-structured and unstructured data are mainly collected and analyzed for data analysis applicable to various systems. Such data have a dense distribution of space and usually contain outliers and noise data. There have been ongoing research studies on clustering algorithms to classify such data (outliers and noise data).

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Dracocephalum palmatum Stephan (DPS), a medicinal plant used by Russian nomads, has been known to exhibit antioxidant properties. However, to the best of our knowledge, its anticancer effect has not been elucidated. The present study aimed to evaluate the tumor‑suppressive effect of DPS extract (DPSE) in diffuse large B cell lymphoma (DLBCL) and the underlying mechanism.

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Many recent studies with the topic of innovative technologies have been executed in the viewpoint of adoption/readiness of one specific cutting-edge technology in the hospitality industry. Unlike with the existing studies, the present research comprehensively dealt with consumers' perceived performance of a smart hotel and explored its influence on the formation of attitude and word-of-mouth intention. Furthermore, this study encompassed drivers of technology readiness (optimism and innovativeness) as critical moderators.

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The purpose of this study was to investigate the effects of hyperbaric oxygen therapy (HBOT) on inflammation, the oxidative/antioxidant balance, and muscle damage after acute exercise in normobaric, normoxic (NN) and hypobaric, hypoxic (HH) environments. Eighteen healthy males were selected and randomly assigned to three groups: exercise in NN conditions (NN group, = 6), HBOT treatment after exercise in NN conditions (HNN group, = 6), and HBOT treatment after exercise in HH conditions (HHH group, = 6). All subjects performed treadmill running for 60 min at 75-80% maximum heart rate (HRmax) exercise intensity under each condition.

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