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1.
Int J Nanomedicine ; 19: 5953-5972, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38895147

RESUMO

Background and Purpose: Natural products are potential sources of anticancer components. Among various species, the lipophilic extract of the Viscum album subsp. austriacum (Wiesb.) Vollm. (VALE) has shown promising therapeutic potential. The present work aimed to qualify the plant source and characterize the extract's chemical profile. In addition, a self-nanoemulsifying drug delivery system (SNEDDS) containing VALE (SNEDDS-VALE) was developed. Methods: V. album subsp. austriacum histochemistry was performed, and the chemical profile of VALE was analyzed by GC-MS. After the SNEEDS-VALE development, its morphology was visualized by transmission electron microscopy (TEM), while its stability was evaluated by the average droplet size, polydispersity index (PdI) and pH. Lastly, SNEDDS-VALE chemical stability was evaluated by LC-DAD-MS. Results: The histochemical analysis showed the presence of lipophilic compounds in the leaves and stems. The major compound in the VALE was oleanolic acid, followed by lupeol acetate and ursolic acid. SNEDDS was composed of medium chain triglyceride and Kolliphor® RH 40 (PEG-40 hydrogenated castor oil). A homogeneous, isotropic and stable nanoemulsion was obtained, with an average size of 36.87 ± 1.04 nm and PdI of 0.14 ± 0.02, for 14 weeks. Conclusion: This is the first histochemistry analysis of V. album subsp. austriacum growing on Pinus sylvestris L. which provided detailed information regarding its lipophilic compounds. A homogeneous, isotropic and stable SNEDDS-VALE was obtained to improve the low water solubility of VALE. Further, in vitro and in vivo experiments should be performed, in order to evaluate the antitumoral potential of SNEDDS-VALE.


Assuntos
Emulsões , Extratos Vegetais , Viscum album , Extratos Vegetais/química , Extratos Vegetais/administração & dosagem , Viscum album/química , Emulsões/química , Folhas de Planta/química , Sistemas de Liberação de Medicamentos/métodos , Tamanho da Partícula , Sistemas de Liberação de Fármacos por Nanopartículas/química , Nanopartículas/química
2.
BrJP ; 7: e20240026, 2024. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1557191

RESUMO

ABSTRACT BACKGROUND AND OBJECTIVES: Chronic pelvic pain (CPP) is a common condition in women and there are often associated comorbidities. The objective of this study was to evaluate the prevalence of comorbidities in patients with CPP and to seek associations between comorbidities and the manifestations of chronic pain. METHODS: Observational case-control study with sociodemographic, behavioral and clinical information, including comorbidities, in 246 women, 123 with CPP and 123 without CPP (control group). RESULTS: Anxiety, depression, migraine and endometriosis were the most frequent comorbidities in women with CPP. The comorbidities assessed in the CPP group were not associated with pain intensity score, history of abortion, physical violence or sexual violence (p>0.05). In the group of women with CPP and endometriosis, the median anxiety and depression score was significantly lower than in the group without endometriosis (14.5; 95% CI: 11.0-14.9) versus (17.0; 95% CI: 14.6-16.7), p=0.012 and (13.0; 95%CI: 11.1-15.9) versus (16.5; 95% CI: 14.5-17.6), p= 0.045, respectively. In patients with migraine, the median depression score was higher in the group of women with CPP compared to the group without CPP (15.0; 95% CI: 14.1-17.8) versus (10.0; 95% CI: 8.5-12.4), p=0.048. CONCLUSION: The most prevalent comorbidities in women with CPP were mental disorders, migraine and endometriosis. Comorbidities were not related to pain intensity, physical violence or sexual violence. Having a diagnosis of endometriosis is associated with lower anxiety and depression scores in patients with CPP. Overlapping migraine and CPP were associated with a worse depression score.


RESUMO JUSTIFICATIVA E OBJETIVOS: A dor pélvica crônica (DPC) é uma condição comum em mulheres e frequentemente há comorbidades associadas. O objetivo deste estudo foi avaliar a prevalência de comorbidades em pacientes de DPC e buscar associações entre comorbidades e as manifestações da dor crônica. MÉTODOS: Estudo observacional de caso-controle com informações sociodemográficas, comportamentais e clínicas, incluindo comorbidades, em 246 mulheres, sendo 123 com DPC e 123 sem DPC (grupo controle). RESULTADOS: Ansiedade, depressão, enxaqueca e endometriose foram as comorbidades mais frequentes em mulheres com DPC. As comorbidades avaliadas no grupo com DPC não se associaram com o escore de intensidade da dor, com história de aborto, de violência física nem de violência sexual (p>0,05). No grupo de mulheres com DPC e endometriose, a mediana do escore de ansiedade e de depressão foi significativamente menor do que no grupo sem endometriose (14,5; IC 95%: 11,0-14,9) versus (17,0; IC 95%: 14,6-16,7), p=0,012 e (13,0; IC 95%: 11,1-15,9) versus (16,5; IC 95%: 14,5-17,6), p=0,045, respectivamente. Em pacientes com enxaqueca, a mediana do escore de depressão foi maior no grupo de mulheres com DPC em relação ao grupo sem DPC (15,0; IC 95%: 14,1-17,8) versus (10,0; IC 95%: 8,5-12,4), p=0,048. CONCLUSÃO: As comorbidades mais prevalentes em mulheres com DPC foram transtornos mentais, enxaqueca e endometriose. As comorbidades não se associaram à intensidade da dor, violência física ou sexual. O diagnóstico de endometriose associou-se a menores escores de ansiedade e de depressão em mulheres com DPC. A sobreposição de enxaqueca e DPC associou-se a um pior escore de depressão.

3.
Pharmaceutics ; 14(12)2022 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-36559269

RESUMO

Viscum album L., popularly known as mistletoe, is well known for its anti-cancer properties, and the pharmaceutical application of hydroalcoholic dry extracts is still limited due to its low solubility in aqueous media, and physicochemical instability. The Pluronic® F127 is an amphiphilic polymer, which permits the solubilization of lipophilic and hydrophilic compounds. In this investigation, physicochemical features of hydrogel containing V. album dry extract (VADE-loaded-hydrogel) were performed by: dynamic light scattering (DLS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and transmission electron microscopy (TEM). VADE-loaded-hydrogel presented nanometer-size micelles with volume distribution ranging from 10.58 nm to 246.7 nm, and a polydispersity index of 0.441. The sample thermal analyses (TG and DSC) showed similar decomposition curves; however, the thermal events indicated an increase in thermal stability in relation to the presence of the extract. In addition to these interesting pharmaceutical features, IC50 values of 333.40 µg/mL and >1000 µg/mL were obtained when tumor (SCC-25) and non-tumor (L929) cells were incubated with VADE-loaded-hydrogel, respectively. The optical and ultrastructural cellular analysis confirmed the tumor selectivity since the following alterations were detected only in SCC-25 cells: disorganization of plasmatic membrane; an increase of cytoplasmatic vacuole size; alteration in the cristae mitochondrial shape; and generation of amorphous cellular material. These results emphasize the promising antitumoral potential of VADE-loaded-hydrogel as an herbal drug delivery system via in vitro assays.

4.
Artigo em Inglês | MEDLINE | ID: mdl-36293927

RESUMO

Chronic pelvic pain (CPP) in women is a highly prevalent condition worldwide and requires multimodal treatment. Adverse childhood experiences have been associated with CPP in women, while allodynia and poor outcomes have been linked to pain catastrophizing in these patients. Pain perception has been associated with parenting style during childhood. The objective of this study was to investigate the association between parenting style, pain catastrophizing, anxiety, depression and CPP in women. A case-control study was conducted between May 2018 and August 2021 with 123 women with CPP and 123 pain-free controls. Questionnaires were used to collect participants' data. The association between parenting style and CPP was assessed using multiple logistic regression, with odds ratios (OR) and 95% confidence intervals (CI) being calculated. The correlation between catastrophizing, pain intensity, pain duration, anxiety, depression, and parenting style in women with CPP was assessed using Spearman's rank correlation coefficient (r). A higher frequency of low maternal care (60.7% versus 45.2%; p = 0.026), anxiety (79.7% versus 56.9%; p < 0.001), depression (73.2% versus 56.1%; p = 0.008) and physical violence (31.7% versus 14.6%; p = 0.003) was found in the CPP group compared to the controls. There was no association between parenting style and CPP in the adjusted analysis. A positive correlation was found between catastrophizing and pain intensity (r = 0.342; p < 0.001), anxiety (r = 0.271; p = 0.002), depression (r = 0.272; p = 0.002), and maternal overprotection (r = 0.185; p = 0.046). A negative correlation was found between anxiety and maternal (r = -0.184; p = 0.047) and paternal (r = -0.286; p = 0.006) care and between depression and maternal (r = -0.219; p = 0.018) and paternal (r = -0.234; p = 0.026) care. The present results suggest a significant but weak association of parenting style with pain catastrophizing, the mental health of women with CPP, and the way in which they experience pain.


Assuntos
Catastrofização , Dor Crônica , Humanos , Feminino , Catastrofização/psicologia , Poder Familiar/psicologia , Saúde Mental , Estudos de Casos e Controles , Dor Pélvica , Dor Crônica/psicologia , Depressão/psicologia
5.
Int. j. high dilution res ; 21(1): 1-1, May 6, 2022.
Artigo em Inglês | HomeoIndex - Homeopatia | ID: biblio-1396611

RESUMO

The XXXIV annual GIRI Meeting was held for the first time together with the V International Workshop on Homeopathy (IWH) in frames of an academic-scientific partnership between the Brazilian Public University (Universidade Federal do Rio de Janeiro, UFRJ) and the GIRI society (International Research Group on Very Low Dose and High Dilution Effects). This event occurred on December 2ndto 4th2021 as online conference. Thanks to the partnership as well as the use of the virtual platform, the GIRI meeting 2021 reached the highest visibility in the whole history of already 34 meetings (there were ca. 600 inscriptions and more than 14 000 page views on the last conference day). At the meeting 12 abstractswere presented as oral contributions and further 34 as e-posters. The 5thEdition of International Workshop on Homeopathy regarded "The scientific evidence of homeopathy in health care" and provided the possibilities to exchange scientific experiences, todiscuss many research details, and to meet other researchers involved into basic and clinical homeopathic research from all over the world. The scientific sections were dedicated to the following subjects: -Homeopathy teaching and practice; -Chemical and physical models; -In vivoand in vitromodels; -Clinical trials.We are convinced that the content of the present special issue of the International Journal High Dilution Research dedicated to the memories of XXXIV GIRI meeting will bring new insights to the homeopathic scientific community.© International Journal of High Dilution Research. Not for commercial purposes.


Assuntos
Homeopatia
6.
Int. j. high dilution res ; 21(1): 34-35, May 6, 2022.
Artigo em Inglês | LILACS, HomeoIndex - Homeopatia | ID: biblio-1396469

RESUMO

Homeopathic ultra-diluted solutions surpass the threshold of matter dispersion and, consequently, their chemical constitution is similar to inert solvent. Nevertheless, randomized clinical trials have shown that the clinical effects of these homeopathic medicines are superior to placebo1. Nuclear magnetic resonance (NMR) is one of the most promising techniques to detect physicochemical alterations induced by homeopathic procedures2,3. Aims: To investigate T2 NMR relaxation times of Zincum metallicumand lactose dynamized samples. Methodology: Zincum metallicumsamples were ground until 6dH using lactose as an excipient. Subsequently, these samples were dynamized with ultrapure water to produce 8dH, 9dH, 10dH,and 11dH. Lactose dynamized samples (6dH-11dH) were used as control. Aliquots of 540µl of each sample were diluted with 60µl of deuterated water (D2O) in 5mm tubes. The analyses were carried out in Bruker Ascend TM 500MHZ spectrometer at 288 K. Results and discussion: The Zincum metallicumand lactose T2 relaxation times were very similar, except for Zincum metallicum8dH, which presented a value of 1.226 in comparison to 1.036 of lactose 8dH. The following T2 values were registered: 1.287 -9dH; 1.413 -10dH; 1.467 -11dH, and 1.303 -9dH; 1.400 ­10dH; 1.350 -11dH, for Zincum metallicumand lactose, respectively. The differences detected in 8dH samples are probably due to the presence of lactose in the first dilution step, in which 1 part of the 6dH triturated mixture was diluted in 9 parts of water, to prepare 7dH. Following this homeopathic procedure, 8dH solutions remain around 1% of lactose which could be influenced by the T2 values registered.Conclusion: These preliminary results showed the possibility to apply the NMR technique to evaluate the influence of dynamization in the relaxation parameters. Further studies should be carried out with other potencies and/or other homeopathic substances, in addition to the evaluation of T1 and the T1/T2 parameters, as previously described by other groups.


Assuntos
Escalas de Preparação , Zincum Metallicum/análise , Medicamento Homeopático , Espectroscopia de Prótons por Ressonância Magnética
7.
Int. j. high dilution res ; 21(1): 5-5, May 6, 2022.
Artigo em Inglês | LILACS, HomeoIndex - Homeopatia | ID: biblio-1396594

RESUMO

Quality control of ahomeopathic mother tincture begins with the analysis of the raw material. Once the product is obtained, some organoleptic characteristics and Physicochemical properties such as appearance, colour, odour, density, dry residue, alcohol content,and chemicalmarker are evaluated. In Brazil, mother tinctures from different suppliers may have high variability in terms of the specifications described in the homeopathic pharmacopoeia. Objective: The aim of the present study was to compare mother tinctures' quality control from different pharmaceutical suppliers based on Brazilian Homeopathic Pharmacopoeia 3rd edition. Methods: Five mother tinctures were selected according to the high number of requests in the pharmacies, also its monographs are in the Brazilian Homeopathic Pharmacopoeia (FHB) 3rd edition. The report of analysis of the product was provided by three homeopathic pharmacies from the city of Rio de Janeiro. The information in the reports wasevaluated and compared to its monograph. Results and discussion: In this study, it was found that the number of laboratories that provide homeopathic pharmaceutical ingredients is rather low. In addition, in some reports, a number of identification tests werenot described properly when compared to the monograph. Besides that, some information diverges from the pharmacopoeia, for example, absence of dry residue testing, replacement of the part of the plant used to prepare the mother tincture,and results that do not meet pharmacopoeia specifications. As can be seen, the quality and effectiveness of homeopathic medicines prepared from these tinctures may be compromised. Conclusion:In order to guarantee consumer protection and the quality and effectiveness of medicines, governments and regulatory agencies should requirea greater commitment from suppliers in the production of homeopathic inputs.


Assuntos
Controle de Qualidade , Tintura Mãe
8.
Int J Womens Health ; 14: 225-244, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35210869

RESUMO

Chronic pelvic pain (CPP) affects a significant proportion of women worldwide And has a negative impact on several aspects of these women's lives including mental health, work, relationships and sexual function, among others. This set of factors ultimately reflects negatively on quality Of life. The physiopathology of CPP is complex and remains to be fully clarified; however, recent advances have increased understanding of the mechanisms involved in chronic pain in general, and more specifically, CPP. Nonetheless, even when a detailed clinical history is obtained, meticulous physical examination is performed and imaging resources are appropriately used, the organic cause of the pain may still fail to be identified in a substantial number of women with CPP. Management of CPP may therefore be challenging. This narrative review was aimed at adding to the available literature on the subject, presenting and discussing the principal characteristics of CPP in women. The paper highlights gaps in the literature while providing the most up-to-date evidence associated with the physiopathology and classification of pain, its diagnosis and treatment. In addition, current challenges in the management of women with CPP are discussed.

9.
Biomed Res Int ; 2021: 6372922, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34337033

RESUMO

OBJECTIVE: To investigate the association between parental bonding styles and anxiety, depression, suicidal ideation, and self-efficacy beliefs in undergraduate medical students. METHODS: A cross-sectional, self-administered survey involving 315 Brazilian medical students was conducted online. The Parental Bonding Instrument (PBI), the Generalized Anxiety Disorder-7 (GAD-7) scale, the 9-item Patient Health Questionnaire (PHQ-9), the Suicidal Behaviors Questionnaire-Revised (SBQ-R), and the general self-efficacy (GSE) scale were used. The internal consistency of the instruments used in the study was analyzed using Cronbach's alpha. Multiple logistic regression models were applied, and the odds ratios (OR) and respective 95% confidence intervals (CI) were calculated to determine the association between parental bonding styles and anxiety, depression, suicidal ideation, and general self-efficacy beliefs. RESULTS: In the analysis adjusted for sociodemographic variables, maternal affectionless control was associated with a greater risk of anxiety (OR = 2.48; 95% CI: 1.15-5.33), depression (OR = 7.54; 95% CI: 3.20-17.78), suicidal ideation (OR = 3.62; 95% CI: 1.58-8.27), and low self-efficacy (OR = 3.81; 95% CI: 1.76-8.25), while maternal neglectful parenting was associated with depression (OR = 3.24; 95% CI: 1.17-8.96) and paternal affectionate constraint with suicidal ideation (OR = 3.09; 95% CI: 1.36-7.02). CONCLUSIONS: These findings showed dysfunctional parenting styles to be associated with mental illnesses and low self-efficacy in Brazilian undergraduate medical students. This should be taken into consideration when treating medical students with mental disorders.


Assuntos
Cultura , Educação de Graduação em Medicina , Transtornos Mentais/psicologia , Poder Familiar , Autoeficácia , Estudantes de Medicina/psicologia , Ansiedade , Brasil , Depressão , Feminino , Humanos , Masculino , Ideação Suicida , Adulto Jovem
10.
Food Chem ; 365: 130469, 2021 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-34243123

RESUMO

The disinfection of water for human consumption with chlorine or other compounds produces secondary reactions with the organic matter, generating undesirable disinfection by-products (DBPs). Among these are trihalomethanes (THMs), identified as carcinogenic compounds. This work determined the trihalomethanes concentration, both speciated and total, in treated water distributed and stored in tanks of residential condominiums of different social classes. THMs were quantified using static manual Headspace as preconcentration technique, injecting the vapor phase collected in a GC/FID. The results show that the water distributed to the homes already contains THMs, trichloromethane being the major compound. The Principal Components Analysis (PCA) and Hierarchical Cluster Analysis (HCA) with 60 water samples showed that there is no significant distinction among samples of treated water distributed water and water stored in tanks. This study warns to the importance of controlling the formation of trihalomethanes in water throughout treatment and distribution for users.


Assuntos
Desinfetantes , Poluentes Químicos da Água , Purificação da Água , Cloro , Desinfetantes/análise , Desinfecção , Halogenação , Humanos , Análise Multivariada , Trialometanos/análise , Água , Poluentes Químicos da Água/análise
11.
Sci Total Environ ; 782: 146541, 2021 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-33839668

RESUMO

Microplastics (MPs) are emerging and ubiquitous contaminants which have been gaining prominence since the last decade to nowadays. This is due to their possible adverse effects in aquatic ecosystems as well as the huge amount of plastic waste exponentially generated around the globe. Plastics may be introduced either directly to water bodies or indirectly to the aquatic systems by being carried by the wind, from emissions of contaminated effluents, and soil leaching, among other processes. In turn, these debris may interact with organic and inorganic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs) and trace constituents, and with microorganisms. Although the abundance of microplastics from South Atlantic waters is among the highest found worldwide, the number of studies in these marine waters regarding MP contamination is still scarce. Additionally, there still are no consensus on the best sampling conditions, which may be underestimating MPs. In this way, adequate MPs studies regarding their distribution, exposure levels, chemical and biological interactions are highly suggested in order to better understand both environmental and human health potential risks. This review assessed advances in sampling, analytical methodologies, characterization and understanding of MP sources in these marine waters in comparison to data from other regions around the globe.

12.
Am J Ophthalmol Case Rep ; 22: 101034, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33623832

RESUMO

PURPOSE: To present a case of an atypical unilateral multifocal choroiditis that occurred in temporal association to an acute covid-19 infection. METHOD: A 23-year-old highly myopic man presented with reduced vision in the right eye while under medical quarantine due to direct exposure to COVID-19 infection. Five days after developing mild COVID symptoms (fever, cough and anosmia) he noticed acute painless loss of central vision in his right eye. Systemic evaluation at presentation was positive for SARS-CoV-2 detected via both a pharyngeal swab and serologic titers. Dilated fundus exam was performed, followed by color fundus pictures, optic coherence tomography (OCT), fundus autofluorescence (FAF) and fluorescein angiography (FA). RESULTS: Fundoscopic examination of the right eye revealed the presence of multiple discrete, slightly elevated yellow-whitish placoid lesions at the posterior pole. The visual acuity was 20/800. The left eye was normal with 20/20 vision. The patient was placed on oral corticosteroids and the lesions rapidly improved. CONCLUSION: The patient had an MFC chorioretinitis around the same time that he had a documented acute covid infection. Though the temporal relationship could be by chance alone, communicating this case to the ophthalmic community is warranted to see if other similar cases are noted.

13.
J Autism Dev Disord ; 51(6): 2091-2103, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32915356

RESUMO

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by impairments in social interaction, executive functioning, sensory-perceptual abilities and behaviour, such as anxious/depressed states, attention problems, aggression, or somatic complains. However, the dynamic relationship between these dimensions remains to be addressed. Therefore, we explored the link between executive functions, sensory processing and behaviour in 79 children and adolescents with ASD. Results showed significant associations between all dimensions-executive functions, sensory processing and behaviour. Furthermore, using structural equation modelling methods, we observed a mediation effect of executive functioning, specifically the domain pertaining to emotion regulation and control, and in the relationship between sensory processing abnormalities and behavioural problems. We discuss the importance of emotion regulation as a mediator between sensory processing and behavioural impairments and its impact in social competence in ASD.


Assuntos
Transtorno do Espectro Autista/fisiopatologia , Transtorno do Espectro Autista/psicologia , Comportamento Infantil/psicologia , Função Executiva/fisiologia , Sensação/fisiologia , Adolescente , Escala de Avaliação Comportamental , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Inquéritos e Questionários
15.
Brasília; BIREME; maio 29, 2020.
Não convencional em Português | PIE | ID: biblio-1100376

RESUMO

O mapa apresenta uma visão geral das evidências sobre os efeitos das Plantas Medicinais e Fitoterapia para cicatrização e doenças agudas. A partir de uma ampla busca bibliográfica foram incluídos no mapa 16 estudos de revisão sistemática. Todos os estudos foram avaliados, caracterizados e categorizados por um grupo de pesquisadores do Laboratório de Pesquisa & Desenvolvimento de Práticas Integrativas e Complementares (LabPICs) da Faculdade de Farmácia da Universidade Federal do Rio de Janeiro.


El mapa presenta una visión general de la evidencia sobre los efectos de las plantas medicinales y la fitoterapia para cicatrización y las enfermedades agudas. A partir de una amplia búsqueda bibliográfica, se incluyeron 16 estudios de revisión sistemática en el mapa. Todos los estudios fueron evaluados, caracterizados y categorizados por un grupo de investigadores del Laboratorio de Investigación y Desarrollo para Prácticas Integrativas y Complementarias (LabPIC) en la Facultad de Farmacia de la Universidad Federal de Rio de Janeiro.


The map presents an overview of the evidence on the effects of Medicinal Plants and Phytotherapy for for wound healing and acute diseases. From a wide bibliographic search, 16 systematic review studies were included in the map. All studies were evaluated, characterized and categorized by a group of researchers from the Research & Development Laboratory for Integrative and Complementary Practices (LabPICs) at the Faculty of Pharmacy, Federal University of Rio de Janeiro.


Assuntos
Humanos , Plantas Medicinais , Cicatrização , Resultado do Tratamento , Fitoterapia/métodos , Fitoterapia/estatística & dados numéricos
16.
J Nanosci Nanotechnol ; 20(1): 31-41, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31383137

RESUMO

Consumer demand for cosmetics is growing, causing a need to develop new systems to release active ingredients. Among these, nanostructured lipid carriers (NLCs) have certain advantages regarding penetration of active compounds in the skin. The study reported here aimed to develop an NLC system for controlled release of vitamin E, a substance that has antioxidant and photoprotective properties. The NLCs containing vitamin E (NLC-VE) were prepared by the melting-emulsionsolidification method, using beeswax as the solid lipid, medium-chain triglycerides (MCTs), coconut oil or avocado oil as liquid lipids and three different nonionic surfactants. The composition of the system was defined by studying the effect of various experimental factors on the size distribution, average diameter and physical stability of the nanoparticles. The optimization of these characteristics, achieved by a Box-Behnken statistical design, showed that 8% w/w of the nonionic surfactant Tween 80, 24% ultrasound amplitude and processing time of 2 minutes and 16 seconds generated nanoparticles with homogeneous size (PDI = 0.11±0.02), average diameter of 180±20 nm and physical stability of 12 weeks. The NLC-VE systems prepared under the optimal conditions, containing Tween 80, beeswax and MCTs, were formulated as viscous suspensions by adding Pluronic F-127, a poly(ethylene oxide)-poly(propylene oxide) block copolymer, at a concentration of 10% w/w. The colloidal nanosuspension obtained had a viscosity of 222 mPa·s and released 70% of the active substance in 6 hours, indicating it is a promising candidate for controlled release of vitamin E.


Assuntos
Nanopartículas , Nanoestruturas , Preparações de Ação Retardada , Portadores de Fármacos , Lipídeos , Tamanho da Partícula , Vitamina E , Ceras
17.
São Paulo; BIREME; 2020.
Não convencional em Português | PIE | ID: biblio-1097258

RESUMO

O mapa apresenta uma visão geral das evidências sobre os efeitos das Plantas Medicinais e Fitoterapia para Saúde Mental e Qualidade de Vida. A partir de uma ampla busca bibliográfica foram incluídos no mapa 37 estudos de revisão sistemática. Todos os estudos foram avaliados, caracterizados e categorizados por um grupo de pesquisadores do Laboratório de Pesquisa & Desenvolvimento de Práticas Integrativas e Complementares (LabPICs) da Faculdade de Farmácia da Universidade Federal do Rio de Janeiro.


El mapa presenta una visión general de la evidencia sobre los efectos de las plantas medicinales y la fitoterapia para ela salud mental y calidad de vida. A partir de una amplia búsqueda bibliográfica, se incluyeron 37 estudios de revisión sistemática en el mapa. Todos los estudios fueron evaluados, caracterizados y categorizados por un grupo de investigadores del Laboratorio de Investigación y Desarrollo para Prácticas Integrativas y Complementarias (LabPIC) en la Facultad de Farmacia de la Universidad Federal de Rio de Janeiro.


The map presents an overview of the evidence on the effects of Medicinal Plants and Phytotherapy for mental health and quality of life. From a wide bibliographic search, 37 systematic review studies were included in the map. All studies were evaluated, characterized and categorized by a group of researchers from the Research & Development Laboratory for Integrative and Complementary Practices (LabPICs) at the Faculty of Pharmacy, Federal University of Rio de Janeiro.


Assuntos
Humanos , Qualidade de Vida/psicologia , Saúde Mental , Fitoterapia/métodos , Fitoterapia/estatística & dados numéricos
18.
São Paulo; BIREME; 2020.
Não convencional em Português | PIE | ID: biblio-1097257

RESUMO

O mapa apresenta uma visão geral das evidências sobre os efeitos das Plantas Medicinais e Fitoterapia para Distúrbios Metabólicos e Fisiológicos. A partir de uma ampla busca bibliográfica foram incluídos no mapa 48 estudos de revisão sistemática. Todos os estudos foram avaliados, caracterizados e categorizados por um grupo de pesquisadores do Laboratório de Pesquisa & Desenvolvimento de Práticas Integrativas e Complementares (LabPICs) da Faculdade de Farmácia da Universidade Federal do Rio de Janeiro.


El mapa presenta una visión general de la evidencia sobre los efectos de las plantas medicinales y la fitoterapia para el trastornos metabólicos y fisiológicos. A partir de una amplia búsqueda bibliográfica, se incluyeron 48 estudios de revisión sistemática en el mapa. Todos los estudios fueron evaluados, caracterizados y categorizados por un grupo de investigadores del Laboratorio de Investigación y Desarrollo para Prácticas Integrativas y Complementarias (LabPIC) en la Facultad de Farmacia de la Universidad Federal de Rio de Janeiro.


The map presents an overview of the evidence on the effects of Medicinal Plants and Phytotherapy for Metabolic and Physiological Disorders. From a wide bibliographic search, 48 systematic review studies were included in the map. All studies were evaluated, characterized and categorized by a group of researchers from the Research & Development Laboratory for Integrative and Complementary Practices (LabPICs) at the Faculty of Pharmacy, Federal University of Rio de Janeiro.


Assuntos
Humanos , Terapias Complementares/métodos , Fitoterapia/instrumentação , Fitoterapia/estatística & dados numéricos
19.
São Paulo; BIREME; 2020.
Não convencional em Português | PIE | ID: biblio-1097256

RESUMO

O mapa apresenta uma visão geral das evidências sobre os efeitos das Plantas Medicinais e Fitoterapia para dor e doenças crônicas. A partir de uma ampla busca bibliográfica foram incluídos no mapa 49 estudos de revisão sistemática. Todos os estudos foram avaliados, caracterizados e categorizados por um grupo de pesquisadores do Laboratório de Pesquisa & Desenvolvimento de Práticas Integrativas e Complementares (LabPICs) da Faculdade de Farmácia da Universidade Federal do Rio de Janeiro.


El mapa presenta una visión general de la evidencia sobre los efectos de las plantas medicinales y la fitoterapia para el dolor y las enfermedades crónicas. A partir de una amplia búsqueda bibliográfica, se incluyeron 49 estudios de revisión sistemática en el mapa. Todos los estudios fueron evaluados, caracterizados y categorizados por un grupo de investigadores del Laboratorio de Investigación y Desarrollo para Prácticas Integrativas y Complementarias (LabPIC) en la Facultad de Farmacia de la Universidad Federal de Rio de Janeiro.


The map presents an overview of the evidence on the effects of Medicinal Plants and Phytotherapy for pain and chronic diseases. From a wide bibliographic search, 49 systematic review studies were included in the map. All studies were evaluated, characterized and categorized by a group of researchers from the Research & Development Laboratory for Integrative and Complementary Practices (LabPICs) at the Faculty of Pharmacy, Federal University of Rio de Janeiro.


Assuntos
Humanos , Dor Crônica/prevenção & controle , Dor Crônica/terapia , Fitoterapia/instrumentação , Fitoterapia/estatística & dados numéricos
20.
J Pain Res ; 12: 1223-1233, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31114304

RESUMO

Objectives: To investigate the prevalence of anxiety, depression and mixed anxiety and depressive disorder (MADD) and factors associated with these conditions in women with chronic pelvic pain (CPP) compared to a pain-free control group. Methods: A cross-sectional study was conducted with 100 women with CPP and 100 without CPP. The Hospital Anxiety and Depression Scale (HADS) was used to evaluate the presence of anxiety and depression. Sociodemographic, behavioral and clinical characteristics were investigated. Fisher's exact test was used to compare characteristics between groups. A log-binomial regression model was used, with adjustment for age, skin color, schooling, body mass index and pain. Prevalence ratios (PR), together with their 95% confidence intervals (CI), were calculated to investigate factors associated with anxiety, depression and MADD. Results: The prevalence of anxiety was 66% in the CPP group and 49% in the controls (p=0.02). Depression was identified in 63% of the women with CPP and in 38% of the controls (p<0.01). MADD was present in 54% of the CPP group and in 28% of the controls (p<0.01). In the adjusted analysis, CPP (PR=1.3; 95%CI: 1.1-1.6), physical abuse (PR=1.5; 95%CI: 1.2-1.8) and sexual abuse (PR=1.5; 95%CI: 1.1-1.8) were independently associated with anxiety. Women of 25 to 34 years of age were less likely to have anxiety (PR=0.6; 95%CI: 0.4-0.8). CPP (PR=1.6; 95%CI: 1.2-2.2), physical abuse (PR=1.3; 95%CI: 1.1-1.7) and sexual abuse (PR=1.7; 95%CI: 1.3-2.2) were independently associated with depression. CPP (PR=1.9; 95%CI: 1.3-2.7), smoking (PR=1.5; 95%CI: 1.1-2.1), physical abuse (PR=1.4; 95%CI: 1.1-1.9) and sexual abuse (PR=1.4; 95%CI: 1.1-1.8) were independently associated with MADD. Conclusions: The prevalence of anxiety, depression and MADD was higher in women with CPP compared to the pain-free controls. Factors associated with mental disorders were identified. The independent association between CPP and anxiety, depression and MADD was noteworthy. These findings suggest that systematic management of psychological factors could contribute towards improving the mental health of these women.

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