Publications by authors named "Hee Yun Kim"

Mast cells have a detrimental impact on coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Sambou Bamboo salt™ (BS) suppresses mast cell-mediated inflammatory response and enhances immunity. In this study, we investigated the regulatory effects of BS on expression of angiotensin-converting enzyme 2 (ACE2) and transmembrane protease/serine subfamily member 2 (TMPRSS2) in human mast cell line (HMC)-1 cells.

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Eunkyo-san is widely used in the treatment of severe respiratory infections. Mast cells not only serve as host cells for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), but also they also exacerbate Coronavirus disease in 2019 (COVID-19) by causing a cytokine storm. Here we investigated whether Eunkyo-san and its active compound naringenin regulate the expression of inflammatory cytokines and factors connected to viral infection in activated human mast cell line, HMC-1 cells.

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The anti-cancer impact of an allergic reaction is strongly linked to immunity enhancement. Trimethoprim-sulfamethoxazole (TMP-SMX), an antibiotic, has potential immunomodulatory effects, but has side effects such as allergies. Thus far, the effects and underlying mechanisms of TMP-SMX in melanoma have not been clarified.

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Article Synopsis
  • - The study investigates the effects of tormentic acid (TA), known for its antioxidant and anti-inflammatory properties, on fatigue using C2C12 myoblast cells and animal models (treadmill stress test and forced swimming test).
  • - Results show that TA reduces markers of oxidative stress and inflammation, such as MDA and IL-6, while enhancing antioxidant enzyme activities, promoting energy storage in cells, and improving exercise performance in animal tests.
  • - The findings suggest that TA can effectively combat fatigue by regulating oxidative stress and energy metabolism, indicating its potential as a beneficial supplement for enhancing physical function.
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Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection activates mast cells and induces a cytokine storm, leading to severe Coronavirus disease in 2019 (COVID-19). SARS-CoV-2 employs angiotensin-converting enzyme 2 (ACE2) for cell entry. In the present study, the expression of ACE2 and its mechanism in activated mast cells were studied utilizing the human mast cell line, HMC-1 cells and it was elucidated whether dexamethasone used as a treatment for COVID-19 could regulate ACE2 expression.

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One of the interfering factors in Coronavirus disease 2019 (COVID-19) is the cytokine storm, which contributes to hyperinflammation. Mast cells cause COVID-19 hyperinflammation by increasing inflammatory cytokine levels. We investigated whether caudatin, an active compound of , could suppress inflammatory response signaling in human mast cell line, HMC-1 cells.

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Cynanchum wilfordii and Humulus lupulus L. have been used for their various pharmacological properties in South Korea as a traditional medicine or health functional food, respectively, and their intake may relieve menopausal symptoms. The purpose of current study was to determine the effect of compound of Cynanchum wilfordii and Humulus lupulus L.

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Background: Oxidative stress and inflammation are involved in chronic fatigue. Euscaphic acid (EA) is an active compound of (Loquat) and has anti-oxidative effect.

Methods: The goal of present study is to prove whether EA could relieve fatigue through enhancing anti-oxidant and anti-inflammatory effects in models.

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An increase in the number of mast cells could contribute to inflammatory diseases and pathologic conditions. A receptor activator of NF-κB ligand (RANKL)/RANK system is one of the key signaling pathways accelerating mast cell-mediated allergic inflammatory reactions. However, the biological functions of RANKL in mast cell proliferation remains to be clarified.

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Background: Many people are troubled by allergic inflammation including ocular allergic diseases, anaphylaxis, allergic rhinitis, atopic dermatitis, and eczema. Consequently, finding medications for use in allergic inflammation therapy is crucial in human health. Manoalide, a marine natural product isolated as an anti-bacterial metabolite from , is a calcium channel blocker.

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Bamboo salt has anti-allergic, anti-inflammatory, anti-oxidant, diabetics, anti-aging, and immune-enhancing effects, which are closely related to anti-cancer effect. The aim of this study was to investigate the anti-cancer effects of Sambou bamboo salt (SBS) in melanoma skin cancer in vivo and in vitro models. SBS-administered mice effectively reduced tumor growth and increased survival rate compared with B16F10 cell-inoculated mice without tissue damage, hepatotoxicity, and nephrotoxicity.

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Surfactin is a mast cell degranulator, that increases the immune response via the degranulation of mast cells. Recently, numerous studies reported that allergic reactions play an important role in the reduction of melanoma development. So, this study aimed to investigate the anti-cancer effects of surfactin in a melanoma skin cancer in vivo model and a melanoma cell line, B16F10.

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Most allergic disease studies have focused on postnatal chemical or microbial exposure. Recent studies have indicated that allergic diseases are associated with the immunological interaction between the mother and her offspring, but the relevant mechanisms are unclear. The aim of this study was to assess whether maternal exposure to allergens during pregnancy could affect allergic rhinitis (AR) in the offspring.

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Inflammation is increased by infection with pathogens such as viruses, bacteria, and parasites. High levels of inflammatory mediators and infiltration of macrophages into inflammatory lesions were reported in severe inflammatory diseases. Here, the aim of this study was to evaluate an anti-inflammatory activity of di-2-pyridylketone-4,4-dimethyl-3-thiosemicarbazone (Dp44mT) on lipopolysaccharide (LPS)-stimulated RAW 264.

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Aronia, a healthy fruit well known as black chokeberry, has health-promoting effects on hypertension, oxidative stress, and diabetes. Despite many reports of bioactivities of aronia, there is little scientific research on the potential for immune-enhancement. So, anthocyanin-fucoidan nanocomplex (AFNC, a nanocomplex of aronia extract and fucoidan) has been developed to improve immune-enhancement.

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Article Synopsis
  • RANKL plays a key role in osteoclast differentiation and triggers inflammatory responses through TSLP production, while EGCG, a compound in green tea, has various health benefits but its effects on RANKL-induced inflammation are not well understood.
  • This study shows that EGCG inhibits the activation of important signaling pathways (PI3 Kinase and MAP Kinase) and reduces inflammatory markers (like TSLP and IL-1β) in RANKL-stimulated human mast cells (HMC-1).
  • The findings suggest that EGCG could be a potential natural treatment for inflammatory diseases linked to RANKL by targeting specific molecular pathways in mast cells without harming the cells themselves.
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Syndrome of inappropriate antidiuretic hormone secretion (SIADH) is characterized by hyponatremia, low serum osmolality, and clinical euvolemia in the absence of diuretic medication. And the causes of SIADH are various, antipsychotic agents and traumatic brain injury (TBI) are well known. Quetiapine is often chosen to manage the maladaptive behavior of patients with post-TBI.

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Madi-Ryuk (MDR) is a traditional Korean medicine and it has been widely used in Korea to treat arthritis and we previously reported the anti-allergic inflammatory effect of MDR in vitro model. However, therapeutic evidence of MDR on in vivo model of allergic inflammatory reaction has not yet been demonstrated. The research purpose was to investigate the efficacy of MDR and its active ingredient tannic acid (TA) in ovalbumin (OVA)-induced AR mice model.

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Blockade of caspase-1 was reported to be a new target for allergic inflammation treatment. Here, we present the effect of linoleic acid (LA), a constituent of Allium hookeri (AH), to alleviate mast cell-mediated allergic inflammation. Pretreatment of LA and AH significantly reduced caspase-1 activation without displaying host cell cytotoxicity in activated human mast cells.

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Objective: Natural products are well known as the source of drugs in the treatment of allergic inflammation. Chrysophanol, an anthraquinone from the AST2017-01 extract, showed a beneficial anti-inflammatory effect on activated human mast cells in our previous study. However, a regulatory effect of AST2017-01 and chrysophanol on mast cell proliferation induced by thymic stromal lymphopoietin (TSLP) remains unclear.

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Objective: AST2017-01 is developed to be used for treatment and prevention of allergic diseases and composed of processed-Cordyceps militaris and processed-Rumex crispus. But, effect of AST2017-01 remains unclear in an allergic rhinitis (AR). So, this study aimed to explore the effects of AST2017-01 in ovalbumin (OVA)-induced AR animal model.

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Background And Purpose: As an osteoclast differentiation factor, receptor activator of NF-κB ligand (RANKL) is produced by various immune cells and may be involved in the pathogenesis of osteoporosis and inflammation. Although RANKL is expressed in most immune cells and tissues, it is not clear how this might affect allergic inflammation.

Experimental Approach: The roles of RANKL in allergic rhinitis (AR) were analysed in an ovalbumin (OVA)-induced animal model, human subjects, and a human mast cell line (HMC-1).

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Purpose: Recently, Lactobacillus plantarum (nF1) has been reported to have immune-enhancing effects in an immunosuppressed-animal model. Natural killer (NK) cells and macrophages play important roles in the immune responses. However, immunomodulatory effects of heat-treated Lactobacillus plantarum-nF1 (hLp-nF1) on the activation of NK cells and macrophages have not been elucidated.

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Objectives: This study aimed to compare the quality of life reported by patients with attention-deficit/hyperactivity disorder (ADHD) to the patients' quality of life as reported by their caregivers. In addition, it aimed to examine how emotional problems, including depression and anxiety, and the severity of the symptoms affect the quality of life reported by the patients and their caregivers.

Methods: The patients' quality of life and their degree of depression and anxiety were measured using the Pediatric Quality of Life Inventory (PedsQL) 4.

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