1.Erratum: Correction of the Funding Statement: Feasibility and Therapeutic Effects of a Novel Magnet-Based Device for Hand Rehabilitation: a Pilot Study
Brain & Neurorehabilitation 2020;13(1):10-
In the article, the funding source was missed.
Financial Management
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Hand
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Pilot Projects
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Rehabilitation
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Therapeutic Uses
2.Feasibility and Therapeutic Effects of a Novel Magnet-Based Device for Hand Rehabilitation: a Pilot Study
Geon Sang LEE ; Sung Hoon KIM ; Dong Min JI ; Da Hye KONG ; Yu Jin JUNG ; Min Cheol JOO ; Na Ri YUN ; Soo Hyun SOH ; Ji Woo PARK ; Min Su KIM
Brain & Neurorehabilitation 2019;12(1):e7-
The purpose of this study was to investigate the feasibility and therapeutic effects of a novel concept hand rehabilitation device based on magnetics for subacute stroke patients with hand motor impairment. We developed an end effector type device that can induce various movements of the fingers in accordance with a magnetic field direction using electromagnets and permanent magnets. Subacute stroke patients with hand motor impairments were recruited and divided into two rehabilitation groups. Conventional rehabilitation therapies were also conducted equally in both groups. Active-assisted training of the affected hand was additionally administered for 30 minutes per day for 4 weeks using the developed equipment in the intervention group. Hand motor function and the activities of daily living were evaluated before and after the intervention. The Manual Function Test score significantly increased in the intervention group after 4 weeks of treatment (p = 0.039), and there was a significant difference in the degree of improvement between the two groups (p = 0.016). The scores of the motor Fugl-Meyer Assessment of the upper limb, the Wolf Motor Function Test score and time, and the motor Functional Independence Measure also improved in both groups (all p < 0.05). In addition, the patients in the intervention group showed greater improvements in these outcome measures than those in the control group did (all p < 0.05). An adjuvant rehabilitation therapy using a magnetic based device can be helpful to improve the hand motor function and activities of daily life in subacute stroke patients.
Activities of Daily Living
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Fingers
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Hand
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Humans
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Magnetic Fields
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Magnets
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Outcome Assessment (Health Care)
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Pilot Projects
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Rehabilitation
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Robotics
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Stroke
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Therapeutic Uses
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Upper Extremity
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Wolves
3.A Fusion Protein of Derp2 Allergen and Flagellin Suppresses Experimental Allergic Asthma
Wenzhi TAN ; Jin Hai ZHENG ; Tra My Nu DUONG ; Young Il KOH ; Shee Eun LEE ; Joon Haeng RHEE
Allergy, Asthma & Immunology Research 2019;11(2):254-266
PURPOSE: The house dust mite (HDM) is one of the most important sources of indoor allergens and a significant cause of allergic rhinitis and allergic asthma. Our previous studies demonstrated that Vibrio vulnificus flagellin B (FlaB) plus allergen as a co-treatment mixture improved lung function and inhibited eosinophilic airway inflammation through the Toll-like receptor 5 signaling pathway in an ovalbumin (OVA)- or HDM-induced mouse asthma model. In the present study, we fused the major mite allergen Derp2 to FlaB and compared the therapeutic effects of the Derp2-FlaB fusion protein with those of a mixture of Derp2 and FlaB in a Derp2-induced mouse asthma model. METHODS: BALB/c mice sensitized with Derp2 + HDM were treated with Derp2, a Derp2 plus FlaB (Derp2 + FlaB) mixture, or the Derp2-FlaB fusion protein 3 times at 1-week intervals. Seven days after the final treatment, the mice were challenged intranasally with Derp2, and airway responses and Derp2-specific immune responses were evaluated. RESULTS: The Derp2-FlaB fusion protein was significantly more efficacious in reducing airway hyperresponsiveness, lung eosinophil infiltration, and Derp2-specific IgE than the Derp2 + FlaB mixture. CONCLUSIONS: The Derp2-FlaB fusion protein showed a strong anti-asthma immunomodulatory capacity, leading to the prevention of airway inflammatory responses in a murine disease model through the inhibition of Th2 responses. These findings suggest that the Derp2-FlaB fusion protein would be a promising vaccine candidate for HDM-mediated allergic asthma therapy.
Allergens
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Animals
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Asthma
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Eosinophils
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Flagellin
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Immunoglobulin E
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Inflammation
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Lung
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Mice
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Mites
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Ovalbumin
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Pyroglyphidae
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Rhinitis, Allergic
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Therapeutic Uses
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Toll-Like Receptor 5
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Vibrio vulnificus
4.Anti-melanogenic effects of Hordeum vulgare L. barely sprout extract in murine B16F10 melanoma cells
Jeong Hwa CHOI ; Jong Gi JUNG ; Jung Eun KIM ; Mi Ae BANG
Journal of Nutrition and Health 2019;52(2):168-175
PURPOSE: Barely sprout is a well-known oriental herbal medicine with a wide range of health benefits. Recent studies have provided scientific evidence of its therapeutic effects with expanded application. This study investigated anti-melanogenic effect of barley sprout water extract (BSE) in murine melanocyte B16F10. METHODS: Various concentrations (0, 50, 125, and 250 µg/mL) of BSE and arbutin (150 ppm) were applied to B16F10 stimulated with or without alpha-melanocyte stimulating hormone (100 nM) for 72 hours. The whitening potency of BSE was determined altered cellular melanin contents. Activity and expression of tyrosinase and microphthalmia-associated transcription factor (MITF) were also assayed. RESULTS: Experimental results revealed that treatment with BSE reduced cellular melanin production by approximately 40% compared to the control. Molecular findings supported that suppressed activity and expression of tyrosinase and MITF proteins by BSE were associated with declined cellular melanogenesis. Furthermore, anti-melanogenic effect of BSE (250 µg/mL) was similar to that of arbutin, a commonly used whitening agent. Lastly, polyphenols including p-coumaric, ferulic, and vanillic acids were identified in BSE using HPLC analyses. They might be potential active ingredients showing such melanogenesis-reducing effect. CONCLUSION: BSE was evident to possess favorable anti-melanogenic potency in an in vitro model. As a natural food sourced material, BSE could be an effective depigmentation agent with potential application in pharmaceutical and cosmetic industries.
Arbutin
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Chromatography, High Pressure Liquid
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Herbal Medicine
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Hordeum
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In Vitro Techniques
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Insurance Benefits
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Melanins
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Melanocytes
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Melanoma
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Microphthalmia-Associated Transcription Factor
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Monophenol Monooxygenase
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Polyphenols
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Therapeutic Uses
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Vanillic Acid
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Water
5.Efficacy and Utility of Wet Wrap Dressing for Patients with Pediatric Atopic Dermatitis
Joong Woon CHOI ; Seung Hee LOH ; Bark Lynn LEW ; Woo Young SIM
Korean Journal of Dermatology 2019;57(6):301-306
BACKGROUND: Management of atopic dermatitis (AD) involves the regular use of emollients together with topical steroids or calcineurin inhibitors for acute flares. However, the long-term use of oral medications in young children may have certain limitations. Wet wrap dressing (WWD) is an interesting alternative therapy for the short-term control of severe or refractory flares, thus avoiding the use of systemic treatments. OBJECTIVE: This study aimed to compare the efficacy between WWD and topical steroid agents and to control and estimate the utility of WWD in pediatric AD. METHODS: A total of 40 patients with mild-to-severe AD (eczema area and severity index of ≥3) aged <13 years were included in this study. Twenty patients were treated with WWD using two layers of cotton bandages or garments (Tubifast™), and the remaining were applied with topical steroid agents without cotton bandages. Improvement in severity of atopic dermatitis was evaluated using the eczema area and severity index (EASI). Improvement in skin barrier dysfunction was evaluated by measuring the transepidermal water loss (TEWL). We compared the two groups after 1 week of treatment using analysis of covariance and t-test. Furthermore, we surveyed the study groups using a questionnaire to estimate the utility of WWD and its adverse effects as well as to evaluate subjective outcomes of WWD. RESULTS: There were significant reductions in the mean EASI (−6.3, 95% confidence interval [CI]: −7.5 to −5.1, p=0.013) and TEWL (−26.7, 95% CI: −31.2 to −22.3, p=0.002) after 1 week of WWD treatment compared with the mean EASI (−4.0, 95% CI: −5.2 to −2.9) and TEWL (−15.4, 95% CI: −19.8 to −10.9) of the control group. Results of patient self-assessment and scores in the visual analogue scale (VAS) for pruritus were improved in both groups, but the differences were not statistically significant. Usefulness of WWD as an alternative therapy for the conventional therapy was satisfactory. CONCLUSION: This study is meaningful in that it estimates both the subjective and objective efficacy of WWD. In view of these findings, WWD showed superior therapeutic effects than conventional steroid application in the treatment of AD in children, with good compliance of patients and parent-caregivers.
Bandages
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Calcineurin Inhibitors
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Child
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Clothing
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Compliance
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Dermatitis, Atopic
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Eczema
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Emollients
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Humans
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Pruritus
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Self-Assessment
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Skin
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Steroids
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Therapeutic Uses
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Water
6.Dioscorea japonica Thunb. Ethanolic Extract Attenuated Oxazolone-Induced Atopic Dermatitis-like Skin Lesions in BALB/c Mice
Jonghwan JEGAL ; No June PARK ; Beom Geun JO ; Su Nam KIM ; Min Hye YANG
Natural Product Sciences 2019;25(3):261-267
The rhizomes of Dioscorea japonica Thunb. are widely consumed as food and also used to treat diabetes and polyuria in Korea. This study was undertaken to study the anti-atopic dermatitis effects of a 95% ethanolic extract (DJE) of D. japonica in an oxazolone-stimulated murine model of atopic dermatitis (AD). The therapeutic effects of DJE on AD-like skin lesions were assessed on both ears. DJE (1%) or dexamethasone (0.5%; the positive control) were applied to skin lesions for three weeks. Serum levels of IgE and IL-4 were assessed by ELISA (enzyme-linked immunosorbent assay). Histopathological examinations were performed by hematoxylin and eosin (H&E) and toluidine blue staining and revealed DJE significantly reduced dermal thickness and inflammatory cell infiltration when applied to oxazolone-treated ear skin. DJE-treated AD mice also showed lower serum levels of IgE and IL-4 than oxazolone-stimulated controls. Our findings demonstrate DJE might be a useful safe, topical agent for the treatment of atopic diseases.
Animals
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Dermatitis
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Dermatitis, Atopic
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Dexamethasone
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Dioscorea
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Ear
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Enzyme-Linked Immunosorbent Assay
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Eosine Yellowish-(YS)
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Ethanol
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Hematoxylin
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Immunoglobulin E
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Interleukin-4
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Korea
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Mice
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Oxazolone
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Polyuria
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Rhizome
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Skin
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Therapeutic Uses
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Tolonium Chloride
7.Effects of rosmarinic acid on immunoregulatory activity and hepatocellular carcinoma cell apoptosis in H22 tumor-bearing mice
Wen CAO ; Kai MO ; Sijun WEI ; Xiaobu LAN ; Wenjuan ZHANG ; Weizhe JIANG
The Korean Journal of Physiology and Pharmacology 2019;23(6):501-508
Rosmarinic acid (RA) is a natural polyphenolic compound that exists in many medicinal species of Boraginaceae and Lamiaceae. The previous studies have revealed that RA had therapeutic effects on hepatocellular carcinoma (HCC) in the H22-xenograft models by inhibiting the inflammatory cytokines and NF-κB p65 pathway in the tumor microenvironment. However, its molecular mechanisms of immunoregulation and pro-apoptotic effect in HCC have not been fully explored. In the present study, RA at 75, 150, and 300 mg/kg was given to H22 tumor-bearing mice via gavage once a day for 10 days. The results showed that RA can effectively inhibit the tumor growth through regulating the ratio of CD4⁺/CD8⁺ and the secretion of interleukin (IL)-2 and interferon-γ, inhibiting the expressions of IL-6, IL-10 and signal transducer and activator of transcription 3, thereby up-regulating Bax and Caspase-3 and down-regulating Bcl-2. The underlying mechanisms involved regulation of immune response and induction of HCC cell apoptosis. These results may provide a more comprehensive perspective to clarify the anti-tumor mechanism of RA in HCC.
Animals
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Apoptosis
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Boraginaceae
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Carcinoma, Hepatocellular
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Caspase 3
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Cytokines
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Interleukin-10
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Interleukin-6
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Interleukins
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Lamiaceae
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Mice
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STAT3 Transcription Factor
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Therapeutic Uses
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Tumor Microenvironment
8.Autologous Platelet-Rich Plasma for Nonhealing Ulcers: A Comparative Study
Maria TSACHIRIDI ; George GALYFOS ; Alexandros ANDREOU ; Argiri SIANOU ; Fragiska SIGALA ; George ZOGRAFOS ; Konstantinos FILIS
Vascular Specialist International 2019;35(1):22-27
PURPOSE: The use of platelet-rich plasma (PRP) for the treatment of nonhealing ulcers is a relatively new technique. Although it seems to result in a satisfying level of healing and low complication rates, data regarding its effectiveness remain sparse. This study aims to evaluate the potential therapeutic effects of PRP on chronic nonhealing ulcers. MATERIALS AND METHODS: This was a prospectively designed study comparing outcomes between patients treated with PRP (Group A, n=15) and patients treated conventionally (Group B, n=12) for different types of nonhealing ulcers. In Group A, PRP was produced from the patients’ own peripheral blood samples and was applied on the ulcer once every week. In Group B, patients were treated conventionally, without applying PRP. The total treatment period was 5 weeks. RESULTS: Both groups were similar regarding age, sex, comorbidities, and time of treatment. In Group A, patients showed a nonsignificant reduction of 4.5 mm2 in ulcer area (P=0.190) and a reduction of more than 1 mm in depth (P=0.0006), while Group B showed an increase of 108±80.5 mm2 in ulcer area after 5 weeks (P=0.016). The healing rate (HR) in Group A was stable and positive throughout the treatment period, while HR in Group B was initially negative but became positive after the 3rd week. CONCLUSION: PRP application once a week promotes the healing of chronic ulcers. It improves the ulcer’s depth and HR, although its effect on ulcer area seems to be nonsignificant. However, larger comparative series are still needed to confirm these findings.
Comorbidity
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Humans
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Platelet-Rich Plasma
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Prospective Studies
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Regeneration
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Therapeutic Uses
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Ulcer
9.Effect of Relaxin Expression from an Alginate Gel-Encapsulated Adenovirus on Scar Remodeling in a Pig Model
In Sik YUN ; Eunhye KANG ; Hyo Min AHN ; Yong Oock KIM ; Dong Kyun RAH ; Tai Suk ROH ; Won Jai LEE ; Chae Ok YUN
Yonsei Medical Journal 2019;60(9):854-863
PURPOSE: Relaxin (RLX) is a transforming growth factor-β1 (TGF-β1) antagonist that is believed to function as a potent collagen re-arranger and a major suppressor of extracellular matrix components. Adenoviruses (Ads) are accepted vectors for cancer gene therapy. However, repeated treatments of Ad are limited by short-term biological activity in vivo. The efficacy of sustained RLX expression to scar remodeling was assessed using an injectable alginate gel-matrix system. MATERIALS AND METHODS: Pig scar tissue was treated with relaxin-expressing Ad loaded in alginate gel (gel/Ad-RLX). Surface areas, color, and pliability of scars were compared, and various factors influencing scar formation and collagen arrangement were analyzed. RESULTS: Gel/Ad-RLX decreased scar size, color index, and pliability. Immunohistochemistry showed decreased levels of major extracellular matrix proteins in the gel/Ad-RLX-treated group. Furthermore, treatment with gel/Ad-RLX reduced expression of tissue inhibitor of metalloproteinase-1 and alpha-smooth muscle actin and markedly increased expression of matrix metalloproteinase-1 in pig scar tissues. Gel/Ad-RLX also significantly downregulated TGF-β1 and upregulated TGF-β3 mRNAs in pig scar tissues. CONCLUSION: These results support a prominent role for RLX in scar remodeling and suggest that gel/Ad-RLX may have therapeutic effects on scar formation.
Actins
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Adenoviridae
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Cicatrix
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Collagen
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Extracellular Matrix
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Extracellular Matrix Proteins
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Genes, Neoplasm
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Genetic Therapy
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Immunohistochemistry
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Matrix Metalloproteinase 1
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Pliability
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Relaxin
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RNA, Messenger
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Therapeutic Uses
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Tissue Inhibitor of Metalloproteinase-1
10.Therapeutic Effect of Glucosamine on an Atopic Dermatitis Animal Model
Hee Seong YOON ; Ji Won BYUN ; Jeonghyun SHIN ; Young Hyo KIM ; Gwang Seong CHOI
Annals of Dermatology 2019;31(5):538-544
BACKGROUND: Recent studies have reported that glucosamine (GlcN) showed therapeutic effects in allergic diseases such as asthma and rhinitis, and its mechanisms include the suppression of T helper type 2 immune responses and the nuclear factor-κB pathway. OBJECTIVE: We aimed to investigate the effect of GlcN on atopic dermatitis (AD) in an animal model. METHODS: Twenty-five BALB/c mice were divided into five groups (groups A~E). Group A was the phosphate-buffered saline (PBS)-treated group without AD induction. Group B was the PBS control group with AD induction. Groups C to E were the AD induction groups, which were treated with three different doses of GlcN (10 mg, 20 mg, and 40 mg, respectively). Histopathological examination was performed after GlcN administration. Interleukin (IL)-4, IL-13, and IL-17 cytokine levels were measured by enzyme-linked immunosorbent assay using skin biopsy specimens. Serum total immunoglobulin E (IgE) concentrations were measured before and after administration with GlcN or PBS. RESULTS: Clinical dermatitis scores decreased with increasing GlcN dose (p<0.001). Concentrations of tissue IL-13 and IL-17 decreased after GlcN administration (each group: p=0.002 and p<0.001, respectively), but the concentrations of tissue IL-4 did not show differences across groups. Serum IgE levels tended to be lower after GlcN administration (p=0.004). Histopathological scores were not significantly different among groups B~E (p=0.394). CONCLUSION: GlcN improved AD symptoms and decreased tissue IL-13, IL-17, and serum total IgE levels in an animal model.
Allergy and Immunology
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Animals
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Anti-Allergic Agents
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Asthma
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Biopsy
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Dermatitis
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Dermatitis, Atopic
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Enzyme-Linked Immunosorbent Assay
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Glucosamine
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Immunoglobulin E
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Immunoglobulins
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Interleukin-13
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Interleukin-17
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Interleukin-4
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Interleukins
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Mice
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Models, Animal
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Rhinitis
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Skin
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Therapeutic Uses

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