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Skin of Color

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1. Relationship between tooth value and skin color in patients visiting Royal Medical Services clinics of Jordan (Full text)

Relationship between tooth value and skin color in patients visiting Royal Medical Services clinics of Jordan Facial and dental aesthetics are becoming of great concern for patients, especially for the younger generation. Tooth color matching and selection is considered a vital element in order to create an attractive beautiful smile. The importance of tooth color matching is to adjust tooth colors to obtain a good match with adjacent teeth and the skin. This is considered a challenge (...) especially if adjacent teeth were lost or records of patients' teeth color were not available.The aim of this study was to determine the relationship between skin complexion and tooth value in a Jordanian population.A cross-sectional study of 520 individuals who were randomly selected and belonging to different age groups, ranging from 15-65 years, with equal sex distribution. These patients visited the dental clinics at different Jordanian military hospitals. The study was carried out over a period

2018 Electronic physician PubMed

2. Crocodiles Alter Skin Color in Response to Environmental Color Conditions (Full text)

Crocodiles Alter Skin Color in Response to Environmental Color Conditions Many species alter skin color to varying degrees and by different mechanisms. Here, we show that some crocodylians modify skin coloration in response to changing light and environmental conditions. Within the Family, Crocodylidae, all members of the genus Crocodylus lightened substantially when transitioned from dark enclosure to white enclosures, whereas Mecistops and Osteolaemus showed little/no change. The two members (...) of the Family Gavialidae showed an opposite response, lightening under darker conditions, while all member of the Family Alligatoridae showed no changes. Observed color changes were rapid and reversible, occurring within 60-90 minutes. The response is visually-mediated and modulated by serum α-melanocyte-stimulating hormone (α-MSH), resulting in redistribution of melanosomes within melanophores. Injection of crocodiles with α-MSH caused the skin to lighten. These results represent a novel description

2018 Scientific reports PubMed

3. High correlation between skin color based on CIELAB color space, epidermal melanocyte ratio, and melanocyte melanin content (Full text)

High correlation between skin color based on CIELAB color space, epidermal melanocyte ratio, and melanocyte melanin content To treat skin color disorders, such as vitiligo or burns, melanocytes are transplanted for tissue regeneration. However, melanocyte distribution in the human body varies with age and location, making it difficult to select the optimal donor skin to achieve a desired color match. Determining the correlations with the desired skin color measurement based on CIELAB color (...) , epidermal melanocyte numbers, and melanin content of individual melanocytes is critical for clinical application.Fifteen foreskin samples from Asian young adults were analyzed for skin color, melanocyte ratio (melanocyte proportion in the epidermis), and melanin concentration. Furthermore, an equation was developed based on CIELAB color with melanocyte ratio, melanin concentration, and the product of melanocyte ratio and melanin concentration. The equation was validated by seeding different ratios

2018 PeerJ PubMed

4. One Thousand Five Hundred Fifty Nanometer Erbium-Doped Nonablative Fractional Laser for the Treatment of Striae Distensae in Patients of Skin of Color (Fitzpatrick Skin Types IV-VI). (PubMed)

One Thousand Five Hundred Fifty Nanometer Erbium-Doped Nonablative Fractional Laser for the Treatment of Striae Distensae in Patients of Skin of Color (Fitzpatrick Skin Types IV-VI). 29140866 2018 08 13 2018 08 13 1524-4725 44 8 2018 08 Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] Dermatol Surg One Thousand Five Hundred Fifty Nanometer Erbium-Doped Nonablative Fractional Laser for the Treatment of Striae Distensae in Patients of Skin (...) of Color (Fitzpatrick Skin Types IV-VI). 1151-1153 10.1097/DSS.0000000000001411 Park Kelly K KK Pinnacle Dermatology, Joliet, Illinois Dermatology Section, Edward Hines Jr. VA Hospital, Hines, Illinois Department of Dermatology, Mayo Clinic, Rochester, Minnesota Division of Dermatology, Loyola University, Maywood, Illinois. Roberts Erin E Tung Rebecca C RC eng Letter Randomized Controlled Trial United States Dermatol Surg 9504371 1076-0512 IM Abdomen Female Humans Laser Therapy methods Lasers, Solid

2018 Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.]

5. Skin Color, Cultural Capital, and Beauty Products: An Investigation of the Use of Skin Fairness Products in Mumbai, India (Full text)

Skin Color, Cultural Capital, and Beauty Products: An Investigation of the Use of Skin Fairness Products in Mumbai, India The use of skin fairness products that frequently contain toxic ingredients is associated with significant adverse health side effects. Due to the high prevalence of use in Asian and African countries, skin fairness product use is recognized as a growing public health concern. The multi-million-dollar skin fairness product industry has also been criticized for perpetuating (...) racism and social inequalities by reinforcing beliefs about the benefits of skin fairness for cultural capital. No quantitative studies have assessed people's beliefs about fairness and reasons for using or not using these products in India, one of the largest global markets for skin fairness products. The current study explored skin fairness product use among 1,992 women and men aged 16-60 years in the city of Mumbai, India using a self-report questionnaire. A total of 37.6% of the sample reported

2018 Frontiers in public health PubMed

6. Aging in skin of color: Disruption to elastic fiber organization is detrimental to skin's biomechanical function. (PubMed)

Aging in skin of color: Disruption to elastic fiber organization is detrimental to skin's biomechanical function. Skin aging is a complex process involving the additive effects of time-dependent intrinsic aging and changes elicited via skin's interaction with the environment. Maintaining optimal skin function is essential for healthy aging across global populations; yet most research focuses on lightly pigmented skin (Fitzpatrick phototypes I-III), with little emphasis on skin of color (...) , and was accompanied by effacement of rete ridges with reduced deposition of both elastic fibers and fibrillar collagens. In chronically photoexposed dorsal forearm, significant impairment of all biomechanical functions was identified, with complete flattening of rete ridges and marked depletion of elastic fibers and fibrillar collagens. We conclude that in skin of color, both intrinsic aging and photoaging significantly impact skin function and composition, despite the additional photoprotective properties

2018 Journal of Investigative Dermatology

7. Updates in the understanding and treatments of skin & hair disorders in women of color (Full text)

Updates in the understanding and treatments of skin & hair disorders in women of color Skin of color comprises a diverse and expanding population of individuals. In particular, women of color represent an increasing subset of patients who frequently seek dermatologic care. Acne, melasma, and alopecia are among the most common skin disorders seen in this patient population. Understanding the differences in the basic science of skin and hair is imperative in addressing their unique needs. Despite (...) the paucity of conclusive data on racial and ethnic differences in skin of color, certain biologic differences do exist, which affect the disease presentations of several cutaneous disorders in pigmented skin. While the overall pathogenesis and treatments for acne in women of color are similar to Caucasian men and women, individuals with darker skin types present more frequently with dyschromias from acne, which can be difficult to manage. Melasma is an acquired pigmentary disorder seen commonly in women

2017 International journal of women's dermatology PubMed

8. Longitudinal progress of transepidermal water loss, color, and sensory elements in split-thickness skin graft donor sites in East Asians. (PubMed)

Longitudinal progress of transepidermal water loss, color, and sensory elements in split-thickness skin graft donor sites in East Asians. There is little research available that describes the natural progression of split-thickness skin graft (STSG) donor site wounds after re-epithelialization. The purpose of this study was to evaluate the longitudinal clinical progress of transepidermal water loss (TEWL), color, and sensory elements in STSG donor sites in East Asians.Eighteen patients (...) participated in this study. The TEWL, color, pressure threshold, and static two-point discrimination were evaluated from the center and upper lateral corner of the wounds and adjacent normal skin preoperatively and at 1, 2, 7, and 12 months postoperatively.The age was negatively correlated with preoperative values of TEWL (r = -0.49, P = 0.039). The elevated TEWL level from the STSG donor sites did not return to normal until 12 months after surgery. In the measurement of skin color, the elevated L* value

2019 International Journal of Dermatology

9. Lip and Perioral Enhancement With Hyaluronic Acid Dermal Fillers in Individuals With Skin of Color. (PubMed)

Lip and Perioral Enhancement With Hyaluronic Acid Dermal Fillers in Individuals With Skin of Color. Individuals with skin of color are underrepresented in studies of lip and perioral enhancement.To examine the effectiveness and safety of hyaluronic acid (HA) dermal filler treatment for lip and perioral enhancement in subjects with skin of color.Data were pooled from subjects with Fitzpatrick skin phototypes IV, V, or VI in 2 pivotal studies of HA dermal fillers. Photonumeric scales were used (...) ), 90.9% and 46.4%, respectively, were responders. Injection site responses were generally mild or moderate in severity, resolved within 2 weeks, and were consistent with those expected for HA dermal filler treatment. The most common AEs were injection site mass (19.4%) and bruising (12.5%).Lip and perioral enhancement with HA dermal fillers is effective and safe in subjects with skin of color.

2019 Dermatologic Surgery

10. Early fractional carbon dioxide laser intervention for postsurgical scars in skin of color. (Full text)

Early fractional carbon dioxide laser intervention for postsurgical scars in skin of color. Fractional CO2 laser is one of the most effective treatment options used to resurface scars.To evaluate the efficacy and safety of early treatment of postsurgical scar by fractional ablative CO2 laser.A total of 27 Egyptian patients with recent postoperative scars were enrolled in this study. Three sessions of fractional CO2 laser with a 1-month interval were started 4 weeks after surgery. Vancouver Scar

2019 Clinical, cosmetic and investigational dermatology PubMed

11. Evaluation of in vitro testing strategies for hazard assessment of the skin sensitization potential of "real-life" mixtures: the case of henna-based hair coloring products containing p-phenylenediamine. (PubMed)

Evaluation of in vitro testing strategies for hazard assessment of the skin sensitization potential of "real-life" mixtures: the case of henna-based hair coloring products containing p-phenylenediamine. Allergic contact dermatitis reported to henna-based hair coloring products (HPs) has been associated with adulteration of henna with p-phenylenediamine (PPD).To develop a testing approach based on in vitro techniques that address key events within the skin sensitization adverse outcome pathway (...) to evaluate allergenic potential of HPs.The following in vitro assays were used to test the sensitizing capacity of hair dye ingredients: micro-direct peptide reactivity assay (mDPRA); HaCaT keratinocytes-associated IL-18 assay; U937 cell line activation test (USENS)/IL-8 levels; blood monocyte-derived dendritic cell test; genomic allergen rapid detection (GARD skin). Those techniques with better human concordance were selected to evaluate the allergenic potential of ten HPs.Contrasting to the label's

2019 Contact Dermatitis

12. Lasers for Reduction of Unwanted Hair in Skin of Color: A Systematic Review and Meta-analysis. (PubMed)

Lasers for Reduction of Unwanted Hair in Skin of Color: A Systematic Review and Meta-analysis. Light-based therapies are one of the most effective and widely used strategies for removal of undesired hair, with a broadly favorable safety profile. However, subjects with pigmented skin are found to be more prone to laser-related adverse events. While prolonged pulse-width and longer treatment duration were proposed to minimize adverse events, the optimal treatment option among available (...) phototherapy modalities-long-pulsed (Nd: YAG), pulsed diode, and alexandrite lasers as well as intense pulsed light (IPL)-remains unclear, particularly for skin of color. To determine superiority in terms of effectiveness and tolerability, we conducted a systematic review of literature on different types of in-office laser and IPL for hair removal in subjects with Fitzpatrick skin types III-VI. The meta-analysis was performed using Review Manager (RevMan) version 5.3 and included 12 eligible comparative

2019 Journal of the European Academy of Dermatology and Venereology

13. Darker skin color is associated with a lower likelihood of smoking cessation among males but not females. (PubMed)

Darker skin color is associated with a lower likelihood of smoking cessation among males but not females. Darker skin color is associated with discrimination and unfair treatment and may contribute to persisting health disparities. This study examined whether darker skin color was associated with smoking cessation and whether this association was moderated by sex and race. This study also explored whether biological and psychosocial factors, including nicotine and cotinine concentrations (...) , discrimination, distrust, and neuroticism, mediated this association. The data for this study came from a prospective smoking cessation intervention that included 224 Black and 225 White adults from Kansas City, Missouri. Skin color was assessed using a DermaSpectrometer to measure melanin contained within the skin. Point prevalence smoking abstinence was biochemically-verified and assessed at weeks 4 and 26. Hierarchical logistic regression analyses were conducted to evaluate hypothesized relations between

2019 Social Science & Medicine

14. Skin color as a predictor of mental health in young Latinx children. (PubMed)

Skin color as a predictor of mental health in young Latinx children. Racial phenotype shapes the ways in which others perceive and interact with children, with implications for their immediate and long-term well-being. Still, few empirical studies have examined these links in Latinx children.The purpose of this study was to investigate the association between skin color, as a salient marker of racial phenotype, and the mental health of young, Latinx children.The present study was conducted (...) in the United States between 2010 and 2013. Participants (N = 684) were Mexican- and Dominican origin 4 - 5-year olds who were rated based on their skin tone as "moderately dark" (54%), "honorary white" (35%), and "collective black" (11%). Regression models were used to estimate the association between skin color (measured at age 4-5) and internalizing and externalizing behaviors (measured at the end of first grade).By the end of first grade, "collective black" children had higher ratings on several

2019 Social Science & Medicine

15. Integrative genetic analysis suggests that skin color modifies the genetic architecture of melanoma. (Full text)

Integrative genetic analysis suggests that skin color modifies the genetic architecture of melanoma. Melanoma is the deadliest form of skin cancer and presents a significant health care burden in many countries. In addition to ultraviolet radiation in sunlight, the main causal factor for melanoma, genetic factors also play an important role in melanoma susceptibility. Although genome-wide association studies have identified many single nucleotide polymorphisms associated with melanoma, little (...) affecting gene expression in skin account for a significant proportion of the heritability, and are enriched among melanoma risk loci. Finally, by incorporating skin color into our analyses, we observed both a shift in significance for melanoma-associated loci and an enrichment of expression quantitative trait loci among melanoma susceptibility variants. These findings suggest that skin color may be an important modifier of melanoma risk. We speculate that incorporating skin color and other non-genetic

2017 PLoS ONE PubMed

16. Water immersion decreases sympathetic skin response during color-word Stroop test. (Full text)

Water immersion decreases sympathetic skin response during color-word Stroop test. Water immersion alters the autonomic nervous system (ANS) response in humans. The effect of water immersion on executive function and ANS responses related to executive function tasks was unknown. Therefore, this study aimed to determine whether water immersion alters ANS response during executive tasks. Fourteen healthy participants performed color-word-matching Stroop tasks before and after non-immersion (...) ) decreased SCL induced by water immersion was maintained for at least 15 min after water immersion. In conclusion, the present results suggest that water immersion decreases the sympathetic skin response during the color-word Stroop test without altering executive performance.

2017 PLoS ONE PubMed

17. Photodermatoses in skin of color. (PubMed)

Photodermatoses in skin of color. Photodermatoses represent a heterogeneous collection of disorders unified by the characteristic of being provoked through exposure to ultraviolet radiation. Generally, these conditions are classified into the following categories: immunologically mediated photodermatoses, chemical- and drug-induced photosensitivity, photoaggravated dermatoses and photosensitivity associated with defective DNA repair mechanisms or chromosomal instabilities. The list (...) of photodermatoses is extensive, and each individual photodermatosis is understood to a different extent. Regardless, there exists a paucity of information with regards to the clinical presentation among those with skin of colour. With ever-changing global demographics, recognition of photosensitive disorders in a diverse population is essential for accurate diagnoses and therapeutic guidance. The scope of this article seeks to review the epidemiology and clinical variability in presentation

2018 Journal of the European Academy of Dermatology and Venereology

18. Hidradenitis Suppurativa: Disease Burden and Etiology in Skin of Color. (Full text)

Hidradenitis Suppurativa: Disease Burden and Etiology in Skin of Color. Hidradenitis suppurativa (HS) is a chronic, debilitating skin disease. Although most studies on HS are conducted in largely Caucasian populations, evidence demonstrates a higher prevalence in patients with skin of color, including African and Hispanic populations. These racial subgroups are likely at risk for greater disease burden due to a higher prevalence of components of the metabolic syndrome, comorbid depression (...) , and low socioeconomic status; however, there is a paucity of research in these populations. Additionally, studies examining the genetic and anatomical basis for HS, as well as the response to HS therapies, are lacking for patients with skin of color. Complicating this issue is the limited access to effective medical care, including dermatologists, for African and Hispanic populations as well as other minority groups. In this review, we identify gaps in the knowledge base, highlight the association

2018 Dermatology PubMed

19. Author Correction to: Psoriasis in Skin of Color: Insights into the Epidemiology, Clinical Presentation, Genetics, Quality-of-Life Impact, and Treatment of Psoriasis in Non-White Racial/Ethnic Groups. (Full text)

Author Correction to: Psoriasis in Skin of Color: Insights into the Epidemiology, Clinical Presentation, Genetics, Quality-of-Life Impact, and Treatment of Psoriasis in Non-White Racial/Ethnic Groups. In the original publication, section 5, paragraph 1 was incorrectly published.

2018 American journal of clinical dermatology PubMed

20. A 13-year-old girl with a linear dark patch on her forehead: A case of scleroderma en coup de sabre in a child with skin of color presenting with a bruise-like appearance (Full text)

A 13-year-old girl with a linear dark patch on her forehead: A case of scleroderma en coup de sabre in a child with skin of color presenting with a bruise-like appearance 29984268 2019 02 26 2352-5126 4 5 2018 Jun JAAD case reports JAAD Case Rep A 13-year-old girl with a linear dark patch on her forehead: A case of scleroderma en coup de sabre in a child with skin of color presenting with a bruise-like appearance. 418-420 10.1016/j.jdcr.2017.08.018 Siddiqui Fariha F University of Central

2018 JAAD Case Reports PubMed

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