• Title/Summary/Keyword: 각질

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Quasi-periodic waveform analysis for diplophonia (이중음성에 대한 음성파형분석)

  • 홍기환;김미정;정상술
    • Proceedings of the KOR-BRONCHOESO Conference
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    • 1993.05a
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    • pp.71-71
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    • 1993
  • Diplophonia is produced by the voice of two separate tones and produced through quasi-periodic variations in the vocal cord vibration. Diplophonia is generally regarded as a symptom of laryngeal pathology. The difference in the vibratory frequency between the vocal cords can be seen in a tension imbalance and a difference in the level of the vocal folds under the special condition such as incomplete glottal closure. So authors have experienced 19 cases of patient with diplophonia for the unilateral vocal cord paralysis, intracordal cysts and other mass lesions. And we analysed the diplophonic voice with peak variability and noise level for the quasi-periodic waveforms and spectrograms pre-and postoperatively.

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Biology of melanocytes and melanogenesis (멜라닌세포의 특성과 멜라닌 형성)

  • 박경찬
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.25 no.2
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    • pp.45-57
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    • 1999
  • Melanocytes, derived from neural crest, make melanin and protect skin from the hazardous ultraviolet light. Melanocytes with dendritic process has similar morphology with neurogenic cells and share growth factor receptors such as neurotrophin receptors. Melanogenesis can be regulated by ultraviolet light and inflammation of the skin. In addition, several factors such as hormone, cytokines, arachidonic acid can affect the proliferation and melanogenesis of melanocytes. For melanogenesis, melanocytes need expression of various genes including tyrosinase, TRP-1, TRP-2. In addition, melanin need to be transferred from melanocytes to surrounding keratinocytes. The biology of melanocytes is complex and mechanism of melanocytes proliferation and melanogenesis is still under the investigation.

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Protective Effect of Processed Saengmaek-san(SM) on Cell Damage in UV-exposed HaCaT Cell (생맥산(生脈散)이 자외선에 의한 피부각질세포의 상해에 미치는 영향)

  • Kim, Eun-Seop;Yoo, Dong-Youl
    • The Journal of Korean Obstetrics and Gynecology
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    • v.24 no.2
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    • pp.33-51
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    • 2011
  • Objectives: This study was performed to assess the protective effect of Saengmaek-san (SM) on UVB-induced HaCaT cell damage. Methods: The protective effects of Saengmaek-san(SM) were determined by UVB-induced HaCaT assay. We assessed protective effects of Saengmaek-san (SM) on LDH release and nitrite release from HaCaT. And COX-2, Bcl-2, Bax, $TNF{\alpha}$, c-jun, c-fos, NF-kB, iNOS, Bcl-xL gene expression were determined in HaCaT using real-time PCR method. Results: 1. SM inhibited LDH-release, nitrite production in UVB-exposed HaCaT. 2. SM suppressed the gene expression of COX-2, $TNF{\alpha}$ in UVB-exposed HaCaT. 3. SM increased the gene expression of Bcl-2, Bax, Bcl-xL family protein in UVB-exposed HaCaT. 4. SM suppressed the gene expression of c-jun, c-fos, NF-kB in UVB-exposed HaCaT. Conclusions: The study showed SM inhibited the cell damage in UVB-exposed HaCaT.

The Effect of Saingheylyunbooemgami Extract to Revover Function of Stratum Corneum on Mice Model after Atopic Dermatitis Elicitation. (生血潤膚飮加味方이 아토피 피부염을 유발한 동물모델의 각질층 기능회복에 미치는 영향)

  • Lee, Hyun-woo;Ku, Young-hui;Choi, In-hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.16 no.1
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    • pp.112-129
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    • 2003
  • Introduction and Objectives : Applying the saingheylyunbooemgami(SY) extract on to the atopic dermatitis(AD) is to study change of external dermal formation, change of leukocytes in vasculature, change of lipid formation in stratum corneum and distribution of ceramide and this study is done through forcing injury to rat's back skin which are lipid protect formation in stratum corneum. Materials and Methods : The AD which caused intentionally using the external application on the rat's back skin was used the SY. The change of leukocytes in vasculature has been identified through optima 5.2 and student t-test and the results were made into dermal foramtion graph. Results : After dispensing SY extract into the AD, the dermal injury was decreased, Especially, recover of lipid protection formation which include lipid and ceramide in stratum corneum is suppressing acute inflammation that some factors are PKC, TNF-${\alpha}$, lL-12B which controled the secretion of relating inflammatory cytokine, also went onto decrease of angiogenesis, and the decrese of degranulated mast cell. In addition, the decrease of epithelial injury also caused the growth of cell to decrease in stratum basale and cytoclasis. In the vasculature. the leukocytes were also decreased and it could relate to decrease AD. Conclusions : Thus. SY has effect on AD suppressing the dermal injury through recovering of lipid protection formation in stratum corneum.

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A Case of Subcorneal Pustular Dermatitis treated with Oriental Medicine (각질하 농포성 피부병 한방 치험 1례)

  • Kim, Min-Hee;Yun, Young-Hee;Yu, Seung-Min;Choi, In-Hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.24 no.2
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    • pp.87-95
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    • 2011
  • Objective : Subcorneal pustular dermatosis is a rare, chronic neutrophilic dermatoses that was first described in 1956. The eruption is characterized by flaccid pustules grouped in a circinate pattern on normal or erythematous skin. We treated a case of subcorneal pustular dermatosis in one patient; there have been no former reports of this disease treated by oriental medicine. We present this case because we considered it to be useful as a possible Oriental medicine treatment for subcorneal pustular dermatosis, and something that canbe used for further study of neutrophilic dermatoses. Method : We used herbal medication, acupuncture, herbal wet dressing, herbal ointment, cupping therapy and phototherapy during treatment. We assessed symptoms during treatment and also carried out blood tests through out. Result : We observed and treated a case of subcorneal pustular dermatosis patient and after treatment the patient's objective and subjective symptoms showed noticeable improvement. Conclusion : We suggest that subcorneal pustualr dermatosis can be treated by Oriental medicine therapy effectively. We expect these study results will help provide useful evidence of Oriental medicine as an effective treatment for subcorneal pustualr dermatosis.

Comparison of Skin Condition Before and After Use of Scrub Cosmetics and Microscopic Characteristics of Microbeads (스크럽 화장품의 사용 전과 후의 피부상태 비교와 이에 첨가된 마이크로비드의 현미경적 특성)

  • Kim, Hoon;Chang, Byung-Soo
    • Journal of Convergence for Information Technology
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    • v.9 no.6
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    • pp.211-217
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    • 2019
  • In this study, the change of skin condition was analyzed by skin analysis equipment using scrub cosmetics, and the morphological characteristics of microbead were observed by dermascope and scanning electron microscope. In the dermascope observation, during the process of cleansing, the microbeads attached to the skin existed in close contact with each other or dispersed. The skin after scrubbing was clean and smooth and the fine wrinkles between epidermal keratinocytes were reduced. In the scanning electron microscopic observation, the microbead surface did not have severe bending or rough surface. The skin moisture and oil content were higher than the scrub skin before the scrub, and there was no significant difference in the pH.

In vitro Anti-allergic Effects of Bangpungtongseong-san in Human Keratinocytes and Primary Mouse Splenocytes (간 각질 세포 및 마우스 비장 세포를 이용한 방풍통성산의 항알러지 효능 연구)

  • Jeong, Soo-Jin;Lee, Mee-Young;Seo, Chang-Seob;Shin, Hyeun-Kyoo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.29 no.2
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    • pp.168-173
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    • 2015
  • Bangpungtongseong-san(BPTSS, Fangfengtongsheng-san in Chineses) is a traditional herbal formula comprising 18 medicinal herbs. In the present study, we performed the simultaneous analysis for four compounds of BPTSS and examined anti-allergic effects in human keratinocytes and mouse splenocytes. The column for separation of four compounds was used Luna C18 column and maintained at 40℃. The mobile phase for gradient elution consisted of two solvent systems. The analysis was carried out at a flow rate of 1.0 mL/min with PDA detection at 254 and 280 nm. To evaluate production and expression of Th2 chemokines, ELISA and RT-PCR were conducted in tumor necrosis factor (TNF)-α and interferon (IFN)-γ-stimulated HaCaT cells with or without BPTSS or silymarin, a positive control for skin inflammation. To measure Th2 cytokines, primary mouse splenocytes were treated with BPTSS and performed ELISA for interleukin (IL)-4, 5, 13. Calibration curves were acquired with r2>0.9999. The contents of geniposide, liquiritin, baicalin, and glycyrrhizin in BPTSS were 5.06 ㎎/g, 7.33 ㎎/g, 27.56 ㎎/g, and 7.81 ㎎/g, respectively. BPTSS reduced TARC and RANTES production and mRNA expression in TNF-α and IFN-γ-treated HaCaT cells. BPTSS inhibited IL-4, 5, and 13 production in mouse splenocytes. Our data will be a helpful information to upgrade quality control and anti-allergic effects of BPTSS.

Influence of Ceramide III on the Structure of a Phospholipid Lamellar Liquid Crystalline Phase Hydrated in Glycerin : Structural and Thermal Behaviors (Glycerin에 수화된 인지질 라멜라 액정상의 구조에 미치는 Ceramide 3의 영향 : 구조적 및 열적거동)

  • Jeong, Kwan-Young;Lee, Dong-Kyu
    • Applied Chemistry for Engineering
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    • v.21 no.6
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    • pp.603-609
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    • 2010
  • This paper aims to investigate the lyotropic behaviors of DSPC and CER3 when they are swollen by GLY as a solvent. The analyses were carried out on DSC, XRDs, PM, and Cryo-SEM. CER3 which has its high crystallinity and structural similarity with DSPC was well arranged up to 7.0 wt% in comparison to 20 wt% DSPC without any separation, but it was separated from the liquid crystalline (LC) phase to form another crystalline phase with the expression of its characteristic peak in XRDs and eutectic thermal behavior in DSC. Introducing CER3, two types of patterns were shown in XRD spectra; one is SPP expressed in a normal LC and another is LPP expressed in human skin SC. Therefore, it was confirmed that the incorporation of CER3 makes LC structure more similar to human skin. In Cryo-SEM study, it was shown that CER3 makes LC structure thicker and denser.

The effects of ATO-ALL on skin regeneration in human epidermal keratinocytes, HaCaT cells (ATO-ALL이 인간유래 피부 각질형성세포인 HaCaT 세포에서 피부재생에 미치는 효과)

  • Shin, Younmin;Lee, Won-Kil;Kim, Seung Hyung;Choi, Jeong June
    • Journal of Haehwa Medicine
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    • v.28 no.2
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    • pp.41-47
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    • 2019
  • Objectives : Atopic dermatitis is an irritable skin disease accompanying rash and itching leading to impaired skin barrier. ATO-ALL is an ethanol extract of natural products comprising 12 herbs and effective on atopic dermatitis. In this study, we aimed to propose that the effect of ATO-ALL on skin regeneration in human keratinocyte cell line, HaCaT cells. Methods : To evaluate the skin regenerating effects of ATO-ALL, scratch wound healing assay, bromodeoxyuridine (BrdU) assay, and propidum iodide (PI) assay were performed using cultured HaCaT cell line. Result : Scratch wound healing assay showed that ATO-ALL was able to enhance the gap filling activity more than 2-fold at 7 ppm concentration compared with control group. BrdU assay demonstrated that ATO-ALL treatment increased the de novo cell proliferation in a dose-dependent manner. Finally, PI assay indicated that the cell cycle of HaCaT cells was modulated by ATO-ALL treatment. Conclusions : These results suggested that ATO-ALL may have skin regenerating effects by increasing cell proliferation via cell cycle regulation. Taken together, ATO-ALL is supposed to have a potential on regeneration of damaged skin or functional disease including atopic dermatitis.

Ceramium boydenii, a Red Alga, Inhibits MDC/CCL22 Production Via Suppression of STAT1 Activation in HaCaT Keratinocyte (HaCaT 각질형성세포에서 홍조류인 단박(Ceramium boydenii)의 STAT1 활성 억제를 통한 MDC/CCL22 생성 억제 효과)

  • Kang, Na-Jin;Kang, Gyeung-Jin;Han, Sang-Chul;Hyun, Eun-A;Koo, Dong-Hwan;Koh, Young-Sang;Ko, Mi-Hee;Hyun, Jin Won;Kang, Hee-Kyoung;Yoo, Eun-Sook
    • Korean Journal of Pharmacognosy
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    • v.44 no.2
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    • pp.154-160
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    • 2013
  • Ceramium boydenii belongs to euphorbia humitusa of red algae, and is distributed along the coast of Jeju island. This study was conducted to examine the anti-inflammatory effect and action mechanism of C. boydenii in the human keratinocyte cell line HaCaT. The 80% EtOH extract of C. boydenii inhibits the production of MDC (macrophage derived chemokine), an inflammatory chemokine, induced by IFN-${\gamma}$ and TNF-${\alpha}$ in a concentration dependent manner. It also suppressed the phosphorylation and nuclear translocation of STAT1, a key transcription factor in IFN-${\gamma}$ and TNF-${\alpha}$ signaling pathway, at the effective concentrations. These results suggest that C. boydenii demonstrates the anti-inflammatory activity via the suppression of STAT1 activation and has the significant value as an anti-inflammatory source.