Publications by authors named "Sujin Hwang"

Background: In stroke rehabilitation, the selection of appropriate assistive devices is of paramount importance for patients. Specifically, the choice of device can significantly influence the functional recovery of the upper limb, impacting their overall activities or functional tasks.

Objectives: This review aimed to comprehensively analyze and summarize the clinical evidence from randomized controlled trials (RCTs) regarding the therapeutic effects of commonly used assistive devices on upper extremity function in patients with stroke.

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Alzheimer's disease (AD) is a representative cause of dementia and is caused by neuronal loss, leading to the accumulation of aberrant neuritic plaques and the formation of neurofibrillary tangles. Oxidative stress is involved in the impaired clearance of amyloid beta (Aβ), and Aβ-induced oxidative stress causes AD by inducing the formation of neurofibrillary tangles. Hwangryunhaedok-tang (HHT, Kracie K-09), a traditional herbal medicine prescription, has shown therapeutic effects on various diseases.

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Background: Electrical stimulation techniques are widely utilized for rehabilitation management in individuals with stroke patients.

Objectives: This review aims to summarize the rehabilitative effects of electrical stimulation therapy on gait performance in stroke patients.

Methods: This review included randomized controlled trials (RCT) investigating the therapeutic effects of electrical stimulation in stroke patients throughout five databases.

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This study aimed to comprehensively summarize assistive technology devices for postural control and gait performance in stroke patients. In the study, we searched for randomized controlled trials (RCTs) published until 31 December 2022 in four electrical databases. The most frequently applied assistive technology devices involving postural stability and gait function for stroke patients were robot-assistive technology devices.

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This study applied a molecular-based method to detect parainfluenza virus 5 (PIV5) collected from 2016 to 2018 in nine provinces of Republic of Korea. We demonstrated that PIV5 was detectable in both serum and pooled organs at an average positive rate of 1.78% (99/5566).

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Background: Ever since the start of the coronavirus disease 2019 (COVID-19) pandemic, students have been spending an increasingly longer time staring at electrical devices to take online courses.

Objective: This study aimed to investigate the effect of the virtual class environment on eye and musculoskeletal problems in university students during the COVID-19 pandemic.

Methods: A total of 365 university students were enrolled in this study.

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Article Synopsis
  • The article discusses the discovery of germline biallelic null mutations in the ARPC5 gene, affecting the Arp2/3 actin nucleator complex, in two patients with severe recurrent infections, early-onset autoimmunity, and other health issues.
  • The mutations lead to compromised functions across multiple cell types, but restoring protein expression in vitro can rescue the complex's conformation and functions.
  • The study reveals that IL-6 signaling is uniquely affected, with important distinctions between classical and trans-signaling pathways, suggesting potential therapeutic targets for treatment.
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Driving enables stroke survivors to freely participate in social integration. The purpose of this review was to summarize the evidence for the therapeutic effects of driving rehabilitation for patients when they return to driving after stroke and evaluate the predictors of returning to driving to identify the factors impacting their driving rehabilitation. This study employed a systematic review and meta-analysis.

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Ulcerative colitis (UC) is an inflammatory bowel disease caused by various factors, including intestinal inflammation and barrier dysfunction. Herein, we determined the effects of fermented glutinous rice (FGR) on the expression of tight junction proteins and levels of inflammation and apoptosis in the dextran sodium sulfate (DSS)-induced acute colitis model. FGR was orally administered once per day to C57BL/6J mice with colitis induced by 5% DSS in drinking water.

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  • This study focused on a holistic genetic evaluation of patients with immune-related issues, recognizing that multiple genetic factors might contribute to their health conditions rather than just a single gene explanation.
  • Researchers analyzed genetic data from 1505 individuals, uncovering 361 molecular diagnoses linked to various immune presentations, with significant updates obtained through reanalysis and new gene discoveries.
  • The findings indicate that the majority of molecular diagnoses could inform treatment options, highlighting the potential for whole exome analysis to enhance our understanding of genetic contributions to health on a large scale.
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Interleukin-13 receptor subunit alpha-2 (IL-13Rα2, CD213A), a high-affinity membrane receptor of the anti-inflammatory Th2 cytokine IL-13, is overexpressed in a variety of solid tumors and is correlated with poor prognosis in glioblastoma, colorectal cancer, adrenocortical carcinoma, pancreatic cancer, and breast cancer. While initially hypothesized as a decoy receptor for IL-13-mediated signaling, recent evidence demonstrates IL-13 can signal through IL-13Rα2 in human cells. In addition, expression of IL-13Rα2 and IL-13Rα2-mediated signaling has been shown to promote tumor proliferation, cell survival, tumor progression, invasion, and metastasis.

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Integrin CD103 mediates the adhesion and tissue retention of T cells by binding to E-cadherin which is abundant on epithelial cells. Notably, CD103 is highly expressed on CD8 T cells but conspicuously absent on most CD4 T cells. The mechanism controlling such lineage-specific expression of CD103 remains unclear.

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Article Synopsis
  • Pediatric endogenous Cushing syndrome (eCs) is caused by pituitary tumors that produce corticotropin, leading to symptoms similar to long-term glucocorticoid therapy, which allows researchers to study its effects on immunity.
  • The study involved immunologic analyses of healthy pediatric eCs patients before and after tumor removal, using various advanced techniques to investigate T-cell function and responses.
  • Findings revealed that eCs patients had decreased thymic output and T-cell levels, alongside increased apoptosis, but these issues normalized post-surgery; additionally, the introduction of IL-21 showed potential in mitigating the adverse effects of glucocorticoids on T-cells.
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Background: Brain-computer interface-controlled functional electrical stimulation (BCI-FES) approaches as new feedback training is increasingly being investigated for its usefulness in improving the health of adults or partially impaired upper extremity function in individuals with stroke.

Objective: To evaluate the effects of BCI-FES on postural control and gait performance in individuals with chronic hemiparetic stroke.

Methods: A total of 25 individuals with chronic hemiparetic stroke (13 individuals received BCI-FES and 12 individuals received functional electrical stimulation [FES]).

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Background: EMG-triggered functional electrical stimulation (EMG-triggered FES) is one of the effective method for improving task performance and providing movement re-learning of central nervous system. Proprioceptive neuromuscular facilitation (PNF) is a traditional manual therapy that is used as a method to regain normal movement by providing specific training methods.

Objective: The purpose of this study was to investigate the effect of EMG-triggered FES during trunk pattern in PNF on trunk control, balance, and gait of stroke patients.

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Unlike IL-7, which is known to be critical for T cell thymic development, the role of IL-21 in this process is still controversial. IL-21 has been shown to accelerate thymic recovery in mice treated with glucocorticoids and revives the peripheral T cell pool in aged animals. However, mice with a defect in IL-21 signaling exhibit normal thymic cellularity, challenging the importance of this cytokine in the thymic developmental process.

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We aimed to conduct a systematic literature review with a meta-analysis to investigate whether virtual reality (VR) approaches have beneficial effects on the upper extremity function and independent activities of stroke survivors. Experimental studies published between 2007 and 2017 were searched from two databases (EBSCOhost and PubMed). This study reviewed abstracts and assessed full articles to obtain evidence on qualitative studies.

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, an apicomplexan parasite, is a pathogenic protozoan that can infect the central nervous system. In pregnant women, infection can result in congenital problems of the fetus, while in immunocompromised individual it can lead to severe neurological consequences. Although CD8 T cells play an important effector role in controlling the chronic infection, their maintenance is dependent on the critical help provided by CD4 T cells.

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Naïve and memory T cells co-exist in the peripheral T cell pool, but the cellular mechanisms that maintain the balance and homeostasis of these two populations remain mostly unclear. To address this question, here, we assessed homeostatic proliferation and repopulation kinetics of adoptively transferred naïve and memory T cells in lymphopenic host mice. We identified distinct kinetics of proliferation and tissue-distribution between naïve and memory donor T cells, which resulted in the occupancy of the peripheral T cell pool by mostly naïve-origin T cells in short term (<1 week), but, in a dramatic reversal, by mostly memory-origin T cells in long term (>4 weeks).

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Objectives: Negative behavioral problems often occur following the onset of neurodevelopmental disorders and have an overall impact on the affected children, specifically in terms of their social developmental level. In children, social development behavior has been shown to spontaneously mature over time with the cognitive therapy intervention effects. This study performed a meta-analysis to provide a statistical synopsis of the available evidence of social development behavioral changes following cognitive therapy in children with neurodevelopmental disorders.

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The cytokine receptor subunit γc provides critical signals for T cell survival and differentiation. We investigated the molecular mechanism that controls the cell surface abundance of γc during T cell development in the thymus. We found that the amount of γc was low on CD4CD8 double-positive (DP) thymocytes before their positive selection to become mature T cells.

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CD8 T cells are important for maintaining the chronicity of infection. In a encephalitis susceptible model, we recently demonstrated that CD4 T cells play an essential helper role in the maintenance of the effector response and CD8 T cell dysfunctionality was linked to CD4 T cell exhaustion. However, CD4 T cells are constituted of different subsets with various functions and the population(s) providing help to the CD8 T cells has not yet been determined.

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Background: A variety of cognitive rehabilitation has gained popularity in early childhood with neurodevelopmental disorder at clinical rehabilitation settings.

Objectives: The purpose of this review was to analyze the cognitive therapies used and to analyze the methods applied in children with neurodevelopmental disorders.

Methods: This study searched for experimental studies published between 2006 and 2016 using two databases including EBSCOhost and PubMed.

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