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1.
Lasers Med Sci ; 39(1): 155, 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38865020

RESUMO

The aim of this systematic review and meta-analysis (SRM) was to evaluate the effectiveness of the adjunctive use of antimicrobial photodynamic therapy (aPDT) in non-surgical periodontal treatment (NSPT) in subjects with Human Immunodeficiency Virus (HIV) and periodontitis. This SRM was registered in PROSPERO (CRD42023410180) and followed the guidelines of PRISMA 2020. Searches were performed in different electronic databases. Risk of bias was performed using the Cochrane Risk of Bias tool (RoB 2.0) for randomized clinical trials (RCT). Meta-analysis was performed using Rev Man software. The mean difference (MD) measure of effect was calculated, the random effect model was applied with a 95% confidence interval, and heterogeneity was tested by the I2 index. The certainty of the evidence was rated using GRADE. A total of 1118 records were screened, and four studies were included. There was a greater reduction in the microbial load of periodontopathogens after NSPT with aPDT. Meta-analysis showed that probing depth (post 3 and 6 months) and clinical attachment loss (post 6 months) were lower for the aPDT-treated group than the NSPT alone: MD -0.39 [-0.74; -0.05], p = 0.02; MD -0.70 [-0.99; -0.41], p < 0.0001; MD -0.84 [-1,34; -0.34], p = 0.0001, respectively. Overall, the studies had a low risk of bias and, the certainty of evidence was rated as moderate. It is suggested that aPDT is a promising adjuvant therapy, showing efficacy in the reduction of the microbial load and in some clinical parameters of individuals with periodontitis and HIV.


Assuntos
Infecções por HIV , Periodontite , Fotoquimioterapia , Humanos , Fotoquimioterapia/métodos , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Periodontite/terapia , Periodontite/tratamento farmacológico , Periodontite/microbiologia , Anti-Infecciosos/uso terapêutico , Anti-Infecciosos/administração & dosagem
2.
Crit Rev Microbiol ; 48(2): 161-196, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34432563

RESUMO

Infectious diseases are one of the leading cause of mortality and morbidity worldwide. Metal-Organic Frameworks (MOFs), which are porous coordination materials composed of bridging organic ligands and metallic ions or clusters, exhibits great potential to be used against several pathogens, such as bacteria, viruses, fungi and protozoa. MOFs can show sustained release capability, high surface area, adjustable pore size and structural flexibility, which makes them good candidates for new therapeutic systems. This review provides a detailed summary of the biological application of MOFs, focussing on diagnosis and treatment of infectious diseases. MOFs have been reported for usage as antimicrobial agents, drug delivery systems, therapeutic composites, nanozymes and phototherapies. Furthermore, different MOF-based biosensors have also been developed to detect specific pathogens by electrochemical, fluorometric and colorimetric assays. Finally, we present limitations and perspectives in this field.


Assuntos
Doenças Transmissíveis , Estruturas Metalorgânicas , Bactérias/genética , Doenças Transmissíveis/diagnóstico , Doenças Transmissíveis/tratamento farmacológico , Sistemas de Liberação de Medicamentos , Humanos , Estruturas Metalorgânicas/química , Porosidade
3.
Sensors (Basel) ; 22(10)2022 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-35632090

RESUMO

Here, we describe 4-dimethylaminoantipyrine (4-DMAA)-mediated interfacing as a broad biochemical indicator to stabilize and promote the higher response of electrodes for immunological detection. We hypothesized that the improved biological interactions of 4-DMAA with electrodes and biological samples may be due to the interaction properties of the benzene and pyrazole chemical groups with graphite and proteins, respectively. In order to demonstrate that 4-DMAA could be used as a general indicator in electrochemical immunoassays, we used peptides as probes for the diagnosis of four neglected tropical infectious diseases Tegumentary leishmaniasis, Visceral leishmaniasis, Strongyloidiasis, and Leprosy on commercial graphite screen-printed electrodes. 4-DMAA oxidation was used to indicate specific biological recognition between the epitope-based peptide and serum immunoglobulin G (IgG) from infected patients. We demonstrated that 4-DMAA should be incorporated into the electrodes prior to serum application, which avoids interference with its sensitivity and specificity. In addition, 4-DMAA oxidizes at a low anodic potential, and the oxidation peak is useful for detecting proteins in biological fluids. In summary, we have successfully demonstrated the broad application of 4-DMAA as a general indicator for the specific diagnosis of four infectious diseases in electrochemical immunosensors. Such a strategy is quite advantageous for indirect detection of proteins that lack electrochemical activities or are spatially inaccessible on the electrode surface. This new indicator opens a new avenue for monitoring biological recognition, especially for immunosensors.


Assuntos
Técnicas Biossensoriais , Grafite , Aminopirina , Eletrodos , Humanos , Imunoensaio
4.
Inorg Chem ; 60(16): 11739-11744, 2021 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-34101467

RESUMO

Metal-organic frameworks (MOFs) offer many opportunities for applications across biology and medicine. Their wide range of chemical composition makes toxicologically acceptable formulation possible, and their high level of functionality enables possible applications as delivery systems for therapeutics agents. Surface modifications have been used in drug delivery systems to minimize their interaction with the bulk, improving their specificity as targeted carriers. Herein, we discuss a strategy to achieve a tumor-targeting drug-loaded MOF using "click" chemistry to anchor functional folic acid (FA) molecules on the surface of N3-bio-MOF-100. Using curcumin (CCM) as an anticancer drug, we observed drug loading encapsulation efficiencies (DLEs) of 24.02 and 25.64% after soaking N3-bio-MOF-100 in CCM solutions for 1 day and 3 days, respectively. The success of postsynthetic modification of FA was confirmed by 1H NMR spectroscopy, Fourier transform infrared spectroscopy (FTIR), and liquid chromatography-mass spectrometry (LC-MS). The stimuli-responsive drug release studies demonstrated an increase of CCM released under acidic microenvironments. Moreover, the cell viability assay was performed on the 4T1 (breast cancer) cell line in the presence of CCM@N3-bio-MOF-100 and CCM@N3-bio-MOF-100/FA carriers to confirm its biological compatibility. In addition, a cellular uptake study was conducted to evaluate the targeting of tumor cells.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Curcumina/química , Portadores de Fármacos/química , Estruturas Metalorgânicas/química , Terapia de Alvo Molecular , Química Click , Curcumina/farmacologia , Curcumina/uso terapêutico , Ácido Fólico/química
5.
J Food Sci Technol ; 57(9): 3232-3243, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32728271

RESUMO

There was few studies using the simultaneous reduction of fat and sodium chloride, as well as the stability of the meat products with these reductions. This study aimed to evaluate the effects of fat and sodium chloride reduction in beef burgers during storage. For this, two treatments were produced: T1-without fat and sodium chloride reduction (control) and T2-with 50% fat reduction + 5% fructooligosaccharides and with the replacement of 50% of sodium chloride by potassium chloride. Physicochemical analysis and sensory acceptance were performed. According to results, the pH increased (p < 0.05) with 120 days. For the lipid oxidation, there was an interaction between treatments and storage. There was an increase in TBARS with storage for both treatments. T2 had the highest TBARS at 0, 30, and 60 days. For the color before cooking, there was a reduction in the redness (p < 0.05) with 90 days. After cooking, the lightness reduced at 90 days, while the redness increased at 90 days. However, the instrumental changes were not perceived by consumers. For the sensory acceptance, there was a reduction in the flavor, texture and overall liking with storage. However, despite the decline, the averages remained in the acceptance zone. The beef burgers were perceived as less juiciness and less salty after storage. Thus, the storage affects the physicochemical characteristics and sensory evaluation of beef burgers low-fat and low-sodium. The results reinforce the need for more studies with the storage of meat products with fat and sodium chloride reduced.

7.
J Oral Rehabil ; 46(5): 424-432, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30614042

RESUMO

AIMS: Despite the fact that self-medication associated with temporomandibular disorders is clinically quite common and is considerably harmful, there is no instrument in the literature to assess this practice. The aim of this study was to construct and validate a questionnaire to study this important issue specifically. METHODS: After completing the literature review, semi-structured interviews, focus group and pretest, the first version of the instrument resulted in 62 questions. After face validity testing, pretest and the necessary corrections and changes, the instrument had 41 questions and was administered for validation to a sample of 110 patients diagnosed with TMD according to the RDC/TMD (1992) criteria. RESULTS: According to factor analysis, seven questions with loadings below 0.30 were removed, with the final version consisting of 34 questions. The analysis of internal consistency and temporal stability showed values of 0.844 for Cronbach's alpha coefficient and a Kappa coefficient of 0.810, respectively, indicating that the instrument presents sufficient reliability and reproducibility for its proposed objective. After validation, with the ultimate goal of classifying patients according to the degree/intensity of self-medication, a classification was proposed that allowed the discrimination of results into three distinct groups regarding self-medication exposure: mild, moderate or severe, based on the self-medication raw point score. CONCLUSION: The results of the instrument validation process showed that it has suitable properties for evaluating the practice of self-medication in patients with TMD.


Assuntos
Manejo da Dor/estatística & dados numéricos , Automedicação/estatística & dados numéricos , Transtornos da Articulação Temporomandibular/tratamento farmacológico , Grupos Focais , Humanos , Medição da Dor , Qualidade de Vida , Reprodutibilidade dos Testes , Literatura de Revisão como Assunto , Automedicação/psicologia , Inquéritos e Questionários , Transtornos da Articulação Temporomandibular/complicações , Transtornos da Articulação Temporomandibular/fisiopatologia , Transtornos da Articulação Temporomandibular/psicologia
8.
Rev Gaucha Enferm ; 40(spe): e20180220, 2019 Jan 10.
Artigo em Português, Inglês | MEDLINE | ID: mdl-30652806

RESUMO

OBJECTIVE: To analyze the reports of incidents related to potentially hazardous medications distributed at a teaching hospital in the interior of São Paulo. METHODS: A descriptive, retrospective study with a quantitative approach of data from the analysis of pharmacovigilance notifications that occurred between January 2009 and December 2014, from tables and graphs, showing the absolute/relative frequencies. RESULTS: From 786 reports of pharmacovigilance, 188 were related to potentially hazardous medicines, 36.7% of which were ineffective, 32.44% were technical complaints, 15.95% were adverse reactions, 7.44% were phlebitis, 5.13% were extravasation , 1.06% dispensing error, 0.53% administration error and 0.53% medication error. The professionals who most notified were nurses. The most commonly reported pharmacological groups were drugs with action on the nervous system (35.63%). CONCLUSION: The analysis showed that there were a significant number of reports and the need to adopt strategies to ensure greater patient safety.


Assuntos
Hospitais de Ensino , Erros de Medicação/estatística & dados numéricos , Brasil , Humanos , Estudos Retrospectivos
9.
Nutr J ; 17(1): 26, 2018 02 21.
Artigo em Inglês | MEDLINE | ID: mdl-29466985

RESUMO

BACKGROUND: Proinflammatory biomarkers levels are increased among patients with cardiovascular disease, and it is known that both the presence of insulin resistance and diet may influence those levels. However, these associations are not well studied among patients with established cardiovascular disease. Our objective is to compare inflammatory biomarker levels among cardiovascular disease secondary prevention patients with and without insulin resistance, and to evaluate if there is any association between plasma fatty acid levels and inflammatory biomarker levels among them. METHODS: In this cross-sectional sub-study from the BALANCE Program Trial, we collected data from 359 patients with established cardiovascular disease. Plasma fatty acids and inflammatory biomarkers (interleukin (IL)-1ß, IL-6, IL-8, IL-10, IL-12, high sensitive C-reactive protein (hs-CRP), adiponectin, and tumor necrosis factor (TNF)-alpha) were measured. Biomarkers and plasma fatty acid levels of subjects across insulin resistant and not insulin resistant groups were compared, and general linear models were used to examine the association between plasma fatty acids and inflammatory biomarkers. RESULTS: Subjects with insulin resistance had a higher concentration of hs-CRP (p = 0.002) and IL-6 (p = 0.002) than subjects without insulin resistance. Among subjects without insulin resistance there was a positive association between stearic fatty acid and IL-6 (p = 0.032), and a negative association between alpha-linolenic fatty acid and pro-inflammatory biomarkers (p < 0.05). Among those with insulin resistance there was a positive association between monounsaturated fatty acids and arachidonic fatty acid and adiponectin (p < 0.05), and a negative association between monounsaturated and polyunsaturated fatty acids and pro-inflammatory biomarkers (p < 0.05), as well as a negative association between polyunsaturated fatty acids and adiponectin (p < 0.05). Our study has not found any association between hs-CRP and plasma fatty acids. CONCLUSIONS: Subjects in secondary prevention for cardiovascular disease with insulin resistance have a higher concentration of hs-CRP and IL-6 than individuals without insulin resistance, and these inflammatory biomarkers are positively associated with saturated fatty acids and negatively associated with unsaturated fatty acids.


Assuntos
Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/prevenção & controle , Ácidos Graxos/sangue , Inflamação/sangue , Resistência à Insulina , Prevenção Secundária/métodos , Adiponectina/sangue , Idoso , Biomarcadores/sangue , Brasil , Proteína C-Reativa , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fator de Necrose Tumoral alfa/sangue
10.
J Obstet Gynaecol ; 38(7): 975-978, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29553849

RESUMO

This was a cross-sectional study of women of reproductive age with systemic lupus erythematosus (SLE) being treated at Bahiana School Rheumatology Service in Brazil. The study aimed to assess the prevalence of contraceptive counselling and use. An interview was performed, and the results were analysed before and after the SLE diagnosis. Eighty-five women were included; the mean age of the group was 32.98 ± 8.39 years. Before SLE diagnosis, most of the patients had used some contraceptive method; mainly oral contraceptives (54%) or hormone injections (21%). After SLE diagnosis, 53% of patients did not use any contraceptive method. Among the remaining patients who continued using contraceptives, 22% used condoms, 11% used combined oral contraceptives and 7% used hormone injections. Although 62% of the patients regularly visited the gynaecologist, 56% were unaware of which contraceptive method could be used safely. Thus, a better contraceptive counselling of women of a reproductive age should be performed after SLE diagnosis. Impact Statement What is already known on this subject? Women diagnosed with SLE have inadequate counselling about family planning. What the results of this study add? Brazilian women with SLE have a low prevalence of contraceptive use after their diagnosis and are exposed to having high-risk pregnancies. What the implications are of these findings for clinical practice and/or further research? The results we found highlight the importance of continued medical educational programmes and establish questions for further studies in order to investigate the interventions used to improve the contraceptive use for women diagnosed with SLE.


Assuntos
Comportamento Contraceptivo/estatística & dados numéricos , Anticoncepção/estatística & dados numéricos , Aconselhamento/estatística & dados numéricos , Lúpus Eritematoso Sistêmico/complicações , Adulto , Brasil , Estudos Transversais , Serviços de Planejamento Familiar/normas , Feminino , Humanos , Gravidez , Adulto Jovem
11.
Anal Bioanal Chem ; 408(28): 8089-8098, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27595581

RESUMO

An analytical method based on a modified QuPPe (quick polar pesticide) extraction procedure coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was evaluated for the determination of four polar compounds (chlorate, fosetyl-Al, maleic hydrazide, and perchlorate) in nutraceutical products obtained from soy. Experimental conditions including extraction such as solvent, acidification, time, and clean-up sorbents were varied. Acidified acetonitrile (1 % formic acid, v/v) was used as extraction solvent instead of methanol (conventional QuPPe), which provides a doughy mixture which cannot be injected into the LC. Clean-up or derivatization steps were avoided. For analysis, several stationary phases were evaluated and Hypercarb (porous graphitic carbon) provided the best results. The optimized method was validated and recoveries ranged between 46 and 119 %, and correction factors can be used for quantification purposes bearing in mind that inter-day precision was equal to or lower than 17 %. Limits of quantification (LOQs) ranged from 4 to 100 µg kg-1. Soy-based nutraceutical products were analyzed and chlorate was detected in five samples at concentrations between 63 and 1642 µg kg-1. Graphical Abstract Analysis of polar compounds in soy-based nutraceutical products.


Assuntos
Suplementos Nutricionais/análise , Contaminação de Medicamentos , Glycine max/química , Resíduos de Praguicidas/análise , Cápsulas , Cromatografia Líquida , Contaminação de Medicamentos/prevenção & controle , Limite de Detecção , Reprodutibilidade dos Testes , Comprimidos , Espectrometria de Massas em Tandem , Fatores de Tempo
12.
J Cosmet Laser Ther ; 18(1): 48-9, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26073116

RESUMO

Silicone oil injections are often used for soft tissue augmentation and local and general adverse effects occurring from a few months to 15 years after injection have been reported. Here, we present a case of delayed granuloma formation due to liquid injectable silicone with large extent of involvement, which precluded surgical removal. Our patient was successfully treated with minocycline, considering its anti-inflammatory, immunomodulating and antigranulomatous properties. This case presents minocycline monotherapy as a useful treatment option for the management of severe granuloma induced by silicone use when surgical excision is not possible.


Assuntos
Antibacterianos/uso terapêutico , Granuloma de Corpo Estranho/tratamento farmacológico , Minociclina/uso terapêutico , Dermatopatias/tratamento farmacológico , Adulto , Feminino , Granuloma de Corpo Estranho/induzido quimicamente , Humanos , Óleos de Silicone/efeitos adversos , Dermatopatias/induzido quimicamente
13.
J Cosmet Laser Ther ; 17(3): 143-7, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25549814

RESUMO

Striae distensae are atrophic dermal scars associated with psychosocial stress. Several treatments have been used but there is no gold standard until now. Fractional photothermolysis has been described as a successful and safe method to treat scars. In this description, we report 4 patients (Fitzpatrick phototype IV) who developed striae distensae after long-term use of topical corticosteroids and were successfully treated with fractional nonablative 1540 nm Erbium: glass laser.


Assuntos
Lasers de Estado Sólido/uso terapêutico , Terapia com Luz de Baixa Intensidade/métodos , Estrias de Distensão/radioterapia , Administração Cutânea , Corticosteroides/administração & dosagem , Corticosteroides/efeitos adversos , Técnicas Cosméticas/instrumentação , Humanos , Terapia com Luz de Baixa Intensidade/instrumentação , Estrias de Distensão/etiologia
14.
Genet Mol Biol ; 37(2): 343-9, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25071398

RESUMO

Interleukin 18 (IL-18) is a proinflammatory cytokine that plays a role in host defense by upregulating both innate and acquired immune responses. Analysis of IL18 polymorphisms may be clinically important since their roles have been recognized in a variety of inflammatory and autoimmune disorders. However, the role of this cytokine polymorphisms in kidney transplant still remains unclear. In this study, we evaluated the associations between IL18 polymorphisms and graft function assessed by creatinine clearance in kidney transplant recipients. A total of 82 kidney transplant recipients and 183 healthy controls were enrolled, and frequencies of alleles, genotypes and haplotypes for IL18 polymorphisms were determined and compared with creatinine clearance. The -607C/A (rs1946518) and -137C/G (rs187238) variant alleles in the IL18 gene were determined by polymerase chain reaction. In our study, no significant association was found between the IL18 variants and creatinine clearance (p > 0.05). Nonetheless, polymorphism analysis revealed an increase in the frequency of the IL18 major haplotype -607C/-137G in kidney transplant patients (odds ratio 2.57, 95% confidence interval 1.45-4.55, p = 0.0014). Finally, we found that IL18 polymorphisms did not influence the renal function and that IL18 haplotype -607C/-137G seems to be associated with kidney transplant recipients.

15.
Rev Bras Enferm ; 77(1): e20230084, 2024.
Artigo em Inglês, Português | MEDLINE | ID: mdl-38422309

RESUMO

OBJECTIVES: to map the production of technologies aimed at monitoring falls in a hospital environment protected by registered patents. METHODS: a technological prospecting of international patents, with a quantitative approach, with search carried out between February and March 2022 in the Derwent Innovations Index database with descriptors fall, hospital, monitoring. RESULTS: 212 patents were found, with the majority filed and published since 2010, by Tran B (9) and Cerner Innovation Inc (9), focused on health technology. Universities were responsible for 13% of deposits. There was a predominance of records from the United States (43.4%), China (21.7%) and Japan (12.3%), in addition to technological strategies classified as devices for the environment (80.7%) and for preventing falls (66.5%) as well as trend towards resources with multiple functionalities in the same technology. CONCLUSIONS: the plurality of functions in the same device reflects the search for optimizing resources and the concern with comprehensive care.


Assuntos
Acidentes , Hospitais , Humanos , Tecnologia Biomédica , China , Tecnologia
16.
J Am Nutr Assoc ; 43(1): 77-91, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37167368

RESUMO

The aim of this study was to systematically review the current literature and analyze the effects of beetroot-based supplements (BRS) on muscular performance. Randomized controlled trials that assessed the acute or short-term effects of BRS administration on muscular endurance and/or strength in healthy male individuals were retrieved from PubMed, EMBASE, CENTRAL, and Web of Science databases from inception to February 20th, 2023. In addition, we also searched preprint papers in medRxiv.org, bibRxiv.org; thesis and dissertations included in oatd.org; and clinical trials published in ClinicalTrials.gov. Data extraction, risk of bias, and study quality were assessed by 2 authors. Meta-analyses and subgroup analyses of standardized mean differences (SMD) were performed using a random-effects model. A total of 1486 records were identified in the databases and 2 were obtained by manual search in the reference list. Of those, 27 studies attended eligibility criteria and composed this systematic review. BRS administration resulted in a positive effect on muscular endurance (SMD: 0.31; 95% confidence interval (CI): 0.10 to 0.51; p < 0.01; n = 16 studies). There was an overall significative effect for muscular strength (SMD: 0.26; 95% CI: 0.03 to 0.48; p < 0.05; n = 18 studies), but a subgroup analysis showed that significant effects were found when strength was measured in a fatigued (SMD: 0.64; 95% CI: 0.25 to 1.03; p < 0.01), but not resting state. BRS administration have a small ergogenic effect on muscular endurance and attenuate the decline in muscular strength in a fatigued state in healthy male individuals.


Beetroot-based supplements can improve muscular endurance and attenuates the decline in muscular strength. These effects are attributed to the inorganic nitrate contained in these products, which ranged from 316­985 mg/day, ingested 2­3 hours before exercise.Beetroot-based supplements administration can generate a modest increase in the number of repetitions performed to failure or in exercise time to exhaustion, which may contribute to the performance and optimization of the results of people involved in isotonic exercises (e.g., resistance training).Beetroot-based supplements ingestion can improve muscular strength, particularly it aids in the recovery of muscular strength after a fatiguing task.


Assuntos
Suplementos Nutricionais , Nível de Saúde , Humanos , Masculino , Força Muscular
17.
J Dent ; 150: 105330, 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39214276

RESUMO

OBJECTIVES: To evaluate in vitro the effects of nano-sized sodium trimetaphosphate (TMPnano) and sodium fluoride (F) added to a 17.5 % hydrogen peroxide (H2O2) bleaching gel on the color change, enamel mechanical and morphological properties, and H2O2 transamelodentinal diffusion. MATERIALS AND METHODS: Bovine enamel/dentin discs (n = 180) were divided according to the bleaching gel: 17.5 % H2O2 (17.5 % HP); 17.5 % H2O2 + 0.1 % F (HP/F); 17.5 % H2O2 + 1 % TMPnano (HP/TMPnano); 17.5 % H2O2 + 0.1 % F + 1 % TMPnano (HP/F/TMPnano) and 35 % H2O2 (35 % HP). The gels were applied for 40 min on three sessions, each session spaced 7 days apart. The total color change (ΔE*ab) according to the Commission Internationale de l'Eclairage (CIE) L*a*b* color change measured by CIEDE2000 (ΔE00), whitening index (ΔWID), surface hardness (SH), surface roughness (Ra), cross-sectional hardness (ΔKHN), and transamelodentinal diffusion were assessed. Enamel surfaces were examined using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDS) analysis. The data were analyzed using ANOVA, followed by the Student-Newman-Keuls test (p < 0.05). RESULTS: ΔE*ab, ΔE00, and ΔWID values were comparable among the gels that produced a bleaching effect post-treatment (p < 0.001). The HP/F/TMPnano group exhibited lower mineral loss (SH and ΔKHN), Ra, and H2O2 diffusion compared to the 17.5 % HP and 35 % HP groups, which had the highest values (p < 0.001). SEM/EDS analysis revealed surface changes in all bleached groups, though these changes were less pronounced with F/TMPnano. CONCLUSIONS: The 17.5 % HP gel containing F/TMPnano maintains the bleaching effect while reducing enamel demineralization, roughness, H2O2 diffusion, and enamel morphological changes. CLINICAL RELEVANCE: Low-Concentration H2O2 bleaching gel containing F/TMPnano can be used as a novel approach to enhance safety and maintain the performance of aesthetic effects.

18.
Future Microbiol ; 19: 213-226, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37934065

RESUMO

Aim: To evaluate the effects of whey protein (WP) supplementation (1.24 mg/g, 24 days) in rats with autism spectrum disorder (ASD) induced by valproic acid (400 mg/kg, single dose). Materials & methods: Wistar rats (14 days old) were divided into four groups: control, ASD, ASD plus WP and WP. Results: WP increased bacterial diversity and the number of colonies. Bacteria from the Firmicutes phylum were predominantly found in the supplemented groups (p < 0.05). WP also improved the animals' memory in the Y-maze test and decreased the time that male animals spent in the 'solitary chamber' (p < 0.05). Conclusion: WP supplementation positively influenced gut microbiota, along with memory.


Thousands of bacteria live in the human intestine. These bacteria help with many functions in the body and are so important that they can communicate with the brain. When the types and abundance of these bacteria change, brain activity can also change. This may be the case in some children with autism spectrum disorder (ASD), who may have an increase in harmful types of bacteria and a decrease in beneficial types of bacteria in the gut. Whey protein is a commonly used protein supplement for muscle growth. However, many studies have shown its benefits for gut bacteria. The authors investigated the effects of whey protein in animals with symptoms of ASD and showed that supplementation with whey protein increased the number of beneficial bacteria. In addition, the rats given whey protein had better memory. ASD-induced rats were less sociable, spending more time by themselves. However, male animals treated with whey protein spent less time alone. Supplementation with whey protein was beneficial for gut bacteria and memory in rats.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Microbioma Gastrointestinal , Masculino , Ratos , Animais , Transtorno Autístico/induzido quimicamente , Transtorno Autístico/tratamento farmacológico , Proteínas do Soro do Leite , Ácido Valproico/farmacologia , Ratos Wistar , Transtorno do Espectro Autista/induzido quimicamente , Transtorno do Espectro Autista/tratamento farmacológico , Transtorno do Espectro Autista/microbiologia , Bactérias , Suplementos Nutricionais
19.
Biomedicines ; 12(8)2024 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-39200216

RESUMO

α-Lipoic acid (LA) is an antioxidant of endogenous production, also obtained exogenously. Oxidative stress is closely associated with hypertension, which causes kidney injury and endothelial dysfunction. Here, we evaluated the cardiovascular and renal effects of LA in the two-kidney-one-clip (2K1C) hypertension model. The rats were divided into four groups: Sham surgery (Sham), the two-kidneys-one-clip (2K1C) group, and groups treated with LA for 14 days (Sham-LA and 2K1C-LA). No changes were observed in the pattern of food, water intake, and urinary volume. The left/right kidney weight LKw/RKw ratio was significantly higher in 2K1C animals. LA treatment did not reverse the increase in cardiac mass. In relation to vascular reactivity, there was an increase in the potency of phenylephrine (PHE) curve in the hypertensive animals treated with LA compared to the 2K1C group and also compared to the Sham group. Vasorelaxation induced by acetylcholine (Ach) and sodium nitroprusside (SNP) were not improved by treatment with LA. Urea and creatinine levels were not altered by the LA treatment. In conclusion, the morphological changes in the aorta and heart were not reversed; however, the treatment with LA mitigated the contraction increase induced by the 2K1C hypertension.

20.
Rev Gaucha Enferm ; 44: e20220020, 2023.
Artigo em Inglês, Português | MEDLINE | ID: mdl-36995808

RESUMO

OBJECTIVE: To analyze patent records aimed at preventing and signaling falls in a Brazilian database. METHOD: Electronic documentary research carried out in the database of the Instituto Nacional da Propriedade Industrial using the word "fall" in the search resource. Patent records related to the prevention and signaling of falls at home and in care environment applied from 2000 to 2021 were included. Tabulated data were evaluated using absolute/relative frequencies. RESULTS: From the 45 patents, 91% were published starting from 2011, with an average of 1214 days between application and publication, 11% of applicants were from public universities and 9% of the inventors were nurses, physician or physical therapists. CONCLUSION: There was a delay in the publication of the patents and small participation of researchers linked to the academic area and health professionals, revealing the need to equip universities and health services in order to guarantee the development of innovations.


Assuntos
Acidentes por Quedas , Humanos , Brasil , Acidentes por Quedas/prevenção & controle , Bases de Dados Factuais
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