The Experts below are selected from a list of 21702 Experts worldwide ranked by ideXlab platform
Zoe Kececioglu Draelos - One of the best experts on this subject based on the ideXlab platform.
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Facial Skin care products and cosmetics
Clinics in Dermatology, 2014Co-Authors: Zoe Kececioglu DraelosAbstract:Facial Skin care products and cosmetics can both aid or incite Facial dermatoses. Properly selected Skin care can create an environment for barrier repair aiding in the re-establishment of a healing biofilm and diminution of Facial redness; however, Skin care products that aggressively remove intercellular lipids or cause irritation must be eliminated before the red face will resolve. Cosmetics are an additive variable either aiding or challenging Facial Skin health.
Jeung Hoon Lee - One of the best experts on this subject based on the ideXlab platform.
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regional difference in sebum production by androgen susceptibility in human Facial Skin
Experimental Dermatology, 2014Co-Authors: Youngjoon Seo, Dae Kyoung Choi, Kyung Cheol Sohn, Hyeong Rae Kim, Young Lee, Chang Deok Kim, Youngho Lee, Ge Shi, Jeung Hoon LeeAbstract:Androgens are important hormones that influence sebum production from the sebaceous glands. Human Facial Skin can be categorized as T- and U-zones, which are areas with high and low levels of sebum secretion, respectively. This study was performed to investigate whether there are topographical differences in androgen receptor (AR) expression related to regional variations in Facial sebum secretion. The results of in vivo analysis indicated a statistically significant increase in AR expression in the sebaceous gland T-zones compared with the U-zones. In vitro experiments using human primary sebocytes also yielded similar results, with higher levels of AR protein and mRNA expression in T-zones. The results of this study suggested that differences in androgen susceptibility may be an important factor influencing regional differences in sebum production in human Facial Skin.
Marcin Ambroziak - One of the best experts on this subject based on the ideXlab platform.
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Intra-rater reproducibility of shear wave elastography in the evaluation of Facial Skin
Postepy dermatologii i alergologii, 2019Co-Authors: Łukasz Paluch, Bartłomiej Noszczyk, Piotr Pietruski, Bartłomiej Kwiek, Marcin AmbroziakAbstract:Recently, esthetic medicine has been gaining its momentum worldwide, mostly due to the development of minimally invasive techniques. In our opinion, elastography can be a candidate for an objective quantitative method to evaluate Facial Skin condition. The aim of this study was to determine intra-rater reproducibility of shear wave elastography (SWE) in the evaluation of Facial Skin in patients qualified for minimally invasive nonsurgical Facial rejuvenation treatment. To determine intra-rater reproducibility of shear wave elastography (SWE) in the evaluation of Facial Skin in patients qualified for minimally invasive nonsurgical Facial rejuvenation treatment. The study included 57 women between 40 and 67 years of age (mean: 51.5 ±7.3 years). Prior to the laser treatment, all participants were subjected to ultrasonographic examination and elastography of the Skin. Upon visualization of the area of interest, the thickness of the dermis, subcutaneous tissue and superficial muscular aponeurotic system (SMAS) in millimeters was measured. Then, SWE was performed. No statistically significant differences were found in intraclass coefficient values (ICC) for elastographic parameters of the Skin on the right and left side of the face (0.953 ±0.001 vs. 0.953 ±0.001, p = 0.992). Moreover, no significant differences were observed in the ICC values for the SWE parameters of various Skin layers: dermis, subcutaneous tissue and SMAS (0.945 ±0.001 vs. 0.953 ±.001 vs. 0.961 ±0.001, p = 0.597). Women with normal body weight and overweight did not differ significantly in terms of their elastographic parameters of Facial Skin. Shear wave elastography is a reliable method for the evaluation of Facial Skin elasticity, providing highly reproducible results in all patients, regardless of their age and body weight. Copyright: © 2019 Termedia Sp. z o. o.
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Shear Wave Elastography in the Evaluation of Facial Skin Stiffness After Focused Ultrasound Treatment.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2019Co-Authors: Lukasz Paluch, Marcin Ambroziak, Piotr Pietruski, Bartłomiej NoszczykAbstract:Background No objective method for the evaluation of Facial aesthetic procedures has been proposed thus far. The authors hypothesized that shear wave elastography may be an appropriate method to evaluate the outcomes of some aesthetic treatments. Objective The aim of the study was to compare elastographic parameters of Facial Skin, subcutaneous fat, and superficial musculoaponeurotic system before high-intensity focused ultrasound treatment and 60 days after this procedure. Methods and materials The study included 57 female patients aged 51.5 ± 7.3 years. Shear wave elastography of Facial Skin was performed before the aesthetic procedure and 2 months thereafter. Results Baseline stiffness of all examined layers correlated inversely with patients' age. Sixty days after the aesthetic treatment, the stiffness of all tissues improved significantly. The extent of the improvement correlated inversely with patients' body mass index. Conclusion Shear wave elastography can accurately assess the outcomes of Facial treatment with high-intensity focused ultrasound. Using this method, the authors documented improved stiffness of Facial Skin as early as 60 days after the procedure. The beneficial effect of the aesthetic treatment was observed regardless of patients' age but was less evident in women with excess body weight.
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Elastography reference values of Facial Skin elasticity.
Postepy dermatologii i alergologii, 2018Co-Authors: Marcin Ambroziak, Piotr Pietruski, Bartłomiej Noszczyk, Wiesław Guz, Łukasz PaluchAbstract:Introduction With an introduction of new ultrasonographic transducers, Skin elastography may find an application in dermatology and aesthetic medicine enabling direct evaluation of various pathological or natural processes. Aim To verify which elastographic technique, strain elastography (SE) or shear wave elastography (SWE), is a better candidate for the reference method of Facial Skin elasticity examination and to determine normal ranges for elastographic parameters in various Facial regions. Material and methods The study included 71 female volunteers (age: 40-67 years, mean: 52 ±7.5 years). All participants were subjected to SE and SWE of the Skin in five anatomical regions: the forehead, suborbital regions, cheeks, nasolabial folds and chin. Reference ranges for elastographic parameters were defined as 95% confidence intervals and ±2 standard deviations and estimated by means of ROC analysis. Results Shear wave elastography parameters, but not SE indices, showed strong inverse correlations with the patient age. No significant correlations were found between SE and SWE parameters of the Facial Skin. In contrast to SWE, no significant correlations were observed between bilateral SE parameters. Based on these findings, SWE was chosen as the reference method to determine age-specific normative values for the elasticity of the Facial Skin. Reference and cut-off values of SWE parameters were defined for three age groups. Conclusions Shear wave elastography is suitable for the determination of elastographic parameters of normal Facial Skin, and can be used to determine reference ranges thereof. Elasticity of the Facial Skin decreases considerably with age, and this factor should be considered during determination of reference values for the elastographic parameters.
Nan Liang - One of the best experts on this subject based on the ideXlab platform.
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Facial Skin blood flow responses during exposures to emotionally charged movies
The journal of physiological sciences : JPS, 2017Co-Authors: Kanji Matsukawa, Kana Endo, Kei Ishii, Momoka Ito, Nan LiangAbstract:The changes in regional Facial Skin blood flow and vascular conductance have been assessed for the first time with noninvasive two-dimensional laser speckle flowmetry during audiovisually elicited emotional challenges for 2 min (comedy, landscape, and horror movie) in 12 subjects. Limb Skin blood flow and vascular conductance and systemic cardiovascular variables were simultaneously measured. The extents of pleasantness and consciousness for each emotional stimulus were estimated by the subjective rating from -5 (the most unpleasant; the most unconscious) to +5 (the most pleasant; the most conscious). Facial Skin blood flow and vascular conductance, especially in the lips, decreased during viewing of comedy and horror movies, whereas they did not change during viewing of a landscape movie. The decreases in Facial Skin blood flow and vascular conductance were the greatest with the comedy movie. The changes in lip, cheek, and chin Skin blood flow negatively correlated (P
Bartłomiej Noszczyk - One of the best experts on this subject based on the ideXlab platform.
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Intra-rater reproducibility of shear wave elastography in the evaluation of Facial Skin
Postepy dermatologii i alergologii, 2019Co-Authors: Łukasz Paluch, Bartłomiej Noszczyk, Piotr Pietruski, Bartłomiej Kwiek, Marcin AmbroziakAbstract:Recently, esthetic medicine has been gaining its momentum worldwide, mostly due to the development of minimally invasive techniques. In our opinion, elastography can be a candidate for an objective quantitative method to evaluate Facial Skin condition. The aim of this study was to determine intra-rater reproducibility of shear wave elastography (SWE) in the evaluation of Facial Skin in patients qualified for minimally invasive nonsurgical Facial rejuvenation treatment. To determine intra-rater reproducibility of shear wave elastography (SWE) in the evaluation of Facial Skin in patients qualified for minimally invasive nonsurgical Facial rejuvenation treatment. The study included 57 women between 40 and 67 years of age (mean: 51.5 ±7.3 years). Prior to the laser treatment, all participants were subjected to ultrasonographic examination and elastography of the Skin. Upon visualization of the area of interest, the thickness of the dermis, subcutaneous tissue and superficial muscular aponeurotic system (SMAS) in millimeters was measured. Then, SWE was performed. No statistically significant differences were found in intraclass coefficient values (ICC) for elastographic parameters of the Skin on the right and left side of the face (0.953 ±0.001 vs. 0.953 ±0.001, p = 0.992). Moreover, no significant differences were observed in the ICC values for the SWE parameters of various Skin layers: dermis, subcutaneous tissue and SMAS (0.945 ±0.001 vs. 0.953 ±.001 vs. 0.961 ±0.001, p = 0.597). Women with normal body weight and overweight did not differ significantly in terms of their elastographic parameters of Facial Skin. Shear wave elastography is a reliable method for the evaluation of Facial Skin elasticity, providing highly reproducible results in all patients, regardless of their age and body weight. Copyright: © 2019 Termedia Sp. z o. o.
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Shear Wave Elastography in the Evaluation of Facial Skin Stiffness After Focused Ultrasound Treatment.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2019Co-Authors: Lukasz Paluch, Marcin Ambroziak, Piotr Pietruski, Bartłomiej NoszczykAbstract:Background No objective method for the evaluation of Facial aesthetic procedures has been proposed thus far. The authors hypothesized that shear wave elastography may be an appropriate method to evaluate the outcomes of some aesthetic treatments. Objective The aim of the study was to compare elastographic parameters of Facial Skin, subcutaneous fat, and superficial musculoaponeurotic system before high-intensity focused ultrasound treatment and 60 days after this procedure. Methods and materials The study included 57 female patients aged 51.5 ± 7.3 years. Shear wave elastography of Facial Skin was performed before the aesthetic procedure and 2 months thereafter. Results Baseline stiffness of all examined layers correlated inversely with patients' age. Sixty days after the aesthetic treatment, the stiffness of all tissues improved significantly. The extent of the improvement correlated inversely with patients' body mass index. Conclusion Shear wave elastography can accurately assess the outcomes of Facial treatment with high-intensity focused ultrasound. Using this method, the authors documented improved stiffness of Facial Skin as early as 60 days after the procedure. The beneficial effect of the aesthetic treatment was observed regardless of patients' age but was less evident in women with excess body weight.
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Elastography reference values of Facial Skin elasticity.
Postepy dermatologii i alergologii, 2018Co-Authors: Marcin Ambroziak, Piotr Pietruski, Bartłomiej Noszczyk, Wiesław Guz, Łukasz PaluchAbstract:Introduction With an introduction of new ultrasonographic transducers, Skin elastography may find an application in dermatology and aesthetic medicine enabling direct evaluation of various pathological or natural processes. Aim To verify which elastographic technique, strain elastography (SE) or shear wave elastography (SWE), is a better candidate for the reference method of Facial Skin elasticity examination and to determine normal ranges for elastographic parameters in various Facial regions. Material and methods The study included 71 female volunteers (age: 40-67 years, mean: 52 ±7.5 years). All participants were subjected to SE and SWE of the Skin in five anatomical regions: the forehead, suborbital regions, cheeks, nasolabial folds and chin. Reference ranges for elastographic parameters were defined as 95% confidence intervals and ±2 standard deviations and estimated by means of ROC analysis. Results Shear wave elastography parameters, but not SE indices, showed strong inverse correlations with the patient age. No significant correlations were found between SE and SWE parameters of the Facial Skin. In contrast to SWE, no significant correlations were observed between bilateral SE parameters. Based on these findings, SWE was chosen as the reference method to determine age-specific normative values for the elasticity of the Facial Skin. Reference and cut-off values of SWE parameters were defined for three age groups. Conclusions Shear wave elastography is suitable for the determination of elastographic parameters of normal Facial Skin, and can be used to determine reference ranges thereof. Elasticity of the Facial Skin decreases considerably with age, and this factor should be considered during determination of reference values for the elastographic parameters.
