Ultraviolet radiation protection factors of livestock shade cloths for free-range pigs.

BACKGROUND: Protection from solar ultraviolet radiation (UVR) is paramount in light-skinned pig breeds such as Yorkshire or Landrace to avoid sunburn. OBJECTIVES: Determination of the UVR exposure of a pig and the sun protection abilities of shade cloths with different shade rates. ANIMALS: Life-sized plastic model of a Landrace pig. MATERIALS AND METHODS: The model was equipped with 20 UVR meters at various anatomical positions that recorded the erythemal effective solar irradiance. A turntable enabled irradiation from different directions. Solar irradiance was measured in direct sunlight as well as under three shade cloths with different shade rates (50%, 75% and 90%) and a camouflage net. The sun protection factors (SPF) were determined as the ratio of unshaded-to-shaded measurements at the same solar elevation. The exposure ratio to ambient (ERTA) was calculated for each body site with respect to ambient irradiance. It allows determination of when pigs are at risk of sunburn and protection is needed. RESULTS: The calculated ERTA values show that some body parts may receive higher values than ambient UVR. Measurements showed that the SPF of shade cloths depends on textile denseness. Selected shade cloths reached values of 3.5 (shade rate 50%), 4.2 (75%) and 5.8 (90%). Protection by the camouflage net was poor. The highest SPF was gained on body sides where ERTA was highest. CONCLUSIONS AND CLINICAL RELEVANCE: Shade cloths can protect all body sites effectively and vulnerable sites in particular. The results of our study enable an estimation of when pigs are at risk of sunburn and provide quantitative metrics for sun protection. This allows effective prevention of UVR-caused skin damage and secondary disorders.

How Does Illness Perception Affect the Quality of Life and Sun Protection Behaviors of Rosacea Patients?

BACKGROUND: Previous studies have noted the link between rosacea severity and quality of life, but there is limited understanding of how disease perception impacts these aspects. Additionally, sun exposure is identified as a common trigger for rosacea flare-ups, emphasizing the importance of sun protection practices in managing the condition. This cross-sectional study aims to fill the gap in the literature by investigating the relationship between clinical severity, disease perception, quality of life, and sun protection behaviors in rosacea patients. METHODS: Questionnaires assessing the quality of life, illness perception, sun protection behaviors, sun protection decisional balance, and its potential predictors were completed by 120 rosacea patients and 120 controls. RESULTS: Patients exhibited a higher prevalence of sun protection behaviors than the control group (24.15 ± 5.76 vs. 17.63 ± 5.56, p < 0.001) and demonstrated greater determination in adhering to sun protection practices (13.43 ± 2.37 vs. 9.40 ± 3.09, p < 0.001). Hierarchical linear regression analyses showed that quality of life was related to clinical severity, illness perception (consequences, illness coherence, emotional representations), causal attribution (risk factors, immunity), and sun protection decisional balance variables (R2 = 0.45, F = 7.39, p < 0.001). Also, the perceived pros and cons of sun protection behaviors were predicted by illness perception (treatment control), causal attribution (risk factors, immunity, chance/accident), and quality of life variables (R2 = 0.24, F = 2.59, p = 0.004). CONCLUSIONS: Providing more information to rosacea patients can improve their disease perception and quality of life, increasing adherence to sun protection behaviors.

Examination of a Novel Intervention Strategy to Promote Sunscreen Use: A Feasibility Study.

Objective: Skin cancer remains prevalent despite numerous studies reporting the benefits of sunscreen for reducing risk of skin cancer and sunburn. While the risks of not wearing sunscreen are well-documented, there are no effective interventions to promote sunscreen use across populations, and existing interventions have modest outcomes. The current study investigated a novel intervention to increase sunscreen use. Methods: Participants (n=15) first reported their baseline daily sunscreen use then completed sunscreen sampling and selection procedures that included testing sunscreen samples, choosing preferred sunscreens to take home and sample further, and ultimately selecting a preferred sunscreen to use for the remainder of the study. Participants then self-reported their daily sunscreen use for approximately two weeks (+/-5 days). Results: All participants increased sunscreen use following intervention. Limitations: Data were collected between January and May; individuals may increase sunscreen use as temperatures increase (and time outdoors increases). Additionally, the current study relied on self-report of sunscreen use primarily. Conclusion: Our findings suggest that sampling and election procedures may be an effective strategy to promote sunscreen use. The findings of this study may inform future research examining sunscreen intervention strategies.

Inula salicina L.: Insights into Its Polyphenolic Constituents and Biological Activity.

In this study, UHPLC-HRMS analysis of the defatted methanol extract obtained from Inula salicina L. led to the identification of 58 compounds-hydroxycinnamic and hydroxybenzoic acids and their glycosides, acylquinic and caffeoylhexaric acids, and flavonoids and their glycosides. In addition, a new natural compound, N-(8-methylnepetin)-3-hydroxypiperidin-2-one was isolated and its structure was elucidated by NMR spectroscopy. The presence of a flavoalkaloid in genus Inula is described now for the first time. Chlorogenic acid was the main compound followed by 3,5-, 1,5- and 4,5-dicaffeoylquinic acids. The methanol extract was studied for its antioxidant potential by DPPH, ABTS, and FRAP assays and sun protective properties. In addition, a study was conducted to assess the effectiveness of the tested extract in inhibiting biofilm formation by Gram-positive and Gram-negative strains. Results from crystal violet tests revealed a notable decrease in biofilm mass due to the extract. The anti-biofilm efficacy was confirmed through the observation of the biofilm viability by live/dead staining. The obtained results showed that this plant extract could be used in the development of cosmetic products with antibacterial and sun protection properties.

Overview of proficiency testing results for the in vivo determination of sun protection factor.

A sunscreen product is allowed to be marketed if a protection is provided against ultraviolets (UV) including UVA rays and UVB rays expressed by the sun protection factor (SPF). UVB is radiation that is in the region of the ultraviolet spectrum which extends from about 290 to 320 nm in wavelength and that is primarily responsible for sunburn, ageing of the skin, and the development of skin cancer. Thus, since April 2009, the Bureau Interprofessionnel d'Etudes Analytiques (BIPEA) set up a proficiency testing scheme (PTS) for the determination of SPF in vivo of sunscreen products according to ISO 24444 standard [Cosmetics - Sun protection test methods - in vivo determination of the sun protection factor (SPF)] to evaluate the analytical performances of laboratories on these analyses. This PTS gathers twenty-six laboratories around the world with one trial a year. For each test, the statistical treatment of the data is performed according to ISO 13528 standard [Statistical methods for use in proficiency testing by interlaboratory comparison]. The assigned and tolerance values are calculated from the participants' data and the performances of the laboratories are evaluated individually and collectively according to ISO 17043 standard [Conformity assessment - General requirements for proficiency testing]. This paper presents the design of the PT program, its development, and an attentive analysis of laboratories results, which highlight the global performances obtained by laboratories on this type of analysis. The evaluation of the results shows, in fact, a relatively constant dispersion of data since the implementation of the PT program (variability between 10% and 50%).

Un produit solaire peut être commercialisé s'il offre une protection contre les ultraviolets (UV), y compris les rayons UVA et UVB, exprimée par le facteur de protection solaire (FPS). Les UVB sont des rayonnements qui se situent dans la région du spectre ultraviolet dont la longueur d'onde s'étend d'environ 290 à 320 nm et qui sont principalement responsables des coups de soleil, du vieillissement de la peau et du développement du cancer de la peau. Ainsi, depuis avril 2009, le Bureau Interprofessionnel d'Etudes Analytiques (BIPEA) a mis en place un système d'essais d'aptitude pour la détermination du FPS in vivo des produits de protection solaire selon la norme ISO 24444 [Cosmétiques ­ Méthodes d'essai de protection solaire ­ Détermination in vivo du facteur de protection solaire (FPS)] afin d'évaluer les performances analytiques des laboratoires sur ces analyses. Ce programme d'essais d'aptitude regroupe vingt­six laboratoires dans le monde à raison d'un essai par an. Pour chaque essai, le traitement statistique des données est effectué selon la norme ISO 13528 [Méthodes statistiques utilisées dans les essais d'aptitude par comparaison interlaboratoires]. Les valeurs assignées et les valeurs de tolérance sont calculées à partir des données des participants et les performances des laboratoires sont évaluées individuellement et collectivement conformément à la norme ISO 17043 [Évaluation de la conformité ­ Exigences générales concernant la compétence des organisateurs d'essais d'aptitude]. Cet article présente la conception du programme d'essais d'aptitude, son développement, et une analyse attentive des résultats des laboratoires, qui mettent en évidence les performances globales obtenues par les laboratoires sur ce type d'analyse. L'évaluation des résultats montre en effet une dispersion des données relativement constante depuis la mise en place du programme (variabilité entre 10% et 50%).

Digital Interventions to Modify Skin Cancer Risk Behaviors in a National Sample of Young Adults: Randomized Controlled Trial.

BACKGROUND: Young adults engage in behaviors that place them at risk for skin cancer. Dissemination of digital health promotion interventions via social media is a potentially promising strategy to modify skin cancer risk behaviors by increasing UV radiation (UVR) protection and skin cancer examinations. OBJECTIVE: This study aimed to compare 3 digital interventions designed to modify UVR exposure, sun protection, and skin cancer detection behaviors among young adults at moderate to high risk of skin cancer. METHODS: This study was a hybrid type II effectiveness-implementation randomized controlled trial of 2 active interventions, a digital skin cancer risk reduction intervention (UV4.me [basic]) compared with an enhanced version (UV4.me2 [enhanced]), and an electronic pamphlet (e-pamphlet). Intervention effects were assessed over the course of a year among 1369 US young adults recruited primarily via Facebook and Instagram. Enhancements to encourage intervention engagement and behavior change included more comprehensive goal-setting activities, ongoing proactive messaging related to previously established mediators (eg, self-efficacy) of UVR exposure and protection, embedded incentives for module completion, and ongoing news and video updates. Primary outcome effects assessed via linear regression were UVR exposure and sun protection and protection habits. Secondary outcome effects assessed via logistic regression were skin self-exams, physician skin exams, sunscreen use, indoor tanning, and sunburn. RESULTS: The active interventions increased sun protection (basic: P=.02; enhanced: P<.001) and habitual sun protection (basic: P=.04; enhanced P=.01) compared with the e-pamphlet. The enhanced intervention increased sun protection more than the basic one. Each active intervention increased sunscreen use at the 3-month follow-up (basic: P=.03; enhanced: P=.01) and skin self-exam at 1 year (basic: P=.04; enhanced: P=.004), compared with the e-pamphlet. Other intervention effects and differences between the Basic and Enhanced Intervention effects were nonsignificant. CONCLUSIONS: The active interventions were effective in improving several skin cancer risk and skin cancer prevention behaviors. Compared with the basic intervention, the enhanced intervention added to the improvement in sun protection but not other behaviors. Future analyses will explore intervention engagement (eg, proportion of content reviewed). TRIAL REGISTRATION: ClinicalTrials.gov NCT03313492; http://clinicaltrials.gov/ct2/show/NCT03313492.

Participants' Experiences and Satisfaction With Sun Protection Factor (SPF) 100 Sunscreen in Actual Use Conditions.

Background and objective Exposure to sunlight's ultraviolet (UV) radiation poses various health risks, including sunburn, skin damage, and heightened skin cancer risk. Sunblock usage has surged due to widespread advertising campaigns. Individuals spending time outdoors should employ protective measures like wearing hats, applying sunblock with a high sun protection factor (SPF), covering exposed skin, and seeking shade to mitigate UV exposure's harmful effects. This study's objective is to assess participants' experiences and satisfaction with SPF 100 sunscreen in actual use conditions. Methodology This study employed a prospective, single-center design involving 100 participants aged 18 to 70 years. Eligible individuals had Fitzpatrick skin types I-III and were engaged in outdoor activities, excluding those with certain medical conditions or medication use. Each participant received sunscreen tubes (Solero SPF 100, Helix Pharma Pvt. Ltd., Karachi, Pakistan), and clinical evaluations were conducted on the day before and after and day 22 visits, with sunblock application and UV-induced erythema assessments performed. Results Our study enrolled participants with a mean age of 25.6 ± 7.1 years, ranging from 15 to 55 years, with females comprising 84% (84) of the sample. Results revealed widespread satisfaction and acceptance of SPF 100 sunscreen, without any reported adverse reactions. A significant majority expressed their willingness to purchase and recommend the sunscreen to others. Furthermore, the majority of healthcare providers expressed satisfaction with prescribing this sunscreen.  Conclusions In conclusion, SPF 100 sunscreen demonstrated excellent tolerability and acceptability among participants, suggesting its potential utility in both personal sun protection routines and clinical settings.

Patient demographic characteristics and risk factors associated with sun protection behaviours in specialist melanoma clinics.

OBJECTIVE: We investigated the association between sun protection behaviours and demographic and melanoma risk characteristics of patients attending Australian melanoma specialist clinics. This may assist in targeting and tailoring melanoma prevention patient education for people at high-risk and specific population subgroups. METHODS: A cross-sectional analysis of questionnaire data collected from participants attending the dermatology clinics at two major melanoma centres in Sydney, Australia between February 2021 and September 2023. The primary outcome was Sun Protection Habits (SPH) index (a summary score measured as habitual past month use of sunscreen, hats, sunglasses, a shirt with sleeves that covers the shoulders, limiting midday sun exposure and seeking shade, using a Likert scale). The primary analysis considered the SPH index and its component items scored as continuous. RESULTS: Data from 883 people were analysed. Factors associated with less frequent sun protection behaviours overall included male gender, no personal history of melanoma, lower perceived risk, lower calculated 10-year risk of developing melanoma, and no private health insurance. People aged >61 years reported lower use of sunscreen but higher use of hats and sleeved-shirts compared with people in the younger age group. There was no difference in overall sun protection behaviours according to family history of melanoma, country of birth or by lifetime melanoma risk among people without a personal history of melanoma. CONCLUSIONS: These findings highlight the potential for targeting high-risk individuals with less frequent use of sun protection for patient education, public health messaging and ultimately improving sun protection behaviours.

Dermatological guide for primary care physicians: full body skin checks, skin cancer detection, and patient education on self-skin checks and sun protection.

Dermatological conditions and skin cancers are common health concerns that require early detection and intervention. Primary care physicians play a crucial role in recognizing these conditions and serving as the first line of defense against skin cancers. This guide provides a systematic approach to conducting thorough skin examinations and enhancing understanding of common presentations of precancerous and cancerous lesions. We emphasize the importance of performing annual full-body skin exams to facilitate early detection and management of skin conditions, including a step-by-step, systematic protocol for conducting these exams, comprising preparing the patient, documenting findings, educating the patient, and considering biopsy or referral for suspicious lesions. Furthermore, we explore the atypical features of skin lesions that raise clinical suspicion and warrant further investigation. We describe the characteristics of common skin cancers, such as basal cell carcinoma, squamous cell carcinoma, and melanoma. We stress the importance of patient education on self-skin checks and sun protection measures. By incorporating the knowledge and skills presented in this guide, primary care physicians can confidently perform thorough full-body skin checks, identify common dermatological findings and early signs of skin cancers, and provide comprehensive care to patients. This will help ensure optimal outcomes in dermatological health.

Outdoor workers' perceptions of skin cancer prevention: a qualitative study.

OBJECTIVES: Outdoor workers are at increased risk for skin cancer and melanoma. This qualitative study aimed to explore outdoor workers' perspectives and experiences of primary (i.e. sun protection) and secondary prevention, i.e. skin self-examination (SSE) of skin cancer. METHODS: Purposive, snowball, and theoretical sampling was used to recruit outdoor workers in Kentucky and Indiana. Semi-structured interviews via telephone or videoconference of approximately 45 min were conducted with interviewer probes and questions about perceptions of cancer risk, prevention, and screening techniques conducted, perceived barriers and facilitators, and preferences for health dissemination venues. The recordings were transcribed verbatim and de-identified. Analysis involved constructivist grounded theory coding strategies. Using peer debriefing and consensus building around themes, the researcher established a codebook for all interviews to utilize within Dedoose software for systematizing and organizing data. RESULTS: Eighteen interviews were conducted. Interviewees (N = 18) ranged in age from 35 to 78 yr, with 3 females. Outdoor industries included agriculture, maintenance, and grounds maintenance. Themes derived from the data showed the underlying factors and perceptions that influence outdoor workers to conduct primary and secondary cancer prevention activities. The level of alarm attributed to disease and the level of trust in information contribute to intentions to conduct activities. The intentions and trust toward healthcare institutions and providers drive the primary or secondary prevention behaviors. Cultural and contextual factors included masculinity and self-sufficiency, familial and occupational priorities, and community ties. CONCLUSIONS: These data provide a basis for developing future communications and interventions to decrease skin cancer incidence in outdoor workers. They indicate that secondary prevention and building self-efficacy in conducting SSE should be emphasized in tandem or over primary skin cancer prevention methods in this population. Trusted local healthcare providers should primarily provide prevention information, and materials should utilize testimonials from the local community to best influence this population. Communications and training interventions are needed in this population to induce a proactive level of alarm about cancer and result in the performance of SSE.

Knowledge, Attitudes, and Practices of Sun Exposure and Sun Protection among the Population of Kazakhstan: A Cross Sectional Study.

OBJECTIVE: The aims of this study were to assess knowledge, attitudes, and practices regarding sun exposure and sun protection among the population of Kazakhstan. METHOD: A cross sectional study was conducted by administering an online questionnaire via social networking sites to residents of Kazakhstan. The questionnaire was designed to determine demographic information as well as knowledge, attitudes and practices regarding sun exposure and sun protection. RESULT: The responses of 249 participants were analysed.  Descriptive tests, bivariate analyses, and multiple linear regression were used to statistically analyse the data. The mean age of the participants was 31.7 ± 11.5 (SD) years. Most participants were of Kazakh nationality (88.7%), female (71.0 %), urban residents (93.9 %), and possessed higher education degrees (88.0 %). The level of knowledge and attitudes were found to be moderate amongst the population whilst practices were determined to be low.  Knowledge (p=0.002), attitudes (p=0.002), female gender (p=0.002), and having children educated in school about sun safety (p=0.018) were significantly associated with improved sun-protective practices. CONCLUSION: This study has demonstrated low adoption of sun protective practices in the Kazakhstan population, despite the identification of certain characteristics associated with higher rates of practice.