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1.
Curr Med Imaging ; 20: e15734056313837, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39039669

RESUMO

INTRODUCTION: This study introduces SkinLiTE, a lightweight supervised contrastive learning model tailored to enhance the detection and typification of skin lesions in dermoscopic images. The core of SkinLiTE lies in its unique integration of supervised and contrastive learning approaches, which leverages labeled data to learn generalizable representations. This approach is particularly adept at handling the challenge of complexities and imbalances inherent in skin lesion datasets. METHODS: The methodology encompasses a two-phase learning process. In the first phase, SkinLiTE utilizes an encoder network and a projection head to transform and project dermoscopic images into a feature space where contrastive loss is applied, focusing on minimizing intra-class variations while maximizing inter-class differences. The second phase freezes the encoder's weights, leveraging the learned representations for classification through a series of dense and dropout layers. The model was evaluated using three datasets from Skin Cancer ISIC 2019-2020, covering a wide range of skin conditions. RESULTS: SkinLiTE demonstrated superior performance across various metrics, including accuracy, AUC, and F1 scores, particularly when compared with traditional supervised learning models. Notably, SkinLiTE achieved an accuracy of 0.9087 using AugMix augmentation for binary classification of skin lesions. It also showed comparable results with the state-of-the-art approaches of ISIC challenge without relying on external data, underscoring its efficacy and efficiency. The results highlight the potential of SkinLiTE as a significant step forward in the field of dermatological AI, offering a robust, efficient, and accurate tool for skin lesion detection and classification. Its lightweight architecture and ability to handle imbalanced datasets make it particularly suited for integration into Internet of Medical Things environments, paving the way for enhanced remote patient monitoring and diagnostic capabilities. CONCLUSION: This research contributes to the evolving landscape of AI in healthcare, demonstrating the impact of innovative learning methodologies in medical image analysis.


Assuntos
Dermoscopia , Neoplasias Cutâneas , Aprendizado de Máquina Supervisionado , Humanos , Dermoscopia/métodos , Neoplasias Cutâneas/diagnóstico por imagem , Interpretação de Imagem Assistida por Computador/métodos , Pele/diagnóstico por imagem
2.
J Cosmet Dermatol ; 23(10): 3128-3132, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38831604

RESUMO

INTRODUCTION: Seborrheic dermatitis (SD) poses significant treatment challenges due to its chronic nature and the side effects associated with long-term use of conventional therapies like topical corticosteroids. In the search for alternative treatments, exosomes, particularly those derived from rose stem cells (RSCEs), offer a promising avenue due to their potential in managing chronic skin conditions. OBJECTIVE: This case report examines the efficacy of a topical moisturizer containing RSCEs in treating a patient with refractory SD, aiming to provide an alternative treatment pathway. MATERIALS AND METHODS: A 40-year-old male with a long-standing history of SD, unresponsive to traditional treatments, underwent a novel treatment regimen. This regimen included an initial topical application of 2.5 mL of RSCEs followed by a maintenance phase involving the application of a RSCE-containing moisturizer. Clinical outcomes were assessed through the Patient's Global Assessment (PGA) and Investigator's Global Assessment (IGA) scores, along with evaluations of scaling and erythema. RESULTS: Remarkable clinical improvement was noted as early as 1-day post-treatment, with significant reductions in redness, scaling, and itching. The patient experienced sustained relief throughout the 6-month follow-up, with a recurrence in the sixth month that was less severe than previous flare-ups. This demonstrated not only the efficacy of RSCEs in symptom management but also their potential in extending remission periods. CONCLUSION: The chronic management of SD can benefit from innovative treatments like the RSCE-containing moisturizer, as shown in this case report. While the observed outcomes are promising, indicating substantial improvements in skin condition and symptom management, larger controlled studies are necessary to validate the therapeutic potential of exosome-containing moisturizers fully. This case underscores the need for alternative therapies in SD treatment, highlighting the role of exosomes as a viable option.


Assuntos
Dermatite Seborreica , Exossomos , Humanos , Masculino , Adulto , Dermatite Seborreica/tratamento farmacológico , Dermatite Seborreica/terapia , Dermatite Seborreica/diagnóstico , Administração Cutânea , Creme para a Pele/administração & dosagem , Seguimentos , Resultado do Tratamento , Células-Tronco
4.
Adv Exp Med Biol ; 1447: 169-190, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38724793

RESUMO

Atopic dermatitis is a chronic dermatologic condition requiring extended treatment times with topical application of medications. While atopic dermatitis treatments can be highly effective when used as directed, oftentimes patients do not respond as expected, raising concern for nonadherence versus nonresponse. This chapter aims to describe what is currently known about adherence in atopic dermatitis and to discuss strategies to improve adherence in order to improve treatment outcomes. Whether intentional or unintentional, nonadherence to treatment can limit patient outcomes of this disease for a variety of reasons. These include frustration with medication efficacy, inconvenience, and fear of side effects. Other factors include forgetfulness, financial burden of treatment, lack of trust in the physician, dislike of prescribed medication, or lack of understanding of disease or treatment. Several interventions have been studied with the aim of improving adherence in atopic dermatitis-such as educational workshops for patients and caregivers, earlier follow-up visits, and text messages reminders-however, these are often limited by sample size and power. Further research is needed to study both specific patterns of nonadherence in atopic dermatitis, as well as methods to improve them.


Assuntos
Dermatite Atópica , Adesão à Medicação , Humanos , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/psicologia , Fármacos Dermatológicos/uso terapêutico , Fármacos Dermatológicos/efeitos adversos , Educação de Pacientes como Assunto , Resultado do Tratamento
5.
J Cosmet Dermatol ; 23(5): 1884-1890, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38444348

RESUMO

BACKGROUND: There is a growing trend of individuals wearing cosmetics while participating in physical activities. Nonetheless, there remains a need for further understanding regarding the effects of makeup on the facial epidermis during exercise, given the existing knowledge gaps. PURPOSE: This study aimed to evaluate the effects of a cosmetic foundation cream on skin conditions during physical activity. METHODS: Forty-three healthy college students, 20 males (26.3 ± 1.5 years) and 23 females (23.1 ± 1.0 years), were enrolled in this study. Foundation cream was applied to participants on half of the face in two different areas (MT: makeup T zone and MU: makeup U zone). The other half of the face served as internal control (T: non-makeup T zone and U: non-makeup U zones). Skin levels of moisture, elasticity, pore, sebum, and oil were measured using a skin analysis device (Aramhuvis, Gyeonggi, Republic of Korea) before and after a 20-min treadmill exercise. Paired t-test and independent t-test were performed for skin condition measurements at pre- and postexercise. RESULTS: The skin moisture levels in both the T and MT significantly increased after exercise (p < 0.05) (pre-T: 24.5 ± 1.3, post-T: 38.5 ± 3.5 and pre-MT: 18.7 ± 0.7, post-MT: 40.4 ± 4.8). Elasticity also significantly improved in both the T and MT (p < 0.05) (pre-T: 25.6 ± 1.3, post-T: 41.5 ± 3.5 and pre-MT: 20.0 ± 0.9, post-MT: 41.7 ± 3.7). The size of the pores in the T zone observed a significant increase after exercise (p < 0.05) (pre-T: 41.7 ± 2.1, post-T: 47.8 ± 2.4). The sebum levels in the T zone exhibited a reduction following physical activity, whereas there was a notable increase in sebum levels in the makeup zones (p < 0.05) (pre-MT: 2.4 ± 0.7, post-MT:4.2 ± 0.8 and pre MU 1.8 ± 0.34, post MU 4.9 ± 0.9). The oil level was increased in the non-makeup zones (pre-T: 6.1 ± 1.4, post-T: 11.8 ± 2.0 and pre-U: 7.3 ± 1.5, post-U: 11.9 ± 1.9; p < 0.05) and decreased in the makeup zones (pre-MT: 13.3 ± 1.9, post-MT: 7.4 ± 2.3 and pre-MU: 22.1 ± 2.4, post-MU: 3.2 ± 1.0; p < 0.05). CONCLUSIONS: The findings suggest that using foundation cream during aerobic exercise can reduce skin oil, causing dryness. Additionally, makeup can clog pores and increase sebum production. Therefore, wearing makeup may not be recommended for people with dry skin conditions based on the results of the current study. This research offers important insights to the public, encouraging them to consider the possible consequences of using makeup while exercising.


Assuntos
Exercício Físico , Creme para a Pele , Humanos , Feminino , Masculino , Adulto Jovem , Adulto , Exercício Físico/fisiologia , Creme para a Pele/administração & dosagem , Creme para a Pele/química , Sebo/metabolismo , Elasticidade/efeitos dos fármacos , Face , Cosméticos/administração & dosagem , Cosméticos/química , Teste de Esforço , Voluntários Saudáveis , Pele/efeitos dos fármacos , Pele/metabolismo , Pele/química , Epiderme/química , Epiderme/efeitos dos fármacos , Epiderme/fisiologia , Epiderme/metabolismo
6.
Cureus ; 16(1): e51743, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38318580

RESUMO

Bilateral lower extremity inflammatory lymphedema (BLEIL) is a novel condition characterized by confluent erythema and painful edema prominent to the dorsum of the feet and ankles bilaterally following prolonged standing and marching, occurring most often in military recruits. Prolonged standing during the initial week of basic training is thought to cause venous congestion and subsequent inflammatory vasculitis. This condition may be misdiagnosed as bilateral cellulitis, prompting the initiation of unnecessary antibiotic therapy. Increased education and recognition of this new clinical entity would lead to the initiation of appropriate therapy and earlier symptom resolution and, thus, an earlier return to military training. Herein, we describe a small case series of Marine Corps recruit members undergoing their first week of basic training (i.e., "processing week") who developed bilateral lower extremity edema, erythema, and pain localized to the dorsum of the feet and the medial and lateral aspects of the ankles consistent with the diagnosis of BLEIL but were initially diagnosed with bilateral lower extremity cellulitis and received intravenous antimicrobial therapy. With prompt initiation of venous decongestive therapy with leg elevation, both patients had rapid symptom resolution and returned to basic training without any future episodes of symptoms. These cases add to the paucity of data on this clinical entity, illustrate the symptoms and demographics of BLEIL, and describe the importance of recognition and initiation of appropriate therapy.

7.
Skin Res Technol ; 30(2): e13565, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38279539

RESUMO

BACKGROUND: The morphology and content of stratum corneum (SC) cells provide information on the physiological condition of the skin. Although the morphological and biochemical properties of the SC are known, no method is available to fully access and interpret this information. This study aimed to develop a method to comprehensively decode the physiological information of the skin, based on the SC. Therefore, we established a novel image analysis technique based on artificial intelligence (AI) and multivariate analysis to predict skin conditions. MATERIALS AND METHODS: SC samples were collected from participants, imaged, and annotated. Nine biomarkers were measured in the samples using enzyme-linked immunosorbent assay. The data were then used to teach machine-learning models to recognize individual SC cell regions and estimate the levels of the nine biomarkers from the images. Skin physiological indicators (e.g., skin barrier function, facial analysis, and questionnaires) were measured or obtained from the participants. Multivariate analysis, including biomarker levels ​​and structural parameters of the SC as variables, was used to estimate these physiological indicators. RESULTS: We established two machine-learning models. The accuracy of recognition was assessed according to the average intersection over union (0.613), precision (0.953), recall (0.640), and F-value (0.766). The predicted biomarker levels significantly correlated with the measured levels. Skin physiological indicators and questionnaire answers were predicted with strong correlations and correct answer rates. CONCLUSION: Various physiological skin conditions can be predicted from images of the SC using AI models and multivariate analysis. Our method is expected to be useful for dermatological treatment optimization.


Assuntos
Inteligência Artificial , Pele , Humanos , Pele/diagnóstico por imagem , Epiderme , Aprendizado de Máquina , Biomarcadores
8.
Int J Pharm ; 653: 123825, 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38253270

RESUMO

The targeted choice of the emollient of a cream determines its physicochemical properties and clinical effectiveness. This work researched the effects of emollient properties on the final characteristics and potential performance of oil-in-water dermatological creams. Seven emollients with different chemical characteristics and structures (alkane, triglyceride, ether, silicone, vegetable oils, and mineral oil) were tested in a model formulation. Early stability, pH, droplet size distribution, rheology, tackiness, adhesivity, spreadability, tribology, and release profile of a lipophilic substance model (in Franz cells, through a synthetic membrane, for six hours) were assessed. The creams had acid epicutaneous pH and a "shear-thinning" "solid-like" viscoelastic behavior. Among the seven emollients' properties, polarity, density, and viscosity were the most influential. Droplet parameters were the most impacted, pH and release were moderately affected, and the textural properties were lowly to moderately impacted. The emollient substitution in the model formulation affected the experimental parameters differently, allowing formulation optimization and tailoring its potential therapeutic performance regarding drug release, coadjutant effects, and dwell time on the skin. By looking at the creams' characteristics, it was possible to select the best-suited emollients for releasing a lipophilic drug, applying on painful skin, and formulation in wash-off products or leave-on protective barrier creams.


Assuntos
Emolientes , Óleo Mineral , Emolientes/química , Óleos de Plantas/química , Pele , Reologia
9.
Int J Environ Health Res ; 34(2): 719-731, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36652575

RESUMO

Health agencies recommend using hand sanitisers as protection against the coronavirus. Thus far, the emphasis on hand sanitiser studies is limited to an analysis of disinfectant content only. This study aims to provide an extended analysis of 60 off-the-shelf alcohol-based hand sanitisers by using gas chromatography to report on alcohol content and the presence of impurities, a recombinant yeast estrogen screen to assess estrogenic activity, and an investigation into labelling compliance with the South African National Standard. Fifty hand sanitisers had an alcohol content of ≥60% v/v alcohol; however, most contained skin irritants and substances that could harm human and environmental health. Estrogenic activity was detected in 29 hand sanitisers and none of the products complied with all the labelling requirements. Since off-the-shelf hand sanitisers in South Africa are not regulated and monitored, evidence-based public awareness programmes on hand sanitiser quality and safety should become a priority.


Assuntos
COVID-19 , Higienizadores de Mão , Humanos , COVID-19/prevenção & controle , África do Sul , Pandemias/prevenção & controle , Higienizadores de Mão/química , Etanol/química
11.
Cureus ; 15(9): e44560, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37789992

RESUMO

Atopic dermatitis is a complex, recurrent, chronic inflammatory skin condition. It frequently begins to manifest in early childhood and may last throughout adulthood. The need for clinical practice guidelines that are based on evidence is critical for efficient and secure care. Little is known about how primary care providers (PCPs) should handle pediatric and adult atopic dermatitis cases and whether they should follow national recommendations. Our systemic review aimed to examine management strategies for treating adult and pediatric (family) atopic dermatitis, including topical calcineurin inhibitors (TCIs), topical corticosteroids (TCS), skin emollients, oral antihistamines, and diet. Data sources were PubMed (MEDLINE) and Embase. Our review investigated English-language articles from 2014 to 2023 that studied the management of adult and children atopic dermatitis. Overall, there were 15 articles included. Surveys and analyses of national databases were the most widely used methods (n=7). The use of TCS by PCPs was common, but they also overprescribed nonsedating antihistamines, favored low-potency drugs, and avoided TCIs. Most studies relied on healthcare personnel reporting their typical behaviors rather than looking at specific patient encounters and it is considered a limitation. Finally, there are gaps in knowledge and management of critical topics such as prescribing TCIs and understanding the safety profiles of TCS, when it comes to treating adult and pediatric atopic dermatitis. Future research in this area is urgently needed because the current systemic assessment is mostly restricted to small studies that assess prescribing behaviors with scant information describing nonmedication management.

12.
J Vet Diagn Invest ; 35(6): 761-765, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37705293

RESUMO

We describe here a novel peeling skin condition (PSC) in 2 neonatal Pacific walruses (Odobenus rosmarus subsp. divergens). Macroscopically, calves had various degrees of peeling skin exacerbated by mechanical trauma. Lesions occurred in areas subject to friction: ventrum, fore- and hindflippers, and associated joints. Histopathologic features included pseudocarcinomatous epithelial hyperplasia with orthokeratotic hyperkeratosis. Bacterial cocci were present within the stratum corneum. A few intraepidermal clefts were present. Inflammation, epidermolysis, and vasculopathies were not observed. PCR assays were negative for vesivirus and for Staphylococcus aureus exfoliative and toxic shock syndrome toxins. Tissue samples were cultured and bacteria isolated and identified by MALDI-TOF MS as Carnobacterium maltaromaticum, Psychrobacter phenylpyruvicus, Globicatella sanguinis, Streptococcus phocae, Pseudomonas spp., Rahnella aquatilis, and Escherichia coli. Given the young age of the calves and their clinical presentation, congenital ichthyosis was suspected. No genetic differences were detected for sequenced portions of keratin genes (keratin gene K10) between diseased and normal walrus skin. This rare PSC in neonatal Pacific walruses is recognized as novel by indigenous Alaskan marine mammal hunters of the Bering Strait region. A comprehensive diagnostic work-up of future case materials is needed to characterize the underlying biochemical defect(s).


Assuntos
Infecções Estafilocócicas , Morsas , Animais , Alaska , Infecções Estafilocócicas/veterinária , Queratinas
13.
Dis Aquat Organ ; 155: 125-140, 2023 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-37706643

RESUMO

Improving our understanding of the effects of satellite tags on large whales is a critical step in ongoing tag development to minimise potential health effects whilst addressing important research questions that enhance conservation management policy. In 2014, satellite tags were deployed on 9 female southern right whales Eubalaena australis accompanied by a calf off Australia. Photo-identification resights (n = 48) of 4 photo-identified individuals were recorded 1 to 2894 d (1-8 yr) post-tagging. Short-term (<22 d) effects observed included localised and regional swelling, depression at the tag site, blubber extrusion, skin loss and pigmentation colour change. Broad swelling observable from lateral but not aerial imagery (~1.2 m diameter or ~9% of body length) and depression at the tag site persisted up to 1446 d post-tagging for 1 individual, indicating a persistent foreign-body response or infection. Two tagged individuals returned 4 yr post-tagging in 2018 with a calf, and the medium-term effects were evaluated by comparing body condition of tagged whales with non-tagged whales. These females calved in a typical 4 yr interval, suggesting no apparent immediate impact of tagging on reproduction for these individuals, but longer-term monitoring is needed. There was no observable difference in the body condition between the 2 tagged and non-tagged females. Ongoing monitoring post-tagging is required to build on the sample size and statistical power. We demonstrate the value of long-term monitoring programmes and a collaborative approach for evaluating effects from satellite-tagging cetaceans to support species management.


Assuntos
Tecido Adiposo , Baleias , Feminino , Animais , Austrália , Pigmentação , Reprodução
14.
AORN J ; 118(3): 149-156, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37624055

RESUMO

Hospital-acquired pressure injuries create a tremendous cost to health care organizations and negatively affect quality and patient safety. Surgical patients are at an increased risk for skin injury, particularly a pressure injury, because of a lack of sensation and immobility during a procedure. An interprofessional team at our facility identified factors that place surgical patients at risk for skin injury. We developed a risk assessment protocol in March 2021 using the Six Sigma DMAIC (define, measure, analyze, improve, and control) method. After data review and analysis, we identified age of 65 years or older, existence of a skin condition, and procedural duration greater than four hours as significant predictors for postoperative skin injury. Our findings reinforce the benefit of using an appropriate risk assessment protocol that alerts the perioperative team members to at-risk patients.


Assuntos
Segurança do Paciente , Úlcera por Pressão , Humanos , Idoso , Período Pós-Operatório , Úlcera por Pressão/prevenção & controle , Medição de Risco
15.
J Cutan Med Surg ; 27(4): NP1-NP36, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37401812

RESUMO

BACKGROUND: Sex and gender have increasingly been recognized as significant risk factors for many diseases, including dermatological conditions. Historically, sex and gender have often been grouped together as a single risk factor in the scientific literature. However, both may have a distinct impact on disease incidence, prevalence, clinical presentation, severity, therapeutic response, and associated psychological distress. OBJECTIVES AND PROJECT DESCRIPTION: The mechanisms that underlie differences in skin diseases between males, females, men, and women remain largely unknown. The specific objectives of this review paper are:To highlight the biological differences between males and females (sex), as well as the sociocultural differences between men and women (gender) and how they impact the integumentary system.To perform a literature review to identify important sex- and gender-related epidemiological and clinical differences for various skin conditions belonging to a range of disease categories and to discuss possible biological and sociocultural factors that could explain the observed differences.To discuss dermatological skin conditions and gender-affirming treatments within the transgender community, a population of individuals who have a gender identity which is different than the gender identity they were assigned at birth. FUTURE IMPACT: With the rising number of individuals that identify as non-binary or transgender within our increasingly diverse communities, it is imperative to recognize gender identity, gender, and sex as distinct entities. By doing so, clinicians will be able to better risk-stratify their patients and select treatments that are most aligned with their values. To our knowledge, very few studies have separated sex and gender as two distinct risk factors within the dermatology literature. Our article also has the potential to help guide future prevention strategies that are patient-tailored rather than using a universal approach.


Assuntos
Dermatologia , Pessoas Transgênero , Recém-Nascido , Humanos , Masculino , Feminino , Identidade de Gênero , Pessoas Transgênero/psicologia , Fatores de Risco
16.
J Surg Case Rep ; 2023(6): rjad291, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37337540

RESUMO

Extramammary Paget disease (EMPD) is an uncommon slow-growing skin adenocarcinoma originating in the anogenital region and axilla outside the mammary glands, often in regions with apocrine glands. The most common location is the vulva, followed by perineal, perianal, scrotal and penile skin. Here, we report a case of a 63-year-old male with EMPD in the perianal region. He reported 4 years of pain associated with an increasing region of skin irritation and bleeding on defecation that did not improve with topical agents. A biopsy sample revealed poorly differentiated carcinoma consistent with adenocarcinoma and associated with Paget disease. Workup was done. The patient tolerated local excision of the region well with no complications. A rare disease, EMPT, is challenging to diagnose and manage. Histopathological findings can, however, differentiate it from a wide array of similar skin conditions. Thorough investigations should be undertaken before initiating treatment to ensure the best outcomes.

17.
Cureus ; 15(4): e38047, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37228565

RESUMO

Hidradenitis suppurativa (HS) is a chronic and painful skin condition that is difficult to treat. Patients commonly navigate YouTube's platform for insight into different treatment options; thus, we analyzed the content and quality of the top 100 HS videos to assess which treatment options were most favored. Our study indicated a growing number of informational videos on the platform over 10 years, with the majority of the content from the United States. Surgical videos had higher view counts than nonsurgical ones, even though the level of engagement measured by likes and comments was similar between the two. There were no differences in the presented tone between the two categories. Overall, YouTube videos have a moderate quality with no serious shortcomings based on a previously validated DISCERN instrument score. Healthcare professionals treating HS patients should continue to direct patients to evidenced-based sources of reliable information on their condition.

18.
Healthcare (Basel) ; 10(12)2022 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-36553920

RESUMO

Face recognition segmentation is very important for symptom detection, especially in the case of complex image backgrounds or noise. The complexity of the photo background, the clarity of the facial expressions, or the interference of other people's faces can increase the difficulty of detection. Therefore, in this paper, we have proposed a method to combine mask region-based convolutional neural networks (Mask R-CNN) with you only look once version 4 (YOLOv4) to identify facial symptoms by this new method. We use the face image dataset from the public image databases DermNet and Freepic as the training source for the model. Face segmentation was first applied with Mask R-CNN. Then the images were imported into ResNet-101, and the facial features were fused with region of interest (RoI) in the feature pyramid networks (FPN) structures. After removing the non-face features and noise, the face region has been accurately obtained. Next, the recognized face area and RoI data were used to identify facial symptoms (acne, freckle, and wrinkles) with YOLOv4. Finally, we use Mask R-CNN, and you only look once version 3 (YOLOv3) and YOLOv4 are matched to perform the performance analysis. Although, the facial images with symptoms are relatively few. We still use a limited amount of data to train the model. The experimental results show that our proposed method still achieves 57.73%, 60.38%, and 59.75% of mean average precision (mAP) for different amounts of data. Compared with other methods, the mAP was more than about 3%. Consequently, using the method proposed in this paper, facial symptoms can be effectively and accurately identified.

19.
Clin Pract ; 12(6): 876-884, 2022 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-36412671

RESUMO

Background: Vitiligo is a common acquired hypopigmentation skin condition defined by an idiopathic, gradual, and restricted loss of melanin pigment from otherwise healthy-looking skin. The present study aims to evaluate the knowledge and perceptions of and attitudes toward vitiligo among the general population of Jazan Province, Saudi Arabia. Methods: An observational cross-sectional survey targeting adults of the Jazan region was conducted in 2022. The data were collected using an electronic questionnaire distributed through social media in the region. Statistical analysis was performed using the SPSS computer program. Knowledge and attitude scores were computed. Results: Most of the respondents (83.7%) had an adequate knowledge level of vitiligo, and almost half of the respondents (46.8%) had a positive attitude toward the disease. The majority of the respondents (84.5%) knew that vitiligo is not contagious. However, the majority of the participants (78.6%) did not know that vitiligo is an autoimmune disease. Most of the respondents (93.1%) do not avoid shaking hands with a vitiligo patient to prevent infection, accept food prepared by a vitiligo patient (69.4%), accept sharing a plate with a vitiligo patient (73.6%), and accept to be helped by a vitiligo patient (86.7%). However, about half of the participants (50.4%) refused to marry a person diagnosed with vitiligo. The knowledge of vitiligo in the study population was not correlated with any of the demographic characters, such as age, gender, education, or occupation (p > 0.05). The most important factors associated with good attitudes were male gender (COR = 1.92; 95% CI: 1.92−2.84; p = 0.001) and being aged over 50 years (COR = 3.06; 95% CI: 1.53−6.13; p = 0.002). Conclusions: The population in Jazan had a good level of knowledge of vitiligo and a positive attitude toward patients with vitiligo. Social media is the source of information for vitiligo for the majority of the study population. The good attitude toward patients with vitiligo was more prevalent in males and older people. More efforts are needed to improve the knowledge of and attitudes toward vitiligo.

20.
Cureus ; 14(8): e27622, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36072203

RESUMO

Facial seborrheic dermatitis (SD) is a chronic inflammatory skin condition that can affect the quality of life with frequent recurrences. There is no medication as yet to cure this disease completely. There are four general categories of agents that are used to treat SD: antifungal agents, keratolytics, corticosteroids, and lastly calcineurin inhibitors. Topical therapies are the mainstream line of treatment to be used for this skin condition. The objective of this article is to critically review the published data in the literature on the use of topical pimecrolimus 1% topical cream as an option for treating facial SD. The final purpose of this review is to answer two questions: whether pimecrolimus topical cream is effective for the treatment of SD compared to the conventional current treatments and how safe is this treatment.  The PubMed, Clinicaltrials.gov, MEDLINE + Embase, and Cochrane library databases were searched for original randomized clinical trials (RCTs) evaluating pimecrolimus 1% topical cream and comparing it with other topical treatments for SD. A systematic review and meta-analysis were then conducted on the selected studies by grading the evidence and qualitative comparison of results among and within studies. A total of five studies were included in the review; however, only four were eligible for inclusion in the meta-analysis, in which pimecrolimus was compared with other treatments for the management of facial SD. Pimecrolimus was found to be an effective topical treatment for facial SD, as it showed considerable desirable control of the symptoms in patients with facial SD clinically, in addition to a lower recurrence or relapsing rates; however, it had more side effects compared to other topical treatments, but the side effects were mild and tolerable.

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