Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 206
Filtrar
1.
Int J Cosmet Sci ; 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39138627

RESUMO

OBJECTIVE: Prosopis juliflora, commonly known as algaroba or mesquite, was introduced and has since proliferated throughout the semi-arid region of the Caatinga biome. Various studies have documented its properties, including antimicrobial, antioxidant, and antitumor activities, attributed to the presence of diverse secondary metabolites such as alkaloids, terpenoids, tannins, and flavonoids. The objective of this study was to evaluate the antioxidant and antityrosinase activities of P. juliflora fruit extract as a multifunctional active ingredient, and to develop cosmetic formulations containing this vegetal extract for potential applications in skincare products targeting pro-ageing and skin colour homogenization properties. METHODS: The extraction process followed established protocols. Chemical characterization of the extract involved quantification of total flavonoids and phenolic compounds, along with Liquid Chromatography-Mass Spectrometry (LC-MS) analysis. In vitro antioxidant activity was assessed using different methods. Antityrosinase activity was determined by employing enzymatic assays. Cosmetic formulations containing Disodium EDTA, Phenoxyethanol (and) Ethylhexyl Glycerin, Distilled Water, Sodium Acrylates Copolymer Lecithin, Polyacrylamide (and) C13-14 Isoparaffin (and) Laureth-7, and 3.0% of the investigated plant extract were subjected to preliminary and accelerated stability tests. RESULTS: The extract demonstrated a concentration of total flavonoids (1.71 ± 0.26 µg EQ/mg) and exhibited concentrations of phenolic compounds at 0.21 ± 0.01 mg EAG/g. Metabolites such as flavonoids and saponins were annotated, as well as some of their respective glycosidic derivatives. The extract showed antioxidant potential and the ability to inhibit the oxidation cascade in both the initiation and propagation phases. Moreover, the extract exhibited noteworthy inhibition of antityrosinase activity, presenting 62.48 ± 2.09 at a concentration of 30.00 mg/mL. The formulations were stable in accelerated stability tests over a 60-day period. CONCLUSION: This research not only demonstrates scientifically by demonstrating the potential of a plant from the Caatinga biome with antioxidant and antityrosinase properties in the development of cosmetic products aimed at pro-ageing effects and skin colour harmonization, but also adds value to the P. juliflora production chain. This valorization encompasses various aspects which include environmental, social, and biodiversity responsibilities.


OBJECTIF: Prosopis juliflora, communément appelée algaroba ou mesquite, a été introduite et s'est depuis proliférée dans la région semi­aride du biome de la Caatinga. Diverses études ont documenté ses propriétés, y compris des activités antimicrobiennes, antioxydantes et antitumorales, attribuées à la présence de divers métabolites secondaires tels que les alcaloïdes, les terpénoïdes, les tanins et les flavonoïdes. L'objectif de cette étude était d'évaluer les activités antioxydantes et antityrosinases de l'extrait de fruit de P. juliflora en tant qu'ingrédient actif multifonctionnel, et de développer des formulations cosmétiques contenant cet extrait végétal pour des applications potentielles dans des produits de soins de la peau ciblant les propriétés anti­âge et d'homogénéisation de la couleur de la peau. MÉTHODES: Le processus d'extraction a suivi des protocoles établis. La caractérisation chimique de l'extrait a impliqué la quantification des flavonoïdes totaux et des composés phénoliques, ainsi qu'une analyse par chromatographie liquide­spectrométrie de masse. L'activité antioxydante in vitro a été évaluée en utilisant différentes méthodes. L'activité antityrosinase a été déterminée en utilisant des essais enzymatiques. Les formulations cosmétiques contenant du Disodium EDTA, du Phenoxyethanol (et) Ethylhexyl Glycerin, de l'Eau Distillée, du Copolymère de Sodium Acrylates Lecithin, du Polyacrylamide (et) C13­14 Isoparaffin (et) Laureth­7, et 3.0 % de l'extrait végétal investigué ont été soumises à des tests de stabilité préliminaires et accélérés. RÉSULTATS: L'extrait a montré une concentration totale de flavonoïdes (1.71 ± 0.26 µg EQ/mg) et des concentrations de composés phénoliques à 0.21 ± 0.01 mg EAG/g. Des métabolites tels que les flavonoïdes et les saponines ont été annotés, ainsi que certains de leurs dérivés glycosidiques respectifs. L'extrait a montré un potentiel antioxydant et la capacité d'inhiber la cascade d'oxydation tant dans les phases d'initiation que de propagation. De plus, l'extrait a présenté une inhibition notable de l'activité antityrosinase, avec un résultat de 62.48 ± 2.09 à une concentration de 30.00 mg/mL. Les formulations ont été stables lors des tests de stabilité accélérés sur une période de 60 jours. CONCLUSION: Cette recherche démontre scientifiquement le potentiel d'une plante du biome de la Caatinga avec des propriétés antioxydantes et antityrosinases dans le développement de produits cosmétiques visant les effets anti­âge et l'harmonisation de la couleur de la peau, tout en ajoutant de la valeur à la chaîne de production de P. juliflora. Cette valorisation englobe divers aspects incluant des responsabilités environnementales, sociales et liées à la biodiversité.

2.
Rev. Bras. Odontol. Leg. RBOL ; 11(1): 37-50, 20240601.
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1556121

RESUMO

A Harmonização Orofacial (HOF) é especialidade odontológica reconhecida pelo Conselho Federal de Odontologia (CFO) e, no reconhecimento dessa especialidade, discussões internas e externas à classe odontológica surgiram. O presente artigo tem como objetivo levantar reflexões acerca do processo judicial n° 1003948-83.2019.4.01.3400 julgado pelo Tribunal Regional Federal (Seção Judiciária do Distrito Federal - 8ª Vara Federal) referente a HOF enquanto especialidade odontológica. Inicialmente, são discutidos os documentos que norteiam o ensino dos cursos de graduação e pós-graduação em odontologia. Em seguida, faz-se uma reflexão sobre o processo de reconhecimento da HOF como especialidade odontológica. Por fim, discute-se acerca do citado processo judicial, os principais pontos elencados pelas partes envolvidas no processo e eventuais consequências do desfecho desse processo para a classe odontológica. O reconhecimento da HOF enquanto especialidade odontológica não seguiu os trâmites que outras especialidades odontológicas seguiram e gerou debates educacionais e formativos sob uma perspectiva ética e legal. Ademais, tal reconhecimento fomentou debates relacionados ao conflito dos procedimentos dessa especialidade odontológica com procedimentos de especialidades médicas. Tais conflitos chegaram ao Poder Judiciário, que interveio em favor da Odontologia, contudo, isso não impede que o cirurgião-dentista seja responsabilizado profissionalmente pela realização de procedimentos que fogem ao escopo da odontologia


Orofacial Harmonization (HOF) is dental specialty recognized by the Federal Council of Dentistry (CFO) and, in recognition of this specialty, internal and external discussions of the dental class have arisen. This article aims to raise reflections on judicial process number 1003948-83.2019.4.01.3400 judged by the Federal Regional Court (Judicial Section of the Federal District - 8th Federal Court) referring to HOF as a dental specialty. Initially, the documents that guide the teaching of undergraduate and graduate courses in dentistry are discussed. Then, a reflection is made on the recognition process of HOF as a dental specialty. Finally, it discusses the judicial process number 1003948-83.2019.4.01.3400, the main points listed by the parties involved in the process, and the possible consequences of the outcome of this process for the dental class. The recognition of HOF as a dental specialty did not follow the procedures that other dental specialties followed and generated educational and training debates from an ethical and legal perspective. Furthermore, such recognition has fostered debates related to the conflict between procedures in this dental specialty and procedures in medical specialties. Such conflicts reached the Judiciary, which intervened in favor of Dentistry, however, this does not prevent the dental surgeon from being held professionally responsible for carrying out procedures that fall outside the scope of dentistry

3.
J. pediatr. (Rio J.) ; J. pediatr. (Rio J.);100(3): 263-266, May-June 2024. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1558331

RESUMO

Abstract Objective: Perfume (Parfum) or fragrance is a natural or synthetic cosmetic ingredient added to emit a pleasant aroma or to improve the odor of a cosmetic formula. It is a mixture of substances, not revealed by the manufacturer, which may contain ingredients with allergenic potential, endocrine disruptors, and other possible harmful effects on human health. This study aims to analyze children's cosmetics labels to assess the presence of Perfume. Methods: The researchers randomly visited points of sale in Curitiba, the capital of a southern Brazilian state; in order to catalog the largest possible number of children's cosmetics items. Results: 398 children's cosmetics were analyzed and found Parfum on 295 (74.1 %) of the labels, including 90.4 and 79,1 % of the shampoos and wet wipes, respectively. Conclusion: Exposure of children's skin to fragrances can lead to local side effects such as allergies, but also to systemic effects, and the lack of knowledge of the general population and health professionals about its possible deleterious effects emphasizes the importance of changes in the regulation of cosmetics aiming to reduce the use of this ingredient.

4.
Toxicol In Vitro ; 98: 105824, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38614139

RESUMO

The TRPV1 receptor, which is known to contribute significantly to pain perception, has recently been identified as a useful tool for predicting eye stinging potential in cosmetics. In this study, HEK-293 cells with high TRPV1 expression were utilized to evaluate calcium influx related to receptor activation triggered by chemicals and cosmetic formulations. The cells were exposed to increasing concentrations of substances to cause or not some aggression to the eye, and TRPV1 activity was assessed by measuring intracellular FURA-2 AM fluorescence signal. To confirm TRPV1 channel activation, capsazepine, a capsaicin antagonist, was employed in addition to using capsaicin as a positive control. The study's results indicate that this novel model can identify compounds known to cause some aggression to the eye, such as stinging, considering a cut-off value of 60% of Ca2+ influx exposed to the lowest evaluated concentration (0.00032%). When applied to the cosmetic baby formulation, although the presented model exhibited higher sensitivity by classifying as stinging formulations that had previously undergone clinical testing and were deemed non-stinging, the assay could serve as a valuable in vitro tool for predicting human eye stinging sensation and can be used as a tier 1 in an integrated testing strategy.


Assuntos
Cálcio , Cosméticos , Canais de Cátion TRPV , Humanos , Cosméticos/toxicidade , Células HEK293 , Canais de Cátion TRPV/metabolismo , Cálcio/metabolismo , Olho/efeitos dos fármacos , Capsaicina/análogos & derivados , Capsaicina/farmacologia , Alternativas aos Testes com Animais
5.
Cureus ; 16(3): e56036, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38606221

RESUMO

This case report aims to delineate the challenges and management strategies for a patient with bilateral mutilated hands within a secondary care level in Mexico, contributing to medical literature and potentially guiding future patient care. Mutilated hands represent a significant surgical and rehabilitative challenge due to the profound structural damage they cause, leading to considerable functional impairment and psychological distress. The complexity of these injuries necessitates a multidisciplinary approach, particularly in resource-constrained settings. We present a case of a 45-year-old male with no prior significant medical history who sustained bilateral mutilated hands from an industrial accident involving hot rollers. The patient underwent extensive surgical reconstruction and postoperative care, facing complications such as skin graft integration issues and infections, which required a multidisciplinary treatment approach.

6.
Rev. bras. cir. plást ; 39(1): 1-7, jan.mar.2024. ilus
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1525807

RESUMO

Introdução: O mercado de procedimento estéticos cresce exponencialmente no Brasil. Tal crescimento tem despertado o interesse de várias categorias profissionais. A decisão de praticar no setor deve considerar as oportunidades de mercado da localidade na qual se pretende atuar. Entretanto, a área carece de análises comparativas documentando prováveis diferenças regionais no país. O objetivo do estudo é descrever as diferenças de mercado em procedimentos estéticos entre os estados e regiões brasileiras. Um índice de potencial consumo de cosmiatria (IPCC) é calculado para tal análise comparativa. Método: Estudo transversal envolvendo prestadores de procedimentos estéticos não cirúrgicos no Brasil. Buscas no Google®-Google Maps® foram conduzidas usando termoschave e entrevistas telefônicas realizadas para obter informações sobre categorias profissionais, tipo de provedores e serviços oferecidos. Valores preditivos positivos foram obtidos para todas as estratégias de busca e usados para estimar o número total de provedores. O tamanho da população e a renda per capita foram considerados para o cálculo dos IPCCs para os estados brasileiros. Resultados: São Paulo, Minas Gerais e Rio de Janeiro apresentaram os maiores IPCCs, sendo 524, 210 e 180, respectivamente. Roraima teve um IPCC de 14, o mais baixo do país. A Região Sudeste apresentou, em média, o maior IPCC (242) entre todas as regiões brasileiras. Conclusão: Considerando o tamanho da população e a renda, a Região Sudeste apresenta as maiores oportunidades de mercado em procedimentos estéticos não cirúrgicos no Brasil. Nossos achados podem ser de interesse para profissionais de saúde e investidores que atuam ou pretendem atuar no setor.


Introduction: The aesthetic procedure market is growing exponentially in Brazil. This growth has aroused the interest of several professional categories. The decision to practice in the sector must consider the market opportunities in the location in which you intend to operate. However, the area lacks comparative analyses documenting probable regional differences in the country. The objective of the study is to describe market differences in aesthetic procedures between Brazilian states and regions. An index of potential cosmetic consumption (IPCC) is calculated for such a comparative analysis. Method: Cross-sectional study involving providers of nonsurgical aesthetic procedures in Brazil. Searches on Google Maps® were conducted using key terms, and telephone interviews were conducted to obtain information on professional categories, types of providers, and services offered. Positive predictive values were obtained for all search strategies and used to estimate the total number of providers. Population size and per capita income were considered to calculate the IPCCs for Brazilian states. Results: São Paulo, Minas Gerais, and Rio de Janeiro presented the highest IPCCs, being 524, 210, and 180, respectively. Roraima had an IPCC of 14, the lowest in the country. The Southeast Region presented, on average, the highest IPCC (242) among all Brazilian regions. Conclusion: Considering population size and income, the Southeast Region presents the greatest market opportunities for nonsurgical aesthetic procedures in Brazil. Our findings may be of interest to healthcare professionals and investors who work or intend to work in the sector.

7.
Rev. bras. cir. plást ; 39(1): 1-11, jan.mar.2024. ilus
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1525813

RESUMO

Introdução: O envelhecimento facial é um processo gradual, complexo e multifatorial. É o resultado de mudanças na qualidade, volume e posicionamento dos tecidos. Cirurgiões plásticos têm modificado sua abordagem na cirurgia do rejuvenescimento facial optando pelo plano subaponeurótico (SMAS). O objetivo deste estudo é analisar 100 casos de pacientes operados pela técnica de SMAS profundo, avaliando sua aplicabilidade e eficácia. Método: Foram avaliados 100 pacientes, submetidos a cirurgia plástica facial pela técnica de SMAS profundo - "Deep Smas", e acompanhados por 6 meses. Observou-se a satisfação dos pacientes, número de complicações, número de reoperações, riscos e vantagens da técnica. Resultados: Foram operados 100 pacientes, num período de 3 anos. A idade variou de 41 a 79 anos, sendo 95% sexo feminino. As complicações foram 8 casos (8%) de lesões de ramos do nervo facial, sendo: 4 casos lesão do zigomático, 3 casos de lesão do mandibular e 1 caso de lesão do bucal; houve 1 caso (1%) de queloide retroauricular; 1 caso (1%) de hematoma. Em relação às revisões cirúrgicas, houve 8 casos (8%) de complementação cirúrgica por insatisfação das pacientes. Houve 15% de lesões nervosas entre a 1ª e a 40ª cirurgia, 5% entre a 41ª e a 80ª, e nenhuma lesão entre o 81º e o 100º paciente. Conclusão: O lifting facial profundo ou subSMAS mostrou ser efetivo, proporcionando bons resultados estéticos. Apresenta baixa taxa de recidiva e baixa taxa de morbidade, porém, necessita de uma longa curva de aprendizagem.


Introduction: Facial aging is a gradual, complex, and multifactorial process. It is the result of changes in the quality, volume, and positioning of tissues. Plastic surgeons have modified their approach to facial rejuvenation surgery, opting for the subaponeurotic plane (SMAS). The objective of this study is to analyze 100 cases of patients operated on using the deep SMAS technique, evaluating its applicability and effectiveness. Method: 100 patients were evaluated, undergoing facial plastic surgery using the deep SMAS technique - "Deep Smas", and followed up for 6 months. Patient satisfaction, number of complications, number of reoperations, risks, and advantages of the technique were observed. Results: 100 patients were operated on over 3 years. Age ranged from 41 to 79 years, with 95% being female. The complications were 8 cases (8%) of injuries to branches of the facial nerve, of which 4 cases of zygomatic injury, 3 cases of mandibular injury, and 1 case of buccal injury; there was 1 case (1%) of post-auricular keloid; 1 case (1%) of hematoma. Regarding surgical revisions, there were 8 cases (8%) of surgical completion due to patient dissatisfaction. There were 15% of nerve injuries between the 1st and 40th surgery, 5% between the 41st and 80th, and no injuries between the 81st and 100th patient. Conclusion: Deep facial lifting or subSMAS has proven to be effective, providing good aesthetic results. It has a low recurrence rate and low morbidity rate; however, it requires a long learning curve.

8.
Int J Cosmet Sci ; 46(5): 643-656, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38229481

RESUMO

OBJECTIVE: The Amazon has a rich biodiversity where many different plant species can be found. This diversity is an important source of bioactive substances, mainly due to the different structural components of their phytometabolites. Research for natural products is a strategy for the development of new agents in therapeutic applications, especially cosmetic applications, that have better pharmacological potential. Within this perspective, the objective of the study was to investigate the cosmetic application (anti-aging potential) of the stem-bark extract of Bertholletia excelsa H.B.K - (SBEBE), popularly known as the Brazil nut tree, here called SBEBE, a noble plant species of the Amazon that is rich in selenium. METHODS: Enzymatic, glycation, proliferation, cell-healing, collagen quantification, toxicity and genotoxicity assays were used. RESULTS: Among the enzymes involved in the extracellular matrix of the skin, SBEBE was able to inhibit only elastase (62.67 ± 3.75) when compared to the standard sivelestat (89.04 ± 0.53), and the extract was also able to inhibit both the oxidative and the non-oxidative pathway. When cell toxicity in fibroblasts (MRC-5) and keratinocytes (HACAT) was evaluated, SBEBE did not present toxicity in 24 h of incubation. After this period, the extract showed average cytotoxicity in 48 and 72 h, but not enough to reach the concentration of 50% of MRC-5 fibroblasts. In the trypan blue assay, the extract promoted fibroblast proliferation in 24, 48 and 72 h of incubation, which was evaluated through exponential cell growth, with emphasis mainly on the lowest concentration with results higher than the standard. When the cell healing capacity was evaluated, in 48 h of exposure to fibroblast, SBEBE was able to induce a cell carpet (cell film) in the cell monolayer scratch assay. CONCLUSIONS: SBEBE stimulated collagen production at all concentrations tested. In the alkaline comet assay, at the lowest concentration, the extract did not induce DNA damage when compared to the reference drug doxorubicin. This study proved that SBEBE extract can be considered an ally in the treatment of skin anti-ageing as a possible biotechnological, phytocosmetic product.


OBJECTIF: L'Amazonie possède une riche biodiversité ou l'on trouve de nombreuses espèces végétales différentes. Cette diversité constitue une source importante de substances bioactives, principalement en raison des différents composants structurels de leurs phytométabolites. La recherche de produits naturels est une stratégie de développement de nouveaux agents à applications thérapeutiques, notamment cosmétiques, présentant un meilleur potentiel pharmacologique. Dans cette perspective, l'objectif de l'étude était d'étudier l'application cosmétique (potentiel anti­âge) de l'extrait d'écorce de tige de Bertholletia excelsa H.B.K ­ (SBEBE), communément connu sous le nom de noix du Brésil, ici appelé SBEBE, un arbre noble, espèce végétale d'Amazonie riche en sélénium. MÉTHODES: Des tests enzymatiques, de glycation, de prolifération, de guérison cellulaire, de quantification du collagène, de toxicité et de génotoxicité ont été utilisés. RÉSULTATS: Parmi les enzymes impliquées dans la matrice extracellulaire de la peau, le SBEBE était capable d'inhiber uniquement l'élastase (62,67 +­ 3,75) par rapport au sivelestat standard (89,04 +­ 0,53), et l'extrait était également capable d'inhiber à la fois la voie oxydative et non­oxydative. Lorsque la toxicité cellulaire dans les fibroblastes (MRC­5) et les kératinocytes (HACAT) a été évaluée, SBEBE n'a présenté aucune toxicité en 24 heures d'incubation. Après cette période, l'extrait a montré une cytotoxicité moyenne en 48 et 72 h, mais pas suffisamment pour atteindre la concentration de 50 % de fibroblastes MRC­5. Dans le test au bleu trypan, l'extrait a favorisé la prolifération des fibroblastes en 24, 48 et 72 heures d'incubation, qui a été évaluée par une croissance cellulaire exponentielle, en mettant l'accent principalement sur la concentration la plus faible avec des résultats supérieurs à la norme. Lorsque la capacité de guérison cellulaire a été évaluée, en 48 heures d'exposition aux fibroblastes, SBEBE a pu induire un tapis cellulaire (film cellulaire) dans le test de grattage de la monocouche cellulaire. CONCLUSIONS: SBEBE a stimulé la production de collagène à toutes les concentrations testées. Dans le test alcalin des comètes, à la concentration la plus faible, l'extrait n'a pas induit de dommages à l'ADN par rapport au médicament de référence, la doxorubicine. Cette étude a prouvé que l'extrait de SBEBE peut être considéré comme un allié dans le traitement anti­âge cutané en tant que possible produit biotechnologique et phytocosmétique.


Assuntos
Cosméticos , Extratos Vegetais , Extratos Vegetais/farmacologia , Humanos , Cosméticos/farmacologia , Casca de Planta/química , Caules de Planta/química , Fibroblastos/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos
9.
J Cosmet Dermatol ; 23(3): 777-779, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37929644

RESUMO

The pivotal role of the bride's mothers in wedding celebrations is an effective motivation to seek cosmetic therapies, making them frequent patients in a dermatologists' offices. Addressing their aesthetic concerns contributes to their holistic well-being, but faces an intricate relationship between time availability, financial factors, and the critical emotional context. This article underscores the varying behavioral patterns of mothers of brides when seeking aesthetic treatments, providing tailored strategies for effective communication and decision-making, based on individual personalities. Additionally, this paper presents a specific timeline for the implementation of these interventions, including neuromodulators, collagen stimulators, and fillers. Understanding the unique traits and expectations of this particular population can lead to improved patient satisfaction, enhanced outcomes, and an overall positive experience.


Assuntos
Toxinas Botulínicas Tipo A , Técnicas Cosméticas , Cosméticos , Preenchedores Dérmicos , Envelhecimento da Pele , Humanos , Técnicas Cosméticas/psicologia , Motivação
10.
J Cosmet Dermatol ; 23(2): 510-524, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37658653

RESUMO

BACKGROUND: The development of effective cosmetic products for the reduction of the signs of skin aging is a complex process which requires an optimized combination of ingredients and specialized systems to deliver the actives to the skin layers. AIM: To evaluate the tolerance and antiaging clinical efficacy of a cosmetic formulation containing a blend of nanoencapsulated antioxidants: ascorbyl palmitate, resveratrol, tocopherol, caffeine, carnosine, and niacinamide. METHODS: Clinical efficacy was determined by subjective and instrumental analyses of collagen synthesis by fluorescence spectroscopy, by three-dimensional imaging analysis of suborbital edema, and by analysis of skin hydration and sebum content by biophysical techniques-Corneometer® and Sebumeter®. RESULTS: The studied formulation was safe and effective for the improvement of skin appearance by increasing collagen synthesis and skin moisturizing and by reducing facial blemishes, swelling, and oiliness. A preclinical exploratory approach using an experimental model of human cell and skin cultures agreed with the observed antiaging effects, identifying mechanisms related to the containment of oxidative stress, reduction of melanin production, increased synthesis of type I procollagen, and regulation of the epidermal cohesion protein filaggrin. CONCLUSIONS: The skin benefits obtained resulted from the combination of the ingredients in the formulation and the nanoencapsulation-based delivery system, which favors the solubility, safety, efficacy, and bioavailability of the preparation to the skin.


Assuntos
Cosméticos , Envelhecimento da Pele , Humanos , Antioxidantes/química , Pele , Higiene da Pele , Cosméticos/farmacologia , Cosméticos/química , Colágeno/metabolismo
11.
Mundo Saúde (Online) ; 48: e15832024, 2024.
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1560692

RESUMO

A elevada produção global de Mangifera indica gera uma considerável quantidade de resíduos, como cascas e sementes que são frequentemente descartados. O aproveitamento desses subprodutos promove uma abordagem mais sustentável, reduzindo impactos ambientais e abrindo novas perspectivas na área fitocosmética. A casca apresenta metabólitos secundários conhecidos principalmente por suas propriedades antioxidantes, destacando-se os compostos fenólicos. Esses antioxidantes são capazes de retardar a velocidade de oxidação promovida por radicais livres formados por fatores externos ou fisiopatológicos. Assim, antioxidantes naturais extraídos a partir de espécie vegetal estão sendo cada vez mais estudados para aplicação na indústria cosmética e farmacêutica. O potencial fitocosmético do extrato glicólico da casca de M. indica L. var. Tommy Atkins em três bases galênicas (gel de Carbopol®, gel-creme e gel de Estagel®) foi avaliado por meio dos ensaios de atividade antioxidante, pelo método do radical DPPH, e estudos de estabilidade. As formulações com o extrato apresentaram-se estáveis e compatíveis para o uso tópico, pois não foram verificados sinais de instabilidade como alteração das características organolépticas e do pH. Em relação à atividade antioxidante, formulações com o extrato apresentaram potencial antioxidante, porém a formulação com Carbopol® e gel-creme apresentaram melhor desempenho em relação ao Estagel®. Após 30 dias de estabilidade preliminar em diferentes condições de temperatura (40,0 ± 2<0°C, 20,0 ± 5,0°C, 5,0 ± 2,0°C) houve redução de atividade antioxidante somente no gel de Carbopol® armazenado sob elevada temperatura, indicando a melhor forma de armazenamento. Diante disso, os resultados sugerem a promissora incorporação de M. indica L. var. Tommy Atkins em bases cosméticas.


The high global production of Mangifera indica generates a considerable amount of waste, such as peels and seeds that are often discarded. The use of these by-products promotes a more sustainable approach, reducing environmental impacts and opening new perspectives in the phytocosmetics area. The peel presents secondary metabolites known mainly for their antioxidant properties, highlighting phenolic compounds. These antioxidants are capable of slowing down the rate of oxidation promoted by free radicals formed by external or pathophysiological factors. Thus, natural antioxidants extracted from plant species are increasingly being studied for application in the cosmetic and pharmaceutical industry. The phytocosmetic potential of the glycolic extract from the peel of M. indica L. var. Tommy Atkins in three galenic bases (Carbopol® gel, cream gel and Estagel® gel) was evaluated through antioxidant activity tests, the DPPH radical scavenging method, and stability studies. The formulations with the extract were stable and compatible for topical use, as there were no signs of instability such as changes in organoleptic characteristics and pH. Regarding antioxidant activity, formulations with the extract showed antioxidant potential, however the formulation with Carbopol® and gel-cream showed better performance compared to Estagel®. After 30 days of preliminary stability in different temperature conditions (40.0 ± 2<0°C, 20.0 ± 5.0°C, 5.0 ± 2.0°C) there was a reduction in antioxidant activity only in the gel of Carbopol® stored at high temperature, indicating the best form of storage. Therefore, the results suggest the promising incorporation of M. indica L. var. Tommy Atkins in cosmetic foundations.

12.
Rev. bras. oftalmol ; 83: e0038, 2024. graf
Artigo em Português | LILACS | ID: biblio-1569739

RESUMO

RESUMO Com o crescimento da indústria cosmética global, a busca pela estética e pelo rejuvenescimento impulsionou o aumento de procedimentos estéticos. A gordura autóloga é o tipo de preenchimento mais comum e mais grave relacionado à cegueira iatrogênica. A oclusão iatrogênica da artéria oftálmica é uma complicação rara (mas devastadora) das injeções de preenchimento facial. Embora diversos tratamentos tenham sido relatados e propostos, até o momento não há eficácia comprovada. Na identificação da oclusão de artéria central da retina, o tempo é de fundamental importância para o prognóstico visual do paciente. Os resultados, em geral, são insatisfatórios, e há pouca ou nenhuma evidência favorável. O objetivo deste trabalho foi relatar o caso de uma paciente que apresentou oclusão de artéria central da retina após procedimento cosmético com gordura autóloga em região nasolabial.


ABSTRACT The global cosmetic industry growth and the desire for aesthetics and rejuvenation have increased the aesthetic procedures. Autologous fat is the most common and most serious type of filling related to iatrogenic blindness. Iatrogenic occlusion of the ophthalmic artery is a rare but devastating complication of facial filler injections. Although several treatments have been reported and proposed, to date there is no proven efficacy. In identifying central retinal artery occlusion, timing is crucial to the patient's visual prognosis. The results, in general, are unsatisfactory and there is little or no favorable evidence. This paper aimed to report the case of a patient who presented central retinal artery occlusion after a cosmetic procedure with autologous fat in the nasolabial region.


Assuntos
Humanos , Feminino , Adulto , Artéria Oftálmica/patologia , Oclusão da Artéria Retiniana/etiologia , Técnicas Cosméticas/efeitos adversos , Embolia Gordurosa/etiologia , Gordura Subcutânea/transplante , Doença Iatrogênica , Complicações Pós-Operatórias , Transplante Autólogo , Injeções Intradérmicas/efeitos adversos , Angiofluoresceinografia , Oclusão da Artéria Retiniana/diagnóstico , Acuidade Visual , Cegueira/etiologia , Tomografia de Coerência Óptica
13.
Adv Drug Deliv Rev ; 205: 115156, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38104897

RESUMO

In recent decades, a sweeping technological wave has reshaped the global economic landscape. Fueled by the unceasing forces of digital innovation and venture capital investment, this transformative machine has left a significant mark across numerous economic sectors. More recently, the emergence of 'deep tech' start-ups, focusing on areas such as artificial intelligence, nanotechnology, and biotechnology, has infused a fresh wave of innovation into various sectors, including the pharmaceutical and cosmetic industry. This review explores the significance of innovation within the cosmetics sector, with a particular emphasis on delivery systems. It assesses the crucial process of bridging the gap between research and the market, particularly in the translation of nanotechnology into tangible real-world applications. With the rise of nanotechnology-based beauty ingredients, we can anticipate groundbreaking advancements that promise to surpass consumer expectations, ushering in a new era of unparalleled innovation in beauty products.


Assuntos
Inteligência Artificial , Cosméticos , Humanos , Preparações Farmacêuticas , Nanotecnologia
14.
Toxics ; 11(11)2023 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-37999563

RESUMO

Cosmetic residues have been found in water resources, especially trace elements of precursors, couplers, and pigments of hair dyes, which are indiscriminately disposed of in the sewage system. These contaminants are persistent, bioactive, and bioaccumulative, and may pose risks to living beings. Thus, the present study assessed the ecotoxicity of two types of effluents generated in beauty salons after the hair dyeing process. The toxicity of effluent derived from capillary washing with water, shampoo, and conditioner (complete effluent-CE) and effluent not associated with these products (dye effluent-DE) was evaluated by tests carried out with the aquatic organisms Artemia salina, Daphnia similis, and Danio rerio. The bioindicators were exposed to pure samples and different dilutions of both effluents. The results showed toxicity in D. similis (CE50 of 3.43% and 0.54% for CE and DE, respectively); A. salina (LC50 8.327% and 3.874% for CE and DE, respectively); and D. rerio (LC50 of 4.25-4.59% and 7.33-8.18% for CE and DE, respectively). Given these results, we can infer that hair dyes, even at low concentrations, have a high toxic potential for aquatic biota, as they induced deleterious effects in all tested bioindicators.

15.
J Pediatr (Rio J) ; 2023 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-38012955

RESUMO

OBJECTIVE: Perfume (Parfum) or fragrance is a natural or synthetic cosmetic ingredient added to emit a pleasant aroma or to improve the odor of a cosmetic formula. It is a mixture of substances, not revealed by the manufacturer, which may contain ingredients with allergenic potential, endocrine disruptors, and other possible harmful effects on human health. This study aims to analyze children's cosmetics labels to assess the presence of Perfume. METHODS: The researchers randomly visited points of sale in Curitiba, the capital of a southern Brazilian state; in order to catalog the largest possible number of children's cosmetics items. RESULTS: 398 children's cosmetics were analyzed and found Parfum on 295 (74.1 %) of the labels, including 90.4 and 79,1 % of the shampoos and wet wipes, respectively. CONCLUSION: Exposure of children's skin to fragrances can lead to local side effects such as allergies, but also to systemic effects, and the lack of knowledge of the general population and health professionals about its possible deleterious effects emphasizes the importance of changes in the regulation of cosmetics aiming to reduce the use of this ingredient.

16.
Heliyon ; 9(9): e19599, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37809484

RESUMO

Amoebae of the genus Acanthamoeba are etiological agents of amoebic keratitis, for which up to now there is no treatment of choice and one of its main risk factors is the use of contact lenses, including cosmetic contact lenses. Recently there has been an increase in amoebic keratitis cases due to the use of cosmetic contact lenses. Therefore, having a solution for the care of lenses with an efficient disinfectant effect that prevents the adhesion of trophozoites to lenses becomes essential. This study was carried out to determine the effect of 8 multipurpose contact lenses care solutions on Acanthamoeba castellanii trophozoites viability, and the efficiency of two of them to prevent the trophozoites adherence onto two cosmetic contact lenses (Acuvue 2, approved by the US Food and Drug Administration, and Magic Eye CCL, not approved). After 3 h of interaction, only AO Sept Plus, OPTI FREE Replenish, Renu Plus, Bio True and Multiplus significantly reduced the number of viable trophozoites with respect to the control; at 6 h Renu Plus, and at 12 h Conta Soft Plus and Multiplus, maintained the inhibitory effect. Only Opti Free Pure Moist did not significantly reduce the number of viable trophozoites. Multiplus and Opti Free Pure Moist (selected for their greater and lesser antiamibic effect) significantly reduced trophozoite adherence to both lenses; however, Opti Free Pure Moist was more efficient, despite the fact that A. castellanii adhered similarly to both lenses. Our results show that in all the multipurpose solutions evaluated, hundreds of viable A. castellanii trophozoites remain after several hours of incubation. Therefore, storage of the lenses in their case with MPS maintains the potential risk of amoebic keratitis in, cosmetic contact lenses wearers. Moreover, the use of CCL, not approved by the FDA, can increase the risk factor for AK since its poor manufacture can favor the permanence of amoebae, in addition to being a risk for corneal integrity.

17.
Rev. bras. cir. plást ; 38(3): 1-6, jul.set.2023. ilus
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1512681

RESUMO

Introdução: A demanda por cirurgia para correção de ginecomastia tem aumentado em função da grande quantidade de pacientes submetidos a tratamentos bariátricos. A maioria destes pacientes requerem grande remoção do excesso de pele, tecido gorduroso e reposicionamento do complexo areolopapilar, assim como adequação do volume da aréola. O objetivo deste estudo é descrever a técnica de correção de ginecomastia grau III através de cicatriz horizontal sem cicatriz vertical, com reposicionamento do complexo areolopapilar. Método: Estudo prospectivo de 27 pacientes masculinos com diagnóstico de ginecomastia grau III da classificação de Simon, operados em clínica particular, entre janeiro de 2013 e agosto de 2020, pela técnica de cicatriz horizontal com transposição do complexo areolopapilar e sem cicatriz vertical. Resultados: Foram operados 27 pacientes, num período de 7,5 anos, todos ex-obesos, submetidos previamente a tratamento de perda de peso. A idade variou de 17 a 74 anos, média etária de 52 anos. O peso das peças removidas variou de 175 a 758 gramas, média de 376 gramas. As complicações foram: 1 caso de hematoma tardio (3,7%), 1 caso de seroma (3,7%) e 2 casos de cicatriz hipertrófica (7,4%). Conclusão: O tratamento cirúrgico da ginecomastia grau III através da técnica de cicatriz horizontal, sem cicatriz vertical e com reposicionamento do complexo areolopapilar demonstrou ser efetivo, com baixa morbidade e bons resultados estéticos.


Introduction: The demand for surgery to correct gynecomastia has increased due to the many patients undergoing bariatric treatments. Most patients require extensive removal of excess skin, and fatty tissue, repositioning the nipple-areolar complex, and adjusting the areola volume. This study aims to describe the correction technique for grade III gynecomastia using a horizontal scar without a vertical scar, with repositioning of the nipple-areolar complex. Method: Prospective study of 27 male patients diagnosed with Simon grade III gynecomastia, operated in a private clinic between January 2013 and August 2020, using the horizontal scar technique with transposition of the nipple-areola complex and without a vertical scar. Results: 27 patients underwent surgery over 7.5 years, all ex-obese, previously submitted to weight loss treatment. Age ranged from 17 to 74 years, mean age of 52 years. The weight of the removed parts ranged from 175 to 758 grams, an average of 376 grams. Complications were 1 case of late hematoma (3.7%), 1 case of seroma (3.7%), and 2 cases of hypertrophic scarring (7.4%). Conclusion: Surgical treatment of grade III gynecomastia using the horizontal scar technique, without a vertical scar and with repositioning of the nippleareolar complex, proved to be effective, with low morbidity and good aesthetic results.

18.
J Appl Crystallogr ; 56(Pt 4): 1002-1014, 2023 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-37555227

RESUMO

Human hair is a biopolymer constituted mainly of keratin intermediate filaments, lipids, pigments and water. Cosmetic treatments usually interact with the hair at the molecular level, inducing changes in its components and modifying the physicochemical and mechanical properties of the fibers. Here, the effect of acid straightening on the morphology and ultrastructure of Caucasian hair was investigated by a group of complementary experimental methods: wide-, small- and ultra-small-angle X-ray scattering; high-resolution 3D X-ray microscopy; quasi-elastic neutron scattering and inelastic neutron scattering; thermogravimetry-mass spectrometry; and differential scanning calorimetry (DSC). X-ray diffraction patterns showed that acid straightening associated with a flat iron (∼180°C) changed the cortex of the fiber, shown by denaturation of the intermediate filaments (measured by DSC). The increase in the spacing of the lipid layers and the observation of the dehydration behavior of the fiber provided indications that water may be confined between these layers, while neutron spectroscopy showed alterations in the vibration mode of the CH2 groups of the lipids and an increase of the proton (H+) mobility in the hair structure. The latter may be associated with the extremely low pH of the formulation (pH ≃ 1). Additionally, this investigation showed that bleached hair (one-time bleached) is more damaged by the action of acid straightening than virgin hair, which was shown by a threefold increase in the percentage of total porosity of the tresses. The obtained results demonstrate that the investigation approach proposed here can provide very important thermodynamic and structural information on induced changes of hair structure, and certainly can be applied for the evaluation of the action mode and efficiency of cosmetic treatments.

19.
Int J Cosmet Sci ; 45(6): 699-724, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37402111

RESUMO

The term biopolymer refers to materials obtained by chemically modifying natural biological substances or producing them through biotechnological processes. They are biodegradable, biocompatible and non-toxic. Due to these advantages, biopolymers have wide applications in conventional cosmetics and new trends and have emerged as essential ingredients that function as rheological modifiers, emulsifiers, film-formers, moisturizers, hydrators, antimicrobials and, more recently, materials with metabolic activity on skin. Developing approaches that exploit these features is a challenge for formulating skin, hair and oral care products and dermatological formulations. This article presents an overview of the use of the principal biopolymers used in cosmetic formulations and describes their sources, recently derived structures, novel applications and safety aspects of the use of these molecules.


Le terme biopolymère fait référence aux matériaux obtenus par modification chimique des substances biologiques naturelles ou ceux qui surviennent des processus biotechnologiques. Ils sont biodégradables, biocompatibles, et non-toxiques. Du à leur avantages, les biopolymères ont de larges applications dans les cosmétiques conventionnels ainsi que dans les nouvelles tendances, et se placent comme des ingrédients essentiels qui peut être utilise comme modificateurs rhéologiques, émulsifiants, producteurs de films, humectants, hydratants, antimicrobiens, et, plus récemment, comme matériaux avec activité métabolique sur la peau. Le développement d'approches compte tenu de ces caractéristiques constitue un défi pour la création de produits de soins capillaires, dermatologiques et buccodentaires. Cet article présente une vision sur l'utilisation des principaux biopolymères dans les produits cosmétiques, et décrit leurs sources, leur structures dérivées, les nouvelles applications, ainsi que les aspects de sécurité lies à leur utilisation comme molécules cosmétiques.


Assuntos
Cosméticos , Biopolímeros/química , Emulsificantes
20.
JPRAS Open ; 37: 82-86, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37457990

RESUMO

Background: Cutis verticis gyrata (CVG) is a condition of excessive skin growth and excessive laxity of the scalp, leading to deep furrows and folds that resemble the gyri and outer surface of the brain. Approaches for the treatment of CVG range from conservative to surgical, the last one being the predominant way of treating the condition, however, the surgery proposed in the recent literature may not be suitable for patients who desire a less invasive approach. Aim: To report the first case of autologous fat injection as a novel treatment option for primary essential CVG. Methods: A 51 -year-old Colombian man, with no medical records was treated with a scalp injection of autologous fat, with previous failed treatment with pressure therapy apply directly on skin is described. Results: A successful cosmetic improvement and a less invasive approach was reached after two sessions of autologous fat grafting. Conclusion: This method allowed excellent cosmetic outcomes while preserving the option of subsequent surgical repair in refractory cases.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA