• Title/Summary/Keyword: Desquamation

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DEVELOPMENT OF LIP TREATMENT ON THE BASIS OF DESQUAMATION MECHANISM

  • Hikima, Rie;Igarashi, Shigeru;Ikeda, Naoko;Matsumoto, Masayuki;Hanyama, Atsushi;Egawa, Yuichiro;Horikoshi, Toshio;Hayashi, Shoji
    • Proceedings of the SCSK Conference
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    • 2003.09a
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    • pp.98-141
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    • 2003
  • Lip chapping is a serious cosmetics problem, though remedies other than moisturizing have not been proposed. We investigated changes in the surface configurations of lip corneocytes and increased CD activity and improved chapping severity. Our results suggest that lip chapping can be activities of desquamation-regulating proteinases associated with lip chapping. Using scanning electron microscopy, villus-like projections were observed on the inner surfaces of most corneocytes from normal lips, whereas those with flatter surface were predominant in chapped lips. Further, cell surface area increased with the severity of lip chapping. Cathepsin D (CD)-like and chymotrypsin-like proteinase, which are also present in skin as desquamation-regulating proteinases, were detected in lip corneocytes, though only CD activity was found to decrease in severely chapped lips. Hydration was also lower in areas of lip chapping. Sequential topical application of apricot extract essence characterized as similar to senile xerosis rather than dry skin such as winter xerosis, as it shows a delayed transition of corneocytes through the stratum corneum, and the reduced CD activity may be one of the mechanisms that is further decreased by low hydration. We propose that an enhancement of both CD activity and lip moisture may be effective to improve lip chapping.

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Study on the restored Sungnyemun Gate Dancheong (숭례문 복원 단청에 관한 연구)

  • Kim, Soon Kwan;Han, Min Su;Jeong, Seon Hye;Kim, Mi Jeong
    • Journal of Conservation Science
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    • v.30 no.4
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    • pp.447-456
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    • 2014
  • This study is mainly about materials that are used in Sungnyemun gate's dancheong to find causes of dancheong's damage such as desquamation and peeling off. 12 kinds of pigments' components which are used in dancheoong are analyzed. Except for Hobun and Seokganju, the pigments are artificial. Samples are made with different conditions of adhesives and the rate of binder. To estimate promotion weathering test, adhesives are applied in a different order. Desquamation and peeling off presented especially when different adhesives are used on dancheong and also, generally the layer thickened.

Skin Care Effect of Hyaluronic acid as Beauty Foods

  • Yu, Heui-Jong
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 2007.11a
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    • pp.140-152
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    • 2007
  • Hyaluronic acid(HA) is a naturally occurring mucopolysaccharide composed of the repeating disaccharide unit of D-glucuronic acid and N-acetyl-D-glucosamine. HA exists as a high molecular weight polymer in the extracellular matrix of many tissues in the body. HA has been widely used not only for osteoarthritis and ophthalmology but also for cosmetics for skin care. Recently HA has drawin much attention for use in health foods. Bioland Corporation started production of HA t1y biotechnological process in 1990 for cosmetical use. At present Bioland produces HA for cosmetic and food use. We have done many researches to evaluate the helpful effect for skin and safety of HA as food. In order to evaluate the effect of HA on the skin after its oral intake, we measured its bioavailability, skin-care effects on anti-wrinkle, moisturization elasticity and desquamation by clinical trial. The results showed that HA is very safe and could bs helpful to improve anti-wrinkling, moisturization, elasticity, and desquamation on the skin.

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Neonatal skin diseases (신생아 피부질환)

  • Kim, Kyu Han
    • Clinical and Experimental Pediatrics
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    • v.49 no.1
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    • pp.1-5
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    • 2006
  • Several physiological skin changes such as vernix caseosa, cutis marmorata, physiologic desquamation, and sebaceous hyperplasia have been described in the neonatal period. There are also clinical characteristics of skin peculiar to neonate and infancy. Skin disorders observed during neonatal and infancy period can be divided into transient skin lesions, birth marks, and other diseases. Transient skin lesions include milia, sebaceous gland hyperplasia, erythema neonatorum, transient neonatal pustular melanosis, and acne neonatorum. Nevocellular nevus, mongolian spot, vascular malformation, hemangioma, epidermal nevus, and sebaceous nevus belong to birth marks. There are several common skin diseases such as miliaria, diaper dermatitis, atopic dermatitis, seborrheic dermatitis, and cutaneous candidiasis.

Pathological Observations on Balantidiasis in Pigs (돼지 Balantidiasis의 병리학적 관찰)

  • 문운경;이주홍;김순복
    • Korean Journal of Veterinary Service
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    • v.13 no.1
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    • pp.44-48
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    • 1990
  • This study was based on 3 necropsies of patients affected with Balantidium coli dysentery from two pig farms. Grossly, the lesions involved the large intestine from cecum to rectum. Many variable-sized ulcers were diffusely scattered on the mucosa of the cecum and the colon which were covered with a necrotic, grayish white, slate black, or black membrane. The mucosa affected reddened and swollen. Microscopically, numerous balantidia penetrated In the mucosa of the colon and there they induced necrosis and desquamation of the epithelial cells, where inflammatory cells such as macrophages, neutrophils, eosinophils, lymphocytes and plasma cells were infiltrated.

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Corrosion Resistance Characteristics of Cold Rolled Steel by Cr-free Green Organic/Inorganic Hybrid Coating Solution (크롬 프리 친환경 유/무기 하이브리드 코팅액에 의한 냉연강판의 내식특성)

  • Nam, Ki Woo;Kim, Jung Ryang;Choi, Chang Min
    • Journal of Ocean Engineering and Technology
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    • v.27 no.2
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    • pp.33-38
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    • 2013
  • In the past, a very popular method for reducing the corrosion on zinc involved the use of chemical conversion layer coatings based on $Cr^{+6}$. However, there is an important problem with using chromium salts as a result of restrictive environmental protection legislation. This study investigated the optimum condition for galvanized steel using an organic/inorganic solution with a Ti composition. In the case of a fixed heat treatment time, the corrosion resistance values of LR-0727(1) and LR-0727(2) were improved as the heat treatment temperature increased, and the optimum minimum temperature decreased with the heat treatment time. At the optimum heat treatment condition of two coating solutions, the heat treatment time of the LR-0727(1) solution was shorter than LR-0727(2) for the same heat treatment temperature. LR-0727(1) coated specimens did not show desquamation, and all of the specimens showed a good adhesive property. In contrast, in the case of the LR-0727(2) coated specimens, desquamation arose. Therefore, the adhesive property of LR-0727(1) was superior to that of LR-0727(2). The pencil hardness had a 3H average for all of the coating solutions and heat treatment conditions. In the case of a corrosion resistance test with boiling water, the coated specimens of LR-0727(1) were discolored, but LR-0727(2) was not. Finally, LR-0727(1) was more moisture proof than LR-0727(2).

A Case of Irritant Dermatitis Caused by Wood Vinegar on Pustulosis Palmaris et Plantaris (수족농포증에 목초액 사용 후 발생한 자극 피부염 치험 1례)

  • Kim, Kyung-Han;Hong, Jee-Hee;Jung, Hoon;Jung, Hyun-A
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.27 no.2
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    • pp.75-82
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    • 2014
  • Objectives : The purpose of this study is to report the oriental treatment on Irritant Dermatitis Caused by Wood Vinegar on Pustulosis Palmaris et Plantaris. Methods : After using Wood Vinegar, a patient suffers from erythema, pruritus, pain, desquamation of skin and degeneration of Pustulosis Palmaris et Plantaris. The patient was admitted to Dunsan oriental hospital for 15 days and took an oriental(venesection, herbal-medicine, and vapor treatment) treatment. To evaluate the results of this treatment, the improvement of symptoms(vesicles, pruritus, pain) was identified by patient's subjective expression and in lesion-symptom improvement. Results : The symptoms caused by Wood vinegar on both palms and soles were improved but the desquamation of skin remained. Conclusions : This study shows that the oriental medical treatment effects on the irritant dermatitis caused by Wood Vinegar. Also, the public should be aware of indiscreetly-used, natural herbal products as a folk remedy.

Chronic Desquamative Gingivitis (만성 박리성 치은염)

  • Yoon, Jung-Hoon;Choi, Seong-Ho
    • Journal of Periodontal and Implant Science
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    • v.30 no.3
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    • pp.631-639
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    • 2000
  • Desquamative gingivitis is characterized by a diffuse erythema of the free and attached gingiva associated with areas of vesiculation, erosion, and desquamation. Desquamative gingivitis is not a distinct disease entity but represents a reaction pattern of the gingiva to various stimuli. Pemphigus vulgaris, cicatricial pemphigoid, and lichen planus may presents as desquamative gingivitis. We observed 3 patients whose disease was limited to the gingiva, and studied them by light and direct immunofluorescence microscope. We classified them according to clinical, histologic, and immunopathologic observations. Identification of the underlying causes of desquamative gingivitis is of utmost importance and is dependent upon clinical, histologic, and immunologic criteria.

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Histopathological Studies on the Experimental Lead Poisoning in Rats (실험적 납중독 랫드의 조직병리학적 관찰)

  • 권오덕;신태균
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.70-75
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    • 2000
  • This study was undertaken to find out the effect of lead on histopathological changes in rat. Thirty female Wistar rats, 7 weeks old, were divided into a control and two experimental groups. The control was received normal diet. The two experimental groups were received diets contaminated artificially with 10 or 5,000 ug/g of lead administration group, histopathological changes were observed in the kidney, liver, heat, brain and lung from the 4th week of experiment. Desquamation of renal epithelia and inclusion bodies in the epithelia of renal tubules were demonstrated in the kidneys. But the liver did not show acid-fast inclusion body. Degeneration of cardiac muscles were seen. The number of mast cells were increased in the cardiac muscles. Darkly stained neurons in the cerebral cortex, some inflammatory cells around meningeal vessels and distended Virchow-Robin spaces were observed.

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Strength Properties of Prepacked Polymer Mortar Using MMA-Based Binders (MMA를 이용한 프리팩트 폴리머 모르터의 강도특성)

  • Yeon, Kyu-Seok;Lee, Hyun-Jong;Ryu, Neung-Hwan;Jin, Xing-Qi;Lee, Chi-Won
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2005.10a
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    • pp.117-122
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    • 2005
  • Prepacked polymer mortar that is mainly composed of MMA monomer and used for the patching and restoring materials of concrete structures was developed, and its hardening and strength properties were experimentally surveyed. Results of study show that the permeance of binder into the aggregate was excellent for the case of PMMA mixing ratio of below 10%, the surface hardening inferiority was not generated for the case of the ratio of over 5%. Working time of the prepacked polymer mortar and hardening shrinkage tended to decrease as the PMMA mixing ratio increased. On the other hand, the ratio turned out not to decisively affect on compressive and flexural strengths. Regardless of PMMA mixing content, the adhesive strength was about 2.5 MPa. Occurring the desquamation on the substrate of cement concrete showed the adhesive strength of MMA prepact polymer mortar was excellent.

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