• 제목/요약/키워드: Skin function

검색결과 839건 처리시간 0.03초

Sphingolipids and Antimicrobial Peptides: Function and Roles in Atopic Dermatitis

  • Park, Kyungho;Lee, Sinhee;Lee, Yong-Moon
    • Biomolecules & Therapeutics
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    • 제21권4호
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    • pp.251-257
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    • 2013
  • Inflammatory skin diseases such as atopic dermatitis (AD) and rosacea were complicated by barrier abrogation and deficiency in innate immunity. The first defender of epidermal innate immune response is the antimicrobial peptides (AMPs) that exhibit a broad-spectrum antimicrobial activity against multiple pathogens, including Gram-positive and Gram-negative bacteria, viruses, and fungi. The deficiency of these AMPs in the skin of AD fails to protect our body against virulent pathogen infections. In contrast to AD where there is a suppression of AMPs, rosacea is characterized by overexpression of cathelicidin antimicrobial peptide (CAMP), the products of which result in chronic epidermal inflammation. In this regard, AMP generation that is controlled by a key ceramide metabolite S1P-dependent mechanism could be considered as alternate therapeutic approaches to treat these skin disorders, i.e., Increased S1P levels strongly stimulated the CAMP expression which elevated the antimicrobial activity against multiple pathogens resulting the improved AD patient skin.

이중 지붕 시스템을 활용한 건식 지붕 공법 개발 (Development of Dry Roof Construction Method Using Double Skin Roof System)

  • 김성진;김충식;류한국
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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    • pp.256-257
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    • 2013
  • Roof and exterior wall of general formal buildings are designed and constructed through design focused exterior wall system and drainage and waterproof roof system. However, there are no classification of exterior wall and roof in freeform buildings and they are integrated as a surface of freeform buildings. Therefore it is necessary to develop the dry roof construction method using double skin roof system satisfying the design and function of the envelope. In this study, we have an effort to develop construction method of double-skin roof system using metal panel and PV.

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MicroRNAs in Human Diseases: From Autoimmune Diseases to Skin, Psychiatric and Neurodegenerative Diseases

  • Ha, Tai-You
    • IMMUNE NETWORK
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    • 제11권5호
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    • pp.227-244
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    • 2011
  • MicroRNAs (miRNAs) are small noncoding RNA molecules that negatively regulate gene expression via degradation or translational repression of their target messenger RNAs (mRNAs). Recent studies have clearly demonstrated that miRNAs play critical roles in several biologic processes, including cell cycle, differentiation, cell development, cell growth, and apoptosis and that miRNAs are highly expressed in regulatory T (Treg) cells and a wide range of miRNAs are involved in the regulation of immunity and in the prevention of autoimmunity. It has been increasingly reported that miRNAs are associated with various human diseases like autoimmune disease, skin disease, neurological disease and psychiatric disease. Recently, the identification of miRNAs in skin has added a new dimension in the regulatory network and attracted significant interest in this novel layer of gene regulation. Although miRNA research in the field of dermatology is still relatively new, miRNAs have been the subject of much dermatological interest in skin morphogenesis and in regulating angiogenesis. In addition, miRNAs are moving rapidly center stage as key regulators of neuronal development and function in addition to important contributions to neurodegenerative disorder. Moreover, there is now compelling evidence that dysregulation of miRNA networks is implicated in the development and onset of human neruodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Huntington's disease, Tourette's syndrome, Down syndrome, depression and schizophrenia. In this review, I briefly summarize the current studies about the roles of miRNAs in various autoimmune diseases, skin diseases, psychoneurological disorders and mental stress.

Inhibitory Effects of Opuntia humifusa on 7, 12-Dimethyl-benz[a]anthracene and 12-O-tetradecanoylphorbol-13-acetate Induced Two-stage Skin Carcinogenesis

  • Lee, Jin-A;Jung, Bock-Gie;Lee, Bong-Joo
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권9호
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    • pp.4655-4660
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    • 2012
  • Opuntia humifusa, member of the Cactaceae family, was previously demonstrated to have radical scavenging, anti-inflammatory and anti-proliferative effects in in vitro models. It was suggested that O. humifusa could function in the prevention of carcinogenesis. To investigate the in vivo chemopreventive effect of O. humifusa, mice were fed a diet containing either 1% or 3% following 7, 12-dimethylbenz[a] anthracene (DMBA) and 12-O-tetradecanoylphorbol-13-acetate (TPA) induction of skin carcinogenesis. Significant decrease in the numbers of papilloma and epidermal hyperplasia were observed in mice fed with O. humifusa, compared to the control group. O. humifusa also upregulated high total antioxidant capacity and level of phase II detoxifying enzyme such as superoxide dismutase and glutathione S-transferase activity in the skin. Lipid peroxidation activity level was measured in skin cytosol and significantly inhibited in 3% OH fed group compared to the control group. These results suggest that O. humifusa exerts chemopreventive effects on chemical carcinogenesis in mouse skin and that prevention effects are associated with reduction of oxidative stress via the modulation of cutaneous lipid peroxidation, enhancing of total antioxidant capacity especially in phase II detoxifying enzyme system and partial apoptotic influence.

올레인산 및 프로필렌글리콜이 피부의 전기적 성질에 미치는 영향 (The Effect of Oleic Acid and Propylene Glycol on the Electrical Properties of Skin)

  • 오승열
    • Journal of Pharmaceutical Investigation
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    • 제24권4호
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    • pp.281-287
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    • 1994
  • The effects of oleic acid, propylene glycol and 5% (w/w) oleic acid in propylene glycol on the electrical properties of hairless mouse skin were studied and the results were compared. The complex electrical impedance was measured as a function of frequency, and resistance and capacitance were determined from the Nyquist plot. Immediately after the treatment with oleic acid, resistance was 145% of the pretreatment value. However it decreased with time and, after 20 hours, it was about 25% of its pretreatment value. Capacitance increased; immediately after the treatment, it was about 125% of pretreatment value and it seemed to increase slowly with time. When the skin was treated with propylene glycol, resistance decreased about 5O% and capacitance increased about 65%. Similar results were observed when the skin was treated with 5% (w/w) oleic acid in propylene glycol, except that the magnitude of resistance drop was much larger. Oleic acid acted synergistically with propylene glycol. Together with the flux data in the literature, the results obtained in this work indicate that electrical resistance is closely related to the permeability of drug molecules through the skin. The results are discussed in terms of the mechanism of action of these penetration enhancers. Overall, this work provided further mechanistic insight into the role of SC lipids in skin resistance and capacitance.

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현대 패션 리테일 샵에 나타난 표현경향과 표피(表皮)의 상관성에 관한 연구 - 패션 선두매장을 중심으로 - (A Study on Relationship between Expressive Tendency and Skin Contemporary Fashion Retail Shops - Focusing on the analysis of a Flagship store -)

  • 강소연
    • 디자인학연구
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    • 제19권4호
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    • pp.91-100
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    • 2006
  • 현대 상업공간의 패션 리테일 샵은 변화하는 패션경향에 따라 소비자의 라이프 스타일을 고려한 기능적, 감성적 공간으로 다양화되고 있다. 최근 패션 리테일 샵은 형태로부터의 표면의 변화와 표현특성이 상징화되고 있는데, 이는 공간이 이미지화되고 감성화 되고 있는 표피의 중요성을 재인식하게 되었다. 따라서 본 논문에서는 표피의 특성을 시대적 배경으로 구분하고, 2000년부터 2003년까지의 브랜드 아이덴티티 개념이 도입되고 표피의 표현이 두드러진 패션 리테일 샵의 패션 선두매장 (Flagship store) 4개 브랜드를 중심으로 형태적 측면과 공간적 측면으로 각각 범주화하여 패션 리테일 샵에 나타난 표현경향과 표피의 상관성을 분석 고찰하고자 한다.

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Change in Autonomic Nerve Responses after Low-frequency Transcutaneous Electrical Nerve Stimulation

  • Lee, Jeong-Woo;Park, Ah-Rong;Hwang, Tae-Yeon
    • The Journal of Korean Physical Therapy
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    • 제22권6호
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    • pp.71-76
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    • 2010
  • Purpose: The purpose of this study was to examine changes in autonomic nerve responses after low-frequency transcutaneous electrical nerve stimulation (TENS). Methods: Research subjects were 24 students who attend University. Subjects were divided into two groups: 1 = a low intensity group; 2 = a high intensity group. Electrodes were attached to the forearm of the dominant arm and electrical stimuli were administered for 15 minutes. Outcome measures were skin conduction velocity, skin temperature, blood flow, and pulse frequency, each of which was measured a total of 4 times. The data were analyzed using a repeated measures ANOVA. Results: In changes in conduction velocity, the main effect of time variation (in black) was statistically significant. The interaction between time and group main effects was not statistically significant; nor was the difference between the groups. Results showed that skin conduction velocity changed without any relation to group. Conclusions: Low frequency TENS selectively increases skin conduction velocity, which may be helpful for activating sudomotor function regardless of intensity.

Effects of Active Movement with Skin Mobilization on Range of Motion, Pain, RPE on Patients with Axillary Web Syndrome: A Case Study

  • Su-Hong Choi
    • Physical Therapy Rehabilitation Science
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    • 제11권4호
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    • pp.430-435
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    • 2022
  • Objective: This study was conducted to investigate the effect of active movement with skin mobilization on range of motion, pain, and rating of perceived exertion in patients diagnosed with axillary web syndrome after axillary lymph node dissection. Design: A Case report Methods: It was performed on 7 patients diagnosed with axillary web syndrome after lymph node dissection. The subjects experienced a decrease in the range of joint motion and pain in movement when raising their arms in their daily lives, and complained of discomfort. The active range of motion, numeric rating scale, and modified Borg scale of shoulder joint flexion were measured, and the differences after active movement with skin mobilization were compared. Results: All subjects increased by 24.9 degree on average in active range of motion after active movement with skin mobilization intervention. There was no pain in the maximum range of joint motion measured before intervention, and rating of perceived exertion was significantly reduced. Conclusions: Active movement with skin mobilization can be a very useful way to help improve and treat axillary web syndrome, and it is recommended for improving the function and quality of life of axillary web syndrome patients. and It is also believed that it can be used steadily at home through the education of patients and families.

Effect of facial cosmetic containing Prunus persica L. Batsch leaves extract on men's skin condition

  • Kwon, Hye-Jin;Jang, Hye-Rroon
    • 예술인문사회 융합 멀티미디어 논문지
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    • 제7권10호
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    • pp.703-711
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    • 2017
  • Today, men's appearance is an important part of the global fashion industry, including Korea, with such fashion concepts as the Metrosexual and Ubersexual. Domestic and overseas beauty and cosmetics related organizations are using this phenomenon for marketing and researching to improve the function of cosmetics. The purpose of this study was to investigate the effect of Prunus persica L. Batsch leaf extract on the skin condition after clinical application to male subjects with oily skin to determine the possibility of functional cosmetics utilizing this extract. The cleansing bars were prepared by the MP method and the cleansing packs were prepared using natural ingredients. After 8 weeks of application, moisture, oil, erythema, melanin, pH, elasticity and tactile sensation were measured using MPA5. The results showed that there was a statistically significant difference in T-zone moisture and T-zone oil after using the natural cleansing bar, but there was no significant difference between the two groups for other items. However, the statistically significant changes were found in the individual skin condition change items of the subjects in each group, and it was judged that the two kinds of formulations could be used at the same time to have a higher skin improvement effect. Thus, Prunus persica L. Batsch leaf extract demonstrates potential to be used as a functional cosmetics item.

Effect of anti-skin disorders of ginsenosides- A Systematic Review

  • Lele Cong;Jinli Ma;Yundong Zhang;Yifa Zhou;Xianling Cong;Miao Hao
    • Journal of Ginseng Research
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    • 제47권5호
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    • pp.605-614
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    • 2023
  • Ginsenosides are bioactive components of Panax ginseng with many functions such as anti-aging, anti-oxidation, anti-inflammatory, anti-fatigue, and anti-tumor. Ginsenosides are categorized into dammarane, oleanene, and ocotillol type tricyclic triterpenoids based on the aglycon structure. Based on the sugar moiety linked to C-3, C-20, and C-6, C-20, dammarane type was divided into protopanaxadiol (PPD) and protopanaxatriol (PPT). The effects of ginsenosides on skin disorders are noteworthy. They play antiaging roles by enhancing immune function, resisting melanin formation, inhibiting oxidation, and elevating the concentration of collagen and hyaluronic acid. Thus, ginsenosides have previously been widely used to resist skin diseases and aging. This review details the role of ginsenosides in the anti-skin aging process from mechanisms and experimental research.