1.Benzydamine inhibits osteoclast differentiation and bone resorption down-regulation of interleukin-1 expression.
Han Saem SON ; Jiae LEE ; Hye In LEE ; Narae KIM ; You-Jin JO ; Gong-Rak LEE ; Seong-Eun HONG ; Minjeong KWON ; Nam Young KIM ; Hyun Jin KIM ; Jin Ha PARK ; Soo Young LEE ; Woojin JEONG
Acta Pharmaceutica Sinica B 2020;10(3):462-474
Bone diseases such as osteoporosis and periodontitis are induced by excessive osteoclastic activity, which is closely associated with inflammation. Benzydamine (BA) has been used as a cytokine-suppressive or non-steroidal anti-inflammatory drug that inhibits the production of pro-inflammatory cytokines or prostaglandins. However, its role in osteoclast differentiation and function remains unknown. Here, we explored the role of BA in regulating osteoclast differentiation and elucidated the underlying mechanism. BA inhibited osteoclast differentiation and strongly suppressed interleukin-1 (IL-1) production. BA inhibited osteoclast formation and bone resorption when added to bone marrow-derived macrophages and differentiated osteoclasts, and the inhibitory effect was reversed by IL-1 treatment. The reporter assay and the inhibitor study of IL-1 transcription suggested that BA inhibited nuclear factor-B and activator protein-1 by regulating IB kinase, extracellular signal regulated kinase and P38, resulting in the down-regulation of IL-1 expression. BA also promoted osteoblast differentiation. Furthermore, BA protected lipopolysaccharide- and ovariectomy-induced bone loss in mice, suggesting therapeutic potential against inflammation-induced bone diseases and postmenopausal osteoporosis.
2.Mediation effect of herpes zoster derived by statin use on cardiovascular disease risk
Sung-Han KIM ; Sung-Cheol YUN ; Young-Ho KHANG ; Min-Chul KIM ; Sun Uck KWON ; Gyung-Min PARK ; Young-Rak CHO ; Kwang Min LEE ; Moo Hyun KIM
The Korean Journal of Internal Medicine 2020;35(5):1220-1228
Background/Aims:
Although statins are widely used to reduce the risk of cardiovascular disease (CVD) including stroke and myocardial infarction (MI), it is reported that statin use increases the incidence of herpes zoster (HZ) that is associated with increased risk of CVD. So, we evaluated the mediation effect of HZ caused by statin use on CVD.
Methods:
We analyzed a prospective cohort from the National Health Insurance Service-database of South Korea. All individuals received a medical check-up and were followed-up from 2002 to 2013.
Results:
A total of 275,382 individuals > 40 years old were followed up for 11 years from 2003. Of these, 11,415 people (4%) were classified as statin users and 263,967 (96%) as non-statin users. Those who used statins had significantly lower risks of cardiovascular events, stroke, and MI compared with non-statin users; the adjusted hazard ratios in the multivariate analysis were 0.90 (95% confidence interval [CI], 0.82 to 0.98), 0.88 (95% CI, 0.80 to 0.98), and 0.91 (95% CI, 0.79 to 1.07), respectively. When we calculated the mediating effect of cardiovascular events by statin use through HZ, 11.6% of the total beneficial effect of cardiovascular events by statin use was mitigated through the occurrence of HZ caused by statin use. This mediating effect was higher in the younger age group (< 60 years).
Conclusions
This study showed that statin use reduced CVD by 10%, but the protective effect of statin use against CVD was mitigated by approximately 10% through the development of HZ caused by statin use.
4.Korean Pain Descriptors in Patients with Neuromusculoskeletal Pain
Gi Young PARK ; Dong Rak KWON ; In Ho WOO
Clinical Pain 2019;18(2):82-87
OBJECTIVE: To evaluate which Korean pain descriptors are frequently used in the patients with neuromusculoskeletal diseases and compare the frequency of Korean pain descriptor according to age, gender, pain pattern and intensity, and clinical diagnosis.METHOD: Two hundreds sixty nine patients with neuromusculoskeletal diseases were enrolled in this study. The patients were asked to fill out a pain questionnaire using Korean. The Korean pain descriptors were collected and classified according to neurophysiological mechanism. The frequency of Korean pain descriptor was analyzed by age, gender, pain pattern and intensity, and clinical diagnosis. They were divided into axial spine and peripheral joint pain group depending on the location of causal disease and shoulder pain descriptors were divided into intra-articular and bursa group.RESULTS: Among 24 Korean pain descriptors, ‘arida’ was the most common pain descriptor, followed by ‘ssusida’ and ‘jjireunda’. When the pain descriptors were classified according to neurophysiological mechanism, superficial somatic pain was the most common, followed by deep somatic pain. There was a significant difference in the frequency of the pain descriptor between axial spine and peripheral joint pain group (p=0.007). The pain descriptor ‘danggida’ was used significantly more in the patients with axial spine pain than peripheral joint pain (p=0.024). However, there was no significant difference in other factors.CONCLUSION: The patients with neuromusculoskeletal diseases expressed their pain using various Korean pain descriptors with stabbing nature and superficial somatic pain. Our results may be helpful to assess and develop a new Korean pain quality measure in the patients with neuromusculoskeletal diseases.
Arthralgia
;
Diagnosis
;
Humans
;
Methods
;
Musculoskeletal Pain
;
Neuralgia
;
Nociceptive Pain
;
Sensation
;
Shoulder Pain
;
Spine
;
Subject Headings
5.A Case of Solitary Cutaneous Myxoma
Ryung KWON ; Kyu Rak HONG ; Ji Yeoun SHIN ; Sun Bum KWON ; Kyu Uang WHANG ; Sang Hoon LEE ; Young Lip PARK
Korean Journal of Dermatology 2019;57(5):296-298
No abstract available.
Myxoma
6.Lichenoid Drug Eruption Developed in Melanoma Patient Treated with Nivolumab
Kyu Rak HONG ; Ryung KWON ; Jung Eun KIM ; Young Lip PARK ; Sang Hoon LEE
Korean Journal of Dermatology 2019;57(6):343-345
No abstract available.
Drug Eruptions
;
Humans
;
Melanoma
7.Thrombosed Fusiform Dilatation of Persistent Median Artery with Normal Median Nerve
Gi Young PARK ; Dong Rak KWON ; Dae Gil KWON ; Won Bin JUNG
Clinical Pain 2019;18(1):40-43
Carpal tunnel syndrome can be produced by abnormal mass effect due to trauma, ganglion cysts, various soft tissue tumors, musculotendinous variants, and aberrant vascular structures. Persistent median artery is one of the causes of the carpal tunnel syndrome. Thrombosed persistent median artery usually accompanies the anomaly of the median nerve and causes a sudden onset of severe pain and paresthesia. In contrast to previous literature, we report the rare case of gradual onset and mild symptom of a 53-year-old man with a thrombosed persistent median artery but without anomaly of the median nerve and abnormal finding of electrophysiologic study.
Arteries
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Carpal Tunnel Syndrome
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Dilatation
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Ganglion Cysts
;
Humans
;
Median Nerve
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Middle Aged
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Paresthesia
;
Ultrasonography
8.The Efficacy and Safety of Balneotherapy as an Adjuvant Treatment for Atopic Dermatitis at Samsan Spa, Korea: A Randomized Controlled Split-body Trial
Ji Yeoun SHIN ; Kyu Rak HONG ; Ryung KWON ; Ye Seul KIM ; Sul Hee LEE ; Young Lip PARK ; Sang Hoon LEE
Korean Journal of Dermatology 2019;57(10):594-599
BACKGROUND:
Atopic dermatitis is a chronic inflammatory disease associated with long-term use of topical and systemic medications. Several articles have described the use of balneotherapy as an adjuvant treatment for atopic dermatitis in many countries, including Korea.
OBJECTIVE:
The goal of this study was to investigate the therapeutic efficacy and safety of balneotherapy as an adjuvant treatment of atopic dermatitis.
METHODS:
Ten patients with atopic dermatitis were enrolled in this study and each patient served as their own control. Testing was conducted on the anterior cubital fossa of the arm. A priori binary randomization was completed to determine which arm would receive balneotherapy or tap water. Patients visited clinics 3 times per week for 2 weeks and had a forearm bath for 15 minutes. Assessment was performed at baseline, and after 1 and 2 weeks of treatment.
RESULTS:
At the last visit, the balneotherapy group showed improvements in their local eczema area, severity index score, and the degree transepidermal water loss. The physician's global assessment, patient's self-global assessment, and skin hydration was increased in both groups.
CONCLUSION
Our study suggests that balneotherapy is a safe adjuvant therapy that could be considered for the treatment of atopic dermatitis. However, more studies are required to demonstrate scientific basis for this treatment.
9.Synergic Effects of Cranial Electrotherapy Stimulation with Sleep Hygiene in Patients with Chronic Insomnia
Dong Rak KWON ; Jung A PARK ; Young Soo LEE ; Jae Hyuk KWAK ; Jin Kuk DO ; Ji Eun KIM
Journal of Sleep Medicine 2019;16(1):36-40
OBJECTIVES: To investigate the therapeutic effect of cranial electrotherapy stimulation (CES) with sleep hygiene in patients with chronic insomnia. METHODS: This study was designed as a prospective, double-blinded, and randomized controlled trial. Twenty-seven patients with chronic insomnia were recruited and randomly allocated to two groups; cranial microcurrent therapy (MC) group and sham group. All patients received sleep hygiene education. Pittsburgh Sleep Quality Index (PSQI) and Insomnia Severity Index (ISI) were measured at baseline (pre-treatment), and 2 weeks and 4 weeks of treatment. RESULTS: In MC group, the PSQI and ISI showed a tendency to decrease consistently until 4 weeks of treatment. In sham group, PSQI and ISI initially decreased during the first 2 weeks, but it increased after 2 weeks of treatment. CONCLUSIONS: This study showed that combination treatment of CES and sleep hygiene is more effective in treating chronic insomnia than sleep hygiene only as demonstrated by improvement and maintenance of sleep score for 1 month.
Education
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Electric Stimulation Therapy
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Humans
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Hygiene
;
Prospective Studies
;
Sleep Initiation and Maintenance Disorders
10.Augmentation of respiratory muscle activities in preterm infants with feeding desaturation.
Dong Rak KWON ; Gi Young PARK ; Ji Eun JEONG ; Woo Taek KIM ; Eun Joo LEE
Korean Journal of Pediatrics 2018;61(3):78-83
PURPOSE: Frequent desaturation due to immature incoordination of suck-swallow-breathing in preterm infants can influence multiple organs such as the heart, lungs, and brain, which can then affect growth and development. Most notably in preterm infants, feeding desaturation may even affect pulmonary function during gavage feeding. Because respiratory muscle activities may reflect the work required during respiration, we evaluated the differences in these activities between full-term and preterm infants with feeding desaturation, and investigated the correlations with clinical variables. METHODS: Nineteen preterm infants with feeding desaturation (group 1) and 19 age-matched full-term infants (group 2) were evaluated. Oromotor function was evaluated using video recording. The root-mean-squre (RMS) envelope of the electromyography signal was calculated to quantify the activities of muscles involved in respiration. The differences in RMS between both groups and the correlation with clinical variables including gestational age (GA), birth weight (BW), and Apgar scores (AS) at 1 and 5 minutes after birth were evaluated. RESULTS: The RMS values of the diaphragm (RMS-D) and rectus abdominis (RMS-R) were significantly greater in group 1 compared to group 2, and the 1- and 5-min AS were significantly lower in group 1 compared to group 2. RMS-D and RMS-R were inversely correlated with GA, BW, 1- and 5-min AS in all infants. CONCLUSION: This study showed that respiratory muscle activities were augmented during feeding in preterm infants compared to full-term infants. Additionally, respiratory muscle activities were inversely correlated with all clinical variables.
Ataxia
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Birth Weight
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Brain
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Diaphragm
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Electromyography
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Gestational Age
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Growth and Development
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Heart
;
Humans
;
Infant
;
Infant, Newborn
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Infant, Premature*
;
Lung
;
Muscles
;
Parturition
;
Rectus Abdominis
;
Respiration
;
Respiratory Muscles*
;
Video Recording

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