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1.
目的:探讨痤疮、激素依赖性皮炎、特应性皮炎和干燥性湿疹等不同原因导致敏感性皮肤的皮肤生理功能特点,指导敏感性皮肤的护理和治疗.方法:选取各种原因导致的敏感性皮肤受试者154名,均为女性.运用无创性皮肤生理功能测试仪测量受试者的皮肤皮脂含量、角质层含水量和经表皮水分丢失(TEWL).结果:与单纯敏感性皮肤比较,痤疮组皮脂含量较高(P<0.05),激素依赖性皮炎组TEWL值较高(P<0.05),特应性皮炎和干燥性湿疹组皮脂含量、角质层含水量较低,而TEWL值较高(P<0.05),其余参数比较差异无统计学意义;与痤疮导致的敏感性皮肤比较,激素依赖性皮炎组皮脂含量较低(P<0.05),TEWL值较高(P<0.05),特应性皮炎和干燥性湿疹组皮脂含量、角质层含水量较低(P<0.05),而TEWL值较高(P<0.05),其余参数比较差异无统计学意义;与激素依赖性皮炎导致的敏感性皮肤比较.特应性皮炎和干燥性湿疹组皮脂含量较低(P<0.05),其余参数比较差异无统计学意义.结论:不同原因导致敏感性皮肤的皮肤屏障功能状态不完全一致,应根据不同病因对敏感性皮肤进行治疗和护理.  相似文献   

2.
目的检测乌鲁木齐地区维吾尔族、汉族痤疮患者面部皮肤生理指标,比较不同民族之间的差异。方法选取维吾尔族痤疮患者80例及汉族痤疮患者80例,两组患者年龄及性别分布相比差异均无统计学意义(P 0.05)。分别测定额部、鼻部、面颊部的经皮水分丢失量(TEWL)、面部含水量、皮脂量、皮肤红色素值;测定额部、眼部、面颊部的皮肤弹性的数据。结果维吾尔族痤疮患者面部角质层含水量在额部、鼻部、面颊部与汉族相比均低于汉族,差异均有统计学意义(P 0.05);维吾尔族痤疮患者面部TEWL在额部、鼻部、面颊部与汉族相比均高于汉族,差异均有统计学意义(P 0.05);维吾尔族痤疮患者面部皮肤油脂含量在额部、鼻部与汉族相比均高于汉族,差异均有统计学意义(P 0.05);维吾尔族和汉族痤疮患者前额、鼻部的皮肤红色素值差异无统计学意义(P 0.05),面颊部红色素值有统计学意义(P 0.05)。维吾尔族和汉族痤疮患者前额、眼角和面颊部的皮肤弹性值差异无统计学意义(P 0.05)。结论乌鲁木齐地区不同民族痤疮患者可能因为饮食习惯不同导致皮肤屏障功能的差异,需要个体化的干预治疗。  相似文献   

3.
目的:探讨寻常型银屑病患者皮损区与非皮损区、患者与正常人皮肤屏障功能相关指标之间的差异。方法:1.收集寻常型银屑病患者35例,健康志愿者36例,使用皮肤屏障功能测试仪测定患者皮损区、非皮损区、健康志愿者的皮肤角质层含水量、PH值及经皮水分流失(TEWL)。2.收集30例寻常型银屑病患者与34例健康志愿者的血清,分别采用压板法、分光光度法测定NO、VitE水平。结果:寻常型银屑病患者皮损区PH值为(5.69±0.61)高于非皮损区PH值和健康对照组PH值;皮损区含水量为(17.90±6.75),低于非皮损区及健康对照组;皮损区TEWL为(18.58±11.55)g/m2h,高于非皮损区和健康对照组;然而非皮损区与健康对照组的PH值、角质层含水量及TEWL无统计学差异;寻常型银屑病患者血清维生素E含量(7.27±0.96)μg/mL低于健康对照组,银屑病组血清NO含量(5.29±1.91)μg/mL高于健康对照组。结论:寻常型银屑病患者皮损区,皮肤屏障功能指标异常,表现在皮肤表面PH值升高、角质层含水量下降、TEWL值升高、血清VitE下降、血清NO升高。  相似文献   

4.
目的 了解昆明地区成年女性皮肤屏障功能在年龄及部位上的差异.方法 将150名昆明地区(18 ~70)岁的女性志愿者分为3个不同年龄组,分别为:青年组(18~ 34岁)、中年组(35 ~ 49岁)及老年组(50~70岁),每组50人.采用无创性皮肤检测仪对志愿者的左侧面颊部及额中部进行水分、油脂及TEWL的检测.结果 青年组面颊部水分(38.46±5.70)、油脂(60.70±35.78)及额中部水分(39.57±5.08)、油脂(104.56±45.40)含量最高,老年组面颊部水分(31.00±6.09)、油脂(26.87±16.71)及额中部水分(32.54±5.84)、油脂(39.67±24.44)含量最低.而面颊部TEWL(10.76±3.95)及额中部TEWL(10.13±3.76)均在青年组检测值最低.各年龄组女性额中部的油脂明显高于面颊部,差异均有统计学意义(P<0.05),每个年龄组面颊部水分与额中部水分比较,面颊部TEWL与额中部TEWL比较均无明显差异(P>0.05).结论 昆明地区成年女性面颊部及额中部水分、油脂随年龄增长而逐渐减少,而TEWL值随年龄增长逐渐增大.  相似文献   

5.
【摘要】 目的 探讨上海两个社区特应性皮炎(AD)患儿及健康对照儿童皮肤屏障功能及AD皮损严重程度与皮肤屏障功能的相关性。方法 3 ~ 12岁AD患儿169例和健康对照儿童142例来自上海长宁新泾社区和嘉定菊园社区,检测前臂伸侧、屈侧及脸颊、胫前4个部位非皮损区的角质层含水量和经皮失水量(TEWL)。并用欧洲AD评分标准(SCORAD)对AD患儿临床严重程度进行评分。结果 AD患儿前臂伸侧、屈侧及脸颊、胫前四个部位的TEWL值均高于健康对照儿童(P < 0.05),角质层含水量在前臂伸侧和胫前均显著低于健康对照儿童(P < 0.05)。AD患儿SCORAD与TEWL均值呈正相关,与角质层含水量均值呈负相关。结论 皮肤屏障功能可以作为评价AD临床严重程度的指标之一。  相似文献   

6.
目的 探讨表皮蛋白质、板层小体的变化对激素依赖性皮炎皮肤屏障变化的影响。 方法 无创性皮肤测试比较60例激素依赖性皮炎患者与40例正常人,皮肤经表皮水分流失(TEWL)的差异,13例患者及10例正常人配合皮损取材,行HE染色观察皮损组织病理学变化。免疫组化观察患者表皮K6、K10、K14、K15、兜甲蛋白、丝聚合蛋白、内披蛋白的变化。电镜观察板层小体密度的变化。结果 与正常人比较,患者TEWL增加,差异有统计学意义(P < 0.05),显示皮肤屏障功能受损。患者皮损的组织病理学为非特异性炎症表现,根据临床特点,各类皮损的组织病理学表现存在一定差异。免疫组化示患者表皮K10、K14、丝聚合蛋白、兜甲蛋白、内披蛋白的表达均减少,K15出现异常表达,差异均有统计学意义(P < 0.05),显示表皮增殖、分化受抑制,CE结构受损;电镜下颗粒层内板层小体数量减少,密度降低。结论 与正常人皮肤比较,激素依赖性皮炎患者皮肤屏障结构受到破坏,恢复皮肤屏障对治疗激素依赖性皮炎具有重要意义。  相似文献   

7.
目的 了解北京市健康儿童不同部位皮肤理化参数的数值及差别.方法 将北京116名健康儿童分为4组.采用皮肤水分流失测试仪TM300、皮肤水分测试仪CM825及皮肤酸碱度测试仪PH905检测前额、颊前、前臂3个部位的经表皮失水(TEWL)、水分和pH值,皮肤黑素和血红蛋白测试探头MX18测量面部的黑素值.结果 ①不同年龄及不同部位的TEWL值,差异无统计学意义(P>0.05);②角质层含水量值(额部、面颊部和前臂):<1岁组分别为51.53±15.70、39.88±10.48、50.33±17.54;1~3岁组分别为49.95±17.88、32.51±12.09、36.10±7.43;4~6岁组分别为51.37±10.60、31.65±9.01、34.41±8.21;7~12岁组分别为49.74±10.64、39.99±50.43、29.35±8.10;不同年龄的角质层含水量,差异无统计学意义(P>0.05);在不同部位,差异有统计学意义(P<0.05),颊部和前臂角质层含水量明显低于额部;③pH值(额部、面颊部和前臂):<1岁组分别为5.27±0.60、6.12±0.51、5.48±0.45;1~3岁组分别为4.68±0.58、6.80±0.55、5.07±0.58;4~6岁组分别为4.58±0.37、5.70±0.48、5.09±0.49;7~12岁组分别为4.87±0.51、5.72±0.49、5.09±0.51;不同年龄的pH值,差异无统计学意义(P>0.05),在不同部位,差异有统计学意义(P<0.05),颊部pH值明显高于前臂和额部;④不同年龄的面部皮肤黑素值,差异无统计学意义(P>0.05).结论 健康儿童皮肤理化参数在不同部位存在一定差异.  相似文献   

8.
目的探讨类人胶原蛋白敷料治疗面部脂溢性皮炎的疗效、安全性及其对皮肤屏障功能的影响。方法将20~50岁女性面部脂溢性皮炎患者67例随机入组,试验组患者外用酮康唑乳膏加类人胶原蛋白敷料,对照组患者单独外用酮康唑乳膏,两组患者均用药10 d,观察皮损变化并测定皮肤屏障功能相关指标。结果第2次随访时,试验组症状积分[(1.06±1.06)分]、经皮水分丢失量(transepidermal water loss,TEWL)[(11.99±5.84)g/(m2?h)]均低于对照组[(1.94±1.17)分、(16.17±8.47)g/(m2?h)],角质层含水量(40.20±11.69)高于对照组(34.13±10.86),差异均有统计学意义(P=0.002,0.024,0.033)。两组患者均未出现明显不良反应。结论类人胶原蛋白敷料治疗成年女性面部脂溢性皮炎,能改善皮肤屏障功能,减轻皮损,可以作为面部脂溢性皮炎的一个安全有效的辅助治疗手段。  相似文献   

9.
皮肤屏障修复乳治疗激素依赖性皮炎疗效观察   总被引:1,自引:0,他引:1  
目的 了解雅莎尔皮肤屏障修复乳对面部激素依赖性皮炎皮肤屏障功能改善情况及临床疗效.方法 58例面部激素依赖性皮炎患者随机分成2组,分别采用雅莎尔皮肤屏障修复乳和丁苯羟酸软膏外用,比较治疗前及治疗28 d后患者皮肤屏障功能(表皮含水量、油脂含量、经表皮水分丢失量)及临床症状体征改善情况.结果 雅莎尔皮肤屏障修复乳治疗组患者治疗前后皮肤屏障功能明显改善(P<0.05);临床症状体征改善优于丁苯羟酸软膏组,差异有统计学意义(P<0.01);有效率优于对照组(P<0.01).结论 雅莎尔皮肤屏障修复乳能显著改善皮肤屏障功能,对治疗激素依赖性皮炎具有良好的效果,且更易为患者所接受。  相似文献   

10.
目的评估盐酸黄连素油对面部皮肤屏障功能的修复程度。方法将门诊168例激素依赖性皮炎患者按完全随机原则分为治疗组和对照组,治疗组给盐酸黄连素油外用,对照组给丁酸氢化可的松软膏外用,两组均给盐酸咪唑斯汀缓释片口服和硼酸溶液、硅霜外用。分别于治疗前和治疗后1个月进行皮肤生理功能无创测试,记录测试指标:TEWL(经皮水分丧失量)、皮肤含水量、黑色素、血红蛋白等。结果治疗组治疗后1个月与治疗前的TEWL、皮肤含水量有显著性差异,黑色素、血红蛋白无显著性差异;对照组治疗后1个月与治疗前的TEWL、皮肤含水量、黑色素、血红蛋白均无显著性差异。结论盐酸黄连素油对面部皮肤屏障功能具有显著的修复作用。  相似文献   

11.
Microdermabrasion is a popular method for facial rejuvenation and is performed worldwide. Despite its extensive usage, there are few publications on skin barrier change after microdermabrasion and none concerning diamond microdermabrasion. Our object was to see changes in transepidermal water loss (TEWL), hydration and erythema of the face following diamond microdermabrasion. Twenty-eight patients were included in this spilt face study. TEWL, stratum corneum hydration and the degree of erythema were measured from the right and left sides of the face (forehead and cheek) at baseline. One side of the face was treated with diamond microdermabrasion and the other side was left untreated. Measurements were taken right after the procedure and repeated at set time intervals. Diamond microdermabrasion was associated with a statistically significant increase in TEWL immediately after the procedure and at 24 h. However, on day 2, levels of TEWL were back to baseline. An increase in hydration and erythema was observed right after microdermabrasion, but both returned to baseline on day 1. The results show that skin barrier function of the forehead and cheek recovers within 2 days of diamond microdermabrasion. Diamond microdermabrasion performed on a weekly basis, as presently done, is expected to allow sufficient time for the damaged skin to recover its barrier function in most parts of the face.  相似文献   

12.
Background/aims: The aim of this study was to compare the biophysical properties of different facial zones. Methods: We investigated transepidermal water loss (TEWL), skin temperature and sebum casual level (CL) on 90 adjacent test sites distributed on the forehead, cheeks and chin of five women. Results: All three parameters showed a symmetrical distribution around the facial median line. Only minor variations of individual values were found within the forehead and the chin areas. In contrast, the cheeks exhibited a distinct gradient with highest values in the paranasal zones and lowest on the cheek bones for all of the three parameters. The mean values on both cheeks of a given individual were nearly identical, and the patterns within the two cheeks were superimposable. Both CL and skin temperature distributions pointed out a “T‐zone” with highest values on the forehead, on the chin and on the median part of the cheek. Conclusions: Our data demonstrate that biophysical skin properties differ considerably between different facial areas but that they follow a characteristic distribution.  相似文献   

13.
目的探讨特应性皮炎(AD)患儿与健康儿童皮肤屏障功能的差异。方法 0~7岁的AD患儿和健康儿童各60名,根据不同年龄段分成2组,0~2岁组和2~7岁组各30例。依次进行角质层含水量、pH值、经表皮水分丢失量(TEWL)的测量,使用SPSS13.0统计软件分析。结果 0~2岁、2~7岁AD患儿与健康儿童比较,角质层含水量除前臂无差异外,前额和颊前均明显低于健康对照组;皮肤表面pH值均明显高于健康对照组;0~2岁的AD患儿TEWL值除前臂无差异外,前额和颊前均明显高于健康对照组,而2~7岁AD患儿TEWL值均明显高于健康对照组。结论 AD患儿与健康儿童比较,皮肤屏障功能存在障碍。表现为角质层含水量、皮肤表面pH值、TEWL值有不同程度的差异。  相似文献   

14.
Background/aims: Understanding structural and functional differences between facial areas is necessary for the formulation of cosmetics and dermatological preparations well tailored to the skin's biophysical characteristics. The objective of the present study was to compare biophysical parameters on malar and frontal facial areas of healthy women classified according to self-reported cosmetic skin types.
Methods: The study population comprised 253 women aged from 20 to 50 years who did not display any signs of dermatological disease. Women declared spontaneously their cosmetic skin type. Skin capacitance, sebum casual level, skin temperature, transepidermal water loss (TEWL), skin colour and relief were assessed on cheeks and forehead in a controlled environment.
Results: All biophysical parameters showed statistically significant differences between the two zones. Mean a* chromametric values and TEWL values were significantly higher on cheeks. In contrast, mean b * chromametric values and sebum casual levels showed the highest values on the forehead. Moreover, skin capacitance, temperature, roughness and L .* chromametric value showed minor, while statistically significant, differences between the two zones. With marginal exceptions, the differences between the facial zones for each biophysical parameter remained statistically significant, irrespective of self-reported skin type.
Conclusion: Biophysical parameter mean values differ between frontal and malar zones regardless of self-reported skin type. Except for the elevated sebum casual levels in "greasy" and "combined" skin, no single or combined biophysical characteristics could be linked to any of the self-reported skin types. Furthermore our data confirm that in contrast to the common belief that "dry" skin is associated with reduced sebum production, sebum levels in women declaring to have "dry" skin and those declaring to have "normal" skin were not found to be different.  相似文献   

15.
The aim of the study was to disclose interactions between epidermal barrier, skin irritation and sensitization in healthy and diseased skin. Transepidermal water loss (TEWL) and stratum corneum hydration (SCH) were assessed in adult patients with atopic dermatitis (AD), rosacea and healthy controls. A 4‐h patch test with seven concentrations of sodium lauryl sulphate was performed to determine the irritant threshold (IT). Contact sensitization pattern was revealed by patch testing with European baseline series. Subjects with a lower IT had higher TEWL values and lower SCH. Subjects with positive allergic reactions had significantly lower IT. In AD, epidermal barrier deterioration was detected on both volar forearm and nasolabial fold, while in rosacea, impeded skin physiology parameters were observed on the facial skin only, suggesting that barrier impediment is restricted to the face in rosacea, in contrast with AD where the abnormal skin physiology is generalized.  相似文献   

16.
Patients with atopic skin show a defective barrier function both in rough and in clinically normal skin, with an increasing risk of developing contact dermatitis. Moisturizing creams are often used in the treatment of dry skin. The purpose of this study was to investigate the influence of treatment with a urea-containing moisturizer on the barrier properties of atopic skin. Fifteen patients with atopic dermatitis treated one of their forearms twice daily for 20 days with a moisturizing cream. Skin capacitance and transepidermal water loss (TEWL) were measured at the start of the study and after 10 and 20 days. On day 21 the skin was exposed to sodium lauryl sulphate (SLS) and on day 22 the irritant reaction was measured non-invasively. Skin capacitance was significantly increased by the treatment, indicating increased skin hydration. The water barrier function, as reflected by TEWL values, tended to improve (P = 0.07), and the skin susceptibility to SLS was significantly reduced, as measured by TEWL and superficial skin blood flow (P < 0.05). Thus, it seems that certain moisturizers could improve skin barrier function in atopics and reduce skin susceptibility to irritants. The mechanism and the clinical relevance need further investigation.  相似文献   

17.
Background  Atopic dermatitis is a disease of skin barrier dysfunction and outside stimuli can cross the skin barrier.
Objectives  To examine a new method for evaluating the outside to inside skin transparency with a colorimeter and yellow dyes.
Methods  In study 1, a total of 28 volunteer subjects (24 normal and four with atopic dermatitis) participated. After provocation with yellow dye, the skin colour of all the subjects was measured using a colorimeter. The skin transparency index was calculated by the changes of the skin colour to yellow. Other variables of skin function, including transepidermal water loss (TEWL) and stratum corneum hydration, were also measured. In study 2, the skin transparency index was evaluated for a cohort of 38 patients with atopic dermatitis, 27 subjects with dry skin and 29 healthy controls.
Results  In study 1, the measurement of skin colour (b*) using tartrazine showed good results. There was a significant relationship between the skin transparency index with tartrazine and the atopic dermatitis score ( P  =   0·014). No other measurements of skin function, including the TEWL, were correlated. In study 2, the skin transparency index score obtained with tartrazine in the patients with atopic dermatitis was significantly higher than that of the controls and those with dry skin ( P  <   0·001 and P  =   0·022, respectively). However, the TEWL in patients with atopic dermatitis was not significantly higher than that of patients with dry skin and the TEWL in subjects with dry skin was not higher than that of the controls.
Conclusions  This method, which used a colorimeter and food dye, is noninvasive, safe and reliable for the evaluation of out–in skin transparency and can demonstrate the characteristic dysfunction in the skin barrier in patients with atopic dermatitis.  相似文献   

18.
Background  Two types of atopic dermatitis (AD) have been proposed, with different pathophysiological mechanisms underlying this seemingly heterogeneous disorder. The extrinsic type shows high IgE levels presumably as a consequence of skin barrier damage and feasible allergen permeation, whereas the intrinsic type exhibits normal IgE levels and is not mediated by allergen-specific IgE.
Objectives  To investigate the relationship between pruritus perception threshold and skin barrier function of patients with AD in a comparison between the extrinsic and intrinsic types.
Methods  Enrolled in this study were 32 patients with extrinsic AD, 17 with intrinsic AD and 24 healthy individuals. The barrier function of the stratum corneum was assessed by skin surface hydration and transepidermal water loss (TEWL), and pruritus perception was evaluated by the electric current perception threshold (CPT) of sensory nerves upon neuroselective transcutaneous electric stimulation.
Results  Skin surface hydration was significantly lower and TEWL was significantly higher in extrinsic AD than intrinsic AD or normal controls. Although there was no statistically significant difference in CPT among extrinsic AD, intrinsic AD and normal controls, CPT was significantly correlated with skin surface hydration and inversely with TEWL in intrinsic AD and normal controls, but not extrinsic AD. Finally, CPT was correlated with the visual analogue scale of itch in the nonlesional skin of patients with extrinsic but not intrinsic AD.
Conclusions  Patients with extrinsic AD have an impaired barrier, which increases the pre-existing pruritus but rather decreases sensitivity to external stimuli. In contrast, patients with intrinsic AD retain a normal barrier function and sensory reactivity to external pruritic stimuli.  相似文献   

19.
Background Peristomal skin problems are common, most often the result is disruption of the skin barrier and this may account for more than one in three visits to ostomy nurses. Therefore a specific assessment of individual risk factors relating to the skin barrier function would be of great interest. Methods Skin barrier integrity in ostomy patients with peristomal skin problems (PSP) was compared with that of ostomy patients with normal skin (controls) using transepidermal water loss (TEWL). Mechanical barrier disruption was determined by a tape stripping test and chemical barrier disruption [sodium lauryl sulphate (SLS) 0·25%]. Results Patients and controls had a highly significant increase in TEWL value in the peristomal area compared with nonperistomal contralateral abdominal skin (P < 0·0001 for both groups). The skin barrier of normal‐looking contralateral skin of ostomates was found to be borderline impaired in patients with PSP compared with those without. A linear association was seen between the number of tape strips removed and TEWL for both cases and controls. Tape stripping suggested that patients with PSP had less resilient skin (P = 0·002). A significant difference in TEWL value between cases and controls was also seen for the SLS patch test on the dorsal skin (P = 0·02). Conclusion Successive tape stripping, a situation analogous to the normal use of a pouching system, caused a higher degree of barrier damage more rapidly in patients with PSP, indicating an impaired mechanical quality of the barrier. The SLS exposure test suggested a generally increased susceptibility to irritant dermatitis as assessed by TEWL. Our findings suggest tape stripping and SLS testing may have a role as predictive tests to identify patients at risk of PSP.  相似文献   

20.
Objective: To determine the degree of acute skin damage and the time required for the recovery of facial skin barrier function after the skin was treated with micro-needles and nanochips of various tip lengths. Methods: For this split face comparative study, a total of 16 subjects were enrolled and randomly divided into 2 groups. In the first group, one of the facial side of each subject was treated with 0.25-mm long nanotips for a total of 6 times while the other facial side was treated with 0.25-mm traditional micro-needles with a straight blade for a total of 6 times. In the second group, one of the facial side was treated with 0.5-mm nanotips for a total of 6 times while the other facial side was treated with 0.5-mm traditional micro-needles with a straight blade for a total of 6 times. Evaluations for trans-epidermal water loss (TEWL), skin hydration and erythema were carried out at baseline, 0, 4, 8, 24, 48 and 72 hours after the treatment. Results: There was no significant difference in TEWL, skin hydration and erythema between the two facial sides of the subjects in the Group one who were treated with 0.25 mm nanochips and traditional micro-needles. However, in the subjects of the Group two, the mean TEWL of the facial side treated with 0.5 mm nanochips was relatively lower than that of the 0.5 mm traditional micro-needles treated facial side at 0, 4, 8 and 24 hours after the treatment. Mean erythema of the facial side treated with 0.5-mm nanochips micro-needles was also relatively lower than that of the 0.5-mm traditional micro-needles treated facial side at 8 hours after the treatment. Rapid recovery of skin barrier function was observed within 4–8 hours after treatment with various lengths of nanochips while it took at least 48–72 hours for recovery of skin barrier function after treatment with various lengths of traditional micro-needles as measured by TEWL. Conclusion: The skin disruption caused by nanotips treatment recovers quicker than the traditional microneedle treatment at equal lengths.  相似文献   

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