• 제목/요약/키워드: Skin anatomy

검색결과 257건 처리시간 0.031초

천정기보단(天精氣保丹)의 자외선에 의한 세포 손상 억제 효과 (Protective Effect of Cheonjeongkibo-Dan UV-Induced Cellular Damage in Human Dermal Fibroblast)

  • 이강태;박시준;이정로;이광식;김대성;문연자;이건국;우원홍
    • 동의생리병리학회지
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    • 제24권6호
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    • pp.950-955
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    • 2010
  • In this study, we prepared CheonJeongKiBo-Dan(7 oriental medicinal plants, 7OMP: Astragalus Membranaceus root, Panax Ginseng root, Glycyrrhiza Glabra (licorice) root, Schizandra Chinensis fruit, Polygonatum Odoratum, Rehmannia Glutinosa root, Paeonia Albiflora root) by extracting them in one reactor and studied its efficacies on skin. UV irradiation has been suggested as a major cause of photoaging in skin. In order to investigate protective effects against UV-B induced cellular damage, 7OMP was extracted with 70% ethanol and dissolved in DMSO. The protective effect was detected by MTT assay, reactive oxygen species (ROS) generation, phosphorylation of ATR and p53 in human dermal fibroblast cell system after UV-B irradiation. 7OMP reduced UV-B-induced cellular damage in HDFs cells, and inhibited ROS generation. UV-B-induced toxicity accompanying ROS production and the resultant DNA damage are responsible for activation of ATR, p53 and Bad. In this study, 7OMP hampered phosphorylations of ATR and p53 in human dermal fibroblasts. Therefore, 7OMP may be protective against UV-induced skin photoaging.

개의 아토피성 피부염의 피부증상 호발부위의 비만세포분포조사 (Mast Cell Distribution at Predilection Sites of Atopic Dermatitis in Normal Canine Skin)

  • 이성준;정아영;오태호
    • 한국임상수의학회지
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    • 제22권3호
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    • pp.181-185
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    • 2005
  • 개의 아토피성 피부염의 피부증상이 호발하는 8부위에서 비만세포의 분포를 조사 비교하였다. 피부증상을 보이지 않는 10두의 개의 8부위의 피부조직을 채취하여 비만세포에서 특이적인 acidfied toluidine blue 염색을 하여 현미 경하에서 계수비교하였다. 비만세포수는 표재진피에서 각각의 부위간에 유의한 변화가 관찰되었으며 (p<0.0001) 표재진피가 심재진피에 비해 유의하게 높았다 (p<0.05). 호발 부위중 비만세포가 가장 높은 부위는 내측이개와 지간으로 각각 $74.88{\pm}17.93\;per\;mm^2$, $28.33{\pm}6.24\;per\;mm^2$이었다. 이 부위는 다른 부위에 비해 비만세포가 $280{\%}$ 높게 분포하였다. 따라서 개의 아토피성 피부염의 호발증상인 귀와 발의 소양증의 발생은 비만세포의 수가 다른 부위에 비해 높은 것이 하나의 요인으로 사료된다. 그러나 비만세포의 수가 낮게 나타난 다른 호발부위에 대해서는 다른 요인이 관계하는 것으로 사료되며 이에 관한 연구가 필요하다.

근위부 경골 노출을 동반한 벗겨진 손상의 장딴지 근육 피판을 이용한 조기 피복 치험례 (Early Resurfacing Using Gastrocnemius Muscle Flap Transposition for Degloving Injury with Exposure of Proximal Tibia)

  • 정희선;이혜경
    • Journal of Trauma and Injury
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    • 제21권2호
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    • pp.140-143
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    • 2008
  • Degloving injuries result from the tangential force against the skin surface, with resultant separation of the skin and the subcutaneous tissue from the rigid underlying muscle and fascia. These injuries are associated with extensive soft tissue loss and occasionally with exposure of bone, and they require reconstructive modality for resurfacing and successful rehabilitation that considers the vascular anatomy and the timing of the operation. A 19-year-old male patient was transferred to our facility with degloving injury extending from the lower third of the right thigh to the malleolar area. The tibial bone was exposed to a size of $2{\times}3.5cm^2$ on the upper third of the lower leg at the posttraumatic third day. The exposed soft tissue was healthy, and the patient did not have any other associated disease. At the posttraumatic sixth day, one-stage resurfacing was performed with a medial gastrocnemius muscle flap transposition for the denuded bone and a split-thickness skin graft for the entire raw surface. The transposed gastrocnemius muscle attained its anatomical shape quickly, and the operating time was relatively short. No transfusion was needed. This early reconstruction prevented the accumulation of chronic granulation tissue, which leads to contracture of the wound and joint. The early correction of the gastrocnemius muscle flap transposition made early rehabilitation possible, and the patient recovered a nearly full range of motion at the injured knee joint. The leg contour was almost symmetric at one month postoperatively.

여성의 연령에 따른 비만도가 피부저항변이도에 미치는 영향 (A Study on the Impacts of Women with Age-related Obesity on Skin Resistance Variability(SRV))

  • 김현주;정혁상;손영주
    • 대한한방부인과학회지
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    • 제25권1호
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    • pp.79-92
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    • 2012
  • Purpose: Obesity affects dysfunction of Hypothalamus-Pituitary-Ovary(H-P-O) axis. Dysfunction of H-P-O axis could be related to Skin Resistance Variability (SRV). This study investigated the impacts of obesity which related to female age on SRV. Methods: We randomly selected 400 women who had taken CP-6000A test and InBody test on the same day at Oriental Hospital of Sangji University from Jan. 2008 to Jun. 2011. In this study, the Body Mass Index(BMI) range of normal group is 18.5~24.9, obesity group is over 25, the age range of childbearing age group is 24~34 years, post-menopause group is 50~65 years. 139 women that met the criteria of this study were assorted by their BMI and age. After detection of SRV, SPSS 19.0 has conjugated for data analysis and the independent samples t-test and paired samples t-test were used to verify the results. Results: At 1st and 2nd trial, the height of 3 area of childbearing age obesity group was significantly higher than that of childbearing age normal group. At 1st and 2nd trial, the height of 1, 2 area of childbearing age obesity group was higher than that of childbearing age normal group, but there were no significant difference. At 1st and 2nd trial, the height of 1, 2, 3 area of post-menopause obesity group was mostly higher than that of post-menopause normal group, but there were no significant difference. Conclusions: This study showed the SRV of obesity group was higher than that of normal group in most of 1, 2, 3 area. Further study will be needed.

황금 (Scutellaria baicalensis) 추출물의 ECS조절을 통한 아토피피부염 염증 완화 효과 (ECS Modulating Effect of Scutellaria baicalensis Extract on inflammation relief in atopic dermatitis-induced mice)

  • 안상현;김기봉
    • 대한한방소아과학회지
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    • 제35권3호
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    • pp.118-127
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    • 2021
  • Objective The purpose of this study was to confirm the effect of Scutellaria baicalensis extract on skin damage recovery and inflammation relief in atopic dermatitis-induced mice through Endocannabinoid system (ECS) control. Methods 6-week-old Balb/C mice were divided into control group (Ctrl), atopic dermatitis induced group (ADE), palmitoylethanolamide (PEA) administered group after atopic dermatitis induced (PEAT), and Scutellaria baicalensis extract administered group after atopic dermatitis induced (SBT). Seven animals were assigned for each group. After drug administration for 3 weeks after inducing atopic dermatitis, Claudin and 8-OHdG were observed to confirm the recovery of the skin damage in each group. To confirm ECS regulation, CB1, CB2, and GPR55 were observed. To confirm the anti-inflammatory effect, Fc ε receptor, and MMP-9 was observed. Results Claudin positive reaction was significantly increased in SBT compared to ADE and PEAT. 8-OHdG positive reaction was significantly decreased in SBT compared to ADE and PEAT. CB1, CB2, and GPR55 positive responses were significantly increased in SBT compared to ADE and PEAT. Fc ε receptor and MMP-9 positivity were significantly decreased in SBT compared to ADE and PEAT. Conclusion It was confirmed that the Scutellaria baicalensis extract can reduce the inflammation of atopic dermatitis by restoring the structural damage of the skin lipid barrier through ECS activity.

Usefulness of the orbicularis oculi myocutaneous flap in periorbital reconstruction

  • Kim, Geon Woo;Bae, Yong Chan;Kim, Joo Hyoung;Nam, Su Bong;Kim, Hoon Soo
    • 대한두개안면성형외과학회지
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    • 제19권4호
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    • pp.254-259
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    • 2018
  • Background: The esthetic and functional outcomes of periorbital defect reconstruction are very important because of the complex anatomy and specialized functions of this region. The orbicularis oculi myocutaneous (OOMC) flap is useful for the reconstruction of periorbital defects. But, according to the location and depth of the defects, the reconstruction using OMC flaps with various techniques is rare. The authors have used various kinds of OOMC flaps in various situations and we present an analysis of our experiences. Methods: From November 2001 to July 2017, we used 36 OOMC flaps to reconstruct 30 periorbital defects in 25 patients. We analyzed the cause of the defect, its location, the type of concomitant surgery, the method of flap movement, and complications. Results: Of the 30 defects, basal cell carcinoma was the most common cause, accounting for 20 cases. When the used OOMC flap was classified according to the location of the defects, the switch flap was used in nine cases among 15 defects of lower eyelid, and the V-Y advancement flap was mainly used for other parts. As surgical methods according to the depth of defect were classified, all cases involving the tarsal plate were reconstructed with a composite graft. In case of skin and muscles, they were reconstructed only with OOMC flap or with full-thickness skin graft. Conclusion: The OOMC flap provides good skin quality that is very similar to that of the defect tissue. Depending on the location and depth of the defect, the OOMC flap may be used properly in a variety of ways to achieve good results.

Efficacy of Hataedock Treatments for Maintenance and Formation of Lipid Barrier in Obese NC/Nga Mice with Dermatophagoides Farinae-Induced Atopic Dermatitis

  • Kim, Hee-Yeon;Ahn, Sang-Hyun;Yang, In-Jun;Cheon, Jin-Hong;Kim, Kibong
    • 대한한의학회지
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    • 제39권4호
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    • pp.74-85
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    • 2018
  • Objectives: HTD treatment is a traditional preventive therapy for neonatal inflammatory diseases such as AD. The aim of this study was to investigate the efficacy of HTD treatments for the maintenance and formation of lipid barrier in Dermatophagoides farina-induced obese NC/Nga mice. Methods: 20 mg/kg of CRGR extracts as HTD treatments were orally administered to NC/Nga mice. To induce obesity, high fat diet was served. Dermatophagoides farina extracts was applied on the 4th-6th and 8th-10th weeks to induce AD-like skin lesions in NC/Nga mice. Changes of skin conditions in mice were observed by histochemistry and immunohistochemistry. Results: The results showed that HTD treatments effectively maintained and formed the lipid barrier. In the experimental groups, restorations of Lass2 expression and distributions of filaggrin, involucrin, loricrin, ASM, and LXR means that HTD treatments maintained and generated the lipid barrier. In the dermal papillae, HTD treatments reduced PKC production accompanied by epidermis damage. Furthermore, levels of IL-4, and STAT6 was low. HTD treatment may be effective for preventing inflammation induced by Th2-skewed condition by suppressing the main pathway of Th2 differentiation. Conclusions: HTD treatment alleviated the inflammatory damage in the skin tissues of the NC/Nga mice by maintaining the lipid barrier and suppressing Th2 differentiation.

슬관절 주변의 광범위한 연부조직 결손 시에 시행한 광배근-부견갑 피판을 동시에 사용한 유리 피판술의 효과 (Reconstruction of the Large Soft Tissue Defects around Knee Joint with Para-Scapular and Latissimus Dorsi Myocutaneous Free Flap based on Subscapular Vessels)

  • 정덕환;이재훈
    • Archives of Reconstructive Microsurgery
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    • 제11권1호
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    • pp.11-18
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    • 2002
  • Large soft tissue defects around the knee joint are known to significantly diminish joint function. Severe soft tissue defects on the anterior aspect of the knee joint especially bring on significant joint motion limitation. Although simple split skin grafts can cover the skin defect, the progressing scar contracture of the grafted skin causes joint stiffness. One of the best solutions of large soft tissue defects around the knee joint is covering the defect with a good quality skin flap. Separated flaps with one vascular pedicle are good candidates for covering anterior and posterior aspects of the joint for example. Authors performed 12 cases of combined scapular and latissimus dorsi free flaps from 1984 to 2000. Among them, we experienced 5 cases of knee joint defect covering using the double free flap for coverage of the soft tissue defect with preservation of the knee joint function and satisfactory results. The system of flaps based on the subscapular artery and vein provides a variety of composite free flaps. The possible flaps that can be harvested based on this single vascular pedicle include the scapular and parascapular skin flap, the serratus anterior and latissimus dorsi muscular flap, the lateral scapular bone flap, the latissimus dorsi-rib flap, and the serratus anterior-rib flap. This combined flap is available for multiple tissue defects or complex defects because it can be incorporated with skin, muscle and bone flaps. A main advantage is the independent vascular pedicles of each component, which allow freedom in orientation of each components. Consequently it can be freely applied to any form of three dimensional defects on the upper and lower extremities. The combination of scapular cutaneous flap and latissimus dorsi musculocutaneous flap can be resurfaced for massive cutaneous defects on the extremities. We report the use of the combined scapular and latissimus dorsi free flap in five patients to reconstruct massive defects on the extremities with resultant improved joint function. There was no flap failure and minimal complications and disadvantages. The anatomy of this flap is reviewed and the indication and advantages are discussed. All of the five flaps survived and there was no scar contracture affecting the joint motion.

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쥐에서 자외선 B가 유도한 염증 반응에 대한 식물 추출물 함유 크림의 영향 (Effects of Plant Extract containing Creams on UVB Radiation-induced Inflammatory Responses in Mice)

  • 안상미;이승진;박권무;고재숙;부용출
    • 대한화장품학회지
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    • 제36권4호
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    • pp.271-280
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    • 2010
  • 자외선(UV)은 인체 피부 손상의 주된 요인이고 UV에 대한 피부의 초기 반응들은 홍반과 부종을 포함한다. 화장품에 사용할 효과적인 자외선 방어제를 발굴하기 위하여 세포수준의 효능평가법으로 다양한 식물 추출물들을 검색하였다. 시험된 총 38종의 식물 추출물들 중 제주조릿대(Sasa quelpaertensis), 접시꽃(Althaea rosea), 관중(Dryopteris crassirhizoma)에서 유래한 3종의 식물 추출물이 배양된 인체 표피 멜라닌세포에서 멜라닌 생성뿐만 아니라 UVB의 세포독성을 경감시켰다. 이 식물 추출물들의 항염증 작용은 동물 실험에서도 평가하였다. 대조 크림 혹은 식물 추출물을 1 % 함유한 시험 크림을 C57BL/6 쥐의 귀에 혹은 SKH?1 무모쥐의 등에 UVB 조사 전과 후에 도포하였다. UVB 노출에 의한 영향으로서 부종 생성은 귀의 두께 변화를, 홍반 생성은 등 피부의 붉기의 변화를 측정하여 추정하였다. 3종류의 시험 크림 모두 두 실험 모두에서 항염증효과를 보였다. 제주조릿대, 접시꽃, 또는 관중 추출물을 함유한 크림은 자외선 조사 4일째 부종 반응을 각각 53.8 %, 56.4 %, 31.1 % 경감시켰다. 또한 이 크림들은 자외선 조사 2일째 홍반 생성을 각각 45.7 %, 34.1 %, 20.5 % 억제시켰다. 본 연구는 화장품에 함유된 특정 식물 추출물들이 자외선 과다노출로 야기되는 피부 염증을 완화시켜 줄 수 있음을 시사하였다.

손가락동맥과 동반정맥 구조에 대한 해부학적 연구 (Analysis of the Anatomy of the Venae Comitantes Related to the Digital Artery)

  • 최환준;심병관;김철한;탁민성;김준혁;정성균;이영만
    • Archives of Plastic Surgery
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    • 제37권2호
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    • pp.122-128
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    • 2010
  • Purpose: Many descriptions of the digital arterial anatomy including skin territory of the finger have been published. Relatively few studies on venous architecture of the finger have been performed in this area, in part, attributable to the technical difficulties encountered in dissecting small vessels. The purpose of this study is to present the precise microsurgical anatomy of the vein related to the digital artery and venae comitantes of the components. Methods: Arterial and venous anatomy of their relation to the fingers were examined in 38 specimens of two fresh cadavers and 36 clinical cases. All specimens were evaluated grossly, surgical microscopically, or / and light microscopically to observe the three & two-dimensional structure of the artery and joining vein, evidence of the venae comitantes, and venous valve. Results: No longitudinal venae comitantes along the digital artery were found in any specimens. The size of the venae comitantes of each digital artery was much smaller than other vein, but always existed any level of digital artery. One or two venae comitantes in the digital artery ran spiral, oblique, helical, fibrillar, or irregular branched shape. The authors also found the vein of the finger, that had bicuspid valves, but not in venae comitantes. Conclusion: Recently, venous outflow problem rather than arterial circulation is the most common cause tissue failure after microvascular surgery in the hand. Sometimes, if it is not recognized early, there is an increased risk of tissue damage and loss. The authors concluded that this study presents a useful knowledge for the characterization of the venous structure and evidence for venae comitantes like a venule in the digital artery at varying levels of the finger.